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1187583a97
- It should be fine to enable pmull always on Apple Silicon - macOS 12+ is required for PMULL instruction. - Changed the conditional macro to __APPLE__ - Rewritten dispatcher using sysctlbyname - Use __USER_LABEL_PREFIX__ - Use __TEXT,__const as readonly section - use ASM_DEF_RODATA macro - fix func decl Change-Id: I800593f21085d8187b480c8bb3ab2bd70c4a6974 Signed-off-by: Taiju Yamada <tyamada@bi.a.u-tokyo.ac.jp>
42 lines
2.0 KiB
C
42 lines
2.0 KiB
C
/**********************************************************************
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Copyright(c) 2019 Arm Corporation All rights reserved.
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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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* 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 Arm 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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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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#include <aarch64_multibinary.h>
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DEFINE_INTERFACE_DISPATCHER(isal_zero_detect)
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{
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#if defined(__linux__)
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unsigned long auxval = getauxval(AT_HWCAP);
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if (auxval & HWCAP_ASIMD)
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return PROVIDER_INFO(mem_zero_detect_neon);
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#elif defined(__APPLE__)
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return PROVIDER_INFO(mem_zero_detect_neon);
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#endif
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return PROVIDER_BASIC(mem_zero_detect);
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}
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