diff options
Diffstat (limited to 'qemu/target-alpha/cpu.c')
| -rw-r--r-- | qemu/target-alpha/cpu.c | 342 |
1 files changed, 0 insertions, 342 deletions
diff --git a/qemu/target-alpha/cpu.c b/qemu/target-alpha/cpu.c deleted file mode 100644 index 8a155cae9..000000000 --- a/qemu/target-alpha/cpu.c +++ /dev/null @@ -1,342 +0,0 @@ -/* - * QEMU Alpha CPU - * - * Copyright (c) 2007 Jocelyn Mayer - * 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 alpha_cpu_set_pc(CPUState *cs, vaddr value) -{ - AlphaCPU *cpu = ALPHA_CPU(cs); - - cpu->env.pc = value; -} - -static bool alpha_cpu_has_work(CPUState *cs) -{ - /* Here we are checking to see if the CPU should wake up from HALT. - We will have gotten into this state only for WTINT from PALmode. */ - /* ??? I'm not sure how the IPL state works with WTINT to keep a CPU - asleep even if (some) interrupts have been asserted. For now, - assume that if a CPU really wants to stay asleep, it will mask - interrupts at the chipset level, which will prevent these bits - from being set in the first place. */ - return cs->interrupt_request & (CPU_INTERRUPT_HARD - | CPU_INTERRUPT_TIMER - | CPU_INTERRUPT_SMP - | CPU_INTERRUPT_MCHK); -} - -static void alpha_cpu_disas_set_info(CPUState *cpu, disassemble_info *info) -{ - info->mach = bfd_mach_alpha_ev6; - info->print_insn = print_insn_alpha; -} - -static void alpha_cpu_realizefn(DeviceState *dev, Error **errp) -{ - CPUState *cs = CPU(dev); - AlphaCPUClass *acc = ALPHA_CPU_GET_CLASS(dev); - - qemu_init_vcpu(cs); - - acc->parent_realize(dev, errp); -} - -/* Sort alphabetically by type name. */ -static gint alpha_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); - return strcmp(name_a, name_b); -} - -static void alpha_cpu_list_entry(gpointer data, gpointer user_data) -{ - ObjectClass *oc = data; - CPUListState *s = user_data; - - (*s->cpu_fprintf)(s->file, " %s\n", - object_class_get_name(oc)); -} - -void alpha_cpu_list(FILE *f, fprintf_function cpu_fprintf) -{ - CPUListState s = { - .file = f, - .cpu_fprintf = cpu_fprintf, - }; - GSList *list; - - list = object_class_get_list(TYPE_ALPHA_CPU, false); - list = g_slist_sort(list, alpha_cpu_list_compare); - (*cpu_fprintf)(f, "Available CPUs:\n"); - g_slist_foreach(list, alpha_cpu_list_entry, &s); - g_slist_free(list); -} - -/* Models */ - -#define TYPE(model) model "-" TYPE_ALPHA_CPU - -typedef struct AlphaCPUAlias { - const char *alias; - const char *typename; -} AlphaCPUAlias; - -static const AlphaCPUAlias alpha_cpu_aliases[] = { - { "21064", TYPE("ev4") }, - { "21164", TYPE("ev5") }, - { "21164a", TYPE("ev56") }, - { "21164pc", TYPE("pca56") }, - { "21264", TYPE("ev6") }, - { "21264a", TYPE("ev67") }, -}; - -static ObjectClass *alpha_cpu_class_by_name(const char *cpu_model) -{ - ObjectClass *oc = NULL; - char *typename; - int i; - - if (cpu_model == NULL) { - return NULL; - } - - oc = object_class_by_name(cpu_model); - if (oc != NULL && object_class_dynamic_cast(oc, TYPE_ALPHA_CPU) != NULL && - !object_class_is_abstract(oc)) { - return oc; - } - - for (i = 0; i < ARRAY_SIZE(alpha_cpu_aliases); i++) { - if (strcmp(cpu_model, alpha_cpu_aliases[i].alias) == 0) { - oc = object_class_by_name(alpha_cpu_aliases[i].typename); - assert(oc != NULL && !object_class_is_abstract(oc)); - return oc; - } - } - - typename = g_strdup_printf("%s-" TYPE_ALPHA_CPU, cpu_model); - oc = object_class_by_name(typename); - g_free(typename); - if (oc != NULL && object_class_is_abstract(oc)) { - oc = NULL; - } - return oc; -} - -AlphaCPU *cpu_alpha_init(const char *cpu_model) -{ - AlphaCPU *cpu; - ObjectClass *cpu_class; - - cpu_class = alpha_cpu_class_by_name(cpu_model); - if (cpu_class == NULL) { - /* Default to ev67; no reason not to emulate insns by default. */ - cpu_class = object_class_by_name(TYPE("ev67")); - } - cpu = ALPHA_CPU(object_new(object_class_get_name(cpu_class))); - - object_property_set_bool(OBJECT(cpu), true, "realized", NULL); - - return cpu; -} - -static void ev4_cpu_initfn(Object *obj) -{ - AlphaCPU *cpu = ALPHA_CPU(obj); - CPUAlphaState *env = &cpu->env; - - env->implver = IMPLVER_2106x; -} - -static const TypeInfo ev4_cpu_type_info = { - .name = TYPE("ev4"), - .parent = TYPE_ALPHA_CPU, - .instance_init = ev4_cpu_initfn, -}; - -static void ev5_cpu_initfn(Object *obj) -{ - AlphaCPU *cpu = ALPHA_CPU(obj); - CPUAlphaState *env = &cpu->env; - - env->implver = IMPLVER_21164; -} - -static const TypeInfo ev5_cpu_type_info = { - .name = TYPE("ev5"), - .parent = TYPE_ALPHA_CPU, - .instance_init = ev5_cpu_initfn, -}; - -static void ev56_cpu_initfn(Object *obj) -{ - AlphaCPU *cpu = ALPHA_CPU(obj); - CPUAlphaState *env = &cpu->env; - - env->amask |= AMASK_BWX; -} - -static const TypeInfo ev56_cpu_type_info = { - .name = TYPE("ev56"), - .parent = TYPE("ev5"), - .instance_init = ev56_cpu_initfn, -}; - -static void pca56_cpu_initfn(Object *obj) -{ - AlphaCPU *cpu = ALPHA_CPU(obj); - CPUAlphaState *env = &cpu->env; - - env->amask |= AMASK_MVI; -} - -static const TypeInfo pca56_cpu_type_info = { - .name = TYPE("pca56"), - .parent = TYPE("ev56"), - .instance_init = pca56_cpu_initfn, -}; - -static void ev6_cpu_initfn(Object *obj) -{ - AlphaCPU *cpu = ALPHA_CPU(obj); - CPUAlphaState *env = &cpu->env; - - env->implver = IMPLVER_21264; - env->amask = AMASK_BWX | AMASK_FIX | AMASK_MVI | AMASK_TRAP; -} - -static const TypeInfo ev6_cpu_type_info = { - .name = TYPE("ev6"), - .parent = TYPE_ALPHA_CPU, - .instance_init = ev6_cpu_initfn, -}; - -static void ev67_cpu_initfn(Object *obj) -{ - AlphaCPU *cpu = ALPHA_CPU(obj); - CPUAlphaState *env = &cpu->env; - - env->amask |= AMASK_CIX | AMASK_PREFETCH; -} - -static const TypeInfo ev67_cpu_type_info = { - .name = TYPE("ev67"), - .parent = TYPE("ev6"), - .instance_init = ev67_cpu_initfn, -}; - -static const TypeInfo ev68_cpu_type_info = { - .name = TYPE("ev68"), - .parent = TYPE("ev67"), -}; - -static void alpha_cpu_initfn(Object *obj) -{ - CPUState *cs = CPU(obj); - AlphaCPU *cpu = ALPHA_CPU(obj); - CPUAlphaState *env = &cpu->env; - - cs->env_ptr = env; - cpu_exec_init(cs, &error_abort); - tlb_flush(cs, 1); - - alpha_translate_init(); - -#if defined(CONFIG_USER_ONLY) - env->ps = PS_USER_MODE; - cpu_alpha_store_fpcr(env, (FPCR_INVD | FPCR_DZED | FPCR_OVFD - | FPCR_UNFD | FPCR_INED | FPCR_DNOD - | FPCR_DYN_NORMAL)); -#endif - env->lock_addr = -1; - env->fen = 1; -} - -static void alpha_cpu_class_init(ObjectClass *oc, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(oc); - CPUClass *cc = CPU_CLASS(oc); - AlphaCPUClass *acc = ALPHA_CPU_CLASS(oc); - - acc->parent_realize = dc->realize; - dc->realize = alpha_cpu_realizefn; - - cc->class_by_name = alpha_cpu_class_by_name; - cc->has_work = alpha_cpu_has_work; - cc->do_interrupt = alpha_cpu_do_interrupt; - cc->cpu_exec_interrupt = alpha_cpu_exec_interrupt; - cc->dump_state = alpha_cpu_dump_state; - cc->set_pc = alpha_cpu_set_pc; - cc->gdb_read_register = alpha_cpu_gdb_read_register; - cc->gdb_write_register = alpha_cpu_gdb_write_register; -#ifdef CONFIG_USER_ONLY - cc->handle_mmu_fault = alpha_cpu_handle_mmu_fault; -#else - cc->do_unassigned_access = alpha_cpu_unassigned_access; - cc->do_unaligned_access = alpha_cpu_do_unaligned_access; - cc->get_phys_page_debug = alpha_cpu_get_phys_page_debug; - dc->vmsd = &vmstate_alpha_cpu; -#endif - cc->disas_set_info = alpha_cpu_disas_set_info; - - cc->gdb_num_core_regs = 67; - - /* - * Reason: alpha_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 const TypeInfo alpha_cpu_type_info = { - .name = TYPE_ALPHA_CPU, - .parent = TYPE_CPU, - .instance_size = sizeof(AlphaCPU), - .instance_init = alpha_cpu_initfn, - .abstract = true, - .class_size = sizeof(AlphaCPUClass), - .class_init = alpha_cpu_class_init, -}; - -static void alpha_cpu_register_types(void) -{ - type_register_static(&alpha_cpu_type_info); - type_register_static(&ev4_cpu_type_info); - type_register_static(&ev5_cpu_type_info); - type_register_static(&ev56_cpu_type_info); - type_register_static(&pca56_cpu_type_info); - type_register_static(&ev6_cpu_type_info); - type_register_static(&ev67_cpu_type_info); - type_register_static(&ev68_cpu_type_info); -} - -type_init(alpha_cpu_register_types) |