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/* 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_SYSTEM_SUSPEND PSCI_0_2_FN(14)
#define PSCI_1_0_FN_SET_SUSPEND_MODE PSCI_0_2_FN(15)
#define PSCI_1_1_FN_SYSTEM_RESET2 PSCI_0_2_FN(18)
#define PSCI_1_0_FN64_SYSTEM_SUSPEND PSCI_0_2_FN64(14)
#define PSCI_1_1_FN64_SYSTEM_RESET2 PSCI_0_2_FN64(18)
/* 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 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 */
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