[src/riastradh-drm2]: src/sys/external/bsd/drm2/include/linux Add Linux ATOMI...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/a8561e0c4f83
branches:  riastradh-drm2
changeset: 788547:a8561e0c4f83
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Sep 08 16:07:29 2013 +0000

description:
Add Linux ATOMIC_INIT, atomic_inc_return, and atomic_dec_return.

diffstat:

 sys/external/bsd/drm2/include/linux/atomic.h |  16 +++++++++++++++-
 1 files changed, 15 insertions(+), 1 deletions(-)

diffs (37 lines):

diff -r c4693a8f8daa -r a8561e0c4f83 sys/external/bsd/drm2/include/linux/atomic.h
--- a/sys/external/bsd/drm2/include/linux/atomic.h      Sun Sep 08 16:06:35 2013 +0000
+++ b/sys/external/bsd/drm2/include/linux/atomic.h      Sun Sep 08 16:07:29 2013 +0000
@@ -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 @@
        } a_u;
 };
 
+#define        ATOMIC_INIT(i)  { .a_u = { .au_int = (i) } }
+
 typedef struct atomic atomic_t;
 
 static inline int
@@ -88,6 +90,18 @@
 }
 
 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));