diff options
| author | Aurelien Jacquiot <a-jacquiot@ti.com> | 2011-10-04 11:05:33 -0400 |
|---|---|---|
| committer | Mark Salter <msalter@redhat.com> | 2011-10-06 19:47:51 -0400 |
| commit | 546a39546c64ad7e73796c5508ef5487af42cae2 (patch) | |
| tree | 9ab7fb5512ac1a99ab29267482469dcd8a8252ff /arch/c6x/include | |
| parent | 03a347558749caaab482f34410ae5d27e893db89 (diff) | |
C6X: time management
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>
Diffstat (limited to 'arch/c6x/include')
| -rw-r--r-- | arch/c6x/include/asm/timer64.h | 6 | ||||
| -rw-r--r-- | arch/c6x/include/asm/timex.h | 33 |
2 files changed, 39 insertions, 0 deletions
diff --git a/arch/c6x/include/asm/timer64.h b/arch/c6x/include/asm/timer64.h new file mode 100644 index 00000000000..bbe27bb9887 --- /dev/null +++ b/arch/c6x/include/asm/timer64.h @@ -0,0 +1,6 @@ +#ifndef _C6X_TIMER64_H +#define _C6X_TIMER64_H + +extern void __init timer64_init(void); + +#endif /* _C6X_TIMER64_H */ diff --git a/arch/c6x/include/asm/timex.h b/arch/c6x/include/asm/timex.h new file mode 100644 index 00000000000..508c3ec971f --- /dev/null +++ b/arch/c6x/include/asm/timex.h @@ -0,0 +1,33 @@ +/* + * 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> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#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 */ |