diff options
| author |   oga <oga@openbsd.org> | 2008-11-04 00:22:12 +0000 |
|---|---|---|
| committer | oga <oga@openbsd.org> | 2008-11-04 00:22:12 +0000 |
| commit | 652713dba0de92e69ddf58767b99e29c7d27757d (patch) | |
| tree | 90ee2bdf23de333f676d1e0fcbc600cdc9fed2bf /sys/dev/pci/drm/i915_irq.c | |
| parent | revert the pageflipping and vblank sync code to the older style that (diff) | |
| download | wireguard-openbsd-652713dba0de92e69ddf58767b99e29c7d27757d.tar.xz wireguard-openbsd-652713dba0de92e69ddf58767b99e29c7d27757d.zip | |
Hold the drm lock around all things that touch the ringbuffer.
Not strictly needed in the non-gem case, but it will be needed then, and
doesn't hurt now.
From Eric Anholt at intel.
Diffstat (limited to 'sys/dev/pci/drm/i915_irq.c')
| -rw-r--r-- | sys/dev/pci/drm/i915_irq.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/pci/drm/i915_irq.c b/sys/dev/pci/drm/i915_irq.c index 4ad4824228a..d8e4c3a3921 100644 --- a/sys/dev/pci/drm/i915_irq.c +++ b/sys/dev/pci/drm/i915_irq.c @@ -504,7 +504,9 @@ int i915_irq_emit(struct drm_device *dev, void *data, return EINVAL; } + DRM_LOCK(); result = i915_emit_irq(dev); + DRM_UNLOCK(); if (DRM_COPY_TO_USER(emit->irq_seq, &result, sizeof(int))) { DRM_ERROR("copy_to_user\n"); |