diff options
Diffstat (limited to 'qemu/target-m68k/cpu.c')
| -rw-r--r-- | qemu/target-m68k/cpu.c | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/qemu/target-m68k/cpu.c b/qemu/target-m68k/cpu.c deleted file mode 100644 index 0b5f9a581..000000000 --- a/qemu/target-m68k/cpu.c +++ /dev/null @@ -1,265 +0,0 @@ -/* - * 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" - - -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. */ - env->cc_op = CC_OP_FLAGS; - /* TODO: We should set PC from the interrupt vector. */ - env->pc = 0; - tlb_flush(s, 1); -} - -static void m68k_cpu_disas_set_info(CPUState *cpu, disassemble_info *info) -{ - info->print_insn = print_insn_m68k; -} - -/* 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 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 = "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); - - 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; - cpu_exec_init(cs, &error_abort); - - 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->cpu_exec_enter = m68k_cpu_exec_enter; - cc->cpu_exec_exit = m68k_cpu_exec_exit; - 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; - - /* - * Reason: m68k_cpu_initfn() calls cpu_exec_init(), which saves - * the object in cpus -> dangling pointer after final - * object_unref(). - */ - dc->cannot_destroy_with_object_finalize_yet = true; -} - -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) |