From: Aurabindo Pillai <aurabindo.pillai@amd.com>
To: <amd-gfx@lists.freedesktop.org>
Cc: aurabindo.pillai@amd.com
Subject: [PATCH] drm/amd/display: Increase stutter watermark for dcn302 and dcn303
Date: Wed, 16 Jun 2021 10:47:02 -0400 [thread overview]
Message-ID: <20210616144702.56505-1-aurabindo.pillai@amd.com> (raw)
[Why]
Current watermarks end up programming lowers watermarks which
results in screen flickering and underflow for certain modes like 1440p.
[How]
Add 11us to stutter exit & stutter enter plus exit watermark.
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
---
drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c | 4 ++--
drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
index b16d19a25d88..628b227f0a13 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn302/dcn302_resource.c
@@ -164,8 +164,8 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_02_soc = {
.min_dcfclk = 500.0, /* TODO: set this to actual min DCFCLK */
.num_states = 1,
- .sr_exit_time_us = 15.5,
- .sr_enter_plus_exit_time_us = 20,
+ .sr_exit_time_us = 26.5,
+ .sr_enter_plus_exit_time_us = 31,
.urgent_latency_us = 4.0,
.urgent_latency_pixel_data_only_us = 4.0,
.urgent_latency_pixel_mixed_with_vm_data_us = 4.0,
diff --git a/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c b/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
index 758f89ba0192..88b609c32b0a 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn303/dcn303_resource.c
@@ -146,8 +146,8 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_03_soc = {
.min_dcfclk = 500.0, /* TODO: set this to actual min DCFCLK */
.num_states = 1,
- .sr_exit_time_us = 15.5,
- .sr_enter_plus_exit_time_us = 20,
+ .sr_exit_time_us = 26.5,
+ .sr_enter_plus_exit_time_us = 31,
.urgent_latency_us = 4.0,
.urgent_latency_pixel_data_only_us = 4.0,
.urgent_latency_pixel_mixed_with_vm_data_us = 4.0,
--
2.32.0
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next reply other threads:[~2021-06-16 14:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-16 14:47 Aurabindo Pillai [this message]
2021-06-16 18:00 ` [PATCH] drm/amd/display: Increase stutter watermark for dcn302 and dcn303 Rodrigo Siqueira
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