* an emission time with seqnos for tracking how far ahead of the GPU we are.
*/
struct drm_i915_gem_request {
+ struct kref ref;
+
/** On Which ring this request was generated */
struct intel_engine_cs *ring;
struct list_head client_list;
};
+void i915_gem_request_free(struct kref *req_ref);
+
+static inline void
+i915_gem_request_reference(struct drm_i915_gem_request *req)
+{
+ kref_get(&req->ref);
+}
+
+static inline void
+i915_gem_request_unreference(struct drm_i915_gem_request *req)
+{
+ kref_put(&req->ref, i915_gem_request_free);
+}
+
+static inline void i915_gem_request_assign(struct drm_i915_gem_request **pdst,
+ struct drm_i915_gem_request *src)
+{
+ if (src)
+ i915_gem_request_reference(src);
+
+ if (*pdst)
+ i915_gem_request_unreference(*pdst);
+
+ *pdst = src;
+}
+
struct drm_i915_file_private {
struct drm_i915_private *dev_priv;
struct drm_file *file;