On Tue, 11 Dec 2018 22:23:11 +0100, Pierre-Louis Bossart wrote: > > From: Liam Girdwood <liam.r.girdwood@xxxxxxxxxxxxxxx> > > This patch adds support for real-time DSP logging (timestamped events > and bespoke binary data) for firmware debug. The current solution > relies on DMA transfers to system memory that is then accessed by > userspace tools such as sof-logger. For Intel platforms, two types of > DMAs are currently used (GP-DMA for Baytrail/CherryTrail and HDaudio > DMA for SKL+) > > Due to historical reasons, the driver code follows the DSP firmware > conventions and refers to 'traces', but it is currently unrelated to > the Linux trace subsystem. Future solutions will include support for > more advanced hardware (e.g. MIPI Sys-T), additional formats and the > ability to enable/disable specific traces dynamically. So what's the reason not to use Linux standard tracing infrastructure? thanks, Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
