/*
* Copyright © 2023 , VideoLAN and dav1d authors
* 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 "common/attributes.h"
#include "src/cpu.h"
#include "src/loongarch/cpu.h"
#if HAVE_GETAUXVAL
#include <sys/auxv.h>
#define LA_HWCAP_LSX ( 1 << 4 )
#define LA_HWCAP_LASX ( 1 << 5 )
#endif
COLD unsigned dav1d_get_cpu_flags_loongarch(void ) {
unsigned flags = dav1d_get_default_cpu_flags();
#if HAVE_GETAUXVAL
unsigned long hw_cap = dav1d_getauxval(AT_HWCAP);
flags |= (hw_cap & LA_HWCAP_LSX) ? DAV1D_LOONGARCH_CPU_FLAG_LSX : 0 ;
flags |= (hw_cap & LA_HWCAP_LASX) ? DAV1D_LOONGARCH_CPU_FLAG_LASX : 0 ;
#endif
return flags;
}
Messung V0.5 in Prozent C=98 H=100 G=98
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