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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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* ARM Power State and Coordination Interface (PSCI) header

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* This header holds common PSCI defines and macros shared

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* by: ARM kernel, ARM64 kernel, KVM ARM/ARM64 and user space.

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* Author: Anup Patel <anup.patel@linaro.org>

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#ifndef _LINUX_PSCI_H

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#define _LINUX_PSCI_H

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* PSCI v0.1 interface

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* The PSCI v0.1 function numbers are implementation defined.

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* Only PSCI return values such as: SUCCESS, NOT_SUPPORTED,

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* INVALID_PARAMS, and DENIED defined below are applicable

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* to PSCI v0.1.

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/* PSCI v0.2 interface */

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#define PSCI_0_2_FN_BASE 0x84000000

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#define PSCI_0_2_FN(n) (PSCI_0_2_FN_BASE + (n))

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#define PSCI_0_2_64BIT 0x40000000

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#define PSCI_0_2_FN64_BASE \

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(PSCI_0_2_FN_BASE + PSCI_0_2_64BIT)

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#define PSCI_0_2_FN64(n) (PSCI_0_2_FN64_BASE + (n))

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#define PSCI_0_2_FN_PSCI_VERSION PSCI_0_2_FN(0)

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#define PSCI_0_2_FN_CPU_SUSPEND PSCI_0_2_FN(1)

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#define PSCI_0_2_FN_CPU_OFF PSCI_0_2_FN(2)

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#define PSCI_0_2_FN_CPU_ON PSCI_0_2_FN(3)

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#define PSCI_0_2_FN_AFFINITY_INFO PSCI_0_2_FN(4)

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#define PSCI_0_2_FN_MIGRATE PSCI_0_2_FN(5)

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#define PSCI_0_2_FN_MIGRATE_INFO_TYPE PSCI_0_2_FN(6)

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#define PSCI_0_2_FN_MIGRATE_INFO_UP_CPU PSCI_0_2_FN(7)

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#define PSCI_0_2_FN_SYSTEM_OFF PSCI_0_2_FN(8)

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#define PSCI_0_2_FN_SYSTEM_RESET PSCI_0_2_FN(9)

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#define PSCI_0_2_FN64_CPU_SUSPEND PSCI_0_2_FN64(1)

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#define PSCI_0_2_FN64_CPU_ON PSCI_0_2_FN64(3)

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#define PSCI_0_2_FN64_AFFINITY_INFO PSCI_0_2_FN64(4)

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#define PSCI_0_2_FN64_MIGRATE PSCI_0_2_FN64(5)

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#define PSCI_0_2_FN64_MIGRATE_INFO_UP_CPU PSCI_0_2_FN64(7)

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#define PSCI_1_0_FN_PSCI_FEATURES PSCI_0_2_FN(10)

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#define PSCI_1_0_FN_SYSTEM_SUSPEND PSCI_0_2_FN(14)

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#define PSCI_1_0_FN_SET_SUSPEND_MODE PSCI_0_2_FN(15)

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#define PSCI_1_1_FN_SYSTEM_RESET2 PSCI_0_2_FN(18)

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#define PSCI_1_0_FN64_SYSTEM_SUSPEND PSCI_0_2_FN64(14)

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#define PSCI_1_1_FN64_SYSTEM_RESET2 PSCI_0_2_FN64(18)

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/* PSCI v0.2 power state encoding for CPU_SUSPEND function */

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#define PSCI_0_2_POWER_STATE_ID_MASK 0xffff

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#define PSCI_0_2_POWER_STATE_ID_SHIFT 0

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#define PSCI_0_2_POWER_STATE_TYPE_SHIFT 16

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#define PSCI_0_2_POWER_STATE_TYPE_MASK \

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(0x1 << PSCI_0_2_POWER_STATE_TYPE_SHIFT)

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#define PSCI_0_2_POWER_STATE_AFFL_SHIFT 24

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#define PSCI_0_2_POWER_STATE_AFFL_MASK \

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(0x3 << PSCI_0_2_POWER_STATE_AFFL_SHIFT)

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/* PSCI extended power state encoding for CPU_SUSPEND function */

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#define PSCI_1_0_EXT_POWER_STATE_ID_MASK 0xfffffff

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#define PSCI_1_0_EXT_POWER_STATE_ID_SHIFT 0

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#define PSCI_1_0_EXT_POWER_STATE_TYPE_SHIFT 30

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#define PSCI_1_0_EXT_POWER_STATE_TYPE_MASK \

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(0x1 << PSCI_1_0_EXT_POWER_STATE_TYPE_SHIFT)

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/* PSCI v0.2 affinity level state returned by AFFINITY_INFO */

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#define PSCI_0_2_AFFINITY_LEVEL_ON 0

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#define PSCI_0_2_AFFINITY_LEVEL_OFF 1

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#define PSCI_0_2_AFFINITY_LEVEL_ON_PENDING 2

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/* PSCI v0.2 multicore support in Trusted OS returned by MIGRATE_INFO_TYPE */

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#define PSCI_0_2_TOS_UP_MIGRATE 0

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#define PSCI_0_2_TOS_UP_NO_MIGRATE 1

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#define PSCI_0_2_TOS_MP 2

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/* PSCI version decoding (independent of PSCI version) */

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#define PSCI_VERSION_MAJOR_SHIFT 16

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#define PSCI_VERSION_MINOR_MASK \

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((1U << PSCI_VERSION_MAJOR_SHIFT) - 1)

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#define PSCI_VERSION_MAJOR_MASK ~PSCI_VERSION_MINOR_MASK

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#define PSCI_VERSION_MAJOR(ver) \

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(((ver) & PSCI_VERSION_MAJOR_MASK) >> PSCI_VERSION_MAJOR_SHIFT)

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#define PSCI_VERSION_MINOR(ver) \

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((ver) & PSCI_VERSION_MINOR_MASK)

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#define PSCI_VERSION(maj, min) \

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((((maj) << PSCI_VERSION_MAJOR_SHIFT) & PSCI_VERSION_MAJOR_MASK) | \

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((min) & PSCI_VERSION_MINOR_MASK))

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/* PSCI features decoding (>=1.0) */

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#define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT 1

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#define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_MASK \

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(0x1 << PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT)

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#define PSCI_1_0_OS_INITIATED BIT(0)

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#define PSCI_1_0_SUSPEND_MODE_PC 0

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#define PSCI_1_0_SUSPEND_MODE_OSI 1

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/* PSCI return values (inclusive of all PSCI versions) */

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#define PSCI_RET_SUCCESS 0

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#define PSCI_RET_NOT_SUPPORTED -1

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#define PSCI_RET_INVALID_PARAMS -2

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#define PSCI_RET_DENIED -3

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#define PSCI_RET_ALREADY_ON -4

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#define PSCI_RET_ON_PENDING -5

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#define PSCI_RET_INTERNAL_FAILURE -6

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#define PSCI_RET_NOT_PRESENT -7

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#define PSCI_RET_DISABLED -8

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#define PSCI_RET_INVALID_ADDRESS -9

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#endif /* _LINUX_PSCI_H */

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