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b1cef6d02f
We dropped support for ia64 host CPUs in the 2.11 release (removing the TCG backend for it, and advertising the support as being completely removed in the changelog). However there are a few bits and pieces of code still floating about. Remove those, too. We can drop the check in configure for "ia64 or hppa host?" entirely, because we don't support hppa hosts either any more. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <1516897189-11035-1-git-send-email-peter.maydell@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
28 lines
712 B
C
28 lines
712 B
C
/*
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* Copyright (C) 2016, Emilio G. Cota <cota@braap.org>
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*
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* License: GNU GPL, version 2.
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* See the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_PROCESSOR_H
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#define QEMU_PROCESSOR_H
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#include "qemu/atomic.h"
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#if defined(__i386__) || defined(__x86_64__)
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# define cpu_relax() asm volatile("rep; nop" ::: "memory")
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#elif defined(__aarch64__)
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# define cpu_relax() asm volatile("yield" ::: "memory")
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#elif defined(__powerpc64__)
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/* set Hardware Multi-Threading (HMT) priority to low; then back to medium */
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# define cpu_relax() asm volatile("or 1, 1, 1;" \
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"or 2, 2, 2;" ::: "memory")
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#else
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# define cpu_relax() barrier()
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#endif
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#endif /* QEMU_PROCESSOR_H */
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