mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-29 23:53:32 +00:00
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 */
|