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| author | Christian König <christian.koenig@amd.com> | 2017-03-29 13:41:57 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-04-04 23:34:27 -0400 |
| commit | 89bb5752c054e971fd453456792cb3db3d738f75 (patch) | |
| tree | 2d9a9d7b1d1954f62788074ae5767046ed84b651 /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | f75e237c41587b5e438cbf5d5c90ffcda4080955 (diff) | |
| download | linux-89bb5752c054e971fd453456792cb3db3d738f75.tar.bz2 | |
drm/amdgpu: use TTM_PL_FLAG_CONTIGUOUS v2
Implement AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS using TTM_PL_FLAG_CONTIGUOUS
instead of a placement limit. That allows us to better handle CPU
accessible placements.
v2: prevent virtual BO start address from overflowing
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_object.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 5aac350b007f..4dddeafabd09 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -122,20 +122,19 @@ static void amdgpu_ttm_placement_init(struct amdgpu_device *adev, if (domain & AMDGPU_GEM_DOMAIN_VRAM) { unsigned visible_pfn = adev->mc.visible_vram_size >> PAGE_SHIFT; - unsigned lpfn = 0; - - /* This forces a reallocation if the flag wasn't set before */ - if (flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS) - lpfn = adev->mc.real_vram_size >> PAGE_SHIFT; places[c].fpfn = 0; - places[c].lpfn = lpfn; + places[c].lpfn = 0; places[c].flags = TTM_PL_FLAG_WC | TTM_PL_FLAG_UNCACHED | TTM_PL_FLAG_VRAM; + if (flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED) places[c].lpfn = visible_pfn; else places[c].flags |= TTM_PL_FLAG_TOPDOWN; + + if (flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS) + places[c].flags |= TTM_PL_FLAG_CONTIGUOUS; c++; } |