[Bug,63599,r600] SUMO2 GPU lockup CP stall (kernel 3.2.47, 3.4, 3.8, 3.9, 3.10)

Commit Message

[e-mail] Dec. 21, 2013, 12:06 a.m. UTC

https://bugs.freedesktop.org/show_bug.cgi?id=63599

--- Comment #30 from Paul Wolneykien <[e-mail]> ---
(In reply to comment #13)
> Try comparing the following registers between fglrx and radeon:
> 
> ...
> 
> You can use radeonreg (as root):
> ./radeonreg regmatch 0x98FC
> 

Here is the console mode comparison (radeon installs the framebuffer console,
though):

$ diff -u fglrx-console.data radeon-console.data 

> See if changing any of them to what fglrx programs before starting X with
> tiling disabled.

  I've set each register values from fglrx-console.data and call xinit. Lockup
again, nothing changes.

Patch

--- fglrx-console.data  2013-12-21 01:38:37.952290647 +0400
+++ radeon-console.data 2013-12-21 01:42:45.844348784 +0400
@@ -1,23 +1,23 @@ 
 0x98FC 0x00000000 (0)
-0x98F8 0x00000000 (0)
+0x98F8 0x02010002 (33619970)
 0x8950 0xfffcf001 (-200703)
 0x98F4 0x00fe0001 (16646145)
 0x3F88 0x00fe0001 (16646145)
 0x9B7C 0x00000000 (0)
-0x3F90 0xffff0000 (-65536)
-0x9148 0xffff0000 (-65536)
+0x3F90 0x00000000 (0)
+0x9148 0x00000000 (0)
 0x3F94 0x00000000 (0)
 0x914C 0x00000000 (0)
 0x8954 0x00000000 (0)
 0x2004 0x00000210 (528)
 0x2008 0x00fac688 (16434824)
 0x2768 0x00007000 (28672)
-0x8B24 0x00000000 (0)
-0xA008 0x00030000 (196608)
-0xA020 0x00158011 (1409041)
+0x8B24 0x00ff0fff (16715775)
+0xA008 0x00010000 (65536)
+0xA020 0x00158009 (1409033)
 0xA02C 0x0000001b (27)
 0x9100 0x00000000 (0)
-0x913C 0x01000000 (16777216)
-0x960c 0x76543210 (1985229328)
+0x913C 0x00000004 (4)
+0x960c 0x54763210 (1417032208)
 0x9610 0x0000ba98 (47768)
-0x88C4 0x00000000 (0)
+0x88C4 0x000000c1 (193)