run c6runapp/hello_world_dsp

yi luo68719

Other Parts Discussed in Thread: DM3730, OMAP3530

when i run hello_world_dsp on dm3730, i came cross below question:

root@dm37x-evm:/usr/share/ti/c6run-apps/examples# ./c6runapp/hello_world/hello_world_dsp
[ 345.231964] CMEMK Error: ioctl: failed to allocate heap buffer of size 0x4900
000
CMEM Error: allocHeap: ioctl CMEM_IOCALLOCHEAPCACHED failed: -1
CMEM_alloc() failed!
Memory allocation for DSP image has failed.
C6RUN_IPC_create() failed!

cat loadmodules.sh:

IPC=dsplink
DSP_REGION_START_ADDR="0x84F00000"
DSP_REGION_END_ADDR="0x85900000"

root@dm37x-evm:/usr/share/ti/c6run-apps# lsmod
Module                  Size Used by
sdmak                   3740 0
lpm_omap3530            6257 0
dsplinkk              123514 1 lpm_omap3530
cmemk                  21346 0
root@dm37x-evm:/usr/share/ti/c6run-apps#

insmod dspxx module:

   14.548828] CMEMK module: built on Nov 16 2012 at 19:50:47
[   14.554534]   Reference Linux version 2.6.37
[   14.558990]   File /home/luoyi/mtp3730/android/external/ti-dsp/ti-dvsdk_dm3730-evm_04_03_00_06/linuxutils_2_26_02_05/packages/ti/sdo/linuxutils/cmem/src/module/cmemk.c
[   14.574829] CMEM Range Overlaps Kernel Physical - allowing overlap
[   14.581298] CMEM phys_start (0x84f00000) overlaps kernel (0x80000000 -> 0x9a400000)
[   14.589691] allocated heap buffer 0xe3000000 of size 0xa00000
[   14.595703] heap fallback enabled - will try heap if pool buffer is not available
[   14.603515] cmemk initialized
[   14.633941] DSPLINK Module (1.65.01.05_eng) created on Date: Oct 4 2012 Time: 14:24:17
[   14.676940] SDMAK module: built on Nov 16 2012 at 19:50:48
[   14.682708]   Reference Linux version 2.6.37
[   14.687164]   File /home/luoyi/mtp3730/android/external/ti-dsp/ti-dvsdk_dm3730-evm_04_03_00_06/linuxutils_2_26_02_05/packages/ti/sdo/linuxutils/sdma/src/module/sdmak.c

Best Regards !

Lawyee

over 13 years ago

0 Cvetolin Shulev-XID over 13 years ago

TI__Guru 65405 points

Hi Lawyee,

Are you using DVSDK sources without any changes?

Tsvetolin Shulev

0 yi luo68719 over 13 years ago in reply to Cvetolin Shulev-XID

Intellectual 440 points

_{Dear Tsvetolin:}

_{i use DVSDK ti-dvsdk_dm3730-evm_04_03_00_06 without any change in TI_Android_Gingerbread_DM3730 BSP.}

Best Regards!

Lawyee.

0 Sezai Sablak over 12 years ago in reply to yi luo68719

Prodigy 75 points

Hi Tsvetolin,

Have you resolved this issue? I have exactly same problem on my new evm 3730 board.

If you resolved it, could you please how to do it?

Thanks,

-Steve

0 Cvetolin Shulev-XID over 12 years ago in reply to Sezai Sablak

TI__Guru 65405 points

Hi Steve,

The error message which observe:

CMEMK Error: ioctl: failed to allocate heap buffer of size 0x4900000

is due to unsuccessful memory allocation in the cmemk.c file.

The problem probably dues to overlapped memory of the cmemk and the kernels. Pay attention on the following row:

[ 14.581298] CMEM phys_start (0x84f00000) overlaps kernel (0x80000000 -> 0x9a400000)

One possible decision is to change the start address of the kernel in the boot config. The other one is to change the start address on the CMEM.

For more details you can look at the links to discussions about similar issues:

http://e2e.ti.com/support/embedded/multimedia_software_codecs/f/356/t/83873.aspx

http://e2e.ti.com/support/embedded/linux/f/354/t/136375.aspx

http://e2e.ti.com/support/embedded/multimedia_software_codecs/f/356/t/179307.aspx

http://e2e.ti.com/support/embedded/linux/f/354/p/58020/211981.aspx#211981

Tsvetolin Shulev

0 Sezai Sablak over 12 years ago in reply to Cvetolin Shulev-XID

Prodigy 75 points

Hi Tsvetolin,

While I am trying for some solution to fix this problem, it gives following error below

root@dm37x-evm:/usr/share/ti/c6run-apps/examples/c6runapp/hello_world# ./hello_w
orld_dsp
CMEM Error: init: Failed to open /dev/cmem: 'No such file or directory'
CMEM_init() failed!
Segmentation fault

root@dm37x-evm:/usr/share/ti/c6run-apps# ./loadmodules.sh
insmod: error inserting './cmemk.ko': -1 Bad address
insmod: error inserting './dsplinkk.ko': -1 File exists
insmod: error inserting './lpm_omap3530.ko': -1 File exists

root@dm37x-evm:/usr/share/ti/c6run-apps# lsmod
Module                  Size Used by
lpm_omap3530            6345 0
dsplinkk              123546 1 lpm_omap3530
sdmak                   3795 0
bufferclass_ti          4814 0
omaplfb                 8210 0
pvrsrvkm              128882 2 bufferclass_ti,omaplfb

Could you please help me how to fix this cmem problem, I couldn't run any dsp codes.

Thanks,

-Sezai

0 Sezai Sablak over 12 years ago in reply to Sezai Sablak

Prodigy 75 points

I fixed this problem with unloadmodules and loadmodules. Now, I assigned the different range of memoryfor CMEM, I tried several different ranges but it is happy with following range while insmod to cmemk.ko.

insmod cmemk.ko "phys_start=0x90000000 phys_end=0x99000000 pools=20x4096"

it doesn't complain but when I try to run hello_world_dsp, it gives segmentation fault as below

root@dm37x-evm:/usr/share/ti/c6run-apps/examples/c6runapp/hello_world# ./hello_world_dsp
Segmentation fault

root@dm37x-evm:/usr/share/ti/c6run-apps/examples/c6runapp/hello_world#

How could I fix this problem?

Thank you for your help,

-Steve

Processors

Processors forum

run c6runapp/hello_world_dsp