* Radeon lockup fix
@ 2001-09-13 21:18 Stephen C. Tweedie
2001-09-14 5:02 ` Jeffrey W. Baker
0 siblings, 1 reply; 2+ messages in thread
From: Stephen C. Tweedie @ 2001-09-13 21:18 UTC (permalink / raw)
To: Alan Cox, dri-devel; +Cc: linux-kernel, Stephen Tweedie, mharris
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 );
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Radeon lockup fix
2001-09-13 21:18 Radeon lockup fix Stephen C. Tweedie
@ 2001-09-14 5:02 ` Jeffrey W. Baker
0 siblings, 0 replies; 2+ messages in thread
From: Jeffrey W. Baker @ 2001-09-14 5:02 UTC (permalink / raw)
To: Stephen C. Tweedie; +Cc: Alan Cox, dri-devel, linux-kernel, mharris
On Thu, 13 Sep 2001, Stephen C. Tweedie wrote:
> 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.
This patch also works fine for my All-in-Wonder Radeon on an AMD 760
mainboard. Tested with the DRI trunk.
-jwb
^ permalink raw reply [flat|nested] 2+ messages in thread
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