--- /dev/null
+/*
+ * QEMU CRIS CPU
+ *
+ * Copyright (c) 2008 AXIS Communications AB
+ * Written by Edgar E. Iglesias.
+ *
+ * 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 "mmu.h"
+
+
+static void cris_cpu_set_pc(CPUState *cs, vaddr value)
+{
+ CRISCPU *cpu = CRIS_CPU(cs);
+
+ cpu->env.pc = value;
+}
+
+static bool cris_cpu_has_work(CPUState *cs)
+{
+ return cs->interrupt_request & (CPU_INTERRUPT_HARD | CPU_INTERRUPT_NMI);
+}
+
+/* CPUClass::reset() */
+static void cris_cpu_reset(CPUState *s)
+{
+ CRISCPU *cpu = CRIS_CPU(s);
+ CRISCPUClass *ccc = CRIS_CPU_GET_CLASS(cpu);
+ CPUCRISState *env = &cpu->env;
+ uint32_t vr;
+
+ ccc->parent_reset(s);
+
+ vr = env->pregs[PR_VR];
+ memset(env, 0, offsetof(CPUCRISState, load_info));
+ env->pregs[PR_VR] = vr;
+ tlb_flush(s, 1);
+
+#if defined(CONFIG_USER_ONLY)
+ /* start in user mode with interrupts enabled. */
+ env->pregs[PR_CCS] |= U_FLAG | I_FLAG | P_FLAG;
+#else
+ cris_mmu_init(env);
+ env->pregs[PR_CCS] = 0;
+#endif
+}
+
+static ObjectClass *cris_cpu_class_by_name(const char *cpu_model)
+{
+ ObjectClass *oc;
+ char *typename;
+
+ if (cpu_model == NULL) {
+ return NULL;
+ }
+
+#if defined(CONFIG_USER_ONLY)
+ if (strcasecmp(cpu_model, "any") == 0) {
+ return object_class_by_name("crisv32-" TYPE_CRIS_CPU);
+ }
+#endif
+
+ typename = g_strdup_printf("%s-" TYPE_CRIS_CPU, cpu_model);
+ oc = object_class_by_name(typename);
+ g_free(typename);
+ if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_CRIS_CPU) ||
+ object_class_is_abstract(oc))) {
+ oc = NULL;
+ }
+ return oc;
+}
+
+CRISCPU *cpu_cris_init(const char *cpu_model)
+{
+ return CRIS_CPU(cpu_generic_init(TYPE_CRIS_CPU, cpu_model));
+}
+
+/* Sort alphabetically by VR. */
+static gint cris_cpu_list_compare(gconstpointer a, gconstpointer b)
+{
+ CRISCPUClass *ccc_a = CRIS_CPU_CLASS(a);
+ CRISCPUClass *ccc_b = CRIS_CPU_CLASS(b);
+
+ /* */
+ if (ccc_a->vr > ccc_b->vr) {
+ return 1;
+ } else if (ccc_a->vr < ccc_b->vr) {
+ return -1;
+ } else {
+ return 0;
+ }
+}
+
+static void cris_cpu_list_entry(gpointer data, gpointer user_data)
+{
+ ObjectClass *oc = data;
+ CPUListState *s = user_data;
+ const char *typename = object_class_get_name(oc);
+ char *name;
+
+ name = g_strndup(typename, strlen(typename) - strlen("-" TYPE_CRIS_CPU));
+ (*s->cpu_fprintf)(s->file, " %s\n", name);
+ g_free(name);
+}
+
+void cris_cpu_list(FILE *f, fprintf_function cpu_fprintf)
+{
+ CPUListState s = {
+ .file = f,
+ .cpu_fprintf = cpu_fprintf,
+ };
+ GSList *list;
+
+ list = object_class_get_list(TYPE_CRIS_CPU, false);
+ list = g_slist_sort(list, cris_cpu_list_compare);
+ (*cpu_fprintf)(f, "Available CPUs:\n");
+ g_slist_foreach(list, cris_cpu_list_entry, &s);
+ g_slist_free(list);
+}
+
+static void cris_cpu_realizefn(DeviceState *dev, Error **errp)
+{
+ CPUState *cs = CPU(dev);
+ CRISCPUClass *ccc = CRIS_CPU_GET_CLASS(dev);
+
+ cpu_reset(cs);
+ qemu_init_vcpu(cs);
+
+ ccc->parent_realize(dev, errp);
+}
+
+#ifndef CONFIG_USER_ONLY
+static void cris_cpu_set_irq(void *opaque, int irq, int level)
+{
+ CRISCPU *cpu = opaque;
+ CPUState *cs = CPU(cpu);
+ int type = irq == CRIS_CPU_IRQ ? CPU_INTERRUPT_HARD : CPU_INTERRUPT_NMI;
+
+ if (level) {
+ cpu_interrupt(cs, type);
+ } else {
+ cpu_reset_interrupt(cs, type);
+ }
+}
+#endif
+
+static void cris_disas_set_info(CPUState *cpu, disassemble_info *info)
+{
+ CRISCPU *cc = CRIS_CPU(cpu);
+ CPUCRISState *env = &cc->env;
+
+ if (env->pregs[PR_VR] != 32) {
+ info->mach = bfd_mach_cris_v0_v10;
+ info->print_insn = print_insn_crisv10;
+ } else {
+ info->mach = bfd_mach_cris_v32;
+ info->print_insn = print_insn_crisv32;
+ }
+}
+
+static void cris_cpu_initfn(Object *obj)
+{
+ CPUState *cs = CPU(obj);
+ CRISCPU *cpu = CRIS_CPU(obj);
+ CRISCPUClass *ccc = CRIS_CPU_GET_CLASS(obj);
+ CPUCRISState *env = &cpu->env;
+ static bool tcg_initialized;
+
+ cs->env_ptr = env;
+ cpu_exec_init(cs, &error_abort);
+
+ env->pregs[PR_VR] = ccc->vr;
+
+#ifndef CONFIG_USER_ONLY
+ /* IRQ and NMI lines. */
+ qdev_init_gpio_in(DEVICE(cpu), cris_cpu_set_irq, 2);
+#endif
+
+ if (tcg_enabled() && !tcg_initialized) {
+ tcg_initialized = true;
+ if (env->pregs[PR_VR] < 32) {
+ cris_initialize_crisv10_tcg();
+ } else {
+ cris_initialize_tcg();
+ }
+ }
+}
+
+static void crisv8_cpu_class_init(ObjectClass *oc, void *data)
+{
+ CPUClass *cc = CPU_CLASS(oc);
+ CRISCPUClass *ccc = CRIS_CPU_CLASS(oc);
+
+ ccc->vr = 8;
+ cc->do_interrupt = crisv10_cpu_do_interrupt;
+ cc->gdb_read_register = crisv10_cpu_gdb_read_register;
+}
+
+static void crisv9_cpu_class_init(ObjectClass *oc, void *data)
+{
+ CPUClass *cc = CPU_CLASS(oc);
+ CRISCPUClass *ccc = CRIS_CPU_CLASS(oc);
+
+ ccc->vr = 9;
+ cc->do_interrupt = crisv10_cpu_do_interrupt;
+ cc->gdb_read_register = crisv10_cpu_gdb_read_register;
+}
+
+static void crisv10_cpu_class_init(ObjectClass *oc, void *data)
+{
+ CPUClass *cc = CPU_CLASS(oc);
+ CRISCPUClass *ccc = CRIS_CPU_CLASS(oc);
+
+ ccc->vr = 10;
+ cc->do_interrupt = crisv10_cpu_do_interrupt;
+ cc->gdb_read_register = crisv10_cpu_gdb_read_register;
+}
+
+static void crisv11_cpu_class_init(ObjectClass *oc, void *data)
+{
+ CPUClass *cc = CPU_CLASS(oc);
+ CRISCPUClass *ccc = CRIS_CPU_CLASS(oc);
+
+ ccc->vr = 11;
+ cc->do_interrupt = crisv10_cpu_do_interrupt;
+ cc->gdb_read_register = crisv10_cpu_gdb_read_register;
+}
+
+static void crisv32_cpu_class_init(ObjectClass *oc, void *data)
+{
+ CRISCPUClass *ccc = CRIS_CPU_CLASS(oc);
+
+ ccc->vr = 32;
+}
+
+#define TYPE(model) model "-" TYPE_CRIS_CPU
+
+static const TypeInfo cris_cpu_model_type_infos[] = {
+ {
+ .name = TYPE("crisv8"),
+ .parent = TYPE_CRIS_CPU,
+ .class_init = crisv8_cpu_class_init,
+ }, {
+ .name = TYPE("crisv9"),
+ .parent = TYPE_CRIS_CPU,
+ .class_init = crisv9_cpu_class_init,
+ }, {
+ .name = TYPE("crisv10"),
+ .parent = TYPE_CRIS_CPU,
+ .class_init = crisv10_cpu_class_init,
+ }, {
+ .name = TYPE("crisv11"),
+ .parent = TYPE_CRIS_CPU,
+ .class_init = crisv11_cpu_class_init,
+ }, {
+ .name = TYPE("crisv32"),
+ .parent = TYPE_CRIS_CPU,
+ .class_init = crisv32_cpu_class_init,
+ }
+};
+
+#undef TYPE
+
+static void cris_cpu_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+ CPUClass *cc = CPU_CLASS(oc);
+ CRISCPUClass *ccc = CRIS_CPU_CLASS(oc);
+
+ ccc->parent_realize = dc->realize;
+ dc->realize = cris_cpu_realizefn;
+
+ ccc->parent_reset = cc->reset;
+ cc->reset = cris_cpu_reset;
+
+ cc->class_by_name = cris_cpu_class_by_name;
+ cc->has_work = cris_cpu_has_work;
+ cc->do_interrupt = cris_cpu_do_interrupt;
+ cc->cpu_exec_interrupt = cris_cpu_exec_interrupt;
+ cc->dump_state = cris_cpu_dump_state;
+ cc->set_pc = cris_cpu_set_pc;
+ cc->gdb_read_register = cris_cpu_gdb_read_register;
+ cc->gdb_write_register = cris_cpu_gdb_write_register;
+#ifdef CONFIG_USER_ONLY
+ cc->handle_mmu_fault = cris_cpu_handle_mmu_fault;
+#else
+ cc->get_phys_page_debug = cris_cpu_get_phys_page_debug;
+#endif
+
+ cc->gdb_num_core_regs = 49;
+ cc->gdb_stop_before_watchpoint = true;
+
+ cc->disas_set_info = cris_disas_set_info;
+}
+
+static const TypeInfo cris_cpu_type_info = {
+ .name = TYPE_CRIS_CPU,
+ .parent = TYPE_CPU,
+ .instance_size = sizeof(CRISCPU),
+ .instance_init = cris_cpu_initfn,
+ .abstract = true,
+ .class_size = sizeof(CRISCPUClass),
+ .class_init = cris_cpu_class_init,
+};
+
+static void cris_cpu_register_types(void)
+{
+ int i;
+
+ type_register_static(&cris_cpu_type_info);
+ for (i = 0; i < ARRAY_SIZE(cris_cpu_model_type_infos); i++) {
+ type_register_static(&cris_cpu_model_type_infos[i]);
+ }
+}
+
+type_init(cris_cpu_register_types)
Code Review / kvmfornfv.git / blobdiff