[Dri-devel] more r128 debugs

[Ove K. <ov...@ar...>]

I've been trying to debug this @#%& r128 lockup for many days now, but
without getting anywhere... so now every cce_dispatch in the kernel module
has do_cce_idle() both at the beginning and at the end of the function,
and it still locks up, and I don't think this is fun. But maybe it'll be
useful for you to see what I have got now...

2nd last vertex buffer dispatched, just in case it's relevant:

Feb 27 22:33:36 acroyali kernel: [drm] dispatch_vertex: (0x5) context,
tex0, 
Feb 27 22:33:36 acroyali kernel: [drm] BEGIN_RING( 13 ) in
r128_emit_context
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x000b0720 ) at
0x3ffcc
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x1000c080 ) at
0x3ffcd
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x7acc34da ) at
0x3ffce
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00fe017a ) at
0x3ffcf
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x02dd03f9 ) at
0x3ffd0
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00301000 ) at
0x3ffd1
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00010080 ) at
0x3ffd2
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00007010 ) at
0x3ffd3
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x3f000312 ) at
0x3ffd4
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x07540600 ) at
0x3ffd5
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00000000 ) at
0x3ffd6
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0xffffffff ) at
0x3ffd7
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00ffffff ) at
0x3ffd8
Feb 27 22:33:36 acroyali kernel: [drm] ADVANCE_RING() tail=0x03ffd9
wr=0x03ffcc
Feb 27 22:33:36 acroyali kernel: [drm] BEGIN_RING( 18 ) in r128_emit_tex0
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x000d072c ) at
0x3ffd9
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x000f0080 ) at
0x3ffda
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x04181040 ) at
0x3ffdb
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00007477 ) at
0x3ffdc
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at
0x3ffdd
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at
0x3ffde
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at
0x3ffdf
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at
0x3ffe0
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at
0x3ffe1
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at
0x3ffe2
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at
0x3ffe3
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at
0x3ffe4
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at
0x3ffe5
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at
0x3ffe6
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at
0x3ffe7
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x0001074d ) at
0x3ffe8
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00ffffff ) at
0x3ffe9
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00000000 ) at
0x3ffea
Feb 27 22:33:36 acroyali kernel: [drm] ADVANCE_RING() tail=0x03ffeb
wr=0x03ffd9
Feb 27 22:33:36 acroyali kernel: [drm] BEGIN_RING( 5 ) in
r128_cce_dispatch_vertex
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0xc0032300 ) at
0x3ffeb
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0xe4102000 ) at
0x3ffec
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00000006 ) at
0x3ffed
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x000000c9 ) at
0x3ffee
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00060024 ) at
0x3ffef
Feb 27 22:33:36 acroyali kernel: [drm] ADVANCE_RING() tail=0x03fff0
wr=0x03ffeb
Feb 27 22:33:36 acroyali kernel: [drm] BEGIN_RING( 2 ) in
r128_cce_dispatch_vertex
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00000579 ) at
0x3fff0
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00001aea ) at
0x3fff1
Feb 27 22:33:36 acroyali kernel: [drm] ADVANCE_RING() tail=0x03fff2
wr=0x03fff0

Last vertex buffer dispatched before lockup (note that since cce_idle is
called on function entry, the ring is empty and engine idle at this
point):

Feb 27 22:33:36 acroyali kernel: [drm] dispatch_vertex: (0x5) context,
tex0, 
Feb 27 22:33:36 acroyali kernel: [drm] BEGIN_RING( 13 ) in
r128_emit_context
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x000b0720 ) at
0x3fff2
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x1000c080 ) at
0x3fff3
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x7acc34da ) at
0x3fff4
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00fe017a ) at
0x3fff5
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x02dd03f9 ) at
0x3fff6
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00301000 ) at
0x3fff7
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00010080 ) at
0x3fff8
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00007010 ) at
0x3fff9
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x3f000312 ) at
0x3fffa
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x07540600 ) at
0x3fffb
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00000000 ) at
0x3fffc
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0xffffffff ) at
0x3fffd
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00ffffff ) at
0x3fffe
Feb 27 22:33:36 acroyali kernel: [drm] ADVANCE_RING() tail=0x03ffff
wr=0x03fff2
Feb 27 22:33:36 acroyali kernel: [drm] BEGIN_RING( 18 ) in r128_emit_tex0
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x000d072c ) at
0x3ffff
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x000f0080 ) at 0x0
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x04181040 ) at 0x1
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00007477 ) at 0x2
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at 0x3
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at 0x4
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at 0x5
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at 0x6
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at 0x7
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at 0x8
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at 0x9
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at 0xa
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at 0xb
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at 0xc
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00793000 ) at 0xd
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x0001074d ) at 0xe
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00ffffff ) at 0xf
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00000000 ) at 0x10
Feb 27 22:33:36 acroyali kernel: [drm] ADVANCE_RING() tail=0x000011
wr=0x03ffff
Feb 27 22:33:36 acroyali kernel: [drm] BEGIN_RING( 5 ) in
r128_cce_dispatch_vertex
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0xc0032300 ) at 0x11
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0xe4102000 ) at 0x12
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00000006 ) at 0x13
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x000000c9 ) at 0x14
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00060024 ) at 0x15
Feb 27 22:33:36 acroyali kernel: [drm] ADVANCE_RING() tail=0x000016
wr=0x000011
Feb 27 22:33:36 acroyali kernel: [drm] BEGIN_RING( 2 ) in
r128_cce_dispatch_vertex
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00000579 ) at 0x16
Feb 27 22:33:36 acroyali kernel: [drm]    OUT_RING( 0x00001aeb ) at 0x17
Feb 27 22:33:36 acroyali kernel: [drm] ADVANCE_RING() tail=0x000018
wr=0x000016

Now, after the simple animation having worked for many seconds, suddenly
cce_idle no longer returns success.

Feb 27 22:33:36 acroyali kernel: [drm:r128_cce_dispatch_vertex] *ERROR*
engine lockup
Feb 27 22:33:36 acroyali kernel: [drm:r128_cce_dispatch_vertex] *ERROR*
ring tail=0x000018 head=0x000018 space=0x0fff68
Feb 27 22:33:36 acroyali kernel: [drm:r128_cce_dispatch_vertex] *ERROR*
ring size=0x100000 mask=0x03ffff

Feb 27 22:33:47 acroyali kernel: SysRq: SAK

Want an account on my machine or something, Gareth?
Or what else can I look for in here?