| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
| /* |
| * 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 _LINUX_PSCI_H |
| #define _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) |
| |
| #define PSCI_1_0_FN_PSCI_FEATURES PSCI_0_2_FN(10) |
| #define PSCI_1_0_FN_CPU_FREEZE PSCI_0_2_FN(11) |
| #define PSCI_1_0_FN_CPU_DEFAULT_SUSPEND PSCI_0_2_FN(12) |
| #define PSCI_1_0_FN_NODE_HW_STATE PSCI_0_2_FN(13) |
| #define PSCI_1_0_FN_SYSTEM_SUSPEND PSCI_0_2_FN(14) |
| #define PSCI_1_0_FN_SET_SUSPEND_MODE PSCI_0_2_FN(15) |
| #define PSCI_1_0_FN_STAT_RESIDENCY PSCI_0_2_FN(16) |
| #define PSCI_1_0_FN_STAT_COUNT PSCI_0_2_FN(17) |
| |
| #define PSCI_1_1_FN_SYSTEM_RESET2 PSCI_0_2_FN(18) |
| #define PSCI_1_1_FN_MEM_PROTECT PSCI_0_2_FN(19) |
| #define PSCI_1_1_FN_MEM_PROTECT_CHECK_RANGE PSCI_0_2_FN(20) |
| |
| #define PSCI_1_0_FN64_CPU_DEFAULT_SUSPEND PSCI_0_2_FN64(12) |
| #define PSCI_1_0_FN64_NODE_HW_STATE PSCI_0_2_FN64(13) |
| #define PSCI_1_0_FN64_SYSTEM_SUSPEND PSCI_0_2_FN64(14) |
| #define PSCI_1_0_FN64_STAT_RESIDENCY PSCI_0_2_FN64(16) |
| #define PSCI_1_0_FN64_STAT_COUNT PSCI_0_2_FN64(17) |
| |
| #define PSCI_1_1_FN64_SYSTEM_RESET2 PSCI_0_2_FN64(18) |
| #define PSCI_1_1_FN64_MEM_PROTECT_CHECK_RANGE PSCI_0_2_FN64(20) |
| |
| /* 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 extended power state encoding for CPU_SUSPEND function */ |
| #define PSCI_1_0_EXT_POWER_STATE_ID_MASK 0xfffffff |
| #define PSCI_1_0_EXT_POWER_STATE_ID_SHIFT 0 |
| #define PSCI_1_0_EXT_POWER_STATE_TYPE_SHIFT 30 |
| #define PSCI_1_0_EXT_POWER_STATE_TYPE_MASK \ |
| (0x1 << PSCI_1_0_EXT_POWER_STATE_TYPE_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 v1.1 reset type encoding for SYSTEM_RESET2 */ |
| #define PSCI_1_1_RESET_TYPE_SYSTEM_WARM_RESET 0 |
| #define PSCI_1_1_RESET_TYPE_VENDOR_START 0x80000000U |
| |
| /* 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) |
| #define PSCI_VERSION(maj, min) \ |
| ((((maj) << PSCI_VERSION_MAJOR_SHIFT) & PSCI_VERSION_MAJOR_MASK) | \ |
| ((min) & PSCI_VERSION_MINOR_MASK)) |
| |
| /* PSCI features decoding (>=1.0) */ |
| #define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT 1 |
| #define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_MASK \ |
| (0x1 << PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT) |
| |
| #define PSCI_1_0_OS_INITIATED BIT(0) |
| #define PSCI_1_0_SUSPEND_MODE_PC 0 |
| #define PSCI_1_0_SUSPEND_MODE_OSI 1 |
| |
| /* 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 |
| #define PSCI_RET_INVALID_ADDRESS -9 |
| |
| #endif /* _LINUX_PSCI_H */ |
