Commit 8813381a authored by Leo Li's avatar Leo Li Committed by Alex Deucher
Browse files

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: default avatarLeo Li <sunpeng.li@amd.com>
Reviewed-by: default avatarRodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 792a0cdd

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

+4 −0
Original line number Diff line number Diff line
@@ -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;

drivers/gpu/drm/amd/include/amd_shared.h

+1 −0
Original line number Diff line number Diff line
@@ -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;