1/* SPDX-License-Identifier: MIT */
 2/*
 3 * Copyright © 2014-2018 Intel Corporation
 4 */
 5
 6#ifndef INTEL_GT_BUFFER_POOL_H
 7#define INTEL_GT_BUFFER_POOL_H
 8
 9#include <linux/types.h>
10
11#include "i915_active.h"
12#include "intel_gt_buffer_pool_types.h"
13
14struct intel_gt;
15struct i915_request;
16
17struct intel_gt_buffer_pool_node *
18intel_gt_get_buffer_pool(struct intel_gt *gt, size_t size,
19			 enum i915_map_type type);
20
21void intel_gt_buffer_pool_mark_used(struct intel_gt_buffer_pool_node *node);
22
23static inline int
24intel_gt_buffer_pool_mark_active(struct intel_gt_buffer_pool_node *node,
25				 struct i915_request *rq)
26{
27	/* did we call mark_used? */
28	GEM_WARN_ON(!node->pinned);
29
30	return i915_active_add_request(&node->active, rq);
31}
32
33static inline void
34intel_gt_buffer_pool_put(struct intel_gt_buffer_pool_node *node)
35{
36	i915_active_release(&node->active);
37}
38
39void intel_gt_init_buffer_pool(struct intel_gt *gt);
40void intel_gt_flush_buffer_pool(struct intel_gt *gt);
41void intel_gt_fini_buffer_pool(struct intel_gt *gt);
42
43#endif /* INTEL_GT_BUFFER_POOL_H */