RE: Use of ACPI_FLUSH_CPU_CACHE()

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Yes, we came to the same conclusion


>-----Original Message-----
>From: linux-acpi-owner@xxxxxxxxxxxxxxx [mailto:linux-acpi-
>owner@xxxxxxxxxxxxxxx] On Behalf Of Len Brown
>Sent: Friday, December 19, 2008 2:29 AM
>To: Moore, Robert
>Cc: linux-acpi@xxxxxxxxxxxxxxx
>Subject: Re: Use of ACPI_FLUSH_CPU_CACHE()
>
>> I noticed that Linux does not define anything for this macro (in
>aclinux.h)
>>
>> #define ACPI_FLUSH_CPU_CACHE()
>
>Confusing?  Yes.
>A bug?  No.
>
>aclinux.h is like like this:
>
>#ifdef __KERNEL__
>#else                           /* !__KERNEL__ */
>#define ACPI_FLUSH_CPU_CACHE()
>#endif                          /* __KERNEL__ */
>
>ie. that dummy definition is only used in user-mode simulation on Linux.
>
>The real one is in arch/x86/include/asm/acpi.h:
>
>#define ACPI_FLUSH_CPU_CACHE()  wbinvd()
>
>cheers,
>Len Brown, Intel Open Source Technology Center
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