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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* LoongArch IPI interrupt support
*
* Copyright (C) 2024 Loongson Technology Corporation Limited
*/
#include "qemu/osdep.h"
#include "hw/boards.h"
#include "hw/intc/loongarch_ipi.h"
#include "target/loongarch/cpu.h"
static AddressSpace *get_iocsr_as(CPUState *cpu)
{
return LOONGARCH_CPU(cpu)->env.address_space_iocsr;
}
static int archid_cmp(const void *a, const void *b)
{
CPUArchId *archid_a = (CPUArchId *)a;
CPUArchId *archid_b = (CPUArchId *)b;
return archid_a->arch_id - archid_b->arch_id;
}
static CPUArchId *find_cpu_by_archid(MachineState *ms, uint32_t id)
{
CPUArchId apic_id, *found_cpu;
apic_id.arch_id = id;
found_cpu = bsearch(&apic_id, ms->possible_cpus->cpus,
ms->possible_cpus->len,
sizeof(*ms->possible_cpus->cpus),
archid_cmp);
return found_cpu;
}
static CPUState *loongarch_cpu_by_arch_id(int64_t arch_id)
{
MachineState *machine = MACHINE(qdev_get_machine());
CPUArchId *archid;
archid = find_cpu_by_archid(machine, arch_id);
if (archid) {
return CPU(archid->cpu);
}
return NULL;
}
static void loongarch_ipi_class_init(ObjectClass *klass, void *data)
{
LoongsonIPICommonClass *licc = LOONGSON_IPI_COMMON_CLASS(klass);
licc->get_iocsr_as = get_iocsr_as;
licc->cpu_by_arch_id = loongarch_cpu_by_arch_id;
}
static const TypeInfo loongarch_ipi_types[] = {
{
.name = TYPE_LOONGARCH_IPI,
.parent = TYPE_LOONGSON_IPI_COMMON,
.class_init = loongarch_ipi_class_init,
}
};
DEFINE_TYPES(loongarch_ipi_types)
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