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 <aurabindo.pillai@amd.com>
Reviewed-by: Jun Lei <jun.lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 b16d19a..628b227 100644 (file)
--- 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 758f89b..88b609c 100644 (file)
--- 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,