[PATCH 3/6] 8xx: get rid of _PAGE_HWWRITE dependency in MMU.

Benjamin Herrenschmidt benh at kernel.crashing.org
Tue Oct 6 17:45:47 EST 2009

On Tue, 2009-10-06 at 08:15 +0200, Joakim Tjernlund wrote:

> Yes, I would too but TLB Miss knows nothing about load/store, protection etc.
> because DSISR isn't set. So I cannot see any other way than the TLB Error way.

Hrm... that MMU really sucks more than I thought :-(

I'll go read the manual and think about that a bit more.

> But I guess BookE knows if it is a load or store in TLB Miss?
> Then it can emulate changed bit I guess.

Yes, it knows.


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