Re: [PATCH][2.4] generic support for systems with more than 8 CP Us (2/2)

[William Lee Irwin III <wli@holomorphy.com>]

At some point in the past, I wrote:
> >>IIRC NUMA-Q can be dynamically detected at boot by means of an MP OEM
> >>table's presence, in particular if there's a matching string in the 8B
> >>OEM record in the OEM table, with a value of "IBM NUMA" IIRC. This is
> >>probably a line or two's worth of change to mpparse.c and declaring a
> >>variable for clustered_apic_mode. If it were difficult to detect, I
> >>wouldn't have suggested implementing it (though do so at your leisure).
> >>=)

On Sun, Dec 22, 2002 at 01:01:54PM -0800, Martin J. Bligh wrote:
> I don't think you need the OEM table to detect this, current patches do:
> 
> +static inline void mps_oem_check(struct mp_config_table *mpc, char *oem,
> +               char *productid)
> +{
> +       if (strncmp(oem, "IBM NUMA", 8))
> +               printk("Warning!  May not be a NUMA-Q system!\n");

Well, this is precisely what I meant by checking the OEM ID. It appears
to already be implemented in at least one set of patches, then. =)

Cheers,
Bill