36 lines
673 B
C
36 lines
673 B
C
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/*
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* SPDX-License-Identifier: GPL-2.0-or-later
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* Host specific cpu identification for LoongArch.
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*/
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#include "qemu/osdep.h"
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#include "host/cpuinfo.h"
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#ifdef CONFIG_GETAUXVAL
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# include <sys/auxv.h>
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#else
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# include "elf.h"
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#endif
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#include <asm/hwcap.h>
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unsigned cpuinfo;
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/* Called both as constructor and (possibly) via other constructors. */
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unsigned __attribute__((constructor)) cpuinfo_init(void)
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{
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unsigned info = cpuinfo;
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unsigned long hwcap;
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if (info) {
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return info;
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}
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hwcap = qemu_getauxval(AT_HWCAP);
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info = CPUINFO_ALWAYS;
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info |= (hwcap & HWCAP_LOONGARCH_LSX ? CPUINFO_LSX : 0);
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cpuinfo = info;
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return info;
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}
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