diff options
| author | Aurabindo Pillai <aurabindo.pillai@amd.com> | 2025-01-14 01:05:16 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-01-24 17:52:31 +0300 |
| commit | 9d63fbf75158811bccd08c5ac9b2db70427c3e51 (patch) | |
| tree | 25014f8ebe22dc2c9ebd99029f09b3ef15ec3eab | |
| parent | 36a21f2686dcf96bb61f1918f8b44156191b2543 (diff) | |
| download | linux-9d63fbf75158811bccd08c5ac9b2db70427c3e51.tar.xz | |
drm/amd: Add debug option to disable subvp
Some monitors flicker when subvp is enabled which maybe related to
an uncommon timing they use. To isolate such issues, add a debug
option to help isolate this the issue for debugging.
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Suggested-by: Alex Deucher <alexander.deucher@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 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/include/amd_shared.h | 5 |
2 files changed, 8 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 0ec178ca7434..4e8ad91bd870 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2034,6 +2034,9 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) if (amdgpu_dc_debug_mask & DC_FORCE_SUBVP_MCLK_SWITCH) adev->dm.dc->debug.force_subvp_mclk_switch = true; + if (amdgpu_dc_debug_mask & DC_DISABLE_SUBVP) + adev->dm.dc->debug.force_disable_subvp = true; + if (amdgpu_dc_debug_mask & DC_ENABLE_DML2) { adev->dm.dc->debug.using_dml2 = true; adev->dm.dc->debug.using_dml21 = true; diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h index 05bdb4e020ae..c3e6dd4f4e00 100644 --- a/drivers/gpu/drm/amd/include/amd_shared.h +++ b/drivers/gpu/drm/amd/include/amd_shared.h @@ -349,6 +349,11 @@ enum DC_DEBUG_MASK { * @DC_DISABLE_HDMI_CEC: If set, disable HDMI-CEC feature in amdgpu driver. */ DC_DISABLE_HDMI_CEC = 0x10000, + + /* + * @DC_DISABLE_SUBVP: If set, disable DCN Sub-Viewport feature in amdgpu driver. + */ + DC_DISABLE_SUBVP = 0x20000, }; enum amd_dpm_forced_level; |