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6e42be7cd1
A transition from CPUFooState to FooCPU can be considered safe,
just like FooCPU::env access in the opposite direction.
The only benefit of the FOO_CPU() casts would be protection against
bogus CPUFooState pointers, but then surrounding code would likely
break, too.
This should slightly improve interrupt etc. performance when going from
CPUFooState to FooCPU.
For any additional CPU() casts see 3556c233d9
(qom: allow turning cast debugging off).
Reported-by: Anthony Liguori <aliguori@us.ibm.com>
Acked-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Andreas Färber <afaerber@suse.de>
88 lines
2.9 KiB
C
88 lines
2.9 KiB
C
/*
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* QEMU Xtensa CPU
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*
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* Copyright (c) 2012 SUSE LINUX Products GmbH
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the Open Source and Linux Lab nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef QEMU_XTENSA_CPU_QOM_H
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#define QEMU_XTENSA_CPU_QOM_H
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#include "qom/cpu.h"
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#include "cpu.h"
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#define TYPE_XTENSA_CPU "xtensa-cpu"
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#define XTENSA_CPU_CLASS(class) \
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OBJECT_CLASS_CHECK(XtensaCPUClass, (class), TYPE_XTENSA_CPU)
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#define XTENSA_CPU(obj) \
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OBJECT_CHECK(XtensaCPU, (obj), TYPE_XTENSA_CPU)
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#define XTENSA_CPU_GET_CLASS(obj) \
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OBJECT_GET_CLASS(XtensaCPUClass, (obj), TYPE_XTENSA_CPU)
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/**
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* XtensaCPUClass:
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* @parent_realize: The parent class' realize handler.
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* @parent_reset: The parent class' reset handler.
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*
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* An Xtensa CPU model.
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*/
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typedef struct XtensaCPUClass {
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/*< private >*/
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CPUClass parent_class;
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/*< public >*/
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DeviceRealize parent_realize;
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void (*parent_reset)(CPUState *cpu);
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} XtensaCPUClass;
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/**
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* XtensaCPU:
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* @env: #CPUXtensaState
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*
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* An Xtensa CPU.
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*/
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typedef struct XtensaCPU {
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/*< private >*/
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CPUState parent_obj;
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/*< public >*/
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CPUXtensaState env;
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} XtensaCPU;
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static inline XtensaCPU *xtensa_env_get_cpu(const CPUXtensaState *env)
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{
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return container_of(env, XtensaCPU, env);
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}
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#define ENV_GET_CPU(e) CPU(xtensa_env_get_cpu(e))
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#define ENV_OFFSET offsetof(XtensaCPU, env)
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void xtensa_cpu_do_interrupt(CPUState *cpu);
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void xtensa_cpu_dump_state(CPUState *cpu, FILE *f,
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fprintf_function cpu_fprintf, int flags);
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#endif
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