| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | /* |
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| 3 | * Interconnect framework internal structs |
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| 4 | * |
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| 5 | * Copyright (c) 2019, Linaro Ltd. |
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| 6 | * Author: Georgi Djakov <georgi.djakov@linaro.org> |
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| 7 | */ |
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| 8 | |
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| 9 | #ifndef __DRIVERS_INTERCONNECT_INTERNAL_H |
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| 10 | #define __DRIVERS_INTERCONNECT_INTERNAL_H |
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| 11 | |
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| 12 | /** |
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| 13 | * struct icc_req - constraints that are attached to each node |
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| 14 | * @req_node: entry in list of requests for the particular @node |
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| 15 | * @node: the interconnect node to which this constraint applies |
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| 16 | * @dev: reference to the device that sets the constraints |
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| 17 | * @enabled: indicates whether the path with this request is enabled |
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| 18 | * @tag: path tag (optional) |
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| 19 | * @avg_bw: an integer describing the average bandwidth in kBps |
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| 20 | * @peak_bw: an integer describing the peak bandwidth in kBps |
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| 21 | */ |
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| 22 | struct icc_req { |
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| 23 | struct hlist_node req_node; |
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| 24 | struct icc_node *node; |
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| 25 | struct device *dev; |
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| 26 | bool enabled; |
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| 27 | u32 tag; |
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| 28 | u32 avg_bw; |
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| 29 | u32 peak_bw; |
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| 30 | }; |
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| 31 | |
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| 32 | /** |
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| 33 | * struct icc_path - interconnect path structure |
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| 34 | * @name: a string name of the path (useful for ftrace) |
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| 35 | * @num_nodes: number of hops (nodes) |
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| 36 | * @reqs: array of the requests applicable to this path of nodes |
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| 37 | */ |
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| 38 | struct icc_path { |
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| 39 | const char *name; |
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| 40 | size_t num_nodes; |
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| 41 | struct icc_req reqs[] __counted_by(num_nodes); |
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| 42 | }; |
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| 43 | |
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| 44 | struct icc_path *icc_get(struct device *dev, const char *src, const char *dst); |
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| 45 | int icc_debugfs_client_init(struct dentry *icc_dir); |
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| 46 | |
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| 47 | #endif |
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| 48 | |
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