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authorWill Deacon <will@kernel.org>2021-02-12 18:09:34 +0300
committerWill Deacon <will@kernel.org>2021-02-12 18:09:34 +0300
commitc974a8e574f9644aba0607958a3abce596699dc1 (patch)
tree22db764b922cbd83fa8497099fb162581a6b99da
parent1d32854ea76331d10d376ed3ac67831b94466ae9 (diff)
parent8ee37e0f97ec66b953d202257293670efaab1daa (diff)
downloadlinux-c974a8e574f9644aba0607958a3abce596699dc1.tar.xz
Merge branch 'for-next/perf' into for-next/core
Perf and PMU updates including support for Cortex-A78 and the v8.3 SPE extensions. * for-next/perf: drivers/perf: Replace spin_lock_irqsave to spin_lock dt-bindings: arm: add Cortex-A78 binding arm64: perf: add support for Cortex-A78 arm64: perf: Constify static attribute_group structs drivers/perf: Prevent forced unbinding of ARM_DMC620_PMU drivers perf/arm-cmn: Move IRQs when migrating context perf/arm-cmn: Fix PMU instance naming perf: Constify static struct attribute_group perf: hisi: Constify static struct attribute_group perf/imx_ddr: Constify static struct attribute_group perf: qcom: Constify static struct attribute_group drivers/perf: Add support for ARMv8.3-SPE
-rw-r--r--Documentation/admin-guide/perf/arm-cmn.rst2
-rw-r--r--Documentation/devicetree/bindings/arm/pmu.yaml1
-rw-r--r--arch/arm64/include/asm/sysreg.h9
-rw-r--r--arch/arm64/kernel/perf_event.c13
-rw-r--r--drivers/perf/arm-cci.c7
-rw-r--r--drivers/perf/arm-cmn.c19
-rw-r--r--drivers/perf/arm_dmc620_pmu.c5
-rw-r--r--drivers/perf/arm_pmu.c2
-rw-r--r--drivers/perf/arm_smmuv3_pmu.c8
-rw-r--r--drivers/perf/arm_spe_pmu.c23
-rw-r--r--drivers/perf/fsl_imx8_ddr_perf.c10
-rw-r--r--drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c2
-rw-r--r--drivers/perf/hisilicon/hisi_uncore_hha_pmu.c2
-rw-r--r--drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c2
-rw-r--r--drivers/perf/qcom_l2_pmu.c6
-rw-r--r--drivers/perf/qcom_l3_pmu.c6
-rw-r--r--drivers/perf/xgene_pmu.c5
17 files changed, 73 insertions, 49 deletions
diff --git a/Documentation/admin-guide/perf/arm-cmn.rst b/Documentation/admin-guide/perf/arm-cmn.rst
index 0e4809346014..796e25b7027b 100644
--- a/Documentation/admin-guide/perf/arm-cmn.rst
+++ b/Documentation/admin-guide/perf/arm-cmn.rst
@@ -17,7 +17,7 @@ PMU events
----------
The PMU driver registers a single PMU device for the whole interconnect,
-see /sys/bus/event_source/devices/arm_cmn. Multi-chip systems may link
+see /sys/bus/event_source/devices/arm_cmn_0. Multi-chip systems may link
more than one CMN together via external CCIX links - in this situation,
each mesh counts its own events entirely independently, and additional
PMU devices will be named arm_cmn_{1..n}.
diff --git a/Documentation/devicetree/bindings/arm/pmu.yaml b/Documentation/devicetree/bindings/arm/pmu.yaml
index 693ef3f185a8..e17ac049e890 100644
--- a/Documentation/devicetree/bindings/arm/pmu.yaml
+++ b/Documentation/devicetree/bindings/arm/pmu.yaml
@@ -43,6 +43,7 @@ properties:
- arm,cortex-a75-pmu
- arm,cortex-a76-pmu
- arm,cortex-a77-pmu
+ - arm,cortex-a78-pmu
- arm,neoverse-e1-pmu
- arm,neoverse-n1-pmu
- brcm,vulcan-pmu
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 8b5e7e5c3cc8..767bb2d47be9 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -291,7 +291,11 @@
#define SYS_PMSFCR_EL1_ST_SHIFT 18
#define SYS_PMSEVFR_EL1 sys_reg(3, 0, 9, 9, 5)
-#define SYS_PMSEVFR_EL1_RES0 0x0000ffff00ff0f55UL
+#define SYS_PMSEVFR_EL1_RES0_8_2 \
+ (GENMASK_ULL(47, 32) | GENMASK_ULL(23, 16) | GENMASK_ULL(11, 8) |\
+ BIT_ULL(6) | BIT_ULL(4) | BIT_ULL(2) | BIT_ULL(0))
+#define SYS_PMSEVFR_EL1_RES0_8_3 \
+ (SYS_PMSEVFR_EL1_RES0_8_2 & ~(BIT_ULL(18) | BIT_ULL(17) | BIT_ULL(11)))
#define SYS_PMSLATFR_EL1 sys_reg(3, 0, 9, 9, 6)
#define SYS_PMSLATFR_EL1_MINLAT_SHIFT 0
@@ -844,6 +848,9 @@
#define ID_AA64DFR0_PMUVER_8_5 0x6
#define ID_AA64DFR0_PMUVER_IMP_DEF 0xf
+#define ID_AA64DFR0_PMSVER_8_2 0x1
+#define ID_AA64DFR0_PMSVER_8_3 0x2
+
#define ID_DFR0_PERFMON_SHIFT 24
#define ID_DFR0_PERFMON_8_1 0x4
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index d1fec4ab4bcf..7d2318f80955 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -280,7 +280,7 @@ armv8pmu_event_attr_is_visible(struct kobject *kobj,
return 0;
}
-static struct attribute_group armv8_pmuv3_events_attr_group = {
+static const struct attribute_group armv8_pmuv3_events_attr_group = {
.name = "events",
.attrs = armv8_pmuv3_event_attrs,
.is_visible = armv8pmu_event_attr_is_visible,
@@ -300,7 +300,7 @@ static struct attribute *armv8_pmuv3_format_attrs[] = {
NULL,
};
-static struct attribute_group armv8_pmuv3_format_attr_group = {
+static const struct attribute_group armv8_pmuv3_format_attr_group = {
.name = "format",
.attrs = armv8_pmuv3_format_attrs,
};
@@ -322,7 +322,7 @@ static struct attribute *armv8_pmuv3_caps_attrs[] = {
NULL,
};
-static struct attribute_group armv8_pmuv3_caps_attr_group = {
+static const struct attribute_group armv8_pmuv3_caps_attr_group = {
.name = "caps",
.attrs = armv8_pmuv3_caps_attrs,
};
@@ -1188,6 +1188,12 @@ static int armv8_a77_pmu_init(struct arm_pmu *cpu_pmu)
armv8_pmuv3_map_event);
}
+static int armv8_a78_pmu_init(struct arm_pmu *cpu_pmu)
+{
+ return armv8_pmu_init_nogroups(cpu_pmu, "armv8_cortex_a78",
+ armv8_pmuv3_map_event);
+}
+
static int armv8_e1_pmu_init(struct arm_pmu *cpu_pmu)
{
return armv8_pmu_init_nogroups(cpu_pmu, "armv8_neoverse_e1",
@@ -1225,6 +1231,7 @@ static const struct of_device_id armv8_pmu_of_device_ids[] = {
{.compatible = "arm,cortex-a75-pmu", .data = armv8_a75_pmu_init},
{.compatible = "arm,cortex-a76-pmu", .data = armv8_a76_pmu_init},
{.compatible = "arm,cortex-a77-pmu", .data = armv8_a77_pmu_init},
+ {.compatible = "arm,cortex-a78-pmu", .data = armv8_a78_pmu_init},
{.compatible = "arm,neoverse-e1-pmu", .data = armv8_e1_pmu_init},
{.compatible = "arm,neoverse-n1-pmu", .data = armv8_n1_pmu_init},
{.compatible = "cavium,thunder-pmu", .data = armv8_thunder_pmu_init},
diff --git a/drivers/perf/arm-cci.c b/drivers/perf/arm-cci.c
index 87c4be9dd412..f81e2ec90005 100644
--- a/drivers/perf/arm-cci.c
+++ b/drivers/perf/arm-cci.c
@@ -1026,12 +1026,11 @@ static void pmu_event_set_period(struct perf_event *event)
static irqreturn_t pmu_handle_irq(int irq_num, void *dev)
{
- unsigned long flags;
struct cci_pmu *cci_pmu = dev;
struct cci_pmu_hw_events *events = &cci_pmu->hw_events;
int idx, handled = IRQ_NONE;
- raw_spin_lock_irqsave(&events->pmu_lock, flags);
+ raw_spin_lock(&events->pmu_lock);
/* Disable the PMU while we walk through the counters */
__cci_pmu_disable(cci_pmu);
@@ -1061,7 +1060,7 @@ static irqreturn_t pmu_handle_irq(int irq_num, void *dev)
/* Enable the PMU and sync possibly overflowed counters */
__cci_pmu_enable_sync(cci_pmu);
- raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
+ raw_spin_unlock(&events->pmu_lock);
return IRQ_RETVAL(handled);
}
@@ -1376,7 +1375,7 @@ static struct attribute *pmu_attrs[] = {
NULL,
};
-static struct attribute_group pmu_attr_group = {
+static const struct attribute_group pmu_attr_group = {
.attrs = pmu_attrs,
};
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index a76ff594f3ca..1328159fe564 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -616,7 +616,7 @@ static struct attribute *arm_cmn_cpumask_attrs[] = {
NULL,
};
-static struct attribute_group arm_cmn_cpumask_attr_group = {
+static const struct attribute_group arm_cmn_cpumask_attr_group = {
.attrs = arm_cmn_cpumask_attrs,
};
@@ -1150,7 +1150,7 @@ static int arm_cmn_commit_txn(struct pmu *pmu)
static int arm_cmn_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node)
{
struct arm_cmn *cmn;
- unsigned int target;
+ unsigned int i, target;
cmn = hlist_entry_safe(node, struct arm_cmn, cpuhp_node);
if (cpu != cmn->cpu)
@@ -1161,6 +1161,8 @@ static int arm_cmn_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node)
return 0;
perf_pmu_migrate_context(&cmn->pmu, cpu, target);
+ for (i = 0; i < cmn->num_dtcs; i++)
+ irq_set_affinity_hint(cmn->dtc[i].irq, cpumask_of(target));
cmn->cpu = target;
return 0;
}
@@ -1502,7 +1504,7 @@ static int arm_cmn_probe(struct platform_device *pdev)
struct arm_cmn *cmn;
const char *name;
static atomic_t id;
- int err, rootnode, this_id;
+ int err, rootnode;
cmn = devm_kzalloc(&pdev->dev, sizeof(*cmn), GFP_KERNEL);
if (!cmn)
@@ -1549,14 +1551,9 @@ static int arm_cmn_probe(struct platform_device *pdev)
.cancel_txn = arm_cmn_end_txn,
};
- this_id = atomic_fetch_inc(&id);
- if (this_id == 0) {
- name = "arm_cmn";
- } else {
- name = devm_kasprintf(cmn->dev, GFP_KERNEL, "arm_cmn_%d", this_id);
- if (!name)
- return -ENOMEM;
- }
+ name = devm_kasprintf(cmn->dev, GFP_KERNEL, "arm_cmn_%d", atomic_fetch_inc(&id));
+ if (!name)
+ return -ENOMEM;
err = cpuhp_state_add_instance(arm_cmn_hp_state, &cmn->cpuhp_node);
if (err)
diff --git a/drivers/perf/arm_dmc620_pmu.c b/drivers/perf/arm_dmc620_pmu.c
index 004930eb4bbb..66ad5b3ece19 100644
--- a/drivers/perf/arm_dmc620_pmu.c
+++ b/drivers/perf/arm_dmc620_pmu.c
@@ -159,7 +159,7 @@ static struct attribute *dmc620_pmu_events_attrs[] = {
NULL,
};
-static struct attribute_group dmc620_pmu_events_attr_group = {
+static const struct attribute_group dmc620_pmu_events_attr_group = {
.name = "events",
.attrs = dmc620_pmu_events_attrs,
};
@@ -222,7 +222,7 @@ static struct attribute *dmc620_pmu_formats_attrs[] = {
NULL,
};
-static struct attribute_group dmc620_pmu_format_attr_group = {
+static const struct attribute_group dmc620_pmu_format_attr_group = {
.name = "format",
.attrs = dmc620_pmu_formats_attrs,
};
@@ -717,6 +717,7 @@ static struct platform_driver dmc620_pmu_driver = {
.driver = {
.name = DMC620_DRVNAME,
.acpi_match_table = dmc620_acpi_match,
+ .suppress_bind_attrs = true,
},
.probe = dmc620_pmu_device_probe,
.remove = dmc620_pmu_device_remove,
diff --git a/drivers/perf/arm_pmu.c b/drivers/perf/arm_pmu.c
index cb2f55f450e4..2d10d84fb79c 100644
--- a/drivers/perf/arm_pmu.c
+++ b/drivers/perf/arm_pmu.c
@@ -577,7 +577,7 @@ static struct attribute *armpmu_common_attrs[] = {
NULL,
};
-static struct attribute_group armpmu_common_attr_group = {
+static const struct attribute_group armpmu_common_attr_group = {
.attrs = armpmu_common_attrs,
};
diff --git a/drivers/perf/arm_smmuv3_pmu.c b/drivers/perf/arm_smmuv3_pmu.c
index 74474bb322c3..8ff7a67f691c 100644
--- a/drivers/perf/arm_smmuv3_pmu.c
+++ b/drivers/perf/arm_smmuv3_pmu.c
@@ -493,7 +493,7 @@ static struct attribute *smmu_pmu_cpumask_attrs[] = {
NULL
};
-static struct attribute_group smmu_pmu_cpumask_group = {
+static const struct attribute_group smmu_pmu_cpumask_group = {
.attrs = smmu_pmu_cpumask_attrs,
};
@@ -548,7 +548,7 @@ static umode_t smmu_pmu_event_is_visible(struct kobject *kobj,
return 0;
}
-static struct attribute_group smmu_pmu_events_group = {
+static const struct attribute_group smmu_pmu_events_group = {
.name = "events",
.attrs = smmu_pmu_events,
.is_visible = smmu_pmu_event_is_visible,
@@ -583,7 +583,7 @@ static struct attribute *smmu_pmu_identifier_attrs[] = {
NULL
};
-static struct attribute_group smmu_pmu_identifier_group = {
+static const struct attribute_group smmu_pmu_identifier_group = {
.attrs = smmu_pmu_identifier_attrs,
.is_visible = smmu_pmu_identifier_attr_visible,
};
@@ -602,7 +602,7 @@ static struct attribute *smmu_pmu_formats[] = {
NULL
};
-static struct attribute_group smmu_pmu_format_group = {
+static const struct attribute_group smmu_pmu_format_group = {
.name = "format",
.attrs = smmu_pmu_formats,
};
diff --git a/drivers/perf/arm_spe_pmu.c b/drivers/perf/arm_spe_pmu.c
index cc00915ad6d1..d3929ccebfd2 100644
--- a/drivers/perf/arm_spe_pmu.c
+++ b/drivers/perf/arm_spe_pmu.c
@@ -54,7 +54,7 @@ struct arm_spe_pmu {
struct hlist_node hotplug_node;
int irq; /* PPI */
-
+ u16 pmsver;
u16 min_period;
u16 counter_sz;
@@ -146,7 +146,7 @@ static struct attribute *arm_spe_pmu_cap_attr[] = {
NULL,
};
-static struct attribute_group arm_spe_pmu_cap_group = {
+static const struct attribute_group arm_spe_pmu_cap_group = {
.name = "caps",
.attrs = arm_spe_pmu_cap_attr,
};
@@ -227,7 +227,7 @@ static struct attribute *arm_spe_pmu_formats_attr[] = {
NULL,
};
-static struct attribute_group arm_spe_pmu_format_group = {
+static const struct attribute_group arm_spe_pmu_format_group = {
.name = "format",
.attrs = arm_spe_pmu_formats_attr,
};
@@ -247,7 +247,7 @@ static struct attribute *arm_spe_pmu_attrs[] = {
NULL,
};
-static struct attribute_group arm_spe_pmu_group = {
+static const struct attribute_group arm_spe_pmu_group = {
.attrs = arm_spe_pmu_attrs,
};
@@ -655,6 +655,18 @@ static irqreturn_t arm_spe_pmu_irq_handler(int irq, void *dev)
return IRQ_HANDLED;
}
+static u64 arm_spe_pmsevfr_res0(u16 pmsver)
+{
+ switch (pmsver) {
+ case ID_AA64DFR0_PMSVER_8_2:
+ return SYS_PMSEVFR_EL1_RES0_8_2;
+ case ID_AA64DFR0_PMSVER_8_3:
+ /* Return the highest version we support in default */
+ default:
+ return SYS_PMSEVFR_EL1_RES0_8_3;
+ }
+}
+
/* Perf callbacks */
static int arm_spe_pmu_event_init(struct perf_event *event)
{
@@ -670,7 +682,7 @@ static int arm_spe_pmu_event_init(struct perf_event *event)
!cpumask_test_cpu(event->cpu, &spe_pmu->supported_cpus))
return -ENOENT;
- if (arm_spe_event_to_pmsevfr(event) & SYS_PMSEVFR_EL1_RES0)
+ if (arm_spe_event_to_pmsevfr(event) & arm_spe_pmsevfr_res0(spe_pmu->pmsver))
return -EOPNOTSUPP;
if (attr->exclude_idle)
@@ -937,6 +949,7 @@ static void __arm_spe_pmu_dev_probe(void *info)
fld, smp_processor_id());
return;
}
+ spe_pmu->pmsver = (u16)fld;
/* Read PMBIDR first to determine whether or not we have access */
reg = read_sysreg_s(SYS_PMBIDR_EL1);
diff --git a/drivers/perf/fsl_imx8_ddr_perf.c b/drivers/perf/fsl_imx8_ddr_perf.c
index a11bfd8a0823..be1f26b62ddb 100644
--- a/drivers/perf/fsl_imx8_ddr_perf.c
+++ b/drivers/perf/fsl_imx8_ddr_perf.c
@@ -133,7 +133,7 @@ static struct attribute *ddr_perf_identifier_attrs[] = {
NULL,
};
-static struct attribute_group ddr_perf_identifier_attr_group = {
+static const struct attribute_group ddr_perf_identifier_attr_group = {
.attrs = ddr_perf_identifier_attrs,
.is_visible = ddr_perf_identifier_attr_visible,
};
@@ -188,7 +188,7 @@ static struct attribute *ddr_perf_filter_cap_attr[] = {
NULL,
};
-static struct attribute_group ddr_perf_filter_cap_attr_group = {
+static const struct attribute_group ddr_perf_filter_cap_attr_group = {
.name = "caps",
.attrs = ddr_perf_filter_cap_attr,
};
@@ -209,7 +209,7 @@ static struct attribute *ddr_perf_cpumask_attrs[] = {
NULL,
};
-static struct attribute_group ddr_perf_cpumask_attr_group = {
+static const struct attribute_group ddr_perf_cpumask_attr_group = {
.attrs = ddr_perf_cpumask_attrs,
};
@@ -265,7 +265,7 @@ static struct attribute *ddr_perf_events_attrs[] = {
NULL,
};
-static struct attribute_group ddr_perf_events_attr_group = {
+static const struct attribute_group ddr_perf_events_attr_group = {
.name = "events",
.attrs = ddr_perf_events_attrs,
};
@@ -281,7 +281,7 @@ static struct attribute *ddr_perf_format_attrs[] = {
NULL,
};
-static struct attribute_group ddr_perf_format_attr_group = {
+static const struct attribute_group ddr_perf_format_attr_group = {
.name = "format",
.attrs = ddr_perf_format_attrs,
};
diff --git a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
index 5ac6c9113767..ac1a8c120a00 100644
--- a/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_ddrc_pmu.c
@@ -319,7 +319,7 @@ static struct attribute *hisi_ddrc_pmu_identifier_attrs[] = {
NULL
};
-static struct attribute_group hisi_ddrc_pmu_identifier_group = {
+static const struct attribute_group hisi_ddrc_pmu_identifier_group = {
.attrs = hisi_ddrc_pmu_identifier_attrs,
};
diff --git a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
index 41b2dceb5f26..3402f1a395a8 100644
--- a/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_hha_pmu.c
@@ -331,7 +331,7 @@ static struct attribute *hisi_hha_pmu_identifier_attrs[] = {
NULL
};
-static struct attribute_group hisi_hha_pmu_identifier_group = {
+static const struct attribute_group hisi_hha_pmu_identifier_group = {
.attrs = hisi_hha_pmu_identifier_attrs,
};
diff --git a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
index 705501d18d03..7d792435c2aa 100644
--- a/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
+++ b/drivers/perf/hisilicon/hisi_uncore_l3c_pmu.c
@@ -321,7 +321,7 @@ static struct attribute *hisi_l3c_pmu_identifier_attrs[] = {
NULL
};
-static struct attribute_group hisi_l3c_pmu_identifier_group = {
+static const struct attribute_group hisi_l3c_pmu_identifier_group = {
.attrs = hisi_l3c_pmu_identifier_attrs,
};
diff --git a/drivers/perf/qcom_l2_pmu.c b/drivers/perf/qcom_l2_pmu.c
index 23a0e008dafa..8883af955a2a 100644
--- a/drivers/perf/qcom_l2_pmu.c
+++ b/drivers/perf/qcom_l2_pmu.c
@@ -649,7 +649,7 @@ static struct attribute *l2_cache_pmu_cpumask_attrs[] = {
NULL,
};
-static struct attribute_group l2_cache_pmu_cpumask_group = {
+static const struct attribute_group l2_cache_pmu_cpumask_group = {
.attrs = l2_cache_pmu_cpumask_attrs,
};
@@ -665,7 +665,7 @@ static struct attribute *l2_cache_pmu_formats[] = {
NULL,
};
-static struct attribute_group l2_cache_pmu_format_group = {
+static const struct attribute_group l2_cache_pmu_format_group = {
.name = "format",
.attrs = l2_cache_pmu_formats,
};
@@ -700,7 +700,7 @@ static struct attribute *l2_cache_pmu_events[] = {
NULL
};
-static struct attribute_group l2_cache_pmu_events_group = {
+static const struct attribute_group l2_cache_pmu_events_group = {
.name = "events",
.attrs = l2_cache_pmu_events,
};
diff --git a/drivers/perf/qcom_l3_pmu.c b/drivers/perf/qcom_l3_pmu.c
index 9ddb577c542b..fb34b87b9471 100644
--- a/drivers/perf/qcom_l3_pmu.c
+++ b/drivers/perf/qcom_l3_pmu.c
@@ -630,7 +630,7 @@ static struct attribute *qcom_l3_cache_pmu_formats[] = {
NULL,
};
-static struct attribute_group qcom_l3_cache_pmu_format_group = {
+static const struct attribute_group qcom_l3_cache_pmu_format_group = {
.name = "format",
.attrs = qcom_l3_cache_pmu_formats,
};
@@ -663,7 +663,7 @@ static struct attribute *qcom_l3_cache_pmu_events[] = {
NULL
};
-static struct attribute_group qcom_l3_cache_pmu_events_group = {
+static const struct attribute_group qcom_l3_cache_pmu_events_group = {
.name = "events",
.attrs = qcom_l3_cache_pmu_events,
};
@@ -685,7 +685,7 @@ static struct attribute *qcom_l3_cache_pmu_cpumask_attrs[] = {
NULL,
};
-static struct attribute_group qcom_l3_cache_pmu_cpumask_attr_group = {
+static const struct attribute_group qcom_l3_cache_pmu_cpumask_attr_group = {
.attrs = qcom_l3_cache_pmu_cpumask_attrs,
};
diff --git a/drivers/perf/xgene_pmu.c b/drivers/perf/xgene_pmu.c
index 633cf07ba672..44faa51ba799 100644
--- a/drivers/perf/xgene_pmu.c
+++ b/drivers/perf/xgene_pmu.c
@@ -1234,10 +1234,9 @@ static irqreturn_t xgene_pmu_isr(int irq, void *dev_id)
u32 intr_mcu, intr_mcb, intr_l3c, intr_iob;
struct xgene_pmu_dev_ctx *ctx;
struct xgene_pmu *xgene_pmu = dev_id;
- unsigned long flags;
u32 val;
- raw_spin_lock_irqsave(&xgene_pmu->lock, flags);
+ raw_spin_lock(&xgene_pmu->lock);
/* Get Interrupt PMU source */
val = readl(xgene_pmu->pcppmu_csr + PCPPMU_INTSTATUS_REG);
@@ -1273,7 +1272,7 @@ static irqreturn_t xgene_pmu_isr(int irq, void *dev_id)
}
}
- raw_spin_unlock_irqrestore(&xgene_pmu->lock, flags);
+ raw_spin_unlock(&xgene_pmu->lock);
return IRQ_HANDLED;
}