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tu/drm/virtio: Avoid freeing zombified tu_sparse_vma

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This is d3cedd2fa5 ("tu/drm: msm's has_set_iova codepath should avoid
freeing zombified tu_sparse_vma") but for virtio.

Fixes: 764b3d9161 ("tu: Implement transient attachments and lazily allocated memory")
Signed-off-by: Valentine Burley <valentine.burley@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40507>
This commit is contained in:
Valentine Burley 2026-03-19 11:16:20 +01:00 • committed by Marge Bot
parent 7a96bc3187
commit f1366ca144
1 changed files with 10 additions and 3 deletions
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13
src/freedreno/vulkan/tu_knl_drm_virtio.cc
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@ -753,6 +753,8 @@ virtio_bo_init(struct tu_device *dev,
}
*out_bo = bo;
if (lazy_vma)
lazy_vma->msm.backs_lazy_bo = true;
/* We don't use bo->name here because for the !TU_DEBUG=bo case bo->name is NULL. */
tu_bo_set_kernel_name(dev, bo, name);
@ -949,9 +951,14 @@ static void
virtio_sparse_vma_finish(struct tu_device *dev,
struct tu_sparse_vma *vma)
{
mtx_lock(&dev->vma_mutex);
util_vma_heap_free(&dev->vma, vma->msm.iova, vma->msm.size);
mtx_unlock(&dev->vma_mutex);
/* For has_set_iova, if a lazy BO was mapped into this sparse VMA
* the allocation will be handed off to the zombie VMA mechanism.
*/
if (!vma->msm.backs_lazy_bo) {
mtx_lock(&dev->vma_mutex);
util_vma_heap_free(&dev->vma, vma->msm.iova, vma->msm.size);
mtx_unlock(&dev->vma_mutex);
}
}
static VkResult