psci.h (4484B)
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 #define PSCI_1_0_FN_SET_SUSPEND_MODE PSCI_0_2_FN(15) 53 #define PSCI_1_1_FN_SYSTEM_RESET2 PSCI_0_2_FN(18) 54 55 #define PSCI_1_0_FN64_SYSTEM_SUSPEND PSCI_0_2_FN64(14) 56 #define PSCI_1_1_FN64_SYSTEM_RESET2 PSCI_0_2_FN64(18) 57 58 /* PSCI v0.2 power state encoding for CPU_SUSPEND function */ 59 #define PSCI_0_2_POWER_STATE_ID_MASK 0xffff 60 #define PSCI_0_2_POWER_STATE_ID_SHIFT 0 61 #define PSCI_0_2_POWER_STATE_TYPE_SHIFT 16 62 #define PSCI_0_2_POWER_STATE_TYPE_MASK \ 63 (0x1 << PSCI_0_2_POWER_STATE_TYPE_SHIFT) 64 #define PSCI_0_2_POWER_STATE_AFFL_SHIFT 24 65 #define PSCI_0_2_POWER_STATE_AFFL_MASK \ 66 (0x3 << PSCI_0_2_POWER_STATE_AFFL_SHIFT) 67 68 /* PSCI extended power state encoding for CPU_SUSPEND function */ 69 #define PSCI_1_0_EXT_POWER_STATE_ID_MASK 0xfffffff 70 #define PSCI_1_0_EXT_POWER_STATE_ID_SHIFT 0 71 #define PSCI_1_0_EXT_POWER_STATE_TYPE_SHIFT 30 72 #define PSCI_1_0_EXT_POWER_STATE_TYPE_MASK \ 73 (0x1 << PSCI_1_0_EXT_POWER_STATE_TYPE_SHIFT) 74 75 /* PSCI v0.2 affinity level state returned by AFFINITY_INFO */ 76 #define PSCI_0_2_AFFINITY_LEVEL_ON 0 77 #define PSCI_0_2_AFFINITY_LEVEL_OFF 1 78 #define PSCI_0_2_AFFINITY_LEVEL_ON_PENDING 2 79 80 /* PSCI v0.2 multicore support in Trusted OS returned by MIGRATE_INFO_TYPE */ 81 #define PSCI_0_2_TOS_UP_MIGRATE 0 82 #define PSCI_0_2_TOS_UP_NO_MIGRATE 1 83 #define PSCI_0_2_TOS_MP 2 84 85 /* PSCI v1.1 reset type encoding for SYSTEM_RESET2 */ 86 #define PSCI_1_1_RESET_TYPE_SYSTEM_WARM_RESET 0 87 #define PSCI_1_1_RESET_TYPE_VENDOR_START 0x80000000U 88 89 /* PSCI version decoding (independent of PSCI version) */ 90 #define PSCI_VERSION_MAJOR_SHIFT 16 91 #define PSCI_VERSION_MINOR_MASK \ 92 ((1U << PSCI_VERSION_MAJOR_SHIFT) - 1) 93 #define PSCI_VERSION_MAJOR_MASK ~PSCI_VERSION_MINOR_MASK 94 #define PSCI_VERSION_MAJOR(ver) \ 95 (((ver) & PSCI_VERSION_MAJOR_MASK) >> PSCI_VERSION_MAJOR_SHIFT) 96 #define PSCI_VERSION_MINOR(ver) \ 97 ((ver) & PSCI_VERSION_MINOR_MASK) 98 #define PSCI_VERSION(maj, min) \ 99 ((((maj) << PSCI_VERSION_MAJOR_SHIFT) & PSCI_VERSION_MAJOR_MASK) | \ 100 ((min) & PSCI_VERSION_MINOR_MASK)) 101 102 /* PSCI features decoding (>=1.0) */ 103 #define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT 1 104 #define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_MASK \ 105 (0x1 << PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT) 106 107 #define PSCI_1_0_OS_INITIATED BIT(0) 108 #define PSCI_1_0_SUSPEND_MODE_PC 0 109 #define PSCI_1_0_SUSPEND_MODE_OSI 1 110 111 /* PSCI return values (inclusive of all PSCI versions) */ 112 #define PSCI_RET_SUCCESS 0 113 #define PSCI_RET_NOT_SUPPORTED -1 114 #define PSCI_RET_INVALID_PARAMS -2 115 #define PSCI_RET_DENIED -3 116 #define PSCI_RET_ALREADY_ON -4 117 #define PSCI_RET_ON_PENDING -5 118 #define PSCI_RET_INTERNAL_FAILURE -6 119 #define PSCI_RET_NOT_PRESENT -7 120 #define PSCI_RET_DISABLED -8 121 #define PSCI_RET_INVALID_ADDRESS -9 122 123 #endif /* _LINUX_PSCI_H */