From 529c7f5c8c57fb5996e2d155a6d54f6d19c60a20 Mon Sep 17 00:00:00 2001 From: Chao Zhu Date: Tue, 25 Nov 2014 17:17:08 -0500 Subject: [PATCH] eal/ppc: prefetch operations for IBM Power This patch add architecture specific prefetch operations for IBM Power architecture. Signed-off-by: Chao Zhu Acked-by: David Marchand --- .../common/include/arch/ppc_64/rte_prefetch.h | 61 +++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 lib/librte_eal/common/include/arch/ppc_64/rte_prefetch.h diff --git a/lib/librte_eal/common/include/arch/ppc_64/rte_prefetch.h b/lib/librte_eal/common/include/arch/ppc_64/rte_prefetch.h new file mode 100644 index 0000000000..9df0d13c94 --- /dev/null +++ b/lib/librte_eal/common/include/arch/ppc_64/rte_prefetch.h @@ -0,0 +1,61 @@ +/* + * BSD LICENSE + * + * Copyright (C) IBM Corporation 2014. + * + * 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 IBM 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. +*/ + +#ifndef _RTE_PREFETCH_PPC_64_H_ +#define _RTE_PREFETCH_PPC_64_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "generic/rte_prefetch.h" + +static inline void rte_prefetch0(volatile void *p) +{ + asm volatile ("dcbt 0,%[p],1" : : [p] "r" (p)); +} + +static inline void rte_prefetch1(volatile void *p) +{ + asm volatile ("dcbt 0,%[p],1" : : [p] "r" (p)); +} + +static inline void rte_prefetch2(volatile void *p) +{ + asm volatile ("dcbt 0,%[p],1" : : [p] "r" (p)); +} + +#ifdef __cplusplus +} +#endif + +#endif /* _RTE_PREFETCH_PPC_64_H_ */ -- 2.20.1