diff options
| author | Dave Gordon <david.s.gordon@intel.com> | 2015-09-25 15:59:38 +0100 |
|---|---|---|
| committer | John Harrison <John.C.Harrison@Intel.com> | 2016-06-28 17:19:10 +0100 |
| commit | 27f326a40ca1803756ca18e65baebcc76ce75edc (patch) | |
| tree | 47f05a7cfc2a31fae94ab56feb635fe5221b16b8 | |
| parent | 695290f64d9b46778a79b366d6ad80830288d80e (diff) | |
drm/i915: recalculate ring space after reset
To reinitialise a ringbuffer after a hang (or preemption), we need to not
only to not only set both h/w and s/w HEAD and TAIL to 0, but also clear
last_retired_head and recalculate the available space.
For: VIZ-2021
Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
| -rw-r--r-- | drivers/gpu/drm/i915/intel_lrc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index 3a4d3d427254..5f42e45bc015 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -2818,5 +2818,7 @@ void intel_lr_context_reset(struct drm_device *dev, ringbuf->head = 0; ringbuf->tail = 0; + ringbuf->last_retired_head = -1; + intel_ring_update_space(ringbuf); } } |