From: Michal Simek Date: Fri, 28 May 2010 12:45:38 +0000 (+0200) Subject: microblaze: Fix GDB issue caused by cache issue X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=a706729c3df22d5cf4a50a02c25f5ebfcb370c82;p=mv-sheeva.git 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 --- 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) \