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rte_cpuflags.h
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/*-
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* BSD LICENSE
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*
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* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _RTE_CPUFLAGS_H_
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#define _RTE_CPUFLAGS_H_
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <stdint.h>
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#ifdef __DOXYGEN__
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enum
rte_cpu_flag_t;
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#endif
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#ifdef __DOXYGEN__
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enum
cpu_register_t;
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#endif
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typedef
uint32_t cpuid_registers_t[4];
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#define CPU_FLAG_NAME_MAX_LEN 64
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struct
feature_entry
{
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uint32_t
leaf
;
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uint32_t
subleaf
;
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uint32_t
reg
;
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uint32_t
bit
;
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char
name
[CPU_FLAG_NAME_MAX_LEN];
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};
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#define FEAT_DEF(name, leaf, subleaf, reg, bit) \
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[RTE_CPUFLAG_##name] = {leaf, subleaf, reg, bit, #name },
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#ifdef __DOXYGEN__
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static
const
struct
feature_entry
cpu_feature_table
[];
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#endif
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static
inline
void
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rte_cpu_get_features
(uint32_t
leaf
, uint32_t
subleaf
, cpuid_registers_t out);
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#ifdef __DOXYGEN__
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static
inline
int
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rte_cpu_get_flag_enabled
(
enum
rte_cpu_flag_t feature);
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#endif
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void
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rte_cpu_check_supported
(
void
);
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#endif
/* _RTE_CPUFLAGS_H_ */
rte_cpu_get_features
static void rte_cpu_get_features(uint32_t leaf, uint32_t subleaf, cpuid_registers_t out)
feature_entry::leaf
uint32_t leaf
Definition:
rte_cpuflags.h:69
feature_entry::name
char name[CPU_FLAG_NAME_MAX_LEN]
Definition:
rte_cpuflags.h:73
cpu_feature_table
static struct feature_entry cpu_feature_table[]
Definition:
rte_cpuflags.h:85
rte_cpu_get_flag_enabled
static int rte_cpu_get_flag_enabled(enum rte_cpu_flag_t feature)
feature_entry::bit
uint32_t bit
Definition:
rte_cpuflags.h:72
feature_entry
Definition:
rte_cpuflags.h:68
rte_cpu_check_supported
void rte_cpu_check_supported(void)
feature_entry::subleaf
uint32_t subleaf
Definition:
rte_cpuflags.h:70
feature_entry::reg
uint32_t reg
Definition:
rte_cpuflags.h:71
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