[parisc-linux] The problem on the PA8800 is all in the data-cache.

[James Bottomley]

On Mon, 2006-07-24 at 00:15 -0400, Thibaut VARENE wrote:
> On B180, 1MB cache addon is "transparent" and the kernel doesn't see
> it at all (/proc/cpuinfo doesn't even show it).
> 
> On pa8800, the kernel sees L2 (/proc/cpuinfo shows it) and computes
> the flush routines based on L2 size, so I really don't understand how
> it is transparent...

What Matthew means is that the L2 cache is PIPT ... you can't get
aliasing effects in a PIPT cache, so for the purposes of the problem it
must be ignorable, since we can only get aliasing effects in the L1
cache which is VIPT.

James