[7/8] htm: add powerpc64 intrinsics

Commit Message

Emilio Cota Aug. 24, 2016, 10:18 p.m. UTC

Signed-off-by: Emilio G. Cota <[e-mail]>
---
 include/qemu/htm.h | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

Patch

diff --git a/include/qemu/htm.h b/include/qemu/htm.h
index dc84bc1..f367ee4 100644
--- a/include/qemu/htm.h
+++ b/include/qemu/htm.h
@@ -39,5 +39,44 @@  static inline void htm_abort(void)
 {
     _xabort(0);
 }
+
+#elif defined(__powerpc64__)
+/* compile with -mhtm */
+#include <htmintrin.h>
+
+static inline int htm_begin(void)
+{
+    unsigned int status;
+
+    status = __builtin_tbegin(0);
+    if (likely(status)) {
+        return HTM_OK;
+    }
+    if (_TEXASRU_FAILURE_PERSISTENT(__builtin_get_texasru())) {
+        return HTM_ABORT_NORETRY;
+    }
+    return HTM_ABORT_RETRY;
+}
+
+static inline void htm_end(void)
+{
+    __builtin_tend(0);
+}
+
+static inline int htm_test(void)
+{
+    unsigned char state = _HTM_STATE(__builtin_ttest());
+
+    if (likely(state == _HTM_TRANSACTIONAL)) {
+        return 1;
+    }
+    return 0;
+}
+
+static inline void htm_abort(void)
+{
+    __builtin_tabort(0);
+}
+
 #endif /* ISA */
 #endif /* HTM_H */