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gerrit-public.fairphone.software / kernel / msm-4.9 / 28b581ab0a0aa7bc8b22935779ca3e8d6f651ac7 / . / arch / blackfin / include / asm / timex.h
blob: 248aeb06680527f49dd24d3e559295ac9fdf78ed [file] [log] [blame]
Mike Frysinger764cb812008-04-24 05:07:29 +0800[diff] [blame]1/*
2 * asm-blackfin/timex.h: cpu cycles!
Bryan Wu1394f032007-05-06 14:50:22 -0700[diff] [blame]3 *
Mike Frysinger764cb812008-04-24 05:07:29 +0800[diff] [blame]4 * Copyright 2004-2008 Analog Devices Inc.
5 *
6 * Licensed under the GPL-2 or later.
Bryan Wu1394f032007-05-06 14:50:22 -0700[diff] [blame]7 */
8
Mike Frysinger764cb812008-04-24 05:07:29 +0800[diff] [blame]9#ifndef _ASM_BLACKFIN_TIMEX_H
10#define _ASM_BLACKFIN_TIMEX_H
Bryan Wu1394f032007-05-06 14:50:22 -0700[diff] [blame]11
12#define CLOCK_TICK_RATE 1000000 /* Underlying HZ */
13
Mike Frysinger764cb812008-04-24 05:07:29 +0800[diff] [blame]14typedef unsigned long long cycles_t;
Bryan Wu1394f032007-05-06 14:50:22 -0700[diff] [blame]15
16static inline cycles_t get_cycles(void)
17{
Mike Frysinger764cb812008-04-24 05:07:29 +0800[diff] [blame]18 unsigned long tmp, tmp2;
Mike Frysinger1390da42008-10-16 23:55:41 +0800[diff] [blame]19 __asm__ __volatile__("%0 = cycles; %1 = cycles2;" : "=d"(tmp), "=d"(tmp2));
Mike Frysinger764cb812008-04-24 05:07:29 +0800[diff] [blame]20 return tmp | ((cycles_t)tmp2 << 32);
Bryan Wu1394f032007-05-06 14:50:22 -0700[diff] [blame]21}
22
23#endif