Add NetBSD atomic ops support.

Signed-off-by: Thomas Klausner <wiz@NetBSD.org>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@ubuntu.com>

diff --git a/xf86atomic.h b/xf86atomic.h
index 0739ef7..e794af8 100644 (file)
--- a/xf86atomic.h
+++ b/xf86atomic.h
@@ -75,21 +75,28 @@ typedef struct {
 
 #endif
 
-#if defined(__sun) && !defined(HAS_ATOMIC_OPS)  /* Solaris & OpenSolaris */
+#if (defined(__sun) || defined(__NetBSD__)) && !defined(HAS_ATOMIC_OPS)  /* Solaris & OpenSolaris & NetBSD */
 
 #include <sys/atomic.h>
 #define HAS_ATOMIC_OPS 1
 
-typedef struct { uint_t atomic; } atomic_t;
+#if defined(__NetBSD__)
+#define _ATOMIC_TYPE int
+#else
+#define _ATOMIC_TYPE uint_t
+#endif
+
+typedef struct { _ATOMIC_TYPE atomic; } atomic_t;
 
 # define atomic_read(x) (int) ((x)->atomic)
-# define atomic_set(x, val) ((x)->atomic = (uint_t)(val))
+# define atomic_set(x, val) ((x)->atomic = (_ATOMIC_TYPE)(val))
 # define atomic_inc(x) (atomic_inc_uint (&(x)->atomic))
 # define atomic_dec_and_test(x) (atomic_dec_uint_nv(&(x)->atomic) == 0)
 # define atomic_add(x, v) (atomic_add_int(&(x)->atomic, (v)))
 # define atomic_dec(x, v) (atomic_add_int(&(x)->atomic, -(v)))
 # define atomic_cmpxchg(x, oldv, newv) atomic_cas_uint (&(x)->atomic, oldv, newv)
 
+#undef _ATOMIC_TYPE
 #endif
 
 #if ! HAS_ATOMIC_OPS