arch/x86/include/asm/prom.h

   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 __ASSEMBLY__
  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
  22 extern int of_ioapic;
  23 extern u64 initial_dtb;
  24 extern void add_dtb(u64 data);
  25 void x86_of_pci_init(void);
  26 void x86_dtb_init(void);
  27 #else
  28 static inline void add_dtb(u64 data) { }
  29 static inline void x86_of_pci_init(void) { }
  30 static inline void x86_dtb_init(void) { }
  31 #define of_ioapic 0
  32 #endif
  33
  34 extern char cmd_line[COMMAND_LINE_SIZE];
  35
  36 #endif /* __ASSEMBLY__ */
  37 #endif