linux-kernel - [RFC V2 0/3] arm_pmu: acpi: variant support and QCOM Falkor extensions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:   Thu,  7 Jun 2018 09:56:45 -0400
From:   Agustin Vega-Frias <agustinv@...eaurora.org>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Will Deacon <will.deacon@....com>,
        Mark Rutland <mark.rutland@....com>,
        Jeremy Linton <jeremy.linton@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Marc Zyngier <marc.zyngier@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>
Cc:     timur@...eaurora.org, agustinv@...eaurora.org
Subject: [RFC V2 0/3] arm_pmu: acpi: variant support and QCOM Falkor extensions

This series is a complete re-design of V1 of the QCOM Falkor extensions [1],
it introduces a probe table based on the HID of a device nested under the CPU
device to allow variant detection and arm_pmu customization.

The first patch adds an additional section at the end of each ACPI probe table.
This allows probe tables to be sentinel-delimited and better accommodate some
APIs that require such tables.

The second patch adds the PMUv3 ACPI probe table and plumbing to allow drivers
to plug into the ACPI PMUv3 probe sequence.

The third patch adds the QCOM Falkor extensions using the new probe table.

If this found to be a reasonable extension approach other patches will be
added to the series to build on the base QCOM extensions.

[1] https://lkml.org/lkml/2017/3/1/540

Changes since V1:
- Redesign as a separate module by adding variant detection support.

Agustin Vega-Frias (3):
  ACPI: add support for sentinel-delimited probe tables
  arm_pmu: acpi: add support for CPU PMU variant detection
  perf: qcom: Add Falkor CPU PMU IMPLEMENTATION DEFINED event support

 drivers/perf/Makefile             |   2 +-
 drivers/perf/arm_pmu_acpi.c       |  27 ++++
 drivers/perf/qcom_arm_pmu.c       | 310 ++++++++++++++++++++++++++++++++++++++
 include/asm-generic/vmlinux.lds.h |   4 +-
 include/linux/acpi.h              |  11 ++
 include/linux/perf/arm_pmu.h      |   1 +
 6 files changed, 353 insertions(+), 2 deletions(-)
 create mode 100644 drivers/perf/qcom_arm_pmu.c

--
Qualcomm Datacenter Technologies, Inc. on behalf of the Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.