Following with the cpu selection changes, setting the flags controlled
by the various CPU_X86_xxxx can be a real mess.
But, I have ralized that those CPU_X86 flags can be logically split in
two groups: features (TSC,MMX,3DNOW) and bugfixes (PPRO_FENCE) (or perhaps
more, it is just a first thought...).
So the algorithm can be easy (i think..)
- Enable all feature flags (say, MMX and 3DNOW)
- Disable all bugfix flags (FENCE)
- For each CPU
if it does not have the feature, kill it
(if VENDOR_INTEL set 3DNOW=n)
if this-cpu-kernel could run on buggy-cpu, enable fix
(if GENERIC_586 set FENCE=y)
-- J.A. Magallon # Let the source be with you... mailto:email@example.com Mandrake Linux release 8.3 (Cooker) for i586 Linux werewolf 2.4.19-pre9-jam1 #1 SMP lun jun 3 19:59:12 CEST 2002 i686 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to firstname.lastname@example.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/