From 9714ab1479bf76c06118f8e7369cb1113df337c3 Mon Sep 17 00:00:00 2001

From: Ilya Kurdyukov <jpegqs@gmail.com>

Date: Thu, 18 Feb 2021 19:06:01 +0700

Subject: [PATCH] Elbrus (e2k) spinlock code

---

 src/include/storage/s_lock.h | 11 +++++++++++

 1 file changed, 11 insertions(+)

diff --git a/src/include/storage/s_lock.h b/src/include/storage/s_lock.h

index 254c40d..4d4dbea 100644

--- a/src/include/storage/s_lock.h

+++ b/src/include/storage/s_lock.h

@@ -440,6 +440,17 @@ do \

 #endif	 /* __sparc__ */

+/* Elbrus */

+#ifdef __e2k__

+#define HAS_TEST_AND_SET

+typedef int slock_t;

+/* There is no need to check for sync_lock availability. */

+#define TAS(lock) __sync_lock_test_and_set(lock, 1)

+#define S_UNLOCK(lock) __sync_lock_release(lock)

+#define SPIN_DELAY() do { __asm__ __volatile__ ("nop" : : ); } while(0)

+#endif

+

+

 /* PowerPC */

 #if defined(__ppc__) || defined(__powerpc__) || defined(__ppc64__) || defined(__powerpc64__)

 #define HAS_TEST_AND_SET

-- 

2.17.1