diff options
Diffstat (limited to 'arch/sparc')
149 files changed, 3347 insertions, 10809 deletions
diff --git a/arch/sparc/Kbuild b/arch/sparc/Kbuild new file mode 100644 index 00000000000..5cd01161fd0 --- /dev/null +++ b/arch/sparc/Kbuild @@ -0,0 +1,8 @@ +# +# core part of the sparc kernel +# + +obj-y += kernel/ +obj-y += mm/ +obj-y += math-emu/ +obj-y += net/ diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 6c0683d3fcb..1ea3fd95475 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -30,11 +30,14 @@ config SPARC select USE_GENERIC_SMP_HELPERS if SMP select GENERIC_PCI_IOMAP select HAVE_NMI_WATCHDOG if SPARC64 + select HAVE_BPF_JIT + select GENERIC_SMP_IDLE_THREAD config SPARC32 def_bool !64BIT select GENERIC_ATOMIC64 select CLZ_TAB + select ARCH_THREAD_INFO_ALLOCATOR config SPARC64 def_bool 64BIT @@ -61,6 +64,7 @@ config SPARC64 select IRQ_PREFLOW_FASTEOI select ARCH_HAVE_NMI_SAFE_CMPXCHG select HAVE_C_RECORDMCOUNT + select NO_BOOTMEM config ARCH_DEFCONFIG string @@ -73,17 +77,12 @@ config BITS default 32 if SPARC32 default 64 if SPARC64 -config ARCH_USES_GETTIMEOFFSET - bool - default y if SPARC32 - config GENERIC_CMOS_UPDATE bool default y config GENERIC_CLOCKEVENTS - bool - default y if SPARC64 + def_bool y config IOMMU_HELPER bool @@ -154,7 +153,7 @@ source "kernel/Kconfig.freezer" menu "Processor type and features" config SMP - bool "Symmetric multi-processing support (does not work on sun4/sun4c)" + bool "Symmetric multi-processing support" ---help--- This enables support for systems with more than one CPU. If you have a system with only one CPU, say N. If you have a system with more @@ -584,6 +583,9 @@ config SYSVIPC_COMPAT depends on COMPAT && SYSVIPC default y +config KEYS_COMPAT + def_bool y if COMPAT && KEYS + endmenu source "net/Kconfig" diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile index eddcfb36aaf..541b8b075c7 100644 --- a/arch/sparc/Makefile +++ b/arch/sparc/Makefile @@ -19,39 +19,27 @@ ifeq ($(CONFIG_SPARC32),y) # sparc32 # -# -# Uncomment the first KBUILD_CFLAGS if you are doing kgdb source level -# debugging of the kernel to get the proper debugging information. - -AS := $(AS) -32 -LDFLAGS := -m elf32_sparc CHECKFLAGS += -D__sparc__ +LDFLAGS := -m elf32_sparc export BITS := 32 UTS_MACHINE := sparc -#KBUILD_CFLAGS += -g -pipe -fcall-used-g5 -fcall-used-g7 -KBUILD_CFLAGS += -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7 -KBUILD_AFLAGS += -m32 -Wa,-Av8 - -#LDFLAGS_vmlinux = -N -Ttext 0xf0004000 -# Since 2.5.40, the first stage is left not btfix-ed. -# Actual linking is done with "make image". -LDFLAGS_vmlinux = -r +KBUILD_CFLAGS += -m32 -mcpu=v8 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7 +KBUILD_AFLAGS += -m32 -Wa,-Av8 else ##### # sparc64 # -CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64 +CHECKFLAGS += -D__sparc__ -D__sparc_v9__ -D__arch64__ -m64 +LDFLAGS := -m elf64_sparc +export BITS := 64 +UTS_MACHINE := sparc64 -LDFLAGS := -m elf64_sparc -export BITS := 64 -UTS_MACHINE := sparc64 - -KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow \ - -ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare \ - -Wa,--undeclared-regs +KBUILD_CFLAGS += -m64 -pipe -mno-fpu -mcpu=ultrasparc -mcmodel=medlow +KBUILD_CFLAGS += -ffixed-g4 -ffixed-g5 -fcall-used-g7 -Wno-sign-compare +KBUILD_CFLAGS += -Wa,--undeclared-regs KBUILD_CFLAGS += $(call cc-option,-mtune=ultrasparc3) KBUILD_AFLAGS += -m64 -mcpu=ultrasparc -Wa,--undeclared-regs @@ -62,27 +50,15 @@ endif endif head-y := arch/sparc/kernel/head_$(BITS).o -head-y += arch/sparc/kernel/init_task.o -core-y += arch/sparc/kernel/ -core-y += arch/sparc/mm/ arch/sparc/math-emu/ +# See arch/sparc/Kbuild for the core part of the kernel +core-y += arch/sparc/ libs-y += arch/sparc/prom/ libs-y += arch/sparc/lib/ drivers-$(CONFIG_OPROFILE) += arch/sparc/oprofile/ -# Export what is needed by arch/sparc/boot/Makefile -export VMLINUX_INIT VMLINUX_MAIN -VMLINUX_INIT := $(head-y) $(init-y) -VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/ -VMLINUX_MAIN += $(patsubst %/, %/lib.a, $(libs-y)) $(libs-y) -VMLINUX_MAIN += $(drivers-y) $(net-y) - -ifdef CONFIG_KALLSYMS -export kallsyms.o := .tmp_kallsyms2.o -endif - boot := arch/sparc/boot # Default target diff --git a/arch/sparc/boot/Makefile b/arch/sparc/boot/Makefile index d56d199c1aa..6e63afb128d 100644 --- a/arch/sparc/boot/Makefile +++ b/arch/sparc/boot/Makefile @@ -6,8 +6,8 @@ ROOT_IMG := /usr/src/root.img ELFTOAOUT := elftoaout -hostprogs-y := piggyback btfixupprep -targets := tftpboot.img btfix.o btfix.S image zImage vmlinux.aout +hostprogs-y := piggyback +targets := tftpboot.img image zImage vmlinux.aout clean-files := System.map quiet_cmd_elftoaout = ELFTOAOUT $@ @@ -17,58 +17,9 @@ quiet_cmd_piggy = PIGGY $@ quiet_cmd_strip = STRIP $@ cmd_strip = $(STRIP) -R .comment -R .note -K sun4u_init -K _end -K _start $< -o $@ -ifeq ($(CONFIG_SPARC32),y) -quiet_cmd_btfix = BTFIX $@ - cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep > $@ -quiet_cmd_sysmap = SYSMAP $(obj)/System.map - cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap -quiet_cmd_image = LD $@ - cmd_image = $(LD) $(LDFLAGS) $(EXTRA_LDFLAGS) $(LDFLAGS_$(@F)) -o $@ - -define rule_image - $(if $($(quiet)cmd_image), \ - echo ' $($(quiet)cmd_image)' &&) \ - $(cmd_image); \ - $(if $($(quiet)cmd_sysmap), \ - echo ' $($(quiet)cmd_sysmap)' &&) \ - $(cmd_sysmap) $@ $(obj)/System.map; \ - if [ $$? -ne 0 ]; then \ - rm -f $@; \ - /bin/false; \ - fi; \ - echo 'cmd_$@ := $(cmd_image)' > $(@D)/.$(@F).cmd -endef - -BTOBJS := $(patsubst %/, %/built-in.o, $(VMLINUX_INIT)) -BTLIBS := $(patsubst %/, %/built-in.o, $(VMLINUX_MAIN)) -LDFLAGS_image := -T arch/sparc/kernel/vmlinux.lds $(BTOBJS) \ - --start-group $(BTLIBS) --end-group \ - $(kallsyms.o) $(obj)/btfix.o - -# Link the final image including btfixup'ed symbols. -# This is a replacement for the link done in the top-level Makefile. -# Note: No dependency on the prerequisite files since that would require -# make to try check if they are updated - and due to changes -# in gcc options (path for example) this would result in -# these files being recompiled for each build. -$(obj)/image: $(obj)/btfix.o FORCE - $(call if_changed_rule,image) - -$(obj)/zImage: $(obj)/image - $(call if_changed,strip) - @echo ' kernel: $@ is ready' - -$(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE - $(call if_changed,btfix) - -endif - ifeq ($(CONFIG_SPARC64),y) # Actual linking -$(obj)/image: vmlinux FORCE - $(call if_changed,strip) - @echo ' kernel: $@ is ready' $(obj)/zImage: $(obj)/image $(call if_changed,gzip) @@ -79,6 +30,10 @@ $(obj)/vmlinux.aout: vmlinux FORCE @echo ' kernel: $@ is ready' else +$(obj)/zImage: $(obj)/image + $(call if_changed,strip) + @echo ' kernel: $@ is ready' + # The following lines make a readable image for U-Boot. # uImage - Binary file read by U-boot # uImage.o - object file of uImage for loading with a @@ -107,6 +62,10 @@ $(obj)/uImage: $(obj)/image.gz endif +$(obj)/image: vmlinux FORCE + $(call if_changed,strip) + @echo ' kernel: $@ is ready' + $(obj)/tftpboot.img: $(obj)/image $(obj)/piggyback System.map $(ROOT_IMG) FORCE $(call if_changed,elftoaout) $(call if_changed,piggy) diff --git a/arch/sparc/boot/btfixupprep.c b/arch/sparc/boot/btfixupprep.c deleted file mode 100644 index da031159e2b..00000000000 --- a/arch/sparc/boot/btfixupprep.c +++ /dev/null @@ -1,386 +0,0 @@ -/* - Simple utility to prepare vmlinux image for sparc. - Resolves all BTFIXUP uses and settings and creates - a special .s object to link to the image. - - Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ - -#include <stdio.h> -#include <string.h> -#include <ctype.h> -#include <errno.h> -#include <unistd.h> -#include <stdlib.h> -#include <malloc.h> - -#define MAXSYMS 1024 - -static char *symtab = "SYMBOL TABLE:"; -static char *relrec = "RELOCATION RECORDS FOR ["; -static int rellen; -static int symlen; -int mode; - -struct _btfixup; - -typedef struct _btfixuprel { - char *sect; - unsigned long offset; - struct _btfixup *f; - int frel; - struct _btfixuprel *next; -} btfixuprel; - -typedef struct _btfixup { - int type; - int setinitval; - unsigned int initval; - char *initvalstr; - char *name; - btfixuprel *rel; -} btfixup; - -btfixup array[MAXSYMS]; -int last = 0; -char buffer[1024]; -unsigned long lastfoffset = -1; -unsigned long lastfrelno; -btfixup *lastf; - -static void fatal(void) __attribute__((noreturn)); -static void fatal(void) -{ - fprintf(stderr, "Malformed output from objdump\n%s\n", buffer); - exit(1); -} - -static btfixup *find(int type, char *name) -{ - int i; - for (i = 0; i < last; i++) { - if (array[i].type == type && !strcmp(array[i].name, name)) - return array + i; - } - array[last].type = type; - array[last].name = strdup(name); - array[last].setinitval = 0; - if (!array[last].name) fatal(); - array[last].rel = NULL; - last++; - if (last >= MAXSYMS) { - fprintf(stderr, "Ugh. Something strange. More than %d different BTFIXUP symbols\n", MAXSYMS); - exit(1); - } - return array + last - 1; -} - -static void set_mode (char *buffer) -{ - for (mode = 0;; mode++) - if (buffer[mode] < '0' || buffer[mode] > '9') - break; - if (mode != 8 && mode != 16) - fatal(); -} - - -int main(int argc,char **argv) -{ - char *p, *q; - char *sect; - int i, j, k; - unsigned int initval; - int shift; - btfixup *f; - btfixuprel *r, **rr; - unsigned long offset; - char *initvalstr; - - symlen = strlen(symtab); - while (fgets (buffer, 1024, stdin) != NULL) - if (!strncmp (buffer, symtab, symlen)) - goto main0; - fatal(); -main0: - rellen = strlen(relrec); - while (fgets (buffer, 1024, stdin) != NULL) - if (!strncmp (buffer, relrec, rellen)) - goto main1; - fatal(); -main1: - sect = malloc(strlen (buffer + rellen) + 1); - if (!sect) fatal(); - strcpy (sect, buffer + rellen); - p = strchr (sect, ']'); - if (!p) fatal(); - *p = 0; - if (fgets (buffer, 1024, stdin) == NULL) - fatal(); - while (fgets (buffer, 1024, stdin) != NULL) { - int nbase; - if (!strncmp (buffer, relrec, rellen)) - goto main1; - if (mode == 0) - set_mode (buffer); - p = strchr (buffer, '\n'); - if (p) *p = 0; - if (strlen (buffer) < 22+mode) - continue; - if (strncmp (buffer + mode, " R_SPARC_", 9)) - continue; - nbase = 27 - 8 + mode; - if (buffer[nbase] != '_' || buffer[nbase+1] != '_' || buffer[nbase+2] != '_') - continue; - switch (buffer[nbase+3]) { - case 'f': /* CALL */ - case 'b': /* BLACKBOX */ - case 's': /* SIMM13 */ - case 'a': /* HALF */ - case 'h': /* SETHI */ - case 'i': /* INT */ - break; - default: - continue; - } - p = strchr (buffer + nbase+5, '+'); - if (p) *p = 0; - shift = nbase + 5; - if (buffer[nbase+4] == 's' && buffer[nbase+5] == '_') { - shift = nbase + 6; - if (strcmp (sect, ".init.text")) { - fprintf(stderr, - "Wrong use of '%s' BTFIXUPSET in '%s' section.\n" - "BTFIXUPSET_CALL can be used only in" - " __init sections\n", - buffer + shift, sect); - exit(1); - } - } else if (buffer[nbase+4] != '_') - continue; - if (!strcmp (sect, ".text.exit")) - continue; - if (strcmp (sect, ".text") && - strcmp (sect, ".init.text") && - strcmp (sect, ".fixup") && - (strcmp (sect, "__ksymtab") || buffer[nbase+3] != 'f')) { - if (buffer[nbase+3] == 'f') - fprintf(stderr, - "Wrong use of '%s' in '%s' section.\n" - " It can be used only in .text, .init.text," - " .fixup and __ksymtab\n", - buffer + shift, sect); - else - fprintf(stderr, - "Wrong use of '%s' in '%s' section.\n" - " It can be only used in .text, .init.text," - " and .fixup\n", buffer + shift, sect); - exit(1); - } - p = strstr (buffer + shift, "__btset_"); - if (p && buffer[nbase+4] == 's') { - fprintf(stderr, "__btset_ in BTFIXUP name can only be used when defining the variable, not for setting\n%s\n", buffer); - exit(1); - } - initval = 0; - initvalstr = NULL; - if (p) { - if (p[8] != '0' || p[9] != 'x') { - fprintf(stderr, "Pre-initialized values can be only initialized with hexadecimal constants starting 0x\n%s\n", buffer); - exit(1); - } - initval = strtoul(p + 10, &q, 16); - if (*q || !initval) { - fprintf(stderr, "Pre-initialized values can be only in the form name__btset_0xXXXXXXXX where X are hex digits.\nThey cannot be name__btset_0x00000000 though. Use BTFIXUPDEF_XX instead of BTFIXUPDEF_XX_INIT then.\n%s\n", buffer); - exit(1); - } - initvalstr = p + 10; - *p = 0; - } - f = find(buffer[nbase+3], buffer + shift); - if (buffer[nbase+4] == 's') - continue; - switch (buffer[nbase+3]) { - case 'f': - if (initval) { - fprintf(stderr, "Cannot use pre-initialized fixups for calls\n%s\n", buffer); - exit(1); - } - if (!strcmp (sect, "__ksymtab")) { - if (strncmp (buffer + mode+9, "32 ", 10)) { - fprintf(stderr, "BTFIXUP_CALL in EXPORT_SYMBOL results in relocation other than R_SPARC_32\n\%s\n", buffer); - exit(1); - } - } else if (strncmp (buffer + mode+9, "WDISP30 ", 10) && - strncmp (buffer + mode+9, "HI22 ", 10) && - strncmp (buffer + mode+9, "LO10 ", 10)) { - fprintf(stderr, "BTFIXUP_CALL results in relocation other than R_SPARC_WDISP30, R_SPARC_HI22 or R_SPARC_LO10\n%s\n", buffer); - exit(1); - } - break; - case 'b': - if (initval) { - fprintf(stderr, "Cannot use pre-initialized fixups for blackboxes\n%s\n", buffer); - exit(1); - } - if (strncmp (buffer + mode+9, "HI22 ", 10)) { - fprintf(stderr, "BTFIXUP_BLACKBOX results in relocation other than R_SPARC_HI22\n%s\n", buffer); - exit(1); - } - break; - case 's': - if (initval + 0x1000 >= 0x2000) { - fprintf(stderr, "Wrong initializer for SIMM13. Has to be from $fffff000 to $00000fff\n%s\n", buffer); - exit(1); - } - if (strncmp (buffer + mode+9, "13 ", 10)) { - fprintf(stderr, "BTFIXUP_SIMM13 results in relocation other than R_SPARC_13\n%s\n", buffer); - exit(1); - } - break; - case 'a': - if (initval + 0x1000 >= 0x2000 && (initval & 0x3ff)) { - fprintf(stderr, "Wrong initializer for HALF.\n%s\n", buffer); - exit(1); - } - if (strncmp (buffer + mode+9, "13 ", 10)) { - fprintf(stderr, "BTFIXUP_HALF results in relocation other than R_SPARC_13\n%s\n", buffer); - exit(1); - } - break; - case 'h': - if (initval & 0x3ff) { - fprintf(stderr, "Wrong initializer for SETHI. Cannot have set low 10 bits\n%s\n", buffer); - exit(1); - } - if (strncmp (buffer + mode+9, "HI22 ", 10)) { - fprintf(stderr, "BTFIXUP_SETHI results in relocation other than R_SPARC_HI22\n%s\n", buffer); - exit(1); - } - break; - case 'i': - if (initval) { - fprintf(stderr, "Cannot use pre-initialized fixups for INT\n%s\n", buffer); - exit(1); - } - if (strncmp (buffer + mode+9, "HI22 ", 10) && strncmp (buffer + mode+9, "LO10 ", 10)) { - fprintf(stderr, "BTFIXUP_INT results in relocation other than R_SPARC_HI22 and R_SPARC_LO10\n%s\n", buffer); - exit(1); - } - break; - } - if (!f->setinitval) { - f->initval = initval; - if (initvalstr) { - f->initvalstr = strdup(initvalstr); - if (!f->initvalstr) fatal(); - } - f->setinitval = 1; - } else if (f->initval != initval) { - fprintf(stderr, "Btfixup %s previously used with initializer %s which doesn't match with current initializer\n%s\n", - f->name, f->initvalstr ? : "0x00000000", buffer); - exit(1); - } else if (initval && strcmp(f->initvalstr, initvalstr)) { - fprintf(stderr, "Btfixup %s previously used with initializer %s which doesn't match with current initializer.\n" - "Initializers have to match literally as well.\n%s\n", - f->name, f->initvalstr, buffer); - exit(1); - } - offset = strtoul(buffer, &q, 16); - if (q != buffer + mode || (!offset && (mode == 8 ? strncmp (buffer, "00000000 ", 9) : strncmp (buffer, "0000000000000000 ", 17)))) { - fprintf(stderr, "Malformed relocation address in\n%s\n", buffer); - exit(1); - } - for (k = 0, r = f->rel, rr = &f->rel; r; rr = &r->next, r = r->next, k++) - if (r->offset == offset && !strcmp(r->sect, sect)) { - fprintf(stderr, "Ugh. One address has two relocation records\n"); - exit(1); - } - *rr = malloc(sizeof(btfixuprel)); - if (!*rr) fatal(); - (*rr)->offset = offset; - (*rr)->f = NULL; - if (buffer[nbase+3] == 'f') { - lastf = f; - lastfoffset = offset; - lastfrelno = k; - } else if (lastfoffset + 4 == offset) { - (*rr)->f = lastf; - (*rr)->frel = lastfrelno; - } - (*rr)->sect = sect; - (*rr)->next = NULL; - } - printf("! Generated by btfixupprep. Do not edit.\n\n"); - printf("\t.section\t\".data..init\",#alloc,#write\n\t.align\t4\n\n"); - printf("\t.global\t___btfixup_start\n___btfixup_start:\n\n"); - for (i = 0; i < last; i++) { - f = array + i; - printf("\t.global\t___%cs_%s\n", f->type, f->name); - if (f->type == 'f') - printf("___%cs_%s:\n\t.word 0x%08x,0,0,", f->type, f->name, f->type << 24); - else - printf("___%cs_%s:\n\t.word 0x%08x,0,", f->type, f->name, f->type << 24); - for (j = 0, r = f->rel; r != NULL; j++, r = r->next); - if (j) - printf("%d\n\t.word\t", j * 2); - else - printf("0\n"); - for (r = f->rel, j--; r != NULL; j--, r = r->next) { - if (!strcmp (r->sect, ".text")) - printf ("_stext+0x%08lx", r->offset); - else if (!strcmp (r->sect, ".init.text")) - printf ("__init_begin+0x%08lx", r->offset); - else if (!strcmp (r->sect, "__ksymtab")) - printf ("__start___ksymtab+0x%08lx", r->offset); - else if (!strcmp (r->sect, ".fixup")) - printf ("__start___fixup+0x%08lx", r->offset); - else - fatal(); - if (f->type == 'f' || !r->f) - printf (",0"); - else - printf (",___fs_%s+0x%08x", r->f->name, (4 + r->frel*2)*4 + 4); - if (j) printf (","); - else printf ("\n"); - } - printf("\n"); - } - printf("\n\t.global\t___btfixup_end\n___btfixup_end:\n"); - printf("\n\n! Define undefined references\n\n"); - for (i = 0; i < last; i++) { - f = array + i; - if (f->type == 'f') { - printf("\t.global\t___f_%s\n", f->name); - printf("___f_%s:\n", f->name); - } - } - printf("\tretl\n\t nop\n\n"); - for (i = 0; i < last; i++) { - f = array + i; - if (f->type != 'f') { - if (!f->initval) { - printf("\t.global\t___%c_%s\n", f->type, f->name); - printf("___%c_%s = 0\n", f->type, f->name); - } else { - printf("\t.global\t___%c_%s__btset_0x%s\n", f->type, f->name, f->initvalstr); - printf("___%c_%s__btset_0x%s = 0x%08x\n", f->type, f->name, f->initvalstr, f->initval); - } - } - } - printf("\n\n"); - exit(0); -} diff --git a/arch/sparc/configs/sparc64_defconfig b/arch/sparc/configs/sparc64_defconfig index 3c1e8580740..9d8521b8c85 100644 --- a/arch/sparc/configs/sparc64_defconfig +++ b/arch/sparc/configs/sparc64_defconfig @@ -5,7 +5,7 @@ CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y CONFIG_LOG_BUF_SHIFT=18 CONFIG_BLK_DEV_INITRD=y -CONFIG_PERF_COUNTERS=y +CONFIG_PERF_EVENTS=y # CONFIG_COMPAT_BRK is not set CONFIG_SLAB=y CONFIG_PROFILING=y diff --git a/arch/sparc/include/asm/asi.h b/arch/sparc/include/asm/asi.h index b2e3db63a64..cbb93e5141d 100644 --- a/arch/sparc/include/asm/asi.h +++ b/arch/sparc/include/asm/asi.h @@ -112,6 +112,20 @@ #define ASI_M_ACTION 0x4c /* Breakpoint Action Register (GNU/Viking) */ +/* LEON ASI */ +#define ASI_LEON_NOCACHE 0x01 + +#define ASI_LEON_DCACHE_MISS 0x01 + +#define ASI_LEON_CACHEREGS 0x02 +#define ASI_LEON_IFLUSH 0x10 +#define ASI_LEON_DFLUSH 0x11 + +#define ASI_LEON_MMUFLUSH 0x18 +#define ASI_LEON_MMUREGS 0x19 +#define ASI_LEON_BYPASS 0x1c +#define ASI_LEON_FLUSH_PAGE 0x10 + /* V9 Architecture mandary ASIs. */ #define ASI_N 0x04 /* Nucleus */ #define ASI_NL 0x0c /* Nucleus, little endian */ diff --git a/arch/sparc/include/asm/asmmacro.h b/arch/sparc/include/asm/asmmacro.h index a995bf8aba3..02a172fb193 100644 --- a/arch/sparc/include/asm/asmmacro.h +++ b/arch/sparc/include/asm/asmmacro.h @@ -6,17 +6,6 @@ #ifndef _SPARC_ASMMACRO_H #define _SPARC_ASMMACRO_H -#include <asm/btfixup.h> -#include <asm/asi.h> - -#define GET_PROCESSOR4M_ID(reg) \ - rd %tbr, %reg; \ - srl %reg, 12, %reg; \ - and %reg, 3, %reg; - -#define GET_PROCESSOR4D_ID(reg) \ - lda [%g0] ASI_M_VIKING_TMP1, %reg; - /* All trap entry points _must_ begin with this macro or else you * lose. It makes sure the kernel has a proper window so that * c-code can be called. @@ -31,10 +20,4 @@ /* All traps low-level code here must end with this macro. */ #define RESTORE_ALL b ret_trap_entry; clr %l6; -/* sun4 probably wants half word accesses to ASI_SEGMAP, while sun4c+ - likes byte accesses. These are to avoid ifdef mania. */ - -#define lduXa lduba -#define stXa stba - #endif /* !(_SPARC_ASMMACRO_H) */ diff --git a/arch/sparc/include/asm/btfixup.h b/arch/sparc/include/asm/btfixup.h deleted file mode 100644 index 797722cf69f..00000000000 --- a/arch/sparc/include/asm/btfixup.h +++ /dev/null @@ -1,208 +0,0 @@ -/* - * asm/btfixup.h: Macros for boot time linking. - * - * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#ifndef _SPARC_BTFIXUP_H -#define _SPARC_BTFIXUP_H - -#include <linux/init.h> - -#ifndef __ASSEMBLY__ - -#ifdef MODULE -extern unsigned int ___illegal_use_of_BTFIXUP_SIMM13_in_module(void); -extern unsigned int ___illegal_use_of_BTFIXUP_SETHI_in_module(void); -extern unsigned int ___illegal_use_of_BTFIXUP_HALF_in_module(void); -extern unsigned int ___illegal_use_of_BTFIXUP_INT_in_module(void); - -#define BTFIXUP_SIMM13(__name) ___illegal_use_of_BTFIXUP_SIMM13_in_module() -#define BTFIXUP_HALF(__name) ___illegal_use_of_BTFIXUP_HALF_in_module() -#define BTFIXUP_SETHI(__name) ___illegal_use_of_BTFIXUP_SETHI_in_module() -#define BTFIXUP_INT(__name) ___illegal_use_of_BTFIXUP_INT_in_module() -#define BTFIXUP_BLACKBOX(__name) ___illegal_use_of_BTFIXUP_BLACKBOX_in_module - -#else - -#define BTFIXUP_SIMM13(__name) ___sf_##__name() -#define BTFIXUP_HALF(__name) ___af_##__name() -#define BTFIXUP_SETHI(__name) ___hf_##__name() -#define BTFIXUP_INT(__name) ((unsigned int)&___i_##__name) -/* This must be written in assembly and present in a sethi */ -#define BTFIXUP_BLACKBOX(__name) ___b_##__name -#endif /* MODULE */ - -/* Fixup call xx */ - -#define BTFIXUPDEF_CALL(__type, __name, __args...) \ - extern __type ___f_##__name(__args); \ - extern unsigned ___fs_##__name[3]; -#define BTFIXUPDEF_CALL_CONST(__type, __name, __args...) \ - extern __type ___f_##__name(__args) __attribute_const__; \ - extern unsigned ___fs_##__name[3]; -#define BTFIXUP_CALL(__name) ___f_##__name - -#define BTFIXUPDEF_BLACKBOX(__name) \ - extern unsigned ___bs_##__name[2]; - -/* Put bottom 13bits into some register variable */ - -#define BTFIXUPDEF_SIMM13(__name) \ - static inline unsigned int ___sf_##__name(void) __attribute_const__; \ - extern unsigned ___ss_##__name[2]; \ - static inline unsigned int ___sf_##__name(void) { \ - unsigned int ret; \ - __asm__ ("or %%g0, ___s_" #__name ", %0" : "=r"(ret)); \ - return ret; \ - } -#define BTFIXUPDEF_SIMM13_INIT(__name,__val) \ - static inline unsigned int ___sf_##__name(void) __attribute_const__; \ - extern unsigned ___ss_##__name[2]; \ - static inline unsigned int ___sf_##__name(void) { \ - unsigned int ret; \ - __asm__ ("or %%g0, ___s_" #__name "__btset_" #__val ", %0" : "=r"(ret));\ - return ret; \ - } - -/* Put either bottom 13 bits, or upper 22 bits into some register variable - * (depending on the value, this will lead into sethi FIX, reg; or - * mov FIX, reg; ) - */ - -#define BTFIXUPDEF_HALF(__name) \ - static inline unsigned int ___af_##__name(void) __attribute_const__; \ - extern unsigned ___as_##__name[2]; \ - static inline unsigned int ___af_##__name(void) { \ - unsigned int ret; \ - __asm__ ("or %%g0, ___a_" #__name ", %0" : "=r"(ret)); \ - return ret; \ - } -#define BTFIXUPDEF_HALF_INIT(__name,__val) \ - static inline unsigned int ___af_##__name(void) __attribute_const__; \ - extern unsigned ___as_##__name[2]; \ - static inline unsigned int ___af_##__name(void) { \ - unsigned int ret; \ - __asm__ ("or %%g0, ___a_" #__name "__btset_" #__val ", %0" : "=r"(ret));\ - return ret; \ - } - -/* Put upper 22 bits into some register variable */ - -#define BTFIXUPDEF_SETHI(__name) \ - static inline unsigned int ___hf_##__name(void) __attribute_const__; \ - extern unsigned ___hs_##__name[2]; \ - static inline unsigned int ___hf_##__name(void) { \ - unsigned int ret; \ - __asm__ ("sethi %%hi(___h_" #__name "), %0" : "=r"(ret)); \ - return ret; \ - } -#define BTFIXUPDEF_SETHI_INIT(__name,__val) \ - static inline unsigned int ___hf_##__name(void) __attribute_const__; \ - extern unsigned ___hs_##__name[2]; \ - static inline unsigned int ___hf_##__name(void) { \ - unsigned int ret; \ - __asm__ ("sethi %%hi(___h_" #__name "__btset_" #__val "), %0" : \ - "=r"(ret)); \ - return ret; \ - } - -/* Put a full 32bit integer into some register variable */ - -#define BTFIXUPDEF_INT(__name) \ - extern unsigned char ___i_##__name; \ - extern unsigned ___is_##__name[2]; - -#define BTFIXUPCALL_NORM 0x00000000 /* Always call */ -#define BTFIXUPCALL_NOP 0x01000000 /* Possibly optimize to nop */ -#define BTFIXUPCALL_RETINT(i) (0x90102000|((i) & 0x1fff)) /* Possibly optimize to mov i, %o0 */ -#define BTFIXUPCALL_ORINT(i) (0x90122000|((i) & 0x1fff)) /* Possibly optimize to or %o0, i, %o0 */ -#define BTFIXUPCALL_RETO0 0x01000000 /* Return first parameter, actually a nop */ -#define BTFIXUPCALL_ANDNINT(i) (0x902a2000|((i) & 0x1fff)) /* Possibly optimize to andn %o0, i, %o0 */ -#define BTFIXUPCALL_SWAPO0O1 0xd27a0000 /* Possibly optimize to swap [%o0],%o1 */ -#define BTFIXUPCALL_SWAPO0G0 0xc07a0000 /* Possibly optimize to swap [%o0],%g0 */ -#define BTFIXUPCALL_SWAPG1G2 0xc4784000 /* Possibly optimize to swap [%g1],%g2 */ -#define BTFIXUPCALL_STG0O0 0xc0220000 /* Possibly optimize to st %g0,[%o0] */ -#define BTFIXUPCALL_STO1O0 0xd2220000 /* Possibly optimize to st %o1,[%o0] */ - -#define BTFIXUPSET_CALL(__name, __addr, __insn) \ - do { \ - ___fs_##__name[0] |= 1; \ - ___fs_##__name[1] = (unsigned long)__addr; \ - ___fs_##__name[2] = __insn; \ - } while (0) - -#define BTFIXUPSET_BLACKBOX(__name, __func) \ - do { \ - ___bs_##__name[0] |= 1; \ - ___bs_##__name[1] = (unsigned long)__func; \ - } while (0) - -#define BTFIXUPCOPY_CALL(__name, __from) \ - do { \ - ___fs_##__name[0] |= 1; \ - ___fs_##__name[1] = ___fs_##__from[1]; \ - ___fs_##__name[2] = ___fs_##__from[2]; \ - } while (0) - -#define BTFIXUPSET_SIMM13(__name, __val) \ - do { \ - ___ss_##__name[0] |= 1; \ - ___ss_##__name[1] = (unsigned)__val; \ - } while (0) - -#define BTFIXUPCOPY_SIMM13(__name, __from) \ - do { \ - ___ss_##__name[0] |= 1; \ - ___ss_##__name[1] = ___ss_##__from[1]; \ - } while (0) - -#define BTFIXUPSET_HALF(__name, __val) \ - do { \ - ___as_##__name[0] |= 1; \ - ___as_##__name[1] = (unsigned)__val; \ - } while (0) - -#define BTFIXUPCOPY_HALF(__name, __from) \ - do { \ - ___as_##__name[0] |= 1; \ - ___as_##__name[1] = ___as_##__from[1]; \ - } while (0) - -#define BTFIXUPSET_SETHI(__name, __val) \ - do { \ - ___hs_##__name[0] |= 1; \ - ___hs_##__name[1] = (unsigned)__val; \ - } while (0) - -#define BTFIXUPCOPY_SETHI(__name, __from) \ - do { \ - ___hs_##__name[0] |= 1; \ - ___hs_##__name[1] = ___hs_##__from[1]; \ - } while (0) - -#define BTFIXUPSET_INT(__name, __val) \ - do { \ - ___is_##__name[0] |= 1; \ - ___is_##__name[1] = (unsigned)__val; \ - } while (0) - -#define BTFIXUPCOPY_INT(__name, __from) \ - do { \ - ___is_##__name[0] |= 1; \ - ___is_##__name[1] = ___is_##__from[1]; \ - } while (0) - -#define BTFIXUPVAL_CALL(__name) \ - ((unsigned long)___fs_##__name[1]) - -extern void btfixup(void); - -#else /* __ASSEMBLY__ */ - -#define BTFIXUP_SETHI(__name) %hi(___h_ ## __name) -#define BTFIXUP_SETHI_INIT(__name,__val) %hi(___h_ ## __name ## __btset_ ## __val) - -#endif /* __ASSEMBLY__ */ - -#endif /* !(_SPARC_BTFIXUP_H) */ diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h index 69358b590c9..5bb6991b485 100644 --- a/arch/sparc/include/asm/cache.h +++ b/arch/sparc/include/asm/cache.h @@ -22,118 +22,4 @@ #define __read_mostly __attribute__((__section__(".data..read_mostly"))) -#ifdef CONFIG_SPARC32 -#include <asm/asi.h> - -/* Direct access to the instruction cache is provided through and - * alternate address space. The IDC bit must be off in the ICCR on - * HyperSparcs for these accesses to work. The code below does not do - * any checking, the caller must do so. These routines are for - * diagnostics only, but could end up being useful. Use with care. - * Also, you are asking for trouble if you execute these in one of the - * three instructions following a %asr/%psr access or modification. - */ - -/* First, cache-tag access. */ -static inline unsigned int get_icache_tag(int setnum, int tagnum) -{ - unsigned int vaddr, retval; - - vaddr = ((setnum&1) << 12) | ((tagnum&0x7f) << 5); - __asm__ __volatile__("lda [%1] %2, %0\n\t" : - "=r" (retval) : - "r" (vaddr), "i" (ASI_M_TXTC_TAG)); - return retval; -} - -static inline void put_icache_tag(int setnum, int tagnum, unsigned int entry) -{ - unsigned int vaddr; - - vaddr = ((setnum&1) << 12) | ((tagnum&0x7f) << 5); - __asm__ __volatile__("sta %0, [%1] %2\n\t" : : - "r" (entry), "r" (vaddr), "i" (ASI_M_TXTC_TAG) : - "memory"); -} - -/* Second cache-data access. The data is returned two-32bit quantities - * at a time. - */ -static inline void get_icache_data(int setnum, int tagnum, int subblock, - unsigned int *data) -{ - unsigned int value1, value2, vaddr; - - vaddr = ((setnum&0x1) << 12) | ((tagnum&0x7f) << 5) | - ((subblock&0x3) << 3); - __asm__ __volatile__("ldda [%2] %3, %%g2\n\t" - "or %%g0, %%g2, %0\n\t" - "or %%g0, %%g3, %1\n\t" : - "=r" (value1), "=r" (value2) : - "r" (vaddr), "i" (ASI_M_TXTC_DATA) : - "g2", "g3"); - data[0] = value1; data[1] = value2; -} - -static inline void put_icache_data(int setnum, int tagnum, int subblock, - unsigned int *data) -{ - unsigned int value1, value2, vaddr; - - vaddr = ((setnum&0x1) << 12) | ((tagnum&0x7f) << 5) | - ((subblock&0x3) << 3); - value1 = data[0]; value2 = data[1]; - __asm__ __volatile__("or %%g0, %0, %%g2\n\t" - "or %%g0, %1, %%g3\n\t" - "stda %%g2, [%2] %3\n\t" : : - "r" (value1), "r" (value2), - "r" (vaddr), "i" (ASI_M_TXTC_DATA) : - "g2", "g3", "memory" /* no joke */); -} - -/* Different types of flushes with the ICACHE. Some of the flushes - * affect both the ICACHE and the external cache. Others only clear - * the ICACHE entries on the cpu itself. V8's (most) allow - * granularity of flushes on the packet (element in line), whole line, - * and entire cache (ie. all lines) level. The ICACHE only flushes are - * ROSS HyperSparc specific and are in ross.h - */ - -/* Flushes which clear out both the on-chip and external caches */ -static inline void flush_ei_page(unsigned int addr) -{ - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : - "r" (addr), "i" (ASI_M_FLUSH_PAGE) : - "memory"); -} - -static inline void flush_ei_seg(unsigned int addr) -{ - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : - "r" (addr), "i" (ASI_M_FLUSH_SEG) : - "memory"); -} - -static inline void flush_ei_region(unsigned int addr) -{ - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : - "r" (addr), "i" (ASI_M_FLUSH_REGION) : - "memory"); -} - -static inline void flush_ei_ctx(unsigned int addr) -{ - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : - "r" (addr), "i" (ASI_M_FLUSH_CTX) : - "memory"); -} - -static inline void flush_ei_user(unsigned int addr) -{ - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : - "r" (addr), "i" (ASI_M_FLUSH_USER) : - "memory"); -} -#endif /* CONFIG_SPARC32 */ - #endif /* !(_SPARC_CACHE_H) */ diff --git a/arch/sparc/include/asm/cacheflush.h b/arch/sparc/include/asm/cacheflush.h index 049168087b1..f6c4839b838 100644 --- a/arch/sparc/include/asm/cacheflush.h +++ b/arch/sparc/include/asm/cacheflush.h @@ -1,5 +1,9 @@ #ifndef ___ASM_SPARC_CACHEFLUSH_H #define ___ASM_SPARC_CACHEFLUSH_H + +/* flush addr - to allow use of self-modifying code */ +#define flushi(addr) __asm__ __volatile__ ("flush %0" : : "r" (addr) : "memory") + #if defined(__sparc__) && defined(__arch64__) #include <asm/cacheflush_64.h> #else diff --git a/arch/sparc/include/asm/cacheflush_32.h b/arch/sparc/include/asm/cacheflush_32.h index 68431b47a22..bb014c24f31 100644 --- a/arch/sparc/include/asm/cacheflush_32.h +++ b/arch/sparc/include/asm/cacheflush_32.h @@ -1,56 +1,18 @@ #ifndef _SPARC_CACHEFLUSH_H #define _SPARC_CACHEFLUSH_H -#include <linux/mm.h> /* Common for other includes */ -// #include <linux/kernel.h> from pgalloc.h -// #include <linux/sched.h> from pgalloc.h +#include <asm/cachetlb_32.h> -// #include <asm/page.h> -#include <asm/btfixup.h> - -/* - * Fine grained cache flushing. - */ -#ifdef CONFIG_SMP - -BTFIXUPDEF_CALL(void, local_flush_cache_all, void) -BTFIXUPDEF_CALL(void, local_flush_cache_mm, struct mm_struct *) -BTFIXUPDEF_CALL(void, local_flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long) -BTFIXUPDEF_CALL(void, local_flush_cache_page, struct vm_area_struct *, unsigned long) - -#define local_flush_cache_all() BTFIXUP_CALL(local_flush_cache_all)() -#define local_flush_cache_mm(mm) BTFIXUP_CALL(local_flush_cache_mm)(mm) -#define local_flush_cache_range(vma,start,end) BTFIXUP_CALL(local_flush_cache_range)(vma,start,end) -#define local_flush_cache_page(vma,addr) BTFIXUP_CALL(local_flush_cache_page)(vma,addr) - -BTFIXUPDEF_CALL(void, local_flush_page_to_ram, unsigned long) -BTFIXUPDEF_CALL(void, local_flush_sig_insns, struct mm_struct *, unsigned long) - -#define local_flush_page_to_ram(addr) BTFIXUP_CALL(local_flush_page_to_ram)(addr) -#define local_flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(local_flush_sig_insns)(mm,insn_addr) - -extern void smp_flush_cache_all(void); -extern void smp_flush_cache_mm(struct mm_struct *mm); -extern void smp_flush_cache_range(struct vm_area_struct *vma, - unsigned long start, - unsigned long end); -extern void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page); - -extern void smp_flush_page_to_ram(unsigned long page); -extern void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr); - -#endif /* CONFIG_SMP */ - -BTFIXUPDEF_CALL(void, flush_cache_all, void) -BTFIXUPDEF_CALL(void, flush_cache_mm, struct mm_struct *) -BTFIXUPDEF_CALL(void, flush_cache_range, struct vm_area_struct *, unsigned long, unsigned long) -BTFIXUPDEF_CALL(void, flush_cache_page, struct vm_area_struct *, unsigned long) - -#define flush_cache_all() BTFIXUP_CALL(flush_cache_all)() -#define flush_cache_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm) -#define flush_cache_dup_mm(mm) BTFIXUP_CALL(flush_cache_mm)(mm) -#define flush_cache_range(vma,start,end) BTFIXUP_CALL(flush_cache_range)(vma,start,end) -#define flush_cache_page(vma,addr,pfn) BTFIXUP_CALL(flush_cache_page)(vma,addr) +#define flush_cache_all() \ + sparc32_cachetlb_ops->cache_all() +#define flush_cache_mm(mm) \ + sparc32_cachetlb_ops->cache_mm(mm) +#define flush_cache_dup_mm(mm) \ + sparc32_cachetlb_ops->cache_mm(mm) +#define flush_cache_range(vma,start,end) \ + sparc32_cachetlb_ops->cache_range(vma, start, end) +#define flush_cache_page(vma,addr,pfn) \ + sparc32_cachetlb_ops->cache_page(vma, addr) #define flush_icache_range(start, end) do { } while (0) #define flush_icache_page(vma, pg) do { } while (0) @@ -67,11 +29,12 @@ BTFIXUPDEF_CALL(void, flush_cache_page, struct vm_area_struct *, unsigned long) memcpy(dst, src, len); \ } while (0) -BTFIXUPDEF_CALL(void, __flush_page_to_ram, unsigned long) -BTFIXUPDEF_CALL(void, flush_sig_insns, struct mm_struct *, unsigned long) - -#define __flush_page_to_ram(addr) BTFIXUP_CALL(__flush_page_to_ram)(addr) -#define flush_sig_insns(mm,insn_addr) BTFIXUP_CALL(flush_sig_insns)(mm,insn_addr) +#define __flush_page_to_ram(addr) \ + sparc32_cachetlb_ops->page_to_ram(addr) +#define flush_sig_insns(mm,insn_addr) \ + sparc32_cachetlb_ops->sig_insns(mm, insn_addr) +#define flush_page_for_dma(addr) \ + sparc32_cachetlb_ops->page_for_dma(addr) extern void sparc_flush_page_to_ram(struct page *page); diff --git a/arch/sparc/include/asm/cacheflush_64.h b/arch/sparc/include/asm/cacheflush_64.h index 2efea2ff88b..301736d9e7a 100644 --- a/arch/sparc/include/asm/cacheflush_64.h +++ b/arch/sparc/include/asm/cacheflush_64.h @@ -8,9 +8,6 @@ #include <linux/mm.h> /* Cache flush operations. */ - - -#define flushi(addr) __asm__ __volatile__ ("flush %0" : : "r" (addr) : "memory") #define flushw_all() __asm__ __volatile__("flushw") extern void __flushw_user(void); diff --git a/arch/sparc/include/asm/cachetlb_32.h b/arch/sparc/include/asm/cachetlb_32.h new file mode 100644 index 00000000000..efb19889a08 --- /dev/null +++ b/arch/sparc/include/asm/cachetlb_32.h @@ -0,0 +1,29 @@ +#ifndef _SPARC_CACHETLB_H +#define _SPARC_CACHETLB_H + +struct mm_struct; +struct vm_area_struct; + +struct sparc32_cachetlb_ops { + void (*cache_all)(void); + void (*cache_mm)(struct mm_struct *); + void (*cache_range)(struct vm_area_struct *, unsigned long, + unsigned long); + void (*cache_page)(struct vm_area_struct *, unsigned long); + + void (*tlb_all)(void); + void (*tlb_mm)(struct mm_struct *); + void (*tlb_range)(struct vm_area_struct *, unsigned long, + unsigned long); + void (*tlb_page)(struct vm_area_struct *, unsigned long); + + void (*page_to_ram)(unsigned long); + void (*sig_insns)(struct mm_struct *, unsigned long); + void (*page_for_dma)(unsigned long); +}; +extern const struct sparc32_cachetlb_ops *sparc32_cachetlb_ops; +#ifdef CONFIG_SMP +extern const struct sparc32_cachetlb_ops *local_ops; +#endif + +#endif /* SPARC_CACHETLB_H */ diff --git a/arch/sparc/include/asm/cmpxchg_32.h b/arch/sparc/include/asm/cmpxchg_32.h index c786b0a92b5..1fae1a02e3c 100644 --- a/arch/sparc/include/asm/cmpxchg_32.h +++ b/arch/sparc/include/asm/cmpxchg_32.h @@ -11,40 +11,13 @@ #ifndef __ARCH_SPARC_CMPXCHG__ #define __ARCH_SPARC_CMPXCHG__ -#include <asm/btfixup.h> - -/* This has special calling conventions */ -#ifndef CONFIG_SMP -BTFIXUPDEF_CALL(void, ___xchg32, void) -#endif - static inline unsigned long xchg_u32(__volatile__ unsigned long *m, unsigned long val) { -#ifdef CONFIG_SMP __asm__ __volatile__("swap [%2], %0" : "=&r" (val) : "0" (val), "r" (m) : "memory"); return val; -#else - register unsigned long *ptr asm("g1"); - register unsigned long ret asm("g2"); - - ptr = (unsigned long *) m; - ret = val; - - /* Note: this is magic and the nop there is - really needed. */ - __asm__ __volatile__( - "mov %%o7, %%g4\n\t" - "call ___f____xchg32\n\t" - " nop\n\t" - : "=&r" (ret) - : "0" (ret), "r" (ptr) - : "g3", "g4", "g7", "memory", "cc"); - - return ret; -#endif } extern void __xchg_called_with_bad_pointer(void); diff --git a/arch/sparc/include/asm/contregs.h b/arch/sparc/include/asm/contregs.h index 48fa8a4ef35..b8abdfcf555 100644 --- a/arch/sparc/include/asm/contregs.h +++ b/arch/sparc/include/asm/contregs.h @@ -7,28 +7,6 @@ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) */ -/* 3=sun3 - 4=sun4 (as in sun4 sysmaint student book) - c=sun4c (according to davem) */ - -#define AC_IDPROM 0x00000000 /* 34 ID PROM, R/O, byte, 32 bytes */ -#define AC_PAGEMAP 0x10000000 /* 3 Pagemap R/W, long */ -#define AC_SEGMAP 0x20000000 /* 3 Segment map, byte */ -#define AC_CONTEXT 0x30000000 /* 34c current mmu-context */ -#define AC_SENABLE 0x40000000 /* 34c system dvma/cache/reset enable reg*/ -#define AC_UDVMA_ENB 0x50000000 /* 34 Not used on Sun boards, byte */ -#define AC_BUS_ERROR 0x60000000 /* 34 Not cleared on read, byte. */ -#define AC_SYNC_ERR 0x60000000 /* c fault type */ -#define AC_SYNC_VA 0x60000004 /* c fault virtual address */ -#define AC_ASYNC_ERR 0x60000008 /* c asynchronous fault type */ -#define AC_ASYNC_VA 0x6000000c /* c async fault virtual address */ -#define AC_LEDS 0x70000000 /* 34 Zero turns on LEDs, byte */ -#define AC_CACHETAGS 0x80000000 /* 34c direct access to the VAC tags */ -#define AC_CACHEDDATA 0x90000000 /* 3 c direct access to the VAC data */ -#define AC_UDVMA_MAP 0xD0000000 /* 4 Not used on Sun boards, byte */ -#define AC_VME_VECTOR 0xE0000000 /* 4 For non-Autovector VME, byte */ -#define AC_BOOT_SCC 0xF0000000 /* 34 bypass to access Zilog 8530. byte.*/ - /* s=Swift, h=Ross_HyperSPARC, v=TI_Viking, t=Tsunami, r=Ross_Cypress */ #define AC_M_PCR 0x0000 /* shv Processor Control Reg */ #define AC_M_CTPR 0x0100 /* shv Context Table Pointer Reg */ diff --git a/arch/sparc/include/asm/cpu_type.h b/arch/sparc/include/asm/cpu_type.h index 4ca184d95d8..84d7d83b808 100644 --- a/arch/sparc/include/asm/cpu_type.h +++ b/arch/sparc/include/asm/cpu_type.h @@ -5,30 +5,24 @@ * Sparc (general) CPU types */ enum sparc_cpu { - sun4 = 0x00, - sun4c = 0x01, - sun4m = 0x02, - sun4d = 0x03, - sun4e = 0x04, - sun4u = 0x05, /* V8 ploos ploos */ - sun_unknown = 0x06, - ap1000 = 0x07, /* almost a sun4m */ - sparc_leon = 0x08, /* Leon SoC */ + sun4m = 0x00, + sun4d = 0x01, + sun4e = 0x02, + sun4u = 0x03, /* V8 ploos ploos */ + sun_unknown = 0x04, + ap1000 = 0x05, /* almost a sun4m */ + sparc_leon = 0x06, /* Leon SoC */ }; #ifdef CONFIG_SPARC32 extern enum sparc_cpu sparc_cpu_model; -#define ARCH_SUN4C (sparc_cpu_model==sun4c) - #define SUN4M_NCPUS 4 /* Architectural limit of sun4m. */ #else #define sparc_cpu_model sun4u -/* This cannot ever be a sun4c :) That's just history. */ -#define ARCH_SUN4C 0 #endif #endif /* __ASM_CPU_TYPE_H */ diff --git a/arch/sparc/include/asm/cpudata_32.h b/arch/sparc/include/asm/cpudata_32.h index a4c5a938b93..0300d94c25b 100644 --- a/arch/sparc/include/asm/cpudata_32.h +++ b/arch/sparc/include/asm/cpudata_32.h @@ -14,7 +14,6 @@ typedef struct { unsigned long udelay_val; unsigned long clock_tick; - unsigned int multiplier; unsigned int counter; #ifdef CONFIG_SMP unsigned int irq_resched_count; diff --git a/arch/sparc/include/asm/cypress.h b/arch/sparc/include/asm/cypress.h deleted file mode 100644 index 95e9772ea39..00000000000 --- a/arch/sparc/include/asm/cypress.h +++ /dev/null @@ -1,79 +0,0 @@ -/* - * cypress.h: Cypress module specific definitions and defines. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef _SPARC_CYPRESS_H -#define _SPARC_CYPRESS_H - -/* Cypress chips have %psr 'impl' of '0001' and 'vers' of '0001'. */ - -/* The MMU control register fields on the Sparc Cypress 604/605 MMU's. - * - * --------------------------------------------------------------- - * |implvers| MCA | MCM |MV| MID |BM| C|RSV|MR|CM|CL|CE|RSV|NF|ME| - * --------------------------------------------------------------- - * 31 24 23-22 21-20 19 18-15 14 13 12 11 10 9 8 7-2 1 0 - * - * MCA: MultiChip Access -- Used for configuration of multiple - * CY7C604/605 cache units. - * MCM: MultiChip Mask -- Again, for multiple cache unit config. - * MV: MultiChip Valid -- Indicates MCM and MCA have valid settings. - * MID: ModuleID -- Unique processor ID for MBus transactions. (605 only) - * BM: Boot Mode -- 0 = not in boot mode, 1 = in boot mode - * C: Cacheable -- Indicates whether accesses are cacheable while - * the MMU is off. 0=no 1=yes - * MR: MemoryReflection -- Indicates whether the bus attached to the - * MBus supports memory reflection. 0=no 1=yes (605 only) - * CM: CacheMode -- Indicates whether the cache is operating in write - * through or copy-back mode. 0=write-through 1=copy-back - * CL: CacheLock -- Indicates if the entire cache is locked or not. - * 0=not-locked 1=locked (604 only) - * CE: CacheEnable -- Is the virtual cache on? 0=no 1=yes - * NF: NoFault -- Do faults generate traps? 0=yes 1=no - * ME: MmuEnable -- Is the MMU doing translations? 0=no 1=yes - */ - -#define CYPRESS_MCA 0x00c00000 -#define CYPRESS_MCM 0x00300000 -#define CYPRESS_MVALID 0x00080000 -#define CYPRESS_MIDMASK 0x00078000 /* Only on 605 */ -#define CYPRESS_BMODE 0x00004000 -#define CYPRESS_ACENABLE 0x00002000 -#define CYPRESS_MRFLCT 0x00000800 /* Only on 605 */ -#define CYPRESS_CMODE 0x00000400 -#define CYPRESS_CLOCK 0x00000200 /* Only on 604 */ -#define CYPRESS_CENABLE 0x00000100 -#define CYPRESS_NFAULT 0x00000002 -#define CYPRESS_MENABLE 0x00000001 - -static inline void cypress_flush_page(unsigned long page) -{ - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : - "r" (page), "i" (ASI_M_FLUSH_PAGE)); -} - -static inline void cypress_flush_segment(unsigned long addr) -{ - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : - "r" (addr), "i" (ASI_M_FLUSH_SEG)); -} - -static inline void cypress_flush_region(unsigned long addr) -{ - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : - "r" (addr), "i" (ASI_M_FLUSH_REGION)); -} - -static inline void cypress_flush_context(void) -{ - __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t" : : - "i" (ASI_M_FLUSH_CTX)); -} - -/* XXX Displacement flushes for buggy chips and initial testing - * XXX go here. - */ - -#endif /* !(_SPARC_CYPRESS_H) */ diff --git a/arch/sparc/include/asm/dma.h b/arch/sparc/include/asm/dma.h index b554927bbaf..3d434ef5eae 100644 --- a/arch/sparc/include/asm/dma.h +++ b/arch/sparc/include/asm/dma.h @@ -92,27 +92,31 @@ extern int isa_dma_bridge_buggy; #ifdef CONFIG_SPARC32 /* Routines for data transfer buffers. */ -BTFIXUPDEF_CALL(char *, mmu_lockarea, char *, unsigned long) -BTFIXUPDEF_CALL(void, mmu_unlockarea, char *, unsigned long) - -#define mmu_lockarea(vaddr,len) BTFIXUP_CALL(mmu_lockarea)(vaddr,len) -#define mmu_unlockarea(vaddr,len) BTFIXUP_CALL(mmu_unlockarea)(vaddr,len) - -struct page; struct device; struct scatterlist; -/* These are implementations for sbus_map_sg/sbus_unmap_sg... collapse later */ -BTFIXUPDEF_CALL(__u32, mmu_get_scsi_one, struct device *, char *, unsigned long) -BTFIXUPDEF_CALL(void, mmu_get_scsi_sgl, struct device *, struct scatterlist *, int) -BTFIXUPDEF_CALL(void, mmu_release_scsi_one, struct device *, __u32, unsigned long) -BTFIXUPDEF_CALL(void, mmu_release_scsi_sgl, struct device *, struct scatterlist *, int) +struct sparc32_dma_ops { + __u32 (*get_scsi_one)(struct device *, char *, unsigned long); + void (*get_scsi_sgl)(struct device *, struct scatterlist *, int); + void (*release_scsi_one)(struct device *, __u32, unsigned long); + void (*release_scsi_sgl)(struct device *, struct scatterlist *,int); +#ifdef CONFIG_SBUS + int (*map_dma_area)(struct device *, dma_addr_t *, unsigned long, unsigned long, int); + void (*unmap_dma_area)(struct device *, unsigned long, int); +#endif +}; +extern const struct sparc32_dma_ops *sparc32_dma_ops; -#define mmu_get_scsi_one(dev,vaddr,len) BTFIXUP_CALL(mmu_get_scsi_one)(dev,vaddr,len) -#define mmu_get_scsi_sgl(dev,sg,sz) BTFIXUP_CALL(mmu_get_scsi_sgl)(dev,sg,sz) -#define mmu_release_scsi_one(dev,vaddr,len) BTFIXUP_CALL(mmu_release_scsi_one)(dev,vaddr,len) -#define mmu_release_scsi_sgl(dev,sg,sz) BTFIXUP_CALL(mmu_release_scsi_sgl)(dev,sg,sz) +#define mmu_get_scsi_one(dev,vaddr,len) \ + sparc32_dma_ops->get_scsi_one(dev, vaddr, len) +#define mmu_get_scsi_sgl(dev,sg,sz) \ + sparc32_dma_ops->get_scsi_sgl(dev, sg, sz) +#define mmu_release_scsi_one(dev,vaddr,len) \ + sparc32_dma_ops->release_scsi_one(dev, vaddr,len) +#define mmu_release_scsi_sgl(dev,sg,sz) \ + sparc32_dma_ops->release_scsi_sgl(dev, sg, sz) +#ifdef CONFIG_SBUS /* * mmu_map/unmap are provided by iommu/iounit; Invalid to call on IIep. * @@ -123,17 +127,17 @@ BTFIXUPDEF_CALL(void, mmu_release_scsi_sgl, struct device *, struct scatterlist * Second mapping is for device visible address, or "bus" address. * The bus address is returned at '*pba'. * - * These functions seem distinct, but are hard to split. On sun4c, - * at least for now, 'a' is equal to bus address, and retured in *pba. + * These functions seem distinct, but are hard to split. * On sun4m, page attributes depend on the CPU type, so we have to * know if we are mapping RAM or I/O, so it has to be an additional argument * to a separate mapping function for CPU visible mappings. */ -BTFIXUPDEF_CALL(int, mmu_map_dma_area, struct device *, dma_addr_t *, unsigned long, unsigned long, int len) -BTFIXUPDEF_CALL(void, mmu_unmap_dma_area, struct device *, unsigned long busa, int len) +#define sbus_map_dma_area(dev,pba,va,a,len) \ + sparc32_dma_ops->map_dma_area(dev, pba, va, a, len) +#define sbus_unmap_dma_area(dev,ba,len) \ + sparc32_dma_ops->unmap_dma_area(dev, ba, len) +#endif /* CONFIG_SBUS */ -#define mmu_map_dma_area(dev,pba,va,a,len) BTFIXUP_CALL(mmu_map_dma_area)(dev,pba,va,a,len) -#define mmu_unmap_dma_area(dev,ba,len) BTFIXUP_CALL(mmu_unmap_dma_area)(dev,ba,len) #endif #endif /* !(_ASM_SPARC_DMA_H) */ diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h index 4269ca6ad18..2d4d755cba9 100644 --- a/arch/sparc/include/asm/elf_32.h +++ b/arch/sparc/include/asm/elf_32.h @@ -118,16 +118,9 @@ typedef struct { instruction set this cpu supports. This can NOT be done in userspace on Sparc. */ -/* Sun4c has none of the capabilities, most sun4m's have them all. - * XXX This is gross, set some global variable at boot time. -DaveM - */ -#define ELF_HWCAP ((ARCH_SUN4C) ? 0 : \ - (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \ - HWCAP_SPARC_SWAP | \ - ((srmmu_modtype != Cypress && \ - srmmu_modtype != Cypress_vE && \ - srmmu_modtype != Cypress_vD) ? \ - HWCAP_SPARC_MULDIV : 0))) +/* Most sun4m's have them all. */ +#define ELF_HWCAP (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \ + HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV) /* This yields a string that ld.so will use to load implementation specific libraries for optimization. This is more specific in diff --git a/arch/sparc/include/asm/floppy_32.h b/arch/sparc/include/asm/floppy_32.h index 698d9559fea..fb3f16954c6 100644 --- a/arch/sparc/include/asm/floppy_32.h +++ b/arch/sparc/include/asm/floppy_32.h @@ -12,7 +12,6 @@ #include <asm/page.h> #include <asm/pgtable.h> #include <asm/idprom.h> -#include <asm/machines.h> #include <asm/oplib.h> #include <asm/auxio.h> #include <asm/irq.h> @@ -103,25 +102,13 @@ static struct sun_floppy_ops sun_fdops; /* Routines unique to each controller type on a Sun. */ static void sun_set_dor(unsigned char value, int fdc_82077) { - if (sparc_cpu_model == sun4c) { - unsigned int bits = 0; - if (value & 0x10) - bits |= AUXIO_FLPY_DSEL; - if ((value & 0x80) == 0) - bits |= AUXIO_FLPY_EJCT; - set_auxio(bits, (~bits) & (AUXIO_FLPY_DSEL|AUXIO_FLPY_EJCT)); - } - if (fdc_82077) { + if (fdc_82077) sun_fdc->dor_82077 = value; - } } static unsigned char sun_read_dir(void) { - if (sparc_cpu_model == sun4c) - return (get_auxio() & AUXIO_FLPY_DCHG) ? 0x80 : 0; - else - return sun_fdc->dir_82077; + return sun_fdc->dir_82077; } static unsigned char sun_82072_fd_inb(int port) @@ -242,10 +229,7 @@ static inline void virtual_dma_init(void) static inline void sun_fd_disable_dma(void) { doing_pdma = 0; - if (pdma_base) { - mmu_unlockarea(pdma_base, pdma_areasize); - pdma_base = NULL; - } + pdma_base = NULL; } static inline void sun_fd_set_dma_mode(int mode) @@ -275,7 +259,6 @@ static inline void sun_fd_set_dma_count(int length) static inline void sun_fd_enable_dma(void) { - pdma_vaddr = mmu_lockarea(pdma_vaddr, pdma_size); pdma_base = pdma_vaddr; pdma_areasize = pdma_size; } @@ -301,38 +284,36 @@ static int sun_floppy_init(void) { struct platform_device *op; struct device_node *dp; + struct resource r; char state[128]; - phandle tnode, fd_node; + phandle fd_node; + phandle tnode; int num_regs; - struct resource r; use_virtual_dma = 1; /* Forget it if we aren't on a machine that could possibly * ever have a floppy drive. */ - if((sparc_cpu_model != sun4c && sparc_cpu_model != sun4m) || - ((idprom->id_machtype == (SM_SUN4C | SM_4C_SLC)) || - (idprom->id_machtype == (SM_SUN4C | SM_4C_ELC)))) { + if (sparc_cpu_model != sun4m) { /* We certainly don't have a floppy controller. */ goto no_sun_fdc; } /* Well, try to find one. */ tnode = prom_getchild(prom_root_node); fd_node = prom_searchsiblings(tnode, "obio"); - if(fd_node != 0) { + if (fd_node != 0) { tnode = prom_getchild(fd_node); fd_node = prom_searchsiblings(tnode, "SUNW,fdtwo"); } else { fd_node = prom_searchsiblings(tnode, "fd"); } - if(fd_node == 0) { + if (fd_node == 0) { goto no_sun_fdc; } /* The sun4m lets us know if the controller is actually usable. */ - if(sparc_cpu_model == sun4m && - prom_getproperty(fd_node, "status", state, sizeof(state)) != -1) { + if (prom_getproperty(fd_node, "status", state, sizeof(state)) != -1) { if(!strcmp(state, "disabled")) { goto no_sun_fdc; } @@ -343,12 +324,12 @@ static int sun_floppy_init(void) memset(&r, 0, sizeof(r)); r.flags = fd_regs[0].which_io; r.start = fd_regs[0].phys_addr; - sun_fdc = (struct sun_flpy_controller *) - of_ioremap(&r, 0, fd_regs[0].reg_size, "floppy"); + sun_fdc = of_ioremap(&r, 0, fd_regs[0].reg_size, "floppy"); /* Look up irq in platform_device. * We try "SUNW,fdtwo" and "fd" */ + op = NULL; for_each_node_by_name(dp, "SUNW,fdtwo") { op = of_find_device_by_node(dp); if (op) @@ -367,7 +348,7 @@ static int sun_floppy_init(void) FLOPPY_IRQ = op->archdata.irqs[0]; /* Last minute sanity check... */ - if(sun_fdc->status_82072 == 0xff) { + if (sun_fdc->status_82072 == 0xff) { sun_fdc = NULL; goto no_sun_fdc; } diff --git a/arch/sparc/include/asm/floppy_64.h b/arch/sparc/include/asm/floppy_64.h index bcef1f5a2a6..e204f902e6c 100644 --- a/arch/sparc/include/asm/floppy_64.h +++ b/arch/sparc/include/asm/floppy_64.h @@ -161,10 +161,7 @@ unsigned long pdma_areasize; static void sun_fd_disable_dma(void) { doing_pdma = 0; - if (pdma_base) { - mmu_unlockarea(pdma_base, pdma_areasize); - pdma_base = NULL; - } + pdma_base = NULL; } static void sun_fd_set_dma_mode(int mode) @@ -194,7 +191,6 @@ static void sun_fd_set_dma_count(int length) static void sun_fd_enable_dma(void) { - pdma_vaddr = mmu_lockarea(pdma_vaddr, pdma_size); pdma_base = pdma_vaddr; pdma_areasize = pdma_size; } diff --git a/arch/sparc/include/asm/head_32.h b/arch/sparc/include/asm/head_32.h index 7c35491a8b5..a76874838f6 100644 --- a/arch/sparc/include/asm/head_32.h +++ b/arch/sparc/include/asm/head_32.h @@ -2,15 +2,8 @@ #define __SPARC_HEAD_H #define KERNBASE 0xf0000000 /* First address the kernel will eventually be */ -#define LOAD_ADDR 0x4000 /* prom jumps to us here unless this is elf /boot */ -#define SUN4C_SEGSZ (1 << 18) -#define SRMMU_L1_KBASE_OFFSET ((KERNBASE>>24)<<2) /* Used in boot remapping. */ -#define INTS_ENAB 0x01 /* entry.S uses this. */ - -#define SUN4_PROM_VECTOR 0xFFE81000 /* SUN4 PROM needs to be hardwired */ #define WRITE_PAUSE nop; nop; nop; /* Have to do this after %wim/%psr chg */ -#define NOP_INSN 0x01000000 /* Used to patch sparc_save_state */ /* Here are some trap goodies */ @@ -18,9 +11,7 @@ #define TRAP_ENTRY(type, label) \ rd %psr, %l0; b label; rd %wim, %l3; nop; -/* Data/text faults. Defaults to sun4c version at boot time. */ -#define SPARC_TFAULT rd %psr, %l0; rd %wim, %l3; b sun4c_fault; mov 1, %l7; -#define SPARC_DFAULT rd %psr, %l0; rd %wim, %l3; b sun4c_fault; mov 0, %l7; +/* Data/text faults */ #define SRMMU_TFAULT rd %psr, %l0; rd %wim, %l3; b srmmu_fault; mov 1, %l7; #define SRMMU_DFAULT rd %psr, %l0; rd %wim, %l3; b srmmu_fault; mov 0, %l7; @@ -80,16 +71,6 @@ #define TRAP_ENTRY_INTERRUPT(int_level) \ mov int_level, %l7; rd %psr, %l0; b real_irq_entry; rd %wim, %l3; -/* NMI's (Non Maskable Interrupts) are special, you can't keep them - * from coming in, and basically if you get one, the shows over. ;( - * On the sun4c they are usually asynchronous memory errors, on the - * the sun4m they could be either due to mem errors or a software - * initiated interrupt from the prom/kern on an SMP box saying "I - * command you to do CPU tricks, read your mailbox for more info." - */ -#define NMI_TRAP \ - rd %wim, %l3; b linux_trap_nmi_sun4c; mov %psr, %l0; nop; - /* Window overflows/underflows are special and we need to try to be as * efficient as possible here.... */ diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h index a4e457f003e..07659124c14 100644 --- a/arch/sparc/include/asm/leon.h +++ b/arch/sparc/include/asm/leon.h @@ -10,19 +10,6 @@ #ifdef CONFIG_SPARC_LEON -#define ASI_LEON_NOCACHE 0x01 - -#define ASI_LEON_DCACHE_MISS 0x1 - -#define ASI_LEON_CACHEREGS 0x02 -#define ASI_LEON_IFLUSH 0x10 -#define ASI_LEON_DFLUSH 0x11 - -#define ASI_LEON_MMUFLUSH 0x18 -#define ASI_LEON_MMUREGS 0x19 -#define ASI_LEON_BYPASS 0x1c -#define ASI_LEON_FLUSH_PAGE 0x10 - /* mmu register access, ASI_LEON_MMUREGS */ #define LEON_CNR_CTRL 0x000 #define LEON_CNR_CTXP 0x100 @@ -57,29 +44,6 @@ #define LEON_IRQMASK_R 0x0000fffe /* bit 15- 1 of lregs.irqmask */ #define LEON_IRQPRIO_R 0xfffe0000 /* bit 31-17 of lregs.irqmask */ -/* leon uart register definitions */ -#define LEON_OFF_UDATA 0x0 -#define LEON_OFF_USTAT 0x4 -#define LEON_OFF_UCTRL 0x8 -#define LEON_OFF_USCAL 0xc - -#define LEON_UCTRL_RE 0x01 -#define LEON_UCTRL_TE 0x02 -#define LEON_UCTRL_RI 0x04 -#define LEON_UCTRL_TI 0x08 -#define LEON_UCTRL_PS 0x10 -#define LEON_UCTRL_PE 0x20 -#define LEON_UCTRL_FL 0x40 -#define LEON_UCTRL_LB 0x80 - -#define LEON_USTAT_DR 0x01 -#define LEON_USTAT_TS 0x02 -#define LEON_USTAT_TH 0x04 -#define LEON_USTAT_BR 0x08 -#define LEON_USTAT_OV 0x10 -#define LEON_USTAT_PE 0x20 -#define LEON_USTAT_FE 0x40 - #define LEON_MCFG2_SRAMDIS 0x00002000 #define LEON_MCFG2_SDRAMEN 0x00004000 #define LEON_MCFG2_SRAMBANKSZ 0x00001e00 /* [12-9] */ @@ -89,8 +53,6 @@ #define LEON_TCNT0_MASK 0x7fffff -#define LEON_USTAT_ERROR (LEON_USTAT_OV | LEON_USTAT_PE | LEON_USTAT_FE) -/* no break yet */ #define ASI_LEON3_SYSCTRL 0x02 #define ASI_LEON3_SYSCTRL_ICFG 0x08 @@ -278,18 +240,11 @@ static inline int sparc_leon3_cpuid(void) #define LEON2_CFG_SSIZE_MASK 0x00007000UL #ifndef __ASSEMBLY__ -extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr); -extern void leon_flush_icache_all(void); -extern void leon_flush_dcache_all(void); -extern void leon_flush_cache_all(void); -extern void leon_flush_tlb_all(void); -extern int leon_flush_during_switch; -extern int leon_flush_needed(void); - struct vm_area_struct; + +extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr); extern void leon_flush_icache_all(void); extern void leon_flush_dcache_all(void); -extern void leon_flush_pcache_all(struct vm_area_struct *vma, unsigned long page); extern void leon_flush_cache_all(void); extern void leon_flush_tlb_all(void); extern int leon_flush_during_switch; @@ -315,28 +270,19 @@ struct leon2_cacheregs { #include <linux/interrupt.h> struct device_node; +struct task_struct; extern unsigned int leon_build_device_irq(unsigned int real_irq, irq_flow_handler_t flow_handler, const char *name, int do_ack); extern void leon_update_virq_handling(unsigned int virq, irq_flow_handler_t flow_handler, const char *name, int do_ack); -extern void leon_clear_clock_irq(void); -extern void leon_load_profile_irq(int cpu, unsigned int limit); -extern void leon_init_timers(irq_handler_t counter_fn); -extern void leon_clear_clock_irq(void); -extern void leon_load_profile_irq(int cpu, unsigned int limit); +extern void leon_init_timers(void); extern void leon_trans_init(struct device_node *dp); extern void leon_node_init(struct device_node *dp, struct device_node ***nextp); -extern void leon_init_IRQ(void); -extern void leon_init(void); -extern unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr); extern void init_leon(void); extern void poke_leonsparc(void); extern void leon3_getCacheRegs(struct leon3_cacheregs *regs); -extern int leon_flush_needed(void); -extern void leon_switch_mm(void); -extern int srmmu_swprobe_trace; extern int leon3_ticker_irq; #ifdef CONFIG_SMP @@ -344,7 +290,7 @@ extern int leon_smp_nrcpus(void); extern void leon_clear_profile_irq(int cpu); extern void leon_smp_done(void); extern void leon_boot_cpus(void); -extern int leon_boot_one_cpu(int i); +extern int leon_boot_one_cpu(int i, struct task_struct *); void leon_init_smp(void); extern void cpu_idle(void); extern void init_IRQ(void); @@ -380,7 +326,7 @@ extern int leon_ipi_irq; #define init_leon() do {} while (0) #define leon_smp_done() do {} while (0) #define leon_boot_cpus() do {} while (0) -#define leon_boot_one_cpu(i) 1 +#define leon_boot_one_cpu(i, t) 1 #define leon_init_smp() do {} while (0) #endif /* !defined(CONFIG_SPARC_LEON) */ diff --git a/arch/sparc/include/asm/machines.h b/arch/sparc/include/asm/machines.h index cd9c099567e..fd6ddb05d1b 100644 --- a/arch/sparc/include/asm/machines.h +++ b/arch/sparc/include/asm/machines.h @@ -12,11 +12,6 @@ struct Sun_Machine_Models { unsigned char id_machtype; }; -/* Current number of machines we know about that has an IDPROM - * machtype entry including one entry for the 0x80 OBP machines. - */ -#define NUM_SUN_MACHINES 16 - /* The machine type in the idprom area looks like this: * * --------------- @@ -24,36 +19,20 @@ struct Sun_Machine_Models { * --------------- * 7 4 3 0 * - * The ARCH field determines the architecture line (sun4, sun4c, etc). + * The ARCH field determines the architecture line (sun4m, etc). * The MACH field determines the machine make within that architecture. */ #define SM_ARCH_MASK 0xf0 -#define SM_SUN4 0x20 #define M_LEON 0x30 -#define SM_SUN4C 0x50 #define SM_SUN4M 0x70 #define SM_SUN4M_OBP 0x80 #define SM_TYP_MASK 0x0f -/* Sun4 machines */ -#define SM_4_260 0x01 /* Sun 4/200 series */ -#define SM_4_110 0x02 /* Sun 4/100 series */ -#define SM_4_330 0x03 /* Sun 4/300 series */ -#define SM_4_470 0x04 /* Sun 4/400 series */ /* Leon machines */ #define M_LEON3_SOC 0x02 /* Leon3 SoC */ -/* Sun4c machines Full Name - PROM NAME */ -#define SM_4C_SS1 0x01 /* Sun4c SparcStation 1 - Sun 4/60 */ -#define SM_4C_IPC 0x02 /* Sun4c SparcStation IPC - Sun 4/40 */ -#define SM_4C_SS1PLUS 0x03 /* Sun4c SparcStation 1+ - Sun 4/65 */ -#define SM_4C_SLC 0x04 /* Sun4c SparcStation SLC - Sun 4/20 */ -#define SM_4C_SS2 0x05 /* Sun4c SparcStation 2 - Sun 4/75 */ -#define SM_4C_ELC 0x06 /* Sun4c SparcStation ELC - Sun 4/25 */ -#define SM_4C_IPX 0x07 /* Sun4c SparcStation IPX - Sun 4/50 */ - /* Sun4m machines, these predate the OpenBoot. These values only mean * something if the value in the ARCH field is SM_SUN4M, if it is * SM_SUN4M_OBP then you have the following situation: diff --git a/arch/sparc/include/asm/mbus.h b/arch/sparc/include/asm/mbus.h index 69f07a022ee..14128bcc582 100644 --- a/arch/sparc/include/asm/mbus.h +++ b/arch/sparc/include/asm/mbus.h @@ -8,14 +8,10 @@ #define _SPARC_MBUS_H #include <asm/ross.h> /* HyperSparc stuff */ -#include <asm/cypress.h> /* Cypress Chips */ #include <asm/viking.h> /* Ugh, bug city... */ enum mbus_module { HyperSparc = 0, - Cypress = 1, - Cypress_vE = 2, - Cypress_vD = 3, Swift_ok = 4, Swift_bad_c = 5, Swift_lots_o_bugs = 6, diff --git a/arch/sparc/include/asm/memreg.h b/arch/sparc/include/asm/memreg.h deleted file mode 100644 index 845ad2b3918..00000000000 --- a/arch/sparc/include/asm/memreg.h +++ /dev/null @@ -1,51 +0,0 @@ -#ifndef _SPARC_MEMREG_H -#define _SPARC_MEMREG_H -/* memreg.h: Definitions of the values found in the synchronous - * and asynchronous memory error registers when a fault - * occurs on the sun4c. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -/* First the synchronous error codes, these are usually just - * normal page faults. - */ - -#define SUN4C_SYNC_WDRESET 0x0001 /* watchdog reset */ -#define SUN4C_SYNC_SIZE 0x0002 /* bad access size? whuz this? */ -#define SUN4C_SYNC_PARITY 0x0008 /* bad ram chips caused a parity error */ -#define SUN4C_SYNC_SBUS 0x0010 /* the SBUS had some problems... */ -#define SUN4C_SYNC_NOMEM 0x0020 /* translation to non-existent ram */ -#define SUN4C_SYNC_PROT 0x0040 /* access violated pte protections */ -#define SUN4C_SYNC_NPRESENT 0x0080 /* pte said that page was not present */ -#define SUN4C_SYNC_BADWRITE 0x8000 /* while writing something went bogus */ - -#define SUN4C_SYNC_BOLIXED \ - (SUN4C_SYNC_WDRESET | SUN4C_SYNC_SIZE | SUN4C_SYNC_SBUS | \ - SUN4C_SYNC_NOMEM | SUN4C_SYNC_PARITY) - -/* Now the asynchronous error codes, these are almost always produced - * by the cache writing things back to memory and getting a bad translation. - * Bad DVMA transactions can cause these faults too. - */ - -#define SUN4C_ASYNC_BADDVMA 0x0010 /* error during DVMA access */ -#define SUN4C_ASYNC_NOMEM 0x0020 /* write back pointed to bad phys addr */ -#define SUN4C_ASYNC_BADWB 0x0080 /* write back points to non-present page */ - -/* Memory parity error register with associated bit constants. */ -#ifndef __ASSEMBLY__ -extern __volatile__ unsigned long __iomem *sun4c_memerr_reg; -#endif - -#define SUN4C_MPE_ERROR 0x80 /* Parity error detected. (ro) */ -#define SUN4C_MPE_MULTI 0x40 /* Multiple parity errors detected. (ro) */ -#define SUN4C_MPE_TEST 0x20 /* Write inverse parity. (rw) */ -#define SUN4C_MPE_CHECK 0x10 /* Enable parity checking. (rw) */ -#define SUN4C_MPE_ERR00 0x08 /* Parity error in bits 0-7. (ro) */ -#define SUN4C_MPE_ERR08 0x04 /* Parity error in bits 8-15. (ro) */ -#define SUN4C_MPE_ERR16 0x02 /* Parity error in bits 16-23. (ro) */ -#define SUN4C_MPE_ERR24 0x01 /* Parity error in bits 24-31. (ro) */ -#define SUN4C_MPE_ERRS 0x0F /* Bit mask for the error bits. (ro) */ - -#endif /* !(_SPARC_MEMREG_H) */ diff --git a/arch/sparc/include/asm/mmu_context_32.h b/arch/sparc/include/asm/mmu_context_32.h index 671a997b9e6..01456c90072 100644 --- a/arch/sparc/include/asm/mmu_context_32.h +++ b/arch/sparc/include/asm/mmu_context_32.h @@ -1,8 +1,6 @@ #ifndef __SPARC_MMU_CONTEXT_H #define __SPARC_MMU_CONTEXT_H -#include <asm/btfixup.h> - #ifndef __ASSEMBLY__ #include <asm-generic/mm_hooks.h> @@ -23,14 +21,11 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) * all the page tables have been flushed. Our job is to destroy * any remaining processor-specific state. */ -BTFIXUPDEF_CALL(void, destroy_context, struct mm_struct *) - -#define destroy_context(mm) BTFIXUP_CALL(destroy_context)(mm) +void destroy_context(struct mm_struct *mm); /* Switch the current MM context. */ -BTFIXUPDEF_CALL(void, switch_mm, struct mm_struct *, struct mm_struct *, struct task_struct *) - -#define switch_mm(old_mm, mm, tsk) BTFIXUP_CALL(switch_mm)(old_mm, mm, tsk) +void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, + struct task_struct *tsk); #define deactivate_mm(tsk,mm) do { } while (0) diff --git a/arch/sparc/include/asm/obio.h b/arch/sparc/include/asm/obio.h index 4ade0c8a2c7..910c1d9af1f 100644 --- a/arch/sparc/include/asm/obio.h +++ b/arch/sparc/include/asm/obio.h @@ -220,19 +220,6 @@ static inline void cc_set_igen(unsigned gen) "i" (ASI_M_MXCC)); } -/* +-------+-------------+-----------+------------------------------------+ - * | bcast | devid | sid | levels mask | - * +-------+-------------+-----------+------------------------------------+ - * 31 30 23 22 15 14 0 - */ -#define IGEN_MESSAGE(bcast, devid, sid, levels) \ - (((bcast) << 31) | ((devid) << 23) | ((sid) << 15) | (levels)) - -static inline void sun4d_send_ipi(int cpu, int level) -{ - cc_set_igen(IGEN_MESSAGE(0, cpu << 3, 6 + ((level >> 1) & 7), 1 << (level - 1))); -} - #endif /* !__ASSEMBLY__ */ #endif /* !(_SPARC_OBIO_H) */ diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h index 71e5e9aeb67..27517879a6c 100644 --- a/arch/sparc/include/asm/oplib_32.h +++ b/arch/sparc/include/asm/oplib_32.h @@ -105,14 +105,6 @@ extern void prom_write(const char *buf, unsigned int len); extern int prom_startcpu(int cpunode, struct linux_prom_registers *context_table, int context, char *program_counter); -/* Sun4/sun4c specific memory-management startup hook. */ - -/* Map the passed segment in the given context at the passed - * virtual address. - */ -extern void prom_putsegment(int context, unsigned long virt_addr, - int physical_segment); - /* Initialize the memory lists based upon the prom version. */ void prom_meminit(void); diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h index bb5c2ac4055..fab78a308eb 100644 --- a/arch/sparc/include/asm/page_32.h +++ b/arch/sparc/include/asm/page_32.h @@ -14,8 +14,6 @@ #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE-1)) -#include <asm/btfixup.h> - #ifndef __ASSEMBLY__ #define clear_page(page) memset((void *)(page), 0, PAGE_SIZE) @@ -45,12 +43,6 @@ struct sparc_phys_banks { extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS+1]; -/* Cache alias structure. Entry is valid if context != -1. */ -struct cache_palias { - unsigned long vaddr; - int context; -}; - /* passing structs on the Sparc slow us down tremendously... */ /* #define STRICT_MM_TYPECHECKS */ @@ -116,10 +108,7 @@ typedef unsigned long iopgprot_t; typedef struct page *pgtable_t; extern unsigned long sparc_unmapped_base; - -BTFIXUPDEF_SETHI(sparc_unmapped_base) - -#define TASK_UNMAPPED_BASE BTFIXUP_SETHI(sparc_unmapped_base) +#define TASK_UNMAPPED_BASE sparc_unmapped_base #else /* !(__ASSEMBLY__) */ diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h index ca2b34456c4..e5b169b46d2 100644 --- a/arch/sparc/include/asm/pgalloc_32.h +++ b/arch/sparc/include/asm/pgalloc_32.h @@ -4,8 +4,10 @@ #include <linux/kernel.h> #include <linux/sched.h> +#include <asm/pgtsrmmu.h> +#include <asm/pgtable.h> +#include <asm/vaddrs.h> #include <asm/page.h> -#include <asm/btfixup.h> struct page; @@ -15,54 +17,74 @@ extern struct pgtable_cache_struct { unsigned long pgtable_cache_sz; unsigned long pgd_cache_sz; } pgt_quicklists; + +unsigned long srmmu_get_nocache(int size, int align); +void srmmu_free_nocache(unsigned long vaddr, int size); + #define pgd_quicklist (pgt_quicklists.pgd_cache) #define pmd_quicklist ((unsigned long *)0) #define pte_quicklist (pgt_quicklists.pte_cache) #define pgtable_cache_size (pgt_quicklists.pgtable_cache_sz) #define pgd_cache_size (pgt_quicklists.pgd_cache_sz) -extern void check_pgt_cache(void); -BTFIXUPDEF_CALL(void, do_check_pgt_cache, int, int) -#define do_check_pgt_cache(low,high) BTFIXUP_CALL(do_check_pgt_cache)(low,high) - -BTFIXUPDEF_CALL(pgd_t *, get_pgd_fast, void) -#define get_pgd_fast() BTFIXUP_CALL(get_pgd_fast)() +#define check_pgt_cache() do { } while (0) -BTFIXUPDEF_CALL(void, free_pgd_fast, pgd_t *) -#define free_pgd_fast(pgd) BTFIXUP_CALL(free_pgd_fast)(pgd) +pgd_t *get_pgd_fast(void); +static inline void free_pgd_fast(pgd_t *pgd) +{ + srmmu_free_nocache((unsigned long)pgd, SRMMU_PGD_TABLE_SIZE); +} #define pgd_free(mm, pgd) free_pgd_fast(pgd) #define pgd_alloc(mm) get_pgd_fast() -BTFIXUPDEF_CALL(void, pgd_set, pgd_t *, pmd_t *) -#define pgd_set(pgdp,pmdp) BTFIXUP_CALL(pgd_set)(pgdp,pmdp) +static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp) +{ + unsigned long pa = __nocache_pa((unsigned long)pmdp); + + set_pte((pte_t *)pgdp, (SRMMU_ET_PTD | (pa >> 4))); +} + #define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD) -BTFIXUPDEF_CALL(pmd_t *, pmd_alloc_one, struct mm_struct *, unsigned long) -#define pmd_alloc_one(mm, address) BTFIXUP_CALL(pmd_alloc_one)(mm, address) +static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, + unsigned long address) +{ + return (pmd_t *)srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, + SRMMU_PMD_TABLE_SIZE); +} -BTFIXUPDEF_CALL(void, free_pmd_fast, pmd_t *) -#define free_pmd_fast(pmd) BTFIXUP_CALL(free_pmd_fast)(pmd) +static inline void free_pmd_fast(pmd_t * pmd) +{ + srmmu_free_nocache((unsigned long)pmd, SRMMU_PMD_TABLE_SIZE); +} #define pmd_free(mm, pmd) free_pmd_fast(pmd) #define __pmd_free_tlb(tlb, pmd, addr) pmd_free((tlb)->mm, pmd) -BTFIXUPDEF_CALL(void, pmd_populate, pmd_t *, struct page *) -#define pmd_populate(MM, PMD, PTE) BTFIXUP_CALL(pmd_populate)(PMD, PTE) +void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep); #define pmd_pgtable(pmd) pmd_page(pmd) -BTFIXUPDEF_CALL(void, pmd_set, pmd_t *, pte_t *) -#define pmd_populate_kernel(MM, PMD, PTE) BTFIXUP_CALL(pmd_set)(PMD, PTE) -BTFIXUPDEF_CALL(pgtable_t , pte_alloc_one, struct mm_struct *, unsigned long) -#define pte_alloc_one(mm, address) BTFIXUP_CALL(pte_alloc_one)(mm, address) -BTFIXUPDEF_CALL(pte_t *, pte_alloc_one_kernel, struct mm_struct *, unsigned long) -#define pte_alloc_one_kernel(mm, addr) BTFIXUP_CALL(pte_alloc_one_kernel)(mm, addr) +void pmd_set(pmd_t *pmdp, pte_t *ptep); +#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE) + +pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address); + +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, + unsigned long address) +{ + return (pte_t *)srmmu_get_nocache(PTE_SIZE, PTE_SIZE); +} + + +static inline void free_pte_fast(pte_t *pte) +{ + srmmu_free_nocache((unsigned long)pte, PTE_SIZE); +} -BTFIXUPDEF_CALL(void, free_pte_fast, pte_t *) -#define pte_free_kernel(mm, pte) BTFIXUP_CALL(free_pte_fast)(pte) +#define pte_free_kernel(mm, pte) free_pte_fast(pte) -BTFIXUPDEF_CALL(void, pte_free, pgtable_t ) -#define pte_free(mm, pte) BTFIXUP_CALL(pte_free)(pte) +void pte_free(struct mm_struct * mm, pgtable_t pte); #define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, pte) #endif /* _SPARC_PGALLOC_H */ diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h index 3d7101860e6..cbbbed5cb3a 100644 --- a/arch/sparc/include/asm/pgtable_32.h +++ b/arch/sparc/include/asm/pgtable_32.h @@ -16,11 +16,9 @@ #include <linux/spinlock.h> #include <linux/swap.h> #include <asm/types.h> -#include <asm/pgtsun4c.h> #include <asm/pgtsrmmu.h> -#include <asm/vac-ops.h> +#include <asm/vaddrs.h> #include <asm/oplib.h> -#include <asm/btfixup.h> #include <asm/cpu_type.h> @@ -30,87 +28,55 @@ struct page; extern void load_mmu(void); extern unsigned long calc_highpages(void); -BTFIXUPDEF_SIMM13(pgdir_shift) -BTFIXUPDEF_SETHI(pgdir_size) -BTFIXUPDEF_SETHI(pgdir_mask) - -BTFIXUPDEF_SIMM13(ptrs_per_pmd) -BTFIXUPDEF_SIMM13(ptrs_per_pgd) -BTFIXUPDEF_SIMM13(user_ptrs_per_pgd) - #define pte_ERROR(e) __builtin_trap() #define pmd_ERROR(e) __builtin_trap() #define pgd_ERROR(e) __builtin_trap() -BTFIXUPDEF_INT(page_none) -BTFIXUPDEF_INT(page_copy) -BTFIXUPDEF_INT(page_readonly) -BTFIXUPDEF_INT(page_kernel) - -#define PMD_SHIFT SUN4C_PMD_SHIFT +#define PMD_SHIFT 22 #define PMD_SIZE (1UL << PMD_SHIFT) #define PMD_MASK (~(PMD_SIZE-1)) #define PMD_ALIGN(__addr) (((__addr) + ~PMD_MASK) & PMD_MASK) -#define PGDIR_SHIFT BTFIXUP_SIMM13(pgdir_shift) -#define PGDIR_SIZE BTFIXUP_SETHI(pgdir_size) -#define PGDIR_MASK BTFIXUP_SETHI(pgdir_mask) +#define PGDIR_SHIFT SRMMU_PGDIR_SHIFT +#define PGDIR_SIZE SRMMU_PGDIR_SIZE +#define PGDIR_MASK SRMMU_PGDIR_MASK #define PTRS_PER_PTE 1024 -#define PTRS_PER_PMD BTFIXUP_SIMM13(ptrs_per_pmd) -#define PTRS_PER_PGD BTFIXUP_SIMM13(ptrs_per_pgd) -#define USER_PTRS_PER_PGD BTFIXUP_SIMM13(user_ptrs_per_pgd) +#define PTRS_PER_PMD SRMMU_PTRS_PER_PMD +#define PTRS_PER_PGD SRMMU_PTRS_PER_PGD +#define USER_PTRS_PER_PGD PAGE_OFFSET / SRMMU_PGDIR_SIZE #define FIRST_USER_ADDRESS 0 #define PTE_SIZE (PTRS_PER_PTE*4) -#define PAGE_NONE __pgprot(BTFIXUP_INT(page_none)) -extern pgprot_t PAGE_SHARED; -#define PAGE_COPY __pgprot(BTFIXUP_INT(page_copy)) -#define PAGE_READONLY __pgprot(BTFIXUP_INT(page_readonly)) - -extern unsigned long page_kernel; - -#ifdef MODULE -#define PAGE_KERNEL page_kernel -#else -#define PAGE_KERNEL __pgprot(BTFIXUP_INT(page_kernel)) -#endif +#define PAGE_NONE SRMMU_PAGE_NONE +#define PAGE_SHARED SRMMU_PAGE_SHARED +#define PAGE_COPY SRMMU_PAGE_COPY +#define PAGE_READONLY SRMMU_PAGE_RDONLY +#define PAGE_KERNEL SRMMU_PAGE_KERNEL /* Top-level page directory */ extern pgd_t swapper_pg_dir[1024]; extern void paging_init(void); -/* Page table for 0-4MB for everybody, on the Sparc this - * holds the same as on the i386. - */ -extern pte_t pg0[1024]; -extern pte_t pg1[1024]; -extern pte_t pg2[1024]; -extern pte_t pg3[1024]; - extern unsigned long ptr_in_current_pgd; -/* Here is a trick, since mmap.c need the initializer elements for - * protection_map[] to be constant at compile time, I set the following - * to all zeros. I set it to the real values after I link in the - * appropriate MMU page table routines at boot time. - */ -#define __P000 __pgprot(0) -#define __P001 __pgprot(0) -#define __P010 __pgprot(0) -#define __P011 __pgprot(0) -#define __P100 __pgprot(0) -#define __P101 __pgprot(0) -#define __P110 __pgprot(0) -#define __P111 __pgprot(0) +/* xwr */ +#define __P000 PAGE_NONE +#define __P001 PAGE_READONLY +#define __P010 PAGE_COPY +#define __P011 PAGE_COPY +#define __P100 PAGE_READONLY +#define __P101 PAGE_READONLY +#define __P110 PAGE_COPY +#define __P111 PAGE_COPY -#define __S000 __pgprot(0) -#define __S001 __pgprot(0) -#define __S010 __pgprot(0) -#define __S011 __pgprot(0) -#define __S100 __pgprot(0) -#define __S101 __pgprot(0) -#define __S110 __pgprot(0) -#define __S111 __pgprot(0) +#define __S000 PAGE_NONE +#define __S001 PAGE_READONLY +#define __S010 PAGE_SHARED +#define __S011 PAGE_SHARED +#define __S100 PAGE_READONLY +#define __S101 PAGE_READONLY +#define __S110 PAGE_SHARED +#define __S111 PAGE_SHARED extern int num_contexts; @@ -137,82 +103,137 @@ extern unsigned long empty_zero_page; #define ZERO_PAGE(vaddr) (virt_to_page(&empty_zero_page)) /* + * In general all page table modifications should use the V8 atomic + * swap instruction. This insures the mmu and the cpu are in sync + * with respect to ref/mod bits in the page tables. + */ +static inline unsigned long srmmu_swap(unsigned long *addr, unsigned long value) +{ + __asm__ __volatile__("swap [%2], %0" : "=&r" (value) : "0" (value), "r" (addr)); + return value; +} + +/* Certain architectures need to do special things when pte's + * within a page table are directly modified. Thus, the following + * hook is made available. */ -BTFIXUPDEF_CALL_CONST(struct page *, pmd_page, pmd_t) -BTFIXUPDEF_CALL_CONST(unsigned long, pgd_page_vaddr, pgd_t) -#define pmd_page(pmd) BTFIXUP_CALL(pmd_page)(pmd) -#define pgd_page_vaddr(pgd) BTFIXUP_CALL(pgd_page_vaddr)(pgd) +static inline void set_pte(pte_t *ptep, pte_t pteval) +{ + srmmu_swap((unsigned long *)ptep, pte_val(pteval)); +} + +#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) + +static inline int srmmu_device_memory(unsigned long x) +{ + return ((x & 0xF0000000) != 0); +} + +static inline struct page *pmd_page(pmd_t pmd) +{ + if (srmmu_device_memory(pmd_val(pmd))) + BUG(); + return pfn_to_page((pmd_val(pmd) & SRMMU_PTD_PMASK) >> (PAGE_SHIFT-4)); +} + +static inline unsigned long pgd_page_vaddr(pgd_t pgd) +{ + if (srmmu_device_memory(pgd_val(pgd))) { + return ~0; + } else { + unsigned long v = pgd_val(pgd) & SRMMU_PTD_PMASK; + return (unsigned long)__nocache_va(v << 4); + } +} -BTFIXUPDEF_CALL_CONST(int, pte_present, pte_t) -BTFIXUPDEF_CALL(void, pte_clear, pte_t *) +static inline int pte_present(pte_t pte) +{ + return ((pte_val(pte) & SRMMU_ET_MASK) == SRMMU_ET_PTE); +} static inline int pte_none(pte_t pte) { return !pte_val(pte); } -#define pte_present(pte) BTFIXUP_CALL(pte_present)(pte) -#define pte_clear(mm,addr,pte) BTFIXUP_CALL(pte_clear)(pte) +static inline void __pte_clear(pte_t *ptep) +{ + set_pte(ptep, __pte(0)); +} + +static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep) +{ + __pte_clear(ptep); +} + +static inline int pmd_bad(pmd_t pmd) +{ + return (pmd_val(pmd) & SRMMU_ET_MASK) != SRMMU_ET_PTD; +} -BTFIXUPDEF_CALL_CONST(int, pmd_bad, pmd_t) -BTFIXUPDEF_CALL_CONST(int, pmd_present, pmd_t) -BTFIXUPDEF_CALL(void, pmd_clear, pmd_t *) +static inline int pmd_present(pmd_t pmd) +{ + return ((pmd_val(pmd) & SRMMU_ET_MASK) == SRMMU_ET_PTD); +} static inline int pmd_none(pmd_t pmd) { return !pmd_val(pmd); } -#define pmd_bad(pmd) BTFIXUP_CALL(pmd_bad)(pmd) -#define pmd_present(pmd) BTFIXUP_CALL(pmd_present)(pmd) -#define pmd_clear(pmd) BTFIXUP_CALL(pmd_clear)(pmd) +static inline void pmd_clear(pmd_t *pmdp) +{ + int i; + for (i = 0; i < PTRS_PER_PTE/SRMMU_REAL_PTRS_PER_PTE; i++) + set_pte((pte_t *)&pmdp->pmdv[i], __pte(0)); +} -BTFIXUPDEF_CALL_CONST(int, pgd_none, pgd_t) -BTFIXUPDEF_CALL_CONST(int, pgd_bad, pgd_t) -BTFIXUPDEF_CALL_CONST(int, pgd_present, pgd_t) -BTFIXUPDEF_CALL(void, pgd_clear, pgd_t *) +static inline int pgd_none(pgd_t pgd) +{ + return !(pgd_val(pgd) & 0xFFFFFFF); +} -#define pgd_none(pgd) BTFIXUP_CALL(pgd_none)(pgd) -#define pgd_bad(pgd) BTFIXUP_CALL(pgd_bad)(pgd) -#define pgd_present(pgd) BTFIXUP_CALL(pgd_present)(pgd) -#define pgd_clear(pgd) BTFIXUP_CALL(pgd_clear)(pgd) +static inline int pgd_bad(pgd_t pgd) +{ + return (pgd_val(pgd) & SRMMU_ET_MASK) != SRMMU_ET_PTD; +} + +static inline int pgd_present(pgd_t pgd) +{ + return ((pgd_val(pgd) & SRMMU_ET_MASK) == SRMMU_ET_PTD); +} + +static inline void pgd_clear(pgd_t *pgdp) +{ + set_pte((pte_t *)pgdp, __pte(0)); +} /* * The following only work if pte_present() is true. * Undefined behaviour if not.. */ -BTFIXUPDEF_HALF(pte_writei) -BTFIXUPDEF_HALF(pte_dirtyi) -BTFIXUPDEF_HALF(pte_youngi) - -static int pte_write(pte_t pte) __attribute_const__; static inline int pte_write(pte_t pte) { - return pte_val(pte) & BTFIXUP_HALF(pte_writei); + return pte_val(pte) & SRMMU_WRITE; } -static int pte_dirty(pte_t pte) __attribute_const__; static inline int pte_dirty(pte_t pte) { - return pte_val(pte) & BTFIXUP_HALF(pte_dirtyi); + return pte_val(pte) & SRMMU_DIRTY; } -static int pte_young(pte_t pte) __attribute_const__; static inline int pte_young(pte_t pte) { - return pte_val(pte) & BTFIXUP_HALF(pte_youngi); + return pte_val(pte) & SRMMU_REF; } /* * The following only work if pte_present() is not true. */ -BTFIXUPDEF_HALF(pte_filei) - -static int pte_file(pte_t pte) __attribute_const__; static inline int pte_file(pte_t pte) { - return pte_val(pte) & BTFIXUP_HALF(pte_filei); + return pte_val(pte) & SRMMU_FILE; } static inline int pte_special(pte_t pte) @@ -220,68 +241,85 @@ static inline int pte_special(pte_t pte) return 0; } -/* - */ -BTFIXUPDEF_HALF(pte_wrprotecti) -BTFIXUPDEF_HALF(pte_mkcleani) -BTFIXUPDEF_HALF(pte_mkoldi) - -static pte_t pte_wrprotect(pte_t pte) __attribute_const__; static inline pte_t pte_wrprotect(pte_t pte) { - return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_wrprotecti)); + return __pte(pte_val(pte) & ~SRMMU_WRITE); } -static pte_t pte_mkclean(pte_t pte) __attribute_const__; static inline pte_t pte_mkclean(pte_t pte) { - return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_mkcleani)); + return __pte(pte_val(pte) & ~SRMMU_DIRTY); } -static pte_t pte_mkold(pte_t pte) __attribute_const__; static inline pte_t pte_mkold(pte_t pte) { - return __pte(pte_val(pte) & ~BTFIXUP_HALF(pte_mkoldi)); + return __pte(pte_val(pte) & ~SRMMU_REF); } -BTFIXUPDEF_CALL_CONST(pte_t, pte_mkwrite, pte_t) -BTFIXUPDEF_CALL_CONST(pte_t, pte_mkdirty, pte_t) -BTFIXUPDEF_CALL_CONST(pte_t, pte_mkyoung, pte_t) +static inline pte_t pte_mkwrite(pte_t pte) +{ + return __pte(pte_val(pte) | SRMMU_WRITE); +} + +static inline pte_t pte_mkdirty(pte_t pte) +{ + return __pte(pte_val(pte) | SRMMU_DIRTY); +} -#define pte_mkwrite(pte) BTFIXUP_CALL(pte_mkwrite)(pte) -#define pte_mkdirty(pte) BTFIXUP_CALL(pte_mkdirty)(pte) -#define pte_mkyoung(pte) BTFIXUP_CALL(pte_mkyoung)(pte) +static inline pte_t pte_mkyoung(pte_t pte) +{ + return __pte(pte_val(pte) | SRMMU_REF); +} #define pte_mkspecial(pte) (pte) #define pfn_pte(pfn, prot) mk_pte(pfn_to_page(pfn), prot) -BTFIXUPDEF_CALL(unsigned long, pte_pfn, pte_t) -#define pte_pfn(pte) BTFIXUP_CALL(pte_pfn)(pte) +static inline unsigned long pte_pfn(pte_t pte) +{ + if (srmmu_device_memory(pte_val(pte))) { + /* Just return something that will cause + * pfn_valid() to return false. This makes + * copy_one_pte() to just directly copy to + * PTE over. + */ + return ~0UL; + } + return (pte_val(pte) & SRMMU_PTE_PMASK) >> (PAGE_SHIFT-4); +} + #define pte_page(pte) pfn_to_page(pte_pfn(pte)) /* * Conversion functions: convert a page and protection to a page entry, * and a page entry and page directory to the page they refer to. */ -BTFIXUPDEF_CALL_CONST(pte_t, mk_pte, struct page *, pgprot_t) - -BTFIXUPDEF_CALL_CONST(pte_t, mk_pte_phys, unsigned long, pgprot_t) -BTFIXUPDEF_CALL_CONST(pte_t, mk_pte_io, unsigned long, pgprot_t, int) -BTFIXUPDEF_CALL_CONST(pgprot_t, pgprot_noncached, pgprot_t) +static inline pte_t mk_pte(struct page *page, pgprot_t pgprot) +{ + return __pte((page_to_pfn(page) << (PAGE_SHIFT-4)) | pgprot_val(pgprot)); +} -#define mk_pte(page,pgprot) BTFIXUP_CALL(mk_pte)(page,pgprot) -#define mk_pte_phys(page,pgprot) BTFIXUP_CALL(mk_pte_phys)(page,pgprot) -#define mk_pte_io(page,pgprot,space) BTFIXUP_CALL(mk_pte_io)(page,pgprot,space) +static inline pte_t mk_pte_phys(unsigned long page, pgprot_t pgprot) +{ + return __pte(((page) >> 4) | pgprot_val(pgprot)); +} -#define pgprot_noncached(pgprot) BTFIXUP_CALL(pgprot_noncached)(pgprot) +static inline pte_t mk_pte_io(unsigned long page, pgprot_t pgprot, int space) +{ + return __pte(((page) >> 4) | (space << 28) | pgprot_val(pgprot)); +} -BTFIXUPDEF_INT(pte_modify_mask) +#define pgprot_noncached pgprot_noncached +static inline pgprot_t pgprot_noncached(pgprot_t prot) +{ + prot &= ~__pgprot(SRMMU_CACHE); + return prot; +} static pte_t pte_modify(pte_t pte, pgprot_t newprot) __attribute_const__; static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { - return __pte((pte_val(pte) & BTFIXUP_INT(pte_modify_mask)) | + return __pte((pte_val(pte) & SRMMU_CHG_MASK) | pgprot_val(newprot)); } @@ -294,74 +332,69 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) #define pgd_offset_k(address) pgd_offset(&init_mm, address) /* Find an entry in the second-level page table.. */ -BTFIXUPDEF_CALL(pmd_t *, pmd_offset, pgd_t *, unsigned long) -#define pmd_offset(dir,addr) BTFIXUP_CALL(pmd_offset)(dir,addr) +static inline pmd_t *pmd_offset(pgd_t * dir, unsigned long address) +{ + return (pmd_t *) pgd_page_vaddr(*dir) + + ((address >> PMD_SHIFT) & (PTRS_PER_PMD - 1)); +} /* Find an entry in the third-level page table.. */ -BTFIXUPDEF_CALL(pte_t *, pte_offset_kernel, pmd_t *, unsigned long) -#define pte_offset_kernel(dir,addr) BTFIXUP_CALL(pte_offset_kernel)(dir,addr) +pte_t *pte_offset_kernel(pmd_t * dir, unsigned long address); /* - * This shortcut works on sun4m (and sun4d) because the nocache area is static, - * and sun4c is guaranteed to have no highmem anyway. + * This shortcut works on sun4m (and sun4d) because the nocache area is static. */ #define pte_offset_map(d, a) pte_offset_kernel(d,a) #define pte_unmap(pte) do{}while(0) -/* Certain architectures need to do special things when pte's - * within a page table are directly modified. Thus, the following - * hook is made available. - */ - -BTFIXUPDEF_CALL(void, set_pte, pte_t *, pte_t) - -#define set_pte(ptep,pteval) BTFIXUP_CALL(set_pte)(ptep,pteval) -#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) - struct seq_file; -BTFIXUPDEF_CALL(void, mmu_info, struct seq_file *) - -#define mmu_info(p) BTFIXUP_CALL(mmu_info)(p) +void mmu_info(struct seq_file *m); /* Fault handler stuff... */ #define FAULT_CODE_PROT 0x1 #define FAULT_CODE_WRITE 0x2 #define FAULT_CODE_USER 0x4 -BTFIXUPDEF_CALL(void, update_mmu_cache, struct vm_area_struct *, unsigned long, pte_t *) - -#define update_mmu_cache(vma,addr,ptep) BTFIXUP_CALL(update_mmu_cache)(vma,addr,ptep) - -BTFIXUPDEF_CALL(void, sparc_mapiorange, unsigned int, unsigned long, - unsigned long, unsigned int) -BTFIXUPDEF_CALL(void, sparc_unmapiorange, unsigned long, unsigned int) -#define sparc_mapiorange(bus,pa,va,len) BTFIXUP_CALL(sparc_mapiorange)(bus,pa,va,len) -#define sparc_unmapiorange(va,len) BTFIXUP_CALL(sparc_unmapiorange)(va,len) +#define update_mmu_cache(vma, address, ptep) do { } while (0) -extern int invalid_segment; +void srmmu_mapiorange(unsigned int bus, unsigned long xpa, + unsigned long xva, unsigned int len); +void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len); /* Encode and de-code a swap entry */ -BTFIXUPDEF_CALL(unsigned long, __swp_type, swp_entry_t) -BTFIXUPDEF_CALL(unsigned long, __swp_offset, swp_entry_t) -BTFIXUPDEF_CALL(swp_entry_t, __swp_entry, unsigned long, unsigned long) +static inline unsigned long __swp_type(swp_entry_t entry) +{ + return (entry.val >> SRMMU_SWP_TYPE_SHIFT) & SRMMU_SWP_TYPE_MASK; +} + +static inline unsigned long __swp_offset(swp_entry_t entry) +{ + return (entry.val >> SRMMU_SWP_OFF_SHIFT) & SRMMU_SWP_OFF_MASK; +} -#define __swp_type(__x) BTFIXUP_CALL(__swp_type)(__x) -#define __swp_offset(__x) BTFIXUP_CALL(__swp_offset)(__x) -#define __swp_entry(__type,__off) BTFIXUP_CALL(__swp_entry)(__type,__off) +static inline swp_entry_t __swp_entry(unsigned long type, unsigned long offset) +{ + return (swp_entry_t) { + (type & SRMMU_SWP_TYPE_MASK) << SRMMU_SWP_TYPE_SHIFT + | (offset & SRMMU_SWP_OFF_MASK) << SRMMU_SWP_OFF_SHIFT }; +} #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) /* file-offset-in-pte helpers */ -BTFIXUPDEF_CALL(unsigned long, pte_to_pgoff, pte_t pte); -BTFIXUPDEF_CALL(pte_t, pgoff_to_pte, unsigned long pgoff); +static inline unsigned long pte_to_pgoff(pte_t pte) +{ + return pte_val(pte) >> SRMMU_PTE_FILE_SHIFT; +} -#define pte_to_pgoff(pte) BTFIXUP_CALL(pte_to_pgoff)(pte) -#define pgoff_to_pte(off) BTFIXUP_CALL(pgoff_to_pte)(off) +static inline pte_t pgoff_to_pte(unsigned long pgoff) +{ + return __pte((pgoff << SRMMU_PTE_FILE_SHIFT) | SRMMU_FILE); +} /* * This is made a constant because mm/fremap.c required a constant. - * Note that layout of these bits is different between sun4c.c and srmmu.c. */ #define PTE_FILE_MAX_BITS 24 @@ -399,9 +432,6 @@ static inline unsigned long __get_phys (unsigned long addr) { switch (sparc_cpu_model){ - case sun4: - case sun4c: - return sun4c_get_pte (addr) << PAGE_SHIFT; case sun4m: case sun4d: return ((srmmu_get_pte (addr) & 0xffffff00) << 4); @@ -414,9 +444,6 @@ static inline int __get_iospace (unsigned long addr) { switch (sparc_cpu_model){ - case sun4: - case sun4c: - return -1; /* Don't check iospace on sun4c */ case sun4m: case sun4d: return (srmmu_get_pte (addr) >> 28); @@ -463,7 +490,7 @@ static inline int io_remap_pfn_range(struct vm_area_struct *vma, set_pte_at((__vma)->vm_mm, (__address), __ptep, __entry); \ flush_tlb_page(__vma, __address); \ } \ - (sparc_cpu_model == sun4c) || __changed; \ + __changed; \ }) #include <asm-generic/pgtable.h> @@ -471,10 +498,8 @@ static inline int io_remap_pfn_range(struct vm_area_struct *vma, #endif /* !(__ASSEMBLY__) */ #define VMALLOC_START _AC(0xfe600000,UL) -/* XXX Alter this when I get around to fixing sun4c - Anton */ #define VMALLOC_END _AC(0xffc00000,UL) - /* We provide our own get_unmapped_area to cope with VA holes for userland */ #define HAVE_ARCH_UNMAPPED_AREA diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h index 76e4a52aa85..61210db139f 100644 --- a/arch/sparc/include/asm/pgtable_64.h +++ b/arch/sparc/include/asm/pgtable_64.h @@ -717,10 +717,6 @@ extern unsigned long find_ecache_flush_span(unsigned long size); struct seq_file; extern void mmu_info(struct seq_file *); -/* These do nothing with the way I have things setup. */ -#define mmu_lockarea(vaddr, len) (vaddr) -#define mmu_unlockarea(vaddr, len) do { } while(0) - struct vm_area_struct; extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t *); diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h index f6ae2b2b687..cb828703a63 100644 --- a/arch/sparc/include/asm/pgtsrmmu.h +++ b/arch/sparc/include/asm/pgtsrmmu.h @@ -173,17 +173,6 @@ static inline void srmmu_set_ctable_ptr(unsigned long paddr) "memory"); } -static inline unsigned long srmmu_get_ctable_ptr(void) -{ - unsigned int retval; - - __asm__ __volatile__("lda [%1] %2, %0\n\t" : - "=r" (retval) : - "r" (SRMMU_CTXTBL_PTR), - "i" (ASI_M_MMUREGS)); - return (retval & SRMMU_CTX_PMASK) << 4; -} - static inline void srmmu_set_context(int context) { __asm__ __volatile__("sta %0, [%1] %2\n\t" : : @@ -231,42 +220,6 @@ static inline void srmmu_flush_whole_tlb(void) } /* These flush types are not available on all chips... */ -static inline void srmmu_flush_tlb_ctx(void) -{ - __asm__ __volatile__("sta %%g0, [%0] %1\n\t": : - "r" (0x300), /* Flush TLB ctx.. */ - "i" (ASI_M_FLUSH_PROBE) : "memory"); - -} - -static inline void srmmu_flush_tlb_region(unsigned long addr) -{ - addr &= SRMMU_PGDIR_MASK; - __asm__ __volatile__("sta %%g0, [%0] %1\n\t": : - "r" (addr | 0x200), /* Flush TLB region.. */ - "i" (ASI_M_FLUSH_PROBE) : "memory"); - -} - - -static inline void srmmu_flush_tlb_segment(unsigned long addr) -{ - addr &= SRMMU_REAL_PMD_MASK; - __asm__ __volatile__("sta %%g0, [%0] %1\n\t": : - "r" (addr | 0x100), /* Flush TLB segment.. */ - "i" (ASI_M_FLUSH_PROBE) : "memory"); - -} - -static inline void srmmu_flush_tlb_page(unsigned long page) -{ - page &= PAGE_MASK; - __asm__ __volatile__("sta %%g0, [%0] %1\n\t": : - "r" (page), /* Flush TLB page.. */ - "i" (ASI_M_FLUSH_PROBE) : "memory"); - -} - #ifndef CONFIG_SPARC_LEON static inline unsigned long srmmu_hwprobe(unsigned long vaddr) { @@ -294,9 +247,6 @@ srmmu_get_pte (unsigned long addr) return entry; } -extern unsigned long (*srmmu_read_physical)(unsigned long paddr); -extern void (*srmmu_write_physical)(unsigned long paddr, unsigned long word); - #endif /* !(__ASSEMBLY__) */ #endif /* !(_SPARC_PGTSRMMU_H) */ diff --git a/arch/sparc/include/asm/pgtsun4c.h b/arch/sparc/include/asm/pgtsun4c.h deleted file mode 100644 index aeb25e91217..00000000000 --- a/arch/sparc/include/asm/pgtsun4c.h +++ /dev/null @@ -1,172 +0,0 @@ -/* - * pgtsun4c.h: Sun4c specific pgtable.h defines and code. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ -#ifndef _SPARC_PGTSUN4C_H -#define _SPARC_PGTSUN4C_H - -#include <asm/contregs.h> - -/* PMD_SHIFT determines the size of the area a second-level page table can map */ -#define SUN4C_PMD_SHIFT 22 - -/* PGDIR_SHIFT determines what a third-level page table entry can map */ -#define SUN4C_PGDIR_SHIFT 22 -#define SUN4C_PGDIR_SIZE (1UL << SUN4C_PGDIR_SHIFT) -#define SUN4C_PGDIR_MASK (~(SUN4C_PGDIR_SIZE-1)) -#define SUN4C_PGDIR_ALIGN(addr) (((addr)+SUN4C_PGDIR_SIZE-1)&SUN4C_PGDIR_MASK) - -/* To represent how the sun4c mmu really lays things out. */ -#define SUN4C_REAL_PGDIR_SHIFT 18 -#define SUN4C_REAL_PGDIR_SIZE (1UL << SUN4C_REAL_PGDIR_SHIFT) -#define SUN4C_REAL_PGDIR_MASK (~(SUN4C_REAL_PGDIR_SIZE-1)) -#define SUN4C_REAL_PGDIR_ALIGN(addr) (((addr)+SUN4C_REAL_PGDIR_SIZE-1)&SUN4C_REAL_PGDIR_MASK) - -/* 16 bit PFN on sun4c */ -#define SUN4C_PFN_MASK 0xffff - -/* Don't increase these unless the structures in sun4c.c are fixed */ -#define SUN4C_MAX_SEGMAPS 256 -#define SUN4C_MAX_CONTEXTS 16 - -/* - * To be efficient, and not have to worry about allocating such - * a huge pgd, we make the kernel sun4c tables each hold 1024 - * entries and the pgd similarly just like the i386 tables. - */ -#define SUN4C_PTRS_PER_PTE 1024 -#define SUN4C_PTRS_PER_PMD 1 -#define SUN4C_PTRS_PER_PGD 1024 - -/* - * Sparc SUN4C pte fields. - */ -#define _SUN4C_PAGE_VALID 0x80000000 -#define _SUN4C_PAGE_SILENT_READ 0x80000000 /* synonym */ -#define _SUN4C_PAGE_DIRTY 0x40000000 -#define _SUN4C_PAGE_SILENT_WRITE 0x40000000 /* synonym */ -#define _SUN4C_PAGE_PRIV 0x20000000 /* privileged page */ -#define _SUN4C_PAGE_NOCACHE 0x10000000 /* non-cacheable page */ -#define _SUN4C_PAGE_PRESENT 0x08000000 /* implemented in software */ -#define _SUN4C_PAGE_IO 0x04000000 /* I/O page */ -#define _SUN4C_PAGE_FILE 0x02000000 /* implemented in software */ -#define _SUN4C_PAGE_READ 0x00800000 /* implemented in software */ -#define _SUN4C_PAGE_WRITE 0x00400000 /* implemented in software */ -#define _SUN4C_PAGE_ACCESSED 0x00200000 /* implemented in software */ -#define _SUN4C_PAGE_MODIFIED 0x00100000 /* implemented in software */ - -#define _SUN4C_READABLE (_SUN4C_PAGE_READ|_SUN4C_PAGE_SILENT_READ|\ - _SUN4C_PAGE_ACCESSED) -#define _SUN4C_WRITEABLE (_SUN4C_PAGE_WRITE|_SUN4C_PAGE_SILENT_WRITE|\ - _SUN4C_PAGE_MODIFIED) - -#define _SUN4C_PAGE_CHG_MASK (0xffff|_SUN4C_PAGE_ACCESSED|_SUN4C_PAGE_MODIFIED) - -#define SUN4C_PAGE_NONE __pgprot(_SUN4C_PAGE_PRESENT) -#define SUN4C_PAGE_SHARED __pgprot(_SUN4C_PAGE_PRESENT|_SUN4C_READABLE|\ - _SUN4C_PAGE_WRITE) -#define SUN4C_PAGE_COPY __pgprot(_SUN4C_PAGE_PRESENT|_SUN4C_READABLE) -#define SUN4C_PAGE_READONLY __pgprot(_SUN4C_PAGE_PRESENT|_SUN4C_READABLE) -#define SUN4C_PAGE_KERNEL __pgprot(_SUN4C_READABLE|_SUN4C_WRITEABLE|\ - _SUN4C_PAGE_DIRTY|_SUN4C_PAGE_PRIV) - -/* SUN4C swap entry encoding - * - * We use 5 bits for the type and 19 for the offset. This gives us - * 32 swapfiles of 4GB each. Encoding looks like: - * - * RRRRRRRRooooooooooooooooooottttt - * fedcba9876543210fedcba9876543210 - * - * The top 8 bits are reserved for protection and status bits, especially - * FILE and PRESENT. - */ -#define SUN4C_SWP_TYPE_MASK 0x1f -#define SUN4C_SWP_OFF_MASK 0x7ffff -#define SUN4C_SWP_OFF_SHIFT 5 - -#ifndef __ASSEMBLY__ - -static inline unsigned long sun4c_get_synchronous_error(void) -{ - unsigned long sync_err; - - __asm__ __volatile__("lda [%1] %2, %0\n\t" : - "=r" (sync_err) : - "r" (AC_SYNC_ERR), "i" (ASI_CONTROL)); - return sync_err; -} - -static inline unsigned long sun4c_get_synchronous_address(void) -{ - unsigned long sync_addr; - - __asm__ __volatile__("lda [%1] %2, %0\n\t" : - "=r" (sync_addr) : - "r" (AC_SYNC_VA), "i" (ASI_CONTROL)); - return sync_addr; -} - -/* SUN4C pte, segmap, and context manipulation */ -static inline unsigned long sun4c_get_segmap(unsigned long addr) -{ - register unsigned long entry; - - __asm__ __volatile__("\n\tlduba [%1] %2, %0\n\t" : - "=r" (entry) : - "r" (addr), "i" (ASI_SEGMAP)); - - return entry; -} - -static inline void sun4c_put_segmap(unsigned long addr, unsigned long entry) -{ - - __asm__ __volatile__("\n\tstba %1, [%0] %2; nop; nop; nop;\n\t" : : - "r" (addr), "r" (entry), - "i" (ASI_SEGMAP) - : "memory"); -} - -static inline unsigned long sun4c_get_pte(unsigned long addr) -{ - register unsigned long entry; - - __asm__ __volatile__("\n\tlda [%1] %2, %0\n\t" : - "=r" (entry) : - "r" (addr), "i" (ASI_PTE)); - return entry; -} - -static inline void sun4c_put_pte(unsigned long addr, unsigned long entry) -{ - __asm__ __volatile__("\n\tsta %1, [%0] %2; nop; nop; nop;\n\t" : : - "r" (addr), - "r" ((entry & ~(_SUN4C_PAGE_PRESENT))), "i" (ASI_PTE) - : "memory"); -} - -static inline int sun4c_get_context(void) -{ - register int ctx; - - __asm__ __volatile__("\n\tlduba [%1] %2, %0\n\t" : - "=r" (ctx) : - "r" (AC_CONTEXT), "i" (ASI_CONTROL)); - - return ctx; -} - -static inline int sun4c_set_context(int ctx) -{ - __asm__ __volatile__("\n\tstba %0, [%1] %2; nop; nop; nop;\n\t" : : - "r" (ctx), "r" (AC_CONTEXT), "i" (ASI_CONTROL) - : "memory"); - - return ctx; -} - -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(_SPARC_PGTSUN4C_H) */ diff --git a/arch/sparc/include/asm/processor_32.h b/arch/sparc/include/asm/processor_32.h index 09521c6a5ed..9cbd854fdfd 100644 --- a/arch/sparc/include/asm/processor_32.h +++ b/arch/sparc/include/asm/processor_32.h @@ -16,7 +16,6 @@ #include <asm/ptrace.h> #include <asm/head.h> #include <asm/signal.h> -#include <asm/btfixup.h> #include <asm/page.h> /* diff --git a/arch/sparc/include/asm/setup.h b/arch/sparc/include/asm/setup.h index 00497abec99..8a83699a550 100644 --- a/arch/sparc/include/asm/setup.h +++ b/arch/sparc/include/asm/setup.h @@ -20,10 +20,7 @@ extern char reboot_command[]; * Only sun4d + leon may have boot_cpu_id != 0 */ extern unsigned char boot_cpu_id; -extern unsigned char boot_cpu_id4; -extern unsigned long empty_bad_page; -extern unsigned long empty_bad_page_table; extern unsigned long empty_zero_page; extern int serial_console; diff --git a/arch/sparc/include/asm/shmparam_32.h b/arch/sparc/include/asm/shmparam_32.h index 59a1243c12f..142825c8d3a 100644 --- a/arch/sparc/include/asm/shmparam_32.h +++ b/arch/sparc/include/asm/shmparam_32.h @@ -4,8 +4,6 @@ #define __ARCH_FORCE_SHMLBA 1 extern int vac_cache_size; -#define SHMLBA (vac_cache_size ? vac_cache_size : \ - (sparc_cpu_model == sun4c ? (64 * 1024) : \ - (sparc_cpu_model == sun4 ? (128 * 1024) : PAGE_SIZE))) +#define SHMLBA (vac_cache_size ? vac_cache_size : PAGE_SIZE) #endif /* _ASMSPARC_SHMPARAM_H */ diff --git a/arch/sparc/include/asm/smp_32.h b/arch/sparc/include/asm/smp_32.h index 01c51c70434..b73da3c5f10 100644 --- a/arch/sparc/include/asm/smp_32.h +++ b/arch/sparc/include/asm/smp_32.h @@ -8,7 +8,6 @@ #include <linux/threads.h> #include <asm/head.h> -#include <asm/btfixup.h> #ifndef __ASSEMBLY__ @@ -58,104 +57,53 @@ struct seq_file; void smp_bogo(struct seq_file *); void smp_info(struct seq_file *); -BTFIXUPDEF_CALL(void, smp_cross_call, smpfunc_t, cpumask_t, unsigned long, unsigned long, unsigned long, unsigned long) -BTFIXUPDEF_CALL(int, __hard_smp_processor_id, void) -BTFIXUPDEF_CALL(void, smp_ipi_resched, int); -BTFIXUPDEF_CALL(void, smp_ipi_single, int); -BTFIXUPDEF_CALL(void, smp_ipi_mask_one, int); -BTFIXUPDEF_BLACKBOX(hard_smp_processor_id) -BTFIXUPDEF_BLACKBOX(load_current) +struct sparc32_ipi_ops { + void (*cross_call)(smpfunc_t func, cpumask_t mask, unsigned long arg1, + unsigned long arg2, unsigned long arg3, + unsigned long arg4); + void (*resched)(int cpu); + void (*single)(int cpu); + void (*mask_one)(int cpu); +}; +extern const struct sparc32_ipi_ops *sparc32_ipi_ops; -#define smp_cross_call(func,mask,arg1,arg2,arg3,arg4) BTFIXUP_CALL(smp_cross_call)(func,mask,arg1,arg2,arg3,arg4) +static inline void xc0(smpfunc_t func) +{ + sparc32_ipi_ops->cross_call(func, *cpu_online_mask, 0, 0, 0, 0); +} -static inline void xc0(smpfunc_t func) { smp_cross_call(func, *cpu_online_mask, 0, 0, 0, 0); } static inline void xc1(smpfunc_t func, unsigned long arg1) -{ smp_cross_call(func, *cpu_online_mask, arg1, 0, 0, 0); } -static inline void xc2(smpfunc_t func, unsigned long arg1, unsigned long arg2) -{ smp_cross_call(func, *cpu_online_mask, arg1, arg2, 0, 0); } -static inline void xc3(smpfunc_t func, unsigned long arg1, unsigned long arg2, - unsigned long arg3) -{ smp_cross_call(func, *cpu_online_mask, arg1, arg2, arg3, 0); } -static inline void xc4(smpfunc_t func, unsigned long arg1, unsigned long arg2, - unsigned long arg3, unsigned long arg4) -{ smp_cross_call(func, *cpu_online_mask, arg1, arg2, arg3, arg4); } - -extern void arch_send_call_function_single_ipi(int cpu); -extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); - -static inline int cpu_logical_map(int cpu) { - return cpu; + sparc32_ipi_ops->cross_call(func, *cpu_online_mask, arg1, 0, 0, 0); } - -static inline int hard_smp4m_processor_id(void) +static inline void xc2(smpfunc_t func, unsigned long arg1, unsigned long arg2) { - int cpuid; - - __asm__ __volatile__("rd %%tbr, %0\n\t" - "srl %0, 12, %0\n\t" - "and %0, 3, %0\n\t" : - "=&r" (cpuid)); - return cpuid; + sparc32_ipi_ops->cross_call(func, *cpu_online_mask, arg1, arg2, 0, 0); } -static inline int hard_smp4d_processor_id(void) +static inline void xc3(smpfunc_t func, unsigned long arg1, unsigned long arg2, + unsigned long arg3) { - int cpuid; - - __asm__ __volatile__("lda [%%g0] %1, %0\n\t" : - "=&r" (cpuid) : "i" (ASI_M_VIKING_TMP1)); - return cpuid; + sparc32_ipi_ops->cross_call(func, *cpu_online_mask, + arg1, arg2, arg3, 0); } -extern inline int hard_smpleon_processor_id(void) +static inline void xc4(smpfunc_t func, unsigned long arg1, unsigned long arg2, + unsigned long arg3, unsigned long arg4) { - int cpuid; - __asm__ __volatile__("rd %%asr17,%0\n\t" - "srl %0,28,%0" : - "=&r" (cpuid) : ); - return cpuid; + sparc32_ipi_ops->cross_call(func, *cpu_online_mask, + arg1, arg2, arg3, arg4); } -#ifndef MODULE -static inline int hard_smp_processor_id(void) -{ - int cpuid; +extern void arch_send_call_function_single_ipi(int cpu); +extern void arch_send_call_function_ipi_mask(const struct cpumask *mask); - /* Black box - sun4m - __asm__ __volatile__("rd %%tbr, %0\n\t" - "srl %0, 12, %0\n\t" - "and %0, 3, %0\n\t" : - "=&r" (cpuid)); - - sun4d - __asm__ __volatile__("lda [%g0] ASI_M_VIKING_TMP1, %0\n\t" - "nop; nop" : - "=&r" (cpuid)); - - leon - __asm__ __volatile__( "rd %asr17, %0\n\t" - "srl %0, 0x1c, %0\n\t" - "nop\n\t" : - "=&r" (cpuid)); - See btfixup.h and btfixupprep.c to understand how a blackbox works. - */ - __asm__ __volatile__("sethi %%hi(___b_hard_smp_processor_id), %0\n\t" - "sethi %%hi(boot_cpu_id), %0\n\t" - "ldub [%0 + %%lo(boot_cpu_id)], %0\n\t" : - "=&r" (cpuid)); - return cpuid; -} -#else -static inline int hard_smp_processor_id(void) +static inline int cpu_logical_map(int cpu) { - int cpuid; - - __asm__ __volatile__("mov %%o7, %%g1\n\t" - "call ___f___hard_smp_processor_id\n\t" - " nop\n\t" - "mov %%g2, %0\n\t" : "=r"(cpuid) : : "g1", "g2"); - return cpuid; + return cpu; } -#endif + +extern int hard_smp_processor_id(void); #define raw_smp_processor_id() (current_thread_info()->cpu) diff --git a/arch/sparc/include/asm/smpprim.h b/arch/sparc/include/asm/smpprim.h deleted file mode 100644 index eb849d862c6..00000000000 --- a/arch/sparc/include/asm/smpprim.h +++ /dev/null @@ -1,54 +0,0 @@ -/* - * smpprim.h: SMP locking primitives on the Sparc - * - * God knows we won't be actually using this code for some time - * but I thought I'd write it since I knew how. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef __SPARC_SMPPRIM_H -#define __SPARC_SMPPRIM_H - -/* Test and set the unsigned byte at ADDR to 1. Returns the previous - * value. On the Sparc we use the ldstub instruction since it is - * atomic. - */ - -static inline __volatile__ char test_and_set(void *addr) -{ - char state = 0; - - __asm__ __volatile__("ldstub [%0], %1 ! test_and_set\n\t" - "=r" (addr), "=r" (state) : - "0" (addr), "1" (state) : "memory"); - - return state; -} - -/* Initialize a spin-lock. */ -static inline __volatile__ smp_initlock(void *spinlock) -{ - /* Unset the lock. */ - *((unsigned char *) spinlock) = 0; - - return; -} - -/* This routine spins until it acquires the lock at ADDR. */ -static inline __volatile__ smp_lock(void *addr) -{ - while(test_and_set(addr) == 0xff) - ; - - /* We now have the lock */ - return; -} - -/* This routine releases the lock at ADDR. */ -static inline __volatile__ smp_unlock(void *addr) -{ - *((unsigned char *) addr) = 0; -} - -#endif /* !(__SPARC_SMPPRIM_H) */ diff --git a/arch/sparc/include/asm/string_32.h b/arch/sparc/include/asm/string_32.h index edf196ee4ef..12f67857152 100644 --- a/arch/sparc/include/asm/string_32.h +++ b/arch/sparc/include/asm/string_32.h @@ -61,68 +61,7 @@ extern int memcmp(const void *,const void *,__kernel_size_t); extern __kernel_size_t strlen(const char *); #define __HAVE_ARCH_STRNCMP - -extern int __strncmp(const char *, const char *, __kernel_size_t); - -static inline int __constant_strncmp(const char *src, const char *dest, __kernel_size_t count) -{ - register int retval; - switch(count) { - case 0: return 0; - case 1: return (src[0] - dest[0]); - case 2: retval = (src[0] - dest[0]); - if(!retval && src[0]) - retval = (src[1] - dest[1]); - return retval; - case 3: retval = (src[0] - dest[0]); - if(!retval && src[0]) { - retval = (src[1] - dest[1]); - if(!retval && src[1]) - retval = (src[2] - dest[2]); - } - return retval; - case 4: retval = (src[0] - dest[0]); - if(!retval && src[0]) { - retval = (src[1] - dest[1]); - if(!retval && src[1]) { - retval = (src[2] - dest[2]); - if (!retval && src[2]) - retval = (src[3] - dest[3]); - } - } - return retval; - case 5: retval = (src[0] - dest[0]); - if(!retval && src[0]) { - retval = (src[1] - dest[1]); - if(!retval && src[1]) { - retval = (src[2] - dest[2]); - if (!retval && src[2]) { - retval = (src[3] - dest[3]); - if (!retval && src[3]) - retval = (src[4] - dest[4]); - } - } - } - return retval; - default: - retval = (src[0] - dest[0]); - if(!retval && src[0]) { - retval = (src[1] - dest[1]); - if(!retval && src[1]) { - retval = (src[2] - dest[2]); - if(!retval && src[2]) - retval = __strncmp(src+3,dest+3,count-3); - } - } - return retval; - } -} - -#undef strncmp -#define strncmp(__arg0, __arg1, __arg2) \ -(__builtin_constant_p(__arg2) ? \ - __constant_strncmp(__arg0, __arg1, __arg2) : \ - __strncmp(__arg0, __arg1, __arg2)) +extern int strncmp(const char *, const char *, __kernel_size_t); #endif /* !EXPORT_SYMTAB_STROPS */ diff --git a/arch/sparc/include/asm/sysen.h b/arch/sparc/include/asm/sysen.h deleted file mode 100644 index 6af34abde6e..00000000000 --- a/arch/sparc/include/asm/sysen.h +++ /dev/null @@ -1,15 +0,0 @@ -/* - * sysen.h: Bit fields within the "System Enable" register accessed via - * the ASI_CONTROL address space at address AC_SYSENABLE. - * - * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu) - */ - -#ifndef _SPARC_SYSEN_H -#define _SPARC_SYSEN_H - -#define SENABLE_DVMA 0x20 /* enable dvma transfers */ -#define SENABLE_CACHE 0x10 /* enable VAC cache */ -#define SENABLE_RESET 0x04 /* reset whole machine, danger Will Robinson */ - -#endif /* _SPARC_SYSEN_H */ diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h index c2a1080cdd3..21a38946541 100644 --- a/arch/sparc/include/asm/thread_info_32.h +++ b/arch/sparc/include/asm/thread_info_32.h @@ -15,7 +15,6 @@ #ifndef __ASSEMBLY__ -#include <asm/btfixup.h> #include <asm/ptrace.h> #include <asm/page.h> @@ -80,13 +79,8 @@ register struct thread_info *current_thread_info_reg asm("g6"); */ #define THREAD_INFO_ORDER 1 -#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR - -BTFIXUPDEF_CALL(struct thread_info *, alloc_thread_info_node, int) -#define alloc_thread_info_node(tsk, node) BTFIXUP_CALL(alloc_thread_info_node)(node) - -BTFIXUPDEF_CALL(void, free_thread_info, struct thread_info *) -#define free_thread_info(ti) BTFIXUP_CALL(free_thread_info)(ti) +struct thread_info * alloc_thread_info_node(struct task_struct *tsk, int node); +void free_thread_info(struct thread_info *); #endif /* __ASSEMBLY__ */ diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h index 01d057fe6a3..7f0981b0945 100644 --- a/arch/sparc/include/asm/thread_info_64.h +++ b/arch/sparc/include/asm/thread_info_64.h @@ -138,32 +138,11 @@ register struct thread_info *current_thread_info_reg asm("g6"); /* thread information allocation */ #if PAGE_SHIFT == 13 -#define __THREAD_INFO_ORDER 1 +#define THREAD_SIZE_ORDER 1 #else /* PAGE_SHIFT == 13 */ -#define __THREAD_INFO_ORDER 0 +#define THREAD_SIZE_ORDER 0 #endif /* PAGE_SHIFT == 13 */ -#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR - -#ifdef CONFIG_DEBUG_STACK_USAGE -#define THREAD_FLAGS (GFP_KERNEL | __GFP_ZERO) -#else -#define THREAD_FLAGS (GFP_KERNEL) -#endif - -#define alloc_thread_info_node(tsk, node) \ -({ \ - struct page *page = alloc_pages_node(node, THREAD_FLAGS, \ - __THREAD_INFO_ORDER); \ - struct thread_info *ret; \ - \ - ret = page ? page_address(page) : NULL; \ - ret; \ -}) - -#define free_thread_info(ti) \ - free_pages((unsigned long)(ti),__THREAD_INFO_ORDER) - #define __thread_flag_byte_ptr(ti) \ ((unsigned char *)(&((ti)->flags))) #define __cur_thread_flag_byte_ptr __thread_flag_byte_ptr(current_thread_info()) diff --git a/arch/sparc/include/asm/timer_32.h b/arch/sparc/include/asm/timer_32.h index 1a91e11dd10..72f40a546de 100644 --- a/arch/sparc/include/asm/timer_32.h +++ b/arch/sparc/include/asm/timer_32.h @@ -8,14 +8,37 @@ #ifndef _SPARC_TIMER_H #define _SPARC_TIMER_H +#include <linux/clocksource.h> +#include <linux/irqreturn.h> + +#include <asm-generic/percpu.h> + #include <asm/cpu_type.h> /* For SUN4M_NCPUS */ -#include <asm/btfixup.h> + +#define SBUS_CLOCK_RATE 2000000 /* 2MHz */ +#define TIMER_VALUE_SHIFT 9 +#define TIMER_VALUE_MASK 0x3fffff +#define TIMER_LIMIT_BIT (1 << 31) /* Bit 31 in Counter-Timer register */ + +/* The counter timer register has the value offset by 9 bits. + * From sun4m manual: + * When a counter reaches the value in the corresponding limit register, + * the Limit bit is set and the counter is set to 500 nS (i.e. 0x00000200). + * + * To compensate for this add one to the value. + */ +static inline unsigned int timer_value(unsigned int value) +{ + return (value + 1) << TIMER_VALUE_SHIFT; +} extern __volatile__ unsigned int *master_l10_counter; -/* FIXME: Make do_[gs]ettimeofday btfixup calls */ -struct timespec; -BTFIXUPDEF_CALL(int, bus_do_settimeofday, struct timespec *tv) -#define bus_do_settimeofday(tv) BTFIXUP_CALL(bus_do_settimeofday)(tv) +extern irqreturn_t notrace timer_interrupt(int dummy, void *dev_id); + +#ifdef CONFIG_SMP +DECLARE_PER_CPU(struct clock_event_device, sparc32_clockevent); +extern void register_percpu_ce(int cpu); +#endif #endif /* !(_SPARC_TIMER_H) */ diff --git a/arch/sparc/include/asm/timex_32.h b/arch/sparc/include/asm/timex_32.h index a254750e4c0..b6ccdb0d6f7 100644 --- a/arch/sparc/include/asm/timex_32.h +++ b/arch/sparc/include/asm/timex_32.h @@ -12,5 +12,4 @@ typedef unsigned long cycles_t; #define get_cycles() (0) -extern u32 (*do_arch_gettimeoffset)(void); #endif diff --git a/arch/sparc/include/asm/tlbflush_32.h b/arch/sparc/include/asm/tlbflush_32.h index fe0a71abc9b..a5c4142130f 100644 --- a/arch/sparc/include/asm/tlbflush_32.h +++ b/arch/sparc/include/asm/tlbflush_32.h @@ -1,52 +1,16 @@ #ifndef _SPARC_TLBFLUSH_H #define _SPARC_TLBFLUSH_H -#include <linux/mm.h> -// #include <asm/processor.h> +#include <asm/cachetlb_32.h> -/* - * TLB flushing: - * - * - flush_tlb() flushes the current mm struct TLBs XXX Exists? - * - flush_tlb_all() flushes all processes TLBs - * - flush_tlb_mm(mm) flushes the specified mm context TLB's - * - flush_tlb_page(vma, vmaddr) flushes one page - * - flush_tlb_range(vma, start, end) flushes a range of pages - * - flush_tlb_kernel_range(start, end) flushes a range of kernel pages - */ - -#ifdef CONFIG_SMP - -BTFIXUPDEF_CALL(void, local_flush_tlb_all, void) -BTFIXUPDEF_CALL(void, local_flush_tlb_mm, struct mm_struct *) -BTFIXUPDEF_CALL(void, local_flush_tlb_range, struct vm_area_struct *, unsigned long, unsigned long) -BTFIXUPDEF_CALL(void, local_flush_tlb_page, struct vm_area_struct *, unsigned long) - -#define local_flush_tlb_all() BTFIXUP_CALL(local_flush_tlb_all)() -#define local_flush_tlb_mm(mm) BTFIXUP_CALL(local_flush_tlb_mm)(mm) -#define local_flush_tlb_range(vma,start,end) BTFIXUP_CALL(local_flush_tlb_range)(vma,start,end) -#define local_flush_tlb_page(vma,addr) BTFIXUP_CALL(local_flush_tlb_page)(vma,addr) - -extern void smp_flush_tlb_all(void); -extern void smp_flush_tlb_mm(struct mm_struct *mm); -extern void smp_flush_tlb_range(struct vm_area_struct *vma, - unsigned long start, - unsigned long end); -extern void smp_flush_tlb_page(struct vm_area_struct *mm, unsigned long page); - -#endif /* CONFIG_SMP */ - -BTFIXUPDEF_CALL(void, flush_tlb_all, void) -BTFIXUPDEF_CALL(void, flush_tlb_mm, struct mm_struct *) -BTFIXUPDEF_CALL(void, flush_tlb_range, struct vm_area_struct *, unsigned long, unsigned long) -BTFIXUPDEF_CALL(void, flush_tlb_page, struct vm_area_struct *, unsigned long) - -#define flush_tlb_all() BTFIXUP_CALL(flush_tlb_all)() -#define flush_tlb_mm(mm) BTFIXUP_CALL(flush_tlb_mm)(mm) -#define flush_tlb_range(vma,start,end) BTFIXUP_CALL(flush_tlb_range)(vma,start,end) -#define flush_tlb_page(vma,addr) BTFIXUP_CALL(flush_tlb_page)(vma,addr) - -// #define flush_tlb() flush_tlb_mm(current->active_mm) /* XXX Sure? */ +#define flush_tlb_all() \ + sparc32_cachetlb_ops->tlb_all() +#define flush_tlb_mm(mm) \ + sparc32_cachetlb_ops->tlb_mm(mm) +#define flush_tlb_range(vma, start, end) \ + sparc32_cachetlb_ops->tlb_range(vma, start, end) +#define flush_tlb_page(vma, addr) \ + sparc32_cachetlb_ops->tlb_page(vma, addr) /* * This is a kludge, until I know better. --zaitcev XXX diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h index 8303ac48103..d50c310f5d3 100644 --- a/arch/sparc/include/asm/uaccess_32.h +++ b/arch/sparc/include/asm/uaccess_32.h @@ -12,7 +12,6 @@ #include <linux/sched.h> #include <linux/string.h> #include <linux/errno.h> -#include <asm/vac-ops.h> #endif #ifndef __ASSEMBLY__ diff --git a/arch/sparc/include/asm/vac-ops.h b/arch/sparc/include/asm/vac-ops.h deleted file mode 100644 index a63e88ef042..00000000000 --- a/arch/sparc/include/asm/vac-ops.h +++ /dev/null @@ -1,127 +0,0 @@ -#ifndef _SPARC_VAC_OPS_H -#define _SPARC_VAC_OPS_H - -/* vac-ops.h: Inline assembly routines to do operations on the Sparc - * VAC (virtual address cache) for the sun4c. - * - * Copyright (C) 1994, David S. Miller (davem@caip.rutgers.edu) - */ - -#include <asm/sysen.h> -#include <asm/contregs.h> -#include <asm/asi.h> - -/* The SUN4C models have a virtually addressed write-through - * cache. - * - * The cache tags are directly accessible through an ASI and - * each have the form: - * - * ------------------------------------------------------------ - * | MBZ | CONTEXT | WRITE | PRIV | VALID | MBZ | TagID | MBZ | - * ------------------------------------------------------------ - * 31 25 24 22 21 20 19 18 16 15 2 1 0 - * - * MBZ: These bits are either unused and/or reserved and should - * be written as zeroes. - * - * CONTEXT: Records the context to which this cache line belongs. - * - * WRITE: A copy of the writable bit from the mmu pte access bits. - * - * PRIV: A copy of the privileged bit from the pte access bits. - * - * VALID: If set, this line is valid, else invalid. - * - * TagID: Fourteen bits of tag ID. - * - * Every virtual address is seen by the cache like this: - * - * ---------------------------------------- - * | RESV | TagID | LINE | BYTE-in-LINE | - * ---------------------------------------- - * 31 30 29 16 15 4 3 0 - * - * RESV: Unused/reserved. - * - * TagID: Used to match the Tag-ID in that vac tags. - * - * LINE: Which line within the cache - * - * BYTE-in-LINE: Which byte within the cache line. - */ - -/* Sun4c VAC Tags */ -#define S4CVACTAG_CID 0x01c00000 -#define S4CVACTAG_W 0x00200000 -#define S4CVACTAG_P 0x00100000 -#define S4CVACTAG_V 0x00080000 -#define S4CVACTAG_TID 0x0000fffc - -/* Sun4c VAC Virtual Address */ -/* These aren't used, why bother? (Anton) */ -#if 0 -#define S4CVACVA_TID 0x3fff0000 -#define S4CVACVA_LINE 0x0000fff0 -#define S4CVACVA_BIL 0x0000000f -#endif - -/* The indexing of cache lines creates a problem. Because the line - * field of a virtual address extends past the page offset within - * the virtual address it is possible to have what are called - * 'bad aliases' which will create inconsistencies. So we must make - * sure that within a context that if a physical page is mapped - * more than once, that 'extra' line bits are the same. If this is - * not the case, and thus is a 'bad alias' we must turn off the - * cacheable bit in the pte's of all such pages. - */ - -#define S4CVAC_BADBITS 0x0000f000 - -/* The following is true if vaddr1 and vaddr2 would cause - * a 'bad alias'. - */ -#define S4CVAC_BADALIAS(vaddr1, vaddr2) \ - ((((unsigned long) (vaddr1)) ^ ((unsigned long) (vaddr2))) & \ - (S4CVAC_BADBITS)) - -/* The following structure describes the characteristics of a sun4c - * VAC as probed from the prom during boot time. - */ -struct sun4c_vac_props { - unsigned int num_bytes; /* Size of the cache */ - unsigned int do_hwflushes; /* Hardware flushing available? */ - unsigned int linesize; /* Size of each line in bytes */ - unsigned int log2lsize; /* log2(linesize) */ - unsigned int on; /* VAC is enabled */ -}; - -extern struct sun4c_vac_props sun4c_vacinfo; - -/* sun4c_enable_vac() enables the sun4c virtual address cache. */ -static inline void sun4c_enable_vac(void) -{ - __asm__ __volatile__("lduba [%0] %1, %%g1\n\t" - "or %%g1, %2, %%g1\n\t" - "stba %%g1, [%0] %1\n\t" - : /* no outputs */ - : "r" ((unsigned int) AC_SENABLE), - "i" (ASI_CONTROL), "i" (SENABLE_CACHE) - : "g1", "memory"); - sun4c_vacinfo.on = 1; -} - -/* sun4c_disable_vac() disables the virtual address cache. */ -static inline void sun4c_disable_vac(void) -{ - __asm__ __volatile__("lduba [%0] %1, %%g1\n\t" - "andn %%g1, %2, %%g1\n\t" - "stba %%g1, [%0] %1\n\t" - : /* no outputs */ - : "r" ((unsigned int) AC_SENABLE), - "i" (ASI_CONTROL), "i" (SENABLE_CACHE) - : "g1", "memory"); - sun4c_vacinfo.on = 0; -} - -#endif /* !(_SPARC_VAC_OPS_H) */ diff --git a/arch/sparc/include/asm/vaddrs.h b/arch/sparc/include/asm/vaddrs.h index 541e13755ce..da6535d88a7 100644 --- a/arch/sparc/include/asm/vaddrs.h +++ b/arch/sparc/include/asm/vaddrs.h @@ -34,22 +34,6 @@ #define IOBASE_VADDR 0xfe000000 #define IOBASE_END 0xfe600000 -/* - * On the sun4/4c we need a place - * to reliably map locked down kernel data. This includes the - * task_struct and kernel stack pages of each process plus the - * scsi buffers during dvma IO transfers, also the floppy buffers - * during pseudo dma which runs with traps off (no faults allowed). - * Some quick calculations yield: - * NR_TASKS <512> * (3 * PAGE_SIZE) == 0x600000 - * Subtract this from 0xc00000 and you get 0x927C0 of vm left - * over to map SCSI dvma + floppy pseudo-dma buffers. So be - * careful if you change NR_TASKS or else there won't be enough - * room for it all. - */ -#define SUN4C_LOCK_VADDR 0xff000000 -#define SUN4C_LOCK_END 0xffc00000 - #define KADB_DEBUGGER_BEGVM 0xffc00000 /* Where kern debugger is in virt-mem */ #define KADB_DEBUGGER_ENDVM 0xffd00000 #define DEBUG_FIRSTVADDR KADB_DEBUGGER_BEGVM diff --git a/arch/sparc/include/asm/winmacro.h b/arch/sparc/include/asm/winmacro.h index a9be04b0d04..9b7b21764cd 100644 --- a/arch/sparc/include/asm/winmacro.h +++ b/arch/sparc/include/asm/winmacro.h @@ -103,37 +103,24 @@ st %scratch, [%cur_reg + TI_W_SAVED]; #ifdef CONFIG_SMP -/* Results of LOAD_CURRENT() after BTFIXUP for SUN4M, SUN4D & LEON (comments) */ -#define LOAD_CURRENT4M(dest_reg, idreg) \ - rd %tbr, %idreg; \ - sethi %hi(current_set), %dest_reg; \ - srl %idreg, 10, %idreg; \ - or %dest_reg, %lo(current_set), %dest_reg; \ - and %idreg, 0xc, %idreg; \ - ld [%idreg + %dest_reg], %dest_reg; - -#define LOAD_CURRENT4D(dest_reg, idreg) \ - lda [%g0] ASI_M_VIKING_TMP1, %idreg; \ - sethi %hi(C_LABEL(current_set)), %dest_reg; \ - sll %idreg, 2, %idreg; \ - or %dest_reg, %lo(C_LABEL(current_set)), %dest_reg; \ - ld [%idreg + %dest_reg], %dest_reg; - -#define LOAD_CURRENT_LEON(dest_reg, idreg) \ - rd %asr17, %idreg; \ - sethi %hi(current_set), %dest_reg; \ - srl %idreg, 0x1c, %idreg; \ - or %dest_reg, %lo(current_set), %dest_reg; \ - sll %idreg, 0x2, %idreg; \ - ld [%idreg + %dest_reg], %dest_reg; - -/* Blackbox - take care with this... - check smp4m and smp4d before changing this. */ -#define LOAD_CURRENT(dest_reg, idreg) \ - sethi %hi(___b_load_current), %idreg; \ - sethi %hi(current_set), %dest_reg; \ - sethi %hi(boot_cpu_id4), %idreg; \ - or %dest_reg, %lo(current_set), %dest_reg; \ - ldub [%idreg + %lo(boot_cpu_id4)], %idreg; \ +#define LOAD_CURRENT(dest_reg, idreg) \ +661: rd %tbr, %idreg; \ + srl %idreg, 10, %idreg; \ + and %idreg, 0xc, %idreg; \ + .section .cpuid_patch, "ax"; \ + /* Instruction location. */ \ + .word 661b; \ + /* SUN4D implementation. */ \ + lda [%g0] ASI_M_VIKING_TMP1, %idreg; \ + sll %idreg, 2, %idreg; \ + nop; \ + /* LEON implementation. */ \ + rd %asr17, %idreg; \ + srl %idreg, 0x1c, %idreg; \ + sll %idreg, 0x02, %idreg; \ + .previous; \ + sethi %hi(current_set), %dest_reg; \ + or %dest_reg, %lo(current_set), %dest_reg;\ ld [%idreg + %dest_reg], %dest_reg; #else #define LOAD_CURRENT(dest_reg, idreg) \ diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile index cb85458f89d..72308f9b009 100644 --- a/arch/sparc/kernel/Makefile +++ b/arch/sparc/kernel/Makefile @@ -6,7 +6,6 @@ asflags-y := -ansi ccflags-y := -Werror extra-y := head_$(BITS).o -extra-y += init_task.o # Undefine sparc when processing vmlinux.lds - it is used # And teach CPP we are doing $(BITS) builds (for this case) @@ -28,7 +27,7 @@ obj-y += traps_$(BITS).o # IRQ obj-y += irq_$(BITS).o -obj-$(CONFIG_SPARC32) += sun4m_irq.o sun4c_irq.o sun4d_irq.o +obj-$(CONFIG_SPARC32) += sun4m_irq.o sun4d_irq.o obj-y += process_$(BITS).o obj-y += signal_$(BITS).o @@ -46,7 +45,6 @@ obj-$(CONFIG_SPARC32) += tadpole.o obj-y += ptrace_$(BITS).o obj-y += unaligned_$(BITS).o obj-y += una_asm_$(BITS).o -obj-$(CONFIG_SPARC32) += muldiv.o obj-y += prom_common.o obj-y += prom_$(BITS).o obj-y += of_device_common.o diff --git a/arch/sparc/kernel/auxio_32.c b/arch/sparc/kernel/auxio_32.c index 56d0f52c3e6..e20cc55fb76 100644 --- a/arch/sparc/kernel/auxio_32.c +++ b/arch/sparc/kernel/auxio_32.c @@ -32,7 +32,6 @@ void __init auxio_probe(void) switch (sparc_cpu_model) { case sparc_leon: case sun4d: - case sun4: return; default: break; @@ -65,9 +64,8 @@ void __init auxio_probe(void) r.start = auxregs[0].phys_addr; r.end = auxregs[0].phys_addr + auxregs[0].reg_size - 1; auxio_register = of_ioremap(&r, 0, auxregs[0].reg_size, "auxio"); - /* Fix the address on sun4m and sun4c. */ - if((((unsigned long) auxregs[0].phys_addr) & 3) == 3 || - sparc_cpu_model == sun4c) + /* Fix the address on sun4m. */ + if ((((unsigned long) auxregs[0].phys_addr) & 3) == 3) auxio_register += (3 - ((unsigned long)auxio_register & 3)); set_auxio(AUXIO_LED, 0); @@ -86,12 +84,7 @@ void set_auxio(unsigned char bits_on, unsigned char bits_off) unsigned char regval; unsigned long flags; spin_lock_irqsave(&auxio_lock, flags); - switch(sparc_cpu_model) { - case sun4c: - regval = sbus_readb(auxio_register); - sbus_writeb(((regval | bits_on) & ~bits_off) | AUXIO_ORMEIN, - auxio_register); - break; + switch (sparc_cpu_model) { case sun4m: if(!auxio_register) break; /* VME chassis sun4m, no auxio. */ diff --git a/arch/sparc/kernel/central.c b/arch/sparc/kernel/central.c index 38d48a59879..9708851a8b9 100644 --- a/arch/sparc/kernel/central.c +++ b/arch/sparc/kernel/central.c @@ -269,4 +269,4 @@ static int __init sunfire_init(void) return 0; } -subsys_initcall(sunfire_init); +fs_initcall(sunfire_init); diff --git a/arch/sparc/kernel/devices.c b/arch/sparc/kernel/devices.c index 6b2f56a6f8a..3d465e87f7e 100644 --- a/arch/sparc/kernel/devices.c +++ b/arch/sparc/kernel/devices.c @@ -21,7 +21,6 @@ #include <asm/cpu_type.h> extern void clock_stop_probe(void); /* tadpole.c */ -extern void sun4c_probe_memerr_reg(void); static char *cpu_mid_prop(void) { @@ -139,7 +138,4 @@ void __init device_scan(void) auxio_power_probe(); } clock_stop_probe(); - - if (ARCH_SUN4C) - sun4c_probe_memerr_reg(); } diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c index b93c2c9ccb1..f09257c8610 100644 --- a/arch/sparc/kernel/ds.c +++ b/arch/sparc/kernel/ds.c @@ -868,7 +868,7 @@ void ldom_power_off(void) static void ds_conn_reset(struct ds_info *dp) { - printk(KERN_ERR "ds-%llu: ds_conn_reset() from %p\n", + printk(KERN_ERR "ds-%llu: ds_conn_reset() from %pf\n", dp->id, __builtin_return_address(0)); } diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S index f445e98463e..2dbe1806e53 100644 --- a/arch/sparc/kernel/entry.S +++ b/arch/sparc/kernel/entry.S @@ -7,6 +7,7 @@ * Copyright (C) 1997 Anton Blanchard (anton@progsoc.uts.edu.au) */ +#include <linux/linkage.h> #include <linux/errno.h> #include <asm/head.h> @@ -17,10 +18,8 @@ #include <asm/asm-offsets.h> #include <asm/psr.h> #include <asm/vaddrs.h> -#include <asm/memreg.h> #include <asm/page.h> #include <asm/pgtable.h> -#include <asm/pgtsun4c.h> #include <asm/winmacro.h> #include <asm/signal.h> #include <asm/obio.h> @@ -125,22 +124,11 @@ floppy_tdone: set auxio_register, %l7 ld [%l7], %l7 - set sparc_cpu_model, %l5 - ld [%l5], %l5 - subcc %l5, 1, %g0 /* enum { sun4c = 1 }; */ - be 1f - ldub [%l7], %l5 + ldub [%l7], %l5 or %l5, 0xc2, %l5 stb %l5, [%l7] andn %l5, 0x02, %l5 - b 2f - nop - -1: - or %l5, 0xf4, %l5 - stb %l5, [%l7] - andn %l5, 0x04, %l5 2: /* Kill some time so the bits set */ @@ -266,6 +254,11 @@ smp4m_ticker: WRITE_PAUSE RESTORE_ALL +#define GET_PROCESSOR4M_ID(reg) \ + rd %tbr, %reg; \ + srl %reg, 12, %reg; \ + and %reg, 3, %reg; + /* Here is where we check for possible SMP IPI passed to us * on some level other than 15 which is the NMI and only used * for cross calls. That has a separate entry point below. @@ -328,7 +321,7 @@ linux_trap_ipi15_sun4m: ld [%o5 + %o0], %o5 ld [%o5 + 0x00], %o3 ! sun4m_irq_percpu[cpu]->pending andcc %o3, %o2, %g0 - be 1f ! Must be an NMI async memory error + be sun4m_nmi_error ! Must be an NMI async memory error st %o2, [%o5 + 0x04] ! sun4m_irq_percpu[cpu]->clear=0x80000000 WRITE_PAUSE ld [%o5 + 0x00], %g0 ! sun4m_irq_percpu[cpu]->pending @@ -342,27 +335,6 @@ linux_trap_ipi15_sun4m: nop b ret_trap_lockless_ipi clr %l6 -1: - /* NMI async memory error handling. */ - sethi %hi(0x80000000), %l4 - sethi %hi(sun4m_irq_global), %o5 - ld [%o5 + %lo(sun4m_irq_global)], %l5 - st %l4, [%l5 + 0x0c] ! sun4m_irq_global->mask_set=0x80000000 - WRITE_PAUSE - ld [%l5 + 0x00], %g0 ! sun4m_irq_global->pending - WRITE_PAUSE - or %l0, PSR_PIL, %l4 - wr %l4, 0x0, %psr - WRITE_PAUSE - wr %l4, PSR_ET, %psr - WRITE_PAUSE - call sun4m_nmi - nop - st %l4, [%l5 + 0x08] ! sun4m_irq_global->mask_clear=0x80000000 - WRITE_PAUSE - ld [%l5 + 0x00], %g0 ! sun4m_irq_global->pending - WRITE_PAUSE - RESTORE_ALL .globl smp4d_ticker /* SMP per-cpu ticker interrupts are handled specially. */ @@ -760,326 +732,37 @@ setcc_trap_handler: jmp %l2 ! advance over trap instruction rett %l2 + 0x4 ! like this... - .align 4 - .globl linux_trap_nmi_sun4c -linux_trap_nmi_sun4c: - SAVE_ALL - - /* Ugh, we need to clear the IRQ line. This is now - * a very sun4c specific trap handler... - */ - sethi %hi(interrupt_enable), %l5 - ld [%l5 + %lo(interrupt_enable)], %l5 - ldub [%l5], %l6 - andn %l6, INTS_ENAB, %l6 - stb %l6, [%l5] - - /* Now it is safe to re-enable traps without recursion. */ - or %l0, PSR_PIL, %l0 - wr %l0, PSR_ET, %psr +sun4m_nmi_error: + /* NMI async memory error handling. */ + sethi %hi(0x80000000), %l4 + sethi %hi(sun4m_irq_global), %o5 + ld [%o5 + %lo(sun4m_irq_global)], %l5 + st %l4, [%l5 + 0x0c] ! sun4m_irq_global->mask_set=0x80000000 WRITE_PAUSE - - /* Now call the c-code with the pt_regs frame ptr and the - * memory error registers as arguments. The ordering chosen - * here is due to unlatching semantics. - */ - sethi %hi(AC_SYNC_ERR), %o0 - add %o0, 0x4, %o0 - lda [%o0] ASI_CONTROL, %o2 ! sync vaddr - sub %o0, 0x4, %o0 - lda [%o0] ASI_CONTROL, %o1 ! sync error - add %o0, 0xc, %o0 - lda [%o0] ASI_CONTROL, %o4 ! async vaddr - sub %o0, 0x4, %o0 - lda [%o0] ASI_CONTROL, %o3 ! async error - call sparc_lvl15_nmi - add %sp, STACKFRAME_SZ, %o0 - - RESTORE_ALL - - .align 4 - .globl invalid_segment_patch1_ff - .globl invalid_segment_patch2_ff -invalid_segment_patch1_ff: cmp %l4, 0xff -invalid_segment_patch2_ff: mov 0xff, %l3 - - .align 4 - .globl invalid_segment_patch1_1ff - .globl invalid_segment_patch2_1ff -invalid_segment_patch1_1ff: cmp %l4, 0x1ff -invalid_segment_patch2_1ff: mov 0x1ff, %l3 - - .align 4 - .globl num_context_patch1_16, num_context_patch2_16 -num_context_patch1_16: mov 0x10, %l7 -num_context_patch2_16: mov 0x10, %l7 - - .align 4 - .globl vac_linesize_patch_32 -vac_linesize_patch_32: subcc %l7, 32, %l7 - - .align 4 - .globl vac_hwflush_patch1_on, vac_hwflush_patch2_on - -/* - * Ugly, but we can't use hardware flushing on the sun4 and we'd require - * two instructions (Anton) - */ -vac_hwflush_patch1_on: addcc %l7, -PAGE_SIZE, %l7 - -vac_hwflush_patch2_on: sta %g0, [%l3 + %l7] ASI_HWFLUSHSEG - - .globl invalid_segment_patch1, invalid_segment_patch2 - .globl num_context_patch1 - .globl vac_linesize_patch, vac_hwflush_patch1 - .globl vac_hwflush_patch2 - - .align 4 - .globl sun4c_fault - -! %l0 = %psr -! %l1 = %pc -! %l2 = %npc -! %l3 = %wim -! %l7 = 1 for textfault -! We want error in %l5, vaddr in %l6 -sun4c_fault: - sethi %hi(AC_SYNC_ERR), %l4 - add %l4, 0x4, %l6 ! AC_SYNC_VA in %l6 - lda [%l6] ASI_CONTROL, %l5 ! Address - lda [%l4] ASI_CONTROL, %l6 ! Error, retained for a bit - - andn %l5, 0xfff, %l5 ! Encode all info into l7 - srl %l6, 14, %l4 - - and %l4, 2, %l4 - or %l5, %l4, %l4 - - or %l4, %l7, %l7 ! l7 = [addr,write,txtfault] - - andcc %l0, PSR_PS, %g0 - be sun4c_fault_fromuser - andcc %l7, 1, %g0 ! Text fault? - - be 1f - sethi %hi(KERNBASE), %l4 - - mov %l1, %l5 ! PC - -1: - cmp %l5, %l4 - blu sun4c_fault_fromuser - sethi %hi(~((1 << SUN4C_REAL_PGDIR_SHIFT) - 1)), %l4 - - /* If the kernel references a bum kernel pointer, or a pte which - * points to a non existent page in ram, we will run this code - * _forever_ and lock up the machine!!!!! So we must check for - * this condition, the AC_SYNC_ERR bits are what we must examine. - * Also a parity error would make this happen as well. So we just - * check that we are in fact servicing a tlb miss and not some - * other type of fault for the kernel. - */ - andcc %l6, 0x80, %g0 - be sun4c_fault_fromuser - and %l5, %l4, %l5 - - /* Test for NULL pte_t * in vmalloc area. */ - sethi %hi(VMALLOC_START), %l4 - cmp %l5, %l4 - blu,a invalid_segment_patch1 - lduXa [%l5] ASI_SEGMAP, %l4 - - sethi %hi(swapper_pg_dir), %l4 - srl %l5, SUN4C_PGDIR_SHIFT, %l6 - or %l4, %lo(swapper_pg_dir), %l4 - sll %l6, 2, %l6 - ld [%l4 + %l6], %l4 - andcc %l4, PAGE_MASK, %g0 - be sun4c_fault_fromuser - lduXa [%l5] ASI_SEGMAP, %l4 - -invalid_segment_patch1: - cmp %l4, 0x7f - bne 1f - sethi %hi(sun4c_kfree_ring), %l4 - or %l4, %lo(sun4c_kfree_ring), %l4 - ld [%l4 + 0x18], %l3 - deccc %l3 ! do we have a free entry? - bcs,a 2f ! no, unmap one. - sethi %hi(sun4c_kernel_ring), %l4 - - st %l3, [%l4 + 0x18] ! sun4c_kfree_ring.num_entries-- - - ld [%l4 + 0x00], %l6 ! entry = sun4c_kfree_ring.ringhd.next - st %l5, [%l6 + 0x08] ! entry->vaddr = address - - ld [%l6 + 0x00], %l3 ! next = entry->next - ld [%l6 + 0x04], %l7 ! entry->prev - - st %l7, [%l3 + 0x04] ! next->prev = entry->prev - st %l3, [%l7 + 0x00] ! entry->prev->next = next - - sethi %hi(sun4c_kernel_ring), %l4 - or %l4, %lo(sun4c_kernel_ring), %l4 - ! head = &sun4c_kernel_ring.ringhd - - ld [%l4 + 0x00], %l7 ! head->next - - st %l4, [%l6 + 0x04] ! entry->prev = head - st %l7, [%l6 + 0x00] ! entry->next = head->next - st %l6, [%l7 + 0x04] ! head->next->prev = entry - - st %l6, [%l4 + 0x00] ! head->next = entry - - ld [%l4 + 0x18], %l3 - inc %l3 ! sun4c_kernel_ring.num_entries++ - st %l3, [%l4 + 0x18] - b 4f - ld [%l6 + 0x08], %l5 - -2: - or %l4, %lo(sun4c_kernel_ring), %l4 - ! head = &sun4c_kernel_ring.ringhd - - ld [%l4 + 0x04], %l6 ! entry = head->prev - - ld [%l6 + 0x08], %l3 ! tmp = entry->vaddr - - ! Flush segment from the cache. - sethi %hi((64 * 1024)), %l7 -9: -vac_hwflush_patch1: -vac_linesize_patch: - subcc %l7, 16, %l7 - bne 9b -vac_hwflush_patch2: - sta %g0, [%l3 + %l7] ASI_FLUSHSEG - - st %l5, [%l6 + 0x08] ! entry->vaddr = address - - ld [%l6 + 0x00], %l5 ! next = entry->next - ld [%l6 + 0x04], %l7 ! entry->prev - - st %l7, [%l5 + 0x04] ! next->prev = entry->prev - st %l5, [%l7 + 0x00] ! entry->prev->next = next - st %l4, [%l6 + 0x04] ! entry->prev = head - - ld [%l4 + 0x00], %l7 ! head->next - - st %l7, [%l6 + 0x00] ! entry->next = head->next - st %l6, [%l7 + 0x04] ! head->next->prev = entry - st %l6, [%l4 + 0x00] ! head->next = entry - - mov %l3, %l5 ! address = tmp - -4: -num_context_patch1: - mov 0x08, %l7 - - ld [%l6 + 0x08], %l4 - ldub [%l6 + 0x0c], %l3 - or %l4, %l3, %l4 ! encode new vaddr/pseg into l4 - - sethi %hi(AC_CONTEXT), %l3 - lduba [%l3] ASI_CONTROL, %l6 - - /* Invalidate old mapping, instantiate new mapping, - * for each context. Registers l6/l7 are live across - * this loop. - */ -3: deccc %l7 - sethi %hi(AC_CONTEXT), %l3 - stba %l7, [%l3] ASI_CONTROL -invalid_segment_patch2: - mov 0x7f, %l3 - stXa %l3, [%l5] ASI_SEGMAP - andn %l4, 0x1ff, %l3 - bne 3b - stXa %l4, [%l3] ASI_SEGMAP - - sethi %hi(AC_CONTEXT), %l3 - stba %l6, [%l3] ASI_CONTROL - - andn %l4, 0x1ff, %l5 - -1: - sethi %hi(VMALLOC_START), %l4 - cmp %l5, %l4 - - bgeu 1f - mov 1 << (SUN4C_REAL_PGDIR_SHIFT - PAGE_SHIFT), %l7 - - sethi %hi(KERNBASE), %l6 - - sub %l5, %l6, %l4 - srl %l4, PAGE_SHIFT, %l4 - sethi %hi((SUN4C_PAGE_KERNEL & 0xf4000000)), %l3 - or %l3, %l4, %l3 - - sethi %hi(PAGE_SIZE), %l4 - -2: - sta %l3, [%l5] ASI_PTE - deccc %l7 - inc %l3 - bne 2b - add %l5, %l4, %l5 - - b 7f - sethi %hi(sun4c_kernel_faults), %l4 - -1: - srl %l5, SUN4C_PGDIR_SHIFT, %l3 - sethi %hi(swapper_pg_dir), %l4 - or %l4, %lo(swapper_pg_dir), %l4 - sll %l3, 2, %l3 - ld [%l4 + %l3], %l4 - and %l4, PAGE_MASK, %l4 - - srl %l5, (PAGE_SHIFT - 2), %l6 - and %l6, ((SUN4C_PTRS_PER_PTE - 1) << 2), %l6 - add %l6, %l4, %l6 - - sethi %hi(PAGE_SIZE), %l4 - -2: - ld [%l6], %l3 - deccc %l7 - sta %l3, [%l5] ASI_PTE - add %l6, 0x4, %l6 - bne 2b - add %l5, %l4, %l5 - - sethi %hi(sun4c_kernel_faults), %l4 -7: - ld [%l4 + %lo(sun4c_kernel_faults)], %l3 - inc %l3 - st %l3, [%l4 + %lo(sun4c_kernel_faults)] - - /* Restore condition codes */ - wr %l0, 0x0, %psr + ld [%l5 + 0x00], %g0 ! sun4m_irq_global->pending WRITE_PAUSE - jmp %l1 - rett %l2 - -sun4c_fault_fromuser: - SAVE_ALL + or %l0, PSR_PIL, %l4 + wr %l4, 0x0, %psr + WRITE_PAUSE + wr %l4, PSR_ET, %psr + WRITE_PAUSE + call sun4m_nmi nop - - mov %l7, %o1 ! Decode the info from %l7 - mov %l7, %o2 - and %o1, 1, %o1 ! arg2 = text_faultp - mov %l7, %o3 - and %o2, 2, %o2 ! arg3 = writep - andn %o3, 0xfff, %o3 ! arg4 = faulting address - - wr %l0, PSR_ET, %psr + st %l4, [%l5 + 0x08] ! sun4m_irq_global->mask_clear=0x80000000 + WRITE_PAUSE + ld [%l5 + 0x00], %g0 ! sun4m_irq_global->pending WRITE_PAUSE + RESTORE_ALL - call do_sun4c_fault - add %sp, STACKFRAME_SZ, %o0 ! arg1 = pt_regs ptr +#ifndef CONFIG_SMP + .align 4 + .globl linux_trap_ipi15_sun4m +linux_trap_ipi15_sun4m: + SAVE_ALL - RESTORE_ALL + ba sun4m_nmi_error + nop +#endif /* CONFIG_SMP */ .align 4 .globl srmmu_fault @@ -1483,11 +1166,13 @@ fpload: .globl __ndelay __ndelay: save %sp, -STACKFRAME_SZ, %sp - mov %i0, %o0 - call .umul ! round multiplier up so large ns ok - mov 0x1ae, %o1 ! 2**32 / (1 000 000 000 / HZ) - call .umul - mov %i1, %o1 ! udelay_val + mov %i0, %o0 ! round multiplier up so large ns ok + mov 0x1ae, %o1 ! 2**32 / (1 000 000 000 / HZ) + umul %o0, %o1, %o0 + rd %y, %o1 + mov %i1, %o1 ! udelay_val + umul %o0, %o1, %o0 + rd %y, %o1 ba delay_continue mov %o1, %o0 ! >>32 later for better resolution @@ -1496,18 +1181,21 @@ __udelay: save %sp, -STACKFRAME_SZ, %sp mov %i0, %o0 sethi %hi(0x10c7), %o1 ! round multiplier up so large us ok - call .umul - or %o1, %lo(0x10c7), %o1 ! 2**32 / 1 000 000 - call .umul - mov %i1, %o1 ! udelay_val + or %o1, %lo(0x10c7), %o1 ! 2**32 / 1 000 000 + umul %o0, %o1, %o0 + rd %y, %o1 + mov %i1, %o1 ! udelay_val + umul %o0, %o1, %o0 + rd %y, %o1 sethi %hi(0x028f4b62), %l0 ! Add in rounding constant * 2**32, or %g0, %lo(0x028f4b62), %l0 addcc %o0, %l0, %o0 ! 2**32 * 0.009 999 bcs,a 3f add %o1, 0x01, %o1 3: - call .umul - mov HZ, %o0 ! >>32 earlier for wider range + mov HZ, %o0 ! >>32 earlier for wider range + umul %o0, %o1, %o0 + rd %y, %o1 delay_continue: cmp %o0, 0x0 @@ -1670,4 +1358,26 @@ flushw_all: ret restore +#ifdef CONFIG_SMP +ENTRY(hard_smp_processor_id) +661: rd %tbr, %g1 + srl %g1, 12, %o0 + and %o0, 3, %o0 + .section .cpuid_patch, "ax" + /* Instruction location. */ + .word 661b + /* SUN4D implementation. */ + lda [%g0] ASI_M_VIKING_TMP1, %o0 + nop + nop + /* LEON implementation. */ + rd %asr17, %o0 + srl %o0, 0x1c, %o0 + nop + .previous + retl + nop +ENDPROC(hard_smp_processor_id) +#endif + /* End of entry.S */ diff --git a/arch/sparc/kernel/etrap_32.S b/arch/sparc/kernel/etrap_32.S index e806fcdc46d..84b5f0d2afd 100644 --- a/arch/sparc/kernel/etrap_32.S +++ b/arch/sparc/kernel/etrap_32.S @@ -216,9 +216,7 @@ tsetup_patch6: /* Call MMU-architecture dependent stack checking * routine. */ - .globl tsetup_mmu_patchme -tsetup_mmu_patchme: - b tsetup_sun4c_stackchk + b tsetup_srmmu_stackchk andcc %sp, 0x7, %g0 /* Architecture specific stack checking routines. When either @@ -228,52 +226,6 @@ tsetup_mmu_patchme: */ #define glob_tmp g1 -tsetup_sun4c_stackchk: - /* Done by caller: andcc %sp, 0x7, %g0 */ - bne trap_setup_user_stack_is_bolixed - sra %sp, 29, %glob_tmp - - add %glob_tmp, 0x1, %glob_tmp - andncc %glob_tmp, 0x1, %g0 - bne trap_setup_user_stack_is_bolixed - and %sp, 0xfff, %glob_tmp ! delay slot - - /* See if our dump area will be on more than one - * page. - */ - add %glob_tmp, 0x38, %glob_tmp - andncc %glob_tmp, 0xff8, %g0 - be tsetup_sun4c_onepage ! only one page to check - lda [%sp] ASI_PTE, %glob_tmp ! have to check first page anyways - -tsetup_sun4c_twopages: - /* Is first page ok permission wise? */ - srl %glob_tmp, 29, %glob_tmp - cmp %glob_tmp, 0x6 - bne trap_setup_user_stack_is_bolixed - add %sp, 0x38, %glob_tmp /* Is second page in vma hole? */ - - sra %glob_tmp, 29, %glob_tmp - add %glob_tmp, 0x1, %glob_tmp - andncc %glob_tmp, 0x1, %g0 - bne trap_setup_user_stack_is_bolixed - add %sp, 0x38, %glob_tmp - - lda [%glob_tmp] ASI_PTE, %glob_tmp - -tsetup_sun4c_onepage: - srl %glob_tmp, 29, %glob_tmp - cmp %glob_tmp, 0x6 ! can user write to it? - bne trap_setup_user_stack_is_bolixed ! failure - nop - - STORE_WINDOW(sp) - - restore %g0, %g0, %g0 - - jmpl %t_retpc + 0x8, %g0 - mov %t_kstack, %sp - .globl tsetup_srmmu_stackchk tsetup_srmmu_stackchk: /* Check results of callers andcc %sp, 0x7, %g0 */ diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S index 58778575983..a0f5c20e4b9 100644 --- a/arch/sparc/kernel/head_32.S +++ b/arch/sparc/kernel/head_32.S @@ -26,11 +26,9 @@ #include <asm/pgtsrmmu.h> /* SRMMU_PGDIR_SHIFT */ .data -/* - * The following are used with the prom_vector node-ops to figure out - * the cpu-type +/* The following are used with the prom_vector node-ops to figure out + * the cpu-type */ - .align 4 cputyp: .word 1 @@ -38,384 +36,35 @@ cputyp: .align 4 .globl cputypval cputypval: - .asciz "sun4c" + .asciz "sun4m" .ascii " " -cputypvalend: -cputypvallen = cputypvar - cputypval - +/* Tested on SS-5, SS-10 */ .align 4 -/* - * Sun people can't spell worth damn. "compatability" indeed. - * At least we *know* we can't spell, and use a spell-checker. - */ - -/* Uh, actually Linus it is I who cannot spell. Too much murky - * Sparc assembly will do this to ya. - */ cputypvar: - .asciz "compatability" - -/* Tested on SS-5, SS-10. Probably someone at Sun applied a spell-checker. */ - .align 4 -cputypvar_sun4m: .asciz "compatible" .align 4 -sun4_notsup: - .asciz "Sparc-Linux sun4 support does no longer exist.\n\n" +sun4c_notsup: + .asciz "Sparc-Linux sun4/sun4c support does no longer exist.\n\n" .align 4 sun4e_notsup: .asciz "Sparc-Linux sun4e support does not exist\n\n" .align 4 - /* The Sparc trap table, bootloader gives us control at _start. */ - __HEAD - .globl _stext, _start, __stext - .globl trapbase -_start: /* danger danger */ -__stext: -_stext: -trapbase: -#ifdef CONFIG_SMP -trapbase_cpu0: -#endif -/* We get control passed to us here at t_zero. */ -t_zero: b gokernel; nop; nop; nop; -t_tflt: SPARC_TFAULT /* Inst. Access Exception */ -t_bins: TRAP_ENTRY(0x2, bad_instruction) /* Illegal Instruction */ -t_pins: TRAP_ENTRY(0x3, priv_instruction) /* Privileged Instruction */ -t_fpd: TRAP_ENTRY(0x4, fpd_trap_handler) /* Floating Point Disabled */ -t_wovf: WINDOW_SPILL /* Window Overflow */ -t_wunf: WINDOW_FILL /* Window Underflow */ -t_mna: TRAP_ENTRY(0x7, mna_handler) /* Memory Address Not Aligned */ -t_fpe: TRAP_ENTRY(0x8, fpe_trap_handler) /* Floating Point Exception */ -t_dflt: SPARC_DFAULT /* Data Miss Exception */ -t_tio: TRAP_ENTRY(0xa, do_tag_overflow) /* Tagged Instruction Ovrflw */ -t_wpt: TRAP_ENTRY(0xb, do_watchpoint) /* Watchpoint Detected */ -t_badc: BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10) -t_irq1: TRAP_ENTRY_INTERRUPT(1) /* IRQ Software/SBUS Level 1 */ -t_irq2: TRAP_ENTRY_INTERRUPT(2) /* IRQ SBUS Level 2 */ -t_irq3: TRAP_ENTRY_INTERRUPT(3) /* IRQ SCSI/DMA/SBUS Level 3 */ -t_irq4: TRAP_ENTRY_INTERRUPT(4) /* IRQ Software Level 4 */ -t_irq5: TRAP_ENTRY_INTERRUPT(5) /* IRQ SBUS/Ethernet Level 5 */ -t_irq6: TRAP_ENTRY_INTERRUPT(6) /* IRQ Software Level 6 */ -t_irq7: TRAP_ENTRY_INTERRUPT(7) /* IRQ Video/SBUS Level 5 */ -t_irq8: TRAP_ENTRY_INTERRUPT(8) /* IRQ SBUS Level 6 */ -t_irq9: TRAP_ENTRY_INTERRUPT(9) /* IRQ SBUS Level 7 */ -t_irq10:TRAP_ENTRY_INTERRUPT(10) /* IRQ Timer #1 (one we use) */ -t_irq11:TRAP_ENTRY_INTERRUPT(11) /* IRQ Floppy Intr. */ -t_irq12:TRAP_ENTRY_INTERRUPT(12) /* IRQ Zilog serial chip */ -t_irq13:TRAP_ENTRY_INTERRUPT(13) /* IRQ Audio Intr. */ -t_irq14:TRAP_ENTRY_INTERRUPT(14) /* IRQ Timer #2 */ - .globl t_nmi -#ifndef CONFIG_SMP -t_nmi: NMI_TRAP /* Level 15 (NMI) */ -#else -t_nmi: TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m) -#endif -t_racc: TRAP_ENTRY(0x20, do_reg_access) /* General Register Access Error */ -t_iacce:BAD_TRAP(0x21) /* Instr Access Error */ -t_bad22:BAD_TRAP(0x22) BAD_TRAP(0x23) -t_cpdis:TRAP_ENTRY(0x24, do_cp_disabled) /* Co-Processor Disabled */ -t_uflsh:SKIP_TRAP(0x25, unimp_flush) /* Unimplemented FLUSH inst. */ -t_bad26:BAD_TRAP(0x26) BAD_TRAP(0x27) -t_cpexc:TRAP_ENTRY(0x28, do_cp_exception) /* Co-Processor Exception */ -t_dacce:SPARC_DFAULT /* Data Access Error */ -t_hwdz: TRAP_ENTRY(0x2a, do_hw_divzero) /* Division by zero, you lose... */ -t_dserr:BAD_TRAP(0x2b) /* Data Store Error */ -t_daccm:BAD_TRAP(0x2c) /* Data Access MMU-Miss */ -t_bad2d:BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31) -t_bad32:BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36) -t_bad37:BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b) -t_iaccm:BAD_TRAP(0x3c) /* Instr Access MMU-Miss */ -t_bad3d:BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) BAD_TRAP(0x41) -t_bad42:BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) BAD_TRAP(0x46) -t_bad47:BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) BAD_TRAP(0x4b) -t_bad4c:BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) BAD_TRAP(0x50) -t_bad51:BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55) -t_bad56:BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a) -t_bad5b:BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f) -t_bad60:BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64) -t_bad65:BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69) -t_bad6a:BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e) -t_bad6f:BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73) -t_bad74:BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78) -t_bad79:BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d) -t_bad7e:BAD_TRAP(0x7e) BAD_TRAP(0x7f) -t_bad80:BAD_TRAP(0x80) /* SunOS System Call */ -t_sbkpt:BREAKPOINT_TRAP /* Software Breakpoint/KGDB */ -t_divz: TRAP_ENTRY(0x82, do_hw_divzero) /* Divide by zero trap */ -t_flwin:TRAP_ENTRY(0x83, do_flush_windows) /* Flush Windows Trap */ -t_clwin:BAD_TRAP(0x84) /* Clean Windows Trap */ -t_rchk: BAD_TRAP(0x85) /* Range Check */ -t_funal:BAD_TRAP(0x86) /* Fix Unaligned Access Trap */ -t_iovf: BAD_TRAP(0x87) /* Integer Overflow Trap */ -t_bad88:BAD_TRAP(0x88) /* Slowaris System Call */ -t_bad89:BAD_TRAP(0x89) /* Net-B.S. System Call */ -t_bad8a:BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) BAD_TRAP(0x8d) BAD_TRAP(0x8e) -t_bad8f:BAD_TRAP(0x8f) -t_linux:LINUX_SYSCALL_TRAP /* Linux System Call */ -t_bad91:BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) BAD_TRAP(0x95) -t_bad96:BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) BAD_TRAP(0x9a) -t_bad9b:BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) BAD_TRAP(0x9f) -t_getcc:GETCC_TRAP /* Get Condition Codes */ -t_setcc:SETCC_TRAP /* Set Condition Codes */ -t_getpsr:GETPSR_TRAP /* Get PSR Register */ -t_bada3:BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6) -t_bada7:BAD_TRAP(0xa7) -t_bada8:BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab) -t_badac:BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0) -t_badb1:BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5) -t_badb6:BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba) -t_badbb:BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf) -t_badc0:BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4) -t_badc5:BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9) -t_badca:BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce) -t_badcf:BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3) -t_badd4:BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8) -t_badd9:BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd) -t_badde:BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2) -t_bade3:BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7) -t_bade8:BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec) -t_baded:BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1) -t_badf2:BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6) -t_badf7:BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb) -t_badfc:BAD_TRAP(0xfc) -t_kgdb: KGDB_TRAP(0xfd) -dbtrap: BAD_TRAP(0xfe) /* Debugger/PROM breakpoint #1 */ -dbtrap2:BAD_TRAP(0xff) /* Debugger/PROM breakpoint #2 */ - - .globl end_traptable -end_traptable: - -#ifdef CONFIG_SMP - /* Trap tables for the other cpus. */ - .globl trapbase_cpu1, trapbase_cpu2, trapbase_cpu3 -trapbase_cpu1: - BAD_TRAP(0x0) SRMMU_TFAULT TRAP_ENTRY(0x2, bad_instruction) - TRAP_ENTRY(0x3, priv_instruction) TRAP_ENTRY(0x4, fpd_trap_handler) - WINDOW_SPILL WINDOW_FILL TRAP_ENTRY(0x7, mna_handler) - TRAP_ENTRY(0x8, fpe_trap_handler) SRMMU_DFAULT - TRAP_ENTRY(0xa, do_tag_overflow) TRAP_ENTRY(0xb, do_watchpoint) - BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10) - TRAP_ENTRY_INTERRUPT(1) TRAP_ENTRY_INTERRUPT(2) - TRAP_ENTRY_INTERRUPT(3) TRAP_ENTRY_INTERRUPT(4) - TRAP_ENTRY_INTERRUPT(5) TRAP_ENTRY_INTERRUPT(6) - TRAP_ENTRY_INTERRUPT(7) TRAP_ENTRY_INTERRUPT(8) - TRAP_ENTRY_INTERRUPT(9) TRAP_ENTRY_INTERRUPT(10) - TRAP_ENTRY_INTERRUPT(11) TRAP_ENTRY_INTERRUPT(12) - TRAP_ENTRY_INTERRUPT(13) TRAP_ENTRY_INTERRUPT(14) - TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m) - TRAP_ENTRY(0x20, do_reg_access) BAD_TRAP(0x21) BAD_TRAP(0x22) - BAD_TRAP(0x23) TRAP_ENTRY(0x24, do_cp_disabled) SKIP_TRAP(0x25, unimp_flush) - BAD_TRAP(0x26) BAD_TRAP(0x27) TRAP_ENTRY(0x28, do_cp_exception) - SRMMU_DFAULT TRAP_ENTRY(0x2a, do_hw_divzero) BAD_TRAP(0x2b) BAD_TRAP(0x2c) - BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31) - BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36) - BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b) - BAD_TRAP(0x3c) BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) - BAD_TRAP(0x41) BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) - BAD_TRAP(0x46) BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) - BAD_TRAP(0x4b) BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) - BAD_TRAP(0x50) - BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55) - BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a) - BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f) - BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64) - BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69) - BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e) - BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73) - BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78) - BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d) - BAD_TRAP(0x7e) BAD_TRAP(0x7f) - BAD_TRAP(0x80) - BREAKPOINT_TRAP - TRAP_ENTRY(0x82, do_hw_divzero) - TRAP_ENTRY(0x83, do_flush_windows) BAD_TRAP(0x84) BAD_TRAP(0x85) - BAD_TRAP(0x86) BAD_TRAP(0x87) BAD_TRAP(0x88) - BAD_TRAP(0x89) BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) - BAD_TRAP(0x8d) BAD_TRAP(0x8e) BAD_TRAP(0x8f) - LINUX_SYSCALL_TRAP BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) - BAD_TRAP(0x95) BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) - BAD_TRAP(0x9a) BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) - BAD_TRAP(0x9f) GETCC_TRAP SETCC_TRAP GETPSR_TRAP - BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6) - BAD_TRAP(0xa7) BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab) - BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0) - BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5) - BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba) - BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf) - BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4) - BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9) - BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce) - BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3) - BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8) - BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd) - BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2) - BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7) - BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec) - BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1) - BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6) - BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb) - BAD_TRAP(0xfc) KGDB_TRAP(0xfd) BAD_TRAP(0xfe) BAD_TRAP(0xff) - -trapbase_cpu2: - BAD_TRAP(0x0) SRMMU_TFAULT TRAP_ENTRY(0x2, bad_instruction) - TRAP_ENTRY(0x3, priv_instruction) TRAP_ENTRY(0x4, fpd_trap_handler) - WINDOW_SPILL WINDOW_FILL TRAP_ENTRY(0x7, mna_handler) - TRAP_ENTRY(0x8, fpe_trap_handler) SRMMU_DFAULT - TRAP_ENTRY(0xa, do_tag_overflow) TRAP_ENTRY(0xb, do_watchpoint) - BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10) - TRAP_ENTRY_INTERRUPT(1) TRAP_ENTRY_INTERRUPT(2) - TRAP_ENTRY_INTERRUPT(3) TRAP_ENTRY_INTERRUPT(4) - TRAP_ENTRY_INTERRUPT(5) TRAP_ENTRY_INTERRUPT(6) - TRAP_ENTRY_INTERRUPT(7) TRAP_ENTRY_INTERRUPT(8) - TRAP_ENTRY_INTERRUPT(9) TRAP_ENTRY_INTERRUPT(10) - TRAP_ENTRY_INTERRUPT(11) TRAP_ENTRY_INTERRUPT(12) - TRAP_ENTRY_INTERRUPT(13) TRAP_ENTRY_INTERRUPT(14) - TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m) - TRAP_ENTRY(0x20, do_reg_access) BAD_TRAP(0x21) BAD_TRAP(0x22) - BAD_TRAP(0x23) TRAP_ENTRY(0x24, do_cp_disabled) SKIP_TRAP(0x25, unimp_flush) - BAD_TRAP(0x26) BAD_TRAP(0x27) TRAP_ENTRY(0x28, do_cp_exception) - SRMMU_DFAULT TRAP_ENTRY(0x2a, do_hw_divzero) BAD_TRAP(0x2b) BAD_TRAP(0x2c) - BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31) - BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36) - BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b) - BAD_TRAP(0x3c) BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) - BAD_TRAP(0x41) BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) - BAD_TRAP(0x46) BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) - BAD_TRAP(0x4b) BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) - BAD_TRAP(0x50) - BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55) - BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a) - BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f) - BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64) - BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69) - BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e) - BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73) - BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78) - BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d) - BAD_TRAP(0x7e) BAD_TRAP(0x7f) - BAD_TRAP(0x80) - BREAKPOINT_TRAP - TRAP_ENTRY(0x82, do_hw_divzero) - TRAP_ENTRY(0x83, do_flush_windows) BAD_TRAP(0x84) BAD_TRAP(0x85) - BAD_TRAP(0x86) BAD_TRAP(0x87) BAD_TRAP(0x88) - BAD_TRAP(0x89) BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) - BAD_TRAP(0x8d) BAD_TRAP(0x8e) BAD_TRAP(0x8f) - LINUX_SYSCALL_TRAP BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) - BAD_TRAP(0x95) BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) - BAD_TRAP(0x9a) BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) - BAD_TRAP(0x9f) GETCC_TRAP SETCC_TRAP GETPSR_TRAP - BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6) - BAD_TRAP(0xa7) BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab) - BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0) - BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5) - BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba) - BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf) - BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4) - BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9) - BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce) - BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3) - BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8) - BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd) - BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2) - BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7) - BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec) - BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1) - BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6) - BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb) - BAD_TRAP(0xfc) KGDB_TRAP(0xfd) BAD_TRAP(0xfe) BAD_TRAP(0xff) - -trapbase_cpu3: - BAD_TRAP(0x0) SRMMU_TFAULT TRAP_ENTRY(0x2, bad_instruction) - TRAP_ENTRY(0x3, priv_instruction) TRAP_ENTRY(0x4, fpd_trap_handler) - WINDOW_SPILL WINDOW_FILL TRAP_ENTRY(0x7, mna_handler) - TRAP_ENTRY(0x8, fpe_trap_handler) SRMMU_DFAULT - TRAP_ENTRY(0xa, do_tag_overflow) TRAP_ENTRY(0xb, do_watchpoint) - BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10) - TRAP_ENTRY_INTERRUPT(1) TRAP_ENTRY_INTERRUPT(2) - TRAP_ENTRY_INTERRUPT(3) TRAP_ENTRY_INTERRUPT(4) - TRAP_ENTRY_INTERRUPT(5) TRAP_ENTRY_INTERRUPT(6) - TRAP_ENTRY_INTERRUPT(7) TRAP_ENTRY_INTERRUPT(8) - TRAP_ENTRY_INTERRUPT(9) TRAP_ENTRY_INTERRUPT(10) - TRAP_ENTRY_INTERRUPT(11) TRAP_ENTRY_INTERRUPT(12) - TRAP_ENTRY_INTERRUPT(13) TRAP_ENTRY_INTERRUPT(14) - TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m) - TRAP_ENTRY(0x20, do_reg_access) BAD_TRAP(0x21) BAD_TRAP(0x22) - BAD_TRAP(0x23) TRAP_ENTRY(0x24, do_cp_disabled) SKIP_TRAP(0x25, unimp_flush) - BAD_TRAP(0x26) BAD_TRAP(0x27) TRAP_ENTRY(0x28, do_cp_exception) - SRMMU_DFAULT TRAP_ENTRY(0x2a, do_hw_divzero) BAD_TRAP(0x2b) BAD_TRAP(0x2c) - BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31) - BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36) - BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b) - BAD_TRAP(0x3c) BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) - BAD_TRAP(0x41) BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) - BAD_TRAP(0x46) BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) - BAD_TRAP(0x4b) BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) - BAD_TRAP(0x50) - BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55) - BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a) - BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f) - BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64) - BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69) - BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e) - BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73) - BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78) - BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d) - BAD_TRAP(0x7e) BAD_TRAP(0x7f) - BAD_TRAP(0x80) - BREAKPOINT_TRAP - TRAP_ENTRY(0x82, do_hw_divzero) - TRAP_ENTRY(0x83, do_flush_windows) BAD_TRAP(0x84) BAD_TRAP(0x85) - BAD_TRAP(0x86) BAD_TRAP(0x87) BAD_TRAP(0x88) - BAD_TRAP(0x89) BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) - BAD_TRAP(0x8d) BAD_TRAP(0x8e) BAD_TRAP(0x8f) - LINUX_SYSCALL_TRAP BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) - BAD_TRAP(0x95) BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) - BAD_TRAP(0x9a) BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) - BAD_TRAP(0x9f) GETCC_TRAP SETCC_TRAP GETPSR_TRAP - BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6) - BAD_TRAP(0xa7) BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab) - BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0) - BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5) - BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba) - BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf) - BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4) - BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9) - BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce) - BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3) - BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8) - BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd) - BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2) - BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7) - BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec) - BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1) - BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6) - BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb) - BAD_TRAP(0xfc) KGDB_TRAP(0xfd) BAD_TRAP(0xfe) BAD_TRAP(0xff) +/* The trap-table - located in the __HEAD section */ +#include "ttable_32.S" -#endif .align PAGE_SIZE /* This was the only reasonable way I could think of to properly align * these page-table data structures. */ - .globl pg0, pg1, pg2, pg3 - .globl empty_bad_page - .globl empty_bad_page_table - .globl empty_zero_page .globl swapper_pg_dir swapper_pg_dir: .skip PAGE_SIZE -pg0: .skip PAGE_SIZE -pg1: .skip PAGE_SIZE -pg2: .skip PAGE_SIZE -pg3: .skip PAGE_SIZE -empty_bad_page: .skip PAGE_SIZE -empty_bad_page_table: .skip PAGE_SIZE + .globl empty_zero_page empty_zero_page: .skip PAGE_SIZE .global root_flags @@ -523,10 +172,10 @@ copy_prom_lvl14: ldd [%g2 + 0x8], %g4 std %g4, [%g3 + 0x8] ! Copy proms handler -/* Must determine whether we are on a sun4c MMU, SRMMU, or SUN4/400 MUTANT - * MMU so we can remap ourselves properly. DON'T TOUCH %l0 thru %l5 in these - * remapping routines, we need their values afterwards! +/* DON'T TOUCH %l0 thru %l5 in these remapping routines, + * we need their values afterwards! */ + /* Now check whether we are already mapped, if we * are we can skip all this garbage coming up. */ @@ -535,26 +184,29 @@ copy_prom_done: be go_to_highmem ! this will be a nop then nop - set LOAD_ADDR, %g6 + /* Validate that we are in fact running on an + * SRMMU based cpu. + */ + set 0x4000, %g6 cmp %g7, %g6 - bne remap_not_a_sun4 ! This is not a Sun4 + bne not_a_sun4 nop - or %g0, 0x1, %g1 - lduba [%g1] ASI_CONTROL, %g1 ! Only safe to try on Sun4. - subcc %g1, 0x24, %g0 ! Is this a mutant Sun4/400??? - be sun4_mutant_remap ! Ugh, it is... +halt_sun4_or_sun4c: + ld [%g7 + 0x68], %o1 + set sun4c_notsup, %o0 + sub %o0, %l6, %o0 + call %o1 nop - - b sun4_normal_remap ! regular sun4, 2 level mmu + ba halt_me nop -remap_not_a_sun4: - lda [%g0] ASI_M_MMUREGS, %g1 ! same as ASI_PTE on sun4c - and %g1, 0x1, %g1 ! Test SRMMU Enable bit ;-) - cmp %g1, 0x0 - be sun4c_remap ! A sun4c MMU or normal Sun4 +not_a_sun4: + lda [%g0] ASI_M_MMUREGS, %g1 + andcc %g1, 1, %g0 + be halt_sun4_or_sun4c nop + srmmu_remap: /* First, check for a viking (TI) module. */ set 0x40000000, %g2 @@ -660,72 +312,6 @@ srmmu_nviking: b go_to_highmem nop ! wheee.... - /* This remaps the kernel on Sun4/4xx machines - * that have the Sun Mutant Three Level MMU. - * It's like a platypus, Sun didn't have the - * SRMMU in conception so they kludged the three - * level logic in the regular Sun4 MMU probably. - * - * Basically, you take each entry in the top level - * directory that maps the low 3MB starting at - * address zero and put the mapping in the KERNBASE - * slots. These top level pgd's are called regmaps. - */ -sun4_mutant_remap: - or %g0, %g0, %g3 ! source base - sethi %hi(KERNBASE), %g4 ! destination base - or %g4, %lo(KERNBASE), %g4 - sethi %hi(0x300000), %g5 - or %g5, %lo(0x300000), %g5 ! upper bound 3MB - or %g0, 0x1, %l6 - sll %l6, 24, %l6 ! Regmap mapping size - add %g3, 0x2, %g3 ! Base magic - add %g4, 0x2, %g4 ! Base magic - - /* Main remapping loop on Sun4-Mutant-MMU. - * "I am not an animal..." -Famous Mutant Person - */ -sun4_mutant_loop: - lduha [%g3] ASI_REGMAP, %g2 ! Get lower entry - stha %g2, [%g4] ASI_REGMAP ! Store in high entry - add %g4, %l6, %g4 ! Move up high memory ptr - subcc %g3, %g5, %g0 ! Reached our limit? - blu sun4_mutant_loop ! Nope, loop again - add %g3, %l6, %g3 ! delay, Move up low ptr - b go_to_highmem ! Jump to high memory. - nop - - /* The following is for non-4/4xx sun4 MMU's. */ -sun4_normal_remap: - mov 0, %g3 ! source base - set KERNBASE, %g4 ! destination base - set 0x300000, %g5 ! upper bound 3MB - mov 1, %l6 - sll %l6, 18, %l6 ! sun4 mmu segmap size -sun4_normal_loop: - lduha [%g3] ASI_SEGMAP, %g6 ! load phys_seg - stha %g6, [%g4] ASI_SEGMAP ! stort new virt mapping - add %g3, %l6, %g3 ! increment source pointer - subcc %g3, %g5, %g0 ! reached limit? - blu sun4_normal_loop ! nope, loop again - add %g4, %l6, %g4 ! delay, increment dest ptr - b go_to_highmem - nop - - /* The following works for Sun4c MMU's */ -sun4c_remap: - mov 0, %g3 ! source base - set KERNBASE, %g4 ! destination base - set 0x300000, %g5 ! upper bound 3MB - mov 1, %l6 - sll %l6, 18, %l6 ! sun4c mmu segmap size -sun4c_remap_loop: - lda [%g3] ASI_SEGMAP, %g6 ! load phys_seg - sta %g6, [%g4] ASI_SEGMAP ! store new virt mapping - add %g3, %l6, %g3 ! Increment source ptr - subcc %g3, %g5, %g0 ! Reached limit? - bl sun4c_remap_loop ! Nope, loop again - add %g4, %l6, %g4 ! delay, Increment dest ptr /* Now do a non-relative jump so that PC is in high-memory */ go_to_highmem: @@ -750,35 +336,12 @@ execute_in_high_mem: sethi %hi(linux_dbvec), %g1 st %o1, [%g1 + %lo(linux_dbvec)] - ld [%o0 + 0x4], %o3 - and %o3, 0x3, %o5 ! get the version - - cmp %o3, 0x2 ! a v2 prom? - be found_version - nop - - /* paul@sfe.com.au */ - cmp %o3, 0x3 ! a v3 prom? - be found_version - nop - -/* Old sun4's pass our load address into %o0 instead of the prom - * pointer. On sun4's you have to hard code the romvec pointer into - * your code. Sun probably still does that because they don't even - * trust their own "OpenBoot" specifications. - */ - set LOAD_ADDR, %g6 - cmp %o0, %g6 ! an old sun4? - be sun4_init - nop - -found_version: /* Get the machine type via the mysterious romvec node operations. */ - add %g7, 0x1c, %l1 + add %g7, 0x1c, %l1 ld [%l1], %l0 ld [%l0], %l0 - call %l0 + call %l0 or %g0, %g0, %o0 ! next_node(0) = first_node or %o0, %g0, %g6 @@ -786,28 +349,13 @@ found_version: or %o1, %lo(cputypvar), %o1 sethi %hi(cputypval), %o2 ! information, the string or %o2, %lo(cputypval), %o2 - ld [%l1], %l0 ! 'compatibility' tells + ld [%l1], %l0 ! 'compatible' tells ld [%l0 + 0xc], %l0 ! that we want 'sun4x' where - call %l0 ! x is one of '', 'c', 'm', - nop ! 'd' or 'e'. %o2 holds pointer + call %l0 ! x is one of 'm', 'd' or 'e'. + nop ! %o2 holds pointer ! to a buf where above string ! will get stored by the prom. - subcc %o0, %g0, %g0 - bpos got_prop ! Got the property - nop - - or %g6, %g0, %o0 - sethi %hi(cputypvar_sun4m), %o1 - or %o1, %lo(cputypvar_sun4m), %o1 - sethi %hi(cputypval), %o2 - or %o2, %lo(cputypval), %o2 - ld [%l1], %l0 - ld [%l0 + 0xc], %l0 - call %l0 - nop - -got_prop: #ifdef CONFIG_SPARC_LEON /* no cpu-type check is needed, it is a SPARC-LEON */ @@ -826,45 +374,29 @@ got_prop: /* Update boot_cpu_id only on boot cpu */ stub %g1, [%g2 + %lo(boot_cpu_id)] - ba sun4c_continue_boot + ba continue_boot nop #endif + +/* Check to cputype. We may be booted on a sun4u (64 bit box), + * and sun4d needs special treatment. + */ + set cputypval, %o2 ldub [%o2 + 0x4], %l1 - cmp %l1, ' ' - be 1f - cmp %l1, 'c' - be 1f - cmp %l1, 'm' - be 1f + cmp %l1, 'm' + be sun4m_init cmp %l1, 's' - be 1f + be sun4m_init cmp %l1, 'd' - be 1f + be sun4d_init cmp %l1, 'e' be no_sun4e_here ! Could be a sun4e. nop b no_sun4u_here ! AIEEE, a V9 sun4u... Get our BIG BROTHER kernel :)) nop -1: set cputypval, %l1 - ldub [%l1 + 0x4], %l1 - cmp %l1, 'm' ! Test for sun4d, sun4e ? - be sun4m_init - cmp %l1, 's' ! Treat sun4s as sun4m - be sun4m_init - cmp %l1, 'd' ! Let us see how the beast will die - be sun4d_init - nop - - /* Jump into mmu context zero. */ - set AC_CONTEXT, %g1 - stba %g0, [%g1] ASI_CONTROL - - b sun4c_continue_boot - nop - /* CPUID in bootbus can be found at PA 0xff0140000 */ #define SUN4D_BOOTBUS_CPUID 0xf0140000 @@ -892,66 +424,6 @@ sun4d_init: /* Fall through to sun4m_init */ sun4m_init: - /* XXX Fucking Cypress... */ - lda [%g0] ASI_M_MMUREGS, %g5 - srl %g5, 28, %g4 - - cmp %g4, 1 - bne 1f - srl %g5, 24, %g4 - - and %g4, 0xf, %g4 - cmp %g4, 7 /* This would be a HyperSparc. */ - - bne 2f - nop - -1: - -#define PATCH_IT(dst, src) \ - set (dst), %g5; \ - set (src), %g4; \ - ld [%g4], %g3; \ - st %g3, [%g5]; \ - ld [%g4+0x4], %g3; \ - st %g3, [%g5+0x4]; - - /* Signed multiply. */ - PATCH_IT(.mul, .mul_patch) - PATCH_IT(.mul+0x08, .mul_patch+0x08) - - /* Signed remainder. */ - PATCH_IT(.rem, .rem_patch) - PATCH_IT(.rem+0x08, .rem_patch+0x08) - PATCH_IT(.rem+0x10, .rem_patch+0x10) - PATCH_IT(.rem+0x18, .rem_patch+0x18) - PATCH_IT(.rem+0x20, .rem_patch+0x20) - PATCH_IT(.rem+0x28, .rem_patch+0x28) - - /* Signed division. */ - PATCH_IT(.div, .div_patch) - PATCH_IT(.div+0x08, .div_patch+0x08) - PATCH_IT(.div+0x10, .div_patch+0x10) - PATCH_IT(.div+0x18, .div_patch+0x18) - PATCH_IT(.div+0x20, .div_patch+0x20) - - /* Unsigned multiply. */ - PATCH_IT(.umul, .umul_patch) - PATCH_IT(.umul+0x08, .umul_patch+0x08) - - /* Unsigned remainder. */ - PATCH_IT(.urem, .urem_patch) - PATCH_IT(.urem+0x08, .urem_patch+0x08) - PATCH_IT(.urem+0x10, .urem_patch+0x10) - PATCH_IT(.urem+0x18, .urem_patch+0x18) - - /* Unsigned division. */ - PATCH_IT(.udiv, .udiv_patch) - PATCH_IT(.udiv+0x08, .udiv_patch+0x08) - PATCH_IT(.udiv+0x10, .udiv_patch+0x10) - -#undef PATCH_IT - /* Ok, the PROM could have done funny things and apple cider could still * be sitting in the fault status/address registers. Read them all to * clear them so we don't get magic faults later on. @@ -962,7 +434,7 @@ sun4m_init: srl %o1, 28, %o1 ! Get a type of the CPU subcc %o1, 4, %g0 ! TI: Viking or MicroSPARC - be sun4c_continue_boot + be continue_boot nop set AC_M_SFSR, %o0 @@ -972,7 +444,7 @@ sun4m_init: /* Fujitsu MicroSPARC-II has no asynchronous flavors of FARs */ subcc %o1, 0, %g0 - be sun4c_continue_boot + be continue_boot nop set AC_M_AFSR, %o0 @@ -982,8 +454,7 @@ sun4m_init: nop -sun4c_continue_boot: - +continue_boot: /* Aieee, now set PC and nPC, enable traps, give ourselves a stack and it's * show-time! @@ -1026,10 +497,7 @@ sun4c_continue_boot: mov %g0, %g3 stub %g3, [%g2 + %lo(boot_cpu_id)] -1: /* boot_cpu_id set. calculate boot_cpu_id4 = boot_cpu_id*4 */ - sll %g3, 2, %g3 - sethi %hi(boot_cpu_id4), %g2 - stub %g3, [%g2 + %lo(boot_cpu_id4)] +1: sll %g3, 2, %g3 /* Initialize the uwinmask value for init task just in case. * But first make current_set[boot_cpu_id] point to something useful. @@ -1165,19 +633,6 @@ sun4c_continue_boot: call halt_me nop -sun4_init: - sethi %hi(SUN4_PROM_VECTOR+0x84), %o1 - ld [%o1 + %lo(SUN4_PROM_VECTOR+0x84)], %o1 - set sun4_notsup, %o0 - call %o1 /* printf */ - nop - sethi %hi(SUN4_PROM_VECTOR+0xc4), %o1 - ld [%o1 + %lo(SUN4_PROM_VECTOR+0xc4)], %o1 - call %o1 /* exittomon */ - nop -1: ba 1b ! Cannot exit into KMON - nop - no_sun4e_here: ld [%g7 + 0x68], %o1 set sun4e_notsup, %o0 diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S index 0d810c2f1d0..b42ddbf9651 100644 --- a/arch/sparc/kernel/head_64.S +++ b/arch/sparc/kernel/head_64.S @@ -906,7 +906,7 @@ swapper_4m_tsb: * error and will instead write junk into the relocation and * you'll have an unbootable kernel. */ -#include "ttable.S" +#include "ttable_64.S" ! 0x0000000000428000 diff --git a/arch/sparc/kernel/idprom.c b/arch/sparc/kernel/idprom.c index 9167db40720..6bd75012109 100644 --- a/arch/sparc/kernel/idprom.c +++ b/arch/sparc/kernel/idprom.c @@ -25,22 +25,9 @@ static struct idprom idprom_buffer; * of the Sparc CPU and have a meaningful IDPROM machtype value that we * know about. See asm-sparc/machines.h for empirical constants. */ -static struct Sun_Machine_Models Sun_Machines[NUM_SUN_MACHINES] = { -/* First, Sun4's */ -{ .name = "Sun 4/100 Series", .id_machtype = (SM_SUN4 | SM_4_110) }, -{ .name = "Sun 4/200 Series", .id_machtype = (SM_SUN4 | SM_4_260) }, -{ .name = "Sun 4/300 Series", .id_machtype = (SM_SUN4 | SM_4_330) }, -{ .name = "Sun 4/400 Series", .id_machtype = (SM_SUN4 | SM_4_470) }, -/* Now Leon */ +static struct Sun_Machine_Models Sun_Machines[] = { +/* First, Leon */ { .name = "Leon3 System-on-a-Chip", .id_machtype = (M_LEON | M_LEON3_SOC) }, -/* Now, Sun4c's */ -{ .name = "Sun4c SparcStation 1", .id_machtype = (SM_SUN4C | SM_4C_SS1) }, -{ .name = "Sun4c SparcStation IPC", .id_machtype = (SM_SUN4C | SM_4C_IPC) }, -{ .name = "Sun4c SparcStation 1+", .id_machtype = (SM_SUN4C | SM_4C_SS1PLUS) }, -{ .name = "Sun4c SparcStation SLC", .id_machtype = (SM_SUN4C | SM_4C_SLC) }, -{ .name = "Sun4c SparcStation 2", .id_machtype = (SM_SUN4C | SM_4C_SS2) }, -{ .name = "Sun4c SparcStation ELC", .id_machtype = (SM_SUN4C | SM_4C_ELC) }, -{ .name = "Sun4c SparcStation IPX", .id_machtype = (SM_SUN4C | SM_4C_IPX) }, /* Finally, early Sun4m's */ { .name = "Sun4m SparcSystem600", .id_machtype = (SM_SUN4M | SM_4M_SS60) }, { .name = "Sun4m SparcStation10/20", .id_machtype = (SM_SUN4M | SM_4M_SS50) }, @@ -53,7 +40,7 @@ static void __init display_system_type(unsigned char machtype) char sysname[128]; register int i; - for (i = 0; i < NUM_SUN_MACHINES; i++) { + for (i = 0; i < ARRAY_SIZE(Sun_Machines); i++) { if (Sun_Machines[i].id_machtype == machtype) { if (machtype != (SM_SUN4M_OBP | 0x00) || prom_getproperty(prom_root_node, "banner-name", diff --git a/arch/sparc/kernel/init_task.c b/arch/sparc/kernel/init_task.c deleted file mode 100644 index 35f141a9f50..00000000000 --- a/arch/sparc/kernel/init_task.c +++ /dev/null @@ -1,22 +0,0 @@ -#include <linux/mm.h> -#include <linux/fs.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/init_task.h> -#include <linux/mqueue.h> - -#include <asm/pgtable.h> -#include <asm/uaccess.h> - -static struct signal_struct init_signals = INIT_SIGNALS(init_signals); -static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand); -struct task_struct init_task = INIT_TASK(init_task); -EXPORT_SYMBOL(init_task); - -/* .text section in head.S is aligned at 8k boundary and this gets linked - * right after that so that the init_thread_union is aligned properly as well. - * If this is not aligned on a 8k boundary, then you should change code - * in etrap.S which assumes it. - */ -union thread_union init_thread_union __init_task_data = - { INIT_THREAD_INFO(init_task) }; diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 21bd73943f7..a2846f5e32d 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -50,6 +50,8 @@ #include <asm/io-unit.h> #include <asm/leon.h> +const struct sparc32_dma_ops *sparc32_dma_ops; + /* This function must make sure that caches and memory are coherent after DMA * On LEON systems without cache snooping it flushes the entire D-CACHE. */ @@ -229,7 +231,7 @@ _sparc_ioremap(struct resource *res, u32 bus, u32 pa, int sz) } pa &= PAGE_MASK; - sparc_mapiorange(bus, pa, res->start, resource_size(res)); + srmmu_mapiorange(bus, pa, res->start, resource_size(res)); return (void __iomem *)(unsigned long)(res->start + offset); } @@ -243,7 +245,7 @@ static void _sparc_free_io(struct resource *res) plen = resource_size(res); BUG_ON((plen & (PAGE_SIZE-1)) != 0); - sparc_unmapiorange(res->start, plen); + srmmu_unmapiorange(res->start, plen); release_resource(res); } @@ -292,13 +294,13 @@ static void *sbus_alloc_coherent(struct device *dev, size_t len, goto err_nova; } - // XXX The mmu_map_dma_area does this for us below, see comments. - // sparc_mapiorange(0, virt_to_phys(va), res->start, len_total); + // XXX The sbus_map_dma_area does this for us below, see comments. + // srmmu_mapiorange(0, virt_to_phys(va), res->start, len_total); /* * XXX That's where sdev would be used. Currently we load * all iommu tables with the same translations. */ - if (mmu_map_dma_area(dev, dma_addrp, va, res->start, len_total) != 0) + if (sbus_map_dma_area(dev, dma_addrp, va, res->start, len_total) != 0) goto err_noiommu; res->name = op->dev.of_node->name; @@ -343,7 +345,7 @@ static void sbus_free_coherent(struct device *dev, size_t n, void *p, kfree(res); pgv = virt_to_page(p); - mmu_unmap_dma_area(dev, ba, n); + sbus_unmap_dma_area(dev, ba, n); __free_pages(pgv, get_order(n)); } @@ -381,11 +383,6 @@ static int sbus_map_sg(struct device *dev, struct scatterlist *sg, int n, enum dma_data_direction dir, struct dma_attrs *attrs) { mmu_get_scsi_sgl(dev, sg, n); - - /* - * XXX sparc64 can return a partial length here. sun4c should do this - * but it currently panics if it can't fulfill the request - Anton - */ return n; } @@ -469,7 +466,7 @@ static void *pci32_alloc_coherent(struct device *dev, size_t len, printk("pci_alloc_consistent: cannot occupy 0x%lx", len_total); goto err_nova; } - sparc_mapiorange(0, virt_to_phys(va), res->start, len_total); + srmmu_mapiorange(0, virt_to_phys(va), res->start, len_total); *pba = virt_to_phys(va); /* equals virt_to_bus (R.I.P.) for us. */ return (void *) res->start; @@ -514,7 +511,7 @@ static void pci32_free_coherent(struct device *dev, size_t n, void *p, } dma_make_coherent(ba, n); - sparc_unmapiorange((unsigned long)p, n); + srmmu_unmapiorange((unsigned long)p, n); release_resource(res); kfree(res); diff --git a/arch/sparc/kernel/irq.h b/arch/sparc/kernel/irq.h index 5a021dd2f85..b66b6aad1d6 100644 --- a/arch/sparc/kernel/irq.h +++ b/arch/sparc/kernel/irq.h @@ -1,6 +1,5 @@ #include <linux/platform_device.h> -#include <asm/btfixup.h> #include <asm/cpu_type.h> struct irq_bucket { @@ -10,6 +9,9 @@ struct irq_bucket { unsigned int pil; }; +#define SUN4M_HARD_INT(x) (0x000000001 << (x)) +#define SUN4M_SOFT_INT(x) (0x000010000 << (x)) + #define SUN4D_MAX_BOARD 10 #define SUN4D_MAX_IRQ ((SUN4D_MAX_BOARD + 2) << 5) @@ -41,52 +43,46 @@ struct sun4m_irq_global { extern struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS]; extern struct sun4m_irq_global __iomem *sun4m_irq_global; +/* The following definitions describe the individual platform features: */ +#define FEAT_L10_CLOCKSOURCE (1 << 0) /* L10 timer is used as a clocksource */ +#define FEAT_L10_CLOCKEVENT (1 << 1) /* L10 timer is used as a clockevent */ +#define FEAT_L14_ONESHOT (1 << 2) /* L14 timer clockevent can oneshot */ + /* - * Platform specific irq configuration + * Platform specific configuration * The individual platforms assign their platform * specifics in their init functions. */ -struct sparc_irq_config { - void (*init_timers)(irq_handler_t); +struct sparc_config { + void (*init_timers)(void); unsigned int (*build_device_irq)(struct platform_device *op, unsigned int real_irq); + + /* generic clockevent features - see FEAT_* above */ + int features; + + /* clock rate used for clock event timer */ + int clock_rate; + + /* one period for clock source timer */ + unsigned int cs_period; + + /* function to obtain offsett for cs period */ + unsigned int (*get_cycles_offset)(void); + + void (*clear_clock_irq)(void); + void (*load_profile_irq)(int cpu, unsigned int limit); }; -extern struct sparc_irq_config sparc_irq_config; +extern struct sparc_config sparc_config; unsigned int irq_alloc(unsigned int real_irq, unsigned int pil); void irq_link(unsigned int irq); void irq_unlink(unsigned int irq); void handler_irq(unsigned int pil, struct pt_regs *regs); -/* Dave Redman (djhr@tadpole.co.uk) - * changed these to function pointers.. it saves cycles and will allow - * the irq dependencies to be split into different files at a later date - * sun4c_irq.c, sun4m_irq.c etc so we could reduce the kernel size. - * Jakub Jelinek (jj@sunsite.mff.cuni.cz) - * Changed these to btfixup entities... It saves cycles :) - */ - -BTFIXUPDEF_CALL(void, clear_clock_irq, void) -BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int) - -static inline void clear_clock_irq(void) -{ - BTFIXUP_CALL(clear_clock_irq)(); -} - -static inline void load_profile_irq(int cpu, int limit) -{ - BTFIXUP_CALL(load_profile_irq)(cpu, limit); -} +unsigned long leon_get_irqmask(unsigned int irq); #ifdef CONFIG_SMP -BTFIXUPDEF_CALL(void, set_cpu_int, int, int) -BTFIXUPDEF_CALL(void, clear_cpu_int, int, int) -BTFIXUPDEF_CALL(void, set_irq_udt, int) - -#define set_cpu_int(cpu,level) BTFIXUP_CALL(set_cpu_int)(cpu,level) -#define clear_cpu_int(cpu,level) BTFIXUP_CALL(clear_cpu_int)(cpu,level) -#define set_irq_udt(cpu) BTFIXUP_CALL(set_irq_udt)(cpu) /* All SUN4D IPIs are sent on this IRQ, may be shared with hard IRQs */ #define SUN4D_IPI_IRQ 13 diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c index b2668afd1c3..ae04914f777 100644 --- a/arch/sparc/kernel/irq_32.c +++ b/arch/sparc/kernel/irq_32.c @@ -23,16 +23,8 @@ #include "kernel.h" #include "irq.h" -#ifdef CONFIG_SMP -#define SMP_NOP2 "nop; nop;\n\t" -#define SMP_NOP3 "nop; nop; nop;\n\t" -#else -#define SMP_NOP2 -#define SMP_NOP3 -#endif /* SMP */ - /* platform specific irq setup */ -struct sparc_irq_config sparc_irq_config; +struct sparc_config sparc_config; unsigned long arch_local_irq_save(void) { @@ -41,7 +33,6 @@ unsigned long arch_local_irq_save(void) __asm__ __volatile__( "rd %%psr, %0\n\t" - SMP_NOP3 /* Sun4m + Cypress + SMP bug */ "or %0, %2, %1\n\t" "wr %1, 0, %%psr\n\t" "nop; nop; nop\n" @@ -59,7 +50,6 @@ void arch_local_irq_enable(void) __asm__ __volatile__( "rd %%psr, %0\n\t" - SMP_NOP3 /* Sun4m + Cypress + SMP bug */ "andn %0, %1, %0\n\t" "wr %0, 0, %%psr\n\t" "nop; nop; nop\n" @@ -76,7 +66,6 @@ void arch_local_irq_restore(unsigned long old_psr) __asm__ __volatile__( "rd %%psr, %0\n\t" "and %2, %1, %2\n\t" - SMP_NOP2 /* Sun4m + Cypress + SMP bug */ "andn %0, %1, %0\n\t" "wr %0, %2, %%psr\n\t" "nop; nop; nop\n" @@ -346,11 +335,6 @@ void sparc_floppy_irq(int irq, void *dev_id, struct pt_regs *regs) void __init init_IRQ(void) { switch (sparc_cpu_model) { - case sun4c: - case sun4: - sun4c_init_IRQ(); - break; - case sun4m: pcic_probe(); if (pcic_present()) @@ -371,6 +355,5 @@ void __init init_IRQ(void) prom_printf("Cannot initialize IRQs on this Sun machine..."); break; } - btfixup(); } diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c index dff2c3d7d37..9bcbbe2c4e7 100644 --- a/arch/sparc/kernel/irq_64.c +++ b/arch/sparc/kernel/irq_64.c @@ -799,7 +799,7 @@ static void kill_prom_timer(void) prom_limit0 = prom_timers->limit0; prom_limit1 = prom_timers->limit1; - /* Just as in sun4c/sun4m PROM uses timer which ticks at IRQ 14. + /* Just as in sun4c PROM uses timer which ticks at IRQ 14. * We turn both off here just to be paranoid. */ prom_timers->limit0 = 0; diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h index fd6c36b1df7..a86372d3458 100644 --- a/arch/sparc/kernel/kernel.h +++ b/arch/sparc/kernel/kernel.h @@ -32,9 +32,6 @@ extern void cpu_probe(void); /* traps_32.c */ extern void handle_hw_divzero(struct pt_regs *regs, unsigned long pc, unsigned long npc, unsigned long psr); -/* muldiv.c */ -extern int do_user_muldiv (struct pt_regs *, unsigned long); - /* irq_32.c */ extern struct irqaction static_irqaction[]; extern int static_irq_count; @@ -43,12 +40,7 @@ extern spinlock_t irq_action_lock; extern void unexpected_irq(int irq, void *dev_id, struct pt_regs * regs); extern void init_IRQ(void); -/* sun4c_irq.c */ -extern void sun4c_init_IRQ(void); - /* sun4m_irq.c */ -extern unsigned int lvl14_resolution; - extern void sun4m_init_IRQ(void); extern void sun4m_unmask_profile_irq(void); extern void sun4m_clear_profile_irq(int cpu); @@ -85,8 +77,6 @@ extern unsigned int patchme_maybe_smp_msg[]; extern void floppy_hardint(void); /* trampoline_32.S */ -extern int __smp4m_processor_id(void); -extern int __smp4d_processor_id(void); extern unsigned long sun4m_cpu_startup; extern unsigned long sun4d_cpu_startup; diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c index 35e43673c45..77c1b916e4d 100644 --- a/arch/sparc/kernel/leon_kernel.c +++ b/arch/sparc/kernel/leon_kernel.c @@ -10,6 +10,8 @@ #include <linux/of_platform.h> #include <linux/interrupt.h> #include <linux/of_device.h> +#include <linux/clocksource.h> +#include <linux/clockchips.h> #include <asm/oplib.h> #include <asm/timer.h> @@ -84,7 +86,7 @@ void leon_eirq_setup(unsigned int eirq) sparc_leon_eirq = eirq; } -static inline unsigned long get_irqmask(unsigned int irq) +unsigned long leon_get_irqmask(unsigned int irq) { unsigned long mask; @@ -210,7 +212,7 @@ unsigned int leon_build_device_irq(unsigned int real_irq, unsigned long mask; irq = 0; - mask = get_irqmask(real_irq); + mask = leon_get_irqmask(real_irq); if (mask == 0) goto out; @@ -250,7 +252,38 @@ void leon_update_virq_handling(unsigned int virq, irq_set_chip_data(virq, (void *)mask); } -void __init leon_init_timers(irq_handler_t counter_fn) +static u32 leon_cycles_offset(void) +{ + u32 rld, val, off; + rld = LEON3_BYPASS_LOAD_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].rld); + val = LEON3_BYPASS_LOAD_PA(&leon3_gptimer_regs->e[leon3_gptimer_idx].val); + off = rld - val; + return rld - val; +} + +#ifdef CONFIG_SMP + +/* smp clockevent irq */ +irqreturn_t leon_percpu_timer_ce_interrupt(int irq, void *unused) +{ + struct clock_event_device *ce; + int cpu = smp_processor_id(); + + leon_clear_profile_irq(cpu); + + ce = &per_cpu(sparc32_clockevent, cpu); + + irq_enter(); + if (ce->event_handler) + ce->event_handler(ce); + irq_exit(); + + return IRQ_HANDLED; +} + +#endif /* CONFIG_SMP */ + +void __init leon_init_timers(void) { int irq, eirq; struct device_node *rootnp, *np, *nnp; @@ -260,6 +293,14 @@ void __init leon_init_timers(irq_handler_t counter_fn) int ampopts; int err; + sparc_config.get_cycles_offset = leon_cycles_offset; + sparc_config.cs_period = 1000000 / HZ; + sparc_config.features |= FEAT_L10_CLOCKSOURCE; + +#ifndef CONFIG_SMP + sparc_config.features |= FEAT_L10_CLOCKEVENT; +#endif + leondebug_irq_disable = 0; leon_debug_irqout = 0; master_l10_counter = (unsigned int *)&dummy_master_l10_counter; @@ -369,7 +410,7 @@ void __init leon_init_timers(irq_handler_t counter_fn) leon_eirq_setup(eirq); irq = _leon_build_device_irq(NULL, leon3_gptimer_irq+leon3_gptimer_idx); - err = request_irq(irq, counter_fn, IRQF_TIMER, "timer", NULL); + err = request_irq(irq, timer_interrupt, IRQF_TIMER, "timer", NULL); if (err) { printk(KERN_ERR "unable to attach timer IRQ%d\n", irq); prom_halt(); @@ -386,7 +427,7 @@ void __init leon_init_timers(irq_handler_t counter_fn) */ local_irq_save(flags); patchme_maybe_smp_msg[0] = 0x01000000; /* NOP out the branch */ - local_flush_cache_all(); + local_ops->cache_all(); local_irq_restore(flags); } #endif @@ -401,7 +442,7 @@ void __init leon_init_timers(irq_handler_t counter_fn) /* Install per-cpu IRQ handler for broadcasted ticker */ irq = leon_build_device_irq(leon3_ticker_irq, handle_percpu_irq, "per-cpu", 0); - err = request_irq(irq, leon_percpu_timer_interrupt, + err = request_irq(irq, leon_percpu_timer_ce_interrupt, IRQF_PERCPU | IRQF_TIMER, "ticker", NULL); if (err) { @@ -422,13 +463,12 @@ bad: return; } -void leon_clear_clock_irq(void) +static void leon_clear_clock_irq(void) { } -void leon_load_profile_irq(int cpu, unsigned int limit) +static void leon_load_profile_irq(int cpu, unsigned int limit) { - BUG(); } void __init leon_trans_init(struct device_node *dp) @@ -457,25 +497,6 @@ void __init leon_node_init(struct device_node *dp, struct device_node ***nextp) } #ifdef CONFIG_SMP - -void leon_set_cpu_int(int cpu, int level) -{ - unsigned long mask; - mask = get_irqmask(level); - LEON3_BYPASS_STORE_PA(&leon3_irqctrl_regs->force[cpu], mask); -} - -static void leon_clear_ipi(int cpu, int level) -{ - unsigned long mask; - mask = get_irqmask(level); - LEON3_BYPASS_STORE_PA(&leon3_irqctrl_regs->force[cpu], mask<<16); -} - -static void leon_set_udt(int cpu) -{ -} - void leon_clear_profile_irq(int cpu) { } @@ -483,7 +504,7 @@ void leon_clear_profile_irq(int cpu) void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu) { unsigned long mask, flags, *addr; - mask = get_irqmask(irq_nr); + mask = leon_get_irqmask(irq_nr); spin_lock_irqsave(&leon_irq_lock, flags); addr = (unsigned long *)LEON_IMASK(cpu); LEON3_BYPASS_STORE_PA(addr, (LEON3_BYPASS_LOAD_PA(addr) | mask)); @@ -494,20 +515,11 @@ void leon_enable_irq_cpu(unsigned int irq_nr, unsigned int cpu) void __init leon_init_IRQ(void) { - sparc_irq_config.init_timers = leon_init_timers; - sparc_irq_config.build_device_irq = _leon_build_device_irq; - - BTFIXUPSET_CALL(clear_clock_irq, leon_clear_clock_irq, - BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(load_profile_irq, leon_load_profile_irq, - BTFIXUPCALL_NOP); - -#ifdef CONFIG_SMP - BTFIXUPSET_CALL(set_cpu_int, leon_set_cpu_int, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(clear_cpu_int, leon_clear_ipi, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(set_irq_udt, leon_set_udt, BTFIXUPCALL_NORM); -#endif - + sparc_config.init_timers = leon_init_timers; + sparc_config.build_device_irq = _leon_build_device_irq; + sparc_config.clock_rate = 1000000; + sparc_config.clear_clock_irq = leon_clear_clock_irq; + sparc_config.load_profile_irq = leon_load_profile_irq; } void __init leon_init(void) diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c index 160cac9c403..a469090faf9 100644 --- a/arch/sparc/kernel/leon_smp.c +++ b/arch/sparc/kernel/leon_smp.c @@ -24,6 +24,7 @@ #include <linux/delay.h> #include <linux/gfp.h> #include <linux/cpu.h> +#include <linux/clockchips.h> #include <asm/cacheflush.h> #include <asm/tlbflush.h> @@ -43,6 +44,7 @@ #include <asm/asi.h> #include <asm/leon.h> #include <asm/leon_amba.h> +#include <asm/timer.h> #include "kernel.h" @@ -69,26 +71,24 @@ static inline unsigned long do_swap(volatile unsigned long *ptr, return val; } -static void smp_setup_percpu_timer(void); - void __cpuinit leon_callin(void) { - int cpuid = hard_smpleon_processor_id(); + int cpuid = hard_smp_processor_id(); - local_flush_cache_all(); - local_flush_tlb_all(); + local_ops->cache_all(); + local_ops->tlb_all(); leon_configure_cache_smp(); notify_cpu_starting(cpuid); /* Get our local ticker going. */ - smp_setup_percpu_timer(); + register_percpu_ce(cpuid); calibrate_delay(); smp_store_cpu_info(cpuid); - local_flush_cache_all(); - local_flush_tlb_all(); + local_ops->cache_all(); + local_ops->tlb_all(); /* * Unblock the master CPU _only_ when the scheduler state @@ -99,8 +99,8 @@ void __cpuinit leon_callin(void) */ do_swap(&cpu_callin_map[cpuid], 1); - local_flush_cache_all(); - local_flush_tlb_all(); + local_ops->cache_all(); + local_ops->tlb_all(); /* Fix idle thread fields. */ __asm__ __volatile__("ld [%0], %%g6\n\t" : : "r"(¤t_set[cpuid]) @@ -143,8 +143,8 @@ void __init leon_configure_cache_smp(void) } } - local_flush_cache_all(); - local_flush_tlb_all(); + local_ops->cache_all(); + local_ops->tlb_all(); } void leon_smp_setbroadcast(unsigned int mask) @@ -199,21 +199,15 @@ void __init leon_boot_cpus(void) leon_smp_setbroadcast(1 << LEON3_IRQ_TICKER); leon_configure_cache_smp(); - smp_setup_percpu_timer(); - local_flush_cache_all(); + local_ops->cache_all(); } -int __cpuinit leon_boot_one_cpu(int i) +int __cpuinit leon_boot_one_cpu(int i, struct task_struct *idle) { - - struct task_struct *p; int timeout; - /* Cook up an idler for this guy. */ - p = fork_idle(i); - - current_set[i] = task_thread_info(p); + current_set[i] = task_thread_info(idle); /* See trampoline.S:leon_smp_cpu_startup for details... * Initialize the contexts table @@ -227,7 +221,7 @@ int __cpuinit leon_boot_one_cpu(int i) /* whirrr, whirrr, whirrrrrrrrr... */ printk(KERN_INFO "Starting CPU %d : (irqmp: 0x%x)\n", (unsigned int)i, (unsigned int)&leon3_irqctrl_regs->mpstatus); - local_flush_cache_all(); + local_ops->cache_all(); /* Make sure all IRQs are of from the start for this new CPU */ LEON_BYPASS_STORE_PA(&leon3_irqctrl_regs->mask[i], 0); @@ -252,7 +246,7 @@ int __cpuinit leon_boot_one_cpu(int i) leon_enable_irq_cpu(leon_ipi_irq, i); } - local_flush_cache_all(); + local_ops->cache_all(); return 0; } @@ -272,7 +266,7 @@ void __init leon_smp_done(void) } } *prev = first; - local_flush_cache_all(); + local_ops->cache_all(); /* Free unneeded trap tables */ if (!cpu_present(1)) { @@ -338,7 +332,7 @@ static void __init leon_ipi_init(void) local_irq_save(flags); trap_table = &sparc_ttable[SP_TRAP_IRQ1 + (leon_ipi_irq - 1)]; trap_table->inst_three += smpleon_ipi - real_irq_entry; - local_flush_cache_all(); + local_ops->cache_all(); local_irq_restore(flags); for_each_possible_cpu(cpu) { @@ -347,6 +341,13 @@ static void __init leon_ipi_init(void) } } +static void leon_send_ipi(int cpu, int level) +{ + unsigned long mask; + mask = leon_get_irqmask(level); + LEON3_BYPASS_STORE_PA(&leon3_irqctrl_regs->force[cpu], mask); +} + static void leon_ipi_single(int cpu) { struct leon_ipi_work *work = &per_cpu(leon_ipi_work, cpu); @@ -355,7 +356,7 @@ static void leon_ipi_single(int cpu) work->single = 1; /* Generate IRQ on the CPU */ - set_cpu_int(cpu, leon_ipi_irq); + leon_send_ipi(cpu, leon_ipi_irq); } static void leon_ipi_mask_one(int cpu) @@ -366,7 +367,7 @@ static void leon_ipi_mask_one(int cpu) work->msk = 1; /* Generate IRQ on the CPU */ - set_cpu_int(cpu, leon_ipi_irq); + leon_send_ipi(cpu, leon_ipi_irq); } static void leon_ipi_resched(int cpu) @@ -377,7 +378,7 @@ static void leon_ipi_resched(int cpu) work->resched = 1; /* Generate IRQ on the CPU (any IRQ will cause resched) */ - set_cpu_int(cpu, leon_ipi_irq); + leon_send_ipi(cpu, leon_ipi_irq); } void leonsmp_ipi_interrupt(void) @@ -449,7 +450,7 @@ static void leon_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, if (cpumask_test_cpu(i, &mask)) { ccall_info.processors_in[i] = 0; ccall_info.processors_out[i] = 0; - set_cpu_int(i, LEON3_IRQ_CROSS_CALL); + leon_send_ipi(i, LEON3_IRQ_CROSS_CALL); } } @@ -492,68 +493,19 @@ void leon_cross_call_irq(void) ccall_info.processors_out[i] = 1; } -irqreturn_t leon_percpu_timer_interrupt(int irq, void *unused) -{ - int cpu = smp_processor_id(); - - leon_clear_profile_irq(cpu); - - profile_tick(CPU_PROFILING); - - if (!--prof_counter(cpu)) { - int user = user_mode(get_irq_regs()); - - update_process_times(user); - - prof_counter(cpu) = prof_multiplier(cpu); - } - - return IRQ_HANDLED; -} - -static void __init smp_setup_percpu_timer(void) -{ - int cpu = smp_processor_id(); - - prof_counter(cpu) = prof_multiplier(cpu) = 1; -} - -void __init leon_blackbox_id(unsigned *addr) -{ - int rd = *addr & 0x3e000000; - int rs1 = rd >> 11; - - /* patch places where ___b_hard_smp_processor_id appears */ - addr[0] = 0x81444000 | rd; /* rd %asr17, reg */ - addr[1] = 0x8130201c | rd | rs1; /* srl reg, 0x1c, reg */ - addr[2] = 0x01000000; /* nop */ -} - -void __init leon_blackbox_current(unsigned *addr) -{ - int rd = *addr & 0x3e000000; - int rs1 = rd >> 11; - - /* patch LOAD_CURRENT macro where ___b_load_current appears */ - addr[0] = 0x81444000 | rd; /* rd %asr17, reg */ - addr[2] = 0x8130201c | rd | rs1; /* srl reg, 0x1c, reg */ - addr[4] = 0x81282002 | rd | rs1; /* sll reg, 0x2, reg */ - -} +static const struct sparc32_ipi_ops leon_ipi_ops = { + .cross_call = leon_cross_call, + .resched = leon_ipi_resched, + .single = leon_ipi_single, + .mask_one = leon_ipi_mask_one, +}; void __init leon_init_smp(void) { /* Patch ipi15 trap table */ t_nmi[1] = t_nmi[1] + (linux_trap_ipi15_leon - linux_trap_ipi15_sun4m); - BTFIXUPSET_BLACKBOX(hard_smp_processor_id, leon_blackbox_id); - BTFIXUPSET_BLACKBOX(load_current, leon_blackbox_current); - BTFIXUPSET_CALL(smp_cross_call, leon_cross_call, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(__hard_smp_processor_id, __leon_processor_id, - BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(smp_ipi_resched, leon_ipi_resched, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(smp_ipi_single, leon_ipi_single, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(smp_ipi_mask_one, leon_ipi_mask_one, BTFIXUPCALL_NORM); + sparc32_ipi_ops = &leon_ipi_ops; } #endif /* CONFIG_SPARC_LEON */ diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c index 276359e1ff5..15e0a169397 100644 --- a/arch/sparc/kernel/module.c +++ b/arch/sparc/kernel/module.c @@ -32,26 +32,11 @@ static void *module_map(unsigned long size) GFP_KERNEL, PAGE_KERNEL, -1, __builtin_return_address(0)); } - -static char *dot2underscore(char *name) -{ - return name; -} #else static void *module_map(unsigned long size) { return vmalloc(size); } - -/* Replace references to .func with _Func */ -static char *dot2underscore(char *name) -{ - if (name[0] == '.') { - name[0] = '_'; - name[1] = toupper(name[1]); - } - return name; -} #endif /* CONFIG_SPARC64 */ void *module_alloc(unsigned long size) @@ -93,12 +78,8 @@ int module_frob_arch_sections(Elf_Ehdr *hdr, for (i = 1; i < sechdrs[symidx].sh_size / sizeof(Elf_Sym); i++) { if (sym[i].st_shndx == SHN_UNDEF) { - if (ELF_ST_TYPE(sym[i].st_info) == STT_REGISTER) { + if (ELF_ST_TYPE(sym[i].st_info) == STT_REGISTER) sym[i].st_shndx = SHN_ABS; - } else { - char *name = strtab + sym[i].st_name; - dot2underscore(name); - } } } return 0; diff --git a/arch/sparc/kernel/muldiv.c b/arch/sparc/kernel/muldiv.c deleted file mode 100644 index f7db516b07d..00000000000 --- a/arch/sparc/kernel/muldiv.c +++ /dev/null @@ -1,238 +0,0 @@ -/* - * muldiv.c: Hardware multiply/division illegal instruction trap - * for sun4c/sun4 (which do not have those instructions) - * - * Copyright (C) 1996 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) - * - * 2004-12-25 Krzysztof Helt (krzysztof.h1@wp.pl) - * - fixed registers constrains in inline assembly declarations - */ - -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/mm.h> -#include <asm/ptrace.h> -#include <asm/processor.h> -#include <asm/uaccess.h> - -#include "kernel.h" - -/* #define DEBUG_MULDIV */ - -static inline int has_imm13(int insn) -{ - return (insn & 0x2000); -} - -static inline int is_foocc(int insn) -{ - return (insn & 0x800000); -} - -static inline int sign_extend_imm13(int imm) -{ - return imm << 19 >> 19; -} - -static inline void advance(struct pt_regs *regs) -{ - regs->pc = regs->npc; - regs->npc += 4; -} - -static inline void maybe_flush_windows(unsigned int rs1, unsigned int rs2, - unsigned int rd) -{ - if(rs2 >= 16 || rs1 >= 16 || rd >= 16) { - /* Wheee... */ - __asm__ __volatile__("save %sp, -0x40, %sp\n\t" - "save %sp, -0x40, %sp\n\t" - "save %sp, -0x40, %sp\n\t" - "save %sp, -0x40, %sp\n\t" - "save %sp, -0x40, %sp\n\t" - "save %sp, -0x40, %sp\n\t" - "save %sp, -0x40, %sp\n\t" - "restore; restore; restore; restore;\n\t" - "restore; restore; restore;\n\t"); - } -} - -#define fetch_reg(reg, regs) ({ \ - struct reg_window32 __user *win; \ - register unsigned long ret; \ - \ - if (!(reg)) ret = 0; \ - else if ((reg) < 16) { \ - ret = regs->u_regs[(reg)]; \ - } else { \ - /* Ho hum, the slightly complicated case. */ \ - win = (struct reg_window32 __user *)regs->u_regs[UREG_FP];\ - if (get_user (ret, &win->locals[(reg) - 16])) return -1;\ - } \ - ret; \ -}) - -static inline int -store_reg(unsigned int result, unsigned int reg, struct pt_regs *regs) -{ - struct reg_window32 __user *win; - - if (!reg) - return 0; - if (reg < 16) { - regs->u_regs[reg] = result; - return 0; - } else { - /* need to use put_user() in this case: */ - win = (struct reg_window32 __user *) regs->u_regs[UREG_FP]; - return (put_user(result, &win->locals[reg - 16])); - } -} - -/* Should return 0 if mul/div emulation succeeded and SIGILL should - * not be issued. - */ -int do_user_muldiv(struct pt_regs *regs, unsigned long pc) -{ - unsigned int insn; - int inst; - unsigned int rs1, rs2, rdv; - - if (!pc) - return -1; /* This happens to often, I think */ - if (get_user (insn, (unsigned int __user *)pc)) - return -1; - if ((insn & 0xc1400000) != 0x80400000) - return -1; - inst = ((insn >> 19) & 0xf); - if ((inst & 0xe) != 10 && (inst & 0xe) != 14) - return -1; - - /* Now we know we have to do something with umul, smul, udiv or sdiv */ - rs1 = (insn >> 14) & 0x1f; - rs2 = insn & 0x1f; - rdv = (insn >> 25) & 0x1f; - if (has_imm13(insn)) { - maybe_flush_windows(rs1, 0, rdv); - rs2 = sign_extend_imm13(insn); - } else { - maybe_flush_windows(rs1, rs2, rdv); - rs2 = fetch_reg(rs2, regs); - } - rs1 = fetch_reg(rs1, regs); - switch (inst) { - case 10: /* umul */ -#ifdef DEBUG_MULDIV - printk ("unsigned muldiv: 0x%x * 0x%x = ", rs1, rs2); -#endif - __asm__ __volatile__ ("\n\t" - "mov %0, %%o0\n\t" - "call .umul\n\t" - " mov %1, %%o1\n\t" - "mov %%o0, %0\n\t" - "mov %%o1, %1\n\t" - : "=r" (rs1), "=r" (rs2) - : "0" (rs1), "1" (rs2) - : "o0", "o1", "o2", "o3", "o4", "o5", "o7", "cc"); -#ifdef DEBUG_MULDIV - printk ("0x%x%08x\n", rs2, rs1); -#endif - if (store_reg(rs1, rdv, regs)) - return -1; - regs->y = rs2; - break; - case 11: /* smul */ -#ifdef DEBUG_MULDIV - printk ("signed muldiv: 0x%x * 0x%x = ", rs1, rs2); -#endif - __asm__ __volatile__ ("\n\t" - "mov %0, %%o0\n\t" - "call .mul\n\t" - " mov %1, %%o1\n\t" - "mov %%o0, %0\n\t" - "mov %%o1, %1\n\t" - : "=r" (rs1), "=r" (rs2) - : "0" (rs1), "1" (rs2) - : "o0", "o1", "o2", "o3", "o4", "o5", "o7", "cc"); -#ifdef DEBUG_MULDIV - printk ("0x%x%08x\n", rs2, rs1); -#endif - if (store_reg(rs1, rdv, regs)) - return -1; - regs->y = rs2; - break; - case 14: /* udiv */ -#ifdef DEBUG_MULDIV - printk ("unsigned muldiv: 0x%x%08x / 0x%x = ", regs->y, rs1, rs2); -#endif - if (!rs2) { -#ifdef DEBUG_MULDIV - printk ("DIVISION BY ZERO\n"); -#endif - handle_hw_divzero (regs, pc, regs->npc, regs->psr); - return 0; - } - __asm__ __volatile__ ("\n\t" - "mov %2, %%o0\n\t" - "mov %0, %%o1\n\t" - "mov %%g0, %%o2\n\t" - "call __udivdi3\n\t" - " mov %1, %%o3\n\t" - "mov %%o1, %0\n\t" - "mov %%o0, %1\n\t" - : "=r" (rs1), "=r" (rs2) - : "r" (regs->y), "0" (rs1), "1" (rs2) - : "o0", "o1", "o2", "o3", "o4", "o5", "o7", - "g1", "g2", "g3", "cc"); -#ifdef DEBUG_MULDIV - printk ("0x%x\n", rs1); -#endif - if (store_reg(rs1, rdv, regs)) - return -1; - break; - case 15: /* sdiv */ -#ifdef DEBUG_MULDIV - printk ("signed muldiv: 0x%x%08x / 0x%x = ", regs->y, rs1, rs2); -#endif - if (!rs2) { -#ifdef DEBUG_MULDIV - printk ("DIVISION BY ZERO\n"); -#endif - handle_hw_divzero (regs, pc, regs->npc, regs->psr); - return 0; - } - __asm__ __volatile__ ("\n\t" - "mov %2, %%o0\n\t" - "mov %0, %%o1\n\t" - "mov %%g0, %%o2\n\t" - "call __divdi3\n\t" - " mov %1, %%o3\n\t" - "mov %%o1, %0\n\t" - "mov %%o0, %1\n\t" - : "=r" (rs1), "=r" (rs2) - : "r" (regs->y), "0" (rs1), "1" (rs2) - : "o0", "o1", "o2", "o3", "o4", "o5", "o7", - "g1", "g2", "g3", "cc"); -#ifdef DEBUG_MULDIV - printk ("0x%x\n", rs1); -#endif - if (store_reg(rs1, rdv, regs)) - return -1; - break; - } - if (is_foocc (insn)) { - regs->psr &= ~PSR_ICC; - if ((inst & 0xe) == 14) { - /* ?div */ - if (rs2) regs->psr |= PSR_V; - } - if (!rs1) regs->psr |= PSR_Z; - if (((int)rs1) < 0) regs->psr |= PSR_N; -#ifdef DEBUG_MULDIV - printk ("psr muldiv: %08x\n", regs->psr); -#endif - } - advance(regs); - return 0; -} diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c index 4ee8ce0d5d8..185aa96fa5b 100644 --- a/arch/sparc/kernel/of_device_32.c +++ b/arch/sparc/kernel/of_device_32.c @@ -356,7 +356,7 @@ static struct platform_device * __init scan_one_device(struct device_node *dp, op->archdata.num_irqs = len / sizeof(struct linux_prom_irqs); for (i = 0; i < op->archdata.num_irqs; i++) op->archdata.irqs[i] = - sparc_irq_config.build_device_irq(op, intr[i].pri); + sparc_config.build_device_irq(op, intr[i].pri); } else { const unsigned int *irq = of_get_property(dp, "interrupts", &len); @@ -365,7 +365,7 @@ static struct platform_device * __init scan_one_device(struct device_node *dp, op->archdata.num_irqs = len / sizeof(unsigned int); for (i = 0; i < op->archdata.num_irqs; i++) op->archdata.irqs[i] = - sparc_irq_config.build_device_irq(op, irq[i]); + sparc_config.build_device_irq(op, irq[i]); } else { op->archdata.num_irqs = 0; } diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c index fcc148effaa..ded3f6090c3 100644 --- a/arch/sparc/kernel/pcic.c +++ b/arch/sparc/kernel/pcic.c @@ -703,31 +703,28 @@ static void pcic_clear_clock_irq(void) pcic_timer_dummy = readl(pcic0.pcic_regs+PCI_SYS_LIMIT); } -static irqreturn_t pcic_timer_handler (int irq, void *h) +/* CPU frequency is 100 MHz, timer increments every 4 CPU clocks */ +#define USECS_PER_JIFFY (1000000 / HZ) +#define TICK_TIMER_LIMIT ((100 * 1000000 / 4) / HZ) + +static unsigned int pcic_cycles_offset(void) { - pcic_clear_clock_irq(); - xtime_update(1); -#ifndef CONFIG_SMP - update_process_times(user_mode(get_irq_regs())); -#endif - return IRQ_HANDLED; -} + u32 value, count; -#define USECS_PER_JIFFY 10000 /* We have 100HZ "standard" timer for sparc */ -#define TICK_TIMER_LIMIT ((100*1000000/4)/100) + value = readl(pcic0.pcic_regs + PCI_SYS_COUNTER); + count = value & ~PCI_SYS_COUNTER_OVERFLOW; -u32 pci_gettimeoffset(void) -{ + if (value & PCI_SYS_COUNTER_OVERFLOW) + count += TICK_TIMER_LIMIT; /* - * We divide all by 100 + * We divide all by HZ * to have microsecond resolution and to avoid overflow */ - unsigned long count = - readl(pcic0.pcic_regs+PCI_SYS_COUNTER) & ~PCI_SYS_COUNTER_OVERFLOW; - count = ((count/100)*USECS_PER_JIFFY) / (TICK_TIMER_LIMIT/100); - return count * 1000; -} + count = ((count / HZ) * USECS_PER_JIFFY) / (TICK_TIMER_LIMIT / HZ); + /* Coordinate with the sparc_config.clock_rate setting */ + return count * 2; +} void __init pci_time_init(void) { @@ -736,9 +733,16 @@ void __init pci_time_init(void) int timer_irq, irq; int err; - do_arch_gettimeoffset = pci_gettimeoffset; - - btfixup(); +#ifndef CONFIG_SMP + /* + * The clock_rate is in SBUS dimension. + * We take into account this in pcic_cycles_offset() + */ + sparc_config.clock_rate = SBUS_CLOCK_RATE / HZ; + sparc_config.features |= FEAT_L10_CLOCKEVENT; +#endif + sparc_config.features |= FEAT_L10_CLOCKSOURCE; + sparc_config.get_cycles_offset = pcic_cycles_offset; writel (TICK_TIMER_LIMIT, pcic->pcic_regs+PCI_SYS_LIMIT); /* PROM should set appropriate irq */ @@ -747,7 +751,7 @@ void __init pci_time_init(void) writel (PCI_COUNTER_IRQ_SET(timer_irq, 0), pcic->pcic_regs+PCI_COUNTER_IRQ); irq = pcic_build_device_irq(NULL, timer_irq); - err = request_irq(irq, pcic_timer_handler, + err = request_irq(irq, timer_interrupt, IRQF_TIMER, "timer", NULL); if (err) { prom_printf("time_init: unable to attach IRQ%d\n", timer_irq); @@ -875,10 +879,9 @@ static void pcic_load_profile_irq(int cpu, unsigned int limit) void __init sun4m_pci_init_IRQ(void) { - sparc_irq_config.build_device_irq = pcic_build_device_irq; - - BTFIXUPSET_CALL(clear_clock_irq, pcic_clear_clock_irq, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(load_profile_irq, pcic_load_profile_irq, BTFIXUPCALL_NORM); + sparc_config.build_device_irq = pcic_build_device_irq; + sparc_config.clear_clock_irq = pcic_clear_clock_irq; + sparc_config.load_profile_irq = pcic_load_profile_irq; } int pcibios_assign_resource(struct pci_dev *pdev, int resource) diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c index 28559ce5eeb..5713957dcb8 100644 --- a/arch/sparc/kernel/perf_event.c +++ b/arch/sparc/kernel/perf_event.c @@ -1296,8 +1296,6 @@ static int __kprobes perf_event_nmi_handler(struct notifier_block *self, regs = args->regs; - perf_sample_data_init(&data, 0); - cpuc = &__get_cpu_var(cpu_hw_events); /* If the PMU has the TOE IRQ enable bits, we need to do a @@ -1321,7 +1319,7 @@ static int __kprobes perf_event_nmi_handler(struct notifier_block *self, if (val & (1ULL << 31)) continue; - data.period = event->hw.last_period; + perf_sample_data_init(&data, 0, hwc->last_period); if (!sparc_perf_event_set_period(event, hwc, idx)) continue; diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c index efa07542e85..fe6787cc62f 100644 --- a/arch/sparc/kernel/process_32.c +++ b/arch/sparc/kernel/process_32.c @@ -67,8 +67,6 @@ struct thread_info *current_set[NR_CPUS]; #ifndef CONFIG_SMP -#define SUN4C_FAULT_HIGH 100 - /* * the idle loop on a Sparc... ;) */ @@ -76,36 +74,6 @@ void cpu_idle(void) { /* endless idle loop with no priority at all */ for (;;) { - if (ARCH_SUN4C) { - static int count = HZ; - static unsigned long last_jiffies; - static unsigned long last_faults; - static unsigned long fps; - unsigned long now; - unsigned long faults; - - extern unsigned long sun4c_kernel_faults; - extern void sun4c_grow_kernel_ring(void); - - local_irq_disable(); - now = jiffies; - count -= (now - last_jiffies); - last_jiffies = now; - if (count < 0) { - count += HZ; - faults = sun4c_kernel_faults; - fps = (fps + (faults - last_faults)) >> 1; - last_faults = faults; -#if 0 - printk("kernel faults / second = %ld\n", fps); -#endif - if (fps >= SUN4C_FAULT_HIGH) { - sun4c_grow_kernel_ring(); - } - } - local_irq_enable(); - } - if (pm_idle) { while (!need_resched()) (*pm_idle)(); @@ -114,7 +82,6 @@ void cpu_idle(void) cpu_relax(); } schedule_preempt_disabled(); - check_pgt_cache(); } } @@ -137,7 +104,6 @@ void cpu_idle(void) cpu_relax(); } schedule_preempt_disabled(); - check_pgt_cache(); } } @@ -179,88 +145,6 @@ void machine_power_off(void) machine_halt(); } -#if 0 - -static DEFINE_SPINLOCK(sparc_backtrace_lock); - -void __show_backtrace(unsigned long fp) -{ - struct reg_window32 *rw; - unsigned long flags; - int cpu = smp_processor_id(); - - spin_lock_irqsave(&sparc_backtrace_lock, flags); - - rw = (struct reg_window32 *)fp; - while(rw && (((unsigned long) rw) >= PAGE_OFFSET) && - !(((unsigned long) rw) & 0x7)) { - printk("CPU[%d]: ARGS[%08lx,%08lx,%08lx,%08lx,%08lx,%08lx] " - "FP[%08lx] CALLER[%08lx]: ", cpu, - rw->ins[0], rw->ins[1], rw->ins[2], rw->ins[3], - rw->ins[4], rw->ins[5], - rw->ins[6], - rw->ins[7]); - printk("%pS\n", (void *) rw->ins[7]); - rw = (struct reg_window32 *) rw->ins[6]; - } - spin_unlock_irqrestore(&sparc_backtrace_lock, flags); -} - -#define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t") -#define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t") -#define __GET_FP(fp) __asm__ __volatile__("mov %%i6, %0" : "=r" (fp)) - -void show_backtrace(void) -{ - unsigned long fp; - - __SAVE; __SAVE; __SAVE; __SAVE; - __SAVE; __SAVE; __SAVE; __SAVE; - __RESTORE; __RESTORE; __RESTORE; __RESTORE; - __RESTORE; __RESTORE; __RESTORE; __RESTORE; - - __GET_FP(fp); - - __show_backtrace(fp); -} - -#ifdef CONFIG_SMP -void smp_show_backtrace_all_cpus(void) -{ - xc0((smpfunc_t) show_backtrace); - show_backtrace(); -} -#endif - -void show_stackframe(struct sparc_stackf *sf) -{ - unsigned long size; - unsigned long *stk; - int i; - - printk("l0: %08lx l1: %08lx l2: %08lx l3: %08lx " - "l4: %08lx l5: %08lx l6: %08lx l7: %08lx\n", - sf->locals[0], sf->locals[1], sf->locals[2], sf->locals[3], - sf->locals[4], sf->locals[5], sf->locals[6], sf->locals[7]); - printk("i0: %08lx i1: %08lx i2: %08lx i3: %08lx " - "i4: %08lx i5: %08lx fp: %08lx i7: %08lx\n", - sf->ins[0], sf->ins[1], sf->ins[2], sf->ins[3], - sf->ins[4], sf->ins[5], (unsigned long)sf->fp, sf->callers_pc); - printk("sp: %08lx x0: %08lx x1: %08lx x2: %08lx " - "x3: %08lx x4: %08lx x5: %08lx xx: %08lx\n", - (unsigned long)sf->structptr, sf->xargs[0], sf->xargs[1], - sf->xargs[2], sf->xargs[3], sf->xargs[4], sf->xargs[5], - sf->xxargs[0]); - size = ((unsigned long)sf->fp) - ((unsigned long)sf); - size -= STACKFRAME_SZ; - stk = (unsigned long *)((unsigned long)sf + STACKFRAME_SZ); - i = 0; - do { - printk("s%d: %08lx\n", i++, *stk++); - } while ((size -= sizeof(unsigned long))); -} -#endif - void show_regs(struct pt_regs *r) { struct reg_window32 *rw = (struct reg_window32 *) r->u_regs[14]; diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c index 6f97c076799..484dabac704 100644 --- a/arch/sparc/kernel/ptrace_64.c +++ b/arch/sparc/kernel/ptrace_64.c @@ -1062,7 +1062,7 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs) int ret = 0; /* do the secure computing check first */ - secure_computing(regs->u_regs[UREG_G1]); + secure_computing_strict(regs->u_regs[UREG_G1]); if (test_thread_flag(TIF_SYSCALL_TRACE)) ret = tracehook_report_syscall_entry(regs); diff --git a/arch/sparc/kernel/rtrap_32.S b/arch/sparc/kernel/rtrap_32.S index 5f5f74c2c2c..7abc24e2bf1 100644 --- a/arch/sparc/kernel/rtrap_32.S +++ b/arch/sparc/kernel/rtrap_32.S @@ -128,13 +128,12 @@ rtrap_patch2: and %glob_tmp, 0xff, %glob_tmp wr %glob_tmp, 0x0, %wim - /* Here comes the architecture specific - * branch to the user stack checking routine - * for return from traps. - */ - .globl rtrap_mmu_patchme -rtrap_mmu_patchme: b sun4c_rett_stackchk - andcc %fp, 0x7, %g0 + /* Here comes the architecture specific + * branch to the user stack checking routine + * for return from traps. + */ + b srmmu_rett_stackchk + andcc %fp, 0x7, %g0 ret_trap_userwins_ok: LOAD_PT_PRIV(sp, t_psr, t_pc, t_npc) @@ -225,69 +224,6 @@ ret_trap_user_stack_is_bolixed: b signal_p ld [%curptr + TI_FLAGS], %g2 -sun4c_rett_stackchk: - be 1f - and %fp, 0xfff, %g1 ! delay slot - - b ret_trap_user_stack_is_bolixed + 0x4 - wr %t_wim, 0x0, %wim - - /* See if we have to check the sanity of one page or two */ -1: - add %g1, 0x38, %g1 - sra %fp, 29, %g2 - add %g2, 0x1, %g2 - andncc %g2, 0x1, %g0 - be 1f - andncc %g1, 0xff8, %g0 - - /* %sp is in vma hole, yuck */ - b ret_trap_user_stack_is_bolixed + 0x4 - wr %t_wim, 0x0, %wim - -1: - be sun4c_rett_onepage /* Only one page to check */ - lda [%fp] ASI_PTE, %g2 - -sun4c_rett_twopages: - add %fp, 0x38, %g1 - sra %g1, 29, %g2 - add %g2, 0x1, %g2 - andncc %g2, 0x1, %g0 - be 1f - lda [%g1] ASI_PTE, %g2 - - /* Second page is in vma hole */ - b ret_trap_user_stack_is_bolixed + 0x4 - wr %t_wim, 0x0, %wim - -1: - srl %g2, 29, %g2 - andcc %g2, 0x4, %g0 - bne sun4c_rett_onepage - lda [%fp] ASI_PTE, %g2 - - /* Second page has bad perms */ - b ret_trap_user_stack_is_bolixed + 0x4 - wr %t_wim, 0x0, %wim - -sun4c_rett_onepage: - srl %g2, 29, %g2 - andcc %g2, 0x4, %g0 - bne,a 1f - restore %g0, %g0, %g0 - - /* A page had bad page permissions, losing... */ - b ret_trap_user_stack_is_bolixed + 0x4 - wr %t_wim, 0x0, %wim - - /* Whee, things are ok, load the window and continue. */ -1: - LOAD_WINDOW(sp) - - b ret_trap_userwins_ok - save %g0, %g0, %g0 - .globl srmmu_rett_stackchk srmmu_rett_stackchk: bne ret_trap_user_stack_is_bolixed diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S index 9171fc238de..afa2a9e3d0a 100644 --- a/arch/sparc/kernel/rtrap_64.S +++ b/arch/sparc/kernel/rtrap_64.S @@ -73,18 +73,8 @@ rtrap_nmi: ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 .globl rtrap_irq, rtrap, irqsz_patchme, rtrap_xcall rtrap_irq: rtrap: -#ifndef CONFIG_SMP - sethi %hi(__cpu_data), %l0 - lduw [%l0 + %lo(__cpu_data)], %l1 -#else - sethi %hi(__cpu_data), %l0 - or %l0, %lo(__cpu_data), %l0 - lduw [%l0 + %g5], %l1 -#endif - cmp %l1, 0 - /* mm/ultra.S:xcall_report_regs KNOWS about this load. */ - ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 + ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1 rtrap_xcall: sethi %hi(0xf << 20), %l4 and %l1, %l4, %l4 diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c index d444468b27f..c052313f4dc 100644 --- a/arch/sparc/kernel/setup_32.c +++ b/arch/sparc/kernel/setup_32.c @@ -42,7 +42,6 @@ #include <asm/vaddrs.h> #include <asm/mbus.h> #include <asm/idprom.h> -#include <asm/machines.h> #include <asm/cpudata.h> #include <asm/setup.h> #include <asm/cacheflush.h> @@ -106,7 +105,6 @@ unsigned long cmdline_memory_size __initdata = 0; /* which CPU booted us (0xff = not set) */ unsigned char boot_cpu_id = 0xff; /* 0xff will make it into DATA section... */ -unsigned char boot_cpu_id4; /* boot_cpu_id << 2 */ static void prom_console_write(struct console *con, const char *s, unsigned n) @@ -182,13 +180,6 @@ static void __init boot_flags_init(char *commands) } } -/* This routine will in the future do all the nasty prom stuff - * to probe for the mmu type and its parameters, etc. This will - * also be where SMP things happen. - */ - -extern void sun4c_probe_vac(void); - extern unsigned short root_flags; extern unsigned short root_dev; extern unsigned short ram_flags; @@ -200,6 +191,52 @@ extern int root_mountflags; char reboot_command[COMMAND_LINE_SIZE]; +struct cpuid_patch_entry { + unsigned int addr; + unsigned int sun4d[3]; + unsigned int leon[3]; +}; +extern struct cpuid_patch_entry __cpuid_patch, __cpuid_patch_end; + +static void __init per_cpu_patch(void) +{ + struct cpuid_patch_entry *p; + + if (sparc_cpu_model == sun4m) { + /* Nothing to do, this is what the unpatched code + * targets. + */ + return; + } + + p = &__cpuid_patch; + while (p < &__cpuid_patch_end) { + unsigned long addr = p->addr; + unsigned int *insns; + + switch (sparc_cpu_model) { + case sun4d: + insns = &p->sun4d[0]; + break; + + case sparc_leon: + insns = &p->leon[0]; + break; + default: + prom_printf("Unknown cpu type, halting.\n"); + prom_halt(); + } + *(unsigned int *) (addr + 0) = insns[0]; + flushi(addr + 0); + *(unsigned int *) (addr + 4) = insns[1]; + flushi(addr + 4); + *(unsigned int *) (addr + 8) = insns[2]; + flushi(addr + 8); + + p++; + } +} + enum sparc_cpu sparc_cpu_model; EXPORT_SYMBOL(sparc_cpu_model); @@ -225,10 +262,6 @@ void __init setup_arch(char **cmdline_p) /* Set sparc_cpu_model */ sparc_cpu_model = sun_unknown; - if (!strcmp(&cputypval[0], "sun4 ")) - sparc_cpu_model = sun4; - if (!strcmp(&cputypval[0], "sun4c")) - sparc_cpu_model = sun4c; if (!strcmp(&cputypval[0], "sun4m")) sparc_cpu_model = sun4m; if (!strcmp(&cputypval[0], "sun4s")) @@ -244,12 +277,6 @@ void __init setup_arch(char **cmdline_p) printk("ARCH: "); switch(sparc_cpu_model) { - case sun4: - printk("SUN4\n"); - break; - case sun4c: - printk("SUN4C\n"); - break; case sun4m: printk("SUN4M\n"); break; @@ -275,8 +302,6 @@ void __init setup_arch(char **cmdline_p) #endif idprom_init(); - if (ARCH_SUN4C) - sun4c_probe_vac(); load_mmu(); phys_base = 0xffffffffUL; @@ -313,6 +338,9 @@ void __init setup_arch(char **cmdline_p) init_mm.context = (unsigned long) NO_CONTEXT; init_task.thread.kregs = &fake_swapper_regs; + /* Run-time patch instructions to match the cpu model */ + per_cpu_patch(); + paging_init(); smp_setup_cpu_possible_map(); diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c index 1e750e415d7..ac8e66b50f0 100644 --- a/arch/sparc/kernel/signal_32.c +++ b/arch/sparc/kernel/signal_32.c @@ -217,12 +217,9 @@ segv: /* Checks if the fp is valid */ static inline int invalid_frame_pointer(void __user *fp, int fplen) { - if ((((unsigned long) fp) & 7) || - !__access_ok((unsigned long)fp, fplen) || - ((sparc_cpu_model == sun4 || sparc_cpu_model == sun4c) && - ((unsigned long) fp < 0xe0000000 && (unsigned long) fp >= 0x20000000))) + if ((((unsigned long) fp) & 7) || !__access_ok((unsigned long)fp, fplen)) return 1; - + return 0; } diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c index f671e7fd6dd..79db45e5134 100644 --- a/arch/sparc/kernel/smp_32.c +++ b/arch/sparc/kernel/smp_32.c @@ -40,6 +40,8 @@ volatile unsigned long cpu_callin_map[NR_CPUS] __cpuinitdata = {0,}; cpumask_t smp_commenced_mask = CPU_MASK_NONE; +const struct sparc32_ipi_ops *sparc32_ipi_ops; + /* The only guaranteed locking primitive available on all Sparc * processors is 'ldstub [%reg + immediate], %dest_reg' which atomically * places the current byte at the effective address into dest_reg and @@ -85,14 +87,6 @@ void __init smp_cpus_done(unsigned int max_cpus) (bogosum/(5000/HZ))%100); switch(sparc_cpu_model) { - case sun4: - printk("SUN4\n"); - BUG(); - break; - case sun4c: - printk("SUN4C\n"); - BUG(); - break; case sun4m: smp4m_smp_done(); break; @@ -132,7 +126,7 @@ void smp_send_reschedule(int cpu) * a single CPU. The trap handler needs only to do trap entry/return * to call schedule. */ - BTFIXUP_CALL(smp_ipi_resched)(cpu); + sparc32_ipi_ops->resched(cpu); } void smp_send_stop(void) @@ -142,7 +136,7 @@ void smp_send_stop(void) void arch_send_call_function_single_ipi(int cpu) { /* trigger one IPI single call on one CPU */ - BTFIXUP_CALL(smp_ipi_single)(cpu); + sparc32_ipi_ops->single(cpu); } void arch_send_call_function_ipi_mask(const struct cpumask *mask) @@ -151,7 +145,7 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask) /* trigger IPI mask call on each CPU */ for_each_cpu(cpu, mask) - BTFIXUP_CALL(smp_ipi_mask_one)(cpu); + sparc32_ipi_ops->mask_one(cpu); } void smp_resched_interrupt(void) @@ -179,150 +173,9 @@ void smp_call_function_interrupt(void) irq_exit(); } -void smp_flush_cache_all(void) -{ - xc0((smpfunc_t) BTFIXUP_CALL(local_flush_cache_all)); - local_flush_cache_all(); -} - -void smp_flush_tlb_all(void) -{ - xc0((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_all)); - local_flush_tlb_all(); -} - -void smp_flush_cache_mm(struct mm_struct *mm) -{ - if(mm->context != NO_CONTEXT) { - cpumask_t cpu_mask; - cpumask_copy(&cpu_mask, mm_cpumask(mm)); - cpumask_clear_cpu(smp_processor_id(), &cpu_mask); - if (!cpumask_empty(&cpu_mask)) - xc1((smpfunc_t) BTFIXUP_CALL(local_flush_cache_mm), (unsigned long) mm); - local_flush_cache_mm(mm); - } -} - -void smp_flush_tlb_mm(struct mm_struct *mm) -{ - if(mm->context != NO_CONTEXT) { - cpumask_t cpu_mask; - cpumask_copy(&cpu_mask, mm_cpumask(mm)); - cpumask_clear_cpu(smp_processor_id(), &cpu_mask); - if (!cpumask_empty(&cpu_mask)) { - xc1((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_mm), (unsigned long) mm); - if(atomic_read(&mm->mm_users) == 1 && current->active_mm == mm) - cpumask_copy(mm_cpumask(mm), - cpumask_of(smp_processor_id())); - } - local_flush_tlb_mm(mm); - } -} - -void smp_flush_cache_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end) -{ - struct mm_struct *mm = vma->vm_mm; - - if (mm->context != NO_CONTEXT) { - cpumask_t cpu_mask; - cpumask_copy(&cpu_mask, mm_cpumask(mm)); - cpumask_clear_cpu(smp_processor_id(), &cpu_mask); - if (!cpumask_empty(&cpu_mask)) - xc3((smpfunc_t) BTFIXUP_CALL(local_flush_cache_range), (unsigned long) vma, start, end); - local_flush_cache_range(vma, start, end); - } -} - -void smp_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end) -{ - struct mm_struct *mm = vma->vm_mm; - - if (mm->context != NO_CONTEXT) { - cpumask_t cpu_mask; - cpumask_copy(&cpu_mask, mm_cpumask(mm)); - cpumask_clear_cpu(smp_processor_id(), &cpu_mask); - if (!cpumask_empty(&cpu_mask)) - xc3((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_range), (unsigned long) vma, start, end); - local_flush_tlb_range(vma, start, end); - } -} - -void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page) -{ - struct mm_struct *mm = vma->vm_mm; - - if(mm->context != NO_CONTEXT) { - cpumask_t cpu_mask; - cpumask_copy(&cpu_mask, mm_cpumask(mm)); - cpumask_clear_cpu(smp_processor_id(), &cpu_mask); - if (!cpumask_empty(&cpu_mask)) - xc2((smpfunc_t) BTFIXUP_CALL(local_flush_cache_page), (unsigned long) vma, page); - local_flush_cache_page(vma, page); - } -} - -void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long page) -{ - struct mm_struct *mm = vma->vm_mm; - - if(mm->context != NO_CONTEXT) { - cpumask_t cpu_mask; - cpumask_copy(&cpu_mask, mm_cpumask(mm)); - cpumask_clear_cpu(smp_processor_id(), &cpu_mask); - if (!cpumask_empty(&cpu_mask)) - xc2((smpfunc_t) BTFIXUP_CALL(local_flush_tlb_page), (unsigned long) vma, page); - local_flush_tlb_page(vma, page); - } -} - -void smp_flush_page_to_ram(unsigned long page) -{ - /* Current theory is that those who call this are the one's - * who have just dirtied their cache with the pages contents - * in kernel space, therefore we only run this on local cpu. - * - * XXX This experiment failed, research further... -DaveM - */ -#if 1 - xc1((smpfunc_t) BTFIXUP_CALL(local_flush_page_to_ram), page); -#endif - local_flush_page_to_ram(page); -} - -void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr) -{ - cpumask_t cpu_mask; - cpumask_copy(&cpu_mask, mm_cpumask(mm)); - cpumask_clear_cpu(smp_processor_id(), &cpu_mask); - if (!cpumask_empty(&cpu_mask)) - xc2((smpfunc_t) BTFIXUP_CALL(local_flush_sig_insns), (unsigned long) mm, insn_addr); - local_flush_sig_insns(mm, insn_addr); -} - -extern unsigned int lvl14_resolution; - -/* /proc/profile writes can call this, don't __init it please. */ -static DEFINE_SPINLOCK(prof_setup_lock); - int setup_profiling_timer(unsigned int multiplier) { - int i; - unsigned long flags; - - /* Prevent level14 ticker IRQ flooding. */ - if((!multiplier) || (lvl14_resolution / multiplier) < 500) - return -EINVAL; - - spin_lock_irqsave(&prof_setup_lock, flags); - for_each_possible_cpu(i) { - load_profile_irq(i, lvl14_resolution / multiplier); - prof_multiplier(i) = multiplier; - } - spin_unlock_irqrestore(&prof_setup_lock, flags); - - return 0; + return -EINVAL; } void __init smp_prepare_cpus(unsigned int max_cpus) @@ -345,14 +198,6 @@ void __init smp_prepare_cpus(unsigned int max_cpus) smp_store_cpu_info(boot_cpu_id); switch(sparc_cpu_model) { - case sun4: - printk("SUN4\n"); - BUG(); - break; - case sun4c: - printk("SUN4C\n"); - BUG(); - break; case sun4m: smp4m_boot_cpus(); break; @@ -411,29 +256,21 @@ void __init smp_prepare_boot_cpu(void) set_cpu_possible(cpuid, true); } -int __cpuinit __cpu_up(unsigned int cpu) +int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) { - extern int __cpuinit smp4m_boot_one_cpu(int); - extern int __cpuinit smp4d_boot_one_cpu(int); + extern int __cpuinit smp4m_boot_one_cpu(int, struct task_struct *); + extern int __cpuinit smp4d_boot_one_cpu(int, struct task_struct *); int ret=0; switch(sparc_cpu_model) { - case sun4: - printk("SUN4\n"); - BUG(); - break; - case sun4c: - printk("SUN4C\n"); - BUG(); - break; case sun4m: - ret = smp4m_boot_one_cpu(cpu); + ret = smp4m_boot_one_cpu(cpu, tidle); break; case sun4d: - ret = smp4d_boot_one_cpu(cpu); + ret = smp4d_boot_one_cpu(cpu, tidle); break; case sparc_leon: - ret = leon_boot_one_cpu(cpu); + ret = leon_boot_one_cpu(cpu, tidle); break; case sun4e: printk("SUN4E\n"); diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c index 3b1bd7c5016..f591598d92f 100644 --- a/arch/sparc/kernel/smp_64.c +++ b/arch/sparc/kernel/smp_64.c @@ -343,21 +343,17 @@ extern unsigned long sparc64_cpu_startup; */ static struct thread_info *cpu_new_thread = NULL; -static int __cpuinit smp_boot_one_cpu(unsigned int cpu) +static int __cpuinit smp_boot_one_cpu(unsigned int cpu, struct task_struct *idle) { unsigned long entry = (unsigned long)(&sparc64_cpu_startup); unsigned long cookie = (unsigned long)(&cpu_new_thread); - struct task_struct *p; void *descr = NULL; int timeout, ret; - p = fork_idle(cpu); - if (IS_ERR(p)) - return PTR_ERR(p); callin_flag = 0; - cpu_new_thread = task_thread_info(p); + cpu_new_thread = task_thread_info(idle); if (tlb_type == hypervisor) { #if defined(CONFIG_SUN_LDOMS) && defined(CONFIG_HOTPLUG_CPU) @@ -1227,9 +1223,9 @@ void __devinit smp_fill_in_sib_core_maps(void) } } -int __cpuinit __cpu_up(unsigned int cpu) +int __cpuinit __cpu_up(unsigned int cpu, struct task_struct *tidle) { - int ret = smp_boot_one_cpu(cpu); + int ret = smp_boot_one_cpu(cpu, tidle); if (!ret) { cpumask_set_cpu(cpu, &smp_commenced_mask); diff --git a/arch/sparc/kernel/sparc_ksyms_32.c b/arch/sparc/kernel/sparc_ksyms_32.c index baeab872023..e521c54560f 100644 --- a/arch/sparc/kernel/sparc_ksyms_32.c +++ b/arch/sparc/kernel/sparc_ksyms_32.c @@ -28,19 +28,5 @@ EXPORT_SYMBOL(__ndelay); EXPORT_SYMBOL(__ret_efault); EXPORT_SYMBOL(empty_zero_page); -/* Defined using magic */ -#ifndef CONFIG_SMP -EXPORT_SYMBOL(BTFIXUP_CALL(___xchg32)); -#else -EXPORT_SYMBOL(BTFIXUP_CALL(__hard_smp_processor_id)); -#endif -EXPORT_SYMBOL(BTFIXUP_CALL(mmu_unlockarea)); -EXPORT_SYMBOL(BTFIXUP_CALL(mmu_lockarea)); -EXPORT_SYMBOL(BTFIXUP_CALL(mmu_get_scsi_sgl)); -EXPORT_SYMBOL(BTFIXUP_CALL(mmu_get_scsi_one)); -EXPORT_SYMBOL(BTFIXUP_CALL(mmu_release_scsi_sgl)); -EXPORT_SYMBOL(BTFIXUP_CALL(mmu_release_scsi_one)); -EXPORT_SYMBOL(BTFIXUP_CALL(pgprot_noncached)); - /* Exporting a symbol from /init/main.c */ EXPORT_SYMBOL(saved_command_line); diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c deleted file mode 100644 index f6bf25a2ff8..00000000000 --- a/arch/sparc/kernel/sun4c_irq.c +++ /dev/null @@ -1,264 +0,0 @@ -/* - * sun4c irq support - * - * djhr: Hacked out of irq.c into a CPU dependent version. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx) - * Copyright (C) 1995 Pete A. Zaitcev (zaitcev@yahoo.com) - * Copyright (C) 1996 Dave Redman (djhr@tadpole.co.uk) - */ - -#include <linux/init.h> - -#include <asm/oplib.h> -#include <asm/timer.h> -#include <asm/irq.h> -#include <asm/io.h> - -#include "irq.h" - -/* Sun4c interrupts are typically laid out as follows: - * - * 1 - Software interrupt, SBUS level 1 - * 2 - SBUS level 2 - * 3 - ESP SCSI, SBUS level 3 - * 4 - Software interrupt - * 5 - Lance ethernet, SBUS level 4 - * 6 - Software interrupt - * 7 - Graphics card, SBUS level 5 - * 8 - SBUS level 6 - * 9 - SBUS level 7 - * 10 - Counter timer - * 11 - Floppy - * 12 - Zilog uart - * 13 - CS4231 audio - * 14 - Profiling timer - * 15 - NMI - * - * The interrupt enable bits in the interrupt mask register are - * really only used to enable/disable the timer interrupts, and - * for signalling software interrupts. There is also a master - * interrupt enable bit in this register. - * - * Interrupts are enabled by setting the SUN4C_INT_* bits, they - * are disabled by clearing those bits. - */ - -/* - * Bit field defines for the interrupt registers on various - * Sparc machines. - */ - -/* The sun4c interrupt register. */ -#define SUN4C_INT_ENABLE 0x01 /* Allow interrupts. */ -#define SUN4C_INT_E14 0x80 /* Enable level 14 IRQ. */ -#define SUN4C_INT_E10 0x20 /* Enable level 10 IRQ. */ -#define SUN4C_INT_E8 0x10 /* Enable level 8 IRQ. */ -#define SUN4C_INT_E6 0x08 /* Enable level 6 IRQ. */ -#define SUN4C_INT_E4 0x04 /* Enable level 4 IRQ. */ -#define SUN4C_INT_E1 0x02 /* Enable level 1 IRQ. */ - -/* - * Pointer to the interrupt enable byte - * Used by entry.S - */ -unsigned char __iomem *interrupt_enable; - -static void sun4c_mask_irq(struct irq_data *data) -{ - unsigned long mask = (unsigned long)data->chip_data; - - if (mask) { - unsigned long flags; - - local_irq_save(flags); - mask = sbus_readb(interrupt_enable) & ~mask; - sbus_writeb(mask, interrupt_enable); - local_irq_restore(flags); - } -} - -static void sun4c_unmask_irq(struct irq_data *data) -{ - unsigned long mask = (unsigned long)data->chip_data; - - if (mask) { - unsigned long flags; - - local_irq_save(flags); - mask = sbus_readb(interrupt_enable) | mask; - sbus_writeb(mask, interrupt_enable); - local_irq_restore(flags); - } -} - -static unsigned int sun4c_startup_irq(struct irq_data *data) -{ - irq_link(data->irq); - sun4c_unmask_irq(data); - - return 0; -} - -static void sun4c_shutdown_irq(struct irq_data *data) -{ - sun4c_mask_irq(data); - irq_unlink(data->irq); -} - -static struct irq_chip sun4c_irq = { - .name = "sun4c", - .irq_startup = sun4c_startup_irq, - .irq_shutdown = sun4c_shutdown_irq, - .irq_mask = sun4c_mask_irq, - .irq_unmask = sun4c_unmask_irq, -}; - -static unsigned int sun4c_build_device_irq(struct platform_device *op, - unsigned int real_irq) -{ - unsigned int irq; - - if (real_irq >= 16) { - prom_printf("Bogus sun4c IRQ %u\n", real_irq); - prom_halt(); - } - - irq = irq_alloc(real_irq, real_irq); - if (irq) { - unsigned long mask = 0UL; - - switch (real_irq) { - case 1: - mask = SUN4C_INT_E1; - break; - case 8: - mask = SUN4C_INT_E8; - break; - case 10: - mask = SUN4C_INT_E10; - break; - case 14: - mask = SUN4C_INT_E14; - break; - default: - /* All the rest are either always enabled, - * or are for signalling software interrupts. - */ - break; - } - irq_set_chip_and_handler_name(irq, &sun4c_irq, - handle_level_irq, "level"); - irq_set_chip_data(irq, (void *)mask); - } - return irq; -} - -struct sun4c_timer_info { - u32 l10_count; - u32 l10_limit; - u32 l14_count; - u32 l14_limit; -}; - -static struct sun4c_timer_info __iomem *sun4c_timers; - -static void sun4c_clear_clock_irq(void) -{ - sbus_readl(&sun4c_timers->l10_limit); -} - -static void sun4c_load_profile_irq(int cpu, unsigned int limit) -{ - /* Errm.. not sure how to do this.. */ -} - -static void __init sun4c_init_timers(irq_handler_t counter_fn) -{ - const struct linux_prom_irqs *prom_irqs; - struct device_node *dp; - unsigned int irq; - const u32 *addr; - int err; - - dp = of_find_node_by_name(NULL, "counter-timer"); - if (!dp) { - prom_printf("sun4c_init_timers: Unable to find counter-timer\n"); - prom_halt(); - } - - addr = of_get_property(dp, "address", NULL); - if (!addr) { - prom_printf("sun4c_init_timers: No address property\n"); - prom_halt(); - } - - sun4c_timers = (void __iomem *) (unsigned long) addr[0]; - - prom_irqs = of_get_property(dp, "intr", NULL); - of_node_put(dp); - if (!prom_irqs) { - prom_printf("sun4c_init_timers: No intr property\n"); - prom_halt(); - } - - /* Have the level 10 timer tick at 100HZ. We don't touch the - * level 14 timer limit since we are letting the prom handle - * them until we have a real console driver so L1-A works. - */ - sbus_writel((((1000000/HZ) + 1) << 10), &sun4c_timers->l10_limit); - - master_l10_counter = &sun4c_timers->l10_count; - - irq = sun4c_build_device_irq(NULL, prom_irqs[0].pri); - err = request_irq(irq, counter_fn, IRQF_TIMER, "timer", NULL); - if (err) { - prom_printf("sun4c_init_timers: request_irq() fails with %d\n", err); - prom_halt(); - } - - /* disable timer interrupt */ - sun4c_mask_irq(irq_get_irq_data(irq)); -} - -#ifdef CONFIG_SMP -static void sun4c_nop(void) -{ -} -#endif - -void __init sun4c_init_IRQ(void) -{ - struct device_node *dp; - const u32 *addr; - - dp = of_find_node_by_name(NULL, "interrupt-enable"); - if (!dp) { - prom_printf("sun4c_init_IRQ: Unable to find interrupt-enable\n"); - prom_halt(); - } - - addr = of_get_property(dp, "address", NULL); - of_node_put(dp); - if (!addr) { - prom_printf("sun4c_init_IRQ: No address property\n"); - prom_halt(); - } - - interrupt_enable = (void __iomem *) (unsigned long) addr[0]; - - BTFIXUPSET_CALL(clear_clock_irq, sun4c_clear_clock_irq, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(load_profile_irq, sun4c_load_profile_irq, BTFIXUPCALL_NOP); - - sparc_irq_config.init_timers = sun4c_init_timers; - sparc_irq_config.build_device_irq = sun4c_build_device_irq; - -#ifdef CONFIG_SMP - BTFIXUPSET_CALL(set_cpu_int, sun4c_nop, BTFIXUPCALL_NOP); - BTFIXUPSET_CALL(clear_cpu_int, sun4c_nop, BTFIXUPCALL_NOP); - BTFIXUPSET_CALL(set_irq_udt, sun4c_nop, BTFIXUPCALL_NOP); -#endif - sbus_writeb(SUN4C_INT_ENABLE, interrupt_enable); - /* Cannot enable interrupts until OBP ticker is disabled. */ -} diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c index 1d13c5bda0b..e490ac9327c 100644 --- a/arch/sparc/kernel/sun4d_irq.c +++ b/arch/sparc/kernel/sun4d_irq.c @@ -15,6 +15,7 @@ #include <asm/sbi.h> #include <asm/cacheflush.h> #include <asm/setup.h> +#include <asm/oplib.h> #include "kernel.h" #include "irq.h" @@ -243,19 +244,6 @@ struct irq_chip sun4d_irq = { }; #ifdef CONFIG_SMP -static void sun4d_set_cpu_int(int cpu, int level) -{ - sun4d_send_ipi(cpu, level); -} - -static void sun4d_clear_ipi(int cpu, int level) -{ -} - -static void sun4d_set_udt(int cpu) -{ -} - /* Setup IRQ distribution scheme. */ void __init sun4d_distribute_irqs(void) { @@ -282,7 +270,8 @@ static void sun4d_clear_clock_irq(void) static void sun4d_load_profile_irq(int cpu, unsigned int limit) { - bw_set_prof_limit(cpu, limit); + unsigned int value = limit ? timer_value(limit) : 0; + bw_set_prof_limit(cpu, value); } static void __init sun4d_load_profile_irqs(void) @@ -418,12 +407,12 @@ static void __init sun4d_fixup_trap_table(void) trap_table->inst_two = lvl14_save[1]; trap_table->inst_three = lvl14_save[2]; trap_table->inst_four = lvl14_save[3]; - local_flush_cache_all(); + local_ops->cache_all(); local_irq_restore(flags); #endif } -static void __init sun4d_init_timers(irq_handler_t counter_fn) +static void __init sun4d_init_timers(void) { struct device_node *dp; struct resource res; @@ -466,12 +455,20 @@ static void __init sun4d_init_timers(irq_handler_t counter_fn) prom_halt(); } - sbus_writel((((1000000/HZ) + 1) << 10), &sun4d_timers->l10_timer_limit); +#ifdef CONFIG_SMP + sparc_config.cs_period = SBUS_CLOCK_RATE * 2; /* 2 seconds */ +#else + sparc_config.cs_period = SBUS_CLOCK_RATE / HZ; /* 1/HZ sec */ + sparc_config.features |= FEAT_L10_CLOCKEVENT; +#endif + sparc_config.features |= FEAT_L10_CLOCKSOURCE; + sbus_writel(timer_value(sparc_config.cs_period), + &sun4d_timers->l10_timer_limit); master_l10_counter = &sun4d_timers->l10_cur_count; irq = sun4d_build_timer_irq(board, SUN4D_TIMER_IRQ); - err = request_irq(irq, counter_fn, IRQF_TIMER, "timer", NULL); + err = request_irq(irq, timer_interrupt, IRQF_TIMER, "timer", NULL); if (err) { prom_printf("sun4d_init_timers: request_irq() failed with %d\n", err); @@ -509,16 +506,11 @@ void __init sun4d_init_IRQ(void) { local_irq_disable(); - BTFIXUPSET_CALL(clear_clock_irq, sun4d_clear_clock_irq, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(load_profile_irq, sun4d_load_profile_irq, BTFIXUPCALL_NORM); + sparc_config.init_timers = sun4d_init_timers; + sparc_config.build_device_irq = sun4d_build_device_irq; + sparc_config.clock_rate = SBUS_CLOCK_RATE; + sparc_config.clear_clock_irq = sun4d_clear_clock_irq; + sparc_config.load_profile_irq = sun4d_load_profile_irq; - sparc_irq_config.init_timers = sun4d_init_timers; - sparc_irq_config.build_device_irq = sun4d_build_device_irq; - -#ifdef CONFIG_SMP - BTFIXUPSET_CALL(set_cpu_int, sun4d_set_cpu_int, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(clear_cpu_int, sun4d_clear_ipi, BTFIXUPCALL_NOP); - BTFIXUPSET_CALL(set_irq_udt, sun4d_set_udt, BTFIXUPCALL_NOP); -#endif /* Cannot enable interrupts until OBP ticker is disabled. */ } diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c index 540b2fec09f..ddaea31de58 100644 --- a/arch/sparc/kernel/sun4d_smp.c +++ b/arch/sparc/kernel/sun4d_smp.c @@ -6,16 +6,20 @@ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) */ +#include <linux/clockchips.h> #include <linux/interrupt.h> #include <linux/profile.h> #include <linux/delay.h> +#include <linux/sched.h> #include <linux/cpu.h> +#include <asm/cacheflush.h> +#include <asm/switch_to.h> +#include <asm/tlbflush.h> +#include <asm/timer.h> +#include <asm/oplib.h> #include <asm/sbi.h> #include <asm/mmu.h> -#include <asm/tlbflush.h> -#include <asm/switch_to.h> -#include <asm/cacheflush.h> #include "kernel.h" #include "irq.h" @@ -34,7 +38,6 @@ static inline unsigned long sun4d_swap(volatile unsigned long *ptr, unsigned lon } static void smp4d_ipi_init(void); -static void smp_setup_percpu_timer(void); static unsigned char cpu_leds[32]; @@ -49,7 +52,7 @@ static inline void show_leds(int cpuid) void __cpuinit smp4d_callin(void) { - int cpuid = hard_smp4d_processor_id(); + int cpuid = hard_smp_processor_id(); unsigned long flags; /* Show we are alive */ @@ -59,8 +62,8 @@ void __cpuinit smp4d_callin(void) /* Enable level15 interrupt, disable level14 interrupt for now */ cc_set_imsk((cc_get_imsk() & ~0x8000) | 0x4000); - local_flush_cache_all(); - local_flush_tlb_all(); + local_ops->cache_all(); + local_ops->tlb_all(); notify_cpu_starting(cpuid); /* @@ -70,17 +73,17 @@ void __cpuinit smp4d_callin(void) * to call the scheduler code. */ /* Get our local ticker going. */ - smp_setup_percpu_timer(); + register_percpu_ce(cpuid); calibrate_delay(); smp_store_cpu_info(cpuid); - local_flush_cache_all(); - local_flush_tlb_all(); + local_ops->cache_all(); + local_ops->tlb_all(); /* Allow master to continue. */ sun4d_swap((unsigned long *)&cpu_callin_map[cpuid], 1); - local_flush_cache_all(); - local_flush_tlb_all(); + local_ops->cache_all(); + local_ops->tlb_all(); while ((unsigned long)current_set[cpuid] < PAGE_OFFSET) barrier(); @@ -100,8 +103,8 @@ void __cpuinit smp4d_callin(void) atomic_inc(&init_mm.mm_count); current->active_mm = &init_mm; - local_flush_cache_all(); - local_flush_tlb_all(); + local_ops->cache_all(); + local_ops->tlb_all(); local_irq_enable(); /* We don't allow PIL 14 yet */ @@ -123,22 +126,17 @@ void __init smp4d_boot_cpus(void) smp4d_ipi_init(); if (boot_cpu_id) current_set[0] = NULL; - smp_setup_percpu_timer(); - local_flush_cache_all(); + local_ops->cache_all(); } -int __cpuinit smp4d_boot_one_cpu(int i) +int __cpuinit smp4d_boot_one_cpu(int i, struct task_struct *idle) { unsigned long *entry = &sun4d_cpu_startup; - struct task_struct *p; int timeout; int cpu_node; cpu_find_by_instance(i, &cpu_node, NULL); - /* Cook up an idler for this guy. */ - p = fork_idle(i); - current_set[i] = task_thread_info(p); - + current_set[i] = task_thread_info(idle); /* * Initialize the contexts table * Since the call to prom_startcpu() trashes the structure, @@ -150,7 +148,7 @@ int __cpuinit smp4d_boot_one_cpu(int i) /* whirrr, whirrr, whirrrrrrrrr... */ printk(KERN_INFO "Starting CPU %d at %p\n", i, entry); - local_flush_cache_all(); + local_ops->cache_all(); prom_startcpu(cpu_node, &smp_penguin_ctable, 0, (char *)entry); @@ -168,7 +166,7 @@ int __cpuinit smp4d_boot_one_cpu(int i) return -ENODEV; } - local_flush_cache_all(); + local_ops->cache_all(); return 0; } @@ -185,7 +183,7 @@ void __init smp4d_smp_done(void) prev = &cpu_data(i).next; } *prev = first; - local_flush_cache_all(); + local_ops->cache_all(); /* Ok, they are spinning and ready to go. */ smp_processors_ready = 1; @@ -233,7 +231,20 @@ void sun4d_ipi_interrupt(void) } } -static void smp4d_ipi_single(int cpu) +/* +-------+-------------+-----------+------------------------------------+ + * | bcast | devid | sid | levels mask | + * +-------+-------------+-----------+------------------------------------+ + * 31 30 23 22 15 14 0 + */ +#define IGEN_MESSAGE(bcast, devid, sid, levels) \ + (((bcast) << 31) | ((devid) << 23) | ((sid) << 15) | (levels)) + +static void sun4d_send_ipi(int cpu, int level) +{ + cc_set_igen(IGEN_MESSAGE(0, cpu << 3, 6 + ((level >> 1) & 7), 1 << (level - 1))); +} + +static void sun4d_ipi_single(int cpu) { struct sun4d_ipi_work *work = &per_cpu(sun4d_ipi_work, cpu); @@ -244,7 +255,7 @@ static void smp4d_ipi_single(int cpu) sun4d_send_ipi(cpu, SUN4D_IPI_IRQ); } -static void smp4d_ipi_mask_one(int cpu) +static void sun4d_ipi_mask_one(int cpu) { struct sun4d_ipi_work *work = &per_cpu(sun4d_ipi_work, cpu); @@ -255,7 +266,7 @@ static void smp4d_ipi_mask_one(int cpu) sun4d_send_ipi(cpu, SUN4D_IPI_IRQ); } -static void smp4d_ipi_resched(int cpu) +static void sun4d_ipi_resched(int cpu) { struct sun4d_ipi_work *work = &per_cpu(sun4d_ipi_work, cpu); @@ -280,7 +291,7 @@ static struct smp_funcall { static DEFINE_SPINLOCK(cross_call_lock); /* Cross calls must be serialized, at least currently. */ -static void smp4d_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, +static void sun4d_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4) { @@ -352,7 +363,7 @@ static void smp4d_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, /* Running cross calls. */ void smp4d_cross_call_irq(void) { - int i = hard_smp4d_processor_id(); + int i = hard_smp_processor_id(); ccall_info.processors_in[i] = 1; ccall_info.func(ccall_info.arg1, ccall_info.arg2, ccall_info.arg3, @@ -363,7 +374,8 @@ void smp4d_cross_call_irq(void) void smp4d_percpu_timer_interrupt(struct pt_regs *regs) { struct pt_regs *old_regs; - int cpu = hard_smp4d_processor_id(); + int cpu = hard_smp_processor_id(); + struct clock_event_device *ce; static int cpu_tick[NR_CPUS]; static char led_mask[] = { 0xe, 0xd, 0xb, 0x7, 0xb, 0xd }; @@ -379,45 +391,21 @@ void smp4d_percpu_timer_interrupt(struct pt_regs *regs) show_leds(cpu); } - profile_tick(CPU_PROFILING); - - if (!--prof_counter(cpu)) { - int user = user_mode(regs); + ce = &per_cpu(sparc32_clockevent, cpu); - irq_enter(); - update_process_times(user); - irq_exit(); + irq_enter(); + ce->event_handler(ce); + irq_exit(); - prof_counter(cpu) = prof_multiplier(cpu); - } set_irq_regs(old_regs); } -static void __cpuinit smp_setup_percpu_timer(void) -{ - int cpu = hard_smp4d_processor_id(); - - prof_counter(cpu) = prof_multiplier(cpu) = 1; - load_profile_irq(cpu, lvl14_resolution); -} - -void __init smp4d_blackbox_id(unsigned *addr) -{ - int rd = *addr & 0x3e000000; - - addr[0] = 0xc0800800 | rd; /* lda [%g0] ASI_M_VIKING_TMP1, reg */ - addr[1] = 0x01000000; /* nop */ - addr[2] = 0x01000000; /* nop */ -} - -void __init smp4d_blackbox_current(unsigned *addr) -{ - int rd = *addr & 0x3e000000; - - addr[0] = 0xc0800800 | rd; /* lda [%g0] ASI_M_VIKING_TMP1, reg */ - addr[2] = 0x81282002 | rd | (rd >> 11); /* sll reg, 2, reg */ - addr[4] = 0x01000000; /* nop */ -} +static const struct sparc32_ipi_ops sun4d_ipi_ops = { + .cross_call = sun4d_cross_call, + .resched = sun4d_ipi_resched, + .single = sun4d_ipi_single, + .mask_one = sun4d_ipi_mask_one, +}; void __init sun4d_init_smp(void) { @@ -426,14 +414,7 @@ void __init sun4d_init_smp(void) /* Patch ipi15 trap table */ t_nmi[1] = t_nmi[1] + (linux_trap_ipi15_sun4d - linux_trap_ipi15_sun4m); - /* And set btfixup... */ - BTFIXUPSET_BLACKBOX(hard_smp_processor_id, smp4d_blackbox_id); - BTFIXUPSET_BLACKBOX(load_current, smp4d_blackbox_current); - BTFIXUPSET_CALL(smp_cross_call, smp4d_cross_call, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(__hard_smp_processor_id, __smp4d_processor_id, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(smp_ipi_resched, smp4d_ipi_resched, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(smp_ipi_single, smp4d_ipi_single, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(smp_ipi_mask_one, smp4d_ipi_mask_one, BTFIXUPCALL_NORM); + sparc32_ipi_ops = &sun4d_ipi_ops; for (i = 0; i < NR_CPUS; i++) { ccall_info.processors_in[i] = 1; diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c index e61165161dd..c5ade9d27a1 100644 --- a/arch/sparc/kernel/sun4m_irq.c +++ b/arch/sparc/kernel/sun4m_irq.c @@ -112,9 +112,6 @@ struct sun4m_handler_data { #define SUN4M_INT_E14 0x00000080 #define SUN4M_INT_E10 0x00080000 -#define SUN4M_HARD_INT(x) (0x000000001 << (x)) -#define SUN4M_SOFT_INT(x) (0x000010000 << (x)) - #define SUN4M_INT_MASKALL 0x80000000 /* mask all interrupts */ #define SUN4M_INT_MODULE_ERR 0x40000000 /* module error */ #define SUN4M_INT_M2S_WRITE_ERR 0x20000000 /* write buffer error */ @@ -282,23 +279,6 @@ out: return irq; } -#ifdef CONFIG_SMP -static void sun4m_send_ipi(int cpu, int level) -{ - sbus_writel(SUN4M_SOFT_INT(level), &sun4m_irq_percpu[cpu]->set); -} - -static void sun4m_clear_ipi(int cpu, int level) -{ - sbus_writel(SUN4M_SOFT_INT(level), &sun4m_irq_percpu[cpu]->clear); -} - -static void sun4m_set_udt(int cpu) -{ - sbus_writel(cpu, &sun4m_irq_global->interrupt_target); -} -#endif - struct sun4m_timer_percpu { u32 l14_limit; u32 l14_count; @@ -318,9 +298,6 @@ struct sun4m_timer_global { static struct sun4m_timer_global __iomem *timers_global; - -unsigned int lvl14_resolution = (((1000000/HZ) + 1) << 10); - static void sun4m_clear_clock_irq(void) { sbus_readl(&timers_global->l10_limit); @@ -369,10 +346,11 @@ void sun4m_clear_profile_irq(int cpu) static void sun4m_load_profile_irq(int cpu, unsigned int limit) { - sbus_writel(limit, &timers_percpu[cpu]->l14_limit); + unsigned int value = limit ? timer_value(limit) : 0; + sbus_writel(value, &timers_percpu[cpu]->l14_limit); } -static void __init sun4m_init_timers(irq_handler_t counter_fn) +static void __init sun4m_init_timers(void) { struct device_node *dp = of_find_node_by_name(NULL, "counter"); int i, err, len, num_cpu_timers; @@ -402,13 +380,22 @@ static void __init sun4m_init_timers(irq_handler_t counter_fn) /* Every per-cpu timer works in timer mode */ sbus_writel(0x00000000, &timers_global->timer_config); - sbus_writel((((1000000/HZ) + 1) << 10), &timers_global->l10_limit); +#ifdef CONFIG_SMP + sparc_config.cs_period = SBUS_CLOCK_RATE * 2; /* 2 seconds */ + sparc_config.features |= FEAT_L14_ONESHOT; +#else + sparc_config.cs_period = SBUS_CLOCK_RATE / HZ; /* 1/HZ sec */ + sparc_config.features |= FEAT_L10_CLOCKEVENT; +#endif + sparc_config.features |= FEAT_L10_CLOCKSOURCE; + sbus_writel(timer_value(sparc_config.cs_period), + &timers_global->l10_limit); master_l10_counter = &timers_global->l10_count; irq = sun4m_build_device_irq(NULL, SUN4M_TIMER_IRQ); - err = request_irq(irq, counter_fn, IRQF_TIMER, "timer", NULL); + err = request_irq(irq, timer_interrupt, IRQF_TIMER, "timer", NULL); if (err) { printk(KERN_ERR "sun4m_init_timers: Register IRQ error %d.\n", err); @@ -434,7 +421,7 @@ static void __init sun4m_init_timers(irq_handler_t counter_fn) trap_table->inst_two = lvl14_save[1]; trap_table->inst_three = lvl14_save[2]; trap_table->inst_four = lvl14_save[3]; - local_flush_cache_all(); + local_ops->cache_all(); local_irq_restore(flags); } #endif @@ -475,17 +462,12 @@ void __init sun4m_init_IRQ(void) if (num_cpu_iregs == 4) sbus_writel(0, &sun4m_irq_global->interrupt_target); - BTFIXUPSET_CALL(clear_clock_irq, sun4m_clear_clock_irq, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(load_profile_irq, sun4m_load_profile_irq, BTFIXUPCALL_NORM); - - sparc_irq_config.init_timers = sun4m_init_timers; - sparc_irq_config.build_device_irq = sun4m_build_device_irq; + sparc_config.init_timers = sun4m_init_timers; + sparc_config.build_device_irq = sun4m_build_device_irq; + sparc_config.clock_rate = SBUS_CLOCK_RATE; + sparc_config.clear_clock_irq = sun4m_clear_clock_irq; + sparc_config.load_profile_irq = sun4m_load_profile_irq; -#ifdef CONFIG_SMP - BTFIXUPSET_CALL(set_cpu_int, sun4m_send_ipi, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(clear_cpu_int, sun4m_clear_ipi, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(set_irq_udt, sun4m_set_udt, BTFIXUPCALL_NORM); -#endif /* Cannot enable interrupts until OBP ticker is disabled. */ } diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c index 02db9a0412c..128af730428 100644 --- a/arch/sparc/kernel/sun4m_smp.c +++ b/arch/sparc/kernel/sun4m_smp.c @@ -4,14 +4,18 @@ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) */ +#include <linux/clockchips.h> #include <linux/interrupt.h> #include <linux/profile.h> #include <linux/delay.h> +#include <linux/sched.h> #include <linux/cpu.h> #include <asm/cacheflush.h> #include <asm/switch_to.h> #include <asm/tlbflush.h> +#include <asm/timer.h> +#include <asm/oplib.h> #include "irq.h" #include "kernel.h" @@ -30,26 +34,22 @@ swap_ulong(volatile unsigned long *ptr, unsigned long val) return val; } -static void smp4m_ipi_init(void); -static void smp_setup_percpu_timer(void); - void __cpuinit smp4m_callin(void) { int cpuid = hard_smp_processor_id(); - local_flush_cache_all(); - local_flush_tlb_all(); + local_ops->cache_all(); + local_ops->tlb_all(); notify_cpu_starting(cpuid); - /* Get our local ticker going. */ - smp_setup_percpu_timer(); + register_percpu_ce(cpuid); calibrate_delay(); smp_store_cpu_info(cpuid); - local_flush_cache_all(); - local_flush_tlb_all(); + local_ops->cache_all(); + local_ops->tlb_all(); /* * Unblock the master CPU _only_ when the scheduler state @@ -61,8 +61,8 @@ void __cpuinit smp4m_callin(void) swap_ulong(&cpu_callin_map[cpuid], 1); /* XXX: What's up with all the flushes? */ - local_flush_cache_all(); - local_flush_tlb_all(); + local_ops->cache_all(); + local_ops->tlb_all(); /* Fix idle thread fields. */ __asm__ __volatile__("ld [%0], %%g6\n\t" @@ -86,23 +86,19 @@ void __cpuinit smp4m_callin(void) */ void __init smp4m_boot_cpus(void) { - smp4m_ipi_init(); - smp_setup_percpu_timer(); - local_flush_cache_all(); + sun4m_unmask_profile_irq(); + local_ops->cache_all(); } -int __cpuinit smp4m_boot_one_cpu(int i) +int __cpuinit smp4m_boot_one_cpu(int i, struct task_struct *idle) { unsigned long *entry = &sun4m_cpu_startup; - struct task_struct *p; int timeout; int cpu_node; cpu_find_by_mid(i, &cpu_node); + current_set[i] = task_thread_info(idle); - /* Cook up an idler for this guy. */ - p = fork_idle(i); - current_set[i] = task_thread_info(p); /* See trampoline.S for details... */ entry += ((i - 1) * 3); @@ -117,7 +113,7 @@ int __cpuinit smp4m_boot_one_cpu(int i) /* whirrr, whirrr, whirrrrrrrrr... */ printk(KERN_INFO "Starting CPU %d at %p\n", i, entry); - local_flush_cache_all(); + local_ops->cache_all(); prom_startcpu(cpu_node, &smp_penguin_ctable, 0, (char *)entry); /* wheee... it's going... */ @@ -132,7 +128,7 @@ int __cpuinit smp4m_boot_one_cpu(int i) return -ENODEV; } - local_flush_cache_all(); + local_ops->cache_all(); return 0; } @@ -149,30 +145,29 @@ void __init smp4m_smp_done(void) prev = &cpu_data(i).next; } *prev = first; - local_flush_cache_all(); + local_ops->cache_all(); /* Ok, they are spinning and ready to go. */ } - -/* Initialize IPIs on the SUN4M SMP machine */ -static void __init smp4m_ipi_init(void) +static void sun4m_send_ipi(int cpu, int level) { + sbus_writel(SUN4M_SOFT_INT(level), &sun4m_irq_percpu[cpu]->set); } -static void smp4m_ipi_resched(int cpu) +static void sun4m_ipi_resched(int cpu) { - set_cpu_int(cpu, IRQ_IPI_RESCHED); + sun4m_send_ipi(cpu, IRQ_IPI_RESCHED); } -static void smp4m_ipi_single(int cpu) +static void sun4m_ipi_single(int cpu) { - set_cpu_int(cpu, IRQ_IPI_SINGLE); + sun4m_send_ipi(cpu, IRQ_IPI_SINGLE); } -static void smp4m_ipi_mask_one(int cpu) +static void sun4m_ipi_mask_one(int cpu) { - set_cpu_int(cpu, IRQ_IPI_MASK); + sun4m_send_ipi(cpu, IRQ_IPI_MASK); } static struct smp_funcall { @@ -189,7 +184,7 @@ static struct smp_funcall { static DEFINE_SPINLOCK(cross_call_lock); /* Cross calls must be serialized, at least currently. */ -static void smp4m_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, +static void sun4m_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, unsigned long arg2, unsigned long arg3, unsigned long arg4) { @@ -216,7 +211,7 @@ static void smp4m_cross_call(smpfunc_t func, cpumask_t mask, unsigned long arg1, if (cpumask_test_cpu(i, &mask)) { ccall_info.processors_in[i] = 0; ccall_info.processors_out[i] = 0; - set_cpu_int(i, IRQ_CROSS_CALL); + sun4m_send_ipi(i, IRQ_CROSS_CALL); } else { ccall_info.processors_in[i] = 1; ccall_info.processors_out[i] = 1; @@ -260,64 +255,33 @@ void smp4m_cross_call_irq(void) void smp4m_percpu_timer_interrupt(struct pt_regs *regs) { struct pt_regs *old_regs; + struct clock_event_device *ce; int cpu = smp_processor_id(); old_regs = set_irq_regs(regs); - sun4m_clear_profile_irq(cpu); - - profile_tick(CPU_PROFILING); + ce = &per_cpu(sparc32_clockevent, cpu); - if (!--prof_counter(cpu)) { - int user = user_mode(regs); + if (ce->mode & CLOCK_EVT_MODE_PERIODIC) + sun4m_clear_profile_irq(cpu); + else + sparc_config.load_profile_irq(cpu, 0); /* Is this needless? */ - irq_enter(); - update_process_times(user); - irq_exit(); + irq_enter(); + ce->event_handler(ce); + irq_exit(); - prof_counter(cpu) = prof_multiplier(cpu); - } set_irq_regs(old_regs); } -static void __cpuinit smp_setup_percpu_timer(void) -{ - int cpu = smp_processor_id(); - - prof_counter(cpu) = prof_multiplier(cpu) = 1; - load_profile_irq(cpu, lvl14_resolution); - - if (cpu == boot_cpu_id) - sun4m_unmask_profile_irq(); -} - -static void __init smp4m_blackbox_id(unsigned *addr) -{ - int rd = *addr & 0x3e000000; - int rs1 = rd >> 11; - - addr[0] = 0x81580000 | rd; /* rd %tbr, reg */ - addr[1] = 0x8130200c | rd | rs1; /* srl reg, 0xc, reg */ - addr[2] = 0x80082003 | rd | rs1; /* and reg, 3, reg */ -} - -static void __init smp4m_blackbox_current(unsigned *addr) -{ - int rd = *addr & 0x3e000000; - int rs1 = rd >> 11; - - addr[0] = 0x81580000 | rd; /* rd %tbr, reg */ - addr[2] = 0x8130200a | rd | rs1; /* srl reg, 0xa, reg */ - addr[4] = 0x8008200c | rd | rs1; /* and reg, 0xc, reg */ -} +static const struct sparc32_ipi_ops sun4m_ipi_ops = { + .cross_call = sun4m_cross_call, + .resched = sun4m_ipi_resched, + .single = sun4m_ipi_single, + .mask_one = sun4m_ipi_mask_one, +}; void __init sun4m_init_smp(void) { - BTFIXUPSET_BLACKBOX(hard_smp_processor_id, smp4m_blackbox_id); - BTFIXUPSET_BLACKBOX(load_current, smp4m_blackbox_current); - BTFIXUPSET_CALL(smp_cross_call, smp4m_cross_call, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(__hard_smp_processor_id, __smp4m_processor_id, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(smp_ipi_resched, smp4m_ipi_resched, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(smp_ipi_single, smp4m_ipi_single, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(smp_ipi_mask_one, smp4m_ipi_mask_one, BTFIXUPCALL_NORM); + sparc32_ipi_ops = &sun4m_ipi_ops; } diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c index 42b282fa611..627e89af1d7 100644 --- a/arch/sparc/kernel/sys_sparc_32.c +++ b/arch/sparc/kernel/sys_sparc_32.c @@ -53,8 +53,6 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi /* See asm-sparc/uaccess.h */ if (len > TASK_SIZE - PAGE_SIZE) return -ENOMEM; - if (ARCH_SUN4C && len > 0x20000000) - return -ENOMEM; if (!addr) addr = TASK_UNMAPPED_BASE; @@ -65,10 +63,6 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) { /* At this point: (!vmm || addr < vmm->vm_end). */ - if (ARCH_SUN4C && addr < 0xe0000000 && 0x20000000 - len < addr) { - addr = PAGE_OFFSET; - vmm = find_vma(current->mm, PAGE_OFFSET); - } if (TASK_SIZE - PAGE_SIZE - len < addr) return -ENOMEM; if (!vmm || addr + len <= vmm->vm_start) @@ -99,11 +93,6 @@ out: int sparc_mmap_check(unsigned long addr, unsigned long len) { - if (ARCH_SUN4C && - (len > 0x20000000 || - (addr < 0xe0000000 && addr + len > 0x20000000))) - return -EINVAL; - /* See asm-sparc/uaccess.h */ if (len > TASK_SIZE - PAGE_SIZE || addr + len > TASK_SIZE - PAGE_SIZE) return -EINVAL; diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index db86b1a0e9a..3a58e0d66f5 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -74,7 +74,7 @@ sys_call_table32: .word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy /*270*/ .word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink .word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid -/*280*/ .word sys32_tee, sys_add_key, sys_request_key, sys_keyctl, compat_sys_openat +/*280*/ .word sys32_tee, sys_add_key, sys_request_key, compat_sys_keyctl, compat_sys_openat .word sys_mkdirat, sys_mknodat, sys_fchownat, compat_sys_futimesat, compat_sys_fstatat64 /*290*/ .word sys_unlinkat, sys_renameat, sys_linkat, sys_symlinkat, sys_readlinkat .word sys_fchmodat, sys_faccessat, compat_sys_pselect6, compat_sys_ppoll, sys_unshare diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c index 7d0c088e8ab..953641549e8 100644 --- a/arch/sparc/kernel/time_32.c +++ b/arch/sparc/kernel/time_32.c @@ -26,6 +26,8 @@ #include <linux/rtc.h> #include <linux/rtc/m48t59.h> #include <linux/timex.h> +#include <linux/clocksource.h> +#include <linux/clockchips.h> #include <linux/init.h> #include <linux/pci.h> #include <linux/ioport.h> @@ -40,13 +42,24 @@ #include <asm/irq.h> #include <asm/io.h> #include <asm/idprom.h> -#include <asm/machines.h> #include <asm/page.h> #include <asm/pcic.h> #include <asm/irq_regs.h> +#include <asm/setup.h> #include "irq.h" +static __cacheline_aligned_in_smp DEFINE_SEQLOCK(timer_cs_lock); +static __volatile__ u64 timer_cs_internal_counter = 0; +static char timer_cs_enabled = 0; + +static struct clock_event_device timer_ce; +static char timer_ce_enabled = 0; + +#ifdef CONFIG_SMP +DEFINE_PER_CPU(struct clock_event_device, sparc32_clockevent); +#endif + DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL(rtc_lock); @@ -55,7 +68,6 @@ static int set_rtc_mmss(unsigned long); unsigned long profile_pc(struct pt_regs *regs) { extern char __copy_user_begin[], __copy_user_end[]; - extern char __atomic_begin[], __atomic_end[]; extern char __bzero_begin[], __bzero_end[]; unsigned long pc = regs->pc; @@ -63,8 +75,6 @@ unsigned long profile_pc(struct pt_regs *regs) if (in_lock_functions(pc) || (pc >= (unsigned long) __copy_user_begin && pc < (unsigned long) __copy_user_end) || - (pc >= (unsigned long) __atomic_begin && - pc < (unsigned long) __atomic_end) || (pc >= (unsigned long) __bzero_begin && pc < (unsigned long) __bzero_end)) pc = regs->u_regs[UREG_RETPC]; @@ -75,35 +85,167 @@ EXPORT_SYMBOL(profile_pc); __volatile__ unsigned int *master_l10_counter; -u32 (*do_arch_gettimeoffset)(void); - int update_persistent_clock(struct timespec now) { return set_rtc_mmss(now.tv_sec); } -/* - * timer_interrupt() needs to keep up the real-time clock, - * as well as call the "xtime_update()" routine every clocktick - */ +irqreturn_t notrace timer_interrupt(int dummy, void *dev_id) +{ + if (timer_cs_enabled) { + write_seqlock(&timer_cs_lock); + timer_cs_internal_counter++; + sparc_config.clear_clock_irq(); + write_sequnlock(&timer_cs_lock); + } else { + sparc_config.clear_clock_irq(); + } -#define TICK_SIZE (tick_nsec / 1000) + if (timer_ce_enabled) + timer_ce.event_handler(&timer_ce); -static irqreturn_t timer_interrupt(int dummy, void *dev_id) + return IRQ_HANDLED; +} + +static void timer_ce_set_mode(enum clock_event_mode mode, + struct clock_event_device *evt) { -#ifndef CONFIG_SMP - profile_tick(CPU_PROFILING); -#endif + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: + case CLOCK_EVT_MODE_RESUME: + timer_ce_enabled = 1; + break; + case CLOCK_EVT_MODE_SHUTDOWN: + timer_ce_enabled = 0; + break; + default: + break; + } + smp_mb(); +} - clear_clock_irq(); +static __init void setup_timer_ce(void) +{ + struct clock_event_device *ce = &timer_ce; - xtime_update(1); + BUG_ON(smp_processor_id() != boot_cpu_id); -#ifndef CONFIG_SMP - update_process_times(user_mode(get_irq_regs())); -#endif - return IRQ_HANDLED; + ce->name = "timer_ce"; + ce->rating = 100; + ce->features = CLOCK_EVT_FEAT_PERIODIC; + ce->set_mode = timer_ce_set_mode; + ce->cpumask = cpu_possible_mask; + ce->shift = 32; + ce->mult = div_sc(sparc_config.clock_rate, NSEC_PER_SEC, + ce->shift); + clockevents_register_device(ce); +} + +static unsigned int sbus_cycles_offset(void) +{ + unsigned int val, offset; + + val = *master_l10_counter; + offset = (val >> TIMER_VALUE_SHIFT) & TIMER_VALUE_MASK; + + /* Limit hit? */ + if (val & TIMER_LIMIT_BIT) + offset += sparc_config.cs_period; + + return offset; +} + +static cycle_t timer_cs_read(struct clocksource *cs) +{ + unsigned int seq, offset; + u64 cycles; + + do { + seq = read_seqbegin(&timer_cs_lock); + + cycles = timer_cs_internal_counter; + offset = sparc_config.get_cycles_offset(); + } while (read_seqretry(&timer_cs_lock, seq)); + + /* Count absolute cycles */ + cycles *= sparc_config.cs_period; + cycles += offset; + + return cycles; +} + +static struct clocksource timer_cs = { + .name = "timer_cs", + .rating = 100, + .read = timer_cs_read, + .mask = CLOCKSOURCE_MASK(64), + .shift = 2, + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +static __init int setup_timer_cs(void) +{ + timer_cs_enabled = 1; + timer_cs.mult = clocksource_hz2mult(sparc_config.clock_rate, + timer_cs.shift); + + return clocksource_register(&timer_cs); +} + +#ifdef CONFIG_SMP +static void percpu_ce_setup(enum clock_event_mode mode, + struct clock_event_device *evt) +{ + int cpu = __first_cpu(evt->cpumask); + + switch (mode) { + case CLOCK_EVT_MODE_PERIODIC: + sparc_config.load_profile_irq(cpu, + SBUS_CLOCK_RATE / HZ); + break; + case CLOCK_EVT_MODE_ONESHOT: + case CLOCK_EVT_MODE_SHUTDOWN: + case CLOCK_EVT_MODE_UNUSED: + sparc_config.load_profile_irq(cpu, 0); + break; + default: + break; + } +} + +static int percpu_ce_set_next_event(unsigned long delta, + struct clock_event_device *evt) +{ + int cpu = __first_cpu(evt->cpumask); + unsigned int next = (unsigned int)delta; + + sparc_config.load_profile_irq(cpu, next); + return 0; +} + +void register_percpu_ce(int cpu) +{ + struct clock_event_device *ce = &per_cpu(sparc32_clockevent, cpu); + unsigned int features = CLOCK_EVT_FEAT_PERIODIC; + + if (sparc_config.features & FEAT_L14_ONESHOT) + features |= CLOCK_EVT_FEAT_ONESHOT; + + ce->name = "percpu_ce"; + ce->rating = 200; + ce->features = features; + ce->set_mode = percpu_ce_setup; + ce->set_next_event = percpu_ce_set_next_event; + ce->cpumask = cpumask_of(cpu); + ce->shift = 32; + ce->mult = div_sc(sparc_config.clock_rate, NSEC_PER_SEC, + ce->shift); + ce->max_delta_ns = clockevent_delta2ns(sparc_config.clock_rate, ce); + ce->min_delta_ns = clockevent_delta2ns(100, ce); + + clockevents_register_device(ce); } +#endif static unsigned char mostek_read_byte(struct device *dev, u32 ofs) { @@ -195,38 +337,28 @@ static int __init clock_init(void) */ fs_initcall(clock_init); - -u32 sbus_do_gettimeoffset(void) -{ - unsigned long val = *master_l10_counter; - unsigned long usec = (val >> 10) & 0x1fffff; - - /* Limit hit? */ - if (val & 0x80000000) - usec += 1000000 / HZ; - - return usec * 1000; -} - - -u32 arch_gettimeoffset(void) +static void __init sparc32_late_time_init(void) { - if (unlikely(!do_arch_gettimeoffset)) - return 0; - return do_arch_gettimeoffset(); + if (sparc_config.features & FEAT_L10_CLOCKEVENT) + setup_timer_ce(); + if (sparc_config.features & FEAT_L10_CLOCKSOURCE) + setup_timer_cs(); +#ifdef CONFIG_SMP + register_percpu_ce(smp_processor_id()); +#endif } static void __init sbus_time_init(void) { - do_arch_gettimeoffset = sbus_do_gettimeoffset; - - btfixup(); - - sparc_irq_config.init_timers(timer_interrupt); + sparc_config.get_cycles_offset = sbus_cycles_offset; + sparc_config.init_timers(); } void __init time_init(void) { + sparc_config.features = 0; + late_time_init = sparc32_late_time_init; + if (pcic_present()) pci_time_init(); else diff --git a/arch/sparc/kernel/trampoline_32.S b/arch/sparc/kernel/trampoline_32.S index 691f484e03b..7364ddc9e5a 100644 --- a/arch/sparc/kernel/trampoline_32.S +++ b/arch/sparc/kernel/trampoline_32.S @@ -15,8 +15,8 @@ #include <asm/contregs.h> #include <asm/thread_info.h> - .globl sun4m_cpu_startup, __smp4m_processor_id, __leon_processor_id - .globl sun4d_cpu_startup, __smp4d_processor_id + .globl sun4m_cpu_startup + .globl sun4d_cpu_startup __CPUINIT .align 4 @@ -94,24 +94,6 @@ smp_do_cpu_idle: call cpu_panic nop -__smp4m_processor_id: - rd %tbr, %g2 - srl %g2, 12, %g2 - and %g2, 3, %g2 - retl - mov %g1, %o7 - -__smp4d_processor_id: - lda [%g0] ASI_M_VIKING_TMP1, %g2 - retl - mov %g1, %o7 - -__leon_processor_id: - rd %asr17,%g2 - srl %g2,28,%g2 - retl - mov %g1, %o7 - /* CPUID in bootbus can be found at PA 0xff0140000 */ #define SUN4D_BOOTBUS_CPUID 0xf0140000 diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c index d2de2133314..a5785ea2a85 100644 --- a/arch/sparc/kernel/traps_32.c +++ b/arch/sparc/kernel/traps_32.c @@ -120,8 +120,6 @@ void do_illegal_instruction(struct pt_regs *regs, unsigned long pc, unsigned lon printk("Ill instr. at pc=%08lx instruction is %08lx\n", regs->pc, *(unsigned long *)regs->pc); #endif - if (!do_user_muldiv (regs, pc)) - return; info.si_signo = SIGILL; info.si_errno = 0; diff --git a/arch/sparc/kernel/ttable_32.S b/arch/sparc/kernel/ttable_32.S new file mode 100644 index 00000000000..8a7a96ca676 --- /dev/null +++ b/arch/sparc/kernel/ttable_32.S @@ -0,0 +1,417 @@ +/* The Sparc trap table, bootloader gives us control at _start. */ + __HEAD + + .globl _start +_start: + + .globl _stext +_stext: + + .globl trapbase +trapbase: + +#ifdef CONFIG_SMP +trapbase_cpu0: +#endif +/* We get control passed to us here at t_zero. */ +t_zero: b gokernel; nop; nop; nop; +t_tflt: SRMMU_TFAULT /* Inst. Access Exception */ +t_bins: TRAP_ENTRY(0x2, bad_instruction) /* Illegal Instruction */ +t_pins: TRAP_ENTRY(0x3, priv_instruction) /* Privileged Instruction */ +t_fpd: TRAP_ENTRY(0x4, fpd_trap_handler) /* Floating Point Disabled */ +t_wovf: WINDOW_SPILL /* Window Overflow */ +t_wunf: WINDOW_FILL /* Window Underflow */ +t_mna: TRAP_ENTRY(0x7, mna_handler) /* Memory Address Not Aligned */ +t_fpe: TRAP_ENTRY(0x8, fpe_trap_handler) /* Floating Point Exception */ +t_dflt: SRMMU_DFAULT /* Data Miss Exception */ +t_tio: TRAP_ENTRY(0xa, do_tag_overflow) /* Tagged Instruction Ovrflw */ +t_wpt: TRAP_ENTRY(0xb, do_watchpoint) /* Watchpoint Detected */ +t_badc: BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10) +t_irq1: TRAP_ENTRY_INTERRUPT(1) /* IRQ Software/SBUS Level 1 */ +t_irq2: TRAP_ENTRY_INTERRUPT(2) /* IRQ SBUS Level 2 */ +t_irq3: TRAP_ENTRY_INTERRUPT(3) /* IRQ SCSI/DMA/SBUS Level 3 */ +t_irq4: TRAP_ENTRY_INTERRUPT(4) /* IRQ Software Level 4 */ +t_irq5: TRAP_ENTRY_INTERRUPT(5) /* IRQ SBUS/Ethernet Level 5 */ +t_irq6: TRAP_ENTRY_INTERRUPT(6) /* IRQ Software Level 6 */ +t_irq7: TRAP_ENTRY_INTERRUPT(7) /* IRQ Video/SBUS Level 5 */ +t_irq8: TRAP_ENTRY_INTERRUPT(8) /* IRQ SBUS Level 6 */ +t_irq9: TRAP_ENTRY_INTERRUPT(9) /* IRQ SBUS Level 7 */ +t_irq10:TRAP_ENTRY_INTERRUPT(10) /* IRQ Timer #1 (one we use) */ +t_irq11:TRAP_ENTRY_INTERRUPT(11) /* IRQ Floppy Intr. */ +t_irq12:TRAP_ENTRY_INTERRUPT(12) /* IRQ Zilog serial chip */ +t_irq13:TRAP_ENTRY_INTERRUPT(13) /* IRQ Audio Intr. */ +t_irq14:TRAP_ENTRY_INTERRUPT(14) /* IRQ Timer #2 */ + + .globl t_nmi +t_nmi: TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m) + +t_racc: TRAP_ENTRY(0x20, do_reg_access) /* General Register Access Error */ +t_iacce:BAD_TRAP(0x21) /* Instr Access Error */ +t_bad22:BAD_TRAP(0x22) + BAD_TRAP(0x23) +t_cpdis:TRAP_ENTRY(0x24, do_cp_disabled) /* Co-Processor Disabled */ +t_uflsh:SKIP_TRAP(0x25, unimp_flush) /* Unimplemented FLUSH inst. */ +t_bad26:BAD_TRAP(0x26) BAD_TRAP(0x27) +t_cpexc:TRAP_ENTRY(0x28, do_cp_exception) /* Co-Processor Exception */ +t_dacce:SRMMU_DFAULT /* Data Access Error */ +t_hwdz: TRAP_ENTRY(0x2a, do_hw_divzero) /* Division by zero, you lose... */ +t_dserr:BAD_TRAP(0x2b) /* Data Store Error */ +t_daccm:BAD_TRAP(0x2c) /* Data Access MMU-Miss */ +t_bad2d:BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31) +t_bad32:BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36) +t_bad37:BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b) +t_iaccm:BAD_TRAP(0x3c) /* Instr Access MMU-Miss */ +t_bad3d:BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) BAD_TRAP(0x41) +t_bad42:BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) BAD_TRAP(0x46) +t_bad47:BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) BAD_TRAP(0x4b) +t_bad4c:BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) BAD_TRAP(0x50) +t_bad51:BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55) +t_bad56:BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a) +t_bad5b:BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f) +t_bad60:BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64) +t_bad65:BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69) +t_bad6a:BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e) +t_bad6f:BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73) +t_bad74:BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78) +t_bad79:BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d) +t_bad7e:BAD_TRAP(0x7e) BAD_TRAP(0x7f) +t_bad80:BAD_TRAP(0x80) /* SunOS System Call */ +t_sbkpt:BREAKPOINT_TRAP /* Software Breakpoint/KGDB */ +t_divz: TRAP_ENTRY(0x82, do_hw_divzero) /* Divide by zero trap */ +t_flwin:TRAP_ENTRY(0x83, do_flush_windows) /* Flush Windows Trap */ +t_clwin:BAD_TRAP(0x84) /* Clean Windows Trap */ +t_rchk: BAD_TRAP(0x85) /* Range Check */ +t_funal:BAD_TRAP(0x86) /* Fix Unaligned Access Trap */ +t_iovf: BAD_TRAP(0x87) /* Integer Overflow Trap */ +t_bad88:BAD_TRAP(0x88) /* Slowaris System Call */ +t_bad89:BAD_TRAP(0x89) /* Net-B.S. System Call */ +t_bad8a:BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) BAD_TRAP(0x8d) BAD_TRAP(0x8e) +t_bad8f:BAD_TRAP(0x8f) +t_linux:LINUX_SYSCALL_TRAP /* Linux System Call */ +t_bad91:BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) BAD_TRAP(0x95) +t_bad96:BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) BAD_TRAP(0x9a) +t_bad9b:BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) BAD_TRAP(0x9f) +t_getcc:GETCC_TRAP /* Get Condition Codes */ +t_setcc:SETCC_TRAP /* Set Condition Codes */ +t_getpsr:GETPSR_TRAP /* Get PSR Register */ +t_bada3:BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6) +t_bada7:BAD_TRAP(0xa7) +t_bada8:BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab) +t_badac:BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0) +t_badb1:BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5) +t_badb6:BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba) +t_badbb:BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf) +t_badc0:BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4) +t_badc5:BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9) +t_badca:BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce) +t_badcf:BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3) +t_badd4:BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8) +t_badd9:BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd) +t_badde:BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2) +t_bade3:BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7) +t_bade8:BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec) +t_baded:BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1) +t_badf2:BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6) +t_badf7:BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb) +t_badfc:BAD_TRAP(0xfc) +t_kgdb: KGDB_TRAP(0xfd) +dbtrap: BAD_TRAP(0xfe) /* Debugger/PROM breakpoint #1 */ +dbtrap2:BAD_TRAP(0xff) /* Debugger/PROM breakpoint #2 */ + + .globl end_traptable +end_traptable: + +#ifdef CONFIG_SMP + /* Trap tables for the other cpus. */ + .globl trapbase_cpu1, trapbase_cpu2, trapbase_cpu3 +trapbase_cpu1: + BAD_TRAP(0x0) + SRMMU_TFAULT + TRAP_ENTRY(0x2, bad_instruction) + TRAP_ENTRY(0x3, priv_instruction) + TRAP_ENTRY(0x4, fpd_trap_handler) + WINDOW_SPILL + WINDOW_FILL + TRAP_ENTRY(0x7, mna_handler) + TRAP_ENTRY(0x8, fpe_trap_handler) + SRMMU_DFAULT + TRAP_ENTRY(0xa, do_tag_overflow) + TRAP_ENTRY(0xb, do_watchpoint) + BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10) + TRAP_ENTRY_INTERRUPT(1) TRAP_ENTRY_INTERRUPT(2) + TRAP_ENTRY_INTERRUPT(3) TRAP_ENTRY_INTERRUPT(4) + TRAP_ENTRY_INTERRUPT(5) TRAP_ENTRY_INTERRUPT(6) + TRAP_ENTRY_INTERRUPT(7) TRAP_ENTRY_INTERRUPT(8) + TRAP_ENTRY_INTERRUPT(9) TRAP_ENTRY_INTERRUPT(10) + TRAP_ENTRY_INTERRUPT(11) TRAP_ENTRY_INTERRUPT(12) + TRAP_ENTRY_INTERRUPT(13) TRAP_ENTRY_INTERRUPT(14) + TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m) + TRAP_ENTRY(0x20, do_reg_access) + BAD_TRAP(0x21) + BAD_TRAP(0x22) + BAD_TRAP(0x23) + TRAP_ENTRY(0x24, do_cp_disabled) + SKIP_TRAP(0x25, unimp_flush) + BAD_TRAP(0x26) + BAD_TRAP(0x27) + TRAP_ENTRY(0x28, do_cp_exception) + SRMMU_DFAULT + TRAP_ENTRY(0x2a, do_hw_divzero) + BAD_TRAP(0x2b) + BAD_TRAP(0x2c) + BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31) + BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36) + BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b) + BAD_TRAP(0x3c) BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) + BAD_TRAP(0x41) BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) + BAD_TRAP(0x46) BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) + BAD_TRAP(0x4b) BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) + BAD_TRAP(0x50) + BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55) + BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a) + BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f) + BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64) + BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69) + BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e) + BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73) + BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78) + BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d) + BAD_TRAP(0x7e) BAD_TRAP(0x7f) + BAD_TRAP(0x80) + BREAKPOINT_TRAP + TRAP_ENTRY(0x82, do_hw_divzero) + TRAP_ENTRY(0x83, do_flush_windows) + BAD_TRAP(0x84) BAD_TRAP(0x85) BAD_TRAP(0x86) + BAD_TRAP(0x87) BAD_TRAP(0x88) BAD_TRAP(0x89) + BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) + BAD_TRAP(0x8d) BAD_TRAP(0x8e) BAD_TRAP(0x8f) + LINUX_SYSCALL_TRAP BAD_TRAP(0x91) + BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) + BAD_TRAP(0x95) BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) + BAD_TRAP(0x9a) BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) + BAD_TRAP(0x9f) + GETCC_TRAP + SETCC_TRAP + GETPSR_TRAP + BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6) + BAD_TRAP(0xa7) BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab) + BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0) + BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5) + BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba) + BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf) + BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4) + BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9) + BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce) + BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3) + BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8) + BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd) + BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2) + BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7) + BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec) + BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1) + BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6) + BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb) + BAD_TRAP(0xfc) + KGDB_TRAP(0xfd) + BAD_TRAP(0xfe) + BAD_TRAP(0xff) + +trapbase_cpu2: + BAD_TRAP(0x0) + SRMMU_TFAULT + TRAP_ENTRY(0x2, bad_instruction) + TRAP_ENTRY(0x3, priv_instruction) + TRAP_ENTRY(0x4, fpd_trap_handler) + WINDOW_SPILL + WINDOW_FILL + TRAP_ENTRY(0x7, mna_handler) + TRAP_ENTRY(0x8, fpe_trap_handler) + SRMMU_DFAULT + TRAP_ENTRY(0xa, do_tag_overflow) + TRAP_ENTRY(0xb, do_watchpoint) + BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10) + TRAP_ENTRY_INTERRUPT(1) + TRAP_ENTRY_INTERRUPT(2) + TRAP_ENTRY_INTERRUPT(3) + TRAP_ENTRY_INTERRUPT(4) + TRAP_ENTRY_INTERRUPT(5) + TRAP_ENTRY_INTERRUPT(6) + TRAP_ENTRY_INTERRUPT(7) + TRAP_ENTRY_INTERRUPT(8) + TRAP_ENTRY_INTERRUPT(9) + TRAP_ENTRY_INTERRUPT(10) + TRAP_ENTRY_INTERRUPT(11) + TRAP_ENTRY_INTERRUPT(12) + TRAP_ENTRY_INTERRUPT(13) + TRAP_ENTRY_INTERRUPT(14) + TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m) + TRAP_ENTRY(0x20, do_reg_access) + BAD_TRAP(0x21) + BAD_TRAP(0x22) + BAD_TRAP(0x23) + TRAP_ENTRY(0x24, do_cp_disabled) + SKIP_TRAP(0x25, unimp_flush) + BAD_TRAP(0x26) + BAD_TRAP(0x27) + TRAP_ENTRY(0x28, do_cp_exception) + SRMMU_DFAULT + TRAP_ENTRY(0x2a, do_hw_divzero) + BAD_TRAP(0x2b) + BAD_TRAP(0x2c) + BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31) + BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36) + BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b) + BAD_TRAP(0x3c) BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) + BAD_TRAP(0x41) BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) + BAD_TRAP(0x46) BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) + BAD_TRAP(0x4b) BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) + BAD_TRAP(0x50) + BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55) + BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a) + BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f) + BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64) + BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69) + BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e) + BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73) + BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78) + BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d) + BAD_TRAP(0x7e) BAD_TRAP(0x7f) + BAD_TRAP(0x80) + BREAKPOINT_TRAP + TRAP_ENTRY(0x82, do_hw_divzero) + TRAP_ENTRY(0x83, do_flush_windows) + BAD_TRAP(0x84) + BAD_TRAP(0x85) + BAD_TRAP(0x86) BAD_TRAP(0x87) BAD_TRAP(0x88) + BAD_TRAP(0x89) BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) + BAD_TRAP(0x8d) BAD_TRAP(0x8e) BAD_TRAP(0x8f) + LINUX_SYSCALL_TRAP BAD_TRAP(0x91) + BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) + BAD_TRAP(0x95) BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) + BAD_TRAP(0x9a) BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) + BAD_TRAP(0x9f) + GETCC_TRAP + SETCC_TRAP + GETPSR_TRAP + BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6) + BAD_TRAP(0xa7) BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab) + BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0) + BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5) + BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba) + BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf) + BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4) + BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9) + BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce) + BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3) + BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8) + BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd) + BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2) + BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7) + BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec) + BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1) + BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6) + BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb) + BAD_TRAP(0xfc) + KGDB_TRAP(0xfd) + BAD_TRAP(0xfe) + BAD_TRAP(0xff) + +trapbase_cpu3: + BAD_TRAP(0x0) + SRMMU_TFAULT + TRAP_ENTRY(0x2, bad_instruction) + TRAP_ENTRY(0x3, priv_instruction) + TRAP_ENTRY(0x4, fpd_trap_handler) + WINDOW_SPILL + WINDOW_FILL + TRAP_ENTRY(0x7, mna_handler) + TRAP_ENTRY(0x8, fpe_trap_handler) + SRMMU_DFAULT + TRAP_ENTRY(0xa, do_tag_overflow) + TRAP_ENTRY(0xb, do_watchpoint) + BAD_TRAP(0xc) BAD_TRAP(0xd) BAD_TRAP(0xe) BAD_TRAP(0xf) BAD_TRAP(0x10) + TRAP_ENTRY_INTERRUPT(1) + TRAP_ENTRY_INTERRUPT(2) + TRAP_ENTRY_INTERRUPT(3) + TRAP_ENTRY_INTERRUPT(4) + TRAP_ENTRY_INTERRUPT(5) + TRAP_ENTRY_INTERRUPT(6) + TRAP_ENTRY_INTERRUPT(7) + TRAP_ENTRY_INTERRUPT(8) + TRAP_ENTRY_INTERRUPT(9) + TRAP_ENTRY_INTERRUPT(10) + TRAP_ENTRY_INTERRUPT(11) + TRAP_ENTRY_INTERRUPT(12) + TRAP_ENTRY_INTERRUPT(13) + TRAP_ENTRY_INTERRUPT(14) + TRAP_ENTRY(0x1f, linux_trap_ipi15_sun4m) + TRAP_ENTRY(0x20, do_reg_access) + BAD_TRAP(0x21) + BAD_TRAP(0x22) + BAD_TRAP(0x23) + TRAP_ENTRY(0x24, do_cp_disabled) + SKIP_TRAP(0x25, unimp_flush) + BAD_TRAP(0x26) + BAD_TRAP(0x27) + TRAP_ENTRY(0x28, do_cp_exception) + SRMMU_DFAULT + TRAP_ENTRY(0x2a, do_hw_divzero) + BAD_TRAP(0x2b) BAD_TRAP(0x2c) + BAD_TRAP(0x2d) BAD_TRAP(0x2e) BAD_TRAP(0x2f) BAD_TRAP(0x30) BAD_TRAP(0x31) + BAD_TRAP(0x32) BAD_TRAP(0x33) BAD_TRAP(0x34) BAD_TRAP(0x35) BAD_TRAP(0x36) + BAD_TRAP(0x37) BAD_TRAP(0x38) BAD_TRAP(0x39) BAD_TRAP(0x3a) BAD_TRAP(0x3b) + BAD_TRAP(0x3c) BAD_TRAP(0x3d) BAD_TRAP(0x3e) BAD_TRAP(0x3f) BAD_TRAP(0x40) + BAD_TRAP(0x41) BAD_TRAP(0x42) BAD_TRAP(0x43) BAD_TRAP(0x44) BAD_TRAP(0x45) + BAD_TRAP(0x46) BAD_TRAP(0x47) BAD_TRAP(0x48) BAD_TRAP(0x49) BAD_TRAP(0x4a) + BAD_TRAP(0x4b) BAD_TRAP(0x4c) BAD_TRAP(0x4d) BAD_TRAP(0x4e) BAD_TRAP(0x4f) + BAD_TRAP(0x50) + BAD_TRAP(0x51) BAD_TRAP(0x52) BAD_TRAP(0x53) BAD_TRAP(0x54) BAD_TRAP(0x55) + BAD_TRAP(0x56) BAD_TRAP(0x57) BAD_TRAP(0x58) BAD_TRAP(0x59) BAD_TRAP(0x5a) + BAD_TRAP(0x5b) BAD_TRAP(0x5c) BAD_TRAP(0x5d) BAD_TRAP(0x5e) BAD_TRAP(0x5f) + BAD_TRAP(0x60) BAD_TRAP(0x61) BAD_TRAP(0x62) BAD_TRAP(0x63) BAD_TRAP(0x64) + BAD_TRAP(0x65) BAD_TRAP(0x66) BAD_TRAP(0x67) BAD_TRAP(0x68) BAD_TRAP(0x69) + BAD_TRAP(0x6a) BAD_TRAP(0x6b) BAD_TRAP(0x6c) BAD_TRAP(0x6d) BAD_TRAP(0x6e) + BAD_TRAP(0x6f) BAD_TRAP(0x70) BAD_TRAP(0x71) BAD_TRAP(0x72) BAD_TRAP(0x73) + BAD_TRAP(0x74) BAD_TRAP(0x75) BAD_TRAP(0x76) BAD_TRAP(0x77) BAD_TRAP(0x78) + BAD_TRAP(0x79) BAD_TRAP(0x7a) BAD_TRAP(0x7b) BAD_TRAP(0x7c) BAD_TRAP(0x7d) + BAD_TRAP(0x7e) BAD_TRAP(0x7f) + BAD_TRAP(0x80) + BREAKPOINT_TRAP + TRAP_ENTRY(0x82, do_hw_divzero) + TRAP_ENTRY(0x83, do_flush_windows) + BAD_TRAP(0x84) BAD_TRAP(0x85) + BAD_TRAP(0x86) BAD_TRAP(0x87) BAD_TRAP(0x88) + BAD_TRAP(0x89) BAD_TRAP(0x8a) BAD_TRAP(0x8b) BAD_TRAP(0x8c) + BAD_TRAP(0x8d) BAD_TRAP(0x8e) BAD_TRAP(0x8f) + LINUX_SYSCALL_TRAP + BAD_TRAP(0x91) BAD_TRAP(0x92) BAD_TRAP(0x93) BAD_TRAP(0x94) + BAD_TRAP(0x95) BAD_TRAP(0x96) BAD_TRAP(0x97) BAD_TRAP(0x98) BAD_TRAP(0x99) + BAD_TRAP(0x9a) BAD_TRAP(0x9b) BAD_TRAP(0x9c) BAD_TRAP(0x9d) BAD_TRAP(0x9e) + BAD_TRAP(0x9f) + GETCC_TRAP + SETCC_TRAP + GETPSR_TRAP + BAD_TRAP(0xa3) BAD_TRAP(0xa4) BAD_TRAP(0xa5) BAD_TRAP(0xa6) + BAD_TRAP(0xa7) BAD_TRAP(0xa8) BAD_TRAP(0xa9) BAD_TRAP(0xaa) BAD_TRAP(0xab) + BAD_TRAP(0xac) BAD_TRAP(0xad) BAD_TRAP(0xae) BAD_TRAP(0xaf) BAD_TRAP(0xb0) + BAD_TRAP(0xb1) BAD_TRAP(0xb2) BAD_TRAP(0xb3) BAD_TRAP(0xb4) BAD_TRAP(0xb5) + BAD_TRAP(0xb6) BAD_TRAP(0xb7) BAD_TRAP(0xb8) BAD_TRAP(0xb9) BAD_TRAP(0xba) + BAD_TRAP(0xbb) BAD_TRAP(0xbc) BAD_TRAP(0xbd) BAD_TRAP(0xbe) BAD_TRAP(0xbf) + BAD_TRAP(0xc0) BAD_TRAP(0xc1) BAD_TRAP(0xc2) BAD_TRAP(0xc3) BAD_TRAP(0xc4) + BAD_TRAP(0xc5) BAD_TRAP(0xc6) BAD_TRAP(0xc7) BAD_TRAP(0xc8) BAD_TRAP(0xc9) + BAD_TRAP(0xca) BAD_TRAP(0xcb) BAD_TRAP(0xcc) BAD_TRAP(0xcd) BAD_TRAP(0xce) + BAD_TRAP(0xcf) BAD_TRAP(0xd0) BAD_TRAP(0xd1) BAD_TRAP(0xd2) BAD_TRAP(0xd3) + BAD_TRAP(0xd4) BAD_TRAP(0xd5) BAD_TRAP(0xd6) BAD_TRAP(0xd7) BAD_TRAP(0xd8) + BAD_TRAP(0xd9) BAD_TRAP(0xda) BAD_TRAP(0xdb) BAD_TRAP(0xdc) BAD_TRAP(0xdd) + BAD_TRAP(0xde) BAD_TRAP(0xdf) BAD_TRAP(0xe0) BAD_TRAP(0xe1) BAD_TRAP(0xe2) + BAD_TRAP(0xe3) BAD_TRAP(0xe4) BAD_TRAP(0xe5) BAD_TRAP(0xe6) BAD_TRAP(0xe7) + BAD_TRAP(0xe8) BAD_TRAP(0xe9) BAD_TRAP(0xea) BAD_TRAP(0xeb) BAD_TRAP(0xec) + BAD_TRAP(0xed) BAD_TRAP(0xee) BAD_TRAP(0xef) BAD_TRAP(0xf0) BAD_TRAP(0xf1) + BAD_TRAP(0xf2) BAD_TRAP(0xf3) BAD_TRAP(0xf4) BAD_TRAP(0xf5) BAD_TRAP(0xf6) + BAD_TRAP(0xf7) BAD_TRAP(0xf8) BAD_TRAP(0xf9) BAD_TRAP(0xfa) BAD_TRAP(0xfb) + BAD_TRAP(0xfc) + KGDB_TRAP(0xfd) + BAD_TRAP(0xfe) + BAD_TRAP(0xff) + +#endif diff --git a/arch/sparc/kernel/ttable.S b/arch/sparc/kernel/ttable_64.S index c6dfdaa29e2..c6dfdaa29e2 100644 --- a/arch/sparc/kernel/ttable.S +++ b/arch/sparc/kernel/ttable_64.S diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c index dae85bc2eda..f81d038f734 100644 --- a/arch/sparc/kernel/unaligned_64.c +++ b/arch/sparc/kernel/unaligned_64.c @@ -21,7 +21,6 @@ #include <linux/bitops.h> #include <linux/perf_event.h> #include <linux/ratelimit.h> -#include <linux/bitops.h> #include <asm/fpumacro.h> #include <asm/cacheflush.h> diff --git a/arch/sparc/kernel/wof.S b/arch/sparc/kernel/wof.S index 3bbcd8dc9ab..4c2de3cf309 100644 --- a/arch/sparc/kernel/wof.S +++ b/arch/sparc/kernel/wof.S @@ -163,9 +163,8 @@ spwin_fromuser: * the label 'spwin_user_stack_is_bolixed' which will take * care of things at that point. */ - .globl spwin_mmu_patchme -spwin_mmu_patchme: b spwin_sun4c_stackchk - andcc %sp, 0x7, %g0 + b spwin_srmmu_stackchk + andcc %sp, 0x7, %g0 spwin_good_ustack: /* LOCATION: Window to be saved */ @@ -306,73 +305,6 @@ spwin_bad_ustack_from_kernel: * As noted above %curptr cannot be touched by this routine at all. */ -spwin_sun4c_stackchk: - /* LOCATION: Window to be saved on the stack */ - - /* See if the stack is in the address space hole but first, - * check results of callers andcc %sp, 0x7, %g0 - */ - be 1f - sra %sp, 29, %glob_tmp - - rd %psr, %glob_tmp - b spwin_user_stack_is_bolixed + 0x4 - nop - -1: - add %glob_tmp, 0x1, %glob_tmp - andncc %glob_tmp, 0x1, %g0 - be 1f - and %sp, 0xfff, %glob_tmp ! delay slot - - rd %psr, %glob_tmp - b spwin_user_stack_is_bolixed + 0x4 - nop - - /* See if our dump area will be on more than one - * page. - */ -1: - add %glob_tmp, 0x38, %glob_tmp - andncc %glob_tmp, 0xff8, %g0 - be spwin_sun4c_onepage ! only one page to check - lda [%sp] ASI_PTE, %glob_tmp ! have to check first page anyways - -spwin_sun4c_twopages: - /* Is first page ok permission wise? */ - srl %glob_tmp, 29, %glob_tmp - cmp %glob_tmp, 0x6 - be 1f - add %sp, 0x38, %glob_tmp /* Is second page in vma hole? */ - - rd %psr, %glob_tmp - b spwin_user_stack_is_bolixed + 0x4 - nop - -1: - sra %glob_tmp, 29, %glob_tmp - add %glob_tmp, 0x1, %glob_tmp - andncc %glob_tmp, 0x1, %g0 - be 1f - add %sp, 0x38, %glob_tmp - - rd %psr, %glob_tmp - b spwin_user_stack_is_bolixed + 0x4 - nop - -1: - lda [%glob_tmp] ASI_PTE, %glob_tmp - -spwin_sun4c_onepage: - srl %glob_tmp, 29, %glob_tmp - cmp %glob_tmp, 0x6 ! can user write to it? - be spwin_good_ustack ! success - nop - - rd %psr, %glob_tmp - b spwin_user_stack_is_bolixed + 0x4 - nop - /* This is a generic SRMMU routine. As far as I know this * works for all current v8/srmmu implementations, we'll * see... diff --git a/arch/sparc/kernel/wuf.S b/arch/sparc/kernel/wuf.S index 779ff750603..9fde91a249e 100644 --- a/arch/sparc/kernel/wuf.S +++ b/arch/sparc/kernel/wuf.S @@ -131,12 +131,9 @@ fwin_from_user: /* LOCATION: Window 'W' */ - /* Branch to the architecture specific stack validation - * routine. They can be found below... - */ - .globl fwin_mmu_patchme -fwin_mmu_patchme: b sun4c_fwin_stackchk - andcc %sp, 0x7, %g0 + /* Branch to the stack validation routine */ + b srmmu_fwin_stackchk + andcc %sp, 0x7, %g0 #define STACK_OFFSET (THREAD_SIZE - TRACEREG_SZ - STACKFRAME_SZ) @@ -242,57 +239,6 @@ fwin_user_finish_up: * 'someone elses' window possibly. */ - .align 4 -sun4c_fwin_stackchk: - /* LOCATION: Window 'W' */ - - /* Caller did 'andcc %sp, 0x7, %g0' */ - be 1f - and %sp, 0xfff, %l0 ! delay slot - - b,a fwin_user_stack_is_bolixed - - /* See if we have to check the sanity of one page or two */ -1: - add %l0, 0x38, %l0 - sra %sp, 29, %l5 - add %l5, 0x1, %l5 - andncc %l5, 0x1, %g0 - be 1f - andncc %l0, 0xff8, %g0 - - b,a fwin_user_stack_is_bolixed /* %sp is in vma hole, yuck */ - -1: - be sun4c_fwin_onepage /* Only one page to check */ - lda [%sp] ASI_PTE, %l1 -sun4c_fwin_twopages: - add %sp, 0x38, %l0 - sra %l0, 29, %l5 - add %l5, 0x1, %l5 - andncc %l5, 0x1, %g0 - be 1f - lda [%l0] ASI_PTE, %l1 - - b,a fwin_user_stack_is_bolixed /* Second page in vma hole */ - -1: - srl %l1, 29, %l1 - andcc %l1, 0x4, %g0 - bne sun4c_fwin_onepage - lda [%sp] ASI_PTE, %l1 - - b,a fwin_user_stack_is_bolixed /* Second page has bad perms */ - -sun4c_fwin_onepage: - srl %l1, 29, %l1 - andcc %l1, 0x4, %g0 - bne fwin_user_stack_is_ok - nop - - /* A page had bad page permissions, losing... */ - b,a fwin_user_stack_is_bolixed - .globl srmmu_fwin_stackchk srmmu_fwin_stackchk: /* LOCATION: Window 'W' */ diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile index a3fc4375a15..389628f50a1 100644 --- a/arch/sparc/lib/Makefile +++ b/arch/sparc/lib/Makefile @@ -4,7 +4,7 @@ asflags-y := -ansi -DST_DIV0=0x02 ccflags-y := -Werror -lib-$(CONFIG_SPARC32) += mul.o rem.o sdiv.o udiv.o umul.o urem.o ashrdi3.o +lib-$(CONFIG_SPARC32) += ashrdi3.o lib-$(CONFIG_SPARC32) += memcpy.o memset.o lib-y += strlen.o lib-y += checksum_$(BITS).o @@ -13,7 +13,7 @@ lib-y += memscan_$(BITS).o memcmp.o strncmp_$(BITS).o lib-y += strncpy_from_user_$(BITS).o strlen_user_$(BITS).o lib-$(CONFIG_SPARC32) += divdi3.o udivdi3.o lib-$(CONFIG_SPARC32) += copy_user.o locks.o -lib-y += atomic_$(BITS).o +lib-$(CONFIG_SPARC64) += atomic_64.o lib-$(CONFIG_SPARC32) += lshrdi3.o ashldi3.o lib-$(CONFIG_SPARC32) += muldi3.o bitext.o cmpdi2.o @@ -40,7 +40,7 @@ lib-$(CONFIG_SPARC64) += copy_in_user.o user_fixup.o memmove.o lib-$(CONFIG_SPARC64) += mcount.o ipcsum.o xor.o hweight.o ffs.o obj-y += iomap.o -obj-$(CONFIG_SPARC32) += atomic32.o +obj-$(CONFIG_SPARC32) += atomic32.o ucmpdi2.o obj-y += ksyms.o obj-$(CONFIG_SPARC64) += PeeCeeI.o obj-y += usercopy.o diff --git a/arch/sparc/lib/ashldi3.S b/arch/sparc/lib/ashldi3.S index 17912e60871..86f60de07b0 100644 --- a/arch/sparc/lib/ashldi3.S +++ b/arch/sparc/lib/ashldi3.S @@ -5,10 +5,10 @@ * Copyright (C) 1999 David S. Miller (davem@redhat.com) */ +#include <linux/linkage.h> + .text - .align 4 - .globl __ashldi3 -__ashldi3: +ENTRY(__ashldi3) cmp %o2, 0 be 9f mov 0x20, %g2 @@ -32,3 +32,4 @@ __ashldi3: 9: retl nop +ENDPROC(__ashldi3) diff --git a/arch/sparc/lib/ashrdi3.S b/arch/sparc/lib/ashrdi3.S index 85398fd6dcc..6eb8ba2dd50 100644 --- a/arch/sparc/lib/ashrdi3.S +++ b/arch/sparc/lib/ashrdi3.S @@ -5,10 +5,10 @@ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) */ +#include <linux/linkage.h> + .text - .align 4 - .globl __ashrdi3 -__ashrdi3: +ENTRY(__ashrdi3) tst %o2 be 3f or %g0, 32, %g2 @@ -34,3 +34,4 @@ __ashrdi3: 3: jmpl %o7 + 8, %g0 nop +ENDPROC(__ashrdi3) diff --git a/arch/sparc/lib/atomic_32.S b/arch/sparc/lib/atomic_32.S deleted file mode 100644 index eb6c7359cbd..00000000000 --- a/arch/sparc/lib/atomic_32.S +++ /dev/null @@ -1,44 +0,0 @@ -/* atomic.S: Move this stuff here for better ICACHE hit rates. - * - * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu) - */ - -#include <asm/ptrace.h> -#include <asm/psr.h> - - .text - .align 4 - - .globl __atomic_begin -__atomic_begin: - -#ifndef CONFIG_SMP - .globl ___xchg32_sun4c -___xchg32_sun4c: - rd %psr, %g3 - andcc %g3, PSR_PIL, %g0 - bne 1f - nop - wr %g3, PSR_PIL, %psr - nop; nop; nop -1: - andcc %g3, PSR_PIL, %g0 - ld [%g1], %g7 - bne 1f - st %g2, [%g1] - wr %g3, 0x0, %psr - nop; nop; nop -1: - mov %g7, %g2 - jmpl %o7 + 8, %g0 - mov %g4, %o7 - - .globl ___xchg32_sun4md -___xchg32_sun4md: - swap [%g1], %g2 - jmpl %o7 + 8, %g0 - mov %g4, %o7 -#endif - - .globl __atomic_end -__atomic_end: diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S index 59186e0fcf3..4d502da3de7 100644 --- a/arch/sparc/lib/atomic_64.S +++ b/arch/sparc/lib/atomic_64.S @@ -3,6 +3,7 @@ * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net) */ +#include <linux/linkage.h> #include <asm/asi.h> #include <asm/backoff.h> @@ -13,9 +14,7 @@ * memory barriers, and a second which returns * a value and does the barriers. */ - .globl atomic_add - .type atomic_add,#function -atomic_add: /* %o0 = increment, %o1 = atomic_ptr */ +ENTRY(atomic_add) /* %o0 = increment, %o1 = atomic_ptr */ BACKOFF_SETUP(%o2) 1: lduw [%o1], %g1 add %g1, %o0, %g7 @@ -26,11 +25,9 @@ atomic_add: /* %o0 = increment, %o1 = atomic_ptr */ retl nop 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_add, .-atomic_add +ENDPROC(atomic_add) - .globl atomic_sub - .type atomic_sub,#function -atomic_sub: /* %o0 = decrement, %o1 = atomic_ptr */ +ENTRY(atomic_sub) /* %o0 = decrement, %o1 = atomic_ptr */ BACKOFF_SETUP(%o2) 1: lduw [%o1], %g1 sub %g1, %o0, %g7 @@ -41,11 +38,9 @@ atomic_sub: /* %o0 = decrement, %o1 = atomic_ptr */ retl nop 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_sub, .-atomic_sub +ENDPROC(atomic_sub) - .globl atomic_add_ret - .type atomic_add_ret,#function -atomic_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ +ENTRY(atomic_add_ret) /* %o0 = increment, %o1 = atomic_ptr */ BACKOFF_SETUP(%o2) 1: lduw [%o1], %g1 add %g1, %o0, %g7 @@ -56,11 +51,9 @@ atomic_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ retl sra %g1, 0, %o0 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_add_ret, .-atomic_add_ret +ENDPROC(atomic_add_ret) - .globl atomic_sub_ret - .type atomic_sub_ret,#function -atomic_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ +ENTRY(atomic_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */ BACKOFF_SETUP(%o2) 1: lduw [%o1], %g1 sub %g1, %o0, %g7 @@ -71,11 +64,9 @@ atomic_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ retl sra %g1, 0, %o0 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_sub_ret, .-atomic_sub_ret +ENDPROC(atomic_sub_ret) - .globl atomic64_add - .type atomic64_add,#function -atomic64_add: /* %o0 = increment, %o1 = atomic_ptr */ +ENTRY(atomic64_add) /* %o0 = increment, %o1 = atomic_ptr */ BACKOFF_SETUP(%o2) 1: ldx [%o1], %g1 add %g1, %o0, %g7 @@ -86,11 +77,9 @@ atomic64_add: /* %o0 = increment, %o1 = atomic_ptr */ retl nop 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_add, .-atomic64_add +ENDPROC(atomic64_add) - .globl atomic64_sub - .type atomic64_sub,#function -atomic64_sub: /* %o0 = decrement, %o1 = atomic_ptr */ +ENTRY(atomic64_sub) /* %o0 = decrement, %o1 = atomic_ptr */ BACKOFF_SETUP(%o2) 1: ldx [%o1], %g1 sub %g1, %o0, %g7 @@ -101,11 +90,9 @@ atomic64_sub: /* %o0 = decrement, %o1 = atomic_ptr */ retl nop 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_sub, .-atomic64_sub +ENDPROC(atomic64_sub) - .globl atomic64_add_ret - .type atomic64_add_ret,#function -atomic64_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ +ENTRY(atomic64_add_ret) /* %o0 = increment, %o1 = atomic_ptr */ BACKOFF_SETUP(%o2) 1: ldx [%o1], %g1 add %g1, %o0, %g7 @@ -116,11 +103,9 @@ atomic64_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ retl add %g1, %o0, %o0 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_add_ret, .-atomic64_add_ret +ENDPROC(atomic64_add_ret) - .globl atomic64_sub_ret - .type atomic64_sub_ret,#function -atomic64_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ +ENTRY(atomic64_sub_ret) /* %o0 = decrement, %o1 = atomic_ptr */ BACKOFF_SETUP(%o2) 1: ldx [%o1], %g1 sub %g1, %o0, %g7 @@ -131,4 +116,4 @@ atomic64_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ retl sub %g1, %o0, %o0 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_sub_ret, .-atomic64_sub_ret +ENDPROC(atomic64_sub_ret) diff --git a/arch/sparc/lib/bitops.S b/arch/sparc/lib/bitops.S index 3dc61d5537c..36f72cc0e67 100644 --- a/arch/sparc/lib/bitops.S +++ b/arch/sparc/lib/bitops.S @@ -3,14 +3,13 @@ * Copyright (C) 2000, 2007 David S. Miller (davem@davemloft.net) */ +#include <linux/linkage.h> #include <asm/asi.h> #include <asm/backoff.h> .text - .globl test_and_set_bit - .type test_and_set_bit,#function -test_and_set_bit: /* %o0=nr, %o1=addr */ +ENTRY(test_and_set_bit) /* %o0=nr, %o1=addr */ BACKOFF_SETUP(%o3) srlx %o0, 6, %g1 mov 1, %o2 @@ -29,11 +28,9 @@ test_and_set_bit: /* %o0=nr, %o1=addr */ retl nop 2: BACKOFF_SPIN(%o3, %o4, 1b) - .size test_and_set_bit, .-test_and_set_bit +ENDPROC(test_and_set_bit) - .globl test_and_clear_bit - .type test_and_clear_bit,#function -test_and_clear_bit: /* %o0=nr, %o1=addr */ +ENTRY(test_and_clear_bit) /* %o0=nr, %o1=addr */ BACKOFF_SETUP(%o3) srlx %o0, 6, %g1 mov 1, %o2 @@ -52,11 +49,9 @@ test_and_clear_bit: /* %o0=nr, %o1=addr */ retl nop 2: BACKOFF_SPIN(%o3, %o4, 1b) - .size test_and_clear_bit, .-test_and_clear_bit +ENDPROC(test_and_clear_bit) - .globl test_and_change_bit - .type test_and_change_bit,#function -test_and_change_bit: /* %o0=nr, %o1=addr */ +ENTRY(test_and_change_bit) /* %o0=nr, %o1=addr */ BACKOFF_SETUP(%o3) srlx %o0, 6, %g1 mov 1, %o2 @@ -75,11 +70,9 @@ test_and_change_bit: /* %o0=nr, %o1=addr */ retl nop 2: BACKOFF_SPIN(%o3, %o4, 1b) - .size test_and_change_bit, .-test_and_change_bit +ENDPROC(test_and_change_bit) - .globl set_bit - .type set_bit,#function -set_bit: /* %o0=nr, %o1=addr */ +ENTRY(set_bit) /* %o0=nr, %o1=addr */ BACKOFF_SETUP(%o3) srlx %o0, 6, %g1 mov 1, %o2 @@ -96,11 +89,9 @@ set_bit: /* %o0=nr, %o1=addr */ retl nop 2: BACKOFF_SPIN(%o3, %o4, 1b) - .size set_bit, .-set_bit +ENDPROC(set_bit) - .globl clear_bit - .type clear_bit,#function -clear_bit: /* %o0=nr, %o1=addr */ +ENTRY(clear_bit) /* %o0=nr, %o1=addr */ BACKOFF_SETUP(%o3) srlx %o0, 6, %g1 mov 1, %o2 @@ -117,11 +108,9 @@ clear_bit: /* %o0=nr, %o1=addr */ retl nop 2: BACKOFF_SPIN(%o3, %o4, 1b) - .size clear_bit, .-clear_bit +ENDPROC(clear_bit) - .globl change_bit - .type change_bit,#function -change_bit: /* %o0=nr, %o1=addr */ +ENTRY(change_bit) /* %o0=nr, %o1=addr */ BACKOFF_SETUP(%o3) srlx %o0, 6, %g1 mov 1, %o2 @@ -138,4 +127,4 @@ change_bit: /* %o0=nr, %o1=addr */ retl nop 2: BACKOFF_SPIN(%o3, %o4, 1b) - .size change_bit, .-change_bit +ENDPROC(change_bit) diff --git a/arch/sparc/lib/blockops.S b/arch/sparc/lib/blockops.S index 804be87f9a4..3c771011ff4 100644 --- a/arch/sparc/lib/blockops.S +++ b/arch/sparc/lib/blockops.S @@ -4,6 +4,7 @@ * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu) */ +#include <linux/linkage.h> #include <asm/page.h> /* Zero out 64 bytes of memory at (buf + offset). @@ -44,10 +45,7 @@ */ .text - .align 4 - .globl bzero_1page, __copy_1page - -bzero_1page: +ENTRY(bzero_1page) /* NOTE: If you change the number of insns of this routine, please check * arch/sparc/mm/hypersparc.S */ /* %o0 = buf */ @@ -65,8 +63,9 @@ bzero_1page: retl nop +ENDPROC(bzero_1page) -__copy_1page: +ENTRY(__copy_1page) /* NOTE: If you change the number of insns of this routine, please check * arch/sparc/mm/hypersparc.S */ /* %o0 = dst, %o1 = src */ @@ -87,3 +86,4 @@ __copy_1page: retl nop +ENDPROC(__copy_1page) diff --git a/arch/sparc/lib/bzero.S b/arch/sparc/lib/bzero.S index 615f401edf6..8c058114b64 100644 --- a/arch/sparc/lib/bzero.S +++ b/arch/sparc/lib/bzero.S @@ -4,11 +4,11 @@ * Copyright (C) 2005 David S. Miller <davem@davemloft.net> */ +#include <linux/linkage.h> + .text - .globl memset - .type memset, #function -memset: /* %o0=buf, %o1=pat, %o2=len */ +ENTRY(memset) /* %o0=buf, %o1=pat, %o2=len */ and %o1, 0xff, %o3 mov %o2, %o1 sllx %o3, 8, %g1 @@ -19,9 +19,7 @@ memset: /* %o0=buf, %o1=pat, %o2=len */ ba,pt %xcc, 1f or %g1, %o2, %o2 - .globl __bzero - .type __bzero, #function -__bzero: /* %o0=buf, %o1=len */ +ENTRY(__bzero) /* %o0=buf, %o1=len */ clr %o2 1: mov %o0, %o3 brz,pn %o1, __bzero_done @@ -78,8 +76,8 @@ __bzero_tiny: __bzero_done: retl mov %o3, %o0 - .size __bzero, .-__bzero - .size memset, .-memset +ENDPROC(__bzero) +ENDPROC(memset) #define EX_ST(x,y) \ 98: x,y; \ @@ -89,9 +87,7 @@ __bzero_done: .text; \ .align 4; - .globl __clear_user - .type __clear_user, #function -__clear_user: /* %o0=buf, %o1=len */ +ENTRY(__clear_user) /* %o0=buf, %o1=len */ brz,pn %o1, __clear_user_done cmp %o1, 16 bl,pn %icc, __clear_user_tiny @@ -146,4 +142,4 @@ __clear_user_tiny: __clear_user_done: retl clr %o0 - .size __clear_user, .-__clear_user +ENDPROC(__clear_user) diff --git a/arch/sparc/lib/divdi3.S b/arch/sparc/lib/divdi3.S index d74bc0925f2..9614b48b6ef 100644 --- a/arch/sparc/lib/divdi3.S +++ b/arch/sparc/lib/divdi3.S @@ -19,7 +19,6 @@ Boston, MA 02111-1307, USA. */ .text .align 4 - .global .udiv .globl __divdi3 __divdi3: save %sp,-104,%sp @@ -83,8 +82,9 @@ __divdi3: bne .LL85 mov %i0,%o2 mov 1,%o0 - call .udiv,0 mov 0,%o1 + wr %g0, 0, %y + udiv %o0, %o1, %o0 mov %o0,%o4 mov %i0,%o2 .LL85: diff --git a/arch/sparc/lib/ipcsum.S b/arch/sparc/lib/ipcsum.S index 58ca5b9a877..4742d59029e 100644 --- a/arch/sparc/lib/ipcsum.S +++ b/arch/sparc/lib/ipcsum.S @@ -1,8 +1,7 @@ +#include <linux/linkage.h> + .text - .align 32 - .globl ip_fast_csum - .type ip_fast_csum,#function -ip_fast_csum: /* %o0 = iph, %o1 = ihl */ +ENTRY(ip_fast_csum) /* %o0 = iph, %o1 = ihl */ sub %o1, 4, %g7 lduw [%o0 + 0x00], %o2 lduw [%o0 + 0x04], %g2 @@ -31,4 +30,4 @@ ip_fast_csum: /* %o0 = iph, %o1 = ihl */ set 0xffff, %o1 retl and %o2, %o1, %o0 - .size ip_fast_csum, .-ip_fast_csum +ENDPROC(ip_fast_csum) diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c index f73c2240fe6..2dc30875c8b 100644 --- a/arch/sparc/lib/ksyms.c +++ b/arch/sparc/lib/ksyms.c @@ -56,23 +56,11 @@ extern int __divdi3(int, int); extern void (*__copy_1page)(void *, const void *); extern void (*bzero_1page)(void *); -extern int __strncmp(const char *, const char *, __kernel_size_t); - extern void ___rw_read_enter(void); extern void ___rw_read_try(void); extern void ___rw_read_exit(void); extern void ___rw_write_enter(void); -/* Alias functions whose names begin with "." and export the aliases. - * The module references will be fixed up by module_frob_arch_sections. - */ -extern int _Div(int, int); -extern int _Mul(int, int); -extern int _Rem(int, int); -extern unsigned _Udiv(unsigned, unsigned); -extern unsigned _Umul(unsigned, unsigned); -extern unsigned _Urem(unsigned, unsigned); - /* Networking helper routines. */ EXPORT_SYMBOL(__csum_partial_copy_sparc_generic); @@ -81,9 +69,6 @@ EXPORT_SYMBOL(__copy_1page); EXPORT_SYMBOL(__memmove); EXPORT_SYMBOL(bzero_1page); -/* string functions */ -EXPORT_SYMBOL(__strncmp); - /* Moving data to/from/in userspace. */ EXPORT_SYMBOL(__copy_user); @@ -100,13 +85,6 @@ EXPORT_SYMBOL(__ashldi3); EXPORT_SYMBOL(__lshrdi3); EXPORT_SYMBOL(__muldi3); EXPORT_SYMBOL(__divdi3); - -EXPORT_SYMBOL(_Rem); -EXPORT_SYMBOL(_Urem); -EXPORT_SYMBOL(_Mul); -EXPORT_SYMBOL(_Umul); -EXPORT_SYMBOL(_Div); -EXPORT_SYMBOL(_Udiv); #endif /* diff --git a/arch/sparc/lib/lshrdi3.S b/arch/sparc/lib/lshrdi3.S index 47a1354c160..60ebc7cdbee 100644 --- a/arch/sparc/lib/lshrdi3.S +++ b/arch/sparc/lib/lshrdi3.S @@ -1,6 +1,6 @@ +#include <linux/linkage.h> - .globl __lshrdi3 -__lshrdi3: +ENTRY(__lshrdi3) cmp %o2, 0 be 3f mov 0x20, %g2 @@ -24,3 +24,4 @@ __lshrdi3: 3: retl nop +ENDPROC(__lshrdi3) diff --git a/arch/sparc/lib/memmove.S b/arch/sparc/lib/memmove.S index 97395802c23..b7f6334e159 100644 --- a/arch/sparc/lib/memmove.S +++ b/arch/sparc/lib/memmove.S @@ -4,11 +4,10 @@ * Copyright (C) 1996, 1997, 1998, 1999 Jakub Jelinek (jj@ultra.linux.cz) */ +#include <linux/linkage.h> + .text - .align 32 - .globl memmove - .type memmove,#function -memmove: /* o0=dst o1=src o2=len */ +ENTRY(memmove) /* o0=dst o1=src o2=len */ mov %o0, %g1 cmp %o0, %o1 bleu,pt %xcc, memcpy @@ -28,4 +27,4 @@ memmove: /* o0=dst o1=src o2=len */ retl mov %g1, %o0 - .size memmove, .-memmove +ENDPROC(memmove) diff --git a/arch/sparc/lib/mul.S b/arch/sparc/lib/mul.S deleted file mode 100644 index c45470d0b0c..00000000000 --- a/arch/sparc/lib/mul.S +++ /dev/null @@ -1,137 +0,0 @@ -/* - * mul.S: This routine was taken from glibc-1.09 and is covered - * by the GNU Library General Public License Version 2. - */ - -/* - * Signed multiply, from Appendix E of the Sparc Version 8 - * Architecture Manual. - */ - -/* - * Returns %o0 * %o1 in %o1%o0 (i.e., %o1 holds the upper 32 bits of - * the 64-bit product). - * - * This code optimizes short (less than 13-bit) multiplies. - */ - - .globl .mul - .globl _Mul -.mul: -_Mul: /* needed for export */ - mov %o0, %y ! multiplier -> Y - andncc %o0, 0xfff, %g0 ! test bits 12..31 - be Lmul_shortway ! if zero, can do it the short way - andcc %g0, %g0, %o4 ! zero the partial product and clear N and V - - /* - * Long multiply. 32 steps, followed by a final shift step. - */ - mulscc %o4, %o1, %o4 ! 1 - mulscc %o4, %o1, %o4 ! 2 - mulscc %o4, %o1, %o4 ! 3 - mulscc %o4, %o1, %o4 ! 4 - mulscc %o4, %o1, %o4 ! 5 - mulscc %o4, %o1, %o4 ! 6 - mulscc %o4, %o1, %o4 ! 7 - mulscc %o4, %o1, %o4 ! 8 - mulscc %o4, %o1, %o4 ! 9 - mulscc %o4, %o1, %o4 ! 10 - mulscc %o4, %o1, %o4 ! 11 - mulscc %o4, %o1, %o4 ! 12 - mulscc %o4, %o1, %o4 ! 13 - mulscc %o4, %o1, %o4 ! 14 - mulscc %o4, %o1, %o4 ! 15 - mulscc %o4, %o1, %o4 ! 16 - mulscc %o4, %o1, %o4 ! 17 - mulscc %o4, %o1, %o4 ! 18 - mulscc %o4, %o1, %o4 ! 19 - mulscc %o4, %o1, %o4 ! 20 - mulscc %o4, %o1, %o4 ! 21 - mulscc %o4, %o1, %o4 ! 22 - mulscc %o4, %o1, %o4 ! 23 - mulscc %o4, %o1, %o4 ! 24 - mulscc %o4, %o1, %o4 ! 25 - mulscc %o4, %o1, %o4 ! 26 - mulscc %o4, %o1, %o4 ! 27 - mulscc %o4, %o1, %o4 ! 28 - mulscc %o4, %o1, %o4 ! 29 - mulscc %o4, %o1, %o4 ! 30 - mulscc %o4, %o1, %o4 ! 31 - mulscc %o4, %o1, %o4 ! 32 - mulscc %o4, %g0, %o4 ! final shift - - ! If %o0 was negative, the result is - ! (%o0 * %o1) + (%o1 << 32)) - ! We fix that here. - -#if 0 - tst %o0 - bge 1f - rd %y, %o0 - - ! %o0 was indeed negative; fix upper 32 bits of result by subtracting - ! %o1 (i.e., return %o4 - %o1 in %o1). - retl - sub %o4, %o1, %o1 - -1: - retl - mov %o4, %o1 -#else - /* Faster code adapted from tege@sics.se's code for umul.S. */ - sra %o0, 31, %o2 ! make mask from sign bit - and %o1, %o2, %o2 ! %o2 = 0 or %o1, depending on sign of %o0 - rd %y, %o0 ! get lower half of product - retl - sub %o4, %o2, %o1 ! subtract compensation - ! and put upper half in place -#endif - -Lmul_shortway: - /* - * Short multiply. 12 steps, followed by a final shift step. - * The resulting bits are off by 12 and (32-12) = 20 bit positions, - * but there is no problem with %o0 being negative (unlike above). - */ - mulscc %o4, %o1, %o4 ! 1 - mulscc %o4, %o1, %o4 ! 2 - mulscc %o4, %o1, %o4 ! 3 - mulscc %o4, %o1, %o4 ! 4 - mulscc %o4, %o1, %o4 ! 5 - mulscc %o4, %o1, %o4 ! 6 - mulscc %o4, %o1, %o4 ! 7 - mulscc %o4, %o1, %o4 ! 8 - mulscc %o4, %o1, %o4 ! 9 - mulscc %o4, %o1, %o4 ! 10 - mulscc %o4, %o1, %o4 ! 11 - mulscc %o4, %o1, %o4 ! 12 - mulscc %o4, %g0, %o4 ! final shift - - /* - * %o4 has 20 of the bits that should be in the low part of the - * result; %y has the bottom 12 (as %y's top 12). That is: - * - * %o4 %y - * +----------------+----------------+ - * | -12- | -20- | -12- | -20- | - * +------(---------+------)---------+ - * --hi-- ----low-part---- - * - * The upper 12 bits of %o4 should be sign-extended to form the - * high part of the product (i.e., highpart = %o4 >> 20). - */ - - rd %y, %o5 - sll %o4, 12, %o0 ! shift middle bits left 12 - srl %o5, 20, %o5 ! shift low bits right 20, zero fill at left - or %o5, %o0, %o0 ! construct low part of result - retl - sra %o4, 20, %o1 ! ... and extract high part of result - - .globl .mul_patch -.mul_patch: - smul %o0, %o1, %o0 - retl - rd %y, %o1 - nop diff --git a/arch/sparc/lib/muldi3.S b/arch/sparc/lib/muldi3.S index 7f17872d060..9794939d1c1 100644 --- a/arch/sparc/lib/muldi3.S +++ b/arch/sparc/lib/muldi3.S @@ -63,12 +63,12 @@ __muldi3: rd %y, %o1 mov %o1, %l3 mov %i1, %o0 - call .umul mov %i2, %o1 + umul %o0, %o1, %o0 mov %o0, %l0 mov %i0, %o0 - call .umul mov %i3, %o1 + umul %o0, %o1, %o0 add %l0, %o0, %l0 mov %l2, %i0 add %l2, %l0, %i0 diff --git a/arch/sparc/lib/rem.S b/arch/sparc/lib/rem.S deleted file mode 100644 index 42fb8625281..00000000000 --- a/arch/sparc/lib/rem.S +++ /dev/null @@ -1,384 +0,0 @@ -/* - * rem.S: This routine was taken from glibc-1.09 and is covered - * by the GNU Library General Public License Version 2. - */ - - -/* This file is generated from divrem.m4; DO NOT EDIT! */ -/* - * Division and remainder, from Appendix E of the Sparc Version 8 - * Architecture Manual, with fixes from Gordon Irlam. - */ - -/* - * Input: dividend and divisor in %o0 and %o1 respectively. - * - * m4 parameters: - * .rem name of function to generate - * rem rem=div => %o0 / %o1; rem=rem => %o0 % %o1 - * true true=true => signed; true=false => unsigned - * - * Algorithm parameters: - * N how many bits per iteration we try to get (4) - * WORDSIZE total number of bits (32) - * - * Derived constants: - * TOPBITS number of bits in the top decade of a number - * - * Important variables: - * Q the partial quotient under development (initially 0) - * R the remainder so far, initially the dividend - * ITER number of main division loop iterations required; - * equal to ceil(log2(quotient) / N). Note that this - * is the log base (2^N) of the quotient. - * V the current comparand, initially divisor*2^(ITER*N-1) - * - * Cost: - * Current estimate for non-large dividend is - * ceil(log2(quotient) / N) * (10 + 7N/2) + C - * A large dividend is one greater than 2^(31-TOPBITS) and takes a - * different path, as the upper bits of the quotient must be developed - * one bit at a time. - */ - - - .globl .rem - .globl _Rem -.rem: -_Rem: /* needed for export */ - ! compute sign of result; if neither is negative, no problem - orcc %o1, %o0, %g0 ! either negative? - bge 2f ! no, go do the divide - mov %o0, %g2 ! compute sign in any case - - tst %o1 - bge 1f - tst %o0 - ! %o1 is definitely negative; %o0 might also be negative - bge 2f ! if %o0 not negative... - sub %g0, %o1, %o1 ! in any case, make %o1 nonneg -1: ! %o0 is negative, %o1 is nonnegative - sub %g0, %o0, %o0 ! make %o0 nonnegative -2: - - ! Ready to divide. Compute size of quotient; scale comparand. - orcc %o1, %g0, %o5 - bne 1f - mov %o0, %o3 - - ! Divide by zero trap. If it returns, return 0 (about as - ! wrong as possible, but that is what SunOS does...). - ta ST_DIV0 - retl - clr %o0 - -1: - cmp %o3, %o5 ! if %o1 exceeds %o0, done - blu Lgot_result ! (and algorithm fails otherwise) - clr %o2 - - sethi %hi(1 << (32 - 4 - 1)), %g1 - - cmp %o3, %g1 - blu Lnot_really_big - clr %o4 - - ! Here the dividend is >= 2**(31-N) or so. We must be careful here, - ! as our usual N-at-a-shot divide step will cause overflow and havoc. - ! The number of bits in the result here is N*ITER+SC, where SC <= N. - ! Compute ITER in an unorthodox manner: know we need to shift V into - ! the top decade: so do not even bother to compare to R. - 1: - cmp %o5, %g1 - bgeu 3f - mov 1, %g7 - - sll %o5, 4, %o5 - - b 1b - add %o4, 1, %o4 - - ! Now compute %g7. - 2: - addcc %o5, %o5, %o5 - - bcc Lnot_too_big - add %g7, 1, %g7 - - ! We get here if the %o1 overflowed while shifting. - ! This means that %o3 has the high-order bit set. - ! Restore %o5 and subtract from %o3. - sll %g1, 4, %g1 ! high order bit - srl %o5, 1, %o5 ! rest of %o5 - add %o5, %g1, %o5 - - b Ldo_single_div - sub %g7, 1, %g7 - - Lnot_too_big: - 3: - cmp %o5, %o3 - blu 2b - nop - - be Ldo_single_div - nop - /* NB: these are commented out in the V8-Sparc manual as well */ - /* (I do not understand this) */ - ! %o5 > %o3: went too far: back up 1 step - ! srl %o5, 1, %o5 - ! dec %g7 - ! do single-bit divide steps - ! - ! We have to be careful here. We know that %o3 >= %o5, so we can do the - ! first divide step without thinking. BUT, the others are conditional, - ! and are only done if %o3 >= 0. Because both %o3 and %o5 may have the high- - ! order bit set in the first step, just falling into the regular - ! division loop will mess up the first time around. - ! So we unroll slightly... - Ldo_single_div: - subcc %g7, 1, %g7 - bl Lend_regular_divide - nop - - sub %o3, %o5, %o3 - mov 1, %o2 - - b Lend_single_divloop - nop - Lsingle_divloop: - sll %o2, 1, %o2 - - bl 1f - srl %o5, 1, %o5 - ! %o3 >= 0 - sub %o3, %o5, %o3 - - b 2f - add %o2, 1, %o2 - 1: ! %o3 < 0 - add %o3, %o5, %o3 - sub %o2, 1, %o2 - 2: - Lend_single_divloop: - subcc %g7, 1, %g7 - bge Lsingle_divloop - tst %o3 - - b,a Lend_regular_divide - -Lnot_really_big: -1: - sll %o5, 4, %o5 - cmp %o5, %o3 - bleu 1b - addcc %o4, 1, %o4 - be Lgot_result - sub %o4, 1, %o4 - - tst %o3 ! set up for initial iteration -Ldivloop: - sll %o2, 4, %o2 - ! depth 1, accumulated bits 0 - bl L.1.16 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 2, accumulated bits 1 - bl L.2.17 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 3, accumulated bits 3 - bl L.3.19 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits 7 - bl L.4.23 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - - b 9f - add %o2, (7*2+1), %o2 - -L.4.23: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (7*2-1), %o2 - -L.3.19: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits 5 - bl L.4.21 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (5*2+1), %o2 - -L.4.21: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (5*2-1), %o2 - -L.2.17: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 3, accumulated bits 1 - bl L.3.17 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits 3 - bl L.4.19 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (3*2+1), %o2 - -L.4.19: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (3*2-1), %o2 - -L.3.17: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits 1 - bl L.4.17 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (1*2+1), %o2 - -L.4.17: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (1*2-1), %o2 - -L.1.16: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 2, accumulated bits -1 - bl L.2.15 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 3, accumulated bits -1 - bl L.3.15 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits -1 - bl L.4.15 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-1*2+1), %o2 - -L.4.15: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-1*2-1), %o2 - -L.3.15: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits -3 - bl L.4.13 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-3*2+1), %o2 - -L.4.13: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-3*2-1), %o2 - -L.2.15: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 3, accumulated bits -3 - bl L.3.13 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits -5 - bl L.4.11 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-5*2+1), %o2 - -L.4.11: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-5*2-1), %o2 - - -L.3.13: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits -7 - bl L.4.9 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-7*2+1), %o2 - -L.4.9: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-7*2-1), %o2 - - 9: -Lend_regular_divide: - subcc %o4, 1, %o4 - bge Ldivloop - tst %o3 - - bl,a Lgot_result - ! non-restoring fixup here (one instruction only!) - add %o3, %o1, %o3 - -Lgot_result: - ! check to see if answer should be < 0 - tst %g2 - bl,a 1f - sub %g0, %o3, %o3 -1: - retl - mov %o3, %o0 - - .globl .rem_patch -.rem_patch: - sra %o0, 0x1f, %o4 - wr %o4, 0x0, %y - nop - nop - nop - sdivcc %o0, %o1, %o2 - bvs,a 1f - xnor %o2, %g0, %o2 -1: smul %o2, %o1, %o2 - retl - sub %o0, %o2, %o0 - nop diff --git a/arch/sparc/lib/sdiv.S b/arch/sparc/lib/sdiv.S deleted file mode 100644 index f0a0d4e4db7..00000000000 --- a/arch/sparc/lib/sdiv.S +++ /dev/null @@ -1,381 +0,0 @@ -/* - * sdiv.S: This routine was taken from glibc-1.09 and is covered - * by the GNU Library General Public License Version 2. - */ - - -/* This file is generated from divrem.m4; DO NOT EDIT! */ -/* - * Division and remainder, from Appendix E of the Sparc Version 8 - * Architecture Manual, with fixes from Gordon Irlam. - */ - -/* - * Input: dividend and divisor in %o0 and %o1 respectively. - * - * m4 parameters: - * .div name of function to generate - * div div=div => %o0 / %o1; div=rem => %o0 % %o1 - * true true=true => signed; true=false => unsigned - * - * Algorithm parameters: - * N how many bits per iteration we try to get (4) - * WORDSIZE total number of bits (32) - * - * Derived constants: - * TOPBITS number of bits in the top decade of a number - * - * Important variables: - * Q the partial quotient under development (initially 0) - * R the remainder so far, initially the dividend - * ITER number of main division loop iterations required; - * equal to ceil(log2(quotient) / N). Note that this - * is the log base (2^N) of the quotient. - * V the current comparand, initially divisor*2^(ITER*N-1) - * - * Cost: - * Current estimate for non-large dividend is - * ceil(log2(quotient) / N) * (10 + 7N/2) + C - * A large dividend is one greater than 2^(31-TOPBITS) and takes a - * different path, as the upper bits of the quotient must be developed - * one bit at a time. - */ - - - .globl .div - .globl _Div -.div: -_Div: /* needed for export */ - ! compute sign of result; if neither is negative, no problem - orcc %o1, %o0, %g0 ! either negative? - bge 2f ! no, go do the divide - xor %o1, %o0, %g2 ! compute sign in any case - - tst %o1 - bge 1f - tst %o0 - ! %o1 is definitely negative; %o0 might also be negative - bge 2f ! if %o0 not negative... - sub %g0, %o1, %o1 ! in any case, make %o1 nonneg -1: ! %o0 is negative, %o1 is nonnegative - sub %g0, %o0, %o0 ! make %o0 nonnegative -2: - - ! Ready to divide. Compute size of quotient; scale comparand. - orcc %o1, %g0, %o5 - bne 1f - mov %o0, %o3 - - ! Divide by zero trap. If it returns, return 0 (about as - ! wrong as possible, but that is what SunOS does...). - ta ST_DIV0 - retl - clr %o0 - -1: - cmp %o3, %o5 ! if %o1 exceeds %o0, done - blu Lgot_result ! (and algorithm fails otherwise) - clr %o2 - - sethi %hi(1 << (32 - 4 - 1)), %g1 - - cmp %o3, %g1 - blu Lnot_really_big - clr %o4 - - ! Here the dividend is >= 2**(31-N) or so. We must be careful here, - ! as our usual N-at-a-shot divide step will cause overflow and havoc. - ! The number of bits in the result here is N*ITER+SC, where SC <= N. - ! Compute ITER in an unorthodox manner: know we need to shift V into - ! the top decade: so do not even bother to compare to R. - 1: - cmp %o5, %g1 - bgeu 3f - mov 1, %g7 - - sll %o5, 4, %o5 - - b 1b - add %o4, 1, %o4 - - ! Now compute %g7. - 2: - addcc %o5, %o5, %o5 - bcc Lnot_too_big - add %g7, 1, %g7 - - ! We get here if the %o1 overflowed while shifting. - ! This means that %o3 has the high-order bit set. - ! Restore %o5 and subtract from %o3. - sll %g1, 4, %g1 ! high order bit - srl %o5, 1, %o5 ! rest of %o5 - add %o5, %g1, %o5 - - b Ldo_single_div - sub %g7, 1, %g7 - - Lnot_too_big: - 3: - cmp %o5, %o3 - blu 2b - nop - - be Ldo_single_div - nop - /* NB: these are commented out in the V8-Sparc manual as well */ - /* (I do not understand this) */ - ! %o5 > %o3: went too far: back up 1 step - ! srl %o5, 1, %o5 - ! dec %g7 - ! do single-bit divide steps - ! - ! We have to be careful here. We know that %o3 >= %o5, so we can do the - ! first divide step without thinking. BUT, the others are conditional, - ! and are only done if %o3 >= 0. Because both %o3 and %o5 may have the high- - ! order bit set in the first step, just falling into the regular - ! division loop will mess up the first time around. - ! So we unroll slightly... - Ldo_single_div: - subcc %g7, 1, %g7 - bl Lend_regular_divide - nop - - sub %o3, %o5, %o3 - mov 1, %o2 - - b Lend_single_divloop - nop - Lsingle_divloop: - sll %o2, 1, %o2 - - bl 1f - srl %o5, 1, %o5 - ! %o3 >= 0 - sub %o3, %o5, %o3 - - b 2f - add %o2, 1, %o2 - 1: ! %o3 < 0 - add %o3, %o5, %o3 - sub %o2, 1, %o2 - 2: - Lend_single_divloop: - subcc %g7, 1, %g7 - bge Lsingle_divloop - tst %o3 - - b,a Lend_regular_divide - -Lnot_really_big: -1: - sll %o5, 4, %o5 - cmp %o5, %o3 - bleu 1b - addcc %o4, 1, %o4 - - be Lgot_result - sub %o4, 1, %o4 - - tst %o3 ! set up for initial iteration -Ldivloop: - sll %o2, 4, %o2 - ! depth 1, accumulated bits 0 - bl L.1.16 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 2, accumulated bits 1 - bl L.2.17 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 3, accumulated bits 3 - bl L.3.19 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits 7 - bl L.4.23 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (7*2+1), %o2 - -L.4.23: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (7*2-1), %o2 - -L.3.19: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits 5 - bl L.4.21 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (5*2+1), %o2 - -L.4.21: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (5*2-1), %o2 - -L.2.17: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 3, accumulated bits 1 - bl L.3.17 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits 3 - bl L.4.19 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (3*2+1), %o2 - -L.4.19: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (3*2-1), %o2 - - -L.3.17: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits 1 - bl L.4.17 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (1*2+1), %o2 - -L.4.17: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (1*2-1), %o2 - -L.1.16: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 2, accumulated bits -1 - bl L.2.15 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 3, accumulated bits -1 - bl L.3.15 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits -1 - bl L.4.15 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-1*2+1), %o2 - -L.4.15: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-1*2-1), %o2 - -L.3.15: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits -3 - bl L.4.13 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-3*2+1), %o2 - -L.4.13: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-3*2-1), %o2 - -L.2.15: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 3, accumulated bits -3 - bl L.3.13 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits -5 - bl L.4.11 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-5*2+1), %o2 - -L.4.11: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-5*2-1), %o2 - -L.3.13: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits -7 - bl L.4.9 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-7*2+1), %o2 - -L.4.9: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-7*2-1), %o2 - - 9: -Lend_regular_divide: - subcc %o4, 1, %o4 - bge Ldivloop - tst %o3 - - bl,a Lgot_result - ! non-restoring fixup here (one instruction only!) - sub %o2, 1, %o2 - -Lgot_result: - ! check to see if answer should be < 0 - tst %g2 - bl,a 1f - sub %g0, %o2, %o2 -1: - retl - mov %o2, %o0 - - .globl .div_patch -.div_patch: - sra %o0, 0x1f, %o2 - wr %o2, 0x0, %y - nop - nop - nop - sdivcc %o0, %o1, %o0 - bvs,a 1f - xnor %o0, %g0, %o0 -1: retl - nop diff --git a/arch/sparc/lib/strlen_user_64.S b/arch/sparc/lib/strlen_user_64.S index 114ed111e25..c3df71fa492 100644 --- a/arch/sparc/lib/strlen_user_64.S +++ b/arch/sparc/lib/strlen_user_64.S @@ -8,16 +8,16 @@ * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) */ +#include <linux/linkage.h> #include <asm/asi.h> #define LO_MAGIC 0x01010101 #define HI_MAGIC 0x80808080 .align 4 - .global __strlen_user, __strnlen_user -__strlen_user: +ENTRY(__strlen_user) sethi %hi(32768), %o1 -__strnlen_user: +ENTRY(__strnlen_user) mov %o1, %g1 mov %o0, %o1 andcc %o0, 3, %g0 @@ -78,6 +78,8 @@ __strnlen_user: mov 2, %o0 23: retl mov 3, %o0 +ENDPROC(__strlen_user) +ENDPROC(__strnlen_user) .section .fixup,#alloc,#execinstr .align 4 diff --git a/arch/sparc/lib/strncmp_32.S b/arch/sparc/lib/strncmp_32.S index 494ec664537..c0d1b568c1c 100644 --- a/arch/sparc/lib/strncmp_32.S +++ b/arch/sparc/lib/strncmp_32.S @@ -3,11 +3,10 @@ * generic strncmp routine. */ +#include <linux/linkage.h> + .text - .align 4 - .global __strncmp, strncmp -__strncmp: -strncmp: +ENTRY(strncmp) mov %o0, %g3 mov 0, %o3 @@ -116,3 +115,4 @@ strncmp: and %g2, 0xff, %o0 retl sub %o3, %o0, %o0 +ENDPROC(strncmp) diff --git a/arch/sparc/lib/strncmp_64.S b/arch/sparc/lib/strncmp_64.S index 980e8375155..0656627166f 100644 --- a/arch/sparc/lib/strncmp_64.S +++ b/arch/sparc/lib/strncmp_64.S @@ -4,13 +4,11 @@ * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) */ +#include <linux/linkage.h> #include <asm/asi.h> .text - .align 32 - .globl strncmp - .type strncmp,#function -strncmp: +ENTRY(strncmp) brlez,pn %o2, 3f lduba [%o0] (ASI_PNF), %o3 1: @@ -29,4 +27,4 @@ strncmp: 3: retl clr %o0 - .size strncmp, .-strncmp +ENDPROC(strncmp) diff --git a/arch/sparc/lib/strncpy_from_user_32.S b/arch/sparc/lib/strncpy_from_user_32.S index d77198976a6..db0ed2964bd 100644 --- a/arch/sparc/lib/strncpy_from_user_32.S +++ b/arch/sparc/lib/strncpy_from_user_32.S @@ -3,11 +3,11 @@ * Copyright(C) 1996 David S. Miller */ +#include <linux/linkage.h> #include <asm/ptrace.h> #include <asm/errno.h> .text - .align 4 /* Must return: * @@ -16,8 +16,7 @@ * bytes copied if we hit a null byte */ - .globl __strncpy_from_user -__strncpy_from_user: +ENTRY(__strncpy_from_user) /* %o0=dest, %o1=src, %o2=count */ mov %o2, %o3 1: @@ -35,6 +34,7 @@ __strncpy_from_user: add %o2, 1, %o0 retl sub %o3, %o0, %o0 +ENDPROC(__strncpy_from_user) .section .fixup,#alloc,#execinstr .align 4 diff --git a/arch/sparc/lib/strncpy_from_user_64.S b/arch/sparc/lib/strncpy_from_user_64.S index 511c8f136f9..d1246b71307 100644 --- a/arch/sparc/lib/strncpy_from_user_64.S +++ b/arch/sparc/lib/strncpy_from_user_64.S @@ -4,6 +4,7 @@ * Copyright (C) 1997, 1999 Jakub Jelinek (jj@ultra.linux.cz) */ +#include <linux/linkage.h> #include <asm/asi.h> #include <asm/errno.h> @@ -12,7 +13,6 @@ 0: .xword 0x0101010101010101 .text - .align 32 /* Must return: * @@ -30,9 +30,7 @@ * and average length is 18 or so. */ - .globl __strncpy_from_user - .type __strncpy_from_user,#function -__strncpy_from_user: +ENTRY(__strncpy_from_user) /* %o0=dest, %o1=src, %o2=count */ andcc %o1, 7, %g0 ! IEU1 Group bne,pn %icc, 30f ! CTI @@ -123,7 +121,7 @@ __strncpy_from_user: mov %o2, %o0 2: retl add %o2, %o3, %o0 - .size __strncpy_from_user, .-__strncpy_from_user +ENDPROC(__strncpy_from_user) .section __ex_table,"a" .align 4 diff --git a/arch/sparc/lib/ucmpdi2.c b/arch/sparc/lib/ucmpdi2.c new file mode 100644 index 00000000000..1e06ed50068 --- /dev/null +++ b/arch/sparc/lib/ucmpdi2.c @@ -0,0 +1,19 @@ +#include <linux/module.h> +#include "libgcc.h" + +word_type __ucmpdi2(unsigned long long a, unsigned long long b) +{ + const DWunion au = {.ll = a}; + const DWunion bu = {.ll = b}; + + if ((unsigned int) au.s.high < (unsigned int) bu.s.high) + return 0; + else if ((unsigned int) au.s.high > (unsigned int) bu.s.high) + return 2; + if ((unsigned int) au.s.low < (unsigned int) bu.s.low) + return 0; + else if ((unsigned int) au.s.low > (unsigned int) bu.s.low) + return 2; + return 1; +} +EXPORT_SYMBOL(__ucmpdi2); diff --git a/arch/sparc/lib/udiv.S b/arch/sparc/lib/udiv.S deleted file mode 100644 index 2101405bdfc..00000000000 --- a/arch/sparc/lib/udiv.S +++ /dev/null @@ -1,357 +0,0 @@ -/* - * udiv.S: This routine was taken from glibc-1.09 and is covered - * by the GNU Library General Public License Version 2. - */ - - -/* This file is generated from divrem.m4; DO NOT EDIT! */ -/* - * Division and remainder, from Appendix E of the Sparc Version 8 - * Architecture Manual, with fixes from Gordon Irlam. - */ - -/* - * Input: dividend and divisor in %o0 and %o1 respectively. - * - * m4 parameters: - * .udiv name of function to generate - * div div=div => %o0 / %o1; div=rem => %o0 % %o1 - * false false=true => signed; false=false => unsigned - * - * Algorithm parameters: - * N how many bits per iteration we try to get (4) - * WORDSIZE total number of bits (32) - * - * Derived constants: - * TOPBITS number of bits in the top decade of a number - * - * Important variables: - * Q the partial quotient under development (initially 0) - * R the remainder so far, initially the dividend - * ITER number of main division loop iterations required; - * equal to ceil(log2(quotient) / N). Note that this - * is the log base (2^N) of the quotient. - * V the current comparand, initially divisor*2^(ITER*N-1) - * - * Cost: - * Current estimate for non-large dividend is - * ceil(log2(quotient) / N) * (10 + 7N/2) + C - * A large dividend is one greater than 2^(31-TOPBITS) and takes a - * different path, as the upper bits of the quotient must be developed - * one bit at a time. - */ - - - .globl .udiv - .globl _Udiv -.udiv: -_Udiv: /* needed for export */ - - ! Ready to divide. Compute size of quotient; scale comparand. - orcc %o1, %g0, %o5 - bne 1f - mov %o0, %o3 - - ! Divide by zero trap. If it returns, return 0 (about as - ! wrong as possible, but that is what SunOS does...). - ta ST_DIV0 - retl - clr %o0 - -1: - cmp %o3, %o5 ! if %o1 exceeds %o0, done - blu Lgot_result ! (and algorithm fails otherwise) - clr %o2 - - sethi %hi(1 << (32 - 4 - 1)), %g1 - - cmp %o3, %g1 - blu Lnot_really_big - clr %o4 - - ! Here the dividend is >= 2**(31-N) or so. We must be careful here, - ! as our usual N-at-a-shot divide step will cause overflow and havoc. - ! The number of bits in the result here is N*ITER+SC, where SC <= N. - ! Compute ITER in an unorthodox manner: know we need to shift V into - ! the top decade: so do not even bother to compare to R. - 1: - cmp %o5, %g1 - bgeu 3f - mov 1, %g7 - - sll %o5, 4, %o5 - - b 1b - add %o4, 1, %o4 - - ! Now compute %g7. - 2: - addcc %o5, %o5, %o5 - bcc Lnot_too_big - add %g7, 1, %g7 - - ! We get here if the %o1 overflowed while shifting. - ! This means that %o3 has the high-order bit set. - ! Restore %o5 and subtract from %o3. - sll %g1, 4, %g1 ! high order bit - srl %o5, 1, %o5 ! rest of %o5 - add %o5, %g1, %o5 - - b Ldo_single_div - sub %g7, 1, %g7 - - Lnot_too_big: - 3: - cmp %o5, %o3 - blu 2b - nop - - be Ldo_single_div - nop - /* NB: these are commented out in the V8-Sparc manual as well */ - /* (I do not understand this) */ - ! %o5 > %o3: went too far: back up 1 step - ! srl %o5, 1, %o5 - ! dec %g7 - ! do single-bit divide steps - ! - ! We have to be careful here. We know that %o3 >= %o5, so we can do the - ! first divide step without thinking. BUT, the others are conditional, - ! and are only done if %o3 >= 0. Because both %o3 and %o5 may have the high- - ! order bit set in the first step, just falling into the regular - ! division loop will mess up the first time around. - ! So we unroll slightly... - Ldo_single_div: - subcc %g7, 1, %g7 - bl Lend_regular_divide - nop - - sub %o3, %o5, %o3 - mov 1, %o2 - - b Lend_single_divloop - nop - Lsingle_divloop: - sll %o2, 1, %o2 - bl 1f - srl %o5, 1, %o5 - ! %o3 >= 0 - sub %o3, %o5, %o3 - b 2f - add %o2, 1, %o2 - 1: ! %o3 < 0 - add %o3, %o5, %o3 - sub %o2, 1, %o2 - 2: - Lend_single_divloop: - subcc %g7, 1, %g7 - bge Lsingle_divloop - tst %o3 - - b,a Lend_regular_divide - -Lnot_really_big: -1: - sll %o5, 4, %o5 - - cmp %o5, %o3 - bleu 1b - addcc %o4, 1, %o4 - - be Lgot_result - sub %o4, 1, %o4 - - tst %o3 ! set up for initial iteration -Ldivloop: - sll %o2, 4, %o2 - ! depth 1, accumulated bits 0 - bl L.1.16 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 2, accumulated bits 1 - bl L.2.17 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 3, accumulated bits 3 - bl L.3.19 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits 7 - bl L.4.23 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (7*2+1), %o2 - -L.4.23: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (7*2-1), %o2 - -L.3.19: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits 5 - bl L.4.21 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (5*2+1), %o2 - -L.4.21: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (5*2-1), %o2 - -L.2.17: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 3, accumulated bits 1 - bl L.3.17 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits 3 - bl L.4.19 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (3*2+1), %o2 - -L.4.19: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (3*2-1), %o2 - -L.3.17: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits 1 - bl L.4.17 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (1*2+1), %o2 - -L.4.17: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (1*2-1), %o2 - -L.1.16: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 2, accumulated bits -1 - bl L.2.15 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 3, accumulated bits -1 - bl L.3.15 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits -1 - bl L.4.15 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-1*2+1), %o2 - -L.4.15: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-1*2-1), %o2 - -L.3.15: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits -3 - bl L.4.13 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-3*2+1), %o2 - -L.4.13: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-3*2-1), %o2 - -L.2.15: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 3, accumulated bits -3 - bl L.3.13 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits -5 - bl L.4.11 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-5*2+1), %o2 - -L.4.11: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-5*2-1), %o2 - -L.3.13: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits -7 - bl L.4.9 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-7*2+1), %o2 - -L.4.9: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-7*2-1), %o2 - - 9: -Lend_regular_divide: - subcc %o4, 1, %o4 - bge Ldivloop - tst %o3 - - bl,a Lgot_result - ! non-restoring fixup here (one instruction only!) - sub %o2, 1, %o2 - -Lgot_result: - - retl - mov %o2, %o0 - - .globl .udiv_patch -.udiv_patch: - wr %g0, 0x0, %y - nop - nop - retl - udiv %o0, %o1, %o0 - nop diff --git a/arch/sparc/lib/udivdi3.S b/arch/sparc/lib/udivdi3.S index b430f1f0ef6..24e0a355e2e 100644 --- a/arch/sparc/lib/udivdi3.S +++ b/arch/sparc/lib/udivdi3.S @@ -60,8 +60,9 @@ __udivdi3: bne .LL77 mov %i0,%o2 mov 1,%o0 - call .udiv,0 mov 0,%o1 + wr %g0, 0, %y + udiv %o0, %o1, %o0 mov %o0,%o3 mov %i0,%o2 .LL77: diff --git a/arch/sparc/lib/umul.S b/arch/sparc/lib/umul.S deleted file mode 100644 index 1f36ae68252..00000000000 --- a/arch/sparc/lib/umul.S +++ /dev/null @@ -1,171 +0,0 @@ -/* - * umul.S: This routine was taken from glibc-1.09 and is covered - * by the GNU Library General Public License Version 2. - */ - - -/* - * Unsigned multiply. Returns %o0 * %o1 in %o1%o0 (i.e., %o1 holds the - * upper 32 bits of the 64-bit product). - * - * This code optimizes short (less than 13-bit) multiplies. Short - * multiplies require 25 instruction cycles, and long ones require - * 45 instruction cycles. - * - * On return, overflow has occurred (%o1 is not zero) if and only if - * the Z condition code is clear, allowing, e.g., the following: - * - * call .umul - * nop - * bnz overflow (or tnz) - */ - - .globl .umul - .globl _Umul -.umul: -_Umul: /* needed for export */ - or %o0, %o1, %o4 - mov %o0, %y ! multiplier -> Y - - andncc %o4, 0xfff, %g0 ! test bits 12..31 of *both* args - be Lmul_shortway ! if zero, can do it the short way - andcc %g0, %g0, %o4 ! zero the partial product and clear N and V - - /* - * Long multiply. 32 steps, followed by a final shift step. - */ - mulscc %o4, %o1, %o4 ! 1 - mulscc %o4, %o1, %o4 ! 2 - mulscc %o4, %o1, %o4 ! 3 - mulscc %o4, %o1, %o4 ! 4 - mulscc %o4, %o1, %o4 ! 5 - mulscc %o4, %o1, %o4 ! 6 - mulscc %o4, %o1, %o4 ! 7 - mulscc %o4, %o1, %o4 ! 8 - mulscc %o4, %o1, %o4 ! 9 - mulscc %o4, %o1, %o4 ! 10 - mulscc %o4, %o1, %o4 ! 11 - mulscc %o4, %o1, %o4 ! 12 - mulscc %o4, %o1, %o4 ! 13 - mulscc %o4, %o1, %o4 ! 14 - mulscc %o4, %o1, %o4 ! 15 - mulscc %o4, %o1, %o4 ! 16 - mulscc %o4, %o1, %o4 ! 17 - mulscc %o4, %o1, %o4 ! 18 - mulscc %o4, %o1, %o4 ! 19 - mulscc %o4, %o1, %o4 ! 20 - mulscc %o4, %o1, %o4 ! 21 - mulscc %o4, %o1, %o4 ! 22 - mulscc %o4, %o1, %o4 ! 23 - mulscc %o4, %o1, %o4 ! 24 - mulscc %o4, %o1, %o4 ! 25 - mulscc %o4, %o1, %o4 ! 26 - mulscc %o4, %o1, %o4 ! 27 - mulscc %o4, %o1, %o4 ! 28 - mulscc %o4, %o1, %o4 ! 29 - mulscc %o4, %o1, %o4 ! 30 - mulscc %o4, %o1, %o4 ! 31 - mulscc %o4, %o1, %o4 ! 32 - mulscc %o4, %g0, %o4 ! final shift - - - /* - * Normally, with the shift-and-add approach, if both numbers are - * positive you get the correct result. With 32-bit two's-complement - * numbers, -x is represented as - * - * x 32 - * ( 2 - ------ ) mod 2 * 2 - * 32 - * 2 - * - * (the `mod 2' subtracts 1 from 1.bbbb). To avoid lots of 2^32s, - * we can treat this as if the radix point were just to the left - * of the sign bit (multiply by 2^32), and get - * - * -x = (2 - x) mod 2 - * - * Then, ignoring the `mod 2's for convenience: - * - * x * y = xy - * -x * y = 2y - xy - * x * -y = 2x - xy - * -x * -y = 4 - 2x - 2y + xy - * - * For signed multiplies, we subtract (x << 32) from the partial - * product to fix this problem for negative multipliers (see mul.s). - * Because of the way the shift into the partial product is calculated - * (N xor V), this term is automatically removed for the multiplicand, - * so we don't have to adjust. - * - * But for unsigned multiplies, the high order bit wasn't a sign bit, - * and the correction is wrong. So for unsigned multiplies where the - * high order bit is one, we end up with xy - (y << 32). To fix it - * we add y << 32. - */ -#if 0 - tst %o1 - bl,a 1f ! if %o1 < 0 (high order bit = 1), - add %o4, %o0, %o4 ! %o4 += %o0 (add y to upper half) - -1: - rd %y, %o0 ! get lower half of product - retl - addcc %o4, %g0, %o1 ! put upper half in place and set Z for %o1==0 -#else - /* Faster code from tege@sics.se. */ - sra %o1, 31, %o2 ! make mask from sign bit - and %o0, %o2, %o2 ! %o2 = 0 or %o0, depending on sign of %o1 - rd %y, %o0 ! get lower half of product - retl - addcc %o4, %o2, %o1 ! add compensation and put upper half in place -#endif - -Lmul_shortway: - /* - * Short multiply. 12 steps, followed by a final shift step. - * The resulting bits are off by 12 and (32-12) = 20 bit positions, - * but there is no problem with %o0 being negative (unlike above), - * and overflow is impossible (the answer is at most 24 bits long). - */ - mulscc %o4, %o1, %o4 ! 1 - mulscc %o4, %o1, %o4 ! 2 - mulscc %o4, %o1, %o4 ! 3 - mulscc %o4, %o1, %o4 ! 4 - mulscc %o4, %o1, %o4 ! 5 - mulscc %o4, %o1, %o4 ! 6 - mulscc %o4, %o1, %o4 ! 7 - mulscc %o4, %o1, %o4 ! 8 - mulscc %o4, %o1, %o4 ! 9 - mulscc %o4, %o1, %o4 ! 10 - mulscc %o4, %o1, %o4 ! 11 - mulscc %o4, %o1, %o4 ! 12 - mulscc %o4, %g0, %o4 ! final shift - - /* - * %o4 has 20 of the bits that should be in the result; %y has - * the bottom 12 (as %y's top 12). That is: - * - * %o4 %y - * +----------------+----------------+ - * | -12- | -20- | -12- | -20- | - * +------(---------+------)---------+ - * -----result----- - * - * The 12 bits of %o4 left of the `result' area are all zero; - * in fact, all top 20 bits of %o4 are zero. - */ - - rd %y, %o5 - sll %o4, 12, %o0 ! shift middle bits left 12 - srl %o5, 20, %o5 ! shift low bits right 20 - or %o5, %o0, %o0 - retl - addcc %g0, %g0, %o1 ! %o1 = zero, and set Z - - .globl .umul_patch -.umul_patch: - umul %o0, %o1, %o0 - retl - rd %y, %o1 - nop diff --git a/arch/sparc/lib/urem.S b/arch/sparc/lib/urem.S deleted file mode 100644 index 77123eb83c4..00000000000 --- a/arch/sparc/lib/urem.S +++ /dev/null @@ -1,357 +0,0 @@ -/* - * urem.S: This routine was taken from glibc-1.09 and is covered - * by the GNU Library General Public License Version 2. - */ - -/* This file is generated from divrem.m4; DO NOT EDIT! */ -/* - * Division and remainder, from Appendix E of the Sparc Version 8 - * Architecture Manual, with fixes from Gordon Irlam. - */ - -/* - * Input: dividend and divisor in %o0 and %o1 respectively. - * - * m4 parameters: - * .urem name of function to generate - * rem rem=div => %o0 / %o1; rem=rem => %o0 % %o1 - * false false=true => signed; false=false => unsigned - * - * Algorithm parameters: - * N how many bits per iteration we try to get (4) - * WORDSIZE total number of bits (32) - * - * Derived constants: - * TOPBITS number of bits in the top decade of a number - * - * Important variables: - * Q the partial quotient under development (initially 0) - * R the remainder so far, initially the dividend - * ITER number of main division loop iterations required; - * equal to ceil(log2(quotient) / N). Note that this - * is the log base (2^N) of the quotient. - * V the current comparand, initially divisor*2^(ITER*N-1) - * - * Cost: - * Current estimate for non-large dividend is - * ceil(log2(quotient) / N) * (10 + 7N/2) + C - * A large dividend is one greater than 2^(31-TOPBITS) and takes a - * different path, as the upper bits of the quotient must be developed - * one bit at a time. - */ - - .globl .urem - .globl _Urem -.urem: -_Urem: /* needed for export */ - - ! Ready to divide. Compute size of quotient; scale comparand. - orcc %o1, %g0, %o5 - bne 1f - mov %o0, %o3 - - ! Divide by zero trap. If it returns, return 0 (about as - ! wrong as possible, but that is what SunOS does...). - ta ST_DIV0 - retl - clr %o0 - -1: - cmp %o3, %o5 ! if %o1 exceeds %o0, done - blu Lgot_result ! (and algorithm fails otherwise) - clr %o2 - - sethi %hi(1 << (32 - 4 - 1)), %g1 - - cmp %o3, %g1 - blu Lnot_really_big - clr %o4 - - ! Here the dividend is >= 2**(31-N) or so. We must be careful here, - ! as our usual N-at-a-shot divide step will cause overflow and havoc. - ! The number of bits in the result here is N*ITER+SC, where SC <= N. - ! Compute ITER in an unorthodox manner: know we need to shift V into - ! the top decade: so do not even bother to compare to R. - 1: - cmp %o5, %g1 - bgeu 3f - mov 1, %g7 - - sll %o5, 4, %o5 - - b 1b - add %o4, 1, %o4 - - ! Now compute %g7. - 2: - addcc %o5, %o5, %o5 - bcc Lnot_too_big - add %g7, 1, %g7 - - ! We get here if the %o1 overflowed while shifting. - ! This means that %o3 has the high-order bit set. - ! Restore %o5 and subtract from %o3. - sll %g1, 4, %g1 ! high order bit - srl %o5, 1, %o5 ! rest of %o5 - add %o5, %g1, %o5 - - b Ldo_single_div - sub %g7, 1, %g7 - - Lnot_too_big: - 3: - cmp %o5, %o3 - blu 2b - nop - - be Ldo_single_div - nop - /* NB: these are commented out in the V8-Sparc manual as well */ - /* (I do not understand this) */ - ! %o5 > %o3: went too far: back up 1 step - ! srl %o5, 1, %o5 - ! dec %g7 - ! do single-bit divide steps - ! - ! We have to be careful here. We know that %o3 >= %o5, so we can do the - ! first divide step without thinking. BUT, the others are conditional, - ! and are only done if %o3 >= 0. Because both %o3 and %o5 may have the high- - ! order bit set in the first step, just falling into the regular - ! division loop will mess up the first time around. - ! So we unroll slightly... - Ldo_single_div: - subcc %g7, 1, %g7 - bl Lend_regular_divide - nop - - sub %o3, %o5, %o3 - mov 1, %o2 - - b Lend_single_divloop - nop - Lsingle_divloop: - sll %o2, 1, %o2 - bl 1f - srl %o5, 1, %o5 - ! %o3 >= 0 - sub %o3, %o5, %o3 - b 2f - add %o2, 1, %o2 - 1: ! %o3 < 0 - add %o3, %o5, %o3 - sub %o2, 1, %o2 - 2: - Lend_single_divloop: - subcc %g7, 1, %g7 - bge Lsingle_divloop - tst %o3 - - b,a Lend_regular_divide - -Lnot_really_big: -1: - sll %o5, 4, %o5 - - cmp %o5, %o3 - bleu 1b - addcc %o4, 1, %o4 - - be Lgot_result - sub %o4, 1, %o4 - - tst %o3 ! set up for initial iteration -Ldivloop: - sll %o2, 4, %o2 - ! depth 1, accumulated bits 0 - bl L.1.16 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 2, accumulated bits 1 - bl L.2.17 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 3, accumulated bits 3 - bl L.3.19 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits 7 - bl L.4.23 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (7*2+1), %o2 - -L.4.23: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (7*2-1), %o2 - -L.3.19: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits 5 - bl L.4.21 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (5*2+1), %o2 - -L.4.21: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (5*2-1), %o2 - -L.2.17: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 3, accumulated bits 1 - bl L.3.17 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits 3 - bl L.4.19 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (3*2+1), %o2 - -L.4.19: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (3*2-1), %o2 - -L.3.17: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits 1 - bl L.4.17 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (1*2+1), %o2 - -L.4.17: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (1*2-1), %o2 - -L.1.16: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 2, accumulated bits -1 - bl L.2.15 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 3, accumulated bits -1 - bl L.3.15 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits -1 - bl L.4.15 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-1*2+1), %o2 - -L.4.15: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-1*2-1), %o2 - -L.3.15: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits -3 - bl L.4.13 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-3*2+1), %o2 - -L.4.13: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-3*2-1), %o2 - -L.2.15: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 3, accumulated bits -3 - bl L.3.13 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - ! depth 4, accumulated bits -5 - bl L.4.11 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-5*2+1), %o2 - -L.4.11: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-5*2-1), %o2 - -L.3.13: - ! remainder is negative - addcc %o3,%o5,%o3 - ! depth 4, accumulated bits -7 - bl L.4.9 - srl %o5,1,%o5 - ! remainder is positive - subcc %o3,%o5,%o3 - b 9f - add %o2, (-7*2+1), %o2 - -L.4.9: - ! remainder is negative - addcc %o3,%o5,%o3 - b 9f - add %o2, (-7*2-1), %o2 - - 9: -Lend_regular_divide: - subcc %o4, 1, %o4 - bge Ldivloop - tst %o3 - - bl,a Lgot_result - ! non-restoring fixup here (one instruction only!) - add %o3, %o1, %o3 - -Lgot_result: - - retl - mov %o3, %o0 - - .globl .urem_patch -.urem_patch: - wr %g0, 0x0, %y - nop - nop - nop - udiv %o0, %o1, %o2 - umul %o2, %o1, %o2 - retl - sub %o0, %o2, %o0 diff --git a/arch/sparc/lib/xor.S b/arch/sparc/lib/xor.S index f44f58f4023..2c05641c326 100644 --- a/arch/sparc/lib/xor.S +++ b/arch/sparc/lib/xor.S @@ -8,6 +8,7 @@ * Copyright (C) 2006 David S. Miller <davem@davemloft.net> */ +#include <linux/linkage.h> #include <asm/visasm.h> #include <asm/asi.h> #include <asm/dcu.h> @@ -19,12 +20,9 @@ * !(len & 127) && len >= 256 */ .text - .align 32 /* VIS versions. */ - .globl xor_vis_2 - .type xor_vis_2,#function -xor_vis_2: +ENTRY(xor_vis_2) rd %fprs, %o5 andcc %o5, FPRS_FEF|FPRS_DU, %g0 be,pt %icc, 0f @@ -91,11 +89,9 @@ xor_vis_2: wr %g1, %g0, %asi retl wr %g0, 0, %fprs - .size xor_vis_2, .-xor_vis_2 +ENDPROC(xor_vis_2) - .globl xor_vis_3 - .type xor_vis_3,#function -xor_vis_3: +ENTRY(xor_vis_3) rd %fprs, %o5 andcc %o5, FPRS_FEF|FPRS_DU, %g0 be,pt %icc, 0f @@ -159,11 +155,9 @@ xor_vis_3: wr %g1, %g0, %asi retl wr %g0, 0, %fprs - .size xor_vis_3, .-xor_vis_3 +ENDPROC(xor_vis_3) - .globl xor_vis_4 - .type xor_vis_4,#function -xor_vis_4: +ENTRY(xor_vis_4) rd %fprs, %o5 andcc %o5, FPRS_FEF|FPRS_DU, %g0 be,pt %icc, 0f @@ -246,11 +240,9 @@ xor_vis_4: wr %g1, %g0, %asi retl wr %g0, 0, %fprs - .size xor_vis_4, .-xor_vis_4 +ENDPROC(xor_vis_4) - .globl xor_vis_5 - .type xor_vis_5,#function -xor_vis_5: +ENTRY(xor_vis_5) save %sp, -192, %sp rd %fprs, %o5 andcc %o5, FPRS_FEF|FPRS_DU, %g0 @@ -354,12 +346,10 @@ xor_vis_5: wr %g0, 0, %fprs ret restore - .size xor_vis_5, .-xor_vis_5 +ENDPROC(xor_vis_5) /* Niagara versions. */ - .globl xor_niagara_2 - .type xor_niagara_2,#function -xor_niagara_2: /* %o0=bytes, %o1=dest, %o2=src */ +ENTRY(xor_niagara_2) /* %o0=bytes, %o1=dest, %o2=src */ save %sp, -192, %sp prefetch [%i1], #n_writes prefetch [%i2], #one_read @@ -402,11 +392,9 @@ xor_niagara_2: /* %o0=bytes, %o1=dest, %o2=src */ wr %g7, 0x0, %asi ret restore - .size xor_niagara_2, .-xor_niagara_2 +ENDPROC(xor_niagara_2) - .globl xor_niagara_3 - .type xor_niagara_3,#function -xor_niagara_3: /* %o0=bytes, %o1=dest, %o2=src1, %o3=src2 */ +ENTRY(xor_niagara_3) /* %o0=bytes, %o1=dest, %o2=src1, %o3=src2 */ save %sp, -192, %sp prefetch [%i1], #n_writes prefetch [%i2], #one_read @@ -465,11 +453,9 @@ xor_niagara_3: /* %o0=bytes, %o1=dest, %o2=src1, %o3=src2 */ wr %g7, 0x0, %asi ret restore - .size xor_niagara_3, .-xor_niagara_3 +ENDPROC(xor_niagara_3) - .globl xor_niagara_4 - .type xor_niagara_4,#function -xor_niagara_4: /* %o0=bytes, %o1=dest, %o2=src1, %o3=src2, %o4=src3 */ +ENTRY(xor_niagara_4) /* %o0=bytes, %o1=dest, %o2=src1, %o3=src2, %o4=src3 */ save %sp, -192, %sp prefetch [%i1], #n_writes prefetch [%i2], #one_read @@ -549,11 +535,9 @@ xor_niagara_4: /* %o0=bytes, %o1=dest, %o2=src1, %o3=src2, %o4=src3 */ wr %g7, 0x0, %asi ret restore - .size xor_niagara_4, .-xor_niagara_4 +ENDPROC(xor_niagara_4) - .globl xor_niagara_5 - .type xor_niagara_5,#function -xor_niagara_5: /* %o0=bytes, %o1=dest, %o2=src1, %o3=src2, %o4=src3, %o5=src4 */ +ENTRY(xor_niagara_5) /* %o0=bytes, %o1=dest, %o2=src1, %o3=src2, %o4=src3, %o5=src4 */ save %sp, -192, %sp prefetch [%i1], #n_writes prefetch [%i2], #one_read @@ -649,4 +633,4 @@ xor_niagara_5: /* %o0=bytes, %o1=dest, %o2=src1, %o3=src2, %o4=src3, %o5=src4 * wr %g7, 0x0, %asi ret restore - .size xor_niagara_5, .-xor_niagara_5 +ENDPROC(xor_niagara_5) diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile index 301421c1129..69ffd3112fe 100644 --- a/arch/sparc/mm/Makefile +++ b/arch/sparc/mm/Makefile @@ -7,8 +7,7 @@ ccflags-y := -Werror obj-$(CONFIG_SPARC64) += ultra.o tlb.o tsb.o gup.o obj-y += fault_$(BITS).o obj-y += init_$(BITS).o -obj-$(CONFIG_SPARC32) += loadmmu.o -obj-$(CONFIG_SPARC32) += extable.o btfixup.o srmmu.o iommu.o io-unit.o +obj-$(CONFIG_SPARC32) += extable.o srmmu.o iommu.o io-unit.o obj-$(CONFIG_SPARC32) += hypersparc.o viking.o tsunami.o swift.o obj-$(CONFIG_SPARC_LEON)+= leon_mm.o @@ -17,9 +16,3 @@ obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o # Only used by sparc32 obj-$(CONFIG_HIGHMEM) += highmem.o - -ifdef CONFIG_SMP -obj-$(CONFIG_SPARC32) += nosun4c.o -else -obj-$(CONFIG_SPARC32) += sun4c.o -endif diff --git a/arch/sparc/mm/btfixup.c b/arch/sparc/mm/btfixup.c deleted file mode 100644 index 09d6af22db2..00000000000 --- a/arch/sparc/mm/btfixup.c +++ /dev/null @@ -1,328 +0,0 @@ -/* btfixup.c: Boot time code fixup and relocator, so that - * we can get rid of most indirect calls to achieve single - * image sun4c and srmmu kernel. - * - * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <asm/btfixup.h> -#include <asm/page.h> -#include <asm/pgalloc.h> -#include <asm/pgtable.h> -#include <asm/oplib.h> -#include <asm/cacheflush.h> - -#define BTFIXUP_OPTIMIZE_NOP -#define BTFIXUP_OPTIMIZE_OTHER - -extern char *srmmu_name; -static char version[] __initdata = "Boot time fixup v1.6. 4/Mar/98 Jakub Jelinek (jj@ultra.linux.cz). Patching kernel for "; -static char str_sun4c[] __initdata = "sun4c\n"; -static char str_srmmu[] __initdata = "srmmu[%s]/"; -static char str_iommu[] __initdata = "iommu\n"; -static char str_iounit[] __initdata = "io-unit\n"; - -static int visited __initdata = 0; -extern unsigned int ___btfixup_start[], ___btfixup_end[], __init_begin[], __init_end[], __init_text_end[]; -extern unsigned int _stext[], _end[], __start___ksymtab[], __stop___ksymtab[]; -static char wrong_f[] __initdata = "Trying to set f fixup %p to invalid function %08x\n"; -static char wrong_b[] __initdata = "Trying to set b fixup %p to invalid function %08x\n"; -static char wrong_s[] __initdata = "Trying to set s fixup %p to invalid value %08x\n"; -static char wrong_h[] __initdata = "Trying to set h fixup %p to invalid value %08x\n"; -static char wrong_a[] __initdata = "Trying to set a fixup %p to invalid value %08x\n"; -static char wrong[] __initdata = "Wrong address for %c fixup %p\n"; -static char insn_f[] __initdata = "Fixup f %p refers to weird instructions at %p[%08x,%08x]\n"; -static char insn_b[] __initdata = "Fixup b %p doesn't refer to a SETHI at %p[%08x]\n"; -static char insn_s[] __initdata = "Fixup s %p doesn't refer to an OR at %p[%08x]\n"; -static char insn_h[] __initdata = "Fixup h %p doesn't refer to a SETHI at %p[%08x]\n"; -static char insn_a[] __initdata = "Fixup a %p doesn't refer to a SETHI nor OR at %p[%08x]\n"; -static char insn_i[] __initdata = "Fixup i %p doesn't refer to a valid instruction at %p[%08x]\n"; -static char fca_und[] __initdata = "flush_cache_all undefined in btfixup()\n"; -static char wrong_setaddr[] __initdata = "Garbled CALL/INT patch at %p[%08x,%08x,%08x]=%08x\n"; - -#ifdef BTFIXUP_OPTIMIZE_OTHER -static void __init set_addr(unsigned int *addr, unsigned int q1, int fmangled, unsigned int value) -{ - if (!fmangled) - *addr = value; - else { - unsigned int *q = (unsigned int *)q1; - if (*addr == 0x01000000) { - /* Noped */ - *q = value; - } else if (addr[-1] == *q) { - /* Moved */ - addr[-1] = value; - *q = value; - } else { - prom_printf(wrong_setaddr, addr-1, addr[-1], *addr, *q, value); - prom_halt(); - } - } -} -#else -static inline void set_addr(unsigned int *addr, unsigned int q1, int fmangled, unsigned int value) -{ - *addr = value; -} -#endif - -void __init btfixup(void) -{ - unsigned int *p, *q; - int type, count; - unsigned insn; - unsigned *addr; - int fmangled = 0; - void (*flush_cacheall)(void); - - if (!visited) { - visited++; - printk(version); - if (ARCH_SUN4C) - printk(str_sun4c); - else { - printk(str_srmmu, srmmu_name); - if (sparc_cpu_model == sun4d) - printk(str_iounit); - else - printk(str_iommu); - } - } - for (p = ___btfixup_start; p < ___btfixup_end; ) { - count = p[2]; - q = p + 3; - switch (type = *(unsigned char *)p) { - case 'f': - count = p[3]; - q = p + 4; - if (((p[0] & 1) || p[1]) - && ((p[1] & 3) || (unsigned *)(p[1]) < _stext || (unsigned *)(p[1]) >= _end)) { - prom_printf(wrong_f, p, p[1]); - prom_halt(); - } - break; - case 'b': - if (p[1] < (unsigned long)__init_begin || p[1] >= (unsigned long)__init_text_end || (p[1] & 3)) { - prom_printf(wrong_b, p, p[1]); - prom_halt(); - } - break; - case 's': - if (p[1] + 0x1000 >= 0x2000) { - prom_printf(wrong_s, p, p[1]); - prom_halt(); - } - break; - case 'h': - if (p[1] & 0x3ff) { - prom_printf(wrong_h, p, p[1]); - prom_halt(); - } - break; - case 'a': - if (p[1] + 0x1000 >= 0x2000 && (p[1] & 0x3ff)) { - prom_printf(wrong_a, p, p[1]); - prom_halt(); - } - break; - } - if (p[0] & 1) { - p[0] &= ~1; - while (count) { - fmangled = 0; - addr = (unsigned *)*q; - if (addr < _stext || addr >= _end) { - prom_printf(wrong, type, p); - prom_halt(); - } - insn = *addr; -#ifdef BTFIXUP_OPTIMIZE_OTHER - if (type != 'f' && q[1]) { - insn = *(unsigned int *)q[1]; - if (!insn || insn == 1) - insn = *addr; - else - fmangled = 1; - } -#endif - switch (type) { - case 'f': /* CALL */ - if (addr >= __start___ksymtab && addr < __stop___ksymtab) { - *addr = p[1]; - break; - } else if (!q[1]) { - if ((insn & 0xc1c00000) == 0x01000000) { /* SETHI */ - *addr = (insn & 0xffc00000) | (p[1] >> 10); break; - } else if ((insn & 0xc1f82000) == 0x80102000) { /* OR X, %LO(i), Y */ - *addr = (insn & 0xffffe000) | (p[1] & 0x3ff); break; - } else if ((insn & 0xc0000000) != 0x40000000) { /* !CALL */ - bad_f: - prom_printf(insn_f, p, addr, insn, addr[1]); - prom_halt(); - } - } else if (q[1] != 1) - addr[1] = q[1]; - if (p[2] == BTFIXUPCALL_NORM) { - norm_f: - *addr = 0x40000000 | ((p[1] - (unsigned)addr) >> 2); - q[1] = 0; - break; - } -#ifndef BTFIXUP_OPTIMIZE_NOP - goto norm_f; -#else - if (!(addr[1] & 0x80000000)) { - if ((addr[1] & 0xc1c00000) != 0x01000000) /* !SETHI */ - goto bad_f; /* CALL, Bicc, FBfcc, CBccc are weird in delay slot, aren't they? */ - } else { - if ((addr[1] & 0x01800000) == 0x01800000) { - if ((addr[1] & 0x01f80000) == 0x01e80000) { - /* RESTORE */ - goto norm_f; /* It is dangerous to patch that */ - } - goto bad_f; - } - if ((addr[1] & 0xffffe003) == 0x9e03e000) { - /* ADD %O7, XX, %o7 */ - int displac = (addr[1] << 19); - - displac = (displac >> 21) + 2; - *addr = (0x10800000) + (displac & 0x3fffff); - q[1] = addr[1]; - addr[1] = p[2]; - break; - } - if ((addr[1] & 0x201f) == 0x200f || (addr[1] & 0x7c000) == 0x3c000) - goto norm_f; /* Someone is playing bad tricks with us: rs1 or rs2 is o7 */ - if ((addr[1] & 0x3e000000) == 0x1e000000) - goto norm_f; /* rd is %o7. We'd better take care. */ - } - if (p[2] == BTFIXUPCALL_NOP) { - *addr = 0x01000000; - q[1] = 1; - break; - } -#ifndef BTFIXUP_OPTIMIZE_OTHER - goto norm_f; -#else - if (addr[1] == 0x01000000) { /* NOP in the delay slot */ - q[1] = addr[1]; - *addr = p[2]; - break; - } - if ((addr[1] & 0xc0000000) != 0xc0000000) { - /* Not a memory operation */ - if ((addr[1] & 0x30000000) == 0x10000000) { - /* Ok, non-memory op with rd %oX */ - if ((addr[1] & 0x3e000000) == 0x1c000000) - goto bad_f; /* Aiee. Someone is playing strange %sp tricks */ - if ((addr[1] & 0x3e000000) > 0x12000000 || - ((addr[1] & 0x3e000000) == 0x12000000 && - p[2] != BTFIXUPCALL_STO1O0 && p[2] != BTFIXUPCALL_SWAPO0O1) || - ((p[2] & 0xffffe000) == BTFIXUPCALL_RETINT(0))) { - /* Nobody uses the result. We can nop it out. */ - *addr = p[2]; - q[1] = addr[1]; - addr[1] = 0x01000000; - break; - } - if ((addr[1] & 0xf1ffffe0) == 0x90100000) { - /* MOV %reg, %Ox */ - if ((addr[1] & 0x3e000000) == 0x10000000 && - (p[2] & 0x7c000) == 0x20000) { - /* Ok, it is call xx; mov reg, %o0 and call optimizes - to doing something on %o0. Patch the patch. */ - *addr = (p[2] & ~0x7c000) | ((addr[1] & 0x1f) << 14); - q[1] = addr[1]; - addr[1] = 0x01000000; - break; - } - if ((addr[1] & 0x3e000000) == 0x12000000 && - p[2] == BTFIXUPCALL_STO1O0) { - *addr = (p[2] & ~0x3e000000) | ((addr[1] & 0x1f) << 25); - q[1] = addr[1]; - addr[1] = 0x01000000; - break; - } - } - } - } - *addr = addr[1]; - q[1] = addr[1]; - addr[1] = p[2]; - break; -#endif /* BTFIXUP_OPTIMIZE_OTHER */ -#endif /* BTFIXUP_OPTIMIZE_NOP */ - case 'b': /* BLACKBOX */ - /* Has to be sethi i, xx */ - if ((insn & 0xc1c00000) != 0x01000000) { - prom_printf(insn_b, p, addr, insn); - prom_halt(); - } else { - void (*do_fixup)(unsigned *); - - do_fixup = (void (*)(unsigned *))p[1]; - do_fixup(addr); - } - break; - case 's': /* SIMM13 */ - /* Has to be or %g0, i, xx */ - if ((insn & 0xc1ffe000) != 0x80102000) { - prom_printf(insn_s, p, addr, insn); - prom_halt(); - } - set_addr(addr, q[1], fmangled, (insn & 0xffffe000) | (p[1] & 0x1fff)); - break; - case 'h': /* SETHI */ - /* Has to be sethi i, xx */ - if ((insn & 0xc1c00000) != 0x01000000) { - prom_printf(insn_h, p, addr, insn); - prom_halt(); - } - set_addr(addr, q[1], fmangled, (insn & 0xffc00000) | (p[1] >> 10)); - break; - case 'a': /* HALF */ - /* Has to be sethi i, xx or or %g0, i, xx */ - if ((insn & 0xc1c00000) != 0x01000000 && - (insn & 0xc1ffe000) != 0x80102000) { - prom_printf(insn_a, p, addr, insn); - prom_halt(); - } - if (p[1] & 0x3ff) - set_addr(addr, q[1], fmangled, - (insn & 0x3e000000) | 0x80102000 | (p[1] & 0x1fff)); - else - set_addr(addr, q[1], fmangled, - (insn & 0x3e000000) | 0x01000000 | (p[1] >> 10)); - break; - case 'i': /* INT */ - if ((insn & 0xc1c00000) == 0x01000000) /* %HI */ - set_addr(addr, q[1], fmangled, (insn & 0xffc00000) | (p[1] >> 10)); - else if ((insn & 0x80002000) == 0x80002000) /* %LO */ - set_addr(addr, q[1], fmangled, (insn & 0xffffe000) | (p[1] & 0x3ff)); - else { - prom_printf(insn_i, p, addr, insn); - prom_halt(); - } - break; - } - count -= 2; - q += 2; - } - } else - p = q + count; - } -#ifdef CONFIG_SMP - flush_cacheall = (void (*)(void))BTFIXUPVAL_CALL(local_flush_cache_all); -#else - flush_cacheall = (void (*)(void))BTFIXUPVAL_CALL(flush_cache_all); -#endif - if (!flush_cacheall) { - prom_printf(fca_und); - prom_halt(); - } - (*flush_cacheall)(); -} diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c index df3155a1799..f46cf6be337 100644 --- a/arch/sparc/mm/fault_32.c +++ b/arch/sparc/mm/fault_32.c @@ -24,29 +24,19 @@ #include <asm/page.h> #include <asm/pgtable.h> -#include <asm/memreg.h> #include <asm/openprom.h> #include <asm/oplib.h> #include <asm/smp.h> #include <asm/traps.h> #include <asm/uaccess.h> -extern int prom_node_root; - int show_unhandled_signals = 1; /* At boot time we determine these two values necessary for setting * up the segment maps and page table entries (pte's). */ -int num_segmaps, num_contexts; -int invalid_segment; - -/* various Virtual Address Cache parameters we find at boot time... */ - -int vac_size, vac_linesize, vac_do_hw_vac_flushes; -int vac_entries_per_context, vac_entries_per_segment; -int vac_entries_per_page; +int num_contexts; /* Return how much physical memory we have. */ unsigned long probe_memory(void) @@ -60,55 +50,36 @@ unsigned long probe_memory(void) return total; } -extern void sun4c_complete_all_stores(void); - -/* Whee, a level 15 NMI interrupt memory error. Let's have fun... */ -asmlinkage void sparc_lvl15_nmi(struct pt_regs *regs, unsigned long serr, - unsigned long svaddr, unsigned long aerr, - unsigned long avaddr) -{ - sun4c_complete_all_stores(); - printk("FAULT: NMI received\n"); - printk("SREGS: Synchronous Error %08lx\n", serr); - printk(" Synchronous Vaddr %08lx\n", svaddr); - printk(" Asynchronous Error %08lx\n", aerr); - printk(" Asynchronous Vaddr %08lx\n", avaddr); - if (sun4c_memerr_reg) - printk(" Memory Parity Error %08lx\n", *sun4c_memerr_reg); - printk("REGISTER DUMP:\n"); - show_regs(regs); - prom_halt(); -} - static void unhandled_fault(unsigned long, struct task_struct *, struct pt_regs *) __attribute__ ((noreturn)); -static void unhandled_fault(unsigned long address, struct task_struct *tsk, - struct pt_regs *regs) +static void __noreturn unhandled_fault(unsigned long address, + struct task_struct *tsk, + struct pt_regs *regs) { - if((unsigned long) address < PAGE_SIZE) { + if ((unsigned long) address < PAGE_SIZE) { printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference\n"); } else { - printk(KERN_ALERT "Unable to handle kernel paging request " - "at virtual address %08lx\n", address); + printk(KERN_ALERT "Unable to handle kernel paging request at virtual address %08lx\n", + address); } printk(KERN_ALERT "tsk->{mm,active_mm}->context = %08lx\n", (tsk->mm ? tsk->mm->context : tsk->active_mm->context)); printk(KERN_ALERT "tsk->{mm,active_mm}->pgd = %08lx\n", (tsk->mm ? (unsigned long) tsk->mm->pgd : - (unsigned long) tsk->active_mm->pgd)); + (unsigned long) tsk->active_mm->pgd)); die_if_kernel("Oops", regs); } -asmlinkage int lookup_fault(unsigned long pc, unsigned long ret_pc, +asmlinkage int lookup_fault(unsigned long pc, unsigned long ret_pc, unsigned long address) { struct pt_regs regs; unsigned long g2; unsigned int insn; int i; - + i = search_extables_range(ret_pc, &g2); switch (i) { case 3: @@ -128,14 +99,14 @@ asmlinkage int lookup_fault(unsigned long pc, unsigned long ret_pc, /* for _from_ macros */ insn = *((unsigned int *) pc); if (!((insn >> 21) & 1) || ((insn>>19)&0x3f) == 15) - return 2; - break; + return 2; + break; default: break; } - memset(®s, 0, sizeof (regs)); + memset(®s, 0, sizeof(regs)); regs.pc = pc; regs.npc = pc + 4; __asm__ __volatile__( @@ -198,11 +169,10 @@ static unsigned long compute_si_addr(struct pt_regs *regs, int text_fault) if (text_fault) return regs->pc; - if (regs->psr & PSR_PS) { + if (regs->psr & PSR_PS) insn = *(unsigned int *) regs->pc; - } else { + else __get_user(insn, (unsigned int *) regs->pc); - } return safe_compute_effective_address(regs, insn); } @@ -228,7 +198,7 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write, unsigned int flags = (FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE | (write ? FAULT_FLAG_WRITE : 0)); - if(text_fault) + if (text_fault) address = regs->pc; /* @@ -241,36 +211,32 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write, * nothing more. */ code = SEGV_MAPERR; - if (!ARCH_SUN4C && address >= TASK_SIZE) + if (address >= TASK_SIZE) goto vmalloc_fault; /* * If we're in an interrupt or have no user * context, we must not take the fault.. */ - if (in_atomic() || !mm) - goto no_context; + if (in_atomic() || !mm) + goto no_context; perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address); retry: down_read(&mm->mmap_sem); - /* - * The kernel referencing a bad kernel pointer can lock up - * a sun4c machine completely, so we must attempt recovery. - */ - if(!from_user && address >= PAGE_OFFSET) + if (!from_user && address >= PAGE_OFFSET) goto bad_area; vma = find_vma(mm, address); - if(!vma) + if (!vma) goto bad_area; - if(vma->vm_start <= address) + if (vma->vm_start <= address) goto good_area; - if(!(vma->vm_flags & VM_GROWSDOWN)) + if (!(vma->vm_flags & VM_GROWSDOWN)) goto bad_area; - if(expand_stack(vma, address)) + if (expand_stack(vma, address)) goto bad_area; /* * Ok, we have a good vm_area for this memory access, so @@ -278,12 +244,12 @@ retry: */ good_area: code = SEGV_ACCERR; - if(write) { - if(!(vma->vm_flags & VM_WRITE)) + if (write) { + if (!(vma->vm_flags & VM_WRITE)) goto bad_area; } else { /* Allow reads even for write-only mappings */ - if(!(vma->vm_flags & (VM_READ | VM_EXEC))) + if (!(vma->vm_flags & (VM_READ | VM_EXEC))) goto bad_area; } @@ -349,14 +315,16 @@ no_context: g2 = regs->u_regs[UREG_G2]; if (!from_user) { fixup = search_extables_range(regs->pc, &g2); - if (fixup > 10) { /* Values below are reserved for other things */ + /* Values below 10 are reserved for other things */ + if (fixup > 10) { extern const unsigned __memset_start[]; extern const unsigned __memset_end[]; extern const unsigned __csum_partial_copy_start[]; extern const unsigned __csum_partial_copy_end[]; #ifdef DEBUG_EXCEPTIONS - printk("Exception: PC<%08lx> faddr<%08lx>\n", regs->pc, address); + printk("Exception: PC<%08lx> faddr<%08lx>\n", + regs->pc, address); printk("EX_TABLE: insn<%08lx> fixup<%08x> g2<%08lx>\n", regs->pc, fixup, g2); #endif @@ -364,7 +332,7 @@ no_context: regs->pc < (unsigned long)__memset_end) || (regs->pc >= (unsigned long)__csum_partial_copy_start && regs->pc < (unsigned long)__csum_partial_copy_end)) { - regs->u_regs[UREG_I4] = address; + regs->u_regs[UREG_I4] = address; regs->u_regs[UREG_I5] = regs->pc; } regs->u_regs[UREG_G2] = g2; @@ -373,8 +341,8 @@ no_context: return; } } - - unhandled_fault (address, tsk, regs); + + unhandled_fault(address, tsk, regs); do_exit(SIGKILL); /* @@ -420,97 +388,12 @@ vmalloc_fault: if (pmd_present(*pmd) || !pmd_present(*pmd_k)) goto bad_area_nosemaphore; + *pmd = *pmd_k; return; } } -asmlinkage void do_sun4c_fault(struct pt_regs *regs, int text_fault, int write, - unsigned long address) -{ - extern void sun4c_update_mmu_cache(struct vm_area_struct *, - unsigned long,pte_t *); - extern pte_t *sun4c_pte_offset_kernel(pmd_t *,unsigned long); - struct task_struct *tsk = current; - struct mm_struct *mm = tsk->mm; - pgd_t *pgdp; - pte_t *ptep; - - if (text_fault) { - address = regs->pc; - } else if (!write && - !(regs->psr & PSR_PS)) { - unsigned int insn, __user *ip; - - ip = (unsigned int __user *)regs->pc; - if (!get_user(insn, ip)) { - if ((insn & 0xc1680000) == 0xc0680000) - write = 1; - } - } - - if (!mm) { - /* We are oopsing. */ - do_sparc_fault(regs, text_fault, write, address); - BUG(); /* P3 Oops already, you bitch */ - } - - pgdp = pgd_offset(mm, address); - ptep = sun4c_pte_offset_kernel((pmd_t *) pgdp, address); - - if (pgd_val(*pgdp)) { - if (write) { - if ((pte_val(*ptep) & (_SUN4C_PAGE_WRITE|_SUN4C_PAGE_PRESENT)) - == (_SUN4C_PAGE_WRITE|_SUN4C_PAGE_PRESENT)) { - unsigned long flags; - - *ptep = __pte(pte_val(*ptep) | _SUN4C_PAGE_ACCESSED | - _SUN4C_PAGE_MODIFIED | - _SUN4C_PAGE_VALID | - _SUN4C_PAGE_DIRTY); - - local_irq_save(flags); - if (sun4c_get_segmap(address) != invalid_segment) { - sun4c_put_pte(address, pte_val(*ptep)); - local_irq_restore(flags); - return; - } - local_irq_restore(flags); - } - } else { - if ((pte_val(*ptep) & (_SUN4C_PAGE_READ|_SUN4C_PAGE_PRESENT)) - == (_SUN4C_PAGE_READ|_SUN4C_PAGE_PRESENT)) { - unsigned long flags; - - *ptep = __pte(pte_val(*ptep) | _SUN4C_PAGE_ACCESSED | - _SUN4C_PAGE_VALID); - - local_irq_save(flags); - if (sun4c_get_segmap(address) != invalid_segment) { - sun4c_put_pte(address, pte_val(*ptep)); - local_irq_restore(flags); - return; - } - local_irq_restore(flags); - } - } - } - - /* This conditional is 'interesting'. */ - if (pgd_val(*pgdp) && !(write && !(pte_val(*ptep) & _SUN4C_PAGE_WRITE)) - && (pte_val(*ptep) & _SUN4C_PAGE_VALID)) - /* Note: It is safe to not grab the MMAP semaphore here because - * we know that update_mmu_cache() will not sleep for - * any reason (at least not in the current implementation) - * and therefore there is no danger of another thread getting - * on the CPU and doing a shrink_mmap() on this vma. - */ - sun4c_update_mmu_cache (find_vma(current->mm, address), address, - ptep); - else - do_sparc_fault(regs, text_fault, write, address); -} - /* This always deals with user addresses. */ static void force_user_fault(unsigned long address, int write) { @@ -523,21 +406,21 @@ static void force_user_fault(unsigned long address, int write) down_read(&mm->mmap_sem); vma = find_vma(mm, address); - if(!vma) + if (!vma) goto bad_area; - if(vma->vm_start <= address) + if (vma->vm_start <= address) goto good_area; - if(!(vma->vm_flags & VM_GROWSDOWN)) + if (!(vma->vm_flags & VM_GROWSDOWN)) goto bad_area; - if(expand_stack(vma, address)) + if (expand_stack(vma, address)) goto bad_area; good_area: code = SEGV_ACCERR; - if(write) { - if(!(vma->vm_flags & VM_WRITE)) + if (write) { + if (!(vma->vm_flags & VM_WRITE)) goto bad_area; } else { - if(!(vma->vm_flags & (VM_READ | VM_EXEC))) + if (!(vma->vm_flags & (VM_READ | VM_EXEC))) goto bad_area; } switch (handle_mm_fault(mm, vma, address, write ? FAULT_FLAG_WRITE : 0)) { @@ -568,7 +451,7 @@ void window_overflow_fault(void) unsigned long sp; sp = current_thread_info()->rwbuf_stkptrs[0]; - if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK)) + if (((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK)) force_user_fault(sp + 0x38, 1); force_user_fault(sp, 1); @@ -577,7 +460,7 @@ void window_overflow_fault(void) void window_underflow_fault(unsigned long sp) { - if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK)) + if (((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK)) force_user_fault(sp + 0x38, 0); force_user_fault(sp, 0); @@ -589,7 +472,7 @@ void window_ret_fault(struct pt_regs *regs) unsigned long sp; sp = regs->u_regs[UREG_FP]; - if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK)) + if (((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK)) force_user_fault(sp + 0x38, 0); force_user_fault(sp, 0); diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c index c5f9021b1a0..ef5c779ec85 100644 --- a/arch/sparc/mm/init_32.c +++ b/arch/sparc/mm/init_32.c @@ -27,7 +27,6 @@ #include <linux/gfp.h> #include <asm/sections.h> -#include <asm/vac-ops.h> #include <asm/page.h> #include <asm/pgtable.h> #include <asm/vaddrs.h> @@ -45,9 +44,6 @@ EXPORT_SYMBOL(phys_base); unsigned long pfn_base; EXPORT_SYMBOL(pfn_base); -unsigned long page_kernel; -EXPORT_SYMBOL(page_kernel); - struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS+1]; unsigned long sparc_unmapped_base; @@ -287,44 +283,16 @@ unsigned long __init bootmem_init(unsigned long *pages_avail) } /* - * check_pgt_cache - * - * This is called at the end of unmapping of VMA (zap_page_range), - * to rescan the page cache for architecture specific things, - * presumably something like sun4/sun4c PMEGs. Most architectures - * define check_pgt_cache empty. - * - * We simply copy the 2.4 implementation for now. - */ -static int pgt_cache_water[2] = { 25, 50 }; - -void check_pgt_cache(void) -{ - do_check_pgt_cache(pgt_cache_water[0], pgt_cache_water[1]); -} - -/* * paging_init() sets up the page tables: We call the MMU specific * init routine based upon the Sun model type on the Sparc. * */ -extern void sun4c_paging_init(void); extern void srmmu_paging_init(void); extern void device_scan(void); -pgprot_t PAGE_SHARED __read_mostly; -EXPORT_SYMBOL(PAGE_SHARED); - void __init paging_init(void) { switch(sparc_cpu_model) { - case sun4c: - case sun4e: - case sun4: - sun4c_paging_init(); - sparc_unmapped_base = 0xe0000000; - BTFIXUPSET_SETHI(sparc_unmapped_base, 0xe0000000); - break; case sparc_leon: leon_init(); /* fall through */ @@ -332,7 +300,6 @@ void __init paging_init(void) case sun4d: srmmu_paging_init(); sparc_unmapped_base = 0x50000000; - BTFIXUPSET_SETHI(sparc_unmapped_base, 0x50000000); break; default: prom_printf("paging_init: Cannot init paging on this Sparc\n"); @@ -341,24 +308,6 @@ void __init paging_init(void) prom_halt(); } - /* Initialize the protection map with non-constant, MMU dependent values. */ - protection_map[0] = PAGE_NONE; - protection_map[1] = PAGE_READONLY; - protection_map[2] = PAGE_COPY; - protection_map[3] = PAGE_COPY; - protection_map[4] = PAGE_READONLY; - protection_map[5] = PAGE_READONLY; - protection_map[6] = PAGE_COPY; - protection_map[7] = PAGE_COPY; - protection_map[8] = PAGE_NONE; - protection_map[9] = PAGE_READONLY; - protection_map[10] = PAGE_SHARED; - protection_map[11] = PAGE_SHARED; - protection_map[12] = PAGE_READONLY; - protection_map[13] = PAGE_READONLY; - protection_map[14] = PAGE_SHARED; - protection_map[15] = PAGE_SHARED; - btfixup(); prom_build_devicetree(); of_fill_in_cpu_data(); device_scan(); diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 21faaeea85d..6026fdd1b2e 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -741,7 +741,6 @@ static void __init find_ramdisk(unsigned long phys_base) struct node_mem_mask { unsigned long mask; unsigned long val; - unsigned long bootmem_paddr; }; static struct node_mem_mask node_masks[MAX_NUMNODES]; static int num_node_masks; @@ -806,12 +805,6 @@ static u64 memblock_nid_range(u64 start, u64 end, int *nid) return start; } -#else -static u64 memblock_nid_range(u64 start, u64 end, int *nid) -{ - *nid = 0; - return end; -} #endif /* This must be invoked after performing all of the necessary @@ -820,10 +813,11 @@ static u64 memblock_nid_range(u64 start, u64 end, int *nid) */ static void __init allocate_node_data(int nid) { - unsigned long paddr, num_pages, start_pfn, end_pfn; struct pglist_data *p; - + unsigned long start_pfn, end_pfn; #ifdef CONFIG_NEED_MULTIPLE_NODES + unsigned long paddr; + paddr = memblock_alloc_try_nid(sizeof(struct pglist_data), SMP_CACHE_BYTES, nid); if (!paddr) { prom_printf("Cannot allocate pglist_data for nid[%d]\n", nid); @@ -832,7 +826,7 @@ static void __init allocate_node_data(int nid) NODE_DATA(nid) = __va(paddr); memset(NODE_DATA(nid), 0, sizeof(struct pglist_data)); - NODE_DATA(nid)->bdata = &bootmem_node_data[nid]; + NODE_DATA(nid)->node_id = nid; #endif p = NODE_DATA(nid); @@ -840,18 +834,6 @@ static void __init allocate_node_data(int nid) get_pfn_range_for_nid(nid, &start_pfn, &end_pfn); p->node_start_pfn = start_pfn; p->node_spanned_pages = end_pfn - start_pfn; - - if (p->node_spanned_pages) { - num_pages = bootmem_bootmap_pages(p->node_spanned_pages); - - paddr = memblock_alloc_try_nid(num_pages << PAGE_SHIFT, PAGE_SIZE, nid); - if (!paddr) { - prom_printf("Cannot allocate bootmap for nid[%d]\n", - nid); - prom_halt(); - } - node_masks[nid].bootmem_paddr = paddr; - } } static void init_node_masks_nonnuma(void) @@ -1292,75 +1274,9 @@ static void __init bootmem_init_nonnuma(void) node_set_online(0); } -static void __init reserve_range_in_node(int nid, unsigned long start, - unsigned long end) -{ - numadbg(" reserve_range_in_node(nid[%d],start[%lx],end[%lx]\n", - nid, start, end); - while (start < end) { - unsigned long this_end; - int n; - - this_end = memblock_nid_range(start, end, &n); - if (n == nid) { - numadbg(" MATCH reserving range [%lx:%lx]\n", - start, this_end); - reserve_bootmem_node(NODE_DATA(nid), start, - (this_end - start), BOOTMEM_DEFAULT); - } else - numadbg(" NO MATCH, advancing start to %lx\n", - this_end); - - start = this_end; - } -} - -static void __init trim_reserved_in_node(int nid) -{ - struct memblock_region *reg; - - numadbg(" trim_reserved_in_node(%d)\n", nid); - - for_each_memblock(reserved, reg) - reserve_range_in_node(nid, reg->base, reg->base + reg->size); -} - -static void __init bootmem_init_one_node(int nid) -{ - struct pglist_data *p; - - numadbg("bootmem_init_one_node(%d)\n", nid); - - p = NODE_DATA(nid); - - if (p->node_spanned_pages) { - unsigned long paddr = node_masks[nid].bootmem_paddr; - unsigned long end_pfn; - - end_pfn = p->node_start_pfn + p->node_spanned_pages; - - numadbg(" init_bootmem_node(%d, %lx, %lx, %lx)\n", - nid, paddr >> PAGE_SHIFT, p->node_start_pfn, end_pfn); - - init_bootmem_node(p, paddr >> PAGE_SHIFT, - p->node_start_pfn, end_pfn); - - numadbg(" free_bootmem_with_active_regions(%d, %lx)\n", - nid, end_pfn); - free_bootmem_with_active_regions(nid, end_pfn); - - trim_reserved_in_node(nid); - - numadbg(" sparse_memory_present_with_active_regions(%d)\n", - nid); - sparse_memory_present_with_active_regions(nid); - } -} - static unsigned long __init bootmem_init(unsigned long phys_base) { unsigned long end_pfn; - int nid; end_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT; max_pfn = max_low_pfn = end_pfn; @@ -1369,11 +1285,12 @@ static unsigned long __init bootmem_init(unsigned long phys_base) if (bootmem_init_numa() < 0) bootmem_init_nonnuma(); - /* XXX cpu notifier XXX */ + /* Dump memblock with node info. */ + memblock_dump_all(); - for_each_online_node(nid) - bootmem_init_one_node(nid); + /* XXX cpu notifier XXX */ + sparse_memory_present_with_active_regions(MAX_NUMNODES); sparse_init(); return end_pfn; @@ -1701,6 +1618,7 @@ void __init paging_init(void) { unsigned long end_pfn, shift, phys_base; unsigned long real_end, i; + int node; /* These build time checkes make sure that the dcache_dirty_cpu() * page->flags usage will work. @@ -1826,22 +1744,24 @@ void __init paging_init(void) #endif } + /* Setup bootmem... */ + last_valid_pfn = end_pfn = bootmem_init(phys_base); + /* Once the OF device tree and MDESC have been setup, we know * the list of possible cpus. Therefore we can allocate the * IRQ stacks. */ for_each_possible_cpu(i) { - /* XXX Use node local allocations... XXX */ - softirq_stack[i] = __va(memblock_alloc(THREAD_SIZE, THREAD_SIZE)); - hardirq_stack[i] = __va(memblock_alloc(THREAD_SIZE, THREAD_SIZE)); - } + node = cpu_to_node(i); - /* Setup bootmem... */ - last_valid_pfn = end_pfn = bootmem_init(phys_base); + softirq_stack[i] = __alloc_bootmem_node(NODE_DATA(node), + THREAD_SIZE, + THREAD_SIZE, 0); + hardirq_stack[i] = __alloc_bootmem_node(NODE_DATA(node), + THREAD_SIZE, + THREAD_SIZE, 0); + } -#ifndef CONFIG_NEED_MULTIPLE_NODES - max_mapnr = last_valid_pfn; -#endif kernel_physical_mapping_init(); { @@ -1973,6 +1893,7 @@ void __init mem_init(void) free_all_bootmem_node(NODE_DATA(i)); } } + totalram_pages += free_low_memory_core_early(MAX_NUMNODES); } #else totalram_pages = free_all_bootmem(); diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c index fc58c3e917d..eb99862e965 100644 --- a/arch/sparc/mm/io-unit.c +++ b/arch/sparc/mm/io-unit.c @@ -197,7 +197,7 @@ static void iounit_release_scsi_sgl(struct device *dev, struct scatterlist *sg, } #ifdef CONFIG_SBUS -static int iounit_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned long va, __u32 addr, int len) +static int iounit_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned long va, unsigned long addr, int len) { struct iounit_struct *iounit = dev->archdata.iommu; unsigned long page, end; @@ -242,29 +242,18 @@ static void iounit_unmap_dma_area(struct device *dev, unsigned long addr, int le } #endif -static char *iounit_lockarea(char *vaddr, unsigned long len) -{ -/* FIXME: Write this */ - return vaddr; -} - -static void iounit_unlockarea(char *vaddr, unsigned long len) -{ -/* FIXME: Write this */ -} +static const struct sparc32_dma_ops iounit_dma_ops = { + .get_scsi_one = iounit_get_scsi_one, + .get_scsi_sgl = iounit_get_scsi_sgl, + .release_scsi_one = iounit_release_scsi_one, + .release_scsi_sgl = iounit_release_scsi_sgl, +#ifdef CONFIG_SBUS + .map_dma_area = iounit_map_dma_area, + .unmap_dma_area = iounit_unmap_dma_area, +#endif +}; void __init ld_mmu_iounit(void) { - BTFIXUPSET_CALL(mmu_lockarea, iounit_lockarea, BTFIXUPCALL_RETO0); - BTFIXUPSET_CALL(mmu_unlockarea, iounit_unlockarea, BTFIXUPCALL_NOP); - - BTFIXUPSET_CALL(mmu_get_scsi_one, iounit_get_scsi_one, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_get_scsi_sgl, iounit_get_scsi_sgl, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_release_scsi_one, iounit_release_scsi_one, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_release_scsi_sgl, iounit_release_scsi_sgl, BTFIXUPCALL_NORM); - -#ifdef CONFIG_SBUS - BTFIXUPSET_CALL(mmu_map_dma_area, iounit_map_dma_area, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_unmap_dma_area, iounit_unmap_dma_area, BTFIXUPCALL_NORM); -#endif + sparc32_dma_ops = &iounit_dma_ops; } diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c index 07fc6a65d9b..a8a58cad9d2 100644 --- a/arch/sparc/mm/iommu.c +++ b/arch/sparc/mm/iommu.c @@ -39,8 +39,6 @@ /* srmmu.c */ extern int viking_mxcc_present; -BTFIXUPDEF_CALL(void, flush_page_for_dma, unsigned long) -#define flush_page_for_dma(page) BTFIXUP_CALL(flush_page_for_dma)(page) extern int flush_page_for_dma_global; static int viking_flush; /* viking.S */ @@ -143,7 +141,6 @@ static int __init iommu_init(void) subsys_initcall(iommu_init); -/* This begs to be btfixup-ed by srmmu. */ /* Flush the iotlb entries to ram. */ /* This could be better if we didn't have to flush whole pages. */ static void iommu_flush_iotlb(iopte_t *iopte, unsigned int niopte) @@ -216,11 +213,6 @@ static u32 iommu_get_scsi_one(struct device *dev, char *vaddr, unsigned int len) return busa + off; } -static __u32 iommu_get_scsi_one_noflush(struct device *dev, char *vaddr, unsigned long len) -{ - return iommu_get_scsi_one(dev, vaddr, len); -} - static __u32 iommu_get_scsi_one_gflush(struct device *dev, char *vaddr, unsigned long len) { flush_page_for_dma(0); @@ -238,19 +230,6 @@ static __u32 iommu_get_scsi_one_pflush(struct device *dev, char *vaddr, unsigned return iommu_get_scsi_one(dev, vaddr, len); } -static void iommu_get_scsi_sgl_noflush(struct device *dev, struct scatterlist *sg, int sz) -{ - int n; - - while (sz != 0) { - --sz; - n = (sg->length + sg->offset + PAGE_SIZE-1) >> PAGE_SHIFT; - sg->dma_address = iommu_get_one(dev, sg_page(sg), n) + sg->offset; - sg->dma_length = sg->length; - sg = sg_next(sg); - } -} - static void iommu_get_scsi_sgl_gflush(struct device *dev, struct scatterlist *sg, int sz) { int n; @@ -426,40 +405,36 @@ static void iommu_unmap_dma_area(struct device *dev, unsigned long busa, int len } #endif -static char *iommu_lockarea(char *vaddr, unsigned long len) -{ - return vaddr; -} +static const struct sparc32_dma_ops iommu_dma_gflush_ops = { + .get_scsi_one = iommu_get_scsi_one_gflush, + .get_scsi_sgl = iommu_get_scsi_sgl_gflush, + .release_scsi_one = iommu_release_scsi_one, + .release_scsi_sgl = iommu_release_scsi_sgl, +#ifdef CONFIG_SBUS + .map_dma_area = iommu_map_dma_area, + .unmap_dma_area = iommu_unmap_dma_area, +#endif +}; -static void iommu_unlockarea(char *vaddr, unsigned long len) -{ -} +static const struct sparc32_dma_ops iommu_dma_pflush_ops = { + .get_scsi_one = iommu_get_scsi_one_pflush, + .get_scsi_sgl = iommu_get_scsi_sgl_pflush, + .release_scsi_one = iommu_release_scsi_one, + .release_scsi_sgl = iommu_release_scsi_sgl, +#ifdef CONFIG_SBUS + .map_dma_area = iommu_map_dma_area, + .unmap_dma_area = iommu_unmap_dma_area, +#endif +}; void __init ld_mmu_iommu(void) { - viking_flush = (BTFIXUPVAL_CALL(flush_page_for_dma) == (unsigned long)viking_flush_page); - BTFIXUPSET_CALL(mmu_lockarea, iommu_lockarea, BTFIXUPCALL_RETO0); - BTFIXUPSET_CALL(mmu_unlockarea, iommu_unlockarea, BTFIXUPCALL_NOP); - - if (!BTFIXUPVAL_CALL(flush_page_for_dma)) { - /* IO coherent chip */ - BTFIXUPSET_CALL(mmu_get_scsi_one, iommu_get_scsi_one_noflush, BTFIXUPCALL_RETO0); - BTFIXUPSET_CALL(mmu_get_scsi_sgl, iommu_get_scsi_sgl_noflush, BTFIXUPCALL_NORM); - } else if (flush_page_for_dma_global) { + if (flush_page_for_dma_global) { /* flush_page_for_dma flushes everything, no matter of what page is it */ - BTFIXUPSET_CALL(mmu_get_scsi_one, iommu_get_scsi_one_gflush, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_get_scsi_sgl, iommu_get_scsi_sgl_gflush, BTFIXUPCALL_NORM); + sparc32_dma_ops = &iommu_dma_gflush_ops; } else { - BTFIXUPSET_CALL(mmu_get_scsi_one, iommu_get_scsi_one_pflush, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_get_scsi_sgl, iommu_get_scsi_sgl_pflush, BTFIXUPCALL_NORM); + sparc32_dma_ops = &iommu_dma_pflush_ops; } - BTFIXUPSET_CALL(mmu_release_scsi_one, iommu_release_scsi_one, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_release_scsi_sgl, iommu_release_scsi_sgl, BTFIXUPCALL_NORM); - -#ifdef CONFIG_SBUS - BTFIXUPSET_CALL(mmu_map_dma_area, iommu_map_dma_area, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_unmap_dma_area, iommu_unmap_dma_area, BTFIXUPCALL_NORM); -#endif if (viking_mxcc_present || srmmu_modtype == HyperSparc) { dvma_prot = __pgprot(SRMMU_CACHE | SRMMU_ET_PTE | SRMMU_PRIV); diff --git a/arch/sparc/mm/leon_mm.c b/arch/sparc/mm/leon_mm.c index 13c2169822a..4c67ae6e502 100644 --- a/arch/sparc/mm/leon_mm.c +++ b/arch/sparc/mm/leon_mm.c @@ -15,9 +15,23 @@ #include <asm/leon.h> #include <asm/tlbflush.h> +#include "srmmu.h" + int leon_flush_during_switch = 1; int srmmu_swprobe_trace; +static inline unsigned long leon_get_ctable_ptr(void) +{ + unsigned int retval; + + __asm__ __volatile__("lda [%1] %2, %0\n\t" : + "=r" (retval) : + "r" (SRMMU_CTXTBL_PTR), + "i" (ASI_LEON_MMUREGS)); + return (retval & SRMMU_CTX_PMASK) << 4; +} + + unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr) { @@ -33,10 +47,10 @@ unsigned long srmmu_swprobe(unsigned long vaddr, unsigned long *paddr) if (srmmu_swprobe_trace) printk(KERN_INFO "swprobe: trace on\n"); - ctxtbl = srmmu_get_ctable_ptr(); + ctxtbl = leon_get_ctable_ptr(); if (!(ctxtbl)) { if (srmmu_swprobe_trace) - printk(KERN_INFO "swprobe: srmmu_get_ctable_ptr returned 0=>0\n"); + printk(KERN_INFO "swprobe: leon_get_ctable_ptr returned 0=>0\n"); return 0; } if (!_pfn_valid(PFN(ctxtbl))) { @@ -258,3 +272,80 @@ void leon_switch_mm(void) if (leon_flush_during_switch) leon_flush_cache_all(); } + +static void leon_flush_cache_mm(struct mm_struct *mm) +{ + leon_flush_cache_all(); +} + +static void leon_flush_cache_page(struct vm_area_struct *vma, unsigned long page) +{ + leon_flush_pcache_all(vma, page); +} + +static void leon_flush_cache_range(struct vm_area_struct *vma, + unsigned long start, + unsigned long end) +{ + leon_flush_cache_all(); +} + +static void leon_flush_tlb_mm(struct mm_struct *mm) +{ + leon_flush_tlb_all(); +} + +static void leon_flush_tlb_page(struct vm_area_struct *vma, + unsigned long page) +{ + leon_flush_tlb_all(); +} + +static void leon_flush_tlb_range(struct vm_area_struct *vma, + unsigned long start, + unsigned long end) +{ + leon_flush_tlb_all(); +} + +static void leon_flush_page_to_ram(unsigned long page) +{ + leon_flush_cache_all(); +} + +static void leon_flush_sig_insns(struct mm_struct *mm, unsigned long page) +{ + leon_flush_cache_all(); +} + +static void leon_flush_page_for_dma(unsigned long page) +{ + leon_flush_dcache_all(); +} + +void __init poke_leonsparc(void) +{ +} + +static const struct sparc32_cachetlb_ops leon_ops = { + .cache_all = leon_flush_cache_all, + .cache_mm = leon_flush_cache_mm, + .cache_page = leon_flush_cache_page, + .cache_range = leon_flush_cache_range, + .tlb_all = leon_flush_tlb_all, + .tlb_mm = leon_flush_tlb_mm, + .tlb_page = leon_flush_tlb_page, + .tlb_range = leon_flush_tlb_range, + .page_to_ram = leon_flush_page_to_ram, + .sig_insns = leon_flush_sig_insns, + .page_for_dma = leon_flush_page_for_dma, +}; + +void __init init_leon(void) +{ + srmmu_name = "LEON"; + sparc32_cachetlb_ops = &leon_ops; + poke_srmmu = poke_leonsparc; + + leon_flush_during_switch = leon_flush_needed(); +} diff --git a/arch/sparc/mm/loadmmu.c b/arch/sparc/mm/loadmmu.c deleted file mode 100644 index c5bf2a6c385..00000000000 --- a/arch/sparc/mm/loadmmu.c +++ /dev/null @@ -1,43 +0,0 @@ -/* - * loadmmu.c: This code loads up all the mm function pointers once the - * machine type has been determined. It also sets the static - * mmu values such as PAGE_NONE, etc. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/init.h> - -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/mmu_context.h> -#include <asm/oplib.h> - -struct ctx_list *ctx_list_pool; -struct ctx_list ctx_free; -struct ctx_list ctx_used; - -extern void ld_mmu_sun4c(void); -extern void ld_mmu_srmmu(void); - -void __init load_mmu(void) -{ - switch(sparc_cpu_model) { - case sun4c: - case sun4: - ld_mmu_sun4c(); - break; - case sun4m: - case sun4d: - case sparc_leon: - ld_mmu_srmmu(); - break; - default: - prom_printf("load_mmu: %d unsupported\n", (int)sparc_cpu_model); - prom_halt(); - } - btfixup(); -} diff --git a/arch/sparc/mm/nosun4c.c b/arch/sparc/mm/nosun4c.c deleted file mode 100644 index 4e62c27147c..00000000000 --- a/arch/sparc/mm/nosun4c.c +++ /dev/null @@ -1,77 +0,0 @@ -/* - * nosun4c.c: This file is a bunch of dummies for SMP compiles, - * so that it does not need sun4c and avoid ifdefs. - * - * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/init.h> -#include <asm/pgtable.h> - -static char shouldnothappen[] __initdata = "32bit SMP kernel only supports sun4m and sun4d\n"; - -/* Dummies */ -struct sun4c_mmu_ring { - unsigned long xxx1[3]; - unsigned char xxx2[2]; - int xxx3; -}; -struct sun4c_mmu_ring sun4c_kernel_ring; -struct sun4c_mmu_ring sun4c_kfree_ring; -unsigned long sun4c_kernel_faults; -unsigned long *sun4c_memerr_reg; - -static void __init should_not_happen(void) -{ - prom_printf(shouldnothappen); - prom_halt(); -} - -unsigned long __init sun4c_paging_init(unsigned long start_mem, unsigned long end_mem) -{ - should_not_happen(); - return 0; -} - -void __init ld_mmu_sun4c(void) -{ - should_not_happen(); -} - -void sun4c_mapioaddr(unsigned long physaddr, unsigned long virt_addr, int bus_type, int rdonly) -{ -} - -void sun4c_unmapioaddr(unsigned long virt_addr) -{ -} - -void sun4c_complete_all_stores(void) -{ -} - -pte_t *sun4c_pte_offset(pmd_t * dir, unsigned long address) -{ - return NULL; -} - -pte_t *sun4c_pte_offset_kernel(pmd_t *dir, unsigned long address) -{ - return NULL; -} - -void sun4c_update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep) -{ -} - -void __init sun4c_probe_vac(void) -{ - should_not_happen(); -} - -void __init sun4c_probe_memerr_reg(void) -{ - should_not_happen(); -} diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c index cbef74e793b..8e97e0305b0 100644 --- a/arch/sparc/mm/srmmu.c +++ b/arch/sparc/mm/srmmu.c @@ -48,39 +48,37 @@ #include <asm/turbosparc.h> #include <asm/leon.h> -#include <asm/btfixup.h> +#include "srmmu.h" enum mbus_module srmmu_modtype; static unsigned int hwbug_bitmask; int vac_cache_size; int vac_line_size; +struct ctx_list *ctx_list_pool; +struct ctx_list ctx_free; +struct ctx_list ctx_used; + extern struct resource sparc_iomap; extern unsigned long last_valid_pfn; -extern unsigned long page_kernel; - static pgd_t *srmmu_swapper_pg_dir; +const struct sparc32_cachetlb_ops *sparc32_cachetlb_ops; + #ifdef CONFIG_SMP +const struct sparc32_cachetlb_ops *local_ops; + #define FLUSH_BEGIN(mm) #define FLUSH_END #else -#define FLUSH_BEGIN(mm) if((mm)->context != NO_CONTEXT) { +#define FLUSH_BEGIN(mm) if ((mm)->context != NO_CONTEXT) { #define FLUSH_END } #endif -BTFIXUPDEF_CALL(void, flush_page_for_dma, unsigned long) -#define flush_page_for_dma(page) BTFIXUP_CALL(flush_page_for_dma)(page) - int flush_page_for_dma_global = 1; -#ifdef CONFIG_SMP -BTFIXUPDEF_CALL(void, local_flush_page_for_dma, unsigned long) -#define local_flush_page_for_dma(page) BTFIXUP_CALL(local_flush_page_for_dma)(page) -#endif - char *srmmu_name; ctxd_t *srmmu_ctx_table_phys; @@ -91,28 +89,6 @@ static DEFINE_SPINLOCK(srmmu_context_spinlock); static int is_hypersparc; -/* - * In general all page table modifications should use the V8 atomic - * swap instruction. This insures the mmu and the cpu are in sync - * with respect to ref/mod bits in the page tables. - */ -static inline unsigned long srmmu_swap(unsigned long *addr, unsigned long value) -{ - __asm__ __volatile__("swap [%2], %0" : "=&r" (value) : "0" (value), "r" (addr)); - return value; -} - -static inline void srmmu_set_pte(pte_t *ptep, pte_t pteval) -{ - srmmu_swap((unsigned long *)ptep, pte_val(pteval)); -} - -/* The very generic SRMMU page table operations. */ -static inline int srmmu_device_memory(unsigned long x) -{ - return ((x & 0xF0000000) != 0); -} - static int srmmu_cache_pagetables; /* these will be initialized in srmmu_nocache_calcsize() */ @@ -129,145 +105,39 @@ void *srmmu_nocache_pool; void *srmmu_nocache_bitmap; static struct bit_map srmmu_nocache_map; -static unsigned long srmmu_pte_pfn(pte_t pte) -{ - if (srmmu_device_memory(pte_val(pte))) { - /* Just return something that will cause - * pfn_valid() to return false. This makes - * copy_one_pte() to just directly copy to - * PTE over. - */ - return ~0UL; - } - return (pte_val(pte) & SRMMU_PTE_PMASK) >> (PAGE_SHIFT-4); -} - -static struct page *srmmu_pmd_page(pmd_t pmd) -{ - - if (srmmu_device_memory(pmd_val(pmd))) - BUG(); - return pfn_to_page((pmd_val(pmd) & SRMMU_PTD_PMASK) >> (PAGE_SHIFT-4)); -} - -static inline unsigned long srmmu_pgd_page(pgd_t pgd) -{ return srmmu_device_memory(pgd_val(pgd))?~0:(unsigned long)__nocache_va((pgd_val(pgd) & SRMMU_PTD_PMASK) << 4); } - - -static inline int srmmu_pte_none(pte_t pte) -{ return !(pte_val(pte) & 0xFFFFFFF); } - -static inline int srmmu_pte_present(pte_t pte) -{ return ((pte_val(pte) & SRMMU_ET_MASK) == SRMMU_ET_PTE); } - -static inline void srmmu_pte_clear(pte_t *ptep) -{ srmmu_set_pte(ptep, __pte(0)); } - static inline int srmmu_pmd_none(pmd_t pmd) { return !(pmd_val(pmd) & 0xFFFFFFF); } -static inline int srmmu_pmd_bad(pmd_t pmd) -{ return (pmd_val(pmd) & SRMMU_ET_MASK) != SRMMU_ET_PTD; } - -static inline int srmmu_pmd_present(pmd_t pmd) -{ return ((pmd_val(pmd) & SRMMU_ET_MASK) == SRMMU_ET_PTD); } - -static inline void srmmu_pmd_clear(pmd_t *pmdp) { - int i; - for (i = 0; i < PTRS_PER_PTE/SRMMU_REAL_PTRS_PER_PTE; i++) - srmmu_set_pte((pte_t *)&pmdp->pmdv[i], __pte(0)); -} - -static inline int srmmu_pgd_none(pgd_t pgd) -{ return !(pgd_val(pgd) & 0xFFFFFFF); } - -static inline int srmmu_pgd_bad(pgd_t pgd) -{ return (pgd_val(pgd) & SRMMU_ET_MASK) != SRMMU_ET_PTD; } - -static inline int srmmu_pgd_present(pgd_t pgd) -{ return ((pgd_val(pgd) & SRMMU_ET_MASK) == SRMMU_ET_PTD); } - -static inline void srmmu_pgd_clear(pgd_t * pgdp) -{ srmmu_set_pte((pte_t *)pgdp, __pte(0)); } - -static inline pte_t srmmu_pte_wrprotect(pte_t pte) -{ return __pte(pte_val(pte) & ~SRMMU_WRITE);} - -static inline pte_t srmmu_pte_mkclean(pte_t pte) -{ return __pte(pte_val(pte) & ~SRMMU_DIRTY);} - -static inline pte_t srmmu_pte_mkold(pte_t pte) -{ return __pte(pte_val(pte) & ~SRMMU_REF);} - -static inline pte_t srmmu_pte_mkwrite(pte_t pte) -{ return __pte(pte_val(pte) | SRMMU_WRITE);} - -static inline pte_t srmmu_pte_mkdirty(pte_t pte) -{ return __pte(pte_val(pte) | SRMMU_DIRTY);} - -static inline pte_t srmmu_pte_mkyoung(pte_t pte) -{ return __pte(pte_val(pte) | SRMMU_REF);} - -/* - * Conversion functions: convert a page and protection to a page entry, - * and a page entry and page directory to the page they refer to. - */ -static pte_t srmmu_mk_pte(struct page *page, pgprot_t pgprot) -{ return __pte((page_to_pfn(page) << (PAGE_SHIFT-4)) | pgprot_val(pgprot)); } - -static pte_t srmmu_mk_pte_phys(unsigned long page, pgprot_t pgprot) -{ return __pte(((page) >> 4) | pgprot_val(pgprot)); } - -static pte_t srmmu_mk_pte_io(unsigned long page, pgprot_t pgprot, int space) -{ return __pte(((page) >> 4) | (space << 28) | pgprot_val(pgprot)); } - /* XXX should we hyper_flush_whole_icache here - Anton */ static inline void srmmu_ctxd_set(ctxd_t *ctxp, pgd_t *pgdp) -{ srmmu_set_pte((pte_t *)ctxp, (SRMMU_ET_PTD | (__nocache_pa((unsigned long) pgdp) >> 4))); } - -static inline void srmmu_pgd_set(pgd_t * pgdp, pmd_t * pmdp) -{ srmmu_set_pte((pte_t *)pgdp, (SRMMU_ET_PTD | (__nocache_pa((unsigned long) pmdp) >> 4))); } +{ set_pte((pte_t *)ctxp, (SRMMU_ET_PTD | (__nocache_pa((unsigned long) pgdp) >> 4))); } -static void srmmu_pmd_set(pmd_t *pmdp, pte_t *ptep) +void pmd_set(pmd_t *pmdp, pte_t *ptep) { unsigned long ptp; /* Physical address, shifted right by 4 */ int i; ptp = __nocache_pa((unsigned long) ptep) >> 4; for (i = 0; i < PTRS_PER_PTE/SRMMU_REAL_PTRS_PER_PTE; i++) { - srmmu_set_pte((pte_t *)&pmdp->pmdv[i], SRMMU_ET_PTD | ptp); + set_pte((pte_t *)&pmdp->pmdv[i], SRMMU_ET_PTD | ptp); ptp += (SRMMU_REAL_PTRS_PER_PTE*sizeof(pte_t) >> 4); } } -static void srmmu_pmd_populate(pmd_t *pmdp, struct page *ptep) +void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep) { unsigned long ptp; /* Physical address, shifted right by 4 */ int i; ptp = page_to_pfn(ptep) << (PAGE_SHIFT-4); /* watch for overflow */ for (i = 0; i < PTRS_PER_PTE/SRMMU_REAL_PTRS_PER_PTE; i++) { - srmmu_set_pte((pte_t *)&pmdp->pmdv[i], SRMMU_ET_PTD | ptp); + set_pte((pte_t *)&pmdp->pmdv[i], SRMMU_ET_PTD | ptp); ptp += (SRMMU_REAL_PTRS_PER_PTE*sizeof(pte_t) >> 4); } } -static inline pte_t srmmu_pte_modify(pte_t pte, pgprot_t newprot) -{ return __pte((pte_val(pte) & SRMMU_CHG_MASK) | pgprot_val(newprot)); } - -/* to find an entry in a top-level page table... */ -static inline pgd_t *srmmu_pgd_offset(struct mm_struct * mm, unsigned long address) -{ return mm->pgd + (address >> SRMMU_PGDIR_SHIFT); } - -/* Find an entry in the second-level page table.. */ -static inline pmd_t *srmmu_pmd_offset(pgd_t * dir, unsigned long address) -{ - return (pmd_t *) srmmu_pgd_page(*dir) + - ((address >> PMD_SHIFT) & (PTRS_PER_PMD - 1)); -} - /* Find an entry in the third-level page table.. */ -static inline pte_t *srmmu_pte_offset(pmd_t * dir, unsigned long address) +pte_t *pte_offset_kernel(pmd_t * dir, unsigned long address) { void *pte; @@ -276,23 +146,6 @@ static inline pte_t *srmmu_pte_offset(pmd_t * dir, unsigned long address) ((address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)); } -static unsigned long srmmu_swp_type(swp_entry_t entry) -{ - return (entry.val >> SRMMU_SWP_TYPE_SHIFT) & SRMMU_SWP_TYPE_MASK; -} - -static unsigned long srmmu_swp_offset(swp_entry_t entry) -{ - return (entry.val >> SRMMU_SWP_OFF_SHIFT) & SRMMU_SWP_OFF_MASK; -} - -static swp_entry_t srmmu_swp_entry(unsigned long type, unsigned long offset) -{ - return (swp_entry_t) { - (type & SRMMU_SWP_TYPE_MASK) << SRMMU_SWP_TYPE_SHIFT - | (offset & SRMMU_SWP_OFF_MASK) << SRMMU_SWP_OFF_SHIFT }; -} - /* * size: bytes to allocate in the nocache area. * align: bytes, number to align at. @@ -325,7 +178,7 @@ static unsigned long __srmmu_get_nocache(int size, int align) return (SRMMU_NOCACHE_VADDR + (offset << SRMMU_NOCACHE_BITMAP_SHIFT)); } -static unsigned long srmmu_get_nocache(int size, int align) +unsigned long srmmu_get_nocache(int size, int align) { unsigned long tmp; @@ -337,7 +190,7 @@ static unsigned long srmmu_get_nocache(int size, int align) return tmp; } -static void srmmu_free_nocache(unsigned long vaddr, int size) +void srmmu_free_nocache(unsigned long vaddr, int size) { int offset; @@ -429,15 +282,15 @@ static void __init srmmu_nocache_init(void) while (vaddr < srmmu_nocache_end) { pgd = pgd_offset_k(vaddr); - pmd = srmmu_pmd_offset(__nocache_fix(pgd), vaddr); - pte = srmmu_pte_offset(__nocache_fix(pmd), vaddr); + pmd = pmd_offset(__nocache_fix(pgd), vaddr); + pte = pte_offset_kernel(__nocache_fix(pmd), vaddr); pteval = ((paddr >> 4) | SRMMU_ET_PTE | SRMMU_PRIV); if (srmmu_cache_pagetables) pteval |= SRMMU_CACHE; - srmmu_set_pte(__nocache_fix(pte), __pte(pteval)); + set_pte(__nocache_fix(pte), __pte(pteval)); vaddr += PAGE_SIZE; paddr += PAGE_SIZE; @@ -447,7 +300,7 @@ static void __init srmmu_nocache_init(void) flush_tlb_all(); } -static inline pgd_t *srmmu_get_pgd_fast(void) +pgd_t *get_pgd_fast(void) { pgd_t *pgd = NULL; @@ -462,21 +315,6 @@ static inline pgd_t *srmmu_get_pgd_fast(void) return pgd; } -static void srmmu_free_pgd_fast(pgd_t *pgd) -{ - srmmu_free_nocache((unsigned long)pgd, SRMMU_PGD_TABLE_SIZE); -} - -static pmd_t *srmmu_pmd_alloc_one(struct mm_struct *mm, unsigned long address) -{ - return (pmd_t *)srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE); -} - -static void srmmu_pmd_free(pmd_t * pmd) -{ - srmmu_free_nocache((unsigned long)pmd, SRMMU_PMD_TABLE_SIZE); -} - /* * Hardware needs alignment to 256 only, but we align to whole page size * to reduce fragmentation problems due to the buddy principle. @@ -485,31 +323,19 @@ static void srmmu_pmd_free(pmd_t * pmd) * Alignments up to the page size are the same for physical and virtual * addresses of the nocache area. */ -static pte_t * -srmmu_pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) -{ - return (pte_t *)srmmu_get_nocache(PTE_SIZE, PTE_SIZE); -} - -static pgtable_t -srmmu_pte_alloc_one(struct mm_struct *mm, unsigned long address) +pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address) { unsigned long pte; struct page *page; - if ((pte = (unsigned long)srmmu_pte_alloc_one_kernel(mm, address)) == 0) + if ((pte = (unsigned long)pte_alloc_one_kernel(mm, address)) == 0) return NULL; page = pfn_to_page( __nocache_pa(pte) >> PAGE_SHIFT ); pgtable_page_ctor(page); return page; } -static void srmmu_free_pte_fast(pte_t *pte) -{ - srmmu_free_nocache((unsigned long)pte, PTE_SIZE); -} - -static void srmmu_pte_free(pgtable_t pte) +void pte_free(struct mm_struct *mm, pgtable_t pte) { unsigned long p; @@ -560,8 +386,8 @@ static inline void free_context(int context) } -static void srmmu_switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, - struct task_struct *tsk, int cpu) +void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, + struct task_struct *tsk) { if(mm->context == NO_CONTEXT) { spin_lock(&srmmu_context_spinlock); @@ -590,8 +416,8 @@ static inline void srmmu_mapioaddr(unsigned long physaddr, physaddr &= PAGE_MASK; pgdp = pgd_offset_k(virt_addr); - pmdp = srmmu_pmd_offset(pgdp, virt_addr); - ptep = srmmu_pte_offset(pmdp, virt_addr); + pmdp = pmd_offset(pgdp, virt_addr); + ptep = pte_offset_kernel(pmdp, virt_addr); tmp = (physaddr >> 4) | SRMMU_ET_PTE; /* @@ -602,11 +428,11 @@ static inline void srmmu_mapioaddr(unsigned long physaddr, tmp |= (bus_type << 28); tmp |= SRMMU_PRIV; __flush_page_to_ram(virt_addr); - srmmu_set_pte(ptep, __pte(tmp)); + set_pte(ptep, __pte(tmp)); } -static void srmmu_mapiorange(unsigned int bus, unsigned long xpa, - unsigned long xva, unsigned int len) +void srmmu_mapiorange(unsigned int bus, unsigned long xpa, + unsigned long xva, unsigned int len) { while (len != 0) { len -= PAGE_SIZE; @@ -624,14 +450,14 @@ static inline void srmmu_unmapioaddr(unsigned long virt_addr) pte_t *ptep; pgdp = pgd_offset_k(virt_addr); - pmdp = srmmu_pmd_offset(pgdp, virt_addr); - ptep = srmmu_pte_offset(pmdp, virt_addr); + pmdp = pmd_offset(pgdp, virt_addr); + ptep = pte_offset_kernel(pmdp, virt_addr); /* No need to flush uncacheable page. */ - srmmu_pte_clear(ptep); + __pte_clear(ptep); } -static void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len) +void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len) { while (len != 0) { len -= PAGE_SIZE; @@ -647,10 +473,9 @@ static void srmmu_unmapiorange(unsigned long virt_addr, unsigned int len) * pool. As a side effect we are putting a little too much pressure * on the gfp() subsystem. This setup also makes the logic of the * iommu mapping code a lot easier as we can transparently handle - * mappings on the kernel stack without any special code as we did - * need on the sun4c. + * mappings on the kernel stack without any special code. */ -static struct thread_info *srmmu_alloc_thread_info_node(int node) +struct thread_info *alloc_thread_info_node(struct task_struct *tsk, int node) { struct thread_info *ret; @@ -664,7 +489,7 @@ static struct thread_info *srmmu_alloc_thread_info_node(int node) return ret; } -static void srmmu_free_thread_info(struct thread_info *ti) +void free_thread_info(struct thread_info *ti) { free_pages((unsigned long)ti, THREAD_INFO_ORDER); } @@ -683,38 +508,6 @@ extern void tsunami_flush_tlb_range(struct vm_area_struct *vma, unsigned long st extern void tsunami_flush_tlb_page(struct vm_area_struct *vma, unsigned long page); extern void tsunami_setup_blockops(void); -/* - * Workaround, until we find what's going on with Swift. When low on memory, - * it sometimes loops in fault/handle_mm_fault incl. flush_tlb_page to find - * out it is already in page tables/ fault again on the same instruction. - * I really don't understand it, have checked it and contexts - * are right, flush_tlb_all is done as well, and it faults again... - * Strange. -jj - * - * The following code is a deadwood that may be necessary when - * we start to make precise page flushes again. --zaitcev - */ -static void swift_update_mmu_cache(struct vm_area_struct * vma, unsigned long address, pte_t *ptep) -{ -#if 0 - static unsigned long last; - unsigned int val; - /* unsigned int n; */ - - if (address == last) { - val = srmmu_hwprobe(address); - if (val != 0 && pte_val(*ptep) != val) { - printk("swift_update_mmu_cache: " - "addr %lx put %08x probed %08x from %p\n", - address, pte_val(*ptep), val, - __builtin_return_address(0)); - srmmu_flush_whole_tlb(); - } - } - last = address; -#endif -} - /* swift.S */ extern void swift_flush_cache_all(void); extern void swift_flush_cache_mm(struct mm_struct *mm); @@ -767,244 +560,6 @@ void swift_flush_tlb_page(struct vm_area_struct *vma, unsigned long page) * with respect to cache coherency. */ -/* Cypress flushes. */ -static void cypress_flush_cache_all(void) -{ - volatile unsigned long cypress_sucks; - unsigned long faddr, tagval; - - flush_user_windows(); - for(faddr = 0; faddr < 0x10000; faddr += 0x20) { - __asm__ __volatile__("lda [%1 + %2] %3, %0\n\t" : - "=r" (tagval) : - "r" (faddr), "r" (0x40000), - "i" (ASI_M_DATAC_TAG)); - - /* If modified and valid, kick it. */ - if((tagval & 0x60) == 0x60) - cypress_sucks = *(unsigned long *)(0xf0020000 + faddr); - } -} - -static void cypress_flush_cache_mm(struct mm_struct *mm) -{ - register unsigned long a, b, c, d, e, f, g; - unsigned long flags, faddr; - int octx; - - FLUSH_BEGIN(mm) - flush_user_windows(); - local_irq_save(flags); - octx = srmmu_get_context(); - srmmu_set_context(mm->context); - a = 0x20; b = 0x40; c = 0x60; - d = 0x80; e = 0xa0; f = 0xc0; g = 0xe0; - - faddr = (0x10000 - 0x100); - goto inside; - do { - faddr -= 0x100; - inside: - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" - "sta %%g0, [%0 + %2] %1\n\t" - "sta %%g0, [%0 + %3] %1\n\t" - "sta %%g0, [%0 + %4] %1\n\t" - "sta %%g0, [%0 + %5] %1\n\t" - "sta %%g0, [%0 + %6] %1\n\t" - "sta %%g0, [%0 + %7] %1\n\t" - "sta %%g0, [%0 + %8] %1\n\t" : : - "r" (faddr), "i" (ASI_M_FLUSH_CTX), - "r" (a), "r" (b), "r" (c), "r" (d), - "r" (e), "r" (f), "r" (g)); - } while(faddr); - srmmu_set_context(octx); - local_irq_restore(flags); - FLUSH_END -} - -static void cypress_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) -{ - struct mm_struct *mm = vma->vm_mm; - register unsigned long a, b, c, d, e, f, g; - unsigned long flags, faddr; - int octx; - - FLUSH_BEGIN(mm) - flush_user_windows(); - local_irq_save(flags); - octx = srmmu_get_context(); - srmmu_set_context(mm->context); - a = 0x20; b = 0x40; c = 0x60; - d = 0x80; e = 0xa0; f = 0xc0; g = 0xe0; - - start &= SRMMU_REAL_PMD_MASK; - while(start < end) { - faddr = (start + (0x10000 - 0x100)); - goto inside; - do { - faddr -= 0x100; - inside: - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" - "sta %%g0, [%0 + %2] %1\n\t" - "sta %%g0, [%0 + %3] %1\n\t" - "sta %%g0, [%0 + %4] %1\n\t" - "sta %%g0, [%0 + %5] %1\n\t" - "sta %%g0, [%0 + %6] %1\n\t" - "sta %%g0, [%0 + %7] %1\n\t" - "sta %%g0, [%0 + %8] %1\n\t" : : - "r" (faddr), - "i" (ASI_M_FLUSH_SEG), - "r" (a), "r" (b), "r" (c), "r" (d), - "r" (e), "r" (f), "r" (g)); - } while (faddr != start); - start += SRMMU_REAL_PMD_SIZE; - } - srmmu_set_context(octx); - local_irq_restore(flags); - FLUSH_END -} - -static void cypress_flush_cache_page(struct vm_area_struct *vma, unsigned long page) -{ - register unsigned long a, b, c, d, e, f, g; - struct mm_struct *mm = vma->vm_mm; - unsigned long flags, line; - int octx; - - FLUSH_BEGIN(mm) - flush_user_windows(); - local_irq_save(flags); - octx = srmmu_get_context(); - srmmu_set_context(mm->context); - a = 0x20; b = 0x40; c = 0x60; - d = 0x80; e = 0xa0; f = 0xc0; g = 0xe0; - - page &= PAGE_MASK; - line = (page + PAGE_SIZE) - 0x100; - goto inside; - do { - line -= 0x100; - inside: - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" - "sta %%g0, [%0 + %2] %1\n\t" - "sta %%g0, [%0 + %3] %1\n\t" - "sta %%g0, [%0 + %4] %1\n\t" - "sta %%g0, [%0 + %5] %1\n\t" - "sta %%g0, [%0 + %6] %1\n\t" - "sta %%g0, [%0 + %7] %1\n\t" - "sta %%g0, [%0 + %8] %1\n\t" : : - "r" (line), - "i" (ASI_M_FLUSH_PAGE), - "r" (a), "r" (b), "r" (c), "r" (d), - "r" (e), "r" (f), "r" (g)); - } while(line != page); - srmmu_set_context(octx); - local_irq_restore(flags); - FLUSH_END -} - -/* Cypress is copy-back, at least that is how we configure it. */ -static void cypress_flush_page_to_ram(unsigned long page) -{ - register unsigned long a, b, c, d, e, f, g; - unsigned long line; - - a = 0x20; b = 0x40; c = 0x60; d = 0x80; e = 0xa0; f = 0xc0; g = 0xe0; - page &= PAGE_MASK; - line = (page + PAGE_SIZE) - 0x100; - goto inside; - do { - line -= 0x100; - inside: - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" - "sta %%g0, [%0 + %2] %1\n\t" - "sta %%g0, [%0 + %3] %1\n\t" - "sta %%g0, [%0 + %4] %1\n\t" - "sta %%g0, [%0 + %5] %1\n\t" - "sta %%g0, [%0 + %6] %1\n\t" - "sta %%g0, [%0 + %7] %1\n\t" - "sta %%g0, [%0 + %8] %1\n\t" : : - "r" (line), - "i" (ASI_M_FLUSH_PAGE), - "r" (a), "r" (b), "r" (c), "r" (d), - "r" (e), "r" (f), "r" (g)); - } while(line != page); -} - -/* Cypress is also IO cache coherent. */ -static void cypress_flush_page_for_dma(unsigned long page) -{ -} - -/* Cypress has unified L2 VIPT, from which both instructions and data - * are stored. It does not have an onboard icache of any sort, therefore - * no flush is necessary. - */ -static void cypress_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr) -{ -} - -static void cypress_flush_tlb_all(void) -{ - srmmu_flush_whole_tlb(); -} - -static void cypress_flush_tlb_mm(struct mm_struct *mm) -{ - FLUSH_BEGIN(mm) - __asm__ __volatile__( - "lda [%0] %3, %%g5\n\t" - "sta %2, [%0] %3\n\t" - "sta %%g0, [%1] %4\n\t" - "sta %%g5, [%0] %3\n" - : /* no outputs */ - : "r" (SRMMU_CTX_REG), "r" (0x300), "r" (mm->context), - "i" (ASI_M_MMUREGS), "i" (ASI_M_FLUSH_PROBE) - : "g5"); - FLUSH_END -} - -static void cypress_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) -{ - struct mm_struct *mm = vma->vm_mm; - unsigned long size; - - FLUSH_BEGIN(mm) - start &= SRMMU_PGDIR_MASK; - size = SRMMU_PGDIR_ALIGN(end) - start; - __asm__ __volatile__( - "lda [%0] %5, %%g5\n\t" - "sta %1, [%0] %5\n" - "1:\n\t" - "subcc %3, %4, %3\n\t" - "bne 1b\n\t" - " sta %%g0, [%2 + %3] %6\n\t" - "sta %%g5, [%0] %5\n" - : /* no outputs */ - : "r" (SRMMU_CTX_REG), "r" (mm->context), "r" (start | 0x200), - "r" (size), "r" (SRMMU_PGDIR_SIZE), "i" (ASI_M_MMUREGS), - "i" (ASI_M_FLUSH_PROBE) - : "g5", "cc"); - FLUSH_END -} - -static void cypress_flush_tlb_page(struct vm_area_struct *vma, unsigned long page) -{ - struct mm_struct *mm = vma->vm_mm; - - FLUSH_BEGIN(mm) - __asm__ __volatile__( - "lda [%0] %3, %%g5\n\t" - "sta %1, [%0] %3\n\t" - "sta %%g0, [%2] %4\n\t" - "sta %%g5, [%0] %3\n" - : /* no outputs */ - : "r" (SRMMU_CTX_REG), "r" (mm->context), "r" (page & PAGE_MASK), - "i" (ASI_M_MMUREGS), "i" (ASI_M_FLUSH_PROBE) - : "g5"); - FLUSH_END -} - /* viking.S */ extern void viking_flush_cache_all(void); extern void viking_flush_cache_mm(struct mm_struct *mm); @@ -1065,21 +620,21 @@ static void __init srmmu_early_allocate_ptable_skeleton(unsigned long start, while(start < end) { pgdp = pgd_offset_k(start); - if(srmmu_pgd_none(*(pgd_t *)__nocache_fix(pgdp))) { + if (pgd_none(*(pgd_t *)__nocache_fix(pgdp))) { pmdp = (pmd_t *) __srmmu_get_nocache( SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE); if (pmdp == NULL) early_pgtable_allocfail("pmd"); memset(__nocache_fix(pmdp), 0, SRMMU_PMD_TABLE_SIZE); - srmmu_pgd_set(__nocache_fix(pgdp), pmdp); + pgd_set(__nocache_fix(pgdp), pmdp); } - pmdp = srmmu_pmd_offset(__nocache_fix(pgdp), start); + pmdp = pmd_offset(__nocache_fix(pgdp), start); if(srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) { ptep = (pte_t *)__srmmu_get_nocache(PTE_SIZE, PTE_SIZE); if (ptep == NULL) early_pgtable_allocfail("pte"); memset(__nocache_fix(ptep), 0, PTE_SIZE); - srmmu_pmd_set(__nocache_fix(pmdp), ptep); + pmd_set(__nocache_fix(pmdp), ptep); } if (start > (0xffffffffUL - PMD_SIZE)) break; @@ -1096,21 +651,21 @@ static void __init srmmu_allocate_ptable_skeleton(unsigned long start, while(start < end) { pgdp = pgd_offset_k(start); - if(srmmu_pgd_none(*pgdp)) { + if (pgd_none(*pgdp)) { pmdp = (pmd_t *)__srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE); if (pmdp == NULL) early_pgtable_allocfail("pmd"); memset(pmdp, 0, SRMMU_PMD_TABLE_SIZE); - srmmu_pgd_set(pgdp, pmdp); + pgd_set(pgdp, pmdp); } - pmdp = srmmu_pmd_offset(pgdp, start); + pmdp = pmd_offset(pgdp, start); if(srmmu_pmd_none(*pmdp)) { ptep = (pte_t *) __srmmu_get_nocache(PTE_SIZE, PTE_SIZE); if (ptep == NULL) early_pgtable_allocfail("pte"); memset(ptep, 0, PTE_SIZE); - srmmu_pmd_set(pmdp, ptep); + pmd_set(pmdp, ptep); } if (start > (0xffffffffUL - PMD_SIZE)) break; @@ -1162,21 +717,21 @@ static void __init srmmu_inherit_prom_mappings(unsigned long start, start += SRMMU_PGDIR_SIZE; continue; } - if(srmmu_pgd_none(*(pgd_t *)__nocache_fix(pgdp))) { + if (pgd_none(*(pgd_t *)__nocache_fix(pgdp))) { pmdp = (pmd_t *)__srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE); if (pmdp == NULL) early_pgtable_allocfail("pmd"); memset(__nocache_fix(pmdp), 0, SRMMU_PMD_TABLE_SIZE); - srmmu_pgd_set(__nocache_fix(pgdp), pmdp); + pgd_set(__nocache_fix(pgdp), pmdp); } - pmdp = srmmu_pmd_offset(__nocache_fix(pgdp), start); + pmdp = pmd_offset(__nocache_fix(pgdp), start); if(srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) { ptep = (pte_t *) __srmmu_get_nocache(PTE_SIZE, PTE_SIZE); if (ptep == NULL) early_pgtable_allocfail("pte"); memset(__nocache_fix(ptep), 0, PTE_SIZE); - srmmu_pmd_set(__nocache_fix(pmdp), ptep); + pmd_set(__nocache_fix(pmdp), ptep); } if(what == 1) { /* @@ -1190,7 +745,7 @@ static void __init srmmu_inherit_prom_mappings(unsigned long start, start += SRMMU_REAL_PMD_SIZE; continue; } - ptep = srmmu_pte_offset(__nocache_fix(pmdp), start); + ptep = pte_offset_kernel(__nocache_fix(pmdp), start); *(pte_t *)__nocache_fix(ptep) = __pte(prompte); start += PAGE_SIZE; } @@ -1231,13 +786,6 @@ static unsigned long __init map_spbank(unsigned long vbase, int sp_entry) return vstart; } -static inline void memprobe_error(char *msg) -{ - prom_printf(msg); - prom_printf("Halting now...\n"); - prom_halt(); -} - static inline void map_kernel(void) { int i; @@ -1249,8 +797,6 @@ static inline void map_kernel(void) for (i = 0; sp_banks[i].num_bytes != 0; i++) { map_spbank((unsigned long)__va(sp_banks[i].base_addr), i); } - - BTFIXUPSET_SIMM13(user_ptrs_per_pgd, PAGE_OFFSET / SRMMU_PGDIR_SIZE); } /* Paging initialization on the Sparc Reference MMU. */ @@ -1312,7 +858,7 @@ void __init srmmu_paging_init(void) srmmu_set_ctable_ptr((unsigned long)srmmu_ctx_table_phys); #ifdef CONFIG_SMP /* Stop from hanging here... */ - local_flush_tlb_all(); + local_ops->tlb_all(); #else flush_tlb_all(); #endif @@ -1326,8 +872,8 @@ void __init srmmu_paging_init(void) srmmu_allocate_ptable_skeleton(PKMAP_BASE, PKMAP_END); pgd = pgd_offset_k(PKMAP_BASE); - pmd = srmmu_pmd_offset(pgd, PKMAP_BASE); - pte = srmmu_pte_offset(pmd, PKMAP_BASE); + pmd = pmd_offset(pgd, PKMAP_BASE); + pte = pte_offset_kernel(pmd, PKMAP_BASE); pkmap_page_table = pte; flush_cache_all(); @@ -1359,7 +905,7 @@ void __init srmmu_paging_init(void) } } -static void srmmu_mmu_info(struct seq_file *m) +void mmu_info(struct seq_file *m) { seq_printf(m, "MMU type\t: %s\n" @@ -1372,11 +918,7 @@ static void srmmu_mmu_info(struct seq_file *m) srmmu_nocache_map.used << SRMMU_NOCACHE_BITMAP_SHIFT); } -static void srmmu_update_mmu_cache(struct vm_area_struct * vma, unsigned long address, pte_t pte) -{ -} - -static void srmmu_destroy_context(struct mm_struct *mm) +void destroy_context(struct mm_struct *mm) { if(mm->context != NO_CONTEXT) { @@ -1474,6 +1016,20 @@ static void __cpuinit poke_hypersparc(void) clear = srmmu_get_fstatus(); } +static const struct sparc32_cachetlb_ops hypersparc_ops = { + .cache_all = hypersparc_flush_cache_all, + .cache_mm = hypersparc_flush_cache_mm, + .cache_page = hypersparc_flush_cache_page, + .cache_range = hypersparc_flush_cache_range, + .tlb_all = hypersparc_flush_tlb_all, + .tlb_mm = hypersparc_flush_tlb_mm, + .tlb_page = hypersparc_flush_tlb_page, + .tlb_range = hypersparc_flush_tlb_range, + .page_to_ram = hypersparc_flush_page_to_ram, + .sig_insns = hypersparc_flush_sig_insns, + .page_for_dma = hypersparc_flush_page_for_dma, +}; + static void __init init_hypersparc(void) { srmmu_name = "ROSS HyperSparc"; @@ -1482,118 +1038,13 @@ static void __init init_hypersparc(void) init_vac_layout(); is_hypersparc = 1; - - BTFIXUPSET_CALL(pte_clear, srmmu_pte_clear, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pmd_clear, srmmu_pmd_clear, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pgd_clear, srmmu_pgd_clear, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_all, hypersparc_flush_cache_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_mm, hypersparc_flush_cache_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_range, hypersparc_flush_cache_range, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_page, hypersparc_flush_cache_page, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(flush_tlb_all, hypersparc_flush_tlb_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_mm, hypersparc_flush_tlb_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_range, hypersparc_flush_tlb_range, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_page, hypersparc_flush_tlb_page, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(__flush_page_to_ram, hypersparc_flush_page_to_ram, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_sig_insns, hypersparc_flush_sig_insns, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_page_for_dma, hypersparc_flush_page_for_dma, BTFIXUPCALL_NOP); - + sparc32_cachetlb_ops = &hypersparc_ops; poke_srmmu = poke_hypersparc; hypersparc_setup_blockops(); } -static void __cpuinit poke_cypress(void) -{ - unsigned long mreg = srmmu_get_mmureg(); - unsigned long faddr, tagval; - volatile unsigned long cypress_sucks; - volatile unsigned long clear; - - clear = srmmu_get_faddr(); - clear = srmmu_get_fstatus(); - - if (!(mreg & CYPRESS_CENABLE)) { - for(faddr = 0x0; faddr < 0x10000; faddr += 20) { - __asm__ __volatile__("sta %%g0, [%0 + %1] %2\n\t" - "sta %%g0, [%0] %2\n\t" : : - "r" (faddr), "r" (0x40000), - "i" (ASI_M_DATAC_TAG)); - } - } else { - for(faddr = 0; faddr < 0x10000; faddr += 0x20) { - __asm__ __volatile__("lda [%1 + %2] %3, %0\n\t" : - "=r" (tagval) : - "r" (faddr), "r" (0x40000), - "i" (ASI_M_DATAC_TAG)); - - /* If modified and valid, kick it. */ - if((tagval & 0x60) == 0x60) - cypress_sucks = *(unsigned long *) - (0xf0020000 + faddr); - } - } - - /* And one more, for our good neighbor, Mr. Broken Cypress. */ - clear = srmmu_get_faddr(); - clear = srmmu_get_fstatus(); - - mreg |= (CYPRESS_CENABLE | CYPRESS_CMODE); - srmmu_set_mmureg(mreg); -} - -static void __init init_cypress_common(void) -{ - init_vac_layout(); - - BTFIXUPSET_CALL(pte_clear, srmmu_pte_clear, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pmd_clear, srmmu_pmd_clear, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pgd_clear, srmmu_pgd_clear, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_all, cypress_flush_cache_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_mm, cypress_flush_cache_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_range, cypress_flush_cache_range, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_page, cypress_flush_cache_page, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(flush_tlb_all, cypress_flush_tlb_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_mm, cypress_flush_tlb_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_page, cypress_flush_tlb_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_range, cypress_flush_tlb_range, BTFIXUPCALL_NORM); - - - BTFIXUPSET_CALL(__flush_page_to_ram, cypress_flush_page_to_ram, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_sig_insns, cypress_flush_sig_insns, BTFIXUPCALL_NOP); - BTFIXUPSET_CALL(flush_page_for_dma, cypress_flush_page_for_dma, BTFIXUPCALL_NOP); - - poke_srmmu = poke_cypress; -} - -static void __init init_cypress_604(void) -{ - srmmu_name = "ROSS Cypress-604(UP)"; - srmmu_modtype = Cypress; - init_cypress_common(); -} - -static void __init init_cypress_605(unsigned long mrev) -{ - srmmu_name = "ROSS Cypress-605(MP)"; - if(mrev == 0xe) { - srmmu_modtype = Cypress_vE; - hwbug_bitmask |= HWBUG_COPYBACK_BROKEN; - } else { - if(mrev == 0xd) { - srmmu_modtype = Cypress_vD; - hwbug_bitmask |= HWBUG_ASIFLUSH_BROKEN; - } else { - srmmu_modtype = Cypress; - } - } - init_cypress_common(); -} - static void __cpuinit poke_swift(void) { unsigned long mreg; @@ -1617,6 +1068,20 @@ static void __cpuinit poke_swift(void) srmmu_set_mmureg(mreg); } +static const struct sparc32_cachetlb_ops swift_ops = { + .cache_all = swift_flush_cache_all, + .cache_mm = swift_flush_cache_mm, + .cache_page = swift_flush_cache_page, + .cache_range = swift_flush_cache_range, + .tlb_all = swift_flush_tlb_all, + .tlb_mm = swift_flush_tlb_mm, + .tlb_page = swift_flush_tlb_page, + .tlb_range = swift_flush_tlb_range, + .page_to_ram = swift_flush_page_to_ram, + .sig_insns = swift_flush_sig_insns, + .page_for_dma = swift_flush_page_for_dma, +}; + #define SWIFT_MASKID_ADDR 0x10003018 static void __init init_swift(void) { @@ -1667,23 +1132,7 @@ static void __init init_swift(void) break; } - BTFIXUPSET_CALL(flush_cache_all, swift_flush_cache_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_mm, swift_flush_cache_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_page, swift_flush_cache_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_range, swift_flush_cache_range, BTFIXUPCALL_NORM); - - - BTFIXUPSET_CALL(flush_tlb_all, swift_flush_tlb_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_mm, swift_flush_tlb_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_page, swift_flush_tlb_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_range, swift_flush_tlb_range, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(__flush_page_to_ram, swift_flush_page_to_ram, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_sig_insns, swift_flush_sig_insns, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_page_for_dma, swift_flush_page_for_dma, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(update_mmu_cache, swift_update_mmu_cache, BTFIXUPCALL_NORM); - + sparc32_cachetlb_ops = &swift_ops; flush_page_for_dma_global = 0; /* @@ -1816,26 +1265,25 @@ static void __cpuinit poke_turbosparc(void) srmmu_set_mmureg(mreg); } +static const struct sparc32_cachetlb_ops turbosparc_ops = { + .cache_all = turbosparc_flush_cache_all, + .cache_mm = turbosparc_flush_cache_mm, + .cache_page = turbosparc_flush_cache_page, + .cache_range = turbosparc_flush_cache_range, + .tlb_all = turbosparc_flush_tlb_all, + .tlb_mm = turbosparc_flush_tlb_mm, + .tlb_page = turbosparc_flush_tlb_page, + .tlb_range = turbosparc_flush_tlb_range, + .page_to_ram = turbosparc_flush_page_to_ram, + .sig_insns = turbosparc_flush_sig_insns, + .page_for_dma = turbosparc_flush_page_for_dma, +}; + static void __init init_turbosparc(void) { srmmu_name = "Fujitsu TurboSparc"; srmmu_modtype = TurboSparc; - - BTFIXUPSET_CALL(flush_cache_all, turbosparc_flush_cache_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_mm, turbosparc_flush_cache_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_page, turbosparc_flush_cache_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_range, turbosparc_flush_cache_range, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(flush_tlb_all, turbosparc_flush_tlb_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_mm, turbosparc_flush_tlb_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_page, turbosparc_flush_tlb_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_range, turbosparc_flush_tlb_range, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(__flush_page_to_ram, turbosparc_flush_page_to_ram, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(flush_sig_insns, turbosparc_flush_sig_insns, BTFIXUPCALL_NOP); - BTFIXUPSET_CALL(flush_page_for_dma, turbosparc_flush_page_for_dma, BTFIXUPCALL_NORM); - + sparc32_cachetlb_ops = &turbosparc_ops; poke_srmmu = poke_turbosparc; } @@ -1850,6 +1298,20 @@ static void __cpuinit poke_tsunami(void) srmmu_set_mmureg(mreg); } +static const struct sparc32_cachetlb_ops tsunami_ops = { + .cache_all = tsunami_flush_cache_all, + .cache_mm = tsunami_flush_cache_mm, + .cache_page = tsunami_flush_cache_page, + .cache_range = tsunami_flush_cache_range, + .tlb_all = tsunami_flush_tlb_all, + .tlb_mm = tsunami_flush_tlb_mm, + .tlb_page = tsunami_flush_tlb_page, + .tlb_range = tsunami_flush_tlb_range, + .page_to_ram = tsunami_flush_page_to_ram, + .sig_insns = tsunami_flush_sig_insns, + .page_for_dma = tsunami_flush_page_for_dma, +}; + static void __init init_tsunami(void) { /* @@ -1860,22 +1322,7 @@ static void __init init_tsunami(void) srmmu_name = "TI Tsunami"; srmmu_modtype = Tsunami; - - BTFIXUPSET_CALL(flush_cache_all, tsunami_flush_cache_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_mm, tsunami_flush_cache_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_page, tsunami_flush_cache_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_range, tsunami_flush_cache_range, BTFIXUPCALL_NORM); - - - BTFIXUPSET_CALL(flush_tlb_all, tsunami_flush_tlb_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_mm, tsunami_flush_tlb_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_page, tsunami_flush_tlb_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_range, tsunami_flush_tlb_range, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(__flush_page_to_ram, tsunami_flush_page_to_ram, BTFIXUPCALL_NOP); - BTFIXUPSET_CALL(flush_sig_insns, tsunami_flush_sig_insns, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_page_for_dma, tsunami_flush_page_for_dma, BTFIXUPCALL_NORM); - + sparc32_cachetlb_ops = &tsunami_ops; poke_srmmu = poke_tsunami; tsunami_setup_blockops(); @@ -1886,7 +1333,7 @@ static void __cpuinit poke_viking(void) unsigned long mreg = srmmu_get_mmureg(); static int smp_catch; - if(viking_mxcc_present) { + if (viking_mxcc_present) { unsigned long mxcc_control = mxcc_get_creg(); mxcc_control |= (MXCC_CTL_ECE | MXCC_CTL_PRE | MXCC_CTL_MCE); @@ -1923,6 +1370,52 @@ static void __cpuinit poke_viking(void) srmmu_set_mmureg(mreg); } +static struct sparc32_cachetlb_ops viking_ops = { + .cache_all = viking_flush_cache_all, + .cache_mm = viking_flush_cache_mm, + .cache_page = viking_flush_cache_page, + .cache_range = viking_flush_cache_range, + .tlb_all = viking_flush_tlb_all, + .tlb_mm = viking_flush_tlb_mm, + .tlb_page = viking_flush_tlb_page, + .tlb_range = viking_flush_tlb_range, + .page_to_ram = viking_flush_page_to_ram, + .sig_insns = viking_flush_sig_insns, + .page_for_dma = viking_flush_page_for_dma, +}; + +#ifdef CONFIG_SMP +/* On sun4d the cpu broadcasts local TLB flushes, so we can just + * perform the local TLB flush and all the other cpus will see it. + * But, unfortunately, there is a bug in the sun4d XBUS backplane + * that requires that we add some synchronization to these flushes. + * + * The bug is that the fifo which keeps track of all the pending TLB + * broadcasts in the system is an entry or two too small, so if we + * have too many going at once we'll overflow that fifo and lose a TLB + * flush resulting in corruption. + * + * Our workaround is to take a global spinlock around the TLB flushes, + * which guarentees we won't ever have too many pending. It's a big + * hammer, but a semaphore like system to make sure we only have N TLB + * flushes going at once will require SMP locking anyways so there's + * no real value in trying any harder than this. + */ +static struct sparc32_cachetlb_ops viking_sun4d_smp_ops = { + .cache_all = viking_flush_cache_all, + .cache_mm = viking_flush_cache_mm, + .cache_page = viking_flush_cache_page, + .cache_range = viking_flush_cache_range, + .tlb_all = sun4dsmp_flush_tlb_all, + .tlb_mm = sun4dsmp_flush_tlb_mm, + .tlb_page = sun4dsmp_flush_tlb_page, + .tlb_range = sun4dsmp_flush_tlb_range, + .page_to_ram = viking_flush_page_to_ram, + .sig_insns = viking_flush_sig_insns, + .page_for_dma = viking_flush_page_for_dma, +}; +#endif + static void __init init_viking(void) { unsigned long mreg = srmmu_get_mmureg(); @@ -1933,10 +1426,6 @@ static void __init init_viking(void) viking_mxcc_present = 0; msi_set_sync(); - BTFIXUPSET_CALL(pte_clear, srmmu_pte_clear, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pmd_clear, srmmu_pmd_clear, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pgd_clear, srmmu_pgd_clear, BTFIXUPCALL_NORM); - /* * We need this to make sure old viking takes no hits * on it's cache for dma snoops to workaround the @@ -1944,84 +1433,28 @@ static void __init init_viking(void) * This is only necessary because of the new way in * which we use the IOMMU. */ - BTFIXUPSET_CALL(flush_page_for_dma, viking_flush_page, BTFIXUPCALL_NORM); - + viking_ops.page_for_dma = viking_flush_page; +#ifdef CONFIG_SMP + viking_sun4d_smp_ops.page_for_dma = viking_flush_page; +#endif flush_page_for_dma_global = 0; } else { srmmu_name = "TI Viking/MXCC"; viking_mxcc_present = 1; - srmmu_cache_pagetables = 1; - - /* MXCC vikings lack the DMA snooping bug. */ - BTFIXUPSET_CALL(flush_page_for_dma, viking_flush_page_for_dma, BTFIXUPCALL_NOP); } - BTFIXUPSET_CALL(flush_cache_all, viking_flush_cache_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_mm, viking_flush_cache_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_page, viking_flush_cache_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_range, viking_flush_cache_range, BTFIXUPCALL_NORM); - + sparc32_cachetlb_ops = (const struct sparc32_cachetlb_ops *) + &viking_ops; #ifdef CONFIG_SMP - if (sparc_cpu_model == sun4d) { - BTFIXUPSET_CALL(flush_tlb_all, sun4dsmp_flush_tlb_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_mm, sun4dsmp_flush_tlb_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_page, sun4dsmp_flush_tlb_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_range, sun4dsmp_flush_tlb_range, BTFIXUPCALL_NORM); - } else + if (sparc_cpu_model == sun4d) + sparc32_cachetlb_ops = (const struct sparc32_cachetlb_ops *) + &viking_sun4d_smp_ops; #endif - { - BTFIXUPSET_CALL(flush_tlb_all, viking_flush_tlb_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_mm, viking_flush_tlb_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_page, viking_flush_tlb_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_range, viking_flush_tlb_range, BTFIXUPCALL_NORM); - } - - BTFIXUPSET_CALL(__flush_page_to_ram, viking_flush_page_to_ram, BTFIXUPCALL_NOP); - BTFIXUPSET_CALL(flush_sig_insns, viking_flush_sig_insns, BTFIXUPCALL_NOP); poke_srmmu = poke_viking; } -#ifdef CONFIG_SPARC_LEON - -void __init poke_leonsparc(void) -{ -} - -void __init init_leon(void) -{ - - srmmu_name = "LEON"; - - BTFIXUPSET_CALL(flush_cache_all, leon_flush_cache_all, - BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_mm, leon_flush_cache_all, - BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_page, leon_flush_pcache_all, - BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_range, leon_flush_cache_all, - BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_page_for_dma, leon_flush_dcache_all, - BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(flush_tlb_all, leon_flush_tlb_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_mm, leon_flush_tlb_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_page, leon_flush_tlb_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_range, leon_flush_tlb_all, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(__flush_page_to_ram, leon_flush_cache_all, - BTFIXUPCALL_NOP); - BTFIXUPSET_CALL(flush_sig_insns, leon_flush_cache_all, BTFIXUPCALL_NOP); - - poke_srmmu = poke_leonsparc; - - srmmu_cache_pagetables = 0; - - leon_flush_during_switch = leon_flush_needed(); -} -#endif - /* Probe for the srmmu chip version. */ static void __init get_srmmu_type(void) { @@ -2052,22 +1485,15 @@ static void __init get_srmmu_type(void) break; case 0: case 2: - /* Uniprocessor Cypress */ - init_cypress_604(); - break; case 10: case 11: case 12: - /* _REALLY OLD_ Cypress MP chips... */ case 13: case 14: case 15: - /* MP Cypress mmu/cache-controller */ - init_cypress_605(mod_rev); - break; default: - /* Some other Cypress revision, assume a 605. */ - init_cypress_605(mod_rev); + prom_printf("Sparc-Linux Cypress support does not longer exit.\n"); + prom_halt(); break; } return; @@ -2123,203 +1549,193 @@ static void __init get_srmmu_type(void) srmmu_is_bad(); } -/* don't laugh, static pagetables */ -static void srmmu_check_pgt_cache(int low, int high) +#ifdef CONFIG_SMP +/* Local cross-calls. */ +static void smp_flush_page_for_dma(unsigned long page) { + xc1((smpfunc_t) local_ops->page_for_dma, page); + local_ops->page_for_dma(page); } -extern unsigned long spwin_mmu_patchme, fwin_mmu_patchme, - tsetup_mmu_patchme, rtrap_mmu_patchme; - -extern unsigned long spwin_srmmu_stackchk, srmmu_fwin_stackchk, - tsetup_srmmu_stackchk, srmmu_rett_stackchk; - -extern unsigned long srmmu_fault; - -#define PATCH_BRANCH(insn, dest) do { \ - iaddr = &(insn); \ - daddr = &(dest); \ - *iaddr = SPARC_BRANCH((unsigned long) daddr, (unsigned long) iaddr); \ - } while(0) - -static void __init patch_window_trap_handlers(void) +static void smp_flush_cache_all(void) { - unsigned long *iaddr, *daddr; - - PATCH_BRANCH(spwin_mmu_patchme, spwin_srmmu_stackchk); - PATCH_BRANCH(fwin_mmu_patchme, srmmu_fwin_stackchk); - PATCH_BRANCH(tsetup_mmu_patchme, tsetup_srmmu_stackchk); - PATCH_BRANCH(rtrap_mmu_patchme, srmmu_rett_stackchk); - PATCH_BRANCH(sparc_ttable[SP_TRAP_TFLT].inst_three, srmmu_fault); - PATCH_BRANCH(sparc_ttable[SP_TRAP_DFLT].inst_three, srmmu_fault); - PATCH_BRANCH(sparc_ttable[SP_TRAP_DACC].inst_three, srmmu_fault); + xc0((smpfunc_t) local_ops->cache_all); + local_ops->cache_all(); } -#ifdef CONFIG_SMP -/* Local cross-calls. */ -static void smp_flush_page_for_dma(unsigned long page) +static void smp_flush_tlb_all(void) { - xc1((smpfunc_t) BTFIXUP_CALL(local_flush_page_for_dma), page); - local_flush_page_for_dma(page); + xc0((smpfunc_t) local_ops->tlb_all); + local_ops->tlb_all(); } -#endif - -static pte_t srmmu_pgoff_to_pte(unsigned long pgoff) +static void smp_flush_cache_mm(struct mm_struct *mm) { - return __pte((pgoff << SRMMU_PTE_FILE_SHIFT) | SRMMU_FILE); + if (mm->context != NO_CONTEXT) { + cpumask_t cpu_mask; + cpumask_copy(&cpu_mask, mm_cpumask(mm)); + cpumask_clear_cpu(smp_processor_id(), &cpu_mask); + if (!cpumask_empty(&cpu_mask)) + xc1((smpfunc_t) local_ops->cache_mm, (unsigned long) mm); + local_ops->cache_mm(mm); + } } -static unsigned long srmmu_pte_to_pgoff(pte_t pte) +static void smp_flush_tlb_mm(struct mm_struct *mm) { - return pte_val(pte) >> SRMMU_PTE_FILE_SHIFT; + if (mm->context != NO_CONTEXT) { + cpumask_t cpu_mask; + cpumask_copy(&cpu_mask, mm_cpumask(mm)); + cpumask_clear_cpu(smp_processor_id(), &cpu_mask); + if (!cpumask_empty(&cpu_mask)) { + xc1((smpfunc_t) local_ops->tlb_mm, (unsigned long) mm); + if (atomic_read(&mm->mm_users) == 1 && current->active_mm == mm) + cpumask_copy(mm_cpumask(mm), + cpumask_of(smp_processor_id())); + } + local_ops->tlb_mm(mm); + } } -static pgprot_t srmmu_pgprot_noncached(pgprot_t prot) +static void smp_flush_cache_range(struct vm_area_struct *vma, + unsigned long start, + unsigned long end) { - prot &= ~__pgprot(SRMMU_CACHE); + struct mm_struct *mm = vma->vm_mm; - return prot; + if (mm->context != NO_CONTEXT) { + cpumask_t cpu_mask; + cpumask_copy(&cpu_mask, mm_cpumask(mm)); + cpumask_clear_cpu(smp_processor_id(), &cpu_mask); + if (!cpumask_empty(&cpu_mask)) + xc3((smpfunc_t) local_ops->cache_range, + (unsigned long) vma, start, end); + local_ops->cache_range(vma, start, end); + } } -/* Load up routines and constants for sun4m and sun4d mmu */ -void __init ld_mmu_srmmu(void) +static void smp_flush_tlb_range(struct vm_area_struct *vma, + unsigned long start, + unsigned long end) { - extern void ld_mmu_iommu(void); - extern void ld_mmu_iounit(void); - extern void ___xchg32_sun4md(void); - - BTFIXUPSET_SIMM13(pgdir_shift, SRMMU_PGDIR_SHIFT); - BTFIXUPSET_SETHI(pgdir_size, SRMMU_PGDIR_SIZE); - BTFIXUPSET_SETHI(pgdir_mask, SRMMU_PGDIR_MASK); - - BTFIXUPSET_SIMM13(ptrs_per_pmd, SRMMU_PTRS_PER_PMD); - BTFIXUPSET_SIMM13(ptrs_per_pgd, SRMMU_PTRS_PER_PGD); - - BTFIXUPSET_INT(page_none, pgprot_val(SRMMU_PAGE_NONE)); - PAGE_SHARED = pgprot_val(SRMMU_PAGE_SHARED); - BTFIXUPSET_INT(page_copy, pgprot_val(SRMMU_PAGE_COPY)); - BTFIXUPSET_INT(page_readonly, pgprot_val(SRMMU_PAGE_RDONLY)); - BTFIXUPSET_INT(page_kernel, pgprot_val(SRMMU_PAGE_KERNEL)); - page_kernel = pgprot_val(SRMMU_PAGE_KERNEL); - - /* Functions */ - BTFIXUPSET_CALL(pgprot_noncached, srmmu_pgprot_noncached, BTFIXUPCALL_NORM); -#ifndef CONFIG_SMP - BTFIXUPSET_CALL(___xchg32, ___xchg32_sun4md, BTFIXUPCALL_SWAPG1G2); -#endif - BTFIXUPSET_CALL(do_check_pgt_cache, srmmu_check_pgt_cache, BTFIXUPCALL_NOP); - - BTFIXUPSET_CALL(set_pte, srmmu_set_pte, BTFIXUPCALL_SWAPO0O1); - BTFIXUPSET_CALL(switch_mm, srmmu_switch_mm, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(pte_pfn, srmmu_pte_pfn, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pmd_page, srmmu_pmd_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pgd_page_vaddr, srmmu_pgd_page, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(pte_present, srmmu_pte_present, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pte_clear, srmmu_pte_clear, BTFIXUPCALL_SWAPO0G0); - - BTFIXUPSET_CALL(pmd_bad, srmmu_pmd_bad, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pmd_present, srmmu_pmd_present, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pmd_clear, srmmu_pmd_clear, BTFIXUPCALL_SWAPO0G0); + struct mm_struct *mm = vma->vm_mm; - BTFIXUPSET_CALL(pgd_none, srmmu_pgd_none, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pgd_bad, srmmu_pgd_bad, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pgd_present, srmmu_pgd_present, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pgd_clear, srmmu_pgd_clear, BTFIXUPCALL_SWAPO0G0); + if (mm->context != NO_CONTEXT) { + cpumask_t cpu_mask; + cpumask_copy(&cpu_mask, mm_cpumask(mm)); + cpumask_clear_cpu(smp_processor_id(), &cpu_mask); + if (!cpumask_empty(&cpu_mask)) + xc3((smpfunc_t) local_ops->tlb_range, + (unsigned long) vma, start, end); + local_ops->tlb_range(vma, start, end); + } +} - BTFIXUPSET_CALL(mk_pte, srmmu_mk_pte, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mk_pte_phys, srmmu_mk_pte_phys, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mk_pte_io, srmmu_mk_pte_io, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pgd_set, srmmu_pgd_set, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pmd_set, srmmu_pmd_set, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pmd_populate, srmmu_pmd_populate, BTFIXUPCALL_NORM); - - BTFIXUPSET_INT(pte_modify_mask, SRMMU_CHG_MASK); - BTFIXUPSET_CALL(pmd_offset, srmmu_pmd_offset, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pte_offset_kernel, srmmu_pte_offset, BTFIXUPCALL_NORM); +static void smp_flush_cache_page(struct vm_area_struct *vma, unsigned long page) +{ + struct mm_struct *mm = vma->vm_mm; - BTFIXUPSET_CALL(free_pte_fast, srmmu_free_pte_fast, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pte_free, srmmu_pte_free, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pte_alloc_one_kernel, srmmu_pte_alloc_one_kernel, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pte_alloc_one, srmmu_pte_alloc_one, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(free_pmd_fast, srmmu_pmd_free, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pmd_alloc_one, srmmu_pmd_alloc_one, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(free_pgd_fast, srmmu_free_pgd_fast, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(get_pgd_fast, srmmu_get_pgd_fast, BTFIXUPCALL_NORM); + if (mm->context != NO_CONTEXT) { + cpumask_t cpu_mask; + cpumask_copy(&cpu_mask, mm_cpumask(mm)); + cpumask_clear_cpu(smp_processor_id(), &cpu_mask); + if (!cpumask_empty(&cpu_mask)) + xc2((smpfunc_t) local_ops->cache_page, + (unsigned long) vma, page); + local_ops->cache_page(vma, page); + } +} - BTFIXUPSET_HALF(pte_writei, SRMMU_WRITE); - BTFIXUPSET_HALF(pte_dirtyi, SRMMU_DIRTY); - BTFIXUPSET_HALF(pte_youngi, SRMMU_REF); - BTFIXUPSET_HALF(pte_filei, SRMMU_FILE); - BTFIXUPSET_HALF(pte_wrprotecti, SRMMU_WRITE); - BTFIXUPSET_HALF(pte_mkcleani, SRMMU_DIRTY); - BTFIXUPSET_HALF(pte_mkoldi, SRMMU_REF); - BTFIXUPSET_CALL(pte_mkwrite, srmmu_pte_mkwrite, BTFIXUPCALL_ORINT(SRMMU_WRITE)); - BTFIXUPSET_CALL(pte_mkdirty, srmmu_pte_mkdirty, BTFIXUPCALL_ORINT(SRMMU_DIRTY)); - BTFIXUPSET_CALL(pte_mkyoung, srmmu_pte_mkyoung, BTFIXUPCALL_ORINT(SRMMU_REF)); - BTFIXUPSET_CALL(update_mmu_cache, srmmu_update_mmu_cache, BTFIXUPCALL_NOP); - BTFIXUPSET_CALL(destroy_context, srmmu_destroy_context, BTFIXUPCALL_NORM); +static void smp_flush_tlb_page(struct vm_area_struct *vma, unsigned long page) +{ + struct mm_struct *mm = vma->vm_mm; - BTFIXUPSET_CALL(sparc_mapiorange, srmmu_mapiorange, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(sparc_unmapiorange, srmmu_unmapiorange, BTFIXUPCALL_NORM); + if (mm->context != NO_CONTEXT) { + cpumask_t cpu_mask; + cpumask_copy(&cpu_mask, mm_cpumask(mm)); + cpumask_clear_cpu(smp_processor_id(), &cpu_mask); + if (!cpumask_empty(&cpu_mask)) + xc2((smpfunc_t) local_ops->tlb_page, + (unsigned long) vma, page); + local_ops->tlb_page(vma, page); + } +} - BTFIXUPSET_CALL(__swp_type, srmmu_swp_type, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(__swp_offset, srmmu_swp_offset, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(__swp_entry, srmmu_swp_entry, BTFIXUPCALL_NORM); +static void smp_flush_page_to_ram(unsigned long page) +{ + /* Current theory is that those who call this are the one's + * who have just dirtied their cache with the pages contents + * in kernel space, therefore we only run this on local cpu. + * + * XXX This experiment failed, research further... -DaveM + */ +#if 1 + xc1((smpfunc_t) local_ops->page_to_ram, page); +#endif + local_ops->page_to_ram(page); +} - BTFIXUPSET_CALL(mmu_info, srmmu_mmu_info, BTFIXUPCALL_NORM); +static void smp_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr) +{ + cpumask_t cpu_mask; + cpumask_copy(&cpu_mask, mm_cpumask(mm)); + cpumask_clear_cpu(smp_processor_id(), &cpu_mask); + if (!cpumask_empty(&cpu_mask)) + xc2((smpfunc_t) local_ops->sig_insns, + (unsigned long) mm, insn_addr); + local_ops->sig_insns(mm, insn_addr); +} - BTFIXUPSET_CALL(alloc_thread_info_node, srmmu_alloc_thread_info_node, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(free_thread_info, srmmu_free_thread_info, BTFIXUPCALL_NORM); +static struct sparc32_cachetlb_ops smp_cachetlb_ops = { + .cache_all = smp_flush_cache_all, + .cache_mm = smp_flush_cache_mm, + .cache_page = smp_flush_cache_page, + .cache_range = smp_flush_cache_range, + .tlb_all = smp_flush_tlb_all, + .tlb_mm = smp_flush_tlb_mm, + .tlb_page = smp_flush_tlb_page, + .tlb_range = smp_flush_tlb_range, + .page_to_ram = smp_flush_page_to_ram, + .sig_insns = smp_flush_sig_insns, + .page_for_dma = smp_flush_page_for_dma, +}; +#endif - BTFIXUPSET_CALL(pte_to_pgoff, srmmu_pte_to_pgoff, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pgoff_to_pte, srmmu_pgoff_to_pte, BTFIXUPCALL_NORM); +/* Load up routines and constants for sun4m and sun4d mmu */ +void __init load_mmu(void) +{ + extern void ld_mmu_iommu(void); + extern void ld_mmu_iounit(void); + /* Functions */ get_srmmu_type(); - patch_window_trap_handlers(); #ifdef CONFIG_SMP /* El switcheroo... */ + local_ops = sparc32_cachetlb_ops; - BTFIXUPCOPY_CALL(local_flush_cache_all, flush_cache_all); - BTFIXUPCOPY_CALL(local_flush_cache_mm, flush_cache_mm); - BTFIXUPCOPY_CALL(local_flush_cache_range, flush_cache_range); - BTFIXUPCOPY_CALL(local_flush_cache_page, flush_cache_page); - BTFIXUPCOPY_CALL(local_flush_tlb_all, flush_tlb_all); - BTFIXUPCOPY_CALL(local_flush_tlb_mm, flush_tlb_mm); - BTFIXUPCOPY_CALL(local_flush_tlb_range, flush_tlb_range); - BTFIXUPCOPY_CALL(local_flush_tlb_page, flush_tlb_page); - BTFIXUPCOPY_CALL(local_flush_page_to_ram, __flush_page_to_ram); - BTFIXUPCOPY_CALL(local_flush_sig_insns, flush_sig_insns); - BTFIXUPCOPY_CALL(local_flush_page_for_dma, flush_page_for_dma); - - BTFIXUPSET_CALL(flush_cache_all, smp_flush_cache_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_mm, smp_flush_cache_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_range, smp_flush_cache_range, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_page, smp_flush_cache_page, BTFIXUPCALL_NORM); - if (sparc_cpu_model != sun4d && - sparc_cpu_model != sparc_leon) { - BTFIXUPSET_CALL(flush_tlb_all, smp_flush_tlb_all, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_mm, smp_flush_tlb_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_range, smp_flush_tlb_range, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_page, smp_flush_tlb_page, BTFIXUPCALL_NORM); + if (sparc_cpu_model == sun4d || sparc_cpu_model == sparc_leon) { + smp_cachetlb_ops.tlb_all = local_ops->tlb_all; + smp_cachetlb_ops.tlb_mm = local_ops->tlb_mm; + smp_cachetlb_ops.tlb_range = local_ops->tlb_range; + smp_cachetlb_ops.tlb_page = local_ops->tlb_page; } - BTFIXUPSET_CALL(__flush_page_to_ram, smp_flush_page_to_ram, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_sig_insns, smp_flush_sig_insns, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_page_for_dma, smp_flush_page_for_dma, BTFIXUPCALL_NORM); if (poke_srmmu == poke_viking) { /* Avoid unnecessary cross calls. */ - BTFIXUPCOPY_CALL(flush_cache_all, local_flush_cache_all); - BTFIXUPCOPY_CALL(flush_cache_mm, local_flush_cache_mm); - BTFIXUPCOPY_CALL(flush_cache_range, local_flush_cache_range); - BTFIXUPCOPY_CALL(flush_cache_page, local_flush_cache_page); - BTFIXUPCOPY_CALL(__flush_page_to_ram, local_flush_page_to_ram); - BTFIXUPCOPY_CALL(flush_sig_insns, local_flush_sig_insns); - BTFIXUPCOPY_CALL(flush_page_for_dma, local_flush_page_for_dma); + smp_cachetlb_ops.cache_all = local_ops->cache_all; + smp_cachetlb_ops.cache_mm = local_ops->cache_mm; + smp_cachetlb_ops.cache_range = local_ops->cache_range; + smp_cachetlb_ops.cache_page = local_ops->cache_page; + + smp_cachetlb_ops.page_to_ram = local_ops->page_to_ram; + smp_cachetlb_ops.sig_insns = local_ops->sig_insns; + smp_cachetlb_ops.page_for_dma = local_ops->page_for_dma; } + + /* It really is const after this point. */ + sparc32_cachetlb_ops = (const struct sparc32_cachetlb_ops *) + &smp_cachetlb_ops; #endif if (sparc_cpu_model == sun4d) diff --git a/arch/sparc/mm/srmmu.h b/arch/sparc/mm/srmmu.h new file mode 100644 index 00000000000..5703274ccf8 --- /dev/null +++ b/arch/sparc/mm/srmmu.h @@ -0,0 +1,4 @@ +/* srmmu.c */ +extern char *srmmu_name; + +extern void (*poke_srmmu)(void); diff --git a/arch/sparc/mm/sun4c.c b/arch/sparc/mm/sun4c.c deleted file mode 100644 index 1cf4f198709..00000000000 --- a/arch/sparc/mm/sun4c.c +++ /dev/null @@ -1,2166 +0,0 @@ -/* sun4c.c: Doing in software what should be done in hardware. - * - * Copyright (C) 1996 David S. Miller (davem@davemloft.net) - * Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 1996 Andrew Tridgell (Andrew.Tridgell@anu.edu.au) - * Copyright (C) 1997-2000 Anton Blanchard (anton@samba.org) - * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz) - */ - -#define NR_TASK_BUCKETS 512 - -#include <linux/kernel.h> -#include <linux/mm.h> -#include <linux/init.h> -#include <linux/slab.h> -#include <linux/bootmem.h> -#include <linux/highmem.h> -#include <linux/fs.h> -#include <linux/seq_file.h> -#include <linux/scatterlist.h> -#include <linux/bitmap.h> - -#include <asm/sections.h> -#include <asm/page.h> -#include <asm/pgalloc.h> -#include <asm/pgtable.h> -#include <asm/vaddrs.h> -#include <asm/idprom.h> -#include <asm/machines.h> -#include <asm/memreg.h> -#include <asm/processor.h> -#include <asm/auxio.h> -#include <asm/io.h> -#include <asm/oplib.h> -#include <asm/openprom.h> -#include <asm/mmu_context.h> -#include <asm/highmem.h> -#include <asm/btfixup.h> -#include <asm/cacheflush.h> -#include <asm/tlbflush.h> - -/* Because of our dynamic kernel TLB miss strategy, and how - * our DVMA mapping allocation works, you _MUST_: - * - * 1) Disable interrupts _and_ not touch any dynamic kernel - * memory while messing with kernel MMU state. By - * dynamic memory I mean any object which is not in - * the kernel image itself or a thread_union (both of - * which are locked into the MMU). - * 2) Disable interrupts while messing with user MMU state. - */ - -extern int num_segmaps, num_contexts; - -extern unsigned long page_kernel; - -/* That's it, we prom_halt() on sun4c if the cache size is something other than 65536. - * So let's save some cycles and just use that everywhere except for that bootup - * sanity check. - */ -#define SUN4C_VAC_SIZE 65536 - -#define SUN4C_KERNEL_BUCKETS 32 - -/* Flushing the cache. */ -struct sun4c_vac_props sun4c_vacinfo; -unsigned long sun4c_kernel_faults; - -/* Invalidate every sun4c cache line tag. */ -static void __init sun4c_flush_all(void) -{ - unsigned long begin, end; - - if (sun4c_vacinfo.on) - panic("SUN4C: AIEEE, trying to invalidate vac while it is on."); - - /* Clear 'valid' bit in all cache line tags */ - begin = AC_CACHETAGS; - end = (AC_CACHETAGS + SUN4C_VAC_SIZE); - while (begin < end) { - __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : - "r" (begin), "i" (ASI_CONTROL)); - begin += sun4c_vacinfo.linesize; - } -} - -static void sun4c_flush_context_hw(void) -{ - unsigned long end = SUN4C_VAC_SIZE; - - __asm__ __volatile__( - "1: addcc %0, -4096, %0\n\t" - " bne 1b\n\t" - " sta %%g0, [%0] %2" - : "=&r" (end) - : "0" (end), "i" (ASI_HWFLUSHCONTEXT) - : "cc"); -} - -/* Must be called minimally with IRQs disabled. */ -static void sun4c_flush_segment_hw(unsigned long addr) -{ - if (sun4c_get_segmap(addr) != invalid_segment) { - unsigned long vac_size = SUN4C_VAC_SIZE; - - __asm__ __volatile__( - "1: addcc %0, -4096, %0\n\t" - " bne 1b\n\t" - " sta %%g0, [%2 + %0] %3" - : "=&r" (vac_size) - : "0" (vac_size), "r" (addr), "i" (ASI_HWFLUSHSEG) - : "cc"); - } -} - -/* File local boot time fixups. */ -BTFIXUPDEF_CALL(void, sun4c_flush_page, unsigned long) -BTFIXUPDEF_CALL(void, sun4c_flush_segment, unsigned long) -BTFIXUPDEF_CALL(void, sun4c_flush_context, void) - -#define sun4c_flush_page(addr) BTFIXUP_CALL(sun4c_flush_page)(addr) -#define sun4c_flush_segment(addr) BTFIXUP_CALL(sun4c_flush_segment)(addr) -#define sun4c_flush_context() BTFIXUP_CALL(sun4c_flush_context)() - -/* Must be called minimally with interrupts disabled. */ -static void sun4c_flush_page_hw(unsigned long addr) -{ - addr &= PAGE_MASK; - if ((int)sun4c_get_pte(addr) < 0) - __asm__ __volatile__("sta %%g0, [%0] %1" - : : "r" (addr), "i" (ASI_HWFLUSHPAGE)); -} - -/* Don't inline the software version as it eats too many cache lines if expanded. */ -static void sun4c_flush_context_sw(void) -{ - unsigned long nbytes = SUN4C_VAC_SIZE; - unsigned long lsize = sun4c_vacinfo.linesize; - - __asm__ __volatile__( - "add %2, %2, %%g1\n\t" - "add %2, %%g1, %%g2\n\t" - "add %2, %%g2, %%g3\n\t" - "add %2, %%g3, %%g4\n\t" - "add %2, %%g4, %%g5\n\t" - "add %2, %%g5, %%o4\n\t" - "add %2, %%o4, %%o5\n" - "1:\n\t" - "subcc %0, %%o5, %0\n\t" - "sta %%g0, [%0] %3\n\t" - "sta %%g0, [%0 + %2] %3\n\t" - "sta %%g0, [%0 + %%g1] %3\n\t" - "sta %%g0, [%0 + %%g2] %3\n\t" - "sta %%g0, [%0 + %%g3] %3\n\t" - "sta %%g0, [%0 + %%g4] %3\n\t" - "sta %%g0, [%0 + %%g5] %3\n\t" - "bg 1b\n\t" - " sta %%g0, [%1 + %%o4] %3\n" - : "=&r" (nbytes) - : "0" (nbytes), "r" (lsize), "i" (ASI_FLUSHCTX) - : "g1", "g2", "g3", "g4", "g5", "o4", "o5", "cc"); -} - -/* Don't inline the software version as it eats too many cache lines if expanded. */ -static void sun4c_flush_segment_sw(unsigned long addr) -{ - if (sun4c_get_segmap(addr) != invalid_segment) { - unsigned long nbytes = SUN4C_VAC_SIZE; - unsigned long lsize = sun4c_vacinfo.linesize; - - __asm__ __volatile__( - "add %2, %2, %%g1\n\t" - "add %2, %%g1, %%g2\n\t" - "add %2, %%g2, %%g3\n\t" - "add %2, %%g3, %%g4\n\t" - "add %2, %%g4, %%g5\n\t" - "add %2, %%g5, %%o4\n\t" - "add %2, %%o4, %%o5\n" - "1:\n\t" - "subcc %1, %%o5, %1\n\t" - "sta %%g0, [%0] %6\n\t" - "sta %%g0, [%0 + %2] %6\n\t" - "sta %%g0, [%0 + %%g1] %6\n\t" - "sta %%g0, [%0 + %%g2] %6\n\t" - "sta %%g0, [%0 + %%g3] %6\n\t" - "sta %%g0, [%0 + %%g4] %6\n\t" - "sta %%g0, [%0 + %%g5] %6\n\t" - "sta %%g0, [%0 + %%o4] %6\n\t" - "bg 1b\n\t" - " add %0, %%o5, %0\n" - : "=&r" (addr), "=&r" (nbytes), "=&r" (lsize) - : "0" (addr), "1" (nbytes), "2" (lsize), - "i" (ASI_FLUSHSEG) - : "g1", "g2", "g3", "g4", "g5", "o4", "o5", "cc"); - } -} - -/* Don't inline the software version as it eats too many cache lines if expanded. */ -static void sun4c_flush_page_sw(unsigned long addr) -{ - addr &= PAGE_MASK; - if ((sun4c_get_pte(addr) & (_SUN4C_PAGE_NOCACHE | _SUN4C_PAGE_VALID)) == - _SUN4C_PAGE_VALID) { - unsigned long left = PAGE_SIZE; - unsigned long lsize = sun4c_vacinfo.linesize; - - __asm__ __volatile__( - "add %2, %2, %%g1\n\t" - "add %2, %%g1, %%g2\n\t" - "add %2, %%g2, %%g3\n\t" - "add %2, %%g3, %%g4\n\t" - "add %2, %%g4, %%g5\n\t" - "add %2, %%g5, %%o4\n\t" - "add %2, %%o4, %%o5\n" - "1:\n\t" - "subcc %1, %%o5, %1\n\t" - "sta %%g0, [%0] %6\n\t" - "sta %%g0, [%0 + %2] %6\n\t" - "sta %%g0, [%0 + %%g1] %6\n\t" - "sta %%g0, [%0 + %%g2] %6\n\t" - "sta %%g0, [%0 + %%g3] %6\n\t" - "sta %%g0, [%0 + %%g4] %6\n\t" - "sta %%g0, [%0 + %%g5] %6\n\t" - "sta %%g0, [%0 + %%o4] %6\n\t" - "bg 1b\n\t" - " add %0, %%o5, %0\n" - : "=&r" (addr), "=&r" (left), "=&r" (lsize) - : "0" (addr), "1" (left), "2" (lsize), - "i" (ASI_FLUSHPG) - : "g1", "g2", "g3", "g4", "g5", "o4", "o5", "cc"); - } -} - -/* The sun4c's do have an on chip store buffer. And the way you - * clear them out isn't so obvious. The only way I can think of - * to accomplish this is to read the current context register, - * store the same value there, then read an external hardware - * register. - */ -void sun4c_complete_all_stores(void) -{ - volatile int _unused; - - _unused = sun4c_get_context(); - sun4c_set_context(_unused); - _unused = get_auxio(); -} - -/* Bootup utility functions. */ -static inline void sun4c_init_clean_segmap(unsigned char pseg) -{ - unsigned long vaddr; - - sun4c_put_segmap(0, pseg); - for (vaddr = 0; vaddr < SUN4C_REAL_PGDIR_SIZE; vaddr += PAGE_SIZE) - sun4c_put_pte(vaddr, 0); - sun4c_put_segmap(0, invalid_segment); -} - -static inline void sun4c_init_clean_mmu(unsigned long kernel_end) -{ - unsigned long vaddr; - unsigned char savectx, ctx; - - savectx = sun4c_get_context(); - for (ctx = 0; ctx < num_contexts; ctx++) { - sun4c_set_context(ctx); - for (vaddr = 0; vaddr < 0x20000000; vaddr += SUN4C_REAL_PGDIR_SIZE) - sun4c_put_segmap(vaddr, invalid_segment); - for (vaddr = 0xe0000000; vaddr < KERNBASE; vaddr += SUN4C_REAL_PGDIR_SIZE) - sun4c_put_segmap(vaddr, invalid_segment); - for (vaddr = kernel_end; vaddr < KADB_DEBUGGER_BEGVM; vaddr += SUN4C_REAL_PGDIR_SIZE) - sun4c_put_segmap(vaddr, invalid_segment); - for (vaddr = LINUX_OPPROM_ENDVM; vaddr; vaddr += SUN4C_REAL_PGDIR_SIZE) - sun4c_put_segmap(vaddr, invalid_segment); - } - sun4c_set_context(savectx); -} - -void __init sun4c_probe_vac(void) -{ - sun4c_disable_vac(); - - if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS1)) || - (idprom->id_machtype == (SM_SUN4C | SM_4C_SS1PLUS))) { - /* PROM on SS1 lacks this info, to be super safe we - * hard code it here since this arch is cast in stone. - */ - sun4c_vacinfo.num_bytes = 65536; - sun4c_vacinfo.linesize = 16; - } else { - sun4c_vacinfo.num_bytes = - prom_getintdefault(prom_root_node, "vac-size", 65536); - sun4c_vacinfo.linesize = - prom_getintdefault(prom_root_node, "vac-linesize", 16); - } - sun4c_vacinfo.do_hwflushes = - prom_getintdefault(prom_root_node, "vac-hwflush", 0); - - if (sun4c_vacinfo.do_hwflushes == 0) - sun4c_vacinfo.do_hwflushes = - prom_getintdefault(prom_root_node, "vac_hwflush", 0); - - if (sun4c_vacinfo.num_bytes != 65536) { - prom_printf("WEIRD Sun4C VAC cache size, " - "tell sparclinux@vger.kernel.org"); - prom_halt(); - } - - switch (sun4c_vacinfo.linesize) { - case 16: - sun4c_vacinfo.log2lsize = 4; - break; - case 32: - sun4c_vacinfo.log2lsize = 5; - break; - default: - prom_printf("probe_vac: Didn't expect vac-linesize of %d, halting\n", - sun4c_vacinfo.linesize); - prom_halt(); - } - - sun4c_flush_all(); - sun4c_enable_vac(); -} - -/* Patch instructions for the low level kernel fault handler. */ -extern unsigned long invalid_segment_patch1, invalid_segment_patch1_ff; -extern unsigned long invalid_segment_patch2, invalid_segment_patch2_ff; -extern unsigned long invalid_segment_patch1_1ff, invalid_segment_patch2_1ff; -extern unsigned long num_context_patch1, num_context_patch1_16; -extern unsigned long num_context_patch2_16; -extern unsigned long vac_linesize_patch, vac_linesize_patch_32; -extern unsigned long vac_hwflush_patch1, vac_hwflush_patch1_on; -extern unsigned long vac_hwflush_patch2, vac_hwflush_patch2_on; - -#define PATCH_INSN(src, dst) do { \ - daddr = &(dst); \ - iaddr = &(src); \ - *daddr = *iaddr; \ - } while (0) - -static void __init patch_kernel_fault_handler(void) -{ - unsigned long *iaddr, *daddr; - - switch (num_segmaps) { - case 128: - /* Default, nothing to do. */ - break; - case 256: - PATCH_INSN(invalid_segment_patch1_ff, - invalid_segment_patch1); - PATCH_INSN(invalid_segment_patch2_ff, - invalid_segment_patch2); - break; - case 512: - PATCH_INSN(invalid_segment_patch1_1ff, - invalid_segment_patch1); - PATCH_INSN(invalid_segment_patch2_1ff, - invalid_segment_patch2); - break; - default: - prom_printf("Unhandled number of segmaps: %d\n", - num_segmaps); - prom_halt(); - } - switch (num_contexts) { - case 8: - /* Default, nothing to do. */ - break; - case 16: - PATCH_INSN(num_context_patch1_16, - num_context_patch1); - break; - default: - prom_printf("Unhandled number of contexts: %d\n", - num_contexts); - prom_halt(); - } - - if (sun4c_vacinfo.do_hwflushes != 0) { - PATCH_INSN(vac_hwflush_patch1_on, vac_hwflush_patch1); - PATCH_INSN(vac_hwflush_patch2_on, vac_hwflush_patch2); - } else { - switch (sun4c_vacinfo.linesize) { - case 16: - /* Default, nothing to do. */ - break; - case 32: - PATCH_INSN(vac_linesize_patch_32, vac_linesize_patch); - break; - default: - prom_printf("Impossible VAC linesize %d, halting...\n", - sun4c_vacinfo.linesize); - prom_halt(); - } - } -} - -static void __init sun4c_probe_mmu(void) -{ - if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS1)) || - (idprom->id_machtype == (SM_SUN4C | SM_4C_SS1PLUS))) { - /* Hardcode these just to be safe, PROM on SS1 does - * not have this info available in the root node. - */ - num_segmaps = 128; - num_contexts = 8; - } else { - num_segmaps = - prom_getintdefault(prom_root_node, "mmu-npmg", 128); - num_contexts = - prom_getintdefault(prom_root_node, "mmu-nctx", 0x8); - } - patch_kernel_fault_handler(); -} - -volatile unsigned long __iomem *sun4c_memerr_reg = NULL; - -void __init sun4c_probe_memerr_reg(void) -{ - phandle node; - struct linux_prom_registers regs[1]; - - node = prom_getchild(prom_root_node); - node = prom_searchsiblings(prom_root_node, "memory-error"); - if (!node) - return; - if (prom_getproperty(node, "reg", (char *)regs, sizeof(regs)) <= 0) - return; - /* hmm I think regs[0].which_io is zero here anyways */ - sun4c_memerr_reg = ioremap(regs[0].phys_addr, regs[0].reg_size); -} - -static inline void sun4c_init_ss2_cache_bug(void) -{ - if ((idprom->id_machtype == (SM_SUN4C | SM_4C_SS2)) || - (idprom->id_machtype == (SM_SUN4C | SM_4C_IPX)) || - (idprom->id_machtype == (SM_SUN4C | SM_4C_ELC))) { - /* Whee.. */ - printk("SS2 cache bug detected, uncaching trap table page\n"); - sun4c_flush_page((unsigned int) &_start); - sun4c_put_pte(((unsigned long) &_start), - (sun4c_get_pte((unsigned long) &_start) | _SUN4C_PAGE_NOCACHE)); - } -} - -/* Addr is always aligned on a page boundary for us already. */ -static int sun4c_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned long va, - unsigned long addr, int len) -{ - unsigned long page, end; - - *pba = addr; - - end = PAGE_ALIGN((addr + len)); - while (addr < end) { - page = va; - sun4c_flush_page(page); - page -= PAGE_OFFSET; - page >>= PAGE_SHIFT; - page |= (_SUN4C_PAGE_VALID | _SUN4C_PAGE_DIRTY | - _SUN4C_PAGE_NOCACHE | _SUN4C_PAGE_PRIV); - sun4c_put_pte(addr, page); - addr += PAGE_SIZE; - va += PAGE_SIZE; - } - - return 0; -} - -static void sun4c_unmap_dma_area(struct device *dev, unsigned long busa, int len) -{ - /* Fortunately for us, bus_addr == uncached_virt in sun4c. */ - /* XXX Implement this */ -} - -/* TLB management. */ - -/* Don't change this struct without changing entry.S. This is used - * in the in-window kernel fault handler, and you don't want to mess - * with that. (See sun4c_fault in entry.S). - */ -struct sun4c_mmu_entry { - struct sun4c_mmu_entry *next; - struct sun4c_mmu_entry *prev; - unsigned long vaddr; - unsigned char pseg; - unsigned char locked; - - /* For user mappings only, and completely hidden from kernel - * TLB miss code. - */ - unsigned char ctx; - struct sun4c_mmu_entry *lru_next; - struct sun4c_mmu_entry *lru_prev; -}; - -static struct sun4c_mmu_entry mmu_entry_pool[SUN4C_MAX_SEGMAPS]; - -static void __init sun4c_init_mmu_entry_pool(void) -{ - int i; - - for (i=0; i < SUN4C_MAX_SEGMAPS; i++) { - mmu_entry_pool[i].pseg = i; - mmu_entry_pool[i].next = NULL; - mmu_entry_pool[i].prev = NULL; - mmu_entry_pool[i].vaddr = 0; - mmu_entry_pool[i].locked = 0; - mmu_entry_pool[i].ctx = 0; - mmu_entry_pool[i].lru_next = NULL; - mmu_entry_pool[i].lru_prev = NULL; - } - mmu_entry_pool[invalid_segment].locked = 1; -} - -static inline void fix_permissions(unsigned long vaddr, unsigned long bits_on, - unsigned long bits_off) -{ - unsigned long start, end; - - end = vaddr + SUN4C_REAL_PGDIR_SIZE; - for (start = vaddr; start < end; start += PAGE_SIZE) - if (sun4c_get_pte(start) & _SUN4C_PAGE_VALID) - sun4c_put_pte(start, (sun4c_get_pte(start) | bits_on) & - ~bits_off); -} - -static inline void sun4c_init_map_kernelprom(unsigned long kernel_end) -{ - unsigned long vaddr; - unsigned char pseg, ctx; - - for (vaddr = KADB_DEBUGGER_BEGVM; - vaddr < LINUX_OPPROM_ENDVM; - vaddr += SUN4C_REAL_PGDIR_SIZE) { - pseg = sun4c_get_segmap(vaddr); - if (pseg != invalid_segment) { - mmu_entry_pool[pseg].locked = 1; - for (ctx = 0; ctx < num_contexts; ctx++) - prom_putsegment(ctx, vaddr, pseg); - fix_permissions(vaddr, _SUN4C_PAGE_PRIV, 0); - } - } - - for (vaddr = KERNBASE; vaddr < kernel_end; vaddr += SUN4C_REAL_PGDIR_SIZE) { - pseg = sun4c_get_segmap(vaddr); - mmu_entry_pool[pseg].locked = 1; - for (ctx = 0; ctx < num_contexts; ctx++) - prom_putsegment(ctx, vaddr, pseg); - fix_permissions(vaddr, _SUN4C_PAGE_PRIV, _SUN4C_PAGE_NOCACHE); - } -} - -static void __init sun4c_init_lock_area(unsigned long start, unsigned long end) -{ - int i, ctx; - - while (start < end) { - for (i = 0; i < invalid_segment; i++) - if (!mmu_entry_pool[i].locked) - break; - mmu_entry_pool[i].locked = 1; - sun4c_init_clean_segmap(i); - for (ctx = 0; ctx < num_contexts; ctx++) - prom_putsegment(ctx, start, mmu_entry_pool[i].pseg); - start += SUN4C_REAL_PGDIR_SIZE; - } -} - -/* Don't change this struct without changing entry.S. This is used - * in the in-window kernel fault handler, and you don't want to mess - * with that. (See sun4c_fault in entry.S). - */ -struct sun4c_mmu_ring { - struct sun4c_mmu_entry ringhd; - int num_entries; -}; - -static struct sun4c_mmu_ring sun4c_context_ring[SUN4C_MAX_CONTEXTS]; /* used user entries */ -static struct sun4c_mmu_ring sun4c_ufree_ring; /* free user entries */ -static struct sun4c_mmu_ring sun4c_ulru_ring; /* LRU user entries */ -struct sun4c_mmu_ring sun4c_kernel_ring; /* used kernel entries */ -struct sun4c_mmu_ring sun4c_kfree_ring; /* free kernel entries */ - -static inline void sun4c_init_rings(void) -{ - int i; - - for (i = 0; i < SUN4C_MAX_CONTEXTS; i++) { - sun4c_context_ring[i].ringhd.next = - sun4c_context_ring[i].ringhd.prev = - &sun4c_context_ring[i].ringhd; - sun4c_context_ring[i].num_entries = 0; - } - sun4c_ufree_ring.ringhd.next = sun4c_ufree_ring.ringhd.prev = - &sun4c_ufree_ring.ringhd; - sun4c_ufree_ring.num_entries = 0; - sun4c_ulru_ring.ringhd.lru_next = sun4c_ulru_ring.ringhd.lru_prev = - &sun4c_ulru_ring.ringhd; - sun4c_ulru_ring.num_entries = 0; - sun4c_kernel_ring.ringhd.next = sun4c_kernel_ring.ringhd.prev = - &sun4c_kernel_ring.ringhd; - sun4c_kernel_ring.num_entries = 0; - sun4c_kfree_ring.ringhd.next = sun4c_kfree_ring.ringhd.prev = - &sun4c_kfree_ring.ringhd; - sun4c_kfree_ring.num_entries = 0; -} - -static void add_ring(struct sun4c_mmu_ring *ring, - struct sun4c_mmu_entry *entry) -{ - struct sun4c_mmu_entry *head = &ring->ringhd; - - entry->prev = head; - (entry->next = head->next)->prev = entry; - head->next = entry; - ring->num_entries++; -} - -static inline void add_lru(struct sun4c_mmu_entry *entry) -{ - struct sun4c_mmu_ring *ring = &sun4c_ulru_ring; - struct sun4c_mmu_entry *head = &ring->ringhd; - - entry->lru_next = head; - (entry->lru_prev = head->lru_prev)->lru_next = entry; - head->lru_prev = entry; -} - -static void add_ring_ordered(struct sun4c_mmu_ring *ring, - struct sun4c_mmu_entry *entry) -{ - struct sun4c_mmu_entry *head = &ring->ringhd; - unsigned long addr = entry->vaddr; - - while ((head->next != &ring->ringhd) && (head->next->vaddr < addr)) - head = head->next; - - entry->prev = head; - (entry->next = head->next)->prev = entry; - head->next = entry; - ring->num_entries++; - - add_lru(entry); -} - -static inline void remove_ring(struct sun4c_mmu_ring *ring, - struct sun4c_mmu_entry *entry) -{ - struct sun4c_mmu_entry *next = entry->next; - - (next->prev = entry->prev)->next = next; - ring->num_entries--; -} - -static void remove_lru(struct sun4c_mmu_entry *entry) -{ - struct sun4c_mmu_entry *next = entry->lru_next; - - (next->lru_prev = entry->lru_prev)->lru_next = next; -} - -static void free_user_entry(int ctx, struct sun4c_mmu_entry *entry) -{ - remove_ring(sun4c_context_ring+ctx, entry); - remove_lru(entry); - add_ring(&sun4c_ufree_ring, entry); -} - -static void free_kernel_entry(struct sun4c_mmu_entry *entry, - struct sun4c_mmu_ring *ring) -{ - remove_ring(ring, entry); - add_ring(&sun4c_kfree_ring, entry); -} - -static void __init sun4c_init_fill_kernel_ring(int howmany) -{ - int i; - - while (howmany) { - for (i = 0; i < invalid_segment; i++) - if (!mmu_entry_pool[i].locked) - break; - mmu_entry_pool[i].locked = 1; - sun4c_init_clean_segmap(i); - add_ring(&sun4c_kfree_ring, &mmu_entry_pool[i]); - howmany--; - } -} - -static void __init sun4c_init_fill_user_ring(void) -{ - int i; - - for (i = 0; i < invalid_segment; i++) { - if (mmu_entry_pool[i].locked) - continue; - sun4c_init_clean_segmap(i); - add_ring(&sun4c_ufree_ring, &mmu_entry_pool[i]); - } -} - -static void sun4c_kernel_unmap(struct sun4c_mmu_entry *kentry) -{ - int savectx, ctx; - - savectx = sun4c_get_context(); - for (ctx = 0; ctx < num_contexts; ctx++) { - sun4c_set_context(ctx); - sun4c_put_segmap(kentry->vaddr, invalid_segment); - } - sun4c_set_context(savectx); -} - -static void sun4c_kernel_map(struct sun4c_mmu_entry *kentry) -{ - int savectx, ctx; - - savectx = sun4c_get_context(); - for (ctx = 0; ctx < num_contexts; ctx++) { - sun4c_set_context(ctx); - sun4c_put_segmap(kentry->vaddr, kentry->pseg); - } - sun4c_set_context(savectx); -} - -#define sun4c_user_unmap(__entry) \ - sun4c_put_segmap((__entry)->vaddr, invalid_segment) - -static void sun4c_demap_context(struct sun4c_mmu_ring *crp, unsigned char ctx) -{ - struct sun4c_mmu_entry *head = &crp->ringhd; - unsigned long flags; - - local_irq_save(flags); - if (head->next != head) { - struct sun4c_mmu_entry *entry = head->next; - int savectx = sun4c_get_context(); - - flush_user_windows(); - sun4c_set_context(ctx); - sun4c_flush_context(); - do { - struct sun4c_mmu_entry *next = entry->next; - - sun4c_user_unmap(entry); - free_user_entry(ctx, entry); - - entry = next; - } while (entry != head); - sun4c_set_context(savectx); - } - local_irq_restore(flags); -} - -static int sun4c_user_taken_entries; /* This is how much we have. */ -static int max_user_taken_entries; /* This limits us and prevents deadlock. */ - -static struct sun4c_mmu_entry *sun4c_kernel_strategy(void) -{ - struct sun4c_mmu_entry *this_entry; - - /* If some are free, return first one. */ - if (sun4c_kfree_ring.num_entries) { - this_entry = sun4c_kfree_ring.ringhd.next; - return this_entry; - } - - /* Else free one up. */ - this_entry = sun4c_kernel_ring.ringhd.prev; - sun4c_flush_segment(this_entry->vaddr); - sun4c_kernel_unmap(this_entry); - free_kernel_entry(this_entry, &sun4c_kernel_ring); - this_entry = sun4c_kfree_ring.ringhd.next; - - return this_entry; -} - -/* Using this method to free up mmu entries eliminates a lot of - * potential races since we have a kernel that incurs tlb - * replacement faults. There may be performance penalties. - * - * NOTE: Must be called with interrupts disabled. - */ -static struct sun4c_mmu_entry *sun4c_user_strategy(void) -{ - struct sun4c_mmu_entry *entry; - unsigned char ctx; - int savectx; - - /* If some are free, return first one. */ - if (sun4c_ufree_ring.num_entries) { - entry = sun4c_ufree_ring.ringhd.next; - goto unlink_out; - } - - if (sun4c_user_taken_entries) { - entry = sun4c_kernel_strategy(); - sun4c_user_taken_entries--; - goto kunlink_out; - } - - /* Grab from the beginning of the LRU list. */ - entry = sun4c_ulru_ring.ringhd.lru_next; - ctx = entry->ctx; - - savectx = sun4c_get_context(); - flush_user_windows(); - sun4c_set_context(ctx); - sun4c_flush_segment(entry->vaddr); - sun4c_user_unmap(entry); - remove_ring(sun4c_context_ring + ctx, entry); - remove_lru(entry); - sun4c_set_context(savectx); - - return entry; - -unlink_out: - remove_ring(&sun4c_ufree_ring, entry); - return entry; -kunlink_out: - remove_ring(&sun4c_kfree_ring, entry); - return entry; -} - -/* NOTE: Must be called with interrupts disabled. */ -void sun4c_grow_kernel_ring(void) -{ - struct sun4c_mmu_entry *entry; - - /* Prevent deadlock condition. */ - if (sun4c_user_taken_entries >= max_user_taken_entries) - return; - - if (sun4c_ufree_ring.num_entries) { - entry = sun4c_ufree_ring.ringhd.next; - remove_ring(&sun4c_ufree_ring, entry); - add_ring(&sun4c_kfree_ring, entry); - sun4c_user_taken_entries++; - } -} - -/* 2 page buckets for task struct and kernel stack allocation. - * - * TASK_STACK_BEGIN - * bucket[0] - * bucket[1] - * [ ... ] - * bucket[NR_TASK_BUCKETS-1] - * TASK_STACK_BEGIN + (sizeof(struct task_bucket) * NR_TASK_BUCKETS) - * - * Each slot looks like: - * - * page 1 -- task struct + beginning of kernel stack - * page 2 -- rest of kernel stack - */ - -union task_union *sun4c_bucket[NR_TASK_BUCKETS]; - -static int sun4c_lowbucket_avail; - -#define BUCKET_EMPTY ((union task_union *) 0) -#define BUCKET_SHIFT (PAGE_SHIFT + 1) /* log2(sizeof(struct task_bucket)) */ -#define BUCKET_SIZE (1 << BUCKET_SHIFT) -#define BUCKET_NUM(addr) ((((addr) - SUN4C_LOCK_VADDR) >> BUCKET_SHIFT)) -#define BUCKET_ADDR(num) (((num) << BUCKET_SHIFT) + SUN4C_LOCK_VADDR) -#define BUCKET_PTE(page) \ - ((((page) - PAGE_OFFSET) >> PAGE_SHIFT) | pgprot_val(SUN4C_PAGE_KERNEL)) -#define BUCKET_PTE_PAGE(pte) \ - (PAGE_OFFSET + (((pte) & SUN4C_PFN_MASK) << PAGE_SHIFT)) - -static void get_locked_segment(unsigned long addr) -{ - struct sun4c_mmu_entry *stolen; - unsigned long flags; - - local_irq_save(flags); - addr &= SUN4C_REAL_PGDIR_MASK; - stolen = sun4c_user_strategy(); - max_user_taken_entries--; - stolen->vaddr = addr; - flush_user_windows(); - sun4c_kernel_map(stolen); - local_irq_restore(flags); -} - -static void free_locked_segment(unsigned long addr) -{ - struct sun4c_mmu_entry *entry; - unsigned long flags; - unsigned char pseg; - - local_irq_save(flags); - addr &= SUN4C_REAL_PGDIR_MASK; - pseg = sun4c_get_segmap(addr); - entry = &mmu_entry_pool[pseg]; - - flush_user_windows(); - sun4c_flush_segment(addr); - sun4c_kernel_unmap(entry); - add_ring(&sun4c_ufree_ring, entry); - max_user_taken_entries++; - local_irq_restore(flags); -} - -static inline void garbage_collect(int entry) -{ - int start, end; - - /* 32 buckets per segment... */ - entry &= ~31; - start = entry; - for (end = (start + 32); start < end; start++) - if (sun4c_bucket[start] != BUCKET_EMPTY) - return; - - /* Entire segment empty, release it. */ - free_locked_segment(BUCKET_ADDR(entry)); -} - -static struct thread_info *sun4c_alloc_thread_info_node(int node) -{ - unsigned long addr, pages; - int entry; - - pages = __get_free_pages(GFP_KERNEL, THREAD_INFO_ORDER); - if (!pages) - return NULL; - - for (entry = sun4c_lowbucket_avail; entry < NR_TASK_BUCKETS; entry++) - if (sun4c_bucket[entry] == BUCKET_EMPTY) - break; - if (entry == NR_TASK_BUCKETS) { - free_pages(pages, THREAD_INFO_ORDER); - return NULL; - } - if (entry >= sun4c_lowbucket_avail) - sun4c_lowbucket_avail = entry + 1; - - addr = BUCKET_ADDR(entry); - sun4c_bucket[entry] = (union task_union *) addr; - if(sun4c_get_segmap(addr) == invalid_segment) - get_locked_segment(addr); - - /* We are changing the virtual color of the page(s) - * so we must flush the cache to guarantee consistency. - */ - sun4c_flush_page(pages); - sun4c_flush_page(pages + PAGE_SIZE); - - sun4c_put_pte(addr, BUCKET_PTE(pages)); - sun4c_put_pte(addr + PAGE_SIZE, BUCKET_PTE(pages + PAGE_SIZE)); - -#ifdef CONFIG_DEBUG_STACK_USAGE - memset((void *)addr, 0, PAGE_SIZE << THREAD_INFO_ORDER); -#endif /* DEBUG_STACK_USAGE */ - - return (struct thread_info *) addr; -} - -static void sun4c_free_thread_info(struct thread_info *ti) -{ - unsigned long tiaddr = (unsigned long) ti; - unsigned long pages = BUCKET_PTE_PAGE(sun4c_get_pte(tiaddr)); - int entry = BUCKET_NUM(tiaddr); - - /* We are deleting a mapping, so the flush here is mandatory. */ - sun4c_flush_page(tiaddr); - sun4c_flush_page(tiaddr + PAGE_SIZE); - - sun4c_put_pte(tiaddr, 0); - sun4c_put_pte(tiaddr + PAGE_SIZE, 0); - - sun4c_bucket[entry] = BUCKET_EMPTY; - if (entry < sun4c_lowbucket_avail) - sun4c_lowbucket_avail = entry; - - free_pages(pages, THREAD_INFO_ORDER); - garbage_collect(entry); -} - -static void __init sun4c_init_buckets(void) -{ - int entry; - - if (sizeof(union thread_union) != (PAGE_SIZE << THREAD_INFO_ORDER)) { - extern void thread_info_size_is_bolixed_pete(void); - thread_info_size_is_bolixed_pete(); - } - - for (entry = 0; entry < NR_TASK_BUCKETS; entry++) - sun4c_bucket[entry] = BUCKET_EMPTY; - sun4c_lowbucket_avail = 0; -} - -static unsigned long sun4c_iobuffer_start; -static unsigned long sun4c_iobuffer_end; -static unsigned long sun4c_iobuffer_high; -static unsigned long *sun4c_iobuffer_map; -static int iobuffer_map_size; - -/* - * Alias our pages so they do not cause a trap. - * Also one page may be aliased into several I/O areas and we may - * finish these I/O separately. - */ -static char *sun4c_lockarea(char *vaddr, unsigned long size) -{ - unsigned long base, scan; - unsigned long npages; - unsigned long vpage; - unsigned long pte; - unsigned long apage; - unsigned long high; - unsigned long flags; - - npages = (((unsigned long)vaddr & ~PAGE_MASK) + - size + (PAGE_SIZE-1)) >> PAGE_SHIFT; - - local_irq_save(flags); - base = bitmap_find_next_zero_area(sun4c_iobuffer_map, iobuffer_map_size, - 0, npages, 0); - if (base >= iobuffer_map_size) - goto abend; - - high = ((base + npages) << PAGE_SHIFT) + sun4c_iobuffer_start; - high = SUN4C_REAL_PGDIR_ALIGN(high); - while (high > sun4c_iobuffer_high) { - get_locked_segment(sun4c_iobuffer_high); - sun4c_iobuffer_high += SUN4C_REAL_PGDIR_SIZE; - } - - vpage = ((unsigned long) vaddr) & PAGE_MASK; - for (scan = base; scan < base+npages; scan++) { - pte = ((vpage-PAGE_OFFSET) >> PAGE_SHIFT); - pte |= pgprot_val(SUN4C_PAGE_KERNEL); - pte |= _SUN4C_PAGE_NOCACHE; - set_bit(scan, sun4c_iobuffer_map); - apage = (scan << PAGE_SHIFT) + sun4c_iobuffer_start; - - /* Flush original mapping so we see the right things later. */ - sun4c_flush_page(vpage); - - sun4c_put_pte(apage, pte); - vpage += PAGE_SIZE; - } - local_irq_restore(flags); - return (char *) ((base << PAGE_SHIFT) + sun4c_iobuffer_start + - (((unsigned long) vaddr) & ~PAGE_MASK)); - -abend: - local_irq_restore(flags); - printk("DMA vaddr=0x%p size=%08lx\n", vaddr, size); - panic("Out of iobuffer table"); - return NULL; -} - -static void sun4c_unlockarea(char *vaddr, unsigned long size) -{ - unsigned long vpage, npages; - unsigned long flags; - int scan, high; - - vpage = (unsigned long)vaddr & PAGE_MASK; - npages = (((unsigned long)vaddr & ~PAGE_MASK) + - size + (PAGE_SIZE-1)) >> PAGE_SHIFT; - - local_irq_save(flags); - while (npages != 0) { - --npages; - - /* This mapping is marked non-cachable, no flush necessary. */ - sun4c_put_pte(vpage, 0); - clear_bit((vpage - sun4c_iobuffer_start) >> PAGE_SHIFT, - sun4c_iobuffer_map); - vpage += PAGE_SIZE; - } - - /* garbage collect */ - scan = (sun4c_iobuffer_high - sun4c_iobuffer_start) >> PAGE_SHIFT; - while (scan >= 0 && !sun4c_iobuffer_map[scan >> 5]) - scan -= 32; - scan += 32; - high = sun4c_iobuffer_start + (scan << PAGE_SHIFT); - high = SUN4C_REAL_PGDIR_ALIGN(high) + SUN4C_REAL_PGDIR_SIZE; - while (high < sun4c_iobuffer_high) { - sun4c_iobuffer_high -= SUN4C_REAL_PGDIR_SIZE; - free_locked_segment(sun4c_iobuffer_high); - } - local_irq_restore(flags); -} - -/* Note the scsi code at init time passes to here buffers - * which sit on the kernel stack, those are already locked - * by implication and fool the page locking code above - * if passed to by mistake. - */ -static __u32 sun4c_get_scsi_one(struct device *dev, char *bufptr, unsigned long len) -{ - unsigned long page; - - page = ((unsigned long)bufptr) & PAGE_MASK; - if (!virt_addr_valid(page)) { - sun4c_flush_page(page); - return (__u32)bufptr; /* already locked */ - } - return (__u32)sun4c_lockarea(bufptr, len); -} - -static void sun4c_get_scsi_sgl(struct device *dev, struct scatterlist *sg, int sz) -{ - while (sz != 0) { - --sz; - sg->dma_address = (__u32)sun4c_lockarea(sg_virt(sg), sg->length); - sg->dma_length = sg->length; - sg = sg_next(sg); - } -} - -static void sun4c_release_scsi_one(struct device *dev, __u32 bufptr, unsigned long len) -{ - if (bufptr < sun4c_iobuffer_start) - return; /* On kernel stack or similar, see above */ - sun4c_unlockarea((char *)bufptr, len); -} - -static void sun4c_release_scsi_sgl(struct device *dev, struct scatterlist *sg, int sz) -{ - while (sz != 0) { - --sz; - sun4c_unlockarea((char *)sg->dma_address, sg->length); - sg = sg_next(sg); - } -} - -#define TASK_ENTRY_SIZE BUCKET_SIZE /* see above */ -#define LONG_ALIGN(x) (((x)+(sizeof(long))-1)&~((sizeof(long))-1)) - -struct vm_area_struct sun4c_kstack_vma; - -static void __init sun4c_init_lock_areas(void) -{ - unsigned long sun4c_taskstack_start; - unsigned long sun4c_taskstack_end; - int bitmap_size; - - sun4c_init_buckets(); - sun4c_taskstack_start = SUN4C_LOCK_VADDR; - sun4c_taskstack_end = (sun4c_taskstack_start + - (TASK_ENTRY_SIZE * NR_TASK_BUCKETS)); - if (sun4c_taskstack_end >= SUN4C_LOCK_END) { - prom_printf("Too many tasks, decrease NR_TASK_BUCKETS please.\n"); - prom_halt(); - } - - sun4c_iobuffer_start = sun4c_iobuffer_high = - SUN4C_REAL_PGDIR_ALIGN(sun4c_taskstack_end); - sun4c_iobuffer_end = SUN4C_LOCK_END; - bitmap_size = (sun4c_iobuffer_end - sun4c_iobuffer_start) >> PAGE_SHIFT; - bitmap_size = (bitmap_size + 7) >> 3; - bitmap_size = LONG_ALIGN(bitmap_size); - iobuffer_map_size = bitmap_size << 3; - sun4c_iobuffer_map = __alloc_bootmem(bitmap_size, SMP_CACHE_BYTES, 0UL); - memset((void *) sun4c_iobuffer_map, 0, bitmap_size); - - sun4c_kstack_vma.vm_mm = &init_mm; - sun4c_kstack_vma.vm_start = sun4c_taskstack_start; - sun4c_kstack_vma.vm_end = sun4c_taskstack_end; - sun4c_kstack_vma.vm_page_prot = PAGE_SHARED; - sun4c_kstack_vma.vm_flags = VM_READ | VM_WRITE | VM_EXEC; - insert_vm_struct(&init_mm, &sun4c_kstack_vma); -} - -/* Cache flushing on the sun4c. */ -static void sun4c_flush_cache_all(void) -{ - unsigned long begin, end; - - flush_user_windows(); - begin = (KERNBASE + SUN4C_REAL_PGDIR_SIZE); - end = (begin + SUN4C_VAC_SIZE); - - if (sun4c_vacinfo.linesize == 32) { - while (begin < end) { - __asm__ __volatile__( - "ld [%0 + 0x00], %%g0\n\t" - "ld [%0 + 0x20], %%g0\n\t" - "ld [%0 + 0x40], %%g0\n\t" - "ld [%0 + 0x60], %%g0\n\t" - "ld [%0 + 0x80], %%g0\n\t" - "ld [%0 + 0xa0], %%g0\n\t" - "ld [%0 + 0xc0], %%g0\n\t" - "ld [%0 + 0xe0], %%g0\n\t" - "ld [%0 + 0x100], %%g0\n\t" - "ld [%0 + 0x120], %%g0\n\t" - "ld [%0 + 0x140], %%g0\n\t" - "ld [%0 + 0x160], %%g0\n\t" - "ld [%0 + 0x180], %%g0\n\t" - "ld [%0 + 0x1a0], %%g0\n\t" - "ld [%0 + 0x1c0], %%g0\n\t" - "ld [%0 + 0x1e0], %%g0\n" - : : "r" (begin)); - begin += 512; - } - } else { - while (begin < end) { - __asm__ __volatile__( - "ld [%0 + 0x00], %%g0\n\t" - "ld [%0 + 0x10], %%g0\n\t" - "ld [%0 + 0x20], %%g0\n\t" - "ld [%0 + 0x30], %%g0\n\t" - "ld [%0 + 0x40], %%g0\n\t" - "ld [%0 + 0x50], %%g0\n\t" - "ld [%0 + 0x60], %%g0\n\t" - "ld [%0 + 0x70], %%g0\n\t" - "ld [%0 + 0x80], %%g0\n\t" - "ld [%0 + 0x90], %%g0\n\t" - "ld [%0 + 0xa0], %%g0\n\t" - "ld [%0 + 0xb0], %%g0\n\t" - "ld [%0 + 0xc0], %%g0\n\t" - "ld [%0 + 0xd0], %%g0\n\t" - "ld [%0 + 0xe0], %%g0\n\t" - "ld [%0 + 0xf0], %%g0\n" - : : "r" (begin)); - begin += 256; - } - } -} - -static void sun4c_flush_cache_mm(struct mm_struct *mm) -{ - int new_ctx = mm->context; - - if (new_ctx != NO_CONTEXT) { - flush_user_windows(); - - if (sun4c_context_ring[new_ctx].num_entries) { - struct sun4c_mmu_entry *head = &sun4c_context_ring[new_ctx].ringhd; - unsigned long flags; - - local_irq_save(flags); - if (head->next != head) { - struct sun4c_mmu_entry *entry = head->next; - int savectx = sun4c_get_context(); - - sun4c_set_context(new_ctx); - sun4c_flush_context(); - do { - struct sun4c_mmu_entry *next = entry->next; - - sun4c_user_unmap(entry); - free_user_entry(new_ctx, entry); - - entry = next; - } while (entry != head); - sun4c_set_context(savectx); - } - local_irq_restore(flags); - } - } -} - -static void sun4c_flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) -{ - struct mm_struct *mm = vma->vm_mm; - int new_ctx = mm->context; - - if (new_ctx != NO_CONTEXT) { - struct sun4c_mmu_entry *head = &sun4c_context_ring[new_ctx].ringhd; - struct sun4c_mmu_entry *entry; - unsigned long flags; - - flush_user_windows(); - - local_irq_save(flags); - /* All user segmap chains are ordered on entry->vaddr. */ - for (entry = head->next; - (entry != head) && ((entry->vaddr+SUN4C_REAL_PGDIR_SIZE) < start); - entry = entry->next) - ; - - /* Tracing various job mixtures showed that this conditional - * only passes ~35% of the time for most worse case situations, - * therefore we avoid all of this gross overhead ~65% of the time. - */ - if ((entry != head) && (entry->vaddr < end)) { - int octx = sun4c_get_context(); - sun4c_set_context(new_ctx); - - /* At this point, always, (start >= entry->vaddr) and - * (entry->vaddr < end), once the latter condition - * ceases to hold, or we hit the end of the list, we - * exit the loop. The ordering of all user allocated - * segmaps makes this all work out so beautifully. - */ - do { - struct sun4c_mmu_entry *next = entry->next; - unsigned long realend; - - /* "realstart" is always >= entry->vaddr */ - realend = entry->vaddr + SUN4C_REAL_PGDIR_SIZE; - if (end < realend) - realend = end; - if ((realend - entry->vaddr) <= (PAGE_SIZE << 3)) { - unsigned long page = entry->vaddr; - while (page < realend) { - sun4c_flush_page(page); - page += PAGE_SIZE; - } - } else { - sun4c_flush_segment(entry->vaddr); - sun4c_user_unmap(entry); - free_user_entry(new_ctx, entry); - } - entry = next; - } while ((entry != head) && (entry->vaddr < end)); - sun4c_set_context(octx); - } - local_irq_restore(flags); - } -} - -static void sun4c_flush_cache_page(struct vm_area_struct *vma, unsigned long page) -{ - struct mm_struct *mm = vma->vm_mm; - int new_ctx = mm->context; - - /* Sun4c has no separate I/D caches so cannot optimize for non - * text page flushes. - */ - if (new_ctx != NO_CONTEXT) { - int octx = sun4c_get_context(); - unsigned long flags; - - flush_user_windows(); - local_irq_save(flags); - sun4c_set_context(new_ctx); - sun4c_flush_page(page); - sun4c_set_context(octx); - local_irq_restore(flags); - } -} - -static void sun4c_flush_page_to_ram(unsigned long page) -{ - unsigned long flags; - - local_irq_save(flags); - sun4c_flush_page(page); - local_irq_restore(flags); -} - -/* Sun4c cache is unified, both instructions and data live there, so - * no need to flush the on-stack instructions for new signal handlers. - */ -static void sun4c_flush_sig_insns(struct mm_struct *mm, unsigned long insn_addr) -{ -} - -/* TLB flushing on the sun4c. These routines count on the cache - * flushing code to flush the user register windows so that we need - * not do so when we get here. - */ - -static void sun4c_flush_tlb_all(void) -{ - struct sun4c_mmu_entry *this_entry, *next_entry; - unsigned long flags; - int savectx, ctx; - - local_irq_save(flags); - this_entry = sun4c_kernel_ring.ringhd.next; - savectx = sun4c_get_context(); - flush_user_windows(); - while (sun4c_kernel_ring.num_entries) { - next_entry = this_entry->next; - sun4c_flush_segment(this_entry->vaddr); - for (ctx = 0; ctx < num_contexts; ctx++) { - sun4c_set_context(ctx); - sun4c_put_segmap(this_entry->vaddr, invalid_segment); - } - free_kernel_entry(this_entry, &sun4c_kernel_ring); - this_entry = next_entry; - } - sun4c_set_context(savectx); - local_irq_restore(flags); -} - -static void sun4c_flush_tlb_mm(struct mm_struct *mm) -{ - int new_ctx = mm->context; - - if (new_ctx != NO_CONTEXT) { - struct sun4c_mmu_entry *head = &sun4c_context_ring[new_ctx].ringhd; - unsigned long flags; - - local_irq_save(flags); - if (head->next != head) { - struct sun4c_mmu_entry *entry = head->next; - int savectx = sun4c_get_context(); - - sun4c_set_context(new_ctx); - sun4c_flush_context(); - do { - struct sun4c_mmu_entry *next = entry->next; - - sun4c_user_unmap(entry); - free_user_entry(new_ctx, entry); - - entry = next; - } while (entry != head); - sun4c_set_context(savectx); - } - local_irq_restore(flags); - } -} - -static void sun4c_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) -{ - struct mm_struct *mm = vma->vm_mm; - int new_ctx = mm->context; - - if (new_ctx != NO_CONTEXT) { - struct sun4c_mmu_entry *head = &sun4c_context_ring[new_ctx].ringhd; - struct sun4c_mmu_entry *entry; - unsigned long flags; - - local_irq_save(flags); - /* See commentary in sun4c_flush_cache_range(). */ - for (entry = head->next; - (entry != head) && ((entry->vaddr+SUN4C_REAL_PGDIR_SIZE) < start); - entry = entry->next) - ; - - if ((entry != head) && (entry->vaddr < end)) { - int octx = sun4c_get_context(); - - sun4c_set_context(new_ctx); - do { - struct sun4c_mmu_entry *next = entry->next; - - sun4c_flush_segment(entry->vaddr); - sun4c_user_unmap(entry); - free_user_entry(new_ctx, entry); - - entry = next; - } while ((entry != head) && (entry->vaddr < end)); - sun4c_set_context(octx); - } - local_irq_restore(flags); - } -} - -static void sun4c_flush_tlb_page(struct vm_area_struct *vma, unsigned long page) -{ - struct mm_struct *mm = vma->vm_mm; - int new_ctx = mm->context; - - if (new_ctx != NO_CONTEXT) { - int savectx = sun4c_get_context(); - unsigned long flags; - - local_irq_save(flags); - sun4c_set_context(new_ctx); - page &= PAGE_MASK; - sun4c_flush_page(page); - sun4c_put_pte(page, 0); - sun4c_set_context(savectx); - local_irq_restore(flags); - } -} - -static inline void sun4c_mapioaddr(unsigned long physaddr, unsigned long virt_addr) -{ - unsigned long page_entry, pg_iobits; - - pg_iobits = _SUN4C_PAGE_PRESENT | _SUN4C_READABLE | _SUN4C_WRITEABLE | - _SUN4C_PAGE_IO | _SUN4C_PAGE_NOCACHE; - - page_entry = ((physaddr >> PAGE_SHIFT) & SUN4C_PFN_MASK); - page_entry |= ((pg_iobits | _SUN4C_PAGE_PRIV) & ~(_SUN4C_PAGE_PRESENT)); - sun4c_put_pte(virt_addr, page_entry); -} - -static void sun4c_mapiorange(unsigned int bus, unsigned long xpa, - unsigned long xva, unsigned int len) -{ - while (len != 0) { - len -= PAGE_SIZE; - sun4c_mapioaddr(xpa, xva); - xva += PAGE_SIZE; - xpa += PAGE_SIZE; - } -} - -static void sun4c_unmapiorange(unsigned long virt_addr, unsigned int len) -{ - while (len != 0) { - len -= PAGE_SIZE; - sun4c_put_pte(virt_addr, 0); - virt_addr += PAGE_SIZE; - } -} - -static void sun4c_alloc_context(struct mm_struct *old_mm, struct mm_struct *mm) -{ - struct ctx_list *ctxp; - - ctxp = ctx_free.next; - if (ctxp != &ctx_free) { - remove_from_ctx_list(ctxp); - add_to_used_ctxlist(ctxp); - mm->context = ctxp->ctx_number; - ctxp->ctx_mm = mm; - return; - } - ctxp = ctx_used.next; - if (ctxp->ctx_mm == old_mm) - ctxp = ctxp->next; - remove_from_ctx_list(ctxp); - add_to_used_ctxlist(ctxp); - ctxp->ctx_mm->context = NO_CONTEXT; - ctxp->ctx_mm = mm; - mm->context = ctxp->ctx_number; - sun4c_demap_context(&sun4c_context_ring[ctxp->ctx_number], - ctxp->ctx_number); -} - -/* Switch the current MM context. */ -static void sun4c_switch_mm(struct mm_struct *old_mm, struct mm_struct *mm, struct task_struct *tsk, int cpu) -{ - struct ctx_list *ctx; - int dirty = 0; - - if (mm->context == NO_CONTEXT) { - dirty = 1; - sun4c_alloc_context(old_mm, mm); - } else { - /* Update the LRU ring of contexts. */ - ctx = ctx_list_pool + mm->context; - remove_from_ctx_list(ctx); - add_to_used_ctxlist(ctx); - } - if (dirty || old_mm != mm) - sun4c_set_context(mm->context); -} - -static void sun4c_destroy_context(struct mm_struct *mm) -{ - struct ctx_list *ctx_old; - - if (mm->context != NO_CONTEXT) { - sun4c_demap_context(&sun4c_context_ring[mm->context], mm->context); - ctx_old = ctx_list_pool + mm->context; - remove_from_ctx_list(ctx_old); - add_to_free_ctxlist(ctx_old); - mm->context = NO_CONTEXT; - } -} - -static void sun4c_mmu_info(struct seq_file *m) -{ - int used_user_entries, i; - - used_user_entries = 0; - for (i = 0; i < num_contexts; i++) - used_user_entries += sun4c_context_ring[i].num_entries; - - seq_printf(m, - "vacsize\t\t: %d bytes\n" - "vachwflush\t: %s\n" - "vaclinesize\t: %d bytes\n" - "mmuctxs\t\t: %d\n" - "mmupsegs\t: %d\n" - "kernelpsegs\t: %d\n" - "kfreepsegs\t: %d\n" - "usedpsegs\t: %d\n" - "ufreepsegs\t: %d\n" - "user_taken\t: %d\n" - "max_taken\t: %d\n", - sun4c_vacinfo.num_bytes, - (sun4c_vacinfo.do_hwflushes ? "yes" : "no"), - sun4c_vacinfo.linesize, - num_contexts, - (invalid_segment + 1), - sun4c_kernel_ring.num_entries, - sun4c_kfree_ring.num_entries, - used_user_entries, - sun4c_ufree_ring.num_entries, - sun4c_user_taken_entries, - max_user_taken_entries); -} - -/* Nothing below here should touch the mmu hardware nor the mmu_entry - * data structures. - */ - -/* First the functions which the mid-level code uses to directly - * manipulate the software page tables. Some defines since we are - * emulating the i386 page directory layout. - */ -#define PGD_PRESENT 0x001 -#define PGD_RW 0x002 -#define PGD_USER 0x004 -#define PGD_ACCESSED 0x020 -#define PGD_DIRTY 0x040 -#define PGD_TABLE (PGD_PRESENT | PGD_RW | PGD_USER | PGD_ACCESSED | PGD_DIRTY) - -static void sun4c_set_pte(pte_t *ptep, pte_t pte) -{ - *ptep = pte; -} - -static void sun4c_pgd_set(pgd_t * pgdp, pmd_t * pmdp) -{ -} - -static void sun4c_pmd_set(pmd_t * pmdp, pte_t * ptep) -{ - pmdp->pmdv[0] = PGD_TABLE | (unsigned long) ptep; -} - -static void sun4c_pmd_populate(pmd_t * pmdp, struct page * ptep) -{ - if (page_address(ptep) == NULL) BUG(); /* No highmem on sun4c */ - pmdp->pmdv[0] = PGD_TABLE | (unsigned long) page_address(ptep); -} - -static int sun4c_pte_present(pte_t pte) -{ - return ((pte_val(pte) & (_SUN4C_PAGE_PRESENT | _SUN4C_PAGE_PRIV)) != 0); -} -static void sun4c_pte_clear(pte_t *ptep) { *ptep = __pte(0); } - -static int sun4c_pmd_bad(pmd_t pmd) -{ - return (((pmd_val(pmd) & ~PAGE_MASK) != PGD_TABLE) || - (!virt_addr_valid(pmd_val(pmd)))); -} - -static int sun4c_pmd_present(pmd_t pmd) -{ - return ((pmd_val(pmd) & PGD_PRESENT) != 0); -} - -#if 0 /* if PMD takes one word */ -static void sun4c_pmd_clear(pmd_t *pmdp) { *pmdp = __pmd(0); } -#else /* if pmd_t is a longish aggregate */ -static void sun4c_pmd_clear(pmd_t *pmdp) { - memset((void *)pmdp, 0, sizeof(pmd_t)); -} -#endif - -static int sun4c_pgd_none(pgd_t pgd) { return 0; } -static int sun4c_pgd_bad(pgd_t pgd) { return 0; } -static int sun4c_pgd_present(pgd_t pgd) { return 1; } -static void sun4c_pgd_clear(pgd_t * pgdp) { } - -/* - * The following only work if pte_present() is true. - * Undefined behaviour if not.. - */ -static pte_t sun4c_pte_mkwrite(pte_t pte) -{ - pte = __pte(pte_val(pte) | _SUN4C_PAGE_WRITE); - if (pte_val(pte) & _SUN4C_PAGE_MODIFIED) - pte = __pte(pte_val(pte) | _SUN4C_PAGE_SILENT_WRITE); - return pte; -} - -static pte_t sun4c_pte_mkdirty(pte_t pte) -{ - pte = __pte(pte_val(pte) | _SUN4C_PAGE_MODIFIED); - if (pte_val(pte) & _SUN4C_PAGE_WRITE) - pte = __pte(pte_val(pte) | _SUN4C_PAGE_SILENT_WRITE); - return pte; -} - -static pte_t sun4c_pte_mkyoung(pte_t pte) -{ - pte = __pte(pte_val(pte) | _SUN4C_PAGE_ACCESSED); - if (pte_val(pte) & _SUN4C_PAGE_READ) - pte = __pte(pte_val(pte) | _SUN4C_PAGE_SILENT_READ); - return pte; -} - -/* - * Conversion functions: convert a page and protection to a page entry, - * and a page entry and page directory to the page they refer to. - */ -static pte_t sun4c_mk_pte(struct page *page, pgprot_t pgprot) -{ - return __pte(page_to_pfn(page) | pgprot_val(pgprot)); -} - -static pte_t sun4c_mk_pte_phys(unsigned long phys_page, pgprot_t pgprot) -{ - return __pte((phys_page >> PAGE_SHIFT) | pgprot_val(pgprot)); -} - -static pte_t sun4c_mk_pte_io(unsigned long page, pgprot_t pgprot, int space) -{ - return __pte(((page - PAGE_OFFSET) >> PAGE_SHIFT) | pgprot_val(pgprot)); -} - -static unsigned long sun4c_pte_pfn(pte_t pte) -{ - return pte_val(pte) & SUN4C_PFN_MASK; -} - -static pte_t sun4c_pgoff_to_pte(unsigned long pgoff) -{ - return __pte(pgoff | _SUN4C_PAGE_FILE); -} - -static unsigned long sun4c_pte_to_pgoff(pte_t pte) -{ - return pte_val(pte) & ((1UL << PTE_FILE_MAX_BITS) - 1); -} - - -static inline unsigned long sun4c_pmd_page_v(pmd_t pmd) -{ - return (pmd_val(pmd) & PAGE_MASK); -} - -static struct page *sun4c_pmd_page(pmd_t pmd) -{ - return virt_to_page(sun4c_pmd_page_v(pmd)); -} - -static unsigned long sun4c_pgd_page(pgd_t pgd) { return 0; } - -/* to find an entry in a page-table-directory */ -static inline pgd_t *sun4c_pgd_offset(struct mm_struct * mm, unsigned long address) -{ - return mm->pgd + (address >> SUN4C_PGDIR_SHIFT); -} - -/* Find an entry in the second-level page table.. */ -static pmd_t *sun4c_pmd_offset(pgd_t * dir, unsigned long address) -{ - return (pmd_t *) dir; -} - -/* Find an entry in the third-level page table.. */ -pte_t *sun4c_pte_offset_kernel(pmd_t * dir, unsigned long address) -{ - return (pte_t *) sun4c_pmd_page_v(*dir) + - ((address >> PAGE_SHIFT) & (SUN4C_PTRS_PER_PTE - 1)); -} - -static unsigned long sun4c_swp_type(swp_entry_t entry) -{ - return (entry.val & SUN4C_SWP_TYPE_MASK); -} - -static unsigned long sun4c_swp_offset(swp_entry_t entry) -{ - return (entry.val >> SUN4C_SWP_OFF_SHIFT) & SUN4C_SWP_OFF_MASK; -} - -static swp_entry_t sun4c_swp_entry(unsigned long type, unsigned long offset) -{ - return (swp_entry_t) { - (offset & SUN4C_SWP_OFF_MASK) << SUN4C_SWP_OFF_SHIFT - | (type & SUN4C_SWP_TYPE_MASK) }; -} - -static void sun4c_free_pte_slow(pte_t *pte) -{ - free_page((unsigned long)pte); -} - -static void sun4c_free_pgd_slow(pgd_t *pgd) -{ - free_page((unsigned long)pgd); -} - -static pgd_t *sun4c_get_pgd_fast(void) -{ - unsigned long *ret; - - if ((ret = pgd_quicklist) != NULL) { - pgd_quicklist = (unsigned long *)(*ret); - ret[0] = ret[1]; - pgtable_cache_size--; - } else { - pgd_t *init; - - ret = (unsigned long *)__get_free_page(GFP_KERNEL); - memset (ret, 0, (KERNBASE / SUN4C_PGDIR_SIZE) * sizeof(pgd_t)); - init = sun4c_pgd_offset(&init_mm, 0); - memcpy (((pgd_t *)ret) + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD, - (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t)); - } - return (pgd_t *)ret; -} - -static void sun4c_free_pgd_fast(pgd_t *pgd) -{ - *(unsigned long *)pgd = (unsigned long) pgd_quicklist; - pgd_quicklist = (unsigned long *) pgd; - pgtable_cache_size++; -} - - -static inline pte_t * -sun4c_pte_alloc_one_fast(struct mm_struct *mm, unsigned long address) -{ - unsigned long *ret; - - if ((ret = (unsigned long *)pte_quicklist) != NULL) { - pte_quicklist = (unsigned long *)(*ret); - ret[0] = ret[1]; - pgtable_cache_size--; - } - return (pte_t *)ret; -} - -static pte_t *sun4c_pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) -{ - pte_t *pte; - - if ((pte = sun4c_pte_alloc_one_fast(mm, address)) != NULL) - return pte; - - pte = (pte_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT); - return pte; -} - -static pgtable_t sun4c_pte_alloc_one(struct mm_struct *mm, unsigned long address) -{ - pte_t *pte; - struct page *page; - - pte = sun4c_pte_alloc_one_kernel(mm, address); - if (pte == NULL) - return NULL; - page = virt_to_page(pte); - pgtable_page_ctor(page); - return page; -} - -static inline void sun4c_free_pte_fast(pte_t *pte) -{ - *(unsigned long *)pte = (unsigned long) pte_quicklist; - pte_quicklist = (unsigned long *) pte; - pgtable_cache_size++; -} - -static void sun4c_pte_free(pgtable_t pte) -{ - pgtable_page_dtor(pte); - sun4c_free_pte_fast(page_address(pte)); -} - -/* - * allocating and freeing a pmd is trivial: the 1-entry pmd is - * inside the pgd, so has no extra memory associated with it. - */ -static pmd_t *sun4c_pmd_alloc_one(struct mm_struct *mm, unsigned long address) -{ - BUG(); - return NULL; -} - -static void sun4c_free_pmd_fast(pmd_t * pmd) { } - -static void sun4c_check_pgt_cache(int low, int high) -{ - if (pgtable_cache_size > high) { - do { - if (pgd_quicklist) - sun4c_free_pgd_slow(sun4c_get_pgd_fast()); - if (pte_quicklist) - sun4c_free_pte_slow(sun4c_pte_alloc_one_fast(NULL, 0)); - } while (pgtable_cache_size > low); - } -} - -/* An experiment, turn off by default for now... -DaveM */ -#define SUN4C_PRELOAD_PSEG - -void sun4c_update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *ptep) -{ - unsigned long flags; - int pseg; - - if (vma->vm_mm->context == NO_CONTEXT) - return; - - local_irq_save(flags); - address &= PAGE_MASK; - if ((pseg = sun4c_get_segmap(address)) == invalid_segment) { - struct sun4c_mmu_entry *entry = sun4c_user_strategy(); - struct mm_struct *mm = vma->vm_mm; - unsigned long start, end; - - entry->vaddr = start = (address & SUN4C_REAL_PGDIR_MASK); - entry->ctx = mm->context; - add_ring_ordered(sun4c_context_ring + mm->context, entry); - sun4c_put_segmap(entry->vaddr, entry->pseg); - end = start + SUN4C_REAL_PGDIR_SIZE; - while (start < end) { -#ifdef SUN4C_PRELOAD_PSEG - pgd_t *pgdp = sun4c_pgd_offset(mm, start); - pte_t *ptep; - - if (!pgdp) - goto no_mapping; - ptep = sun4c_pte_offset_kernel((pmd_t *) pgdp, start); - if (!ptep || !(pte_val(*ptep) & _SUN4C_PAGE_PRESENT)) - goto no_mapping; - sun4c_put_pte(start, pte_val(*ptep)); - goto next; - - no_mapping: -#endif - sun4c_put_pte(start, 0); -#ifdef SUN4C_PRELOAD_PSEG - next: -#endif - start += PAGE_SIZE; - } -#ifndef SUN4C_PRELOAD_PSEG - sun4c_put_pte(address, pte_val(*ptep)); -#endif - local_irq_restore(flags); - return; - } else { - struct sun4c_mmu_entry *entry = &mmu_entry_pool[pseg]; - - remove_lru(entry); - add_lru(entry); - } - - sun4c_put_pte(address, pte_val(*ptep)); - local_irq_restore(flags); -} - -extern void sparc_context_init(int); -extern unsigned long bootmem_init(unsigned long *pages_avail); -extern unsigned long last_valid_pfn; - -void __init sun4c_paging_init(void) -{ - int i, cnt; - unsigned long kernel_end, vaddr; - extern struct resource sparc_iomap; - unsigned long end_pfn, pages_avail; - - kernel_end = (unsigned long) &_end; - kernel_end = SUN4C_REAL_PGDIR_ALIGN(kernel_end); - - pages_avail = 0; - last_valid_pfn = bootmem_init(&pages_avail); - end_pfn = last_valid_pfn; - - sun4c_probe_mmu(); - invalid_segment = (num_segmaps - 1); - sun4c_init_mmu_entry_pool(); - sun4c_init_rings(); - sun4c_init_map_kernelprom(kernel_end); - sun4c_init_clean_mmu(kernel_end); - sun4c_init_fill_kernel_ring(SUN4C_KERNEL_BUCKETS); - sun4c_init_lock_area(sparc_iomap.start, IOBASE_END); - sun4c_init_lock_area(DVMA_VADDR, DVMA_END); - sun4c_init_lock_areas(); - sun4c_init_fill_user_ring(); - - sun4c_set_context(0); - memset(swapper_pg_dir, 0, PAGE_SIZE); - memset(pg0, 0, PAGE_SIZE); - memset(pg1, 0, PAGE_SIZE); - memset(pg2, 0, PAGE_SIZE); - memset(pg3, 0, PAGE_SIZE); - - /* Save work later. */ - vaddr = VMALLOC_START; - swapper_pg_dir[vaddr>>SUN4C_PGDIR_SHIFT] = __pgd(PGD_TABLE | (unsigned long) pg0); - vaddr += SUN4C_PGDIR_SIZE; - swapper_pg_dir[vaddr>>SUN4C_PGDIR_SHIFT] = __pgd(PGD_TABLE | (unsigned long) pg1); - vaddr += SUN4C_PGDIR_SIZE; - swapper_pg_dir[vaddr>>SUN4C_PGDIR_SHIFT] = __pgd(PGD_TABLE | (unsigned long) pg2); - vaddr += SUN4C_PGDIR_SIZE; - swapper_pg_dir[vaddr>>SUN4C_PGDIR_SHIFT] = __pgd(PGD_TABLE | (unsigned long) pg3); - sun4c_init_ss2_cache_bug(); - sparc_context_init(num_contexts); - - { - unsigned long zones_size[MAX_NR_ZONES]; - unsigned long zholes_size[MAX_NR_ZONES]; - unsigned long npages; - int znum; - - for (znum = 0; znum < MAX_NR_ZONES; znum++) - zones_size[znum] = zholes_size[znum] = 0; - - npages = max_low_pfn - pfn_base; - - zones_size[ZONE_DMA] = npages; - zholes_size[ZONE_DMA] = npages - pages_avail; - - npages = highend_pfn - max_low_pfn; - zones_size[ZONE_HIGHMEM] = npages; - zholes_size[ZONE_HIGHMEM] = npages - calc_highpages(); - - free_area_init_node(0, zones_size, pfn_base, zholes_size); - } - - cnt = 0; - for (i = 0; i < num_segmaps; i++) - if (mmu_entry_pool[i].locked) - cnt++; - - max_user_taken_entries = num_segmaps - cnt - 40 - 1; - - printk("SUN4C: %d mmu entries for the kernel\n", cnt); -} - -static pgprot_t sun4c_pgprot_noncached(pgprot_t prot) -{ - prot |= __pgprot(_SUN4C_PAGE_IO | _SUN4C_PAGE_NOCACHE); - - return prot; -} - -/* Load up routines and constants for sun4c mmu */ -void __init ld_mmu_sun4c(void) -{ - extern void ___xchg32_sun4c(void); - - printk("Loading sun4c MMU routines\n"); - - /* First the constants */ - BTFIXUPSET_SIMM13(pgdir_shift, SUN4C_PGDIR_SHIFT); - BTFIXUPSET_SETHI(pgdir_size, SUN4C_PGDIR_SIZE); - BTFIXUPSET_SETHI(pgdir_mask, SUN4C_PGDIR_MASK); - - BTFIXUPSET_SIMM13(ptrs_per_pmd, SUN4C_PTRS_PER_PMD); - BTFIXUPSET_SIMM13(ptrs_per_pgd, SUN4C_PTRS_PER_PGD); - BTFIXUPSET_SIMM13(user_ptrs_per_pgd, KERNBASE / SUN4C_PGDIR_SIZE); - - BTFIXUPSET_INT(page_none, pgprot_val(SUN4C_PAGE_NONE)); - PAGE_SHARED = pgprot_val(SUN4C_PAGE_SHARED); - BTFIXUPSET_INT(page_copy, pgprot_val(SUN4C_PAGE_COPY)); - BTFIXUPSET_INT(page_readonly, pgprot_val(SUN4C_PAGE_READONLY)); - BTFIXUPSET_INT(page_kernel, pgprot_val(SUN4C_PAGE_KERNEL)); - page_kernel = pgprot_val(SUN4C_PAGE_KERNEL); - - /* Functions */ - BTFIXUPSET_CALL(pgprot_noncached, sun4c_pgprot_noncached, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(___xchg32, ___xchg32_sun4c, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(do_check_pgt_cache, sun4c_check_pgt_cache, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(flush_cache_all, sun4c_flush_cache_all, BTFIXUPCALL_NORM); - - if (sun4c_vacinfo.do_hwflushes) { - BTFIXUPSET_CALL(sun4c_flush_page, sun4c_flush_page_hw, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(sun4c_flush_segment, sun4c_flush_segment_hw, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(sun4c_flush_context, sun4c_flush_context_hw, BTFIXUPCALL_NORM); - } else { - BTFIXUPSET_CALL(sun4c_flush_page, sun4c_flush_page_sw, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(sun4c_flush_segment, sun4c_flush_segment_sw, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(sun4c_flush_context, sun4c_flush_context_sw, BTFIXUPCALL_NORM); - } - - BTFIXUPSET_CALL(flush_tlb_mm, sun4c_flush_tlb_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_mm, sun4c_flush_cache_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(destroy_context, sun4c_destroy_context, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(switch_mm, sun4c_switch_mm, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_page, sun4c_flush_cache_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_page, sun4c_flush_tlb_page, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_range, sun4c_flush_tlb_range, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_cache_range, sun4c_flush_cache_range, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(__flush_page_to_ram, sun4c_flush_page_to_ram, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(flush_tlb_all, sun4c_flush_tlb_all, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(flush_sig_insns, sun4c_flush_sig_insns, BTFIXUPCALL_NOP); - - BTFIXUPSET_CALL(set_pte, sun4c_set_pte, BTFIXUPCALL_STO1O0); - - BTFIXUPSET_CALL(pte_pfn, sun4c_pte_pfn, BTFIXUPCALL_NORM); -#if 0 /* PAGE_SHIFT <= 12 */ /* Eek. Investigate. XXX */ - BTFIXUPSET_CALL(pmd_page, sun4c_pmd_page, BTFIXUPCALL_ANDNINT(PAGE_SIZE - 1)); -#else - BTFIXUPSET_CALL(pmd_page, sun4c_pmd_page, BTFIXUPCALL_NORM); -#endif - BTFIXUPSET_CALL(pmd_set, sun4c_pmd_set, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pmd_populate, sun4c_pmd_populate, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(pte_present, sun4c_pte_present, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pte_clear, sun4c_pte_clear, BTFIXUPCALL_STG0O0); - - BTFIXUPSET_CALL(pmd_bad, sun4c_pmd_bad, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pmd_present, sun4c_pmd_present, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pmd_clear, sun4c_pmd_clear, BTFIXUPCALL_STG0O0); - - BTFIXUPSET_CALL(pgd_none, sun4c_pgd_none, BTFIXUPCALL_RETINT(0)); - BTFIXUPSET_CALL(pgd_bad, sun4c_pgd_bad, BTFIXUPCALL_RETINT(0)); - BTFIXUPSET_CALL(pgd_present, sun4c_pgd_present, BTFIXUPCALL_RETINT(1)); - BTFIXUPSET_CALL(pgd_clear, sun4c_pgd_clear, BTFIXUPCALL_NOP); - - BTFIXUPSET_CALL(mk_pte, sun4c_mk_pte, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mk_pte_phys, sun4c_mk_pte_phys, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mk_pte_io, sun4c_mk_pte_io, BTFIXUPCALL_NORM); - - BTFIXUPSET_INT(pte_modify_mask, _SUN4C_PAGE_CHG_MASK); - BTFIXUPSET_CALL(pmd_offset, sun4c_pmd_offset, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pte_offset_kernel, sun4c_pte_offset_kernel, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(free_pte_fast, sun4c_free_pte_fast, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pte_free, sun4c_pte_free, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pte_alloc_one_kernel, sun4c_pte_alloc_one_kernel, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pte_alloc_one, sun4c_pte_alloc_one, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(free_pmd_fast, sun4c_free_pmd_fast, BTFIXUPCALL_NOP); - BTFIXUPSET_CALL(pmd_alloc_one, sun4c_pmd_alloc_one, BTFIXUPCALL_RETO0); - BTFIXUPSET_CALL(free_pgd_fast, sun4c_free_pgd_fast, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(get_pgd_fast, sun4c_get_pgd_fast, BTFIXUPCALL_NORM); - - BTFIXUPSET_HALF(pte_writei, _SUN4C_PAGE_WRITE); - BTFIXUPSET_HALF(pte_dirtyi, _SUN4C_PAGE_MODIFIED); - BTFIXUPSET_HALF(pte_youngi, _SUN4C_PAGE_ACCESSED); - BTFIXUPSET_HALF(pte_filei, _SUN4C_PAGE_FILE); - BTFIXUPSET_HALF(pte_wrprotecti, _SUN4C_PAGE_WRITE|_SUN4C_PAGE_SILENT_WRITE); - BTFIXUPSET_HALF(pte_mkcleani, _SUN4C_PAGE_MODIFIED|_SUN4C_PAGE_SILENT_WRITE); - BTFIXUPSET_HALF(pte_mkoldi, _SUN4C_PAGE_ACCESSED|_SUN4C_PAGE_SILENT_READ); - BTFIXUPSET_CALL(pte_mkwrite, sun4c_pte_mkwrite, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pte_mkdirty, sun4c_pte_mkdirty, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pte_mkyoung, sun4c_pte_mkyoung, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(update_mmu_cache, sun4c_update_mmu_cache, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(pte_to_pgoff, sun4c_pte_to_pgoff, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(pgoff_to_pte, sun4c_pgoff_to_pte, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(mmu_lockarea, sun4c_lockarea, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_unlockarea, sun4c_unlockarea, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(mmu_get_scsi_one, sun4c_get_scsi_one, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_get_scsi_sgl, sun4c_get_scsi_sgl, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_release_scsi_one, sun4c_release_scsi_one, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_release_scsi_sgl, sun4c_release_scsi_sgl, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(mmu_map_dma_area, sun4c_map_dma_area, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(mmu_unmap_dma_area, sun4c_unmap_dma_area, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(sparc_mapiorange, sun4c_mapiorange, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(sparc_unmapiorange, sun4c_unmapiorange, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(__swp_type, sun4c_swp_type, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(__swp_offset, sun4c_swp_offset, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(__swp_entry, sun4c_swp_entry, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(alloc_thread_info_node, sun4c_alloc_thread_info_node, BTFIXUPCALL_NORM); - BTFIXUPSET_CALL(free_thread_info, sun4c_free_thread_info, BTFIXUPCALL_NORM); - - BTFIXUPSET_CALL(mmu_info, sun4c_mmu_info, BTFIXUPCALL_NORM); - - /* These should _never_ get called with two level tables. */ - BTFIXUPSET_CALL(pgd_set, sun4c_pgd_set, BTFIXUPCALL_NOP); - BTFIXUPSET_CALL(pgd_page_vaddr, sun4c_pgd_page, BTFIXUPCALL_RETO0); -} diff --git a/arch/sparc/mm/ultra.S b/arch/sparc/mm/ultra.S index b57a5942ba6..874162a11ce 100644 --- a/arch/sparc/mm/ultra.S +++ b/arch/sparc/mm/ultra.S @@ -495,11 +495,11 @@ xcall_fetch_glob_regs: stx %o7, [%g1 + GR_SNAP_O7] stx %i7, [%g1 + GR_SNAP_I7] /* Don't try this at home kids... */ - rdpr %cwp, %g2 - sub %g2, 1, %g7 + rdpr %cwp, %g3 + sub %g3, 1, %g7 wrpr %g7, %cwp mov %i7, %g7 - wrpr %g2, %cwp + wrpr %g3, %cwp stx %g7, [%g1 + GR_SNAP_RPC] sethi %hi(trap_block), %g7 or %g7, %lo(trap_block), %g7 diff --git a/arch/sparc/mm/viking.S b/arch/sparc/mm/viking.S index 6dfcc13d310..bf8ee0613ae 100644 --- a/arch/sparc/mm/viking.S +++ b/arch/sparc/mm/viking.S @@ -14,7 +14,6 @@ #include <asm/page.h> #include <asm/pgtsrmmu.h> #include <asm/viking.h> -#include <asm/btfixup.h> #ifdef CONFIG_SMP .data diff --git a/arch/sparc/net/Makefile b/arch/sparc/net/Makefile new file mode 100644 index 00000000000..1306a58ac54 --- /dev/null +++ b/arch/sparc/net/Makefile @@ -0,0 +1,4 @@ +# +# Arch-specific network modules +# +obj-$(CONFIG_BPF_JIT) += bpf_jit_asm.o bpf_jit_comp.o diff --git a/arch/sparc/net/bpf_jit.h b/arch/sparc/net/bpf_jit.h new file mode 100644 index 00000000000..33d6b375ff1 --- /dev/null +++ b/arch/sparc/net/bpf_jit.h @@ -0,0 +1,68 @@ +#ifndef _BPF_JIT_H +#define _BPF_JIT_H + +/* Conventions: + * %g1 : temporary + * %g2 : Secondary temporary used by SKB data helper stubs. + * %g3 : packet offset passed into SKB data helper stubs. + * %o0 : pointer to skb (first argument given to JIT function) + * %o1 : BPF A accumulator + * %o2 : BPF X accumulator + * %o3 : Holds saved %o7 so we can call helper functions without needing + * to allocate a register window. + * %o4 : skb->len - skb->data_len + * %o5 : skb->data + */ + +#ifndef __ASSEMBLER__ +#define G0 0x00 +#define G1 0x01 +#define G3 0x03 +#define G6 0x06 +#define O0 0x08 +#define O1 0x09 +#define O2 0x0a +#define O3 0x0b +#define O4 0x0c +#define O5 0x0d +#define SP 0x0e +#define O7 0x0f +#define FP 0x1e + +#define r_SKB O0 +#define r_A O1 +#define r_X O2 +#define r_saved_O7 O3 +#define r_HEADLEN O4 +#define r_SKB_DATA O5 +#define r_TMP G1 +#define r_TMP2 G2 +#define r_OFF G3 + +/* assembly code in arch/sparc/net/bpf_jit_asm.S */ +extern u32 bpf_jit_load_word[]; +extern u32 bpf_jit_load_half[]; +extern u32 bpf_jit_load_byte[]; +extern u32 bpf_jit_load_byte_msh[]; +extern u32 bpf_jit_load_word_positive_offset[]; +extern u32 bpf_jit_load_half_positive_offset[]; +extern u32 bpf_jit_load_byte_positive_offset[]; +extern u32 bpf_jit_load_byte_msh_positive_offset[]; +extern u32 bpf_jit_load_word_negative_offset[]; +extern u32 bpf_jit_load_half_negative_offset[]; +extern u32 bpf_jit_load_byte_negative_offset[]; +extern u32 bpf_jit_load_byte_msh_negative_offset[]; + +#else +#define r_SKB %o0 +#define r_A %o1 +#define r_X %o2 +#define r_saved_O7 %o3 +#define r_HEADLEN %o4 +#define r_SKB_DATA %o5 +#define r_TMP %g1 +#define r_TMP2 %g2 +#define r_OFF %g3 +#endif + +#endif /* _BPF_JIT_H */ diff --git a/arch/sparc/net/bpf_jit_asm.S b/arch/sparc/net/bpf_jit_asm.S new file mode 100644 index 00000000000..9d016c7017f --- /dev/null +++ b/arch/sparc/net/bpf_jit_asm.S @@ -0,0 +1,205 @@ +#include <asm/ptrace.h> + +#include "bpf_jit.h" + +#ifdef CONFIG_SPARC64 +#define SAVE_SZ 176 +#define SCRATCH_OFF STACK_BIAS + 128 +#define BE_PTR(label) be,pn %xcc, label +#else +#define SAVE_SZ 96 +#define SCRATCH_OFF 72 +#define BE_PTR(label) be label +#endif + +#define SKF_MAX_NEG_OFF (-0x200000) /* SKF_LL_OFF from filter.h */ + + .text + .globl bpf_jit_load_word +bpf_jit_load_word: + cmp r_OFF, 0 + bl bpf_slow_path_word_neg + nop + .globl bpf_jit_load_word_positive_offset +bpf_jit_load_word_positive_offset: + sub r_HEADLEN, r_OFF, r_TMP + cmp r_TMP, 3 + ble bpf_slow_path_word + add r_SKB_DATA, r_OFF, r_TMP + andcc r_TMP, 3, %g0 + bne load_word_unaligned + nop + retl + ld [r_TMP], r_A +load_word_unaligned: + ldub [r_TMP + 0x0], r_OFF + ldub [r_TMP + 0x1], r_TMP2 + sll r_OFF, 8, r_OFF + or r_OFF, r_TMP2, r_OFF + ldub [r_TMP + 0x2], r_TMP2 + sll r_OFF, 8, r_OFF + or r_OFF, r_TMP2, r_OFF + ldub [r_TMP + 0x3], r_TMP2 + sll r_OFF, 8, r_OFF + retl + or r_OFF, r_TMP2, r_A + + .globl bpf_jit_load_half +bpf_jit_load_half: + cmp r_OFF, 0 + bl bpf_slow_path_half_neg + nop + .globl bpf_jit_load_half_positive_offset +bpf_jit_load_half_positive_offset: + sub r_HEADLEN, r_OFF, r_TMP + cmp r_TMP, 1 + ble bpf_slow_path_half + add r_SKB_DATA, r_OFF, r_TMP + andcc r_TMP, 1, %g0 + bne load_half_unaligned + nop + retl + lduh [r_TMP], r_A +load_half_unaligned: + ldub [r_TMP + 0x0], r_OFF + ldub [r_TMP + 0x1], r_TMP2 + sll r_OFF, 8, r_OFF + retl + or r_OFF, r_TMP2, r_A + + .globl bpf_jit_load_byte +bpf_jit_load_byte: + cmp r_OFF, 0 + bl bpf_slow_path_byte_neg + nop + .globl bpf_jit_load_byte_positive_offset +bpf_jit_load_byte_positive_offset: + cmp r_OFF, r_HEADLEN + bge bpf_slow_path_byte + nop + retl + ldub [r_SKB_DATA + r_OFF], r_A + + .globl bpf_jit_load_byte_msh +bpf_jit_load_byte_msh: + cmp r_OFF, 0 + bl bpf_slow_path_byte_msh_neg + nop + .globl bpf_jit_load_byte_msh_positive_offset +bpf_jit_load_byte_msh_positive_offset: + cmp r_OFF, r_HEADLEN + bge bpf_slow_path_byte_msh + nop + ldub [r_SKB_DATA + r_OFF], r_OFF + and r_OFF, 0xf, r_OFF + retl + sll r_OFF, 2, r_X + +#define bpf_slow_path_common(LEN) \ + save %sp, -SAVE_SZ, %sp; \ + mov %i0, %o0; \ + mov r_OFF, %o1; \ + add %fp, SCRATCH_OFF, %o2; \ + call skb_copy_bits; \ + mov (LEN), %o3; \ + cmp %o0, 0; \ + restore; + +bpf_slow_path_word: + bpf_slow_path_common(4) + bl bpf_error + ld [%sp + SCRATCH_OFF], r_A + retl + nop +bpf_slow_path_half: + bpf_slow_path_common(2) + bl bpf_error + lduh [%sp + SCRATCH_OFF], r_A + retl + nop +bpf_slow_path_byte: + bpf_slow_path_common(1) + bl bpf_error + ldub [%sp + SCRATCH_OFF], r_A + retl + nop +bpf_slow_path_byte_msh: + bpf_slow_path_common(1) + bl bpf_error + ldub [%sp + SCRATCH_OFF], r_A + and r_OFF, 0xf, r_OFF + retl + sll r_OFF, 2, r_X + +#define bpf_negative_common(LEN) \ + save %sp, -SAVE_SZ, %sp; \ + mov %i0, %o0; \ + mov r_OFF, %o1; \ + call bpf_internal_load_pointer_neg_helper; \ + mov (LEN), %o2; \ + mov %o0, r_TMP; \ + cmp %o0, 0; \ + BE_PTR(bpf_error); \ + restore; + +bpf_slow_path_word_neg: + sethi %hi(SKF_MAX_NEG_OFF), r_TMP + cmp r_OFF, r_TMP + bl bpf_error + nop + .globl bpf_jit_load_word_negative_offset +bpf_jit_load_word_negative_offset: + bpf_negative_common(4) + andcc r_TMP, 3, %g0 + bne load_word_unaligned + nop + retl + ld [r_TMP], r_A + +bpf_slow_path_half_neg: + sethi %hi(SKF_MAX_NEG_OFF), r_TMP + cmp r_OFF, r_TMP + bl bpf_error + nop + .globl bpf_jit_load_half_negative_offset +bpf_jit_load_half_negative_offset: + bpf_negative_common(2) + andcc r_TMP, 1, %g0 + bne load_half_unaligned + nop + retl + lduh [r_TMP], r_A + +bpf_slow_path_byte_neg: + sethi %hi(SKF_MAX_NEG_OFF), r_TMP + cmp r_OFF, r_TMP + bl bpf_error + nop + .globl bpf_jit_load_byte_negative_offset +bpf_jit_load_byte_negative_offset: + bpf_negative_common(1) + retl + ldub [r_TMP], r_A + +bpf_slow_path_byte_msh_neg: + sethi %hi(SKF_MAX_NEG_OFF), r_TMP + cmp r_OFF, r_TMP + bl bpf_error + nop + .globl bpf_jit_load_byte_msh_negative_offset +bpf_jit_load_byte_msh_negative_offset: + bpf_negative_common(1) + ldub [r_TMP], r_OFF + and r_OFF, 0xf, r_OFF + retl + sll r_OFF, 2, r_X + +bpf_error: + /* Make the JIT program return zero. The JIT epilogue + * stores away the original %o7 into r_saved_O7. The + * normal leaf function return is to use "retl" which + * would evalute to "jmpl %o7 + 8, %g0" but we want to + * use the saved value thus the sequence you see here. + */ + jmpl r_saved_O7 + 8, %g0 + clr %o0 diff --git a/arch/sparc/net/bpf_jit_comp.c b/arch/sparc/net/bpf_jit_comp.c new file mode 100644 index 00000000000..1a69244e785 --- /dev/null +++ b/arch/sparc/net/bpf_jit_comp.c @@ -0,0 +1,802 @@ +#include <linux/moduleloader.h> +#include <linux/workqueue.h> +#include <linux/netdevice.h> +#include <linux/filter.h> +#include <linux/cache.h> + +#include <asm/cacheflush.h> +#include <asm/ptrace.h> + +#include "bpf_jit.h" + +int bpf_jit_enable __read_mostly; + +static inline bool is_simm13(unsigned int value) +{ + return value + 0x1000 < 0x2000; +} + +static void bpf_flush_icache(void *start_, void *end_) +{ +#ifdef CONFIG_SPARC64 + /* Cheetah's I-cache is fully coherent. */ + if (tlb_type == spitfire) { + unsigned long start = (unsigned long) start_; + unsigned long end = (unsigned long) end_; + + start &= ~7UL; + end = (end + 7UL) & ~7UL; + while (start < end) { + flushi(start); + start += 32; + } + } +#endif +} + +#define SEEN_DATAREF 1 /* might call external helpers */ +#define SEEN_XREG 2 /* ebx is used */ +#define SEEN_MEM 4 /* use mem[] for temporary storage */ + +#define S13(X) ((X) & 0x1fff) +#define IMMED 0x00002000 +#define RD(X) ((X) << 25) +#define RS1(X) ((X) << 14) +#define RS2(X) ((X)) +#define OP(X) ((X) << 30) +#define OP2(X) ((X) << 22) +#define OP3(X) ((X) << 19) +#define COND(X) ((X) << 25) +#define F1(X) OP(X) +#define F2(X, Y) (OP(X) | OP2(Y)) +#define F3(X, Y) (OP(X) | OP3(Y)) + +#define CONDN COND(0x0) +#define CONDE COND(0x1) +#define CONDLE COND(0x2) +#define CONDL COND(0x3) +#define CONDLEU COND(0x4) +#define CONDCS COND(0x5) +#define CONDNEG COND(0x6) +#define CONDVC COND(0x7) +#define CONDA COND(0x8) +#define CONDNE COND(0x9) +#define CONDG COND(0xa) +#define CONDGE COND(0xb) +#define CONDGU COND(0xc) +#define CONDCC COND(0xd) +#define CONDPOS COND(0xe) +#define CONDVS COND(0xf) + +#define CONDGEU CONDCC +#define CONDLU CONDCS + +#define WDISP22(X) (((X) >> 2) & 0x3fffff) + +#define BA (F2(0, 2) | CONDA) +#define BGU (F2(0, 2) | CONDGU) +#define BLEU (F2(0, 2) | CONDLEU) +#define BGEU (F2(0, 2) | CONDGEU) +#define BLU (F2(0, 2) | CONDLU) +#define BE (F2(0, 2) | CONDE) +#define BNE (F2(0, 2) | CONDNE) + +#ifdef CONFIG_SPARC64 +#define BNE_PTR (F2(0, 1) | CONDNE | (2 << 20)) +#else +#define BNE_PTR BNE +#endif + +#define SETHI(K, REG) \ + (F2(0, 0x4) | RD(REG) | (((K) >> 10) & 0x3fffff)) +#define OR_LO(K, REG) \ + (F3(2, 0x02) | IMMED | RS1(REG) | ((K) & 0x3ff) | RD(REG)) + +#define ADD F3(2, 0x00) +#define AND F3(2, 0x01) +#define ANDCC F3(2, 0x11) +#define OR F3(2, 0x02) +#define SUB F3(2, 0x04) +#define SUBCC F3(2, 0x14) +#define MUL F3(2, 0x0a) /* umul */ +#define DIV F3(2, 0x0e) /* udiv */ +#define SLL F3(2, 0x25) +#define SRL F3(2, 0x26) +#define JMPL F3(2, 0x38) +#define CALL F1(1) +#define BR F2(0, 0x01) +#define RD_Y F3(2, 0x28) +#define WR_Y F3(2, 0x30) + +#define LD32 F3(3, 0x00) +#define LD8 F3(3, 0x01) +#define LD16 F3(3, 0x02) +#define LD64 F3(3, 0x0b) +#define ST32 F3(3, 0x04) + +#ifdef CONFIG_SPARC64 +#define LDPTR LD64 +#define BASE_STACKFRAME 176 +#else +#define LDPTR LD32 +#define BASE_STACKFRAME 96 +#endif + +#define LD32I (LD32 | IMMED) +#define LD8I (LD8 | IMMED) +#define LD16I (LD16 | IMMED) +#define LD64I (LD64 | IMMED) +#define LDPTRI (LDPTR | IMMED) +#define ST32I (ST32 | IMMED) + +#define emit_nop() \ +do { \ + *prog++ = SETHI(0, G0); \ +} while (0) + +#define emit_neg() \ +do { /* sub %g0, r_A, r_A */ \ + *prog++ = SUB | RS1(G0) | RS2(r_A) | RD(r_A); \ +} while (0) + +#define emit_reg_move(FROM, TO) \ +do { /* or %g0, FROM, TO */ \ + *prog++ = OR | RS1(G0) | RS2(FROM) | RD(TO); \ +} while (0) + +#define emit_clear(REG) \ +do { /* or %g0, %g0, REG */ \ + *prog++ = OR | RS1(G0) | RS2(G0) | RD(REG); \ +} while (0) + +#define emit_set_const(K, REG) \ +do { /* sethi %hi(K), REG */ \ + *prog++ = SETHI(K, REG); \ + /* or REG, %lo(K), REG */ \ + *prog++ = OR_LO(K, REG); \ +} while (0) + + /* Emit + * + * OP r_A, r_X, r_A + */ +#define emit_alu_X(OPCODE) \ +do { \ + seen |= SEEN_XREG; \ + *prog++ = OPCODE | RS1(r_A) | RS2(r_X) | RD(r_A); \ +} while (0) + + /* Emit either: + * + * OP r_A, K, r_A + * + * or + * + * sethi %hi(K), r_TMP + * or r_TMP, %lo(K), r_TMP + * OP r_A, r_TMP, r_A + * + * depending upon whether K fits in a signed 13-bit + * immediate instruction field. Emit nothing if K + * is zero. + */ +#define emit_alu_K(OPCODE, K) \ +do { \ + if (K) { \ + unsigned int _insn = OPCODE; \ + _insn |= RS1(r_A) | RD(r_A); \ + if (is_simm13(K)) { \ + *prog++ = _insn | IMMED | S13(K); \ + } else { \ + emit_set_const(K, r_TMP); \ + *prog++ = _insn | RS2(r_TMP); \ + } \ + } \ +} while (0) + +#define emit_loadimm(K, DEST) \ +do { \ + if (is_simm13(K)) { \ + /* or %g0, K, DEST */ \ + *prog++ = OR | IMMED | RS1(G0) | S13(K) | RD(DEST); \ + } else { \ + emit_set_const(K, DEST); \ + } \ +} while (0) + +#define emit_loadptr(BASE, STRUCT, FIELD, DEST) \ +do { unsigned int _off = offsetof(STRUCT, FIELD); \ + BUILD_BUG_ON(FIELD_SIZEOF(STRUCT, FIELD) != sizeof(void *)); \ + *prog++ = LDPTRI | RS1(BASE) | S13(_off) | RD(DEST); \ +} while (0) + +#define emit_load32(BASE, STRUCT, FIELD, DEST) \ +do { unsigned int _off = offsetof(STRUCT, FIELD); \ + BUILD_BUG_ON(FIELD_SIZEOF(STRUCT, FIELD) != sizeof(u32)); \ + *prog++ = LD32I | RS1(BASE) | S13(_off) | RD(DEST); \ +} while (0) + +#define emit_load16(BASE, STRUCT, FIELD, DEST) \ +do { unsigned int _off = offsetof(STRUCT, FIELD); \ + BUILD_BUG_ON(FIELD_SIZEOF(STRUCT, FIELD) != sizeof(u16)); \ + *prog++ = LD16I | RS1(BASE) | S13(_off) | RD(DEST); \ +} while (0) + +#define __emit_load8(BASE, STRUCT, FIELD, DEST) \ +do { unsigned int _off = offsetof(STRUCT, FIELD); \ + *prog++ = LD8I | RS1(BASE) | S13(_off) | RD(DEST); \ +} while (0) + +#define emit_load8(BASE, STRUCT, FIELD, DEST) \ +do { BUILD_BUG_ON(FIELD_SIZEOF(STRUCT, FIELD) != sizeof(u8)); \ + __emit_load8(BASE, STRUCT, FIELD, DEST); \ +} while (0) + +#define emit_ldmem(OFF, DEST) \ +do { *prog++ = LD32I | RS1(FP) | S13(-(OFF)) | RD(DEST); \ +} while (0) + +#define emit_stmem(OFF, SRC) \ +do { *prog++ = LD32I | RS1(FP) | S13(-(OFF)) | RD(SRC); \ +} while (0) + +#ifdef CONFIG_SMP +#ifdef CONFIG_SPARC64 +#define emit_load_cpu(REG) \ + emit_load16(G6, struct thread_info, cpu, REG) +#else +#define emit_load_cpu(REG) \ + emit_load32(G6, struct thread_info, cpu, REG) +#endif +#else +#define emit_load_cpu(REG) emit_clear(REG) +#endif + +#define emit_skb_loadptr(FIELD, DEST) \ + emit_loadptr(r_SKB, struct sk_buff, FIELD, DEST) +#define emit_skb_load32(FIELD, DEST) \ + emit_load32(r_SKB, struct sk_buff, FIELD, DEST) +#define emit_skb_load16(FIELD, DEST) \ + emit_load16(r_SKB, struct sk_buff, FIELD, DEST) +#define __emit_skb_load8(FIELD, DEST) \ + __emit_load8(r_SKB, struct sk_buff, FIELD, DEST) +#define emit_skb_load8(FIELD, DEST) \ + emit_load8(r_SKB, struct sk_buff, FIELD, DEST) + +#define emit_jmpl(BASE, IMM_OFF, LREG) \ + *prog++ = (JMPL | IMMED | RS1(BASE) | S13(IMM_OFF) | RD(LREG)) + +#define emit_call(FUNC) \ +do { void *_here = image + addrs[i] - 8; \ + unsigned int _off = (void *)(FUNC) - _here; \ + *prog++ = CALL | (((_off) >> 2) & 0x3fffffff); \ + emit_nop(); \ +} while (0) + +#define emit_branch(BR_OPC, DEST) \ +do { unsigned int _here = addrs[i] - 8; \ + *prog++ = BR_OPC | WDISP22((DEST) - _here); \ +} while (0) + +#define emit_branch_off(BR_OPC, OFF) \ +do { *prog++ = BR_OPC | WDISP22(OFF); \ +} while (0) + +#define emit_jump(DEST) emit_branch(BA, DEST) + +#define emit_read_y(REG) *prog++ = RD_Y | RD(REG) +#define emit_write_y(REG) *prog++ = WR_Y | IMMED | RS1(REG) | S13(0) + +#define emit_cmp(R1, R2) \ + *prog++ = (SUBCC | RS1(R1) | RS2(R2) | RD(G0)) + +#define emit_cmpi(R1, IMM) \ + *prog++ = (SUBCC | IMMED | RS1(R1) | S13(IMM) | RD(G0)); + +#define emit_btst(R1, R2) \ + *prog++ = (ANDCC | RS1(R1) | RS2(R2) | RD(G0)) + +#define emit_btsti(R1, IMM) \ + *prog++ = (ANDCC | IMMED | RS1(R1) | S13(IMM) | RD(G0)); + +#define emit_sub(R1, R2, R3) \ + *prog++ = (SUB | RS1(R1) | RS2(R2) | RD(R3)) + +#define emit_subi(R1, IMM, R3) \ + *prog++ = (SUB | IMMED | RS1(R1) | S13(IMM) | RD(R3)) + +#define emit_add(R1, R2, R3) \ + *prog++ = (ADD | RS1(R1) | RS2(R2) | RD(R3)) + +#define emit_addi(R1, IMM, R3) \ + *prog++ = (ADD | IMMED | RS1(R1) | S13(IMM) | RD(R3)) + +#define emit_alloc_stack(SZ) \ + *prog++ = (SUB | IMMED | RS1(SP) | S13(SZ) | RD(SP)) + +#define emit_release_stack(SZ) \ + *prog++ = (ADD | IMMED | RS1(SP) | S13(SZ) | RD(SP)) + +/* A note about branch offset calculations. The addrs[] array, + * indexed by BPF instruction, records the address after all the + * sparc instructions emitted for that BPF instruction. + * + * The most common case is to emit a branch at the end of such + * a code sequence. So this would be two instructions, the + * branch and it's delay slot. + * + * Therefore by default the branch emitters calculate the branch + * offset field as: + * + * destination - (addrs[i] - 8) + * + * This "addrs[i] - 8" is the address of the branch itself or + * what "." would be in assembler notation. The "8" part is + * how we take into consideration the branch and it's delay + * slot mentioned above. + * + * Sometimes we need to emit a branch earlier in the code + * sequence. And in these situations we adjust "destination" + * to accomodate this difference. For example, if we needed + * to emit a branch (and it's delay slot) right before the + * final instruction emitted for a BPF opcode, we'd use + * "destination + 4" instead of just plain "destination" above. + * + * This is why you see all of these funny emit_branch() and + * emit_jump() calls with adjusted offsets. + */ + +void bpf_jit_compile(struct sk_filter *fp) +{ + unsigned int cleanup_addr, proglen, oldproglen = 0; + u32 temp[8], *prog, *func, seen = 0, pass; + const struct sock_filter *filter = fp->insns; + int i, flen = fp->len, pc_ret0 = -1; + unsigned int *addrs; + void *image; + + if (!bpf_jit_enable) + return; + + addrs = kmalloc(flen * sizeof(*addrs), GFP_KERNEL); + if (addrs == NULL) + return; + + /* Before first pass, make a rough estimation of addrs[] + * each bpf instruction is translated to less than 64 bytes + */ + for (proglen = 0, i = 0; i < flen; i++) { + proglen += 64; + addrs[i] = proglen; + } + cleanup_addr = proglen; /* epilogue address */ + image = NULL; + for (pass = 0; pass < 10; pass++) { + u8 seen_or_pass0 = (pass == 0) ? (SEEN_XREG | SEEN_DATAREF | SEEN_MEM) : seen; + + /* no prologue/epilogue for trivial filters (RET something) */ + proglen = 0; + prog = temp; + + /* Prologue */ + if (seen_or_pass0) { + if (seen_or_pass0 & SEEN_MEM) { + unsigned int sz = BASE_STACKFRAME; + sz += BPF_MEMWORDS * sizeof(u32); + emit_alloc_stack(sz); + } + + /* Make sure we dont leek kernel memory. */ + if (seen_or_pass0 & SEEN_XREG) + emit_clear(r_X); + + /* If this filter needs to access skb data, + * load %o4 and %o5 with: + * %o4 = skb->len - skb->data_len + * %o5 = skb->data + * And also back up %o7 into r_saved_O7 so we can + * invoke the stubs using 'call'. + */ + if (seen_or_pass0 & SEEN_DATAREF) { + emit_load32(r_SKB, struct sk_buff, len, r_HEADLEN); + emit_load32(r_SKB, struct sk_buff, data_len, r_TMP); + emit_sub(r_HEADLEN, r_TMP, r_HEADLEN); + emit_loadptr(r_SKB, struct sk_buff, data, r_SKB_DATA); + } + } + emit_reg_move(O7, r_saved_O7); + + switch (filter[0].code) { + case BPF_S_RET_K: + case BPF_S_LD_W_LEN: + case BPF_S_ANC_PROTOCOL: + case BPF_S_ANC_PKTTYPE: + case BPF_S_ANC_IFINDEX: + case BPF_S_ANC_MARK: + case BPF_S_ANC_RXHASH: + case BPF_S_ANC_CPU: + case BPF_S_ANC_QUEUE: + case BPF_S_LD_W_ABS: + case BPF_S_LD_H_ABS: + case BPF_S_LD_B_ABS: + /* The first instruction sets the A register (or is + * a "RET 'constant'") + */ + break; + default: + /* Make sure we dont leak kernel information to the + * user. + */ + emit_clear(r_A); /* A = 0 */ + } + + for (i = 0; i < flen; i++) { + unsigned int K = filter[i].k; + unsigned int t_offset; + unsigned int f_offset; + u32 t_op, f_op; + int ilen; + + switch (filter[i].code) { + case BPF_S_ALU_ADD_X: /* A += X; */ + emit_alu_X(ADD); + break; + case BPF_S_ALU_ADD_K: /* A += K; */ + emit_alu_K(ADD, K); + break; + case BPF_S_ALU_SUB_X: /* A -= X; */ + emit_alu_X(SUB); + break; + case BPF_S_ALU_SUB_K: /* A -= K */ + emit_alu_K(SUB, K); + break; + case BPF_S_ALU_AND_X: /* A &= X */ + emit_alu_X(AND); + break; + case BPF_S_ALU_AND_K: /* A &= K */ + emit_alu_K(AND, K); + break; + case BPF_S_ALU_OR_X: /* A |= X */ + emit_alu_X(OR); + break; + case BPF_S_ALU_OR_K: /* A |= K */ + emit_alu_K(OR, K); + break; + case BPF_S_ALU_LSH_X: /* A <<= X */ + emit_alu_X(SLL); + break; + case BPF_S_ALU_LSH_K: /* A <<= K */ + emit_alu_K(SLL, K); + break; + case BPF_S_ALU_RSH_X: /* A >>= X */ + emit_alu_X(SRL); + break; + case BPF_S_ALU_RSH_K: /* A >>= K */ + emit_alu_K(SRL, K); + break; + case BPF_S_ALU_MUL_X: /* A *= X; */ + emit_alu_X(MUL); + break; + case BPF_S_ALU_MUL_K: /* A *= K */ + emit_alu_K(MUL, K); + break; + case BPF_S_ALU_DIV_K: /* A /= K */ + emit_alu_K(MUL, K); + emit_read_y(r_A); + break; + case BPF_S_ALU_DIV_X: /* A /= X; */ + emit_cmpi(r_X, 0); + if (pc_ret0 > 0) { + t_offset = addrs[pc_ret0 - 1]; +#ifdef CONFIG_SPARC32 + emit_branch(BE, t_offset + 20); +#else + emit_branch(BE, t_offset + 8); +#endif + emit_nop(); /* delay slot */ + } else { + emit_branch_off(BNE, 16); + emit_nop(); +#ifdef CONFIG_SPARC32 + emit_jump(cleanup_addr + 20); +#else + emit_jump(cleanup_addr + 8); +#endif + emit_clear(r_A); + } + emit_write_y(G0); +#ifdef CONFIG_SPARC32 + /* The Sparc v8 architecture requires + * three instructions between a %y + * register write and the first use. + */ + emit_nop(); + emit_nop(); + emit_nop(); +#endif + emit_alu_X(DIV); + break; + case BPF_S_ALU_NEG: + emit_neg(); + break; + case BPF_S_RET_K: + if (!K) { + if (pc_ret0 == -1) + pc_ret0 = i; + emit_clear(r_A); + } else { + emit_loadimm(K, r_A); + } + /* Fallthrough */ + case BPF_S_RET_A: + if (seen_or_pass0) { + if (i != flen - 1) { + emit_jump(cleanup_addr); + emit_nop(); + break; + } + if (seen_or_pass0 & SEEN_MEM) { + unsigned int sz = BASE_STACKFRAME; + sz += BPF_MEMWORDS * sizeof(u32); + emit_release_stack(sz); + } + } + /* jmpl %r_saved_O7 + 8, %g0 */ + emit_jmpl(r_saved_O7, 8, G0); + emit_reg_move(r_A, O0); /* delay slot */ + break; + case BPF_S_MISC_TAX: + seen |= SEEN_XREG; + emit_reg_move(r_A, r_X); + break; + case BPF_S_MISC_TXA: + seen |= SEEN_XREG; + emit_reg_move(r_X, r_A); + break; + case BPF_S_ANC_CPU: + emit_load_cpu(r_A); + break; + case BPF_S_ANC_PROTOCOL: + emit_skb_load16(protocol, r_A); + break; +#if 0 + /* GCC won't let us take the address of + * a bit field even though we very much + * know what we are doing here. + */ + case BPF_S_ANC_PKTTYPE: + __emit_skb_load8(pkt_type, r_A); + emit_alu_K(SRL, 5); + break; +#endif + case BPF_S_ANC_IFINDEX: + emit_skb_loadptr(dev, r_A); + emit_cmpi(r_A, 0); + emit_branch(BNE_PTR, cleanup_addr + 4); + emit_nop(); + emit_load32(r_A, struct net_device, ifindex, r_A); + break; + case BPF_S_ANC_MARK: + emit_skb_load32(mark, r_A); + break; + case BPF_S_ANC_QUEUE: + emit_skb_load16(queue_mapping, r_A); + break; + case BPF_S_ANC_HATYPE: + emit_skb_loadptr(dev, r_A); + emit_cmpi(r_A, 0); + emit_branch(BNE_PTR, cleanup_addr + 4); + emit_nop(); + emit_load16(r_A, struct net_device, type, r_A); + break; + case BPF_S_ANC_RXHASH: + emit_skb_load32(rxhash, r_A); + break; + + case BPF_S_LD_IMM: + emit_loadimm(K, r_A); + break; + case BPF_S_LDX_IMM: + emit_loadimm(K, r_X); + break; + case BPF_S_LD_MEM: + emit_ldmem(K * 4, r_A); + break; + case BPF_S_LDX_MEM: + emit_ldmem(K * 4, r_X); + break; + case BPF_S_ST: + emit_stmem(K * 4, r_A); + break; + case BPF_S_STX: + emit_stmem(K * 4, r_X); + break; + +#define CHOOSE_LOAD_FUNC(K, func) \ + ((int)K < 0 ? ((int)K >= SKF_LL_OFF ? func##_negative_offset : func) : func##_positive_offset) + + case BPF_S_LD_W_ABS: + func = CHOOSE_LOAD_FUNC(K, bpf_jit_load_word); +common_load: seen |= SEEN_DATAREF; + emit_loadimm(K, r_OFF); + emit_call(func); + break; + case BPF_S_LD_H_ABS: + func = CHOOSE_LOAD_FUNC(K, bpf_jit_load_half); + goto common_load; + case BPF_S_LD_B_ABS: + func = CHOOSE_LOAD_FUNC(K, bpf_jit_load_byte); + goto common_load; + case BPF_S_LDX_B_MSH: + func = CHOOSE_LOAD_FUNC(K, bpf_jit_load_byte_msh); + goto common_load; + case BPF_S_LD_W_IND: + func = bpf_jit_load_word; +common_load_ind: seen |= SEEN_DATAREF | SEEN_XREG; + if (K) { + if (is_simm13(K)) { + emit_addi(r_X, K, r_OFF); + } else { + emit_loadimm(K, r_TMP); + emit_add(r_X, r_TMP, r_OFF); + } + } else { + emit_reg_move(r_X, r_OFF); + } + emit_call(func); + break; + case BPF_S_LD_H_IND: + func = bpf_jit_load_half; + goto common_load_ind; + case BPF_S_LD_B_IND: + func = bpf_jit_load_byte; + goto common_load_ind; + case BPF_S_JMP_JA: + emit_jump(addrs[i + K]); + emit_nop(); + break; + +#define COND_SEL(CODE, TOP, FOP) \ + case CODE: \ + t_op = TOP; \ + f_op = FOP; \ + goto cond_branch + + COND_SEL(BPF_S_JMP_JGT_K, BGU, BLEU); + COND_SEL(BPF_S_JMP_JGE_K, BGEU, BLU); + COND_SEL(BPF_S_JMP_JEQ_K, BE, BNE); + COND_SEL(BPF_S_JMP_JSET_K, BNE, BE); + COND_SEL(BPF_S_JMP_JGT_X, BGU, BLEU); + COND_SEL(BPF_S_JMP_JGE_X, BGEU, BLU); + COND_SEL(BPF_S_JMP_JEQ_X, BE, BNE); + COND_SEL(BPF_S_JMP_JSET_X, BNE, BE); + +cond_branch: f_offset = addrs[i + filter[i].jf]; + t_offset = addrs[i + filter[i].jt]; + + /* same targets, can avoid doing the test :) */ + if (filter[i].jt == filter[i].jf) { + emit_jump(t_offset); + emit_nop(); + break; + } + + switch (filter[i].code) { + case BPF_S_JMP_JGT_X: + case BPF_S_JMP_JGE_X: + case BPF_S_JMP_JEQ_X: + seen |= SEEN_XREG; + emit_cmp(r_A, r_X); + break; + case BPF_S_JMP_JSET_X: + seen |= SEEN_XREG; + emit_btst(r_A, r_X); + break; + case BPF_S_JMP_JEQ_K: + case BPF_S_JMP_JGT_K: + case BPF_S_JMP_JGE_K: + if (is_simm13(K)) { + emit_cmpi(r_A, K); + } else { + emit_loadimm(K, r_TMP); + emit_cmp(r_A, r_TMP); + } + break; + case BPF_S_JMP_JSET_K: + if (is_simm13(K)) { + emit_btsti(r_A, K); + } else { + emit_loadimm(K, r_TMP); + emit_btst(r_A, r_TMP); + } + break; + } + if (filter[i].jt != 0) { + if (filter[i].jf) + t_offset += 8; + emit_branch(t_op, t_offset); + emit_nop(); /* delay slot */ + if (filter[i].jf) { + emit_jump(f_offset); + emit_nop(); + } + break; + } + emit_branch(f_op, f_offset); + emit_nop(); /* delay slot */ + break; + + default: + /* hmm, too complex filter, give up with jit compiler */ + goto out; + } + ilen = (void *) prog - (void *) temp; + if (image) { + if (unlikely(proglen + ilen > oldproglen)) { + pr_err("bpb_jit_compile fatal error\n"); + kfree(addrs); + module_free(NULL, image); + return; + } + memcpy(image + proglen, temp, ilen); + } + proglen += ilen; + addrs[i] = proglen; + prog = temp; + } + /* last bpf instruction is always a RET : + * use it to give the cleanup instruction(s) addr + */ + cleanup_addr = proglen - 8; /* jmpl; mov r_A,%o0; */ + if (seen_or_pass0 & SEEN_MEM) + cleanup_addr -= 4; /* add %sp, X, %sp; */ + + if (image) { + if (proglen != oldproglen) + pr_err("bpb_jit_compile proglen=%u != oldproglen=%u\n", + proglen, oldproglen); + break; + } + if (proglen == oldproglen) { + image = module_alloc(max_t(unsigned int, + proglen, + sizeof(struct work_struct))); + if (!image) + goto out; + } + oldproglen = proglen; + } + + if (bpf_jit_enable > 1) + pr_err("flen=%d proglen=%u pass=%d image=%p\n", + flen, proglen, pass, image); + + if (image) { + if (bpf_jit_enable > 1) + print_hex_dump(KERN_ERR, "JIT code: ", DUMP_PREFIX_ADDRESS, + 16, 1, image, proglen, false); + bpf_flush_icache(image, image + proglen); + fp->bpf_func = (void *)image; + } +out: + kfree(addrs); + return; +} + +static void jit_free_defer(struct work_struct *arg) +{ + module_free(NULL, arg); +} + +/* run from softirq, we must use a work_struct to call + * module_free() from process context + */ +void bpf_jit_free(struct sk_filter *fp) +{ + if (fp->bpf_func != sk_run_filter) { + struct work_struct *work = (struct work_struct *)fp->bpf_func; + + INIT_WORK(work, jit_free_defer); + schedule_work(work); + } +} diff --git a/arch/sparc/prom/Makefile b/arch/sparc/prom/Makefile index 8287bbe8876..020300b18c0 100644 --- a/arch/sparc/prom/Makefile +++ b/arch/sparc/prom/Makefile @@ -10,7 +10,6 @@ lib-$(CONFIG_SPARC32) += memory.o lib-y += misc_$(BITS).o lib-$(CONFIG_SPARC32) += mp.o lib-$(CONFIG_SPARC32) += ranges.o -lib-$(CONFIG_SPARC32) += segment.o lib-y += console_$(BITS).o lib-y += printf.o lib-y += tree_$(BITS).o diff --git a/arch/sparc/prom/segment.c b/arch/sparc/prom/segment.c deleted file mode 100644 index 86a663f1d3c..00000000000 --- a/arch/sparc/prom/segment.c +++ /dev/null @@ -1,28 +0,0 @@ -/* - * segment.c: Prom routine to map segments in other contexts before - * a standalone is completely mapped. This is for sun4 and - * sun4c architectures only. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <asm/openprom.h> -#include <asm/oplib.h> - -extern void restore_current(void); - -/* Set physical segment 'segment' at virtual address 'vaddr' in - * context 'ctx'. - */ -void -prom_putsegment(int ctx, unsigned long vaddr, int segment) -{ - unsigned long flags; - spin_lock_irqsave(&prom_lock, flags); - (*(romvec->pv_setctxt))(ctx, (char *) vaddr, segment); - restore_current(); - spin_unlock_irqrestore(&prom_lock, flags); -} |