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drm/ttm: add set_pages_wb for handling page order more than zero 

Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Roger He <Hongbo.He@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Roger He 2017-11-22 15:09:33 +08:00 committed by Alex Deucher
parent 6d5e4e3213
commit 54ddc5f2d7
1 changed files with 11 additions and 0 deletions
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11
drivers/gpu/drm/ttm/ttm_page_alloc.c
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@ -223,6 +223,17 @@ static struct kobj_type ttm_pool_kobj_type = {
static struct ttm_pool_manager *_manager;
#ifndef CONFIG_X86
static int set_pages_wb(struct page *page, int numpages)
{
#if IS_ENABLED(CONFIG_AGP)
int i;
for (i = 0; i < numpages; i++)
unmap_page_from_agp(page++);
#endif
return 0;
}
static int set_pages_array_wb(struct page **pages, int addrinarray)
{
#if IS_ENABLED(CONFIG_AGP)