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