diff options
| author | Michel Dänzer <michel.daenzer@amd.com> | 2014-10-09 18:55:04 +0900 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-11-12 11:29:10 -0500 |
| commit | 2a85aedd117cab38fd29c2c1a15b4c7338850d53 (patch) | |
| tree | 5d4e6ca2095e18136e4df8d0722260b13e1b3996 /drivers/gpu/drm/radeon/radeon_ttm.c | |
| parent | c9da4a4b3820782753c1c455242eca7e5a69eedb (diff) | |
| download | linux-2a85aedd117cab38fd29c2c1a15b4c7338850d53.tar.bz2 | |
drm/radeon: Try evicting from CPU accessible to inaccessible VRAM first
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_ttm.c | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index 8624979afb65..cbe7b32d181c 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -198,7 +198,30 @@ static void radeon_evict_flags(struct ttm_buffer_object *bo, case TTM_PL_VRAM: if (rbo->rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready == false) radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_CPU); - else + else if (rbo->rdev->mc.visible_vram_size < rbo->rdev->mc.real_vram_size && + bo->mem.start < (rbo->rdev->mc.visible_vram_size >> PAGE_SHIFT)) { + unsigned fpfn = rbo->rdev->mc.visible_vram_size >> PAGE_SHIFT; + int i; + + /* Try evicting to the CPU inaccessible part of VRAM + * first, but only set GTT as busy placement, so this + * BO will be evicted to GTT rather than causing other + * BOs to be evicted from VRAM + */ + radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_VRAM | + RADEON_GEM_DOMAIN_GTT); + rbo->placement.num_busy_placement = 0; + for (i = 0; i < rbo->placement.num_placement; i++) { + if (rbo->placements[i].flags & TTM_PL_FLAG_VRAM) { + if (rbo->placements[0].fpfn < fpfn) + rbo->placements[0].fpfn = fpfn; + } else { + rbo->placement.busy_placement = + &rbo->placements[i]; + rbo->placement.num_busy_placement = 1; + } + } + } else radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_GTT); break; case TTM_PL_TT: |