Re: [Linux-ia64] Q: TLB flush under SMP

David Mosberger
2000-02-06T00:13:32Z

>>>>> On Sun, 06 Feb 2000 00:38:21 +0100, Manfred Spraul <manfreds@colorfullife.com> said:

Manfred> Is the first snapshot supposed to run on SMP
Manfred> hardware/simulator?

SMP support is under development. It works somewhat, but isn't
stable. Personally, I don't care for SMP very much until I have an
SMP system myself... ;-)

Manfred> On ia64, flush_tlb_range() does nothing if the target mm is
Manfred> not the active mm on the current processor, but what if
Manfred> that mm is active on another cpu?

I don't think everything has been updated for SMP support yet. This
certainly does look suspect, though.

Manfred> And it seems that the ia64 supports inter processor tlb
Manfred> flushes with special instructions [ptc.g], is the
Manfred> documentation publicly available?

Not just yet, but it will be available very soon.

--david