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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 97 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141901.025053186@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
53 lines
916 B
C
53 lines
916 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2012 Regents of the University of California
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*/
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#ifndef _ASM_RISCV_TIMEX_H
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#define _ASM_RISCV_TIMEX_H
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#include <asm/param.h>
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typedef unsigned long cycles_t;
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static inline cycles_t get_cycles_inline(void)
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{
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cycles_t n;
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__asm__ __volatile__ (
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"rdtime %0"
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: "=r" (n));
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return n;
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}
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#define get_cycles get_cycles_inline
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#ifdef CONFIG_64BIT
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static inline uint64_t get_cycles64(void)
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{
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return get_cycles();
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}
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#else
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static inline uint64_t get_cycles64(void)
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{
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u32 lo, hi, tmp;
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__asm__ __volatile__ (
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"1:\n"
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"rdtimeh %0\n"
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"rdtime %1\n"
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"rdtimeh %2\n"
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"bne %0, %2, 1b"
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: "=&r" (hi), "=&r" (lo), "=&r" (tmp));
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return ((u64)hi << 32) | lo;
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}
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#endif
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#define ARCH_HAS_READ_CURRENT_TIMER
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static inline int read_current_timer(unsigned long *timer_val)
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{
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*timer_val = get_cycles();
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return 0;
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}
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#endif /* _ASM_RISCV_TIMEX_H */
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