Re: [dpdk-dev] [PATCH v15 01/11] eal: uninline power intrinsics

diff --git a/lib/librte_eal/x86/rte_power_intrinsics.c b/lib/librte_eal/x86/rte_power_intrinsics.c
new file mode 100644
index 0000000000..34c5fd9c3e
--- /dev/null
+++ b/lib/librte_eal/x86/rte_power_intrinsics.c

@@ -0,0 +1,120 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2020 Intel Corporation
+ */
+
+#include "rte_power_intrinsics.h"
+
+static inline uint64_t
+__get_umwait_val(const volatile void *p, const uint8_t sz)
+{
+	switch (sz) {
+	case sizeof(uint8_t):
+		return *(const volatile uint8_t *)p;
+	case sizeof(uint16_t):
+		return *(const volatile uint16_t *)p;
+	case sizeof(uint32_t):
+		return *(const volatile uint32_t *)p;
+	case sizeof(uint64_t):
+		return *(const volatile uint64_t *)p;
+	default:
+		/* this is an intrinsic, so we can't have any error handling */
+		RTE_ASSERT(0);
+		return 0;