diff options
Diffstat (limited to 'arch/powerpc/mm/mem.c')
| -rw-r--r-- | arch/powerpc/mm/mem.c | 28 |
1 files changed, 22 insertions, 6 deletions
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index afab328d0887..ed64ca80d5fd 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -494,14 +494,30 @@ void flush_dcache_page(struct page *page) } EXPORT_SYMBOL(flush_dcache_page); -void flush_dcache_icache_page(struct page *page) +static void flush_dcache_icache_hugepage(struct page *page) { -#ifdef CONFIG_HUGETLB_PAGE - if (PageCompound(page)) { - flush_dcache_icache_hugepage(page); - return; + int i; + void *start; + + BUG_ON(!PageCompound(page)); + + for (i = 0; i < compound_nr(page); i++) { + if (!PageHighMem(page)) { + __flush_dcache_icache(page_address(page+i)); + } else { + start = kmap_atomic(page+i); + __flush_dcache_icache(start); + kunmap_atomic(start); + } } -#endif +} + +void flush_dcache_icache_page(struct page *page) +{ + + if (PageCompound(page)) + return flush_dcache_icache_hugepage(page); + #if defined(CONFIG_PPC_8xx) || defined(CONFIG_PPC64) /* On 8xx there is no need to kmap since highmem is not supported */ __flush_dcache_icache(page_address(page)); |