tree 1da6741149cc84fc05c3ad42571df363a035bacf
parent 524bdbf2025d44cdea672511d21012a52b427374
author Ben Skeggs <bskeggs@redhat.com> 1440046457 +1000
committer Ben Skeggs <bskeggs@redhat.com> 1440729635 +1000

drm/nouveau/mmu: protect each vm with its own mutex

An upcoming commit requires being able to modify the PRAMIN BAR page
tables while already holding the MMU subdev mutex.

To solve this issue, each VM has been given its own mutex.  As a nice
side-effect, this also allows separate VMs to be updated concurrently.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>