From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: "Kevin B. Hendricks" <kevin.hendricks@sympatico.ca>,
<yellowdog-devel@lists.yellowdoglinux.com>,
<linuxppc-dev@lists.linuxppc.org>
Subject: Re: some questions on new dual 1Gig G4's support?
Date: Sun, 3 Feb 2002 13:04:26 +0100 [thread overview]
Message-ID: <20020203120426.22252@smtp.wanadoo.fr> (raw)
In-Reply-To: <20020202201734.KLTB18463.tomts7-srv.bellnexxia.net@there>
>Thanks! I see you have hit the big time! The /. inerview article was
>great! Now I can say I actually know someone famous! ;-)
>
>One last question:
>
>The 7455 errata basically says to disable the L2 hardware prefetch engine
>(MSSCR0[L2PFE] = 0 when disabling the L1 data cache.
>
>It goes on to say that the L1 data cache may be disabled during cache
>flushing on some systems or be disabled upon startup.
>
>Do we disable L1 cache's during cache flushing? If so were should I be
>looking for this code to get the workaround in place?
I don't think we disable L1 except when changing L2CR value or when
going to sleep.
Ben.
** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-02-03 12:04 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-02 14:50 some questions on new dual 1Gig G4's support? Kevin B. Hendricks
2002-02-02 20:11 ` Benjamin Herrenschmidt
2002-02-02 20:21 ` Kevin B. Hendricks
2002-02-03 12:04 ` Benjamin Herrenschmidt [this message]
2002-02-03 19:02 ` Kevin B. Hendricks
2002-02-03 22:39 ` Timothy A. Seufert
2002-02-04 18:15 ` benh
2002-02-04 18:27 ` Kevin B. Hendricks
2002-02-05 13:23 ` benh
2002-02-04 17:57 ` Kevin B. Hendricks
2002-02-04 18:23 ` benh
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