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/* 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 */