2012-04-06 21:46:48 +04:00
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/*
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* QEMU Alpha CPU
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*
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2012-04-07 03:19:45 +04:00
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* Copyright (c) 2007 Jocelyn Mayer
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2012-04-06 21:46:48 +04:00
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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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2012-05-03 08:43:49 +04:00
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#include "cpu.h"
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2012-04-06 21:46:48 +04:00
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#include "qemu-common.h"
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2013-01-05 17:01:30 +04:00
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static void alpha_cpu_realizefn(DeviceState *dev, Error **errp)
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2012-10-15 19:33:32 +04:00
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{
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2013-01-05 17:01:30 +04:00
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AlphaCPU *cpu = ALPHA_CPU(dev);
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AlphaCPUClass *acc = ALPHA_CPU_GET_CLASS(dev);
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2012-10-15 19:33:32 +04:00
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qemu_init_vcpu(&cpu->env);
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2013-01-05 17:01:30 +04:00
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acc->parent_realize(dev, errp);
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2012-10-15 19:33:32 +04:00
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}
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2012-10-15 19:44:21 +04:00
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/* Sort alphabetically by type name. */
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static gint alpha_cpu_list_compare(gconstpointer a, gconstpointer b)
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{
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ObjectClass *class_a = (ObjectClass *)a;
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ObjectClass *class_b = (ObjectClass *)b;
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const char *name_a, *name_b;
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name_a = object_class_get_name(class_a);
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name_b = object_class_get_name(class_b);
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return strcmp(name_a, name_b);
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}
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static void alpha_cpu_list_entry(gpointer data, gpointer user_data)
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{
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ObjectClass *oc = data;
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2012-12-16 05:17:02 +04:00
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CPUListState *s = user_data;
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2012-10-15 19:44:21 +04:00
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(*s->cpu_fprintf)(s->file, " %s\n",
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object_class_get_name(oc));
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}
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void alpha_cpu_list(FILE *f, fprintf_function cpu_fprintf)
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{
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2012-12-16 05:17:02 +04:00
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CPUListState s = {
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2012-10-15 19:44:21 +04:00
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.file = f,
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.cpu_fprintf = cpu_fprintf,
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};
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GSList *list;
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list = object_class_get_list(TYPE_ALPHA_CPU, false);
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list = g_slist_sort(list, alpha_cpu_list_compare);
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(*cpu_fprintf)(f, "Available CPUs:\n");
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g_slist_foreach(list, alpha_cpu_list_entry, &s);
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g_slist_free(list);
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}
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2012-10-15 19:33:32 +04:00
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/* Models */
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#define TYPE(model) model "-" TYPE_ALPHA_CPU
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typedef struct AlphaCPUAlias {
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const char *alias;
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const char *typename;
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} AlphaCPUAlias;
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static const AlphaCPUAlias alpha_cpu_aliases[] = {
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{ "21064", TYPE("ev4") },
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{ "21164", TYPE("ev5") },
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{ "21164a", TYPE("ev56") },
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{ "21164pc", TYPE("pca56") },
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{ "21264", TYPE("ev6") },
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{ "21264a", TYPE("ev67") },
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};
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static ObjectClass *alpha_cpu_class_by_name(const char *cpu_model)
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{
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ObjectClass *oc = NULL;
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char *typename;
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int i;
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if (cpu_model == NULL) {
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return NULL;
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}
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oc = object_class_by_name(cpu_model);
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2013-01-23 15:28:22 +04:00
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if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL &&
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!object_class_is_abstract(oc)) {
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2012-10-15 19:33:32 +04:00
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return oc;
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}
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for (i = 0; i < ARRAY_SIZE(alpha_cpu_aliases); i++) {
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if (strcmp(cpu_model, alpha_cpu_aliases[i].alias) == 0) {
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oc = object_class_by_name(alpha_cpu_aliases[i].typename);
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2013-01-23 15:28:22 +04:00
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assert(oc != NULL && !object_class_is_abstract(oc));
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2012-10-15 19:33:32 +04:00
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return oc;
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}
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}
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typename = g_strdup_printf("%s-" TYPE_ALPHA_CPU, cpu_model);
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oc = object_class_by_name(typename);
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g_free(typename);
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2013-01-23 15:28:22 +04:00
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if (oc != NULL && object_class_is_abstract(oc)) {
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oc = NULL;
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}
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2012-10-15 19:33:32 +04:00
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return oc;
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}
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AlphaCPU *cpu_alpha_init(const char *cpu_model)
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{
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AlphaCPU *cpu;
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CPUAlphaState *env;
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ObjectClass *cpu_class;
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cpu_class = alpha_cpu_class_by_name(cpu_model);
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if (cpu_class == NULL) {
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/* Default to ev67; no reason not to emulate insns by default. */
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cpu_class = object_class_by_name(TYPE("ev67"));
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}
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cpu = ALPHA_CPU(object_new(object_class_get_name(cpu_class)));
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env = &cpu->env;
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env->cpu_model_str = cpu_model;
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2013-01-05 17:01:30 +04:00
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object_property_set_bool(OBJECT(cpu), true, "realized", NULL);
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2012-10-15 19:33:32 +04:00
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return cpu;
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}
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static void ev4_cpu_initfn(Object *obj)
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{
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AlphaCPU *cpu = ALPHA_CPU(obj);
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CPUAlphaState *env = &cpu->env;
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env->implver = IMPLVER_2106x;
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}
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static const TypeInfo ev4_cpu_type_info = {
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.name = TYPE("ev4"),
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.parent = TYPE_ALPHA_CPU,
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.instance_init = ev4_cpu_initfn,
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};
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static void ev5_cpu_initfn(Object *obj)
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{
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AlphaCPU *cpu = ALPHA_CPU(obj);
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CPUAlphaState *env = &cpu->env;
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env->implver = IMPLVER_21164;
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}
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static const TypeInfo ev5_cpu_type_info = {
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.name = TYPE("ev5"),
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.parent = TYPE_ALPHA_CPU,
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.instance_init = ev5_cpu_initfn,
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};
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static void ev56_cpu_initfn(Object *obj)
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{
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AlphaCPU *cpu = ALPHA_CPU(obj);
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CPUAlphaState *env = &cpu->env;
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env->amask |= AMASK_BWX;
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}
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static const TypeInfo ev56_cpu_type_info = {
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.name = TYPE("ev56"),
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.parent = TYPE("ev5"),
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.instance_init = ev56_cpu_initfn,
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};
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static void pca56_cpu_initfn(Object *obj)
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{
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AlphaCPU *cpu = ALPHA_CPU(obj);
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CPUAlphaState *env = &cpu->env;
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env->amask |= AMASK_MVI;
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}
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static const TypeInfo pca56_cpu_type_info = {
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.name = TYPE("pca56"),
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.parent = TYPE("ev56"),
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.instance_init = pca56_cpu_initfn,
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};
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static void ev6_cpu_initfn(Object *obj)
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{
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AlphaCPU *cpu = ALPHA_CPU(obj);
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CPUAlphaState *env = &cpu->env;
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env->implver = IMPLVER_21264;
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env->amask = AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP;
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}
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static const TypeInfo ev6_cpu_type_info = {
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.name = TYPE("ev6"),
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.parent = TYPE_ALPHA_CPU,
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.instance_init = ev6_cpu_initfn,
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};
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static void ev67_cpu_initfn(Object *obj)
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{
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AlphaCPU *cpu = ALPHA_CPU(obj);
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CPUAlphaState *env = &cpu->env;
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env->amask |= AMASK_CIX | AMASK_PREFETCH;
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}
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static const TypeInfo ev67_cpu_type_info = {
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.name = TYPE("ev67"),
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.parent = TYPE("ev6"),
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.instance_init = ev67_cpu_initfn,
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};
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static const TypeInfo ev68_cpu_type_info = {
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.name = TYPE("ev68"),
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.parent = TYPE("ev67"),
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};
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2012-04-07 03:19:45 +04:00
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static void alpha_cpu_initfn(Object *obj)
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{
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2013-01-17 15:13:41 +04:00
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CPUState *cs = CPU(obj);
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2012-04-07 03:19:45 +04:00
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AlphaCPU *cpu = ALPHA_CPU(obj);
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CPUAlphaState *env = &cpu->env;
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2013-01-17 15:13:41 +04:00
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cs->env_ptr = env;
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2012-04-07 03:19:45 +04:00
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cpu_exec_init(env);
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tlb_flush(env, 1);
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2012-10-15 19:33:32 +04:00
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alpha_translate_init();
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2012-04-07 03:19:45 +04:00
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#if defined(CONFIG_USER_ONLY)
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env->ps = PS_USER_MODE;
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cpu_alpha_store_fpcr(env, (FPCR_INVD | FPCR_DZED | FPCR_OVFD
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| FPCR_UNFD | FPCR_INED | FPCR_DNOD
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| FPCR_DYN_NORMAL));
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#endif
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env->lock_addr = -1;
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env->fen = 1;
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}
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2013-01-21 21:26:21 +04:00
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static void alpha_cpu_class_init(ObjectClass *oc, void *data)
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{
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2013-01-05 17:01:30 +04:00
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DeviceClass *dc = DEVICE_CLASS(oc);
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2013-01-21 21:26:21 +04:00
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CPUClass *cc = CPU_CLASS(oc);
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2013-01-05 17:01:30 +04:00
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AlphaCPUClass *acc = ALPHA_CPU_CLASS(oc);
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acc->parent_realize = dc->realize;
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dc->realize = alpha_cpu_realizefn;
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2013-01-21 21:26:21 +04:00
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cc->class_by_name = alpha_cpu_class_by_name;
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}
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2012-04-06 21:46:48 +04:00
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static const TypeInfo alpha_cpu_type_info = {
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.name = TYPE_ALPHA_CPU,
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.parent = TYPE_CPU,
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.instance_size = sizeof(AlphaCPU),
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2012-04-07 03:19:45 +04:00
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.instance_init = alpha_cpu_initfn,
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2012-10-15 19:33:32 +04:00
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.abstract = true,
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2012-04-06 21:46:48 +04:00
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.class_size = sizeof(AlphaCPUClass),
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2013-01-21 21:26:21 +04:00
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.class_init = alpha_cpu_class_init,
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2012-04-06 21:46:48 +04:00
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};
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static void alpha_cpu_register_types(void)
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{
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type_register_static(&alpha_cpu_type_info);
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2012-10-15 19:33:32 +04:00
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type_register_static(&ev4_cpu_type_info);
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type_register_static(&ev5_cpu_type_info);
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type_register_static(&ev56_cpu_type_info);
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type_register_static(&pca56_cpu_type_info);
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type_register_static(&ev6_cpu_type_info);
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type_register_static(&ev67_cpu_type_info);
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type_register_static(&ev68_cpu_type_info);
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2012-04-06 21:46:48 +04:00
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}
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type_init(alpha_cpu_register_types)
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