From: "Rob Herring (Arm)" <robh@kernel.org>
To: Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Jonathan Corbet <corbet@lwn.net>, Marc Zyngier <maz@kernel.org>,
Oliver Upton <oliver.upton@linux.dev>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
James Clark <james.clark@linaro.org>,
Anshuman Khandual <anshuman.khandual@arm.com>,
Leo Yan <leo.yan@arm.com>
Cc: linux-arm-kernel@lists.infradead.org,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-doc@vger.kernel.org, kvmarm@lists.linux.dev
Subject: [PATCH v20 07/11] perf: arm_pmu: Move PMUv3-specific data
Date: Tue, 18 Feb 2025 14:40:02 -0600 [thread overview]
Message-ID: <20250218-arm-brbe-v19-v20-7-4e9922fc2e8e@kernel.org> (raw)
In-Reply-To: <20250218-arm-brbe-v19-v20-0-4e9922fc2e8e@kernel.org>
From: Mark Rutland <mark.rutland@arm.com>
A few fields in struct arm_pmu are only used with PMUv3, and soon we
will need to add more for BRBE. Group the fields together so that we
have a logical place to add more data in future.
At the same time, remove the comment for reg_pmmir as it doesn't convey
anything useful.
There should be no functional change as a result of this patch.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: "Rob Herring (Arm)" <robh@kernel.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
include/linux/perf/arm_pmu.h | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h
index 4b5b83677e3f..c70d528594f2 100644
--- a/include/linux/perf/arm_pmu.h
+++ b/include/linux/perf/arm_pmu.h
@@ -84,7 +84,6 @@ struct arm_pmu {
struct pmu pmu;
cpumask_t supported_cpus;
char *name;
- int pmuver;
irqreturn_t (*handle_irq)(struct arm_pmu *pmu);
void (*enable)(struct perf_event *event);
void (*disable)(struct perf_event *event);
@@ -102,18 +101,20 @@ struct arm_pmu {
int (*map_event)(struct perf_event *event);
DECLARE_BITMAP(cntr_mask, ARMPMU_MAX_HWEVENTS);
bool secure_access; /* 32-bit ARM only */
-#define ARMV8_PMUV3_MAX_COMMON_EVENTS 0x40
- DECLARE_BITMAP(pmceid_bitmap, ARMV8_PMUV3_MAX_COMMON_EVENTS);
-#define ARMV8_PMUV3_EXT_COMMON_EVENT_BASE 0x4000
- DECLARE_BITMAP(pmceid_ext_bitmap, ARMV8_PMUV3_MAX_COMMON_EVENTS);
struct platform_device *plat_device;
struct pmu_hw_events __percpu *hw_events;
struct hlist_node node;
struct notifier_block cpu_pm_nb;
/* the attr_groups array must be NULL-terminated */
const struct attribute_group *attr_groups[ARMPMU_NR_ATTR_GROUPS + 1];
- /* store the PMMIR_EL1 to expose slots */
+
+ /* PMUv3 only */
+ int pmuver;
u64 reg_pmmir;
+#define ARMV8_PMUV3_MAX_COMMON_EVENTS 0x40
+ DECLARE_BITMAP(pmceid_bitmap, ARMV8_PMUV3_MAX_COMMON_EVENTS);
+#define ARMV8_PMUV3_EXT_COMMON_EVENT_BASE 0x4000
+ DECLARE_BITMAP(pmceid_ext_bitmap, ARMV8_PMUV3_MAX_COMMON_EVENTS);
/* Only to be used by ACPI probing code */
unsigned long acpi_cpuid;
--
2.47.2
next prev parent reply other threads:[~2025-02-18 20:40 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-18 20:39 [PATCH v20 00/11] arm64/perf: Enable branch stack sampling Rob Herring (Arm)
2025-02-18 20:39 ` [PATCH v20 01/11] perf: arm_pmuv3: Call kvm_vcpu_pmu_resync_el0() before enabling counters Rob Herring (Arm)
2025-02-18 20:39 ` [PATCH v20 02/11] perf: arm_pmu: Don't disable counter in armpmu_add() Rob Herring (Arm)
2025-02-18 20:39 ` [PATCH v20 03/11] perf: arm_pmuv3: Don't disable counter in armv8pmu_enable_event() Rob Herring (Arm)
2025-02-18 20:39 ` [PATCH v20 04/11] perf: arm_v7_pmu: Drop obvious comments for enabling/disabling counters and interrupts Rob Herring (Arm)
2025-02-18 20:40 ` [PATCH v20 05/11] perf: arm_v7_pmu: Don't disable counter in (armv7|krait_|scorpion_)pmu_enable_event() Rob Herring (Arm)
2025-02-18 20:40 ` [PATCH v20 06/11] perf: apple_m1: Don't disable counter in m1_pmu_enable_event() Rob Herring (Arm)
2025-02-18 20:40 ` Rob Herring (Arm) [this message]
2025-02-18 20:40 ` [PATCH v20 08/11] arm64/sysreg: Add BRBE registers and fields Rob Herring (Arm)
2025-02-18 20:40 ` [PATCH v20 09/11] arm64: Handle BRBE booting requirements Rob Herring (Arm)
2025-02-18 20:40 ` [PATCH v20 10/11] KVM: arm64: nvhe: Disable branch generation in nVHE guests Rob Herring (Arm)
2025-02-24 10:41 ` Leo Yan
2025-02-18 20:40 ` [PATCH v20 11/11] perf: arm_pmuv3: Add support for the Branch Record Buffer Extension (BRBE) Rob Herring (Arm)
2025-02-24 12:25 ` Leo Yan
2025-02-24 12:46 ` Rob Herring
2025-02-24 14:03 ` Leo Yan
2025-02-24 16:05 ` Mark Rutland
2025-02-24 18:03 ` Leo Yan
2025-02-25 1:31 ` Rob Herring
2025-02-25 12:38 ` Leo Yan
2025-02-25 15:35 ` Rob Herring
2025-02-25 19:46 ` Mark Rutland
2025-02-25 12:01 ` Mark Rutland
2025-02-25 17:48 ` Leo Yan
2025-02-25 19:04 ` Rob Herring
2025-02-25 19:58 ` Mark Rutland
2025-02-26 13:48 ` Leo Yan
2025-02-26 14:26 ` Rob Herring
2025-02-19 16:09 ` [PATCH v20 00/11] arm64/perf: Enable branch stack sampling James Clark
2025-03-01 7:05 ` Will Deacon
2025-03-03 16:44 ` Rob Herring
2025-03-04 11:25 ` Catalin Marinas
2025-03-04 16:25 ` Mark Rutland
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