Re: [PATCH v2 00/15] Exynos MFC v6+ - remove the need for the reserved memory

[Marian Mihailescu <mihailescu2m@gmail.com>]

Hi,

I was testing with the linux-next kernel + the v2 patches
HW: odroid xu4
decoding (working): tested with gstreamer
encoding: tested with gstreamer && mfc-patched ffmpeg
before patches: encoding worked
after patches: encoding didn’t work.

I moved on from linux-next in the meantime and I cannot give you logs, BUT I’ve seen Hardkernel applied these patches (and all the linux-next MFC patches) on top of their 4.9 tree, and the result is very similar to mine on linux-next: https://github.com/hardkernel/linux/issues/284

Mar 21 13:04:54 odroid kernel: [   37.165153] s5p_mfc_alloc_priv_buf:78: Allocating private buffer of size 23243744 failed
Mar 21 13:04:54 odroid kernel: [   37.171865] s5p_mfc_alloc_codec_buffers_v6:244: Failed to allocate Bank1 memory
Mar 21 13:04:54 odroid kernel: [   37.179143] vidioc_reqbufs:1174: Failed to allocate encoding buffers


A user reported even adding s5p_mfc.mem=64M did not make the encoder work.
Any thoughts?

Thanks,
M.

(resent in plain text format)

> On 17 Mar. 2017, at 10:36 pm, Andrzej Hajda <a.hajda@samsung.com> wrote:
> 
> Hi Marian,
> 
> On 15.03.2017 12:36, Marian Mihailescu wrote:
>> Hi,
>> 
>> After testing these patches, encoding using MFC fails when requesting
>> buffers for capture (it works for output) with ENOMEM (it complains it
>> cannot allocate memory on bank1).
>> Did anyone else test encoding?
> 
> I have tested encoding and it works on my test target. Could you provide
> more details of your setup:
> - which kernel and patches,
> - which hw,
> - which test app.
> 
> Regards
> Andrzej
> 
> 
>> 
>> Thanks,
>> Marian
>> 
>> Either I've been missing something or nothing has been going on. (K. E. Gordon)
>> 
>