patch-2.4.22 linux-2.4.22/include/asm-ia64/sn/hires_clock.h

• Lines: 53
• Date: 1969-12-31 16:00:00.000000000 -0800
• Orig file: linux-2.4.21/include/asm-ia64/sn/hires_clock.h
• Orig date: 2003-06-13 07:51:38.000000000 -0700

diff -urN linux-2.4.21/include/asm-ia64/sn/hires_clock.h linux-2.4.22/include/asm-ia64/sn/hires_clock.h
@@ -1,52 +0,0 @@
-/*
- * 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) 2001-2002 Silicon Graphics, Inc. All rights reserved.
- *
- * SGI Hi Resolution Clock
- *
- * SGI SN platforms provide a high resolution clock that is
- * synchronized across all nodes. The clock can be memory mapped
- * and directly read from user space.
- *
- * Access to the clock is thru the following:
- *       (error checking not shown)
- *
- * (Note: should library routines be provided to encapsulate this??)
- *
- *	int		fd:
- *	volatile long	*clk;
- *
- *	fd = open (HIRES_FULLNAME, O_RDONLY);
- *	clk = mmap(0, getpagesize(), PROT_READ, MAP_SHARED, fd, 0);
- *	clk += ioctl(fd, HIRES_IOCQGETOFFSET, 0);
- *
- * At this point, clk is a pointer to the high resolution clock.
- *
- * The clock period can be obtained via:
- *
- *	long	picosec_per_tick;
- *	picosec_per_tick = ioctl(fd, HIRES_IOCQGETPICOSEC, 0);
- */
-
-#ifndef _ASM_IA64_SN_HIRES_CLOCK_H
-#define _ASM_IA64_SN_HIRES_CLOCK_H
-
-
-#define HIRES_BASENAME	"sgi_hires_clock"
-#define HIRES_FULLNAME  "/dev/sgi_hires_clock"
-#define HIRES_IOC_BASE	's'
-
-
-/* Get page offset of hires timer */
-#define HIRES_IOCQGETOFFSET	_IO( HIRES_IOC_BASE, 0 )
-
-/* get clock period in picoseconds per tick */
-#define HIRES_IOCQGETPICOSEC	_IO( HIRES_IOC_BASE, 1 )
-
-/* get number of significant bits in clock counter */
-#define HIRES_IOCQGETCLOCKBITS	_IO( HIRES_IOC_BASE, 2 )
-
-#endif /* _ASM_IA64_SN_HIRES_CLOCK_H */