From 90f6499cb2c6e94116f4c37a0994ac3490e369eb Mon Sep 17 00:00:00 2001 From: Jerin Jacob Date: Fri, 6 Nov 2015 15:10:22 +0530 Subject: [PATCH] eal/arm: add prefetch operations for ARMv8 Signed-off-by: Jerin Jacob --- .../common/include/arch/arm/rte_prefetch.h | 4 ++ .../common/include/arch/arm/rte_prefetch_64.h | 61 +++++++++++++++++++ 2 files changed, 65 insertions(+) create mode 100644 lib/librte_eal/common/include/arch/arm/rte_prefetch_64.h diff --git a/lib/librte_eal/common/include/arch/arm/rte_prefetch.h b/lib/librte_eal/common/include/arch/arm/rte_prefetch.h index 1f46697185..aa37de5701 100644 --- a/lib/librte_eal/common/include/arch/arm/rte_prefetch.h +++ b/lib/librte_eal/common/include/arch/arm/rte_prefetch.h @@ -33,6 +33,10 @@ #ifndef _RTE_PREFETCH_ARM_H_ #define _RTE_PREFETCH_ARM_H_ +#ifdef RTE_ARCH_64 +#include +#else #include +#endif #endif /* _RTE_PREFETCH_ARM_H_ */ diff --git a/lib/librte_eal/common/include/arch/arm/rte_prefetch_64.h b/lib/librte_eal/common/include/arch/arm/rte_prefetch_64.h new file mode 100644 index 0000000000..f9cc62ee89 --- /dev/null +++ b/lib/librte_eal/common/include/arch/arm/rte_prefetch_64.h @@ -0,0 +1,61 @@ +/* + * BSD LICENSE + * + * Copyright (C) Cavium networks Ltd. 2015. + * + * 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 Cavium networks 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_ARM_64_H_ +#define _RTE_PREFETCH_ARM_64_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include "generic/rte_prefetch.h" + +static inline void rte_prefetch0(const volatile void *p) +{ + asm volatile ("PRFM PLDL1KEEP, [%0]" : : "r" (p)); +} + +static inline void rte_prefetch1(const volatile void *p) +{ + asm volatile ("PRFM PLDL2KEEP, [%0]" : : "r" (p)); +} + +static inline void rte_prefetch2(const volatile void *p) +{ + asm volatile ("PRFM PLDL3KEEP, [%0]" : : "r" (p)); +} + +#ifdef __cplusplus +} +#endif + +#endif /* _RTE_PREFETCH_ARM_64_H_ */ -- 2.20.1