1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright (C) 2015 ARM Limited 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef __LINUX_PSCI_H 8*4882a593Smuzhiyun #define __LINUX_PSCI_H 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <linux/arm-smccc.h> 11*4882a593Smuzhiyun #include <linux/init.h> 12*4882a593Smuzhiyun #include <linux/types.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #define PSCI_POWER_STATE_TYPE_STANDBY 0 15*4882a593Smuzhiyun #define PSCI_POWER_STATE_TYPE_POWER_DOWN 1 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun bool psci_tos_resident_on(int cpu); 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun int psci_cpu_suspend_enter(u32 state); 20*4882a593Smuzhiyun bool psci_power_state_is_valid(u32 state); 21*4882a593Smuzhiyun int psci_set_osi_mode(bool enable); 22*4882a593Smuzhiyun bool psci_has_osi_support(void); 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun struct psci_operations { 25*4882a593Smuzhiyun u32 (*get_version)(void); 26*4882a593Smuzhiyun int (*cpu_suspend)(u32 state, unsigned long entry_point); 27*4882a593Smuzhiyun int (*cpu_off)(u32 state); 28*4882a593Smuzhiyun int (*cpu_on)(unsigned long cpuid, unsigned long entry_point); 29*4882a593Smuzhiyun int (*migrate)(unsigned long cpuid); 30*4882a593Smuzhiyun int (*affinity_info)(unsigned long target_affinity, 31*4882a593Smuzhiyun unsigned long lowest_affinity_level); 32*4882a593Smuzhiyun int (*migrate_info_type)(void); 33*4882a593Smuzhiyun }; 34*4882a593Smuzhiyun 35*4882a593Smuzhiyun extern struct psci_operations psci_ops; 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun struct psci_0_1_function_ids { 38*4882a593Smuzhiyun u32 cpu_suspend; 39*4882a593Smuzhiyun u32 cpu_on; 40*4882a593Smuzhiyun u32 cpu_off; 41*4882a593Smuzhiyun u32 migrate; 42*4882a593Smuzhiyun }; 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun struct psci_0_1_function_ids get_psci_0_1_function_ids(void); 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun #if defined(CONFIG_ARM_PSCI_FW) 47*4882a593Smuzhiyun int __init psci_dt_init(void); 48*4882a593Smuzhiyun #else psci_dt_init(void)49*4882a593Smuzhiyunstatic inline int psci_dt_init(void) { return 0; } 50*4882a593Smuzhiyun #endif 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun #if defined(CONFIG_ARM_PSCI_FW) && defined(CONFIG_ACPI) 53*4882a593Smuzhiyun int __init psci_acpi_init(void); 54*4882a593Smuzhiyun bool __init acpi_psci_present(void); 55*4882a593Smuzhiyun bool acpi_psci_use_hvc(void); 56*4882a593Smuzhiyun #else psci_acpi_init(void)57*4882a593Smuzhiyunstatic inline int psci_acpi_init(void) { return 0; } acpi_psci_present(void)58*4882a593Smuzhiyunstatic inline bool acpi_psci_present(void) { return false; } acpi_psci_use_hvc(void)59*4882a593Smuzhiyunstatic inline bool acpi_psci_use_hvc(void) {return false; } 60*4882a593Smuzhiyun #endif 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun #endif /* __LINUX_PSCI_H */ 63