zink: add a resource reference for bufferviews

Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12843>

diff --git a/src/gallium/drivers/zink/zink_context.c b/src/gallium/drivers/zink/zink_context.c
index 86886c5..75556ad 100644 (file)
--- a/src/gallium/drivers/zink/zink_context.c
+++ b/src/gallium/drivers/zink/zink_context.c
@@ -636,6 +636,7 @@ get_buffer_view(struct zink_context *ctx, struct zink_resource *res, enum pipe_f
          goto out;
       }
       pipe_reference_init(&buffer_view->reference, 1);
+      pipe_resource_reference(&buffer_view->pres, &res->base.b);
       util_dynarray_init(&buffer_view->desc_set_refs.refs, NULL);
       buffer_view->bvci = bvci;
       buffer_view->buffer_view = view;
@@ -751,6 +752,7 @@ zink_destroy_buffer_view(struct zink_screen *screen, struct zink_buffer_view *bu
    assert(he);
    _mesa_hash_table_remove(&screen->bufferview_cache, he);
    simple_mtx_unlock(&screen->bufferview_mtx);
+   pipe_resource_reference(&buffer_view->pres, NULL);
    VKSCR(DestroyBufferView)(screen->dev, buffer_view->buffer_view, NULL);
    zink_descriptor_set_refs_clear(&buffer_view->desc_set_refs, buffer_view);
    FREE(buffer_view);

diff --git a/src/gallium/drivers/zink/zink_context.h b/src/gallium/drivers/zink/zink_context.h
index 6f61381..38cd9e8 100644 (file)
--- a/src/gallium/drivers/zink/zink_context.h
+++ b/src/gallium/drivers/zink/zink_context.h
@@ -80,6 +80,7 @@ struct zink_sampler_state {
 
 struct zink_buffer_view {
    struct pipe_reference reference;
+   struct pipe_resource *pres;
    VkBufferViewCreateInfo bvci;
    VkBufferView buffer_view;
    uint32_t hash;