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Mali-400 Driver r1p1 rel1 incompatible with GATOR

Leonardo Scandolo

Note: This was originally posted on 27th August 2013 at http://forums.arm.com

I am trying to get profiling information from a Mali-400 in configuration with an A13, using driver r1p1 release 1 for the Mali-400. Whenever I run GATOR, it checks for the callback called *_mali_osk_fbcontrol_set*, but it is nowhere to be found in the Mali-400 driver code, so it cannot retrieve profiling information from the GPU. Has anyone run into this problem? Is that callback available in other drivers, or do I need to get any missing modules ?


The error message I get while trying to capture gator information is "gator: mali online _mali_osk_fbcontrol_set symbol not found". While running the ds-5, it says the configuration is incompatible when trying to check any variables related to the Mali-400, but everything else (CPU, Mem) works flawlessly.


Any ideas?

  • 0 Arm Employee Badge
    Note: This was originally posted on 10th September 2013 at http://forums.arm.com

    Hello Iscandolo,

    Can you please confirm the driver version?
    r1p1 is a very very old version of the driver, however is the latest revision of the hardware.
    Do you mean that you are using r1p1 hardware? If this is correct, can you provide the version of your driver in addition to this?
    This can most easily be checked by running strings on the mali.so library, and searching for the word REVISION.

    Thanks in advance,

    I am trying to get profiling information from a Mali400 in configuration with an A13, using driver r1p1 release 1 for the Mali400. Whenever I run GATOR, it checks for the callback called *_mali_osk_fbcontrol_set*, but it is nowhere to be found in the Mali400 driver code, so it cannot retrieve profiling information from the GPU. Has anyone run into this problem? Is that callback available in other drivers, or do I need to get any missing modules ? The error message I get while trying to capture gator information is "gator: mali online _mali_osk_fbcontrol_set symbol not found". While running the ds-5, it says the configuration is incompatible when trying to check any variables related to the Mali400, but everything else (CPU, Mem) works flawlessly. Any ideas?
  • 0
    Note: This was originally posted on 10th September 2013 at http://forums.arm.com

    The driver version is actually r3p1 release 0 (I checked again just in case), I messed up when writing the first post.
  • +1 Arm Employee Badge in reply to Leonardo Scandolo

    Hi Iscandolo,

    1) Could you please confirm that you have built GATOR using following settings:

    GATOR_WITH_MALI_SUPPORT=MALI_400 KCFLAGS=\"-I/path/to/ddk/source -DGATOR_MALI_INTERFACE_STYLE=3 -DGATOR_TEST_ENABLED -DxxDEBUG\" make -j8 -C /path/to/linux/kernel M=`pwd` ARCH=arm CROSS_COMPILE=arm-eabi- modules"

    2) Are you getting warnings about any other missing symbols or just the one about _mali_osk_fb_control_set ?

  • 0 Arm Employee Badge in reply to Leonardo Scandolo

    Hi Iscandolo,

    Is this still an issue for you? Do you need further assistance with this?

    Kind Regards

  • 0 in reply to Michael McGeagh

    Sorry for the delay in answering, I've been tied up in other projects.

    I compiled gator following kubacki's instructions and using driver r3p2-01rel1 and now it works!

    Thanks for the help guys!