svn commit: r221842 - projects/largeSMP/sys/sparc64/sparc64

[Attilio Rao]

2011/5/15 Marius Strobl <marius at alchemy.franken.de>:
> On Fri, May 13, 2011 at 05:28:59PM +0200, Attilio Rao wrote:
>> 2011/5/13 Marius Strobl <marius at freebsd.org>:
>> > Author: marius
>> > Date: Fri May 13 15:21:31 2011
>> > New Revision: 221842
>> > URL: http://svn.freebsd.org/changeset/base/221842
>> >
>> > Log:
>> > ??When setting up pc_other_cpus for APs based on pc_allcpu clear pc_cpuid
>> > ??in the former rather than the latter.
>> > ??This gets this branch working on at least Jalapeno-class CPUs.
>> >
>> > Modified:
>> > ??projects/largeSMP/sys/sparc64/sparc64/mp_machdep.c
>> >
>> > Modified: projects/largeSMP/sys/sparc64/sparc64/mp_machdep.c
>> > ==============================================================================
>> > --- projects/largeSMP/sys/sparc64/sparc64/mp_machdep.c ??Fri May 13 15:20:57 2011 ?? ?? ?? ??(r221841)
>> > +++ projects/largeSMP/sys/sparc64/sparc64/mp_machdep.c ??Fri May 13 15:21:31 2011 ?? ?? ?? ??(r221842)
>> > @@ -470,7 +470,7 @@ cpu_mp_bootstrap(struct pcpu *pc)
>> > ?? ?? ?? ??smp_cpus++;
>> > ?? ?? ?? ??KASSERT(curthread != NULL, ("%s: curthread", __func__));
>> > ?? ?? ?? ??ocpus = all_cpus;
>> > - ?? ?? ?? CPU_CLR(curcpu, &all_cpus);
>> > + ?? ?? ?? CPU_CLR(curcpu, &ocpus);
>> > ?? ?? ?? ??PCPU_SET(other_cpus, ocpus);
>> > ?? ?? ?? ??printf("SMP: AP CPU #%d Launched!\n", curcpu);
>> >
>> >
>>
>> How idiot can I be?
>> I watched that path like 10 times yesterday...
>>
>
> FYI, as of r221932 this branch now works MP on all three classes of
> Cheetah, Jalapeno and Spitfire CPUs. While working on this I noticed
> that there's a bit of room for improvement in the sparc64 IPI code,
> which I'll commit once this branch has been merged into head. Then
> I'll also add support for more than 32 CPUs in the MD part, both
> of which really are orthogonal to the cpuset_t conversion.

Thanks a lot for testing.

You may be interested to know (as you are not at BSDCan) che this
morning we booted a 128 CPUs amd machines with 8 domains level NUMA.

Thanks,
Attilio


-- 
Peace can only be achieved by understanding - A. Einstein