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authorLeo Chen <sancchen@amd.com>2023-04-13 17:34:24 -0400
committerAlex Deucher <alexander.deucher@amd.com>2023-05-03 23:10:02 -0400
commit8f586cc16c1fc3c2202c9d54563db8c7ed365f82 (patch)
tree991873637d870258391892faae8d9a9316dedd80
parent100bd00881f8553d0ccfc99a575966d990c455eb (diff)
drm/amd/display: Change default Z8 watermark values
[Why & How] Previous Z8 watermark values were causing flickering and OTC underflow. Updating Z8 watermark values based on the measurement. Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Acked-by: Alan Liu <HaoPing.Liu@amd.com> Signed-off-by: Leo Chen <sancchen@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
index 44082f65de1f..9e54e3d0eb78 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c
@@ -149,8 +149,8 @@ static struct _vcs_dpi_soc_bounding_box_st dcn3_14_soc = {
.num_states = 5,
.sr_exit_time_us = 16.5,
.sr_enter_plus_exit_time_us = 18.5,
- .sr_exit_z8_time_us = 210.0,
- .sr_enter_plus_exit_z8_time_us = 310.0,
+ .sr_exit_z8_time_us = 268.0,
+ .sr_enter_plus_exit_z8_time_us = 393.0,
.writeback_latency_us = 12.0,
.dram_channel_width_bytes = 4,
.round_trip_ping_latency_dcfclk_cycles = 106,