drm/i915: extract __wait_seqno from i915_wait_request
i915_wait_request is actually a fairly large function encapsulating quite a few different operations. Because being able to wait on seqnos in various conditions is useful, extracting that bit of code to a helper function seems useful v2: pull the irq_get/put as well (Ben) Signed-off-by: Ben Widawsky <ben@bwidawsk.net> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>hifive-unleashed-5.1
parent
c58cf4f108
commit
604dd3ec75
|
@ -1819,6 +1819,36 @@ i915_gem_retire_work_handler(struct work_struct *work)
|
||||||
mutex_unlock(&dev->struct_mutex);
|
mutex_unlock(&dev->struct_mutex);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
static int __wait_seqno(struct intel_ring_buffer *ring, u32 seqno,
|
||||||
|
bool interruptible)
|
||||||
|
{
|
||||||
|
drm_i915_private_t *dev_priv = ring->dev->dev_private;
|
||||||
|
int ret = 0;
|
||||||
|
|
||||||
|
if (i915_seqno_passed(ring->get_seqno(ring), seqno))
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
trace_i915_gem_request_wait_begin(ring, seqno);
|
||||||
|
if (WARN_ON(!ring->irq_get(ring)))
|
||||||
|
return -ENODEV;
|
||||||
|
|
||||||
|
#define EXIT_COND \
|
||||||
|
(i915_seqno_passed(ring->get_seqno(ring), seqno) || \
|
||||||
|
atomic_read(&dev_priv->mm.wedged))
|
||||||
|
|
||||||
|
if (interruptible)
|
||||||
|
ret = wait_event_interruptible(ring->irq_queue,
|
||||||
|
EXIT_COND);
|
||||||
|
else
|
||||||
|
wait_event(ring->irq_queue, EXIT_COND);
|
||||||
|
|
||||||
|
ring->irq_put(ring);
|
||||||
|
trace_i915_gem_request_wait_end(ring, seqno);
|
||||||
|
#undef EXIT_COND
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Waits for a sequence number to be signaled, and cleans up the
|
* Waits for a sequence number to be signaled, and cleans up the
|
||||||
* request and object lists appropriately for that event.
|
* request and object lists appropriately for that event.
|
||||||
|
@ -1861,24 +1891,7 @@ i915_wait_request(struct intel_ring_buffer *ring,
|
||||||
seqno = request->seqno;
|
seqno = request->seqno;
|
||||||
}
|
}
|
||||||
|
|
||||||
if (!i915_seqno_passed(ring->get_seqno(ring), seqno)) {
|
ret = __wait_seqno(ring, seqno, dev_priv->mm.interruptible);
|
||||||
trace_i915_gem_request_wait_begin(ring, seqno);
|
|
||||||
|
|
||||||
if (WARN_ON(!ring->irq_get(ring)))
|
|
||||||
return -ENODEV;
|
|
||||||
|
|
||||||
if (dev_priv->mm.interruptible)
|
|
||||||
ret = wait_event_interruptible(ring->irq_queue,
|
|
||||||
i915_seqno_passed(ring->get_seqno(ring), seqno)
|
|
||||||
|| atomic_read(&dev_priv->mm.wedged));
|
|
||||||
else
|
|
||||||
wait_event(ring->irq_queue,
|
|
||||||
i915_seqno_passed(ring->get_seqno(ring), seqno)
|
|
||||||
|| atomic_read(&dev_priv->mm.wedged));
|
|
||||||
|
|
||||||
ring->irq_put(ring);
|
|
||||||
trace_i915_gem_request_wait_end(ring, seqno);
|
|
||||||
}
|
|
||||||
if (atomic_read(&dev_priv->mm.wedged))
|
if (atomic_read(&dev_priv->mm.wedged))
|
||||||
ret = -EAGAIN;
|
ret = -EAGAIN;
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue