While we will check that the request is completed prior to being
retired, by placing an assert that the request is complete at the
entrypoint of the function we can more clearly document the function's
preconditions.

Signed-off-by: Chris Wilson <[email protected]>
---
 drivers/gpu/drm/i915/i915_gem_request.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_gem_request.c 
b/drivers/gpu/drm/i915/i915_gem_request.c
index 82904595eaae..bd7b21f70283 100644
--- a/drivers/gpu/drm/i915/i915_gem_request.c
+++ b/drivers/gpu/drm/i915/i915_gem_request.c
@@ -281,6 +281,8 @@ void i915_gem_request_retire_upto(struct 
drm_i915_gem_request *req)
        struct drm_i915_gem_request *tmp;
 
        lockdep_assert_held(&req->i915->drm.struct_mutex);
+       GEM_BUG_ON(!i915_gem_request_completed(req));
+
        if (list_empty(&req->link))
                return;
 
-- 
2.10.2

_______________________________________________
Intel-gfx mailing list
[email protected]
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

Reply via email to