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| author | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2024-05-29 16:34:34 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2024-06-28 20:38:28 +0300 |
| commit | 36b921637e900c77f5f9bd5b45db522124068a96 (patch) | |
| tree | 595964b32b544ee860bb1c7dcca6f5ac79489f06 /include/linux | |
| parent | cd9239660b8c0357a7338a33d40a429e48273e77 (diff) | |
| download | linux-36b921637e900c77f5f9bd5b45db522124068a96.tar.xz | |
ACPI: processor: Add acpi_get_processor_handle() helper
If CONFIG_ACPI_PROCESSOR provide a helper to retrieve the
acpi_handle for a given CPU allowing access to methods
in DSDT.
Tested-by: Miguel Luis <miguel.luis@oracle.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240529133446.28446-8-Jonathan.Cameron@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/acpi.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 28c3fb2bef0d..fd45bfab66b8 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -304,6 +304,8 @@ int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id, int acpi_unmap_cpu(int cpu); #endif /* CONFIG_ACPI_HOTPLUG_CPU */ +acpi_handle acpi_get_processor_handle(int cpu); + #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC int acpi_get_ioapic_id(acpi_handle handle, u32 gsi_base, u64 *phys_addr); #endif @@ -1076,6 +1078,11 @@ static inline bool acpi_sleep_state_supported(u8 sleep_state) return false; } +static inline acpi_handle acpi_get_processor_handle(int cpu) +{ + return NULL; +} + #endif /* !CONFIG_ACPI */ extern void arch_post_acpi_subsys_init(void); |