* Could you support the modules of the coresight drivers?
[not found] <CGME20200703074421epcas2p177b67a55997c00b3b6ad8126a7ce8a6d@epcas2p1.samsung.com>
@ 2020-07-03 7:44 ` 김창기
2020-07-06 14:36 ` Mathieu Poirier
0 siblings, 1 reply; 2+ messages in thread
From: 김창기 @ 2020-07-03 7:44 UTC (permalink / raw)
To: mathieu.poirier
Cc: linux-arm-kernel, linux-kernel, suzuki.poulose,
alexander.shishkin
Hello.
I am software engineer in charge of BSP (Samsung SOC vendor).
Recently, Google introduced GKI from Android 11(R) version.
So we can't modified kernel code except module drivers.
Coresight drivers doesn't support module.
I need the module support because our SoC should set value to vendor
specific register to run ETMv4.
And in GKI, ETM has disabled in recommend defconfig.
So if we use ETM in Android 12(S), it should support module.
Could you support the modules of the coresight drivers?
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Could you support the modules of the coresight drivers?
2020-07-03 7:44 ` Could you support the modules of the coresight drivers? 김창기
@ 2020-07-06 14:36 ` Mathieu Poirier
0 siblings, 0 replies; 2+ messages in thread
From: Mathieu Poirier @ 2020-07-06 14:36 UTC (permalink / raw)
To: 김창기
Cc: linux-arm-kernel, Linux Kernel Mailing List, Suzuki K. Poulose,
Alexander Shishkin
On Fri, 3 Jul 2020 at 01:44, 김창기 <changki.kim@samsung.com> wrote:
>
> Hello.
>
> I am software engineer in charge of BSP (Samsung SOC vendor).
>
> Recently, Google introduced GKI from Android 11(R) version.
> So we can't modified kernel code except module drivers.
>
> Coresight drivers doesn't support module.
> I need the module support because our SoC should set value to vendor
> specific register to run ETMv4.
> And in GKI, ETM has disabled in recommend defconfig.
> So if we use ETM in Android 12(S), it should support module.
>
> Could you support the modules of the coresight drivers?
There have been multiple patchset submitted to do that, the latest one
last week [1]. I encourage you to review and test the work.
Thanks,
Mathieu
[1].https://www.spinics.net/lists/arm-kernel/msg818583.html
>
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[not found] <CGME20200703074421epcas2p177b67a55997c00b3b6ad8126a7ce8a6d@epcas2p1.samsung.com>
2020-07-03 7:44 ` Could you support the modules of the coresight drivers? 김창기
2020-07-06 14:36 ` Mathieu Poirier
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