From: Bob Breuer <breuerr@mc.net>
To: sparclinux@vger.kernel.org
Subject: Re: [1/3] fix HyperSPARC DVMA
Date: Tue, 21 Dec 2004 05:55:35 +0000 [thread overview]
Message-ID: <41C7BAD7.4000301@mc.net> (raw)
In-Reply-To: <20041221042037.GY771@holomorphy.com>
William Lee Irwin III wrote:
> DVMA is having aliasing problems.
Here's an updated description for the patch:
HyperSPARC was hit by 2 problems: 1) The iotlb entries must be flushed
to ram and 2) to maintain cache coherency on HyperSPARC the page color
of a cacheable DVMA address and its physical address must match.
This patch adds cache flushes of iotlb changes for all non-viking cpus
and optional page coloring of the ranges returned by bit_map_get_string,
with the page coloring only being used on HyperSPARCs for now.
Bob
next prev parent reply other threads:[~2004-12-21 5:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-21 4:20 [1/3] fix HyperSPARC DVMA William Lee Irwin III
2004-12-21 5:55 ` Bob Breuer [this message]
2004-12-21 6:34 ` William Lee Irwin III
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