Commit d5b5d6cb authored by Gianna Binder's avatar Gianna Binder Committed by Alex Deucher
Browse files

drm/amd/display: Create debugging mechanism for Gaming FAMS 



[WHY]
To enable FAMS even during gaming sessions.

[HOW]
By leveraging a new dc.debug parameter.

Reviewed-by: default avatarFelipe Clark <felipe.clark@amd.com>
Acked-by: default avatarRodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: default avatarGianna Binder <gianna.binder@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 613a7956

drivers/gpu/drm/amd/display/dc/dc.h

+1 −0
Original line number Diff line number Diff line
@@ -850,6 +850,7 @@ struct dc_debug_options { 
	/* Enable dmub aux for legacy ddc */

	bool enable_dmub_aux_for_legacy_ddc;

	bool disable_fams;

	bool disable_fams_gaming;

	/* FEC/PSR1 sequence enable delay in 100us */

	uint8_t fec_enable_delay_in100us;

	bool enable_driver_sequence_debug;

drivers/gpu/drm/amd/display/dc/dcn30/dcn30_resource.c

+1 −2
Original line number Diff line number Diff line
@@ -1987,11 +1987,10 @@ bool dcn30_can_support_mclk_switch_using_fw_based_vblank_stretch(struct dc *dc, 
	if (!is_refresh_rate_support_mclk_switch_using_fw_based_vblank_stretch(context))

		return false;



	// check if freesync enabled

	if (!context->streams[0]->allow_freesync)

		return false;



	if (context->streams[0]->vrr_active_variable)

	if (context->streams[0]->vrr_active_variable && dc->debug.disable_fams_gaming)

		return false;



	context->streams[0]->fpo_in_use = true;

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_resource_helpers.c

+1 −2
Original line number Diff line number Diff line
@@ -595,11 +595,10 @@ struct dc_stream_state *dcn32_can_support_mclk_switch_using_fw_based_vblank_stre 
	if (!is_refresh_rate_support_mclk_switch_using_fw_based_vblank_stretch(fpo_candidate_stream, fpo_vactive_margin_us))

		return NULL;



	// check if freesync enabled

	if (!fpo_candidate_stream->allow_freesync)

		return NULL;



	if (fpo_candidate_stream->vrr_active_variable)

	if (fpo_candidate_stream->vrr_active_variable && dc->debug.disable_fams_gaming)

		return NULL;



	return fpo_candidate_stream;