On 2009-10-21, at 20:38, Marcel Moolenaar wrote:
The key property of this change is that the I-cache is made coherent
*after* writes have been done. Doing it in the PMAP layer when adding
or changing a mapping means that the I-cache is made coherent
*before*
any writes happen. The difference is key when the I-cache prefetches.
Marcel, does this new approach help with your problems on MV-78xxx
with SATA when executing binaries was failing with various signals
etc. (and the suspicions were this was due to some i-cache incoherency)?
Rafal
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