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drm/radeon: Update IH_RB_RPTR register after each processed interrupt

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This might decrease the chance of IH ring buffer overflows.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Michel Dänzer
2014-09-19 12:22:10 +09:00
committed by Alex Deucher
parent 6cc2fda213
commit f55e03b975
4 changed files with 4 additions and 4 deletions
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2
drivers/gpu/drm/radeon/cik.c
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@@ -8251,6 +8251,7 @@ restart_ih:
/* wptr/rptr are in bytes! */
rptr += 16;
rptr &= rdev->ih.ptr_mask;
WREG32(IH_RB_RPTR, rptr);
}
if (queue_hotplug)
schedule_work(&rdev->hotplug_work);
@@ -8259,7 +8260,6 @@ restart_ih:
if (queue_thermal)
schedule_work(&rdev->pm.dpm.thermal.work);
rdev->ih.rptr = rptr;
WREG32(IH_RB_RPTR, rdev->ih.rptr);
atomic_set(&rdev->ih.lock, 0);
/* make sure wptr hasn't changed while processing */