cregit-Linux how code gets into the kernel

Release 4.14 arch/mips/include/asm/xtalk/xtalk.h

/*
 * 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))

#ifdef CONFIG_PCI
extern int bridge_probe(nasid_t nasid, int widget, int masterwid);
#else

static inline int bridge_probe(nasid_t nasid, int widget, int masterwid) { return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ralf Bächle19100.00%1100.00%
Total19100.00%1100.00%

#endif #endif /* !__ASSEMBLY__ */ #endif /* _ASM_XTALK_XTALK_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)10068.49%120.00%
Ralf Bächle4530.82%360.00%
Linus Torvalds10.68%120.00%
Total146100.00%5100.00%
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