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drm/i915: wait for rings to become idle once disabled

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make sure we wait for rings to become idle once they are
disabled. In case of timeout print an error message

Signed-off-by: Naresh Kumar Kachhi <naresh.kumar.kachhi@intel.com>
[danvet: Frob patch as suggested by Chris.]
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Naresh Kumar Kachhi
2014-03-12 16:39:41 +05:30
committed by Daniel Vetter
parent a51435a313
commit e9fea5747d
3 changed files with 6 additions and 0 deletions
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2
drivers/gpu/drm/i915/intel_ringbuffer.h
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@@ -33,6 +33,8 @@ struct intel_hw_status_page {
#define I915_READ_IMR(ring) I915_READ(RING_IMR((ring)->mmio_base))
#define I915_WRITE_IMR(ring, val) I915_WRITE(RING_IMR((ring)->mmio_base), val)
#define I915_READ_MODE(ring) I915_READ(RING_MI_MODE((ring)->mmio_base))
enum intel_ring_hangcheck_action {
HANGCHECK_IDLE = 0,
HANGCHECK_WAIT,