Commit 9253e115 authored by Aurabindo Pillai's avatar Aurabindo Pillai Committed by Alex Deucher
Browse files

drm/amd/display: get socBB from VBIOS for dcn302 and dcn303 



[why]
Some SOC BB paramters may vary per SKU, and it does
not make sense for driver to hardcode these values.
This change was added for dcn30 and dcn301, but not
for dcn302 and dcn303

[how]
Parse the values from VBIOS if available, and use
them if valid

Fixes: 93669c8e ("drm/amd/display: get socBB from VBIOS")
Signed-off-by: default avatarAurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: default avatarRodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Acked-by: default avatarBindu Ramamurthy <bindu.r@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent d8ddeb15

drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c

+20 −0
Original line number Diff line number Diff line
@@ -1102,6 +1102,26 @@ static bool init_soc_bounding_box(struct dc *dc, struct resource_pool *pool) 
	loaded_ip->max_num_dpp = pool->pipe_count;

	loaded_ip->clamp_min_dcfclk = dc->config.clamp_min_dcfclk;

	dcn20_patch_bounding_box(dc, loaded_bb);



	if (dc->ctx->dc_bios->funcs->get_soc_bb_info) {

		struct bp_soc_bb_info bb_info = { 0 };



		if (dc->ctx->dc_bios->funcs->get_soc_bb_info(

			    dc->ctx->dc_bios, &bb_info) == BP_RESULT_OK) {

			if (bb_info.dram_clock_change_latency_100ns > 0)

				dcn3_02_soc.dram_clock_change_latency_us =

					bb_info.dram_clock_change_latency_100ns * 10;



			if (bb_info.dram_sr_enter_exit_latency_100ns > 0)

				dcn3_02_soc.sr_enter_plus_exit_time_us =

					bb_info.dram_sr_enter_exit_latency_100ns * 10;



			if (bb_info.dram_sr_exit_latency_100ns > 0)

				dcn3_02_soc.sr_exit_time_us =

					bb_info.dram_sr_exit_latency_100ns * 10;

		}

	}



	return true;

}

drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c

+20 −0
Original line number Diff line number Diff line
@@ -1028,6 +1028,26 @@ static bool init_soc_bounding_box(struct dc *dc, struct resource_pool *pool) 
	loaded_ip->max_num_dpp = pool->pipe_count;

	loaded_ip->clamp_min_dcfclk = dc->config.clamp_min_dcfclk;

	dcn20_patch_bounding_box(dc, loaded_bb);



	if (dc->ctx->dc_bios->funcs->get_soc_bb_info) {

		struct bp_soc_bb_info bb_info = { 0 };



		if (dc->ctx->dc_bios->funcs->get_soc_bb_info(

			    dc->ctx->dc_bios, &bb_info) == BP_RESULT_OK) {

			if (bb_info.dram_clock_change_latency_100ns > 0)

				dcn3_03_soc.dram_clock_change_latency_us =

					bb_info.dram_clock_change_latency_100ns * 10;



			if (bb_info.dram_sr_enter_exit_latency_100ns > 0)

				dcn3_03_soc.sr_enter_plus_exit_time_us =

					bb_info.dram_sr_enter_exit_latency_100ns * 10;



			if (bb_info.dram_sr_exit_latency_100ns > 0)

				dcn3_03_soc.sr_exit_time_us =

					bb_info.dram_sr_exit_latency_100ns * 10;

		}

	}



	return true;

}