Commit 792a0cdd authored by Leo Li's avatar Leo Li Committed by Alex Deucher
Browse files

drm/amd/display: Add visualconfirm module parameter 



[Why]

Being able to configure visual confirm at boot or in cmdline is helpful
when debugging.

[How]

Add a module parameter to configure DC visual confirm, which works the
same way as the equivalent debugfs entry.

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 f7bacd97

drivers/gpu/drm/amd/amdgpu/amdgpu.h

+1 −0
Original line number Diff line number Diff line
@@ -197,6 +197,7 @@ extern uint amdgpu_smu_memory_pool_size; 
extern int amdgpu_smu_pptable_id;

extern uint amdgpu_dc_feature_mask;

extern uint amdgpu_dc_debug_mask;

extern uint amdgpu_dc_visual_confirm;

extern uint amdgpu_dm_abm_level;

extern int amdgpu_backlight;

extern struct amdgpu_mgpu_info mgpu_info;

drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c

+4 −0
Original line number Diff line number Diff line
@@ -168,6 +168,7 @@ int amdgpu_smu_pptable_id = -1; 
 */

uint amdgpu_dc_feature_mask = 2;

uint amdgpu_dc_debug_mask;

uint amdgpu_dc_visual_confirm;

int amdgpu_async_gfx_ring = 1;

int amdgpu_mcbp;

int amdgpu_discovery = -1;
@@ -828,6 +829,9 @@ module_param_named(dcfeaturemask, amdgpu_dc_feature_mask, uint, 0444); 
MODULE_PARM_DESC(dcdebugmask, "all debug options disabled (default))");

module_param_named(dcdebugmask, amdgpu_dc_debug_mask, uint, 0444);



MODULE_PARM_DESC(visualconfirm, "Visual confirm (0 = off (default), 1 = MPO, 5 = PSR)");

module_param_named(visualconfirm, amdgpu_dc_visual_confirm, uint, 0444);



/**

 * DOC: abmlevel (uint)

 * Override the default ABM (Adaptive Backlight Management) level used for DC

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

+2 −0
Original line number Diff line number Diff line
@@ -1538,6 +1538,8 @@ 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;



	adev->dm.dc->debug.visual_confirm = amdgpu_dc_visual_confirm;



	r = dm_dmub_hw_init(adev);

	if (r) {

		DRM_ERROR("DMUB interface failed to initialize: status=%d\n", r);