From: Dan Malek <dan@mvista.com>
To: David Gibson <david@gibson.dropbear.id.au>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: 4xx icache and tlb flushing
Date: Tue, 18 Sep 2001 15:15:10 -0400 [thread overview]
Message-ID: <3BA79D3E.E5BA495A@mvista.com> (raw)
In-Reply-To: 20010918143359.B817@zax
David Gibson wrote:
> First on icache flushing. I noticed that flush_icache_page() has been
> changed to a no-op, wheras it used to flush the whole icache on 4xx.
It is now done when we detect a PTE change that affects an executable
region.
> Now two questions on tlb flushing. First, 4xx uses a __tlbia() macro
> in local_flush_tlb_*(). Is there a reason we don't use the _tlbia()
> function already included in misc.S?
I dunno, avoids the function call? We keep swapping between macros
and functions. Whatever.
> ... Is this a bug, or am I missing something?
I thought I checked that in....maybe it's still hanging out in my
with a bunch of other random 4xx patches. I'll look again.
-- Dan
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2001-09-18 19:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-18 4:33 4xx icache and tlb flushing David Gibson
2001-09-18 19:15 ` Dan Malek [this message]
2001-09-19 2:14 ` David Gibson
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