diff options
| author | Leo Li <sunpeng.li@amd.com> | 2022-07-06 14:56:28 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-07-25 09:31:03 -0400 |
| commit | 8813381a62e1f1703f8fbeccc5fa4fcc988be882 (patch) | |
| tree | 5fe1a5420c7af1042e60e3731a27a51158d9739f /drivers/gpu/drm | |
| parent | 792a0cdde34d417bc2c8266d8015c5fd58d44a0d (diff) | |
| download | linux-8813381a62e1f1703f8fbeccc5fa4fcc988be882.tar.bz2 | |
drm/amd/display: Add dcdebugmask option for disabling MPO
[Why & How]
It's useful to disable MPO when debugging or testing. Therefore, add a
dcdebugmask option to disable MPO.
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/include/amd_shared.h | 1 |
2 files changed, 5 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 22a3f8972705..8660d93cc405 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4197,6 +4197,10 @@ static int amdgpu_dm_initialize_drm_device(struct amdgpu_device *adev) for (i = 0; i < dm->dc->caps.max_planes; ++i) { struct dc_plane_cap *plane = &dm->dc->caps.planes[i]; + /* Do not create overlay if MPO disabled */ + if (amdgpu_dc_debug_mask & DC_DISABLE_MPO) + break; + if (plane->type != DC_PLANE_TYPE_DCN_UNIVERSAL) continue; diff --git a/drivers/gpu/drm/amd/include/amd_shared.h b/drivers/gpu/drm/amd/include/amd_shared.h index 1db21d13726d..f175e65b853a 100644 --- a/drivers/gpu/drm/amd/include/amd_shared.h +++ b/drivers/gpu/drm/amd/include/amd_shared.h @@ -249,6 +249,7 @@ enum DC_DEBUG_MASK { DC_DISABLE_CLOCK_GATING = 0x8, DC_DISABLE_PSR = 0x10, DC_FORCE_SUBVP_MCLK_SWITCH = 0x20, + DC_DISABLE_MPO = 0x40, }; enum amd_dpm_forced_level; |