Linux/TDA2: TDA2xx/linux CMEM Error

Hi Yordan,

I follow the documentation，
“In the above wiki, refer to the ‘Build Environment Setup’ and ‘Building Test Binaries’ sections to set up the build environment to build cmem user and kernel modules.”

I follow the link processors.wiki.ti.com/.../CMEM_Overview ，
and i have down the linuxutils_4_00_01_08.tar.gz .
and i cd linuxutils_4_00_01_08/src/cmem/module；
and make .

An error occurred：
Making module release...
make -C /db/atree/rt/git/linux-davinci M=`pwd` ARCH= CROSS_COMPILE=/cs/arm/arm-2010q1/bin/arm-none-linux-gnueabi- \
EXTRA_CFLAGS="-I /home/hancan/linuxutils_4_00_01_08/include" modules
make: *** /db/atree/rt/git/linux-davinci: No such file or directory. Stop.
make: *** [release] Error 2

Is my procedure correct?
thanks，
Xie Baojian

Hi Yordan,

I have done the chapter 2.4.2.1.1, and what should i do to export KERNEL_INSTALL_DIR variable point to my kernel tree?

Regards,
Xie Baojian

Hi Yordan,

I have done export KERNEL_INSTALL_DIR="$INSTALL_DIR/ti_components/os_tools/linux/kernel".
and i cd /home/hancan/linuxutils_4_00_01_08/src/cmem/module to run make;
But it still can not compile success. the info is:

hancan@hancan-virtual-machine:~/linuxutils_4_00_01_08/src/cmem/module$ make
Making module release...
make -C /home/hancan/PROCESSOR_SDK_VISION_03_02_00_00/ti_components/os_tools/linux/kernel M=`pwd` ARCH= CROSS_COMPILE=/cs/arm/arm-2010q1/bin/arm-none-linux-gnueabi- \
EXTRA_CFLAGS="-I /home/hancan/linuxutils_4_00_01_08/include" modules
make[1]: Entering directory `/home/hancan/PROCESSOR_SDK_VISION_03_02_00_00/ti_components/os_tools/linux/kernel'
make[1]: *** No rule to make target `modules'. Stop.
make[1]: Leaving directory `/home/hancan/PROCESSOR_SDK_VISION_03_02_00_00/ti_components/os_tools/linux/kernel'
make: *** [release] Error 2

Do I have other needs to do?

Regards,
Xie Baojian

Hi Yordan,

I have done export KERNEL_INSTALL_DIR="$INSTALL_DIR/ti_components/os_tools/linux/kernel/omap".
the info is:
hancan@hancan-virtual-machine:~/linuxutils_4_00_01_08/src/cmem/module$ make
Making module release...
make -C /home/hancan/PROCESSOR_SDK_VISION_03_02_00_00/ti_components/os_tools/linux/kernel/omap M=`pwd` ARCH=arm CROSS_COMPILE=/cs/arm/arm-2010q1/bin/arm-none-linux-gnueabi- \
EXTRA_CFLAGS="-I /home/hancan/linuxutils_4_00_01_08/include" modules
make[1]: /cs/arm/arm-2010q1/bin/arm-none-linux-gnueabi-gcc: Command not found
make[1]: Entering directory `/home/hancan/PROCESSOR_SDK_VISION_03_02_00_00/ti_components/os_tools/linux/kernel/omap'
CC [M] /home/hancan/linuxutils_4_00_01_08/src/cmem/module/cmemk.o
/bin/sh: 1: /cs/arm/arm-2010q1/bin/arm-none-linux-gnueabi-gcc: not found
make[2]: *** [/home/hancan/linuxutils_4_00_01_08/src/cmem/module/cmemk.o] Error 127
make[1]: *** [_module_/home/hancan/linuxutils_4_00_01_08/src/cmem/module] Error 2
make[1]: Leaving directory `/home/hancan/PROCESSOR_SDK_VISION_03_02_00_00/ti_components/os_tools/linux/kernel/omap'
make: *** [release] Error 2

Regards,
Xie Baojian

Hi Yordan,

I have try that, but it seems i do not have /arch//Makefile file.
the info is :

hancan@hancan-virtual-machine:~/linuxutils_4_00_01_08/src/cmem/module$ make
Making module release...
make -C /home/hancan/PROCESSOR_SDK_VISION_03_02_00_00/ti_components/os_tools/linux/kernel/omap M=`pwd` ARCH= CROSS_COMPILE=arm-linux-gnueabihf- \
EXTRA_CFLAGS="-I /home/hancan/linuxutils_4_00_01_08/include" modules
make[1]: Entering directory `/home/hancan/PROCESSOR_SDK_VISION_03_02_00_00/ti_components/os_tools/linux/kernel/omap'
Makefile:617: arch//Makefile: No such file or directory
make[1]: *** No rule to make target `arch//Makefile'. Stop.
make[1]: Leaving directory `/home/hancan/PROCESSOR_SDK_VISION_03_02_00_00/ti_components/os_tools/linux/kernel/omap'
make: *** [release] Error 2

Thanks,
Xie Baojian

Hi Yordan,

I have the last question. the compile error info is:

CC [M] /home/hancan/linuxutils_4_00_01_08/src/cmem/module/cmemk.o
/home/hancan/linuxutils_4_00_01_08/src/cmem/module/cmemk.c: In function 'cmem_seq_show':
/home/hancan/linuxutils_4_00_01_08/src/cmem/module/cmemk.c:988:5: error: void value not ignored as it ought to be
rv = seq_printf(s, "id %d: phys addr %#llx\n", entry->id,
^
/home/hancan/linuxutils_4_00_01_08/src/cmem/module/cmemk.c: In function 'ioctl':
/home/hancan/linuxutils_4_00_01_08/src/cmem/module/cmemk.c:1425:8: error: implicit declaration of function 'dmac_map_area' [-Werror=implicit-function-declaration]
dmac_map_area(virtp, size, DMA_FROM_DEVICE);
^

When I commented the function seq_printf and dmac_map_area, it can compile successfully. Is the version I downloaded wrong? Or other issues. My version is linuxutils_4_00_01_08.

Regards,
Xie Baojian

HI Yordan,

I've done above before, Another method, Can you help me compile this source code in your linux environment?

and Give me a successful target code of cmem.ko.

linuxutils_4_00_01_08.tar.gz

Regards,

Xie Baojian