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anv/device: Add a helper for querying whether a BO is busy

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This is a bit more efficient than using GEM_WAIT with a timeout of 0.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Jason Ekstrand
2017-04-05 09:55:15 -07:00
parent d5157ddca4
commit f195d40eca
3 changed files with 47 additions and 6 deletions
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34
src/intel/vulkan/anv_device.c
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@@ -1327,6 +1327,31 @@ anv_device_query_status(struct anv_device *device)
return VK_SUCCESS;
}
VkResult
anv_device_bo_busy(struct anv_device *device, struct anv_bo *bo)
{
/* Note: This only returns whether or not the BO is in use by an i915 GPU.
* Other usages of the BO (such as on different hardware) will not be
* flagged as "busy" by this ioctl. Use with care.
*/
int ret = anv_gem_busy(device, bo->gem_handle);
if (ret == 1) {
return VK_NOT_READY;
} else if (ret == -1) {
/* We don't know the real error. */
device->lost = true;
return vk_errorf(VK_ERROR_DEVICE_LOST, "gem wait failed: %m");
}
/* Query for device status after the busy call. If the BO we're checking
* got caught in a GPU hang we don't want to return VK_SUCCESS to the
* client because it clearly doesn't have valid data. Yes, this most
* likely means an ioctl, but we just did an ioctl to query the busy status
* so it's no great loss.
*/
return anv_device_query_status(device);
}
VkResult
anv_device_wait(struct anv_device *device, struct anv_bo *bo,
int64_t timeout)
@@ -1906,14 +1931,11 @@ VkResult anv_GetFenceStatus(
return VK_SUCCESS;
case ANV_FENCE_STATE_SUBMITTED: {
VkResult result = anv_device_wait(device, &fence->bo, 0);
switch (result) {
case VK_SUCCESS:
VkResult result = anv_device_bo_busy(device, &fence->bo);
if (result == VK_SUCCESS) {
fence->state = ANV_FENCE_STATE_SIGNALED;
return VK_SUCCESS;
case VK_TIMEOUT:
return VK_NOT_READY;
default:
} else {
return result;
}
}