diff mbox series

[v4,3/9] arm64/acpi: Create arch specific cpu to acpi id helper

Message ID 20171109210311.25655-4-jeremy.linton@arm.com
State Superseded
Headers show
Series [v4,1/9] ACPICA: Add additional PPTT flags for cache properties | expand

Commit Message

Jeremy Linton Nov. 9, 2017, 9:03 p.m. UTC
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 <jeremy.linton@arm.com>

---
 arch/arm64/include/asm/acpi.h | 4 ++++
 1 file changed, 4 insertions(+)

-- 
2.13.5

Comments

Jeremy Linton Nov. 20, 2017, 5:09 p.m. UTC | #1
Hi,

On 11/20/2017 11:06 AM, Sudeep Holla wrote:
> On Thu, Nov 09, 2017 at 03:03:05PM -0600, Jeremy Linton wrote:

>> 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 <jeremy.linton@arm.com>

>> ---

>>   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 59cca1d6ec54..408e7989d3a2 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;

>> +}

> 

> If I followed the series correctly, this function is used in 2/9 already.

> So this needs to be moved down in the series to avoid build failure during

> bisection.


I don't believe there is a bisection failure here because the code using 
this routine is not yet being compiled until the 4/9.
diff mbox series

Patch

diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
index 59cca1d6ec54..408e7989d3a2 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);