Re: x86, ARM, PARISC, PPC, MIPS and Sparc folks please run this

From: Russell King
Date: Fri Aug 29 2003 - 06:20:23 EST


On Fri, Aug 29, 2003 at 01:08:51PM +0200, Andi Kleen wrote:
> Jamie Lokier <jamie@xxxxxxxxxxxxx> writes:
> > data cache is 64k. (The explanation is easy: virtually indexed,
> > physically tagged cache moves data among cache lines, possibly via L2).
>
> On x86 L2 is usually physically tagged.
>
> Mostly only ARM,MIPS et.al. have virtually tagged L2.

Correction: ARM L1 is mostly VIVT. L2 cache isn't mandated by the
architecture, and therefore generally doesn't exist.

--
Russell King (rmk@xxxxxxxxxxxxxxxx) The developer of ARM Linux
http://www.arm.linux.org.uk/personal/aboutme.html

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