Hi Marc, > -----Original Message----- > From: Marc Zyngier [mailto:[email protected]] > Sent: Saturday, May 20, 2017 9:43 AM > To: Matthias Brugger <[email protected]> > Cc: Laurentiu Tudor <[email protected]>; [email protected]; > [email protected]; [email protected]; [email protected]; Ruxandra > Ioana Radulescu <[email protected]>; Stuart Yoder > <[email protected]>; Roy Pledge <[email protected]>; linux- > [email protected]; [email protected]; Catalin Horghidan > <[email protected]>; Ioana Ciornei <[email protected]>; > Thomas Gleixner <[email protected]>; Leo Li <[email protected]>; Bharat > Bhushan <[email protected]>; Jason Cooper <[email protected]>; > [email protected]; Rob Herring <[email protected]> > 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 > <[email protected]> wrote: > > On 19/05/17 15:13, [email protected] wrote: > >> From: Stuart Yoder <[email protected]> > >> > >> 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 [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
