/* * Copyright (C) 2013 - ARM Ltd * Author: Marc Zyngier * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see . */ #ifndef __ARM_PSCI_H__ #define __ARM_PSCI_H__ #define ARM_PSCI_VER_1_0 (0x00010000) #define ARM_PSCI_VER_0_2 (0x00000002) /* PSCI 0.1 interface */ #define ARM_PSCI_FN_BASE 0x95c1ba5e #define ARM_PSCI_FN(n) (ARM_PSCI_FN_BASE + (n)) #define ARM_PSCI_FN_CPU_SUSPEND ARM_PSCI_FN(0) #define ARM_PSCI_FN_CPU_OFF ARM_PSCI_FN(1) #define ARM_PSCI_FN_CPU_ON ARM_PSCI_FN(2) #define ARM_PSCI_FN_MIGRATE ARM_PSCI_FN(3) #define ARM_PSCI_RET_SUCCESS 0 #define ARM_PSCI_RET_NOT_SUPPORTED (-1) #define ARM_PSCI_RET_INVAL (-2) #define ARM_PSCI_RET_DENIED (-3) #define ARM_PSCI_RET_ALREADY_ON (-4) #define ARM_PSCI_RET_ON_PENDING (-5) #define ARM_PSCI_RET_INTERNAL_FAILURE (-6) #define ARM_PSCI_RET_NOT_PRESENT (-7) #define ARM_PSCI_RET_DISABLED (-8) #define ARM_PSCI_RET_INVALID_ADDRESS (-9) /* PSCI 0.2 interface */ #define ARM_PSCI_0_2_FN_BASE 0x84000000 #define ARM_PSCI_0_2_FN(n) (ARM_PSCI_0_2_FN_BASE + (n)) #define ARM_PSCI_0_2_FN64_BASE 0xC4000000 #define ARM_PSCI_0_2_FN64(n) (ARM_PSCI_0_2_FN64_BASE + (n)) #define ARM_PSCI_0_2_FN_PSCI_VERSION ARM_PSCI_0_2_FN(0) #define ARM_PSCI_0_2_FN_CPU_SUSPEND ARM_PSCI_0_2_FN(1) #define ARM_PSCI_0_2_FN_CPU_OFF ARM_PSCI_0_2_FN(2) #define ARM_PSCI_0_2_FN_CPU_ON ARM_PSCI_0_2_FN(3) #define ARM_PSCI_0_2_FN_AFFINITY_INFO ARM_PSCI_0_2_FN(4) #define ARM_PSCI_0_2_FN_MIGRATE ARM_PSCI_0_2_FN(5) #define ARM_PSCI_0_2_FN_MIGRATE_INFO_TYPE ARM_PSCI_0_2_FN(6) #define ARM_PSCI_0_2_FN_MIGRATE_INFO_UP_CPU ARM_PSCI_0_2_FN(7) #define ARM_PSCI_0_2_FN_SYSTEM_OFF ARM_PSCI_0_2_FN(8) #define ARM_PSCI_0_2_FN_SYSTEM_RESET ARM_PSCI_0_2_FN(9) #define ARM_PSCI_0_2_FN64_CPU_SUSPEND ARM_PSCI_0_2_FN64(1) #define ARM_PSCI_0_2_FN64_CPU_ON ARM_PSCI_0_2_FN64(3) #define ARM_PSCI_0_2_FN64_AFFINITY_INFO ARM_PSCI_0_2_FN64(4) #define ARM_PSCI_0_2_FN64_MIGRATE ARM_PSCI_0_2_FN64(5) #define ARM_PSCI_0_2_FN64_MIGRATE_INFO_UP_CPU ARM_PSCI_0_2_FN64(7) /* PSCI 1.0 interface */ #define ARM_PSCI_1_0_FN_PSCI_FEATURES ARM_PSCI_0_2_FN(10) #define ARM_PSCI_1_0_FN_CPU_FREEZE ARM_PSCI_0_2_FN(11) #define ARM_PSCI_1_0_FN_CPU_DEFAULT_SUSPEND ARM_PSCI_0_2_FN(12) #define ARM_PSCI_1_0_FN_NODE_HW_STATE ARM_PSCI_0_2_FN(13) #define ARM_PSCI_1_0_FN_SYSTEM_SUSPEND ARM_PSCI_0_2_FN(14) #define ARM_PSCI_1_0_FN_SET_SUSPEND_MODE ARM_PSCI_0_2_FN(15) #define ARM_PSCI_1_0_FN_STAT_RESIDENCY ARM_PSCI_0_2_FN(16) #define ARM_PSCI_1_0_FN_STAT_COUNT ARM_PSCI_0_2_FN(17) #define ARM_PSCI_1_0_FN64_CPU_DEFAULT_SUSPEND ARM_PSCI_0_2_FN64(12) #define ARM_PSCI_1_0_FN64_NODE_HW_STATE ARM_PSCI_0_2_FN64(13) #define ARM_PSCI_1_0_FN64_SYSTEM_SUSPEND ARM_PSCI_0_2_FN64(14) #define ARM_PSCI_1_0_FN64_STAT_RESIDENCY ARM_PSCI_0_2_FN64(16) #define ARM_PSCI_1_0_FN64_STAT_COUNT ARM_PSCI_0_2_FN64(17) /* PSCI affinity level state returned by AFFINITY_INFO */ #define PSCI_AFFINITY_LEVEL_ON 0 #define PSCI_AFFINITY_LEVEL_OFF 1 #define PSCI_AFFINITY_LEVEL_ON_PENDING 2 struct psci_ops { int (*cpu_suspend)(u32 power_state, unsigned long entry, u32 context_id); int (*cpu_off)(void); int (*cpu_on)(u32 cpu_id); int (*affinity_info)(u32 affinity, u32 lowest_affinity_level); int (*migrate)(u32 cpu_id); int (*migrate_info_type)(void); int (*migrate_info_up_cpu)(void); void (*system_off)(void); void (*system_reset)(void); }; #ifdef CONFIG_ARM_PSCI void psci_set_ops(struct psci_ops *ops); #else static inline void psci_set_ops(struct psci_ops *ops) { } #endif void psci_cpu_entry(void); #ifdef CONFIG_ARM_PSCI_DEBUG void psci_set_putc(void (*putcf)(void *ctx, int c), void *ctx); void psci_putc(char c); int psci_puts(const char *str); int psci_printf(const char *fmt, ...) __attribute__ ((format(__printf__, 1, 2))); #else static inline void psci_set_putc(void (*putcf)(void *ctx, int c), void *ctx) { } static inline void psci_putc(char c) { } static inline int psci_puts(const char *str) { return 0; } static inline int psci_printf(const char *fmt, ...) { return 0; } #endif int psci_get_cpu_id(void); #endif /* __ARM_PSCI_H__ */