1 files changed, 47 insertions, 0 deletions
diff --git a/platform/linux-generic/arch/aarch64/odp/api/abi/wait_until.h b/platform/linux-generic/arch/aarch64/odp/api/abi/wait_until.h
new file mode 100644
index 000000000..73a3d476a
--- /dev/null
+++ b/platform/linux-generic/arch/aarch64/odp/api/abi/wait_until.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2023 ARM Limited
+ */
+
+#ifndef ODP_API_ABI_WAIT_UNTIL_H_
+#define ODP_API_ABI_WAIT_UNTIL_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <odp/autoheader_external.h>
+
+#ifdef _ODP_WFE_LOCKS
+
+#include <stdint.h>
+
+#include <odp/api/atomic.h>
+
+static inline void
+_odp_wait_until_equal_acq_u32(odp_atomic_u32_t *addr, uint32_t expected)
+{
+	uint32_t value;
+	uint32_t *var = &addr->v;
+
+	__asm__ volatile("sevl" : : : "memory");
+	do {
+		__asm__ volatile("wfe" : : : "memory");
+		__asm__ volatile("ldaxr %w0, [%1]"
+					 : "=&r" (value)
+					 : "r" (var)
+					 : "memory");
+	} while (expected != value);
+}
+
+#else /* !_ODP_WFE_LOCKS*/
+
+/* Use generic implementation */
+#include <odp/api/abi/wait_until_generic.h>
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif