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authorSergei Lopatin <magist3r@gmail.com>2019-06-26 12:56:59 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-04-21 10:03:10 +0300
commit9959d615b715972002ed1ec9961486ded26e2ef4 (patch)
tree96d303835f8224628e8df5c5bacb2d73290525a8 /drivers/gpu
parentc521b7001c2287ddcc192c5babb6264b4a66302c (diff)
downloadlinux-9959d615b715972002ed1ec9961486ded26e2ef4.tar.xz
drm/amd/powerplay: force the trim of the mclk dpm_levels if OD is enabled
commit 8c7f0a44b4b4ef16df8f44fbaee6d1f5d1593c83 upstream. Should prevent flicker if PP_OVERDRIVE_MASK is set. bug: https://bugs.freedesktop.org/show_bug.cgi?id=102646 bug: https://bugs.freedesktop.org/show_bug.cgi?id=108941 bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1088 bug: https://gitlab.freedesktop.org/drm/amd/-/issues/628 Signed-off-by: Sergei Lopatin <magist3r@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c5
1 files changed, 4 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 6bf032e81e39..219440bebd05 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -3788,9 +3788,12 @@ static int smu7_trim_single_dpm_states(struct pp_hwmgr *hwmgr,
{
uint32_t i;
+ /* force the trim if mclk_switching is disabled to prevent flicker */
+ bool force_trim = (low_limit == high_limit);
for (i = 0; i < dpm_table->count; i++) {
/*skip the trim if od is enabled*/
- if (!hwmgr->od_enabled && (dpm_table->dpm_levels[i].value < low_limit
+ if ((!hwmgr->od_enabled || force_trim)
+ && (dpm_table->dpm_levels[i].value < low_limit
|| dpm_table->dpm_levels[i].value > high_limit))
dpm_table->dpm_levels[i].enabled = false;
else