From: "Stephen C. Tweedie" <sct@redhat.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>, dri-devel@lists.sourceforge.net
Cc: linux-kernel@vger.kernel.org, Stephen Tweedie <sct@redhat.com>,
mharris@redhat.com
Subject: Radeon lockup fix
Date: Thu, 13 Sep 2001 22:18:34 +0100 [thread overview]
Message-ID: <20010913221834.E29816@redhat.com> (raw)
Hi,
I've also been seeing the AMD-761 + radeon total lockup when X starts,
as described in
http://sourceforge.net/tracker/index.php?func=detail&aid=221904&group_id=387&atid=100387
The X server fixes from ATI seem to fix this when running without dri,
but in dri mode, I still see the lockups 75% of the time. However,
the fix described above and appended below appears to be a complete
cure for me so far.
I'd like the opinion of the DRI folks about whether this should be in
the mainline kernel DRM, or if this is just a workaround for a problem
that still needs fixed elsewhere, but it certainly appears to work
fine for me.
--Stephen
--- linux/drivers/char/drm/radeon_cp.c.~1~ Wed Sep 12 15:14:40 2001
+++ linux/drivers/char/drm/radeon_cp.c Wed Sep 12 15:16:00 2001
@@ -543,8 +543,7 @@
RADEON_SOFT_RESET_RE |
RADEON_SOFT_RESET_PP |
RADEON_SOFT_RESET_E2 |
- RADEON_SOFT_RESET_RB |
- RADEON_SOFT_RESET_HDP ) );
+ RADEON_SOFT_RESET_RB ) );
RADEON_READ( RADEON_RBBM_SOFT_RESET );
RADEON_WRITE( RADEON_RBBM_SOFT_RESET, ( rbbm_soft_reset &
~( RADEON_SOFT_RESET_CP |
@@ -553,8 +552,7 @@
RADEON_SOFT_RESET_RE |
RADEON_SOFT_RESET_PP |
RADEON_SOFT_RESET_E2 |
- RADEON_SOFT_RESET_RB |
- RADEON_SOFT_RESET_HDP ) ) );
+ RADEON_SOFT_RESET_RB ) ) );
RADEON_READ( RADEON_RBBM_SOFT_RESET );
next reply other threads:[~2001-09-13 21:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-13 21:18 Stephen C. Tweedie [this message]
2001-09-14 5:02 ` Radeon lockup fix Jeffrey W. Baker
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