Can't insmod ti81xxfb,ko

Eric Mao

Hi all

I use dvrrdk4.1 . dm8168_evm

when type ./load.sh, the console printf

ti81xxfb ti81xxfb: failed to allocate framebuffer
1ti81xxfb ti81xxfb: failed to allocate fb memory.
[mti81xxfb: probe of ti81xxfb failed with error -12

over 11 years ago

0 Brijesh Jadav over 11 years ago

TI__Guru**** 477995 points

You will need to provide enough size for vram in bootargs.

Regars,

Brijesh

0 Eric Mao over 11 years ago in reply to Brijesh Jadav

Genius 4330 points

setenv bootargs 'mem=256M console=ttyO2,115200n8 rootdelay=3 root=/dev/nfs rw nfsroot=192.168.1.100:/home/mxf/target/rfs_816x ip=192.168.1.188:192.168.1.100:192.168.1.1:255.255.0.0::eth0:off vram=20M notifyk.vpssm3_sva=0xBEE00000 ddr_mem=1024M'

0 Brijesh Jadav over 11 years ago in reply to Eric Mao

TI__Guru**** 477995 points

oh, vram has been allocated 20M, so it should be sufficient for a single frame buffer, but i am not sure how many fb pipeline are being used. can you do cat load.sh and share the log?

Regards,

Brijesh

0 Eric Mao over 11 years ago in reply to Brijesh Jadav

Genius 4330 points

root@dm816x:/opt/dvr_rdk/ti816x# cat load.sh

. ./parseEnv.sh
. ./env_${ENV_DDR_MEM}_${ENV_LINUX_MEM}.sh
cd ./scripts/

./load_vpss.sh
./load_video.sh
./load_c6xdsp.sh
./osa_kermod_load.sh

./wait_cmd.sh s m3vpss ${REMOTE_DEBUG_ADDR}
./wait_cmd.sh s m3video ${REMOTE_DEBUG_ADDR}
./wait_cmd.sh s c6xdsp ${REMOTE_DEBUG_ADDR}

cd -

# load module fb
insmod ./kermod/vpss.ko i2c_mode=1 sbufaddr=${HDVPSS_SHARED_MEM}
insmod ./kermod/ti81xxfb.ko vram=0:8M,1:8M,2:8M
insmod ./kermod/ti81xxhdmi.ko
insmod ./kermod/gpiorw.ko
sleep 1

#
# enable range compression in HDMI 0..255 to 16..235.
# This is needed for consumer HDTVs
#
./bin/mem_rdwr.out --wr 0x46c00524 2

0 Brijesh Jadav over 11 years ago in reply to Eric Mao

TI__Guru**** 477995 points

Hi Eric,

From the below line, Fbdev driver requires 24MB space in vram, but in your bootargs, you are reserving only 20MB, which is why it is failing to insert. Can you increase memory in your bootargs or decrease memory for one of the fb device by 4MB?

insmod ./kermod/ti81xxfb.ko vram=0:8M,1:8M,2:8M

Regards,

Brijesh

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0 Eric Mao over 11 years ago in reply to Brijesh Jadav

Genius 4330 points

I use insmod ./kermod/ti81xxfb.ko vram=0:8M,1:8M,2:4M now the ti81xxfb.ko can insmod correct.

0 Brijesh Jadav over 11 years ago in reply to Eric Mao

TI__Guru**** 477995 points

Hi Eric,

Now Fbdev instance 2 may not work, since less memory is allocated for it. So if you need to fb2, you will require to increate memory in bootargs.

Regards,

Brijehs

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Can't insmod ti81xxfb,ko