diff options
Diffstat (limited to 'arch/powerpc/mm/mem.c')
| -rw-r--r-- | arch/powerpc/mm/mem.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 59736317bf0..311224cdb7a 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -32,6 +32,7 @@ #include <linux/pagemap.h> #include <linux/suspend.h> #include <linux/lmb.h> +#include <linux/hugetlb.h> #include <asm/pgalloc.h> #include <asm/prom.h> @@ -417,18 +418,26 @@ EXPORT_SYMBOL(flush_dcache_page); void flush_dcache_icache_page(struct page *page) { +#ifdef CONFIG_HUGETLB_PAGE + if (PageCompound(page)) { + flush_dcache_icache_hugepage(page); + return; + } +#endif #ifdef CONFIG_BOOKE - void *start = kmap_atomic(page, KM_PPC_SYNC_ICACHE); - __flush_dcache_icache(start); - kunmap_atomic(start, KM_PPC_SYNC_ICACHE); + { + void *start = kmap_atomic(page, KM_PPC_SYNC_ICACHE); + __flush_dcache_icache(start); + kunmap_atomic(start, KM_PPC_SYNC_ICACHE); + } #elif defined(CONFIG_8xx) || defined(CONFIG_PPC64) /* On 8xx there is no need to kmap since highmem is not supported */ __flush_dcache_icache(page_address(page)); #else __flush_dcache_icache_phys(page_to_pfn(page) << PAGE_SHIFT); #endif - } + void clear_user_page(void *page, unsigned long vaddr, struct page *pg) { clear_page(page); @@ -485,13 +494,13 @@ EXPORT_SYMBOL(flush_icache_user_range); * This must always be called with the pte lock held. */ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, - pte_t pte) + pte_t *ptep) { #ifdef CONFIG_PPC_STD_MMU unsigned long access = 0, trap; /* We only want HPTEs for linux PTEs that have _PAGE_ACCESSED set */ - if (!pte_young(pte) || address >= TASK_SIZE) + if (!pte_young(*ptep) || address >= TASK_SIZE) return; /* We try to figure out if we are coming from an instruction |