2 * Definitions for Device tree / OpenFirmware handling on X86
4 * based on arch/powerpc/include/asm/prom.h which is
5 * Copyright (C) 1996-2005 Paul Mackerras.
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
13 #ifndef _ASM_X86_PROM_H
14 #define _ASM_X86_PROM_H
18 #include <linux/types.h>
19 #include <linux/pci.h>
22 #include <asm/atomic.h>
23 #include <asm/setup.h>
24 #include <asm/irq_controller.h>
28 extern u64 initial_dtb;
29 extern void add_dtb(u64 data);
30 extern void x86_add_irq_domains(void);
31 void __cpuinit x86_of_pci_init(void);
32 void x86_dtb_init(void);
34 static inline struct device_node *pci_device_to_OF_node(struct pci_dev *pdev)
36 return pdev ? pdev->dev.of_node : NULL;
39 static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus)
41 return pci_device_to_OF_node(bus->self);
45 static inline void add_dtb(u64 data) { }
46 static inline void x86_add_irq_domains(void) { }
47 static inline void x86_of_pci_init(void) { }
48 static inline void x86_dtb_init(void) { }
52 extern char cmd_line[COMMAND_LINE_SIZE];
54 #define pci_address_to_pio pci_address_to_pio
55 unsigned long pci_address_to_pio(phys_addr_t addr);
58 * irq_dispose_mapping - Unmap an interrupt
59 * @virq: linux virq number of the interrupt to unmap
61 * FIXME: We really should implement proper virq handling like power,
62 * but that's going to be major surgery.
64 static inline void irq_dispose_mapping(unsigned int virq) { }
66 #define HAVE_ARCH_DEVTREE_FIXUPS
68 #endif /* __ASSEMBLY__ */