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| author | Zhan Liu <zhan.liu@amd.com> | 2021-03-08 20:20:44 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-03-23 23:10:49 -0400 |
| commit | 0dd795323405680f68cc16a471d19bc3369cc519 (patch) | |
| tree | 3ccce3d9dae826fe413e51b5430b714ea171458d /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | 89551f2387f5bc3c7b8ea0696b467529f6c86f53 (diff) | |
| download | lwn-0dd795323405680f68cc16a471d19bc3369cc519.tar.gz lwn-0dd795323405680f68cc16a471d19bc3369cc519.zip | |
drm/amdgpu/display: Implement functions to let DC allocate GPU memory
[Why]
DC needs to communicate with PM FW through GPU memory. In order
to do so we need to be able to allocate memory from within DC.
[How]
Call amdgpu_bo_create_kernel to allocate GPU memory and use a
list in amdgpu_display_manager to track our allocations so we
can clean them up later.
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Zhan Liu <zhan.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index 1d6e18adcf8b..4ca88ce0d44e 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1086,6 +1086,7 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) init_data.flags.power_down_display_on_boot = true; + INIT_LIST_HEAD(&adev->dm.da_list); /* Display Core create. */ adev->dm.dc = dc_create(&init_data); |