Messages in this thread | | | Date | Sat, 30 May 2009 12:31:11 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH 0/4] amd64_edac: misc fixes |
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On Sat, May 30, 2009 at 01:40:07AM -0700, Andrew Morton wrote: > On Sat, 30 May 2009 10:19:54 +0200 Borislav Petkov <petkovbb@googlemail.com> wrote: > > > Also, I've been thinking about how the old(er) > > toolchain problem can be addressed and one fairly doable thing would be > > if I'd query the gas version in the kernel Makefile and define popcnt > > dependent on it and for older assemblers simply slap in the opcode and > > fixate the operands in an inline assembly so that it works. > > We've done that before. BUG() is one case (for other reasons), I think. > > But if we have the code in there which uese the literal opcode, there's > no need to query gas or to add the conditional.
Right, we can do that too. Stay tuned.
> Is popcnt supported on all CPUs?
All >= Fam10h.
-- Regards/Gruss, Boris.
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