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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2/*3 * ARM Power State and Coordination Interface (PSCI) header4 *5 * This header holds common PSCI defines and macros shared6 * 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 _UAPI_LINUX_PSCI_H13#define _UAPI_LINUX_PSCI_H14 15/*16 * PSCI v0.1 interface17 *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 applicable22 * to PSCI v0.1.23 */24 25/* PSCI v0.2 interface */26#define PSCI_0_2_FN_BASE 0x8400000027#define PSCI_0_2_FN(n) (PSCI_0_2_FN_BASE + (n))28#define PSCI_0_2_64BIT 0x4000000029#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_CPU_FREEZE PSCI_0_2_FN(11)52#define PSCI_1_0_FN_CPU_DEFAULT_SUSPEND PSCI_0_2_FN(12)53#define PSCI_1_0_FN_NODE_HW_STATE PSCI_0_2_FN(13)54#define PSCI_1_0_FN_SYSTEM_SUSPEND PSCI_0_2_FN(14)55#define PSCI_1_0_FN_SET_SUSPEND_MODE PSCI_0_2_FN(15)56#define PSCI_1_0_FN_STAT_RESIDENCY PSCI_0_2_FN(16)57#define PSCI_1_0_FN_STAT_COUNT PSCI_0_2_FN(17)58 59#define PSCI_1_1_FN_SYSTEM_RESET2 PSCI_0_2_FN(18)60#define PSCI_1_1_FN_MEM_PROTECT PSCI_0_2_FN(19)61#define PSCI_1_1_FN_MEM_PROTECT_CHECK_RANGE PSCI_0_2_FN(20)62 63#define PSCI_1_0_FN64_CPU_DEFAULT_SUSPEND PSCI_0_2_FN64(12)64#define PSCI_1_0_FN64_NODE_HW_STATE PSCI_0_2_FN64(13)65#define PSCI_1_0_FN64_SYSTEM_SUSPEND PSCI_0_2_FN64(14)66#define PSCI_1_0_FN64_STAT_RESIDENCY PSCI_0_2_FN64(16)67#define PSCI_1_0_FN64_STAT_COUNT PSCI_0_2_FN64(17)68 69#define PSCI_1_1_FN64_SYSTEM_RESET2 PSCI_0_2_FN64(18)70#define PSCI_1_1_FN64_MEM_PROTECT_CHECK_RANGE PSCI_0_2_FN64(20)71 72/* PSCI v0.2 power state encoding for CPU_SUSPEND function */73#define PSCI_0_2_POWER_STATE_ID_MASK 0xffff74#define PSCI_0_2_POWER_STATE_ID_SHIFT 075#define PSCI_0_2_POWER_STATE_TYPE_SHIFT 1676#define PSCI_0_2_POWER_STATE_TYPE_MASK \77 (0x1 << PSCI_0_2_POWER_STATE_TYPE_SHIFT)78#define PSCI_0_2_POWER_STATE_AFFL_SHIFT 2479#define PSCI_0_2_POWER_STATE_AFFL_MASK \80 (0x3 << PSCI_0_2_POWER_STATE_AFFL_SHIFT)81 82/* PSCI extended power state encoding for CPU_SUSPEND function */83#define PSCI_1_0_EXT_POWER_STATE_ID_MASK 0xfffffff84#define PSCI_1_0_EXT_POWER_STATE_ID_SHIFT 085#define PSCI_1_0_EXT_POWER_STATE_TYPE_SHIFT 3086#define PSCI_1_0_EXT_POWER_STATE_TYPE_MASK \87 (0x1 << PSCI_1_0_EXT_POWER_STATE_TYPE_SHIFT)88 89/* PSCI v0.2 affinity level state returned by AFFINITY_INFO */90#define PSCI_0_2_AFFINITY_LEVEL_ON 091#define PSCI_0_2_AFFINITY_LEVEL_OFF 192#define PSCI_0_2_AFFINITY_LEVEL_ON_PENDING 293 94/* PSCI v0.2 multicore support in Trusted OS returned by MIGRATE_INFO_TYPE */95#define PSCI_0_2_TOS_UP_MIGRATE 096#define PSCI_0_2_TOS_UP_NO_MIGRATE 197#define PSCI_0_2_TOS_MP 298 99/* PSCI v1.1 reset type encoding for SYSTEM_RESET2 */100#define PSCI_1_1_RESET_TYPE_SYSTEM_WARM_RESET 0101#define PSCI_1_1_RESET_TYPE_VENDOR_START 0x80000000U102 103/* PSCI version decoding (independent of PSCI version) */104#define PSCI_VERSION_MAJOR_SHIFT 16105#define PSCI_VERSION_MINOR_MASK \106 ((1U << PSCI_VERSION_MAJOR_SHIFT) - 1)107#define PSCI_VERSION_MAJOR_MASK ~PSCI_VERSION_MINOR_MASK108#define PSCI_VERSION_MAJOR(ver) \109 (((ver) & PSCI_VERSION_MAJOR_MASK) >> PSCI_VERSION_MAJOR_SHIFT)110#define PSCI_VERSION_MINOR(ver) \111 ((ver) & PSCI_VERSION_MINOR_MASK)112#define PSCI_VERSION(maj, min) \113 ((((maj) << PSCI_VERSION_MAJOR_SHIFT) & PSCI_VERSION_MAJOR_MASK) | \114 ((min) & PSCI_VERSION_MINOR_MASK))115 116/* PSCI features decoding (>=1.0) */117#define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT 1118#define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_MASK \119 (0x1 << PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT)120 121#define PSCI_1_0_OS_INITIATED BIT(0)122#define PSCI_1_0_SUSPEND_MODE_PC 0123#define PSCI_1_0_SUSPEND_MODE_OSI 1124 125/* PSCI return values (inclusive of all PSCI versions) */126#define PSCI_RET_SUCCESS 0127#define PSCI_RET_NOT_SUPPORTED -1128#define PSCI_RET_INVALID_PARAMS -2129#define PSCI_RET_DENIED -3130#define PSCI_RET_ALREADY_ON -4131#define PSCI_RET_ON_PENDING -5132#define PSCI_RET_INTERNAL_FAILURE -6133#define PSCI_RET_NOT_PRESENT -7134#define PSCI_RET_DISABLED -8135#define PSCI_RET_INVALID_ADDRESS -9136 137#endif /* _UAPI_LINUX_PSCI_H */138