2023-08-30 17:31:07 +02:00
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/* SPDX-License-Identifier: GPL-2.0 */
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// Copyright (C) 2017 Arm Ltd.
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#ifndef __ASM_SDEI_H
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#define __ASM_SDEI_H
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/* Values for sdei_exit_mode */
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#define SDEI_EXIT_HVC 0
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#define SDEI_EXIT_SMC 1
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#define SDEI_STACK_SIZE IRQ_STACK_SIZE
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#ifndef __ASSEMBLY__
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#include <linux/linkage.h>
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#include <linux/preempt.h>
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#include <linux/types.h>
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#include <asm/virt.h>
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2023-10-24 12:59:35 +02:00
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DECLARE_PER_CPU(struct sdei_registered_event *, sdei_active_normal_event);
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DECLARE_PER_CPU(struct sdei_registered_event *, sdei_active_critical_event);
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2023-08-30 17:31:07 +02:00
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extern unsigned long sdei_exit_mode;
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/* Software Delegated Exception entry point from firmware*/
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asmlinkage void __sdei_asm_handler(unsigned long event_num, unsigned long arg,
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unsigned long pc, unsigned long pstate);
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/* and its CONFIG_UNMAP_KERNEL_AT_EL0 trampoline */
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asmlinkage void __sdei_asm_entry_trampoline(unsigned long event_num,
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unsigned long arg,
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unsigned long pc,
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unsigned long pstate);
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2023-10-24 12:59:35 +02:00
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/* Abort a running handler. Context is discarded. */
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void __sdei_handler_abort(void);
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2023-08-30 17:31:07 +02:00
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/*
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* The above entry point does the minimum to call C code. This function does
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* anything else, before calling the driver.
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*/
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struct sdei_registered_event;
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asmlinkage unsigned long __sdei_handler(struct pt_regs *regs,
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struct sdei_registered_event *arg);
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unsigned long do_sdei_event(struct pt_regs *regs,
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struct sdei_registered_event *arg);
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unsigned long sdei_arch_get_entry_point(int conduit);
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#define sdei_arch_get_entry_point(x) sdei_arch_get_entry_point(x)
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#endif /* __ASSEMBLY__ */
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#endif /* __ASM_SDEI_H */
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