}
/**
- * amdgpu_fence_schedule_fallback - schedule fallback check
- *
- * @ring: pointer to struct amdgpu_ring
- *
- * Start a timer as fallback to our interrupts.
- */
-static void amdgpu_fence_schedule_fallback(struct amdgpu_ring *ring)
-{
- mod_timer(&ring->fence_drv.fallback_timer,
- jiffies + AMDGPU_FENCE_JIFFIES_TIMEOUT);
-}
-
-/**
* amdgpu_fence_process - check for fence activity
*
* @ring: pointer to struct amdgpu_ring
} while (atomic_cmpxchg(&drv->last_seq, last_seq, seq) != last_seq);
- if (seq != ring->fence_drv.sync_seq)
- amdgpu_fence_schedule_fallback(ring);
-
if (unlikely(seq == last_seq))
return;
}
/**
- * amdgpu_fence_fallback - fallback for hardware interrupts
- *
- * @work: delayed work item
- *
- * Checks for fence activity.
- */
-static void amdgpu_fence_fallback(struct timer_list *t)
-{
- struct amdgpu_ring *ring = from_timer(ring, t,
- fence_drv.fallback_timer);
-
- amdgpu_fence_process(ring);
-}
-
-/**
* amdgpu_fence_wait_empty - wait for all fences to signal
*
* @adev: amdgpu device pointer
atomic_set(&ring->fence_drv.last_seq, 0);
ring->fence_drv.initialized = false;
- timer_setup(&ring->fence_drv.fallback_timer, amdgpu_fence_fallback, 0);
-
ring->fence_drv.num_fences_mask = num_hw_submission * 2 - 1;
spin_lock_init(&ring->fence_drv.lock);
ring->fence_drv.fences = kcalloc(num_hw_submission * 2, sizeof(void *),
amdgpu_irq_put(adev, ring->fence_drv.irq_src,
ring->fence_drv.irq_type);
drm_sched_fini(&ring->sched);
- del_timer_sync(&ring->fence_drv.fallback_timer);
for (j = 0; j <= ring->fence_drv.num_fences_mask; ++j)
dma_fence_put(ring->fence_drv.fences[j]);
kfree(ring->fence_drv.fences);
}
/**
- * amdgpu_fence_enable_signaling - enable signalling on fence
- * @fence: fence
- *
- * This function is called with fence_queue lock held, and adds a callback
- * to fence_queue that checks if this fence is signaled, and if so it
- * signals the fence and removes itself.
- */
-static bool amdgpu_fence_enable_signaling(struct dma_fence *f)
-{
- struct amdgpu_fence *fence = to_amdgpu_fence(f);
- struct amdgpu_ring *ring = fence->ring;
-
- if (!timer_pending(&ring->fence_drv.fallback_timer))
- amdgpu_fence_schedule_fallback(ring);
-
- DMA_FENCE_TRACE(&fence->base, "armed on ring %i!\n", ring->idx);
-
- return true;
-}
-
-/**
* amdgpu_fence_free - free up the fence memory
*
* @rcu: RCU callback head
static const struct dma_fence_ops amdgpu_fence_ops = {
.get_driver_name = amdgpu_fence_get_driver_name,
.get_timeline_name = amdgpu_fence_get_timeline_name,
- .enable_signaling = amdgpu_fence_enable_signaling,
.release = amdgpu_fence_release,
};