diff options
| author | Huang Rui <ray.huang@amd.com> | 2020-12-16 17:21:27 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-06-04 16:03:12 -0400 |
| commit | e15a5fb9b6ac2556a4fe59dba5faa34c695e8b73 (patch) | |
| tree | 551a96ee3cb17952c9de6452d24da20e63e7a58d /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | |
| parent | cba00ce82d348970cf20efaa042e0d4faa821217 (diff) | |
| download | linux-e15a5fb9b6ac2556a4fe59dba5faa34c695e8b73.tar.gz | |
drm/amdgpu: introduce a stolen reserved buffer to protect specific buffer region (v2)
Some ASICs such as Yellow Carp needs to reserve a region of video memory
to avoid access from driver. So this patch is to introduce a stolen
reserved buffer to protect specific buffer region.
v2: free this buffer in amdgpu_ttm_fini.
Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-and-Tested-by: Aaron Liu <aaron.liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h index 74a7021592c3..e69f3e8e06e5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h @@ -84,6 +84,10 @@ struct amdgpu_mman { struct amdgpu_bo *stolen_extended_memory; bool keep_stolen_vga_memory; + struct amdgpu_bo *stolen_reserved_memory; + uint64_t stolen_reserved_offset; + uint64_t stolen_reserved_size; + /* discovery */ uint8_t *discovery_bin; uint32_t discovery_tmr_size; |