projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 607ca46e DH |
1 | /* |
| 2 | * pci.h | |
| 3 | * | |
| 4 | * PCI defines and function prototypes | |
| 5 | * Copyright 1994, Drew Eckhardt | |
| 6 | * Copyright 1997--1999 Martin Mares <mj@ucw.cz> | |
| 7 | * | |
| 8 | * For more information, please consult the following manuals (look at | |
| 9 | * http://www.pcisig.com/ for how to get them): | |
| 10 | * | |
| 11 | * PCI BIOS Specification | |
| 12 | * PCI Local Bus Specification | |
| 13 | * PCI to PCI Bridge Specification | |
| 14 | * PCI System Design Guide | |
| 15 | */ | |
| 16 | ||
| 17 | #ifndef _UAPILINUX_PCI_H | |
| 18 | #define _UAPILINUX_PCI_H | |
| 19 | ||
| 20 | #include <linux/pci_regs.h> /* The pci register defines */ | |
| 21 | ||
| 22 | /* | |
| 23 | * The PCI interface treats multi-function devices as independent | |
| 24 | * devices. The slot/function address of each device is encoded | |
| 25 | * in a single byte as follows: | |
| 26 | * | |
| 27 | * 7:3 = slot | |
| 28 | * 2:0 = function | |
| 29 | */ | |
| 30 | #define PCI_DEVFN(slot, func) ((((slot) & 0x1f) << 3) | ((func) & 0x07)) | |
| 31 | #define PCI_SLOT(devfn) (((devfn) >> 3) & 0x1f) | |
| 32 | #define PCI_FUNC(devfn) ((devfn) & 0x07) | |
| 33 | ||
| 34 | /* Ioctls for /proc/bus/pci/X/Y nodes. */ | |
| 35 | #define PCIIOC_BASE ('P' << 24 | 'C' << 16 | 'I' << 8) | |
| 36 | #define PCIIOC_CONTROLLER (PCIIOC_BASE | 0x00) /* Get controller for PCI device. */ | |
| 37 | #define PCIIOC_MMAP_IS_IO (PCIIOC_BASE | 0x01) /* Set mmap state to I/O space. */ | |
| 38 | #define PCIIOC_MMAP_IS_MEM (PCIIOC_BASE | 0x02) /* Set mmap state to MEM space. */ | |
| 39 | #define PCIIOC_WRITE_COMBINE (PCIIOC_BASE | 0x03) /* Enable/disable write-combining. */ | |
| 40 | ||
| 41 | #endif /* _UAPILINUX_PCI_H */ |