1#ifndef ASM_PCI_DIRECT_H 2#define ASM_PCI_DIRECT_H 1 3 4#include <linux/types.h> 5 6/* Direct PCI access. This is used for PCI accesses in early boot before 7 the PCI subsystem works. */ 8 9extern u32 read_pci_config(u8 bus, u8 slot, u8 func, u8 offset); 10extern u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset); 11extern u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset); 12extern void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val); 13extern void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val); 14 15extern int early_pci_allowed(void); 16 17#endif 18