diff options
| author | Andrew Waterman <waterman@eecs.berkeley.edu> | 2014-09-11 13:37:51 -0700 |
|---|---|---|
| committer | Andrew Waterman <waterman@eecs.berkeley.edu> | 2014-09-11 13:37:51 -0700 |
| commit | 82b6ccde8f4e3d48d1c358275271e49881e56cf7 (patch) | |
| tree | c5dbfa5dec2c28185f77e98124f483f79a9e6734 /linux-headers/include/linux/pci.h | |
| parent | 7ce82261f5b2ca8ba4835b0a73124ca25fbdd2db (diff) | |
| download | riscv-gnu-toolchain-82b6ccde8f4e3d48d1c358275271e49881e56cf7.zip riscv-gnu-toolchain-82b6ccde8f4e3d48d1c358275271e49881e56cf7.tar.gz riscv-gnu-toolchain-82b6ccde8f4e3d48d1c358275271e49881e56cf7.tar.bz2 | |
glibc: initial port of glibc 2.20
Diffstat (limited to 'linux-headers/include/linux/pci.h')
| -rw-r--r-- | linux-headers/include/linux/pci.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/linux-headers/include/linux/pci.h b/linux-headers/include/linux/pci.h new file mode 100644 index 0000000..a5bb5c7 --- /dev/null +++ b/linux-headers/include/linux/pci.h @@ -0,0 +1,41 @@ +/* + * 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 LINUX_PCI_H +#define LINUX_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 /* LINUX_PCI_H */ |