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>
86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
/*
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* QEMU Alpha CPU
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*
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* Copyright (c) 2012 SUSE LINUX Products GmbH
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see
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* <http://www.gnu.org/licenses/lgpl-2.1.html>
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*/
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#ifndef QEMU_ALPHA_CPU_QOM_H
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#define QEMU_ALPHA_CPU_QOM_H
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#include "qom/cpu.h"
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#include "cpu.h"
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#define TYPE_ALPHA_CPU "alpha-cpu"
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#define ALPHA_CPU_CLASS(klass) \
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OBJECT_CLASS_CHECK(AlphaCPUClass, (klass), TYPE_ALPHA_CPU)
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#define ALPHA_CPU(obj) \
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OBJECT_CHECK(AlphaCPU, (obj), TYPE_ALPHA_CPU)
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#define ALPHA_CPU_GET_CLASS(obj) \
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OBJECT_GET_CLASS(AlphaCPUClass, (obj), TYPE_ALPHA_CPU)
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/**
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* AlphaCPUClass:
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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 Alpha CPU model.
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*/
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typedef struct AlphaCPUClass {
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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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} AlphaCPUClass;
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/**
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* AlphaCPU:
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* @env: #CPUAlphaState
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*
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* An Alpha CPU.
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*/
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typedef struct AlphaCPU {
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/*< private >*/
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CPUState parent_obj;
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/*< public >*/
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CPUAlphaState env;
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/* This alarm doesn't exist in real hardware; we wish it did. */
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struct QEMUTimer *alarm_timer;
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} AlphaCPU;
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static inline AlphaCPU *alpha_env_get_cpu(CPUAlphaState *env)
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{
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return container_of(env, AlphaCPU, env);
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}
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#define ENV_GET_CPU(e) CPU(alpha_env_get_cpu(e))
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#define ENV_OFFSET offsetof(AlphaCPU, env)
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#ifndef CONFIG_USER_ONLY
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extern const struct VMStateDescription vmstate_alpha_cpu;
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#endif
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void alpha_cpu_do_interrupt(CPUState *cpu);
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void alpha_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
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int flags);
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#endif
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