From: Jan Viktorin <viktorin@rehivetech.com>
To: david.marchand@6wind.com, David Hunt <david.hunt@intel.com>,
Thomas Monjalon <thomas.monjalon@6wind.com>
Cc: Vlastimil Kosar <kosar@rehivetech.com>, dev@dpdk.org
Subject: [dpdk-dev] [PATCH v5 06/15] eal/arm: spinlock operations for ARM (without HTM)
Date: Fri, 30 Oct 2015 01:25:33 +0100 [thread overview]
Message-ID: <1446164742-29546-7-git-send-email-viktorin@rehivetech.com> (raw)
In-Reply-To: <1446164742-29546-1-git-send-email-viktorin@rehivetech.com>
From: Vlastimil Kosar <kosar@rehivetech.com>
This patch adds spinlock operations for ARM architecture.
We do not support HTM in spinlocks on ARM.
Signed-off-by: Vlastimil Kosar <kosar@rehivetech.com>
Signed-off-by: Jan Viktorin <viktorin@rehivetech.com>
---
.../common/include/arch/arm/rte_spinlock.h | 114 +++++++++++++++++++++
1 file changed, 114 insertions(+)
create mode 100644 lib/librte_eal/common/include/arch/arm/rte_spinlock.h
diff --git a/lib/librte_eal/common/include/arch/arm/rte_spinlock.h b/lib/librte_eal/common/include/arch/arm/rte_spinlock.h
new file mode 100644
index 0000000..cd5ab8b
--- /dev/null
+++ b/lib/librte_eal/common/include/arch/arm/rte_spinlock.h
@@ -0,0 +1,114 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 RehiveTech. 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 RehiveTech 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_SPINLOCK_ARM_H_
+#define _RTE_SPINLOCK_ARM_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rte_common.h>
+#include "generic/rte_spinlock.h"
+
+/* Intrinsics are used to implement the spinlock on ARM architecture */
+
+#ifndef RTE_FORCE_INTRINSICS
+
+static inline void
+rte_spinlock_lock(rte_spinlock_t *sl)
+{
+ while (__sync_lock_test_and_set(&sl->locked, 1))
+ while (sl->locked)
+ rte_pause();
+}
+
+static inline void
+rte_spinlock_unlock(rte_spinlock_t *sl)
+{
+ __sync_lock_release(&sl->locked);
+}
+
+static inline int
+rte_spinlock_trylock(rte_spinlock_t *sl)
+{
+ return (__sync_lock_test_and_set(&sl->locked, 1) == 0);
+}
+
+#endif
+
+static inline int rte_tm_supported(void)
+{
+ return 0;
+}
+
+static inline void
+rte_spinlock_lock_tm(rte_spinlock_t *sl)
+{
+ rte_spinlock_lock(sl); /* fall-back */
+}
+
+static inline int
+rte_spinlock_trylock_tm(rte_spinlock_t *sl)
+{
+ return rte_spinlock_trylock(sl);
+}
+
+static inline void
+rte_spinlock_unlock_tm(rte_spinlock_t *sl)
+{
+ rte_spinlock_unlock(sl);
+}
+
+static inline void
+rte_spinlock_recursive_lock_tm(rte_spinlock_recursive_t *slr)
+{
+ rte_spinlock_recursive_lock(slr); /* fall-back */
+}
+
+static inline void
+rte_spinlock_recursive_unlock_tm(rte_spinlock_recursive_t *slr)
+{
+ rte_spinlock_recursive_unlock(slr);
+}
+
+static inline int
+rte_spinlock_recursive_trylock_tm(rte_spinlock_recursive_t *slr)
+{
+ return rte_spinlock_recursive_trylock(slr);
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_SPINLOCK_ARM_H_ */
--
2.6.1
next prev parent reply other threads:[~2015-10-30 0:27 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-29 17:29 [dpdk-dev] [PATCH 0/5] ARMv8 additions to ARMv7 support David Hunt
2015-10-29 17:29 ` [dpdk-dev] [PATCH 1/5] eal: split arm rte_memcpy.h into 32-bit and 64-bit versions David Hunt
2015-10-29 17:29 ` [dpdk-dev] [PATCH 2/5] eal: split arm rte_prefetch.h " David Hunt
2015-10-29 17:29 ` [dpdk-dev] [PATCH 3/5] eal: fix compilation for armv8 64-bit David Hunt
2015-10-29 17:38 ` Jan Viktorin
2015-10-29 17:29 ` [dpdk-dev] [PATCH 4/5] mk: add support for armv8 on top of armv7 David Hunt
2015-10-29 17:39 ` Jan Viktorin
2015-10-29 17:42 ` Jan Viktorin
2015-10-29 17:29 ` [dpdk-dev] [PATCH 5/5] test: add checks for cpu flags on armv8 David Hunt
2015-10-29 18:27 ` [dpdk-dev] [PATCH 0/5] ARMv8 additions to ARMv7 support Thomas Monjalon
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 00/15] Support ARMv7 architecture Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 01/15] eal/arm: atomic operations for ARM Jan Viktorin
2015-11-02 5:53 ` Jerin Jacob
2015-11-02 13:00 ` Jan Viktorin
2015-11-02 13:10 ` Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 02/15] eal/arm: byte order " Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 03/15] eal/arm: cpu cycle " Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 04/15] eal/arm: implement rdtsc by PMU or clock_gettime Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 05/15] eal/arm: prefetch operations for ARM Jan Viktorin
2015-10-30 0:25 ` Jan Viktorin [this message]
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 07/15] eal/arm: vector memcpy " Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 08/15] eal/arm: use vector memcpy only when NEON is enabled Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 09/15] eal/arm: cpu flag checks for ARM Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 10/15] eal/arm: detect arm architecture in cpu flags Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 11/15] eal/arm: rwlock support for ARM Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 12/15] eal/arm: add very incomplete rte_vect Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 13/15] gcc/arm: avoid alignment errors to break build Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 14/15] mk: Introduce ARMv7 architecture Jan Viktorin
2015-10-30 0:25 ` [dpdk-dev] [PATCH v5 15/15] maintainers: claim responsibility for ARMv7 Jan Viktorin
2015-10-30 0:17 ` [dpdk-dev] [PATCH 0/5] ARMv8 additions to ARMv7 support Jan Viktorin
2015-10-30 8:52 ` Hunt, David
2015-10-30 10:48 ` Jan Viktorin
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