diff options
| author |   Roman Li <roman.li@amd.com> | 2024-05-06 15:34:55 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2024-05-20 16:20:24 -0400 |
| commit | a329598e9eab8cb0f33ec0ede1f7a4e290b1be1c (patch) | |
| tree | 00264da4dc49aa7e5e9dd87870fe08aef4a3e127 | |
| parent | drm/amd/display: Add 3DLUT DMA load trigger (diff) | |
| download | linux-rng-a329598e9eab8cb0f33ec0ede1f7a4e290b1be1c.tar.xz linux-rng-a329598e9eab8cb0f33ec0ede1f7a4e290b1be1c.zip | |
drm/amd/display: Clear shared dmub firmware state on init
[Why]
Reset the shared dmub firmware region on dmub hw init to start with
known state.
[How]
Memset the shared region to 0 in dmub_hw_init().
Suggested-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 |
1 files changed, 3 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 b2e37f6bea5b..3bcfc95ad36a 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1207,6 +1207,9 @@ static int dm_dmub_hw_init(struct amdgpu_device *adev) memset(fb_info->fb[DMUB_WINDOW_6_FW_STATE].cpu_addr, 0, fb_info->fb[DMUB_WINDOW_6_FW_STATE].size); + memset(fb_info->fb[DMUB_WINDOW_SHARED_STATE].cpu_addr, 0, + fb_info->fb[DMUB_WINDOW_SHARED_STATE].size); + /* Initialize hardware. */ memset(&hw_params, 0, sizeof(hw_params)); hw_params.fb_base = adev->gmc.fb_start; |