Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 47 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/i915_active_types.h b/drivers/gpu/drm/i915/i915_active_types.h
new file mode 100644
index 0000000000..b02a78ac87
--- /dev/null
+++ b/drivers/gpu/drm/i915/i915_active_types.h
@@ -0,0 +1,47 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef _I915_ACTIVE_TYPES_H_
+#define _I915_ACTIVE_TYPES_H_
+
+#include <linux/atomic.h>
+#include <linux/dma-fence.h>
+#include <linux/llist.h>
+#include <linux/mutex.h>
+#include <linux/rbtree.h>
+#include <linux/rcupdate.h>
+#include <linux/workqueue.h>
+
+struct i915_active_fence {
+	struct dma_fence __rcu *fence;
+	struct dma_fence_cb cb;
+};
+
+struct active_node;
+
+struct i915_active {
+	atomic_t count;
+	struct mutex mutex;
+
+	spinlock_t tree_lock;
+	struct active_node *cache;
+	struct rb_root tree;
+
+	/* Preallocated "exclusive" node */
+	struct i915_active_fence excl;
+
+	unsigned long flags;
+#define I915_ACTIVE_RETIRE_SLEEPS BIT(0)
+
+	int (*active)(struct i915_active *ref);
+	void (*retire)(struct i915_active *ref);
+
+	struct work_struct work;
+
+	struct llist_head preallocated_barriers;
+};
+
+#endif /* _I915_ACTIVE_TYPES_H_ */