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| 2 | |
| 3 | * Copyright (c) 2018-2019, Linaro Ltd.
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| 4 | * Author: Georgi Djakov <[email protected]>
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| 5 |
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| 6 |
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| 7 | #ifndef __LINUX_INTERCONNECT_H
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| 8 | #define __LINUX_INTERCONNECT_H
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| 9 |
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| 10 | #include <linux/mutex.h>
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| 11 | #include <linux/types.h>
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| 12 |
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| 13 |
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| 14 | #define Bps_to_icc(x) ((x) / 1000)
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| 15 | #define kBps_to_icc(x) (x)
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| 16 | #define MBps_to_icc(x) ((x) * 1000)
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| 17 | #define GBps_to_icc(x) ((x) * 1000 * 1000)
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| 18 | #define bps_to_icc(x) (1)
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| 19 | #define kbps_to_icc(x) ((x) / 8 + ((x) % 8 ? 1 : 0))
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| 20 | #define Mbps_to_icc(x) ((x) * 1000 / 8)
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| 21 | #define Gbps_to_icc(x) ((x) * 1000 * 1000 / 8)
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| 22 |
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| 23 | struct icc_path;
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| 24 | struct device;
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| 25 |
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| 26 | #if IS_ENABLED(CONFIG_INTERCONNECT)
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| 27 |
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| 28 | struct icc_path *icc_get(struct device *dev, const int src_id,
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| 29 | const int dst_id);
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| 30 | struct icc_path *of_icc_get(struct device *dev, const char *name);
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| 31 | struct icc_path *devm_of_icc_get(struct device *dev, const char *name);
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| 32 | struct icc_path *of_icc_get_by_index(struct device *dev, int idx);
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| 33 | void icc_put(struct icc_path *path);
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| 34 | int icc_enable(struct icc_path *path);
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| 35 | int icc_disable(struct icc_path *path);
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| 36 | int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw);
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| 37 | void icc_set_tag(struct icc_path *path, u32 tag);
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| 38 | const char *icc_get_name(struct icc_path *path);
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| 39 |
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| 40 | #else
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| 41 |
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| 42 | static inline struct icc_path *icc_get(struct device *dev, const int src_id,
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| 43 | const int dst_id)
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| 44 | {
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| 45 | return NULL;
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| 46 | }
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| 47 |
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| 48 | static inline struct icc_path *of_icc_get(struct device *dev,
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| 49 | const char *name)
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| 50 | {
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| 51 | return NULL;
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| 52 | }
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| 53 |
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| 54 | static inline struct icc_path *devm_of_icc_get(struct device *dev,
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| 55 | const char *name)
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| 56 | {
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| 57 | return NULL;
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| 58 | }
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| 59 |
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| 60 | static inline struct icc_path *of_icc_get_by_index(struct device *dev, int idx)
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| 61 | {
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| 62 | return NULL;
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| 63 | }
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| 64 |
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| 65 | static inline void icc_put(struct icc_path *path)
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| 66 | {
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| 67 | }
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| 68 |
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| 69 | static inline int icc_enable(struct icc_path *path)
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| 70 | {
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| 71 | return 0;
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| 72 | }
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| 73 |
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| 74 | static inline int icc_disable(struct icc_path *path)
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| 75 | {
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| 76 | return 0;
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| 77 | }
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| 78 |
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| 79 | static inline int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw)
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| 80 | {
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| 81 | return 0;
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| 82 | }
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| 83 |
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| 84 | static inline void icc_set_tag(struct icc_path *path, u32 tag)
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| 85 | {
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| 86 | }
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| 87 |
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| 88 | static inline const char *icc_get_name(struct icc_path *path)
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| 89 | {
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| 90 | return NULL;
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| 91 | }
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| 92 |
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| 93 | #endif
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| 94 |
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| 95 | #endif
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