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| author | Christian König <christian.koenig@amd.com> | 2016-08-15 17:00:22 +0200 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-10-25 14:38:13 -0400 |
| commit | 03f48dd5d2085b978353a804635b6d34e77a5635 (patch) | |
| tree | 4f55e06c16167af6227c9a348c7e168c7346a6c8 /drivers/gpu/drm/amd/amdgpu/amdgpu_object.c | |
| parent | cfa32556e58d8a353666fb007f708a4955c6711c (diff) | |
| download | linux-03f48dd5d2085b978353a804635b6d34e77a5635.tar.bz2 | |
drm/amdgpu: add AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS flag v3
Add a flag noting that a BO must be created using linear VRAM
and set this flag on all in kernel users where appropriate.
Hopefully I haven't missed anything.
v2: add it in a few more places, fix CPU mapping.
v3: rename to VRAM_CONTIGUOUS, fix typo in CS code.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Tested-by: Mike Lothian <mike@fireburn.co.uk>
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 | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index aa074fac0c7f..ba41807eb917 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -245,7 +245,8 @@ int amdgpu_bo_create_kernel(struct amdgpu_device *adev, int r; r = amdgpu_bo_create(adev, size, align, true, domain, - AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED, + AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | + AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS, NULL, NULL, bo_ptr); if (r) { dev_err(adev->dev, "(%d) failed to allocate kernel bo\n", r); @@ -643,6 +644,8 @@ int amdgpu_bo_pin_restricted(struct amdgpu_bo *bo, u32 domain, return 0; } + + bo->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS; amdgpu_ttm_placement_from_domain(bo, domain); for (i = 0; i < bo->placement.num_placement; i++) { /* force to pin into visible video ram */ @@ -885,7 +888,9 @@ int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo) size = bo->mem.num_pages << PAGE_SHIFT; offset = bo->mem.start << PAGE_SHIFT; - if ((offset + size) <= adev->mc.visible_vram_size) + /* TODO: figure out how to map scattered VRAM to the CPU */ + if ((offset + size) <= adev->mc.visible_vram_size && + (abo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)) return 0; /* Can't move a pinned BO to visible VRAM */ @@ -893,6 +898,7 @@ int amdgpu_bo_fault_reserve_notify(struct ttm_buffer_object *bo) return -EINVAL; /* hurrah the memory is not visible ! */ + abo->flags |= AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS; amdgpu_ttm_placement_from_domain(abo, AMDGPU_GEM_DOMAIN_VRAM); lpfn = adev->mc.visible_vram_size >> PAGE_SHIFT; for (i = 0; i < abo->placement.num_placement; i++) { @@ -954,6 +960,8 @@ u64 amdgpu_bo_gpu_offset(struct amdgpu_bo *bo) WARN_ON_ONCE(!ww_mutex_is_locked(&bo->tbo.resv->lock) && !bo->pin_count); WARN_ON_ONCE(bo->tbo.mem.start == AMDGPU_BO_INVALID_OFFSET); + WARN_ON_ONCE(bo->tbo.mem.mem_type == TTM_PL_VRAM && + !(bo->flags & AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)); return bo->tbo.offset; } |