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dma-buf: add more reservation object locking wrappers

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Complete the abstraction of the ww_mutex inside the reservation object.

This allows us to add more handling and debugging to the reservation
object in the future.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/320761/
This commit is contained in:
Christian König
2019-07-31 09:41:50 +02:00
parent 05103ea9a3
commit 0dbd555a01
16 changed files with 100 additions and 40 deletions
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6
drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
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@@ -402,14 +402,14 @@ void vmw_resource_unreserve(struct vmw_resource *res,
if (switch_backup && new_backup != res->backup) {
if (res->backup) {
lockdep_assert_held(&res->backup->base.resv->lock.base);
reservation_object_assert_held(res->backup->base.resv);
list_del_init(&res->mob_head);
vmw_bo_unreference(&res->backup);
}
if (new_backup) {
res->backup = vmw_bo_reference(new_backup);
lockdep_assert_held(&new_backup->base.resv->lock.base);
reservation_object_assert_held(new_backup->base.resv);
list_add_tail(&res->mob_head, &new_backup->res_list);
} else {
res->backup = NULL;
@@ -691,7 +691,7 @@ void vmw_resource_unbind_list(struct vmw_buffer_object *vbo)
.num_shared = 0
};
lockdep_assert_held(&vbo->base.resv->lock.base);
reservation_object_assert_held(vbo->base.resv);
list_for_each_entry_safe(res, next, &vbo->res_list, mob_head) {
if (!res->func->unbind)
continue;