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authorJerome Glisse <jglisse@redhat.com>2012-11-28 13:47:55 -0500
committerAlex Deucher <alexander.deucher@amd.com>2012-12-07 19:48:21 -0500
commit0d0b3e7443bed6b49cb90fe7ddc4b5578a83a88d (patch)
tree7736e4b935ac33c42f0435a9c7c2d80afdb04aab /drivers/gpu/drm/radeon/radeon_object.c
parent57f570838341507682b7705f1d950608ef2182bd (diff)
drm/radeon: use cached memory when evicting for vram on non agp
Force the use of cached memory when evicting from vram on non agp hardware. Also force write combine on agp hw. This is to insure the minimum cache type change when allocating memory and improving memory eviction especialy on pci/pcie hw. Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_object.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_object.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index b91118ccef86..3f9f3bbc4681 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -88,10 +88,20 @@ void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain)
if (domain & RADEON_GEM_DOMAIN_VRAM)
rbo->placements[c++] = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED |
TTM_PL_FLAG_VRAM;
- if (domain & RADEON_GEM_DOMAIN_GTT)
- rbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_TT;
- if (domain & RADEON_GEM_DOMAIN_CPU)
- rbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
+ if (domain & RADEON_GEM_DOMAIN_GTT) {
+ if (rbo->rdev->flags & RADEON_IS_AGP) {
+ rbo->placements[c++] = TTM_PL_FLAG_WC | TTM_PL_FLAG_TT;
+ } else {
+ rbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_TT;
+ }
+ }
+ if (domain & RADEON_GEM_DOMAIN_CPU) {
+ if (rbo->rdev->flags & RADEON_IS_AGP) {
+ rbo->placements[c++] = TTM_PL_FLAG_WC | TTM_PL_FLAG_TT;
+ } else {
+ rbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_TT;
+ }
+ }
if (!c)
rbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
rbo->placement.num_placement = c;