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ACPI: Centralize acpi_get_cpu_uid() declaration in include/linux/acpi.h

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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>
This commit is contained in:
Chengwen Feng
2026-04-01 16:16:37 +08:00
committed by Rafael J. Wysocki
parent 3cfe889f89
commit f652d0a4e1
5 changed files with 11 additions and 5 deletions
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1
arch/arm64/include/asm/acpi.h
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@@ -118,7 +118,6 @@ static inline u32 get_acpi_id_for_cpu(unsigned int cpu)
{
return acpi_cpu_get_madt_gicc(cpu)->uid;
}
int acpi_get_cpu_uid(unsigned int cpu, u32 *uid);
int get_cpu_for_acpi_id(u32 uid);
static inline void arch_fix_phys_package_id(int num, u32 slot) { }

1
arch/loongarch/include/asm/acpi.h
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@@ -44,7 +44,6 @@ static inline u32 get_acpi_id_for_cpu(unsigned int cpu)
{
return acpi_core_pic[cpu_logical_map(cpu)].processor_id;
}
int acpi_get_cpu_uid(unsigned int cpu, u32 *uid);
#endif /* !CONFIG_ACPI */

1
arch/riscv/include/asm/acpi.h
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@@ -65,7 +65,6 @@ static inline u32 get_acpi_id_for_cpu(int cpu)
{
return acpi_cpu_get_madt_rintc(cpu)->uid;
}
int acpi_get_cpu_uid(unsigned int cpu, u32 *uid);
int acpi_get_riscv_isa(struct acpi_table_header *table,
unsigned int cpu, const char **isa);

2
arch/x86/include/asm/acpi.h
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@@ -157,8 +157,6 @@ static inline bool acpi_has_cpu_in_madt(void)
return !!acpi_lapic;
}
int acpi_get_cpu_uid(unsigned int cpu, u32 *uid);
#define ACPI_HAVE_ARCH_SET_ROOT_POINTER
static __always_inline void acpi_arch_set_root_pointer(u64 addr)
{

11
include/linux/acpi.h
View File

@@ -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