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