Re: PPC upstream kernel ignored DABR bug
From: Arnd Bergmann <arnd@arndb.de>
Date: 2007-11-29 00:14:13
From: Arnd Bergmann <arnd@arndb.de>
Date: 2007-11-29 00:14:13
On Wednesday 28 November 2007 23:59:36 Geoff Levand wrote:
quoted
This sounds like a bug recently reported by Uli Weigand. BenH said he'd take a look, but it probably fell under the table. The problem found by Uli is that on certain processors (Cell/B.E. in his case), the DABRX register needs to be set in order for the DABR to take effect.Just as a note, the PS3's lv1_set_dabr(), which we used for ppc_md.set_dabr sets up both the DABRX and DABR registers.
Yes, I know. I tried it on the PS3 first and couldn't reproduce the bug he saw on the blade. Arnd <><