diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm/mm/copypage-v4mc.c | 6 | ||||
-rw-r--r-- | arch/arm/mm/copypage-v6.c | 4 | ||||
-rw-r--r-- | arch/arm/mm/copypage-xscale.c | 6 |
3 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/mm/copypage-v4mc.c b/arch/arm/mm/copypage-v4mc.c index 408b05a..ded0e96 100644 --- a/arch/arm/mm/copypage-v4mc.c +++ b/arch/arm/mm/copypage-v4mc.c @@ -19,6 +19,7 @@ #include <asm/page.h> #include <asm/pgtable.h> #include <asm/tlbflush.h> +#include <asm/cacheflush.h> #include "mm.h" @@ -69,6 +70,11 @@ mc_copy_user_page(void *from, void *to) void v4_mc_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr) { + struct page *page = virt_to_page(kfrom); + + if (test_and_clear_bit(PG_dcache_dirty, &page->flags)) + __flush_dcache_page(page_mapping(page), page); + spin_lock(&minicache_lock); set_pte_ext(TOP_PTE(0xffff8000), pfn_pte(__pa(kfrom) >> PAGE_SHIFT, minicache_pgprot), 0); diff --git a/arch/arm/mm/copypage-v6.c b/arch/arm/mm/copypage-v6.c index 865777d..3adb792 100644 --- a/arch/arm/mm/copypage-v6.c +++ b/arch/arm/mm/copypage-v6.c @@ -53,6 +53,10 @@ static void v6_copy_user_page_aliasing(void *kto, const void *kfrom, unsigned lo { unsigned int offset = CACHE_COLOUR(vaddr); unsigned long from, to; + struct page *page = virt_to_page(kfrom); + + if (test_and_clear_bit(PG_dcache_dirty, &page->flags)) + __flush_dcache_page(page_mapping(page), page); /* * Discard data in the kernel mapping for the new page. diff --git a/arch/arm/mm/copypage-xscale.c b/arch/arm/mm/copypage-xscale.c index aea5da7..2e455f8 100644 --- a/arch/arm/mm/copypage-xscale.c +++ b/arch/arm/mm/copypage-xscale.c @@ -19,6 +19,7 @@ #include <asm/page.h> #include <asm/pgtable.h> #include <asm/tlbflush.h> +#include <asm/cacheflush.h> #include "mm.h" @@ -91,6 +92,11 @@ mc_copy_user_page(void *from, void *to) void xscale_mc_copy_user_page(void *kto, const void *kfrom, unsigned long vaddr) { + struct page *page = virt_to_page(kfrom); + + if (test_and_clear_bit(PG_dcache_dirty, &page->flags)) + __flush_dcache_page(page_mapping(page), page); + spin_lock(&minicache_lock); set_pte_ext(TOP_PTE(COPYPAGE_MINICACHE), pfn_pte(__pa(kfrom) >> PAGE_SHIFT, minicache_pgprot), 0); |