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Many user space API headers are missing licensing information, which makes it hard for compliance tools to determine the correct license. By default are files without license information under the default license of the kernel, which is GPLV2. Marking them GPLV2 would exclude them from being included in non GPLV2 code, which is obviously not intended. The user space API headers fall under the syscall exception which is in the kernels COPYING file: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". otherwise syscall usage would not be possible. Update the files which contain no license information with an SPDX license identifier. The chosen identifier is 'GPL-2.0 WITH Linux-syscall-note' which is the officially assigned identifier for the Linux syscall exception. SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
110 lines
3.8 KiB
C
110 lines
3.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* ARM Power State and Coordination Interface (PSCI) header
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*
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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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*
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* Copyright (C) 2014 Linaro Ltd.
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* Author: Anup Patel <anup.patel@linaro.org>
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*/
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#ifndef _UAPI_LINUX_PSCI_H
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#define _UAPI_LINUX_PSCI_H
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/*
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* PSCI v0.1 interface
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*
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* The PSCI v0.1 function numbers are implementation defined.
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*
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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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*/
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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_FN64_SYSTEM_SUSPEND PSCI_0_2_FN64(14)
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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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/* 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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/* 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 /* _UAPI_LINUX_PSCI_H */
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