mirror of https://github.com/F-Stack/f-stack.git
51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright(c) 2010-2015 Intel Corporation
|
|
*/
|
|
|
|
#ifndef _RTE_PREFETCH_X86_64_H_
|
|
#define _RTE_PREFETCH_X86_64_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <rte_common.h>
|
|
#include "generic/rte_prefetch.h"
|
|
|
|
static inline void rte_prefetch0(const volatile void *p)
|
|
{
|
|
asm volatile ("prefetcht0 %[p]" : : [p] "m" (*(const volatile char *)p));
|
|
}
|
|
|
|
static inline void rte_prefetch1(const volatile void *p)
|
|
{
|
|
asm volatile ("prefetcht1 %[p]" : : [p] "m" (*(const volatile char *)p));
|
|
}
|
|
|
|
static inline void rte_prefetch2(const volatile void *p)
|
|
{
|
|
asm volatile ("prefetcht2 %[p]" : : [p] "m" (*(const volatile char *)p));
|
|
}
|
|
|
|
static inline void rte_prefetch_non_temporal(const volatile void *p)
|
|
{
|
|
asm volatile ("prefetchnta %[p]" : : [p] "m" (*(const volatile char *)p));
|
|
}
|
|
|
|
/*
|
|
* We use raw byte codes for now as only the newest compiler
|
|
* versions support this instruction natively.
|
|
*/
|
|
__rte_experimental
|
|
static inline void
|
|
rte_cldemote(const volatile void *p)
|
|
{
|
|
asm volatile(".byte 0x0f, 0x1c, 0x06" :: "S" (p));
|
|
}
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _RTE_PREFETCH_X86_64_H_ */
|