[PATCH 00/22] platform/x86/intel: Add ACPI PMT discovery support and enable NVL PMC telemetry

["David E. Box" <david.e.box@linux.intel.com>]

This series adds ACPI-based PMT discovery support and wires it into the
Intel PMC telemetry stack for Nova Lake S.

Today, PMT discovery flow is primarily PCI-oriented. Some platforms expose
PMT discovery via ACPI _DSD, and PMC telemetry needs to consume that path
for both standalone and companion-device cases. This series addresses that
in three logical steps:

    1. Prepare intel_vsec for ACPI-backed discovery
    2. Refactor PMT class handling so discovery source is
       abstracted (PCI or ACPI)
    3. Add/enable PMC consumers using ACPI discovery, including NVL
       SSRAM support

Patches 1–6 were previously posted here:
https://lore.kernel.org/all/20260303051953.1453372-1-david.e.box@linux.intel.com/

Series layout

    01-06: intel_vsec cleanup/generalization for ACPI-capable discovery
           plumbing. Previous changelog up to V7 included.
           Major patches:
           Patch 6 - adds ACPI support in VSEC driver

    07-12: PMT class refactor and ACPI discovery-source support
           Major patches:
           Patch 12 - adds ACPI support in PMT driver

    13-22: PMC driver integration
           Major patches:
           Patch 14 - adds new ACPI platform driver
           Patch 20 - adds ACPI discovery support in ssram driver
           Patch 22 - adds NVL IDs for SSRAM discovery

David E. Box (20):
  platform/x86/intel/vsec: Refactor base_addr handling
  platform/x86/intel/vsec: Make driver_data info const
  platform/x86/intel/vsec: Decouple add/link helpers from PCI
  platform/x86/intel/vsec: Switch exported helpers from pci_dev to
    device
  platform/x86/intel/vsec: Return real error codes from registration
    path
  platform/x86/intel/vsec: Plumb ACPI PMT discovery tables through vsec
  platform/x86/intel/pmt: Add pre/post decode hooks around header
    parsing
  platform/x86/intel/pmt/crashlog: Split init into pre-decode
  platform/x86/intel/pmt/telemetry: Move overlap check to post-decode
    hook
  platform/x86/intel/pmt: Move header decode into common helper
  platform/x86/intel/pmt: Pass discovery index instead of resource
  platform/x86/intel/pmt: Unify header fetch and add ACPI source
  platform/x86/intel/pmc: Add PMC SSRAM Kconfig description
  platform/x86/intel/pmc: Add ACPI PWRM telemetry driver for Nova Lake S
  platform/x86/intel/pmc/ssram: Rename probe and PCI ID table for
    consistency
  platform/x86/intel/pmc/ssram: Refactor DEVID/PWRMBASE extraction into
    helper
  platform/x86/intel/pmc/ssram: Add PCI platform data
  platform/x86/intel/pmc/ssram: Add ACPI discovery scaffolding
  platform/x86/intel/pmc/ssram: Make PMT registration optional
  platform/x86/intel/pmc: Add NVL PCI IDs for SSRAM telemetry discovery

Xi Pardee (2):
  platform/x86/intel/pmc/ssram: Use fixed-size static pmc array
  platform/x86/intel/pmc/ssram: Refactor memory barrier for reentrant
    probe

 drivers/gpu/drm/xe/xe_debugfs.c               |   2 +-
 drivers/gpu/drm/xe/xe_hwmon.c                 |   2 +-
 drivers/gpu/drm/xe/xe_vsec.c                  |   7 +-
 drivers/gpu/drm/xe/xe_vsec.h                  |   4 +-
 drivers/platform/x86/intel/pmc/Kconfig        |  25 ++
 drivers/platform/x86/intel/pmc/Makefile       |   2 +
 drivers/platform/x86/intel/pmc/core.c         |   4 +-
 drivers/platform/x86/intel/pmc/core.h         |  17 ++
 .../platform/x86/intel/pmc/pwrm_telemetry.c   | 227 ++++++++++++++++
 .../platform/x86/intel/pmc/ssram_telemetry.c  | 254 ++++++++++++++----
 drivers/platform/x86/intel/pmt/class.c        | 170 ++++++++++--
 drivers/platform/x86/intel/pmt/class.h        |  25 +-
 drivers/platform/x86/intel/pmt/crashlog.c     |  16 +-
 drivers/platform/x86/intel/pmt/discovery.c    |   4 +-
 drivers/platform/x86/intel/pmt/telemetry.c    |  45 +---
 drivers/platform/x86/intel/pmt/telemetry.h    |  12 +-
 drivers/platform/x86/intel/sdsi.c             |   5 +-
 drivers/platform/x86/intel/vsec.c             | 121 +++++----
 drivers/platform/x86/intel/vsec_tpmi.c        |   8 +-
 include/linux/intel_vsec.h                    |  39 ++-
 20 files changed, 784 insertions(+), 205 deletions(-)
 create mode 100644 drivers/platform/x86/intel/pmc/pwrm_telemetry.c


base-commit: 11439c4635edd669ae435eec308f4ab8a0804808
-- 
2.43.0