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| author | Shashank Sharma <shashank.sharma@amd.com> | 2021-02-13 19:37:24 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-03-24 06:01:42 +0300 |
| commit | e36ccf9a96aab1e3a7cb2ed36935eaea83b64710 (patch) | |
| tree | 45a4a26149b309f678dc8cc6ae67723d5824f9c3 /drivers/gpu/drm/amd/amdgpu | |
| parent | 0b46bc3a9d17ddc98d0cb7cb78e9b9b77e9162a3 (diff) | |
| download | linux-e36ccf9a96aab1e3a7cb2ed36935eaea83b64710.tar.xz | |
drm/amdgpu: Set GTT_USWC flag to enable freesync v2
This patch sets 'AMDGPU_GEM_CREATE_CPU_GTT_USWC' as input
parameter flag, during object creation of an imported DMA
buffer.
In absence of this flag:
1. Function amdgpu_display_supported_domains() doesn't add
AMDGPU_GEM_DOMAIN_GTT as supported domain.
2. Due to which, Function amdgpu_display_user_framebuffer_create()
refuses to create framebuffer for imported DMA buffers.
3. Due to which, AddFB() IOCTL fails.
4. Due to which, amdgpu_present_check_flip() check fails in DDX
5. Due to which DDX driver doesn't allow flips (goes to blitting)
6. Due to which setting Freesync/VRR property fails for PRIME buffers.
So, this patch finally enables Freesync with PRIME buffer offloading.
v2 (chk): instead of just checking the flag we copy it over if the
exporter is an amdgpu device as well.
Signed-off-by: Shashank Sharma <shashank.sharma@amd.com>
Signed-off-by: Christian König <christian.koenig@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')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c index f81338617c79..e0c4f7c7f1b9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c @@ -429,14 +429,22 @@ amdgpu_dma_buf_create_obj(struct drm_device *dev, struct dma_buf *dma_buf) { struct dma_resv *resv = dma_buf->resv; struct amdgpu_device *adev = drm_to_adev(dev); - struct amdgpu_bo *bo; struct drm_gem_object *gobj; + struct amdgpu_bo *bo; + uint64_t flags = 0; int ret; dma_resv_lock(resv, NULL); + + if (dma_buf->ops == &amdgpu_dmabuf_ops) { + struct amdgpu_bo *other = gem_to_amdgpu_bo(dma_buf->priv); + + flags |= other->flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC; + } + ret = amdgpu_gem_object_create(adev, dma_buf->size, PAGE_SIZE, - AMDGPU_GEM_DOMAIN_CPU, - 0, ttm_bo_type_sg, resv, &gobj); + AMDGPU_GEM_DOMAIN_CPU, flags, + ttm_bo_type_sg, resv, &gobj); if (ret) goto error; |