[PATCH v4 0/2] Fix get cpu steer-tag fail on ARM64 platform

[Chengwen Feng]

This patchset addresses the issue where retrieving the CPU steer-tag
fails on ARM64 platforms. The first commit is a pure renaming of the
ACPI CPU ID retrieval interface (no functional changes), which serves
as preparation for the second commit that implements the core fix for
the steer-tag retrieval logic.

---
Changes in v4:
- Split the rename into a separate commit.

Changes in v3:
- Rename existing get_acpi_id_for_cpu() to acpi_get_cpu_acpi_id() other
  than add one new API.

Changes in v2:
- Add ECN _DSM reference doc name and its URL.
- Separate implement acpi_get_cpu_acpi_id() in each arch which supports
  ACPI.
- Refine commit-log.

Chengwen Feng (2):
  ACPI: Rename get_acpi_id_for_cpu() to acpi_get_cpu_acpi_id() on
    non-x86
  PCI/TPH: Fix get cpu steer-tag fail on ARM64 platform

 Documentation/PCI/tph.rst          |  4 ++--
 arch/arm64/include/asm/acpi.h      |  4 ++--
 arch/loongarch/include/asm/acpi.h  |  2 +-
 arch/riscv/include/asm/acpi.h      |  2 +-
 arch/riscv/kernel/acpi_numa.c      |  2 +-
 arch/x86/include/asm/acpi.h        |  2 ++
 arch/x86/kernel/cpu/common.c       |  8 ++++++++
 drivers/acpi/pptt.c                | 16 ++++++++--------
 drivers/acpi/riscv/rhct.c          |  2 +-
 drivers/pci/tph.c                  | 11 ++++++-----
 drivers/perf/arm_cspmu/arm_cspmu.c |  2 +-
 include/linux/pci-tph.h            |  4 ++--
 12 files changed, 35 insertions(+), 24 deletions(-)

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2.17.1