/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (c) 2017 Red Hat Inc
 *
 * Authors:
 *  David Hildenbrand <david@redhat.com>
 */
#ifndef _ASMS390X_IRQ_H_
#define _ASMS390X_IRQ_H_
#include <asm/arch_def.h>

#define EXT_IRQ_EMERGENCY_SIG	0x1201
#define EXT_IRQ_EXTERNAL_CALL	0x1202
#define EXT_IRQ_SERVICE_SIG	0x2401

void register_pgm_cleanup_func(void (*f)(void));
void handle_pgm_int(struct stack_frame_int *stack);
void handle_ext_int(struct stack_frame_int *stack);
void handle_mcck_int(void);
void handle_io_int(void);
void handle_svc_int(void);
void expect_pgm_int(void);
void expect_ext_int(void);
uint16_t clear_pgm_int(void);
void check_pgm_int_code(uint16_t code);

/* Activate low-address protection */
static inline void low_prot_enable(void)
{
	ctl_set_bit(0, CTL0_LOW_ADDR_PROT);
}

/* Disable low-address protection */
static inline void low_prot_disable(void)
{
	ctl_clear_bit(0, CTL0_LOW_ADDR_PROT);
}

#endif