diff options
| author | James Morse <james.morse@arm.com> | 2021-07-05 11:14:11 +0100 |
|---|---|---|
| committer | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2023-08-29 15:30:12 +0100 |
| commit | e787b5720b2fb59a57d192bc3f5d337f9c60a447 (patch) | |
| tree | 74e5ea11f1a1dbd8d3c16c6c4847b96343e6a92e | |
| parent | e0b03e8eca149e05dd5cf707c40cb989cf74357d (diff) | |
arm64: acpi: Move get_cpu_for_acpi_id() to a header
ACPI identifies CPUs by UID. get_cpu_for_acpi_id() maps the ACPI UID
to the linux CPU number.
The helper to retrieve this mapping is only available in arm64's numa
code.
Move it to live next to get_acpi_id_for_cpu().
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | arch/arm64/include/asm/acpi.h | 11 | ||||
| -rw-r--r-- | arch/arm64/kernel/acpi_numa.c | 11 |
2 files changed, 11 insertions, 11 deletions
diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index bd68e1b7f29f..0d1da93a5bad 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h @@ -97,6 +97,17 @@ static inline u32 get_acpi_id_for_cpu(unsigned int cpu) return acpi_cpu_get_madt_gicc(cpu)->uid; } +static inline int get_cpu_for_acpi_id(u32 uid) +{ + int cpu; + + for (cpu = 0; cpu < nr_cpu_ids; cpu++) + if (uid == get_acpi_id_for_cpu(cpu)) + return cpu; + + return -EINVAL; +} + static inline void arch_fix_phys_package_id(int num, u32 slot) { } void __init acpi_init_cpus(void); int apei_claim_sea(struct pt_regs *regs); diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c index e51535a5f939..0c036a9a3c33 100644 --- a/arch/arm64/kernel/acpi_numa.c +++ b/arch/arm64/kernel/acpi_numa.c @@ -34,17 +34,6 @@ int __init acpi_numa_get_nid(unsigned int cpu) return acpi_early_node_map[cpu]; } -static inline int get_cpu_for_acpi_id(u32 uid) -{ - int cpu; - - for (cpu = 0; cpu < nr_cpu_ids; cpu++) - if (uid == get_acpi_id_for_cpu(cpu)) - return cpu; - - return -EINVAL; -} - static int __init acpi_parse_gicc_pxm(union acpi_subtable_headers *header, const unsigned long end) { |