On Jun 6, 2009, at 5:42 PM, Benjamin Herrenschmidt wrote:

On Sun, 2009-06-07 at 00:07 +0200, Wolfgang Denk wrote:
Dear David Jander,

In message <200903161652.09747.david.jan...@protonic.nl> you wrote:
Complete workaround for DTLB errata in e300c2/c3/c4 processors.

Due to the bug, the hardware-implemented LRU algorythm always goes to way 1 of the TLB. This fix implements the proposed software workaround in
form of a LRW table for chosing the TLB-way.

Signed-off-by: Kumar Gala <ga...@kernel.crashing.org>
Signed-off-by: David Jander <da...@protonic.nl>

What is the actual status of this patch?

Patchwork (http://patchwork.ozlabs.org/patch/24502/) says it's
"superseded" - but by what?

I can't see such code in mainline - what happened to it?

I can see the code in mainline ... but only in the -data- TLB miss
handler, not the instruction one...

Kumar ? Shouldn't we have the workaround in both ?

The errata was only for the d-side. The patch is in the mainline kernel.

- k
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