Release 4.14 arch/mips/include/asm/sn/io.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.
 *
 * Copyright (C) 2000, 2003 Ralf Baechle
 * Copyright (C) 2000 Silicon Graphics, Inc.
 */
#ifndef _ASM_SN_IO_H

#define _ASM_SN_IO_H

#if defined(CONFIG_SGI_IP27)
#include <asm/sn/sn0/hubio.h>
#endif



#define IIO_ITTE_BASE		0x400160 
/* base of translation table entries */

#define IIO_ITTE(bigwin)	(IIO_ITTE_BASE + 8*(bigwin))


#define IIO_ITTE_OFFSET_BITS	5	
/* size of offset field */

#define IIO_ITTE_OFFSET_MASK	((1<<IIO_ITTE_OFFSET_BITS)-1)

#define IIO_ITTE_OFFSET_SHIFT	0


#define IIO_ITTE_WIDGET_BITS	4	
/* size of widget field */

#define IIO_ITTE_WIDGET_MASK	((1<<IIO_ITTE_WIDGET_BITS)-1)

#define IIO_ITTE_WIDGET_SHIFT	8


#define IIO_ITTE_IOSP		1	
/* I/O Space bit */

#define IIO_ITTE_IOSP_MASK	1

#define IIO_ITTE_IOSP_SHIFT	12

#define HUB_PIO_MAP_TO_MEM	0

#define HUB_PIO_MAP_TO_IO	1


#define IIO_ITTE_INVALID_WIDGET 3	
/* an invalid widget  */


#define IIO_ITTE_PUT(nasid, bigwin, io_or_mem, widget, addr) \
	REMOTE_HUB_S((nasid), IIO_ITTE(bigwin), \
                (((((addr) >> BWIN_SIZE_BITS) & \
                   IIO_ITTE_OFFSET_MASK) << IIO_ITTE_OFFSET_SHIFT) | \
                (io_or_mem << IIO_ITTE_IOSP_SHIFT) | \
                (((widget) & IIO_ITTE_WIDGET_MASK) << IIO_ITTE_WIDGET_SHIFT)))


#define IIO_ITTE_DISABLE(nasid, bigwin) \
	IIO_ITTE_PUT((nasid), HUB_PIO_MAP_TO_MEM, \
                     (bigwin), IIO_ITTE_INVALID_WIDGET, 0)


#define IIO_ITTE_GET(nasid, bigwin) REMOTE_HUB_ADDR((nasid), IIO_ITTE(bigwin))

/*
 * Macro which takes the widget number, and returns the
 * IO PRB address of that widget.
 * value _x is expected to be a widget number in the range
 * 0, 8 - 0xF
 */

#define IIO_IOPRB(_x)	(IIO_IOPRB_0 + ( ( (_x) < HUB_WIDGET_ID_MIN ? \
                        (_x) : \
                        (_x) - (HUB_WIDGET_ID_MIN-1)) << 3) )

#endif /* _ASM_SN_IO_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Linus Torvalds (pre-git)
115
89.84%
2
40.00%
Andrew Morton
11
8.59%
1
20.00%
Ralf Bächle
2
1.56%
2
40.00%
Total
128
100.00%
5
100.00%
Directory: arch/mips/include/asm/sn

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