Signed-off-by: Thomas Klausner wiz@NetBSD.org --- xf86atomic.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/xf86atomic.h b/xf86atomic.h index db2f619..d0f85fc 100644 --- a/xf86atomic.h +++ b/xf86atomic.h @@ -92,6 +92,23 @@ typedef struct { uint_t atomic; } atomic_t;
#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) == 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) + +#endif + #if ! HAS_ATOMIC_OPS #error libdrm requires atomic operations, please define them for your CPU/compiler. #endif