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| author | Chengwen Feng <fengchengwen@huawei.com> | 2026-04-01 11:16:37 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2026-04-06 17:55:16 +0300 |
| commit | f652d0a4e13c5f5416da15ba791b99c5d1ac9b18 (patch) | |
| tree | 4d12b409211d73d640a2c89fa4488ae373592cac /include/linux | |
| parent | 3cfe889f8965ded727f3de38ee941b44978e1d9b (diff) | |
| download | linux-f652d0a4e13c5f5416da15ba791b99c5d1ac9b18.tar.xz | |
ACPI: Centralize acpi_get_cpu_uid() declaration in include/linux/acpi.h
Centralize acpi_get_cpu_uid() in include/linux/acpi.h (global scope) and
remove arch-specific declarations from arm64/loongarch/riscv/x86
asm/acpi.h. This unifies the interface across architectures and
simplifies maintenance by eliminating duplicate prototypes.
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Link: https://patch.msgid.link/20260401081640.26875-6-fengchengwen@huawei.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/acpi.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 4d2f0bed7a06..74a73f0e5944 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -324,6 +324,17 @@ int acpi_unmap_cpu(int cpu); acpi_handle acpi_get_processor_handle(int cpu); +/** + * acpi_get_cpu_uid() - Get ACPI Processor UID of from MADT table + * @cpu: Logical CPU number (0-based) + * @uid: Pointer to store ACPI Processor UID + * + * Return: 0 on success (ACPI Processor ID stored in *uid); + * -EINVAL if CPU number is invalid or out of range; + * -ENODEV if ACPI Processor UID for the CPU is not found. + */ +int acpi_get_cpu_uid(unsigned int cpu, u32 *uid); + #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); #endif |