[Bug 87856] Driver load fails with no error on ppc64 host

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=87856

--- Comment #4 from kristof <cdenatale3@gmail.com> ---
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

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