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From: Jerin Jacob <jerin.jacob@caviumnetworks.com>
To: Jan Viktorin <viktorin@rehivetech.com>, Gavin Hu <gavin.hu@arm.com>
Cc: dev@dpdk.org, thomas@monjalon.net, ola.liljedahl@arm.com,
	Jerin Jacob <jerin.jacob@caviumnetworks.com>
Subject: [dpdk-dev]  [PATCH] eal/armv7: add support for rte pause
Date: Sun,  7 Oct 2018 12:01:27 +0530	[thread overview]
Message-ID: <20181007063127.27960-1-jerin.jacob@caviumnetworks.com> (raw)

Add support for rte_pause() implementation for armv7.

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
---

The reference implementation for Linux's cpu_relax() for armv7 is at
https://elixir.bootlin.com/linux/latest/source/arch/arm/include/asm/processor.h#L100

---
 lib/librte_eal/common/include/arch/arm/rte_pause_32.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/librte_eal/common/include/arch/arm/rte_pause_32.h b/lib/librte_eal/common/include/arch/arm/rte_pause_32.h
index d4768c7a9..9b856e0cf 100644
--- a/lib/librte_eal/common/include/arch/arm/rte_pause_32.h
+++ b/lib/librte_eal/common/include/arch/arm/rte_pause_32.h
@@ -9,11 +9,13 @@
 extern "C" {
 #endif
 
-#include <rte_common.h>
+#include <rte_atomic.h>
+
 #include "generic/rte_pause.h"
 
 static inline void rte_pause(void)
 {
+	rte_compiler_barrier();
 }
 
 #ifdef __cplusplus
-- 
2.19.0

             reply	other threads:[~2018-10-07  6:31 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-07  6:31 Jerin Jacob [this message]
2018-10-07 21:09 ` Ola Liljedahl
2018-10-08  6:27   ` Jerin Jacob
2018-10-08  8:25     ` Ola Liljedahl
2018-10-08  8:41       ` Jerin Jacob
2018-10-08 10:51         ` Ola Liljedahl

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