Currently we have a RXCPU typedef and a RXCPU type checking macro, but OBJECT_DECLARE* would transform the RXCPU macro into a function, and the function name would conflict with the typedef name. Rename the RXCPU* QOM type check macros to RX_CPU*, so we will avoid the conflict and make the macro names consistent with the TYPE_RX_CPU constant name. This will make future conversion to OBJECT_DECLARE* easier. Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20200825192110.3528606-53-ehabkost@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
226 lines
6 KiB
C
226 lines
6 KiB
C
/*
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* QEMU RX CPU
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*
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* Copyright (c) 2019 Yoshinori Sato
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2 or later, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "qemu/qemu-print.h"
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#include "qapi/error.h"
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#include "cpu.h"
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#include "qemu-common.h"
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#include "migration/vmstate.h"
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#include "exec/exec-all.h"
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#include "hw/loader.h"
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#include "fpu/softfloat.h"
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static void rx_cpu_set_pc(CPUState *cs, vaddr value)
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{
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RXCPU *cpu = RX_CPU(cs);
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cpu->env.pc = value;
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}
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static void rx_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb)
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{
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RXCPU *cpu = RX_CPU(cs);
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cpu->env.pc = tb->pc;
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}
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static bool rx_cpu_has_work(CPUState *cs)
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{
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return cs->interrupt_request &
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(CPU_INTERRUPT_HARD | CPU_INTERRUPT_FIR);
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}
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static void rx_cpu_reset(DeviceState *dev)
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{
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RXCPU *cpu = RX_CPU(dev);
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RXCPUClass *rcc = RX_CPU_GET_CLASS(cpu);
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CPURXState *env = &cpu->env;
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uint32_t *resetvec;
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rcc->parent_reset(dev);
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memset(env, 0, offsetof(CPURXState, end_reset_fields));
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resetvec = rom_ptr(0xfffffffc, 4);
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if (resetvec) {
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/* In the case of kernel, it is ignored because it is not set. */
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env->pc = ldl_p(resetvec);
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}
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rx_cpu_unpack_psw(env, 0, 1);
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env->regs[0] = env->isp = env->usp = 0;
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env->fpsw = 0;
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set_flush_to_zero(1, &env->fp_status);
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set_flush_inputs_to_zero(1, &env->fp_status);
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}
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static void rx_cpu_list_entry(gpointer data, gpointer user_data)
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{
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ObjectClass *oc = data;
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qemu_printf(" %s\n", object_class_get_name(oc));
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}
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void rx_cpu_list(void)
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{
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GSList *list;
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list = object_class_get_list_sorted(TYPE_RX_CPU, false);
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qemu_printf("Available CPUs:\n");
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g_slist_foreach(list, rx_cpu_list_entry, NULL);
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g_slist_free(list);
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}
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static ObjectClass *rx_cpu_class_by_name(const char *cpu_model)
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{
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ObjectClass *oc;
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char *typename;
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oc = object_class_by_name(cpu_model);
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if (oc != NULL && object_class_dynamic_cast(oc, TYPE_RX_CPU) != NULL &&
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!object_class_is_abstract(oc)) {
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return oc;
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}
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typename = g_strdup_printf(RX_CPU_TYPE_NAME("%s"), cpu_model);
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oc = object_class_by_name(typename);
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g_free(typename);
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if (oc != NULL && object_class_is_abstract(oc)) {
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oc = NULL;
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}
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return oc;
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}
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static void rx_cpu_realize(DeviceState *dev, Error **errp)
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{
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CPUState *cs = CPU(dev);
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RXCPUClass *rcc = RX_CPU_GET_CLASS(dev);
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Error *local_err = NULL;
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cpu_exec_realizefn(cs, &local_err);
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if (local_err != NULL) {
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error_propagate(errp, local_err);
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return;
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}
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qemu_init_vcpu(cs);
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cpu_reset(cs);
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rcc->parent_realize(dev, errp);
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}
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static void rx_cpu_set_irq(void *opaque, int no, int request)
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{
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RXCPU *cpu = opaque;
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CPUState *cs = CPU(cpu);
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int irq = request & 0xff;
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static const int mask[] = {
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[RX_CPU_IRQ] = CPU_INTERRUPT_HARD,
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[RX_CPU_FIR] = CPU_INTERRUPT_FIR,
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};
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if (irq) {
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cpu->env.req_irq = irq;
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cpu->env.req_ipl = (request >> 8) & 0x0f;
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cpu_interrupt(cs, mask[no]);
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} else {
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cpu_reset_interrupt(cs, mask[no]);
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}
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}
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static void rx_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
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{
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info->mach = bfd_mach_rx;
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info->print_insn = print_insn_rx;
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}
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static bool rx_cpu_tlb_fill(CPUState *cs, vaddr addr, int size,
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MMUAccessType access_type, int mmu_idx,
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bool probe, uintptr_t retaddr)
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{
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uint32_t address, physical, prot;
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/* Linear mapping */
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address = physical = addr & TARGET_PAGE_MASK;
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prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
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tlb_set_page(cs, address, physical, prot, mmu_idx, TARGET_PAGE_SIZE);
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return true;
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}
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static void rx_cpu_init(Object *obj)
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{
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CPUState *cs = CPU(obj);
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RXCPU *cpu = RX_CPU(obj);
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CPURXState *env = &cpu->env;
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cpu_set_cpustate_pointers(cpu);
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cs->env_ptr = env;
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qdev_init_gpio_in(DEVICE(cpu), rx_cpu_set_irq, 2);
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}
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static void rx_cpu_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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CPUClass *cc = CPU_CLASS(klass);
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RXCPUClass *rcc = RX_CPU_CLASS(klass);
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device_class_set_parent_realize(dc, rx_cpu_realize,
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&rcc->parent_realize);
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device_class_set_parent_reset(dc, rx_cpu_reset,
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&rcc->parent_reset);
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cc->class_by_name = rx_cpu_class_by_name;
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cc->has_work = rx_cpu_has_work;
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cc->do_interrupt = rx_cpu_do_interrupt;
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cc->cpu_exec_interrupt = rx_cpu_exec_interrupt;
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cc->dump_state = rx_cpu_dump_state;
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cc->set_pc = rx_cpu_set_pc;
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cc->synchronize_from_tb = rx_cpu_synchronize_from_tb;
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cc->gdb_read_register = rx_cpu_gdb_read_register;
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cc->gdb_write_register = rx_cpu_gdb_write_register;
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cc->get_phys_page_debug = rx_cpu_get_phys_page_debug;
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cc->disas_set_info = rx_cpu_disas_set_info;
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cc->tcg_initialize = rx_translate_init;
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cc->tlb_fill = rx_cpu_tlb_fill;
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cc->gdb_num_core_regs = 26;
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cc->gdb_core_xml_file = "rx-core.xml";
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}
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static const TypeInfo rx_cpu_info = {
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.name = TYPE_RX_CPU,
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.parent = TYPE_CPU,
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.instance_size = sizeof(RXCPU),
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.instance_init = rx_cpu_init,
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.abstract = true,
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.class_size = sizeof(RXCPUClass),
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.class_init = rx_cpu_class_init,
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};
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static const TypeInfo rx62n_rx_cpu_info = {
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.name = TYPE_RX62N_CPU,
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.parent = TYPE_RX_CPU,
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};
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static void rx_cpu_register_types(void)
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{
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type_register_static(&rx_cpu_info);
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type_register_static(&rx62n_rx_cpu_info);
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}
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type_init(rx_cpu_register_types)
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