CVS commit: [riastradh-drm2] src/sys/external/bsd/drm2/include/linux

[Taylor R Campbell]

Module Name:    src
Committed By:   riastradh
Date:           Sun Sep  8 16:07:29 UTC 2013

Modified Files:
        src/sys/external/bsd/drm2/include/linux [riastradh-drm2]: atomic.h

Log Message:
Add Linux ATOMIC_INIT, atomic_inc_return, and atomic_dec_return.


To generate a diff of this commit:
cvs rdiff -u -r1.1.2.10 -r1.1.2.11 \
    src/sys/external/bsd/drm2/include/linux/atomic.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.


Modified files:

Index: src/sys/external/bsd/drm2/include/linux/atomic.h
diff -u src/sys/external/bsd/drm2/include/linux/atomic.h:1.1.2.10 src/sys/external/bsd/drm2/include/linux/atomic.h:1.1.2.11
--- src/sys/external/bsd/drm2/include/linux/atomic.h:1.1.2.10	Sun Sep  8 15:37:04 2013
+++ src/sys/external/bsd/drm2/include/linux/atomic.h	Sun Sep  8 16:07:29 2013
@@ -1,4 +1,4 @@
-/*	$NetBSD: atomic.h,v 1.1.2.10 2013/09/08 15:37:04 riastradh Exp $	*/
+/*	$NetBSD: atomic.h,v 1.1.2.11 2013/09/08 16:07:29 riastradh Exp $	*/
 
 /*-
  * Copyright (c) 2013 The NetBSD Foundation, Inc.
@@ -43,6 +43,8 @@ struct atomic {
 	} a_u;
 };
 
+#define	ATOMIC_INIT(i)	{ .a_u = { .au_int = (i) } }
+
 typedef struct atomic atomic_t;
 
 static inline int
@@ -88,6 +90,18 @@ atomic_dec(atomic_t *atomic)
 }
 
 static inline int
+atomic_inc_return(atomic_t *atomic)
+{
+	return (int)atomic_inc_uint_nv(&atomic->a_u.au_uint);
+}
+
+static inline int
+atomic_dec_return(atomic_t *atomic)
+{
+	return (int)atomic_dec_uint_nv(&atomic->a_u.au_uint);
+}
+
+static inline int
 atomic_dec_and_test(atomic_t *atomic)
 {
 	return (-1 == (int)atomic_dec_uint_nv(&atomic->a_u.au_uint));