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PR/56557 CVS commit: src/sys/external/bsd/drm2/dist/drm

The following reply was made to PR kern/56557; it has been noted by GNATS.

From: "Taylor R Campbell" <>
Subject: PR/56557 CVS commit: src/sys/external/bsd/drm2/dist/drm
Date: Sun, 26 Dec 2021 21:00:14 +0000

 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
 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 \
 cvs rdiff -u -r1.2 -r1.3 \
 cvs rdiff -u -r1.6 -r1.7 \
 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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