diff options
| author | Eric Huang <jinhuieric.huang@amd.com> | 2021-02-28 00:51:19 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-03-24 06:00:44 +0300 |
| commit | 06bfc045d54cd7cb769aab5af45f6022c2ce77a7 (patch) | |
| tree | 2c5fc9d9ef32273f75fe9b72982767a3478f66ed /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
| parent | 761d86d37f86ebba77e59fa59ccef4dc2f38674f (diff) | |
| download | linux-06bfc045d54cd7cb769aab5af45f6022c2ce77a7.tar.xz | |
drm/amdgpu: set CPU mapping of vram as cached for A+A mode
New A+A HW supports cached vram mapped to cpu.
Signed-off-by: Eric Huang <jinhuieric.huang@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_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 0ea1b68e7bb9..c5fea144b759 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -673,7 +673,10 @@ static int amdgpu_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_reso mem->bus.offset += adev->gmc.aper_base; mem->bus.is_iomem = true; - mem->bus.caching = ttm_write_combined; + if (adev->gmc.xgmi.connected_to_cpu) + mem->bus.caching = ttm_cached; + else + mem->bus.caching = ttm_write_combined; break; default: return -EINVAL; |