From: Ivan Lipski Date: Fri, 17 Apr 2026 01:43:26 +0000 (-0400) Subject: drm/amd/display: Remove Mall, SubVP and MCLK from DCN42 X-Git-Tag: v7.2-rc1~141^2~24^2~81 X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=9bed715da7400dec80bd01d569889afa9b5daf98;p=thirdparty%2Flinux.git drm/amd/display: Remove Mall, SubVP and MCLK from DCN42 [Why&How] Remove MALL, SubVP and MCLK features from DCN42 resource file since it is an APU and does not support them. Assisted-by: Claude:opus-4.6 Reviewed-by: Dmytro Laktyushkin Signed-off-by: Ivan Lipski Signed-off-by: Tom Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c index 227eb13176636..acd76269abb42 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c @@ -1807,8 +1807,6 @@ static struct resource_funcs dcn42_res_pool_funcs = { .get_panel_config_defaults = dcn42_get_panel_config_defaults, .get_preferred_eng_id_dpia = dcn42_get_preferred_eng_id_dpia, .update_soc_for_wm_a = dcn30_update_soc_for_wm_a, - .add_phantom_pipes = dcn32_add_phantom_pipes, - .calculate_mall_ways_from_bytes = dcn32_calculate_mall_ways_from_bytes, .prepare_mcache_programming = dcn42_prepare_mcache_programming, .build_pipe_pix_clk_params = dcn42_build_pipe_pix_clk_params, .get_power_profile = dcn401_get_power_profile, @@ -1898,27 +1896,7 @@ static bool dcn42_resource_construct( dc->caps.cursor_not_scaled = true; dc->caps.min_horizontal_blanking_period = 80; dc->caps.dmdata_alloc_size = 2048; - dc->caps.mall_size_per_mem_channel = 4; - /* total size = mall per channel * num channels * 1024 * 1024 */ - dc->caps.mall_size_total = dc->caps.mall_size_per_mem_channel * - dc->ctx->dc_bios->vram_info.num_chans * 1048576; dc->caps.cursor_cache_size = dc->caps.max_cursor_size * dc->caps.max_cursor_size * 8; - dc->caps.cache_line_size = 64; - dc->caps.cache_num_ways = 16; - - /* Calculate the available MALL space */ - dc->caps.max_cab_allocation_bytes = - dcn32_calc_num_avail_chans_for_mall(dc, dc->ctx->dc_bios->vram_info.num_chans) * - dc->caps.mall_size_per_mem_channel * 1024 * 1024; - dc->caps.mall_size_total = dc->caps.max_cab_allocation_bytes; - - dc->caps.subvp_fw_processing_delay_us = 15; - dc->caps.subvp_drr_max_vblank_margin_us = 40; - dc->caps.subvp_prefetch_end_to_mall_start_us = 15; - dc->caps.subvp_swath_height_margin_lines = 16; - dc->caps.subvp_pstate_allow_width_us = 20; - dc->caps.subvp_vertical_int_margin_us = 30; - dc->caps.subvp_drr_vblank_start_margin_us = 100; // 100us margin dc->caps.max_slave_planes = 2; dc->caps.max_slave_yuv_planes = 2; @@ -2304,26 +2282,6 @@ static bool dcn42_resource_construct( resource_init_common_dml2_callbacks(dc, &dc->dml2_options); dc->dml2_options.callbacks.can_support_mclk_switch_using_fw_based_vblank_stretch = &dcn30_can_support_mclk_switch_using_fw_based_vblank_stretch; - dc->dml2_options.svp_pstate.callbacks.release_dsc = &dcn20_release_dsc; - dc->dml2_options.svp_pstate.callbacks.calculate_mall_ways_from_bytes = - pool->base.funcs->calculate_mall_ways_from_bytes; - - dc->dml2_options.svp_pstate.subvp_fw_processing_delay_us = dc->caps.subvp_fw_processing_delay_us; - dc->dml2_options.svp_pstate.subvp_prefetch_end_to_mall_start_us = dc->caps.subvp_prefetch_end_to_mall_start_us; - dc->dml2_options.svp_pstate.subvp_pstate_allow_width_us = dc->caps.subvp_pstate_allow_width_us; - dc->dml2_options.svp_pstate.subvp_swath_height_margin_lines = dc->caps.subvp_swath_height_margin_lines; - - dc->dml2_options.svp_pstate.force_disable_subvp = dc->debug.force_disable_subvp; - dc->dml2_options.svp_pstate.force_enable_subvp = dc->debug.force_subvp_mclk_switch; - - dc->dml2_options.mall_cfg.cache_line_size_bytes = dc->caps.cache_line_size; - dc->dml2_options.mall_cfg.cache_num_ways = dc->caps.cache_num_ways; - dc->dml2_options.mall_cfg.max_cab_allocation_bytes = - dc->caps.max_cab_allocation_bytes; - dc->dml2_options.mall_cfg.mblk_height_4bpe_pixels = DCN3_2_MBLK_HEIGHT_4BPE; - dc->dml2_options.mall_cfg.mblk_height_8bpe_pixels = DCN3_2_MBLK_HEIGHT_8BPE; - dc->dml2_options.mall_cfg.mblk_size_bytes = DCN3_2_MALL_MBLK_SIZE_BYTES; - dc->dml2_options.mall_cfg.mblk_width_pixels = DCN3_2_MBLK_WIDTH; dc->dml2_options.max_segments_per_hubp = 24; dc->dml2_options.det_segment_size = DCN42_CRB_SEGMENT_SIZE_KB;