From ceaf9f57195c458a94487965441926998fcadcfd Mon Sep 17 00:00:00 2001 From: Aurabindo Pillai Date: Wed, 16 Jun 2021 09:41:38 -0400 Subject: [PATCH] drm/amd/display: Increase stutter watermark for dcn302 and dcn303 [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 Reviewed-by: Jun Lei Acked-by: Rodrigo Siqueira Signed-off-by: Alex Deucher --- 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, -- 2.20.1