From 4f64625412be120cef9e9b97e88c406ec2c78027 Mon Sep 17 00:00:00 2001 From: Pauli Nieminen Date: Thu, 1 Apr 2010 12:45:01 +0000 Subject: arch/x86: Add array variants for setting memory to wc caching. Setting single memory pages at a time to wc takes a lot time in cache flush. To reduce number of cache flush set_pages_array_wc and set_memory_array_wc can be used to set multiple pages to WC with single cache flush. This improves allocation performance for wc cached pages in drm/ttm. CC: Suresh Siddha CC: Venkatesh Pallipadi Signed-off-by: Pauli Nieminen Signed-off-by: Dave Airlie --- arch/x86/include/asm/cacheflush.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/x86/include') diff --git a/arch/x86/include/asm/cacheflush.h b/arch/x86/include/asm/cacheflush.h index 634c40a739a6..d92d63a6286b 100644 --- a/arch/x86/include/asm/cacheflush.h +++ b/arch/x86/include/asm/cacheflush.h @@ -139,9 +139,11 @@ int set_memory_np(unsigned long addr, int numpages); int set_memory_4k(unsigned long addr, int numpages); int set_memory_array_uc(unsigned long *addr, int addrinarray); +int set_memory_array_wc(unsigned long *addr, int addrinarray); int set_memory_array_wb(unsigned long *addr, int addrinarray); int set_pages_array_uc(struct page **pages, int addrinarray); +int set_pages_array_wc(struct page **pages, int addrinarray); int set_pages_array_wb(struct page **pages, int addrinarray); /* -- cgit v1.2.3