drivers/perf: hisi: Add Support for CPA PMU

On HiSilicon Hip09 platform, there is a CPA (Coherency Protocol Agent) on
each SICL (Super IO Cluster) which implements packet format translation,
route parsing and traffic statistics.

CPA PMU has 8 PMU counters and interrupt is supported to handle counter
overflow. Let's support its driver under the framework of HiSilicon PMU
driver.
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Link: https://lore.kernel.org/r/20220415102352.6665-3-liuqi115@huawei.comSigned-off-by: Will Deacon <will@kernel.org>

drivers/perf/hisilicon/Makefile

 # SPDX-License-Identifier: GPL-2.0-only
 obj-$(CONFIG_HISI_PMU) += hisi_uncore_pmu.o hisi_uncore_l3c_pmu.o \
 			  hisi_uncore_hha_pmu.o hisi_uncore_ddrc_pmu.o hisi_uncore_sllc_pmu.o \
-			  hisi_uncore_pa_pmu.o
+			  hisi_uncore_pa_pmu.o hisi_uncore_cpa_pmu.o
 
 obj-$(CONFIG_HISI_PCIE_PMU) += hisi_pcie_pmu.o

include/linux/cpuhotplug.h

@@ -222,6 +222,7 @@ enum cpuhp_state {
 	CPUHP_AP_PERF_S390_SF_ONLINE,
 	CPUHP_AP_PERF_ARM_CCI_ONLINE,
 	CPUHP_AP_PERF_ARM_CCN_ONLINE,
+	CPUHP_AP_PERF_ARM_HISI_CPA_ONLINE,
 	CPUHP_AP_PERF_ARM_HISI_DDRC_ONLINE,
 	CPUHP_AP_PERF_ARM_HISI_HHA_ONLINE,
 	CPUHP_AP_PERF_ARM_HISI_L3_ONLINE,