[PATCH 6/7] drm/ttm: Use set_pages_array_wc instead of set_memory_wc.

[Pauli Nieminen <suokkos@gmail.com>]

Using single call to set multiple pages to wc reduces number of expensive cache
flushes.

Signed-off-by: Pauli Nieminen <suokkos@gmail.com>
---
 drivers/gpu/drm/ttm/ttm_page_alloc.c |   12 +-----------
 1 files changed, 1 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index ded366d..2dfbd12 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -113,17 +113,7 @@ static struct ttm_pool_manager _manager = {
 	.page_alloc_inited	= ATOMIC_INIT(0)
 };
 
-#ifdef CONFIG_X86
-/* TODO: add this to x86 like _uc, this version here is inefficient */
-static int set_pages_array_wc(struct page **pages, int addrinarray)
-{
-	int i;
-
-	for (i = 0; i < addrinarray; i++)
-		set_memory_wc((unsigned long)page_address(pages[i]), 1);
-	return 0;
-}
-#else
+#ifndef CONFIG_X86
 static int set_pages_array_wb(struct page **pages, int addrinarray)
 {
 #ifdef TTM_HAS_AGP
-- 
1.6.3.3


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