| From: |
| Nick Chan <towinchenmi-AT-gmail.com> |
| To: |
| Will Deacon <will-AT-kernel.org>, Mark Rutland <mark.rutland-AT-arm.com>, Rob Herring <robh-AT-kernel.org>, Krzysztof Kozlowski <krzk+dt-AT-kernel.org>, Conor Dooley <conor+dt-AT-kernel.org>, Catalin Marinas <catalin.marinas-AT-arm.com>, Janne Grunau <j-AT-jannau.net>, Alyssa Rosenzweig <alyssa-AT-rosenzweig.io>, Neal Gompa <neal-AT-gompa.dev>, Sven Peter <sven-AT-kernel.org> |
| Subject: |
| [PATCH RESEND v8 00/21] drivers/perf: apple_m1: Add Apple A7-A11, T2 SoC support |
| Date: |
| Tue, 14 Oct 2025 23:02:33 +0800 |
| Message-ID: |
| <20251014-apple-cpmu-v8-0-3f94d4a2a285@gmail.com> |
| Cc: |
| Marc Zyngier <maz-AT-kernel.org>, linux-arm-kernel-AT-lists.infradead.org, linux-perf-users-AT-vger.kernel.org, devicetree-AT-vger.kernel.org, asahi-AT-lists.linux.dev, linux-kernel-AT-vger.kernel.org, Nick Chan <towinchenmi-AT-gmail.com>, Krzysztof Kozlowski <krzysztof.kozlowski-AT-linaro.org>, Ivaylo Ivanov <ivo.ivanov.ivanov1-AT-gmail.com> |
| Archive-link: |
| Article |
This series adds support for the CPU PMU in the older Apple A7-A11, T2
SoCs. These PMUs may have a different event layout, less counters, or
deliver their interrupts via IRQ instead of a FIQ. Since some of those
older SoCs support 32-bit EL0, counting for 32-bit EL0 also need to
be enabled by the driver where applicable.
Patch 1 adds the DT bindings.
Patch 2-7 prepares the driver to allow adding support for those
older SoCs.
Patch 8-12 adds support for the older SoCs.
Patch 13-21 are the DT changes.
Signed-off-by: Nick Chan <towinchenmi@gmail.com>
---
Changes in v8:
- Rebased on top of v6.17-rc1
- Collect Ivaylo's Tested-by
- Drop #define PMCR1_COUNT_A64_EL3_0_7
- Reword reason to not initialize PMUv3 remap in EL1
- Link to v7: https://lore.kernel.org/r/20250510-apple-cpmu-v7-0-bd505c...
Changes in v7:
- Fix a W=1 compile warning in apple_pmu_get_event_idx() as appearently using GENMASK()
in a function prototype causes a warning in GCC.
- Link to v6: https://lore.kernel.org/r/20250407-apple-cpmu-v6-0-ae8c2f...
Changes in v6:
- Rebased on top of v6.15-rc1 (Conflict with FEAT_PMUv3 support for KVM on Apple Hardware)
- Add patch to skip initialization of PMUv3 remap in EL1 even though not strictly needed
- Include DT patches
- Link to v5: https://lore.kernel.org/r/20250228-apple-cpmu-v5-0-9e124c...
Changes in v5:
- Slightly change "drivers/perf: apple_m1: Add Apple A11 Support", to keep things in
chronological order.
- Link to v4: https://lore.kernel.org/r/20250214-apple-cpmu-v4-0-ffca0e...
Changes in v4:
- Support per-implementation event attr group
- Fix Apple A7 event attr groups
- Link to v3: https://lore.kernel.org/r/20250213-apple-cpmu-v3-0-be7f8a...
Changes in v3:
- Configure PMC8 and PMC9 for 32-bit EL0
- Remove redundant _common suffix from shared functions
- Link to v2: https://lore.kernel.org/r/20250213-apple-cpmu-v2-0-87b361...
Changes in v2:
- Remove unused flags parameter from apple_pmu_init_common()
- Link to v1: https://lore.kernel.org/r/20250212-apple-cpmu-v1-0-f8c7f2...
---
Nick Chan (21):
dt-bindings: arm: pmu: Add Apple A7-A11 SoC CPU PMU compatibles
drivers/perf: apple_m1: Only init PMUv3 remap when EL2 is available
drivers/perf: apple_m1: Support per-implementation event tables
drivers/perf: apple_m1: Support a per-implementation number of counters
drivers/perf: apple_m1: Support configuring counters for 32-bit EL0
drivers/perf: apple_m1: Support per-implementation PMU startup
drivers/perf: apple_m1: Support per-implementation event attr group
drivers/perf: apple_m1: Add Apple A7 support
drivers/perf: apple_m1: Add Apple A8/A8X support
drivers/perf: apple_m1: Add A9/A9X support
drivers/perf: apple_m1: Add Apple A10/A10X/T2 Support
drivers/perf: apple_m1: Add Apple A11 Support
arm64: dts: apple: s5l8960x: Add CPU PMU nodes
arm64: dts: apple: t7000: Add CPU PMU nodes
arm64: dts: apple: t7001: Add CPU PMU nodes
arm64: dts: apple: s800-0-3: Add CPU PMU nodes
arm64: dts: apple: s8001: Add CPU PMU nodes
arm64: dts: apple: t8010: Add CPU PMU nodes
arm64: dts: apple: t8011: Add CPU PMU nodes
arm64: dts: apple: t8012: Add CPU PMU nodes
arm64: dts: apple: t8015: Add CPU PMU nodes
Documentation/devicetree/bindings/arm/pmu.yaml | 6 +
arch/arm64/boot/dts/apple/s5l8960x.dtsi | 8 +
arch/arm64/boot/dts/apple/s800-0-3.dtsi | 8 +
arch/arm64/boot/dts/apple/s8001.dtsi | 8 +
arch/arm64/boot/dts/apple/t7000.dtsi | 8 +
arch/arm64/boot/dts/apple/t7001.dtsi | 9 +
arch/arm64/boot/dts/apple/t8010.dtsi | 8 +
arch/arm64/boot/dts/apple/t8011.dtsi | 9 +
arch/arm64/boot/dts/apple/t8012.dtsi | 8 +
arch/arm64/boot/dts/apple/t8015.dtsi | 24 +
arch/arm64/include/asm/apple_m1_pmu.h | 2 +
drivers/perf/apple_m1_cpu_pmu.c | 807 +++++++++++++++++++++++--
12 files changed, 870 insertions(+), 35 deletions(-)
---
base-commit: 8f5ae30d69d7543eee0d70083daf4de8fe15d585
change-id: 20250211-apple-cpmu-5a5a3da39483
Best regards,
--
Nick Chan <towinchenmi@gmail.com>
