diff --git a/lib/librte_eal/common/Makefile b/lib/librte_eal/common/Makefile
index 62a39cd..c6aedf9 100644
--- a/lib/librte_eal/common/Makefile
+++ b/lib/librte_eal/common/Makefile
@@ -32,7 +32,7 @@
 include $(RTE_SDK)/mk/rte.vars.mk
 
 INC := rte_branch_prediction.h rte_common.h
-INC += rte_cycles.h rte_debug.h rte_eal.h rte_errno.h rte_launch.h rte_lcore.h
+INC += rte_debug.h rte_eal.h rte_errno.h rte_launch.h rte_lcore.h
 INC += rte_log.h rte_memcpy.h rte_memory.h rte_memzone.h rte_pci.h
 INC += rte_pci_dev_ids.h rte_per_lcore.h rte_prefetch.h rte_random.h
 INC += rte_rwlock.h rte_spinlock.h rte_tailq.h rte_interrupts.h rte_alarm.h
@@ -46,7 +46,7 @@ ifeq ($(CONFIG_RTE_INSECURE_FUNCTION_WARNING),y)
 INC += rte_warnings.h
 endif
 
-GENERIC_INC := rte_atomic.h rte_byteorder.h
+GENERIC_INC := rte_atomic.h rte_byteorder.h rte_cycles.h
 ARCH_INC := $(GENERIC_INC)
 
 SYMLINK-$(CONFIG_RTE_LIBRTE_EAL)-include := $(addprefix include/,$(INC))
diff --git a/lib/librte_eal/common/include/arch/i686/rte_cycles.h b/lib/librte_eal/common/include/arch/i686/rte_cycles.h
new file mode 100644
index 0000000..6e47040
--- /dev/null
+++ b/lib/librte_eal/common/include/arch/i686/rte_cycles.h
@@ -0,0 +1,121 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/*   BSD LICENSE
+ *
+ *   Copyright(c) 2013 6WIND.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of 6WIND S.A. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_CYCLES_I686_H_
+#define _RTE_CYCLES_I686_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "generic/rte_cycles.h"
+
+#ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
+/* Global switch to use VMWARE mapping of TSC instead of RDTSC */
+extern int rte_cycles_vmware_tsc_map;
+#include <rte_branch_prediction.h>
+#endif
+
+static inline uint64_t
+rte_rdtsc(void)
+{
+	union {
+		uint64_t tsc_64;
+		struct {
+			uint32_t lo_32;
+			uint32_t hi_32;
+		};
+	} tsc;
+
+#ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
+	if (unlikely(rte_cycles_vmware_tsc_map)) {
+		/* ecx = 0x10000 corresponds to the physical TSC for VMware */
+		asm volatile("rdpmc" :
+		             "=a" (tsc.lo_32),
+		             "=d" (tsc.hi_32) :
+		             "c"(0x10000));
+		return tsc.tsc_64;
+	}
+#endif
+
+	asm volatile("rdtsc" :
+		     "=a" (tsc.lo_32),
+		     "=d" (tsc.hi_32));
+	return tsc.tsc_64;
+}
+
+static inline uint64_t
+rte_rdtsc_precise(void)
+{
+	rte_mb();
+	return rte_rdtsc();
+}
+
+static inline uint64_t
+rte_get_tsc_cycles(void) { return rte_rdtsc(); }
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_CYCLES_I686_H_ */
diff --git a/lib/librte_eal/common/include/arch/x86_64/rte_cycles.h b/lib/librte_eal/common/include/arch/x86_64/rte_cycles.h
new file mode 100644
index 0000000..6e3c7d8
--- /dev/null
+++ b/lib/librte_eal/common/include/arch/x86_64/rte_cycles.h
@@ -0,0 +1,121 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/*   BSD LICENSE
+ *
+ *   Copyright(c) 2013 6WIND.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of 6WIND S.A. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_CYCLES_X86_64_H_
+#define _RTE_CYCLES_X86_64_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "generic/rte_cycles.h"
+
+#ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
+/* Global switch to use VMWARE mapping of TSC instead of RDTSC */
+extern int rte_cycles_vmware_tsc_map;
+#include <rte_branch_prediction.h>
+#endif
+
+static inline uint64_t
+rte_rdtsc(void)
+{
+	union {
+		uint64_t tsc_64;
+		struct {
+			uint32_t lo_32;
+			uint32_t hi_32;
+		};
+	} tsc;
+
+#ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
+	if (unlikely(rte_cycles_vmware_tsc_map)) {
+		/* ecx = 0x10000 corresponds to the physical TSC for VMware */
+		asm volatile("rdpmc" :
+		             "=a" (tsc.lo_32),
+		             "=d" (tsc.hi_32) :
+		             "c"(0x10000));
+		return tsc.tsc_64;
+	}
+#endif
+
+	asm volatile("rdtsc" :
+		     "=a" (tsc.lo_32),
+		     "=d" (tsc.hi_32));
+	return tsc.tsc_64;
+}
+
+static inline uint64_t
+rte_rdtsc_precise(void)
+{
+	rte_mb();
+	return rte_rdtsc();
+}
+
+static inline uint64_t
+rte_get_tsc_cycles(void) { return rte_rdtsc(); }
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_CYCLES_X86_64_H_ */
diff --git a/lib/librte_eal/common/include/generic/rte_cycles.h b/lib/librte_eal/common/include/generic/rte_cycles.h
new file mode 100644
index 0000000..c42b90b
--- /dev/null
+++ b/lib/librte_eal/common/include/generic/rte_cycles.h
@@ -0,0 +1,209 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+/*   BSD LICENSE
+ *
+ *   Copyright(c) 2013 6WIND.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of 6WIND S.A. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTE_CYCLES_H_
+#define _RTE_CYCLES_H_
+
+/**
+ * @file
+ *
+ * Simple Time Reference Functions (Cycles and HPET).
+ */
+
+#include <stdint.h>
+#include <rte_debug.h>
+#include <rte_atomic.h>
+
+#define MS_PER_S 1000
+#define US_PER_S 1000000
+#define NS_PER_S 1000000000
+
+enum timer_source {
+	EAL_TIMER_TSC = 0,
+	EAL_TIMER_HPET
+};
+extern enum timer_source eal_timer_source;
+
+/**
+ * Get the measured frequency of the RDTSC counter
+ *
+ * @return
+ *   The TSC frequency for this lcore
+ */
+uint64_t
+rte_get_tsc_hz(void);
+
+/**
+ * Return the number of TSC cycles since boot
+ *
+  * @return
+ *   the number of cycles
+ */
+static inline uint64_t
+rte_get_tsc_cycles(void);
+
+#ifdef RTE_LIBEAL_USE_HPET
+/**
+ * Return the number of HPET cycles since boot
+ *
+ * This counter is global for all execution units. The number of
+ * cycles in one second can be retrieved using rte_get_hpet_hz().
+ *
+ * @return
+ *   the number of cycles
+ */
+uint64_t
+rte_get_hpet_cycles(void);
+
+/**
+ * Get the number of HPET cycles in one second.
+ *
+ * @return
+ *   The number of cycles in one second.
+ */
+uint64_t
+rte_get_hpet_hz(void);
+
+/**
+ * Initialise the HPET for use. This must be called before the rte_get_hpet_hz
+ * and rte_get_hpet_cycles APIs are called. If this function does not succeed,
+ * then the HPET functions are unavailable and should not be called.
+ *
+ * @param make_default
+ * 	If set, the hpet timer becomes the default timer whose values are
+ * 	returned by the rte_get_timer_hz/cycles API calls
+ *
+ * @return
+ * 	0 on success,
+ * 	-1 on error, and the make_default parameter is ignored.
+ */
+int rte_eal_hpet_init(int make_default);
+
+#endif
+
+/**
+ * Get the number of cycles since boot from the default timer.
+ *
+ * @return
+ *   The number of cycles
+ */
+static inline uint64_t
+rte_get_timer_cycles(void)
+{
+	switch(eal_timer_source) {
+	case EAL_TIMER_TSC:
+		return rte_get_tsc_cycles();
+	case EAL_TIMER_HPET:
+#ifdef RTE_LIBEAL_USE_HPET
+		return rte_get_hpet_cycles();
+#endif
+	default: rte_panic("Invalid timer source specified\n");
+	}
+}
+
+/**
+ * Get the number of cycles in one second for the default timer.
+ *
+ * @return
+ *   The number of cycles in one second.
+ */
+static inline uint64_t
+rte_get_timer_hz(void)
+{
+	switch(eal_timer_source) {
+	case EAL_TIMER_TSC:
+		return rte_get_tsc_hz();
+	case EAL_TIMER_HPET:
+#ifdef RTE_LIBEAL_USE_HPET
+		return rte_get_hpet_hz();
+#endif
+	default: rte_panic("Invalid timer source specified\n");
+	}
+}
+
+/**
+ * Wait at least us microseconds.
+ *
+ * @param us
+ *   The number of microseconds to wait.
+ */
+void
+rte_delay_us(unsigned us);
+
+/**
+ * Wait at least ms milliseconds.
+ *
+ * @param ms
+ *   The number of milliseconds to wait.
+ */
+static inline void
+rte_delay_ms(unsigned ms)
+{
+	rte_delay_us(ms * 1000);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_CYCLES_H_ */
diff --git a/lib/librte_eal/common/include/rte_cycles.h b/lib/librte_eal/common/include/rte_cycles.h
deleted file mode 100644
index 9b4dbe1..0000000
--- a/lib/librte_eal/common/include/rte_cycles.h
+++ /dev/null
@@ -1,266 +0,0 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- *   All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * Neither the name of Intel Corporation nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-/*   BSD LICENSE
- *
- *   Copyright(c) 2013 6WIND.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * Neither the name of 6WIND S.A. nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef _RTE_CYCLES_H_
-#define _RTE_CYCLES_H_
-
-/**
- * @file
- *
- * Simple Time Reference Functions (Cycles and HPET).
- */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stdint.h>
-#include <rte_debug.h>
-#include <rte_atomic.h>
-
-#ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
-/** Global switch to use VMWARE mapping of TSC instead of RDTSC */
-extern int rte_cycles_vmware_tsc_map;
-#include <rte_branch_prediction.h>
-#endif
-
-#define MS_PER_S 1000
-#define US_PER_S 1000000
-#define NS_PER_S 1000000000
-
-enum timer_source {
-	EAL_TIMER_TSC = 0,
-	EAL_TIMER_HPET
-};
-extern enum timer_source eal_timer_source;
-
-/**
- * Read the TSC register.
- *
- * @return
- *   The TSC for this lcore.
- */
-static inline uint64_t
-rte_rdtsc(void)
-{
-	union {
-		uint64_t tsc_64;
-		struct {
-			uint32_t lo_32;
-			uint32_t hi_32;
-		};
-	} tsc;
-
-#ifdef RTE_LIBRTE_EAL_VMWARE_TSC_MAP_SUPPORT
-	if (unlikely(rte_cycles_vmware_tsc_map)) {
-		/* ecx = 0x10000 corresponds to the physical TSC for VMware */
-		asm volatile("rdpmc" :
-		             "=a" (tsc.lo_32),
-		             "=d" (tsc.hi_32) :
-		             "c"(0x10000));
-		return tsc.tsc_64;
-	}
-#endif
-
-	asm volatile("rdtsc" :
-		     "=a" (tsc.lo_32),
-		     "=d" (tsc.hi_32));
-	return tsc.tsc_64;
-}
-
-/**
- * Read the TSC register precisely where function is called.
- *
- * @return
- *   The TSC for this lcore.
- */
-static inline uint64_t
-rte_rdtsc_precise(void)
-{
-	rte_mb();
-	return rte_rdtsc();
-}
-
-/**
- * Get the measured frequency of the RDTSC counter
- *
- * @return
- *   The TSC frequency for this lcore
- */
-uint64_t
-rte_get_tsc_hz(void);
-
-/**
- * Return the number of TSC cycles since boot
- *
-  * @return
- *   the number of cycles
- */
-static inline uint64_t
-rte_get_tsc_cycles(void) { return rte_rdtsc(); }
-
-#ifdef RTE_LIBEAL_USE_HPET
-/**
- * Return the number of HPET cycles since boot
- *
- * This counter is global for all execution units. The number of
- * cycles in one second can be retrieved using rte_get_hpet_hz().
- *
- * @return
- *   the number of cycles
- */
-uint64_t
-rte_get_hpet_cycles(void);
-
-/**
- * Get the number of HPET cycles in one second.
- *
- * @return
- *   The number of cycles in one second.
- */
-uint64_t
-rte_get_hpet_hz(void);
-
-/**
- * Initialise the HPET for use. This must be called before the rte_get_hpet_hz
- * and rte_get_hpet_cycles APIs are called. If this function does not succeed,
- * then the HPET functions are unavailable and should not be called.
- *
- * @param make_default
- * 	If set, the hpet timer becomes the default timer whose values are
- * 	returned by the rte_get_timer_hz/cycles API calls
- *
- * @return
- * 	0 on success,
- * 	-1 on error, and the make_default parameter is ignored.
- */
-int rte_eal_hpet_init(int make_default);
-
-#endif
-
-/**
- * Get the number of cycles since boot from the default timer.
- *
- * @return
- *   The number of cycles
- */
-static inline uint64_t
-rte_get_timer_cycles(void)
-{
-	switch(eal_timer_source) {
-	case EAL_TIMER_TSC:
-		return rte_rdtsc();
-	case EAL_TIMER_HPET:
-#ifdef RTE_LIBEAL_USE_HPET
-		return rte_get_hpet_cycles();
-#endif
-	default: rte_panic("Invalid timer source specified\n");
-	}
-}
-
-/**
- * Get the number of cycles in one second for the default timer.
- *
- * @return
- *   The number of cycles in one second.
- */
-static inline uint64_t
-rte_get_timer_hz(void)
-{
-	switch(eal_timer_source) {
-	case EAL_TIMER_TSC:
-		return rte_get_tsc_hz();
-	case EAL_TIMER_HPET:
-#ifdef RTE_LIBEAL_USE_HPET
-		return rte_get_hpet_hz();
-#endif
-	default: rte_panic("Invalid timer source specified\n");
-	}
-}
-
-/**
- * Wait at least us microseconds.
- *
- * @param us
- *   The number of microseconds to wait.
- */
-void
-rte_delay_us(unsigned us);
-
-/**
- * Wait at least ms milliseconds.
- *
- * @param ms
- *   The number of milliseconds to wait.
- */
-static inline void
-rte_delay_ms(unsigned ms)
-{
-	rte_delay_us(ms * 1000);
-}
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _RTE_CYCLES_H_ */
