--- /dev/null
+/*
+ * QEMU SuperH CPU
+ *
+ * Copyright (c) 2005 Samuel Tardieu
+ * 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 "migration/vmstate.h"
+
+
+static void superh_cpu_set_pc(CPUState *cs, vaddr value)
+{
+ SuperHCPU *cpu = SUPERH_CPU(cs);
+
+ cpu->env.pc = value;
+}
+
+static void superh_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb)
+{
+ SuperHCPU *cpu = SUPERH_CPU(cs);
+
+ cpu->env.pc = tb->pc;
+ cpu->env.flags = tb->flags;
+}
+
+static bool superh_cpu_has_work(CPUState *cs)
+{
+ return cs->interrupt_request & CPU_INTERRUPT_HARD;
+}
+
+/* CPUClass::reset() */
+static void superh_cpu_reset(CPUState *s)
+{
+ SuperHCPU *cpu = SUPERH_CPU(s);
+ SuperHCPUClass *scc = SUPERH_CPU_GET_CLASS(cpu);
+ CPUSH4State *env = &cpu->env;
+
+ scc->parent_reset(s);
+
+ memset(env, 0, offsetof(CPUSH4State, id));
+ tlb_flush(s, 1);
+
+ env->pc = 0xA0000000;
+#if defined(CONFIG_USER_ONLY)
+ env->fpscr = FPSCR_PR; /* value for userspace according to the kernel */
+ set_float_rounding_mode(float_round_nearest_even, &env->fp_status); /* ?! */
+#else
+ env->sr = (1u << SR_MD) | (1u << SR_RB) | (1u << SR_BL) |
+ (1u << SR_I3) | (1u << SR_I2) | (1u << SR_I1) | (1u << SR_I0);
+ env->fpscr = FPSCR_DN | FPSCR_RM_ZERO; /* CPU reset value according to SH4 manual */
+ set_float_rounding_mode(float_round_to_zero, &env->fp_status);
+ set_flush_to_zero(1, &env->fp_status);
+#endif
+ set_default_nan_mode(1, &env->fp_status);
+}
+
+typedef struct SuperHCPUListState {
+ fprintf_function cpu_fprintf;
+ FILE *file;
+} SuperHCPUListState;
+
+/* Sort alphabetically by type name. */
+static gint superh_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 superh_cpu_list_entry(gpointer data, gpointer user_data)
+{
+ ObjectClass *oc = data;
+ SuperHCPUClass *scc = SUPERH_CPU_CLASS(oc);
+ SuperHCPUListState *s = user_data;
+
+ (*s->cpu_fprintf)(s->file, "%s\n",
+ scc->name);
+}
+
+void sh4_cpu_list(FILE *f, fprintf_function cpu_fprintf)
+{
+ SuperHCPUListState s = {
+ .cpu_fprintf = cpu_fprintf,
+ .file = f,
+ };
+ GSList *list;
+
+ list = object_class_get_list(TYPE_SUPERH_CPU, false);
+ list = g_slist_sort(list, superh_cpu_list_compare);
+ g_slist_foreach(list, superh_cpu_list_entry, &s);
+ g_slist_free(list);
+}
+
+static gint superh_cpu_name_compare(gconstpointer a, gconstpointer b)
+{
+ const SuperHCPUClass *scc = SUPERH_CPU_CLASS(a);
+ const char *name = b;
+
+ return strcasecmp(scc->name, name);
+}
+
+static ObjectClass *superh_cpu_class_by_name(const char *cpu_model)
+{
+ ObjectClass *oc;
+ GSList *list, *item;
+
+ if (cpu_model == NULL) {
+ return NULL;
+ }
+ if (strcasecmp(cpu_model, "any") == 0) {
+ return object_class_by_name(TYPE_SH7750R_CPU);
+ }
+
+ oc = object_class_by_name(cpu_model);
+ if (oc != NULL && object_class_dynamic_cast(oc, TYPE_SUPERH_CPU) != NULL
+ && !object_class_is_abstract(oc)) {
+ return oc;
+ }
+
+ oc = NULL;
+ list = object_class_get_list(TYPE_SUPERH_CPU, false);
+ item = g_slist_find_custom(list, cpu_model, superh_cpu_name_compare);
+ if (item != NULL) {
+ oc = item->data;
+ }
+ g_slist_free(list);
+ return oc;
+}
+
+SuperHCPU *cpu_sh4_init(const char *cpu_model)
+{
+ return SUPERH_CPU(cpu_generic_init(TYPE_SUPERH_CPU, cpu_model));
+}
+
+static void sh7750r_cpu_initfn(Object *obj)
+{
+ SuperHCPU *cpu = SUPERH_CPU(obj);
+ CPUSH4State *env = &cpu->env;
+
+ env->id = SH_CPU_SH7750R;
+ env->features = SH_FEATURE_BCR3_AND_BCR4;
+}
+
+static void sh7750r_class_init(ObjectClass *oc, void *data)
+{
+ SuperHCPUClass *scc = SUPERH_CPU_CLASS(oc);
+
+ scc->name = "SH7750R";
+ scc->pvr = 0x00050000;
+ scc->prr = 0x00000100;
+ scc->cvr = 0x00110000;
+}
+
+static const TypeInfo sh7750r_type_info = {
+ .name = TYPE_SH7750R_CPU,
+ .parent = TYPE_SUPERH_CPU,
+ .class_init = sh7750r_class_init,
+ .instance_init = sh7750r_cpu_initfn,
+};
+
+static void sh7751r_cpu_initfn(Object *obj)
+{
+ SuperHCPU *cpu = SUPERH_CPU(obj);
+ CPUSH4State *env = &cpu->env;
+
+ env->id = SH_CPU_SH7751R;
+ env->features = SH_FEATURE_BCR3_AND_BCR4;
+}
+
+static void sh7751r_class_init(ObjectClass *oc, void *data)
+{
+ SuperHCPUClass *scc = SUPERH_CPU_CLASS(oc);
+
+ scc->name = "SH7751R";
+ scc->pvr = 0x04050005;
+ scc->prr = 0x00000113;
+ scc->cvr = 0x00110000; /* Neutered caches, should be 0x20480000 */
+}
+
+static const TypeInfo sh7751r_type_info = {
+ .name = TYPE_SH7751R_CPU,
+ .parent = TYPE_SUPERH_CPU,
+ .class_init = sh7751r_class_init,
+ .instance_init = sh7751r_cpu_initfn,
+};
+
+static void sh7785_cpu_initfn(Object *obj)
+{
+ SuperHCPU *cpu = SUPERH_CPU(obj);
+ CPUSH4State *env = &cpu->env;
+
+ env->id = SH_CPU_SH7785;
+ env->features = SH_FEATURE_SH4A;
+}
+
+static void sh7785_class_init(ObjectClass *oc, void *data)
+{
+ SuperHCPUClass *scc = SUPERH_CPU_CLASS(oc);
+
+ scc->name = "SH7785";
+ scc->pvr = 0x10300700;
+ scc->prr = 0x00000200;
+ scc->cvr = 0x71440211;
+}
+
+static const TypeInfo sh7785_type_info = {
+ .name = TYPE_SH7785_CPU,
+ .parent = TYPE_SUPERH_CPU,
+ .class_init = sh7785_class_init,
+ .instance_init = sh7785_cpu_initfn,
+};
+
+static void superh_cpu_realizefn(DeviceState *dev, Error **errp)
+{
+ CPUState *cs = CPU(dev);
+ SuperHCPUClass *scc = SUPERH_CPU_GET_CLASS(dev);
+
+ cpu_reset(cs);
+ qemu_init_vcpu(cs);
+
+ scc->parent_realize(dev, errp);
+}
+
+static void superh_cpu_initfn(Object *obj)
+{
+ CPUState *cs = CPU(obj);
+ SuperHCPU *cpu = SUPERH_CPU(obj);
+ CPUSH4State *env = &cpu->env;
+
+ cs->env_ptr = env;
+ cpu_exec_init(cs, &error_abort);
+
+ env->movcal_backup_tail = &(env->movcal_backup);
+
+ if (tcg_enabled()) {
+ sh4_translate_init();
+ }
+}
+
+static const VMStateDescription vmstate_sh_cpu = {
+ .name = "cpu",
+ .unmigratable = 1,
+};
+
+static void superh_cpu_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+ CPUClass *cc = CPU_CLASS(oc);
+ SuperHCPUClass *scc = SUPERH_CPU_CLASS(oc);
+
+ scc->parent_realize = dc->realize;
+ dc->realize = superh_cpu_realizefn;
+
+ scc->parent_reset = cc->reset;
+ cc->reset = superh_cpu_reset;
+
+ cc->class_by_name = superh_cpu_class_by_name;
+ cc->has_work = superh_cpu_has_work;
+ cc->do_interrupt = superh_cpu_do_interrupt;
+ cc->cpu_exec_interrupt = superh_cpu_exec_interrupt;
+ cc->dump_state = superh_cpu_dump_state;
+ cc->set_pc = superh_cpu_set_pc;
+ cc->synchronize_from_tb = superh_cpu_synchronize_from_tb;
+ cc->gdb_read_register = superh_cpu_gdb_read_register;
+ cc->gdb_write_register = superh_cpu_gdb_write_register;
+#ifdef CONFIG_USER_ONLY
+ cc->handle_mmu_fault = superh_cpu_handle_mmu_fault;
+#else
+ cc->get_phys_page_debug = superh_cpu_get_phys_page_debug;
+#endif
+ dc->vmsd = &vmstate_sh_cpu;
+ cc->gdb_num_core_regs = 59;
+}
+
+static const TypeInfo superh_cpu_type_info = {
+ .name = TYPE_SUPERH_CPU,
+ .parent = TYPE_CPU,
+ .instance_size = sizeof(SuperHCPU),
+ .instance_init = superh_cpu_initfn,
+ .abstract = true,
+ .class_size = sizeof(SuperHCPUClass),
+ .class_init = superh_cpu_class_init,
+};
+
+static void superh_cpu_register_types(void)
+{
+ type_register_static(&superh_cpu_type_info);
+ type_register_static(&sh7750r_type_info);
+ type_register_static(&sh7751r_type_info);
+ type_register_static(&sh7785_type_info);
+}
+
+type_init(superh_cpu_register_types)
Code Review / kvmfornfv.git / blobdiff