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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bitops.h (1616B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef __ASM_SH_BITOPS_H
      3#define __ASM_SH_BITOPS_H
      4
      5#ifndef _LINUX_BITOPS_H
      6#error only <linux/bitops.h> can be included directly
      7#endif
      8
      9/* For __swab32 */
     10#include <asm/byteorder.h>
     11#include <asm/barrier.h>
     12
     13#ifdef CONFIG_GUSA_RB
     14#include <asm/bitops-grb.h>
     15#elif defined(CONFIG_CPU_SH2A)
     16#include <asm-generic/bitops/atomic.h>
     17#include <asm/bitops-op32.h>
     18#elif defined(CONFIG_CPU_SH4A)
     19#include <asm/bitops-llsc.h>
     20#elif defined(CONFIG_CPU_J2) && defined(CONFIG_SMP)
     21#include <asm/bitops-cas.h>
     22#else
     23#include <asm-generic/bitops/atomic.h>
     24#include <asm-generic/bitops/non-atomic.h>
     25#endif
     26
     27static inline unsigned long ffz(unsigned long word)
     28{
     29	unsigned long result;
     30
     31	__asm__("1:\n\t"
     32		"shlr	%1\n\t"
     33		"bt/s	1b\n\t"
     34		" add	#1, %0"
     35		: "=r" (result), "=r" (word)
     36		: "0" (~0L), "1" (word)
     37		: "t");
     38	return result;
     39}
     40
     41/**
     42 * __ffs - find first bit in word.
     43 * @word: The word to search
     44 *
     45 * Undefined if no bit exists, so code should check against 0 first.
     46 */
     47static inline unsigned long __ffs(unsigned long word)
     48{
     49	unsigned long result;
     50
     51	__asm__("1:\n\t"
     52		"shlr	%1\n\t"
     53		"bf/s	1b\n\t"
     54		" add	#1, %0"
     55		: "=r" (result), "=r" (word)
     56		: "0" (~0L), "1" (word)
     57		: "t");
     58	return result;
     59}
     60
     61#include <asm-generic/bitops/ffs.h>
     62#include <asm-generic/bitops/hweight.h>
     63#include <asm-generic/bitops/lock.h>
     64#include <asm-generic/bitops/sched.h>
     65#include <asm-generic/bitops/ext2-atomic.h>
     66#include <asm-generic/bitops/fls.h>
     67#include <asm-generic/bitops/__fls.h>
     68#include <asm-generic/bitops/fls64.h>
     69
     70#include <asm-generic/bitops/le.h>
     71
     72#endif /* __ASM_SH_BITOPS_H */