diff options
| author | Alex Deucher <alexander.deucher@amd.com> | 2017-05-11 13:57:41 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-05-24 17:39:32 -0400 |
| commit | ae5037dcfeef6f90e0b352e05e45d89700cefa23 (patch) | |
| tree | 9466241f1f844e28b224e9b4a87d025c45c66669 /drivers/gpu/drm/amd | |
| parent | 14efcf11e96aa0346ccc0a931ad6f0a2d1dea828 (diff) | |
| download | linux-ae5037dcfeef6f90e0b352e05e45d89700cefa23.tar.gz linux-ae5037dcfeef6f90e0b352e05e45d89700cefa23.tar.xz | |
drm/amd/powerplay/smu7: disable mclk switching for high refresh rates
Even if the vblank period would allow it, it still seems to
be problematic on some cards.
bug: https://bugs.freedesktop.org/show_bug.cgi?id=96868
Cc: stable@vger.kernel.org
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c index 1445c51b6d05..102eb6d029fa 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c @@ -2793,7 +2793,8 @@ static int smu7_apply_state_adjust_rules(struct pp_hwmgr *hwmgr, disable_mclk_switching = ((1 < info.display_count) || disable_mclk_switching_for_frame_lock || - smu7_vblank_too_short(hwmgr, mode_info.vblank_time_us)); + smu7_vblank_too_short(hwmgr, mode_info.vblank_time_us) || + (mode_info.refresh_rate > 120)); sclk = smu7_ps->performance_levels[0].engine_clock; mclk = smu7_ps->performance_levels[0].memory_clock; |