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drm/amd/display: Add visualconfirm module parameter

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[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: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo Li 2022-07-06 14:48:52 -04:00 committed by Alex Deucher
parent f7bacd97af
commit 792a0cdde3
3 changed files with 7 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -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;

4
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
View File

@ -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

2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
View File

@ -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);