diff options
| author | Samuel Li <Samuel.Li@amd.com> | 2017-12-08 16:18:59 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 14:17:41 -0500 |
| commit | 09052fc3769c98e1ce1c4f3398da8201548fc449 (patch) | |
| tree | 3e0458c399b494996ed5268fc2969bb36419b8c7 /drivers/gpu/drm/amd/amdgpu/amdgpu.h | |
| parent | 6e227308a91db544c6f91edcf37c56764db2ae47 (diff) | |
drm/amdgpu: Move to gtt before cpu accesses dma buf.
To improve cpu read performance. This is implemented for APUs currently.
v2: Adapt to change https://lists.freedesktop.org/archives/amd-gfx/2017-October/015174.html
v3: Adapt to change "forward begin_cpu_access callback to drivers"
v4: Instead of v3, reuse drm_gem dmabuf_ops here. Also some minor fixes as suggested.
v5: only set dma_buf ops when it is valid (Samuel)
Signed-off-by: Samuel Li <Samuel.Li@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 0059a060958a..2ca14d6dd6f1 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -418,6 +418,8 @@ amdgpu_gem_prime_import_sg_table(struct drm_device *dev, struct dma_buf *amdgpu_gem_prime_export(struct drm_device *dev, struct drm_gem_object *gobj, int flags); +struct drm_gem_object *amdgpu_gem_prime_import(struct drm_device *dev, + struct dma_buf *dma_buf); int amdgpu_gem_prime_pin(struct drm_gem_object *obj); void amdgpu_gem_prime_unpin(struct drm_gem_object *obj); struct reservation_object *amdgpu_gem_prime_res_obj(struct drm_gem_object *); |