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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [include/] [asm-mips/] [timex.h] - Rev 1765
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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. * * Copyright (C) 1998, 1999, 2003 by Ralf Baechle * * FIXME: For some of the supported machines this is dead wrong. */ #ifndef _ASM_TIMEX_H #define _ASM_TIMEX_H #include <asm/mipsregs.h> /* * Standard way to access the cycle counter. * Currently only used on SMP for scheduling. * * Only the low 32 bits are available as a continuously counting entity. * But this only means we'll force a reschedule every 8 seconds or so, * which isn't an evil thing. * * We know that all SMP capable CPUs have cycle counters. */ typedef unsigned int cycles_t; extern cycles_t cacheflush_time; static inline cycles_t get_cycles (void) { return read_c0_count(); } #define vxtime_lock() do {} while (0) #define vxtime_unlock() do {} while (0) #endif /* _ASM_TIMEX_H */