1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Interconnect framework internal structs
4  *
5  * Copyright (c) 2019, Linaro Ltd.
6  * Author: Georgi Djakov <georgi.djakov@linaro.org>
7  */
8 
9 #ifndef __DRIVERS_INTERCONNECT_INTERNAL_H
10 #define __DRIVERS_INTERCONNECT_INTERNAL_H
11 
12 /**
13  * struct icc_req - constraints that are attached to each node
14  * @req_node: entry in list of requests for the particular @node
15  * @node: the interconnect node to which this constraint applies
16  * @dev: reference to the device that sets the constraints
17  * @tag: path tag (optional)
18  * @avg_bw: an integer describing the average bandwidth in kBps
19  * @peak_bw: an integer describing the peak bandwidth in kBps
20  */
21 struct icc_req {
22 	struct hlist_node req_node;
23 	struct icc_node *node;
24 	struct device *dev;
25 	u32 tag;
26 	u32 avg_bw;
27 	u32 peak_bw;
28 };
29 
30 /**
31  * struct icc_path - interconnect path structure
32  * @name: a string name of the path (useful for ftrace)
33  * @num_nodes: number of hops (nodes)
34  * @reqs: array of the requests applicable to this path of nodes
35  */
36 struct icc_path {
37 	const char *name;
38 	size_t num_nodes;
39 	struct icc_req reqs[];
40 };
41 
42 #endif
43