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_32.h (2816B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/*
      3 * bitops.h: Bit string operations on the Sparc.
      4 *
      5 * Copyright 1995 David S. Miller (davem@caip.rutgers.edu)
      6 * Copyright 1996 Eddie C. Dost   (ecd@skynet.be)
      7 * Copyright 2001 Anton Blanchard (anton@samba.org)
      8 */
      9
     10#ifndef _SPARC_BITOPS_H
     11#define _SPARC_BITOPS_H
     12
     13#include <linux/compiler.h>
     14#include <asm/byteorder.h>
     15
     16#ifdef __KERNEL__
     17
     18#ifndef _LINUX_BITOPS_H
     19#error only <linux/bitops.h> can be included directly
     20#endif
     21
     22unsigned long ___set_bit(unsigned long *addr, unsigned long mask);
     23unsigned long ___clear_bit(unsigned long *addr, unsigned long mask);
     24unsigned long ___change_bit(unsigned long *addr, unsigned long mask);
     25
     26/*
     27 * Set bit 'nr' in 32-bit quantity at address 'addr' where bit '0'
     28 * is in the highest of the four bytes and bit '31' is the high bit
     29 * within the first byte. Sparc is BIG-Endian. Unless noted otherwise
     30 * all bit-ops return 0 if bit was previously clear and != 0 otherwise.
     31 */
     32static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *addr)
     33{
     34	unsigned long *ADDR, mask;
     35
     36	ADDR = ((unsigned long *) addr) + (nr >> 5);
     37	mask = 1 << (nr & 31);
     38
     39	return ___set_bit(ADDR, mask) != 0;
     40}
     41
     42static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
     43{
     44	unsigned long *ADDR, mask;
     45
     46	ADDR = ((unsigned long *) addr) + (nr >> 5);
     47	mask = 1 << (nr & 31);
     48
     49	(void) ___set_bit(ADDR, mask);
     50}
     51
     52static inline int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr)
     53{
     54	unsigned long *ADDR, mask;
     55
     56	ADDR = ((unsigned long *) addr) + (nr >> 5);
     57	mask = 1 << (nr & 31);
     58
     59	return ___clear_bit(ADDR, mask) != 0;
     60}
     61
     62static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
     63{
     64	unsigned long *ADDR, mask;
     65
     66	ADDR = ((unsigned long *) addr) + (nr >> 5);
     67	mask = 1 << (nr & 31);
     68
     69	(void) ___clear_bit(ADDR, mask);
     70}
     71
     72static inline int test_and_change_bit(unsigned long nr, volatile unsigned long *addr)
     73{
     74	unsigned long *ADDR, mask;
     75
     76	ADDR = ((unsigned long *) addr) + (nr >> 5);
     77	mask = 1 << (nr & 31);
     78
     79	return ___change_bit(ADDR, mask) != 0;
     80}
     81
     82static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
     83{
     84	unsigned long *ADDR, mask;
     85
     86	ADDR = ((unsigned long *) addr) + (nr >> 5);
     87	mask = 1 << (nr & 31);
     88
     89	(void) ___change_bit(ADDR, mask);
     90}
     91
     92#include <asm-generic/bitops/non-atomic.h>
     93
     94#include <asm-generic/bitops/ffz.h>
     95#include <asm-generic/bitops/__ffs.h>
     96#include <asm-generic/bitops/sched.h>
     97#include <asm-generic/bitops/ffs.h>
     98#include <asm-generic/bitops/fls.h>
     99#include <asm-generic/bitops/__fls.h>
    100#include <asm-generic/bitops/fls64.h>
    101#include <asm-generic/bitops/hweight.h>
    102#include <asm-generic/bitops/lock.h>
    103#include <asm-generic/bitops/le.h>
    104#include <asm-generic/bitops/ext2-atomic.h>
    105
    106#endif /* __KERNEL__ */
    107
    108#endif /* defined(_SPARC_BITOPS_H) */