54 lines
1.5 KiB
C
54 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
// Copyright (C) 2017 Arm Ltd.
|
|
#ifndef __ASM_SDEI_H
|
|
#define __ASM_SDEI_H
|
|
|
|
/* Values for sdei_exit_mode */
|
|
#define SDEI_EXIT_HVC 0
|
|
#define SDEI_EXIT_SMC 1
|
|
|
|
#define SDEI_STACK_SIZE IRQ_STACK_SIZE
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#include <linux/linkage.h>
|
|
#include <linux/preempt.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <asm/virt.h>
|
|
|
|
DECLARE_PER_CPU(struct sdei_registered_event *, sdei_active_normal_event);
|
|
DECLARE_PER_CPU(struct sdei_registered_event *, sdei_active_critical_event);
|
|
|
|
extern unsigned long sdei_exit_mode;
|
|
|
|
/* Software Delegated Exception entry point from firmware*/
|
|
asmlinkage void __sdei_asm_handler(unsigned long event_num, unsigned long arg,
|
|
unsigned long pc, unsigned long pstate);
|
|
|
|
/* and its CONFIG_UNMAP_KERNEL_AT_EL0 trampoline */
|
|
asmlinkage void __sdei_asm_entry_trampoline(unsigned long event_num,
|
|
unsigned long arg,
|
|
unsigned long pc,
|
|
unsigned long pstate);
|
|
|
|
/* Abort a running handler. Context is discarded. */
|
|
void __sdei_handler_abort(void);
|
|
|
|
/*
|
|
* The above entry point does the minimum to call C code. This function does
|
|
* anything else, before calling the driver.
|
|
*/
|
|
struct sdei_registered_event;
|
|
asmlinkage unsigned long __sdei_handler(struct pt_regs *regs,
|
|
struct sdei_registered_event *arg);
|
|
|
|
unsigned long do_sdei_event(struct pt_regs *regs,
|
|
struct sdei_registered_event *arg);
|
|
|
|
unsigned long sdei_arch_get_entry_point(int conduit);
|
|
#define sdei_arch_get_entry_point(x) sdei_arch_get_entry_point(x)
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* __ASM_SDEI_H */
|