Commit 18a77bda authored by Kevin Gao's avatar Kevin Gao Committed by Alex Deucher
Browse files

drm/amd/display: Add skip rIOMMU dc config option 



[Why]
Need option to skip rIOMMU calls for dcn21.

[How]
Added rIOMMU dc config option and check for whether to skip
rIOMMU calls.

Reviewed-by: default avatarNicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Signed-off-by: default avatarKevin Gao <kgao1003@amd.com>
Signed-off-by: default avatarRay Wu <ray.wu@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent c00a39f6

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

+1 −0
Original line number Diff line number Diff line
@@ -448,6 +448,7 @@ struct dc_config { 
	bool enable_windowed_mpo_odm;

	bool forceHBR2CP2520; // Used for switching between test patterns TPS4 and CP2520

	uint32_t allow_edp_hotplug_detection;

	bool skip_riommu_prefetch_wa;

	bool clamp_min_dcfclk;

	uint64_t vblank_alignment_dto_params;

	uint8_t  vblank_alignment_max_frame_time_diff;

drivers/gpu/drm/amd/display/dc/hubbub/dcn21/dcn21_hubbub.c

+3 −3
Original line number Diff line number Diff line
@@ -132,9 +132,9 @@ int hubbub21_init_dchub(struct hubbub *hubbub, 
		// Init VMID 0 based on PA config

		dcn20_vmid_setup(&hubbub1->vmid[0], &phys_config);

	}



	if (!hubbub1->base.ctx->dc->config.skip_riommu_prefetch_wa) {

		dcn21_dchvm_init(hubbub);



	}

	return hubbub1->num_vmid;

}