linux-kernel - [PATCH AUTOSEL 6.7 17/88] drm/amd/display: initialize all the dpm level's stutter latency

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Date: Mon, 22 Jan 2024 09:50:50 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Charlene Liu <charlene.liu@....com>,
	Daniel Wheeler <daniel.wheeler@....com>,
	Syed Hassan <syed.hassan@....com>,
	Allen Pan <allen.pan@....com>,
	Rodrigo Siqueira <rodrigo.siqueira@....com>,
	Alex Deucher <alexander.deucher@....com>,
	Sasha Levin <sashal@...nel.org>,
	harry.wentland@....com,
	sunpeng.li@....com,
	Rodrigo.Siqueira@....com,
	christian.koenig@....com,
	Xinhui.Pan@....com,
	airlied@...il.com,
	daniel@...ll.ch,
	hamza.mahfooz@....com,
	nicholas.kazlauskas@....com,
	roman.li@....com,
	sungkim@....com,
	Qingqing.Zhuo@....com,
	jerry.zuo@....com,
	dillon.varone@....com,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.7 17/88] drm/amd/display: initialize all the dpm level's stutter latency

From: Charlene Liu <charlene.liu@....com>

[ Upstream commit 885c71ad791c1709f668a37f701d33e6872a902f ]

Fix issue when override level bigger than default. Levels 5, 6, and 7
had zero stutter latency, this is because override level being
initialized after stutter latency inits.

Tested-by: Daniel Wheeler <daniel.wheeler@....com>
Reviewed-by: Syed Hassan <syed.hassan@....com>
Reviewed-by: Allen Pan <allen.pan@....com>
Acked-by: Rodrigo Siqueira <rodrigo.siqueira@....com>
Signed-off-by: Charlene Liu <charlene.liu@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c b/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
index db06a5b749b4..279e7605a0a2 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml2_translation_helper.c
@@ -341,6 +341,9 @@ void dml2_init_soc_states(struct dml2_context *dml2, const struct dc *in_dc,
 		break;
 	}
 
+	if (dml2->config.bbox_overrides.clks_table.num_states)
+			p->in_states->num_states = dml2->config.bbox_overrides.clks_table.num_states;
+
 	/* Override from passed values, if available */
 	for (i = 0; i < p->in_states->num_states; i++) {
 		if (dml2->config.bbox_overrides.sr_exit_latency_us) {
@@ -397,7 +400,6 @@ void dml2_init_soc_states(struct dml2_context *dml2, const struct dc *in_dc,
 	}
 	/* Copy clocks tables entries, if available */
 	if (dml2->config.bbox_overrides.clks_table.num_states) {
-		p->in_states->num_states = dml2->config.bbox_overrides.clks_table.num_states;
 
 		for (i = 0; i < dml2->config.bbox_overrides.clks_table.num_entries_per_clk.num_dcfclk_levels; i++) {
 			p->in_states->state_array[i].dcfclk_mhz = dml2->config.bbox_overrides.clks_table.clk_entries[i].dcfclk_mhz;
-- 
2.43.0