ref: 8e8fb84dcda63e83671a41235f2d71e726a2e716
dir: /src/cpu.c/
/*
* 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 ARCH_X86
/* Disable AVX-512 by default for the time being */
static unsigned flags_mask = ~DAV1D_X86_CPU_FLAG_AVX512ICL;
#else
static 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;
}