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Date: Thu, 24 May 2007 17:04:13 -0700 From: "H. Peter Anvin" <hpa@...or.com> To: "Pallipadi, Venkatesh" <venkatesh.pallipadi@...el.com> CC: Andi Kleen <ak@...e.de>, Dave Jones <davej@...hat.com>, Andrew Morton <akpm@...ux-foundation.org>, "Brown, Len" <len.brown@...el.com>, linux-kernel <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] Display Intel Dynamic Acceleration feature in /proc/cpuinfo Pallipadi, Venkatesh wrote: > The way new Intel features are being exposed in CPUID is kind of > changing. Changing is a VERY BAD THING when it comes to something like CPUID. > Now we have different CPUID leafs for different kind of features with > each of them growing much slowly. > I mean, there is > monitor-mwait related features in CPUID 5 > powermanagement features in CPUID 6 EAX, ECX > Perfmon features in CPUID 10 Again, this is bad. > This does not fit well with the way we use the feature words in Linux. No, it doesn't... nor for anyone else who wants a compact representation of this kind of information. If they grow slowly from the bottom, I guess we could simply allocate space in the vector byte by byte instead. Either way, it means more work whenever anything has to change. -hpa - 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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