New upstream version 18.11-rc1

[deb_dpdk.git] / lib / librte_table / rte_table_hash_func_arm64.h

diff --git a/lib/librte_table/rte_table_hash_func_arm64.h b/lib/librte_table/rte_table_hash_func_arm64.h
new file mode 100644 (file)
index 0000000..eb04c1f
--- /dev/null
+++ b/lib/librte_table/rte_table_hash_func_arm64.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2017-2018 Linaro Limited
+ */
+
+#ifndef __INCLUDE_RTE_TABLE_HASH_FUNC_ARM64_H__
+#define __INCLUDE_RTE_TABLE_HASH_FUNC_ARM64_H__
+
+#define _CRC32CX(crc, val)     \
+       __asm__("crc32cx %w[c], %w[c], %x[v]":[c] "+r" (crc):[v] "r" (val))
+
+static inline uint64_t
+rte_crc32_u64(uint64_t crc, uint64_t v)
+{
+       uint32_t crc32 = crc;
+
+       _CRC32CX(crc32, v);
+
+       return crc32;
+}
+
+#endif