| Aurelien Jacquiot | 546a395 | 2011-10-04 11:05:33 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Port on Texas Instruments TMS320C6x architecture |
| 3 | * |
| 4 | * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated |
| 5 | * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) |
| 6 | * |
| 7 | * Modified for 2.6.34: Mark Salter <msalter@redhat.com> |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License version 2 as |
| 11 | * published by the Free Software Foundation. |
| 12 | */ |
| 13 | #ifndef _ASM_C6X_TIMEX_H |
| 14 | #define _ASM_C6X_TIMEX_H |
| 15 | |
| 16 | #define CLOCK_TICK_RATE ((1000 * 1000000UL) / 6) |
| 17 | |
| 18 | /* 64-bit timestamp */ |
| 19 | typedef unsigned long long cycles_t; |
| 20 | |
| 21 | static inline cycles_t get_cycles(void) |
| 22 | { |
| 23 | unsigned l, h; |
| 24 | |
| 25 | asm volatile (" dint\n" |
| 26 | " mvc .s2 TSCL,%0\n" |
| 27 | " mvc .s2 TSCH,%1\n" |
| 28 | " rint\n" |
| 29 | : "=b"(l), "=b"(h)); |
| 30 | return ((cycles_t)h << 32) | l; |
| 31 | } |
| 32 | |
| 33 | #endif /* _ASM_C6X_TIMEX_H */ |