From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeremy Linton Subject: [PATCH v5 1/9] arm64/acpi: Create arch specific cpu to acpi id helper Date: Fri, 1 Dec 2017 16:23:22 -0600 Message-ID: <20171201222330.18863-2-jeremy.linton@arm.com> References: <20171201222330.18863-1-jeremy.linton@arm.com> Return-path: In-Reply-To: <20171201222330.18863-1-jeremy.linton@arm.com> Sender: linux-kernel-owner@vger.kernel.org To: linux-acpi@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, sudeep.holla@arm.com, hanjun.guo@linaro.org, lorenzo.pieralisi@arm.com, rjw@rjwysocki.net, will.deacon@arm.com, catalin.marinas@arm.com, gregkh@linuxfoundation.org, viresh.kumar@linaro.org, mark.rutland@arm.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, jhugo@codeaurora.org, wangxiongfeng2@huawei.com, Jonathan.Zhang@cavium.com, ahs3@redhat.com, Jayachandran.Nair@cavium.com, austinwc@codeaurora.org, lenb@kernel.org, Jeremy Linton List-Id: linux-acpi@vger.kernel.org Its helpful to be able to lookup the acpi_processor_id associated with a logical cpu. Provide an arm64 helper to do this. Signed-off-by: Jeremy Linton --- arch/arm64/include/asm/acpi.h | 4 ++++ 1 file changed, 4 insertions(+) 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); -- 2.13.5