Module Name: xsrc
Committed By: mrg
Date: Sat May 22 22:13:17 UTC 2010
Modified Files:
xsrc/external/mit/libdrm/dist: xf86atomic.h
Log Message:
pull across pkgsrc patch-ad: add netbsd atomic ops support.
To generate a diff of this commit:
cvs rdiff -u -r1.1.1.1 -r1.2 xsrc/external/mit/libdrm/dist/xf86atomic.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: xsrc/external/mit/libdrm/dist/xf86atomic.h
diff -u xsrc/external/mit/libdrm/dist/xf86atomic.h:1.1.1.1 xsrc/external/mit/libdrm/dist/xf86atomic.h:1.2
--- xsrc/external/mit/libdrm/dist/xf86atomic.h:1.1.1.1 Sat May 22 21:45:11 2010
+++ xsrc/external/mit/libdrm/dist/xf86atomic.h Sat May 22 22:13:17 2010
@@ -92,6 +92,23 @@
#endif
+#if defined(__NetBSD__) && !defined(HAS_ATOMIC_OPS) /* NetBSD */
+
+#include <sys/atomic.h>
+#define HAS_ATOMIC_OPS 1
+
+typedef struct { int atomic; } atomic_t;
+
+# define atomic_read(x) (int) ((x)->atomic)
+# define atomic_set(x, val) ((x)->atomic = (val))
+# define atomic_inc(x) (atomic_inc_uint (&(x)->atomic))
+# define atomic_dec_and_test(x) (atomic_dec_uint_nv(&(x)->atomic) == 1)
+# 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)
+
+#endif
+
#if ! HAS_ATOMIC_OPS
#error libdrm requires atomic operations, please define them for your CPU/compiler.
#endif
