AM335x SDK 6.0.0.0 and Graphics SDK 4.10.0.1

There is more amiss:

root@am335x-evm:~# /usr/local/bin/pvrsrvctl
-sh: /usr/local/bin/pvrsrvctl: No such file or directory
root@am335x-evm:~#

root@am335x-evm:~# strace /usr/local/bin/pvrsrvctl
execve("/usr/local/bin/pvrsrvctl", ["/usr/local/bin/pvrsrvctl"], [/* 17 vars */]) = -1 ENOENT (No such file or directory)
write(2, "strace: exec: No such file or di"..., 40strace: exec: No such file or directory
) = 40
exit_group(1)                           = ?
+++ exited with 1 +++
root@am335x-evm:~#

root@am335x-evm:~# ls -la /usr/local/bin/pvrsrvctl
-rwxr-xr-x    1 root     root          5112 Jun 25 23:11 /usr/local/bin/pvrsrvctl

More info:

root@am335x-evm:~# lsmod
Module                  Size  Used by
bufferclass_ti          5060  0
omaplfb                10943  0
pvrsrvkm              170290  2 omaplfb,bufferclass_ti
g_mass_storage         37599  0
wl12xx_sdio             3986  0
root@am335x-evm:~# cat /proc/pvr/version
Version SGX_DDK_Linux_CustomerTI sgxddk 1.10@2359475 (release) /home/lf/ti/Graphics_SDK_4_10_00_01/GFX_Linux_KM
System Version String: None
root@am335x-evm:~# cat /proc/pvr/nodes
Registered nodes
Addr     Type     Class    Index Ref pvDev     Size Res
cf3ee7c0 ?9       buffer      2   1  ce511d00   28    (null)
cf3ee8c0 ?9       buffer      2   1  ce511f00   28    (null)
cf3ee9c0 ?9       buffer      2   1  ce427240   28    (null)
cf3eeac0 ?9       buffer      2   1  ce427440   28    (null)
cf3eebc0 ?9       buffer      2   1  ce427640   28    (null)
cf3eecc0 ?9       buffer      2   1  ce427840   28    (null)
cf3eedc0 ?9       buffer      2   1  ce427a40   28    (null)
cf3eeec0 ?9       buffer      2   1  ce427c40   28    (null)
cf7081c0 ?9       buffer      2   1  ce427e40   28    (null)
cf7086c0 ?9       buffer      2   1  cf75e180   28    (null)
cf35c080 ?9       display     1   1  cf2adbc0   56    (null)
cf7082c0 ?7       3D          0   1  cf3d9000    0  ce0c5a80
root@am335x-evm:~#

What is happening here?

Hi,

You seem to have missed running 335x-demo script as mentioned in user guide -

http://processors.wiki.ti.com/index.php/Graphics_SDK_Quick_installation_and_user_guide#Step_2_:_soc_demo_script_verification

This will take care of installing pvrsrvctl & other required graphics librraries, also insert the SGX driver kernel modules(pvrsrvkm, omaplfb).

You need to follow 3 steps below-

//On your linux PC/Build machine

Build command - make BUILD=release OMAPES=8.x PM_RUNTIME=1 all_km (assuming you have the kernel sources with SGX hwmod patch.

You can refer to http://e2e.ti.com/support/arm/sitara_arm/f/791/p/275648/964119.aspx

http://e2e.ti.com/support/arm/sitara_arm/f/791/p/283259/989629.aspx

Install command - sudo make BUILD=release OMAPES=8.x PM_RUNTIME=1 install

Once you have done build & install commands as above, now on EVM Linux command prompt when it boots up, issue below command -

/etc/init.d/335x-demo

Thanks,

Prathap.

Hello Prathap,

I've ran the /etc/init.d/335x-demo script, but it also causes an error when launched (by calling rc.pvr) and it does not install the new bufferclass_ti.ko module.

Here's what I did:

create SDcard from the ti-sdk-am335x-06.00.00.00 using the prebuilt images

boot EVM, by default the following modules are loaded:
root@am335x-evm:~# lsmod
Module                  Size  Used by
g_mass_storage         37599  0
bufferclass_ti          5060  0
omaplfb                11075  0
pvrsrvkm              170641  2 omaplfb,bufferclass_ti
wl12xx_sdio             3986  0

The modules are located here:
/lib/modules/3.2.0/kernel/drivers/gpu/pvr/pvrsrvkm.ko
/lib/modules/3.2.0/kernel/drivers/gpu/pvr/omaplfb.ko
/lib/modules/3.2.0/kernel/drivers/gpu/pvr/bufferclass_ti.ko


Back on my build host, building the Graphics SDK 4.10.0.1:
Rules.mk:
################# FIELDS MODIFIABLE BY THE USER ###############################
############### All the fields below are MANDATORY ############################

#By default all below variables have been initialized with equivalent AMSDK variables
# Change them to appropriate paths as per your machine/build environment paths.
# Set home area (ex /home/user/)
HOME=/home/lf/ti/

# Set Toolchain path (ex /home/user/toolchain/arago-2011.09/armv7a)
CSTOOL_DIR=/home/lf/ti/ti-sdk-am335x-06.00.00.00-evm/linux-devkit/sysroots/i686-arago-linux/usr/bin/

# Set Tool chain prefix (ex arm-arago-linux-gnueabi- )
CSTOOL_PREFIX=arm-linux-gnueabihf-

# Set kernel installation path ( ex /home/user/linux-04.00.01.13 )
KERNEL_INSTALL_DIR=/home/lf/ti/ti-sdk-am335x-06.00.00.00-evm/board-support/linux-3.2.0-psp04.06.00.11/

# Set Target filesystem path ( ex /home/user/targetfs )
TARGETFS_INSTALL_DIR=/media/rootfs

# Set installation folder
GRAPHICS_INSTALL_DIR=$(HOME)/Graphics_SDK_4_10_00_01

############### All the fields below are OPTIONAL ############################
############### BEST SUGGESTED TO LEAVE THE BELOW AS IS ############################

# Below is just an optional define given only to enable users who want to pass additional compiler/link flags.
# Only update the below options if you exactly know about the additional flag to be added & also are sure that its supported with your toolchain.
# Otherwise its best suggested to leave the below as is ie empty

# Add additional Compiler flags below only if required (Please read above comments)
EXTRA_CFLAGS?=
# Add additional Linker flags below only if required (Please read above comments)
EXTRA_LFLAGS?=

export EXTRA_CFLAGS
export EXTRA_LFLAGS

Note: I haven't changed the CFLAGS.

make BUILD=release OMAPES=8.x  PM_RUNTIME=1 all
[wait]
sudo make BUILD=release OMAPES=8.x  PM_RUNTIME=1 install

in the ti-SDK, build kernel and copy uImage to SDcard too.

Booting the EVM again, to run the /etc/init.d/335x-demo script:
root@am335x-evm:~#  /etc/init.d/335x-demo
0x10205
release8.x
installing 8.x SGX release user libraries

Installing PowerVR Consumer/Embedded DDK 'sgxddk_1.10@2359475' on target

File system installation root is /

Nothing to un-install.
boot script rc.pvr -> /etc/init.d/rc.pvr
kernel module pvrsrvkm.ko -> /lib/modules/3.2.0/extra/pvrsrvkm.ko
kernel module omaplfb.ko -> /lib/modules/3.2.0/extra/omaplfb.ko
shared library libGLES_CM.so -> /usr/lib/libGLES_CM.so.1.10.2359475
shared library libusc.so -> /usr/lib/libusc.so.1.10.2359475
shared library libGLESv2.so -> /usr/lib/libGLESv2.so.1.10.2359475
shared library libglslcompiler.so -> /usr/lib/libglslcompiler.so.1.10.2359475
shared library libIMGegl.so -> /usr/lib/libIMGegl.so.1.10.2359475
shared library libEGL.so -> /usr/lib/libEGL.so.1.10.2359475
shared library libpvr2d.so -> /usr/lib/libpvr2d.so.1.10.2359475
shared library libpvrPVR2D_BLITWSEGL.so -> /usr/lib/libpvrPVR2D_BLITWSEGL.so.1.10.2359475
shared library libpvrPVR2D_FLIPWSEGL.so -> /usr/lib/libpvrPVR2D_FLIPWSEGL.so.1.10.2359475
shared library libpvrPVR2D_FRONTWSEGL.so -> /usr/lib/libpvrPVR2D_FRONTWSEGL.so.1.10.2359475
shared library libpvrPVR2D_LINUXFBWSEGL.so -> /usr/lib/libpvrPVR2D_LINUXFBWSEGL.so.1.10.2359475
shared library libsrv_um.so -> /usr/lib/libsrv_um.so.1.10.2359475
shared library libsrv_init.so -> /usr/lib/libsrv_init.so.1.10.2359475
shared library libPVRScopeServices.so -> /usr/lib/libPVRScopeServices.so.1.10.2359475
binary pvrsrvctl -> /usr/local/bin/pvrsrvctl
binary sgx_init_test -> /usr/local/bin/sgx_init_test
binary services_test -> /usr/local/bin/services_test
binary sgx_blit_test -> /usr/local/bin/sgx_blit_test
binary sgx_clipblit_test -> /usr/local/bin/sgx_clipblit_test
binary sgx_flip_test -> /usr/local/bin/sgx_flip_test
binary sgx_render_flip_test -> /usr/local/bin/sgx_render_flip_test
binary pvr2d_test -> /usr/local/bin/pvr2d_test
shader glsltest1_vertshader.txt -> /usr/local/bin/glsltest1_vertshader.txt
shader glsltest1_fragshaderA.txt -> /usr/local/bin/glsltest1_fragshaderA.txt
shader glsltest1_fragshaderB.txt -> /usr/local/bin/glsltest1_fragshaderB.txt

Installation complete!
You may now reboot your target.

./rc.pvr: line 34: /usr/local/bin/pvrsrvctl: No such file or directory
root@am335x-evm:~#

which terminates with a remakable error: /usr/local/bin/pvrsrvctl: No such file or directory
The binary is present:
root@am335x-evm:~# ls -la /usr/local/bin/pvrsrvctl
-rwxr-xr-x    1 root     root          5112 Jun 25 23:13 /usr/local/bin/pvrsrvctl
but launching it will fail:
root@am335x-evm:~# /usr/local/bin/pvrsrvctl
-sh: /usr/local/bin/pvrsrvctl: No such file or directory
root@am335x-evm:~#

Reboot EVM, the PVR does not start:
Starting PVR
[   16.890045] pvrsrvkm: Unknown parameter `/lib/modules/3.2.0/extra/pvrsrvkm.ko'
Error: could not insert module /lib/modules/3.2.0/kernel/drivers/gpu/pvr/pvrsrvkm.ko: Unknown symbol in module
Could not find pvrsrvkm driver

This comes from the /etc/init.d/pvr-init, sgxprepare:
sgxprepare () {
    echo Starting PVR
    insmod $(busybox find /lib/modules/$(uname -r) -name "pvrsrvkm.ko")
Caused by a find that reports two pvrsrvkm.ko module: the one from the EVM rootfs and the other from the graphics SDK:
root@am335x-evm:~# find /lib/modules/3.2.0/ -name pvrsrvkm.ko  
/lib/modules/3.2.0/kernel/drivers/gpu/pvr/pvrsrvkm.ko
/lib/modules/3.2.0/extra/pvrsrvkm.ko
root@am335x-evm:~#

Why is the new bufferclass_ti.ko module build by the graphics SDK but not installed?
root@am335x-evm:~# ls -la /lib/modules/3.2.0/extra/
drwxr-sr-x    2 root     root          4096 Jun 25 23:13 .
drwxr-sr-x    5 root     root          4096 Jun 25 23:13 ..
-rw-r--r--    1 root     root         32385 Jun 25 23:13 omaplfb.ko
-rw-r--r--    1 root     root       2596328 Jun 25 23:13 pvrsrvkm.ko
root@am335x-evm:~#

My fix is rename the following three kernel modules:
/lib/modules/3.2.0/kernel/drivers/gpu/pvr/pvrsrvkm.ko
/lib/modules/3.2.0/kernel/drivers/gpu/pvr/omaplfb.ko
/lib/modules/3.2.0/kernel/drivers/gpu/pvr/bufferclass_ti.ko

Also remove the modules in .../extra/

and copy the new kernel module to the directory:
root@am335x-evm:~# cp /opt/gfxlibraries/gfx_rel_es8.x/*.ko /lib/modules/3.2.0/kernel/drivers/gpu/pvr/

Reboot the EVM.

PVR starts:
Starting thttpd.
Starting PVR
Starting Lighttpd Web Server: lighttpd.

modules are loaded:
am335x-evm login: root
root@am335x-evm:~# lsmod
Module                  Size  Used by
g_mass_storage         37599  0
bufferclass_ti          5060  0
omaplfb                10943  0
pvrsrvkm              170290  2 omaplfb,bufferclass_ti
wl12xx_sdio             3986  0
root@am335x-evm:~#

looks ok, but I still can't launch any demo

Why?

Best regards,

Lo2

Hi,

I  just built the graphics sdk successfully and thought this link might be of use to you.

http://processors.wiki.ti.com/index.php/SGXDbg

Also try setting your targetNFS directory as target installation directory and then later create sdcard image with targetNFS as root directory.

I think kernel image and sdcard has to be done anew after graphics sdk build. I think this makes sure that usermode and kernel binaries has no mismatches.

I get message bufferclass_ti is not loaded but ogles demos work fine and also qt5 with eglfs works fine.

Ram

Hi Ram,

I've mentioned the link in my first post already, there's also the output of the check script.

I've got the impression that dlopen fails, and that's the reason why the bninaries don't run.

Which compiler / tool chain do you use?

Could you please post the output of readelf -A of libEGL.so and one of the demos?

If one follows the wiki instructions you will end up with non working binaries.

Regards,

Lo2

Hi Prathap,

thanks for the link, that was exactly what I needed: the closed source libraries in an armhf (VFP_args) version!

The latest SDK uses the armhf toolchain too, btw.

Regards,

Lo2

Hi Prathap,

I am getting the below error when I tried running the when I tried running one of the demos.

./OGLES2Coverflow
Can't open remote control input device (/dev/ttyS1)
Exit message has been set to: "PVRShell: Unable to initialise EGL
".
PVRShell: EGL Error (EGL_BAD_ALLOC)
InitAPI failed!
PVRShell: Unable to initialise EGL

Please advise.