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, 292 insertions, 0 deletions

diff --git a/target/microblaze/cpu.c b/target/microblaze/cpu.c
new file mode 100644
index 0000000000..389c7b691e
--- /dev/null
+++ b/target/microblaze/cpu.c
@@ -0,0 +1,292 @@
+/*
+ * QEMU MicroBlaze CPU
+ *
+ * Copyright (c) 2009 Edgar E. Iglesias
+ * Copyright (c) 2009-2012 PetaLogix Qld Pty Ltd.
+ * Copyright (c) 2012 SUSE LINUX Products GmbH
+ * Copyright (c) 2009 Edgar E. Iglesias, Axis Communications AB.
+ *
+ * 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 "hw/qdev-properties.h"
+#include "migration/vmstate.h"
+#include "exec/exec-all.h"
+
+static const struct {
+    const char *name;
+    uint8_t version_id;
+} mb_cpu_lookup[] = {
+    /* These key value are as per MBV field in PVR0 */
+    {"5.00.a", 0x01},
+    {"5.00.b", 0x02},
+    {"5.00.c", 0x03},
+    {"6.00.a", 0x04},
+    {"6.00.b", 0x06},
+    {"7.00.a", 0x05},
+    {"7.00.b", 0x07},
+    {"7.10.a", 0x08},
+    {"7.10.b", 0x09},
+    {"7.10.c", 0x0a},
+    {"7.10.d", 0x0b},
+    {"7.20.a", 0x0c},
+    {"7.20.b", 0x0d},
+    {"7.20.c", 0x0e},
+    {"7.20.d", 0x0f},
+    {"7.30.a", 0x10},
+    {"7.30.b", 0x11},
+    {"8.00.a", 0x12},
+    {"8.00.b", 0x13},
+    {"8.10.a", 0x14},
+    {"8.20.a", 0x15},
+    {"8.20.b", 0x16},
+    {"8.30.a", 0x17},
+    {"8.40.a", 0x18},
+    {"8.40.b", 0x19},
+    {"8.50.a", 0x1A},
+    {"9.0", 0x1B},
+    {"9.1", 0x1D},
+    {"9.2", 0x1F},
+    {"9.3", 0x20},
+    {NULL, 0},
+};
+
+static void mb_cpu_set_pc(CPUState *cs, vaddr value)
+{
+    MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
+
+    cpu->env.sregs[SR_PC] = value;
+}
+
+static bool mb_cpu_has_work(CPUState *cs)
+{
+    return cs->interrupt_request & (CPU_INTERRUPT_HARD | CPU_INTERRUPT_NMI);
+}
+
+#ifndef CONFIG_USER_ONLY
+static void microblaze_cpu_set_irq(void *opaque, int irq, int level)
+{
+    MicroBlazeCPU *cpu = opaque;
+    CPUState *cs = CPU(cpu);
+    int type = irq ? CPU_INTERRUPT_NMI : CPU_INTERRUPT_HARD;
+
+    if (level) {
+        cpu_interrupt(cs, type);
+    } else {
+        cpu_reset_interrupt(cs, type);
+    }
+}
+#endif
+
+/* CPUClass::reset() */
+static void mb_cpu_reset(CPUState *s)
+{
+    MicroBlazeCPU *cpu = MICROBLAZE_CPU(s);
+    MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(cpu);
+    CPUMBState *env = &cpu->env;
+
+    mcc->parent_reset(s);
+
+    memset(env, 0, offsetof(CPUMBState, pvr));
+    env->res_addr = RES_ADDR_NONE;
+    tlb_flush(s, 1);
+
+    /* Disable stack protector.  */
+    env->shr = ~0;
+
+    env->sregs[SR_PC] = cpu->cfg.base_vectors;
+
+#if defined(CONFIG_USER_ONLY)
+    /* start in user mode with interrupts enabled.  */
+    env->sregs[SR_MSR] = MSR_EE | MSR_IE | MSR_VM | MSR_UM;
+#else
+    env->sregs[SR_MSR] = 0;
+    mmu_init(&env->mmu);
+    env->mmu.c_mmu = 3;
+    env->mmu.c_mmu_tlb_access = 3;
+    env->mmu.c_mmu_zones = 16;
+#endif
+}
+
+static void mb_disas_set_info(CPUState *cpu, disassemble_info *info)
+{
+    info->mach = bfd_arch_microblaze;
+    info->print_insn = print_insn_microblaze;
+}
+
+static void mb_cpu_realizefn(DeviceState *dev, Error **errp)
+{
+    CPUState *cs = CPU(dev);
+    MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_GET_CLASS(dev);
+    MicroBlazeCPU *cpu = MICROBLAZE_CPU(cs);
+    CPUMBState *env = &cpu->env;
+    uint8_t version_code = 0;
+    int i = 0;
+    Error *local_err = NULL;
+
+    cpu_exec_realizefn(cs, &local_err);
+    if (local_err != NULL) {
+        error_propagate(errp, local_err);
+        return;
+    }
+
+    qemu_init_vcpu(cs);
+
+    env->pvr.regs[0] = PVR0_USE_BARREL_MASK \
+                       | PVR0_USE_DIV_MASK \
+                       | PVR0_USE_HW_MUL_MASK \
+                       | PVR0_USE_EXC_MASK \
+                       | PVR0_USE_ICACHE_MASK \
+                       | PVR0_USE_DCACHE_MASK \
+                       | (0xb << 8);
+    env->pvr.regs[2] = PVR2_D_OPB_MASK \
+                        | PVR2_D_LMB_MASK \
+                        | PVR2_I_OPB_MASK \
+                        | PVR2_I_LMB_MASK \
+                        | PVR2_USE_MSR_INSTR \
+                        | PVR2_USE_PCMP_INSTR \
+                        | PVR2_USE_BARREL_MASK \
+                        | PVR2_USE_DIV_MASK \
+                        | PVR2_USE_HW_MUL_MASK \
+                        | PVR2_USE_MUL64_MASK \
+                        | PVR2_FPU_EXC_MASK \
+                        | 0;
+
+    for (i = 0; mb_cpu_lookup[i].name && cpu->cfg.version; i++) {
+        if (strcmp(mb_cpu_lookup[i].name, cpu->cfg.version) == 0) {
+            version_code = mb_cpu_lookup[i].version_id;
+            break;
+        }
+    }
+
+    if (!version_code) {
+        qemu_log("Invalid MicroBlaze version number: %s\n", cpu->cfg.version);
+    }
+
+    env->pvr.regs[0] |= (cpu->cfg.stackprot ? PVR0_SPROT_MASK : 0) |
+                        (cpu->cfg.use_fpu ? PVR0_USE_FPU_MASK : 0) |
+                        (cpu->cfg.use_mmu ? PVR0_USE_MMU_MASK : 0) |
+                        (cpu->cfg.endi ? PVR0_ENDI_MASK : 0) |
+                        (version_code << 16) |
+                        (cpu->cfg.pvr == C_PVR_FULL ? PVR0_PVR_FULL_MASK : 0);
+
+    env->pvr.regs[2] |= (cpu->cfg.use_fpu ? PVR2_USE_FPU_MASK : 0) |
+                        (cpu->cfg.use_fpu > 1 ? PVR2_USE_FPU2_MASK : 0);
+
+    env->pvr.regs[5] |= cpu->cfg.dcache_writeback ?
+                                        PVR5_DCACHE_WRITEBACK_MASK : 0;
+
+    env->pvr.regs[10] = 0x0c000000; /* Default to spartan 3a dsp family.  */
+    env->pvr.regs[11] = PVR11_USE_MMU | (16 << 17);
+
+    mcc->parent_realize(dev, errp);
+}
+
+static void mb_cpu_initfn(Object *obj)
+{
+    CPUState *cs = CPU(obj);
+    MicroBlazeCPU *cpu = MICROBLAZE_CPU(obj);
+    CPUMBState *env = &cpu->env;
+    static bool tcg_initialized;
+
+    cs->env_ptr = env;
+
+    set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
+
+#ifndef CONFIG_USER_ONLY
+    /* Inbound IRQ and FIR lines */
+    qdev_init_gpio_in(DEVICE(cpu), microblaze_cpu_set_irq, 2);
+#endif
+
+    if (tcg_enabled() && !tcg_initialized) {
+        tcg_initialized = true;
+        mb_tcg_init();
+    }
+}
+
+static const VMStateDescription vmstate_mb_cpu = {
+    .name = "cpu",
+    .unmigratable = 1,
+};
+
+static Property mb_properties[] = {
+    DEFINE_PROP_UINT32("base-vectors", MicroBlazeCPU, cfg.base_vectors, 0),
+    DEFINE_PROP_BOOL("use-stack-protection", MicroBlazeCPU, cfg.stackprot,
+                     false),
+    /* If use-fpu > 0 - FPU is enabled
+     * If use-fpu = 2 - Floating point conversion and square root instructions
+     *                  are enabled
+     */
+    DEFINE_PROP_UINT8("use-fpu", MicroBlazeCPU, cfg.use_fpu, 2),
+    DEFINE_PROP_BOOL("use-mmu", MicroBlazeCPU, cfg.use_mmu, true),
+    DEFINE_PROP_BOOL("dcache-writeback", MicroBlazeCPU, cfg.dcache_writeback,
+                     false),
+    DEFINE_PROP_BOOL("endianness", MicroBlazeCPU, cfg.endi, false),
+    DEFINE_PROP_STRING("version", MicroBlazeCPU, cfg.version),
+    DEFINE_PROP_UINT8("pvr", MicroBlazeCPU, cfg.pvr, C_PVR_FULL),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void mb_cpu_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+    CPUClass *cc = CPU_CLASS(oc);
+    MicroBlazeCPUClass *mcc = MICROBLAZE_CPU_CLASS(oc);
+
+    mcc->parent_realize = dc->realize;
+    dc->realize = mb_cpu_realizefn;
+
+    mcc->parent_reset = cc->reset;
+    cc->reset = mb_cpu_reset;
+
+    cc->has_work = mb_cpu_has_work;
+    cc->do_interrupt = mb_cpu_do_interrupt;
+    cc->cpu_exec_interrupt = mb_cpu_exec_interrupt;
+    cc->dump_state = mb_cpu_dump_state;
+    cc->set_pc = mb_cpu_set_pc;
+    cc->gdb_read_register = mb_cpu_gdb_read_register;
+    cc->gdb_write_register = mb_cpu_gdb_write_register;
+#ifdef CONFIG_USER_ONLY
+    cc->handle_mmu_fault = mb_cpu_handle_mmu_fault;
+#else
+    cc->do_unassigned_access = mb_cpu_unassigned_access;
+    cc->get_phys_page_debug = mb_cpu_get_phys_page_debug;
+#endif
+    dc->vmsd = &vmstate_mb_cpu;
+    dc->props = mb_properties;
+    cc->gdb_num_core_regs = 32 + 5;
+
+    cc->disas_set_info = mb_disas_set_info;
+}
+
+static const TypeInfo mb_cpu_type_info = {
+    .name = TYPE_MICROBLAZE_CPU,
+    .parent = TYPE_CPU,
+    .instance_size = sizeof(MicroBlazeCPU),
+    .instance_init = mb_cpu_initfn,
+    .class_size = sizeof(MicroBlazeCPUClass),
+    .class_init = mb_cpu_class_init,
+};
+
+static void mb_cpu_register_types(void)
+{
+    type_register_static(&mb_cpu_type_info);
+}
+
+type_init(mb_cpu_register_types)