I got it work! Kind of a stupid problem but when comparing the config
between RCN's 3.12 and 3.13 kernel, I realized that CONFIG_FB_DA8XX was no
longer set. SGX is now working, when I start the PVR service I still get
one set of symbol errors.
/opt/gfxlibraries/gfx_rel_es8.x # /etc/init.d/rc.pvr start
[ 77.420860] omaplfb: Unknown symbol register_vsync_cb (err 0)
[ 77.427111] omaplfb: Unknown symbol unregister_vsync_cb (err 0)
Loaded PowerVR consumer services.
/opt/gfxlibraries/gfx_rel_es8.x # lsmod
omaplfb 12126 0 - Live 0xbf048000 (O)
da8xx_fb 11448 1 omaplfb, Live 0xbf041000
pvrsrvkm 179069 1 omaplfb, Live 0xbf00 (O)
All the demos appear to run fine.
On Friday, March 28, 2014 12:41:51 PM UTC-6, Brett wrote:
I am having trouble getting the SGX libs to work properly with kernel 3.13
from https://github.com/RobertCNelson/linux-dev. I did have to modify
sgx_build_modules.sh to enable FBDEV, my requirements are no X. The first
sign of trouble is during the build of the SGX libs I am seeing this
warning:
Building modules, stage 2.
MODPOST 3 modules
WARNING: unregister_vsync_cb
[/home/fse/Documents/BBB/linux-dev/ignore/ti-sdk-pvr/Graphics_SDK/GFX_Linux_KM/services4/3rdparty/dc_ti335x_linux/omaplfb.ko]
undefined!
WARNING: register_vsync_cb
[/home/fse/Documents/BBB/linux-dev/ignore/ti-sdk-pvr/Graphics_SDK/GFX_Linux_KM/services4/3rdparty/dc_ti335x_linux/omaplfb.ko]
undefined!
This however does not stop the build. After installing the kernel/modules
then booting up the BBB I get the following error when trying to kick off
the PVR service:
# /etc/init.d/rc.pvr start
[ 137.596132] omaplfb: Unknown symbol register_vsync_cb (err 0)
[ 137.602219] omaplfb: Unknown symbol unregister_vsync_cb (err 0)
[ 138.046878] omaplfb: Unknown symbol register_vsync_cb (err 0)
[ 138.053136] omaplfb: Unknown symbol unregister_vsync_cb (err 0)
modprobe: 'extra/omaplfb.ko': unknown symbol in module or invalid parameter
This problem came up after upgrading from kernel 3.12 to 3.13. I can see
that register_vsync_cb and unregister_vsync_cb are defined in da8xx-fb.c.
Maybe this is a linking problem? Has anyone run into this problem before?
Any ideas as to what changed between 3.12 and 3.13?
Thanks!
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