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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148/* SPDX-License-Identifier: GPL-2.0 *//* * Copyright (c) 2018-2019, Linaro Ltd. * Author: Georgi Djakov <georgi.djakov@linaro.org> */
#ifndef __LINUX_INTERCONNECT_H#define __LINUX_INTERCONNECT_H
#include <linux/mutex.h>#include <linux/types.h>
/* macros for converting to icc units */#define Bps_to_icc(x) ((x) / 1000)#define kBps_to_icc(x) (x)#define MBps_to_icc(x) ((x) * 1000)#define GBps_to_icc(x) ((x) * 1000 * 1000)#define bps_to_icc(x) (1)#define kbps_to_icc(x) (((x) + 7) / 8)#define Mbps_to_icc(x) ((x) * 1000 / 8)#define Gbps_to_icc(x) ((x) * 1000 * 1000 / 8)
/* macro to indicate dynamic id allocation */#define ICC_ALLOC_DYN_ID -1
struct icc_path;struct device;
/** * struct icc_bulk_data - Data used for bulk icc operations. * * @path: reference to the interconnect path (internal use) * @name: the name from the "interconnect-names" DT property * @avg_bw: average bandwidth in icc units * @peak_bw: peak bandwidth in icc units */struct icc_bulk_data { struct icc_path *path; const char *name; u32 avg_bw; u32 peak_bw;};
#if IS_ENABLED(CONFIG_INTERCONNECT)
struct icc_path *of_icc_get(struct device *dev, const char *name);struct icc_path *devm_of_icc_get(struct device *dev, const char *name);int devm_of_icc_bulk_get(struct device *dev, int num_paths, struct icc_bulk_data *paths);struct icc_path *of_icc_get_by_index(struct device *dev, int idx);struct icc_path *devm_of_icc_get_by_index(struct device *dev, int idx);void icc_put(struct icc_path *path);int icc_enable(struct icc_path *path);int icc_disable(struct icc_path *path);int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw);void icc_set_tag(struct icc_path *path, u32 tag);const char *icc_get_name(struct icc_path *path);int __must_check of_icc_bulk_get(struct device *dev, int num_paths, struct icc_bulk_data *paths);void icc_bulk_put(int num_paths, struct icc_bulk_data *paths);int icc_bulk_set_bw(int num_paths, const struct icc_bulk_data *paths);int icc_bulk_enable(int num_paths, const struct icc_bulk_data *paths);void icc_bulk_disable(int num_paths, const struct icc_bulk_data *paths);
#else
static inline struct icc_path *of_icc_get(struct device *dev, const char *name){ return NULL;}
static inline struct icc_path *devm_of_icc_get(struct device *dev, const char *name){ return NULL;}
static inline struct icc_path *of_icc_get_by_index(struct device *dev, int idx){ return NULL;}
static inline struct icc_path *devm_of_icc_get_by_index(struct device *dev, int idx){ return NULL;}
static inline void icc_put(struct icc_path *path){}
static inline int icc_enable(struct icc_path *path){ return 0;}
static inline int icc_disable(struct icc_path *path){ return 0;}
static inline int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw){ return 0;}
static inline void icc_set_tag(struct icc_path *path, u32 tag){}
static inline const char *icc_get_name(struct icc_path *path){ return NULL;}
static inline int of_icc_bulk_get(struct device *dev, int num_paths, struct icc_bulk_data *paths){ return 0;}
static inline int devm_of_icc_bulk_get(struct device *dev, int num_paths, struct icc_bulk_data *paths){ return 0;}
static inline void icc_bulk_put(int num_paths, struct icc_bulk_data *paths){}
static inline int icc_bulk_set_bw(int num_paths, const struct icc_bulk_data *paths){ return 0;}
static inline int icc_bulk_enable(int num_paths, const struct icc_bulk_data *paths){ return 0;}
static inline void icc_bulk_disable(int num_paths, const struct icc_bulk_data *paths){}
#endif /* CONFIG_INTERCONNECT */
#endif /* __LINUX_INTERCONNECT_H */