From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Mon, 4 Jun 2012 10:00:31 +0000 (+0200)
Subject: nouveau: Fix alignment requirements on src and dst addresses
X-Git-Tag: v3.2.25~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=86fccf3e1ef30d1970dbd01ce69208ed1b334a8e;p=pandora-kernel.git

nouveau: Fix alignment requirements on src and dst addresses

commit ce806a30470bcd846d148bf39d46de3ad7748228 upstream.

Linear copy works by adding the offset to the buffer address,
which may end up not being 16-byte aligned.

Some tests I've written for prime_pcopy show that the engine
allows this correctly, so the restriction on lowest 4 bits of
address can be lifted safely.

The comments added were by envyas, I think because I used
a newer version.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
[bwh: Backported to 3.2: no # prefixes in nva3_copy.fuc]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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