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BWint9's avatar
BWint9
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6 years ago

I get an error when building the OpenCL driver for CentOS 7 (5.1.9-1.el7.elrepo.x86_64). This driver build is related to the Arria 10 GX Development Kit.

The error is generated during the following build invocation : %> aocl install There is an unresolved reference to the function do_gettimeofday(...). Per internet search, I replaced the do_gettime...
BWint9's avatar
BWint9
Icon for New Contributor rankNew Contributor
6 years ago

I have attached updates to the device driver. These updates modify the timer resolution from usec to nsec. These changes resolved the issues I was having with the deprecated do_gettimeofday function.

  • Hiroto_K_Intel's avatar
    Hiroto_K_Intel
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    6 years ago

    Hello,

    Firstly, we didn't evaluate kernel 5.x for the OpenCL kernel drivers and later your issue will be resolved for the future version.

    On the other hand, I believe your workaround is good because it is based on the descriptions in Linux kernel site.

    "truct timeval do_gettimeofday (void)

    ktime_get_real_ts64() is a direct replacement, but consider using monotonic time (ktime_get_ts64()) and/or a ktime_t based interface (ktime_get()/ktime_get_real())."

    Again, please note it is not fully tested now.