mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-29 23:53:55 +08:00
607ca46e97
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/*
|
|
* pci.h
|
|
*
|
|
* PCI defines and function prototypes
|
|
* Copyright 1994, Drew Eckhardt
|
|
* Copyright 1997--1999 Martin Mares <mj@ucw.cz>
|
|
*
|
|
* For more information, please consult the following manuals (look at
|
|
* http://www.pcisig.com/ for how to get them):
|
|
*
|
|
* PCI BIOS Specification
|
|
* PCI Local Bus Specification
|
|
* PCI to PCI Bridge Specification
|
|
* PCI System Design Guide
|
|
*/
|
|
|
|
#ifndef _UAPILINUX_PCI_H
|
|
#define _UAPILINUX_PCI_H
|
|
|
|
#include <linux/pci_regs.h> /* The pci register defines */
|
|
|
|
/*
|
|
* The PCI interface treats multi-function devices as independent
|
|
* devices. The slot/function address of each device is encoded
|
|
* in a single byte as follows:
|
|
*
|
|
* 7:3 = slot
|
|
* 2:0 = function
|
|
*/
|
|
#define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07))
|
|
#define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f)
|
|
#define PCI_FUNC(devfn) ((devfn) & 0x07)
|
|
|
|
/* Ioctls for /proc/bus/pci/X/Y nodes. */
|
|
#define PCIIOC_BASE ('P' << 24 | 'C' << 16 | 'I' << 8)
|
|
#define PCIIOC_CONTROLLER (PCIIOC_BASE | 0x00) /* Get controller for PCI device. */
|
|
#define PCIIOC_MMAP_IS_IO (PCIIOC_BASE | 0x01) /* Set mmap state to I/O space. */
|
|
#define PCIIOC_MMAP_IS_MEM (PCIIOC_BASE | 0x02) /* Set mmap state to MEM space. */
|
|
#define PCIIOC_WRITE_COMBINE (PCIIOC_BASE | 0x03) /* Enable/disable write-combining. */
|
|
|
|
#endif /* _UAPILINUX_PCI_H */
|