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1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
---|---|
2 | /* |
3 | * ARM Power State and Coordination Interface (PSCI) header |
4 | * |
5 | * This header holds common PSCI defines and macros shared |
6 | * by: ARM kernel, ARM64 kernel, KVM ARM/ARM64 and user space. |
7 | * |
8 | * Copyright (C) 2014 Linaro Ltd. |
9 | * Author: Anup Patel <anup.patel@linaro.org> |
10 | */ |
11 | |
12 | #ifndef _LINUX_PSCI_H |
13 | #define _LINUX_PSCI_H |
14 | |
15 | /* |
16 | * PSCI v0.1 interface |
17 | * |
18 | * The PSCI v0.1 function numbers are implementation defined. |
19 | * |
20 | * Only PSCI return values such as: SUCCESS, NOT_SUPPORTED, |
21 | * INVALID_PARAMS, and DENIED defined below are applicable |
22 | * to PSCI v0.1. |
23 | */ |
24 | |
25 | /* PSCI v0.2 interface */ |
26 | #define PSCI_0_2_FN_BASE 0x84000000 |
27 | #define PSCI_0_2_FN(n) (PSCI_0_2_FN_BASE + (n)) |
28 | #define PSCI_0_2_64BIT 0x40000000 |
29 | #define PSCI_0_2_FN64_BASE \ |
30 | (PSCI_0_2_FN_BASE + PSCI_0_2_64BIT) |
31 | #define PSCI_0_2_FN64(n) (PSCI_0_2_FN64_BASE + (n)) |
32 | |
33 | #define PSCI_0_2_FN_PSCI_VERSION PSCI_0_2_FN(0) |
34 | #define PSCI_0_2_FN_CPU_SUSPEND PSCI_0_2_FN(1) |
35 | #define PSCI_0_2_FN_CPU_OFF PSCI_0_2_FN(2) |
36 | #define PSCI_0_2_FN_CPU_ON PSCI_0_2_FN(3) |
37 | #define PSCI_0_2_FN_AFFINITY_INFO PSCI_0_2_FN(4) |
38 | #define PSCI_0_2_FN_MIGRATE PSCI_0_2_FN(5) |
39 | #define PSCI_0_2_FN_MIGRATE_INFO_TYPE PSCI_0_2_FN(6) |
40 | #define PSCI_0_2_FN_MIGRATE_INFO_UP_CPU PSCI_0_2_FN(7) |
41 | #define PSCI_0_2_FN_SYSTEM_OFF PSCI_0_2_FN(8) |
42 | #define PSCI_0_2_FN_SYSTEM_RESET PSCI_0_2_FN(9) |
43 | |
44 | #define PSCI_0_2_FN64_CPU_SUSPEND PSCI_0_2_FN64(1) |
45 | #define PSCI_0_2_FN64_CPU_ON PSCI_0_2_FN64(3) |
46 | #define PSCI_0_2_FN64_AFFINITY_INFO PSCI_0_2_FN64(4) |
47 | #define PSCI_0_2_FN64_MIGRATE PSCI_0_2_FN64(5) |
48 | #define PSCI_0_2_FN64_MIGRATE_INFO_UP_CPU PSCI_0_2_FN64(7) |
49 | |
50 | #define PSCI_1_0_FN_PSCI_FEATURES PSCI_0_2_FN(10) |
51 | #define PSCI_1_0_FN_SYSTEM_SUSPEND PSCI_0_2_FN(14) |
52 | |
53 | #define PSCI_1_0_FN64_SYSTEM_SUSPEND PSCI_0_2_FN64(14) |
54 | |
55 | /* PSCI v0.2 power state encoding for CPU_SUSPEND function */ |
56 | #define PSCI_0_2_POWER_STATE_ID_MASK 0xffff |
57 | #define PSCI_0_2_POWER_STATE_ID_SHIFT 0 |
58 | #define PSCI_0_2_POWER_STATE_TYPE_SHIFT 16 |
59 | #define PSCI_0_2_POWER_STATE_TYPE_MASK \ |
60 | (0x1 << PSCI_0_2_POWER_STATE_TYPE_SHIFT) |
61 | #define PSCI_0_2_POWER_STATE_AFFL_SHIFT 24 |
62 | #define PSCI_0_2_POWER_STATE_AFFL_MASK \ |
63 | (0x3 << PSCI_0_2_POWER_STATE_AFFL_SHIFT) |
64 | |
65 | /* PSCI extended power state encoding for CPU_SUSPEND function */ |
66 | #define PSCI_1_0_EXT_POWER_STATE_ID_MASK 0xfffffff |
67 | #define PSCI_1_0_EXT_POWER_STATE_ID_SHIFT 0 |
68 | #define PSCI_1_0_EXT_POWER_STATE_TYPE_SHIFT 30 |
69 | #define PSCI_1_0_EXT_POWER_STATE_TYPE_MASK \ |
70 | (0x1 << PSCI_1_0_EXT_POWER_STATE_TYPE_SHIFT) |
71 | |
72 | /* PSCI v0.2 affinity level state returned by AFFINITY_INFO */ |
73 | #define PSCI_0_2_AFFINITY_LEVEL_ON 0 |
74 | #define PSCI_0_2_AFFINITY_LEVEL_OFF 1 |
75 | #define PSCI_0_2_AFFINITY_LEVEL_ON_PENDING 2 |
76 | |
77 | /* PSCI v0.2 multicore support in Trusted OS returned by MIGRATE_INFO_TYPE */ |
78 | #define PSCI_0_2_TOS_UP_MIGRATE 0 |
79 | #define PSCI_0_2_TOS_UP_NO_MIGRATE 1 |
80 | #define PSCI_0_2_TOS_MP 2 |
81 | |
82 | /* PSCI version decoding (independent of PSCI version) */ |
83 | #define PSCI_VERSION_MAJOR_SHIFT 16 |
84 | #define PSCI_VERSION_MINOR_MASK \ |
85 | ((1U << PSCI_VERSION_MAJOR_SHIFT) - 1) |
86 | #define PSCI_VERSION_MAJOR_MASK ~PSCI_VERSION_MINOR_MASK |
87 | #define PSCI_VERSION_MAJOR(ver) \ |
88 | (((ver) & PSCI_VERSION_MAJOR_MASK) >> PSCI_VERSION_MAJOR_SHIFT) |
89 | #define PSCI_VERSION_MINOR(ver) \ |
90 | ((ver) & PSCI_VERSION_MINOR_MASK) |
91 | #define PSCI_VERSION(maj, min) \ |
92 | ((((maj) << PSCI_VERSION_MAJOR_SHIFT) & PSCI_VERSION_MAJOR_MASK) | \ |
93 | ((min) & PSCI_VERSION_MINOR_MASK)) |
94 | |
95 | /* PSCI features decoding (>=1.0) */ |
96 | #define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT 1 |
97 | #define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_MASK \ |
98 | (0x1 << PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT) |
99 | |
100 | /* PSCI return values (inclusive of all PSCI versions) */ |
101 | #define PSCI_RET_SUCCESS 0 |
102 | #define PSCI_RET_NOT_SUPPORTED -1 |
103 | #define PSCI_RET_INVALID_PARAMS -2 |
104 | #define PSCI_RET_DENIED -3 |
105 | #define PSCI_RET_ALREADY_ON -4 |
106 | #define PSCI_RET_ON_PENDING -5 |
107 | #define PSCI_RET_INTERNAL_FAILURE -6 |
108 | #define PSCI_RET_NOT_PRESENT -7 |
109 | #define PSCI_RET_DISABLED -8 |
110 | #define PSCI_RET_INVALID_ADDRESS -9 |
111 | |
112 | #endif /* _LINUX_PSCI_H */ |
113 |
Warning: That file was not part of the compilation database. It may have many parsing errors.