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radeon: Stop the ttm workqueue while reclocking

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The ttm bo workqueue may touch objects while we're reclocking, so make
sure it's blocked until we're done.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Matthew Garrett 2010-04-26 16:02:26 -04:00 committed by Dave Airlie
parent 7c5ee5366f
commit d9932a3241
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/radeon/radeon_pm.c
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@ -460,9 +460,11 @@ bool radeon_pm_debug_check_in_vbl(struct radeon_device *rdev, bool finish)
static void radeon_pm_idle_work_handler(struct work_struct *work)
{
struct radeon_device *rdev;
int resched;
rdev = container_of(work, struct radeon_device,
pm.idle_work.work);
resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);
mutex_lock(&rdev->ddev->struct_mutex);
mutex_lock(&rdev->pm.mutex);
if (rdev->pm.state == PM_STATE_ACTIVE) {
@ -509,6 +511,7 @@ static void radeon_pm_idle_work_handler(struct work_struct *work)
}
mutex_unlock(&rdev->pm.mutex);
mutex_unlock(&rdev->ddev->struct_mutex);
ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched);
queue_delayed_work(rdev->wq, &rdev->pm.idle_work,
msecs_to_jiffies(RADEON_IDLE_LOOP_MS));