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eal: add const in prefetch functions

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rte_prefetchX functions included volatile void *p as parameter,
but the function does not modify it,
so it should include the const keyword.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
This commit is contained in:
Pablo de Lara 2015-07-08 10:51:33 +01:00 committed by Thomas Monjalon
parent 2be3d6322b
commit 7c5d0cc915
3 changed files with 14 additions and 14 deletions
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6
lib/librte_eal/common/include/arch/ppc_64/rte_prefetch.h
View File

@ -39,17 +39,17 @@ extern "C" {
#include "generic/rte_prefetch.h"
static inline void rte_prefetch0(volatile void *p)
static inline void rte_prefetch0(const volatile void *p)
{
asm volatile ("dcbt 0,%[p],1" : : [p] "r" (p));
}
static inline void rte_prefetch1(volatile void *p)
static inline void rte_prefetch1(const volatile void *p)
{
asm volatile ("dcbt 0,%[p],1" : : [p] "r" (p));
}
static inline void rte_prefetch2(volatile void *p)
static inline void rte_prefetch2(const volatile void *p)
{
asm volatile ("dcbt 0,%[p],1" : : [p] "r" (p));
}

14
lib/librte_eal/common/include/arch/x86/rte_prefetch.h
View File

@ -1,7 +1,7 @@
/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -40,19 +40,19 @@ extern "C" {
#include "generic/rte_prefetch.h"
static inline void rte_prefetch0(volatile void *p)
static inline void rte_prefetch0(const volatile void *p)
{
asm volatile ("prefetcht0 %[p]" : [p] "+m" (*(volatile char *)p));
asm volatile ("prefetcht0 %[p]" : : [p] "m" (*(const volatile char *)p));
}
static inline void rte_prefetch1(volatile void *p)
static inline void rte_prefetch1(const volatile void *p)
{
asm volatile ("prefetcht1 %[p]" : [p] "+m" (*(volatile char *)p));
asm volatile ("prefetcht1 %[p]" : : [p] "m" (*(const volatile char *)p));
}
static inline void rte_prefetch2(volatile void *p)
static inline void rte_prefetch2(const volatile void *p)
{
asm volatile ("prefetcht2 %[p]" : [p] "+m" (*(volatile char *)p));
asm volatile ("prefetcht2 %[p]" : : [p] "m" (*(const volatile char *)p));
}
#ifdef __cplusplus

8
lib/librte_eal/common/include/generic/rte_prefetch.h
View File

@ -1,7 +1,7 @@
/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -51,14 +51,14 @@
* @param p
* Address to prefetch
*/
static inline void rte_prefetch0(volatile void *p);
static inline void rte_prefetch0(const volatile void *p);
/**
* Prefetch a cache line into all cache levels except the 0th cache level.
* @param p
* Address to prefetch
*/
static inline void rte_prefetch1(volatile void *p);
static inline void rte_prefetch1(const volatile void *p);
/**
* Prefetch a cache line into all cache levels except the 0th and 1th cache
@ -66,6 +66,6 @@ static inline void rte_prefetch1(volatile void *p);
* @param p
* Address to prefetch
*/
static inline void rte_prefetch2(volatile void *p);
static inline void rte_prefetch2(const volatile void *p);
#endif /* _RTE_PREFETCH_H_ */