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 31 struct icc_path *devm_of_icc_get(struct device *dev, const char *name);
45 int devm_of_icc_bulk_get(struct device *dev, i <<
46 struct icc_path *of_icc_get_by_index(struct de 32 struct icc_path *of_icc_get_by_index(struct device *dev, int idx);
47 void icc_put(struct icc_path *path); 33 void icc_put(struct icc_path *path);
48 int icc_enable(struct icc_path *path); 34 int icc_enable(struct icc_path *path);
49 int icc_disable(struct icc_path *path); 35 int icc_disable(struct icc_path *path);
50 int icc_set_bw(struct icc_path *path, u32 avg_ 36 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 37 void icc_set_tag(struct icc_path *path, u32 tag);
52 const char *icc_get_name(struct icc_path *path 38 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 39
60 #else 40 #else
61 41
>> 42 static inline struct icc_path *icc_get(struct device *dev, const int src_id,
>> 43 const int dst_id)
>> 44 {
>> 45 return NULL;
>> 46 }
>> 47
62 static inline struct icc_path *of_icc_get(stru 48 static inline struct icc_path *of_icc_get(struct device *dev,
63 cons 49 const char *name)
64 { 50 {
65 return NULL; 51 return NULL;
66 } 52 }
67 53
68 static inline struct icc_path *devm_of_icc_get 54 static inline struct icc_path *devm_of_icc_get(struct device *dev,
69 55 const char *name)
70 { 56 {
71 return NULL; 57 return NULL;
72 } 58 }
73 59
74 static inline struct icc_path *of_icc_get_by_i 60 static inline struct icc_path *of_icc_get_by_index(struct device *dev, int idx)
75 { 61 {
76 return NULL; 62 return NULL;
77 } 63 }
78 64
79 static inline void icc_put(struct icc_path *pa 65 static inline void icc_put(struct icc_path *path)
80 { 66 {
81 } 67 }
82 68
83 static inline int icc_enable(struct icc_path * 69 static inline int icc_enable(struct icc_path *path)
84 { 70 {
85 return 0; 71 return 0;
86 } 72 }
87 73
88 static inline int icc_disable(struct icc_path 74 static inline int icc_disable(struct icc_path *path)
89 { 75 {
90 return 0; 76 return 0;
91 } 77 }
92 78
93 static inline int icc_set_bw(struct icc_path * 79 static inline int icc_set_bw(struct icc_path *path, u32 avg_bw, u32 peak_bw)
94 { 80 {
95 return 0; 81 return 0;
96 } 82 }
97 83
98 static inline void icc_set_tag(struct icc_path 84 static inline void icc_set_tag(struct icc_path *path, u32 tag)
99 { 85 {
100 } 86 }
101 87
102 static inline const char *icc_get_name(struct 88 static inline const char *icc_get_name(struct icc_path *path)
103 { 89 {
104 return NULL; 90 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 { <<
134 } 91 }
135 92
136 #endif /* CONFIG_INTERCONNECT */ 93 #endif /* CONFIG_INTERCONNECT */
137 94
138 #endif /* __LINUX_INTERCONNECT_H */ 95 #endif /* __LINUX_INTERCONNECT_H */
139 96
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