| /* |
| * 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 */ |
