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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 #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 */