/* * Copyright © 2018, VideoLAN and dav1d authors * Copyright © 2018, Two Orioles, LLC * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this *    list of conditions and the following disclaimer. * * 2. 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. * * 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. */#include "config.h" #include <stdint.h> #include "src/cpu.h" static unsigned flags = 0; #if __has_feature(memory_sanitizer)// memory sanitizer is inherently incompatible with asmstatic unsigned flags_mask = 0;#elif ARCH_X86/* Disable AVX-512 by default for the time being */static unsigned flags_mask = ~DAV1D_X86_CPU_FLAG_AVX512ICL;#elsestatic unsigned flags_mask = -1;#endif COLD void dav1d_init_cpu(void) {#if HAVE_ASM#if ARCH_AARCH64 || ARCH_ARM    flags = dav1d_get_cpu_flags_arm();#elif ARCH_PPC64LE    flags = dav1d_get_cpu_flags_ppc();#elif ARCH_X86    flags = dav1d_get_cpu_flags_x86();#endif#endif} COLD unsigned dav1d_get_cpu_flags(void) {    return flags & flags_mask;} COLD void dav1d_set_cpu_flags_mask(const unsigned mask) {    flags_mask = mask;}