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venus: add chain lock helpers for async present

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The helpers will protect chain access during async present.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39283>
This commit is contained in:
Yiwei Zhang 2026-01-11 23:52:14 -08:00 • committed by Marge Bot
parent 0a2525491d
commit 2c63534896
1 changed files with 36 additions and 0 deletions
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36
src/virtio/vulkan/vn_wsi.c
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@ -83,6 +83,42 @@ vn_wsi_chain_lookup(struct vn_device *dev, VkSwapchainKHR swapchain)
return chain;
}
static void
vn_wsi_chains_lock(struct vn_device *dev,
const VkPresentInfoKHR *pi,
bool all)
{
for (uint32_t i = 0; i < pi->swapchainCount; i++) {
struct vn_swapchain *chain =
vn_wsi_chain_lookup(dev, pi->pSwapchains[i]);
assert(chain);
if (all)
simple_mtx_lock(&chain->mutex);
simple_mtx_lock(&chain->acquire_mutex);
}
}
static void
vn_wsi_chains_unlock(struct vn_device *dev,
const VkPresentInfoKHR *pi,
bool all)
{
for (uint32_t i = 0; i < pi->swapchainCount; i++) {
struct vn_swapchain *chain =
vn_wsi_chain_lookup(dev, pi->pSwapchains[i]);
assert(chain);
simple_mtx_unlock(&chain->acquire_mutex);
if (all)
simple_mtx_unlock(&chain->mutex);
}
}
static VKAPI_ATTR PFN_vkVoidFunction VKAPI_CALL
vn_wsi_proc_addr(VkPhysicalDevice physicalDevice, const char *pName)
{