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| author | Tom Chung <chiahsuan.chung@amd.com> | 2025-07-18 18:25:08 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-28 16:34:37 +0200 |
| commit | f8db9f79d689ea0008934b3e5d82643336bcfcc8 (patch) | |
| tree | d5600ee30f4b974c4f56ad2a3207f4b76a515ef0 /rust/kernel/alloc/layout.rs | |
| parent | c8365bbd54c7d378d1355ea4837966cfaa579b19 (diff) | |
drm/amd/display: Fix Xorg desktop unresponsive on Replay panel
commit 66af73a1c319336694a8610fe4c2943f7b33066c upstream.
[WHY & HOW]
IPS & self-fresh feature can cause vblank counter resets between
vblank disable and enable.
It may cause system stuck due to wait the vblank counter.
Call the drm_crtc_vblank_restore() during vblank enable to estimate
missed vblanks by using timestamps and update the vblank counter in
DRM.
It can make the vblank counter increase smoothly and resolve this issue.
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Sun peng (Leo) Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 34d66bc7ff10e146a4cec76cf286979740a10954)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'rust/kernel/alloc/layout.rs')
0 files changed, 0 insertions, 0 deletions