Move target-* CPU file into a target/ folder

We've currently got 18 architectures in QEMU, and thus 18 target-xxx
folders in the root folder of the QEMU source tree. More architectures
(e.g. RISC-V, AVR) are likely to be included soon, too, so the main
folder of the QEMU sources slowly gets quite overcrowded with the
target-xxx folders.
To disburden the main folder a little bit, let's move the target-xxx
folders into a dedicated target/ folder, so that target-xxx/ simply
becomes target/xxx/ instead.

Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part]
Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part]
Acked-by: Michael Walle <michael@walle.cc> [lm32 part]
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part]
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part]
Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part]
Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part]
Acked-by: Richard Henderson <rth@twiddle.net> [alpha part]
Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part]
Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part]
Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part]
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part]
Signed-off-by: Thomas Huth <thuth@redhat.com>

1 files changed, 324 insertions, 0 deletions

diff --git a/target/m68k/cpu.c b/target/m68k/cpu.c
new file mode 100644
index 0000000000..ba17480098
--- /dev/null
+++ b/target/m68k/cpu.c
@@ -0,0 +1,324 @@
+/*
+ * QEMU Motorola 68k CPU
+ *
+ * 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 "qemu/osdep.h"
+#include "qapi/error.h"
+#include "cpu.h"
+#include "qemu-common.h"
+#include "migration/vmstate.h"
+#include "exec/exec-all.h"
+
+
+static void m68k_cpu_set_pc(CPUState *cs, vaddr value)
+{
+    M68kCPU *cpu = M68K_CPU(cs);
+
+    cpu->env.pc = value;
+}
+
+static bool m68k_cpu_has_work(CPUState *cs)
+{
+    return cs->interrupt_request & CPU_INTERRUPT_HARD;
+}
+
+static void m68k_set_feature(CPUM68KState *env, int feature)
+{
+    env->features |= (1u << feature);
+}
+
+/* CPUClass::reset() */
+static void m68k_cpu_reset(CPUState *s)
+{
+    M68kCPU *cpu = M68K_CPU(s);
+    M68kCPUClass *mcc = M68K_CPU_GET_CLASS(cpu);
+    CPUM68KState *env = &cpu->env;
+
+    mcc->parent_reset(s);
+
+    memset(env, 0, offsetof(CPUM68KState, features));
+#if !defined(CONFIG_USER_ONLY)
+    env->sr = 0x2700;
+#endif
+    m68k_switch_sp(env);
+    /* ??? FP regs should be initialized to NaN.  */
+    cpu_m68k_set_ccr(env, 0);
+    /* TODO: We should set PC from the interrupt vector.  */
+    env->pc = 0;
+    tlb_flush(s, 1);
+}
+
+static void m68k_cpu_disas_set_info(CPUState *s, disassemble_info *info)
+{
+    M68kCPU *cpu = M68K_CPU(s);
+    CPUM68KState *env = &cpu->env;
+    info->print_insn = print_insn_m68k;
+    if (m68k_feature(env, M68K_FEATURE_M68000)) {
+        info->mach = bfd_mach_m68040;
+    }
+}
+
+/* CPU models */
+
+static ObjectClass *m68k_cpu_class_by_name(const char *cpu_model)
+{
+    ObjectClass *oc;
+    char *typename;
+
+    if (cpu_model == NULL) {
+        return NULL;
+    }
+
+    typename = g_strdup_printf("%s-" TYPE_M68K_CPU, cpu_model);
+    oc = object_class_by_name(typename);
+    g_free(typename);
+    if (oc != NULL && (object_class_dynamic_cast(oc, TYPE_M68K_CPU) == NULL ||
+                       object_class_is_abstract(oc))) {
+        return NULL;
+    }
+    return oc;
+}
+
+static void m5206_cpu_initfn(Object *obj)
+{
+    M68kCPU *cpu = M68K_CPU(obj);
+    CPUM68KState *env = &cpu->env;
+
+    m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
+}
+
+static void m68000_cpu_initfn(Object *obj)
+{
+    M68kCPU *cpu = M68K_CPU(obj);
+    CPUM68KState *env = &cpu->env;
+
+    m68k_set_feature(env, M68K_FEATURE_M68000);
+    m68k_set_feature(env, M68K_FEATURE_USP);
+    m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
+}
+
+static void m68020_cpu_initfn(Object *obj)
+{
+    M68kCPU *cpu = M68K_CPU(obj);
+    CPUM68KState *env = &cpu->env;
+
+    m68k_set_feature(env, M68K_FEATURE_M68000);
+    m68k_set_feature(env, M68K_FEATURE_USP);
+    m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
+    m68k_set_feature(env, M68K_FEATURE_QUAD_MULDIV);
+    m68k_set_feature(env, M68K_FEATURE_BRAL);
+    m68k_set_feature(env, M68K_FEATURE_BCCL);
+    m68k_set_feature(env, M68K_FEATURE_BITFIELD);
+    m68k_set_feature(env, M68K_FEATURE_EXT_FULL);
+    m68k_set_feature(env, M68K_FEATURE_SCALED_INDEX);
+    m68k_set_feature(env, M68K_FEATURE_LONG_MULDIV);
+    m68k_set_feature(env, M68K_FEATURE_FPU);
+    m68k_set_feature(env, M68K_FEATURE_CAS);
+    m68k_set_feature(env, M68K_FEATURE_BKPT);
+}
+#define m68030_cpu_initfn m68020_cpu_initfn
+#define m68040_cpu_initfn m68020_cpu_initfn
+
+static void m68060_cpu_initfn(Object *obj)
+{
+    M68kCPU *cpu = M68K_CPU(obj);
+    CPUM68KState *env = &cpu->env;
+
+    m68k_set_feature(env, M68K_FEATURE_M68000);
+    m68k_set_feature(env, M68K_FEATURE_USP);
+    m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
+    m68k_set_feature(env, M68K_FEATURE_BRAL);
+    m68k_set_feature(env, M68K_FEATURE_BCCL);
+    m68k_set_feature(env, M68K_FEATURE_BITFIELD);
+    m68k_set_feature(env, M68K_FEATURE_EXT_FULL);
+    m68k_set_feature(env, M68K_FEATURE_SCALED_INDEX);
+    m68k_set_feature(env, M68K_FEATURE_LONG_MULDIV);
+    m68k_set_feature(env, M68K_FEATURE_FPU);
+    m68k_set_feature(env, M68K_FEATURE_CAS);
+    m68k_set_feature(env, M68K_FEATURE_BKPT);
+}
+
+static void m5208_cpu_initfn(Object *obj)
+{
+    M68kCPU *cpu = M68K_CPU(obj);
+    CPUM68KState *env = &cpu->env;
+
+    m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
+    m68k_set_feature(env, M68K_FEATURE_CF_ISA_APLUSC);
+    m68k_set_feature(env, M68K_FEATURE_BRAL);
+    m68k_set_feature(env, M68K_FEATURE_CF_EMAC);
+    m68k_set_feature(env, M68K_FEATURE_USP);
+}
+
+static void cfv4e_cpu_initfn(Object *obj)
+{
+    M68kCPU *cpu = M68K_CPU(obj);
+    CPUM68KState *env = &cpu->env;
+
+    m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
+    m68k_set_feature(env, M68K_FEATURE_CF_ISA_B);
+    m68k_set_feature(env, M68K_FEATURE_BRAL);
+    m68k_set_feature(env, M68K_FEATURE_CF_FPU);
+    m68k_set_feature(env, M68K_FEATURE_CF_EMAC);
+    m68k_set_feature(env, M68K_FEATURE_USP);
+}
+
+static void any_cpu_initfn(Object *obj)
+{
+    M68kCPU *cpu = M68K_CPU(obj);
+    CPUM68KState *env = &cpu->env;
+
+    m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
+    m68k_set_feature(env, M68K_FEATURE_CF_ISA_B);
+    m68k_set_feature(env, M68K_FEATURE_CF_ISA_APLUSC);
+    m68k_set_feature(env, M68K_FEATURE_BRAL);
+    m68k_set_feature(env, M68K_FEATURE_CF_FPU);
+    /* MAC and EMAC are mututally exclusive, so pick EMAC.
+       It's mostly backwards compatible.  */
+    m68k_set_feature(env, M68K_FEATURE_CF_EMAC);
+    m68k_set_feature(env, M68K_FEATURE_CF_EMAC_B);
+    m68k_set_feature(env, M68K_FEATURE_USP);
+    m68k_set_feature(env, M68K_FEATURE_EXT_FULL);
+    m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
+}
+
+typedef struct M68kCPUInfo {
+    const char *name;
+    void (*instance_init)(Object *obj);
+} M68kCPUInfo;
+
+static const M68kCPUInfo m68k_cpus[] = {
+    { .name = "m68000", .instance_init = m68000_cpu_initfn },
+    { .name = "m68020", .instance_init = m68020_cpu_initfn },
+    { .name = "m68030", .instance_init = m68030_cpu_initfn },
+    { .name = "m68040", .instance_init = m68040_cpu_initfn },
+    { .name = "m68060", .instance_init = m68060_cpu_initfn },
+    { .name = "m5206", .instance_init = m5206_cpu_initfn },
+    { .name = "m5208", .instance_init = m5208_cpu_initfn },
+    { .name = "cfv4e", .instance_init = cfv4e_cpu_initfn },
+    { .name = "any",   .instance_init = any_cpu_initfn },
+};
+
+static void m68k_cpu_realizefn(DeviceState *dev, Error **errp)
+{
+    CPUState *cs = CPU(dev);
+    M68kCPU *cpu = M68K_CPU(dev);
+    M68kCPUClass *mcc = M68K_CPU_GET_CLASS(dev);
+    Error *local_err = NULL;
+
+    cpu_exec_realizefn(cs, &local_err);
+    if (local_err != NULL) {
+        error_propagate(errp, local_err);
+        return;
+    }
+
+    m68k_cpu_init_gdb(cpu);
+
+    cpu_reset(cs);
+    qemu_init_vcpu(cs);
+
+    mcc->parent_realize(dev, errp);
+}
+
+static void m68k_cpu_initfn(Object *obj)
+{
+    CPUState *cs = CPU(obj);
+    M68kCPU *cpu = M68K_CPU(obj);
+    CPUM68KState *env = &cpu->env;
+    static bool inited;
+
+    cs->env_ptr = env;
+
+    if (tcg_enabled() && !inited) {
+        inited = true;
+        m68k_tcg_init();
+    }
+}
+
+static const VMStateDescription vmstate_m68k_cpu = {
+    .name = "cpu",
+    .unmigratable = 1,
+};
+
+static void m68k_cpu_class_init(ObjectClass *c, void *data)
+{
+    M68kCPUClass *mcc = M68K_CPU_CLASS(c);
+    CPUClass *cc = CPU_CLASS(c);
+    DeviceClass *dc = DEVICE_CLASS(c);
+
+    mcc->parent_realize = dc->realize;
+    dc->realize = m68k_cpu_realizefn;
+
+    mcc->parent_reset = cc->reset;
+    cc->reset = m68k_cpu_reset;
+
+    cc->class_by_name = m68k_cpu_class_by_name;
+    cc->has_work = m68k_cpu_has_work;
+    cc->do_interrupt = m68k_cpu_do_interrupt;
+    cc->cpu_exec_interrupt = m68k_cpu_exec_interrupt;
+    cc->dump_state = m68k_cpu_dump_state;
+    cc->set_pc = m68k_cpu_set_pc;
+    cc->gdb_read_register = m68k_cpu_gdb_read_register;
+    cc->gdb_write_register = m68k_cpu_gdb_write_register;
+#ifdef CONFIG_USER_ONLY
+    cc->handle_mmu_fault = m68k_cpu_handle_mmu_fault;
+#else
+    cc->get_phys_page_debug = m68k_cpu_get_phys_page_debug;
+#endif
+    cc->disas_set_info = m68k_cpu_disas_set_info;
+
+    cc->gdb_num_core_regs = 18;
+    cc->gdb_core_xml_file = "cf-core.xml";
+
+    dc->vmsd = &vmstate_m68k_cpu;
+}
+
+static void register_cpu_type(const M68kCPUInfo *info)
+{
+    TypeInfo type_info = {
+        .parent = TYPE_M68K_CPU,
+        .instance_init = info->instance_init,
+    };
+
+    type_info.name = g_strdup_printf("%s-" TYPE_M68K_CPU, info->name);
+    type_register(&type_info);
+    g_free((void *)type_info.name);
+}
+
+static const TypeInfo m68k_cpu_type_info = {
+    .name = TYPE_M68K_CPU,
+    .parent = TYPE_CPU,
+    .instance_size = sizeof(M68kCPU),
+    .instance_init = m68k_cpu_initfn,
+    .abstract = true,
+    .class_size = sizeof(M68kCPUClass),
+    .class_init = m68k_cpu_class_init,
+};
+
+static void m68k_cpu_register_types(void)
+{
+    int i;
+
+    type_register_static(&m68k_cpu_type_info);
+    for (i = 0; i < ARRAY_SIZE(m68k_cpus); i++) {
+        register_cpu_type(&m68k_cpus[i]);
+    }
+}
+
+type_init(m68k_cpu_register_types)