#ifndef ASM_PCI_DIRECT_H#define ASM_PCI_DIRECT_H 1#include <xen/types.h>#include <asm/io.h>/* Direct PCI access. This is used for PCI accesses in early boot before   the PCI subsystem works. */#define PDprintk(x...)static inline u32 read_pci_config(u8 bus, u8 slot, u8 func, u8 offset){    u32 v;    outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);    v = inl(0xcfc);    if (v != 0xffffffff)        PDprintk("%x reading 4 from %x: %x\n", slot, offset, v);    return v;}static inline u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset){    u8 v;    outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);    v = inb(0xcfc + (offset&3));    PDprintk("%x reading 1 from %x: %x\n", slot, offset, v);    return v;}static inline u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset){    u16 v;    outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);    v = inw(0xcfc + (offset&2));    PDprintk("%x reading 2 from %x: %x\n", slot, offset, v);    return v;}static inline void write_pci_config(    u8 bus, u8 slot, u8 func, u8 offset, u32 val){    PDprintk("%x writing to %x: %x\n", slot, offset, val);    outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);    outl(val, 0xcfc);}#endif