redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

drm/amd/pm: increase mclk switch threshold to 200 us 

commit 83da6eea3a upstream.

To avoid underflow seen on Polaris10 with some 3440x1440
144Hz displays. As the threshold of 190 us cuts too close
to minVBlankTime of 192 us.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Evan Quan 2020-09-02 16:10:10 +08:00 committed by Greg Kroah-Hartman
parent 071b3300c9
commit beb5d0dfc1
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
View File

@ -2864,7 +2864,7 @@ static int smu7_vblank_too_short(struct pp_hwmgr *hwmgr,
if (hwmgr->is_kicker)
switch_limit_us = data->is_memory_gddr5 ? 450 : 150;
else
switch_limit_us = data->is_memory_gddr5 ? 190 : 150;
switch_limit_us = data->is_memory_gddr5 ? 200 : 150;
break;
case CHIP_VEGAM:
switch_limit_us = 30;