diff options
Diffstat (limited to 'qemu/target-lm32/cpu.c')
| -rw-r--r-- | qemu/target-lm32/cpu.c | 328 |
1 files changed, 0 insertions, 328 deletions
diff --git a/qemu/target-lm32/cpu.c b/qemu/target-lm32/cpu.c deleted file mode 100644 index 6e7e1b8e6..000000000 --- a/qemu/target-lm32/cpu.c +++ /dev/null @@ -1,328 +0,0 @@ -/* - * QEMU LatticeMico32 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" - - -static void lm32_cpu_set_pc(CPUState *cs, vaddr value) -{ - LM32CPU *cpu = LM32_CPU(cs); - - cpu->env.pc = value; -} - -/* Sort alphabetically by type name. */ -static gint lm32_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 lm32_cpu_list_entry(gpointer data, gpointer user_data) -{ - ObjectClass *oc = data; - CPUListState *s = user_data; - const char *typename = object_class_get_name(oc); - char *name; - - name = g_strndup(typename, strlen(typename) - strlen("-" TYPE_LM32_CPU)); - (*s->cpu_fprintf)(s->file, " %s\n", name); - g_free(name); -} - - -void lm32_cpu_list(FILE *f, fprintf_function cpu_fprintf) -{ - CPUListState s = { - .file = f, - .cpu_fprintf = cpu_fprintf, - }; - GSList *list; - - list = object_class_get_list(TYPE_LM32_CPU, false); - list = g_slist_sort(list, lm32_cpu_list_compare); - (*cpu_fprintf)(f, "Available CPUs:\n"); - g_slist_foreach(list, lm32_cpu_list_entry, &s); - g_slist_free(list); -} - -static void lm32_cpu_init_cfg_reg(LM32CPU *cpu) -{ - CPULM32State *env = &cpu->env; - uint32_t cfg = 0; - - if (cpu->features & LM32_FEATURE_MULTIPLY) { - cfg |= CFG_M; - } - - if (cpu->features & LM32_FEATURE_DIVIDE) { - cfg |= CFG_D; - } - - if (cpu->features & LM32_FEATURE_SHIFT) { - cfg |= CFG_S; - } - - if (cpu->features & LM32_FEATURE_SIGN_EXTEND) { - cfg |= CFG_X; - } - - if (cpu->features & LM32_FEATURE_I_CACHE) { - cfg |= CFG_IC; - } - - if (cpu->features & LM32_FEATURE_D_CACHE) { - cfg |= CFG_DC; - } - - if (cpu->features & LM32_FEATURE_CYCLE_COUNT) { - cfg |= CFG_CC; - } - - cfg |= (cpu->num_interrupts << CFG_INT_SHIFT); - cfg |= (cpu->num_breakpoints << CFG_BP_SHIFT); - cfg |= (cpu->num_watchpoints << CFG_WP_SHIFT); - cfg |= (cpu->revision << CFG_REV_SHIFT); - - env->cfg = cfg; -} - -static bool lm32_cpu_has_work(CPUState *cs) -{ - return cs->interrupt_request & CPU_INTERRUPT_HARD; -} - -/* CPUClass::reset() */ -static void lm32_cpu_reset(CPUState *s) -{ - LM32CPU *cpu = LM32_CPU(s); - LM32CPUClass *lcc = LM32_CPU_GET_CLASS(cpu); - CPULM32State *env = &cpu->env; - - lcc->parent_reset(s); - - /* reset cpu state */ - memset(env, 0, offsetof(CPULM32State, eba)); - - lm32_cpu_init_cfg_reg(cpu); - tlb_flush(s, 1); -} - -static void lm32_cpu_disas_set_info(CPUState *cpu, disassemble_info *info) -{ - info->mach = bfd_mach_lm32; - info->print_insn = print_insn_lm32; -} - -static void lm32_cpu_realizefn(DeviceState *dev, Error **errp) -{ - CPUState *cs = CPU(dev); - LM32CPUClass *lcc = LM32_CPU_GET_CLASS(dev); - - cpu_reset(cs); - - qemu_init_vcpu(cs); - - lcc->parent_realize(dev, errp); -} - -static void lm32_cpu_initfn(Object *obj) -{ - CPUState *cs = CPU(obj); - LM32CPU *cpu = LM32_CPU(obj); - CPULM32State *env = &cpu->env; - static bool tcg_initialized; - - cs->env_ptr = env; - cpu_exec_init(cs, &error_abort); - - env->flags = 0; - - if (tcg_enabled() && !tcg_initialized) { - tcg_initialized = true; - lm32_translate_init(); - } -} - -static void lm32_basic_cpu_initfn(Object *obj) -{ - LM32CPU *cpu = LM32_CPU(obj); - - cpu->revision = 3; - cpu->num_interrupts = 32; - cpu->num_breakpoints = 4; - cpu->num_watchpoints = 4; - cpu->features = LM32_FEATURE_SHIFT - | LM32_FEATURE_SIGN_EXTEND - | LM32_FEATURE_CYCLE_COUNT; -} - -static void lm32_standard_cpu_initfn(Object *obj) -{ - LM32CPU *cpu = LM32_CPU(obj); - - cpu->revision = 3; - cpu->num_interrupts = 32; - cpu->num_breakpoints = 4; - cpu->num_watchpoints = 4; - cpu->features = LM32_FEATURE_MULTIPLY - | LM32_FEATURE_DIVIDE - | LM32_FEATURE_SHIFT - | LM32_FEATURE_SIGN_EXTEND - | LM32_FEATURE_I_CACHE - | LM32_FEATURE_CYCLE_COUNT; -} - -static void lm32_full_cpu_initfn(Object *obj) -{ - LM32CPU *cpu = LM32_CPU(obj); - - cpu->revision = 3; - cpu->num_interrupts = 32; - cpu->num_breakpoints = 4; - cpu->num_watchpoints = 4; - cpu->features = LM32_FEATURE_MULTIPLY - | LM32_FEATURE_DIVIDE - | LM32_FEATURE_SHIFT - | LM32_FEATURE_SIGN_EXTEND - | LM32_FEATURE_I_CACHE - | LM32_FEATURE_D_CACHE - | LM32_FEATURE_CYCLE_COUNT; -} - -typedef struct LM32CPUInfo { - const char *name; - void (*initfn)(Object *obj); -} LM32CPUInfo; - -static const LM32CPUInfo lm32_cpus[] = { - { - .name = "lm32-basic", - .initfn = lm32_basic_cpu_initfn, - }, - { - .name = "lm32-standard", - .initfn = lm32_standard_cpu_initfn, - }, - { - .name = "lm32-full", - .initfn = lm32_full_cpu_initfn, - }, -}; - -static ObjectClass *lm32_cpu_class_by_name(const char *cpu_model) -{ - ObjectClass *oc; - char *typename; - - if (cpu_model == NULL) { - return NULL; - } - - typename = g_strdup_printf("%s-" TYPE_LM32_CPU, cpu_model); - oc = object_class_by_name(typename); - g_free(typename); - if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_LM32_CPU) || - object_class_is_abstract(oc))) { - oc = NULL; - } - return oc; -} - -static void lm32_cpu_class_init(ObjectClass *oc, void *data) -{ - LM32CPUClass *lcc = LM32_CPU_CLASS(oc); - CPUClass *cc = CPU_CLASS(oc); - DeviceClass *dc = DEVICE_CLASS(oc); - - lcc->parent_realize = dc->realize; - dc->realize = lm32_cpu_realizefn; - - lcc->parent_reset = cc->reset; - cc->reset = lm32_cpu_reset; - - cc->class_by_name = lm32_cpu_class_by_name; - cc->has_work = lm32_cpu_has_work; - cc->do_interrupt = lm32_cpu_do_interrupt; - cc->cpu_exec_interrupt = lm32_cpu_exec_interrupt; - cc->dump_state = lm32_cpu_dump_state; - cc->set_pc = lm32_cpu_set_pc; - cc->gdb_read_register = lm32_cpu_gdb_read_register; - cc->gdb_write_register = lm32_cpu_gdb_write_register; -#ifdef CONFIG_USER_ONLY - cc->handle_mmu_fault = lm32_cpu_handle_mmu_fault; -#else - cc->get_phys_page_debug = lm32_cpu_get_phys_page_debug; - cc->vmsd = &vmstate_lm32_cpu; -#endif - cc->gdb_num_core_regs = 32 + 7; - cc->gdb_stop_before_watchpoint = true; - cc->debug_excp_handler = lm32_debug_excp_handler; - cc->disas_set_info = lm32_cpu_disas_set_info; - - /* - * Reason: lm32_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 lm32_register_cpu_type(const LM32CPUInfo *info) -{ - TypeInfo type_info = { - .parent = TYPE_LM32_CPU, - .instance_init = info->initfn, - }; - - type_info.name = g_strdup_printf("%s-" TYPE_LM32_CPU, info->name); - type_register(&type_info); - g_free((void *)type_info.name); -} - -static const TypeInfo lm32_cpu_type_info = { - .name = TYPE_LM32_CPU, - .parent = TYPE_CPU, - .instance_size = sizeof(LM32CPU), - .instance_init = lm32_cpu_initfn, - .abstract = true, - .class_size = sizeof(LM32CPUClass), - .class_init = lm32_cpu_class_init, -}; - -static void lm32_cpu_register_types(void) -{ - int i; - - type_register_static(&lm32_cpu_type_info); - for (i = 0; i < ARRAY_SIZE(lm32_cpus); i++) { - lm32_register_cpu_type(&lm32_cpus[i]); - } -} - -type_init(lm32_cpu_register_types) |