1 files changed, 17 insertions, 27 deletions

diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index 79dea9740a3..b3cbc670383 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -43,6 +43,7 @@
 #include <asm/kmap_types.h>
 #include <asm/fixmap.h>
 #include <asm/tlbflush.h>
+#include <asm/sections.h>
 
 int mem_init_done;
 
@@ -167,15 +168,26 @@ void __init paging_init(void)
 		unsigned long *dtlb_vector = __va(0x900);
 		unsigned long *itlb_vector = __va(0xa00);
 
+		printk(KERN_INFO "itlb_miss_handler %p\n", &itlb_miss_handler);
+		*itlb_vector = ((unsigned long)&itlb_miss_handler -
+				(unsigned long)itlb_vector) >> 2;
+
+		/* Soft ordering constraint to ensure that dtlb_vector is
+		 * the last thing updated
+		 */
+		barrier();
+
 		printk(KERN_INFO "dtlb_miss_handler %p\n", &dtlb_miss_handler);
 		*dtlb_vector = ((unsigned long)&dtlb_miss_handler -
 				(unsigned long)dtlb_vector) >> 2;
 
-		printk(KERN_INFO "itlb_miss_handler %p\n", &itlb_miss_handler);
-		*itlb_vector = ((unsigned long)&itlb_miss_handler -
-				(unsigned long)itlb_vector) >> 2;
 	}
 
+	/* Soft ordering constraint to ensure that cache invalidation and
+	 * TLB flush really happen _after_ code has been modified.
+	 */
+	barrier();
+
 	/* Invalidate instruction caches after code modification */
 	mtspr(SPR_ICBIR, 0x900);
 	mtspr(SPR_ICBIR, 0xa00);
@@ -190,9 +202,6 @@ void __init paging_init(void)
 
 /* References to section boundaries */
 
-extern char _stext, _etext, _edata, __bss_start, _end;
-extern char __init_begin, __init_end;
-
 static int __init free_pages_init(void)
 {
 	int reservedpages, pfn;
@@ -252,30 +261,11 @@ void __init mem_init(void)
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-	printk(KERN_INFO "Freeing initrd memory: %ldk freed\n",
-	       (end - start) >> 10);
-
-	for (; start < end; start += PAGE_SIZE) {
-		ClearPageReserved(virt_to_page(start));
-		init_page_count(virt_to_page(start));
-		free_page(start);
-		totalram_pages++;
-	}
+	free_reserved_area(start, end, 0, "initrd");
 }
 #endif
 
 void free_initmem(void)
 {
-	unsigned long addr;
-
-	addr = (unsigned long)(&__init_begin);
-	for (; addr < (unsigned long)(&__init_end); addr += PAGE_SIZE) {
-		ClearPageReserved(virt_to_page(addr));
-		init_page_count(virt_to_page(addr));
-		free_page(addr);
-		totalram_pages++;
-	}
-	printk(KERN_INFO "Freeing unused kernel memory: %luk freed\n",
-	       ((unsigned long)&__init_end -
-		(unsigned long)&__init_begin) >> 10);
+	free_initmem_default(0);
 }