[Sound-open-firmware] [External] Re: Whiskeylake support and kernel version

[Pan, Xiuli]

>-----Original Message-----
>From: Sound-open-firmware <sound-open-firmware-bounces at alsa-project.org>
>On Behalf Of Pierre-Louis Bossart
>Sent: Saturday, September 14, 2019 12:53
>To: Mark Pearson <mpearson at lenovo.com>
>Cc: sound-open-firmware at alsa-project.org
>Subject: Re: [Sound-open-firmware] [External] Re: Whiskeylake support and
>kernel version
>
>
>
>On 9/13/19 4:55 PM, Mark Pearson wrote:
>> Hi Pierre,
>>
>> The issue I'm seeing in the 5.2.9 kernel seems to be related to suspend and
>resume (crash in sof_suspend).
>>
>> Are there any particular commits you can point to that might address just that
>problem? If the crash doesn't happen (rare) then the audio works fine so if I can
>get it stable it will be good enough for now.
>
>I can't think of any specific commit, it was quite dynamic in Q2 and we
>added quite a few patches. I would maybe look at the delta between 5.3
>and 5.2.9 in the sound/soc/sof directory and try to backport this minimum.
>

Hi Mark,

Could you check the GitHub issues:

https://github.com/thesofproject/linux/issues/494
https://github.com/thesofproject/linux/issues/505

And I think the final fix is

https://github.com/thesofproject/linux/pull/619

Could you have a look if this patch will solve your issue?

PS: The issue is mainly caused by FW signing check is not passed. So I am very interesting
in how do you solve the issue for FW signing? I think there will be FW load failure before the
panic happen?

PPS: If no FW sign issue, please check if you enable DSP in BIOS. And could you attach more
demsg log for us to identify what the issue is.

Thanks
Xiuli

>Alternatively the backport for a 5.0 product by the Ubuntu team might be
>also a solution. I don't know where their kernel is though, others would
>need to chime in.
>
>>
>> Thanks!
>> Mark
>>
>>> -----Original Message-----
>>> From: Pierre-Louis Bossart <pierre-louis.bossart at linux.intel.com>
>>> Sent: Thursday, September 12, 2019 1:08 PM
>>> To: Mark Pearson <mpearson at lenovo.com>; Kai Vehmanen
>>> <kai.vehmanen at linux.intel.com>
>>> Cc: sound-open-firmware at alsa-project.org
>>> Subject: Re: [Sound-open-firmware] [External] Re: Whiskeylake support and
>>> kernel version
>>>
>>>
>>>
>>> On 9/12/19 10:13 AM, Mark Pearson wrote:
>>>> Hi,
>>>>
>>>> If I wanted to backport the latest SOF support back to 5.2.9 (for the customer
>>> who wants that) - would that be a crazy thing to do? Any tips or pointers on
>>> doing that? Just update sound/soc/sof, include/uapi/sound/soc and
>>> include/sound/sof....maybe?
>>>
>>> We have a dumb script that detects all the changes upstream and tries to apply
>>> them on top of whatever kernel version. It's dumb in the sense that it just picks
>>> in arbitrary libraries and contributor names, but it can get a working config.
>It'd
>>> have to be a custom build since we only take specific things and can't
>guarantee
>>> that the same backported stuff will work on all platforms.
>>>
>>> The main problem is that there were a lot of reworks at the core level, with
>the
>>> 'modern' dai style, so I see 226 patches if you do this blindly.
>>>
>>> # get all changes in broonie-next since last backport git log --oneline --reverse
>--
>>> no-merges v5.2.9..broonie/for-next \
>>>       > log_broonie.tmp
>>>
>>> # get log based on directory (can be edited at will) git log --oneline --reverse --
>>> no-merges v5.2.9..broonie/for-next -- \
>>>       include/sound/sof/*.h include/uapi/sound/sof/*.h \
>>>       sound/pci/hda sound/hda \
>>>       sound/soc/sof/ \
>>>       > log_dir.tmp
>>>
>>> # get log from sound/ and include/sound based on authors from intel git log --
>>> oneline --reverse --no-merges v5.2.9..broonie/for-next --author=intel.com --
>>> sound/ include/sound > log_intel.tmp
>>>
>>> # merge SHA1s
>>> cat log_intel.tmp log_dir.tmp | sort -u > list.tmp
>>>
>>> # extract the relevant SHA1s from the initial list grep -F -x -f list.tmp
>>> log_broonie.tmp > gitlog.txt
>>>
>>> To apply the list (possibly edited), run this:
>>> cat gitlog.txt    | awk '{print $1}' > log1.tmp
>>> cat log1.tmp | git cherry-pick -x --stdin
>>>
>>> Disclaimer: backport support is beyond the scope of the SOF development
>team.
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