From 9253e11503b4c091509c723f3330119b4fc8c7f0 Mon Sep 17 00:00:00 2001 From: Aurabindo Pillai Date: Wed, 21 Apr 2021 15:05:11 -0400 Subject: 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: 93669c8e480dca ("drm/amd/display: get socBB from VBIOS") Signed-off-by: Aurabindo Pillai Reviewed-by: Rodrigo Siqueira Acked-by: Alex Deucher Acked-by: Bindu Ramamurthy Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- .../gpu/drm/amd/display/dc/dcn303/dcn303_resource.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c') diff --git a/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c b/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c index 88b609c32b0a..34b89464ae02 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c @@ -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; } -- cgit