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 
14 struct intel_gt;
15 struct i915_request;
16 
17 struct intel_gt_buffer_pool_node *
18 intel_gt_get_buffer_pool(struct intel_gt *gt, size_t size,
19 			 enum i915_map_type type);
20 
21 void intel_gt_buffer_pool_mark_used(struct intel_gt_buffer_pool_node *node);
22 
23 static inline int
24 intel_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 
33 static inline void
34 intel_gt_buffer_pool_put(struct intel_gt_buffer_pool_node *node)
35 {
36 	i915_active_release(&node->active);
37 }
38 
39 void intel_gt_init_buffer_pool(struct intel_gt *gt);
40 void intel_gt_flush_buffer_pool(struct intel_gt *gt);
41 void intel_gt_fini_buffer_pool(struct intel_gt *gt);
42 
43 #endif /* INTEL_GT_BUFFER_POOL_H */
44