1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Port on Texas Instruments TMS320C6x architecture 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated 6*4882a593Smuzhiyun * Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com) 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * Modified for 2.6.34: Mark Salter <msalter@redhat.com> 9*4882a593Smuzhiyun */ 10*4882a593Smuzhiyun #ifndef _ASM_C6X_TIMEX_H 11*4882a593Smuzhiyun #define _ASM_C6X_TIMEX_H 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #define CLOCK_TICK_RATE ((1000 * 1000000UL) / 6) 14*4882a593Smuzhiyun 15*4882a593Smuzhiyun /* 64-bit timestamp */ 16*4882a593Smuzhiyun typedef unsigned long long cycles_t; 17*4882a593Smuzhiyun get_cycles(void)18*4882a593Smuzhiyunstatic inline cycles_t get_cycles(void) 19*4882a593Smuzhiyun { 20*4882a593Smuzhiyun unsigned l, h; 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun asm volatile (" dint\n" 23*4882a593Smuzhiyun " mvc .s2 TSCL,%0\n" 24*4882a593Smuzhiyun " mvc .s2 TSCH,%1\n" 25*4882a593Smuzhiyun " rint\n" 26*4882a593Smuzhiyun : "=b"(l), "=b"(h)); 27*4882a593Smuzhiyun return ((cycles_t)h << 32) | l; 28*4882a593Smuzhiyun } 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun #endif /* _ASM_C6X_TIMEX_H */ 31