From 30d87bfacbee396646975a00959764a7c49510ec Mon Sep 17 00:00:00 2001 From: Jeremy Linton Date: Fri, 11 May 2018 18:57:59 -0500 Subject: arm64/acpi: Create arch specific cpu to acpi id helper Its helpful to be able to lookup the acpi_processor_id associated with a logical cpu. Provide an arm64 helper to do this. Tested-by: Ard Biesheuvel Tested-by: Vijaya Kumar K Tested-by: Xiongfeng Wang Tested-by: Tomasz Nowicki Acked-by: Ard Biesheuvel Acked-by: Sudeep Holla Signed-off-by: Jeremy Linton Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/acpi.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/arm64/include/asm/acpi.h') diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h index 32f465a80e4e..0db62a4cbce2 100644 --- a/arch/arm64/include/asm/acpi.h +++ b/arch/arm64/include/asm/acpi.h @@ -86,6 +86,10 @@ static inline bool acpi_has_cpu_in_madt(void) } struct acpi_madt_generic_interrupt *acpi_cpu_get_madt_gicc(int cpu); +static inline u32 get_acpi_id_for_cpu(unsigned int cpu) +{ + return acpi_cpu_get_madt_gicc(cpu)->uid; +} static inline void arch_fix_phys_package_id(int num, u32 slot) { } void __init acpi_init_cpus(void); -- cgit v1.2.3-59-g8ed1b