From 792a0cdde34d417bc2c8266d8015c5fd58d44a0d Mon Sep 17 00:00:00 2001 From: Leo Li Date: Wed, 6 Jul 2022 14:48:52 -0400 Subject: [PATCH] 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: Leo Li Reviewed-by: Rodrigo Siqueira Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 1 + drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 4 ++++ drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 ++ 3 files changed, 7 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 3aa8ae1bc35a..b075845a5328 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -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; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 30f8c46f16b4..429fcdf28836 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -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 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 a9f9c929dca6..22a3f8972705 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -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); -- 2.20.1