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Message-ID: <86802c441001120047v5c303dfdh648ad8ebf2f538c1@mail.gmail.com> Date: Tue, 12 Jan 2010 00:47:03 -0800 From: Yinghai Lu <yinghai@...nel.org> To: Linus Torvalds <torvalds@...ux-foundation.org> Cc: Suresh Siddha <suresh.b.siddha@...el.com>, "ananth@...ibm.com" <ananth@...ibm.com>, Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>, "H. Peter Anvin" <hpa@...or.com>, Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org Subject: Re: [RFC PATCH 3/4] x86: using logical flat for amd cpu too. On Mon, Jan 11, 2010 at 7:16 PM, Linus Torvalds <torvalds@...ux-foundation.org> wrote: > > > On Mon, 11 Jan 2010, Yinghai Lu wrote: >> >> tested that amd support logical flat too when cpus num <= 8 and even >> bsp apic id > 8 >> >> so could remove vendor check... > > At least this one makes code simpler. > > What was the background for thinking that AMD didn't support the same APIC > addressing models? If there really is some issue external to the CPU's > themselves, whatever problem was attributed to AMD might be the same (or > similar) problem that Ananth had. not sure. i remembered that bios fix one apic dest apic id in ioapic register. before that that field is set to 0 always. YH -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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