diff options
80 files changed, 5312 insertions, 773 deletions
diff --git a/arch/s390/Kbuild b/arch/s390/Kbuild index cc45d25487b..647c3eccc3d 100644 --- a/arch/s390/Kbuild +++ b/arch/s390/Kbuild @@ -6,3 +6,4 @@ obj-$(CONFIG_S390_HYPFS_FS) += hypfs/ obj-$(CONFIG_APPLDATA_BASE) += appldata/ obj-$(CONFIG_MATHEMU) += math-emu/ obj-y += net/ +obj-$(CONFIG_PCI) += pci/ diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 3cbb8757704..32425af9d68 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -34,12 +34,6 @@ config GENERIC_BUG config GENERIC_BUG_RELATIVE_POINTERS def_bool y -config NO_IOMEM - def_bool y - -config NO_DMA - def_bool y - config ARCH_DMA_ADDR_T_64BIT def_bool 64BIT @@ -58,6 +52,12 @@ config KEXEC config AUDIT_ARCH def_bool y +config NO_IOPORT + def_bool y + +config PCI_QUIRKS + def_bool n + config S390 def_bool y select USE_GENERIC_SMP_HELPERS if SMP @@ -171,6 +171,10 @@ config HAVE_MARCH_Z196_FEATURES def_bool n select HAVE_MARCH_Z10_FEATURES +config HAVE_MARCH_ZEC12_FEATURES + def_bool n + select HAVE_MARCH_Z196_FEATURES + choice prompt "Processor type" default MARCH_G5 @@ -222,6 +226,13 @@ config MARCH_Z196 (2818 and 2817 series). The kernel will be slightly faster but will not work on older machines. +config MARCH_ZEC12 + bool "IBM zEC12" + select HAVE_MARCH_ZEC12_FEATURES if 64BIT + help + Select this to enable optimizations for IBM zEC12 (2827 series). The + kernel will be slightly faster but will not work on older machines. + endchoice config 64BIT @@ -426,6 +437,53 @@ config QDIO If unsure, say Y. +menuconfig PCI + bool "PCI support" + default n + depends on 64BIT + select ARCH_SUPPORTS_MSI + select PCI_MSI + help + Enable PCI support. + +if PCI + +config PCI_NR_FUNCTIONS + int "Maximum number of PCI functions (1-4096)" + range 1 4096 + default "64" + help + This allows you to specify the maximum number of PCI functions which + this kernel will support. + +source "drivers/pci/Kconfig" +source "drivers/pci/pcie/Kconfig" +source "drivers/pci/hotplug/Kconfig" + +endif # PCI + +config PCI_DOMAINS + def_bool PCI + +config HAS_IOMEM + def_bool PCI + +config IOMMU_HELPER + def_bool PCI + +config HAS_DMA + def_bool PCI + select HAVE_DMA_API_DEBUG + +config NEED_SG_DMA_LENGTH + def_bool PCI + +config HAVE_DMA_ATTRS + def_bool PCI + +config NEED_DMA_MAP_STATE + def_bool PCI + config CHSC_SCH def_tristate m prompt "Support for CHSC subchannels" diff --git a/arch/s390/Makefile b/arch/s390/Makefile index 49e76e8b477..4b8e08b56f4 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -41,6 +41,7 @@ cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990) cflags-$(CONFIG_MARCH_Z9_109) += $(call cc-option,-march=z9-109) cflags-$(CONFIG_MARCH_Z10) += $(call cc-option,-march=z10) cflags-$(CONFIG_MARCH_Z196) += $(call cc-option,-march=z196) +cflags-$(CONFIG_MARCH_ZEC12) += $(call cc-option,-march=zEC12) #KBUILD_IMAGE is necessary for make rpm KBUILD_IMAGE :=arch/s390/boot/image diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c index da3c1a7dcd8..b4dbade8ca2 100644 --- a/arch/s390/crypto/aes_s390.c +++ b/arch/s390/crypto/aes_s390.c @@ -325,7 +325,8 @@ static int ecb_aes_crypt(struct blkcipher_desc *desc, long func, void *param, u8 *in = walk->src.virt.addr; ret = crypt_s390_km(func, param, out, in, n); - BUG_ON((ret < 0) || (ret != n)); + if (ret < 0 || ret != n) + return -EIO; nbytes &= AES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, walk, nbytes); @@ -457,7 +458,8 @@ static int cbc_aes_crypt(struct blkcipher_desc *desc, long func, void *param, u8 *in = walk->src.virt.addr; ret = crypt_s390_kmc(func, param, out, in, n); - BUG_ON((ret < 0) || (ret != n)); + if (ret < 0 || ret != n) + return -EIO; nbytes &= AES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, walk, nbytes); @@ -625,7 +627,8 @@ static int xts_aes_crypt(struct blkcipher_desc *desc, long func, memcpy(xts_ctx->pcc.tweak, walk->iv, sizeof(xts_ctx->pcc.tweak)); param = xts_ctx->pcc.key + offset; ret = crypt_s390_pcc(func, param); - BUG_ON(ret < 0); + if (ret < 0) + return -EIO; memcpy(xts_ctx->xts_param, xts_ctx->pcc.xts, 16); param = xts_ctx->key + offset; @@ -636,7 +639,8 @@ static int xts_aes_crypt(struct blkcipher_desc *desc, long func, in = walk->src.virt.addr; ret = crypt_s390_km(func, param, out, in, n); - BUG_ON(ret < 0 || ret != n); + if (ret < 0 || ret != n) + return -EIO; nbytes &= AES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, walk, nbytes); @@ -769,7 +773,8 @@ static int ctr_aes_crypt(struct blkcipher_desc *desc, long func, crypto_inc(ctrblk + i, AES_BLOCK_SIZE); } ret = crypt_s390_kmctr(func, sctx->key, out, in, n, ctrblk); - BUG_ON(ret < 0 || ret != n); + if (ret < 0 || ret != n) + return -EIO; if (n > AES_BLOCK_SIZE) memcpy(ctrblk, ctrblk + n - AES_BLOCK_SIZE, AES_BLOCK_SIZE); @@ -788,7 +793,8 @@ static int ctr_aes_crypt(struct blkcipher_desc *desc, long func, in = walk->src.virt.addr; ret = crypt_s390_kmctr(func, sctx->key, buf, in, AES_BLOCK_SIZE, ctrblk); - BUG_ON(ret < 0 || ret != AES_BLOCK_SIZE); + if (ret < 0 || ret != AES_BLOCK_SIZE) + return -EIO; memcpy(out, buf, nbytes); crypto_inc(ctrblk, AES_BLOCK_SIZE); ret = blkcipher_walk_done(desc, walk, 0); diff --git a/arch/s390/crypto/des_s390.c b/arch/s390/crypto/des_s390.c index b49fb96f420..bcca01c9989 100644 --- a/arch/s390/crypto/des_s390.c +++ b/arch/s390/crypto/des_s390.c @@ -94,7 +94,8 @@ static int ecb_desall_crypt(struct blkcipher_desc *desc, long func, u8 *in = walk->src.virt.addr; ret = crypt_s390_km(func, key, out, in, n); - BUG_ON((ret < 0) || (ret != n)); + if (ret < 0 || ret != n) + return -EIO; nbytes &= DES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, walk, nbytes); @@ -120,7 +121,8 @@ static int cbc_desall_crypt(struct blkcipher_desc *desc, long func, u8 *in = walk->src.virt.addr; ret = crypt_s390_kmc(func, iv, out, in, n); - BUG_ON((ret < 0) || (ret != n)); + if (ret < 0 || ret != n) + return -EIO; nbytes &= DES_BLOCK_SIZE - 1; ret = blkcipher_walk_done(desc, walk, nbytes); @@ -386,7 +388,8 @@ static int ctr_desall_crypt(struct blkcipher_desc *desc, long func, crypto_inc(ctrblk + i, DES_BLOCK_SIZE); } ret = crypt_s390_kmctr(func, ctx->key, out, in, n, ctrblk); - BUG_ON((ret < 0) || (ret != n)); + if (ret < 0 || ret != n) + return -EIO; if (n > DES_BLOCK_SIZE) memcpy(ctrblk, ctrblk + n - DES_BLOCK_SIZE, DES_BLOCK_SIZE); @@ -404,7 +407,8 @@ static int ctr_desall_crypt(struct blkcipher_desc *desc, long func, in = walk->src.virt.addr; ret = crypt_s390_kmctr(func, ctx->key, buf, in, DES_BLOCK_SIZE, ctrblk); - BUG_ON(ret < 0 || ret != DES_BLOCK_SIZE); + if (ret < 0 || ret != DES_BLOCK_SIZE) + return -EIO; memcpy(out, buf, nbytes); crypto_inc(ctrblk, DES_BLOCK_SIZE); ret = blkcipher_walk_done(desc, walk, 0); diff --git a/arch/s390/crypto/ghash_s390.c b/arch/s390/crypto/ghash_s390.c index 1ebd3a15cca..d43485d142e 100644 --- a/arch/s390/crypto/ghash_s390.c +++ b/arch/s390/crypto/ghash_s390.c @@ -72,14 +72,16 @@ static int ghash_update(struct shash_desc *desc, if (!dctx->bytes) { ret = crypt_s390_kimd(KIMD_GHASH, ctx, buf, GHASH_BLOCK_SIZE); - BUG_ON(ret != GHASH_BLOCK_SIZE); + if (ret != GHASH_BLOCK_SIZE) + return -EIO; } } n = srclen & ~(GHASH_BLOCK_SIZE - 1); if (n) { ret = crypt_s390_kimd(KIMD_GHASH, ctx, src, n); - BUG_ON(ret != n); + if (ret != n) + return -EIO; src += n; srclen -= n; } @@ -92,7 +94,7 @@ static int ghash_update(struct shash_desc *desc, return 0; } -static void ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx) +static int ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx) { u8 *buf = dctx->buffer; int ret; @@ -103,21 +105,24 @@ static void ghash_flush(struct ghash_ctx *ctx, struct ghash_desc_ctx *dctx) memset(pos, 0, dctx->bytes); ret = crypt_s390_kimd(KIMD_GHASH, ctx, buf, GHASH_BLOCK_SIZE); - BUG_ON(ret != GHASH_BLOCK_SIZE); + if (ret != GHASH_BLOCK_SIZE) + return -EIO; } dctx->bytes = 0; + return 0; } static int ghash_final(struct shash_desc *desc, u8 *dst) { struct ghash_desc_ctx *dctx = shash_desc_ctx(desc); struct ghash_ctx *ctx = crypto_shash_ctx(desc->tfm); + int ret; - ghash_flush(ctx, dctx); - memcpy(dst, ctx->icv, GHASH_BLOCK_SIZE); - - return 0; + ret = ghash_flush(ctx, dctx); + if (!ret) + memcpy(dst, ctx->icv, GHASH_BLOCK_SIZE); + return ret; } static struct shash_alg ghash_alg = { diff --git a/arch/s390/crypto/sha_common.c b/arch/s390/crypto/sha_common.c index bd37d09b9d3..8620b0ec9c4 100644 --- a/arch/s390/crypto/sha_common.c +++ b/arch/s390/crypto/sha_common.c @@ -36,7 +36,8 @@ int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len) if (index) { memcpy(ctx->buf + index, data, bsize - index); ret = crypt_s390_kimd(ctx->func, ctx->state, ctx->buf, bsize); - BUG_ON(ret != bsize); + if (ret != bsize) + return -EIO; data += bsize - index; len -= bsize - index; index = 0; @@ -46,7 +47,8 @@ int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len) if (len >= bsize) { ret = crypt_s390_kimd(ctx->func, ctx->state, data, len & ~(bsize - 1)); - BUG_ON(ret != (len & ~(bsize - 1))); + if (ret != (len & ~(bsize - 1))) + return -EIO; data += ret; len -= ret; } @@ -88,7 +90,8 @@ int s390_sha_final(struct shash_desc *desc, u8 *out) memcpy(ctx->buf + end - 8, &bits, sizeof(bits)); ret = crypt_s390_kimd(ctx->func, ctx->state, ctx->buf, end); - BUG_ON(ret != end); + if (ret != end) + return -EIO; /* copy digest to out */ memcpy(out, ctx->state, crypto_shash_digestsize(desc->tfm)); diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h index 6f573890fb2..15422933c60 100644 --- a/arch/s390/include/asm/bitops.h +++ b/arch/s390/include/asm/bitops.h @@ -640,6 +640,87 @@ static inline unsigned long find_first_bit(const unsigned long * addr, } #define find_first_bit find_first_bit +/* + * Big endian variant whichs starts bit counting from left using + * the flogr (find leftmost one) instruction. + */ +static inline unsigned long __flo_word(unsigned long nr, unsigned long val) +{ + register unsigned long bit asm("2") = val; + register unsigned long out asm("3"); + + asm volatile ( + " .insn rre,0xb9830000,%[bit],%[bit]\n" + : [bit] "+d" (bit), [out] "=d" (out) : : "cc"); + return nr + bit; +} + +/* + * 64 bit special left bitops format: + * order in memory: + * 00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f + * 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f + * 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f + * 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f + * after that follows the next long with bit numbers + * 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f + * 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f + * 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f + * 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f + * The reason for this bit ordering is the fact that + * the hardware sets bits in a bitmap starting at bit 0 + * and we don't want to scan the bitmap from the 'wrong + * end'. + */ +static inline unsigned long find_first_bit_left(const unsigned long *addr, + unsigned long size) +{ + unsigned long bytes, bits; + + if (!size) + return 0; + bytes = __ffs_word_loop(addr, size); + bits = __flo_word(bytes * 8, __load_ulong_be(addr, bytes)); + return (bits < size) ? bits : size; +} + +static inline int find_next_bit_left(const unsigned long *addr, + unsigned long size, + unsigned long offset) +{ + const unsigned long *p; + unsigned long bit, set; + + if (offset >= size) + return size; + bit = offset & (__BITOPS_WORDSIZE - 1); + offset -= bit; + size -= offset; + p = addr + offset / __BITOPS_WORDSIZE; + if (bit) { + set = __flo_word(0, *p & (~0UL << bit)); + if (set >= size) + return size + offset; + if (set < __BITOPS_WORDSIZE) + return set + offset; + offset += __BITOPS_WORDSIZE; + size -= __BITOPS_WORDSIZE; + p++; + } + return offset + find_first_bit_left(p, size); +} + +#define for_each_set_bit_left(bit, addr, size) \ + for ((bit) = find_first_bit_left((addr), (size)); \ + (bit) < (size); \ + (bit) = find_next_bit_left((addr), (size), (bit) + 1)) + +/* same as for_each_set_bit() but use bit as value to start with */ +#define for_each_set_bit_left_cont(bit, addr, size) \ + for ((bit) = find_next_bit_left((addr), (size), (bit)); \ + (bit) < (size); \ + (bit) = find_next_bit_left((addr), (size), (bit) + 1)) + /** * find_next_zero_bit - find the first zero bit in a memory region * @addr: The address to base the search on diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h index 1cb4bb3f32d..6d1f3573f0d 100644 --- a/arch/s390/include/asm/ccwdev.h +++ b/arch/s390/include/asm/ccwdev.h @@ -18,6 +18,9 @@ struct irb; struct ccw1; struct ccw_dev_id; +/* from asm/schid.h */ +struct subchannel_id; + /* simplified initializers for struct ccw_device: * CCW_DEVICE and CCW_DEVICE_DEVTYPE initialize one * entry in your MODULE_DEVICE_TABLE and set the match_flag correctly */ @@ -223,8 +226,7 @@ extern int ccw_device_force_console(void); int ccw_device_siosl(struct ccw_device *); -// FIXME: these have to go -extern int _ccw_device_get_subchannel_number(struct ccw_device *); +extern void ccw_device_get_schid(struct ccw_device *, struct subchannel_id *); extern void *ccw_device_get_chp_desc(struct ccw_device *, int); #endif /* _S390_CCWDEV_H_ */ diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h index 01a905eb11e..23723ce5ca7 100644 --- a/arch/s390/include/asm/ccwgroup.h +++ b/arch/s390/include/asm/ccwgroup.h @@ -59,6 +59,9 @@ extern void ccwgroup_driver_unregister (struct ccwgroup_driver *cdriver); int ccwgroup_create_dev(struct device *root, struct ccwgroup_driver *gdrv, int num_devices, const char *buf); +extern int ccwgroup_set_online(struct ccwgroup_device *gdev); +extern int ccwgroup_set_offline(struct ccwgroup_device *gdev); + extern int ccwgroup_probe_ccwdev(struct ccw_device *cdev); extern void ccwgroup_remove_ccwdev(struct ccw_device *cdev); diff --git a/arch/s390/include/asm/clp.h b/arch/s390/include/asm/clp.h new file mode 100644 index 00000000000..6c3aecc245f --- /dev/null +++ b/arch/s390/include/asm/clp.h @@ -0,0 +1,28 @@ +#ifndef _ASM_S390_CLP_H +#define _ASM_S390_CLP_H + +/* CLP common request & response block size */ +#define CLP_BLK_SIZE (PAGE_SIZE * 2) + +struct clp_req_hdr { + u16 len; + u16 cmd; +} __packed; + +struct clp_rsp_hdr { + u16 len; + u16 rsp; +} __packed; + +/* CLP Response Codes */ +#define CLP_RC_OK 0x0010 /* Command request successfully */ +#define CLP_RC_CMD 0x0020 /* Command code not recognized */ +#define CLP_RC_PERM 0x0030 /* Command not authorized */ +#define CLP_RC_FMT 0x0040 /* Invalid command request format */ +#define CLP_RC_LEN 0x0050 /* Invalid command request length */ +#define CLP_RC_8K 0x0060 /* Command requires 8K LPCB */ +#define CLP_RC_RESNOT0 0x0070 /* Reserved field not zero */ +#define CLP_RC_NODATA 0x0080 /* No data available */ +#define CLP_RC_FC_UNKNOWN 0x0100 /* Function code not recognized */ + +#endif diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h new file mode 100644 index 00000000000..8a32f7dfd3a --- /dev/null +++ b/arch/s390/include/asm/dma-mapping.h @@ -0,0 +1,76 @@ +#ifndef _ASM_S390_DMA_MAPPING_H +#define _ASM_S390_DMA_MAPPING_H + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/mm.h> +#include <linux/scatterlist.h> +#include <linux/dma-attrs.h> +#include <linux/dma-debug.h> +#include <linux/io.h> + +#define DMA_ERROR_CODE (~(dma_addr_t) 0x0) + +extern struct dma_map_ops s390_dma_ops; + +static inline struct dma_map_ops *get_dma_ops(struct device *dev) +{ + return &s390_dma_ops; +} + +extern int dma_set_mask(struct device *dev, u64 mask); +extern int dma_is_consistent(struct device *dev, dma_addr_t dma_handle); +extern void dma_cache_sync(struct device *dev, void *vaddr, size_t size, + enum dma_data_direction direction); + +#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f) +#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h) + +#include <asm-generic/dma-mapping-common.h> + +static inline int dma_supported(struct device *dev, u64 mask) +{ + struct dma_map_ops *dma_ops = get_dma_ops(dev); + + if (dma_ops->dma_supported == NULL) + return 1; + return dma_ops->dma_supported(dev, mask); +} + +static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size) +{ + if (!dev->dma_mask) + return 0; + return addr + size - 1 <= *dev->dma_mask; +} + +static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) +{ + struct dma_map_ops *dma_ops = get_dma_ops(dev); + + if (dma_ops->mapping_error) + return dma_ops->mapping_error(dev, dma_addr); + return (dma_addr == 0UL); +} + +static inline void *dma_alloc_coherent(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag) +{ + struct dma_map_ops *ops = get_dma_ops(dev); + void *ret; + + ret = ops->alloc(dev, size, dma_handle, flag, NULL); + debug_dma_alloc_coherent(dev, size, *dma_handle, ret); + return ret; +} + +static inline void dma_free_coherent(struct device *dev, size_t size, + void *cpu_addr, dma_addr_t dma_handle) +{ + struct dma_map_ops *dma_ops = get_dma_ops(dev); + + dma_ops->free(dev, size, cpu_addr, dma_handle, NULL); + debug_dma_free_coherent(dev, size, cpu_addr, dma_handle); +} + +#endif /* _ASM_S390_DMA_MAPPING_H */ diff --git a/arch/s390/include/asm/dma.h b/arch/s390/include/asm/dma.h index 6fb6de4f15b..de015d85e3e 100644 --- a/arch/s390/include/asm/dma.h +++ b/arch/s390/include/asm/dma.h @@ -1,14 +1,13 @@ -/* - * S390 version - */ - -#ifndef _ASM_DMA_H -#define _ASM_DMA_H +#ifndef _ASM_S390_DMA_H +#define _ASM_S390_DMA_H -#include <asm/io.h> /* need byte IO */ +#include <asm/io.h> +/* + * MAX_DMA_ADDRESS is ambiguous because on s390 its completely unrelated + * to DMA. It _is_ used for the s390 memory zone split at 2GB caused + * by the 31 bit heritage. + */ #define MAX_DMA_ADDRESS 0x80000000 -#define free_dma(x) do { } while (0) - -#endif /* _ASM_DMA_H */ +#endif /* _ASM_S390_DMA_H */ diff --git a/arch/s390/include/asm/hw_irq.h b/arch/s390/include/asm/hw_irq.h new file mode 100644 index 00000000000..7e3d2586c1f --- /dev/null +++ b/arch/s390/include/asm/hw_irq.h @@ -0,0 +1,22 @@ +#ifndef _HW_IRQ_H +#define _HW_IRQ_H + +#include <linux/msi.h> +#include <linux/pci.h> + +static inline struct msi_desc *irq_get_msi_desc(unsigned int irq) +{ + return __irq_get_msi_desc(irq); +} + +/* Must be called with msi map lock held */ +static inline int irq_set_msi_desc(unsigned int irq, struct msi_desc *msi) +{ + if (!msi) + return -EINVAL; + + msi->irq = irq; + return 0; +} + +#endif diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h index 559e921a6bb..16c3eb164f4 100644 --- a/arch/s390/include/asm/io.h +++ b/arch/s390/include/asm/io.h @@ -9,9 +9,9 @@ #ifndef _S390_IO_H #define _S390_IO_H +#include <linux/kernel.h> #include <asm/page.h> - -#define IO_SPACE_LIMIT 0xffffffff +#include <asm/pci_io.h> /* * Change virtual addresses to physical addresses and vv. @@ -24,10 +24,11 @@ static inline unsigned long virt_to_phys(volatile void * address) " lra %0,0(%1)\n" " jz 0f\n" " la %0,0\n" - "0:" + "0:" : "=a" (real_address) : "a" (address) : "cc"); - return real_address; + return real_address; } +#define virt_to_phys virt_to_phys static inline void * phys_to_virt(unsigned long address) { @@ -42,4 +43,50 @@ void unxlate_dev_mem_ptr(unsigned long phys, void *addr); */ #define xlate_dev_kmem_ptr(p) p +#define IO_SPACE_LIMIT 0 + +#ifdef CONFIG_PCI + +#define ioremap_nocache(addr, size) ioremap(addr, size) +#define ioremap_wc ioremap_nocache + +/* TODO: s390 cannot support io_remap_pfn_range... */ +#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \ + remap_pfn_range(vma, vaddr, pfn, size, prot) + +static inline void __iomem *ioremap(unsigned long offset, unsigned long size) +{ + return (void __iomem *) offset; +} + +static inline void iounmap(volatile void __iomem *addr) +{ +} + +/* + * s390 needs a private implementation of pci_iomap since ioremap with its + * offset parameter isn't sufficient. That's because BAR spaces are not + * disjunctive on s390 so we need the bar parameter of pci_iomap to find + * the corresponding device and create the mapping cookie. + */ +#define pci_iomap pci_iomap +#define pci_iounmap pci_iounmap + +#define memcpy_fromio(dst, src, count) zpci_memcpy_fromio(dst, src, count) +#define memcpy_toio(dst, src, count) zpci_memcpy_toio(dst, src, count) +#define memset_io(dst, val, count) zpci_memset_io(dst, val, count) + +#define __raw_readb zpci_read_u8 +#define __raw_readw zpci_read_u16 +#define __raw_readl zpci_read_u32 +#define __raw_readq zpci_read_u64 +#define __raw_writeb zpci_write_u8 +#define __raw_writew zpci_write_u16 +#define __raw_writel zpci_write_u32 +#define __raw_writeq zpci_write_u64 + +#endif /* CONFIG_PCI */ + +#include <asm-generic/io.h> + #endif diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h index 6703dd986fd..e6972f85d2b 100644 --- a/arch/s390/include/asm/irq.h +++ b/arch/s390/include/asm/irq.h @@ -33,6 +33,8 @@ enum interruption_class { IOINT_APB, IOINT_ADM, IOINT_CSC, + IOINT_PCI, + IOINT_MSI, NMI_NMI, NR_IRQS, }; @@ -51,4 +53,14 @@ void service_subclass_irq_unregister(void); void measurement_alert_subclass_register(void); void measurement_alert_subclass_unregister(void); +#ifdef CONFIG_LOCKDEP +# define disable_irq_nosync_lockdep(irq) disable_irq_nosync(irq) +# define disable_irq_nosync_lockdep_irqsave(irq, flags) \ + disable_irq_nosync(irq) +# define disable_irq_lockdep(irq) disable_irq(irq) +# define enable_irq_lockdep(irq) enable_irq(irq) +# define enable_irq_lockdep_irqrestore(irq, flags) \ + enable_irq(irq) +#endif + #endif /* _ASM_IRQ_H */ diff --git a/arch/s390/include/asm/isc.h b/arch/s390/include/asm/isc.h index 5ae606456b0..68d7d68300f 100644 --- a/arch/s390/include/asm/isc.h +++ b/arch/s390/include/asm/isc.h @@ -18,6 +18,7 @@ #define CHSC_SCH_ISC 7 /* CHSC subchannels */ /* Adapter interrupts. */ #define QDIO_AIRQ_ISC IO_SCH_ISC /* I/O subchannel in qdio mode */ +#define PCI_ISC 2 /* PCI I/O subchannels */ #define AP_ISC 6 /* adjunct processor (crypto) devices */ /* Functions for registration of I/O interruption subclasses */ diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h index 39faa4ac966..a86ad408407 100644 --- a/arch/s390/include/asm/page.h +++ b/arch/s390/include/asm/page.h @@ -30,6 +30,8 @@ #include <asm/setup.h> #ifndef __ASSEMBLY__ +void storage_key_init_range(unsigned long start, unsigned long end); + static unsigned long pfmf(unsigned long function, unsigned long address) { asm volatile( diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 42a145c9ddd..a6175ad0c42 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -1,10 +1,158 @@ #ifndef __ASM_S390_PCI_H #define __ASM_S390_PCI_H -/* S/390 systems don't have a PCI bus. This file is just here because some stupid .c code - * includes it even if CONFIG_PCI is not set. - */ +/* must be set before including asm-generic/pci.h */ #define PCI_DMA_BUS_IS_PHYS (0) +/* must be set before including pci_clp.h */ +#define PCI_BAR_COUNT 6 -#endif /* __ASM_S390_PCI_H */ +#include <asm-generic/pci.h> +#include <asm-generic/pci-dma-compat.h> +#include <asm/pci_clp.h> +#define PCIBIOS_MIN_IO 0x1000 +#define PCIBIOS_MIN_MEM 0x10000000 + +#define pcibios_assign_all_busses() (0) + +void __iomem *pci_iomap(struct pci_dev *, int, unsigned long); +void pci_iounmap(struct pci_dev *, void __iomem *); +int pci_domain_nr(struct pci_bus *); +int pci_proc_domain(struct pci_bus *); + +/* MSI arch hooks */ +#define arch_setup_msi_irqs arch_setup_msi_irqs +#define arch_teardown_msi_irqs arch_teardown_msi_irqs + +#define ZPCI_BUS_NR 0 /* default bus number */ +#define ZPCI_DEVFN 0 /* default device number */ + +/* PCI Function Controls */ +#define ZPCI_FC_FN_ENABLED 0x80 +#define ZPCI_FC_ERROR 0x40 +#define ZPCI_FC_BLOCKED 0x20 +#define ZPCI_FC_DMA_ENABLED 0x10 + +struct msi_map { + unsigned long irq; + struct msi_desc *msi; + struct hlist_node msi_chain; +}; + +#define ZPCI_NR_MSI_VECS 64 +#define ZPCI_MSI_MASK (ZPCI_NR_MSI_VECS - 1) + +enum zpci_state { + ZPCI_FN_STATE_RESERVED, + ZPCI_FN_STATE_STANDBY, + ZPCI_FN_STATE_CONFIGURED, + ZPCI_FN_STATE_ONLINE, + NR_ZPCI_FN_STATES, +}; + +struct zpci_bar_struct { + u32 val; /* bar start & 3 flag bits */ + u8 size; /* order 2 exponent */ + u16 map_idx; /* index into bar mapping array */ +}; + +/* Private data per function */ +struct zpci_dev { + struct pci_dev *pdev; + struct pci_bus *bus; + struct list_head entry; /* list of all zpci_devices, needed for hotplug, etc. */ + + enum zpci_state state; + u32 fid; /* function ID, used by sclp */ + u32 fh; /* function handle, used by insn's */ + u16 pchid; /* physical channel ID */ + u8 pfgid; /* function group ID */ + u16 domain; + + /* IRQ stuff */ + u64 msi_addr; /* MSI address */ + struct zdev_irq_map *irq_map; + struct msi_map *msi_map[ZPCI_NR_MSI_VECS]; + unsigned int aisb; /* number of the summary bit */ + + /* DMA stuff */ + unsigned long *dma_table; + spinlock_t dma_table_lock; + int tlb_refresh; + + spinlock_t iommu_bitmap_lock; + unsigned long *iommu_bitmap; + unsigned long iommu_size; + unsigned long iommu_pages; + unsigned int next_bit; + + struct zpci_bar_struct bars[PCI_BAR_COUNT]; + + u64 start_dma; /* Start of available DMA addresses */ + u64 end_dma; /* End of available DMA addresses */ + u64 dma_mask; /* DMA address space mask */ + + enum pci_bus_speed max_bus_speed; +}; + +struct pci_hp_callback_ops { + int (*create_slot) (struct zpci_dev *zdev); + void (*remove_slot) (struct zpci_dev *zdev); +}; + +static inline bool zdev_enabled(struct zpci_dev *zdev) +{ + return (zdev->fh & (1UL << 31)) ? true : false; +} + +/* ----------------------------------------------------------------------------- + Prototypes +----------------------------------------------------------------------------- */ +/* Base stuff */ +struct zpci_dev *zpci_alloc_device(void); +int zpci_create_device(struct zpci_dev *); +int zpci_enable_device(struct zpci_dev *); +void zpci_stop_device(struct zpci_dev *); +void zpci_free_device(struct zpci_dev *); +int zpci_scan_device(struct zpci_dev *); +int zpci_register_ioat(struct zpci_dev *, u8, u64, u64, u64); +int zpci_unregister_ioat(struct zpci_dev *, u8); + +/* CLP */ +int clp_find_pci_devices(void); +int clp_add_pci_device(u32, u32, int); +int clp_enable_fh(struct zpci_dev *, u8); +int clp_disable_fh(struct zpci_dev *); + +/* MSI */ +struct msi_desc *__irq_get_msi_desc(unsigned int); +int zpci_msi_set_mask_bits(struct msi_desc *, u32, u32); +int zpci_setup_msi_irq(struct zpci_dev *, struct msi_desc *, unsigned int, int); +void zpci_teardown_msi_irq(struct zpci_dev *, struct msi_desc *); +int zpci_msihash_init(void); +void zpci_msihash_exit(void); + +/* Error handling and recovery */ +void zpci_event_error(void *); +void zpci_event_availability(void *); + +/* Helpers */ +struct zpci_dev *get_zdev(struct pci_dev *); +struct zpci_dev *get_zdev_by_fid(u32); +bool zpci_fid_present(u32); + +/* sysfs */ +int zpci_sysfs_add_device(struct device *); +void zpci_sysfs_remove_device(struct device *); + +/* DMA */ +int zpci_dma_init(void); +void zpci_dma_exit(void); + +/* Hotplug */ +extern struct mutex zpci_list_lock; +extern struct list_head zpci_list; +extern struct pci_hp_callback_ops hotplug_ops; +extern unsigned int pci_probe; + +#endif diff --git a/arch/s390/include/asm/pci_clp.h b/arch/s390/include/asm/pci_clp.h new file mode 100644 index 00000000000..d31d739f868 --- /dev/null +++ b/arch/s390/include/asm/pci_clp.h @@ -0,0 +1,182 @@ +#ifndef _ASM_S390_PCI_CLP_H +#define _ASM_S390_PCI_CLP_H + +#include <asm/clp.h> + +/* + * Call Logical Processor - Command Codes + */ +#define CLP_LIST_PCI 0x0002 +#define CLP_QUERY_PCI_FN 0x0003 +#define CLP_QUERY_PCI_FNGRP 0x0004 +#define CLP_SET_PCI_FN 0x0005 + +/* PCI function handle list entry */ +struct clp_fh_list_entry { + u16 device_id; + u16 vendor_id; + u32 config_state : 1; + u32 : 31; + u32 fid; /* PCI function id */ + u32 fh; /* PCI function handle */ +} __packed; + +#define CLP_RC_SETPCIFN_FH 0x0101 /* Invalid PCI fn handle */ +#define CLP_RC_SETPCIFN_FHOP 0x0102 /* Fn handle not valid for op */ +#define CLP_RC_SETPCIFN_DMAAS 0x0103 /* Invalid DMA addr space */ +#define CLP_RC_SETPCIFN_RES 0x0104 /* Insufficient resources */ +#define CLP_RC_SETPCIFN_ALRDY 0x0105 /* Fn already in requested state */ +#define CLP_RC_SETPCIFN_ERR 0x0106 /* Fn in permanent error state */ +#define CLP_RC_SETPCIFN_RECPND 0x0107 /* Error recovery pending */ +#define CLP_RC_SETPCIFN_BUSY 0x0108 /* Fn busy */ +#define CLP_RC_LISTPCI_BADRT 0x010a /* Resume token not recognized */ +#define CLP_RC_QUERYPCIFG_PFGID 0x010b /* Unrecognized PFGID */ + +/* request or response block header length */ +#define LIST_PCI_HDR_LEN 32 + +/* Number of function handles fitting in response block */ +#define CLP_FH_LIST_NR_ENTRIES \ + ((CLP_BLK_SIZE - 2 * LIST_PCI_HDR_LEN) \ + / sizeof(struct clp_fh_list_entry)) + +#define CLP_SET_ENABLE_PCI_FN 0 /* Yes, 0 enables it */ +#define CLP_SET_DISABLE_PCI_FN 1 /* Yes, 1 disables it */ + +#define CLP_UTIL_STR_LEN 64 + +/* List PCI functions request */ +struct clp_req_list_pci { + struct clp_req_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u64 resume_token; + u64 reserved2; +} __packed; + +/* List PCI functions response */ +struct clp_rsp_list_pci { + struct clp_rsp_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u64 resume_token; + u32 reserved2; + u16 max_fn; + u8 reserved3; + u8 entry_size; + struct clp_fh_list_entry fh_list[CLP_FH_LIST_NR_ENTRIES]; +} __packed; + +/* Query PCI function request */ +struct clp_req_query_pci { + struct clp_req_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u32 fh; /* function handle */ + u32 reserved2; + u64 reserved3; +} __packed; + +/* Query PCI function response */ +struct clp_rsp_query_pci { + struct clp_rsp_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u16 vfn; /* virtual fn number */ + u16 : 7; + u16 util_str_avail : 1; /* utility string available? */ + u16 pfgid : 8; /* pci function group id */ + u32 fid; /* pci function id */ + u8 bar_size[PCI_BAR_COUNT]; + u16 pchid; + u32 bar[PCI_BAR_COUNT]; + u64 reserved2; + u64 sdma; /* start dma as */ + u64 edma; /* end dma as */ + u64 reserved3[6]; + u8 util_str[CLP_UTIL_STR_LEN]; /* utility string */ +} __packed; + +/* Query PCI function group request */ +struct clp_req_query_pci_grp { + struct clp_req_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u32 : 24; + u32 pfgid : 8; /* function group id */ + u32 reserved2; + u64 reserved3; +} __packed; + +/* Query PCI function group response */ +struct clp_rsp_query_pci_grp { + struct clp_rsp_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u16 : 4; + u16 noi : 12; /* number of interrupts */ + u8 version; + u8 : 6; + u8 frame : 1; + u8 refresh : 1; /* TLB refresh mode */ + u16 reserved2; + u16 mui; + u64 reserved3; + u64 dasm; /* dma address space mask */ + u64 msia; /* MSI address */ + u64 reserved4; + u64 reserved5; +} __packed; + +/* Set PCI function request */ +struct clp_req_set_pci { + struct clp_req_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u32 fh; /* function handle */ + u16 reserved2; + u8 oc; /* operation controls */ + u8 ndas; /* number of dma spaces */ + u64 reserved3; +} __packed; + +/* Set PCI function response */ +struct clp_rsp_set_pci { + struct clp_rsp_hdr hdr; + u32 fmt : 4; /* cmd request block format */ + u32 : 28; + u64 reserved1; + u32 fh; /* function handle */ + u32 reserved3; + u64 reserved4; +} __packed; + +/* Combined request/response block structures used by clp insn */ +struct clp_req_rsp_list_pci { + struct clp_req_list_pci request; + struct clp_rsp_list_pci response; +} __packed; + +struct clp_req_rsp_set_pci { + struct clp_req_set_pci request; + struct clp_rsp_set_pci response; +} __packed; + +struct clp_req_rsp_query_pci { + struct clp_req_query_pci request; + struct clp_rsp_query_pci response; +} __packed; + +struct clp_req_rsp_query_pci_grp { + struct clp_req_query_pci_grp request; + struct clp_rsp_query_pci_grp response; +} __packed; + +#endif diff --git a/arch/s390/include/asm/pci_dma.h b/arch/s390/include/asm/pci_dma.h new file mode 100644 index 00000000000..30b4c179c38 --- /dev/null +++ b/arch/s390/include/asm/pci_dma.h @@ -0,0 +1,196 @@ +#ifndef _ASM_S390_PCI_DMA_H +#define _ASM_S390_PCI_DMA_H + +/* I/O Translation Anchor (IOTA) */ +enum zpci_ioat_dtype { + ZPCI_IOTA_STO = 0, + ZPCI_IOTA_RTTO = 1, + ZPCI_IOTA_RSTO = 2, + ZPCI_IOTA_RFTO = 3, + ZPCI_IOTA_PFAA = 4, + ZPCI_IOTA_IOPFAA = 5, + ZPCI_IOTA_IOPTO = 7 +}; + +#define ZPCI_IOTA_IOT_ENABLED 0x800UL +#define ZPCI_IOTA_DT_ST (ZPCI_IOTA_STO << 2) +#define ZPCI_IOTA_DT_RT (ZPCI_IOTA_RTTO << 2) +#define ZPCI_IOTA_DT_RS (ZPCI_IOTA_RSTO << 2) +#define ZPCI_IOTA_DT_RF (ZPCI_IOTA_RFTO << 2) +#define ZPCI_IOTA_DT_PF (ZPCI_IOTA_PFAA << 2) +#define ZPCI_IOTA_FS_4K 0 +#define ZPCI_IOTA_FS_1M 1 +#define ZPCI_IOTA_FS_2G 2 +#define ZPCI_KEY (PAGE_DEFAULT_KEY << 5) + +#define ZPCI_IOTA_STO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_ST) +#define ZPCI_IOTA_RTTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RT) +#define ZPCI_IOTA_RSTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RS) +#define ZPCI_IOTA_RFTO_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_RF) +#define ZPCI_IOTA_RFAA_FLAG (ZPCI_IOTA_IOT_ENABLED | ZPCI_KEY | ZPCI_IOTA_DT_PF | ZPCI_IOTA_FS_2G) + +/* I/O Region and segment tables */ +#define ZPCI_INDEX_MASK 0x7ffUL + +#define ZPCI_TABLE_TYPE_MASK 0xc +#define ZPCI_TABLE_TYPE_RFX 0xc +#define ZPCI_TABLE_TYPE_RSX 0x8 +#define ZPCI_TABLE_TYPE_RTX 0x4 +#define ZPCI_TABLE_TYPE_SX 0x0 + +#define ZPCI_TABLE_LEN_RFX 0x3 +#define ZPCI_TABLE_LEN_RSX 0x3 +#define ZPCI_TABLE_LEN_RTX 0x3 + +#define ZPCI_TABLE_OFFSET_MASK 0xc0 +#define ZPCI_TABLE_SIZE 0x4000 +#define ZPCI_TABLE_ALIGN ZPCI_TABLE_SIZE +#define ZPCI_TABLE_ENTRY_SIZE (sizeof(unsigned long)) +#define ZPCI_TABLE_ENTRIES (ZPCI_TABLE_SIZE / ZPCI_TABLE_ENTRY_SIZE) + +#define ZPCI_TABLE_BITS 11 +#define ZPCI_PT_BITS 8 +#define ZPCI_ST_SHIFT (ZPCI_PT_BITS + PAGE_SHIFT) +#define ZPCI_RT_SHIFT (ZPCI_ST_SHIFT + ZPCI_TABLE_BITS) + +#define ZPCI_RTE_FLAG_MASK 0x3fffUL +#define ZPCI_RTE_ADDR_MASK (~ZPCI_RTE_FLAG_MASK) +#define ZPCI_STE_FLAG_MASK 0x7ffUL +#define ZPCI_STE_ADDR_MASK (~ZPCI_STE_FLAG_MASK) + +/* I/O Page tables */ +#define ZPCI_PTE_VALID_MASK 0x400 +#define ZPCI_PTE_INVALID 0x400 +#define ZPCI_PTE_VALID 0x000 +#define ZPCI_PT_SIZE 0x800 +#define ZPCI_PT_ALIGN ZPCI_PT_SIZE +#define ZPCI_PT_ENTRIES (ZPCI_PT_SIZE / ZPCI_TABLE_ENTRY_SIZE) +#define ZPCI_PT_MASK (ZPCI_PT_ENTRIES - 1) + +#define ZPCI_PTE_FLAG_MASK 0xfffUL +#define ZPCI_PTE_ADDR_MASK (~ZPCI_PTE_FLAG_MASK) + +/* Shared bits */ +#define ZPCI_TABLE_VALID 0x00 +#define ZPCI_TABLE_INVALID 0x20 +#define ZPCI_TABLE_PROTECTED 0x200 +#define ZPCI_TABLE_UNPROTECTED 0x000 + +#define ZPCI_TABLE_VALID_MASK 0x20 +#define ZPCI_TABLE_PROT_MASK 0x200 + +static inline unsigned int calc_rtx(dma_addr_t ptr) +{ + return ((unsigned long) ptr >> ZPCI_RT_SHIFT) & ZPCI_INDEX_MASK; +} + +static inline unsigned int calc_sx(dma_addr_t ptr) +{ + return ((unsigned long) ptr >> ZPCI_ST_SHIFT) & ZPCI_INDEX_MASK; +} + +static inline unsigned int calc_px(dma_addr_t ptr) +{ + return ((unsigned long) ptr >> PAGE_SHIFT) & ZPCI_PT_MASK; +} + +static inline void set_pt_pfaa(unsigned long *entry, void *pfaa) +{ + *entry &= ZPCI_PTE_FLAG_MASK; + *entry |= ((unsigned long) pfaa & ZPCI_PTE_ADDR_MASK); +} + +static inline void set_rt_sto(unsigned long *entry, void *sto) +{ + *entry &= ZPCI_RTE_FLAG_MASK; + *entry |= ((unsigned long) sto & ZPCI_RTE_ADDR_MASK); + *entry |= ZPCI_TABLE_TYPE_RTX; +} + +static inline void set_st_pto(unsigned long *entry, void *pto) +{ + *entry &= ZPCI_STE_FLAG_MASK; + *entry |= ((unsigned long) pto & ZPCI_STE_ADDR_MASK); + *entry |= ZPCI_TABLE_TYPE_SX; +} + +static inline void validate_rt_entry(unsigned long *entry) +{ + *entry &= ~ZPCI_TABLE_VALID_MASK; + *entry &= ~ZPCI_TABLE_OFFSET_MASK; + *entry |= ZPCI_TABLE_VALID; + *entry |= ZPCI_TABLE_LEN_RTX; +} + +static inline void validate_st_entry(unsigned long *entry) +{ + *entry &= ~ZPCI_TABLE_VALID_MASK; + *entry |= ZPCI_TABLE_VALID; +} + +static inline void invalidate_table_entry(unsigned long *entry) +{ + *entry &= ~ZPCI_TABLE_VALID_MASK; + *entry |= ZPCI_TABLE_INVALID; +} + +static inline void invalidate_pt_entry(unsigned long *entry) +{ + WARN_ON_ONCE((*entry & ZPCI_PTE_VALID_MASK) == ZPCI_PTE_INVALID); + *entry &= ~ZPCI_PTE_VALID_MASK; + *entry |= ZPCI_PTE_INVALID; +} + +static inline void validate_pt_entry(unsigned long *entry) +{ + WARN_ON_ONCE((*entry & ZPCI_PTE_VALID_MASK) == ZPCI_PTE_VALID); + *entry &= ~ZPCI_PTE_VALID_MASK; + *entry |= ZPCI_PTE_VALID; +} + +static inline void entry_set_protected(unsigned long *entry) +{ + *entry &= ~ZPCI_TABLE_PROT_MASK; + *entry |= ZPCI_TABLE_PROTECTED; +} + +static inline void entry_clr_protected(unsigned long *entry) +{ + *entry &= ~ZPCI_TABLE_PROT_MASK; + *entry |= ZPCI_TABLE_UNPROTECTED; +} + +static inline int reg_entry_isvalid(unsigned long entry) +{ + return (entry & ZPCI_TABLE_VALID_MASK) == ZPCI_TABLE_VALID; +} + +static inline int pt_entry_isvalid(unsigned long entry) +{ + return (entry & ZPCI_PTE_VALID_MASK) == ZPCI_PTE_VALID; +} + +static inline int entry_isprotected(unsigned long entry) +{ + return (entry & ZPCI_TABLE_PROT_MASK) == ZPCI_TABLE_PROTECTED; +} + +static inline unsigned long *get_rt_sto(unsigned long entry) +{ + return ((entry & ZPCI_TABLE_TYPE_MASK) == ZPCI_TABLE_TYPE_RTX) + ? (unsigned long *) (entry & ZPCI_RTE_ADDR_MASK) + : NULL; +} + +static inline unsigned long *get_st_pto(unsigned long entry) +{ + return ((entry & ZPCI_TABLE_TYPE_MASK) == ZPCI_TABLE_TYPE_SX) + ? (unsigned long *) (entry & ZPCI_STE_ADDR_MASK) + : NULL; +} + +/* Prototypes */ +int zpci_dma_init_device(struct zpci_dev *); +void zpci_dma_exit_device(struct zpci_dev *); + +#endif diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h new file mode 100644 index 00000000000..1486a98d5da --- /dev/null +++ b/arch/s390/include/asm/pci_insn.h @@ -0,0 +1,280 @@ +#ifndef _ASM_S390_PCI_INSN_H +#define _ASM_S390_PCI_INSN_H + +#include <linux/delay.h> + +#define ZPCI_INSN_BUSY_DELAY 1 /* 1 microsecond */ + +/* Load/Store status codes */ +#define ZPCI_PCI_ST_FUNC_NOT_ENABLED 4 +#define ZPCI_PCI_ST_FUNC_IN_ERR 8 +#define ZPCI_PCI_ST_BLOCKED 12 +#define ZPCI_PCI_ST_INSUF_RES 16 +#define ZPCI_PCI_ST_INVAL_AS 20 +#define ZPCI_PCI_ST_FUNC_ALREADY_ENABLED 24 +#define ZPCI_PCI_ST_DMA_AS_NOT_ENABLED 28 +#define ZPCI_PCI_ST_2ND_OP_IN_INV_AS 36 +#define ZPCI_PCI_ST_FUNC_NOT_AVAIL 40 +#define ZPCI_PCI_ST_ALREADY_IN_RQ_STATE 44 + +/* Load/Store return codes */ +#define ZPCI_PCI_LS_OK 0 +#define ZPCI_PCI_LS_ERR 1 +#define ZPCI_PCI_LS_BUSY 2 +#define ZPCI_PCI_LS_INVAL_HANDLE 3 + +/* Load/Store address space identifiers */ +#define ZPCI_PCIAS_MEMIO_0 0 +#define ZPCI_PCIAS_MEMIO_1 1 +#define ZPCI_PCIAS_MEMIO_2 2 +#define ZPCI_PCIAS_MEMIO_3 3 +#define ZPCI_PCIAS_MEMIO_4 4 +#define ZPCI_PCIAS_MEMIO_5 5 +#define ZPCI_PCIAS_CFGSPC 15 + +/* Modify PCI Function Controls */ +#define ZPCI_MOD_FC_REG_INT 2 +#define ZPCI_MOD_FC_DEREG_INT 3 +#define ZPCI_MOD_FC_REG_IOAT 4 +#define ZPCI_MOD_FC_DEREG_IOAT 5 +#define ZPCI_MOD_FC_REREG_IOAT 6 +#define ZPCI_MOD_FC_RESET_ERROR 7 +#define ZPCI_MOD_FC_RESET_BLOCK 9 +#define ZPCI_MOD_FC_SET_MEASURE 10 + +/* FIB function controls */ +#define ZPCI_FIB_FC_ENABLED 0x80 +#define ZPCI_FIB_FC_ERROR 0x40 +#define ZPCI_FIB_FC_LS_BLOCKED 0x20 +#define ZPCI_FIB_FC_DMAAS_REG 0x10 + +/* FIB function controls */ +#define ZPCI_FIB_FC_ENABLED 0x80 +#define ZPCI_FIB_FC_ERROR 0x40 +#define ZPCI_FIB_FC_LS_BLOCKED 0x20 +#define ZPCI_FIB_FC_DMAAS_REG 0x10 + +/* Function Information Block */ +struct zpci_fib { + u32 fmt : 8; /* format */ + u32 : 24; + u32 reserved1; + u8 fc; /* function controls */ + u8 reserved2; + u16 reserved3; + u32 reserved4; + u64 pba; /* PCI base address */ + u64 pal; /* PCI address limit */ + u64 iota; /* I/O Translation Anchor */ + u32 : 1; + u32 isc : 3; /* Interrupt subclass */ + u32 noi : 12; /* Number of interrupts */ + u32 : 2; + u32 aibvo : 6; /* Adapter interrupt bit vector offset */ + u32 sum : 1; /* Adapter int summary bit enabled */ + u32 : 1; + u32 aisbo : 6; /* Adapter int summary bit offset */ + u32 reserved5; + u64 aibv; /* Adapter int bit vector address */ + u64 aisb; /* Adapter int summary bit address */ + u64 fmb_addr; /* Function measurement block address and key */ + u64 reserved6; + u64 reserved7; +} __packed; + +/* Modify PCI Function Controls */ +static inline u8 __mpcifc(u64 req, struct zpci_fib *fib, u8 *status) +{ + u8 cc; + + asm volatile ( + " .insn rxy,0xe300000000d0,%[req],%[fib]\n" + " ipm %[cc]\n" + " srl %[cc],28\n" + : [cc] "=d" (cc), [req] "+d" (req), [fib] "+Q" (*fib) + : : "cc"); + *status = req >> 24 & 0xff; + return cc; +} + +static inline int mpcifc_instr(u64 req, struct zpci_fib *fib) +{ + u8 cc, status; + + do { + cc = __mpcifc(req, fib, &status); + if (cc == 2) + msleep(ZPCI_INSN_BUSY_DELAY); + } while (cc == 2); + + if (cc) + printk_once(KERN_ERR "%s: error cc: %d status: %d\n", + __func__, cc, status); + return (cc) ? -EIO : 0; +} + +/* Refresh PCI Translations */ +static inline u8 __rpcit(u64 fn, u64 addr, u64 range, u8 *status) +{ + register u64 __addr asm("2") = addr; + register u64 __range asm("3") = range; + u8 cc; + + asm volatile ( + " .insn rre,0xb9d30000,%[fn],%[addr]\n" + " ipm %[cc]\n" + " srl %[cc],28\n" + : [cc] "=d" (cc), [fn] "+d" (fn) + : [addr] "d" (__addr), "d" (__range) + : "cc"); + *status = fn >> 24 & 0xff; + return cc; +} + +static inline int rpcit_instr(u64 fn, u64 addr, u64 range) +{ + u8 cc, status; + + do { + cc = __rpcit(fn, addr, range, &status); + if (cc == 2) + udelay(ZPCI_INSN_BUSY_DELAY); + } while (cc == 2); + + if (cc) + printk_once(KERN_ERR "%s: error cc: %d status: %d dma_addr: %Lx size: %Lx\n", + __func__, cc, status, addr, range); + return (cc) ? -EIO : 0; +} + +/* Store PCI function controls */ +static inline u8 __stpcifc(u32 handle, u8 space, struct zpci_fib *fib, u8 *status) +{ + u64 fn = (u64) handle << 32 | space << 16; + u8 cc; + + asm volatile ( + " .insn rxy,0xe300000000d4,%[fn],%[fib]\n" + " ipm %[cc]\n" + " srl %[cc],28\n" + : [cc] "=d" (cc), [fn] "+d" (fn), [fib] "=m" (*fib) + : : "cc"); + *status = fn >> 24 & 0xff; + return cc; +} + +/* Set Interruption Controls */ +static inline void sic_instr(u16 ctl, char *unused, u8 isc) +{ + asm volatile ( + " .insn rsy,0xeb00000000d1,%[ctl],%[isc],%[u]\n" + : : [ctl] "d" (ctl), [isc] "d" (isc << 27), [u] "Q" (*unused)); +} + +/* PCI Load */ +static inline u8 __pcilg(u64 *data, u64 req, u64 offset, u8 *status) +{ + register u64 __req asm("2") = req; + register u64 __offset asm("3") = offset; + u64 __data; + u8 cc; + + asm volatile ( + " .insn rre,0xb9d20000,%[data],%[req]\n" + " ipm %[cc]\n" + " srl %[cc],28\n" + : [cc] "=d" (cc), [data] "=d" (__data), [req] "+d" (__req) + : "d" (__offset) + : "cc"); + *status = __req >> 24 & 0xff; + *data = __data; + return cc; +} + +static inline int pcilg_instr(u64 *data, u64 req, u64 offset) +{ + u8 cc, status; + + do { + cc = __pcilg(data, req, offset, &status); + if (cc == 2) + udelay(ZPCI_INSN_BUSY_DELAY); + } while (cc == 2); + + if (cc) { + printk_once(KERN_ERR "%s: error cc: %d status: %d req: %Lx offset: %Lx\n", + __func__, cc, status, req, offset); + /* TODO: on IO errors set data to 0xff... + * here or in users of pcilg (le conversion)? + */ + } + return (cc) ? -EIO : 0; +} + +/* PCI Store */ +static inline u8 __pcistg(u64 data, u64 req, u64 offset, u8 *status) +{ + register u64 __req asm("2") = req; + register u64 __offset asm("3") = offset; + u8 cc; + + asm volatile ( + " .insn rre,0xb9d00000,%[data],%[req]\n" + " ipm %[cc]\n" + " srl %[cc],28\n" + : [cc] "=d" (cc), [req] "+d" (__req) + : "d" (__offset), [data] "d" (data) + : "cc"); + *status = __req >> 24 & 0xff; + return cc; +} + +static inline int pcistg_instr(u64 data, u64 req, u64 offset) +{ + u8 cc, status; + + do { + cc = __pcistg(data, req, offset, &status); + if (cc == 2) + udelay(ZPCI_INSN_BUSY_DELAY); + } while (cc == 2); + + if (cc) + printk_once(KERN_ERR "%s: error cc: %d status: %d req: %Lx offset: %Lx\n", + __func__, cc, status, req, offset); + return (cc) ? -EIO : 0; +} + +/* PCI Store Block */ +static inline u8 __pcistb(const u64 *data, u64 req, u64 offset, u8 *status) +{ + u8 cc; + + asm volatile ( + " .insn rsy,0xeb00000000d0,%[req],%[offset],%[data]\n" + " ipm %[cc]\n" + " srl %[cc],28\n" + : [cc] "=d" (cc), [req] "+d" (req) + : [offset] "d" (offset), [data] "Q" (*data) + : "cc"); + *status = req >> 24 & 0xff; + return cc; +} + +static inline int pcistb_instr(const u64 *data, u64 req, u64 offset) +{ + u8 cc, status; + + do { + cc = __pcistb(data, req, offset, &status); + if (cc == 2) + udelay(ZPCI_INSN_BUSY_DELAY); + } while (cc == 2); + + if (cc) + printk_once(KERN_ERR "%s: error cc: %d status: %d req: %Lx offset: %Lx\n", + __func__, cc, status, req, offset); + return (cc) ? -EIO : 0; +} + +#endif diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h new file mode 100644 index 00000000000..5fd81f31d6c --- /dev/null +++ b/arch/s390/include/asm/pci_io.h @@ -0,0 +1,194 @@ +#ifndef _ASM_S390_PCI_IO_H +#define _ASM_S390_PCI_IO_H + +#ifdef CONFIG_PCI + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <asm/pci_insn.h> + +/* I/O Map */ +#define ZPCI_IOMAP_MAX_ENTRIES 0x7fff +#define ZPCI_IOMAP_ADDR_BASE 0x8000000000000000ULL +#define ZPCI_IOMAP_ADDR_IDX_MASK 0x7fff000000000000ULL +#define ZPCI_IOMAP_ADDR_OFF_MASK 0x0000ffffffffffffULL + +struct zpci_iomap_entry { + u32 fh; + u8 bar; +}; + +extern struct zpci_iomap_entry *zpci_iomap_start; + +#define ZPCI_IDX(addr) \ + (((__force u64) addr & ZPCI_IOMAP_ADDR_IDX_MASK) >> 48) +#define ZPCI_OFFSET(addr) \ + ((__force u64) addr & ZPCI_IOMAP_ADDR_OFF_MASK) + +#define ZPCI_CREATE_REQ(handle, space, len) \ + ((u64) handle << 32 | space << 16 | len) + +#define zpci_read(LENGTH, RETTYPE) \ +static inline RETTYPE zpci_read_##RETTYPE(const volatile void __iomem *addr) \ +{ \ + struct zpci_iomap_entry *entry = &zpci_iomap_start[ZPCI_IDX(addr)]; \ + u64 req = ZPCI_CREATE_REQ(entry->fh, entry->bar, LENGTH); \ + u64 data; \ + int rc; \ + \ + rc = pcilg_instr(&data, req, ZPCI_OFFSET(addr)); \ + if (rc) \ + data = -1ULL; \ + return (RETTYPE) data; \ +} + +#define zpci_write(LENGTH, VALTYPE) \ +static inline void zpci_write_##VALTYPE(VALTYPE val, \ + const volatile void __iomem *addr) \ +{ \ + struct zpci_iomap_entry *entry = &zpci_iomap_start[ZPCI_IDX(addr)]; \ + u64 req = ZPCI_CREATE_REQ(entry->fh, entry->bar, LENGTH); \ + u64 data = (VALTYPE) val; \ + \ + pcistg_instr(data, req, ZPCI_OFFSET(addr)); \ +} + +zpci_read(8, u64) +zpci_read(4, u32) +zpci_read(2, u16) +zpci_read(1, u8) +zpci_write(8, u64) +zpci_write(4, u32) +zpci_write(2, u16) +zpci_write(1, u8) + +static inline int zpci_write_single(u64 req, const u64 *data, u64 offset, u8 len) +{ + u64 val; + + switch (len) { + case 1: + val = (u64) *((u8 *) data); + break; + case 2: + val = (u64) *((u16 *) data); + break; + case 4: + val = (u64) *((u32 *) data); + break; + case 8: + val = (u64) *((u64 *) data); + break; + default: + val = 0; /* let FW report error */ + break; + } + return pcistg_instr(val, req, offset); +} + +static inline int zpci_read_single(u64 req, u64 *dst, u64 offset, u8 len) +{ + u64 data; + u8 cc; + + cc = pcilg_instr(&data, req, offset); + switch (len) { + case 1: + *((u8 *) dst) = (u8) data; + break; + case 2: + *((u16 *) dst) = (u16) data; + break; + case 4: + *((u32 *) dst) = (u32) data; + break; + case 8: + *((u64 *) dst) = (u64) data; + break; + } + return cc; +} + +static inline int zpci_write_block(u64 req, const u64 *data, u64 offset) +{ + return pcistb_instr(data, req, offset); +} + +static inline u8 zpci_get_max_write_size(u64 src, u64 dst, int len, int max) +{ + int count = len > max ? max : len, size = 1; + + while (!(src & 0x1) && !(dst & 0x1) && ((size << 1) <= count)) { + dst = dst >> 1; + src = src >> 1; + size = size << 1; + } + return size; +} + +static inline int zpci_memcpy_fromio(void *dst, + const volatile void __iomem *src, + unsigned long n) +{ + struct zpci_iomap_entry *entry = &zpci_iomap_start[ZPCI_IDX(src)]; + u64 req, offset = ZPCI_OFFSET(src); + int size, rc = 0; + + while (n > 0) { + size = zpci_get_max_write_size((u64) src, (u64) dst, n, 8); + req = ZPCI_CREATE_REQ(entry->fh, entry->bar, size); + rc = zpci_read_single(req, dst, offset, size); + if (rc) + break; + offset += size; + dst += size; + n -= size; + } + return rc; +} + +static inline int zpci_memcpy_toio(volatile void __iomem *dst, + const void *src, unsigned long n) +{ + struct zpci_iomap_entry *entry = &zpci_iomap_start[ZPCI_IDX(dst)]; + u64 req, offset = ZPCI_OFFSET(dst); + int size, rc = 0; + + if (!src) + return -EINVAL; + + while (n > 0) { + size = zpci_get_max_write_size((u64) dst, (u64) src, n, 128); + req = ZPCI_CREATE_REQ(entry->fh, entry->bar, size); + + if (size > 8) /* main path */ + rc = zpci_write_block(req, src, offset); + else + rc = zpci_write_single(req, src, offset, size); + if (rc) + break; + offset += size; + src += size; + n -= size; + } + return rc; +} + +static inline int zpci_memset_io(volatile void __iomem *dst, + unsigned char val, size_t count) +{ + u8 *src = kmalloc(count, GFP_KERNEL); + int rc; + + if (src == NULL) + return -ENOMEM; + memset(src, val, count); + + rc = zpci_memcpy_toio(dst, src, count); + kfree(src); + return rc; +} + +#endif /* CONFIG_PCI */ + +#endif /* _ASM_S390_PCI_IO_H */ diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index c814e6f5b57..c928dc1938f 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -35,7 +35,6 @@ extern pgd_t swapper_pg_dir[] __attribute__ ((aligned (4096))); extern void paging_init(void); extern void vmem_map_init(void); -extern void fault_init(void); /* * The S390 doesn't have any external MMU info: the kernel page @@ -336,6 +335,8 @@ extern unsigned long MODULES_END; #define _REGION3_ENTRY (_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_LENGTH) #define _REGION3_ENTRY_EMPTY (_REGION_ENTRY_TYPE_R3 | _REGION_ENTRY_INV) +#define _REGION3_ENTRY_LARGE 0x400 /* RTTE-format control, large page */ + /* Bits in the segment table entry */ #define _SEGMENT_ENTRY_ORIGIN ~0x7ffUL/* segment table origin */ #define _SEGMENT_ENTRY_RO 0x200 /* page protection bit */ @@ -435,6 +436,7 @@ static inline int pgd_bad(pgd_t pgd) { return 0; } static inline int pud_present(pud_t pud) { return 1; } static inline int pud_none(pud_t pud) { return 0; } +static inline int pud_large(pud_t pud) { return 0; } static inline int pud_bad(pud_t pud) { return 0; } #else /* CONFIG_64BIT */ @@ -480,6 +482,13 @@ static inline int pud_none(pud_t pud) return (pud_val(pud) & _REGION_ENTRY_INV) != 0UL; } +static inline int pud_large(pud_t pud) +{ + if ((pud_val(pud) & _REGION_ENTRY_TYPE_MASK) != _REGION_ENTRY_TYPE_R3) + return 0; + return !!(pud_val(pud) & _REGION3_ENTRY_LARGE); +} + static inline int pud_bad(pud_t pud) { /* diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h index e62a555557e..833788693f0 100644 --- a/arch/s390/include/asm/sclp.h +++ b/arch/s390/include/asm/sclp.h @@ -55,5 +55,7 @@ int sclp_chp_read_info(struct sclp_chp_info *info); void sclp_get_ipl_info(struct sclp_ipl_info *info); bool sclp_has_linemode(void); bool sclp_has_vt220(void); +int sclp_pci_configure(u32 fid); +int sclp_pci_deconfigure(u32 fid); #endif /* _ASM_S390_SCLP_H */ diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h index 9935cbd6a46..05425b18c0a 100644 --- a/arch/s390/include/asm/topology.h +++ b/arch/s390/include/asm/topology.h @@ -8,32 +8,34 @@ struct cpu; #ifdef CONFIG_SCHED_BOOK -extern unsigned char cpu_socket_id[NR_CPUS]; -#define topology_physical_package_id(cpu) (cpu_socket_id[cpu]) +struct cpu_topology_s390 { + unsigned short core_id; + unsigned short socket_id; + unsigned short book_id; + cpumask_t core_mask; + cpumask_t book_mask; +}; + +extern struct cpu_topology_s390 cpu_topology[NR_CPUS]; + +#define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id) +#define topology_core_id(cpu) (cpu_topology[cpu].core_id) +#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_mask) +#define topology_book_id(cpu) (cpu_topology[cpu].book_id) +#define topology_book_cpumask(cpu) (&cpu_topology[cpu].book_mask) -extern unsigned char cpu_core_id[NR_CPUS]; -extern cpumask_t cpu_core_map[NR_CPUS]; +#define mc_capable() 1 static inline const struct cpumask *cpu_coregroup_mask(int cpu) { - return &cpu_core_map[cpu]; + return &cpu_topology[cpu].core_mask; } -#define topology_core_id(cpu) (cpu_core_id[cpu]) -#define topology_core_cpumask(cpu) (&cpu_core_map[cpu]) -#define mc_capable() (1) - -extern unsigned char cpu_book_id[NR_CPUS]; -extern cpumask_t cpu_book_map[NR_CPUS]; - static inline const struct cpumask *cpu_book_mask(int cpu) { - return &cpu_book_map[cpu]; + return &cpu_topology[cpu].book_mask; } -#define topology_book_id(cpu) (cpu_book_id[cpu]) -#define topology_book_cpumask(cpu) (&cpu_book_map[cpu]) - int topology_cpu_init(struct cpu *); int topology_set_cpu_management(int fc); void topology_schedule_update(void); diff --git a/arch/s390/include/asm/vga.h b/arch/s390/include/asm/vga.h new file mode 100644 index 00000000000..d375526c261 --- /dev/null +++ b/arch/s390/include/asm/vga.h @@ -0,0 +1,6 @@ +#ifndef _ASM_S390_VGA_H +#define _ASM_S390_VGA_H + +/* Avoid compile errors due to missing asm/vga.h */ + +#endif /* _ASM_S390_VGA_H */ diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile index 4da52fe3174..2ac311ef5c9 100644 --- a/arch/s390/kernel/Makefile +++ b/arch/s390/kernel/Makefile @@ -23,7 +23,7 @@ CFLAGS_sysinfo.o += -Iinclude/math-emu -Iarch/s390/math-emu -w obj-y := bitmap.o traps.o time.o process.o base.o early.o setup.o vtime.o \ processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o \ debug.o irq.o ipl.o dis.o diag.o mem_detect.o sclp.o vdso.o \ - sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o + sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o obj-y += $(if $(CONFIG_64BIT),entry64.o,entry.o) obj-y += $(if $(CONFIG_64BIT),reipl64.o,reipl.o) diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c index f00286bd2ef..a7f9abd98cf 100644 --- a/arch/s390/kernel/dis.c +++ b/arch/s390/kernel/dis.c @@ -83,22 +83,29 @@ enum { U4_12, /* 4 bit unsigned value starting at 12 */ U4_16, /* 4 bit unsigned value starting at 16 */ U4_20, /* 4 bit unsigned value starting at 20 */ + U4_24, /* 4 bit unsigned value starting at 24 */ + U4_28, /* 4 bit unsigned value starting at 28 */ U4_32, /* 4 bit unsigned value starting at 32 */ + U4_36, /* 4 bit unsigned value starting at 36 */ U8_8, /* 8 bit unsigned value starting at 8 */ U8_16, /* 8 bit unsigned value starting at 16 */ U8_24, /* 8 bit unsigned value starting at 24 */ U8_32, /* 8 bit unsigned value starting at 32 */ I8_8, /* 8 bit signed value starting at 8 */ I8_32, /* 8 bit signed value starting at 32 */ + J12_12, /* PC relative offset at 12 */ I16_16, /* 16 bit signed value starting at 16 */ I16_32, /* 32 bit signed value starting at 16 */ U16_16, /* 16 bit unsigned value starting at 16 */ U16_32, /* 32 bit unsigned value starting at 16 */ J16_16, /* PC relative jump offset at 16 */ + J16_32, /* PC relative offset at 16 */ + I24_24, /* 24 bit signed value starting at 24 */ J32_16, /* PC relative long offset at 16 */ I32_16, /* 32 bit signed value starting at 16 */ U32_16, /* 32 bit unsigned value starting at 16 */ M_16, /* 4 bit optional mask starting at 16 */ + M_20, /* 4 bit optional mask starting at 20 */ RO_28, /* optional GPR starting at position 28 */ }; @@ -109,6 +116,8 @@ enum { enum { INSTR_INVALID, INSTR_E, + INSTR_IE_UU, + INSTR_MII_UPI, INSTR_RIE_R0IU, INSTR_RIE_R0UU, INSTR_RIE_RRP, INSTR_RIE_RRPU, INSTR_RIE_RRUUU, INSTR_RIE_RUPI, INSTR_RIE_RUPU, INSTR_RIE_RRI0, INSTR_RIL_RI, INSTR_RIL_RP, INSTR_RIL_RU, INSTR_RIL_UP, @@ -118,13 +127,15 @@ enum { INSTR_RRE_FF, INSTR_RRE_FR, INSTR_RRE_R0, INSTR_RRE_RA, INSTR_RRE_RF, INSTR_RRE_RR, INSTR_RRE_RR_OPT, INSTR_RRF_0UFF, INSTR_RRF_F0FF, INSTR_RRF_F0FF2, INSTR_RRF_F0FR, - INSTR_RRF_FFRU, INSTR_RRF_FUFF, INSTR_RRF_M0RR, INSTR_RRF_R0RR, - INSTR_RRF_R0RR2, INSTR_RRF_RURR, INSTR_RRF_U0FF, INSTR_RRF_U0RF, - INSTR_RRF_U0RR, INSTR_RRF_UUFF, INSTR_RRR_F0FF, INSTR_RRS_RRRDU, + INSTR_RRF_FFRU, INSTR_RRF_FUFF, INSTR_RRF_FUFF2, INSTR_RRF_M0RR, + INSTR_RRF_R0RR, INSTR_RRF_R0RR2, INSTR_RRF_RMRR, INSTR_RRF_RURR, + INSTR_RRF_U0FF, INSTR_RRF_U0RF, INSTR_RRF_U0RR, INSTR_RRF_UUFF, + INSTR_RRF_UUFR, INSTR_RRF_UURF, + INSTR_RRR_F0FF, INSTR_RRS_RRRDU, INSTR_RR_FF, INSTR_RR_R0, INSTR_RR_RR, INSTR_RR_U0, INSTR_RR_UR, INSTR_RSE_CCRD, INSTR_RSE_RRRD, INSTR_RSE_RURD, INSTR_RSI_RRP, - INSTR_RSL_R0RD, + INSTR_RSL_LRDFU, INSTR_RSL_R0RD, INSTR_RSY_AARD, INSTR_RSY_CCRD, INSTR_RSY_RRRD, INSTR_RSY_RURD, INSTR_RSY_RDRM, INSTR_RS_AARD, INSTR_RS_CCRD, INSTR_RS_R0RD, INSTR_RS_RRRD, @@ -136,6 +147,7 @@ enum { INSTR_SIL_RDI, INSTR_SIL_RDU, INSTR_SIY_IRD, INSTR_SIY_URD, INSTR_SI_URD, + INSTR_SMI_U0RDP, INSTR_SSE_RDRD, INSTR_SSF_RRDRD, INSTR_SSF_RRDRD2, INSTR_SS_L0RDRD, INSTR_SS_LIRDRD, INSTR_SS_LLRDRD, INSTR_SS_RRRDRD, @@ -191,31 +203,42 @@ static const struct operand operands[] = [U4_12] = { 4, 12, 0 }, [U4_16] = { 4, 16, 0 }, [U4_20] = { 4, 20, 0 }, + [U4_24] = { 4, 24, 0 }, + [U4_28] = { 4, 28, 0 }, [U4_32] = { 4, 32, 0 }, + [U4_36] = { 4, 36, 0 }, [U8_8] = { 8, 8, 0 }, [U8_16] = { 8, 16, 0 }, [U8_24] = { 8, 24, 0 }, [U8_32] = { 8, 32, 0 }, + [J12_12] = { 12, 12, OPERAND_PCREL }, [I16_16] = { 16, 16, OPERAND_SIGNED }, [U16_16] = { 16, 16, 0 }, [U16_32] = { 16, 32, 0 }, [J16_16] = { 16, 16, OPERAND_PCREL }, + [J16_32] = { 16, 32, OPERAND_PCREL }, [I16_32] = { 16, 32, OPERAND_SIGNED }, + [I24_24] = { 24, 24, OPERAND_SIGNED }, [J32_16] = { 32, 16, OPERAND_PCREL }, [I32_16] = { 32, 16, OPERAND_SIGNED }, [U32_16] = { 32, 16, 0 }, [M_16] = { 4, 16, 0 }, + [M_20] = { 4, 20, 0 }, [RO_28] = { 4, 28, OPERAND_GPR } }; static const unsigned char formats[][7] = { [INSTR_E] = { 0xff, 0,0,0,0,0,0 }, + [INSTR_IE_UU] = { 0xff, U4_24,U4_28,0,0,0,0 }, + [INSTR_MII_UPI] = { 0xff, U4_8,J12_12,I24_24 }, + [INSTR_RIE_R0IU] = { 0xff, R_8,I16_16,U4_32,0,0,0 }, [INSTR_RIE_R0UU] = { 0xff, R_8,U16_16,U4_32,0,0,0 }, + [INSTR_RIE_RRI0] = { 0xff, R_8,R_12,I16_16,0,0,0 }, [INSTR_RIE_RRPU] = { 0xff, R_8,R_12,U4_32,J16_16,0,0 }, [INSTR_RIE_RRP] = { 0xff, R_8,R_12,J16_16,0,0,0 }, [INSTR_RIE_RRUUU] = { 0xff, R_8,R_12,U8_16,U8_24,U8_32,0 }, [INSTR_RIE_RUPI] = { 0xff, R_8,I8_32,U4_12,J16_16,0,0 }, - [INSTR_RIE_RRI0] = { 0xff, R_8,R_12,I16_16,0,0,0 }, + [INSTR_RIE_RUPU] = { 0xff, R_8,U8_32,U4_12,J16_16,0,0 }, [INSTR_RIL_RI] = { 0x0f, R_8,I32_16,0,0,0,0 }, [INSTR_RIL_RP] = { 0x0f, R_8,J32_16,0,0,0,0 }, [INSTR_RIL_RU] = { 0x0f, R_8,U32_16,0,0,0,0 }, @@ -245,14 +268,18 @@ static const unsigned char formats[][7] = { [INSTR_RRF_F0FR] = { 0xff, F_24,F_16,R_28,0,0,0 }, [INSTR_RRF_FFRU] = { 0xff, F_24,F_16,R_28,U4_20,0,0 }, [INSTR_RRF_FUFF] = { 0xff, F_24,F_16,F_28,U4_20,0,0 }, + [INSTR_RRF_FUFF2] = { 0xff, F_24,F_28,F_16,U4_20,0,0 }, [INSTR_RRF_M0RR] = { 0xff, R_24,R_28,M_16,0,0,0 }, [INSTR_RRF_R0RR] = { 0xff, R_24,R_16,R_28,0,0,0 }, [INSTR_RRF_R0RR2] = { 0xff, R_24,R_28,R_16,0,0,0 }, + [INSTR_RRF_RMRR] = { 0xff, R_24,R_16,R_28,M_20,0,0 }, [INSTR_RRF_RURR] = { 0xff, R_24,R_28,R_16,U4_20,0,0 }, [INSTR_RRF_U0FF] = { 0xff, F_24,U4_16,F_28,0,0,0 }, [INSTR_RRF_U0RF] = { 0xff, R_24,U4_16,F_28,0,0,0 }, [INSTR_RRF_U0RR] = { 0xff, R_24,R_28,U4_16,0,0,0 }, [INSTR_RRF_UUFF] = { 0xff, F_24,U4_16,F_28,U4_20,0,0 }, + [INSTR_RRF_UUFR] = { 0xff, F_24,U4_16,R_28,U4_20,0,0 }, + [INSTR_RRF_UURF] = { 0xff, R_24,U4_16,F_28,U4_20,0,0 }, [INSTR_RRR_F0FF] = { 0xff, F_24,F_28,F_16,0,0,0 }, [INSTR_RRS_RRRDU] = { 0xff, R_8,R_12,U4_32,D_20,B_16,0 }, [INSTR_RR_FF] = { 0xff, F_8,F_12,0,0,0,0 }, @@ -264,12 +291,13 @@ static const unsigned char formats[][7] = { [INSTR_RSE_RRRD] = { 0xff, R_8,R_12,D_20,B_16,0,0 }, [INSTR_RSE_RURD] = { 0xff, R_8,U4_12,D_20,B_16,0,0 }, [INSTR_RSI_RRP] = { 0xff, R_8,R_12,J16_16,0,0,0 }, + [INSTR_RSL_LRDFU] = { 0xff, F_32,D_20,L4_8,B_16,U4_36,0 }, [INSTR_RSL_R0RD] = { 0xff, D_20,L4_8,B_16,0,0,0 }, [INSTR_RSY_AARD] = { 0xff, A_8,A_12,D20_20,B_16,0,0 }, [INSTR_RSY_CCRD] = { 0xff, C_8,C_12,D20_20,B_16,0,0 }, + [INSTR_RSY_RDRM] = { 0xff, R_8,D20_20,B_16,U4_12,0,0 }, [INSTR_RSY_RRRD] = { 0xff, R_8,R_12,D20_20,B_16,0,0 }, [INSTR_RSY_RURD] = { 0xff, R_8,U4_12,D20_20,B_16,0,0 }, - [INSTR_RSY_RDRM] = { 0xff, R_8,D20_20,B_16,U4_12,0,0 }, [INSTR_RS_AARD] = { 0xff, A_8,A_12,D_20,B_16,0,0 }, [INSTR_RS_CCRD] = { 0xff, C_8,C_12,D_20,B_16,0,0 }, [INSTR_RS_R0RD] = { 0xff, R_8,D_20,B_16,0,0,0 }, @@ -289,9 +317,10 @@ static const unsigned char formats[][7] = { [INSTR_SIY_IRD] = { 0xff, D20_20,B_16,I8_8,0,0,0 }, [INSTR_SIY_URD] = { 0xff, D20_20,B_16,U8_8,0,0,0 }, [INSTR_SI_URD] = { 0xff, D_20,B_16,U8_8,0,0,0 }, + [INSTR_SMI_U0RDP] = { 0xff, U4_8,J16_32,D_20,B_16,0,0 }, [INSTR_SSE_RDRD] = { 0xff, D_20,B_16,D_36,B_32,0,0 }, - [INSTR_SSF_RRDRD] = { 0x00, D_20,B_16,D_36,B_32,R_8,0 }, - [INSTR_SSF_RRDRD2]= { 0x00, R_8,D_20,B_16,D_36,B_32,0 }, + [INSTR_SSF_RRDRD] = { 0x0f, D_20,B_16,D_36,B_32,R_8,0 }, + [INSTR_SSF_RRDRD2]= { 0x0f, R_8,D_20,B_16,D_36,B_32,0 }, [INSTR_SS_L0RDRD] = { 0xff, D_20,L8_8,B_16,D_36,B_32,0 }, [INSTR_SS_LIRDRD] = { 0xff, D_20,L4_8,B_16,D_36,B_32,U4_12 }, [INSTR_SS_LLRDRD] = { 0xff, D_20,L4_8,B_16,D_36,L4_12,B_32 }, @@ -304,46 +333,157 @@ static const unsigned char formats[][7] = { enum { LONG_INSN_ALGHSIK, + LONG_INSN_ALHHHR, + LONG_INSN_ALHHLR, LONG_INSN_ALHSIK, + LONG_INSN_ALSIHN, + LONG_INSN_CDFBRA, + LONG_INSN_CDGBRA, + LONG_INSN_CDGTRA, + LONG_INSN_CDLFBR, + LONG_INSN_CDLFTR, + LONG_INSN_CDLGBR, + LONG_INSN_CDLGTR, + LONG_INSN_CEFBRA, + LONG_INSN_CEGBRA, + LONG_INSN_CELFBR, + LONG_INSN_CELGBR, + LONG_INSN_CFDBRA, + LONG_INSN_CFEBRA, + LONG_INSN_CFXBRA, + LONG_INSN_CGDBRA, + LONG_INSN_CGDTRA, + LONG_INSN_CGEBRA, + LONG_INSN_CGXBRA, + LONG_INSN_CGXTRA, + LONG_INSN_CLFDBR, + LONG_INSN_CLFDTR, + LONG_INSN_CLFEBR, LONG_INSN_CLFHSI, + LONG_INSN_CLFXBR, + LONG_INSN_CLFXTR, + LONG_INSN_CLGDBR, + LONG_INSN_CLGDTR, + LONG_INSN_CLGEBR, LONG_INSN_CLGFRL, LONG_INSN_CLGHRL, LONG_INSN_CLGHSI, + LONG_INSN_CLGXBR, + LONG_INSN_CLGXTR, LONG_INSN_CLHHSI, + LONG_INSN_CXFBRA, + LONG_INSN_CXGBRA, + LONG_INSN_CXGTRA, + LONG_INSN_CXLFBR, + LONG_INSN_CXLFTR, + LONG_INSN_CXLGBR, + LONG_INSN_CXLGTR, + LONG_INSN_FIDBRA, + LONG_INSN_FIEBRA, + LONG_INSN_FIXBRA, + LONG_INSN_LDXBRA, + LONG_INSN_LEDBRA, + LONG_INSN_LEXBRA, + LONG_INSN_LLGFAT, LONG_INSN_LLGFRL, LONG_INSN_LLGHRL, + LONG_INSN_LLGTAT, LONG_INSN_POPCNT, + LONG_INSN_RIEMIT, + LONG_INSN_RINEXT, + LONG_INSN_RISBGN, LONG_INSN_RISBHG, LONG_INSN_RISBLG, - LONG_INSN_RINEXT, - LONG_INSN_RIEMIT, + LONG_INSN_SLHHHR, + LONG_INSN_SLHHLR, LONG_INSN_TABORT, LONG_INSN_TBEGIN, LONG_INSN_TBEGINC, + LONG_INSN_PCISTG, + LONG_INSN_MPCIFC, + LONG_INSN_STPCIFC, + LONG_INSN_PCISTB, }; static char *long_insn_name[] = { [LONG_INSN_ALGHSIK] = "alghsik", + [LONG_INSN_ALHHHR] = "alhhhr", + [LONG_INSN_ALHHLR] = "alhhlr", [LONG_INSN_ALHSIK] = "alhsik", + [LONG_INSN_ALSIHN] = "alsihn", + [LONG_INSN_CDFBRA] = "cdfbra", + [LONG_INSN_CDGBRA] = "cdgbra", + [LONG_INSN_CDGTRA] = "cdgtra", + [LONG_INSN_CDLFBR] = "cdlfbr", + [LONG_INSN_CDLFTR] = "cdlftr", + [LONG_INSN_CDLGBR] = "cdlgbr", + [LONG_INSN_CDLGTR] = "cdlgtr", + [LONG_INSN_CEFBRA] = "cefbra", + [LONG_INSN_CEGBRA] = "cegbra", + [LONG_INSN_CELFBR] = "celfbr", + [LONG_INSN_CELGBR] = "celgbr", + [LONG_INSN_CFDBRA] = "cfdbra", + [LONG_INSN_CFEBRA] = "cfebra", + [LONG_INSN_CFXBRA] = "cfxbra", + [LONG_INSN_CGDBRA] = "cgdbra", + [LONG_INSN_CGDTRA] = "cgdtra", + [LONG_INSN_CGEBRA] = "cgebra", + [LONG_INSN_CGXBRA] = "cgxbra", + [LONG_INSN_CGXTRA] = "cgxtra", + [LONG_INSN_CLFDBR] = "clfdbr", + [LONG_INSN_CLFDTR] = "clfdtr", + [LONG_INSN_CLFEBR] = "clfebr", [LONG_INSN_CLFHSI] = "clfhsi", + [LONG_INSN_CLFXBR] = "clfxbr", + [LONG_INSN_CLFXTR] = "clfxtr", + [LONG_INSN_CLGDBR] = "clgdbr", + [LONG_INSN_CLGDTR] = "clgdtr", + [LONG_INSN_CLGEBR] = "clgebr", [LONG_INSN_CLGFRL] = "clgfrl", [LONG_INSN_CLGHRL] = "clghrl", [LONG_INSN_CLGHSI] = "clghsi", + [LONG_INSN_CLGXBR] = "clgxbr", + [LONG_INSN_CLGXTR] = "clgxtr", [LONG_INSN_CLHHSI] = "clhhsi", + [LONG_INSN_CXFBRA] = "cxfbra", + [LONG_INSN_CXGBRA] = "cxgbra", + [LONG_INSN_CXGTRA] = "cxgtra", + [LONG_INSN_CXLFBR] = "cxlfbr", + [LONG_INSN_CXLFTR] = "cxlftr", + [LONG_INSN_CXLGBR] = "cxlgbr", + [LONG_INSN_CXLGTR] = "cxlgtr", + [LONG_INSN_FIDBRA] = "fidbra", + [LONG_INSN_FIEBRA] = "fiebra", + [LONG_INSN_FIXBRA] = "fixbra", + [LONG_INSN_LDXBRA] = "ldxbra", + [LONG_INSN_LEDBRA] = "ledbra", + [LONG_INSN_LEXBRA] = "lexbra", + [LONG_INSN_LLGFAT] = "llgfat", [LONG_INSN_LLGFRL] = "llgfrl", [LONG_INSN_LLGHRL] = "llghrl", + [LONG_INSN_LLGTAT] = "llgtat", [LONG_INSN_POPCNT] = "popcnt", + [LONG_INSN_RIEMIT] = "riemit", + [LONG_INSN_RINEXT] = "rinext", + [LONG_INSN_RISBGN] = "risbgn", [LONG_INSN_RISBHG] = "risbhg", [LONG_INSN_RISBLG] = "risblg", - [LONG_INSN_RINEXT] = "rinext", - [LONG_INSN_RIEMIT] = "riemit", + [LONG_INSN_SLHHHR] = "slhhhr", + [LONG_INSN_SLHHLR] = "slhhlr", [LONG_INSN_TABORT] = "tabort", [LONG_INSN_TBEGIN] = "tbegin", [LONG_INSN_TBEGINC] = "tbeginc", + [LONG_INSN_PCISTG] = "pcistg", + [LONG_INSN_MPCIFC] = "mpcifc", + [LONG_INSN_STPCIFC] = "stpcifc", + [LONG_INSN_PCISTB] = "pcistb", }; static struct insn opcode[] = { #ifdef CONFIG_64BIT + { "bprp", 0xc5, INSTR_MII_UPI }, + { "bpp", 0xc7, INSTR_SMI_U0RDP }, + { "trtr", 0xd0, INSTR_SS_L0RDRD }, { "lmd", 0xef, INSTR_SS_RRRDRD3 }, #endif { "spm", 0x04, INSTR_RR_R0 }, @@ -378,7 +518,6 @@ static struct insn opcode[] = { { "lcdr", 0x23, INSTR_RR_FF }, { "hdr", 0x24, INSTR_RR_FF }, { "ldxr", 0x25, INSTR_RR_FF }, - { "lrdr", 0x25, INSTR_RR_FF }, { "mxr", 0x26, INSTR_RR_FF }, { "mxdr", 0x27, INSTR_RR_FF }, { "ldr", 0x28, INSTR_RR_FF }, @@ -395,7 +534,6 @@ static struct insn opcode[] = { { "lcer", 0x33, INSTR_RR_FF }, { "her", 0x34, INSTR_RR_FF }, { "ledr", 0x35, INSTR_RR_FF }, - { "lrer", 0x35, INSTR_RR_FF }, { "axr", 0x36, INSTR_RR_FF }, { "sxr", 0x37, INSTR_RR_FF }, { "ler", 0x38, INSTR_RR_FF }, @@ -403,7 +541,6 @@ static struct insn opcode[] = { { "aer", 0x3a, INSTR_RR_FF }, { "ser", 0x3b, INSTR_RR_FF }, { "mder", 0x3c, INSTR_RR_FF }, - { "mer", 0x3c, INSTR_RR_FF }, { "der", 0x3d, INSTR_RR_FF }, { "aur", 0x3e, INSTR_RR_FF }, { "sur", 0x3f, INSTR_RR_FF }, @@ -454,7 +591,6 @@ static struct insn opcode[] = { { "ae", 0x7a, INSTR_RX_FRRD }, { "se", 0x7b, INSTR_RX_FRRD }, { "mde", 0x7c, INSTR_RX_FRRD }, - { "me", 0x7c, INSTR_RX_FRRD }, { "de", 0x7d, INSTR_RX_FRRD }, { "au", 0x7e, INSTR_RX_FRRD }, { "su", 0x7f, INSTR_RX_FRRD }, @@ -534,9 +670,9 @@ static struct insn opcode[] = { static struct insn opcode_01[] = { #ifdef CONFIG_64BIT - { "sam64", 0x0e, INSTR_E }, - { "pfpo", 0x0a, INSTR_E }, { "ptff", 0x04, INSTR_E }, + { "pfpo", 0x0a, INSTR_E }, + { "sam64", 0x0e, INSTR_E }, #endif { "pr", 0x01, INSTR_E }, { "upt", 0x02, INSTR_E }, @@ -605,19 +741,28 @@ static struct insn opcode_aa[] = { static struct insn opcode_b2[] = { #ifdef CONFIG_64BIT - { "sske", 0x2b, INSTR_RRF_M0RR }, { "stckf", 0x7c, INSTR_S_RD }, - { "cu21", 0xa6, INSTR_RRF_M0RR }, - { "cuutf", 0xa6, INSTR_RRF_M0RR }, - { "cu12", 0xa7, INSTR_RRF_M0RR }, - { "cutfu", 0xa7, INSTR_RRF_M0RR }, + { "lpp", 0x80, INSTR_S_RD }, + { "lcctl", 0x84, INSTR_S_RD }, + { "lpctl", 0x85, INSTR_S_RD }, + { "qsi", 0x86, INSTR_S_RD }, + { "lsctl", 0x87, INSTR_S_RD }, + { "qctri", 0x8e, INSTR_S_RD }, { "stfle", 0xb0, INSTR_S_RD }, { "lpswe", 0xb2, INSTR_S_RD }, + { "srnmb", 0xb8, INSTR_S_RD }, { "srnmt", 0xb9, INSTR_S_RD }, { "lfas", 0xbd, INSTR_S_RD }, - { "etndg", 0xec, INSTR_RRE_R0 }, + { "scctr", 0xe0, INSTR_RRE_RR }, + { "spctr", 0xe1, INSTR_RRE_RR }, + { "ecctr", 0xe4, INSTR_RRE_RR }, + { "epctr", 0xe5, INSTR_RRE_RR }, + { "ppa", 0xe8, INSTR_RRF_U0RR }, + { "etnd", 0xec, INSTR_RRE_R0 }, + { "ecpga", 0xed, INSTR_RRE_RR }, + { "tend", 0xf8, INSTR_S_00 }, + { "niai", 0xfa, INSTR_IE_UU }, { { 0, LONG_INSN_TABORT }, 0xfc, INSTR_S_RD }, - { "tend", 0xf8, INSTR_S_RD }, #endif { "stidp", 0x02, INSTR_S_RD }, { "sck", 0x04, INSTR_S_RD }, @@ -635,8 +780,8 @@ static struct insn opcode_b2[] = { { "sie", 0x14, INSTR_S_RD }, { "pc", 0x18, INSTR_S_RD }, { "sac", 0x19, INSTR_S_RD }, - { "servc", 0x20, INSTR_RRE_RR }, { "cfc", 0x1a, INSTR_S_RD }, + { "servc", 0x20, INSTR_RRE_RR }, { "ipte", 0x21, INSTR_RRE_RR }, { "ipm", 0x22, INSTR_RRE_R0 }, { "ivsk", 0x23, INSTR_RRE_RR }, @@ -647,9 +792,9 @@ static struct insn opcode_b2[] = { { "pt", 0x28, INSTR_RRE_RR }, { "iske", 0x29, INSTR_RRE_RR }, { "rrbe", 0x2a, INSTR_RRE_RR }, - { "sske", 0x2b, INSTR_RRE_RR }, + { "sske", 0x2b, INSTR_RRF_M0RR }, { "tb", 0x2c, INSTR_RRE_0R }, - { "dxr", 0x2d, INSTR_RRE_F0 }, + { "dxr", 0x2d, INSTR_RRE_FF }, { "pgin", 0x2e, INSTR_RRE_RR }, { "pgout", 0x2f, INSTR_RRE_RR }, { "csch", 0x30, INSTR_S_00 }, @@ -667,8 +812,8 @@ static struct insn opcode_b2[] = { { "schm", 0x3c, INSTR_S_00 }, { "bakr", 0x40, INSTR_RRE_RR }, { "cksm", 0x41, INSTR_RRE_RR }, - { "sqdr", 0x44, INSTR_RRE_F0 }, - { "sqer", 0x45, INSTR_RRE_F0 }, + { "sqdr", 0x44, INSTR_RRE_FF }, + { "sqer", 0x45, INSTR_RRE_FF }, { "stura", 0x46, INSTR_RRE_RR }, { "msta", 0x47, INSTR_RRE_R0 }, { "palb", 0x48, INSTR_RRE_00 }, @@ -694,14 +839,14 @@ static struct insn opcode_b2[] = { { "rp", 0x77, INSTR_S_RD }, { "stcke", 0x78, INSTR_S_RD }, { "sacf", 0x79, INSTR_S_RD }, - { "spp", 0x80, INSTR_S_RD }, { "stsi", 0x7d, INSTR_S_RD }, + { "spp", 0x80, INSTR_S_RD }, { "srnm", 0x99, INSTR_S_RD }, { "stfpc", 0x9c, INSTR_S_RD }, { "lfpc", 0x9d, INSTR_S_RD }, { "tre", 0xa5, INSTR_RRE_RR }, - { "cuutf", 0xa6, INSTR_RRE_RR }, - { "cutfu", 0xa7, INSTR_RRE_RR }, + { "cuutf", 0xa6, INSTR_RRF_M0RR }, + { "cutfu", 0xa7, INSTR_RRF_M0RR }, { "stfl", 0xb1, INSTR_S_RD }, { "trap4", 0xff, INSTR_S_RD }, { "", 0, INSTR_INVALID } @@ -715,72 +860,87 @@ static struct insn opcode_b3[] = { { "myr", 0x3b, INSTR_RRF_F0FF }, { "mayhr", 0x3c, INSTR_RRF_F0FF }, { "myhr", 0x3d, INSTR_RRF_F0FF }, - { "cegbr", 0xa4, INSTR_RRE_RR }, - { "cdgbr", 0xa5, INSTR_RRE_RR }, - { "cxgbr", 0xa6, INSTR_RRE_RR }, - { "cgebr", 0xa8, INSTR_RRF_U0RF }, - { "cgdbr", 0xa9, INSTR_RRF_U0RF }, - { "cgxbr", 0xaa, INSTR_RRF_U0RF }, - { "cfer", 0xb8, INSTR_RRF_U0RF }, - { "cfdr", 0xb9, INSTR_RRF_U0RF }, - { "cfxr", 0xba, INSTR_RRF_U0RF }, - { "cegr", 0xc4, INSTR_RRE_RR }, - { "cdgr", 0xc5, INSTR_RRE_RR }, - { "cxgr", 0xc6, INSTR_RRE_RR }, - { "cger", 0xc8, INSTR_RRF_U0RF }, - { "cgdr", 0xc9, INSTR_RRF_U0RF }, - { "cgxr", 0xca, INSTR_RRF_U0RF }, { "lpdfr", 0x70, INSTR_RRE_FF }, { "lndfr", 0x71, INSTR_RRE_FF }, { "cpsdr", 0x72, INSTR_RRF_F0FF2 }, { "lcdfr", 0x73, INSTR_RRE_FF }, + { "sfasr", 0x85, INSTR_RRE_R0 }, + { { 0, LONG_INSN_CELFBR }, 0x90, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CDLFBR }, 0x91, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CXLFBR }, 0x92, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CEFBRA }, 0x94, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CDFBRA }, 0x95, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CXFBRA }, 0x96, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CFEBRA }, 0x98, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CFDBRA }, 0x99, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CFXBRA }, 0x9a, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CLFEBR }, 0x9c, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CLFDBR }, 0x9d, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CLFXBR }, 0x9e, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CELGBR }, 0xa0, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CDLGBR }, 0xa1, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CXLGBR }, 0xa2, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CEGBRA }, 0xa4, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CDGBRA }, 0xa5, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CXGBRA }, 0xa6, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CGEBRA }, 0xa8, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CGDBRA }, 0xa9, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CGXBRA }, 0xaa, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CLGEBR }, 0xac, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CLGDBR }, 0xad, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CLGXBR }, 0xae, INSTR_RRF_UUFR }, { "ldgr", 0xc1, INSTR_RRE_FR }, + { "cegr", 0xc4, INSTR_RRE_FR }, + { "cdgr", 0xc5, INSTR_RRE_FR }, + { "cxgr", 0xc6, INSTR_RRE_FR }, + { "cger", 0xc8, INSTR_RRF_U0RF }, + { "cgdr", 0xc9, INSTR_RRF_U0RF }, + { "cgxr", 0xca, INSTR_RRF_U0RF }, { "lgdr", 0xcd, INSTR_RRE_RF }, - { "adtr", 0xd2, INSTR_RRR_F0FF }, - { "axtr", 0xda, INSTR_RRR_F0FF }, - { "cdtr", 0xe4, INSTR_RRE_FF }, - { "cxtr", 0xec, INSTR_RRE_FF }, + { "mdtra", 0xd0, INSTR_RRF_FUFF2 }, + { "ddtra", 0xd1, INSTR_RRF_FUFF2 }, + { "adtra", 0xd2, INSTR_RRF_FUFF2 }, + { "sdtra", 0xd3, INSTR_RRF_FUFF2 }, + { "ldetr", 0xd4, INSTR_RRF_0UFF }, + { "ledtr", 0xd5, INSTR_RRF_UUFF }, + { "ltdtr", 0xd6, INSTR_RRE_FF }, + { "fidtr", 0xd7, INSTR_RRF_UUFF }, + { "mxtra", 0xd8, INSTR_RRF_FUFF2 }, + { "dxtra", 0xd9, INSTR_RRF_FUFF2 }, + { "axtra", 0xda, INSTR_RRF_FUFF2 }, + { "sxtra", 0xdb, INSTR_RRF_FUFF2 }, + { "lxdtr", 0xdc, INSTR_RRF_0UFF }, + { "ldxtr", 0xdd, INSTR_RRF_UUFF }, + { "ltxtr", 0xde, INSTR_RRE_FF }, + { "fixtr", 0xdf, INSTR_RRF_UUFF }, { "kdtr", 0xe0, INSTR_RRE_FF }, - { "kxtr", 0xe8, INSTR_RRE_FF }, - { "cedtr", 0xf4, INSTR_RRE_FF }, - { "cextr", 0xfc, INSTR_RRE_FF }, - { "cdgtr", 0xf1, INSTR_RRE_FR }, - { "cxgtr", 0xf9, INSTR_RRE_FR }, - { "cdstr", 0xf3, INSTR_RRE_FR }, - { "cxstr", 0xfb, INSTR_RRE_FR }, - { "cdutr", 0xf2, INSTR_RRE_FR }, - { "cxutr", 0xfa, INSTR_RRE_FR }, - { "cgdtr", 0xe1, INSTR_RRF_U0RF }, - { "cgxtr", 0xe9, INSTR_RRF_U0RF }, - { "csdtr", 0xe3, INSTR_RRE_RF }, - { "csxtr", 0xeb, INSTR_RRE_RF }, + { { 0, LONG_INSN_CGDTRA }, 0xe1, INSTR_RRF_UURF }, { "cudtr", 0xe2, INSTR_RRE_RF }, - { "cuxtr", 0xea, INSTR_RRE_RF }, - { "ddtr", 0xd1, INSTR_RRR_F0FF }, - { "dxtr", 0xd9, INSTR_RRR_F0FF }, + { "csdtr", 0xe3, INSTR_RRE_RF }, + { "cdtr", 0xe4, INSTR_RRE_FF }, { "eedtr", 0xe5, INSTR_RRE_RF }, - { "eextr", 0xed, INSTR_RRE_RF }, { "esdtr", 0xe7, INSTR_RRE_RF }, + { "kxtr", 0xe8, INSTR_RRE_FF }, + { { 0, LONG_INSN_CGXTRA }, 0xe9, INSTR_RRF_UUFR }, + { "cuxtr", 0xea, INSTR_RRE_RF }, + { "csxtr", 0xeb, INSTR_RRE_RF }, + { "cxtr", 0xec, INSTR_RRE_FF }, + { "eextr", 0xed, INSTR_RRE_RF }, { "esxtr", 0xef, INSTR_RRE_RF }, - { "iedtr", 0xf6, INSTR_RRF_F0FR }, - { "iextr", 0xfe, INSTR_RRF_F0FR }, - { "ltdtr", 0xd6, INSTR_RRE_FF }, - { "ltxtr", 0xde, INSTR_RRE_FF }, - { "fidtr", 0xd7, INSTR_RRF_UUFF }, - { "fixtr", 0xdf, INSTR_RRF_UUFF }, - { "ldetr", 0xd4, INSTR_RRF_0UFF }, - { "lxdtr", 0xdc, INSTR_RRF_0UFF }, - { "ledtr", 0xd5, INSTR_RRF_UUFF }, - { "ldxtr", 0xdd, INSTR_RRF_UUFF }, - { "mdtr", 0xd0, INSTR_RRR_F0FF }, - { "mxtr", 0xd8, INSTR_RRR_F0FF }, + { { 0, LONG_INSN_CDGTRA }, 0xf1, INSTR_RRF_UUFR }, + { "cdutr", 0xf2, INSTR_RRE_FR }, + { "cdstr", 0xf3, INSTR_RRE_FR }, + { "cedtr", 0xf4, INSTR_RRE_FF }, { "qadtr", 0xf5, INSTR_RRF_FUFF }, - { "qaxtr", 0xfd, INSTR_RRF_FUFF }, + { "iedtr", 0xf6, INSTR_RRF_F0FR }, { "rrdtr", 0xf7, INSTR_RRF_FFRU }, + { { 0, LONG_INSN_CXGTRA }, 0xf9, INSTR_RRF_UURF }, + { "cxutr", 0xfa, INSTR_RRE_FR }, + { "cxstr", 0xfb, INSTR_RRE_FR }, + { "cextr", 0xfc, INSTR_RRE_FF }, + { "qaxtr", 0xfd, INSTR_RRF_FUFF }, + { "iextr", 0xfe, INSTR_RRF_F0FR }, { "rrxtr", 0xff, INSTR_RRF_FFRU }, - { "sfasr", 0x85, INSTR_RRE_R0 }, - { "sdtr", 0xd3, INSTR_RRR_F0FF }, - { "sxtr", 0xdb, INSTR_RRR_F0FF }, #endif { "lpebr", 0x00, INSTR_RRE_FF }, { "lnebr", 0x01, INSTR_RRE_FF }, @@ -827,10 +987,10 @@ static struct insn opcode_b3[] = { { "lnxbr", 0x41, INSTR_RRE_FF }, { "ltxbr", 0x42, INSTR_RRE_FF }, { "lcxbr", 0x43, INSTR_RRE_FF }, - { "ledbr", 0x44, INSTR_RRE_FF }, - { "ldxbr", 0x45, INSTR_RRE_FF }, - { "lexbr", 0x46, INSTR_RRE_FF }, - { "fixbr", 0x47, INSTR_RRF_U0FF }, + { { 0, LONG_INSN_LEDBRA }, 0x44, INSTR_RRF_UUFF }, + { { 0, LONG_INSN_LDXBRA }, 0x45, INSTR_RRF_UUFF }, + { { 0, LONG_INSN_LEXBRA }, 0x46, INSTR_RRF_UUFF }, + { { 0, LONG_INSN_FIXBRA }, 0x47, INSTR_RRF_UUFF }, { "kxbr", 0x48, INSTR_RRE_FF }, { "cxbr", 0x49, INSTR_RRE_FF }, { "axbr", 0x4a, INSTR_RRE_FF }, @@ -840,24 +1000,24 @@ static struct insn opcode_b3[] = { { "tbedr", 0x50, INSTR_RRF_U0FF }, { "tbdr", 0x51, INSTR_RRF_U0FF }, { "diebr", 0x53, INSTR_RRF_FUFF }, - { "fiebr", 0x57, INSTR_RRF_U0FF }, - { "thder", 0x58, INSTR_RRE_RR }, - { "thdr", 0x59, INSTR_RRE_RR }, + { { 0, LONG_INSN_FIEBRA }, 0x57, INSTR_RRF_UUFF }, + { "thder", 0x58, INSTR_RRE_FF }, + { "thdr", 0x59, INSTR_RRE_FF }, { "didbr", 0x5b, INSTR_RRF_FUFF }, - { "fidbr", 0x5f, INSTR_RRF_U0FF }, + { { 0, LONG_INSN_FIDBRA }, 0x5f, INSTR_RRF_UUFF }, { "lpxr", 0x60, INSTR_RRE_FF }, { "lnxr", 0x61, INSTR_RRE_FF }, { "ltxr", 0x62, INSTR_RRE_FF }, { "lcxr", 0x63, INSTR_RRE_FF }, - { "lxr", 0x65, INSTR_RRE_RR }, + { "lxr", 0x65, INSTR_RRE_FF }, { "lexr", 0x66, INSTR_RRE_FF }, - { "fixr", 0x67, INSTR_RRF_U0FF }, + { "fixr", 0x67, INSTR_RRE_FF }, { "cxr", 0x69, INSTR_RRE_FF }, - { "lzer", 0x74, INSTR_RRE_R0 }, - { "lzdr", 0x75, INSTR_RRE_R0 }, - { "lzxr", 0x76, INSTR_RRE_R0 }, - { "fier", 0x77, INSTR_RRF_U0FF }, - { "fidr", 0x7f, INSTR_RRF_U0FF }, + { "lzer", 0x74, INSTR_RRE_F0 }, + { "lzdr", 0x75, INSTR_RRE_F0 }, + { "lzxr", 0x76, INSTR_RRE_F0 }, + { "fier", 0x77, INSTR_RRE_FF }, + { "fidr", 0x7f, INSTR_RRE_FF }, { "sfpc", 0x84, INSTR_RRE_RR_OPT }, { "efpc", 0x8c, INSTR_RRE_RR_OPT }, { "cefbr", 0x94, INSTR_RRE_RF }, @@ -866,9 +1026,12 @@ static struct insn opcode_b3[] = { { "cfebr", 0x98, INSTR_RRF_U0RF }, { "cfdbr", 0x99, INSTR_RRF_U0RF }, { "cfxbr", 0x9a, INSTR_RRF_U0RF }, - { "cefr", 0xb4, INSTR_RRE_RF }, - { "cdfr", 0xb5, INSTR_RRE_RF }, - { "cxfr", 0xb6, INSTR_RRE_RF }, + { "cefr", 0xb4, INSTR_RRE_FR }, + { "cdfr", 0xb5, INSTR_RRE_FR }, + { "cxfr", 0xb6, INSTR_RRE_FR }, + { "cfer", 0xb8, INSTR_RRF_U0RF }, + { "cfdr", 0xb9, INSTR_RRF_U0RF }, + { "cfxr", 0xba, INSTR_RRF_U0RF }, { "", 0, INSTR_INVALID } }; @@ -910,7 +1073,23 @@ static struct insn opcode_b9[] = { { "lhr", 0x27, INSTR_RRE_RR }, { "cgfr", 0x30, INSTR_RRE_RR }, { "clgfr", 0x31, INSTR_RRE_RR }, + { "cfdtr", 0x41, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CLGDTR }, 0x42, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CLFDTR }, 0x43, INSTR_RRF_UURF }, { "bctgr", 0x46, INSTR_RRE_RR }, + { "cfxtr", 0x49, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CLGXTR }, 0x4a, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CLFXTR }, 0x4b, INSTR_RRF_UUFR }, + { "cdftr", 0x51, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CDLGTR }, 0x52, INSTR_RRF_UUFR }, + { { 0, LONG_INSN_CDLFTR }, 0x53, INSTR_RRF_UUFR }, + { "cxftr", 0x59, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CXLGTR }, 0x5a, INSTR_RRF_UURF }, + { { 0, LONG_INSN_CXLFTR }, 0x5b, INSTR_RRF_UUFR }, + { "cgrt", 0x60, INSTR_RRF_U0RR }, + { "clgrt", 0x61, INSTR_RRF_U0RR }, + { "crt", 0x72, INSTR_RRF_U0RR }, + { "clrt", 0x73, INSTR_RRF_U0RR }, { "ngr", 0x80, INSTR_RRE_RR }, { "ogr", 0x81, INSTR_RRE_RR }, { "xgr", 0x82, INSTR_RRE_RR }, @@ -923,32 +1102,34 @@ static struct insn opcode_b9[] = { { "slbgr", 0x89, INSTR_RRE_RR }, { "cspg", 0x8a, INSTR_RRE_RR }, { "idte", 0x8e, INSTR_RRF_R0RR }, + { "crdte", 0x8f, INSTR_RRF_RMRR }, { "llcr", 0x94, INSTR_RRE_RR }, { "llhr", 0x95, INSTR_RRE_RR }, { "esea", 0x9d, INSTR_RRE_R0 }, + { "ptf", 0xa2, INSTR_RRE_R0 }, { "lptea", 0xaa, INSTR_RRF_RURR }, + { "rrbm", 0xae, INSTR_RRE_RR }, + { "pfmf", 0xaf, INSTR_RRE_RR }, { "cu14", 0xb0, INSTR_RRF_M0RR }, { "cu24", 0xb1, INSTR_RRF_M0RR }, - { "cu41", 0xb2, INSTR_RRF_M0RR }, - { "cu42", 0xb3, INSTR_RRF_M0RR }, - { "crt", 0x72, INSTR_RRF_U0RR }, - { "cgrt", 0x60, INSTR_RRF_U0RR }, - { "clrt", 0x73, INSTR_RRF_U0RR }, - { "clgrt", 0x61, INSTR_RRF_U0RR }, - { "ptf", 0xa2, INSTR_RRE_R0 }, - { "pfmf", 0xaf, INSTR_RRE_RR }, - { "trte", 0xbf, INSTR_RRF_M0RR }, + { "cu41", 0xb2, INSTR_RRE_RR }, + { "cu42", 0xb3, INSTR_RRE_RR }, { "trtre", 0xbd, INSTR_RRF_M0RR }, + { "srstu", 0xbe, INSTR_RRE_RR }, + { "trte", 0xbf, INSTR_RRF_M0RR }, { "ahhhr", 0xc8, INSTR_RRF_R0RR2 }, { "shhhr", 0xc9, INSTR_RRF_R0RR2 }, - { "alhhh", 0xca, INSTR_RRF_R0RR2 }, - { "alhhl", 0xca, INSTR_RRF_R0RR2 }, - { "slhhh", 0xcb, INSTR_RRF_R0RR2 }, - { "chhr ", 0xcd, INSTR_RRE_RR }, + { { 0, LONG_INSN_ALHHHR }, 0xca, INSTR_RRF_R0RR2 }, + { { 0, LONG_INSN_SLHHHR }, 0xcb, INSTR_RRF_R0RR2 }, + { "chhr", 0xcd, INSTR_RRE_RR }, { "clhhr", 0xcf, INSTR_RRE_RR }, + { { 0, LONG_INSN_PCISTG }, 0xd0, INSTR_RRE_RR }, + { "pcilg", 0xd2, INSTR_RRE_RR }, + { "rpcit", 0xd3, INSTR_RRE_RR }, { "ahhlr", 0xd8, INSTR_RRF_R0RR2 }, { "shhlr", 0xd9, INSTR_RRF_R0RR2 }, - { "slhhl", 0xdb, INSTR_RRF_R0RR2 }, + { { 0, LONG_INSN_ALHHLR }, 0xda, INSTR_RRF_R0RR2 }, + { { 0, LONG_INSN_SLHHLR }, 0xdb, INSTR_RRF_R0RR2 }, { "chlr", 0xdd, INSTR_RRE_RR }, { "clhlr", 0xdf, INSTR_RRE_RR }, { { 0, LONG_INSN_POPCNT }, 0xe1, INSTR_RRE_RR }, @@ -976,13 +1157,9 @@ static struct insn opcode_b9[] = { { "kimd", 0x3e, INSTR_RRE_RR }, { "klmd", 0x3f, INSTR_RRE_RR }, { "epsw", 0x8d, INSTR_RRE_RR }, - { "trtt", 0x90, INSTR_RRE_RR }, { "trtt", 0x90, INSTR_RRF_M0RR }, - { "trto", 0x91, INSTR_RRE_RR }, { "trto", 0x91, INSTR_RRF_M0RR }, - { "trot", 0x92, INSTR_RRE_RR }, { "trot", 0x92, INSTR_RRF_M0RR }, - { "troo", 0x93, INSTR_RRE_RR }, { "troo", 0x93, INSTR_RRF_M0RR }, { "mlr", 0x96, INSTR_RRE_RR }, { "dlr", 0x97, INSTR_RRE_RR }, @@ -1013,6 +1190,8 @@ static struct insn opcode_c0[] = { static struct insn opcode_c2[] = { #ifdef CONFIG_64BIT + { "msgfi", 0x00, INSTR_RIL_RI }, + { "msfi", 0x01, INSTR_RIL_RI }, { "slgfi", 0x04, INSTR_RIL_RU }, { "slfi", 0x05, INSTR_RIL_RU }, { "agfi", 0x08, INSTR_RIL_RI }, @@ -1023,43 +1202,41 @@ static struct insn opcode_c2[] = { { "cfi", 0x0d, INSTR_RIL_RI }, { "clgfi", 0x0e, INSTR_RIL_RU }, { "clfi", 0x0f, INSTR_RIL_RU }, - { "msfi", 0x01, INSTR_RIL_RI }, - { "msgfi", 0x00, INSTR_RIL_RI }, #endif { "", 0, INSTR_INVALID } }; static struct insn opcode_c4[] = { #ifdef CONFIG_64BIT - { "lrl", 0x0d, INSTR_RIL_RP }, + { "llhrl", 0x02, INSTR_RIL_RP }, + { "lghrl", 0x04, INSTR_RIL_RP }, + { "lhrl", 0x05, INSTR_RIL_RP }, + { { 0, LONG_INSN_LLGHRL }, 0x06, INSTR_RIL_RP }, + { "sthrl", 0x07, INSTR_RIL_RP }, { "lgrl", 0x08, INSTR_RIL_RP }, + { "stgrl", 0x0b, INSTR_RIL_RP }, { "lgfrl", 0x0c, INSTR_RIL_RP }, - { "lhrl", 0x05, INSTR_RIL_RP }, - { "lghrl", 0x04, INSTR_RIL_RP }, + { "lrl", 0x0d, INSTR_RIL_RP }, { { 0, LONG_INSN_LLGFRL }, 0x0e, INSTR_RIL_RP }, - { "llhrl", 0x02, INSTR_RIL_RP }, - { { 0, LONG_INSN_LLGHRL }, 0x06, INSTR_RIL_RP }, { "strl", 0x0f, INSTR_RIL_RP }, - { "stgrl", 0x0b, INSTR_RIL_RP }, - { "sthrl", 0x07, INSTR_RIL_RP }, #endif { "", 0, INSTR_INVALID } }; static struct insn opcode_c6[] = { #ifdef CONFIG_64BIT - { "crl", 0x0d, INSTR_RIL_RP }, - { "cgrl", 0x08, INSTR_RIL_RP }, - { "cgfrl", 0x0c, INSTR_RIL_RP }, - { "chrl", 0x05, INSTR_RIL_RP }, + { "exrl", 0x00, INSTR_RIL_RP }, + { "pfdrl", 0x02, INSTR_RIL_UP }, { "cghrl", 0x04, INSTR_RIL_RP }, - { "clrl", 0x0f, INSTR_RIL_RP }, + { "chrl", 0x05, INSTR_RIL_RP }, + { { 0, LONG_INSN_CLGHRL }, 0x06, INSTR_RIL_RP }, + { "clhrl", 0x07, INSTR_RIL_RP }, + { "cgrl", 0x08, INSTR_RIL_RP }, { "clgrl", 0x0a, INSTR_RIL_RP }, + { "cgfrl", 0x0c, INSTR_RIL_RP }, + { "crl", 0x0d, INSTR_RIL_RP }, { { 0, LONG_INSN_CLGFRL }, 0x0e, INSTR_RIL_RP }, - { "clhrl", 0x07, INSTR_RIL_RP }, - { { 0, LONG_INSN_CLGHRL }, 0x06, INSTR_RIL_RP }, - { "pfdrl", 0x02, INSTR_RIL_UP }, - { "exrl", 0x00, INSTR_RIL_RP }, + { "clrl", 0x0f, INSTR_RIL_RP }, #endif { "", 0, INSTR_INVALID } }; @@ -1070,7 +1247,7 @@ static struct insn opcode_c8[] = { { "ectg", 0x01, INSTR_SSF_RRDRD }, { "csst", 0x02, INSTR_SSF_RRDRD }, { "lpd", 0x04, INSTR_SSF_RRDRD2 }, - { "lpdg ", 0x05, INSTR_SSF_RRDRD2 }, + { "lpdg", 0x05, INSTR_SSF_RRDRD2 }, #endif { "", 0, INSTR_INVALID } }; @@ -1080,9 +1257,9 @@ static struct insn opcode_cc[] = { { "brcth", 0x06, INSTR_RIL_RP }, { "aih", 0x08, INSTR_RIL_RI }, { "alsih", 0x0a, INSTR_RIL_RI }, - { "alsih", 0x0b, INSTR_RIL_RI }, + { { 0, LONG_INSN_ALSIHN }, 0x0b, INSTR_RIL_RI }, { "cih", 0x0d, INSTR_RIL_RI }, - { "clih ", 0x0f, INSTR_RIL_RI }, + { "clih", 0x0f, INSTR_RIL_RI }, #endif { "", 0, INSTR_INVALID } }; @@ -1116,11 +1293,15 @@ static struct insn opcode_e3[] = { { "cg", 0x20, INSTR_RXY_RRRD }, { "clg", 0x21, INSTR_RXY_RRRD }, { "stg", 0x24, INSTR_RXY_RRRD }, + { "ntstg", 0x25, INSTR_RXY_RRRD }, { "cvdy", 0x26, INSTR_RXY_RRRD }, { "cvdg", 0x2e, INSTR_RXY_RRRD }, { "strvg", 0x2f, INSTR_RXY_RRRD }, { "cgf", 0x30, INSTR_RXY_RRRD }, { "clgf", 0x31, INSTR_RXY_RRRD }, + { "ltgf", 0x32, INSTR_RXY_RRRD }, + { "cgh", 0x34, INSTR_RXY_RRRD }, + { "pfd", 0x36, INSTR_RXY_URRD }, { "strvh", 0x3f, INSTR_RXY_RRRD }, { "bctg", 0x46, INSTR_RXY_RRRD }, { "sty", 0x50, INSTR_RXY_RRRD }, @@ -1133,21 +1314,25 @@ static struct insn opcode_e3[] = { { "cy", 0x59, INSTR_RXY_RRRD }, { "ay", 0x5a, INSTR_RXY_RRRD }, { "sy", 0x5b, INSTR_RXY_RRRD }, + { "mfy", 0x5c, INSTR_RXY_RRRD }, { "aly", 0x5e, INSTR_RXY_RRRD }, { "sly", 0x5f, INSTR_RXY_RRRD }, { "sthy", 0x70, INSTR_RXY_RRRD }, { "lay", 0x71, INSTR_RXY_RRRD }, { "stcy", 0x72, INSTR_RXY_RRRD }, { "icy", 0x73, INSTR_RXY_RRRD }, + { "laey", 0x75, INSTR_RXY_RRRD }, { "lb", 0x76, INSTR_RXY_RRRD }, { "lgb", 0x77, INSTR_RXY_RRRD }, { "lhy", 0x78, INSTR_RXY_RRRD }, { "chy", 0x79, INSTR_RXY_RRRD }, { "ahy", 0x7a, INSTR_RXY_RRRD }, { "shy", 0x7b, INSTR_RXY_RRRD }, + { "mhy", 0x7c, INSTR_RXY_RRRD }, { "ng", 0x80, INSTR_RXY_RRRD }, { "og", 0x81, INSTR_RXY_RRRD }, { "xg", 0x82, INSTR_RXY_RRRD }, + { "lgat", 0x85, INSTR_RXY_RRRD }, { "mlg", 0x86, INSTR_RXY_RRRD }, { "dlg", 0x87, INSTR_RXY_RRRD }, { "alcg", 0x88, INSTR_RXY_RRRD }, @@ -1158,23 +1343,22 @@ static struct insn opcode_e3[] = { { "llgh", 0x91, INSTR_RXY_RRRD }, { "llc", 0x94, INSTR_RXY_RRRD }, { "llh", 0x95, INSTR_RXY_RRRD }, - { "cgh", 0x34, INSTR_RXY_RRRD }, - { "laey", 0x75, INSTR_RXY_RRRD }, - { "ltgf", 0x32, INSTR_RXY_RRRD }, - { "mfy", 0x5c, INSTR_RXY_RRRD }, - { "mhy", 0x7c, INSTR_RXY_RRRD }, - { "pfd", 0x36, INSTR_RXY_URRD }, + { { 0, LONG_INSN_LLGTAT }, 0x9c, INSTR_RXY_RRRD }, + { { 0, LONG_INSN_LLGFAT }, 0x9d, INSTR_RXY_RRRD }, + { "lat", 0x9f, INSTR_RXY_RRRD }, { "lbh", 0xc0, INSTR_RXY_RRRD }, { "llch", 0xc2, INSTR_RXY_RRRD }, { "stch", 0xc3, INSTR_RXY_RRRD }, { "lhh", 0xc4, INSTR_RXY_RRRD }, { "llhh", 0xc6, INSTR_RXY_RRRD }, { "sthh", 0xc7, INSTR_RXY_RRRD }, + { "lfhat", 0xc8, INSTR_RXY_RRRD }, { "lfh", 0xca, INSTR_RXY_RRRD }, { "stfh", 0xcb, INSTR_RXY_RRRD }, { "chf", 0xcd, INSTR_RXY_RRRD }, { "clhf", 0xcf, INSTR_RXY_RRRD }, - { "ntstg", 0x25, INSTR_RXY_RRRD }, + { { 0, LONG_INSN_MPCIFC }, 0xd0, INSTR_RXY_RRRD }, + { { 0, LONG_INSN_STPCIFC }, 0xd4, INSTR_RXY_RRRD }, #endif { "lrv", 0x1e, INSTR_RXY_RRRD }, { "lrvh", 0x1f, INSTR_RXY_RRRD }, @@ -1189,15 +1373,15 @@ static struct insn opcode_e3[] = { static struct insn opcode_e5[] = { #ifdef CONFIG_64BIT { "strag", 0x02, INSTR_SSE_RDRD }, + { "mvhhi", 0x44, INSTR_SIL_RDI }, + { "mvghi", 0x48, INSTR_SIL_RDI }, + { "mvhi", 0x4c, INSTR_SIL_RDI }, { "chhsi", 0x54, INSTR_SIL_RDI }, - { "chsi", 0x5c, INSTR_SIL_RDI }, - { "cghsi", 0x58, INSTR_SIL_RDI }, { { 0, LONG_INSN_CLHHSI }, 0x55, INSTR_SIL_RDU }, - { { 0, LONG_INSN_CLFHSI }, 0x5d, INSTR_SIL_RDU }, + { "cghsi", 0x58, INSTR_SIL_RDI }, { { 0, LONG_INSN_CLGHSI }, 0x59, INSTR_SIL_RDU }, - { "mvhhi", 0x44, INSTR_SIL_RDI }, - { "mvhi", 0x4c, INSTR_SIL_RDI }, - { "mvghi", 0x48, INSTR_SIL_RDI }, + { "chsi", 0x5c, INSTR_SIL_RDI }, + { { 0, LONG_INSN_CLFHSI }, 0x5d, INSTR_SIL_RDU }, { { 0, LONG_INSN_TBEGIN }, 0x60, INSTR_SIL_RDU }, { { 0, LONG_INSN_TBEGINC }, 0x61, INSTR_SIL_RDU }, #endif @@ -1220,9 +1404,11 @@ static struct insn opcode_eb[] = { { "rllg", 0x1c, INSTR_RSY_RRRD }, { "clmh", 0x20, INSTR_RSY_RURD }, { "clmy", 0x21, INSTR_RSY_RURD }, + { "clt", 0x23, INSTR_RSY_RURD }, { "stmg", 0x24, INSTR_RSY_RRRD }, { "stctg", 0x25, INSTR_RSY_CCRD }, { "stmh", 0x26, INSTR_RSY_RRRD }, + { "clgt", 0x2b, INSTR_RSY_RURD }, { "stcmh", 0x2c, INSTR_RSY_RURD }, { "stcmy", 0x2d, INSTR_RSY_RURD }, { "lctlg", 0x2f, INSTR_RSY_CCRD }, @@ -1231,16 +1417,17 @@ static struct insn opcode_eb[] = { { "cdsg", 0x3e, INSTR_RSY_RRRD }, { "bxhg", 0x44, INSTR_RSY_RRRD }, { "bxleg", 0x45, INSTR_RSY_RRRD }, + { "ecag", 0x4c, INSTR_RSY_RRRD }, { "tmy", 0x51, INSTR_SIY_URD }, { "mviy", 0x52, INSTR_SIY_URD }, { "niy", 0x54, INSTR_SIY_URD }, { "cliy", 0x55, INSTR_SIY_URD }, { "oiy", 0x56, INSTR_SIY_URD }, { "xiy", 0x57, INSTR_SIY_URD }, - { "lric", 0x60, INSTR_RSY_RDRM }, - { "stric", 0x61, INSTR_RSY_RDRM }, - { "mric", 0x62, INSTR_RSY_RDRM }, - { "icmh", 0x80, INSTR_RSE_RURD }, + { "asi", 0x6a, INSTR_SIY_IRD }, + { "alsi", 0x6e, INSTR_SIY_IRD }, + { "agsi", 0x7a, INSTR_SIY_IRD }, + { "algsi", 0x7e, INSTR_SIY_IRD }, { "icmh", 0x80, INSTR_RSY_RURD }, { "icmy", 0x81, INSTR_RSY_RURD }, { "clclu", 0x8f, INSTR_RSY_RRRD }, @@ -1249,11 +1436,8 @@ static struct insn opcode_eb[] = { { "lmy", 0x98, INSTR_RSY_RRRD }, { "lamy", 0x9a, INSTR_RSY_AARD }, { "stamy", 0x9b, INSTR_RSY_AARD }, - { "asi", 0x6a, INSTR_SIY_IRD }, - { "agsi", 0x7a, INSTR_SIY_IRD }, - { "alsi", 0x6e, INSTR_SIY_IRD }, - { "algsi", 0x7e, INSTR_SIY_IRD }, - { "ecag", 0x4c, INSTR_RSY_RRRD }, + { { 0, LONG_INSN_PCISTB }, 0xd0, INSTR_RSY_RRRD }, + { "sic", 0xd1, INSTR_RSY_RRRD }, { "srak", 0xdc, INSTR_RSY_RRRD }, { "slak", 0xdd, INSTR_RSY_RRRD }, { "srlk", 0xde, INSTR_RSY_RRRD }, @@ -1272,6 +1456,9 @@ static struct insn opcode_eb[] = { { "lax", 0xf7, INSTR_RSY_RRRD }, { "laa", 0xf8, INSTR_RSY_RRRD }, { "laal", 0xfa, INSTR_RSY_RRRD }, + { "lric", 0x60, INSTR_RSY_RDRM }, + { "stric", 0x61, INSTR_RSY_RDRM }, + { "mric", 0x62, INSTR_RSY_RDRM }, #endif { "rll", 0x1d, INSTR_RSY_RRRD }, { "mvclu", 0x8e, INSTR_RSY_RRRD }, @@ -1283,36 +1470,37 @@ static struct insn opcode_ec[] = { #ifdef CONFIG_64BIT { "brxhg", 0x44, INSTR_RIE_RRP }, { "brxlg", 0x45, INSTR_RIE_RRP }, - { "crb", 0xf6, INSTR_RRS_RRRDU }, - { "cgrb", 0xe4, INSTR_RRS_RRRDU }, - { "crj", 0x76, INSTR_RIE_RRPU }, + { { 0, LONG_INSN_RISBLG }, 0x51, INSTR_RIE_RRUUU }, + { "rnsbg", 0x54, INSTR_RIE_RRUUU }, + { "risbg", 0x55, INSTR_RIE_RRUUU }, + { "rosbg", 0x56, INSTR_RIE_RRUUU }, + { "rxsbg", 0x57, INSTR_RIE_RRUUU }, + { { 0, LONG_INSN_RISBGN }, 0x59, INSTR_RIE_RRUUU }, + { { 0, LONG_INSN_RISBHG }, 0x5D, INSTR_RIE_RRUUU }, { "cgrj", 0x64, INSTR_RIE_RRPU }, - { "cib", 0xfe, INSTR_RIS_RURDI }, - { "cgib", 0xfc, INSTR_RIS_RURDI }, - { "cij", 0x7e, INSTR_RIE_RUPI }, - { "cgij", 0x7c, INSTR_RIE_RUPI }, - { "cit", 0x72, INSTR_RIE_R0IU }, + { "clgrj", 0x65, INSTR_RIE_RRPU }, { "cgit", 0x70, INSTR_RIE_R0IU }, - { "clrb", 0xf7, INSTR_RRS_RRRDU }, - { "clgrb", 0xe5, INSTR_RRS_RRRDU }, + { "clgit", 0x71, INSTR_RIE_R0UU }, + { "cit", 0x72, INSTR_RIE_R0IU }, + { "clfit", 0x73, INSTR_RIE_R0UU }, + { "crj", 0x76, INSTR_RIE_RRPU }, { "clrj", 0x77, INSTR_RIE_RRPU }, - { "clgrj", 0x65, INSTR_RIE_RRPU }, - { "clib", 0xff, INSTR_RIS_RURDU }, - { "clgib", 0xfd, INSTR_RIS_RURDU }, - { "clij", 0x7f, INSTR_RIE_RUPU }, + { "cgij", 0x7c, INSTR_RIE_RUPI }, { "clgij", 0x7d, INSTR_RIE_RUPU }, - { "clfit", 0x73, INSTR_RIE_R0UU }, - { "clgit", 0x71, INSTR_RIE_R0UU }, - { "rnsbg", 0x54, INSTR_RIE_RRUUU }, - { "rxsbg", 0x57, INSTR_RIE_RRUUU }, - { "rosbg", 0x56, INSTR_RIE_RRUUU }, - { "risbg", 0x55, INSTR_RIE_RRUUU }, - { { 0, LONG_INSN_RISBLG }, 0x51, INSTR_RIE_RRUUU }, - { { 0, LONG_INSN_RISBHG }, 0x5D, INSTR_RIE_RRUUU }, + { "cij", 0x7e, INSTR_RIE_RUPI }, + { "clij", 0x7f, INSTR_RIE_RUPU }, { "ahik", 0xd8, INSTR_RIE_RRI0 }, { "aghik", 0xd9, INSTR_RIE_RRI0 }, { { 0, LONG_INSN_ALHSIK }, 0xda, INSTR_RIE_RRI0 }, { { 0, LONG_INSN_ALGHSIK }, 0xdb, INSTR_RIE_RRI0 }, + { "cgrb", 0xe4, INSTR_RRS_RRRDU }, + { "clgrb", 0xe5, INSTR_RRS_RRRDU }, + { "crb", 0xf6, INSTR_RRS_RRRDU }, + { "clrb", 0xf7, INSTR_RRS_RRRDU }, + { "cgib", 0xfc, INSTR_RIS_RURDI }, + { "clgib", 0xfd, INSTR_RIS_RURDU }, + { "cib", 0xfe, INSTR_RIS_RURDI }, + { "clib", 0xff, INSTR_RIS_RURDU }, #endif { "", 0, INSTR_INVALID } }; @@ -1325,20 +1513,24 @@ static struct insn opcode_ed[] = { { "my", 0x3b, INSTR_RXF_FRRDF }, { "mayh", 0x3c, INSTR_RXF_FRRDF }, { "myh", 0x3d, INSTR_RXF_FRRDF }, - { "ley", 0x64, INSTR_RXY_FRRD }, - { "ldy", 0x65, INSTR_RXY_FRRD }, - { "stey", 0x66, INSTR_RXY_FRRD }, - { "stdy", 0x67, INSTR_RXY_FRRD }, { "sldt", 0x40, INSTR_RXF_FRRDF }, - { "slxt", 0x48, INSTR_RXF_FRRDF }, { "srdt", 0x41, INSTR_RXF_FRRDF }, + { "slxt", 0x48, INSTR_RXF_FRRDF }, { "srxt", 0x49, INSTR_RXF_FRRDF }, { "tdcet", 0x50, INSTR_RXE_FRRD }, - { "tdcdt", 0x54, INSTR_RXE_FRRD }, - { "tdcxt", 0x58, INSTR_RXE_FRRD }, { "tdget", 0x51, INSTR_RXE_FRRD }, + { "tdcdt", 0x54, INSTR_RXE_FRRD }, { "tdgdt", 0x55, INSTR_RXE_FRRD }, + { "tdcxt", 0x58, INSTR_RXE_FRRD }, { "tdgxt", 0x59, INSTR_RXE_FRRD }, + { "ley", 0x64, INSTR_RXY_FRRD }, + { "ldy", 0x65, INSTR_RXY_FRRD }, + { "stey", 0x66, INSTR_RXY_FRRD }, + { "stdy", 0x67, INSTR_RXY_FRRD }, + { "czdt", 0xa8, INSTR_RSL_LRDFU }, + { "czxt", 0xa9, INSTR_RSL_LRDFU }, + { "cdzt", 0xaa, INSTR_RSL_LRDFU }, + { "cxzt", 0xab, INSTR_RSL_LRDFU }, #endif { "ldeb", 0x04, INSTR_RXE_FRRD }, { "lxdb", 0x05, INSTR_RXE_FRRD }, diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S index aa8f2ba6289..55022852326 100644 --- a/arch/s390/kernel/entry.S +++ b/arch/s390/kernel/entry.S @@ -231,12 +231,12 @@ sysc_work: jo sysc_mcck_pending tm __TI_flags+3(%r12),_TIF_NEED_RESCHED jo sysc_reschedule + tm __TI_flags+3(%r12),_TIF_PER_TRAP + jo sysc_singlestep tm __TI_flags+3(%r12),_TIF_SIGPENDING jo sysc_sigpending tm __TI_flags+3(%r12),_TIF_NOTIFY_RESUME jo sysc_notify_resume - tm __TI_flags+3(%r12),_TIF_PER_TRAP - jo sysc_singlestep j sysc_return # beware of critical section cleanup # @@ -259,7 +259,6 @@ sysc_mcck_pending: # _TIF_SIGPENDING is set, call do_signal # sysc_sigpending: - ni __TI_flags+3(%r12),255-_TIF_PER_TRAP # clear TIF_PER_TRAP lr %r2,%r11 # pass pointer to pt_regs l %r1,BASED(.Ldo_signal) basr %r14,%r1 # call do_signal @@ -286,7 +285,7 @@ sysc_notify_resume: # _TIF_PER_TRAP is set, call do_per_trap # sysc_singlestep: - ni __TI_flags+3(%r12),255-(_TIF_SYSCALL | _TIF_PER_TRAP) + ni __TI_flags+3(%r12),255-_TIF_PER_TRAP lr %r2,%r11 # pass pointer to pt_regs l %r1,BASED(.Ldo_per_trap) la %r14,BASED(sysc_return) diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h index d8251b98f17..2711936fe70 100644 --- a/arch/s390/kernel/entry.h +++ b/arch/s390/kernel/entry.h @@ -6,7 +6,6 @@ #include <asm/ptrace.h> #include <asm/cputime.h> -extern void (*pgm_check_table[128])(struct pt_regs *); extern void *restart_stack; void system_call(void); @@ -25,6 +24,26 @@ void do_protection_exception(struct pt_regs *regs); void do_dat_exception(struct pt_regs *regs); void do_asce_exception(struct pt_regs *regs); +void addressing_exception(struct pt_regs *regs); +void data_exception(struct pt_regs *regs); +void default_trap_handler(struct pt_regs *regs); +void divide_exception(struct pt_regs *regs); +void execute_exception(struct pt_regs *regs); +void hfp_divide_exception(struct pt_regs *regs); +void hfp_overflow_exception(struct pt_regs *regs); +void hfp_significance_exception(struct pt_regs *regs); +void hfp_sqrt_exception(struct pt_regs *regs); +void hfp_underflow_exception(struct pt_regs *regs); +void illegal_op(struct pt_regs *regs); +void operand_exception(struct pt_regs *regs); +void overflow_exception(struct pt_regs *regs); +void privileged_op(struct pt_regs *regs); +void space_switch_exception(struct pt_regs *regs); +void special_op_exception(struct pt_regs *regs); +void specification_exception(struct pt_regs *regs); +void transaction_exception(struct pt_regs *regs); +void translation_exception(struct pt_regs *regs); + void do_per_trap(struct pt_regs *regs); void syscall_trace(struct pt_regs *regs, int entryexit); void kernel_stack_overflow(struct pt_regs * regs); diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S index 499e95e90f3..6d34e0c97a3 100644 --- a/arch/s390/kernel/entry64.S +++ b/arch/s390/kernel/entry64.S @@ -80,14 +80,21 @@ _TIF_EXIT_SIE = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING) #endif .endm - .macro HANDLE_SIE_INTERCEPT scratch + .macro HANDLE_SIE_INTERCEPT scratch,pgmcheck #if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE) tmhh %r8,0x0001 # interrupting from user ? jnz .+42 lgr \scratch,%r9 slg \scratch,BASED(.Lsie_loop) clg \scratch,BASED(.Lsie_length) + .if \pgmcheck + # Some program interrupts are suppressing (e.g. protection). + # We must also check the instruction after SIE in that case. + # do_protection_exception will rewind to rewind_pad + jh .+22 + .else jhe .+22 + .endif lg %r9,BASED(.Lsie_loop) SPP BASED(.Lhost_id) # set host id #endif @@ -262,12 +269,12 @@ sysc_work: jo sysc_mcck_pending tm __TI_flags+7(%r12),_TIF_NEED_RESCHED jo sysc_reschedule + tm __TI_flags+7(%r12),_TIF_PER_TRAP + jo sysc_singlestep tm __TI_flags+7(%r12),_TIF_SIGPENDING jo sysc_sigpending tm __TI_flags+7(%r12),_TIF_NOTIFY_RESUME jo sysc_notify_resume - tm __TI_flags+7(%r12),_TIF_PER_TRAP - jo sysc_singlestep j sysc_return # beware of critical section cleanup # @@ -288,7 +295,6 @@ sysc_mcck_pending: # _TIF_SIGPENDING is set, call do_signal # sysc_sigpending: - ni __TI_flags+7(%r12),255-_TIF_PER_TRAP # clear TIF_PER_TRAP lgr %r2,%r11 # pass pointer to pt_regs brasl %r14,do_signal tm __TI_flags+7(%r12),_TIF_SYSCALL @@ -313,7 +319,7 @@ sysc_notify_resume: # _TIF_PER_TRAP is set, call do_per_trap # sysc_singlestep: - ni __TI_flags+7(%r12),255-(_TIF_SYSCALL | _TIF_PER_TRAP) + ni __TI_flags+7(%r12),255-_TIF_PER_TRAP lgr %r2,%r11 # pass pointer to pt_regs larl %r14,sysc_return jg do_per_trap @@ -375,7 +381,7 @@ ENTRY(pgm_check_handler) lg %r12,__LC_THREAD_INFO larl %r13,system_call lmg %r8,%r9,__LC_PGM_OLD_PSW - HANDLE_SIE_INTERCEPT %r14 + HANDLE_SIE_INTERCEPT %r14,1 tmhh %r8,0x0001 # test problem state bit jnz 1f # -> fault in user space tmhh %r8,0x4000 # PER bit set in old PSW ? @@ -413,9 +419,9 @@ ENTRY(pgm_check_handler) larl %r1,pgm_check_table llgh %r10,__PT_INT_CODE+2(%r11) nill %r10,0x007f - sll %r10,3 + sll %r10,2 je sysc_return - lg %r1,0(%r10,%r1) # load address of handler routine + lgf %r1,0(%r10,%r1) # load address of handler routine lgr %r2,%r11 # pass pointer to pt_regs basr %r14,%r1 # branch to interrupt-handler j sysc_return @@ -451,7 +457,7 @@ ENTRY(io_int_handler) lg %r12,__LC_THREAD_INFO larl %r13,system_call lmg %r8,%r9,__LC_IO_OLD_PSW - HANDLE_SIE_INTERCEPT %r14 + HANDLE_SIE_INTERCEPT %r14,0 SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT tmhh %r8,0x0001 # interrupting from user? jz io_skip @@ -597,7 +603,7 @@ ENTRY(ext_int_handler) lg %r12,__LC_THREAD_INFO larl %r13,system_call lmg %r8,%r9,__LC_EXT_OLD_PSW - HANDLE_SIE_INTERCEPT %r14 + HANDLE_SIE_INTERCEPT %r14,0 SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT tmhh %r8,0x0001 # interrupting from user ? jz ext_skip @@ -645,7 +651,7 @@ ENTRY(mcck_int_handler) lg %r12,__LC_THREAD_INFO larl %r13,system_call lmg %r8,%r9,__LC_MCK_OLD_PSW - HANDLE_SIE_INTERCEPT %r14 + HANDLE_SIE_INTERCEPT %r14,0 tm __LC_MCCK_CODE,0x80 # system damage? jo mcck_panic # yes -> rest of mcck code invalid lghi %r14,__LC_CPU_TIMER_SAVE_AREA @@ -944,6 +950,13 @@ ENTRY(sie64a) stg %r3,__SF_EMPTY+8(%r15) # save guest register save area xc __SF_EMPTY+16(8,%r15),__SF_EMPTY+16(%r15) # host id == 0 lmg %r0,%r13,0(%r3) # load guest gprs 0-13 +# some program checks are suppressing. C code (e.g. do_protection_exception) +# will rewind the PSW by the ILC, which is 4 bytes in case of SIE. Other +# instructions in the sie_loop should not cause program interrupts. So +# lets use a nop (47 00 00 00) as a landing pad. +# See also HANDLE_SIE_INTERCEPT +rewind_pad: + nop 0 sie_loop: lg %r14,__LC_THREAD_INFO # pointer thread_info struct tm __TI_flags+7(%r14),_TIF_EXIT_SIE @@ -983,6 +996,7 @@ sie_fault: .Lhost_id: .quad 0 + EX_TABLE(rewind_pad,sie_fault) EX_TABLE(sie_loop,sie_fault) #endif diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S index 984726cbce1..fd8db63dfc9 100644 --- a/arch/s390/kernel/head.S +++ b/arch/s390/kernel/head.S @@ -393,30 +393,35 @@ ENTRY(startup_kdump) xc 0x300(256),0x300 xc 0xe00(256),0xe00 stck __LC_LAST_UPDATE_CLOCK - spt 5f-.LPG0(%r13) - mvc __LC_LAST_UPDATE_TIMER(8),5f-.LPG0(%r13) + spt 6f-.LPG0(%r13) + mvc __LC_LAST_UPDATE_TIMER(8),6f-.LPG0(%r13) xc __LC_STFL_FAC_LIST(8),__LC_STFL_FAC_LIST #ifndef CONFIG_MARCH_G5 # check capabilities against MARCH_{G5,Z900,Z990,Z9_109,Z10} .insn s,0xb2b10000,__LC_STFL_FAC_LIST # store facility list tm __LC_STFL_FAC_LIST,0x01 # stfle available ? jz 0f - la %r0,0 + la %r0,1 .insn s,0xb2b00000,__LC_STFL_FAC_LIST # store facility list extended -0: l %r0,__LC_STFL_FAC_LIST - n %r0,2f+8-.LPG0(%r13) - cl %r0,2f+8-.LPG0(%r13) - jne 1f - l %r0,__LC_STFL_FAC_LIST+4 - n %r0,2f+12-.LPG0(%r13) - cl %r0,2f+12-.LPG0(%r13) - je 3f -1: l %r15,.Lstack-.LPG0(%r13) + # verify if all required facilities are supported by the machine +0: la %r1,__LC_STFL_FAC_LIST + la %r2,3f+8-.LPG0(%r13) + l %r3,0(%r2) +1: l %r0,0(%r1) + n %r0,4(%r2) + cl %r0,4(%r2) + jne 2f + la %r1,4(%r1) + la %r2,4(%r2) + ahi %r3,-1 + jnz 1b + j 4f +2: l %r15,.Lstack-.LPG0(%r13) ahi %r15,-96 la %r2,.Lals_string-.LPG0(%r13) l %r3,.Lsclp_print-.LPG0(%r13) basr %r14,%r3 - lpsw 2f-.LPG0(%r13) # machine type not good enough, crash + lpsw 3f-.LPG0(%r13) # machine type not good enough, crash .Lals_string: .asciz "The Linux kernel requires more recent processor hardware" .Lsclp_print: @@ -424,33 +429,42 @@ ENTRY(startup_kdump) .Lstack: .long 0x8000 + (1<<(PAGE_SHIFT+THREAD_ORDER)) .align 16 -2: .long 0x000a0000,0x8badcccc +3: .long 0x000a0000,0x8badcccc + +# List of facilities that are required. If not all facilities are present +# the kernel will crash. Format is number of facility words with bits set, +# followed by the facility words. + #if defined(CONFIG_64BIT) -#if defined(CONFIG_MARCH_Z196) - .long 0xc100efe3, 0xf46c0000 +#if defined(CONFIG_MARCH_ZEC12) + .long 3, 0xc100efe3, 0xf46ce000, 0x00400000 +#elif defined(CONFIG_MARCH_Z196) + .long 2, 0xc100efe3, 0xf46c0000 #elif defined(CONFIG_MARCH_Z10) - .long 0xc100efe3, 0xf0680000 + .long 2, 0xc100efe3, 0xf0680000 #elif defined(CONFIG_MARCH_Z9_109) - .long 0xc100efc3, 0x00000000 + .long 1, 0xc100efc3 #elif defined(CONFIG_MARCH_Z990) - .long 0xc0002000, 0x00000000 + .long 1, 0xc0002000 #elif defined(CONFIG_MARCH_Z900) - .long 0xc0000000, 0x00000000 + .long 1, 0xc0000000 #endif #else -#if defined(CONFIG_MARCH_Z196) - .long 0x8100c880, 0x00000000 +#if defined(CONFIG_MARCH_ZEC12) + .long 1, 0x8100c880 +#elif defined(CONFIG_MARCH_Z196) + .long 1, 0x8100c880 #elif defined(CONFIG_MARCH_Z10) - .long 0x8100c880, 0x00000000 + .long 1, 0x8100c880 #elif defined(CONFIG_MARCH_Z9_109) - .long 0x8100c880, 0x00000000 + .long 1, 0x8100c880 #elif defined(CONFIG_MARCH_Z990) - .long 0x80002000, 0x00000000 + .long 1, 0x80002000 #elif defined(CONFIG_MARCH_Z900) - .long 0x80000000, 0x00000000 + .long 1, 0x80000000 #endif #endif -3: +4: #endif #ifdef CONFIG_64BIT @@ -459,14 +473,14 @@ ENTRY(startup_kdump) jg startup_continue #else /* Continue with 31bit startup code in head31.S */ - l %r13,4f-.LPG0(%r13) + l %r13,5f-.LPG0(%r13) b 0(%r13) .align 8 -4: .long startup_continue +5: .long startup_continue #endif .align 8 -5: .long 0x7fffffff,0xffffffff +6: .long 0x7fffffff,0xffffffff #include "head_kdump.S" diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c index 6cdc55b26d6..bf24293970c 100644 --- a/arch/s390/kernel/irq.c +++ b/arch/s390/kernel/irq.c @@ -58,6 +58,8 @@ static const struct irq_class intrclass_names[] = { [IOINT_APB] = {.name = "APB", .desc = "[I/O] AP Bus"}, [IOINT_ADM] = {.name = "ADM", .desc = "[I/O] EADM Subchannel"}, [IOINT_CSC] = {.name = "CSC", .desc = "[I/O] CHSC Subchannel"}, + [IOINT_PCI] = {.name = "PCI", .desc = "[I/O] PCI Interrupt" }, + [IOINT_MSI] = {.name = "MSI", .desc = "[I/O] MSI Interrupt" }, [NMI_NMI] = {.name = "NMI", .desc = "[NMI] Machine Check"}, }; diff --git a/arch/s390/kernel/pgm_check.S b/arch/s390/kernel/pgm_check.S new file mode 100644 index 00000000000..14bdecb6192 --- /dev/null +++ b/arch/s390/kernel/pgm_check.S @@ -0,0 +1,152 @@ +/* + * Program check table. + * + * Copyright IBM Corp. 2012 + */ + +#include <linux/linkage.h> + +#ifdef CONFIG_32BIT +#define PGM_CHECK_64BIT(handler) .long default_trap_handler +#else +#define PGM_CHECK_64BIT(handler) .long handler +#endif + +#define PGM_CHECK(handler) .long handler +#define PGM_CHECK_DEFAULT PGM_CHECK(default_trap_handler) + +/* + * The program check table contains exactly 128 (0x00-0x7f) entries. Each + * line defines the 31 and/or 64 bit function to be called corresponding + * to the program check interruption code. + */ +.section .rodata, "a" +ENTRY(pgm_check_table) +PGM_CHECK_DEFAULT /* 00 */ +PGM_CHECK(illegal_op) /* 01 */ +PGM_CHECK(privileged_op) /* 02 */ +PGM_CHECK(execute_exception) /* 03 */ +PGM_CHECK(do_protection_exception) /* 04 */ +PGM_CHECK(addressing_exception) /* 05 */ +PGM_CHECK(specification_exception) /* 06 */ +PGM_CHECK(data_exception) /* 07 */ +PGM_CHECK(overflow_exception) /* 08 */ +PGM_CHECK(divide_exception) /* 09 */ +PGM_CHECK(overflow_exception) /* 0a */ +PGM_CHECK(divide_exception) /* 0b */ +PGM_CHECK(hfp_overflow_exception) /* 0c */ +PGM_CHECK(hfp_underflow_exception) /* 0d */ +PGM_CHECK(hfp_significance_exception) /* 0e */ +PGM_CHECK(hfp_divide_exception) /* 0f */ +PGM_CHECK(do_dat_exception) /* 10 */ +PGM_CHECK(do_dat_exception) /* 11 */ +PGM_CHECK(translation_exception) /* 12 */ +PGM_CHECK(special_op_exception) /* 13 */ +PGM_CHECK_DEFAULT /* 14 */ +PGM_CHECK(operand_exception) /* 15 */ +PGM_CHECK_DEFAULT /* 16 */ +PGM_CHECK_DEFAULT /* 17 */ +PGM_CHECK_64BIT(transaction_exception) /* 18 */ +PGM_CHECK_DEFAULT /* 19 */ +PGM_CHECK_DEFAULT /* 1a */ +PGM_CHECK_DEFAULT /* 1b */ +PGM_CHECK(space_switch_exception) /* 1c */ +PGM_CHECK(hfp_sqrt_exception) /* 1d */ +PGM_CHECK_DEFAULT /* 1e */ +PGM_CHECK_DEFAULT /* 1f */ +PGM_CHECK_DEFAULT /* 20 */ +PGM_CHECK_DEFAULT /* 21 */ +PGM_CHECK_DEFAULT /* 22 */ +PGM_CHECK_DEFAULT /* 23 */ +PGM_CHECK_DEFAULT /* 24 */ +PGM_CHECK_DEFAULT /* 25 */ +PGM_CHECK_DEFAULT /* 26 */ +PGM_CHECK_DEFAULT /* 27 */ +PGM_CHECK_DEFAULT /* 28 */ +PGM_CHECK_DEFAULT /* 29 */ +PGM_CHECK_DEFAULT /* 2a */ +PGM_CHECK_DEFAULT /* 2b */ +PGM_CHECK_DEFAULT /* 2c */ +PGM_CHECK_DEFAULT /* 2d */ +PGM_CHECK_DEFAULT /* 2e */ +PGM_CHECK_DEFAULT /* 2f */ +PGM_CHECK_DEFAULT /* 30 */ +PGM_CHECK_DEFAULT /* 31 */ +PGM_CHECK_DEFAULT /* 32 */ +PGM_CHECK_DEFAULT /* 33 */ +PGM_CHECK_DEFAULT /* 34 */ +PGM_CHECK_DEFAULT /* 35 */ +PGM_CHECK_DEFAULT /* 36 */ +PGM_CHECK_DEFAULT /* 37 */ +PGM_CHECK_64BIT(do_asce_exception) /* 38 */ +PGM_CHECK_64BIT(do_dat_exception) /* 39 */ +PGM_CHECK_64BIT(do_dat_exception) /* 3a */ +PGM_CHECK_64BIT(do_dat_exception) /* 3b */ +PGM_CHECK_DEFAULT /* 3c */ +PGM_CHECK_DEFAULT /* 3d */ +PGM_CHECK_DEFAULT /* 3e */ +PGM_CHECK_DEFAULT /* 3f */ +PGM_CHECK_DEFAULT /* 40 */ +PGM_CHECK_DEFAULT /* 41 */ +PGM_CHECK_DEFAULT /* 42 */ +PGM_CHECK_DEFAULT /* 43 */ +PGM_CHECK_DEFAULT /* 44 */ +PGM_CHECK_DEFAULT /* 45 */ +PGM_CHECK_DEFAULT /* 46 */ +PGM_CHECK_DEFAULT /* 47 */ +PGM_CHECK_DEFAULT /* 48 */ +PGM_CHECK_DEFAULT /* 49 */ +PGM_CHECK_DEFAULT /* 4a */ +PGM_CHECK_DEFAULT /* 4b */ +PGM_CHECK_DEFAULT /* 4c */ +PGM_CHECK_DEFAULT /* 4d */ +PGM_CHECK_DEFAULT /* 4e */ +PGM_CHECK_DEFAULT /* 4f */ +PGM_CHECK_DEFAULT /* 50 */ +PGM_CHECK_DEFAULT /* 51 */ +PGM_CHECK_DEFAULT /* 52 */ +PGM_CHECK_DEFAULT /* 53 */ +PGM_CHECK_DEFAULT /* 54 */ +PGM_CHECK_DEFAULT /* 55 */ +PGM_CHECK_DEFAULT /* 56 */ +PGM_CHECK_DEFAULT /* 57 */ +PGM_CHECK_DEFAULT /* 58 */ +PGM_CHECK_DEFAULT /* 59 */ +PGM_CHECK_DEFAULT /* 5a */ +PGM_CHECK_DEFAULT /* 5b */ +PGM_CHECK_DEFAULT /* 5c */ +PGM_CHECK_DEFAULT /* 5d */ +PGM_CHECK_DEFAULT /* 5e */ +PGM_CHECK_DEFAULT /* 5f */ +PGM_CHECK_DEFAULT /* 60 */ +PGM_CHECK_DEFAULT /* 61 */ +PGM_CHECK_DEFAULT /* 62 */ +PGM_CHECK_DEFAULT /* 63 */ +PGM_CHECK_DEFAULT /* 64 */ +PGM_CHECK_DEFAULT /* 65 */ +PGM_CHECK_DEFAULT /* 66 */ +PGM_CHECK_DEFAULT /* 67 */ +PGM_CHECK_DEFAULT /* 68 */ +PGM_CHECK_DEFAULT /* 69 */ +PGM_CHECK_DEFAULT /* 6a */ +PGM_CHECK_DEFAULT /* 6b */ +PGM_CHECK_DEFAULT /* 6c */ +PGM_CHECK_DEFAULT /* 6d */ +PGM_CHECK_DEFAULT /* 6e */ +PGM_CHECK_DEFAULT /* 6f */ +PGM_CHECK_DEFAULT /* 70 */ +PGM_CHECK_DEFAULT /* 71 */ +PGM_CHECK_DEFAULT /* 72 */ +PGM_CHECK_DEFAULT /* 73 */ +PGM_CHECK_DEFAULT /* 74 */ +PGM_CHECK_DEFAULT /* 75 */ +PGM_CHECK_DEFAULT /* 76 */ +PGM_CHECK_DEFAULT /* 77 */ +PGM_CHECK_DEFAULT /* 78 */ +PGM_CHECK_DEFAULT /* 79 */ +PGM_CHECK_DEFAULT /* 7a */ +PGM_CHECK_DEFAULT /* 7b */ +PGM_CHECK_DEFAULT /* 7c */ +PGM_CHECK_DEFAULT /* 7d */ +PGM_CHECK_DEFAULT /* 7e */ +PGM_CHECK_DEFAULT /* 7f */ diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index b1f2be9aaaa..2568590973a 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -777,40 +777,6 @@ static void __init reserve_crashkernel(void) #endif } -static void __init init_storage_keys(unsigned long start, unsigned long end) -{ - unsigned long boundary, function, size; - - while (start < end) { - if (MACHINE_HAS_EDAT2) { - /* set storage keys for a 2GB frame */ - function = 0x22000 | PAGE_DEFAULT_KEY; - size = 1UL << 31; - boundary = (start + size) & ~(size - 1); - if (boundary <= end) { - do { - start = pfmf(function, start); - } while (start < boundary); - continue; - } - } - if (MACHINE_HAS_EDAT1) { - /* set storage keys for a 1MB frame */ - function = 0x21000 | PAGE_DEFAULT_KEY; - size = 1UL << 20; - boundary = (start + size) & ~(size - 1); - if (boundary <= end) { - do { - start = pfmf(function, start); - } while (start < boundary); - continue; - } - } - page_set_storage_key(start, PAGE_DEFAULT_KEY, 0); - start += PAGE_SIZE; - } -} - static void __init setup_memory(void) { unsigned long bootmap_size; @@ -889,7 +855,7 @@ static void __init setup_memory(void) memblock_add_node(PFN_PHYS(start_chunk), PFN_PHYS(end_chunk - start_chunk), 0); pfn = max(start_chunk, start_pfn); - init_storage_keys(PFN_PHYS(pfn), PFN_PHYS(end_chunk)); + storage_key_init_range(PFN_PHYS(pfn), PFN_PHYS(end_chunk)); } psw_set_key(PAGE_DEFAULT_KEY); @@ -1040,6 +1006,9 @@ static void __init setup_hwcaps(void) case 0x2818: strcpy(elf_platform, "z196"); break; + case 0x2827: + strcpy(elf_platform, "zEC12"); + break; } } diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c index d1259d87507..c3ff70a7b24 100644 --- a/arch/s390/kernel/signal.c +++ b/arch/s390/kernel/signal.c @@ -461,6 +461,8 @@ void do_signal(struct pt_regs *regs) /* Restart system call with magic TIF bit. */ regs->gprs[2] = regs->orig_gpr2; set_thread_flag(TIF_SYSCALL); + if (test_thread_flag(TIF_SINGLE_STEP)) + set_thread_flag(TIF_PER_TRAP); break; } } diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c index dd55f7c2010..f1aba87cceb 100644 --- a/arch/s390/kernel/topology.c +++ b/arch/s390/kernel/topology.c @@ -29,48 +29,38 @@ struct mask_info { cpumask_t mask; }; -static int topology_enabled = 1; +static void set_topology_timer(void); static void topology_work_fn(struct work_struct *work); static struct sysinfo_15_1_x *tl_info; -static void set_topology_timer(void); -static DECLARE_WORK(topology_work, topology_work_fn); -/* topology_lock protects the core linked list */ -static DEFINE_SPINLOCK(topology_lock); -static struct mask_info core_info; -cpumask_t cpu_core_map[NR_CPUS]; -unsigned char cpu_core_id[NR_CPUS]; -unsigned char cpu_socket_id[NR_CPUS]; +static int topology_enabled = 1; +static DECLARE_WORK(topology_work, topology_work_fn); +/* topology_lock protects the socket and book linked lists */ +static DEFINE_SPINLOCK(topology_lock); +static struct mask_info socket_info; static struct mask_info book_info; -cpumask_t cpu_book_map[NR_CPUS]; -unsigned char cpu_book_id[NR_CPUS]; + +struct cpu_topology_s390 cpu_topology[NR_CPUS]; static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu) { cpumask_t mask; - cpumask_clear(&mask); - if (!topology_enabled || !MACHINE_HAS_TOPOLOGY) { - cpumask_copy(&mask, cpumask_of(cpu)); + cpumask_copy(&mask, cpumask_of(cpu)); + if (!topology_enabled || !MACHINE_HAS_TOPOLOGY) return mask; + for (; info; info = info->next) { + if (cpumask_test_cpu(cpu, &info->mask)) + return info->mask; } - while (info) { - if (cpumask_test_cpu(cpu, &info->mask)) { - mask = info->mask; - break; - } - info = info->next; - } - if (cpumask_empty(&mask)) - cpumask_copy(&mask, cpumask_of(cpu)); return mask; } static struct mask_info *add_cpus_to_mask(struct topology_cpu *tl_cpu, struct mask_info *book, - struct mask_info *core, - int one_core_per_cpu) + struct mask_info *socket, + int one_socket_per_cpu) { unsigned int cpu; @@ -80,28 +70,28 @@ static struct mask_info *add_cpus_to_mask(struct topology_cpu *tl_cpu, rcpu = TOPOLOGY_CPU_BITS - 1 - cpu + tl_cpu->origin; lcpu = smp_find_processor_id(rcpu); - if (lcpu >= 0) { - cpumask_set_cpu(lcpu, &book->mask); - cpu_book_id[lcpu] = book->id; - cpumask_set_cpu(lcpu, &core->mask); - cpu_core_id[lcpu] = rcpu; - if (one_core_per_cpu) { - cpu_socket_id[lcpu] = rcpu; - core = core->next; - } else { - cpu_socket_id[lcpu] = core->id; - } - smp_cpu_set_polarization(lcpu, tl_cpu->pp); + if (lcpu < 0) + continue; + cpumask_set_cpu(lcpu, &book->mask); + cpu_topology[lcpu].book_id = book->id; + cpumask_set_cpu(lcpu, &socket->mask); + cpu_topology[lcpu].core_id = rcpu; + if (one_socket_per_cpu) { + cpu_topology[lcpu].socket_id = rcpu; + socket = socket->next; + } else { + cpu_topology[lcpu].socket_id = socket->id; } + smp_cpu_set_polarization(lcpu, tl_cpu->pp); } - return core; + return socket; } static void clear_masks(void) { struct mask_info *info; - info = &core_info; + info = &socket_info; while (info) { cpumask_clear(&info->mask); info = info->next; @@ -120,9 +110,9 @@ static union topology_entry *next_tle(union topology_entry *tle) return (union topology_entry *)((struct topology_container *)tle + 1); } -static void __tl_to_cores_generic(struct sysinfo_15_1_x *info) +static void __tl_to_masks_generic(struct sysinfo_15_1_x *info) { - struct mask_info *core = &core_info; + struct mask_info *socket = &socket_info; struct mask_info *book = &book_info; union topology_entry *tle, *end; @@ -135,11 +125,11 @@ static void __tl_to_cores_generic(struct sysinfo_15_1_x *info) book->id = tle->container.id; break; case 1: - core = core->next; - core->id = tle->container.id; + socket = socket->next; + socket->id = tle->container.id; break; case 0: - add_cpus_to_mask(&tle->cpu, book, core, 0); + add_cpus_to_mask(&tle->cpu, book, socket, 0); break; default: clear_masks(); @@ -149,9 +139,9 @@ static void __tl_to_cores_generic(struct sysinfo_15_1_x *info) } } -static void __tl_to_cores_z10(struct sysinfo_15_1_x *info) +static void __tl_to_masks_z10(struct sysinfo_15_1_x *info) { - struct mask_info *core = &core_info; + struct mask_info *socket = &socket_info; struct mask_info *book = &book_info; union topology_entry *tle, *end; @@ -164,7 +154,7 @@ static void __tl_to_cores_z10(struct sysinfo_15_1_x *info) book->id = tle->container.id; break; case 0: - core = add_cpus_to_mask(&tle->cpu, book, core, 1); + socket = add_cpus_to_mask(&tle->cpu, book, socket, 1); break; default: clear_masks(); @@ -174,20 +164,20 @@ static void __tl_to_cores_z10(struct sysinfo_15_1_x *info) } } -static void tl_to_cores(struct sysinfo_15_1_x *info) +static void tl_to_masks(struct sysinfo_15_1_x *info) { struct cpuid cpu_id; - get_cpu_id(&cpu_id); spin_lock_irq(&topology_lock); + get_cpu_id(&cpu_id); clear_masks(); switch (cpu_id.machine) { case 0x2097: case 0x2098: - __tl_to_cores_z10(info); + __tl_to_masks_z10(info); break; default: - __tl_to_cores_generic(info); + __tl_to_masks_generic(info); } spin_unlock_irq(&topology_lock); } @@ -232,15 +222,20 @@ int topology_set_cpu_management(int fc) return rc; } -static void update_cpu_core_map(void) +static void update_cpu_masks(void) { unsigned long flags; int cpu; spin_lock_irqsave(&topology_lock, flags); for_each_possible_cpu(cpu) { - cpu_core_map[cpu] = cpu_group_map(&core_info, cpu); - cpu_book_map[cpu] = cpu_group_map(&book_info, cpu); + cpu_topology[cpu].core_mask = cpu_group_map(&socket_info, cpu); + cpu_topology[cpu].book_mask = cpu_group_map(&book_info, cpu); + if (!MACHINE_HAS_TOPOLOGY) { + cpu_topology[cpu].core_id = cpu; + cpu_topology[cpu].socket_id = cpu; + cpu_topology[cpu].book_id = cpu; + } } spin_unlock_irqrestore(&topology_lock, flags); } @@ -260,13 +255,13 @@ int arch_update_cpu_topology(void) int cpu; if (!MACHINE_HAS_TOPOLOGY) { - update_cpu_core_map(); + update_cpu_masks(); topology_update_polarization_simple(); return 0; } store_topology(info); - tl_to_cores(info); - update_cpu_core_map(); + tl_to_masks(info); + update_cpu_masks(); for_each_online_cpu(cpu) { dev = get_cpu_device(cpu); kobject_uevent(&dev->kobj, KOBJ_CHANGE); @@ -355,7 +350,7 @@ void __init s390_init_cpu_topology(void) for (i = 0; i < TOPOLOGY_NR_MAG; i++) printk(KERN_CONT " %d", info->mag[i]); printk(KERN_CONT " / %d\n", info->mnest); - alloc_masks(info, &core_info, 1); + alloc_masks(info, &socket_info, 1); alloc_masks(info, &book_info, 2); } @@ -454,7 +449,7 @@ static int __init topology_init(void) } set_topology_timer(); out: - update_cpu_core_map(); + update_cpu_masks(); return device_create_file(cpu_subsys.dev_root, &dev_attr_dispatching); } device_initcall(topology_init); diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 3d2b0fa37db..70ecfc5fe8f 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -41,8 +41,6 @@ #include <asm/ipl.h> #include "entry.h" -void (*pgm_check_table[128])(struct pt_regs *regs); - int show_unhandled_signals = 1; #define stack_pointer ({ void **sp; asm("la %0,0(15)" : "=&d" (sp)); sp; }) @@ -350,7 +348,7 @@ void __kprobes do_per_trap(struct pt_regs *regs) force_sig_info(SIGTRAP, &info, current); } -static void default_trap_handler(struct pt_regs *regs) +void default_trap_handler(struct pt_regs *regs) { if (user_mode(regs)) { report_user_fault(regs, SIGSEGV); @@ -360,9 +358,9 @@ static void default_trap_handler(struct pt_regs *regs) } #define DO_ERROR_INFO(name, signr, sicode, str) \ -static void name(struct pt_regs *regs) \ -{ \ - do_trap(regs, signr, sicode, str); \ +void name(struct pt_regs *regs) \ +{ \ + do_trap(regs, signr, sicode, str); \ } DO_ERROR_INFO(addressing_exception, SIGILL, ILL_ILLADR, @@ -417,7 +415,7 @@ static inline void do_fp_trap(struct pt_regs *regs, int fpc) do_trap(regs, SIGFPE, si_code, "floating point exception"); } -static void __kprobes illegal_op(struct pt_regs *regs) +void __kprobes illegal_op(struct pt_regs *regs) { siginfo_t info; __u8 opcode[6]; @@ -536,7 +534,7 @@ DO_ERROR_INFO(specification_exception, SIGILL, ILL_ILLOPN, "specification exception"); #endif -static void data_exception(struct pt_regs *regs) +void data_exception(struct pt_regs *regs) { __u16 __user *location; int signal = 0; @@ -611,7 +609,7 @@ static void data_exception(struct pt_regs *regs) do_trap(regs, signal, ILL_ILLOPN, "data exception"); } -static void space_switch_exception(struct pt_regs *regs) +void space_switch_exception(struct pt_regs *regs) { /* Set user psw back to home space mode. */ if (user_mode(regs)) @@ -629,43 +627,7 @@ void __kprobes kernel_stack_overflow(struct pt_regs * regs) panic("Corrupt kernel stack, can't continue."); } -/* init is done in lowcore.S and head.S */ - void __init trap_init(void) { - int i; - - for (i = 0; i < 128; i++) - pgm_check_table[i] = &default_trap_handler; - pgm_check_table[1] = &illegal_op; - pgm_check_table[2] = &privileged_op; - pgm_check_table[3] = &execute_exception; - pgm_check_table[4] = &do_protection_exception; - pgm_check_table[5] = &addressing_exception; - pgm_check_table[6] = &specification_exception; - pgm_check_table[7] = &data_exception; - pgm_check_table[8] = &overflow_exception; - pgm_check_table[9] = ÷_exception; - pgm_check_table[0x0A] = &overflow_exception; - pgm_check_table[0x0B] = ÷_exception; - pgm_check_table[0x0C] = &hfp_overflow_exception; - pgm_check_table[0x0D] = &hfp_underflow_exception; - pgm_check_table[0x0E] = &hfp_significance_exception; - pgm_check_table[0x0F] = &hfp_divide_exception; - pgm_check_table[0x10] = &do_dat_exception; - pgm_check_table[0x11] = &do_dat_exception; - pgm_check_table[0x12] = &translation_exception; - pgm_check_table[0x13] = &special_op_exception; -#ifdef CONFIG_64BIT - pgm_check_table[0x18] = &transaction_exception; - pgm_check_table[0x38] = &do_asce_exception; - pgm_check_table[0x39] = &do_dat_exception; - pgm_check_table[0x3A] = &do_dat_exception; - pgm_check_table[0x3B] = &do_dat_exception; -#endif /* CONFIG_64BIT */ - pgm_check_table[0x15] = &operand_exception; - pgm_check_table[0x1C] = &space_switch_exception; - pgm_check_table[0x1D] = &hfp_sqrt_exception; - /* Enable machine checks early. */ local_mcck_enable(); } diff --git a/arch/s390/mm/Makefile b/arch/s390/mm/Makefile index 1bea6d1f55a..640bea12303 100644 --- a/arch/s390/mm/Makefile +++ b/arch/s390/mm/Makefile @@ -2,9 +2,9 @@ # Makefile for the linux s390-specific parts of the memory manager. # -obj-y := init.o fault.o extmem.o mmap.o vmem.o pgtable.o maccess.o \ - page-states.o gup.o extable.o -obj-$(CONFIG_CMM) += cmm.o -obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o -obj-$(CONFIG_DEBUG_SET_MODULE_RONX) += pageattr.o -obj-$(CONFIG_S390_PTDUMP) += dump_pagetables.o +obj-y := init.o fault.o extmem.o mmap.o vmem.o pgtable.o maccess.o +obj-y += page-states.o gup.o extable.o pageattr.o + +obj-$(CONFIG_CMM) += cmm.o +obj-$(CONFIG_HUGETLB_PAGE) += hugetlbpage.o +obj-$(CONFIG_S390_PTDUMP) += dump_pagetables.o diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c index cbc6668acb8..04e4892247d 100644 --- a/arch/s390/mm/dump_pagetables.c +++ b/arch/s390/mm/dump_pagetables.c @@ -150,6 +150,7 @@ static void walk_pmd_level(struct seq_file *m, struct pg_state *st, static void walk_pud_level(struct seq_file *m, struct pg_state *st, pgd_t *pgd, unsigned long addr) { + unsigned int prot; pud_t *pud; int i; @@ -157,7 +158,11 @@ static void walk_pud_level(struct seq_file *m, struct pg_state *st, st->current_address = addr; pud = pud_offset(pgd, addr); if (!pud_none(*pud)) - walk_pmd_level(m, st, pud, addr); + if (pud_large(*pud)) { + prot = pud_val(*pud) & _PAGE_RO; + note_page(m, st, prot, 2); + } else + walk_pmd_level(m, st, pud, addr); else note_page(m, st, _PAGE_INVALID, 2); addr += PUD_SIZE; diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 04ad4001a28..42601d6e166 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -49,15 +49,19 @@ #define VM_FAULT_BADCONTEXT 0x010000 #define VM_FAULT_BADMAP 0x020000 #define VM_FAULT_BADACCESS 0x040000 -#define VM_FAULT_SIGNAL 0x080000 +#define VM_FAULT_SIGNAL 0x080000 -static unsigned long store_indication; +static unsigned long store_indication __read_mostly; -void fault_init(void) +#ifdef CONFIG_64BIT +static int __init fault_init(void) { - if (test_facility(2) && test_facility(75)) + if (test_facility(75)) store_indication = 0xc00; + return 0; } +early_initcall(fault_init); +#endif static inline int notify_page_fault(struct pt_regs *regs) { @@ -273,10 +277,16 @@ static inline int do_exception(struct pt_regs *regs, int access) unsigned int flags; int fault; + tsk = current; + /* + * The instruction that caused the program check has + * been nullified. Don't signal single step via SIGTRAP. + */ + clear_tsk_thread_flag(tsk, TIF_PER_TRAP); + if (notify_page_fault(regs)) return 0; - tsk = current; mm = tsk->mm; trans_exc_code = regs->int_parm_long; @@ -372,11 +382,6 @@ retry: goto retry; } } - /* - * The instruction that caused the program check will - * be repeated. Don't signal single step via SIGTRAP. - */ - clear_tsk_thread_flag(tsk, TIF_PER_TRAP); fault = 0; out_up: up_read(&mm->mmap_sem); @@ -423,6 +428,12 @@ void __kprobes do_asce_exception(struct pt_regs *regs) struct vm_area_struct *vma; unsigned long trans_exc_code; + /* + * The instruction that caused the program check has + * been nullified. Don't signal single step via SIGTRAP. + */ + clear_tsk_thread_flag(current, TIF_PER_TRAP); + trans_exc_code = regs->int_parm_long; if (unlikely(!user_space_fault(trans_exc_code) || in_atomic() || !mm)) goto no_context; diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c index 81e596c65de..ae672f41c46 100644 --- a/arch/s390/mm/init.c +++ b/arch/s390/mm/init.c @@ -125,7 +125,6 @@ void __init paging_init(void) max_zone_pfns[ZONE_DMA] = PFN_DOWN(MAX_DMA_ADDRESS); max_zone_pfns[ZONE_NORMAL] = max_low_pfn; free_area_init_nodes(max_zone_pfns); - fault_init(); } void __init mem_init(void) @@ -159,34 +158,6 @@ void __init mem_init(void) PFN_ALIGN((unsigned long)&_eshared) - 1); } -#ifdef CONFIG_DEBUG_PAGEALLOC -void kernel_map_pages(struct page *page, int numpages, int enable) -{ - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *pte; - unsigned long address; - int i; - - for (i = 0; i < numpages; i++) { - address = page_to_phys(page + i); - pgd = pgd_offset_k(address); - pud = pud_offset(pgd, address); - pmd = pmd_offset(pud, address); - pte = pte_offset_kernel(pmd, address); - if (!enable) { - __ptep_ipte(address, pte); - pte_val(*pte) = _PAGE_TYPE_EMPTY; - continue; - } - *pte = mk_pte_phys(address, __pgprot(_PAGE_TYPE_RW)); - /* Flush cpu write queue. */ - mb(); - } -} -#endif - void free_init_pages(char *what, unsigned long begin, unsigned long end) { unsigned long addr = begin; diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c index 00be01c4b4f..29ccee3651f 100644 --- a/arch/s390/mm/pageattr.c +++ b/arch/s390/mm/pageattr.c @@ -2,11 +2,46 @@ * Copyright IBM Corp. 2011 * Author(s): Jan Glauber <jang@linux.vnet.ibm.com> */ +#include <linux/hugetlb.h> #include <linux/module.h> #include <linux/mm.h> -#include <linux/hugetlb.h> #include <asm/cacheflush.h> #include <asm/pgtable.h> +#include <asm/page.h> + +void storage_key_init_range(unsigned long start, unsigned long end) +{ + unsigned long boundary, function, size; + + while (start < end) { + if (MACHINE_HAS_EDAT2) { + /* set storage keys for a 2GB frame */ + function = 0x22000 | PAGE_DEFAULT_KEY; + size = 1UL << 31; + boundary = (start + size) & ~(size - 1); + if (boundary <= end) { + do { + start = pfmf(function, start); + } while (start < boundary); + continue; + } + } + if (MACHINE_HAS_EDAT1) { + /* set storage keys for a 1MB frame */ + function = 0x21000 | PAGE_DEFAULT_KEY; + size = 1UL << 20; + boundary = (start + size) & ~(size - 1); + if (boundary <= end) { + do { + start = pfmf(function, start); + } while (start < boundary); + continue; + } + } + page_set_storage_key(start, PAGE_DEFAULT_KEY, 0); + start += PAGE_SIZE; + } +} static pte_t *walk_page_table(unsigned long addr) { @@ -19,7 +54,7 @@ static pte_t *walk_page_table(unsigned long addr) if (pgd_none(*pgdp)) return NULL; pudp = pud_offset(pgdp, addr); - if (pud_none(*pudp)) + if (pud_none(*pudp) || pud_large(*pudp)) return NULL; pmdp = pmd_offset(pudp, addr); if (pmd_none(*pmdp) || pmd_large(*pmdp)) @@ -70,3 +105,46 @@ int set_memory_x(unsigned long addr, int numpages) { return 0; } + +#ifdef CONFIG_DEBUG_PAGEALLOC +void kernel_map_pages(struct page *page, int numpages, int enable) +{ + unsigned long address; + pgd_t *pgd; + pud_t *pud; + pmd_t *pmd; + pte_t *pte; + int i; + + for (i = 0; i < numpages; i++) { + address = page_to_phys(page + i); + pgd = pgd_offset_k(address); + pud = pud_offset(pgd, address); + pmd = pmd_offset(pud, address); + pte = pte_offset_kernel(pmd, address); + if (!enable) { + __ptep_ipte(address, pte); + pte_val(*pte) = _PAGE_TYPE_EMPTY; + continue; + } + *pte = mk_pte_phys(address, __pgprot(_PAGE_TYPE_RW)); + } +} + +#ifdef CONFIG_HIBERNATION +bool kernel_page_present(struct page *page) +{ + unsigned long addr; + int cc; + + addr = page_to_phys(page); + asm volatile( + " lra %1,0(%1)\n" + " ipm %0\n" + " srl %0,28" + : "=d" (cc), "+a" (addr) : : "cc"); + return cc == 0; +} +#endif /* CONFIG_HIBERNATION */ + +#endif /* CONFIG_DEBUG_PAGEALLOC */ diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c index c8188a18af0..ae44d2a3431 100644 --- a/arch/s390/mm/pgtable.c +++ b/arch/s390/mm/pgtable.c @@ -881,22 +881,6 @@ int s390_enable_sie(void) } EXPORT_SYMBOL_GPL(s390_enable_sie); -#if defined(CONFIG_DEBUG_PAGEALLOC) && defined(CONFIG_HIBERNATION) -bool kernel_page_present(struct page *page) -{ - unsigned long addr; - int cc; - - addr = page_to_phys(page); - asm volatile( - " lra %1,0(%1)\n" - " ipm %0\n" - " srl %0,28" - : "=d" (cc), "+a" (addr) : : "cc"); - return cc == 0; -} -#endif /* CONFIG_HIBERNATION && CONFIG_DEBUG_PAGEALLOC */ - #ifdef CONFIG_TRANSPARENT_HUGEPAGE int pmdp_clear_flush_young(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp) diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c index 387c7c60b5b..6ed1426d27c 100644 --- a/arch/s390/mm/vmem.c +++ b/arch/s390/mm/vmem.c @@ -89,6 +89,7 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro) int ret = -ENOMEM; while (address < end) { + pte = mk_pte_phys(address, __pgprot(ro ? _PAGE_RO : 0)); pg_dir = pgd_offset_k(address); if (pgd_none(*pg_dir)) { pu_dir = vmem_pud_alloc(); @@ -96,18 +97,24 @@ static int vmem_add_mem(unsigned long start, unsigned long size, int ro) goto out; pgd_populate(&init_mm, pg_dir, pu_dir); } - pu_dir = pud_offset(pg_dir, address); +#if defined(CONFIG_64BIT) && !defined(CONFIG_DEBUG_PAGEALLOC) + if (MACHINE_HAS_EDAT2 && pud_none(*pu_dir) && address && + !(address & ~PUD_MASK) && (address + PUD_SIZE <= end)) { + pte_val(pte) |= _REGION3_ENTRY_LARGE; + pte_val(pte) |= _REGION_ENTRY_TYPE_R3; + pud_val(*pu_dir) = pte_val(pte); + address += PUD_SIZE; + continue; + } +#endif if (pud_none(*pu_dir)) { pm_dir = vmem_pmd_alloc(); if (!pm_dir) goto out; pud_populate(&init_mm, pu_dir, pm_dir); } - - pte = mk_pte_phys(address, __pgprot(ro ? _PAGE_RO : 0)); pm_dir = pmd_offset(pu_dir, address); - #if defined(CONFIG_64BIT) && !defined(CONFIG_DEBUG_PAGEALLOC) if (MACHINE_HAS_EDAT1 && pmd_none(*pm_dir) && address && !(address & ~PMD_MASK) && (address + PMD_SIZE <= end)) { @@ -160,6 +167,11 @@ static void vmem_remove_range(unsigned long start, unsigned long size) address += PUD_SIZE; continue; } + if (pud_large(*pu_dir)) { + pud_clear(pu_dir); + address += PUD_SIZE; + continue; + } pm_dir = pmd_offset(pu_dir, address); if (pmd_none(*pm_dir)) { address += PMD_SIZE; @@ -193,7 +205,7 @@ int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node) start_addr = (unsigned long) start; end_addr = (unsigned long) (start + nr); - for (address = start_addr; address < end_addr; address += PAGE_SIZE) { + for (address = start_addr; address < end_addr;) { pg_dir = pgd_offset_k(address); if (pgd_none(*pg_dir)) { pu_dir = vmem_pud_alloc(); @@ -212,10 +224,33 @@ int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node) pm_dir = pmd_offset(pu_dir, address); if (pmd_none(*pm_dir)) { +#ifdef CONFIG_64BIT + /* Use 1MB frames for vmemmap if available. We always + * use large frames even if they are only partially + * used. + * Otherwise we would have also page tables since + * vmemmap_populate gets called for each section + * separately. */ + if (MACHINE_HAS_EDAT1) { + void *new_page; + + new_page = vmemmap_alloc_block(PMD_SIZE, node); + if (!new_page) + goto out; + pte = mk_pte_phys(__pa(new_page), PAGE_RW); + pte_val(pte) |= _SEGMENT_ENTRY_LARGE; + pmd_val(*pm_dir) = pte_val(pte); + address = (address + PMD_SIZE) & PMD_MASK; + continue; + } +#endif pt_dir = vmem_pte_alloc(address); if (!pt_dir) goto out; pmd_populate(&init_mm, pm_dir, pt_dir); + } else if (pmd_large(*pm_dir)) { + address = (address + PMD_SIZE) & PMD_MASK; + continue; } pt_dir = pte_offset_kernel(pm_dir, address); @@ -228,6 +263,7 @@ int __meminit vmemmap_populate(struct page *start, unsigned long nr, int node) pte = pfn_pte(new_page >> PAGE_SHIFT, PAGE_KERNEL); *pt_dir = pte; } + address += PAGE_SIZE; } memset(start, 0, nr * sizeof(struct page)); ret = 0; diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c index 9b355b406af..bb284419b0f 100644 --- a/arch/s390/net/bpf_jit_comp.c +++ b/arch/s390/net/bpf_jit_comp.c @@ -341,6 +341,27 @@ static int bpf_jit_insn(struct bpf_jit *jit, struct sock_filter *filter, /* lr %r5,%r4 */ EMIT2(0x1854); break; + case BPF_S_ALU_MOD_X: /* A %= X */ + jit->seen |= SEEN_XREG | SEEN_RET0; + /* ltr %r12,%r12 */ + EMIT2(0x12cc); + /* jz <ret0> */ + EMIT4_PCREL(0xa7840000, (jit->ret0_ip - jit->prg)); + /* lhi %r4,0 */ + EMIT4(0xa7480000); + /* dr %r4,%r12 */ + EMIT2(0x1d4c); + /* lr %r5,%r4 */ + EMIT2(0x1854); + break; + case BPF_S_ALU_MOD_K: /* A %= K */ + /* lhi %r4,0 */ + EMIT4(0xa7480000); + /* d %r4,<d(K)>(%r13) */ + EMIT4_DISP(0x5d40d000, EMIT_CONST(K)); + /* lr %r5,%r4 */ + EMIT2(0x1854); + break; case BPF_S_ALU_AND_X: /* A &= X */ jit->seen |= SEEN_XREG; /* nr %r5,%r12 */ @@ -368,10 +389,17 @@ static int bpf_jit_insn(struct bpf_jit *jit, struct sock_filter *filter, EMIT4_DISP(0x5650d000, EMIT_CONST(K)); break; case BPF_S_ANC_ALU_XOR_X: /* A ^= X; */ + case BPF_S_ALU_XOR_X: jit->seen |= SEEN_XREG; /* xr %r5,%r12 */ EMIT2(0x175c); break; + case BPF_S_ALU_XOR_K: /* A ^= K */ + if (!K) + break; + /* x %r5,<d(K)>(%r13) */ + EMIT4_DISP(0x5750d000, EMIT_CONST(K)); + break; case BPF_S_ALU_LSH_X: /* A <<= X; */ jit->seen |= SEEN_XREG; /* sll %r5,0(%r12) */ diff --git a/arch/s390/pci/Makefile b/arch/s390/pci/Makefile new file mode 100644 index 00000000000..ab0827b6bc4 --- /dev/null +++ b/arch/s390/pci/Makefile @@ -0,0 +1,6 @@ +# +# Makefile for the s390 PCI subsystem. +# + +obj-$(CONFIG_PCI) += pci.o pci_dma.o pci_clp.o pci_msi.o \ + pci_sysfs.o pci_event.o diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c new file mode 100644 index 00000000000..7ed38e5e302 --- /dev/null +++ b/arch/s390/pci/pci.c @@ -0,0 +1,1103 @@ +/* + * Copyright IBM Corp. 2012 + * + * Author(s): + * Jan Glauber <jang@linux.vnet.ibm.com> + * + * The System z PCI code is a rewrite from a prototype by + * the following people (Kudoz!): + * Alexander Schmidt + * Christoph Raisch + * Hannes Hering + * Hoang-Nam Nguyen + * Jan-Bernd Themann + * Stefan Roscher + * Thomas Klein + */ + +#define COMPONENT "zPCI" +#define pr_fmt(fmt) COMPONENT ": " fmt + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/err.h> +#include <linux/export.h> +#include <linux/delay.h> +#include <linux/irq.h> +#include <linux/kernel_stat.h> +#include <linux/seq_file.h> +#include <linux/pci.h> +#include <linux/msi.h> + +#include <asm/isc.h> +#include <asm/airq.h> +#include <asm/facility.h> +#include <asm/pci_insn.h> +#include <asm/pci_clp.h> +#include <asm/pci_dma.h> + +#define DEBUG /* enable pr_debug */ + +#define SIC_IRQ_MODE_ALL 0 +#define SIC_IRQ_MODE_SINGLE 1 + +#define ZPCI_NR_DMA_SPACES 1 +#define ZPCI_MSI_VEC_BITS 6 +#define ZPCI_NR_DEVICES CONFIG_PCI_NR_FUNCTIONS + +/* list of all detected zpci devices */ +LIST_HEAD(zpci_list); +EXPORT_SYMBOL_GPL(zpci_list); +DEFINE_MUTEX(zpci_list_lock); +EXPORT_SYMBOL_GPL(zpci_list_lock); + +struct pci_hp_callback_ops hotplug_ops; +EXPORT_SYMBOL_GPL(hotplug_ops); + +static DECLARE_BITMAP(zpci_domain, ZPCI_NR_DEVICES); +static DEFINE_SPINLOCK(zpci_domain_lock); + +struct callback { + irq_handler_t handler; + void *data; +}; + +struct zdev_irq_map { + unsigned long aibv; /* AI bit vector */ + int msi_vecs; /* consecutive MSI-vectors used */ + int __unused; + struct callback cb[ZPCI_NR_MSI_VECS]; /* callback handler array */ + spinlock_t lock; /* protect callbacks against de-reg */ +}; + +struct intr_bucket { + /* amap of adapters, one bit per dev, corresponds to one irq nr */ + unsigned long *alloc; + /* AI summary bit, global page for all devices */ + unsigned long *aisb; + /* pointer to aibv and callback data in zdev */ + struct zdev_irq_map *imap[ZPCI_NR_DEVICES]; + /* protects the whole bucket struct */ + spinlock_t lock; +}; + +static struct intr_bucket *bucket; + +/* Adapter local summary indicator */ +static u8 *zpci_irq_si; + +static atomic_t irq_retries = ATOMIC_INIT(0); + +/* I/O Map */ +static DEFINE_SPINLOCK(zpci_iomap_lock); +static DECLARE_BITMAP(zpci_iomap, ZPCI_IOMAP_MAX_ENTRIES); +struct zpci_iomap_entry *zpci_iomap_start; +EXPORT_SYMBOL_GPL(zpci_iomap_start); + +/* highest irq summary bit */ +static int __read_mostly aisb_max; + +static struct kmem_cache *zdev_irq_cache; + +static inline int irq_to_msi_nr(unsigned int irq) +{ + return irq & ZPCI_MSI_MASK; +} + +static inline int irq_to_dev_nr(unsigned int irq) +{ + return irq >> ZPCI_MSI_VEC_BITS; +} + +static inline struct zdev_irq_map *get_imap(unsigned int irq) +{ + return bucket->imap[irq_to_dev_nr(irq)]; +} + +struct zpci_dev *get_zdev(struct pci_dev *pdev) +{ + return (struct zpci_dev *) pdev->sysdata; +} + +struct zpci_dev *get_zdev_by_fid(u32 fid) +{ + struct zpci_dev *tmp, *zdev = NULL; + + mutex_lock(&zpci_list_lock); + list_for_each_entry(tmp, &zpci_list, entry) { + if (tmp->fid == fid) { + zdev = tmp; + break; + } + } + mutex_unlock(&zpci_list_lock); + return zdev; +} + +bool zpci_fid_present(u32 fid) +{ + return (get_zdev_by_fid(fid) != NULL) ? true : false; +} + +static struct zpci_dev *get_zdev_by_bus(struct pci_bus *bus) +{ + return (bus && bus->sysdata) ? (struct zpci_dev *) bus->sysdata : NULL; +} + +int pci_domain_nr(struct pci_bus *bus) +{ + return ((struct zpci_dev *) bus->sysdata)->domain; +} +EXPORT_SYMBOL_GPL(pci_domain_nr); + +int pci_proc_domain(struct pci_bus *bus) +{ + return pci_domain_nr(bus); +} +EXPORT_SYMBOL_GPL(pci_proc_domain); + +/* Store PCI function information block */ +static int zpci_store_fib(struct zpci_dev *zdev, u8 *fc) +{ + struct zpci_fib *fib; + u8 status, cc; + + fib = (void *) get_zeroed_page(GFP_KERNEL); + if (!fib) + return -ENOMEM; + + do { + cc = __stpcifc(zdev->fh, 0, fib, &status); + if (cc == 2) { + msleep(ZPCI_INSN_BUSY_DELAY); + memset(fib, 0, PAGE_SIZE); + } + } while (cc == 2); + + if (cc) + pr_err_once("%s: cc: %u status: %u\n", + __func__, cc, status); + + /* Return PCI function controls */ + *fc = fib->fc; + + free_page((unsigned long) fib); + return (cc) ? -EIO : 0; +} + +/* Modify PCI: Register adapter interruptions */ +static int zpci_register_airq(struct zpci_dev *zdev, unsigned int aisb, + u64 aibv) +{ + u64 req = ZPCI_CREATE_REQ(zdev->fh, 0, ZPCI_MOD_FC_REG_INT); + struct zpci_fib *fib; + int rc; + + fib = (void *) get_zeroed_page(GFP_KERNEL); + if (!fib) + return -ENOMEM; + + fib->isc = PCI_ISC; + fib->noi = zdev->irq_map->msi_vecs; + fib->sum = 1; /* enable summary notifications */ + fib->aibv = aibv; + fib->aibvo = 0; /* every function has its own page */ + fib->aisb = (u64) bucket->aisb + aisb / 8; + fib->aisbo = aisb & ZPCI_MSI_MASK; + + rc = mpcifc_instr(req, fib); + pr_debug("%s mpcifc returned noi: %d\n", __func__, fib->noi); + + free_page((unsigned long) fib); + return rc; +} + +struct mod_pci_args { + u64 base; + u64 limit; + u64 iota; +}; + +static int mod_pci(struct zpci_dev *zdev, int fn, u8 dmaas, struct mod_pci_args *args) +{ + u64 req = ZPCI_CREATE_REQ(zdev->fh, dmaas, fn); + struct zpci_fib *fib; + int rc; + + /* The FIB must be available even if it's not used */ + fib = (void *) get_zeroed_page(GFP_KERNEL); + if (!fib) + return -ENOMEM; + + fib->pba = args->base; + fib->pal = args->limit; + fib->iota = args->iota; + + rc = mpcifc_instr(req, fib); + free_page((unsigned long) fib); + return rc; +} + +/* Modify PCI: Register I/O address translation parameters */ +int zpci_register_ioat(struct zpci_dev *zdev, u8 dmaas, + u64 base, u64 limit, u64 iota) +{ + struct mod_pci_args args = { base, limit, iota }; + + WARN_ON_ONCE(iota & 0x3fff); + args.iota |= ZPCI_IOTA_RTTO_FLAG; + return mod_pci(zdev, ZPCI_MOD_FC_REG_IOAT, dmaas, &args); +} + +/* Modify PCI: Unregister I/O address translation parameters */ +int zpci_unregister_ioat(struct zpci_dev *zdev, u8 dmaas) +{ + struct mod_pci_args args = { 0, 0, 0 }; + + return mod_pci(zdev, ZPCI_MOD_FC_DEREG_IOAT, dmaas, &args); +} + +/* Modify PCI: Unregister adapter interruptions */ +static int zpci_unregister_airq(struct zpci_dev *zdev) +{ + struct mod_pci_args args = { 0, 0, 0 }; + + return mod_pci(zdev, ZPCI_MOD_FC_DEREG_INT, 0, &args); +} + +#define ZPCI_PCIAS_CFGSPC 15 + +static int zpci_cfg_load(struct zpci_dev *zdev, int offset, u32 *val, u8 len) +{ + u64 req = ZPCI_CREATE_REQ(zdev->fh, ZPCI_PCIAS_CFGSPC, len); + u64 data; + int rc; + + rc = pcilg_instr(&data, req, offset); + data = data << ((8 - len) * 8); + data = le64_to_cpu(data); + if (!rc) + *val = (u32) data; + else + *val = 0xffffffff; + return rc; +} + +static int zpci_cfg_store(struct zpci_dev *zdev, int offset, u32 val, u8 len) +{ + u64 req = ZPCI_CREATE_REQ(zdev->fh, ZPCI_PCIAS_CFGSPC, len); + u64 data = val; + int rc; + + data = cpu_to_le64(data); + data = data >> ((8 - len) * 8); + rc = pcistg_instr(data, req, offset); + return rc; +} + +void synchronize_irq(unsigned int irq) +{ + /* + * Not needed, the handler is protected by a lock and IRQs that occur + * after the handler is deleted are just NOPs. + */ +} +EXPORT_SYMBOL_GPL(synchronize_irq); + +void enable_irq(unsigned int irq) +{ + struct msi_desc *msi = irq_get_msi_desc(irq); + + zpci_msi_set_mask_bits(msi, 1, 0); +} +EXPORT_SYMBOL_GPL(enable_irq); + +void disable_irq(unsigned int irq) +{ + struct msi_desc *msi = irq_get_msi_desc(irq); + + zpci_msi_set_mask_bits(msi, 1, 1); +} +EXPORT_SYMBOL_GPL(disable_irq); + +void disable_irq_nosync(unsigned int irq) +{ + disable_irq(irq); +} +EXPORT_SYMBOL_GPL(disable_irq_nosync); + +unsigned long probe_irq_on(void) +{ + return 0; +} +EXPORT_SYMBOL_GPL(probe_irq_on); + +int probe_irq_off(unsigned long val) +{ + return 0; +} +EXPORT_SYMBOL_GPL(probe_irq_off); + +unsigned int probe_irq_mask(unsigned long val) +{ + return val; +} +EXPORT_SYMBOL_GPL(probe_irq_mask); + +void __devinit pcibios_fixup_bus(struct pci_bus *bus) +{ +} + +resource_size_t pcibios_align_resource(void *data, const struct resource *res, + resource_size_t size, + resource_size_t align) +{ + return 0; +} + +/* combine single writes by using store-block insn */ +void __iowrite64_copy(void __iomem *to, const void *from, size_t count) +{ + zpci_memcpy_toio(to, from, count); +} + +/* Create a virtual mapping cookie for a PCI BAR */ +void __iomem *pci_iomap(struct pci_dev *pdev, int bar, unsigned long max) +{ + struct zpci_dev *zdev = get_zdev(pdev); + u64 addr; + int idx; + + if ((bar & 7) != bar) + return NULL; + + idx = zdev->bars[bar].map_idx; + spin_lock(&zpci_iomap_lock); + zpci_iomap_start[idx].fh = zdev->fh; + zpci_iomap_start[idx].bar = bar; + spin_unlock(&zpci_iomap_lock); + + addr = ZPCI_IOMAP_ADDR_BASE | ((u64) idx << 48); + return (void __iomem *) addr; +} +EXPORT_SYMBOL_GPL(pci_iomap); + +void pci_iounmap(struct pci_dev *pdev, void __iomem *addr) +{ + unsigned int idx; + + idx = (((__force u64) addr) & ~ZPCI_IOMAP_ADDR_BASE) >> 48; + spin_lock(&zpci_iomap_lock); + zpci_iomap_start[idx].fh = 0; + zpci_iomap_start[idx].bar = 0; + spin_unlock(&zpci_iomap_lock); +} +EXPORT_SYMBOL_GPL(pci_iounmap); + +static int pci_read(struct pci_bus *bus, unsigned int devfn, int where, + int size, u32 *val) +{ + struct zpci_dev *zdev = get_zdev_by_bus(bus); + + if (!zdev || devfn != ZPCI_DEVFN) + return 0; + return zpci_cfg_load(zdev, where, val, size); +} + +static int pci_write(struct pci_bus *bus, unsigned int devfn, int where, + int size, u32 val) +{ + struct zpci_dev *zdev = get_zdev_by_bus(bus); + + if (!zdev || devfn != ZPCI_DEVFN) + return 0; + return zpci_cfg_store(zdev, where, val, size); +} + +static struct pci_ops pci_root_ops = { + .read = pci_read, + .write = pci_write, +}; + +/* store the last handled bit to implement fair scheduling of devices */ +static DEFINE_PER_CPU(unsigned long, next_sbit); + +static void zpci_irq_handler(void *dont, void *need) +{ + unsigned long sbit, mbit, last = 0, start = __get_cpu_var(next_sbit); + int rescan = 0, max = aisb_max; + struct zdev_irq_map *imap; + + kstat_cpu(smp_processor_id()).irqs[IOINT_PCI]++; + sbit = start; + +scan: + /* find summary_bit */ + for_each_set_bit_left_cont(sbit, bucket->aisb, max) { + clear_bit(63 - (sbit & 63), bucket->aisb + (sbit >> 6)); + last = sbit; + + /* find vector bit */ + imap = bucket->imap[sbit]; + for_each_set_bit_left(mbit, &imap->aibv, imap->msi_vecs) { + kstat_cpu(smp_processor_id()).irqs[IOINT_MSI]++; + clear_bit(63 - mbit, &imap->aibv); + + spin_lock(&imap->lock); + if (imap->cb[mbit].handler) + imap->cb[mbit].handler(mbit, + imap->cb[mbit].data); + spin_unlock(&imap->lock); + } + } + + if (rescan) + goto out; + + /* scan the skipped bits */ + if (start > 0) { + sbit = 0; + max = start; + start = 0; + goto scan; + } + + /* enable interrupts again */ + sic_instr(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC); + + /* check again to not lose initiative */ + rmb(); + max = aisb_max; + sbit = find_first_bit_left(bucket->aisb, max); + if (sbit != max) { + atomic_inc(&irq_retries); + rescan++; + goto scan; + } +out: + /* store next device bit to scan */ + __get_cpu_var(next_sbit) = (++last >= aisb_max) ? 0 : last; +} + +/* msi_vecs - number of requested interrupts, 0 place function to error state */ +static int zpci_setup_msi(struct pci_dev *pdev, int msi_vecs) +{ + struct zpci_dev *zdev = get_zdev(pdev); + unsigned int aisb, msi_nr; + struct msi_desc *msi; + int rc; + + /* store the number of used MSI vectors */ + zdev->irq_map->msi_vecs = min(msi_vecs, ZPCI_NR_MSI_VECS); + + spin_lock(&bucket->lock); + aisb = find_first_zero_bit(bucket->alloc, PAGE_SIZE); + /* alloc map exhausted? */ + if (aisb == PAGE_SIZE) { + spin_unlock(&bucket->lock); + return -EIO; + } + set_bit(aisb, bucket->alloc); + spin_unlock(&bucket->lock); + + zdev->aisb = aisb; + if (aisb + 1 > aisb_max) + aisb_max = aisb + 1; + + /* wire up IRQ shortcut pointer */ + bucket->imap[zdev->aisb] = zdev->irq_map; + pr_debug("%s: imap[%u] linked to %p\n", __func__, zdev->aisb, zdev->irq_map); + + /* TODO: irq number 0 wont be found if we return less than requested MSIs. + * ignore it for now and fix in common code. + */ + msi_nr = aisb << ZPCI_MSI_VEC_BITS; + + list_for_each_entry(msi, &pdev->msi_list, list) { + rc = zpci_setup_msi_irq(zdev, msi, msi_nr, + aisb << ZPCI_MSI_VEC_BITS); + if (rc) + return rc; + msi_nr++; + } + + rc = zpci_register_airq(zdev, aisb, (u64) &zdev->irq_map->aibv); + if (rc) { + clear_bit(aisb, bucket->alloc); + dev_err(&pdev->dev, "register MSI failed with: %d\n", rc); + return rc; + } + return (zdev->irq_map->msi_vecs == msi_vecs) ? + 0 : zdev->irq_map->msi_vecs; +} + +static void zpci_teardown_msi(struct pci_dev *pdev) +{ + struct zpci_dev *zdev = get_zdev(pdev); + struct msi_desc *msi; + int aisb, rc; + + rc = zpci_unregister_airq(zdev); + if (rc) { + dev_err(&pdev->dev, "deregister MSI failed with: %d\n", rc); + return; + } + + msi = list_first_entry(&pdev->msi_list, struct msi_desc, list); + aisb = irq_to_dev_nr(msi->irq); + + list_for_each_entry(msi, &pdev->msi_list, list) + zpci_teardown_msi_irq(zdev, msi); + + clear_bit(aisb, bucket->alloc); + if (aisb + 1 == aisb_max) + aisb_max--; +} + +int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) +{ + pr_debug("%s: requesting %d MSI-X interrupts...", __func__, nvec); + if (type != PCI_CAP_ID_MSIX && type != PCI_CAP_ID_MSI) + return -EINVAL; + return zpci_setup_msi(pdev, nvec); +} + +void arch_teardown_msi_irqs(struct pci_dev *pdev) +{ + pr_info("%s: on pdev: %p\n", __func__, pdev); + zpci_teardown_msi(pdev); +} + +static void zpci_map_resources(struct zpci_dev *zdev) +{ + struct pci_dev *pdev = zdev->pdev; + resource_size_t len; + int i; + + for (i = 0; i < PCI_BAR_COUNT; i++) { + len = pci_resource_len(pdev, i); + if (!len) + continue; + pdev->resource[i].start = (resource_size_t) pci_iomap(pdev, i, 0); + pdev->resource[i].end = pdev->resource[i].start + len - 1; + pr_debug("BAR%i: -> start: %Lx end: %Lx\n", + i, pdev->resource[i].start, pdev->resource[i].end); + } +}; + +static void zpci_unmap_resources(struct pci_dev *pdev) +{ + resource_size_t len; + int i; + + for (i = 0; i < PCI_BAR_COUNT; i++) { + len = pci_resource_len(pdev, i); + if (!len) + continue; + pci_iounmap(pdev, (void *) pdev->resource[i].start); + } +}; + +struct zpci_dev *zpci_alloc_device(void) +{ + struct zpci_dev *zdev; + + /* Alloc memory for our private pci device data */ + zdev = kzalloc(sizeof(*zdev), GFP_KERNEL); + if (!zdev) + return ERR_PTR(-ENOMEM); + + /* Alloc aibv & callback space */ + zdev->irq_map = kmem_cache_zalloc(zdev_irq_cache, GFP_KERNEL); + if (!zdev->irq_map) + goto error; + WARN_ON((u64) zdev->irq_map & 0xff); + return zdev; + +error: + kfree(zdev); + return ERR_PTR(-ENOMEM); +} + +void zpci_free_device(struct zpci_dev *zdev) +{ + kmem_cache_free(zdev_irq_cache, zdev->irq_map); + kfree(zdev); +} + +/* Called on removal of pci_dev, leaves zpci and bus device */ +static void zpci_remove_device(struct pci_dev *pdev) +{ + struct zpci_dev *zdev = get_zdev(pdev); + + dev_info(&pdev->dev, "Removing device %u\n", zdev->domain); + zdev->state = ZPCI_FN_STATE_CONFIGURED; + zpci_dma_exit_device(zdev); + zpci_sysfs_remove_device(&pdev->dev); + zpci_unmap_resources(pdev); + list_del(&zdev->entry); /* can be called from init */ + zdev->pdev = NULL; +} + +static void zpci_scan_devices(void) +{ + struct zpci_dev *zdev; + + mutex_lock(&zpci_list_lock); + list_for_each_entry(zdev, &zpci_list, entry) + if (zdev->state == ZPCI_FN_STATE_CONFIGURED) + zpci_scan_device(zdev); + mutex_unlock(&zpci_list_lock); +} + +/* + * Too late for any s390 specific setup, since interrupts must be set up + * already which requires DMA setup too and the pci scan will access the + * config space, which only works if the function handle is enabled. + */ +int pcibios_enable_device(struct pci_dev *pdev, int mask) +{ + struct resource *res; + u16 cmd; + int i; + + pci_read_config_word(pdev, PCI_COMMAND, &cmd); + + for (i = 0; i < PCI_BAR_COUNT; i++) { + res = &pdev->resource[i]; + + if (res->flags & IORESOURCE_IO) + return -EINVAL; + + if (res->flags & IORESOURCE_MEM) + cmd |= PCI_COMMAND_MEMORY; + } + pci_write_config_word(pdev, PCI_COMMAND, cmd); + return 0; +} + +void pcibios_disable_device(struct pci_dev *pdev) +{ + zpci_remove_device(pdev); + pdev->sysdata = NULL; +} + +int pcibios_add_platform_entries(struct pci_dev *pdev) +{ + return zpci_sysfs_add_device(&pdev->dev); +} + +int zpci_request_irq(unsigned int irq, irq_handler_t handler, void *data) +{ + int msi_nr = irq_to_msi_nr(irq); + struct zdev_irq_map *imap; + struct msi_desc *msi; + + msi = irq_get_msi_desc(irq); + if (!msi) + return -EIO; + + imap = get_imap(irq); + spin_lock_init(&imap->lock); + + pr_debug("%s: register handler for IRQ:MSI %d:%d\n", __func__, irq >> 6, msi_nr); + imap->cb[msi_nr].handler = handler; + imap->cb[msi_nr].data = data; + + /* + * The generic MSI code returns with the interrupt disabled on the + * card, using the MSI mask bits. Firmware doesn't appear to unmask + * at that level, so we do it here by hand. + */ + zpci_msi_set_mask_bits(msi, 1, 0); + return 0; +} + +void zpci_free_irq(unsigned int irq) +{ + struct zdev_irq_map *imap = get_imap(irq); + int msi_nr = irq_to_msi_nr(irq); + unsigned long flags; + + pr_debug("%s: for irq: %d\n", __func__, irq); + + spin_lock_irqsave(&imap->lock, flags); + imap->cb[msi_nr].handler = NULL; + imap->cb[msi_nr].data = NULL; + spin_unlock_irqrestore(&imap->lock, flags); +} + +int request_irq(unsigned int irq, irq_handler_t handler, + unsigned long irqflags, const char *devname, void *dev_id) +{ + pr_debug("%s: irq: %d handler: %p flags: %lx dev: %s\n", + __func__, irq, handler, irqflags, devname); + + return zpci_request_irq(irq, handler, dev_id); +} +EXPORT_SYMBOL_GPL(request_irq); + +void free_irq(unsigned int irq, void *dev_id) +{ + zpci_free_irq(irq); +} +EXPORT_SYMBOL_GPL(free_irq); + +static int __init zpci_irq_init(void) +{ + int cpu, rc; + + bucket = kzalloc(sizeof(*bucket), GFP_KERNEL); + if (!bucket) + return -ENOMEM; + + bucket->aisb = (unsigned long *) get_zeroed_page(GFP_KERNEL); + if (!bucket->aisb) { + rc = -ENOMEM; + goto out_aisb; + } + + bucket->alloc = (unsigned long *) get_zeroed_page(GFP_KERNEL); + if (!bucket->alloc) { + rc = -ENOMEM; + goto out_alloc; + } + + isc_register(PCI_ISC); + zpci_irq_si = s390_register_adapter_interrupt(&zpci_irq_handler, NULL, PCI_ISC); + if (IS_ERR(zpci_irq_si)) { + rc = PTR_ERR(zpci_irq_si); + zpci_irq_si = NULL; + goto out_ai; + } + + for_each_online_cpu(cpu) + per_cpu(next_sbit, cpu) = 0; + + spin_lock_init(&bucket->lock); + /* set summary to 1 to be called every time for the ISC */ + *zpci_irq_si = 1; + sic_instr(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC); + return 0; + +out_ai: + isc_unregister(PCI_ISC); + free_page((unsigned long) bucket->alloc); +out_alloc: + free_page((unsigned long) bucket->aisb); +out_aisb: + kfree(bucket); + return rc; +} + +static void zpci_irq_exit(void) +{ + free_page((unsigned long) bucket->alloc); + free_page((unsigned long) bucket->aisb); + s390_unregister_adapter_interrupt(zpci_irq_si, PCI_ISC); + isc_unregister(PCI_ISC); + kfree(bucket); +} + +static struct resource *zpci_alloc_bus_resource(unsigned long start, unsigned long size, + unsigned long flags, int domain) +{ + struct resource *r; + char *name; + int rc; + + r = kzalloc(sizeof(*r), GFP_KERNEL); + if (!r) + return ERR_PTR(-ENOMEM); + r->start = start; + r->end = r->start + size - 1; + r->flags = flags; + r->parent = &iomem_resource; + name = kmalloc(18, GFP_KERNEL); + if (!name) { + kfree(r); + return ERR_PTR(-ENOMEM); + } + sprintf(name, "PCI Bus: %04x:%02x", domain, ZPCI_BUS_NR); + r->name = name; + + rc = request_resource(&iomem_resource, r); + if (rc) + pr_debug("request resource %pR failed\n", r); + return r; +} + +static int zpci_alloc_iomap(struct zpci_dev *zdev) +{ + int entry; + + spin_lock(&zpci_iomap_lock); + entry = find_first_zero_bit(zpci_iomap, ZPCI_IOMAP_MAX_ENTRIES); + if (entry == ZPCI_IOMAP_MAX_ENTRIES) { + spin_unlock(&zpci_iomap_lock); + return -ENOSPC; + } + set_bit(entry, zpci_iomap); + spin_unlock(&zpci_iomap_lock); + return entry; +} + +static void zpci_free_iomap(struct zpci_dev *zdev, int entry) +{ + spin_lock(&zpci_iomap_lock); + memset(&zpci_iomap_start[entry], 0, sizeof(struct zpci_iomap_entry)); + clear_bit(entry, zpci_iomap); + spin_unlock(&zpci_iomap_lock); +} + +static int zpci_create_device_bus(struct zpci_dev *zdev) +{ + struct resource *res; + LIST_HEAD(resources); + int i; + + /* allocate mapping entry for each used bar */ + for (i = 0; i < PCI_BAR_COUNT; i++) { + unsigned long addr, size, flags; + int entry; + + if (!zdev->bars[i].size) + continue; + entry = zpci_alloc_iomap(zdev); + if (entry < 0) + return entry; + zdev->bars[i].map_idx = entry; + + /* only MMIO is supported */ + flags = IORESOURCE_MEM; + if (zdev->bars[i].val & 8) + flags |= IORESOURCE_PREFETCH; + if (zdev->bars[i].val & 4) + flags |= IORESOURCE_MEM_64; + + addr = ZPCI_IOMAP_ADDR_BASE + ((u64) entry << 48); + + size = 1UL << zdev->bars[i].size; + + res = zpci_alloc_bus_resource(addr, size, flags, zdev->domain); + if (IS_ERR(res)) { + zpci_free_iomap(zdev, entry); + return PTR_ERR(res); + } + pci_add_resource(&resources, res); + } + + zdev->bus = pci_create_root_bus(NULL, ZPCI_BUS_NR, &pci_root_ops, + zdev, &resources); + if (!zdev->bus) + return -EIO; + + zdev->bus->max_bus_speed = zdev->max_bus_speed; + return 0; +} + +static int zpci_alloc_domain(struct zpci_dev *zdev) +{ + spin_lock(&zpci_domain_lock); + zdev->domain = find_first_zero_bit(zpci_domain, ZPCI_NR_DEVICES); + if (zdev->domain == ZPCI_NR_DEVICES) { + spin_unlock(&zpci_domain_lock); + return -ENOSPC; + } + set_bit(zdev->domain, zpci_domain); + spin_unlock(&zpci_domain_lock); + return 0; +} + +static void zpci_free_domain(struct zpci_dev *zdev) +{ + spin_lock(&zpci_domain_lock); + clear_bit(zdev->domain, zpci_domain); + spin_unlock(&zpci_domain_lock); +} + +int zpci_enable_device(struct zpci_dev *zdev) +{ + int rc; + + rc = clp_enable_fh(zdev, ZPCI_NR_DMA_SPACES); + if (rc) + goto out; + pr_info("Enabled fh: 0x%x fid: 0x%x\n", zdev->fh, zdev->fid); + + rc = zpci_dma_init_device(zdev); + if (rc) + goto out_dma; + return 0; + +out_dma: + clp_disable_fh(zdev); +out: + return rc; +} +EXPORT_SYMBOL_GPL(zpci_enable_device); + +int zpci_create_device(struct zpci_dev *zdev) +{ + int rc; + + rc = zpci_alloc_domain(zdev); + if (rc) + goto out; + + rc = zpci_create_device_bus(zdev); + if (rc) + goto out_bus; + + mutex_lock(&zpci_list_lock); + list_add_tail(&zdev->entry, &zpci_list); + if (hotplug_ops.create_slot) + hotplug_ops.create_slot(zdev); + mutex_unlock(&zpci_list_lock); + + if (zdev->state == ZPCI_FN_STATE_STANDBY) + return 0; + + rc = zpci_enable_device(zdev); + if (rc) + goto out_start; + return 0; + +out_start: + mutex_lock(&zpci_list_lock); + list_del(&zdev->entry); + if (hotplug_ops.remove_slot) + hotplug_ops.remove_slot(zdev); + mutex_unlock(&zpci_list_lock); +out_bus: + zpci_free_domain(zdev); +out: + return rc; +} + +void zpci_stop_device(struct zpci_dev *zdev) +{ + zpci_dma_exit_device(zdev); + /* + * Note: SCLP disables fh via set-pci-fn so don't + * do that here. + */ +} +EXPORT_SYMBOL_GPL(zpci_stop_device); + +int zpci_scan_device(struct zpci_dev *zdev) +{ + zdev->pdev = pci_scan_single_device(zdev->bus, ZPCI_DEVFN); + if (!zdev->pdev) { + pr_err("pci_scan_single_device failed for fid: 0x%x\n", + zdev->fid); + goto out; + } + + zpci_map_resources(zdev); + pci_bus_add_devices(zdev->bus); + + /* now that pdev was added to the bus mark it as used */ + zdev->state = ZPCI_FN_STATE_ONLINE; + return 0; + +out: + zpci_dma_exit_device(zdev); + clp_disable_fh(zdev); + return -EIO; +} +EXPORT_SYMBOL_GPL(zpci_scan_device); + +static inline int barsize(u8 size) +{ + return (size) ? (1 << size) >> 10 : 0; +} + +static int zpci_mem_init(void) +{ + zdev_irq_cache = kmem_cache_create("PCI_IRQ_cache", sizeof(struct zdev_irq_map), + L1_CACHE_BYTES, SLAB_HWCACHE_ALIGN, NULL); + if (!zdev_irq_cache) + goto error_zdev; + + /* TODO: use realloc */ + zpci_iomap_start = kzalloc(ZPCI_IOMAP_MAX_ENTRIES * sizeof(*zpci_iomap_start), + GFP_KERNEL); + if (!zpci_iomap_start) + goto error_iomap; + return 0; + +error_iomap: + kmem_cache_destroy(zdev_irq_cache); +error_zdev: + return -ENOMEM; +} + +static void zpci_mem_exit(void) +{ + kfree(zpci_iomap_start); + kmem_cache_destroy(zdev_irq_cache); +} + +unsigned int pci_probe = 1; +EXPORT_SYMBOL_GPL(pci_probe); + +char * __init pcibios_setup(char *str) +{ + if (!strcmp(str, "off")) { + pci_probe = 0; + return NULL; + } + return str; +} + +static int __init pci_base_init(void) +{ + int rc; + + if (!pci_probe) + return 0; + + if (!test_facility(2) || !test_facility(69) + || !test_facility(71) || !test_facility(72)) + return 0; + + pr_info("Probing PCI hardware: PCI:%d SID:%d AEN:%d\n", + test_facility(69), test_facility(70), + test_facility(71)); + + rc = zpci_mem_init(); + if (rc) + goto out_mem; + + rc = zpci_msihash_init(); + if (rc) + goto out_hash; + + rc = zpci_irq_init(); + if (rc) + goto out_irq; + + rc = zpci_dma_init(); + if (rc) + goto out_dma; + + rc = clp_find_pci_devices(); + if (rc) + goto out_find; + + zpci_scan_devices(); + return 0; + +out_find: + zpci_dma_exit(); +out_dma: + zpci_irq_exit(); +out_irq: + zpci_msihash_exit(); +out_hash: + zpci_mem_exit(); +out_mem: + return rc; +} +subsys_initcall(pci_base_init); diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c new file mode 100644 index 00000000000..7f4ce8d874a --- /dev/null +++ b/arch/s390/pci/pci_clp.c @@ -0,0 +1,324 @@ +/* + * Copyright IBM Corp. 2012 + * + * Author(s): + * Jan Glauber <jang@linux.vnet.ibm.com> + */ + +#define COMPONENT "zPCI" +#define pr_fmt(fmt) COMPONENT ": " fmt + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/err.h> +#include <linux/delay.h> +#include <linux/pci.h> +#include <asm/pci_clp.h> + +/* + * Call Logical Processor + * Retry logic is handled by the caller. + */ +static inline u8 clp_instr(void *req) +{ + u64 ilpm; + u8 cc; + + asm volatile ( + " .insn rrf,0xb9a00000,%[ilpm],%[req],0x0,0x2\n" + " ipm %[cc]\n" + " srl %[cc],28\n" + : [cc] "=d" (cc), [ilpm] "=d" (ilpm) + : [req] "a" (req) + : "cc", "memory"); + return cc; +} + +static void *clp_alloc_block(void) +{ + struct page *page = alloc_pages(GFP_KERNEL, get_order(CLP_BLK_SIZE)); + return (page) ? page_address(page) : NULL; +} + +static void clp_free_block(void *ptr) +{ + free_pages((unsigned long) ptr, get_order(CLP_BLK_SIZE)); +} + +static void clp_store_query_pci_fngrp(struct zpci_dev *zdev, + struct clp_rsp_query_pci_grp *response) +{ + zdev->tlb_refresh = response->refresh; + zdev->dma_mask = response->dasm; + zdev->msi_addr = response->msia; + + pr_debug("Supported number of MSI vectors: %u\n", response->noi); + switch (response->version) { + case 1: + zdev->max_bus_speed = PCIE_SPEED_5_0GT; + break; + default: + zdev->max_bus_speed = PCI_SPEED_UNKNOWN; + break; + } +} + +static int clp_query_pci_fngrp(struct zpci_dev *zdev, u8 pfgid) +{ + struct clp_req_rsp_query_pci_grp *rrb; + int rc; + + rrb = clp_alloc_block(); + if (!rrb) + return -ENOMEM; + + memset(rrb, 0, sizeof(*rrb)); + rrb->request.hdr.len = sizeof(rrb->request); + rrb->request.hdr.cmd = CLP_QUERY_PCI_FNGRP; + rrb->response.hdr.len = sizeof(rrb->response); + rrb->request.pfgid = pfgid; + + rc = clp_instr(rrb); + if (!rc && rrb->response.hdr.rsp == CLP_RC_OK) + clp_store_query_pci_fngrp(zdev, &rrb->response); + else { + pr_err("Query PCI FNGRP failed with response: %x cc: %d\n", + rrb->response.hdr.rsp, rc); + rc = -EIO; + } + clp_free_block(rrb); + return rc; +} + +static int clp_store_query_pci_fn(struct zpci_dev *zdev, + struct clp_rsp_query_pci *response) +{ + int i; + + for (i = 0; i < PCI_BAR_COUNT; i++) { + zdev->bars[i].val = le32_to_cpu(response->bar[i]); + zdev->bars[i].size = response->bar_size[i]; + } + zdev->start_dma = response->sdma; + zdev->end_dma = response->edma; + zdev->pchid = response->pchid; + zdev->pfgid = response->pfgid; + return 0; +} + +static int clp_query_pci_fn(struct zpci_dev *zdev, u32 fh) +{ + struct clp_req_rsp_query_pci *rrb; + int rc; + + rrb = clp_alloc_block(); + if (!rrb) + return -ENOMEM; + + memset(rrb, 0, sizeof(*rrb)); + rrb->request.hdr.len = sizeof(rrb->request); + rrb->request.hdr.cmd = CLP_QUERY_PCI_FN; + rrb->response.hdr.len = sizeof(rrb->response); + rrb->request.fh = fh; + + rc = clp_instr(rrb); + if (!rc && rrb->response.hdr.rsp == CLP_RC_OK) { + rc = clp_store_query_pci_fn(zdev, &rrb->response); + if (rc) + goto out; + if (rrb->response.pfgid) + rc = clp_query_pci_fngrp(zdev, rrb->response.pfgid); + } else { + pr_err("Query PCI failed with response: %x cc: %d\n", + rrb->response.hdr.rsp, rc); + rc = -EIO; + } +out: + clp_free_block(rrb); + return rc; +} + +int clp_add_pci_device(u32 fid, u32 fh, int configured) +{ + struct zpci_dev *zdev; + int rc; + + zdev = zpci_alloc_device(); + if (IS_ERR(zdev)) + return PTR_ERR(zdev); + + zdev->fh = fh; + zdev->fid = fid; + + /* Query function properties and update zdev */ + rc = clp_query_pci_fn(zdev, fh); + if (rc) + goto error; + + if (configured) + zdev->state = ZPCI_FN_STATE_CONFIGURED; + else + zdev->state = ZPCI_FN_STATE_STANDBY; + + rc = zpci_create_device(zdev); + if (rc) + goto error; + return 0; + +error: + zpci_free_device(zdev); + return rc; +} + +/* + * Enable/Disable a given PCI function defined by its function handle. + */ +static int clp_set_pci_fn(u32 *fh, u8 nr_dma_as, u8 command) +{ + struct clp_req_rsp_set_pci *rrb; + int rc, retries = 1000; + + rrb = clp_alloc_block(); + if (!rrb) + return -ENOMEM; + + do { + memset(rrb, 0, sizeof(*rrb)); + rrb->request.hdr.len = sizeof(rrb->request); + rrb->request.hdr.cmd = CLP_SET_PCI_FN; + rrb->response.hdr.len = sizeof(rrb->response); + rrb->request.fh = *fh; + rrb->request.oc = command; + rrb->request.ndas = nr_dma_as; + + rc = clp_instr(rrb); + if (rrb->response.hdr.rsp == CLP_RC_SETPCIFN_BUSY) { + retries--; + if (retries < 0) + break; + msleep(1); + } + } while (rrb->response.hdr.rsp == CLP_RC_SETPCIFN_BUSY); + + if (!rc && rrb->response.hdr.rsp == CLP_RC_OK) + *fh = rrb->response.fh; + else { + pr_err("Set PCI FN failed with response: %x cc: %d\n", + rrb->response.hdr.rsp, rc); + rc = -EIO; + } + clp_free_block(rrb); + return rc; +} + +int clp_enable_fh(struct zpci_dev *zdev, u8 nr_dma_as) +{ + u32 fh = zdev->fh; + int rc; + + rc = clp_set_pci_fn(&fh, nr_dma_as, CLP_SET_ENABLE_PCI_FN); + if (!rc) + /* Success -> store enabled handle in zdev */ + zdev->fh = fh; + return rc; +} + +int clp_disable_fh(struct zpci_dev *zdev) +{ + u32 fh = zdev->fh; + int rc; + + if (!zdev_enabled(zdev)) + return 0; + + dev_info(&zdev->pdev->dev, "disabling fn handle: 0x%x\n", fh); + rc = clp_set_pci_fn(&fh, 0, CLP_SET_DISABLE_PCI_FN); + if (!rc) + /* Success -> store disabled handle in zdev */ + zdev->fh = fh; + else + dev_err(&zdev->pdev->dev, + "Failed to disable fn handle: 0x%x\n", fh); + return rc; +} + +static void clp_check_pcifn_entry(struct clp_fh_list_entry *entry) +{ + int present, rc; + + if (!entry->vendor_id) + return; + + /* TODO: be a little bit more scalable */ + present = zpci_fid_present(entry->fid); + + if (present) + pr_debug("%s: device %x already present\n", __func__, entry->fid); + + /* skip already used functions */ + if (present && entry->config_state) + return; + + /* aev 306: function moved to stand-by state */ + if (present && !entry->config_state) { + /* + * The handle is already disabled, that means no iota/irq freeing via + * the firmware interfaces anymore. Need to free resources manually + * (DMA memory, debug, sysfs)... + */ + zpci_stop_device(get_zdev_by_fid(entry->fid)); + return; + } + + rc = clp_add_pci_device(entry->fid, entry->fh, entry->config_state); + if (rc) + pr_err("Failed to add fid: 0x%x\n", entry->fid); +} + +int clp_find_pci_devices(void) +{ + struct clp_req_rsp_list_pci *rrb; + u64 resume_token = 0; + int entries, i, rc; + + rrb = clp_alloc_block(); + if (!rrb) + return -ENOMEM; + + do { + memset(rrb, 0, sizeof(*rrb)); + rrb->request.hdr.len = sizeof(rrb->request); + rrb->request.hdr.cmd = CLP_LIST_PCI; + /* store as many entries as possible */ + rrb->response.hdr.len = CLP_BLK_SIZE - LIST_PCI_HDR_LEN; + rrb->request.resume_token = resume_token; + + /* Get PCI function handle list */ + rc = clp_instr(rrb); + if (rc || rrb->response.hdr.rsp != CLP_RC_OK) { + pr_err("List PCI failed with response: 0x%x cc: %d\n", + rrb->response.hdr.rsp, rc); + rc = -EIO; + goto out; + } + + WARN_ON_ONCE(rrb->response.entry_size != + sizeof(struct clp_fh_list_entry)); + + entries = (rrb->response.hdr.len - LIST_PCI_HDR_LEN) / + rrb->response.entry_size; + pr_info("Detected number of PCI functions: %u\n", entries); + + /* Store the returned resume token as input for the next call */ + resume_token = rrb->response.resume_token; + + for (i = 0; i < entries; i++) + clp_check_pcifn_entry(&rrb->response.fh_list[i]); + } while (resume_token); + + pr_debug("Maximum number of supported PCI functions: %u\n", + rrb->response.max_fn); +out: + clp_free_block(rrb); + return rc; +} diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c new file mode 100644 index 00000000000..c64b4b294b0 --- /dev/null +++ b/arch/s390/pci/pci_dma.c @@ -0,0 +1,506 @@ +/* + * Copyright IBM Corp. 2012 + * + * Author(s): + * Jan Glauber <jang@linux.vnet.ibm.com> + */ + +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/export.h> +#include <linux/iommu-helper.h> +#include <linux/dma-mapping.h> +#include <linux/pci.h> +#include <asm/pci_dma.h> + +static enum zpci_ioat_dtype zpci_ioat_dt = ZPCI_IOTA_RTTO; + +static struct kmem_cache *dma_region_table_cache; +static struct kmem_cache *dma_page_table_cache; + +static unsigned long *dma_alloc_cpu_table(void) +{ + unsigned long *table, *entry; + + table = kmem_cache_alloc(dma_region_table_cache, GFP_ATOMIC); + if (!table) + return NULL; + + for (entry = table; entry < table + ZPCI_TABLE_ENTRIES; entry++) + *entry = ZPCI_TABLE_INVALID | ZPCI_TABLE_PROTECTED; + return table; +} + +static void dma_free_cpu_table(void *table) +{ + kmem_cache_free(dma_region_table_cache, table); +} + +static unsigned long *dma_alloc_page_table(void) +{ + unsigned long *table, *entry; + + table = kmem_cache_alloc(dma_page_table_cache, GFP_ATOMIC); + if (!table) + return NULL; + + for (entry = table; entry < table + ZPCI_PT_ENTRIES; entry++) + *entry = ZPCI_PTE_INVALID | ZPCI_TABLE_PROTECTED; + return table; +} + +static void dma_free_page_table(void *table) +{ + kmem_cache_free(dma_page_table_cache, table); +} + +static unsigned long *dma_get_seg_table_origin(unsigned long *entry) +{ + unsigned long *sto; + + if (reg_entry_isvalid(*entry)) + sto = get_rt_sto(*entry); + else { + sto = dma_alloc_cpu_table(); + if (!sto) + return NULL; + + set_rt_sto(entry, sto); + validate_rt_entry(entry); + entry_clr_protected(entry); + } + return sto; +} + +static unsigned long *dma_get_page_table_origin(unsigned long *entry) +{ + unsigned long *pto; + + if (reg_entry_isvalid(*entry)) + pto = get_st_pto(*entry); + else { + pto = dma_alloc_page_table(); + if (!pto) + return NULL; + set_st_pto(entry, pto); + validate_st_entry(entry); + entry_clr_protected(entry); + } + return pto; +} + +static unsigned long *dma_walk_cpu_trans(unsigned long *rto, dma_addr_t dma_addr) +{ + unsigned long *sto, *pto; + unsigned int rtx, sx, px; + + rtx = calc_rtx(dma_addr); + sto = dma_get_seg_table_origin(&rto[rtx]); + if (!sto) + return NULL; + + sx = calc_sx(dma_addr); + pto = dma_get_page_table_origin(&sto[sx]); + if (!pto) + return NULL; + + px = calc_px(dma_addr); + return &pto[px]; +} + +static void dma_update_cpu_trans(struct zpci_dev *zdev, void *page_addr, + dma_addr_t dma_addr, int flags) +{ + unsigned long *entry; + + entry = dma_walk_cpu_trans(zdev->dma_table, dma_addr); + if (!entry) { + WARN_ON_ONCE(1); + return; + } + + if (flags & ZPCI_PTE_INVALID) { + invalidate_pt_entry(entry); + return; + } else { + set_pt_pfaa(entry, page_addr); + validate_pt_entry(entry); + } + + if (flags & ZPCI_TABLE_PROTECTED) + entry_set_protected(entry); + else + entry_clr_protected(entry); +} + +static int dma_update_trans(struct zpci_dev *zdev, unsigned long pa, + dma_addr_t dma_addr, size_t size, int flags) +{ + unsigned int nr_pages = PAGE_ALIGN(size) >> PAGE_SHIFT; + u8 *page_addr = (u8 *) (pa & PAGE_MASK); + dma_addr_t start_dma_addr = dma_addr; + unsigned long irq_flags; + int i, rc = 0; + + if (!nr_pages) + return -EINVAL; + + spin_lock_irqsave(&zdev->dma_table_lock, irq_flags); + if (!zdev->dma_table) { + dev_err(&zdev->pdev->dev, "Missing DMA table\n"); + goto no_refresh; + } + + for (i = 0; i < nr_pages; i++) { + dma_update_cpu_trans(zdev, page_addr, dma_addr, flags); + page_addr += PAGE_SIZE; + dma_addr += PAGE_SIZE; + } + + /* + * rpcit is not required to establish new translations when previously + * invalid translation-table entries are validated, however it is + * required when altering previously valid entries. + */ + if (!zdev->tlb_refresh && + ((flags & ZPCI_PTE_VALID_MASK) == ZPCI_PTE_VALID)) + /* + * TODO: also need to check that the old entry is indeed INVALID + * and not only for one page but for the whole range... + * -> now we WARN_ON in that case but with lazy unmap that + * needs to be redone! + */ + goto no_refresh; + rc = rpcit_instr((u64) zdev->fh << 32, start_dma_addr, + nr_pages * PAGE_SIZE); + +no_refresh: + spin_unlock_irqrestore(&zdev->dma_table_lock, irq_flags); + return rc; +} + +static void dma_free_seg_table(unsigned long entry) +{ + unsigned long *sto = get_rt_sto(entry); + int sx; + + for (sx = 0; sx < ZPCI_TABLE_ENTRIES; sx++) + if (reg_entry_isvalid(sto[sx])) + dma_free_page_table(get_st_pto(sto[sx])); + + dma_free_cpu_table(sto); +} + +static void dma_cleanup_tables(struct zpci_dev *zdev) +{ + unsigned long *table; + int rtx; + + if (!zdev || !zdev->dma_table) + return; + + table = zdev->dma_table; + for (rtx = 0; rtx < ZPCI_TABLE_ENTRIES; rtx++) + if (reg_entry_isvalid(table[rtx])) + dma_free_seg_table(table[rtx]); + + dma_free_cpu_table(table); + zdev->dma_table = NULL; +} + +static unsigned long __dma_alloc_iommu(struct zpci_dev *zdev, unsigned long start, + int size) +{ + unsigned long boundary_size = 0x1000000; + + return iommu_area_alloc(zdev->iommu_bitmap, zdev->iommu_pages, + start, size, 0, boundary_size, 0); +} + +static unsigned long dma_alloc_iommu(struct zpci_dev *zdev, int size) +{ + unsigned long offset, flags; + + spin_lock_irqsave(&zdev->iommu_bitmap_lock, flags); + offset = __dma_alloc_iommu(zdev, zdev->next_bit, size); + if (offset == -1) + offset = __dma_alloc_iommu(zdev, 0, size); + + if (offset != -1) { + zdev->next_bit = offset + size; + if (zdev->next_bit >= zdev->iommu_pages) + zdev->next_bit = 0; + } + spin_unlock_irqrestore(&zdev->iommu_bitmap_lock, flags); + return offset; +} + +static void dma_free_iommu(struct zpci_dev *zdev, unsigned long offset, int size) +{ + unsigned long flags; + + spin_lock_irqsave(&zdev->iommu_bitmap_lock, flags); + if (!zdev->iommu_bitmap) + goto out; + bitmap_clear(zdev->iommu_bitmap, offset, size); + if (offset >= zdev->next_bit) + zdev->next_bit = offset + size; +out: + spin_unlock_irqrestore(&zdev->iommu_bitmap_lock, flags); +} + +int dma_set_mask(struct device *dev, u64 mask) +{ + if (!dev->dma_mask || !dma_supported(dev, mask)) + return -EIO; + + *dev->dma_mask = mask; + return 0; +} +EXPORT_SYMBOL_GPL(dma_set_mask); + +static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page, + unsigned long offset, size_t size, + enum dma_data_direction direction, + struct dma_attrs *attrs) +{ + struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + unsigned long nr_pages, iommu_page_index; + unsigned long pa = page_to_phys(page) + offset; + int flags = ZPCI_PTE_VALID; + dma_addr_t dma_addr; + + WARN_ON_ONCE(offset > PAGE_SIZE); + + /* This rounds up number of pages based on size and offset */ + nr_pages = iommu_num_pages(pa, size, PAGE_SIZE); + iommu_page_index = dma_alloc_iommu(zdev, nr_pages); + if (iommu_page_index == -1) + goto out_err; + + /* Use rounded up size */ + size = nr_pages * PAGE_SIZE; + + dma_addr = zdev->start_dma + iommu_page_index * PAGE_SIZE; + if (dma_addr + size > zdev->end_dma) { + dev_err(dev, "(dma_addr: 0x%16.16LX + size: 0x%16.16lx) > end_dma: 0x%16.16Lx\n", + dma_addr, size, zdev->end_dma); + goto out_free; + } + + if (direction == DMA_NONE || direction == DMA_TO_DEVICE) + flags |= ZPCI_TABLE_PROTECTED; + + if (!dma_update_trans(zdev, pa, dma_addr, size, flags)) + return dma_addr + offset; + +out_free: + dma_free_iommu(zdev, iommu_page_index, nr_pages); +out_err: + dev_err(dev, "Failed to map addr: %lx\n", pa); + return DMA_ERROR_CODE; +} + +static void s390_dma_unmap_pages(struct device *dev, dma_addr_t dma_addr, + size_t size, enum dma_data_direction direction, + struct dma_attrs *attrs) +{ + struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + unsigned long iommu_page_index; + int npages; + + npages = iommu_num_pages(dma_addr, size, PAGE_SIZE); + dma_addr = dma_addr & PAGE_MASK; + if (dma_update_trans(zdev, 0, dma_addr, npages * PAGE_SIZE, + ZPCI_TABLE_PROTECTED | ZPCI_PTE_INVALID)) + dev_err(dev, "Failed to unmap addr: %Lx\n", dma_addr); + + iommu_page_index = (dma_addr - zdev->start_dma) >> PAGE_SHIFT; + dma_free_iommu(zdev, iommu_page_index, npages); +} + +static void *s390_dma_alloc(struct device *dev, size_t size, + dma_addr_t *dma_handle, gfp_t flag, + struct dma_attrs *attrs) +{ + struct page *page; + unsigned long pa; + dma_addr_t map; + + size = PAGE_ALIGN(size); + page = alloc_pages(flag, get_order(size)); + if (!page) + return NULL; + pa = page_to_phys(page); + memset((void *) pa, 0, size); + + map = s390_dma_map_pages(dev, page, pa % PAGE_SIZE, + size, DMA_BIDIRECTIONAL, NULL); + if (dma_mapping_error(dev, map)) { + free_pages(pa, get_order(size)); + return NULL; + } + + if (dma_handle) + *dma_handle = map; + return (void *) pa; +} + +static void s390_dma_free(struct device *dev, size_t size, + void *pa, dma_addr_t dma_handle, + struct dma_attrs *attrs) +{ + s390_dma_unmap_pages(dev, dma_handle, PAGE_ALIGN(size), + DMA_BIDIRECTIONAL, NULL); + free_pages((unsigned long) pa, get_order(size)); +} + +static int s390_dma_map_sg(struct device *dev, struct scatterlist *sg, + int nr_elements, enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + int mapped_elements = 0; + struct scatterlist *s; + int i; + + for_each_sg(sg, s, nr_elements, i) { + struct page *page = sg_page(s); + s->dma_address = s390_dma_map_pages(dev, page, s->offset, + s->length, dir, NULL); + if (!dma_mapping_error(dev, s->dma_address)) { + s->dma_length = s->length; + mapped_elements++; + } else + goto unmap; + } +out: + return mapped_elements; + +unmap: + for_each_sg(sg, s, mapped_elements, i) { + if (s->dma_address) + s390_dma_unmap_pages(dev, s->dma_address, s->dma_length, + dir, NULL); + s->dma_address = 0; + s->dma_length = 0; + } + mapped_elements = 0; + goto out; +} + +static void s390_dma_unmap_sg(struct device *dev, struct scatterlist *sg, + int nr_elements, enum dma_data_direction dir, + struct dma_attrs *attrs) +{ + struct scatterlist *s; + int i; + + for_each_sg(sg, s, nr_elements, i) { + s390_dma_unmap_pages(dev, s->dma_address, s->dma_length, dir, NULL); + s->dma_address = 0; + s->dma_length = 0; + } +} + +int zpci_dma_init_device(struct zpci_dev *zdev) +{ + unsigned int bitmap_order; + int rc; + + spin_lock_init(&zdev->iommu_bitmap_lock); + spin_lock_init(&zdev->dma_table_lock); + + zdev->dma_table = dma_alloc_cpu_table(); + if (!zdev->dma_table) { + rc = -ENOMEM; + goto out_clean; + } + + zdev->iommu_size = (unsigned long) high_memory - PAGE_OFFSET; + zdev->iommu_pages = zdev->iommu_size >> PAGE_SHIFT; + bitmap_order = get_order(zdev->iommu_pages / 8); + pr_info("iommu_size: 0x%lx iommu_pages: 0x%lx bitmap_order: %i\n", + zdev->iommu_size, zdev->iommu_pages, bitmap_order); + + zdev->iommu_bitmap = (void *) __get_free_pages(GFP_KERNEL | __GFP_ZERO, + bitmap_order); + if (!zdev->iommu_bitmap) { + rc = -ENOMEM; + goto out_reg; + } + + rc = zpci_register_ioat(zdev, + 0, + zdev->start_dma + PAGE_OFFSET, + zdev->start_dma + zdev->iommu_size - 1, + (u64) zdev->dma_table); + if (rc) + goto out_reg; + return 0; + +out_reg: + dma_free_cpu_table(zdev->dma_table); +out_clean: + return rc; +} + +void zpci_dma_exit_device(struct zpci_dev *zdev) +{ + zpci_unregister_ioat(zdev, 0); + dma_cleanup_tables(zdev); + free_pages((unsigned long) zdev->iommu_bitmap, + get_order(zdev->iommu_pages / 8)); + zdev->iommu_bitmap = NULL; + zdev->next_bit = 0; +} + +static int __init dma_alloc_cpu_table_caches(void) +{ + dma_region_table_cache = kmem_cache_create("PCI_DMA_region_tables", + ZPCI_TABLE_SIZE, ZPCI_TABLE_ALIGN, + 0, NULL); + if (!dma_region_table_cache) + return -ENOMEM; + + dma_page_table_cache = kmem_cache_create("PCI_DMA_page_tables", + ZPCI_PT_SIZE, ZPCI_PT_ALIGN, + 0, NULL); + if (!dma_page_table_cache) { + kmem_cache_destroy(dma_region_table_cache); + return -ENOMEM; + } + return 0; +} + +int __init zpci_dma_init(void) +{ + return dma_alloc_cpu_table_caches(); +} + +void zpci_dma_exit(void) +{ + kmem_cache_destroy(dma_page_table_cache); + kmem_cache_destroy(dma_region_table_cache); +} + +#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16) + +static int __init dma_debug_do_init(void) +{ + dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES); + return 0; +} +fs_initcall(dma_debug_do_init); + +struct dma_map_ops s390_dma_ops = { + .alloc = s390_dma_alloc, + .free = s390_dma_free, + .map_sg = s390_dma_map_sg, + .unmap_sg = s390_dma_unmap_sg, + .map_page = s390_dma_map_pages, + .unmap_page = s390_dma_unmap_pages, + /* if we support direct DMA this must be conditional */ + .is_phys = 0, + /* dma_supported is unconditionally true without a callback */ +}; +EXPORT_SYMBOL_GPL(s390_dma_ops); diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c new file mode 100644 index 00000000000..dbed8cd3370 --- /dev/null +++ b/arch/s390/pci/pci_event.c @@ -0,0 +1,93 @@ +/* + * Copyright IBM Corp. 2012 + * + * Author(s): + * Jan Glauber <jang@linux.vnet.ibm.com> + */ + +#define COMPONENT "zPCI" +#define pr_fmt(fmt) COMPONENT ": " fmt + +#include <linux/kernel.h> +#include <linux/pci.h> + +/* Content Code Description for PCI Function Error */ +struct zpci_ccdf_err { + u32 reserved1; + u32 fh; /* function handle */ + u32 fid; /* function id */ + u32 ett : 4; /* expected table type */ + u32 mvn : 12; /* MSI vector number */ + u32 dmaas : 8; /* DMA address space */ + u32 : 6; + u32 q : 1; /* event qualifier */ + u32 rw : 1; /* read/write */ + u64 faddr; /* failing address */ + u32 reserved3; + u16 reserved4; + u16 pec; /* PCI event code */ +} __packed; + +/* Content Code Description for PCI Function Availability */ +struct zpci_ccdf_avail { + u32 reserved1; + u32 fh; /* function handle */ + u32 fid; /* function id */ + u32 reserved2; + u32 reserved3; + u32 reserved4; + u32 reserved5; + u16 reserved6; + u16 pec; /* PCI event code */ +} __packed; + +static void zpci_event_log_err(struct zpci_ccdf_err *ccdf) +{ + struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid); + + dev_err(&zdev->pdev->dev, "event code: 0x%x\n", ccdf->pec); +} + +static void zpci_event_log_avail(struct zpci_ccdf_avail *ccdf) +{ + struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid); + + pr_err("%s%s: availability event: fh: 0x%x fid: 0x%x event code: 0x%x reason:", + (zdev) ? dev_driver_string(&zdev->pdev->dev) : "?", + (zdev) ? dev_name(&zdev->pdev->dev) : "?", + ccdf->fh, ccdf->fid, ccdf->pec); + print_hex_dump(KERN_CONT, "ccdf", DUMP_PREFIX_OFFSET, + 16, 1, ccdf, sizeof(*ccdf), false); + + switch (ccdf->pec) { + case 0x0301: + zpci_enable_device(zdev); + break; + case 0x0302: + clp_add_pci_device(ccdf->fid, ccdf->fh, 0); + break; + case 0x0306: + clp_find_pci_devices(); + break; + default: + break; + } +} + +void zpci_event_error(void *data) +{ + struct zpci_ccdf_err *ccdf = data; + struct zpci_dev *zdev; + + zpci_event_log_err(ccdf); + zdev = get_zdev_by_fid(ccdf->fid); + if (!zdev) { + pr_err("Error event for unknown fid: %x", ccdf->fid); + return; + } +} + +void zpci_event_availability(void *data) +{ + zpci_event_log_avail(data); +} diff --git a/arch/s390/pci/pci_msi.c b/arch/s390/pci/pci_msi.c new file mode 100644 index 00000000000..90fd3482b9e --- /dev/null +++ b/arch/s390/pci/pci_msi.c @@ -0,0 +1,141 @@ +/* + * Copyright IBM Corp. 2012 + * + * Author(s): + * Jan Glauber <jang@linux.vnet.ibm.com> + */ + +#define COMPONENT "zPCI" +#define pr_fmt(fmt) COMPONENT ": " fmt + +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/rculist.h> +#include <linux/hash.h> +#include <linux/pci.h> +#include <linux/msi.h> +#include <asm/hw_irq.h> + +/* mapping of irq numbers to msi_desc */ +static struct hlist_head *msi_hash; +static unsigned int msihash_shift = 6; +#define msi_hashfn(nr) hash_long(nr, msihash_shift) + +static DEFINE_SPINLOCK(msi_map_lock); + +struct msi_desc *__irq_get_msi_desc(unsigned int irq) +{ + struct hlist_node *entry; + struct msi_map *map; + + hlist_for_each_entry_rcu(map, entry, + &msi_hash[msi_hashfn(irq)], msi_chain) + if (map->irq == irq) + return map->msi; + return NULL; +} + +int zpci_msi_set_mask_bits(struct msi_desc *msi, u32 mask, u32 flag) +{ + if (msi->msi_attrib.is_msix) { + int offset = msi->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE + + PCI_MSIX_ENTRY_VECTOR_CTRL; + msi->masked = readl(msi->mask_base + offset); + writel(flag, msi->mask_base + offset); + } else { + if (msi->msi_attrib.maskbit) { + int pos; + u32 mask_bits; + + pos = (long) msi->mask_base; + pci_read_config_dword(msi->dev, pos, &mask_bits); + mask_bits &= ~(mask); + mask_bits |= flag & mask; + pci_write_config_dword(msi->dev, pos, mask_bits); + } else { + return 0; + } + } + + msi->msi_attrib.maskbit = !!flag; + return 1; +} + +int zpci_setup_msi_irq(struct zpci_dev *zdev, struct msi_desc *msi, + unsigned int nr, int offset) +{ + struct msi_map *map; + struct msi_msg msg; + int rc; + + map = kmalloc(sizeof(*map), GFP_KERNEL); + if (map == NULL) + return -ENOMEM; + + map->irq = nr; + map->msi = msi; + zdev->msi_map[nr & ZPCI_MSI_MASK] = map; + + pr_debug("%s hashing irq: %u to bucket nr: %llu\n", + __func__, nr, msi_hashfn(nr)); + hlist_add_head_rcu(&map->msi_chain, &msi_hash[msi_hashfn(nr)]); + + spin_lock(&msi_map_lock); + rc = irq_set_msi_desc(nr, msi); + if (rc) { + spin_unlock(&msi_map_lock); + hlist_del_rcu(&map->msi_chain); + kfree(map); + zdev->msi_map[nr & ZPCI_MSI_MASK] = NULL; + return rc; + } + spin_unlock(&msi_map_lock); + + msg.data = nr - offset; + msg.address_lo = zdev->msi_addr & 0xffffffff; + msg.address_hi = zdev->msi_addr >> 32; + write_msi_msg(nr, &msg); + return 0; +} + +void zpci_teardown_msi_irq(struct zpci_dev *zdev, struct msi_desc *msi) +{ + int irq = msi->irq & ZPCI_MSI_MASK; + struct msi_map *map; + + msi->msg.address_lo = 0; + msi->msg.address_hi = 0; + msi->msg.data = 0; + msi->irq = 0; + zpci_msi_set_mask_bits(msi, 1, 1); + + spin_lock(&msi_map_lock); + map = zdev->msi_map[irq]; + hlist_del_rcu(&map->msi_chain); + kfree(map); + zdev->msi_map[irq] = NULL; + spin_unlock(&msi_map_lock); +} + +/* + * The msi hash table has 256 entries which is good for 4..20 + * devices (a typical device allocates 10 + CPUs MSI's). Maybe make + * the hash table size adjustable later. + */ +int __init zpci_msihash_init(void) +{ + unsigned int i; + + msi_hash = kmalloc(256 * sizeof(*msi_hash), GFP_KERNEL); + if (!msi_hash) + return -ENOMEM; + + for (i = 0; i < (1U << msihash_shift); i++) + INIT_HLIST_HEAD(&msi_hash[i]); + return 0; +} + +void __init zpci_msihash_exit(void) +{ + kfree(msi_hash); +} diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c new file mode 100644 index 00000000000..a42cce69d0a --- /dev/null +++ b/arch/s390/pci/pci_sysfs.c @@ -0,0 +1,86 @@ +/* + * Copyright IBM Corp. 2012 + * + * Author(s): + * Jan Glauber <jang@linux.vnet.ibm.com> + */ + +#define COMPONENT "zPCI" +#define pr_fmt(fmt) COMPONENT ": " fmt + +#include <linux/kernel.h> +#include <linux/stat.h> +#include <linux/pci.h> + +static ssize_t show_fid(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + + sprintf(buf, "0x%08x\n", zdev->fid); + return strlen(buf); +} +static DEVICE_ATTR(function_id, S_IRUGO, show_fid, NULL); + +static ssize_t show_fh(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + + sprintf(buf, "0x%08x\n", zdev->fh); + return strlen(buf); +} +static DEVICE_ATTR(function_handle, S_IRUGO, show_fh, NULL); + +static ssize_t show_pchid(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + + sprintf(buf, "0x%04x\n", zdev->pchid); + return strlen(buf); +} +static DEVICE_ATTR(pchid, S_IRUGO, show_pchid, NULL); + +static ssize_t show_pfgid(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct zpci_dev *zdev = get_zdev(container_of(dev, struct pci_dev, dev)); + + sprintf(buf, "0x%02x\n", zdev->pfgid); + return strlen(buf); +} +static DEVICE_ATTR(pfgid, S_IRUGO, show_pfgid, NULL); + +static struct device_attribute *zpci_dev_attrs[] = { + &dev_attr_function_id, + &dev_attr_function_handle, + &dev_attr_pchid, + &dev_attr_pfgid, + NULL, +}; + +int zpci_sysfs_add_device(struct device *dev) +{ + int i, rc = 0; + + for (i = 0; zpci_dev_attrs[i]; i++) { + rc = device_create_file(dev, zpci_dev_attrs[i]); + if (rc) + goto error; + } + return 0; + +error: + while (--i >= 0) + device_remove_file(dev, zpci_dev_attrs[i]); + return rc; +} + +void zpci_sysfs_remove_device(struct device *dev) +{ + int i; + + for (i = 0; zpci_dev_attrs[i]; i++) + device_remove_file(dev, zpci_dev_attrs[i]); +} diff --git a/drivers/gpu/vga/Kconfig b/drivers/gpu/vga/Kconfig index f34838839b0..29437eabe09 100644 --- a/drivers/gpu/vga/Kconfig +++ b/drivers/gpu/vga/Kconfig @@ -1,7 +1,7 @@ config VGA_ARB bool "VGA Arbitration" if EXPERT default y - depends on PCI + depends on (PCI && !S390) help Some "legacy" VGA devices implemented on PCI typically have the same hard-decoded addresses as they did on ISA. When multiple PCI devices diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig index b0e46dede1a..13e9e63a726 100644 --- a/drivers/pci/hotplug/Kconfig +++ b/drivers/pci/hotplug/Kconfig @@ -151,4 +151,15 @@ config HOTPLUG_PCI_SGI When in doubt, say N. +config HOTPLUG_PCI_S390 + tristate "System z PCI Hotplug Support" + depends on S390 && 64BIT + help + Say Y here if you want to use the System z PCI Hotplug + driver for PCI devices. Without this driver it is not + possible to access stand-by PCI functions nor to deconfigure + PCI functions. + + When in doubt, say Y. + endif # HOTPLUG_PCI diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile index c459cd4e39c..47ec8c80e16 100644 --- a/drivers/pci/hotplug/Makefile +++ b/drivers/pci/hotplug/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_HOTPLUG_PCI_RPA) += rpaphp.o obj-$(CONFIG_HOTPLUG_PCI_RPA_DLPAR) += rpadlpar_io.o obj-$(CONFIG_HOTPLUG_PCI_SGI) += sgi_hotplug.o obj-$(CONFIG_HOTPLUG_PCI_ACPI) += acpiphp.o +obj-$(CONFIG_HOTPLUG_PCI_S390) += s390_pci_hpc.o # acpiphp_ibm extends acpiphp, so should be linked afterwards. diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c new file mode 100644 index 00000000000..dee68e0698e --- /dev/null +++ b/drivers/pci/hotplug/s390_pci_hpc.c @@ -0,0 +1,252 @@ +/* + * PCI Hot Plug Controller Driver for System z + * + * Copyright 2012 IBM Corp. + * + * Author(s): + * Jan Glauber <jang@linux.vnet.ibm.com> + */ + +#define COMPONENT "zPCI hpc" +#define pr_fmt(fmt) COMPONENT ": " fmt + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/pci.h> +#include <linux/pci_hotplug.h> +#include <linux/init.h> +#include <asm/sclp.h> + +#define SLOT_NAME_SIZE 10 +static LIST_HEAD(s390_hotplug_slot_list); + +MODULE_AUTHOR("Jan Glauber <jang@linux.vnet.ibm.com"); +MODULE_DESCRIPTION("Hot Plug PCI Controller for System z"); +MODULE_LICENSE("GPL"); + +static int zpci_fn_configured(enum zpci_state state) +{ + return state == ZPCI_FN_STATE_CONFIGURED || + state == ZPCI_FN_STATE_ONLINE; +} + +/* + * struct slot - slot information for each *physical* slot + */ +struct slot { + struct list_head slot_list; + struct hotplug_slot *hotplug_slot; + struct zpci_dev *zdev; +}; + +static int enable_slot(struct hotplug_slot *hotplug_slot) +{ + struct slot *slot = hotplug_slot->private; + int rc; + + if (slot->zdev->state != ZPCI_FN_STATE_STANDBY) + return -EIO; + + rc = sclp_pci_configure(slot->zdev->fid); + if (!rc) { + slot->zdev->state = ZPCI_FN_STATE_CONFIGURED; + /* automatically scan the device after is was configured */ + zpci_enable_device(slot->zdev); + zpci_scan_device(slot->zdev); + } + return rc; +} + +static int disable_slot(struct hotplug_slot *hotplug_slot) +{ + struct slot *slot = hotplug_slot->private; + int rc; + + if (!zpci_fn_configured(slot->zdev->state)) + return -EIO; + + /* TODO: we rely on the user to unbind/remove the device, is that plausible + * or do we need to trigger that here? + */ + rc = sclp_pci_deconfigure(slot->zdev->fid); + if (!rc) { + /* Fixme: better call List-PCI to find the disabled FH + for the FID since the FH should be opaque... */ + slot->zdev->fh &= 0x7fffffff; + slot->zdev->state = ZPCI_FN_STATE_STANDBY; + } + return rc; +} + +static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value) +{ + struct slot *slot = hotplug_slot->private; + + switch (slot->zdev->state) { + case ZPCI_FN_STATE_STANDBY: + *value = 0; + break; + default: + *value = 1; + break; + } + return 0; +} + +static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value) +{ + /* if the slot exits it always contains a function */ + *value = 1; + return 0; +} + +static void release_slot(struct hotplug_slot *hotplug_slot) +{ + struct slot *slot = hotplug_slot->private; + + pr_debug("%s - physical_slot = %s\n", __func__, hotplug_slot_name(hotplug_slot)); + kfree(slot->hotplug_slot->info); + kfree(slot->hotplug_slot); + kfree(slot); +} + +static struct hotplug_slot_ops s390_hotplug_slot_ops = { + .enable_slot = enable_slot, + .disable_slot = disable_slot, + .get_power_status = get_power_status, + .get_adapter_status = get_adapter_status, +}; + +static int init_pci_slot(struct zpci_dev *zdev) +{ + struct hotplug_slot *hotplug_slot; + struct hotplug_slot_info *info; + char name[SLOT_NAME_SIZE]; + struct slot *slot; + int rc; + + if (!zdev) + return 0; + + slot = kzalloc(sizeof(*slot), GFP_KERNEL); + if (!slot) + goto error; + + hotplug_slot = kzalloc(sizeof(*hotplug_slot), GFP_KERNEL); + if (!hotplug_slot) + goto error_hp; + hotplug_slot->private = slot; + + slot->hotplug_slot = hotplug_slot; + slot->zdev = zdev; + + info = kzalloc(sizeof(*info), GFP_KERNEL); + if (!info) + goto error_info; + hotplug_slot->info = info; + + hotplug_slot->ops = &s390_hotplug_slot_ops; + hotplug_slot->release = &release_slot; + + get_power_status(hotplug_slot, &info->power_status); + get_adapter_status(hotplug_slot, &info->adapter_status); + + snprintf(name, SLOT_NAME_SIZE, "%08x", zdev->fid); + rc = pci_hp_register(slot->hotplug_slot, zdev->bus, + ZPCI_DEVFN, name); + if (rc) { + pr_err("pci_hp_register failed with error %d\n", rc); + goto error_reg; + } + list_add(&slot->slot_list, &s390_hotplug_slot_list); + return 0; + +error_reg: + kfree(info); +error_info: + kfree(hotplug_slot); +error_hp: + kfree(slot); +error: + return -ENOMEM; +} + +static int __init init_pci_slots(void) +{ + struct zpci_dev *zdev; + int device = 0; + + /* + * Create a structure for each slot, and register that slot + * with the pci_hotplug subsystem. + */ + mutex_lock(&zpci_list_lock); + list_for_each_entry(zdev, &zpci_list, entry) { + init_pci_slot(zdev); + device++; + } + + mutex_unlock(&zpci_list_lock); + return (device) ? 0 : -ENODEV; +} + +static void exit_pci_slot(struct zpci_dev *zdev) +{ + struct list_head *tmp, *n; + struct slot *slot; + + list_for_each_safe(tmp, n, &s390_hotplug_slot_list) { + slot = list_entry(tmp, struct slot, slot_list); + if (slot->zdev != zdev) + continue; + list_del(&slot->slot_list); + pci_hp_deregister(slot->hotplug_slot); + } +} + +static void __exit exit_pci_slots(void) +{ + struct list_head *tmp, *n; + struct slot *slot; + + /* + * Unregister all of our slots with the pci_hotplug subsystem. + * Memory will be freed in release_slot() callback after slot's + * lifespan is finished. + */ + list_for_each_safe(tmp, n, &s390_hotplug_slot_list) { + slot = list_entry(tmp, struct slot, slot_list); + list_del(&slot->slot_list); + pci_hp_deregister(slot->hotplug_slot); + } +} + +static int __init pci_hotplug_s390_init(void) +{ + /* + * Do specific initialization stuff for your driver here + * like initializing your controller hardware (if any) and + * determining the number of slots you have in the system + * right now. + */ + + if (!pci_probe) + return -EOPNOTSUPP; + + /* register callbacks for slot handling from arch code */ + mutex_lock(&zpci_list_lock); + hotplug_ops.create_slot = init_pci_slot; + hotplug_ops.remove_slot = exit_pci_slot; + mutex_unlock(&zpci_list_lock); + pr_info("registered hotplug slot callbacks\n"); + return init_pci_slots(); +} + +static void __exit pci_hotplug_s390_exit(void) +{ + exit_pci_slots(); +} + +module_init(pci_hotplug_s390_init); +module_exit(pci_hotplug_s390_exit); diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index a825d78fd0a..5099636a6e5 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -207,6 +207,8 @@ static void msix_mask_irq(struct msi_desc *desc, u32 flag) desc->masked = __msix_mask_irq(desc, flag); } +#ifdef CONFIG_GENERIC_HARDIRQS + static void msi_set_mask_bit(struct irq_data *data, u32 flag) { struct msi_desc *desc = irq_data_get_msi(data); @@ -230,6 +232,8 @@ void unmask_msi_irq(struct irq_data *data) msi_set_mask_bit(data, 0); } +#endif /* CONFIG_GENERIC_HARDIRQS */ + void __read_msi_msg(struct msi_desc *entry, struct msi_msg *msg) { BUG_ON(entry->dev->current_state != PCI_D0); @@ -337,8 +341,10 @@ static void free_msi_irqs(struct pci_dev *dev) if (!entry->irq) continue; nvec = 1 << entry->msi_attrib.multiple; +#ifdef CONFIG_GENERIC_HARDIRQS for (i = 0; i < nvec; i++) BUG_ON(irq_has_action(entry->irq + i)); +#endif } arch_teardown_msi_irqs(dev); diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index 0595c763daf..29225e1c159 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -349,6 +349,16 @@ static int dasd_state_basic_to_ready(struct dasd_device *device) return rc; } +static inline +int _wait_for_empty_queues(struct dasd_device *device) +{ + if (device->block) + return list_empty(&device->ccw_queue) && + list_empty(&device->block->ccw_queue); + else + return list_empty(&device->ccw_queue); +} + /* * Remove device from block device layer. Destroy dirty buffers. * Forget format information. Check if the target level is basic @@ -1841,6 +1851,13 @@ static void __dasd_device_check_expire(struct dasd_device *device) cqr = list_entry(device->ccw_queue.next, struct dasd_ccw_req, devlist); if ((cqr->status == DASD_CQR_IN_IO && cqr->expires != 0) && (time_after_eq(jiffies, cqr->expires + cqr->starttime))) { + if (test_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags)) { + /* + * IO in safe offline processing should not + * run out of retries + */ + cqr->retries++; + } if (device->discipline->term_IO(cqr) != 0) { /* Hmpf, try again in 5 sec */ dev_err(&device->cdev->dev, @@ -3024,11 +3041,11 @@ void dasd_generic_remove(struct ccw_device *cdev) cdev->handler = NULL; - dasd_remove_sysfs_files(cdev); device = dasd_device_from_cdev(cdev); if (IS_ERR(device)) return; - if (test_and_set_bit(DASD_FLAG_OFFLINE, &device->flags)) { + if (test_and_set_bit(DASD_FLAG_OFFLINE, &device->flags) && + !test_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags)) { /* Already doing offline processing */ dasd_put_device(device); return; @@ -3048,6 +3065,8 @@ void dasd_generic_remove(struct ccw_device *cdev) */ if (block) dasd_free_block(block); + + dasd_remove_sysfs_files(cdev); } /* @@ -3126,16 +3145,13 @@ int dasd_generic_set_offline(struct ccw_device *cdev) { struct dasd_device *device; struct dasd_block *block; - int max_count, open_count; + int max_count, open_count, rc; + rc = 0; device = dasd_device_from_cdev(cdev); if (IS_ERR(device)) return PTR_ERR(device); - if (test_and_set_bit(DASD_FLAG_OFFLINE, &device->flags)) { - /* Already doing offline processing */ - dasd_put_device(device); - return 0; - } + /* * We must make sure that this device is currently not in use. * The open_count is increased for every opener, that includes @@ -3159,6 +3175,54 @@ int dasd_generic_set_offline(struct ccw_device *cdev) return -EBUSY; } } + + if (test_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags)) { + /* + * safe offline allready running + * could only be called by normal offline so safe_offline flag + * needs to be removed to run normal offline and kill all I/O + */ + if (test_and_set_bit(DASD_FLAG_OFFLINE, &device->flags)) { + /* Already doing normal offline processing */ + dasd_put_device(device); + return -EBUSY; + } else + clear_bit(DASD_FLAG_SAFE_OFFLINE, &device->flags); + + } else + if (test_bit(DASD_FLAG_OFFLINE, &device->flags)) { + /* Already doing offline processing */ + dasd_put_device(device); + return -EBUSY; + } + + /* + * if safe_offline called set safe_offline_running flag and + * clear safe_offline so that a call to normal offline + * can overrun safe_offline processing + */ + if (test_and_clear_bit(DASD_FLAG_SAFE_OFFLINE, &device->flags) && + !test_and_set_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags)) { + /* + * If we want to set the device safe offline all IO operations + * should be finished before continuing the offline process + * so sync bdev first and then wait for our queues to become + * empty + */ + /* sync blockdev and partitions */ + rc = fsync_bdev(device->block->bdev); + if (rc != 0) + goto interrupted; + + /* schedule device tasklet and wait for completion */ + dasd_schedule_device_bh(device); + rc = wait_event_interruptible(shutdown_waitq, + _wait_for_empty_queues(device)); + if (rc != 0) + goto interrupted; + } + + set_bit(DASD_FLAG_OFFLINE, &device->flags); dasd_set_target_state(device, DASD_STATE_NEW); /* dasd_delete_device destroys the device reference. */ block = device->block; @@ -3170,6 +3234,14 @@ int dasd_generic_set_offline(struct ccw_device *cdev) if (block) dasd_free_block(block); return 0; + +interrupted: + /* interrupted by signal */ + clear_bit(DASD_FLAG_SAFE_OFFLINE, &device->flags); + clear_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags); + clear_bit(DASD_FLAG_OFFLINE, &device->flags); + dasd_put_device(device); + return rc; } int dasd_generic_last_path_gone(struct dasd_device *device) @@ -3489,15 +3561,6 @@ char *dasd_get_sense(struct irb *irb) } EXPORT_SYMBOL_GPL(dasd_get_sense); -static inline int _wait_for_empty_queues(struct dasd_device *device) -{ - if (device->block) - return list_empty(&device->ccw_queue) && - list_empty(&device->block->ccw_queue); - else - return list_empty(&device->ccw_queue); -} - void dasd_generic_shutdown(struct ccw_device *cdev) { struct dasd_device *device; diff --git a/drivers/s390/block/dasd_devmap.c b/drivers/s390/block/dasd_devmap.c index 20cfd028edc..c196827c228 100644 --- a/drivers/s390/block/dasd_devmap.c +++ b/drivers/s390/block/dasd_devmap.c @@ -952,6 +952,39 @@ static DEVICE_ATTR(raw_track_access, 0644, dasd_use_raw_show, dasd_use_raw_store); static ssize_t +dasd_safe_offline_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct ccw_device *cdev = to_ccwdev(dev); + struct dasd_device *device; + int rc; + + device = dasd_device_from_cdev(cdev); + if (IS_ERR(device)) { + rc = PTR_ERR(device); + goto out; + } + + if (test_bit(DASD_FLAG_OFFLINE, &device->flags) || + test_bit(DASD_FLAG_SAFE_OFFLINE_RUNNING, &device->flags)) { + /* Already doing offline processing */ + dasd_put_device(device); + rc = -EBUSY; + goto out; + } + + set_bit(DASD_FLAG_SAFE_OFFLINE, &device->flags); + dasd_put_device(device); + + rc = ccw_device_set_offline(cdev); + +out: + return rc ? rc : count; +} + +static DEVICE_ATTR(safe_offline, 0200, NULL, dasd_safe_offline_store); + +static ssize_t dasd_discipline_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1320,6 +1353,7 @@ static struct attribute * dasd_attrs[] = { &dev_attr_expires.attr, &dev_attr_reservation_policy.attr, &dev_attr_last_known_reservation_state.attr, + &dev_attr_safe_offline.attr, NULL, }; diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 108332b44d9..806fe912d6e 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -1026,7 +1026,7 @@ static int dasd_eckd_read_conf(struct dasd_device *device) { void *conf_data; int conf_len, conf_data_saved; - int rc; + int rc, path_err; __u8 lpm, opm; struct dasd_eckd_private *private, path_private; struct dasd_path *path_data; @@ -1037,6 +1037,7 @@ static int dasd_eckd_read_conf(struct dasd_device *device) path_data = &device->path_data; opm = ccw_device_get_path_mask(device->cdev); conf_data_saved = 0; + path_err = 0; /* get configuration data per operational path */ for (lpm = 0x80; lpm; lpm>>= 1) { if (!(lpm & opm)) @@ -1122,7 +1123,8 @@ static int dasd_eckd_read_conf(struct dasd_device *device) "the same device, path %02X leads to " "device %s instead of %s\n", lpm, print_path_uid, print_device_uid); - return -EINVAL; + path_err = -EINVAL; + continue; } path_private.conf_data = NULL; @@ -1142,7 +1144,7 @@ static int dasd_eckd_read_conf(struct dasd_device *device) kfree(conf_data); } - return 0; + return path_err; } static int verify_fcx_max_data(struct dasd_device *device, __u8 lpm) @@ -3847,7 +3849,7 @@ dasd_eckd_dump_ccw_range(struct ccw1 *from, struct ccw1 *to, char *page) len = 0; while (from <= to) { - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " CCW %p: %08X %08X DAT:", from, ((int *) from)[0], ((int *) from)[1]); @@ -3908,23 +3910,23 @@ static void dasd_eckd_dump_sense_ccw(struct dasd_device *device, return; } /* dump the sense data */ - len = sprintf(page, KERN_ERR PRINTK_HEADER + len = sprintf(page, PRINTK_HEADER " I/O status report for device %s:\n", dev_name(&device->cdev->dev)); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " in req: %p CC:%02X FC:%02X AC:%02X SC:%02X DS:%02X " "CS:%02X RC:%d\n", req, scsw_cc(&irb->scsw), scsw_fctl(&irb->scsw), scsw_actl(&irb->scsw), scsw_stctl(&irb->scsw), scsw_dstat(&irb->scsw), scsw_cstat(&irb->scsw), req ? req->intrc : 0); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " device %s: Failing CCW: %p\n", dev_name(&device->cdev->dev), (void *) (addr_t) irb->scsw.cmd.cpa); if (irb->esw.esw0.erw.cons) { for (sl = 0; sl < 4; sl++) { - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " Sense(hex) %2d-%2d:", (8 * sl), ((8 * sl) + 7)); @@ -3937,23 +3939,23 @@ static void dasd_eckd_dump_sense_ccw(struct dasd_device *device, if (irb->ecw[27] & DASD_SENSE_BIT_0) { /* 24 Byte Sense Data */ - sprintf(page + len, KERN_ERR PRINTK_HEADER + sprintf(page + len, PRINTK_HEADER " 24 Byte: %x MSG %x, " "%s MSGb to SYSOP\n", irb->ecw[7] >> 4, irb->ecw[7] & 0x0f, irb->ecw[1] & 0x10 ? "" : "no"); } else { /* 32 Byte Sense Data */ - sprintf(page + len, KERN_ERR PRINTK_HEADER + sprintf(page + len, PRINTK_HEADER " 32 Byte: Format: %x " "Exception class %x\n", irb->ecw[6] & 0x0f, irb->ecw[22] >> 4); } } else { - sprintf(page + len, KERN_ERR PRINTK_HEADER + sprintf(page + len, PRINTK_HEADER " SORRY - NO VALID SENSE AVAILABLE\n"); } - printk("%s", page); + printk(KERN_ERR "%s", page); if (req) { /* req == NULL for unsolicited interrupts */ @@ -3962,10 +3964,10 @@ static void dasd_eckd_dump_sense_ccw(struct dasd_device *device, first = req->cpaddr; for (last = first; last->flags & (CCW_FLAG_CC | CCW_FLAG_DC); last++); to = min(first + 6, last); - len = sprintf(page, KERN_ERR PRINTK_HEADER + len = sprintf(page, PRINTK_HEADER " Related CP in req: %p\n", req); dasd_eckd_dump_ccw_range(first, to, page + len); - printk("%s", page); + printk(KERN_ERR "%s", page); /* print failing CCW area (maximum 4) */ /* scsw->cda is either valid or zero */ @@ -3975,7 +3977,7 @@ static void dasd_eckd_dump_sense_ccw(struct dasd_device *device, irb->scsw.cmd.cpa; /* failing CCW */ if (from < fail - 2) { from = fail - 2; /* there is a gap - print header */ - len += sprintf(page, KERN_ERR PRINTK_HEADER "......\n"); + len += sprintf(page, PRINTK_HEADER "......\n"); } to = min(fail + 1, last); len += dasd_eckd_dump_ccw_range(from, to, page + len); @@ -3984,11 +3986,11 @@ static void dasd_eckd_dump_sense_ccw(struct dasd_device *device, from = max(from, ++to); if (from < last - 1) { from = last - 1; /* there is a gap - print header */ - len += sprintf(page + len, KERN_ERR PRINTK_HEADER "......\n"); + len += sprintf(page + len, PRINTK_HEADER "......\n"); } len += dasd_eckd_dump_ccw_range(from, last, page + len); if (len > 0) - printk("%s", page); + printk(KERN_ERR "%s", page); } free_page((unsigned long) page); } @@ -4012,10 +4014,10 @@ static void dasd_eckd_dump_sense_tcw(struct dasd_device *device, return; } /* dump the sense data */ - len = sprintf(page, KERN_ERR PRINTK_HEADER + len = sprintf(page, PRINTK_HEADER " I/O status report for device %s:\n", dev_name(&device->cdev->dev)); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " in req: %p CC:%02X FC:%02X AC:%02X SC:%02X DS:%02X " "CS:%02X fcxs:%02X schxs:%02X RC:%d\n", req, scsw_cc(&irb->scsw), scsw_fctl(&irb->scsw), @@ -4023,7 +4025,7 @@ static void dasd_eckd_dump_sense_tcw(struct dasd_device *device, scsw_dstat(&irb->scsw), scsw_cstat(&irb->scsw), irb->scsw.tm.fcxs, irb->scsw.tm.schxs, req ? req->intrc : 0); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " device %s: Failing TCW: %p\n", dev_name(&device->cdev->dev), (void *) (addr_t) irb->scsw.tm.tcw); @@ -4035,43 +4037,42 @@ static void dasd_eckd_dump_sense_tcw(struct dasd_device *device, (struct tcw *)(unsigned long)irb->scsw.tm.tcw); if (tsb) { - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " tsb->length %d\n", tsb->length); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " tsb->flags %x\n", tsb->flags); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " tsb->dcw_offset %d\n", tsb->dcw_offset); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " tsb->count %d\n", tsb->count); residual = tsb->count - 28; - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " residual %d\n", residual); switch (tsb->flags & 0x07) { case 1: /* tsa_iostat */ - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " tsb->tsa.iostat.dev_time %d\n", tsb->tsa.iostat.dev_time); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " tsb->tsa.iostat.def_time %d\n", tsb->tsa.iostat.def_time); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " tsb->tsa.iostat.queue_time %d\n", tsb->tsa.iostat.queue_time); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " tsb->tsa.iostat.dev_busy_time %d\n", tsb->tsa.iostat.dev_busy_time); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " tsb->tsa.iostat.dev_act_time %d\n", tsb->tsa.iostat.dev_act_time); sense = tsb->tsa.iostat.sense; break; case 2: /* ts_ddpc */ - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " tsb->tsa.ddpc.rc %d\n", tsb->tsa.ddpc.rc); for (sl = 0; sl < 2; sl++) { - len += sprintf(page + len, - KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " tsb->tsa.ddpc.rcq %2d-%2d: ", (8 * sl), ((8 * sl) + 7)); rcq = tsb->tsa.ddpc.rcq; @@ -4084,15 +4085,14 @@ static void dasd_eckd_dump_sense_tcw(struct dasd_device *device, sense = tsb->tsa.ddpc.sense; break; case 3: /* tsa_intrg */ - len += sprintf(page + len, KERN_ERR PRINTK_HEADER - " tsb->tsa.intrg.: not supportet yet \n"); + len += sprintf(page + len, PRINTK_HEADER + " tsb->tsa.intrg.: not supportet yet\n"); break; } if (sense) { for (sl = 0; sl < 4; sl++) { - len += sprintf(page + len, - KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " Sense(hex) %2d-%2d:", (8 * sl), ((8 * sl) + 7)); for (sct = 0; sct < 8; sct++) { @@ -4104,27 +4104,27 @@ static void dasd_eckd_dump_sense_tcw(struct dasd_device *device, if (sense[27] & DASD_SENSE_BIT_0) { /* 24 Byte Sense Data */ - sprintf(page + len, KERN_ERR PRINTK_HEADER + sprintf(page + len, PRINTK_HEADER " 24 Byte: %x MSG %x, " "%s MSGb to SYSOP\n", sense[7] >> 4, sense[7] & 0x0f, sense[1] & 0x10 ? "" : "no"); } else { /* 32 Byte Sense Data */ - sprintf(page + len, KERN_ERR PRINTK_HEADER + sprintf(page + len, PRINTK_HEADER " 32 Byte: Format: %x " "Exception class %x\n", sense[6] & 0x0f, sense[22] >> 4); } } else { - sprintf(page + len, KERN_ERR PRINTK_HEADER + sprintf(page + len, PRINTK_HEADER " SORRY - NO VALID SENSE AVAILABLE\n"); } } else { - sprintf(page + len, KERN_ERR PRINTK_HEADER + sprintf(page + len, PRINTK_HEADER " SORRY - NO TSB DATA AVAILABLE\n"); } - printk("%s", page); + printk(KERN_ERR "%s", page); free_page((unsigned long) page); } @@ -4161,9 +4161,7 @@ static int dasd_eckd_restore_device(struct dasd_device *device) private = (struct dasd_eckd_private *) device->private; /* Read Configuration Data */ - rc = dasd_eckd_read_conf(device); - if (rc) - goto out_err; + dasd_eckd_read_conf(device); dasd_eckd_get_uid(device, &temp_uid); /* Generate device unique id */ @@ -4183,9 +4181,7 @@ static int dasd_eckd_restore_device(struct dasd_device *device) dasd_eckd_validate_server(device, DASD_CQR_FLAGS_FAILFAST); /* RE-Read Configuration Data */ - rc = dasd_eckd_read_conf(device); - if (rc) - goto out_err; + dasd_eckd_read_conf(device); /* Read Feature Codes */ dasd_eckd_read_features(device); diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index fb7f3bdc660..eb748507c7f 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -479,19 +479,19 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, "No memory to dump sense data"); return; } - len = sprintf(page, KERN_ERR PRINTK_HEADER + len = sprintf(page, PRINTK_HEADER " I/O status report for device %s:\n", dev_name(&device->cdev->dev)); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " in req: %p CS: 0x%02X DS: 0x%02X\n", req, irb->scsw.cmd.cstat, irb->scsw.cmd.dstat); - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " device %s: Failing CCW: %p\n", dev_name(&device->cdev->dev), (void *) (addr_t) irb->scsw.cmd.cpa); if (irb->esw.esw0.erw.cons) { for (sl = 0; sl < 4; sl++) { - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " Sense(hex) %2d-%2d:", (8 * sl), ((8 * sl) + 7)); @@ -502,7 +502,7 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, len += sprintf(page + len, "\n"); } } else { - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " SORRY - NO VALID SENSE AVAILABLE\n"); } printk(KERN_ERR "%s", page); @@ -512,10 +512,9 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, act = req->cpaddr; for (last = act; last->flags & (CCW_FLAG_CC | CCW_FLAG_DC); last++); end = min(act + 8, last); - len = sprintf(page, KERN_ERR PRINTK_HEADER - " Related CP in req: %p\n", req); + len = sprintf(page, PRINTK_HEADER " Related CP in req: %p\n", req); while (act <= end) { - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " CCW %p: %08X %08X DAT:", act, ((int *) act)[0], ((int *) act)[1]); for (count = 0; count < 32 && count < act->count; @@ -533,11 +532,11 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, len = 0; if (act < ((struct ccw1 *)(addr_t) irb->scsw.cmd.cpa) - 2) { act = ((struct ccw1 *)(addr_t) irb->scsw.cmd.cpa) - 2; - len += sprintf(page + len, KERN_ERR PRINTK_HEADER "......\n"); + len += sprintf(page + len, PRINTK_HEADER "......\n"); } end = min((struct ccw1 *)(addr_t) irb->scsw.cmd.cpa + 2, last); while (act <= end) { - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " CCW %p: %08X %08X DAT:", act, ((int *) act)[0], ((int *) act)[1]); for (count = 0; count < 32 && count < act->count; @@ -552,10 +551,10 @@ dasd_fba_dump_sense(struct dasd_device *device, struct dasd_ccw_req * req, /* print last CCWs */ if (act < last - 2) { act = last - 2; - len += sprintf(page + len, KERN_ERR PRINTK_HEADER "......\n"); + len += sprintf(page + len, PRINTK_HEADER "......\n"); } while (act <= last) { - len += sprintf(page + len, KERN_ERR PRINTK_HEADER + len += sprintf(page + len, PRINTK_HEADER " CCW %p: %08X %08X DAT:", act, ((int *) act)[0], ((int *) act)[1]); for (count = 0; count < 32 && count < act->count; diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index 7ff93eea673..899e3f5a56e 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -516,6 +516,8 @@ struct dasd_block { #define DASD_FLAG_IS_RESERVED 7 /* The device is reserved */ #define DASD_FLAG_LOCK_STOLEN 8 /* The device lock was stolen */ #define DASD_FLAG_SUSPENDED 9 /* The device was suspended */ +#define DASD_FLAG_SAFE_OFFLINE 10 /* safe offline processing requested*/ +#define DASD_FLAG_SAFE_OFFLINE_RUNNING 11 /* safe offline running */ void dasd_put_device_wake(struct dasd_device *); diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index 8252f37d04e..03c0e044455 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -19,6 +19,7 @@ #include <linux/slab.h> #include <asm/compat.h> #include <asm/ccwdev.h> +#include <asm/schid.h> #include <asm/cmb.h> #include <asm/uaccess.h> @@ -308,11 +309,12 @@ static int dasd_ioctl_information(struct dasd_block *block, unsigned int cmd, void __user *argp) { struct dasd_information2_t *dasd_info; - unsigned long flags; - int rc; + struct subchannel_id sch_id; + struct ccw_dev_id dev_id; struct dasd_device *base; struct ccw_device *cdev; - struct ccw_dev_id dev_id; + unsigned long flags; + int rc; base = block->base; if (!base->discipline || !base->discipline->fill_info) @@ -330,9 +332,10 @@ static int dasd_ioctl_information(struct dasd_block *block, cdev = base->cdev; ccw_device_get_id(cdev, &dev_id); + ccw_device_get_schid(cdev, &sch_id); dasd_info->devno = dev_id.devno; - dasd_info->schid = _ccw_device_get_subchannel_number(base->cdev); + dasd_info->schid = sch_id.sch_no; dasd_info->cu_type = cdev->id.cu_type; dasd_info->cu_model = cdev->id.cu_model; dasd_info->dev_type = cdev->id.dev_type; diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h index d7e97ae9ef6..25bcd4c0ed8 100644 --- a/drivers/s390/char/sclp.h +++ b/drivers/s390/char/sclp.h @@ -1,5 +1,5 @@ /* - * Copyright IBM Corp. 1999, 2009 + * Copyright IBM Corp. 1999,2012 * * Author(s): Martin Peschke <mpeschke@de.ibm.com> * Martin Schwidefsky <schwidefsky@de.ibm.com> @@ -103,6 +103,7 @@ extern u64 sclp_facilities; #define SCLP_HAS_CHP_RECONFIG (sclp_facilities & 0x2000000000000000ULL) #define SCLP_HAS_CPU_INFO (sclp_facilities & 0x0800000000000000ULL) #define SCLP_HAS_CPU_RECONFIG (sclp_facilities & 0x0400000000000000ULL) +#define SCLP_HAS_PCI_RECONFIG (sclp_facilities & 0x0000000040000000ULL) struct gds_subvector { diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c index 71ea923c322..c44d13f607b 100644 --- a/drivers/s390/char/sclp_cmd.c +++ b/drivers/s390/char/sclp_cmd.c @@ -1,5 +1,5 @@ /* - * Copyright IBM Corp. 2007, 2009 + * Copyright IBM Corp. 2007,2012 * * Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>, * Peter Oberparleiter <peter.oberparleiter@de.ibm.com> @@ -12,6 +12,7 @@ #include <linux/init.h> #include <linux/errno.h> #include <linux/err.h> +#include <linux/export.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/mm.h> @@ -19,10 +20,11 @@ #include <linux/memory.h> #include <linux/module.h> #include <linux/platform_device.h> +#include <asm/ctl_reg.h> #include <asm/chpid.h> -#include <asm/sclp.h> #include <asm/setup.h> -#include <asm/ctl_reg.h> +#include <asm/page.h> +#include <asm/sclp.h> #include "sclp.h" @@ -400,17 +402,15 @@ out: static int sclp_assign_storage(u16 rn) { - unsigned long long start, address; + unsigned long long start; int rc; rc = do_assign_storage(0x000d0001, rn); if (rc) - goto out; - start = address = rn2addr(rn); - for (; address < start + rzm; address += PAGE_SIZE) - page_set_storage_key(address, PAGE_DEFAULT_KEY, 0); -out: - return rc; + return rc; + start = rn2addr(rn); + storage_key_init_range(start, start + rzm); + return 0; } static int sclp_unassign_storage(u16 rn) @@ -702,6 +702,67 @@ __initcall(sclp_detect_standby_memory); #endif /* CONFIG_MEMORY_HOTPLUG */ /* + * PCI I/O adapter configuration related functions. + */ +#define SCLP_CMDW_CONFIGURE_PCI 0x001a0001 +#define SCLP_CMDW_DECONFIGURE_PCI 0x001b0001 + +#define SCLP_RECONFIG_PCI_ATPYE 2 + +struct pci_cfg_sccb { + struct sccb_header header; + u8 atype; /* adapter type */ + u8 reserved1; + u16 reserved2; + u32 aid; /* adapter identifier */ +} __packed; + +static int do_pci_configure(sclp_cmdw_t cmd, u32 fid) +{ + struct pci_cfg_sccb *sccb; + int rc; + + if (!SCLP_HAS_PCI_RECONFIG) + return -EOPNOTSUPP; + + sccb = (struct pci_cfg_sccb *) get_zeroed_page(GFP_KERNEL | GFP_DMA); + if (!sccb) + return -ENOMEM; + + sccb->header.length = PAGE_SIZE; + sccb->atype = SCLP_RECONFIG_PCI_ATPYE; + sccb->aid = fid; + rc = do_sync_request(cmd, sccb); + if (rc) + goto out; + switch (sccb->header.response_code) { + case 0x0020: + case 0x0120: + break; + default: + pr_warn("configure PCI I/O adapter failed: cmd=0x%08x response=0x%04x\n", + cmd, sccb->header.response_code); + rc = -EIO; + break; + } +out: + free_page((unsigned long) sccb); + return rc; +} + +int sclp_pci_configure(u32 fid) +{ + return do_pci_configure(SCLP_CMDW_CONFIGURE_PCI, fid); +} +EXPORT_SYMBOL(sclp_pci_configure); + +int sclp_pci_deconfigure(u32 fid) +{ + return do_pci_configure(SCLP_CMDW_DECONFIGURE_PCI, fid); +} +EXPORT_SYMBOL(sclp_pci_deconfigure); + +/* * Channel path configuration related functions. */ diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c index 731470e6849..84846c2b96d 100644 --- a/drivers/s390/cio/ccwgroup.c +++ b/drivers/s390/cio/ccwgroup.c @@ -65,10 +65,18 @@ static void __ccwgroup_remove_cdev_refs(struct ccwgroup_device *gdev) } } -static int ccwgroup_set_online(struct ccwgroup_device *gdev) +/** + * ccwgroup_set_online() - enable a ccwgroup device + * @gdev: target ccwgroup device + * + * This function attempts to put the ccwgroup device into the online state. + * Returns: + * %0 on success and a negative error value on failure. + */ +int ccwgroup_set_online(struct ccwgroup_device *gdev) { struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver); - int ret = 0; + int ret = -EINVAL; if (atomic_cmpxchg(&gdev->onoff, 0, 1) != 0) return -EAGAIN; @@ -84,11 +92,20 @@ out: atomic_set(&gdev->onoff, 0); return ret; } +EXPORT_SYMBOL(ccwgroup_set_online); -static int ccwgroup_set_offline(struct ccwgroup_device *gdev) +/** + * ccwgroup_set_offline() - disable a ccwgroup device + * @gdev: target ccwgroup device + * + * This function attempts to put the ccwgroup device into the offline state. + * Returns: + * %0 on success and a negative error value on failure. + */ +int ccwgroup_set_offline(struct ccwgroup_device *gdev) { struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver); - int ret = 0; + int ret = -EINVAL; if (atomic_cmpxchg(&gdev->onoff, 0, 1) != 0) return -EAGAIN; @@ -104,6 +121,7 @@ out: atomic_set(&gdev->onoff, 0); return ret; } +EXPORT_SYMBOL(ccwgroup_set_offline); static ssize_t ccwgroup_online_store(struct device *dev, struct device_attribute *attr, diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 4d51a7c4eb8..68e80e2734a 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -1,7 +1,7 @@ /* * S/390 common I/O routines -- channel subsystem call * - * Copyright IBM Corp. 1999, 2010 + * Copyright IBM Corp. 1999,2012 * Author(s): Ingo Adlung (adlung@de.ibm.com) * Cornelia Huck (cornelia.huck@de.ibm.com) * Arnd Bergmann (arndb@de.ibm.com) @@ -14,6 +14,7 @@ #include <linux/slab.h> #include <linux/init.h> #include <linux/device.h> +#include <linux/pci.h> #include <asm/cio.h> #include <asm/chpid.h> @@ -260,26 +261,45 @@ __get_chpid_from_lir(void *data) return (u16) (lir->indesc[0]&0x000000ff); } -struct chsc_sei_area { - struct chsc_header request; +struct chsc_sei_nt0_area { + u8 flags; + u8 vf; /* validity flags */ + u8 rs; /* reporting source */ + u8 cc; /* content code */ + u16 fla; /* full link address */ + u16 rsid; /* reporting source id */ u32 reserved1; u32 reserved2; - u32 reserved3; - struct chsc_header response; - u32 reserved4; - u8 flags; - u8 vf; /* validity flags */ - u8 rs; /* reporting source */ - u8 cc; /* content code */ - u16 fla; /* full link address */ - u16 rsid; /* reporting source id */ - u32 reserved5; - u32 reserved6; - u8 ccdf[4096 - 16 - 24]; /* content-code dependent field */ /* ccdf has to be big enough for a link-incident record */ -} __attribute__ ((packed)); + u8 ccdf[PAGE_SIZE - 24 - 16]; /* content-code dependent field */ +} __packed; + +struct chsc_sei_nt2_area { + u8 flags; /* p and v bit */ + u8 reserved1; + u8 reserved2; + u8 cc; /* content code */ + u32 reserved3[13]; + u8 ccdf[PAGE_SIZE - 24 - 56]; /* content-code dependent field */ +} __packed; + +#define CHSC_SEI_NT0 0ULL +#define CHSC_SEI_NT2 (1ULL << 61) + +struct chsc_sei { + struct chsc_header request; + u32 reserved1; + u64 ntsm; /* notification type mask */ + struct chsc_header response; + u32 reserved2; + union { + struct chsc_sei_nt0_area nt0_area; + struct chsc_sei_nt2_area nt2_area; + u8 nt_area[PAGE_SIZE - 24]; + } u; +} __packed; -static void chsc_process_sei_link_incident(struct chsc_sei_area *sei_area) +static void chsc_process_sei_link_incident(struct chsc_sei_nt0_area *sei_area) { struct chp_id chpid; int id; @@ -298,7 +318,7 @@ static void chsc_process_sei_link_incident(struct chsc_sei_area *sei_area) } } -static void chsc_process_sei_res_acc(struct chsc_sei_area *sei_area) +static void chsc_process_sei_res_acc(struct chsc_sei_nt0_area *sei_area) { struct chp_link link; struct chp_id chpid; @@ -330,7 +350,7 @@ static void chsc_process_sei_res_acc(struct chsc_sei_area *sei_area) s390_process_res_acc(&link); } -static void chsc_process_sei_chp_avail(struct chsc_sei_area *sei_area) +static void chsc_process_sei_chp_avail(struct chsc_sei_nt0_area *sei_area) { struct channel_path *chp; struct chp_id chpid; @@ -366,7 +386,7 @@ struct chp_config_data { u8 pc; }; -static void chsc_process_sei_chp_config(struct chsc_sei_area *sei_area) +static void chsc_process_sei_chp_config(struct chsc_sei_nt0_area *sei_area) { struct chp_config_data *data; struct chp_id chpid; @@ -398,7 +418,7 @@ static void chsc_process_sei_chp_config(struct chsc_sei_area *sei_area) } } -static void chsc_process_sei_scm_change(struct chsc_sei_area *sei_area) +static void chsc_process_sei_scm_change(struct chsc_sei_nt0_area *sei_area) { int ret; @@ -412,13 +432,26 @@ static void chsc_process_sei_scm_change(struct chsc_sei_area *sei_area) " failed (rc=%d).\n", ret); } -static void chsc_process_sei(struct chsc_sei_area *sei_area) +static void chsc_process_sei_nt2(struct chsc_sei_nt2_area *sei_area) { - /* Check if we might have lost some information. */ - if (sei_area->flags & 0x40) { - CIO_CRW_EVENT(2, "chsc: event overflow\n"); - css_schedule_eval_all(); +#ifdef CONFIG_PCI + switch (sei_area->cc) { + case 1: + zpci_event_error(sei_area->ccdf); + break; + case 2: + zpci_event_availability(sei_area->ccdf); + break; + default: + CIO_CRW_EVENT(2, "chsc: unhandled sei content code %d\n", + sei_area->cc); + break; } +#endif +} + +static void chsc_process_sei_nt0(struct chsc_sei_nt0_area *sei_area) +{ /* which kind of information was stored? */ switch (sei_area->cc) { case 1: /* link incident*/ @@ -443,9 +476,51 @@ static void chsc_process_sei(struct chsc_sei_area *sei_area) } } +static int __chsc_process_crw(struct chsc_sei *sei, u64 ntsm) +{ + do { + memset(sei, 0, sizeof(*sei)); + sei->request.length = 0x0010; + sei->request.code = 0x000e; + sei->ntsm = ntsm; + + if (chsc(sei)) + break; + + if (sei->response.code == 0x0001) { + CIO_CRW_EVENT(2, "chsc: sei successful\n"); + + /* Check if we might have lost some information. */ + if (sei->u.nt0_area.flags & 0x40) { + CIO_CRW_EVENT(2, "chsc: event overflow\n"); + css_schedule_eval_all(); + } + + switch (sei->ntsm) { + case CHSC_SEI_NT0: + chsc_process_sei_nt0(&sei->u.nt0_area); + return 1; + case CHSC_SEI_NT2: + chsc_process_sei_nt2(&sei->u.nt2_area); + return 1; + default: + CIO_CRW_EVENT(2, "chsc: unhandled nt (nt=%08Lx)\n", + sei->ntsm); + return 0; + } + } else { + CIO_CRW_EVENT(2, "chsc: sei failed (rc=%04x)\n", + sei->response.code); + break; + } + } while (sei->u.nt0_area.flags & 0x80); + + return 0; +} + static void chsc_process_crw(struct crw *crw0, struct crw *crw1, int overflow) { - struct chsc_sei_area *sei_area; + struct chsc_sei *sei; if (overflow) { css_schedule_eval_all(); @@ -459,25 +534,18 @@ static void chsc_process_crw(struct crw *crw0, struct crw *crw1, int overflow) return; /* Access to sei_page is serialized through machine check handler * thread, so no need for locking. */ - sei_area = sei_page; + sei = sei_page; CIO_TRACE_EVENT(2, "prcss"); - do { - memset(sei_area, 0, sizeof(*sei_area)); - sei_area->request.length = 0x0010; - sei_area->request.code = 0x000e; - if (chsc(sei_area)) - break; - if (sei_area->response.code == 0x0001) { - CIO_CRW_EVENT(4, "chsc: sei successful\n"); - chsc_process_sei(sei_area); - } else { - CIO_CRW_EVENT(2, "chsc: sei failed (rc=%04x)\n", - sei_area->response.code); - break; - } - } while (sei_area->flags & 0x80); + /* + * The ntsm does not allow to select NT0 and NT2 together. We need to + * first check for NT2, than additionally for NT0... + */ +#ifdef CONFIG_PCI + if (!__chsc_process_crw(sei, CHSC_SEI_NT2)) +#endif + __chsc_process_crw(sei, CHSC_SEI_NT0); } void chsc_chp_online(struct chp_id chpid) diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c index fd3143c291c..6995cff4463 100644 --- a/drivers/s390/cio/device.c +++ b/drivers/s390/cio/device.c @@ -2036,16 +2036,6 @@ void ccw_driver_unregister(struct ccw_driver *cdriver) driver_unregister(&cdriver->driver); } -/* Helper func for qdio. */ -struct subchannel_id -ccw_device_get_subchannel_id(struct ccw_device *cdev) -{ - struct subchannel *sch; - - sch = to_subchannel(cdev->dev.parent); - return sch->schid; -} - static void ccw_device_todo(struct work_struct *work) { struct ccw_device_private *priv; @@ -2138,4 +2128,3 @@ EXPORT_SYMBOL(ccw_device_set_offline); EXPORT_SYMBOL(ccw_driver_register); EXPORT_SYMBOL(ccw_driver_unregister); EXPORT_SYMBOL(get_ccwdev_by_busid); -EXPORT_SYMBOL_GPL(ccw_device_get_subchannel_id); diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h index 6bace694239..2e575cff984 100644 --- a/drivers/s390/cio/device.h +++ b/drivers/s390/cio/device.h @@ -142,9 +142,7 @@ int ccw_device_notify(struct ccw_device *, int); void ccw_device_set_disconnected(struct ccw_device *cdev); void ccw_device_set_notoper(struct ccw_device *cdev); -/* qdio needs this. */ void ccw_device_set_timeout(struct ccw_device *, int); -extern struct subchannel_id ccw_device_get_subchannel_id(struct ccw_device *); /* Channel measurement facility related */ void retry_set_schib(struct ccw_device *cdev); diff --git a/drivers/s390/cio/device_ops.c b/drivers/s390/cio/device_ops.c index ec7fb6d3b47..c77b6e06bf6 100644 --- a/drivers/s390/cio/device_ops.c +++ b/drivers/s390/cio/device_ops.c @@ -755,14 +755,18 @@ int ccw_device_tm_intrg(struct ccw_device *cdev) } EXPORT_SYMBOL(ccw_device_tm_intrg); -// FIXME: these have to go: - -int -_ccw_device_get_subchannel_number(struct ccw_device *cdev) +/** + * ccw_device_get_schid - obtain a subchannel id + * @cdev: device to obtain the id for + * @schid: where to fill in the values + */ +void ccw_device_get_schid(struct ccw_device *cdev, struct subchannel_id *schid) { - return cdev->private->schid.sch_no; -} + struct subchannel *sch = to_subchannel(cdev->dev.parent); + *schid = sch->schid; +} +EXPORT_SYMBOL_GPL(ccw_device_get_schid); MODULE_LICENSE("GPL"); EXPORT_SYMBOL(ccw_device_set_options_mask); @@ -777,5 +781,4 @@ EXPORT_SYMBOL(ccw_device_start_timeout_key); EXPORT_SYMBOL(ccw_device_start_key); EXPORT_SYMBOL(ccw_device_get_ciw); EXPORT_SYMBOL(ccw_device_get_path_mask); -EXPORT_SYMBOL(_ccw_device_get_subchannel_number); EXPORT_SYMBOL_GPL(ccw_device_get_chp_desc); diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c index 368368fe04b..908d287f66c 100644 --- a/drivers/s390/cio/device_pgid.c +++ b/drivers/s390/cio/device_pgid.c @@ -234,7 +234,7 @@ static int pgid_cmp(struct pgid *p1, struct pgid *p2) * Determine pathgroup state from PGID data. */ static void pgid_analyze(struct ccw_device *cdev, struct pgid **p, - int *mismatch, int *reserved, u8 *reset) + int *mismatch, u8 *reserved, u8 *reset) { struct pgid *pgid = &cdev->private->pgid[0]; struct pgid *first = NULL; @@ -248,7 +248,7 @@ static void pgid_analyze(struct ccw_device *cdev, struct pgid **p, if ((cdev->private->pgid_valid_mask & lpm) == 0) continue; if (pgid->inf.ps.state2 == SNID_STATE2_RESVD_ELSE) - *reserved = 1; + *reserved |= lpm; if (pgid_is_reset(pgid)) { *reset |= lpm; continue; @@ -316,14 +316,14 @@ static void snid_done(struct ccw_device *cdev, int rc) struct subchannel *sch = to_subchannel(cdev->dev.parent); struct pgid *pgid; int mismatch = 0; - int reserved = 0; + u8 reserved = 0; u8 reset = 0; u8 donepm; if (rc) goto out; pgid_analyze(cdev, &pgid, &mismatch, &reserved, &reset); - if (reserved) + if (reserved == cdev->private->pgid_valid_mask) rc = -EUSERS; else if (mismatch) rc = -EOPNOTSUPP; @@ -336,7 +336,7 @@ static void snid_done(struct ccw_device *cdev, int rc) } out: CIO_MSG_EVENT(2, "snid: device 0.%x.%04x: rc=%d pvm=%02x vpm=%02x " - "todo=%02x mism=%d rsvd=%d reset=%02x\n", id->ssid, + "todo=%02x mism=%d rsvd=%02x reset=%02x\n", id->ssid, id->devno, rc, cdev->private->pgid_valid_mask, sch->vpm, cdev->private->pgid_todo_mask, mismatch, reserved, reset); switch (rc) { diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c index e06fa03ea1e..1671d3461f2 100644 --- a/drivers/s390/cio/qdio_main.c +++ b/drivers/s390/cio/qdio_main.c @@ -129,7 +129,6 @@ static int qdio_do_eqbs(struct qdio_q *q, unsigned char *state, int rc, tmp_count = count, tmp_start = start, nr = q->nr, retried = 0; unsigned int ccq = 0; - BUG_ON(!q->irq_ptr->sch_token); qperf_inc(q, eqbs); if (!q->is_input_q) @@ -147,7 +146,6 @@ again: } if (rc == 2) { - BUG_ON(tmp_count == count); qperf_inc(q, eqbs_partial); DBF_DEV_EVENT(DBF_WARN, q->irq_ptr, "EQBS part:%02x", tmp_count); @@ -189,8 +187,6 @@ static int qdio_do_sqbs(struct qdio_q *q, unsigned char state, int start, if (!count) return 0; - - BUG_ON(!q->irq_ptr->sch_token); qperf_inc(q, sqbs); if (!q->is_input_q) @@ -199,7 +195,7 @@ again: ccq = do_sqbs(q->irq_ptr->sch_token, state, nr, &tmp_start, &tmp_count); rc = qdio_check_ccq(q, ccq); if (!rc) { - WARN_ON(tmp_count); + WARN_ON_ONCE(tmp_count); return count - tmp_count; } @@ -224,9 +220,6 @@ static inline int get_buf_states(struct qdio_q *q, unsigned int bufnr, unsigned char __state = 0; int i; - BUG_ON(bufnr > QDIO_MAX_BUFFERS_MASK); - BUG_ON(count > QDIO_MAX_BUFFERS_PER_Q); - if (is_qebsm(q)) return qdio_do_eqbs(q, state, bufnr, count, auto_ack); @@ -258,9 +251,6 @@ static inline int set_buf_states(struct qdio_q *q, int bufnr, { int i; - BUG_ON(bufnr > QDIO_MAX_BUFFERS_MASK); - BUG_ON(count > QDIO_MAX_BUFFERS_PER_Q); - if (is_qebsm(q)) return qdio_do_sqbs(q, state, bufnr, count); @@ -345,7 +335,6 @@ again: /* hipersocket busy condition */ if (unlikely(*busy_bit)) { - WARN_ON(queue_type(q) != QDIO_IQDIO_QFMT || cc != 2); retries++; if (!start_time) { @@ -559,7 +548,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q) DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, "in nop"); break; default: - BUG(); + WARN_ON_ONCE(1); } out: return q->first_to_check; @@ -678,12 +667,10 @@ static inline void qdio_handle_aobs(struct qdio_q *q, int start, int count) if (aob == NULL) continue; - BUG_ON(q->u.out.sbal_state == NULL); q->u.out.sbal_state[b].flags |= QDIO_OUTBUF_STATE_FLAG_PENDING; q->u.out.aobs[b] = NULL; } else if (state == SLSB_P_OUTPUT_EMPTY) { - BUG_ON(q->u.out.sbal_state == NULL); q->u.out.sbal_state[b].aob = NULL; } b = next_buf(b); @@ -703,12 +690,11 @@ static inline unsigned long qdio_aob_for_buffer(struct qdio_output_q *q, q->aobs[bufnr] = aob; } if (q->aobs[bufnr]) { - BUG_ON(q->sbal_state == NULL); q->sbal_state[bufnr].flags = QDIO_OUTBUF_STATE_FLAG_NONE; q->sbal_state[bufnr].aob = q->aobs[bufnr]; q->aobs[bufnr]->user1 = (u64) q->sbal_state[bufnr].user; phys_aob = virt_to_phys(q->aobs[bufnr]); - BUG_ON(phys_aob & 0xFF); + WARN_ON_ONCE(phys_aob & 0xFF); } out: @@ -809,8 +795,6 @@ static int get_outbound_buffer_frontier(struct qdio_q *q) goto out; switch (state) { - case SLSB_P_OUTPUT_PENDING: - BUG(); case SLSB_P_OUTPUT_EMPTY: /* the adapter got it */ DBF_DEV_EVENT(DBF_INFO, q->irq_ptr, @@ -840,7 +824,7 @@ static int get_outbound_buffer_frontier(struct qdio_q *q) case SLSB_P_OUTPUT_HALTED: break; default: - BUG(); + WARN_ON_ONCE(1); } out: @@ -912,7 +896,7 @@ retry: static void __qdio_outbound_processing(struct qdio_q *q) { qperf_inc(q, tasklet_outbound); - BUG_ON(atomic_read(&q->nr_buf_used) < 0); + WARN_ON_ONCE(atomic_read(&q->nr_buf_used) < 0); if (qdio_outbound_q_moved(q)) qdio_kick_handler(q); @@ -1138,16 +1122,10 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm, irq_ptr->perf_stat.qdio_int++; if (IS_ERR(irb)) { - switch (PTR_ERR(irb)) { - case -EIO: - DBF_ERROR("%4x IO error", irq_ptr->schid.sch_no); - qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR); - wake_up(&cdev->private->wait_q); - return; - default: - WARN_ON(1); - return; - } + DBF_ERROR("%4x IO error", irq_ptr->schid.sch_no); + qdio_set_state(irq_ptr, QDIO_IRQ_STATE_ERR); + wake_up(&cdev->private->wait_q); + return; } qdio_irq_check_sense(irq_ptr, irb); cstat = irb->scsw.cmd.cstat; @@ -1173,7 +1151,7 @@ void qdio_int_handler(struct ccw_device *cdev, unsigned long intparm, case QDIO_IRQ_STATE_STOPPED: break; default: - WARN_ON(1); + WARN_ON_ONCE(1); } wake_up(&cdev->private->wait_q); } @@ -1227,7 +1205,7 @@ int qdio_shutdown(struct ccw_device *cdev, int how) if (!irq_ptr) return -ENODEV; - BUG_ON(irqs_disabled()); + WARN_ON_ONCE(irqs_disabled()); DBF_EVENT("qshutdown:%4x", cdev->private->schid.sch_no); mutex_lock(&irq_ptr->setup_mutex); @@ -1358,7 +1336,6 @@ int qdio_allocate(struct qdio_initialize *init_data) irq_ptr->qdr = (struct qdr *) get_zeroed_page(GFP_KERNEL | GFP_DMA); if (!irq_ptr->qdr) goto out_rel; - WARN_ON((unsigned long)irq_ptr->qdr & 0xfff); if (qdio_allocate_qs(irq_ptr, init_data->no_input_qs, init_data->no_output_qs)) @@ -1597,9 +1574,7 @@ static int handle_inbound(struct qdio_q *q, unsigned int callflags, set: count = set_buf_states(q, bufnr, SLSB_CU_INPUT_EMPTY, count); - used = atomic_add_return(count, &q->nr_buf_used) - count; - BUG_ON(used + count > QDIO_MAX_BUFFERS_PER_Q); if (need_siga_in(q)) return qdio_siga_input(q); @@ -1624,7 +1599,6 @@ static int handle_outbound(struct qdio_q *q, unsigned int callflags, count = set_buf_states(q, bufnr, SLSB_CU_OUTPUT_PRIMED, count); used = atomic_add_return(count, &q->nr_buf_used); - BUG_ON(used > QDIO_MAX_BUFFERS_PER_Q); if (used == QDIO_MAX_BUFFERS_PER_Q) qperf_inc(q, outbound_queue_full); @@ -1678,7 +1652,6 @@ int do_QDIO(struct ccw_device *cdev, unsigned int callflags, { struct qdio_irq *irq_ptr; - if (bufnr >= QDIO_MAX_BUFFERS_PER_Q || count > QDIO_MAX_BUFFERS_PER_Q) return -EINVAL; @@ -1721,8 +1694,6 @@ int qdio_start_irq(struct ccw_device *cdev, int nr) return -ENODEV; q = irq_ptr->input_qs[nr]; - WARN_ON(queue_irqs_enabled(q)); - clear_nonshared_ind(irq_ptr); qdio_stop_polling(q); clear_bit(QDIO_QUEUE_IRQS_DISABLED, &q->u.in.queue_irq_state); @@ -1769,7 +1740,6 @@ int qdio_get_next_buffers(struct ccw_device *cdev, int nr, int *bufnr, if (!irq_ptr) return -ENODEV; q = irq_ptr->input_qs[nr]; - WARN_ON(queue_irqs_enabled(q)); /* * Cannot rely on automatic sync after interrupt since queues may diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c index 6c973db1498..16ecd35b8e5 100644 --- a/drivers/s390/cio/qdio_setup.c +++ b/drivers/s390/cio/qdio_setup.c @@ -140,10 +140,8 @@ static void setup_storage_lists(struct qdio_q *q, struct qdio_irq *irq_ptr, q->sl = (struct sl *)((char *)q->slib + PAGE_SIZE / 2); /* fill in sbal */ - for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) { + for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; j++) q->sbal[j] = *sbals_array++; - BUG_ON((unsigned long)q->sbal[j] & 0xff); - } /* fill in slib */ if (i > 0) { @@ -434,9 +432,8 @@ int qdio_setup_irq(struct qdio_initialize *init_data) irq_ptr->int_parm = init_data->int_parm; irq_ptr->nr_input_qs = init_data->no_input_qs; irq_ptr->nr_output_qs = init_data->no_output_qs; - - irq_ptr->schid = ccw_device_get_subchannel_id(init_data->cdev); irq_ptr->cdev = init_data->cdev; + ccw_device_get_schid(irq_ptr->cdev, &irq_ptr->schid); setup_queues(irq_ptr, init_data); setup_qib(irq_ptr, init_data); @@ -483,7 +480,7 @@ void qdio_print_subchannel_info(struct qdio_irq *irq_ptr, char s[80]; snprintf(s, 80, "qdio: %s %s on SC %x using " - "AI:%d QEBSM:%d PCI:%d TDD:%d SIGA:%s%s%s%s%s\n", + "AI:%d QEBSM:%d PRI:%d TDD:%d SIGA:%s%s%s%s%s\n", dev_name(&cdev->dev), (irq_ptr->qib.qfmt == QDIO_QETH_QFMT) ? "OSA" : ((irq_ptr->qib.qfmt == QDIO_ZFCP_QFMT) ? "ZFCP" : "HS"), diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c index 2e060088fa8..bdb394b066f 100644 --- a/drivers/s390/cio/qdio_thinint.c +++ b/drivers/s390/cio/qdio_thinint.c @@ -73,7 +73,6 @@ static void put_indicator(u32 *addr) void tiqdio_add_input_queues(struct qdio_irq *irq_ptr) { mutex_lock(&tiq_list_lock); - BUG_ON(irq_ptr->nr_input_qs < 1); list_add_rcu(&irq_ptr->input_qs[0]->entry, &tiq_list); mutex_unlock(&tiq_list_lock); xchg(irq_ptr->dsci, 1 << 7); @@ -83,7 +82,6 @@ void tiqdio_remove_input_queues(struct qdio_irq *irq_ptr) { struct qdio_q *q; - BUG_ON(irq_ptr->nr_input_qs < 1); q = irq_ptr->input_qs[0]; /* if establish triggered an error */ if (!q || !q->entry.prev || !q->entry.next) diff --git a/drivers/s390/crypto/zcrypt_msgtype50.c b/drivers/s390/crypto/zcrypt_msgtype50.c index 035b6dc31b7..7c522f338bd 100644 --- a/drivers/s390/crypto/zcrypt_msgtype50.c +++ b/drivers/s390/crypto/zcrypt_msgtype50.c @@ -241,84 +241,70 @@ static int ICACRT_msg_to_type50CRT_msg(struct zcrypt_device *zdev, struct ap_message *ap_msg, struct ica_rsa_modexpo_crt *crt) { - int mod_len, short_len, long_len, long_offset, limit; + int mod_len, short_len; unsigned char *p, *q, *dp, *dq, *u, *inp; mod_len = crt->inputdatalength; short_len = mod_len / 2; - long_len = mod_len / 2 + 8; /* - * CEX2A cannot handle p, dp, or U > 128 bytes. - * If we have one of these, we need to do extra checking. - * For CEX3A the limit is 256 bytes. + * CEX2A and CEX3A w/o FW update can handle requests up to + * 256 byte modulus (2k keys). + * CEX3A with FW update and CEX4A cards are able to handle + * 512 byte modulus (4k keys). */ - if (zdev->max_mod_size == CEX3A_MAX_MOD_SIZE) - limit = 256; - else - limit = 128; - - if (long_len > limit) { - /* - * zcrypt_rsa_crt already checked for the leading - * zeroes of np_prime, bp_key and u_mult_inc. - */ - long_offset = long_len - limit; - long_len = limit; - } else - long_offset = 0; - - /* - * Instead of doing extra work for p, dp, U > 64 bytes, we'll just use - * the larger message structure. - */ - if (long_len <= 64) { + if (mod_len <= 128) { /* up to 1024 bit key size */ struct type50_crb1_msg *crb1 = ap_msg->message; memset(crb1, 0, sizeof(*crb1)); ap_msg->length = sizeof(*crb1); crb1->header.msg_type_code = TYPE50_TYPE_CODE; crb1->header.msg_len = sizeof(*crb1); crb1->keyblock_type = TYPE50_CRB1_FMT; - p = crb1->p + sizeof(crb1->p) - long_len; + p = crb1->p + sizeof(crb1->p) - short_len; q = crb1->q + sizeof(crb1->q) - short_len; - dp = crb1->dp + sizeof(crb1->dp) - long_len; + dp = crb1->dp + sizeof(crb1->dp) - short_len; dq = crb1->dq + sizeof(crb1->dq) - short_len; - u = crb1->u + sizeof(crb1->u) - long_len; + u = crb1->u + sizeof(crb1->u) - short_len; inp = crb1->message + sizeof(crb1->message) - mod_len; - } else if (long_len <= 128) { + } else if (mod_len <= 256) { /* up to 2048 bit key size */ struct type50_crb2_msg *crb2 = ap_msg->message; memset(crb2, 0, sizeof(*crb2)); ap_msg->length = sizeof(*crb2); crb2->header.msg_type_code = TYPE50_TYPE_CODE; crb2->header.msg_len = sizeof(*crb2); crb2->keyblock_type = TYPE50_CRB2_FMT; - p = crb2->p + sizeof(crb2->p) - long_len; + p = crb2->p + sizeof(crb2->p) - short_len; q = crb2->q + sizeof(crb2->q) - short_len; - dp = crb2->dp + sizeof(crb2->dp) - long_len; + dp = crb2->dp + sizeof(crb2->dp) - short_len; dq = crb2->dq + sizeof(crb2->dq) - short_len; - u = crb2->u + sizeof(crb2->u) - long_len; + u = crb2->u + sizeof(crb2->u) - short_len; inp = crb2->message + sizeof(crb2->message) - mod_len; - } else { - /* long_len >= 256 */ + } else if ((mod_len <= 512) && /* up to 4096 bit key size */ + (zdev->max_mod_size == CEX3A_MAX_MOD_SIZE)) { /* >= CEX3A */ struct type50_crb3_msg *crb3 = ap_msg->message; memset(crb3, 0, sizeof(*crb3)); ap_msg->length = sizeof(*crb3); crb3->header.msg_type_code = TYPE50_TYPE_CODE; crb3->header.msg_len = sizeof(*crb3); crb3->keyblock_type = TYPE50_CRB3_FMT; - p = crb3->p + sizeof(crb3->p) - long_len; + p = crb3->p + sizeof(crb3->p) - short_len; q = crb3->q + sizeof(crb3->q) - short_len; - dp = crb3->dp + sizeof(crb3->dp) - long_len; + dp = crb3->dp + sizeof(crb3->dp) - short_len; dq = crb3->dq + sizeof(crb3->dq) - short_len; - u = crb3->u + sizeof(crb3->u) - long_len; + u = crb3->u + sizeof(crb3->u) - short_len; inp = crb3->message + sizeof(crb3->message) - mod_len; - } + } else + return -EINVAL; - if (copy_from_user(p, crt->np_prime + long_offset, long_len) || + /* + * correct the offset of p, bp and mult_inv according zcrypt.h + * block size right aligned (skip the first byte) + */ + if (copy_from_user(p, crt->np_prime + MSGTYPE_ADJUSTMENT, short_len) || copy_from_user(q, crt->nq_prime, short_len) || - copy_from_user(dp, crt->bp_key + long_offset, long_len) || + copy_from_user(dp, crt->bp_key + MSGTYPE_ADJUSTMENT, short_len) || copy_from_user(dq, crt->bq_key, short_len) || - copy_from_user(u, crt->u_mult_inv + long_offset, long_len) || + copy_from_user(u, crt->u_mult_inv + MSGTYPE_ADJUSTMENT, short_len) || copy_from_user(inp, crt->inputdata, mod_len)) return -EFAULT; diff --git a/drivers/s390/crypto/zcrypt_msgtype50.h b/drivers/s390/crypto/zcrypt_msgtype50.h index e56dc72c773..0a66e4aeeb5 100644 --- a/drivers/s390/crypto/zcrypt_msgtype50.h +++ b/drivers/s390/crypto/zcrypt_msgtype50.h @@ -33,6 +33,8 @@ #define MSGTYPE50_CRB2_MAX_MSG_SIZE 0x390 /*sizeof(struct type50_crb2_msg)*/ #define MSGTYPE50_CRB3_MAX_MSG_SIZE 0x710 /*sizeof(struct type50_crb3_msg)*/ +#define MSGTYPE_ADJUSTMENT 0x08 /*type04 extension (not needed in type50)*/ + int zcrypt_msgtype50_init(void); void zcrypt_msgtype50_exit(void); diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 448303bdb85..9e0ebe05124 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -83,19 +83,25 @@ static inline void __raw_writel(u32 b, volatile void __iomem *addr) #define writel(b,addr) __raw_writel(__cpu_to_le32(b),addr) #ifdef CONFIG_64BIT +#ifndef __raw_readq static inline u64 __raw_readq(const volatile void __iomem *addr) { return *(const volatile u64 __force *) addr; } +#endif + #define readq(addr) __le64_to_cpu(__raw_readq(addr)) +#ifndef __raw_writeq static inline void __raw_writeq(u64 b, volatile void __iomem *addr) { *(volatile u64 __force *) addr = b; } -#define writeq(b,addr) __raw_writeq(__cpu_to_le64(b),addr) #endif +#define writeq(b, addr) __raw_writeq(__cpu_to_le64(b), addr) +#endif /* CONFIG_64BIT */ + #ifndef PCI_IOBASE #define PCI_IOBASE ((void __iomem *) 0) #endif @@ -286,15 +292,20 @@ static inline void writesb(const void __iomem *addr, const void *buf, int len) #ifndef CONFIG_GENERIC_IOMAP struct pci_dev; +extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max); + +#ifndef pci_iounmap static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p) { } +#endif #endif /* CONFIG_GENERIC_IOMAP */ /* * Change virtual addresses to physical addresses and vv. * These are pretty trivial */ +#ifndef virt_to_phys static inline unsigned long virt_to_phys(volatile void *address) { return __pa((unsigned long)address); @@ -304,6 +315,7 @@ static inline void *phys_to_virt(unsigned long address) { return __va(address); } +#endif /* * Change "struct page" to physical address. @@ -363,9 +375,16 @@ static inline void *bus_to_virt(unsigned long address) } #endif +#ifndef memset_io #define memset_io(a, b, c) memset(__io_virt(a), (b), (c)) +#endif + +#ifndef memcpy_fromio #define memcpy_fromio(a, b, c) memcpy((a), __io_virt(b), (c)) +#endif +#ifndef memcpy_toio #define memcpy_toio(a, b, c) memcpy(__io_virt(a), (b), (c)) +#endif #endif /* __KERNEL__ */ diff --git a/include/linux/irq.h b/include/linux/irq.h index 526f10a637c..fdf2c4a238c 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -10,9 +10,6 @@ */ #include <linux/smp.h> - -#ifndef CONFIG_S390 - #include <linux/linkage.h> #include <linux/cache.h> #include <linux/spinlock.h> @@ -746,8 +743,11 @@ static inline void irq_gc_lock(struct irq_chip_generic *gc) { } static inline void irq_gc_unlock(struct irq_chip_generic *gc) { } #endif -#endif /* CONFIG_GENERIC_HARDIRQS */ +#else /* !CONFIG_GENERIC_HARDIRQS */ -#endif /* !CONFIG_S390 */ +extern struct msi_desc *irq_get_msi_desc(unsigned int irq); +extern int irq_set_msi_desc(unsigned int irq, struct msi_desc *entry); + +#endif /* CONFIG_GENERIC_HARDIRQS */ #endif /* _LINUX_IRQ_H */ |