[v2,0/2] Stabilize use of vblank_refcount

Message

Paloma Arellano Dec. 1, 2023, 1:29 a.m. UTC

There is currently a race condition occuring when accessing
vblank_refcount. Therefore, vblank irq timeouts may occur.

Avoid any vblank irq timeouts by stablizing the use of vblank_refcount.

Changes from prior versions:
   v2: - Slightly changed wording of patch #2 commit message

Paloma Arellano (2):
  drm/msm/dpu: Modify vblank_refcount if error in callback
  drm/msm/dpu: Add mutex lock in control vblank irq

 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c          |  6 ++++++
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h     |  6 ++++++
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c | 11 +++++++++--
 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 11 +++++++++--
 4 files changed, 30 insertions(+), 4 deletions(-)