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authorMarek Olšák <maraeo@gmail.com>2012-08-09 18:34:17 +0400
committerAlex Deucher <alexander.deucher@amd.com>2012-08-13 18:50:56 +0400
commit6759a0a7a0496dbbd4fb062c6a76d61c55d0fbd9 (patch)
treee16a78229435a2277d11f55ad8dd07780ce7499c /drivers/gpu/drm/radeon/radeon_device.c
parentb51ad12a36234c1f6707c9c54a414cfca23f3cdb (diff)
downloadlinux-6759a0a7a0496dbbd4fb062c6a76d61c55d0fbd9.tar.xz
drm/radeon/kms: implement timestamp userspace query (v2)
Returns a snapshot of the GPU clock counter. Needed for certain OpenGL extensions. v2: agd5f - address Jerome's comments - add function documentation Signed-off-by: Marek Olšák <maraeo@gmail.com> Reviewed-by: Jerome Glisse <jglisse@redhat.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_device.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_device.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 742af8244e89..d2e243867ac6 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1009,6 +1009,7 @@ int radeon_device_init(struct radeon_device *rdev,
atomic_set(&rdev->ih.lock, 0);
mutex_init(&rdev->gem.mutex);
mutex_init(&rdev->pm.mutex);
+ mutex_init(&rdev->gpu_clock_mutex);
init_rwsem(&rdev->pm.mclk_lock);
init_rwsem(&rdev->exclusive_lock);
init_waitqueue_head(&rdev->irq.vblank_queue);