c6accel on beagleboard (cmem error)

chuu

Other Parts Discussed in Thread: OMAP3530

Hi,

I'm trying to utilize DSP inside OMAP3530 on beagleboard for general signal processing tasks.I download DVSDK (4.00.00.22). First compile dsplink module and sample codes, and be able to run on beagleboard (loopapp). Then I compile c6accel modules and sample codes (using the Makefile under the root directory of DVSDK), and loading them using following instructions:

# insmod cmemk.ko

# modprobe cmemk phys_start=0x86300000 phys_end=0x87200000 pools=20x4096 allowOverlap=1

# insmod dsplinkk.ko

# insmod lpm_omap3530.ko

# mknod /dev/dsplink c `awk "\\$2==\"dsplink\" {print \\$1}" /proc/devices` 0

Then when I execute "./c6accel_app" on beagleboard, I got the following error:

******************************************************************************
Sample application for testing kernels in C6Accel started.
******************************************************************************
CMEM Error: getBlock: Failed to retrieve memory block bounds for block 0 from driver: -1.
CMEM Error: allocHeap: ioctl CMEM_IOCALLOCHEAPCACHED failed: -1
******************************************************************************
All tests done.
******************************************************************************

I'm new to beagleboard and TI DSP tools, and have no idea how to proceed. Can anyone tell me what's wrong inside?

Thanks,

chuu

over 14 years ago

0 chuu over 14 years ago

Prodigy 125 points

It seems that "" are required for cmem to get the correct memory address setting. (reference from http://e2e.ti.com/support/embedded/f/356/p/83873/290647.aspx)

Now I use the command

insmod cmemk.ko "phys_start=0x8c900000 phys_end=0x8d900000 pools=20x4096 allowOverlap=1"

and the demesg shows

<4>CMEM Range Overlaps Kernel Physical - allowing overlap
<4>CMEM phys_start (0x8c900000) overlaps kernel (0x80000000 -> 0x90000000)
<3>CMEMK Error: Failed to request_mem_region(0x8c900000, 16777216)

How should I know the correct address (available memory range) to use?

0 chuu over 14 years ago in reply to chuu

Prodigy 125 points

I change to

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

Now there is no error.

cat /proc/cmem:

Block 0: Pool 0: 20 bufs size 4096 (4096 requested)

Pool 0 busy bufs:

Pool 0 free bufs:
id 0: phys addr 0x98fff000
id 1: phys addr 0x98ffe000
id 2: phys addr 0x98ffd000
id 3: phys addr 0x98ffc000
id 4: phys addr 0x98ffb000
id 5: phys addr 0x98ffa000
id 6: phys addr 0x98ff9000
id 7: phys addr 0x98ff8000
id 8: phys addr 0x98ff7000
id 9: phys addr 0x98ff6000
id 10: phys addr 0x98ff5000
id 11: phys addr 0x98ff4000
id 12: phys addr 0x98ff3000
id 13: phys addr 0x98ff2000
id 14: phys addr 0x98ff1000
id 15: phys addr 0x98ff0000
id 16: phys addr 0x98fef000
id 17: phys addr 0x98fee000
id 18: phys addr 0x98fed000
id 19: phys addr 0x98fec000

But when execute c6accel_app (sample code from DVSDK), the program just hang and nothing generated......(i.e. no benchmarking.txt)
am I setting correctly??

0 Rahul Prabhu over 14 years ago in reply to chuu

TI__Guru** 116170 points

Chuu,

If you are using any other memory map for a OMAP3530 device than specified in the C6accel unit server you need to rebuild the server with your memory map before you run the code. The memory map inside C6Accel can be found in the server.tcf file under $(C6ACCEL_INSTALL_DIR)/soc/packages/ti/unit_servers/omap3530. Please check if you are allocating your CMEM accordingly. Also can you export CE_DEBUG =2 and send us the error log for further debugging.

Regards,

Rahul