From 97f17497d162afdb82c8704bf097f0fee3724b2e Mon Sep 17 00:00:00 2001 From: "C.J. Collier" Date: Tue, 14 Jun 2016 07:50:17 -0700 Subject: Imported Upstream version 16.04 Change-Id: I77eadcd8538a9122e4773cbe55b24033dc451757 Signed-off-by: C.J. Collier --- .../common/include/generic/rte_cpuflags.h | 82 ++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 lib/librte_eal/common/include/generic/rte_cpuflags.h (limited to 'lib/librte_eal/common/include/generic/rte_cpuflags.h') diff --git a/lib/librte_eal/common/include/generic/rte_cpuflags.h b/lib/librte_eal/common/include/generic/rte_cpuflags.h new file mode 100644 index 00000000..c1da357c --- /dev/null +++ b/lib/librte_eal/common/include/generic/rte_cpuflags.h @@ -0,0 +1,82 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * 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 Intel 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_CPUFLAGS_H_ +#define _RTE_CPUFLAGS_H_ + +/** + * @file + * Architecture specific API to determine available CPU features at runtime. + */ + +#include + +/** + * Enumeration of all CPU features supported + */ +enum rte_cpu_flag_t; + +/** + * Get name of CPU flag + * + * @param feature + * CPU flag ID + * @return + * flag name + * NULL if flag ID is invalid + */ +const char * +rte_cpu_get_flag_name(enum rte_cpu_flag_t feature); + +/** + * Function for checking a CPU flag availability + * + * @param feature + * CPU flag to query CPU for + * @return + * 1 if flag is available + * 0 if flag is not available + * -ENOENT if flag is invalid + */ +int +rte_cpu_get_flag_enabled(enum rte_cpu_flag_t feature); + +/** + * This function checks that the currently used CPU supports the CPU features + * that were specified at compile time. It is called automatically within the + * EAL, so does not need to be used by applications. + */ +void +rte_cpu_check_supported(void); + +#endif /* _RTE_CPUFLAGS_H_ */ -- cgit 1.2.3-korg