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Diffstat (limited to '')
-rw-r--r-- | arch/c6x/include/asm/timex.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/c6x/include/asm/timex.h b/arch/c6x/include/asm/timex.h new file mode 100644 index 000000000..f946ce297 --- /dev/null +++ b/arch/c6x/include/asm/timex.h @@ -0,0 +1,30 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Port on Texas Instruments TMS320C6x architecture + * + * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated + * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) + * + * Modified for 2.6.34: Mark Salter <msalter@redhat.com> + */ +#ifndef _ASM_C6X_TIMEX_H +#define _ASM_C6X_TIMEX_H + +#define CLOCK_TICK_RATE ((1000 * 1000000UL) / 6) + +/* 64-bit timestamp */ +typedef unsigned long long cycles_t; + +static inline cycles_t get_cycles(void) +{ + unsigned l, h; + + asm volatile (" dint\n" + " mvc .s2 TSCL,%0\n" + " mvc .s2 TSCH,%1\n" + " rint\n" + : "=b"(l), "=b"(h)); + return ((cycles_t)h << 32) | l; +} + +#endif /* _ASM_C6X_TIMEX_H */ |