Patrick Georgi wrote: > Am Freitag 13 Februar 2009 14:44:20 schrieb Carl-Daniel Hailfinger: > >> I created a patch against a tree with your original patch applied. It >> should be able to handle all generations since the invention of CPUID >> just fine. Fam11h and later are handled as well. >> > Looks nice, and I tested it in SimNow after some trivial changes to make it > build. I think it's ready for integration now. > > > Regards, > Patrick > > What this patch does: > 1. Enable SSE (to get some more registers to play with) > 2. Determine CPUID, and stash it in an XMM register, and reference > value for comparison in another XMM register (mangled somewhat to > simplify inequality comparisons) > 3. Add a macro jmp_if_k8, which jumps if the CPU is K8 (using an SSE compare) > 4. Replace #if CAR_FAM10 sections with runtime checks using jmp_if_k8. > This is pretty mechanical work. The macro uses local labels (1: and 2:) to > prevent namespace issues > 5. At one time, CPU_ADDR_BITS is used to fill a register. This is replaced > with hardcoded values for both cases, and switched appropriately. > 6. Disable SSE > > Signed-off-by: Patrick Georgi <[email protected]>
Acked-by: Stefan Reinauer <[email protected]> -- coresystems GmbH • Brahmsstr. 16 • D-79104 Freiburg i. Br. Tel.: +49 761 7668825 • Fax: +49 761 7664613 Email: [email protected] • http://www.coresystems.de/ Registergericht: Amtsgericht Freiburg • HRB 7656 Geschäftsführer: Stefan Reinauer • Ust-IdNr.: DE245674866
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