From: Relja Vojvodic Date: Tue, 17 Mar 2026 20:47:07 +0000 (-0400) Subject: Revert "drm/amd/display: Rework YCbCr422 DSC policy" X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=246808e7922056594311ad6ca11d31d2d8c27b01;p=thirdparty%2Fkernel%2Flinux.git Revert "drm/amd/display: Rework YCbCr422 DSC policy" Revert commit 19b79e4f2182 ("drm/amd/display: Rework YCbCr422 DSC policy") Reason for Revert: This commit is causing compliance failures Reviewed-by: Wenjing Liu Signed-off-by: Relja Vojvodic Signed-off-by: Chuanyu Tseng Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 48b523fabbbe0..ab7dea9d47f74 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -563,7 +563,6 @@ struct dc_config { bool frame_update_cmd_version2; struct spl_sharpness_range dcn_sharpness_range; struct spl_sharpness_range dcn_override_sharpness_range; - bool no_native422_support; }; enum visual_confirm { @@ -988,6 +987,7 @@ struct link_service; * causing an issue or not. */ struct dc_debug_options { + bool native422_support; bool disable_dsc; enum visual_confirm visual_confirm; int visual_confirm_rect_height; diff --git a/drivers/gpu/drm/amd/display/dc/dc_dsc.h b/drivers/gpu/drm/amd/display/dc/dc_dsc.h index 101bce6b8de64..9d18f1c080791 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_dsc.h +++ b/drivers/gpu/drm/amd/display/dc/dc_dsc.h @@ -52,7 +52,6 @@ struct dc_dsc_policy { uint32_t max_target_bpp; uint32_t min_target_bpp; bool enable_dsc_when_not_needed; - bool ycbcr422_simple; }; struct dc_dsc_config_options { diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c index 8dfb6dd14eb29..5b3584ad5b6b3 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dc_dsc.c @@ -680,6 +680,9 @@ static void get_dsc_enc_caps( } else { build_dsc_enc_caps(dsc, dsc_enc_caps); } + + if (dsc->ctx->dc->debug.native422_support) + dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_422 = 1; } /* Returns 'false' if no intersection was found for at least one capability. @@ -1097,14 +1100,13 @@ static bool setup_dsc_config( branch_max_throughput_mps = dsc_sink_caps->branch_overall_throughput_0_mps; break; case PIXEL_ENCODING_YCBCR422: - if (policy.ycbcr422_simple) { + is_dsc_possible = (bool)dsc_common_caps.color_formats.bits.YCBCR_NATIVE_422; + sink_per_slice_throughput_mps = dsc_sink_caps->throughput_mode_1_mps; + branch_max_throughput_mps = dsc_sink_caps->branch_overall_throughput_1_mps; + if (!is_dsc_possible) { is_dsc_possible = (bool)dsc_common_caps.color_formats.bits.YCBCR_SIMPLE_422; dsc_cfg->ycbcr422_simple = is_dsc_possible; sink_per_slice_throughput_mps = dsc_sink_caps->throughput_mode_0_mps; - } else { - is_dsc_possible = (bool)dsc_common_caps.color_formats.bits.YCBCR_NATIVE_422; - sink_per_slice_throughput_mps = dsc_sink_caps->throughput_mode_1_mps; - branch_max_throughput_mps = dsc_sink_caps->branch_overall_throughput_1_mps; } break; case PIXEL_ENCODING_YCBCR420: @@ -1404,7 +1406,6 @@ void dc_dsc_get_policy_for_timing(const struct dc_crtc_timing *timing, policy->min_target_bpp = 8; /* DP specs limits to 3 x bpc */ policy->max_target_bpp = 3 * bpc; - policy->ycbcr422_simple = true; break; case PIXEL_ENCODING_YCBCR420: /* DP specs limits to 6 */ diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dcn20/dcn20_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dcn20/dcn20_dsc.c index 6e1e759462bf9..242f1e6f0d8f7 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dcn20/dcn20_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dcn20/dcn20_dsc.c @@ -100,7 +100,7 @@ void dsc2_get_enc_caps(struct dsc_enc_caps *dsc_enc_caps, int pixel_clock_100Hz) dsc_enc_caps->color_formats.bits.RGB = 1; dsc_enc_caps->color_formats.bits.YCBCR_444 = 1; dsc_enc_caps->color_formats.bits.YCBCR_SIMPLE_422 = 1; - dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_422 = 1; + dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_422 = 0; dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_420 = 1; dsc_enc_caps->color_depth.bits.COLOR_DEPTH_8_BPC = 1; diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dcn35/dcn35_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dcn35/dcn35_dsc.c index 17acb64a9d804..e712985f7abdb 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dcn35/dcn35_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dcn35/dcn35_dsc.c @@ -128,7 +128,7 @@ void dsc35_get_single_enc_caps(struct dsc_enc_caps *dsc_enc_caps, unsigned int m dsc_enc_caps->color_formats.bits.RGB = 1; dsc_enc_caps->color_formats.bits.YCBCR_444 = 1; dsc_enc_caps->color_formats.bits.YCBCR_SIMPLE_422 = 1; - dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_422 = 1; + dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_422 = 0; dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_420 = 1; dsc_enc_caps->color_depth.bits.COLOR_DEPTH_8_BPC = 1; diff --git a/drivers/gpu/drm/amd/display/dc/dsc/dcn401/dcn401_dsc.c b/drivers/gpu/drm/amd/display/dc/dsc/dcn401/dcn401_dsc.c index bbb8b5b18a4e6..c1bdbb38c690b 100644 --- a/drivers/gpu/drm/amd/display/dc/dsc/dcn401/dcn401_dsc.c +++ b/drivers/gpu/drm/amd/display/dc/dsc/dcn401/dcn401_dsc.c @@ -78,7 +78,7 @@ static void dsc401_get_single_enc_caps(struct dsc_enc_caps *dsc_enc_caps, unsign dsc_enc_caps->color_formats.bits.RGB = 1; dsc_enc_caps->color_formats.bits.YCBCR_444 = 1; dsc_enc_caps->color_formats.bits.YCBCR_SIMPLE_422 = 1; - dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_422 = 1; + dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_422 = 0; dsc_enc_caps->color_formats.bits.YCBCR_NATIVE_420 = 1; dsc_enc_caps->color_depth.bits.COLOR_DEPTH_8_BPC = 1; diff --git a/drivers/gpu/drm/amd/display/dc/link/link_detection.c b/drivers/gpu/drm/amd/display/dc/link/link_detection.c index 7f1761080aba0..b761f330311f3 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_detection.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_detection.c @@ -781,8 +781,10 @@ static void restore_phy_clocks_for_destructive_link_verification(const struct dc } static void verify_link_capability_destructive(struct dc_link *link, + struct dc_sink *sink, enum dc_detect_reason reason) { + (void)sink; bool should_prepare_phy_clocks = should_prepare_phy_clocks_for_link_verification(link->dc, reason); @@ -854,11 +856,11 @@ static bool should_verify_link_capability_destructively(struct dc_link *link, return destrictive; } -static void verify_link_capability(struct dc_link *link, +static void verify_link_capability(struct dc_link *link, struct dc_sink *sink, enum dc_detect_reason reason) { if (should_verify_link_capability_destructively(link, reason)) - verify_link_capability_destructive(link, reason); + verify_link_capability_destructive(link, sink, reason); else verify_link_capability_non_destructive(link); } @@ -1452,9 +1454,8 @@ bool link_detect(struct dc_link *link, enum dc_detect_reason reason) is_local_sink_detect_success = detect_link_and_local_sink(link, reason); - if (is_local_sink_detect_success && link->local_sink) { - verify_link_capability(link, reason); - } + if (is_local_sink_detect_success && link->local_sink) + verify_link_capability(link, link->local_sink, reason); DC_LOG_DC("%s: link_index=%d is_local_sink_detect_success=%d pre_link_type=%d link_type=%d\n", __func__, link->link_index, is_local_sink_detect_success, pre_link_type, link->type); diff --git a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c index e12c25896364a..b4f46408a0005 100644 --- a/drivers/gpu/drm/amd/display/dc/link/link_dpms.c +++ b/drivers/gpu/drm/amd/display/dc/link/link_dpms.c @@ -181,8 +181,7 @@ void link_set_all_streams_dpms_off_for_link(struct dc_link *link) /* link can be also enabled by vbios. In this case it is not recorded * in pipe_ctx. Disable link phy here to make sure it is completely off */ - if (dc_is_dp_signal(link->connector_signal)) - dp_disable_link_phy(link, &link_res, link->connector_signal); + dp_disable_link_phy(link, &link_res, link->connector_signal); } void link_resume(struct dc_link *link) diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c index 55a11d61a2aaa..4920bc136282f 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn31/dcn31_resource.c @@ -1963,8 +1963,6 @@ static bool dcn31_resource_construct( dc->config.use_pipe_ctx_sync_logic = true; dc->config.disable_hbr_audio_dp2 = true; - dc->config.no_native422_support = true; - /* read VBIOS LTTPR caps */ { if (ctx->dc_bios->funcs->get_lttpr_caps) { diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c index d69c18872b53a..d9818bc2dfdb6 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn315/dcn315_resource.c @@ -1926,8 +1926,6 @@ static bool dcn315_resource_construct( dc->caps.color.mpc.ogam_rom_caps.hlg = 0; dc->caps.color.mpc.ocsc = 1; - dc->config.no_native422_support = true; - /* read VBIOS LTTPR caps */ { if (ctx->dc_bios->funcs->get_lttpr_caps) {