[PATCH V3 0/4] coresight: trbe: Enable ACPI based devices

From: Anshuman Khandual
Date: Thu Aug 03 2023 - 01:57:12 EST

This series enables detection of ACPI based TRBE devices via a stand alone
purpose built representative platform device. But as a pre-requisite this
changes coresight_platform_data structure assignment for the TRBE device.

This series is based on v6.5-rc4 kernel, is also dependent on the following
EDK2 changes posted earlier by Sami.


Changes in V3:

- Changed ARMV8_TRBE_PDEV_NAME from "arm-trbe-acpi" into "arm,trbe"
- Dropped local variable 'matched'
- Replaced 'matched' with 'valid gsi' as being already matched once
- Moved find_acpi_cpu_topology_hetero_id() outside conditional check

Changes in V2:


- Refactored arm_spe_acpi_register_device() in a separate patch
- Renamed trbe_acpi_resources as trbe_resources
- Renamed trbe_acpi_dev as trbe_dev

Changes in V1:


Cc: Sami Mujawar <sami.mujawar@xxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Suzuki K Poulose <suzuki.poulose@xxxxxxx>
Cc: Mike Leach <mike.leach@xxxxxxxxxx>
Cc: Leo Yan <leo.yan@xxxxxxxxxx>
Cc: Alexander Shishkin <alexander.shishkin@xxxxxxxxxxxxxxx>
Cc: James Clark <james.clark@xxxxxxx>
Cc: coresight@xxxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx

Anshuman Khandual (4):
arm_pmu: acpi: Refactor arm_spe_acpi_register_device()
arm_pmu: acpi: Add a representative platform device for TRBE
coresight: trbe: Add a representative coresight_platform_data for TRBE
coresight: trbe: Enable ACPI based TRBE devices

arch/arm64/include/asm/acpi.h | 3 +
drivers/hwtracing/coresight/coresight-trbe.c | 15 +-
drivers/hwtracing/coresight/coresight-trbe.h | 1 +
drivers/perf/arm_pmu_acpi.c | 142 +++++++++++++------
include/linux/perf/arm_pmu.h | 1 +
5 files changed, 119 insertions(+), 43 deletions(-)