diff --git a/util/udma_barrier.h b/util/udma_barrier.h

index 5730576..05281cf 100644

--- a/util/udma_barrier.h

+++ b/util/udma_barrier.h

@@ -84,6 +84,9 @@

 #define udma_to_device_barrier() asm volatile("" ::: "memory")

 #elif defined(__x86_64__)

 #define udma_to_device_barrier() asm volatile("" ::: "memory")

+#elif defined(__e2k__)

+#include <x86intrin.h>

+#define udma_to_device_barrier() __builtin_ia32_mfence()

 #elif defined(__PPC64__)

 #define udma_to_device_barrier() asm volatile("sync" ::: "memory")

 #elif defined(__PPC__)

@@ -118,6 +121,8 @@

 #define udma_from_device_barrier() asm volatile("lock; addl $0,0(%%esp) " ::: "memory")

 #elif defined(__x86_64__)

 #define udma_from_device_barrier() asm volatile("lfence" ::: "memory")

+#elif defined(__e2k__)

+#define udma_from_device_barrier() __builtin_ia32_lfence()

 #elif defined(__PPC64__)

 #define udma_from_device_barrier() asm volatile("lwsync" ::: "memory")

 #elif defined(__PPC__)

@@ -184,6 +189,8 @@

 #define mmio_flush_writes() asm volatile("lock; addl $0,0(%%esp) " ::: "memory")

 #elif defined(__x86_64__)

 #define mmio_flush_writes() asm volatile("sfence" ::: "memory")

+#elif defined(__e2k__)

+#define mmio_flush_writes() __builtin_ia32_sfence()

 #elif defined(__PPC64__)

 #define mmio_flush_writes() asm volatile("sync" ::: "memory")

 #elif defined(__PPC__)