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>
78 lines
2 KiB
C
78 lines
2 KiB
C
/*
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* QEMU Motorola 68k 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_M68K_CPU_QOM_H
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#define QEMU_M68K_CPU_QOM_H
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#include "qom/cpu.h"
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#define TYPE_M68K_CPU "m68k-cpu"
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#define M68K_CPU_CLASS(klass) \
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OBJECT_CLASS_CHECK(M68kCPUClass, (klass), TYPE_M68K_CPU)
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#define M68K_CPU(obj) \
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OBJECT_CHECK(M68kCPU, (obj), TYPE_M68K_CPU)
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#define M68K_CPU_GET_CLASS(obj) \
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OBJECT_GET_CLASS(M68kCPUClass, (obj), TYPE_M68K_CPU)
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/**
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* M68kCPUClass:
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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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* A Motorola 68k CPU model.
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*/
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typedef struct M68kCPUClass {
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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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} M68kCPUClass;
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/**
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* M68kCPU:
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* @env: #CPUM68KState
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*
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* A Motorola 68k CPU.
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*/
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typedef struct M68kCPU {
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/*< private >*/
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CPUState parent_obj;
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/*< public >*/
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CPUM68KState env;
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} M68kCPU;
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static inline M68kCPU *m68k_env_get_cpu(CPUM68KState *env)
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{
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return container_of(env, M68kCPU, env);
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}
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#define ENV_GET_CPU(e) CPU(m68k_env_get_cpu(e))
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#define ENV_OFFSET offsetof(M68kCPU, env)
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void m68k_cpu_do_interrupt(CPUState *cpu);
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void m68k_cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf,
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int flags);
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#endif
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