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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atomic_32.h (1760B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/* atomic.h: These still suck, but the I-cache hit rate is higher.
      3 *
      4 * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
      5 * Copyright (C) 2000 Anton Blanchard (anton@linuxcare.com.au)
      6 * Copyright (C) 2007 Kyle McMartin (kyle@parisc-linux.org)
      7 *
      8 * Additions by Keith M Wesolowski (wesolows@foobazco.org) based
      9 * on asm-parisc/atomic.h Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>.
     10 */
     11
     12#ifndef __ARCH_SPARC_ATOMIC__
     13#define __ARCH_SPARC_ATOMIC__
     14
     15#include <linux/types.h>
     16
     17#include <asm/cmpxchg.h>
     18#include <asm/barrier.h>
     19#include <asm-generic/atomic64.h>
     20
     21int arch_atomic_add_return(int, atomic_t *);
     22int arch_atomic_fetch_add(int, atomic_t *);
     23int arch_atomic_fetch_and(int, atomic_t *);
     24int arch_atomic_fetch_or(int, atomic_t *);
     25int arch_atomic_fetch_xor(int, atomic_t *);
     26int arch_atomic_cmpxchg(atomic_t *, int, int);
     27int arch_atomic_xchg(atomic_t *, int);
     28int arch_atomic_fetch_add_unless(atomic_t *, int, int);
     29void arch_atomic_set(atomic_t *, int);
     30
     31#define arch_atomic_fetch_add_unless arch_atomic_fetch_add_unless
     32
     33#define arch_atomic_set_release(v, i)	arch_atomic_set((v), (i))
     34
     35#define arch_atomic_read(v)		READ_ONCE((v)->counter)
     36
     37#define arch_atomic_add(i, v)	((void)arch_atomic_add_return( (int)(i), (v)))
     38#define arch_atomic_sub(i, v)	((void)arch_atomic_add_return(-(int)(i), (v)))
     39
     40#define arch_atomic_and(i, v)	((void)arch_atomic_fetch_and((i), (v)))
     41#define arch_atomic_or(i, v)	((void)arch_atomic_fetch_or((i), (v)))
     42#define arch_atomic_xor(i, v)	((void)arch_atomic_fetch_xor((i), (v)))
     43
     44#define arch_atomic_sub_return(i, v)	(arch_atomic_add_return(-(int)(i), (v)))
     45#define arch_atomic_fetch_sub(i, v)	(arch_atomic_fetch_add (-(int)(i), (v)))
     46
     47#endif /* !(__ARCH_SPARC_ATOMIC__) */