diff options
Diffstat (limited to 'qemu/target-openrisc/cpu.c')
| -rw-r--r-- | qemu/target-openrisc/cpu.c | 278 |
1 files changed, 0 insertions, 278 deletions
diff --git a/qemu/target-openrisc/cpu.c b/qemu/target-openrisc/cpu.c deleted file mode 100644 index ae6ed9e92..000000000 --- a/qemu/target-openrisc/cpu.c +++ /dev/null @@ -1,278 +0,0 @@ -/* - * QEMU OpenRISC CPU - * - * Copyright (c) 2012 Jia Liu <proljc@gmail.com> - * - * 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 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/>. - */ - -#include "qemu/osdep.h" -#include "qapi/error.h" -#include "cpu.h" -#include "qemu-common.h" - -static void openrisc_cpu_set_pc(CPUState *cs, vaddr value) -{ - OpenRISCCPU *cpu = OPENRISC_CPU(cs); - - cpu->env.pc = value; -} - -static bool openrisc_cpu_has_work(CPUState *cs) -{ - return cs->interrupt_request & (CPU_INTERRUPT_HARD | - CPU_INTERRUPT_TIMER); -} - -/* CPUClass::reset() */ -static void openrisc_cpu_reset(CPUState *s) -{ - OpenRISCCPU *cpu = OPENRISC_CPU(s); - OpenRISCCPUClass *occ = OPENRISC_CPU_GET_CLASS(cpu); - - occ->parent_reset(s); - -#ifndef CONFIG_USER_ONLY - memset(&cpu->env, 0, offsetof(CPUOpenRISCState, tlb)); -#else - memset(&cpu->env, 0, offsetof(CPUOpenRISCState, irq)); -#endif - - tlb_flush(s, 1); - /*tb_flush(&cpu->env); FIXME: Do we need it? */ - - cpu->env.pc = 0x100; - cpu->env.sr = SR_FO | SR_SM; - s->exception_index = -1; - - cpu->env.upr = UPR_UP | UPR_DMP | UPR_IMP | UPR_PICP | UPR_TTP; - cpu->env.cpucfgr = CPUCFGR_OB32S | CPUCFGR_OF32S; - cpu->env.dmmucfgr = (DMMUCFGR_NTW & (0 << 2)) | (DMMUCFGR_NTS & (6 << 2)); - cpu->env.immucfgr = (IMMUCFGR_NTW & (0 << 2)) | (IMMUCFGR_NTS & (6 << 2)); - -#ifndef CONFIG_USER_ONLY - cpu->env.picmr = 0x00000000; - cpu->env.picsr = 0x00000000; - - cpu->env.ttmr = 0x00000000; - cpu->env.ttcr = 0x00000000; -#endif -} - -static inline void set_feature(OpenRISCCPU *cpu, int feature) -{ - cpu->feature |= feature; - cpu->env.cpucfgr = cpu->feature; -} - -static void openrisc_cpu_realizefn(DeviceState *dev, Error **errp) -{ - CPUState *cs = CPU(dev); - OpenRISCCPUClass *occ = OPENRISC_CPU_GET_CLASS(dev); - - qemu_init_vcpu(cs); - cpu_reset(cs); - - occ->parent_realize(dev, errp); -} - -static void openrisc_cpu_initfn(Object *obj) -{ - CPUState *cs = CPU(obj); - OpenRISCCPU *cpu = OPENRISC_CPU(obj); - static int inited; - - cs->env_ptr = &cpu->env; - cpu_exec_init(cs, &error_abort); - -#ifndef CONFIG_USER_ONLY - cpu_openrisc_mmu_init(cpu); -#endif - - if (tcg_enabled() && !inited) { - inited = 1; - openrisc_translate_init(); - } -} - -/* CPU models */ - -static ObjectClass *openrisc_cpu_class_by_name(const char *cpu_model) -{ - ObjectClass *oc; - char *typename; - - if (cpu_model == NULL) { - return NULL; - } - - typename = g_strdup_printf("%s-" TYPE_OPENRISC_CPU, cpu_model); - oc = object_class_by_name(typename); - g_free(typename); - if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_OPENRISC_CPU) || - object_class_is_abstract(oc))) { - return NULL; - } - return oc; -} - -static void or1200_initfn(Object *obj) -{ - OpenRISCCPU *cpu = OPENRISC_CPU(obj); - - set_feature(cpu, OPENRISC_FEATURE_OB32S); - set_feature(cpu, OPENRISC_FEATURE_OF32S); -} - -static void openrisc_any_initfn(Object *obj) -{ - OpenRISCCPU *cpu = OPENRISC_CPU(obj); - - set_feature(cpu, OPENRISC_FEATURE_OB32S); -} - -typedef struct OpenRISCCPUInfo { - const char *name; - void (*initfn)(Object *obj); -} OpenRISCCPUInfo; - -static const OpenRISCCPUInfo openrisc_cpus[] = { - { .name = "or1200", .initfn = or1200_initfn }, - { .name = "any", .initfn = openrisc_any_initfn }, -}; - -static void openrisc_cpu_class_init(ObjectClass *oc, void *data) -{ - OpenRISCCPUClass *occ = OPENRISC_CPU_CLASS(oc); - CPUClass *cc = CPU_CLASS(occ); - DeviceClass *dc = DEVICE_CLASS(oc); - - occ->parent_realize = dc->realize; - dc->realize = openrisc_cpu_realizefn; - - occ->parent_reset = cc->reset; - cc->reset = openrisc_cpu_reset; - - cc->class_by_name = openrisc_cpu_class_by_name; - cc->has_work = openrisc_cpu_has_work; - cc->do_interrupt = openrisc_cpu_do_interrupt; - cc->cpu_exec_interrupt = openrisc_cpu_exec_interrupt; - cc->dump_state = openrisc_cpu_dump_state; - cc->set_pc = openrisc_cpu_set_pc; - cc->gdb_read_register = openrisc_cpu_gdb_read_register; - cc->gdb_write_register = openrisc_cpu_gdb_write_register; -#ifdef CONFIG_USER_ONLY - cc->handle_mmu_fault = openrisc_cpu_handle_mmu_fault; -#else - cc->get_phys_page_debug = openrisc_cpu_get_phys_page_debug; - dc->vmsd = &vmstate_openrisc_cpu; -#endif - cc->gdb_num_core_regs = 32 + 3; - - /* - * Reason: openrisc_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 cpu_register(const OpenRISCCPUInfo *info) -{ - TypeInfo type_info = { - .parent = TYPE_OPENRISC_CPU, - .instance_size = sizeof(OpenRISCCPU), - .instance_init = info->initfn, - .class_size = sizeof(OpenRISCCPUClass), - }; - - type_info.name = g_strdup_printf("%s-" TYPE_OPENRISC_CPU, info->name); - type_register(&type_info); - g_free((void *)type_info.name); -} - -static const TypeInfo openrisc_cpu_type_info = { - .name = TYPE_OPENRISC_CPU, - .parent = TYPE_CPU, - .instance_size = sizeof(OpenRISCCPU), - .instance_init = openrisc_cpu_initfn, - .abstract = true, - .class_size = sizeof(OpenRISCCPUClass), - .class_init = openrisc_cpu_class_init, -}; - -static void openrisc_cpu_register_types(void) -{ - int i; - - type_register_static(&openrisc_cpu_type_info); - for (i = 0; i < ARRAY_SIZE(openrisc_cpus); i++) { - cpu_register(&openrisc_cpus[i]); - } -} - -OpenRISCCPU *cpu_openrisc_init(const char *cpu_model) -{ - return OPENRISC_CPU(cpu_generic_init(TYPE_OPENRISC_CPU, cpu_model)); -} - -/* Sort alphabetically by type name, except for "any". */ -static gint openrisc_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); - if (strcmp(name_a, "any-" TYPE_OPENRISC_CPU) == 0) { - return 1; - } else if (strcmp(name_b, "any-" TYPE_OPENRISC_CPU) == 0) { - return -1; - } else { - return strcmp(name_a, name_b); - } -} - -static void openrisc_cpu_list_entry(gpointer data, gpointer user_data) -{ - ObjectClass *oc = data; - CPUListState *s = user_data; - const char *typename; - char *name; - - typename = object_class_get_name(oc); - name = g_strndup(typename, - strlen(typename) - strlen("-" TYPE_OPENRISC_CPU)); - (*s->cpu_fprintf)(s->file, " %s\n", - name); - g_free(name); -} - -void cpu_openrisc_list(FILE *f, fprintf_function cpu_fprintf) -{ - CPUListState s = { - .file = f, - .cpu_fprintf = cpu_fprintf, - }; - GSList *list; - - list = object_class_get_list(TYPE_OPENRISC_CPU, false); - list = g_slist_sort(list, openrisc_cpu_list_compare); - (*cpu_fprintf)(f, "Available CPUs:\n"); - g_slist_foreach(list, openrisc_cpu_list_entry, &s); - g_slist_free(list); -} - -type_init(openrisc_cpu_register_types) |