mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-17 16:14:25 +08:00
e3f2baebf4
Allows us to dump PCI space before any kernel changes have been made. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
22 lines
810 B
C
22 lines
810 B
C
#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 void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val);
|
|
|
|
extern int early_pci_allowed(void);
|
|
|
|
extern unsigned int pci_early_dump_regs;
|
|
extern void early_dump_pci_device(u8 bus, u8 slot, u8 func);
|
|
extern void early_dump_pci_devices(void);
|
|
#endif
|