cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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__ffs.h (464B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 * OpenRISC Linux
      4 *
      5 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
      6 */
      7
      8#ifndef __ASM_OPENRISC___FFS_H
      9#define __ASM_OPENRISC___FFS_H
     10
     11
     12#ifdef CONFIG_OPENRISC_HAVE_INST_FF1
     13
     14static inline unsigned long __ffs(unsigned long x)
     15{
     16	int ret;
     17
     18	__asm__ ("l.ff1 %0,%1"
     19		 : "=r" (ret)
     20		 : "r" (x));
     21
     22	return ret-1;
     23}
     24
     25#else
     26#include <asm-generic/bitops/__ffs.h>
     27#endif
     28
     29#endif /* __ASM_OPENRISC___FFS_H */