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lavapipe: reference gallium fences correctly.

Browse source 
Make sure to take references in all the correct places to get
right lifetimes for these objects and avoid leaks.

Fixes: 94a4982805 ("lavapipe: implement timeline semaphores")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15046>
(cherry picked from commit b805d3e6ab)
This commit is contained in:
Dave Airlie 2022-02-08 16:33:38 +10:00 • committed by Dylan Baker
parent 29822cf29a
commit f2a263bb12
2 changed files with 13 additions and 10 deletions
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2
.pick_status.json
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@ -4252,7 +4252,7 @@
"description": "lavapipe: reference gallium fences correctly.",
"nominated": true,
"nomination_type": 1,
"resolution": 0,
"resolution": 1,
"main_sha": null,
"because_sha": "94a4982805164f87ec5ad7cb22251315c0577d71"
},

21
src/gallium/frontends/lavapipe/lvp_device.c
View file

@ -1186,11 +1186,13 @@ thread_flush(struct lvp_device *device, struct lvp_fence *fence, uint64_t timeli
struct pipe_fence_handle *handle = NULL;
device->queue.ctx->flush(device->queue.ctx, &handle, 0);
if (fence)
fence->handle = handle;
device->pscreen->fence_reference(device->pscreen, &fence->handle, handle);
set_last_fence(device, handle, timeline);
/* this is the array of signaling timeline semaphore links */
for (unsigned i = 0; i < num_timelines; i++)
timelines[i]->fence = handle;
device->pscreen->fence_reference(device->pscreen, &timelines[i]->fence, handle);
device->pscreen->fence_reference(device->pscreen, &handle, NULL);
}
/* get a new timeline link for creating a new signal event
@ -1222,7 +1224,8 @@ get_semaphore_link(struct lvp_semaphore *sema)
* sema->lock MUST be locked before calling
*/
static void
prune_semaphore_links(struct lvp_semaphore *sema, uint64_t timeline)
prune_semaphore_links(struct lvp_device *device,
struct lvp_semaphore *sema, uint64_t timeline)
{
if (!timeline)
/* zero isn't a valid id to prune with */
@ -1237,7 +1240,7 @@ prune_semaphore_links(struct lvp_semaphore *sema, uint64_t timeline)
util_dynarray_append(&sema->links, struct lvp_semaphore_timeline*, tl);
tl = tl->next;
cur->next = NULL;
cur->fence = NULL;
device->pscreen->fence_reference(device->pscreen, &cur->fence, NULL);
}
/* this is now the current timeline link */
sema->timeline = tl;
@ -1300,7 +1303,7 @@ static VkResult wait_semaphores(struct lvp_device *device,
/* no timeline link was available yet: try to find one */
simple_mtx_lock(&sema->lock);
/* always prune first to update current timeline id */
prune_semaphore_links(sema, device->queue.last_finished);
prune_semaphore_links(device, sema, device->queue.last_finished);
tl_array[i].tl = find_semaphore_timeline(sema, waitval);
if (timeout && !tl_array[i].tl) {
/* still no timeline link available:
@ -1552,7 +1555,7 @@ VKAPI_ATTR VkResult VKAPI_CALL lvp_QueueSubmit(
}
simple_mtx_lock(&sema->lock);
/* always prune first to make links available and update timeline id */
prune_semaphore_links(sema, queue->last_finished);
prune_semaphore_links(queue->device, sema, queue->last_finished);
if (sema->current < info->pSignalSemaphoreValues[j]) {
/* only signal semaphores if the new id is >= the current one */
struct lvp_semaphore_timeline *tl = get_semaphore_link(sema);
@ -1574,7 +1577,7 @@ VKAPI_ATTR VkResult VKAPI_CALL lvp_QueueSubmit(
}
simple_mtx_lock(&sema->lock);
/* always prune first to update timeline id */
prune_semaphore_links(sema, queue->last_finished);
prune_semaphore_links(queue->device, sema, queue->last_finished);
if (info->pWaitSemaphoreValues[j] &&
pSubmits[i].pWaitDstStageMask && pSubmits[i].pWaitDstStageMask[j] &&
sema->current < info->pWaitSemaphoreValues[j]) {
@ -2329,7 +2332,7 @@ VKAPI_ATTR VkResult VKAPI_CALL lvp_GetSemaphoreCounterValue(
LVP_FROM_HANDLE(lvp_device, device, _device);
LVP_FROM_HANDLE(lvp_semaphore, sema, _semaphore);
simple_mtx_lock(&sema->lock);
prune_semaphore_links(sema, device->queue.last_finished);
prune_semaphore_links(device, sema, device->queue.last_finished);
*pValue = sema->current;
simple_mtx_unlock(&sema->lock);
return VK_SUCCESS;
@ -2347,7 +2350,7 @@ VKAPI_ATTR VkResult VKAPI_CALL lvp_SignalSemaphore(
sema->current = pSignalInfo->value;
cnd_broadcast(&sema->submit);
simple_mtx_lock(&sema->lock);
prune_semaphore_links(sema, device->queue.last_finished);
prune_semaphore_links(device, sema, device->queue.last_finished);
simple_mtx_unlock(&sema->lock);
return VK_SUCCESS;
}