From: Yushan Wang <wangyushan12@huawei.com>
To: <will@kernel.org>, <mark.rutland@arm.com>, <robin.murphy@arm.com>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Cc: <fanghao11@huawei.com>, <linuxarm@huawei.com>,
<liuyonglong@huawei.com>, <prime.zeng@hisilicon.com>,
<wangzhou1@hisilicon.com>, <wangyushan12@huawei.com>
Subject: [PATCH v3 2/2] drivers/perf: hisi: Add new function for HiSilicon MN PMU driver
Date: Mon, 13 Jul 2026 20:56:47 +0800 [thread overview]
Message-ID: <20260713125647.2958626-3-wangyushan12@huawei.com> (raw)
In-Reply-To: <20260713125647.2958626-1-wangyushan12@huawei.com>
From: Yifan Wu <wuyifan50@huawei.com>
MN (Miscellaneous Node) is a hybrid node in ARM CHI. The MN PMU driver
using the HiSilicon uncore PMU framework.
On HiSilicon HIP13 platform, cycle event is supported on MN PMU. The
cycle event is exposed directly in driver and some variables shall be
added suffix to distinguish the version.
Signed-off-by: Yifan Wu <wuyifan50@huawei.com>
Signed-off-by: Yushan Wang <wangyushan12@huawei.com>
---
drivers/perf/hisilicon/hisi_uncore_mn_pmu.c | 63 ++++++++++++++++++---
1 file changed, 56 insertions(+), 7 deletions(-)
diff --git a/drivers/perf/hisilicon/hisi_uncore_mn_pmu.c b/drivers/perf/hisilicon/hisi_uncore_mn_pmu.c
index 246cc0333099..f38a5880ca18 100644
--- a/drivers/perf/hisilicon/hisi_uncore_mn_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_mn_pmu.c
@@ -191,7 +191,7 @@ static const struct attribute_group hisi_mn_pmu_format_group = {
.attrs = hisi_mn_pmu_format_attr,
};
-static struct attribute *hisi_mn_pmu_events_attr[] = {
+static struct attribute *hisi_mn_pmu_events_attr_v1[] = {
HISI_PMU_EVENT_ATTR(req_eobarrier_num, 0x00),
HISI_PMU_EVENT_ATTR(req_ecbarrier_num, 0x01),
HISI_PMU_EVENT_ATTR(req_dvmop_num, 0x02),
@@ -218,14 +218,55 @@ static struct attribute *hisi_mn_pmu_events_attr[] = {
NULL
};
-static const struct attribute_group hisi_mn_pmu_events_group = {
+static const struct attribute_group hisi_mn_pmu_events_group_v1 = {
.name = "events",
- .attrs = hisi_mn_pmu_events_attr,
+ .attrs = hisi_mn_pmu_events_attr_v1,
};
-static const struct attribute_group *hisi_mn_pmu_attr_groups[] = {
+static const struct attribute_group *hisi_mn_pmu_attr_groups_v1[] = {
&hisi_mn_pmu_format_group,
- &hisi_mn_pmu_events_group,
+ &hisi_mn_pmu_events_group_v1,
+ &hisi_pmu_cpumask_attr_group,
+ &hisi_pmu_identifier_group,
+ NULL
+};
+
+static struct attribute *hisi_mn_pmu_events_attr_v2[] = {
+ HISI_PMU_EVENT_ATTR(req_eobarrier_num, 0x00),
+ HISI_PMU_EVENT_ATTR(req_ecbarrier_num, 0x01),
+ HISI_PMU_EVENT_ATTR(req_dvmop_num, 0x02),
+ HISI_PMU_EVENT_ATTR(req_dvmsync_num, 0x03),
+ HISI_PMU_EVENT_ATTR(req_retry_num, 0x04),
+ HISI_PMU_EVENT_ATTR(req_writenosnp_num, 0x05),
+ HISI_PMU_EVENT_ATTR(req_readnosnp_num, 0x06),
+ HISI_PMU_EVENT_ATTR(snp_dvm_num, 0x07),
+ HISI_PMU_EVENT_ATTR(snp_dvmsync_num, 0x08),
+ HISI_PMU_EVENT_ATTR(l3t_req_dvm_num, 0x09),
+ HISI_PMU_EVENT_ATTR(l3t_req_dvmsync_num, 0x0A),
+ HISI_PMU_EVENT_ATTR(mn_req_dvm_num, 0x0B),
+ HISI_PMU_EVENT_ATTR(mn_req_dvmsync_num, 0x0C),
+ HISI_PMU_EVENT_ATTR(pa_req_dvm_num, 0x0D),
+ HISI_PMU_EVENT_ATTR(pa_req_dvmsync_num, 0x0E),
+ HISI_PMU_EVENT_ATTR(cycles, 0x0F),
+ HISI_PMU_EVENT_ATTR(snp_dvm_latency, 0x80),
+ HISI_PMU_EVENT_ATTR(snp_dvmsync_latency, 0x81),
+ HISI_PMU_EVENT_ATTR(l3t_req_dvm_latency, 0x82),
+ HISI_PMU_EVENT_ATTR(l3t_req_dvmsync_latency, 0x83),
+ HISI_PMU_EVENT_ATTR(mn_req_dvm_latency, 0x84),
+ HISI_PMU_EVENT_ATTR(mn_req_dvmsync_latency, 0x85),
+ HISI_PMU_EVENT_ATTR(pa_req_dvm_latency, 0x86),
+ HISI_PMU_EVENT_ATTR(pa_req_dvmsync_latency, 0x87),
+ NULL
+};
+
+static const struct attribute_group hisi_mn_pmu_events_group_v2 = {
+ .name = "events",
+ .attrs = hisi_mn_pmu_events_attr_v2,
+};
+
+static const struct attribute_group *hisi_mn_pmu_attr_groups_v2[] = {
+ &hisi_mn_pmu_format_group,
+ &hisi_mn_pmu_events_group_v2,
&hisi_pmu_cpumask_attr_group,
&hisi_pmu_identifier_group,
NULL
@@ -350,14 +391,22 @@ static struct hisi_mn_pmu_regs hisi_mn_v1_pmu_regs = {
};
static const struct hisi_pmu_dev_info hisi_mn_v1 = {
- .attr_groups = hisi_mn_pmu_attr_groups,
+ .attr_groups = hisi_mn_pmu_attr_groups_v1,
+ .counter_bits = 48,
+ .check_event = HISI_MN_EVTYPE_MASK,
+ .private = &hisi_mn_v1_pmu_regs,
+};
+
+static const struct hisi_pmu_dev_info hisi_mn_v2 = {
+ .attr_groups = hisi_mn_pmu_attr_groups_v2,
.counter_bits = 48,
.check_event = HISI_MN_EVTYPE_MASK,
.private = &hisi_mn_v1_pmu_regs,
};
static const struct acpi_device_id hisi_mn_pmu_acpi_match[] = {
- { "HISI0222", (kernel_ulong_t) &hisi_mn_v1 },
+ { "HISI0222", (kernel_ulong_t)&hisi_mn_v1 },
+ { "HISI0224", (kernel_ulong_t)&hisi_mn_v2 },
{ }
};
MODULE_DEVICE_TABLE(acpi, hisi_mn_pmu_acpi_match);
--
2.33.0
prev parent reply other threads:[~2026-07-13 12:57 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-13 12:56 [PATCH v3 0/2] drivers/perf: hisi: Updates for HiSilicon uncore PMUs Yushan Wang
2026-07-13 12:56 ` [PATCH v3 1/2] drivers/perf: hisi: Support uncore ITS PMU Yushan Wang
2026-07-14 12:32 ` Uwe Kleine-König
2026-07-14 12:56 ` Robin Murphy
2026-07-14 13:42 ` Yushan Wang
2026-07-14 13:51 ` Yushan Wang
2026-07-13 12:56 ` Yushan Wang [this message]
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