1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* 2 /*
3 * Copyright (c) 2018-2019, Linaro Ltd. 3 * Copyright (c) 2018-2019, Linaro Ltd.
4 * Author: Georgi Djakov <georgi.djakov@linaro 4 * Author: Georgi Djakov <georgi.djakov@linaro.org>
5 */ 5 */
6 6
7 #ifndef __LINUX_INTERCONNECT_H 7 #ifndef __LINUX_INTERCONNECT_H
8 #define __LINUX_INTERCONNECT_H 8 #define __LINUX_INTERCONNECT_H
9 9
10 #include <linux/mutex.h> 10 #include <linux/mutex.h>
11 #include <linux/types.h> 11 #include <linux/types.h>
12 12
13 /* macros for converting to icc units */ 13 /* macros for converting to icc units */
14 #define Bps_to_icc(x) ((x) / 1000) 14 #define Bps_to_icc(x) ((x) / 1000)
15 #define kBps_to_icc(x) (x) 15 #define kBps_to_icc(x) (x)
16 #define MBps_to_icc(x) ((x) * 1000) 16 #define MBps_to_icc(x) ((x) * 1000)
17 #define GBps_to_icc(x) ((x) * 1000 * 1000) 17 #define GBps_to_icc(x) ((x) * 1000 * 1000)
18 #define bps_to_icc(x) (1) 18 #define bps_to_icc(x) (1)
19 #define kbps_to_icc(x) ((x) / 8 + ((x) % 8 ? 19 #define kbps_to_icc(x) ((x) / 8 + ((x) % 8 ? 1 : 0))
20 #define Mbps_to_icc(x) ((x) * 1000 / 8) 20 #define Mbps_to_icc(x) ((x) * 1000 / 8)
21 #define Gbps_to_icc(x) ((x) * 1000 * 1000 / 8 21 #define Gbps_to_icc(x) ((x) * 1000 * 1000 / 8)
22 22
23 struct icc_path; 23 struct icc_path;
24 struct device; 24 struct device;
25 25
26 /** <<
27 * struct icc_bulk_data - Data used for bulk i <<
28 * <<
29 * @path: reference to the interconnect path ( <<
30 * @name: the name from the "interconnect-name <<
31 * @avg_bw: average bandwidth in icc units <<
32 * @peak_bw: peak bandwidth in icc units <<
33 */ <<
34 struct icc_bulk_data { <<
35 struct icc_path *path; <<
36 const char *name; <<
37 u32 avg_bw; <<
38 u32 peak_bw; <<
39 }; <<
40 <<
41 #if IS_ENABLED(CONFIG_INTERCONNECT) 26 #if IS_ENABLED(CONFIG_INTERCONNECT)
42 27
>> 28 struct icc_path *icc_get(struct device *dev, const int src_id,
>> 29 const int dst_id);
43 struct icc_path *of_icc_get(struct device *dev 30 struct icc_path *of_icc_get(struct device *dev, const char *name);
44 struct icc_path *devm_of_icc_get(struct device <<
45 int devm_of_icc_bulk_get(struct device *dev, i <<
46 struct icc_path *of_icc_get_by_index(struct de <<
47 void icc_put(struct icc_path *path); 31 void icc_put(struct icc_path *path);
48 int icc_enable(struct icc_path *path); 32 int icc_enable(struct icc_path *path);
49 int icc_disable(struct icc_path *path); 33 int icc_disable(struct icc_path *path);
50 int icc_set_bw(struct icc_path *path, u32 avg_ 34 int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw);
51 void icc_set_tag(struct icc_path *path, u32 ta 35 void icc_set_tag(struct icc_path *path, u32 tag);
52 const char *icc_get_name(struct icc_path *path <<
53 int __must_check of_icc_bulk_get(struct device <<
54 struct icc_bu <<
55 void icc_bulk_put(int num_paths, struct icc_bu <<
56 int icc_bulk_set_bw(int num_paths, const struc <<
57 int icc_bulk_enable(int num_paths, const struc <<
58 void icc_bulk_disable(int num_paths, const str <<
59 36
60 #else 37 #else
61 38
62 static inline struct icc_path *of_icc_get(stru !! 39 static inline struct icc_path *icc_get(struct device *dev, const int src_id,
63 cons !! 40 const int dst_id)
64 { 41 {
65 return NULL; 42 return NULL;
66 } 43 }
67 44
68 static inline struct icc_path *devm_of_icc_get !! 45 static inline struct icc_path *of_icc_get(struct device *dev,
69 !! 46 const char *name)
70 { <<
71 return NULL; <<
72 } <<
73 <<
74 static inline struct icc_path *of_icc_get_by_i <<
75 { 47 {
76 return NULL; 48 return NULL;
77 } 49 }
78 50
79 static inline void icc_put(struct icc_path *pa 51 static inline void icc_put(struct icc_path *path)
80 { 52 {
81 } 53 }
82 54
83 static inline int icc_enable(struct icc_path * 55 static inline int icc_enable(struct icc_path *path)
84 { 56 {
85 return 0; 57 return 0;
86 } 58 }
87 59
88 static inline int icc_disable(struct icc_path 60 static inline int icc_disable(struct icc_path *path)
89 { 61 {
90 return 0; 62 return 0;
91 } 63 }
92 64
93 static inline int icc_set_bw(struct icc_path * 65 static inline int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw)
94 { 66 {
95 return 0; 67 return 0;
96 } 68 }
97 69
98 static inline void icc_set_tag(struct icc_path 70 static inline void icc_set_tag(struct icc_path *path, u32 tag)
99 { <<
100 } <<
101 <<
102 static inline const char *icc_get_name(struct <<
103 { <<
104 return NULL; <<
105 } <<
106 <<
107 static inline int of_icc_bulk_get(struct devic <<
108 { <<
109 return 0; <<
110 } <<
111 <<
112 static inline int devm_of_icc_bulk_get(struct <<
113 struct <<
114 { <<
115 return 0; <<
116 } <<
117 <<
118 static inline void icc_bulk_put(int num_paths, <<
119 { <<
120 } <<
121 <<
122 static inline int icc_bulk_set_bw(int num_path <<
123 { <<
124 return 0; <<
125 } <<
126 <<
127 static inline int icc_bulk_enable(int num_path <<
128 { <<
129 return 0; <<
130 } <<
131 <<
132 static inline void icc_bulk_disable(int num_pa <<
133 { 71 {
134 } 72 }
135 73
136 #endif /* CONFIG_INTERCONNECT */ 74 #endif /* CONFIG_INTERCONNECT */
137 75
138 #endif /* __LINUX_INTERCONNECT_H */ 76 #endif /* __LINUX_INTERCONNECT_H */
139 77
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.