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 (431B)

      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#ifdef CONFIG_OPENRISC_HAVE_INST_FF1
     12
     13static inline int ffs(int x)
     14{
     15	int ret;
     16
     17	__asm__ ("l.ff1 %0,%1"
     18		 : "=r" (ret)
     19		 : "r" (x));
     20
     21	return ret;
     22}
     23
     24#else
     25#include <asm-generic/bitops/ffs.h>
     26#endif
     27
     28#endif /* __ASM_OPENRISC_FFS_H */