Bug 87856 - Driver load fails with no error on ppc64 host
Summary: Driver load fails with no error on ppc64 host
Status: RESOLVED FIXED
Alias: None
Product: Mesa
Classification: Unclassified
Component: Drivers/Gallium/r600 (show other bugs)
Version: 10.2
Hardware: PowerPC Linux (All)
: medium normal
Assignee: Default DRI bug account
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2014-12-30 08:59 UTC by 65a
Modified: 2016-04-30 06:14 UTC (History)
6 users (show)

See Also:
i915 platform:
i915 features:


Attachments
Xorg log, dmesg | fgrep radeon, and glxinfo with LIBGL_DEBUG set (9.60 KB, text/plain)
2014-12-30 08:59 UTC, 65a
Details

Description 65a 2014-12-30 08:59:34 UTC
Created attachment 111507 [details]
Xorg log, dmesg | fgrep radeon, and glxinfo with LIBGL_DEBUG set

I have a PowerPC G5 (ppc64 with 64-bit userland) with working KMS using a (ostensibly x86) Radeon HD4650. KMS is enabled and the kernel and Xorg parts of KMS/DRI2 appear to be attaching correctly.

After X starts, running LIBGL_DEBUG=verbose glxinfo outputs the following:
libGL: OpenDriver: trying /usr/lib64/dri/tls/r600_dri.so
libGL: OpenDriver: trying /usr/lib64/dri/r600_dri.so
libGL: driver does not expose __driDriverGetExtensions_r600(): /usr/lib64/dri/r600_dri.so: undefined symbol: __driDriverGetExtensions_r600
libGL: Can't open configuration file /root/.drirc: No such file or directory.
libGL: Can't open configuration file /root/.drirc: No such file or directory.
libGL error: failed to load driver: r600
libGL: OpenDriver: trying /usr/lib64/dri/tls/swrast_dri.so
libGL: OpenDriver: trying /usr/lib64/dri/swrast_dri.so
libGL: driver does not expose __driDriverGetExtensions_swrast(): /usr/lib64/dri/swrast_dri.so: undefined symbol: __driDriverGetExtensions_swrast
libGL: Can't open configuration file /root/.drirc: No such file or directory.
libGL: Can't open configuration file /root/.drirc: No such file or directory.
libGL error: failed to load driver: swrast
Error: couldn't find RGB GLX visual or fbconfig
Error: couldn't find RGB GLX visual or fbconfig

I am under the impression that the undefined symbol should not be causing problems after reading this bug: 
https://bugs.freedesktop.org/show_bug.cgi?id=72198

Nonetheless, glxgears will not run, and in general it appears mesa acceleration is not occurring. Mesa was compiled with support for llvm and the r600 generator.
I am attaching various logs. I would be glad to test patches or hacks :)
Comment 1 Michel Dänzer 2015-01-07 07:20:44 UTC
See bug 71789.
Comment 2 65a 2015-01-10 03:06:45 UTC
It appears that the same issue as mentioned by Michael Danzer is affecting Linux. Setting pixel depth to 16 does resolve the issue, and properly reports Gallium support. I am testing the patches now. Is there any plan to integrate these patches? What work needs to be done?
Comment 3 65a 2015-01-10 03:37:42 UTC
Patches do not work for r600 as they contain r300 specific code
Comment 4 kristof 2015-05-18 09:38:30 UTC
Hello,

I've successfully install Debian Jessie on iMac G5 revC (iSight)
Facing same issue, I've followed these instructions here in order to downgrad mesa packages : http://ppcluddite.blogspot.fr/2012/03/installing-debian-linux-on-ppc-part-iv.html#graphics

uname -a : Linux iMac17c 3.16.0-4-powerpc64 #1 SMP Debian 3.16.7-ckt9-3~deb8u1 (2015-04-24) ppc64 GNU/Linux

0000:04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] RV380 [Radeon X600] (prog-if 00 [VGA controller])
	Subsystem: Advanced Micro Devices, Inc. [AMD/ATI] RV380 [Radeon X600]
	Flags: bus master, fast devsel, latency 0, IRQ 25
	Memory at 98000000 (32-bit, prefetchable) [size=128M]
	I/O ports at 0400 [size=256]
	Memory at 90000000 (32-bit, non-prefetchable) [size=64K]
	Expansion ROM at 90020000 [size=128K]
	Capabilities: [50] Power Management version 2
	Capabilities: [58] Express Endpoint, MSI 00
	Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit+
	Capabilities: [100] Advanced Error Reporting
	Kernel driver in use: radeon

Workaround :
1) Jessie fresh install graphics results (no firmware non-free installed), able to log in graphic session :

LIBGL_DEBUG=verbose glxinfo | grep render
libGL: screen 0 does not appear to be DRI3 capable
libGL: screen 0 does not appear to be DRI2 capable
libGL: OpenDriver: trying /usr/lib/powerpc-linux-gnu/dri/tls/swrast_dri.so
libGL: OpenDriver: trying /usr/lib/powerpc-linux-gnu/dri/swrast_dri.so
libGL: Can't open configuration file /home/kristof/.drirc: No such file or directory.
direct rendering: Yes
    GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, 
    GLX_MESA_query_renderer, GLX_OML_swap_method, GLX_SGIS_multisample, 
OpenGL renderer string: Software Rasterizer
    GL_NV_blend_square, GL_NV_conditional_render, GL_NV_depth_clamp, 

dmesg | egrep 'drm|radeon' complains about microcode :
[   13.715213] [drm] Loading R300 Microcode
[   13.732935] radeon 0000:04:00.0: firmware: failed to load radeon/R300_cp.bin (-2)
[   13.732962] [drm:r100_cp_init] *ERROR* Failed to load firmware!
[   13.732971] radeon 0000:04:00.0: failed initializing CP (-2).
[   13.732978] radeon 0000:04:00.0: Disabling GPU acceleration


2) then install it with non-free firmware :

dmesg | egrep 'drm|radeon' happy because it find the microcode :-)
[   13.469992] [drm] radeon: irq initialized.
[   13.470031] [drm] Loading R300 Microcode
[   13.560891] radeon 0000:04:00.0: firmware: direct-loading firmware radeon/R300_cp.bin
[   13.561237] [drm] radeon: ring at 0x0000000078010000

but it breaks something :-(

LIBGL_DEBUG=verbose glxinfo | grep render
libGL: screen 0 does not appear to be DRI3 capable
libGL: pci id for fd 4: 1002:5b62, driver r300
libGL: OpenDriver: trying /usr/lib/powerpc-linux-gnu/dri/tls/r300_dri.so
libGL: OpenDriver: trying /usr/lib/powerpc-linux-gnu/dri/r300_dri.so
libGL: Can't open configuration file /home/kristof/.drirc: No such file or directory.
libGL: Can't open configuration file /home/kristof/.drirc: No such file or directory.
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: r300
libGL: OpenDriver: trying /usr/lib/powerpc-linux-gnu/dri/tls/swrast_dri.so
libGL: OpenDriver: trying /usr/lib/powerpc-linux-gnu/dri/swrast_dri.so
libGL: Can't open configuration file /home/kristof/.drirc: No such file or directory.
libGL error: No matching fbConfigs or visuals found
libGL error: failed to load driver: swrast
Error: couldn't find RGB GLX visual or fbconfig

3) according to the procedure provides in the link above, I've applied patch :

LIBGL_DEBUG=verbose glxinfo | grep render
libGL: screen 0 does not appear to be DRI3 capable
libGL: pci id for fd 4: 1002:5b62, driver r300
libGL: OpenDriver: trying /usr/lib/powerpc-linux-gnu/dri/tls/r300_dri.so
libGL: OpenDriver: trying /usr/lib/powerpc-linux-gnu/dri/r300_dri.so
libGL: driver does not expose __driDriverGetExtensions_r300(): /usr/lib/powerpc-linux-gnu/dri/r300_dri.so: undefined symbol: __driDriverGetExtensions_r300
libGL: Can't open configuration file /home/kristof/.drirc: No such file or directory.
libGL: Can't open configuration file /home/kristof/.drirc: No such file or directory.
direct rendering: Yes
    GLX_MESA_multithread_makecurrent, GLX_MESA_query_renderer, 
OpenGL renderer string: Gallium 0.4 on ATI RV370
    GL_NV_blend_square, GL_NV_conditional_render, GL_NV_fog_distance, 
    GL_OES_depth_texture, GL_OES_element_index_uint, GL_OES_fbo_render_mipmap,

dmesg | egrep 'drm|radeon'
[   13.085940] [drm] Initialized drm 1.1.0 20060810
[   13.518475] [drm] radeon kernel modesetting enabled.
[   13.518613] fb: switching to radeondrmfb from OFfb ATY,Aphrod
[   13.542630] fb: switching to radeondrmfb from OFfb ATY,Aphrod
[   13.543441] radeon 0000:04:00.0: enabling device (0006 -> 0007)
[   13.544541] [drm] initializing kernel modesetting (RV380 0x1002:0x5B62 0x1002:0x5B62).
[   13.544639] radeon 0000:04:00.0: Using 64-bit DMA iommu bypass
[   13.544658] [drm] register mmio base: 0x90000000
[   13.544663] [drm] register mmio size: 65536
[   13.544841] radeon 0000:04:00.0: Invalid ROM contents
[   13.544868] radeon 0000:04:00.0: Invalid ROM contents
[   13.544881] [drm:radeon_get_bios] *ERROR* Unable to locate a BIOS ROM
[   13.544972] [drm] Using device-tree clock info
[   13.545019] [drm] Generation 2 PCI interface, using max accessible memory
[   13.545031] radeon 0000:04:00.0: VRAM: 128M 0x0000000098000000 - 0x000000009FFFFFFF (128M used)
[   13.545040] radeon 0000:04:00.0: GTT: 512M 0x0000000078000000 - 0x0000000097FFFFFF
[   13.549473] [drm] Detected VRAM RAM=128M, BAR=128M
[   13.549489] [drm] RAM width 128bits DDR
[   13.549842] [drm] radeon: 128M of VRAM memory ready
[   13.549850] [drm] radeon: 512M of GTT memory ready.
[   13.549915] [drm] GART: num cpu pages 8192, num gpu pages 131072
[   13.550164] [drm] radeon: 1 quad pipes, 1 Z pipes initialized.
[   13.579036] [drm] PCIE GART of 512M enabled (table at 0x0000000098040000).
[   13.582052] radeon 0000:04:00.0: WB enabled
[   13.582150] radeon 0000:04:00.0: fence driver on ring 0 use gpu addr 0x0000000078000000 and cpu addr 0xc00000004d1f0000
[   13.583048] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[   13.583066] [drm] Driver supports precise vblank timestamp query.
[   13.583081] radeon 0000:04:00.0: radeon: MSI limited to 32-bit
[   13.583135] [drm] radeon: irq initialized.
[   13.583180] [drm] Loading R300 Microcode
[   13.655061] radeon 0000:04:00.0: firmware: direct-loading firmware radeon/R300_cp.bin
[   13.655383] [drm] radeon: ring at 0x0000000078010000
[   13.655421] [drm] ring test succeeded in 0 usecs
[   13.655637] [drm] ib test succeeded in 0 usecs
[   13.689091] [drm] Connector Table: 8 (imac g5 isight)
[   13.689133] [drm] No TMDS info found in BIOS
[   13.689285] [drm] No TV DAC info found in BIOS
[   13.689444] [drm] Radeon Display Connectors
[   13.689450] [drm] Connector 0:
[   13.689454] [drm]   DVI-D-1
[   13.689459] [drm]   HPD1
[   13.689465] [drm]   DDC: 0x68 0x68 0x68 0x68 0x68 0x68 0x68 0x68
[   13.689470] [drm]   Encoders:
[   13.689475] [drm]     DFP1: INTERNAL_TMDS1
[   13.689479] [drm] Connector 1:
[   13.689483] [drm]   VGA-1
[   13.689489] [drm]   DDC: 0x64 0x64 0x64 0x64 0x64 0x64 0x64 0x64
[   13.689494] [drm]   Encoders:
[   13.689498] [drm]     CRT2: INTERNAL_DAC2
[   13.689503] [drm] Connector 2:
[   13.689507] [drm]   SVIDEO-1
[   13.689511] [drm]   Encoders:
[   13.689515] [drm]     TV1: INTERNAL_DAC2
[   13.888366] [drm] fb mappable at 0x980C0000
[   13.888385] [drm] vram apper at 0x98000000
[   13.888390] [drm] size 5242880
[   13.888395] [drm] fb depth is 24
[   13.888399] [drm]    pitch is 5760
[   13.955320] radeon 0000:04:00.0: fb0: radeondrmfb frame buffer device
[   13.955425] radeon 0000:04:00.0: registered panic notifier
[   13.984018] [drm] Initialized radeon 2.39.0 20080528 for 0000:04:00.0 on minor 0

PS : can someone tells me if it this an "abnornal" things in the last dmesg | egrep 'drm|radeon' please ?

Thanks and have a nice day

Kristof
Comment 5 Alex Deucher 2015-05-18 14:19:53 UTC
(In reply to kristof from comment #4)
> PS : can someone tells me if it this an "abnornal" things in the last dmesg
> | egrep 'drm|radeon' please ?
> 
> Thanks and have a nice day

The kernel side looks fine.  It appears to be a problem with the usermode stack.  You might be able to work around it by disabling acceleration.  Try adding:
Option "NoAccel" "True"
to the device section of your xorg config.

I'm not really sure how well the usermode stuff works on BE systems.
Comment 6 kristof 2015-05-18 19:22:04 UTC
(In reply to Alex Deucher from comment #5)
> (In reply to kristof from comment #4)
> > PS : can someone tells me if it this an "abnornal" things in the last dmesg
> > | egrep 'drm|radeon' please ?
> > 
> > Thanks and have a nice day
> 
> The kernel side looks fine.  It appears to be a problem with the usermode
> stack.  You might be able to work around it by disabling acceleration.  Try
> adding:
> Option "NoAccel" "True"
> to the device section of your xorg config.
> 
> I'm not really sure how well the usermode stuff works on BE systems.
Hi Alex and thanks for response,

Forgot to mention that I don't use :
* xorg.conf
* no options in my yaboot.conf
* all the OS installation stand by default, just patch Mesa-lib

In this case, should I generate a xorg.conf then use it ?

Regards,

Kristof
Comment 7 Alex Deucher 2015-05-18 21:30:51 UTC
All it needs to contain is the following.

Section "Device"
    Identifier "Radeon"
    Driver "radeon"
    Option "NoAccel" "true"
EndSection
Comment 8 kristof 2015-05-19 09:00:11 UTC
(In reply to Alex Deucher from comment #7)
> All it needs to contain is the following.
> 
> Section "Device"
>     Identifier "Radeon"
>     Driver "radeon"
>     Option "NoAccel" "true"
> EndSection

Hi ALex,

Following your advise, I've putted it in a xorg.conf
Consequence : system disabled Gallium then returns on Software Rasterizer methode.
It results that it improves perf, glxgears (without vblank=0 option set) run now 102 fps (60 before)

Regards,

Kristof
Comment 9 kristof 2015-05-21 06:55:22 UTC
Hi Alex,

Workaround progress : delete xorg.conf; Why ?
According radeon man page : http://manpages.debian.org/cgi-bin/man.cgi?sektion=4&query=radeon&apropos=0&manpath=sid&locale=en
Option "AccelMethod" "string"
              Chooses  between  available  acceleration  architectures.  Valid
              values are EXA (for pre-TAHITI GPUs) and  glamor  (for  R300  or
              higher). The default is glamor as of TAHITI, otherwise EXA.

By checking my Xorg.0.log, I realized that "EXA" submodule is loaded instead "glamor" ... (noticed in my workaround firmware non-free installed + mesalib not patched)
Since my gpu is a R300 (RV380-X600) family submodule should be "glamor", right or mistake from me due to misunderstanding something ?

Regards and have a nice day,

Kristof
Comment 10 Alex Deucher 2015-05-21 13:13:24 UTC
(In reply to kristof from comment #9)
> By checking my Xorg.0.log, I realized that "EXA" submodule is loaded instead
> "glamor" ... (noticed in my workaround firmware non-free installed + mesalib
> not patched)
> Since my gpu is a R300 (RV380-X600) family submodule should be "glamor",
> right or mistake from me due to misunderstanding something ?

All pre-SI cards use EXA by default.  I'm not even sure the r300 cards are capable of using glamor anymore.
Comment 11 herminio.hernandezjr 2015-08-23 19:14:58 UTC
I have installed the test suite piglit on my iBook G4 and have started running test my Radeon GPU (r300). I am willing to share the tests results if anyone thinks it will help with this bug.
Comment 12 Alex Perez 2015-08-26 20:15:51 UTC
I can confirm that the driver fails with no error here as well, on an e5500-based ppc64 system. Everything works (with acceleration) when depth is set to 16 bits. I know a handful of other people who have had the same problem on 32-bit ppc hardware (modern, non-macppc), so we can be reasonably confident that this is a broad ppc-specific issue (possibly be/byte-swapping related?)
Comment 13 Mathieu Malaterre 2016-04-28 09:42:10 UTC
I believe that all r600 issues have now been solved (thx Oded!). The remaining of the comments relates to r300 (and thus is a dup of #71789). I believe this bug can be closed.
Comment 14 Michel Dänzer 2016-04-30 06:14:38 UTC
Resolving per comment 13, thanks for the reminder.


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