From: Jan Viktorin <viktorin@rehivetech.com>
To: Thomas Monjalon <thomas.monjalon@6wind.com>,
David Hunt <david.hunt@intel.com>,
dev@dpdk.org
Cc: Vlastimil Kosar <kosar@rehivetech.com>
Subject: [dpdk-dev] [PATCH v2 03/16] eal/arm: byte order operations for ARM
Date: Mon, 26 Oct 2015 17:37:25 +0100 [thread overview]
Message-ID: <1445877458-31052-4-git-send-email-viktorin@rehivetech.com> (raw)
In-Reply-To: <1445877458-31052-1-git-send-email-viktorin@rehivetech.com>
From: Vlastimil Kosar <kosar@rehivetech.com>
This patch adds architecture specific byte order operations
for ARM. The architecture supports both big and little endian.
Signed-off-by: Vlastimil Kosar <kosar@rehivetech.com>
Signed-off-by: Jan Viktorin <viktorin@rehivetech.com>
---
.../common/include/arch/arm/rte_byteorder.h | 148 +++++++++++++++++++++
1 file changed, 148 insertions(+)
create mode 100644 lib/librte_eal/common/include/arch/arm/rte_byteorder.h
diff --git a/lib/librte_eal/common/include/arch/arm/rte_byteorder.h b/lib/librte_eal/common/include/arch/arm/rte_byteorder.h
new file mode 100644
index 0000000..04e7b87
--- /dev/null
+++ b/lib/librte_eal/common/include/arch/arm/rte_byteorder.h
@@ -0,0 +1,148 @@
+/*
+ * 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_BYTEORDER_ARM_H_
+#define _RTE_BYTEORDER_ARM_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "generic/rte_byteorder.h"
+
+/*
+ * An architecture-optimized byte swap for a 16-bit value.
+ *
+ * Do not use this function directly. The preferred function is rte_bswap16().
+ */
+static inline uint16_t rte_arch_bswap16(uint16_t _x)
+{
+ register uint16_t x = _x;
+ asm volatile ("rev16 %[x1],%[x2]"
+ : [x1] "=r" (x)
+ : [x2] "r" (x)
+ );
+ return x;
+}
+
+/*
+ * An architecture-optimized byte swap for a 32-bit value.
+ *
+ * Do not use this function directly. The preferred function is rte_bswap32().
+ */
+static inline uint32_t rte_arch_bswap32(uint32_t _x)
+{
+ register uint32_t x = _x;
+ asm volatile ("rev %[x1],%[x2]"
+ : [x1] "=r" (x)
+ : [x2] "r" (x)
+ );
+ return x;
+}
+
+/*
+ * An architecture-optimized byte swap for a 64-bit value.
+ *
+ * Do not use this function directly. The preferred function is rte_bswap64().
+ */
+/* 64-bit mode */
+static inline uint64_t rte_arch_bswap64(uint64_t _x)
+{
+ return __builtin_bswap64(_x);
+}
+
+#ifndef RTE_FORCE_INTRINSICS
+#define rte_bswap16(x) ((uint16_t)(__builtin_constant_p(x) ? \
+ rte_constant_bswap16(x) : \
+ rte_arch_bswap16(x)))
+
+#define rte_bswap32(x) ((uint32_t)(__builtin_constant_p(x) ? \
+ rte_constant_bswap32(x) : \
+ rte_arch_bswap32(x)))
+
+#define rte_bswap64(x) ((uint64_t)(__builtin_constant_p(x) ? \
+ rte_constant_bswap64(x) : \
+ rte_arch_bswap64(x)))
+#else
+/*
+ * __builtin_bswap16 is only available gcc 4.8 and upwards
+ */
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 8)
+#define rte_bswap16(x) ((uint16_t)(__builtin_constant_p(x) ? \
+ rte_constant_bswap16(x) : \
+ rte_arch_bswap16(x)))
+#endif
+#endif
+
+/* ARM architecture is bi-endian (both big and little). */
+#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
+
+#define rte_cpu_to_le_16(x) (x)
+#define rte_cpu_to_le_32(x) (x)
+#define rte_cpu_to_le_64(x) (x)
+
+#define rte_cpu_to_be_16(x) rte_bswap16(x)
+#define rte_cpu_to_be_32(x) rte_bswap32(x)
+#define rte_cpu_to_be_64(x) rte_bswap64(x)
+
+#define rte_le_to_cpu_16(x) (x)
+#define rte_le_to_cpu_32(x) (x)
+#define rte_le_to_cpu_64(x) (x)
+
+#define rte_be_to_cpu_16(x) rte_bswap16(x)
+#define rte_be_to_cpu_32(x) rte_bswap32(x)
+#define rte_be_to_cpu_64(x) rte_bswap64(x)
+
+#else /* RTE_BIG_ENDIAN */
+
+#define rte_cpu_to_le_16(x) rte_bswap16(x)
+#define rte_cpu_to_le_32(x) rte_bswap32(x)
+#define rte_cpu_to_le_64(x) rte_bswap64(x)
+
+#define rte_cpu_to_be_16(x) (x)
+#define rte_cpu_to_be_32(x) (x)
+#define rte_cpu_to_be_64(x) (x)
+
+#define rte_le_to_cpu_16(x) rte_bswap16(x)
+#define rte_le_to_cpu_32(x) rte_bswap32(x)
+#define rte_le_to_cpu_64(x) rte_bswap64(x)
+
+#define rte_be_to_cpu_16(x) (x)
+#define rte_be_to_cpu_32(x) (x)
+#define rte_be_to_cpu_64(x) (x)
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_BYTEORDER_ARM_H_ */
--
2.6.1
next prev parent reply other threads:[~2015-10-26 16:39 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-26 16:37 [dpdk-dev] [PATCH v2 00/16] Support ARMv7 architecture Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 01/16] mk: Introduce " Jan Viktorin
2015-10-28 13:34 ` David Marchand
2015-10-28 17:32 ` Jan Viktorin
2015-10-28 17:36 ` Richardson, Bruce
2015-10-28 13:39 ` David Marchand
2015-10-28 17:32 ` Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 02/16] eal/arm: atomic operations for ARM Jan Viktorin
2015-10-26 16:37 ` Jan Viktorin [this message]
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 04/16] eal/arm: cpu cycle " Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 05/16] eal/arm: implement rdtsc by PMU or clock_gettime Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 06/16] eal/arm: prefetch operations for ARM Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 07/16] eal/arm: spinlock operations for ARM (without HTM) Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 08/16] eal/arm: vector memcpy for ARM Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 09/16] eal/arm: use vector memcpy only when NEON is enabled Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 10/16] eal/arm: cpu flag checks for ARM Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 11/16] eal/arm: detect arm architecture in cpu flags Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 12/16] eal/arm: rwlock support for ARM Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 13/16] gcc/arm: avoid alignment errors to break build Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 14/16] maintainers: claim responsibility for ARMv7 Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 15/16] lpm/arm: implement rte_lpm_lookupx4 using rte_lpm_lookup_bulk on for-x86 Jan Viktorin
2015-10-27 15:31 ` Ananyev, Konstantin
2015-10-27 15:38 ` Jan Viktorin
2015-10-26 16:37 ` [dpdk-dev] [PATCH v2 16/16] acl: check for SSE 4.1 support Jan Viktorin
2015-10-27 15:55 ` Ananyev, Konstantin
2015-10-27 17:10 ` Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 00/17] Support ARMv7 architecture Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 01/17] mk: Introduce " Jan Viktorin
2015-10-28 10:09 ` David Marchand
2015-10-28 10:56 ` Jan Viktorin
2015-10-28 13:40 ` David Marchand
2015-10-28 13:44 ` Hunt, David
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 02/17] eal/arm: atomic operations for ARM Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 03/17] eal/arm: byte order " Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 04/17] eal/arm: cpu cycle " Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 05/17] eal/arm: implement rdtsc by PMU or clock_gettime Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 06/17] eal/arm: prefetch operations for ARM Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 07/17] eal/arm: spinlock operations for ARM (without HTM) Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 08/17] eal/arm: vector memcpy for ARM Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 09/17] eal/arm: use vector memcpy only when NEON is enabled Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 10/17] eal/arm: cpu flag checks for ARM Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 11/17] eal/arm: detect arm architecture in cpu flags Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 12/17] eal/arm: rwlock support for ARM Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 13/17] gcc/arm: avoid alignment errors to break build Jan Viktorin
2015-10-28 12:16 ` David Marchand
2015-10-28 17:34 ` Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 14/17] maintainers: claim responsibility for ARMv7 Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 15/17] eal/arm: add very incomplete rte_vect Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 16/17] lpm/arm: implement rte_lpm_lookupx4 using rte_lpm_lookup_bulk for non-x86 Jan Viktorin
2015-10-27 19:13 ` [dpdk-dev] [PATCH v3 17/17] acl: handle when SSE 4.1 is unsupported Jan Viktorin
2015-10-28 14:54 ` [dpdk-dev] [PATCH v3 00/17] Support ARMv7 architecture David Marchand
2015-10-28 17:38 ` Jan Viktorin
2015-10-28 17:58 ` David Marchand
2015-10-29 14:02 ` Thomas Monjalon
2015-10-29 14:09 ` Jan Viktorin
2015-10-29 15:02 ` Thomas Monjalon
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 00/15] " Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 01/15] eal/arm: atomic operations for ARM Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 02/15] eal/arm: byte order " Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 03/15] eal/arm: cpu cycle " Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 04/15] eal/arm: implement rdtsc by PMU or clock_gettime Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 05/15] eal/arm: prefetch operations for ARM Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 06/15] eal/arm: spinlock operations for ARM (without HTM) Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 07/15] eal/arm: vector memcpy for ARM Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 08/15] eal/arm: use vector memcpy only when NEON is enabled Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 09/15] eal/arm: cpu flag checks for ARM Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 10/15] eal/arm: detect arm architecture in cpu flags Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 11/15] eal/arm: rwlock support for ARM Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 12/15] eal/arm: add very incomplete rte_vect Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 13/15] gcc/arm: avoid alignment errors to break build Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 14/15] mk: Introduce ARMv7 architecture Jan Viktorin
2015-10-29 12:43 ` [dpdk-dev] [PATCH v4 15/15] maintainers: claim responsibility for ARMv7 Jan Viktorin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1445877458-31052-4-git-send-email-viktorin@rehivetech.com \
--to=viktorin@rehivetech.com \
--cc=david.hunt@intel.com \
--cc=dev@dpdk.org \
--cc=kosar@rehivetech.com \
--cc=thomas.monjalon@6wind.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).