How to enable ETM/ETB on Qualcom chipset

[Mathieu Poirier]

HW assisted tracing is currently not supported upstream on a core like
the 8974.  There is currently a lot of work being done to change that
but things aren't finished yet.

Support for the 8974 can be found here [1] and here [2] as work in progress.

For a free trace decoding "ptm2human" does a pretty good job.  Tools
like DS-5 and Trace32 will work flawlessly.

Mathieu

[1]. https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.10/log/?h=LNX.LA.3.7.1_rb3.2
[2]. https://git.linaro.org/kernel/coresight.git

On 15 September 2014 09:49, Lijun Chen <ljchen999 at gmail.com> wrote:
> Hi,
>
> Anybody used ETM/ETB on Qualcomm, e.g. 8974? Which CONFIGs need to be
> turned on? And how to decode the buffer afterwards?
>
> Thanks,
> Lijun
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel