Commit 9d63fbf7 authored by Aurabindo Pillai's avatar Aurabindo Pillai Committed by Alex Deucher
Browse files

drm/amd: Add debug option to disable subvp 



Some monitors flicker when subvp is enabled which maybe related to
an uncommon timing they use. To isolate such issues, add a debug
option to help isolate this the issue for debugging.

Signed-off-by: default avatarAurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Suggested-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 36a21f26

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

+3 −0
Original line number Diff line number Diff line
@@ -2034,6 +2034,9 @@ 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;



	if (amdgpu_dc_debug_mask & DC_DISABLE_SUBVP)

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



	if (amdgpu_dc_debug_mask & DC_ENABLE_DML2) {

		adev->dm.dc->debug.using_dml2 = true;

		adev->dm.dc->debug.using_dml21 = true;

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

+5 −0
Original line number Diff line number Diff line
@@ -349,6 +349,11 @@ enum DC_DEBUG_MASK { 
	 * @DC_DISABLE_HDMI_CEC: If set, disable HDMI-CEC feature in amdgpu driver.

	 */

	DC_DISABLE_HDMI_CEC = 0x10000,



	/*

	 * @DC_DISABLE_SUBVP: If set, disable DCN Sub-Viewport feature in amdgpu driver.

	 */

	DC_DISABLE_SUBVP = 0x20000,

};



enum amd_dpm_forced_level;