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546a39546c
Original port to early 2.6 kernel using TI COFF toolchain. Brought up to date by Mark Salter <msalter@redhat.com> Signed-off-by: Aurelien Jacquiot <a-jacquiot@ti.com> Signed-off-by: Mark Salter <msalter@redhat.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
34 lines
867 B
C
34 lines
867 B
C
/*
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* Port on Texas Instruments TMS320C6x architecture
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*
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* Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
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* Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
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*
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* Modified for 2.6.34: Mark Salter <msalter@redhat.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _ASM_C6X_TIMEX_H
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#define _ASM_C6X_TIMEX_H
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#define CLOCK_TICK_RATE ((1000 * 1000000UL) / 6)
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/* 64-bit timestamp */
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typedef unsigned long long cycles_t;
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static inline cycles_t get_cycles(void)
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{
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unsigned l, h;
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asm volatile (" dint\n"
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" mvc .s2 TSCL,%0\n"
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" mvc .s2 TSCH,%1\n"
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" rint\n"
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: "=b"(l), "=b"(h));
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return ((cycles_t)h << 32) | l;
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}
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#endif /* _ASM_C6X_TIMEX_H */
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