?? xtalk.h
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/* * 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#if defined(_LANGUAGE_C) || defined(_LANGUAGE_C_PLUS_PLUS)/* * User-level device driver visible types */typedef char xwidgetnum_t; /* xtalk widget number (0..15) */#define XWIDGET_NONE -1typedef int xwidget_part_num_t; /* xtalk widget part number */#define XWIDGET_PART_NUM_NONE -1typedef int xwidget_rev_num_t; /* xtalk widget revision number */#define XWIDGET_REV_NUM_NONE -1typedef int xwidget_mfg_num_t; /* xtalk widget manufacturing ID */#define XWIDGET_MFG_NUM_NONE -1typedef 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 /* _LANGUAGE_C */#endif /* _ASM_XTALK_XTALK_H */
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