qemu/target-alpha/cpu.c
Andreas Färber 494342b35b target-alpha: Add support for -cpu ?
Implement alphabetical listing of CPU subclasses.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Richard Henderson <rth@twiddle.net>
2012-12-19 01:01:37 +01:00

276 lines
6.7 KiB
C

/*
* QEMU Alpha CPU
*
* Copyright (c) 2007 Jocelyn Mayer
* Copyright (c) 2012 SUSE LINUX Products GmbH
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see
* <http://www.gnu.org/licenses/lgpl-2.1.html>
*/
#include "cpu.h"
#include "qemu-common.h"
#include "error.h"
static void alpha_cpu_realize(Object *obj, Error **errp)
{
#ifndef CONFIG_USER_ONLY
AlphaCPU *cpu = ALPHA_CPU(obj);
qemu_init_vcpu(&cpu->env);
#endif
}
typedef struct AlphaCPUListState {
fprintf_function cpu_fprintf;
FILE *file;
} AlphaCPUListState;
/* Sort alphabetically by type name. */
static gint alpha_cpu_list_compare(gconstpointer a, gconstpointer b)
{
ObjectClass *class_a = (ObjectClass *)a;
ObjectClass *class_b = (ObjectClass *)b;
const char *name_a, *name_b;
name_a = object_class_get_name(class_a);
name_b = object_class_get_name(class_b);
return strcmp(name_a, name_b);
}
static void alpha_cpu_list_entry(gpointer data, gpointer user_data)
{
ObjectClass *oc = data;
AlphaCPUListState *s = user_data;
(*s->cpu_fprintf)(s->file, " %s\n",
object_class_get_name(oc));
}
void alpha_cpu_list(FILE *f, fprintf_function cpu_fprintf)
{
AlphaCPUListState s = {
.file = f,
.cpu_fprintf = cpu_fprintf,
};
GSList *list;
list = object_class_get_list(TYPE_ALPHA_CPU, false);
list = g_slist_sort(list, alpha_cpu_list_compare);
(*cpu_fprintf)(f, "Available CPUs:\n");
g_slist_foreach(list, alpha_cpu_list_entry, &s);
g_slist_free(list);
}
/* Models */
#define TYPE(model) model "-" TYPE_ALPHA_CPU
typedef struct AlphaCPUAlias {
const char *alias;
const char *typename;
} AlphaCPUAlias;
static const AlphaCPUAlias alpha_cpu_aliases[] = {
{ "21064", TYPE("ev4") },
{ "21164", TYPE("ev5") },
{ "21164a", TYPE("ev56") },
{ "21164pc", TYPE("pca56") },
{ "21264", TYPE("ev6") },
{ "21264a", TYPE("ev67") },
};
static ObjectClass *alpha_cpu_class_by_name(const char *cpu_model)
{
ObjectClass *oc = NULL;
char *typename;
int i;
if (cpu_model == NULL) {
return NULL;
}
oc = object_class_by_name(cpu_model);
if (oc != NULL) {
return oc;
}
for (i = 0; i < ARRAY_SIZE(alpha_cpu_aliases); i++) {
if (strcmp(cpu_model, alpha_cpu_aliases[i].alias) == 0) {
oc = object_class_by_name(alpha_cpu_aliases[i].typename);
assert(oc != NULL);
return oc;
}
}
typename = g_strdup_printf("%s-" TYPE_ALPHA_CPU, cpu_model);
oc = object_class_by_name(typename);
g_free(typename);
return oc;
}
AlphaCPU *cpu_alpha_init(const char *cpu_model)
{
AlphaCPU *cpu;
CPUAlphaState *env;
ObjectClass *cpu_class;
cpu_class = alpha_cpu_class_by_name(cpu_model);
if (cpu_class == NULL) {
/* Default to ev67; no reason not to emulate insns by default. */
cpu_class = object_class_by_name(TYPE("ev67"));
}
cpu = ALPHA_CPU(object_new(object_class_get_name(cpu_class)));
env = &cpu->env;
env->cpu_model_str = cpu_model;
alpha_cpu_realize(OBJECT(cpu), NULL);
return cpu;
}
static void ev4_cpu_initfn(Object *obj)
{
AlphaCPU *cpu = ALPHA_CPU(obj);
CPUAlphaState *env = &cpu->env;
env->implver = IMPLVER_2106x;
}
static const TypeInfo ev4_cpu_type_info = {
.name = TYPE("ev4"),
.parent = TYPE_ALPHA_CPU,
.instance_init = ev4_cpu_initfn,
};
static void ev5_cpu_initfn(Object *obj)
{
AlphaCPU *cpu = ALPHA_CPU(obj);
CPUAlphaState *env = &cpu->env;
env->implver = IMPLVER_21164;
}
static const TypeInfo ev5_cpu_type_info = {
.name = TYPE("ev5"),
.parent = TYPE_ALPHA_CPU,
.instance_init = ev5_cpu_initfn,
};
static void ev56_cpu_initfn(Object *obj)
{
AlphaCPU *cpu = ALPHA_CPU(obj);
CPUAlphaState *env = &cpu->env;
env->amask |= AMASK_BWX;
}
static const TypeInfo ev56_cpu_type_info = {
.name = TYPE("ev56"),
.parent = TYPE("ev5"),
.instance_init = ev56_cpu_initfn,
};
static void pca56_cpu_initfn(Object *obj)
{
AlphaCPU *cpu = ALPHA_CPU(obj);
CPUAlphaState *env = &cpu->env;
env->amask |= AMASK_MVI;
}
static const TypeInfo pca56_cpu_type_info = {
.name = TYPE("pca56"),
.parent = TYPE("ev56"),
.instance_init = pca56_cpu_initfn,
};
static void ev6_cpu_initfn(Object *obj)
{
AlphaCPU *cpu = ALPHA_CPU(obj);
CPUAlphaState *env = &cpu->env;
env->implver = IMPLVER_21264;
env->amask = AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP;
}
static const TypeInfo ev6_cpu_type_info = {
.name = TYPE("ev6"),
.parent = TYPE_ALPHA_CPU,
.instance_init = ev6_cpu_initfn,
};
static void ev67_cpu_initfn(Object *obj)
{
AlphaCPU *cpu = ALPHA_CPU(obj);
CPUAlphaState *env = &cpu->env;
env->amask |= AMASK_CIX | AMASK_PREFETCH;
}
static const TypeInfo ev67_cpu_type_info = {
.name = TYPE("ev67"),
.parent = TYPE("ev6"),
.instance_init = ev67_cpu_initfn,
};
static const TypeInfo ev68_cpu_type_info = {
.name = TYPE("ev68"),
.parent = TYPE("ev67"),
};
static void alpha_cpu_initfn(Object *obj)
{
AlphaCPU *cpu = ALPHA_CPU(obj);
CPUAlphaState *env = &cpu->env;
cpu_exec_init(env);
tlb_flush(env, 1);
alpha_translate_init();
#if defined(CONFIG_USER_ONLY)
env->ps = PS_USER_MODE;
cpu_alpha_store_fpcr(env, (FPCR_INVD | FPCR_DZED | FPCR_OVFD
| FPCR_UNFD | FPCR_INED | FPCR_DNOD
| FPCR_DYN_NORMAL));
#endif
env->lock_addr = -1;
env->fen = 1;
}
static const TypeInfo alpha_cpu_type_info = {
.name = TYPE_ALPHA_CPU,
.parent = TYPE_CPU,
.instance_size = sizeof(AlphaCPU),
.instance_init = alpha_cpu_initfn,
.abstract = true,
.class_size = sizeof(AlphaCPUClass),
};
static void alpha_cpu_register_types(void)
{
type_register_static(&alpha_cpu_type_info);
type_register_static(&ev4_cpu_type_info);
type_register_static(&ev5_cpu_type_info);
type_register_static(&ev56_cpu_type_info);
type_register_static(&pca56_cpu_type_info);
type_register_static(&ev6_cpu_type_info);
type_register_static(&ev67_cpu_type_info);
type_register_static(&ev68_cpu_type_info);
}
type_init(alpha_cpu_register_types)