hw/intc/loongson_ipi: Replace ipi_getcpu with cpu_by_arch_id

cpu_by_arch_id is doing the same thing as our ipi_getcpu logic.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Song Gao <gaosong@loongson.cn>
Message-ID: <20240605-loongson3-ipi-v3-4-ddd2c0e03fa3@flygoat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

hw/intc/loongson_ipi.c

@@ -118,39 +118,6 @@ static MemTxResult send_ipi_data(CPUState *cpu, uint64_t val, hwaddr addr,
     return MEMTX_OK;
 }
 
-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 *ipi_getcpu(int 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 MemTxResult mail_send(uint64_t val, MemTxAttrs attrs)
 {
     uint32_t cpuid;
@@ -158,7 +125,7 @@ static MemTxResult mail_send(uint64_t val, MemTxAttrs attrs)
     CPUState *cs;
 
     cpuid = extract32(val, 16, 10);
-    cs = ipi_getcpu(cpuid);
+    cs = cpu_by_arch_id(cpuid);
     if (cs == NULL) {
         return MEMTX_DECODE_ERROR;
     }
@@ -176,7 +143,7 @@ static MemTxResult any_send(uint64_t val, MemTxAttrs attrs)
     CPUState *cs;
 
     cpuid = extract32(val, 16, 10);
-    cs = ipi_getcpu(cpuid);
+    cs = cpu_by_arch_id(cpuid);
     if (cs == NULL) {
         return MEMTX_DECODE_ERROR;
     }
@@ -227,7 +194,7 @@ static MemTxResult loongson_ipi_core_writel(void *opaque, hwaddr addr,
         cpuid = extract32(val, 16, 10);
         /* IPI status vector */
         vector = extract8(val, 0, 5);
-        cs = ipi_getcpu(cpuid);
+        cs = cpu_by_arch_id(cpuid);
         if (cs == NULL || cs->cpu_index >= ipi->num_cpu) {
             return MEMTX_DECODE_ERROR;
         }