irqchip/gic-phytium-2500: Fix issue that interrupts are concentrated in one cpu

Phytium inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I41AUQ
CVE: NA

-------------------------------------------------

Fix the issue that interrupts are concentrated in one cpu
for Phytium S2500 server.
Signed-off-by: NMao HongBo <maohongbo@phytium.com.cn>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>

drivers/irqchip/irq-gic-phytium-2500-its.c

@@ -1675,9 +1675,7 @@ static int its_cpumask_select(struct its_device *its_dev,
     }
 
     cpu = cpumask_any_and(mask_val, cpu_mask);
-    if ((cpu > cpus) && (cpu < (cpus + skt_cpu_cnt[skt_id]))) {
-	cpus = cpu;
-    }
+    cpus = cpus + cpu % skt_cpu_cnt[skt_id];
 
     if (is_kdump_kernel()) {
 	skt = (cpu_logical_map(cpu) >> 16) & 0xff;

drivers/irqchip/irq-gic-phytium-2500.c

@@ -1345,9 +1345,7 @@ static int gic_cpumask_select(struct irq_data *d, const struct cpumask *mask_val
     }
 
     cpu = cpumask_any_and(mask_val, cpu_online_mask);
-    if ((cpu > cpus) && (cpu < (cpus + skt_cpu_cnt[irq_skt]))) {
-	cpus = cpu;
-    }
+    cpus = cpus + cpu % skt_cpu_cnt[irq_skt];
 
     if (is_kdump_kernel()) {
 	skt = (cpu_logical_map(cpu) >> 16) & 0xff;