Hi Julien,
Am 01.03.2017 um 20:19 schrieb Julien Boulnois jboulnois@gmail.com:
Hi Nikolaus,
Reading the TI description, it looks like the same as X15's AM5728 but without DSP cores, right ?
Yes. They are quite similar.
That is strange that there is full documentation publicly available for AM57xx but not for this one.
Well, I guess since TI ended active marketing of the OMAP a while ago there was nobody and no budget to check and update the documents for potential legal issues. Hence it was probably easier to keep it confidential.
Anyway, I guess that GC320 and SGX544 drivers will likely works the same way.
AFAIK those parts are at least almost the same. Others on CC: may have more knowledge about potential subtle differences.
BR, Nikolaus
2017-03-01 20:09 GMT+01:00 H. Nikolaus Schaller hns@goldelico.com: Hi Julien,
Am 01.03.2017 um 19:59 schrieb Julien Boulnois jboulnois@gmail.com:
Hi,
I did'nt know about this Pyra project, look like a very nice little toy !
indeed :)
As we started to discuss with Tony on another email thread :
- etnaviv is used for the GC320 composition core, and is for 2D acceleration only. The open source Xorg driver I'm working on enable composition and XVideo acceleration using etnaviv kernel driver and is mainly benefical for desktop environment and applications.
- Tomi is working on a SGX driver that will be closed source for legal purpose, but that will enable OpenGLES 3D acceleration in conjonction with Xorg driver through DRI3.
All of this is in alpha state, but usable. You can already try the open source part, but we need to work with Tomi on the 3D part a little more.
I looked at your website but cannot find precise information about the omap5 soc : which chip do you use ?
"OMAP5432AAC"
U-Boot reports it as "OMAP5432-GP ES2.0"
TRM and other documents are AFAIK not public. We have got some under TI NDA a while ago.
BR, Nikolaus
Regards
2017-03-01 16:08 GMT+01:00 Tony Lindgren tony@atomide.com:
- Tomi Valkeinen tomi.valkeinen@ti.com [170301 00:22]:
On 28/02/17 21:06, Tony Lindgren wrote:
Hi all,
Maybe you've played with this already.. But if not, looks like the beagle-x15 folks got etnaviv acceleration working with some extra patches against mainline kernel:
https://eewiki.net/display/linuxonarm/BeagleBoard-X15#BeagleBoard-X15-2DVide... https://www.spinics.net/lists/linux-omap/msg133272.html
That's the drivers/gpu/drm/etnaviv driver, known as BB2D in the TRM. No idea about the frame rates, but might be an acceptable open source solution for accelerated video for pyra. I think it's the same setup on 5432.
Yep, it should work on OMAP5 too.
OK cool.
Julien has been working on a new X driver for etnaviv, with DRI3 support: https://github.com/julbouln/xf86-video-armsoc-omap5
I've written a DRI3 backend for the SGX driver, which works with Julien's driver.
But all that is still in quite alpha-state.
Oh OK I did not know SGX is somehow involved too. Is the plan to use them both at the same time?
Personally I was hoping to avoid any SGX binaries and still have usable graphics with etnaviv as SGX binaries are dependant on specific kernel versions..
Regards,
Tony
-- Julien Boulnois
-- Julien Boulnois