[PATCH 07/14] drm/amd/display: revert max lb use by default for n10

Solomon Chiu solomon.chiu at amd.com
Sat Mar 20 01:46:49 UTC 2021


From: Dmytro Laktyushkin <Dmytro.Laktyushkin at amd.com>

This is causing a pstate change underflow regression for
unknown reason

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin at amd.com>
Reviewed-by: Eric Bernstein <Eric.Bernstein at amd.com>
Acked-by: Solomon Chiu <solomon.chiu at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c | 2 --
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 --
 2 files changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
index 0b1000d782a8..f962b905e79e 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c
@@ -619,7 +619,6 @@ static const struct dc_debug_options debug_defaults_drv = {
 		.recovery_enabled = false, /*enable this by default after testing.*/
 		.max_downscale_src_width = 3840,
 		.underflow_assert_delay_us = 0xFFFFFFFF,
-		.use_max_lb = true
 };
 
 static const struct dc_debug_options debug_defaults_diags = {
@@ -631,7 +630,6 @@ static const struct dc_debug_options debug_defaults_diags = {
 		.disable_pplib_clock_request = true,
 		.disable_pplib_wm_range = true,
 		.underflow_assert_delay_us = 0xFFFFFFFF,
-		.use_max_lb = true
 };
 
 static void dcn10_dpp_destroy(struct dpp **dpp)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index b8acad7acd94..28a3b4185424 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -1075,7 +1075,6 @@ static const struct dc_debug_options debug_defaults_drv = {
 		.scl_reset_length10 = true,
 		.sanity_checks = false,
 		.underflow_assert_delay_us = 0xFFFFFFFF,
-		.use_max_lb = true
 };
 
 static const struct dc_debug_options debug_defaults_diags = {
@@ -1092,7 +1091,6 @@ static const struct dc_debug_options debug_defaults_diags = {
 		.scl_reset_length10 = true,
 		.underflow_assert_delay_us = 0xFFFFFFFF,
 		.enable_tri_buf = true,
-		.use_max_lb = true
 };
 
 void dcn20_dpp_destroy(struct dpp **dpp)
-- 
2.29.0



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