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>
68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
/*
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* QEMU UniCore32 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 program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation, or (at your option) any
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* later version. See the COPYING file in the top-level directory.
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*/
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#ifndef QEMU_UC32_CPU_QOM_H
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#define QEMU_UC32_CPU_QOM_H
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#include "qom/cpu.h"
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#include "cpu.h"
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#define TYPE_UNICORE32_CPU "unicore32-cpu"
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#define UNICORE32_CPU_CLASS(klass) \
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OBJECT_CLASS_CHECK(UniCore32CPUClass, (klass), TYPE_UNICORE32_CPU)
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#define UNICORE32_CPU(obj) \
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OBJECT_CHECK(UniCore32CPU, (obj), TYPE_UNICORE32_CPU)
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#define UNICORE32_CPU_GET_CLASS(obj) \
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OBJECT_GET_CLASS(UniCore32CPUClass, (obj), TYPE_UNICORE32_CPU)
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/**
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* UniCore32CPUClass:
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* @parent_realize: The parent class' realize handler.
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*
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* A UniCore32 CPU model.
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*/
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typedef struct UniCore32CPUClass {
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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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} UniCore32CPUClass;
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/**
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* UniCore32CPU:
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* @env: #CPUUniCore32State
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*
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* A UniCore32 CPU.
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*/
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typedef struct UniCore32CPU {
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/*< private >*/
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CPUState parent_obj;
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/*< public >*/
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CPUUniCore32State env;
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} UniCore32CPU;
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static inline UniCore32CPU *uc32_env_get_cpu(CPUUniCore32State *env)
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{
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return container_of(env, UniCore32CPU, env);
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}
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#define ENV_GET_CPU(e) CPU(uc32_env_get_cpu(e))
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#define ENV_OFFSET offsetof(UniCore32CPU, env)
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void uc32_cpu_do_interrupt(CPUState *cpu);
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void uc32_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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