Hi Marc, > -----Original Message----- > From: Marc Zyngier [mailto:marc.zyng...@arm.com] > Sent: Saturday, May 20, 2017 9:43 AM > To: Matthias Brugger <matthias....@gmail.com> > Cc: Laurentiu Tudor <laurentiu.tu...@nxp.com>; gre...@linuxfoundation.org; > stuyo...@gmail.com; de...@driverdev.osuosl.org; a...@arndb.de; Ruxandra > Ioana Radulescu <ruxandra.radule...@nxp.com>; Stuart Yoder > <stuart.yo...@nxp.com>; Roy Pledge <roy.ple...@nxp.com>; linux- > ker...@vger.kernel.org; ag...@suse.de; Catalin Horghidan > <catalin.horghi...@nxp.com>; Ioana Ciornei <ioana.cior...@nxp.com>; > Thomas Gleixner <t...@linutronix.de>; Leo Li <leoyang...@nxp.com>; Bharat > Bhushan <bharat.bhus...@nxp.com>; Jason Cooper <ja...@lakedaemon.net>; > linux-arm-ker...@lists.infradead.org; Rob Herring <robh...@kernel.org> > Subject: Re: [PATCH 3/3][v4] staging: fsl-mc: move bus driver out of staging > Importance: High > > On Fri, May 19 2017 at 02:41:43 PM, Matthias Brugger > <matthias....@gmail.com> wrote: > > On 19/05/17 15:13, laurentiu.tu...@nxp.com wrote: > >> From: Stuart Yoder <stuart.yo...@nxp.com> > >> > >> Move the source files out of staging into their final locations: > >> -include files in drivers/staging/fsl-mc/include go to include/linux/fsl > >> -irq-gic-v3-its-fsl-mc-msi.c goes to drivers/irqchip > > > > This driver has as compatible "arm,gic-v3-its". I wonder if this is > > correct and if it should be moved like this out of staging. > > This is no different from the way we handle *any* bus that uses the > GICv3 ITS as an MSI controller. Each bus provides its glue code that latches > onto > the ITS node, and calls into the generic code. > > Now, when it comes to moving this out of staging, here is my concern: > There is mention of a userspace tool (restool) used to control the HW. Where > is > this tool? Where is the user ABI documented?
The tool is published here: https://github.com/qoriq-open-source/restool There are two ways of configuring the mc-bus: - a static one, through a FDT based configuration file (we call it DPL), documented in the refman linked below, chapter 22. - a dynamic one, using this restool utility. Please note the usage of restool is optional. The reference manual documenting the ABI can be found here (registration required): https://freescale.sdlproducts.com/LiveContent/content/en-US/QorIQ_SDK/GUID-53BEBDD8-1A5E-4DD0-8354-A9647AD35755 Click on the DPAA2 user manual link. We're also working on publishing the docs on github so that they're more accessible. --- Thanks & Best Regards, Laurentiu _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
