linux-kernel - Re: [GIT PULL] x86 fixes

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Message-ID: <55D2729D.8020201@nexus-software.ie>
Date:	Tue, 18 Aug 2015 00:47:41 +0100
From:	Bryan O'Donoghue <pure.logic@...us-software.ie>
To:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>
CC:	Ingo Molnar <mingo@...nel.org>, Juergen Gross <jgross@...e.com>,
	Andy Lutomirski <luto@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Brian Gerst <brgerst@...il.com>,
	Denys Vlasenko <dvlasenk@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [GIT PULL] x86 fixes

On 17/08/15 18:17, Linus Torvalds wrote:
> On Mon, Aug 17, 2015 at 9:58 AM, H. Peter Anvin <hpa@...or.com> wrote:
>> That is not true.  It *does* work, and I have tested it fairly recently.
>
> Ok, so it's not too badly broken. Good.
>
> Also, while it's been a long time since we needed FPU emulation on the
> i486sx, I don't recall the details of any of the (much more modern)
> IoT small cores. I *think* the base platforms are all at a Pentium
> level (ie not just FPU, but MMX), but maybe there's some reason to
> keep FP emulation alive for some platforms.
>
>                    Linus

Quark is pentium ISA - it has tsc, apic, fpu but, not mmx.

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