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drm/i915: Keep refs on the object over the lifetime of vmas for GTT mmap.

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This fixes potential fault at fault time if the object was unreferenced
while the mapping still existed.  Now, while the mmap_offset only lives
for the lifetime of the object, the object also stays alive while a vma
exists that needs it.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Jesse Barnes
2009-02-11 14:01:46 -08:00
committed by Dave Airlie
parent 496818f08a
commit ab00b3e521
4 changed files with 57 additions and 18 deletions
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2
drivers/gpu/drm/i915/i915_drv.c
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@@ -94,6 +94,8 @@ static int i915_resume(struct drm_device *dev)
static struct vm_operations_struct i915_gem_vm_ops = {
.fault = i915_gem_fault,
.open = drm_gem_vm_open,
.close = drm_gem_vm_close,
};
static struct drm_driver driver = {