Hi all,
Am 17.07.2019 um 12:51 schrieb Merlijn Wajer merlijn@wizzup.org:
Hi,
On 10/03/2019 08:07, H. Nikolaus Schaller wrote:
Am 10.03.2019 um 00:14 schrieb Merlijn Wajer merlijn@wizzup.org:
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/pv...
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-pv...
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