This commit adds the psci.h header file from Linux kernel which contains definitions related to the PSCI interface provided by firmware Signed-off-by: Sergey Temerkhanov <s.temerkhanov@gmail.com> Signed-off-by: Radha Mohan Chintakuntla <rchintakuntla@cavium.com>master
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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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/* 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 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 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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#endif /* _UAPI_LINUX_PSCI_H */ |
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