19 lines
740 B
C
19 lines
740 B
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
#ifndef _ASM_X86_PCI_DIRECT_H
|
||
|
|
#define _ASM_X86_PCI_DIRECT_H
|
||
|
|
|
||
|
|
#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 void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val);
|
||
|
|
|
||
|
|
extern int early_pci_allowed(void);
|
||
|
|
#endif /* _ASM_X86_PCI_DIRECT_H */
|