1 /******************************************************************************* 2 Copyright (c) 2018-2020, Intel Corporation 3 4 Redistribution and use in source and binary forms, with or without 5 modification, are permitted provided that the following conditions are met: 6 7 * Redistributions of source code must retain the above copyright notice, 8 this list of conditions and the following disclaimer. 9 * Redistributions in binary form must reproduce the above copyright 10 notice, this list of conditions and the following disclaimer in the 11 documentation and/or other materials provided with the distribution. 12 * Neither the name of Intel Corporation nor the names of its contributors 13 may be used to endorse or promote products derived from this software 14 without specific prior written permission. 15 16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE 20 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 22 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 23 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 *******************************************************************************/ 27 28 #include "intel-ipsec-mb.h" 29 30 #ifndef CPU_FEATURE_H 31 #define CPU_FEATURE_H 32 33 /** 34 * @brief Detects hardware features and returns their status 35 * 36 * @return Bitmask representing presence of CPU features/extensions, 37 * see intel-ipsec-mb.h IMB_FEATURE_xyz definitions for details. 38 */ 39 IMB_DLL_LOCAL uint64_t cpu_feature_detect(void); 40 41 /** 42 * @brief Modifies CPU \a features mask based on requested \a flags 43 * 44 * @param flags bitmask describing CPU feature adjustments 45 * @param features bitmask describing present CPU features 46 * 47 * @return \a features with applied modifications on them via \a flags 48 */ 49 IMB_DLL_LOCAL uint64_t 50 cpu_feature_adjust(const uint64_t flags, uint64_t features); 51 52 #endif /* CPU_FEATURE_H */ 53