CVS commit: src/sys/external/bsd/drm2/dist/drm

["Taylor R Campbell" <riastradh%netbsd.org@localhost>]

Module Name:    src
Committed By:   riastradh
Date:           Sun Dec 26 21:00:14 UTC 2021

Modified Files:
        src/sys/external/bsd/drm2/dist/drm: drm_vblank.c
        src/sys/external/bsd/drm2/dist/drm/amd/display/amdgpu_dm: amdgpu_dm.c
            amdgpu_dm_crc.c
        src/sys/external/bsd/drm2/dist/drm/nouveau/dispnv50:
            nouveau_dispnv50_disp.c

Log Message:
drm: Fix locking around accurate vblank counts.

- Make drm_crtc_accurate_vblank_count require the caller to hold the
  event lock, rather than take it internally.

- Fix locking around drm_crtc_accurate_vblank_count and related
  operations in amdgpu and nouveau interrupt handlers.

- Use drm_crtc_vblank_put_locked, not drm_crtc_vblank_put, when we
  already hold the event lock.

PR kern/56557


To generate a diff of this commit:
cvs rdiff -u -r1.15 -r1.16 src/sys/external/bsd/drm2/dist/drm/drm_vblank.c
cvs rdiff -u -r1.4 -r1.5 \
    src/sys/external/bsd/drm2/dist/drm/amd/display/amdgpu_dm/amdgpu_dm.c
cvs rdiff -u -r1.2 -r1.3 \
    src/sys/external/bsd/drm2/dist/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
cvs rdiff -u -r1.6 -r1.7 \
    src/sys/external/bsd/drm2/dist/drm/nouveau/dispnv50/nouveau_dispnv50_disp.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.