Commit cfb979f7 authored by Aurabindo Pillai's avatar Aurabindo Pillai Committed by Alex Deucher
Browse files

drm/amd: Add debug mask for subviewport mclk switch 



[Why&How]
Expose a new dc debug mask enum to force a subviewport memory clock switch
to facilitate easy testing.

Signed-off-by: default avatarAurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent c5da61cf

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

+3 −0
Original line number Diff line number Diff line
@@ -1560,6 +1560,9 @@ static int amdgpu_dm_init(struct amdgpu_device *adev) 
	if (amdgpu_dc_debug_mask & DC_DISABLE_CLOCK_GATING)

		adev->dm.dc->debug.disable_clock_gate = true;



	if (amdgpu_dc_debug_mask & DC_FORCE_SUBVP_MCLK_SWITCH)

		adev->dm.dc->debug.force_subvp_mclk_switch = true;



	r = dm_dmub_hw_init(adev);

	if (r) {

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

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

+1 −0
Original line number Diff line number Diff line
@@ -248,6 +248,7 @@ enum DC_DEBUG_MASK { 
	DC_DISABLE_DSC = 0x4,

	DC_DISABLE_CLOCK_GATING = 0x8,

	DC_DISABLE_PSR = 0x10,

	DC_FORCE_SUBVP_MCLK_SWITCH = 0x20,

};



enum amd_dpm_forced_level;