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path: root/drivers/gpu/drm/radeon/radeon_pm.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_pm.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_pm.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index aa14dbb..0bfa656 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -234,7 +234,7 @@ static void radeon_set_power_state(struct radeon_device *rdev)
static void radeon_pm_set_clocks(struct radeon_device *rdev)
{
- int i;
+ int i, r;
/* no need to take locks, etc. if nothing's going to change */
if ((rdev->pm.requested_clock_mode_index == rdev->pm.current_clock_mode_index) &&
@@ -248,8 +248,17 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
/* wait for the rings to drain */
for (i = 0; i < RADEON_NUM_RINGS; i++) {
struct radeon_ring *ring = &rdev->ring[i];
- if (ring->ready)
- radeon_fence_wait_empty_locked(rdev, i);
+ if (!ring->ready) {
+ continue;
+ }
+ r = radeon_fence_wait_empty_locked(rdev, i);
+ if (r) {
+ /* needs a GPU reset dont reset here */
+ mutex_unlock(&rdev->ring_lock);
+ up_write(&rdev->pm.mclk_lock);
+ mutex_unlock(&rdev->ddev->struct_mutex);
+ return;
+ }
}
radeon_unmap_vram_bos(rdev);
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