mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-04 01:49:36 +00:00
![Sudeep Holla](/assets/img/avatar_default.png)
In order to add newer SMCCC v1.1+ functionality and to avoid cluttering PSCI firmware driver with SMCCC bits, let us move the SMCCC specific details under drivers/firmware/smccc/smccc.c We can also drop conduit and smccc_version from psci_operations structure as SMCCC was the sole user and now it maintains those. No functionality change in this patch though. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Tested-by: Etienne Carriere <etienne.carriere@st.com> Reviewed-by: Etienne Carriere <etienne.carriere@st.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20200518091222.27467-6-sudeep.holla@arm.com Signed-off-by: Will Deacon <will@kernel.org>
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
*
|
|
* Copyright (C) 2015 ARM Limited
|
|
*/
|
|
|
|
#ifndef __LINUX_PSCI_H
|
|
#define __LINUX_PSCI_H
|
|
|
|
#include <linux/arm-smccc.h>
|
|
#include <linux/init.h>
|
|
#include <linux/types.h>
|
|
|
|
#define PSCI_POWER_STATE_TYPE_STANDBY 0
|
|
#define PSCI_POWER_STATE_TYPE_POWER_DOWN 1
|
|
|
|
bool psci_tos_resident_on(int cpu);
|
|
|
|
int psci_cpu_suspend_enter(u32 state);
|
|
bool psci_power_state_is_valid(u32 state);
|
|
int psci_set_osi_mode(void);
|
|
bool psci_has_osi_support(void);
|
|
|
|
struct psci_operations {
|
|
u32 (*get_version)(void);
|
|
int (*cpu_suspend)(u32 state, unsigned long entry_point);
|
|
int (*cpu_off)(u32 state);
|
|
int (*cpu_on)(unsigned long cpuid, unsigned long entry_point);
|
|
int (*migrate)(unsigned long cpuid);
|
|
int (*affinity_info)(unsigned long target_affinity,
|
|
unsigned long lowest_affinity_level);
|
|
int (*migrate_info_type)(void);
|
|
};
|
|
|
|
extern struct psci_operations psci_ops;
|
|
|
|
#if defined(CONFIG_ARM_PSCI_FW)
|
|
int __init psci_dt_init(void);
|
|
#else
|
|
static inline int psci_dt_init(void) { return 0; }
|
|
#endif
|
|
|
|
#if defined(CONFIG_ARM_PSCI_FW) && defined(CONFIG_ACPI)
|
|
int __init psci_acpi_init(void);
|
|
bool __init acpi_psci_present(void);
|
|
bool acpi_psci_use_hvc(void);
|
|
#else
|
|
static inline int psci_acpi_init(void) { return 0; }
|
|
static inline bool acpi_psci_present(void) { return false; }
|
|
static inline bool acpi_psci_use_hvc(void) {return false; }
|
|
#endif
|
|
|
|
#endif /* __LINUX_PSCI_H */
|