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

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

Module Name:    src
Committed By:   riastradh
Date:           Thu Aug 23 01:10:04 UTC 2018

Modified Files:
        src/sys/external/bsd/drm2/dist/drm/nouveau: nouveau_fence.c
            nouveau_fence.h

Log Message:
Fences may last longer than their channels.

- Use a reference count on the nouveau_fence_chan object.
- Acquire it with kpreemption disabled.
- Use xcall to wait for kpreempt-disabled sections to complete.

PR kern/53441

XXX pullup-7
XXX pullup-8


To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 \
    src/sys/external/bsd/drm2/dist/drm/nouveau/nouveau_fence.c
cvs rdiff -u -r1.3 -r1.4 \
    src/sys/external/bsd/drm2/dist/drm/nouveau/nouveau_fence.h

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