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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Cc: Charlene Liu <charlene.liu@amd.com>,
	Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>,
	Wayne Lin <wayne.lin@amd.com>,
	Daniel Wheeler <daniel.wheeler@amd.com>,
	Alex Deucher <alexander.deucher@amd.com>,
	Sasha Levin <sashal@kernel.org>,
	harry.wentland@amd.com,
	sunpeng.li@amd.com,
	Rodrigo.Siqueira@amd.com,
	christian.koenig@amd.com,
	Xinhui.Pan@amd.com,
	airlied@gmail.com,
	daniel@ffwll.ch,
	felipe.clark@amd.com,
	alvin.lee2@amd.com,
	tony.tascioglu@amd.com,
	mario.limonciello@amd.com,
	sunran001@208suo.com,
	drv@mailo.com,
	amd-gfx@lists.freedesktop.org,
	dri-devel@lists.freedesktop.org
Subject: [PATCH AUTOSEL 6.1 20/24] drm/amd/display: get dprefclk ss info from integration info table
Date: Mon, 25 Dec 2023 19:22:13 -0500
Message-ID: <20231226002255.5730-20-sashal@kernel.org>
In-Reply-To: <20231226002255.5730-1-sashal@kernel.org>
References: <20231226002255.5730-1-sashal@kernel.org>
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From: Charlene Liu <charlene.liu@amd.com>

[ Upstream commit 51e7b64690776a9981355428b537af9048308a95 ]

[why & how]
we have two SSC_En:
we get ssc_info from dce_info for MPLL_SSC_EN.
we used to call VBIOS cmdtbl's smu_info's SS persentage for DPRECLK SS info,
is used for DP AUDIO and VBIOS' smu_info table was from systemIntegrationInfoTable.

since dcn35 VBIOS removed smu_info, driver need to use integrationInfotable directly.

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../drm/amd/display/dc/bios/bios_parser2.c    | 19 ++++++++++++++-----
 .../display/include/grph_object_ctrl_defs.h   |  2 ++
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
index e507d2e1410b7..93e40e0a15087 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
@@ -1018,13 +1018,20 @@ static enum bp_result get_ss_info_v4_5(
 		DC_LOG_BIOS("AS_SIGNAL_TYPE_HDMI ss_percentage: %d\n", ss_info->spread_spectrum_percentage);
 		break;
 	case AS_SIGNAL_TYPE_DISPLAY_PORT:
-		ss_info->spread_spectrum_percentage =
+		if (bp->base.integrated_info) {
+			DC_LOG_BIOS("gpuclk_ss_percentage (unit of 0.001 percent): %d\n", bp->base.integrated_info->gpuclk_ss_percentage);
+			ss_info->spread_spectrum_percentage =
+					bp->base.integrated_info->gpuclk_ss_percentage;
+			ss_info->type.CENTER_MODE =
+					bp->base.integrated_info->gpuclk_ss_type;
+		} else {
+			ss_info->spread_spectrum_percentage =
 				disp_cntl_tbl->dp_ss_percentage;
-		ss_info->spread_spectrum_range =
+			ss_info->spread_spectrum_range =
 				disp_cntl_tbl->dp_ss_rate_10hz * 10;
-		if (disp_cntl_tbl->dp_ss_mode & ATOM_SS_CENTRE_SPREAD_MODE)
-			ss_info->type.CENTER_MODE = true;
-
+			if (disp_cntl_tbl->dp_ss_mode & ATOM_SS_CENTRE_SPREAD_MODE)
+				ss_info->type.CENTER_MODE = true;
+		}
 		DC_LOG_BIOS("AS_SIGNAL_TYPE_DISPLAY_PORT ss_percentage: %d\n", ss_info->spread_spectrum_percentage);
 		break;
 	case AS_SIGNAL_TYPE_GPU_PLL:
@@ -2830,6 +2837,8 @@ static enum bp_result get_integrated_info_v2_2(
 	info->ma_channel_number = info_v2_2->umachannelnumber;
 	info->dp_ss_control =
 		le16_to_cpu(info_v2_2->reserved1);
+	info->gpuclk_ss_percentage = info_v2_2->gpuclk_ss_percentage;
+	info->gpuclk_ss_type = info_v2_2->gpuclk_ss_type;
 
 	for (i = 0; i < NUMBER_OF_UCHAR_FOR_GUID; ++i) {
 		info->ext_disp_conn_info.gu_id[i] =
diff --git a/drivers/gpu/drm/amd/display/include/grph_object_ctrl_defs.h b/drivers/gpu/drm/amd/display/include/grph_object_ctrl_defs.h
index bc96d02113608..813463ffe15c5 100644
--- a/drivers/gpu/drm/amd/display/include/grph_object_ctrl_defs.h
+++ b/drivers/gpu/drm/amd/display/include/grph_object_ctrl_defs.h
@@ -417,6 +417,8 @@ struct integrated_info {
 	/* V2.1 */
 	struct edp_info edp1_info;
 	struct edp_info edp2_info;
+	uint32_t gpuclk_ss_percentage;
+	uint32_t gpuclk_ss_type;
 };
 
 /*
-- 
2.43.0