From 7f8ca5b1c76b9bf593de72d7b2e27f935293ca7e Mon Sep 17 00:00:00 2001
From: George Shen <george.shen@amd.com>
Date: Thu, 1 Sep 2022 15:03:50 -0400
Subject: drm/amd/display: Fix urgent latency override for DCN32/DCN321
Git-commit: e7f2f4cd67443ce308480ca461806fcc3456e0ba
Patch-mainline: v6.1-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
[Why]
The urgent latency override is useful when debugging issues
relating to underflow.
Current overridden variable is not correct and has no effect
on DCN3.2 and DCN3.21 DML calculations.
[How]
For DCN3.2 and DCN3.21, override the correct urgent latency
variable when bounding box override is present.
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Reviewed-by: Nevenko Stupar <Nevenko.Stupar@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 1 +
drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index 1803a2ee93e8..19c92efdc302 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -2280,6 +2280,7 @@ void dcn32_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_pa
if ((int)(dcn3_2_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns
&& dc->bb_overrides.urgent_latency_ns) {
dcn3_2_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
+ dcn3_2_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
}
if ((int)(dcn3_2_soc.dram_clock_change_latency_us * 1000)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
index 7ebf25e87933..dd90f241e906 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn321/dcn321_fpu.c
@@ -489,6 +489,7 @@ void dcn321_update_bw_bounding_box_fpu(struct dc *dc, struct clk_bw_params *bw_p
if ((int)(dcn3_21_soc.urgent_latency_us * 1000) != dc->bb_overrides.urgent_latency_ns
&& dc->bb_overrides.urgent_latency_ns) {
dcn3_21_soc.urgent_latency_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
+ dcn3_21_soc.urgent_latency_pixel_data_only_us = dc->bb_overrides.urgent_latency_ns / 1000.0;
}
if ((int)(dcn3_21_soc.dram_clock_change_latency_us * 1000)
--
2.38.1