Messages in this thread | | | Date | Wed, 07 Jan 2015 17:49:25 +0800 | From | Hanjun Guo <> | Subject | Re: [PATCH v6 01/17] ACPI / processor: Convert apic_id to phys_id to make it arch agnostic |
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On 2015年01月07日 09:50, Rafael J. Wysocki wrote: > On Sunday, January 04, 2015 06:55:02 PM Hanjun Guo wrote: >> From: Hanjun Guo <hanjun.guo@linaro.com> >> >> apic_id in MADT table is the CPU hardware id which identify >> it self in the system for x86 and ia64, OSPM will use it for >> SMP init to map APIC ID to logical cpu number in the early >> boot, when the DSDT/SSDT (ACPI namespace) is scanned later, the >> ACPI processor driver is probed and the driver will use acpi_id >> in DSDT to get the apic_id, then map to the logical cpu number >> which is needed by the processor driver. >> >> Before ACPI 5.0, only x86 and ia64 were supported in ACPI spec, >> so apic_id is used both in arch code and ACPI core which is >> pretty fine. Since ACPI 5.0, ARM is supported by ACPI and >> APIC is not available on ARM, this will confuse people when >> apic_id is both used by x86 and ARM in one function. >> >> So convert apic_id to phys_id (which is the original meaning) >> in ACPI processor dirver to make it arch agnostic, but leave the >> arch dependent code unchanged, no functional change. >> >> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> > > I've queued up this one and [2/17] for 3.19-rc4 as I promised I'd push these > two for 3.19.
Great, thanks a lot. I thought you will queued them for 3.20 :)
Regards Hanjun
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