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drm/ttm: Use set_pages_array_wc instead of set_memory_wc. 

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

Signed-off-by: Pauli Nieminen <suokkos@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Pauli Nieminen 2010-04-01 12:45:02 +00:00 committed by Dave Airlie
parent 4f64625412
commit 975efdb1bf
1 changed files with 1 additions and 11 deletions
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12
drivers/gpu/drm/ttm/ttm_page_alloc.c
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@ -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