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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 ([email protected])
- */
- #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 */
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