Sun Dec 19 01:39:20 2021 UTC ()

atomic_fetch_xor


(riastradh)

diff -r1.24 -r1.25 src/sys/external/bsd/drm2/include/linux/atomic.h

--- src/sys/external/bsd/drm2/include/linux/atomic.h 2021/12/19 01:33:51	1.24
+++ src/sys/external/bsd/drm2/include/linux/atomic.h 2021/12/19 01:39:20	1.25

 @@ -1,14 +1,14 @@
-/*	$NetBSD: atomic.h,v 1.24 2021/12/19 01:33:51 riastradh Exp $	*/
+/*	$NetBSD: atomic.h,v 1.25 2021/12/19 01:39:20 riastradh Exp $	*/
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
  * All rights reserved.
+ *
  * This code is derived from software contributed to The NetBSD Foundation
  * by Taylor R. Campbell.
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
 @@ -159,26 +159,42 @@ static inline void
 atomic_or(int value, atomic_t *atomic)
+{
 	/* no membar */
 	atomic_or_uint(&atomic->a_u.au_uint, value);
+}
 static inline void
 atomic_andnot(int value, atomic_t *atomic)
+{
 	/* no membar */
 	atomic_and_uint(&atomic->a_u.au_uint, ~value);
+}
 static inline int
 atomic_fetch_xor(int value, atomic_t *atomic)
+{
 	unsigned old, new;
 	smp_mb__before_atomic();
 	do {
 		old = atomic->a_u.au_uint;
 		__insn_barrier();
 		new = old ^ value;
 	} while (atomic_cas_uint(&atomic->a_u.au_uint, old, new) != old);
 	smp_mb__after_atomic();
 	return old;
+}
 static inline void
 atomic_set_mask(unsigned long mask, atomic_t *atomic)
+{
 	/* no membar */
 	atomic_or_uint(&atomic->a_u.au_uint, mask);
+}
 static inline void
 atomic_clear_mask(unsigned long mask, atomic_t *atomic)
+{
 	/* no membar */
 	atomic_and_uint(&atomic->a_u.au_uint, ~mask);
+}