| /* | |
| * ARM Power State and Coordination Interface (PSCI) header | |
| * | |
| * This header holds common PSCI defines and macros shared | |
| * by: ARM kernel, ARM64 kernel, KVM ARM/ARM64 and user space. | |
| * | |
| * Copyright (C) 2014 Linaro Ltd. | |
| * Author: Anup Patel <anup.patel@linaro.org> | |
| */ | |
| #ifndef _UAPI_LINUX_PSCI_H | |
| #define _UAPI_LINUX_PSCI_H | |
| /* | |
| * PSCI v0.1 interface | |
| * | |
| * The PSCI v0.1 function numbers are implementation defined. | |
| * | |
| * Only PSCI return values such as: SUCCESS, NOT_SUPPORTED, | |
| * INVALID_PARAMS, and DENIED defined below are applicable | |
| * to PSCI v0.1. | |
| */ | |
| /* PSCI v0.2 interface */ | |
| #define PSCI_0_2_FN_BASE 0x84000000 | |
| #define PSCI_0_2_FN(n) (PSCI_0_2_FN_BASE + (n)) | |
| #define PSCI_0_2_64BIT 0x40000000 | |
| #define PSCI_0_2_FN64_BASE \ | |
| (PSCI_0_2_FN_BASE + PSCI_0_2_64BIT) | |
| #define PSCI_0_2_FN64(n) (PSCI_0_2_FN64_BASE + (n)) | |
| #define PSCI_0_2_FN_PSCI_VERSION PSCI_0_2_FN(0) | |
| #define PSCI_0_2_FN_CPU_SUSPEND PSCI_0_2_FN(1) | |
| #define PSCI_0_2_FN_CPU_OFF PSCI_0_2_FN(2) | |
| #define PSCI_0_2_FN_CPU_ON PSCI_0_2_FN(3) | |
| #define PSCI_0_2_FN_AFFINITY_INFO PSCI_0_2_FN(4) | |
| #define PSCI_0_2_FN_MIGRATE PSCI_0_2_FN(5) | |
| #define PSCI_0_2_FN_MIGRATE_INFO_TYPE PSCI_0_2_FN(6) | |
| #define PSCI_0_2_FN_MIGRATE_INFO_UP_CPU PSCI_0_2_FN(7) | |
| #define PSCI_0_2_FN_SYSTEM_OFF PSCI_0_2_FN(8) | |
| #define PSCI_0_2_FN_SYSTEM_RESET PSCI_0_2_FN(9) | |
| #define PSCI_0_2_FN64_CPU_SUSPEND PSCI_0_2_FN64(1) | |
| #define PSCI_0_2_FN64_CPU_ON PSCI_0_2_FN64(3) | |
| #define PSCI_0_2_FN64_AFFINITY_INFO PSCI_0_2_FN64(4) | |
| #define PSCI_0_2_FN64_MIGRATE PSCI_0_2_FN64(5) | |
| #define PSCI_0_2_FN64_MIGRATE_INFO_UP_CPU PSCI_0_2_FN64(7) | |
| /* PSCI v0.2 power state encoding for CPU_SUSPEND function */ | |
| #define PSCI_0_2_POWER_STATE_ID_MASK 0xffff | |
| #define PSCI_0_2_POWER_STATE_ID_SHIFT 0 | |
| #define PSCI_0_2_POWER_STATE_TYPE_SHIFT 16 | |
| #define PSCI_0_2_POWER_STATE_TYPE_MASK \ | |
| (0x1 << PSCI_0_2_POWER_STATE_TYPE_SHIFT) | |
| #define PSCI_0_2_POWER_STATE_AFFL_SHIFT 24 | |
| #define PSCI_0_2_POWER_STATE_AFFL_MASK \ | |
| (0x3 << PSCI_0_2_POWER_STATE_AFFL_SHIFT) | |
| /* PSCI v0.2 affinity level state returned by AFFINITY_INFO */ | |
| #define PSCI_0_2_AFFINITY_LEVEL_ON 0 | |
| #define PSCI_0_2_AFFINITY_LEVEL_OFF 1 | |
| #define PSCI_0_2_AFFINITY_LEVEL_ON_PENDING 2 | |
| /* PSCI v0.2 multicore support in Trusted OS returned by MIGRATE_INFO_TYPE */ | |
| #define PSCI_0_2_TOS_UP_MIGRATE 0 | |
| #define PSCI_0_2_TOS_UP_NO_MIGRATE 1 | |
| #define PSCI_0_2_TOS_MP 2 | |
| /* PSCI version decoding (independent of PSCI version) */ | |
| #define PSCI_VERSION_MAJOR_SHIFT 16 | |
| #define PSCI_VERSION_MINOR_MASK \ | |
| ((1U << PSCI_VERSION_MAJOR_SHIFT) - 1) | |
| #define PSCI_VERSION_MAJOR_MASK ~PSCI_VERSION_MINOR_MASK | |
| #define PSCI_VERSION_MAJOR(ver) \ | |
| (((ver) & PSCI_VERSION_MAJOR_MASK) >> PSCI_VERSION_MAJOR_SHIFT) | |
| #define PSCI_VERSION_MINOR(ver) \ | |
| ((ver) & PSCI_VERSION_MINOR_MASK) | |
| /* PSCI return values (inclusive of all PSCI versions) */ | |
| #define PSCI_RET_SUCCESS 0 | |
| #define PSCI_RET_NOT_SUPPORTED -1 | |
| #define PSCI_RET_INVALID_PARAMS -2 | |
| #define PSCI_RET_DENIED -3 | |
| #define PSCI_RET_ALREADY_ON -4 | |
| #define PSCI_RET_ON_PENDING -5 | |
| #define PSCI_RET_INTERNAL_FAILURE -6 | |
| #define PSCI_RET_NOT_PRESENT -7 | |
| #define PSCI_RET_DISABLED -8 | |
| #ifdef CONFIG_ARM_PSCI_FW | |
| typedef unsigned long (psci_fn)(unsigned long, unsigned long, | |
| unsigned long, unsigned long); | |
| extern psci_fn *invoke_psci_fn; | |
| #else | |
| unsigned long invoke_psci_fn(unsigned long a0, unsigned long a1, | |
| unsigned long a2, unsigned long a3) | |
| { | |
| return PSCI_RET_DISABLED; | |
| } | |
| #endif | |
| #endif /* _UAPI_LINUX_PSCI_H */ |