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authorMichal Simek <monstr@monstr.eu>2010-05-28 14:45:38 +0200
committerMichal Simek <monstr@monstr.eu>2011-03-09 08:09:55 +0100
commita706729c3df22d5cf4a50a02c25f5ebfcb370c82 (patch)
tree0ddc0f876ec8e17720eb2eab40c13d4e7a510af3 /arch/microblaze
parentcd3415779bdb13e3daaf13965c89d286a0cf0480 (diff)
microblaze: Fix GDB issue caused by cache issue
Used the same solution as SH. Changed len to PAGE_SIZE in copy_to_user_page macro. Implement flush_cache_page macro. Signed-off-by: Michal Simek <monstr@monstr.eu>
Diffstat (limited to 'arch/microblaze')
-rw-r--r--arch/microblaze/include/asm/cacheflush.h12
1 files changed, 9 insertions, 3 deletions
diff --git a/arch/microblaze/include/asm/cacheflush.h b/arch/microblaze/include/asm/cacheflush.h
index 7ebd955460d..5a5d835ae16 100644
--- a/arch/microblaze/include/asm/cacheflush.h
+++ b/arch/microblaze/include/asm/cacheflush.h
@@ -89,7 +89,9 @@ do { \
#define flush_cache_vmap(start, end) do { } while (0)
#define flush_cache_vunmap(start, end) do { } while (0)
#define flush_cache_mm(mm) do { } while (0)
-#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
+
+#define flush_cache_page(vma, vmaddr, pfn) \
+ flush_dcache_range(pfn << PAGE_SHIFT, (pfn << PAGE_SHIFT) + PAGE_SIZE);
/* MS: kgdb code use this macro, wrong len with FLASH */
#if 0
@@ -104,9 +106,13 @@ do { \
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
do { \
u32 addr = virt_to_phys(dst); \
- invalidate_icache_range((unsigned) (addr), (unsigned) (addr) + (len));\
memcpy((dst), (src), (len)); \
- flush_dcache_range((unsigned) (addr), (unsigned) (addr) + (len));\
+ if (vma->vm_flags & VM_EXEC) { \
+ invalidate_icache_range((unsigned) (addr), \
+ (unsigned) (addr) + PAGE_SIZE); \
+ flush_dcache_range((unsigned) (addr), \
+ (unsigned) (addr) + PAGE_SIZE); \
+ } \
} while (0)
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \