Also if I skip this IOCTL in the code then memtester works normaly and say 
that memory is normal.

пятница, 3 апреля 2015 г., 19:20:38 UTC+3 пользователь Andrew Kosteltsev 
написал:
>
>
> Hi Siarhei
>
> I have built u-boot02015.01 and latest stage/sunxi-3.4 kernel (four memory 
> chips 512Mx8 on the board) and trying to use lima-memspeed utility.
>
> $ ./lima-memspeed gpu_copy
>
> GPU jobs works properly but PP jobs crashes the system (I have inserted 
> printf() functions to your code and ...).
>
> I have found the point where the system reboots. It happens when we call 
> LIMA_M400_PP_START_JOB_R3P0..
>
> G2P and FB allocation is follow:
>
> SYS: 0x43000000 - 0x4300FFFF ( 64 KB)
> G2D: 0x50000000 - 0x57FFFFFF (128 MB)
> LCD: 0x58000000 - 0x5FFFFFFF (128 MB)
>
> dcdc3 vol 1300000 uV
>
> system crashes exactly during the IOCTL:
>
> limadriver/limare/lib/jobs.c~410:
>
> int limare_m400_pp_job_start_r3p0(
>   ....
>    ....
>
>    ret = ioctl( state-fd, LIMA_M400_PP_START_JOB_R3P0, &job);
>
>  
> probably this error related to translation physical addresses in the 
> kernel mali driver when we access to pixel processors.
>
> Please advise how to fix this error or make some workaround. 
>
> Thanks in advance.
> Andrey K.
>
>
>

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