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drm/radeon: add userptr flag to register MMU notifier v3

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Whenever userspace mapping related to our userptr change
we wait for it to become idle and unmap it from GTT.

v2: rebased, fix mutex unlock in error path
v3: improve commit message

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2014-08-07 09:36:03 +02:00
committed by Alex Deucher
parent 2a84a4476d
commit 341cb9e426
8 changed files with 298 additions and 2 deletions
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2
drivers/gpu/drm/radeon/radeon_device.c
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@@ -1270,6 +1270,8 @@ int radeon_device_init(struct radeon_device *rdev,
init_rwsem(&rdev->pm.mclk_lock);
init_rwsem(&rdev->exclusive_lock);
init_waitqueue_head(&rdev->irq.vblank_queue);
mutex_init(&rdev->mn_lock);
hash_init(rdev->mn_hash);
r = radeon_gem_init(rdev);
if (r)
return r;