Re: PowerPC agpmode issues

10 messages, 5 authors, 2016-10-09 · open the first message on its own page

Re: PowerPC agpmode issues

From: Herminio Hernandez, Jr. <hidden>
Date: 2016-09-19 09:13:52

Apologies for the previous email.

What I was trying to say was I just recently installed Debain on my
PowerMac G5. I upgraded to sid and install the nonfree firmware. After
reboot I noticed that GPU acclleration was broken and I recieved the
following error

[   10.428542] [drm] Loading R300 Microcode
[   10.486631] radeon 0000:f0:10.0: firmware: direct-loading firmware
radeon/R300_cp.bin
[   10.486865] [drm] radeon: ring at 0x0000000000010000
[   10.634417] [drm:.r100_ring_test [radeon]] *ERROR* radeon: ring test
failed (scratch(0x15E4)=0xCAFEDEAD)
[   10.634526] [drm:.r100_cp_init [radeon]] *ERROR* radeon: cp isn't
working (-22).
[   10.634538] radeon 0000:f0:10.0: failed initializing CP (-22).
[   10.634546] radeon 0000:f0:10.0: Disabling GPU acceleration
[   10.781302] [drm:.r100_cp_fini [radeon]] *ERROR* Wait for CP idle
timeout, shutting down CP.
[   10.932698] [drm] radeon: cp finalized
[   10.932813] radeon 0000:f0:10.0: (r300_asic_reset:425)
RBBM_STATUS=0x80010140
[   11.432810] radeon 0000:f0:10.0: (r300_asic_reset:444)
RBBM_STATUS=0x80010140
[   11.928815] radeon 0000:f0:10.0: (r300_asic_reset:456)
RBBM_STATUS=0x00000140
[   11.928851] radeon 0000:f0:10.0: GPU reset succeed
[   11.928914] [drm] radeon: cp finalized
[   11.935052] [drm] radeon: ttm finalized
[   11.935061] [drm] Forcing AGP to PCI mode
[   11.935124] radeon 0000:f0:10.0: Invalid PCI ROM header signature:
expecting 0xaa55, got 0x0000
[   12.037448] [drm] Not an x86 BIOS ROM, not using.
[   12.037490] [drm] Using device-tree clock info
[   12.037500] [drm] Generation 2 PCI interface, using max accessible memory
[   12.037515] radeon 0000:f0:10.0: VRAM: 256M 0x00000000B0000000 -
0x00000000BFFFFFFF (64M used)
[   12.037525] radeon 0000:f0:10.0: GTT: 512M 0x0000000090000000 -
0x00000000AFFFFFFF
[   12.037538] [drm] Detected VRAM RAM=256M, BAR=256M
[   12.037544] [drm] RAM width 128bits DDR
[   12.037791] [drm] radeon: 64M of VRAM memory ready
[   12.037798] [drm] radeon: 512M of GTT memory ready.
[   12.037840] [drm] GART: num cpu pages 8192, num gpu pages 131072
[   12.039662] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[   12.039690] [drm] PCI GART of 512M enabled (table at 0x0000000062980000).
[   12.039820] radeon 0000:f0:10.0: WB enabled
[   12.039834] radeon 0000:f0:10.0: fence driver on ring 0 use gpu addr
0x0000000090000000 and cpu addr 0xc000000147010000
[   12.039849] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   12.039855] [drm] Driver supports precise vblank timestamp query.
[   12.039902] [drm] radeon: irq initialized.
[   12.040079] [drm] radeon: ring at 0x0000000090010000
[   12.188699] [drm:.r100_ring_test [radeon]] *ERROR* radeon: ring test
failed (scratch(0x15E4)=0xCAFEDEAD)
[   12.188806] [drm:.r100_cp_init [radeon]] *ERROR* radeon: cp isn't
working (-22).
[   12.188820] radeon 0000:f0:10.0: failed initializing CP (-22).
[   12.188827] radeon 0000:f0:10.0: Disabling GPU acceleration
[   12.335530] [drm:.r100_cp_fini [radeon]] *ERROR* Wait for CP idle
timeout, shutting down CP.
[   12.335670] [drm] radeon: cp finalized

I noticed the GPU was set to PCI mode however I did not set
radeon.agpmode=-1 in yaboot. I then installed Lubuntu 16.10 along side
Debian. I noticed that GPU was working and it was not set to force PCI
mode. Has there been a change to kernel in Debian to force this by default?
If so it looks like it is breaking on certain G5 machines. I am attaching
bothe dmesg files for review.

Thanks and sorry for the previous garbled email.

Herminio

2016-09-19 1:38 GMT-07:00 Herminio Hernandez <herminio.hernandezjr@gmail.com

Re: PowerPC agpmode issues

From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2016-09-19 10:39:46

On Mon, 2016-09-19 at 02:13 -0700, Herminio Hernandez, Jr. wrote:

I noticed the GPU was set to PCI mode however I did not set
radeon.agpmode=-1 in yaboot. I then installed Lubuntu 16.10 along
side Debian. I noticed that GPU was working and it was not set to
force PCI mode. Has there been a change to kernel in Debian to force
this by default? If so it looks like it is breaking on certain G5
machines. I am attaching bothe dmesg files for review.

Thanks and sorry for the previous garbled email.

Hrm... this is odd. I would expect PCI mode to work and AGP to be
busted to be honest. Can you provide the complete log ? I wonder
if it's trying to enable the PCIe bypass high aperture and hits the
Radeon address limit...

Ben.

Re: PowerPC agpmode issues

From: Herminio Hernandez, Jr. <hidden>
Date: 2016-09-19 19:30:37

Ben,

Are these what you are looking for? I can dump the entire journalctl log if
you need it.

Mathieu,

In Debian I looked in /etc/modules, /etc/modprobe.d/ , and
/usr/share/X11/xorg.conf.d/ to see where I can find what is forcing the GPU
into PCI mode and I have found nothing.

Here are some more updates with Lubuntu 16.10

1. Video playback with mpv renders in opengl with the GPU not in PCI mode

2. compton freezes the DE when I use opengl as the backend but works with
xrender

Regards,
Herminio



On Mon, Sep 19, 2016 at 3:38 AM, Benjamin Herrenschmidt <
benh@kernel.crashing.org> wrote:

On Mon, 2016-09-19 at 02:13 -0700, Herminio Hernandez, Jr. wrote:

quoted

I noticed the GPU was set to PCI mode however I did not set
radeon.agpmode=-1 in yaboot. I then installed Lubuntu 16.10 along
side Debian. I noticed that GPU was working and it was not set to
force PCI mode. Has there been a change to kernel in Debian to force
this by default? If so it looks like it is breaking on certain G5
machines. I am attaching bothe dmesg files for review.

Thanks and sorry for the previous garbled email.

Hrm... this is odd. I would expect PCI mode to work and AGP to be
busted to be honest. Can you provide the complete log ? I wonder
if it's trying to enable the PCIe bypass high aperture and hits the
Radeon address limit...

Ben.

Re: PowerPC agpmode issues

From: Mathieu Malaterre <hidden>
Date: 2016-09-19 12:36:36

Hi,

On Mon, Sep 19, 2016 at 11:13 AM, Herminio Hernandez, Jr.
[off-list ref] wrote:

Apologies for the previous email.

What I was trying to say was I just recently installed Debain on my PowerMac
G5. I upgraded to sid and install the nonfree firmware. After reboot I
noticed that GPU acclleration was broken and I recieved the following error

[   10.428542] [drm] Loading R300 Microcode
[   10.486631] radeon 0000:f0:10.0: firmware: direct-loading firmware
radeon/R300_cp.bin
[   10.486865] [drm] radeon: ring at 0x0000000000010000
[   10.634417] [drm:.r100_ring_test [radeon]] *ERROR* radeon: ring test
failed (scratch(0x15E4)=0xCAFEDEAD)
[   10.634526] [drm:.r100_cp_init [radeon]] *ERROR* radeon: cp isn't working

[...]

[   11.935061] [drm] Forcing AGP to PCI mode

Well that is really odd. I am trying hard to push my pci patch upstream:

https://patchwork.kernel.org/patch/9088181/

I do believe PCI mode always work, so I would be interested if you
could report the bug upstream to have PCI mode work on all Powermac
(AGP is know to be broken).

Pay attention to your /etc/modules file check whether or not it
contains a option for the loaded modules, eg:

radeon.agpmode=-1

Finally your dmesg looks odd since the line `[drm] Forcing AGP to PCI
mode` comes only after the first error.

-M

Re: PowerPC agpmode issues

From: Michel Dänzer <hidden>
Date: 2016-09-20 03:14:23

On 19/09/16 09:36 PM, Mathieu Malaterre wrote:

Finally your dmesg looks odd since the line `[drm] Forcing AGP to PCI
mode` comes only after the first error.

That isn't odd but the AGP->PCI(e) fallback mechanism working as
intended, trying AGP first and falling back to PCIe if AGP fails.

Herminio, does the problem also occur if you specify radeon.agpmode=-1
(or maybe =1) on the kernel command line?


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer

Re: PowerPC agpmode issues

From: Herminio Hernandez, Jr. <hidden>
Date: 2016-09-20 03:43:36

Michel,

Yes to both, however when I set radeon.agpmode=1 most of the time the
kernel freezes when booting. When I do get past that I get these errors:

rican-linux@Debian-G5:~$ dmesg |grep -e radeon -e drm
*[    0.000000] Kernel command line:
root=UUID=aeca9a67-31d7-4c4b-a0f8-4db328b33305  radeon.agpmode=1*
[   10.432049] [drm] Initialized drm 1.1.0 20060810
[   11.291427] [drm] radeon kernel modesetting enabled.
[   11.302838] fb: switching to radeondrmfb from OFfb ATY,Simone
[   11.317952] fb: switching to radeondrmfb from OFfb ATY,Simone
[   11.321318] radeon 0000:f0:10.0: enabling device (0006 -> 0007)
[   11.321741] [drm] initializing kernel modesetting (RV350 0x1002:0x4150
0x1002:0x4150 0x00).
[   11.321770] [drm] register mmio base: 0xA0000000
[   11.321776] [drm] register mmio size: 65536
[   11.321820] radeon 0000:f0:10.0: Invalid PCI ROM header signature:
expecting 0xaa55, got 0x0000
[   11.415530] [drm] Not an x86 BIOS ROM, not using.
[   11.415573] [drm] Using device-tree clock info
*[   11.415769] [drm:.radeon_agp_init [radeon]] *ERROR* Illegal AGP Mode: 1
(valid 4, 8), leaving at 8*
[   11.415818] radeon 0000:f0:10.0: putting AGP V3 device into 8x mode
[   11.415925] radeon 0000:f0:10.0: GTT: 256M 0x00000000 - 0x0FFFFFFF
[   11.415933] [drm] Generation 2 PCI interface, using max accessible memory
[   11.415943] radeon 0000:f0:10.0: VRAM: 256M 0x00000000B0000000 -
0x00000000BFFFFFFF (64M used)
[   11.415987] [drm] Detected VRAM RAM=256M, BAR=256M
[   11.415993] [drm] RAM width 128bits DDR
[   11.416229] [drm] radeon: 64M of VRAM memory ready
[   11.416237] [drm] radeon: 256M of GTT memory ready.
[   11.416308] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[   11.431606] radeon 0000:f0:10.0: WB disabled
[   11.431627] radeon 0000:f0:10.0: fence driver on ring 0 use gpu addr
0x0000000000000000 and cpu addr 0xd000000003ee0000
[   11.431642] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   11.431648] [drm] Driver supports precise vblank timestamp query.
[   11.431700] [drm] radeon: irq initialized.
[   11.431743] [drm] Loading R300 Microcode
[   11.488921] radeon 0000:f0:10.0: firmware: direct-loading firmware
radeon/R300_cp.bin
[   11.489178] [drm] radeon: ring at 0x0000000000010000





*[   11.637210] [drm:.r100_ring_test [radeon]] *ERROR* radeon: ring test
failed (scratch(0x15E4)=0xCAFEDEAD)[   11.637318] [drm:.r100_cp_init
[radeon]] *ERROR* radeon: cp isn't working (-22).[   11.637331] radeon
0000:f0:10.0: failed initializing CP (-22).[   11.637338] radeon
0000:f0:10.0: Disabling GPU acceleration[   11.784325] [drm:.r100_cp_fini
[radeon]] *ERROR* Wait for CP idle timeout, shutting down CP.[   11.931351]
[drm] radeon: cp finalized*



*[   11.931464] radeon 0000:f0:10.0: (r300_asic_reset:425)
RBBM_STATUS=0x80010140[   12.431463] radeon 0000:f0:10.0:
(r300_asic_reset:444) RBBM_STATUS=0x80010140[   12.927471] radeon
0000:f0:10.0: (r300_asic_reset:456) RBBM_STATUS=0x00000140[   12.927510]
radeon 0000:f0:10.0: GPU reset succeed*



On Mon, Sep 19, 2016 at 8:05 PM, Michel Dänzer [off-list ref] wrote:

On 19/09/16 09:36 PM, Mathieu Malaterre wrote:

quoted

Finally your dmesg looks odd since the line `[drm] Forcing AGP to PCI
mode` comes only after the first error.

That isn't odd but the AGP->PCI(e) fallback mechanism working as
intended, trying AGP first and falling back to PCIe if AGP fails.

Herminio, does the problem also occur if you specify radeon.agpmode=-1
(or maybe =1) on the kernel command line?


--
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer

Re: PowerPC agpmode issues

From: Michel Dänzer <hidden>
Date: 2016-09-20 06:20:47

On 20/09/16 12:43 PM, Herminio Hernandez, Jr. wrote:

Yes to both, however when I set radeon.agpmode=1 most of the time the
kernel freezes when booting. When I do get past that I get these errors:

[...]

*[   11.415769] [drm:.radeon_agp_init [radeon]] *ERROR* Illegal AGP
Mode: 1 (valid 4, 8), leaving at 8*

As you can see, AGP 1x isn't supported by your setup, only 4x or 8x. How
about radeon.agpmode=4?


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer

Re: PowerPC agpmode issues

From: Herminio Hernandez, Jr. <hidden>
Date: 2016-09-21 06:20:52

I am still getting errors even with radeon.agpmode=4 is set

rican-linux@Debian-G5:~$ dmesg |grep -e radeom -e drm -e radeon.agpmode
[    0.000000] Kernel command line:
root=UUID=aeca9a67-31d7-4c4b-a0f8-4db328b33305  radeon.agpmode=4
[    9.734366] [drm] Initialized drm 1.1.0 20060810
[   10.934519] [drm] radeon kernel modesetting enabled.
[   10.943743] fb: switching to radeondrmfb from OFfb ATY,Simone
[   10.954622] fb: switching to radeondrmfb from OFfb ATY,Simone
[   10.956515] [drm] initializing kernel modesetting (RV350 0x1002:0x4150
0x1002:0x4150 0x00).
[   10.956552] [drm] register mmio base: 0xA0000000
[   10.956558] [drm] register mmio size: 65536
[   11.046327] [drm] Not an x86 BIOS ROM, not using.
[   11.046358] [drm] Using device-tree clock info
[   11.046369] [drm] AGP mode requested: 4
[   11.046528] [drm] Generation 2 PCI interface, using max accessible memory
[   11.046582] [drm] Detected VRAM RAM=256M, BAR=256M
[   11.046587] [drm] RAM width 128bits DDR
[   11.046858] [drm] radeon: 64M of VRAM memory ready
[   11.046866] [drm] radeon: 256M of GTT memory ready.
[   11.046935] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[   11.061306] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   11.061312] [drm] Driver supports precise vblank timestamp query.
[   11.061363] [drm] radeon: irq initialized.
[   11.061405] [drm] Loading R300 Microcode
[   11.110467] [drm] radeon: ring at 0x0000000000010000
[   11.257952] [drm:.r100_ring_test [radeon]] *ERROR* radeon: ring test
failed (scratch(0x15E4)=0xCAFEDEAD)
[   11.258060] [drm:.r100_cp_init [radeon]] *ERROR* radeon: cp isn't
working (-22).
[   11.404548] [drm:.r100_cp_fini [radeon]] *ERROR* Wait for CP idle
timeout, shutting down CP.
[   11.551199] [drm] radeon: cp finalized
[   12.547388] [drm] radeon: cp finalized
[   12.553854] [drm] radeon: ttm finalized
[   12.553861] [drm] Forcing AGP to PCI mode
[   12.643384] [drm] Not an x86 BIOS ROM, not using.
[   12.643406] [drm] Using device-tree clock info
[   12.643414] [drm] Generation 2 PCI interface, using max accessible memory
[   12.643446] [drm] Detected VRAM RAM=256M, BAR=256M
[   12.643452] [drm] RAM width 128bits DDR
[   12.643712] [drm] radeon: 64M of VRAM memory ready
[   12.643719] [drm] radeon: 512M of GTT memory ready.
[   12.643761] [drm] GART: num cpu pages 8192, num gpu pages 131072
[   12.645324] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[   12.645343] [drm] PCI GART of 512M enabled (table at 0x0000000062F80000).
[   12.645462] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   12.645468] [drm] Driver supports precise vblank timestamp query.
[   12.645512] [drm] radeon: irq initialized.
[   12.645689] [drm] radeon: ring at 0x0000000090010000
[   12.793131] [drm:.r100_ring_test [radeon]] *ERROR* radeon: ring test
failed (scratch(0x15E4)=0xCAFEDEAD)
[   12.793235] [drm:.r100_cp_init [radeon]] *ERROR* radeon: cp isn't
working (-22).
[   12.939961] [drm:.r100_cp_fini [radeon]] *ERROR* Wait for CP idle
timeout, shutting down CP.
[   12.940193] [drm] radeon: cp finalized
[   12.944581] [drm] Connector Table: 12 (mac g5 9600)
[   12.944609] [drm] No valid Ext TMDS info found in BIOS
[   12.944621] [drm] No TV DAC info found in BIOS
[   12.944798] [drm] No TMDS info found in BIOS
[   12.944974] [drm] Radeon Display Connectors
[   12.944981] [drm] Connector 0:
[   12.944985] [drm]   DVI-I-1
[   12.944990] [drm]   HPD1
[   12.944995] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
[   12.945000] [drm]   Encoders:
[   12.945005] [drm]     DFP2: INTERNAL_DVO1
[   12.945010] [drm]     CRT2: INTERNAL_DAC2
[   12.945015] [drm] Connector 1:
[   12.945019] [drm]   DVI-I-2
[   12.945023] [drm]   HPD2
[   12.945028] [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
[   12.945033] [drm]   Encoders:
[   12.945037] [drm]     DFP1: INTERNAL_TMDS1
[   12.945042] [drm]     CRT1: INTERNAL_DAC1
[   12.945046] [drm] Connector 2:
[   12.945051] [drm]   SVIDEO-1
[   12.945055] [drm]   Encoders:
[   12.945059] [drm]     TV1: INTERNAL_DAC2
[   13.028211] [drm] fb mappable at 0xB0040000
[   13.028229] [drm] vram apper at 0xB0000000
[   13.028234] [drm] size 8323072
[   13.028238] [drm] fb depth is 24
[   13.028243] [drm]    pitch is 7680
[   13.122329] radeon 0000:f0:10.0: fb0: radeondrmfb frame buffer device
[   13.175092] [drm] Initialized radeon 2.43.0 20080528 for 0000:f0:10.0 on
minor 0
rican-linux@Debian-G5:~$


On Mon, Sep 19, 2016 at 11:20 PM, Michel Dänzer [off-list ref] wrote:

On 20/09/16 12:43 PM, Herminio Hernandez, Jr. wrote:

quoted

Yes to both, however when I set radeon.agpmode=1 most of the time the
kernel freezes when booting. When I do get past that I get these errors:

[...]

quoted

*[   11.415769] [drm:.radeon_agp_init [radeon]] *ERROR* Illegal AGP
Mode: 1 (valid 4, 8), leaving at 8*

As you can see, AGP 1x isn't supported by your setup, only 4x or 8x. How
about radeon.agpmode=4?


--
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer

Re: PowerPC agpmode issues

From: Herminio Hernandez, Jr. <hidden>
Date: 2016-10-08 19:05:05

Performed an apt dist-upgrade and rebooted with agpmode=4 and still the GPU
is failing with errors. Should I proceed to place a bug report on this?

Herminio

On Tue, Sep 20, 2016 at 11:20 PM, Herminio Hernandez, Jr. <
herminio.hernandezjr@gmail.com> wrote:

I am still getting errors even with radeon.agpmode=4 is set

rican-linux@Debian-G5:~$ dmesg |grep -e radeom -e drm -e radeon.agpmode
[    0.000000] Kernel command line: root=UUID=aeca9a67-31d7-4c4b-a0f8-4db328b33305
radeon.agpmode=4
[    9.734366] [drm] Initialized drm 1.1.0 20060810
[   10.934519] [drm] radeon kernel modesetting enabled.
[   10.943743] fb: switching to radeondrmfb from OFfb ATY,Simone
[   10.954622] fb: switching to radeondrmfb from OFfb ATY,Simone
[   10.956515] [drm] initializing kernel modesetting (RV350 0x1002:0x4150
0x1002:0x4150 0x00).
[   10.956552] [drm] register mmio base: 0xA0000000
[   10.956558] [drm] register mmio size: 65536
[   11.046327] [drm] Not an x86 BIOS ROM, not using.
[   11.046358] [drm] Using device-tree clock info
[   11.046369] [drm] AGP mode requested: 4
[   11.046528] [drm] Generation 2 PCI interface, using max accessible
memory
[   11.046582] [drm] Detected VRAM RAM=256M, BAR=256M
[   11.046587] [drm] RAM width 128bits DDR
[   11.046858] [drm] radeon: 64M of VRAM memory ready
[   11.046866] [drm] radeon: 256M of GTT memory ready.
[   11.046935] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[   11.061306] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   11.061312] [drm] Driver supports precise vblank timestamp query.
[   11.061363] [drm] radeon: irq initialized.
[   11.061405] [drm] Loading R300 Microcode
[   11.110467] [drm] radeon: ring at 0x0000000000010000
[   11.257952] [drm:.r100_ring_test [radeon]] *ERROR* radeon: ring test
failed (scratch(0x15E4)=0xCAFEDEAD)
[   11.258060] [drm:.r100_cp_init [radeon]] *ERROR* radeon: cp isn't
working (-22).
[   11.404548] [drm:.r100_cp_fini [radeon]] *ERROR* Wait for CP idle
timeout, shutting down CP.
[   11.551199] [drm] radeon: cp finalized
[   12.547388] [drm] radeon: cp finalized
[   12.553854] [drm] radeon: ttm finalized
[   12.553861] [drm] Forcing AGP to PCI mode
[   12.643384] [drm] Not an x86 BIOS ROM, not using.
[   12.643406] [drm] Using device-tree clock info
[   12.643414] [drm] Generation 2 PCI interface, using max accessible
memory
[   12.643446] [drm] Detected VRAM RAM=256M, BAR=256M
[   12.643452] [drm] RAM width 128bits DDR
[   12.643712] [drm] radeon: 64M of VRAM memory ready
[   12.643719] [drm] radeon: 512M of GTT memory ready.
[   12.643761] [drm] GART: num cpu pages 8192, num gpu pages 131072
[   12.645324] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[   12.645343] [drm] PCI GART of 512M enabled (table at
0x0000000062F80000).
[   12.645462] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   12.645468] [drm] Driver supports precise vblank timestamp query.
[   12.645512] [drm] radeon: irq initialized.
[   12.645689] [drm] radeon: ring at 0x0000000090010000
[   12.793131] [drm:.r100_ring_test [radeon]] *ERROR* radeon: ring test
failed (scratch(0x15E4)=0xCAFEDEAD)
[   12.793235] [drm:.r100_cp_init [radeon]] *ERROR* radeon: cp isn't
working (-22).
[   12.939961] [drm:.r100_cp_fini [radeon]] *ERROR* Wait for CP idle
timeout, shutting down CP.
[   12.940193] [drm] radeon: cp finalized
[   12.944581] [drm] Connector Table: 12 (mac g5 9600)
[   12.944609] [drm] No valid Ext TMDS info found in BIOS
[   12.944621] [drm] No TV DAC info found in BIOS
[   12.944798] [drm] No TMDS info found in BIOS
[   12.944974] [drm] Radeon Display Connectors
[   12.944981] [drm] Connector 0:
[   12.944985] [drm]   DVI-I-1
[   12.944990] [drm]   HPD1
[   12.944995] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
[   12.945000] [drm]   Encoders:
[   12.945005] [drm]     DFP2: INTERNAL_DVO1
[   12.945010] [drm]     CRT2: INTERNAL_DAC2
[   12.945015] [drm] Connector 1:
[   12.945019] [drm]   DVI-I-2
[   12.945023] [drm]   HPD2
[   12.945028] [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
[   12.945033] [drm]   Encoders:
[   12.945037] [drm]     DFP1: INTERNAL_TMDS1
[   12.945042] [drm]     CRT1: INTERNAL_DAC1
[   12.945046] [drm] Connector 2:
[   12.945051] [drm]   SVIDEO-1
[   12.945055] [drm]   Encoders:
[   12.945059] [drm]     TV1: INTERNAL_DAC2
[   13.028211] [drm] fb mappable at 0xB0040000
[   13.028229] [drm] vram apper at 0xB0000000
[   13.028234] [drm] size 8323072
[   13.028238] [drm] fb depth is 24
[   13.028243] [drm]    pitch is 7680
[   13.122329] radeon 0000:f0:10.0: fb0: radeondrmfb frame buffer device
[   13.175092] [drm] Initialized radeon 2.43.0 20080528 for 0000:f0:10.0
on minor 0
rican-linux@Debian-G5:~$


On Mon, Sep 19, 2016 at 11:20 PM, Michel Dänzer [off-list ref]
wrote:

quoted

On 20/09/16 12:43 PM, Herminio Hernandez, Jr. wrote:

quoted

Yes to both, however when I set radeon.agpmode=1 most of the time the
kernel freezes when booting. When I do get past that I get these errors:

[...]

quoted

*[   11.415769] [drm:.radeon_agp_init [radeon]] *ERROR* Illegal AGP
Mode: 1 (valid 4, 8), leaving at 8*

As you can see, AGP 1x isn't supported by your setup, only 4x or 8x. How
about radeon.agpmode=4?


--
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer

Re: PowerPC agpmode issues

From: Benjamin Herrenschmidt <hidden>
Date: 2016-10-09 07:50:10

On Sat, 2016-10-08 at 12:05 -0700, Herminio Hernandez, Jr. wrote:

Performed an apt dist-upgrade and rebooted with agpmode=4 and still
the GPU is failing with errors. Should I proceed to place a bug
report on this?

I wouldn't even try to be honest. The HW issues in Apple AGP
implementation pretty much guarantee that things will crash
with the recent DRIs. Back when AGP memory was just a single
chunk of memory we got it to limp along but since DRI2 it's
pretty much hopeless.

I would stick to PCI GART even if it sucks for performances.

Cheers,
Ben.

Herminio

On Tue, Sep 20, 2016 at 11:20 PM, Herminio Hernandez, Jr. <herminio.h
ernandezjr@gmail.com> wrote:

quoted

I am still getting errors even with radeon.agpmode=4 is set

rican-linux@Debian-G5:~$ dmesg |grep -e radeom -e drm -e
radeon.agpmode
[    0.000000] Kernel command line: root=UUID=aeca9a67-31d7-4c4b-
a0f8-4db328b33305  radeon.agpmode=4
[    9.734366] [drm] Initialized drm 1.1.0 20060810
[   10.934519] [drm] radeon kernel modesetting enabled.
[   10.943743] fb: switching to radeondrmfb from OFfb ATY,Simone
[   10.954622] fb: switching to radeondrmfb from OFfb ATY,Simone
[   10.956515] [drm] initializing kernel modesetting (RV350
0x1002:0x4150 0x1002:0x4150 0x00).
[   10.956552] [drm] register mmio base: 0xA0000000
[   10.956558] [drm] register mmio size: 65536
[   11.046327] [drm] Not an x86 BIOS ROM, not using.
[   11.046358] [drm] Using device-tree clock info
[   11.046369] [drm] AGP mode requested: 4
[   11.046528] [drm] Generation 2 PCI interface, using max
accessible memory
[   11.046582] [drm] Detected VRAM RAM=256M, BAR=256M
[   11.046587] [drm] RAM width 128bits DDR
[   11.046858] [drm] radeon: 64M of VRAM memory ready
[   11.046866] [drm] radeon: 256M of GTT memory ready.
[   11.046935] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[   11.061306] [drm] Supports vblank timestamp caching Rev 2
(21.10.2013).
[   11.061312] [drm] Driver supports precise vblank timestamp
query.
[   11.061363] [drm] radeon: irq initialized.
[   11.061405] [drm] Loading R300 Microcode
[   11.110467] [drm] radeon: ring at 0x0000000000010000
[   11.257952] [drm:.r100_ring_test [radeon]] *ERROR* radeon: ring
test failed (scratch(0x15E4)=0xCAFEDEAD)
[   11.258060] [drm:.r100_cp_init [radeon]] *ERROR* radeon: cp
isn't working (-22).
[   11.404548] [drm:.r100_cp_fini [radeon]] *ERROR* Wait for CP
idle timeout, shutting down CP.
[   11.551199] [drm] radeon: cp finalized
[   12.547388] [drm] radeon: cp finalized
[   12.553854] [drm] radeon: ttm finalized
[   12.553861] [drm] Forcing AGP to PCI mode
[   12.643384] [drm] Not an x86 BIOS ROM, not using.
[   12.643406] [drm] Using device-tree clock info
[   12.643414] [drm] Generation 2 PCI interface, using max
accessible memory
[   12.643446] [drm] Detected VRAM RAM=256M, BAR=256M
[   12.643452] [drm] RAM width 128bits DDR
[   12.643712] [drm] radeon: 64M of VRAM memory ready
[   12.643719] [drm] radeon: 512M of GTT memory ready.
[   12.643761] [drm] GART: num cpu pages 8192, num gpu pages 131072
[   12.645324] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[   12.645343] [drm] PCI GART of 512M enabled (table at
0x0000000062F80000).
[   12.645462] [drm] Supports vblank timestamp caching Rev 2
(21.10.2013).
[   12.645468] [drm] Driver supports precise vblank timestamp
query.
[   12.645512] [drm] radeon: irq initialized.
[   12.645689] [drm] radeon: ring at 0x0000000090010000
[   12.793131] [drm:.r100_ring_test [radeon]] *ERROR* radeon: ring
test failed (scratch(0x15E4)=0xCAFEDEAD)
[   12.793235] [drm:.r100_cp_init [radeon]] *ERROR* radeon: cp
isn't working (-22).
[   12.939961] [drm:.r100_cp_fini [radeon]] *ERROR* Wait for CP
idle timeout, shutting down CP.
[   12.940193] [drm] radeon: cp finalized
[   12.944581] [drm] Connector Table: 12 (mac g5 9600)
[   12.944609] [drm] No valid Ext TMDS info found in BIOS
[   12.944621] [drm] No TV DAC info found in BIOS
[   12.944798] [drm] No TMDS info found in BIOS
[   12.944974] [drm] Radeon Display Connectors
[   12.944981] [drm] Connector 0:
[   12.944985] [drm]   DVI-I-1
[   12.944990] [drm]   HPD1
[   12.944995] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
[   12.945000] [drm]   Encoders:
[   12.945005] [drm]     DFP2: INTERNAL_DVO1
[   12.945010] [drm]     CRT2: INTERNAL_DAC2
[   12.945015] [drm] Connector 1:
[   12.945019] [drm]   DVI-I-2
[   12.945023] [drm]   HPD2
[   12.945028] [drm]   DDC: 0x60 0x60 0x60 0x60 0x60 0x60 0x60 0x60
[   12.945033] [drm]   Encoders:
[   12.945037] [drm]     DFP1: INTERNAL_TMDS1
[   12.945042] [drm]     CRT1: INTERNAL_DAC1
[   12.945046] [drm] Connector 2:
[   12.945051] [drm]   SVIDEO-1
[   12.945055] [drm]   Encoders:
[   12.945059] [drm]     TV1: INTERNAL_DAC2
[   13.028211] [drm] fb mappable at 0xB0040000
[   13.028229] [drm] vram apper at 0xB0000000
[   13.028234] [drm] size 8323072
[   13.028238] [drm] fb depth is 24
[   13.028243] [drm]    pitch is 7680
[   13.122329] radeon 0000:f0:10.0: fb0: radeondrmfb frame buffer
device
[   13.175092] [drm] Initialized radeon 2.43.0 20080528 for
0000:f0:10.0 on minor 0
rican-linux@Debian-G5:~$ 


On Mon, Sep 19, 2016 at 11:20 PM, Michel Dänzer <michel@daenzer.net

quoted

wrote:
On 20/09/16 12:43 PM, Herminio Hernandez, Jr. wrote:

quoted

Yes to both, however when I set radeon.agpmode=1 most of the

time the

quoted

kernel freezes when booting. When I do get past that I get

these errors:

[...]

quoted

*[   11.415769] [drm:.radeon_agp_init [radeon]] *ERROR* Illegal

AGP

quoted

Mode: 1 (valid 4, 8), leaving at 8*

As you can see, AGP 1x isn't supported by your setup, only 4x or
8x. How
about radeon.agpmode=4?


--
Earthling Michel Dänzer               |               http://www.
amd.com
Libre software enthusiast             |             Mesa and X
developer

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