| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ | |
| /* | |
| * 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 */ |