| /* 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 */ |
