mirror of
https://github.com/torvalds/linux.git
synced 2024-12-21 10:31:54 +00:00
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
|
/*
|
||
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
||
|
|
* License. See the file "COPYING" in the main directory of this archive
|
||
|
|
* for more details.
|
||
|
|
*
|
||
|
|
* xtalk.h -- platform-independent crosstalk interface, derived from
|
||
|
|
* IRIX <sys/PCI/bridge.h>, revision 1.38.
|
||
|
|
*
|
||
|
|
* Copyright (C) 1995 - 1997, 1999 Silcon Graphics, Inc.
|
||
|
|
* Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
|
||
|
|
*/
|
||
|
|
#ifndef _ASM_XTALK_XTALK_H
|
||
|
|
#define _ASM_XTALK_XTALK_H
|
||
|
|
|
||
|
|
#ifndef __ASSEMBLY__
|
||
|
|
/*
|
||
|
|
* User-level device driver visible types
|
||
|
|
*/
|
||
|
|
typedef char xwidgetnum_t; /* xtalk widget number (0..15) */
|
||
|
|
|
||
|
|
#define XWIDGET_NONE -1
|
||
|
|
|
||
|
|
typedef int xwidget_part_num_t; /* xtalk widget part number */
|
||
|
|
|
||
|
|
#define XWIDGET_PART_NUM_NONE -1
|
||
|
|
|
||
|
|
typedef int xwidget_rev_num_t; /* xtalk widget revision number */
|
||
|
|
|
||
|
|
#define XWIDGET_REV_NUM_NONE -1
|
||
|
|
|
||
|
|
typedef int xwidget_mfg_num_t; /* xtalk widget manufacturing ID */
|
||
|
|
|
||
|
|
#define XWIDGET_MFG_NUM_NONE -1
|
||
|
|
|
||
|
|
typedef struct xtalk_piomap_s *xtalk_piomap_t;
|
||
|
|
|
||
|
|
/* It is often convenient to fold the XIO target port
|
||
|
|
* number into the XIO address.
|
||
|
|
*/
|
||
|
|
#define XIO_NOWHERE (0xFFFFFFFFFFFFFFFFull)
|
||
|
|
#define XIO_ADDR_BITS (0x0000FFFFFFFFFFFFull)
|
||
|
|
#define XIO_PORT_BITS (0xF000000000000000ull)
|
||
|
|
#define XIO_PORT_SHIFT (60)
|
||
|
|
|
||
|
|
#define XIO_PACKED(x) (((x)&XIO_PORT_BITS) != 0)
|
||
|
|
#define XIO_ADDR(x) ((x)&XIO_ADDR_BITS)
|
||
|
|
#define XIO_PORT(x) ((xwidgetnum_t)(((x)&XIO_PORT_BITS) >> XIO_PORT_SHIFT))
|
||
|
|
#define XIO_PACK(p,o) ((((uint64_t)(p))<<XIO_PORT_SHIFT) | ((o)&XIO_ADDR_BITS))
|
||
|
|
|
||
|
|
#endif /* !__ASSEMBLY__ */
|
||
|
|
|
||
|
|
#endif /* _ASM_XTALK_XTALK_H */
|