[Bug 26061] New: rv280 in KMS mode triggers "Forbidden register 0x22D0"

[bugzilla-daemon@freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=26061

           Summary: rv280 in KMS mode triggers "Forbidden register 0x22D0"
           Product: Mesa
           Version: unspecified
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/r200
        AssignedTo: dri-devel@lists.sourceforge.net
        ReportedBy: randrik@mail.ru


Hello.

After some time  i found agpmode 1x working in KMS mode so I started to test my
agp radeon again (in fallback PCI mode it lock up my machine after some 3d
activity)

hw is 

RV280 5964

01:00.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon 9200 SE]
(rev 01) (prog-if 00 [VGA controller])
        Subsystem: Hightech Information System Ltd. Excalibur 9200SE VIVO 128M
        Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16
        Memory at d0000000 (32-bit, prefetchable) [size=128M]
        I/O ports at c800 [size=256]
        Memory at dfef0000 (32-bit, non-prefetchable) [size=64K]
        Expansion ROM at dfec0000 [disabled] [size=128K]
        Capabilities: [58] AGP version 2.0
        Capabilities: [50] Power Management version 2
        Kernel driver in use: radeon
        Kernel modules: radeon, radeonfb

sw:

drm:
commit d207a38701d664ac818829249d4d2566349bb359
Author: Jakob Bornecrantz <jakob@vmware.com>
Date:   Fri Jan 8 15:34:44 2010 +0000

    tests: Add a very small libkms test

mesa
commit d1767bfdabac4fd1eedb1ad9ddea368e077725c6
Author: Michal Krol <michal@vmware.com>
Date:   Fri Jan 15 11:40:03 2010 +0100

    tgsi: Fix sanity checks for indirect registers.


xserver
commit 44f9c3d16c9c9b3362306a9ba26ee52e7baafeca
Merge: 032f978... 84956ca...
Author: Keith Packard <keithp@keithp.com>
Date:   Wed Jan 13 10:19:21 2010 -0800

    Merge remote branch 'jbarnes/master'

kernel - Linus's master git tree, up to
commit 61c39bb354a1f791ba6f562b766a72e508a036ee
Merge: 4a24eef... c540607...
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date:   Thu Jan 14 08:37:53 2010 -0800

    Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6

>From dmesg:

Forbidden register 0x22D0 in cs at 104
[drm:radeon_cs_ioctl] *ERROR* Invalid command stream !
Forbidden register 0x22D0 in cs at 6708
[drm:radeon_cs_ioctl] *ERROR* Invalid command stream !


after testing 3DMark2000/3DMark2001 in wine 1.1.35

>From brief google search 0x22D0 (on r200) seems to be R200_VAP_PVS_CNTL_1 :

http://www.opensubscriber.com/message/linux-kernel@vger.kernel.org/4305045.html


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