[PATCH v2 01/15] x86/cpu: Move intel-family to arch-independent headers

Borislav Petkov bp at alien8.de
Tue Oct 5 06:03:55 AEDT 2021

On Tue, Aug 03, 2021 at 01:31:20PM +0200, Iwona Winiarska wrote:
> Baseboard management controllers (BMC) often run Linux but are usually
> implemented with non-X86 processors. They can use PECI to access package
> config space (PCS) registers on the host CPU and since some information,
> e.g. figuring out the core count, can be obtained using different
> registers on different CPU generations, they need to decode the family
> and model.
> Move the data from arch/x86/include/asm/intel-family.h into a new file
> include/linux/x86/intel-family.h so that it can be used by other
> architectures.
> Signed-off-by: Iwona Winiarska <iwona.winiarska at intel.com>
> Reviewed-by: Tony Luck <tony.luck at intel.com>
> Reviewed-by: Dan Williams <dan.j.williams at intel.com>
> ---
> To limit tree-wide changes and help people that were expecting
> intel-family defines in arch/x86 to find it more easily without going
> through git history, we're not removing the original header
> completely, we're keeping it as a "stub" that includes the new one.
> If there is a consensus that the tree-wide option is better,
> we can choose this approach.

Why can't the linux/ namespace header include the x86 one so that
nothing changes for arch/x86/?

And if it is really only a handful of families you need, you might just
as well copy them into the peci headers and slap a comment above it
saying where they come from and save yourself all that churn...



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