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drm/radeon: fix regression in dynpm due to multi-ring rework

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Not all asics have all rings, so make sure the ring is ready
before attempting to check it in the dynpm work handler.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=43367

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2012-06-14 15:54:57 -04:00 committed by Dave Airlie
parent f8fee8f5ac
commit 0ec0612a80
1 changed files with 7 additions and 3 deletions
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10
drivers/gpu/drm/radeon/radeon_pm.c
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@ -801,9 +801,13 @@ static void radeon_dynpm_idle_work_handler(struct work_struct *work)
int i;
for (i = 0; i < RADEON_NUM_RINGS; ++i) {
not_processed += radeon_fence_count_emitted(rdev, i);
if (not_processed >= 3)
break;
struct radeon_ring *ring = &rdev->ring[i];
if (ring->ready) {
not_processed += radeon_fence_count_emitted(rdev, i);
if (not_processed >= 3)
break;
}
}
if (not_processed >= 3) { /* should upclock */