1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * Definitions for Device tree / OpenFirmware handling on X86
4 *
5 * based on arch/powerpc/include/asm/prom.h which is
6 * Copyright (C) 1996-2005 Paul Mackerras.
7 */
8
9#ifndef _ASM_X86_PROM_H
10#define _ASM_X86_PROM_H
11#ifndef __ASSEMBLER__
12
13#include <linux/of.h>
14#include <linux/types.h>
15#include <linux/pci.h>
16
17#include <asm/irq.h>
18#include <linux/atomic.h>
19#include <asm/setup.h>
20
21#ifdef CONFIG_OF
22extern int of_ioapic;
23extern u64 initial_dtb;
24extern void add_dtb(u64 data);
25void x86_of_pci_init(void);
26void x86_flattree_get_config(void);
27#else
28static inline void add_dtb(u64 data) { }
29static inline void x86_of_pci_init(void) { }
30static inline void x86_flattree_get_config(void) { }
31#define of_ioapic 0
32#endif
33
34extern char cmd_line[COMMAND_LINE_SIZE];
35
36#endif /* __ASSEMBLER__ */
37#endif
38

source code of linux/arch/x86/include/asm/prom.h