Hi all, > Am 17.07.2019 um 12:51 schrieb Merlijn Wajer <merlijn@xxxxxxxxxx>: > > Hi, > > On 10/03/2019 08:07, H. Nikolaus Schaller wrote: >> >>> Am 10.03.2019 um 00:14 schrieb Merlijn Wajer <merlijn@xxxxxxxxxx>: >>> >>> Hi, >>> >>> On 15/02/2019 14:09, H. Nikolaus Schaller wrote: >>> >>>>>> At least I can download and start firmware. I just have to find a way to fix the omaplfb so that it works >>>>>> with our omapdrm based panels to runs the CLipBlit test [1] on modern kernels... >>>>> >>>>> Maybe you can compare with what we have here: >>>>> https://github.com/maemo-leste/n9xx-linux/tree/pvr-wip-4.15.7/drivers/gpu/pvr >>>> >>>> I'll take a look into it especially how omaplfb is done. >>>> >>>> First observation is that there is a "flat" tree while I am working on a structured one... >>>> But that is just a marginal difference (mainly significant for Makefile writers). >>> >>> I've ported the Maemo Leste kernel + pvr to 5.0 and it seems to work: >>> https://github.com/maemo-leste/n9xx-linux/commits/pvr-wip-5.0.y >>> >>> Should I add this as maemo-leste-n900-5.0 branch (or something) to >>> https://github.com/openpvrsgx-devgroup/linux_openpvrsgx ? >> >> Yes, that would be nice to be able to easily compare stuff. > > I've just pushed the Maemo Leste v5.1 branch + patches here: > > https://github.com/openpvrsgx-devgroup/linux_openpvrsgx/tree/n900/v5.1-patch > > This works on N900 with X, but it doesn't use DRM yet. I'm wondering > what a next logical step would be: to try and modules to load/probe on > another device (I have a droid4 or a Pandaboard ES rev B1), or to try > and get DRM PowerVR to work on the N900, with omapdrmfb and dri3wsegl. > > For either path, I'll probably need some help. Any updates from anyone > else? Maybe we should list things people can work - perhaps document > progress in github issues. (Mailing list is also fine, BTW) > > Cheers, > Merlijn > I also have pushed good news to https://github.com/openpvrsgx-devgroup/linux_openpvrsgx/tree/letux-pvr Thanks to the help from the Pyra community, I was able to get a (binary) reference implementation using DRM that works on Pyra/OMAP5. At least the gles1test1. With that reference setup I was able to fix my Makefiles for the staging/pvr implementation. I have tested that it works with v4.19.66 and v5.3-rc4 (LPAE build of the LetuxOS kernel tree) on the Pyra. In which areas does this tree go beyond the TI SDK/IMG DDK 1.14? * includes internal API fixes for kernels up to v5.3 * lives in drivers/staging/pvr/1.14.3699939 - so that we can ask for inclusion in linux-next * has Kconfig and Makefiles for in-kernel configuration (no separate build system) * builds separate kernel modules for omap3430, omap3630, am335x, omap4, omap5, dra7 etc. pvrsrvkm e.g. pvrsrvkm_omap_omap5_sgx544_116 * the correct kernel module is automatically probed by matching .compatible in device tree so that the code is multi-platform friendly * includes SoC integration for OMAP3/4/5 and has some preliminary bindings documentation * code base should also support JZ4780/CI20 and some Intel Atom processors (CedarView, Poulsbo) * has got a ToDo to describe what should be done during staging phase https://github.com/openpvrsgx-devgroup/linux_openpvrsgx/blob/letux/latest-pvr/drivers/staging/pvr/TODO My plans for the next steps are: * do more testing (e.g. X11, kmscube) * check if and/or how it can run on am335x (BeagleBone) or OMAP3 (e.g. GTA04, OpenPandora) * try a JZ480/CI20 build (unfortuantely I have no HDMI there with mainline kernels and I am missing the user-space libraries for MIPS). BR, Nikolaus
