ACube/AEon - more info about PCIe cards in SAM440, please

@geennaam

Quote:


Can this Transparent mode be set by the user?
Transparent mode as in that the bridge chip is undetectable by the system? so that it would not show up if you use the "pci 0" or "pci 1" commands to scan for it in uboot?

That would be rather excellent, as the AmigaOne XE has difficulties working with nested PCI devices. e.g. invalid interupts in 33mhz slots and nothing showing up in the 66mhz slot.

@Helloworld


No. Transparent in the PCI context means that the host is able to scan for devices behind the bridge without need for a driver.

Halleluiah!

I'm happy to report that with the GFS (Geennaam's Frankenstein Solution)
my SAM440Flex works with a VTX HD 7750(VX7750 1GBD5-DH) GPU!
UBoot is visible, WB too. The Lite driver does not allow much but lets wait untill Monday when I buy ES2.0.

Someone brave enough to test SAM440+GFS+RX550?
There is no UVD for SI cards yet and I have to stop spending money

Thanks geennaam and Spectre660

@mr2

Nice, congrats.

Cheers

@mr2

The RadeonRX drivers halts during initialization with my RX560. I doubt that a RX550 will work.

@geennaam

Congratulations everyone .

Would be useful if someone could try a Radeon RX model known to work with a Sam460ex/cr to make sure that the problem is not an issue with a particular RX card model.

@geennaamQuote:

Exactly the same with my RX460 ( works fine on PC workstation)

Type: ASUS Dual RX460 (DUAL-RX460-2G)
No U-boot, RadeonRX halts.

Tested on:
Sam440ep-flex
AmigaOne X1000 (here I have no debuglog, but symptoms are the same)

@sailor

I've made a bug report about this issue. But I don't think that it will be high on the priority list. So a southen island card will be the best available (for now).

@geennaam
yes, I know that the priority will not be high.
It is excellent, that Southern Isands now works on Sam440. It have Warp3D and 3DNova. The RX - Polaris card have only one advatage - UVD. But who knows, maybe there will be UVD for Southern Islands too.

The RX driver was updated. I guess, no change?

Max from ACube posted in another thread...

I've identified what's the problem with newer Radeon Bios card under U-boot on the Sam boards, but ATM I didn't find any solution about it.

Finger crossed for the solution.

I tested my RX460 with previous driver version. I will try with the new one and post here the debuglog, but probably next week, now I have very little time.

I again tried on Sam440ep-flex gfx RX460 (ASUS DUAL-RX460-O2G) with new RadeonRX.chip 2.5 (14.4.2021).
Again no success. Black screen with U-boot and workbench.
Debug with P17C9 bridge:


Debug with PEX8111 bridge:


This card also not works in AmigaOneX1000.
If I find somewhere Radeon RX card which works for sure with RadeonRX on Sam460 or X5000 - for example Kas1e's RadeonRX 560 - I will try it on Sam440ep-flex.
So, next time...

Bummer!, too bad...I wonder if one could say sth from your debugs?

@sailor

I noticed your excellent review of gfx cards in the sam440-flex.

One thing was not entirely clear from the translation. Did you test the SI cards with the dedicated warp3d-SI driver or with WaZp3D?

@geennaam
thank you. Unfortunatelly I had only one Polaris card, and this one was not works. Maybe one friend lend me another one.
You very brave that you understand the google translation from Czech language - it is really not an easy task! For example "X-Ray driver" from google is very cute.

All Southern Island were tested with Warp3D-SI. WaZp3D with compositing not tested, but it is also good idea. I only test Southern Island cards both with MiniGL4GLES and MiniGL. MiniGL4GLES was a little bit faster - 43 vs. 46 FPS WingBattlefield on R9 270X.

hmmm, and google translator says, that I don't like Classic Amiga games on E-UAE

I like

@sailor

Don't bother with those polaris cards. They don't work in a sam440.

It wasn't my intention to advise WaZp3D. Just curious if you used the Warp3D-SI driver. The performance seems low. But it could be the latency issue as you mentioned.

@geennaam
but anyway I will test the WaZp3D with compositing - at least on the card stayed on my Sam - R9270X.

On MorphOS I have better results on R200 cards with WaZp3D instead Warp3D. But is not comparable with AmigaOS - here is Warp3D native, and on MorphOS it is wrapped with Goa.

But comparison will be interesting too.

@geennaam
Did I understand correctly, that you use 2 adapters to be able to use RadeonHD in PCI slot ? I.e., one from PCI to PCIex1, and then on top another one from PCIex1 to PCIex16, and then, put RadeonHD into latest one ?

Maybe for pegasos2 better to use some AGP<->PCIex16 adapter (if there is any)..

@kas1e

One is an adapter the other is more an expander.

The adapter with the pericom will translate between PCI and PCIe.

The PCIe x1 to x16 is used for two reasons:
- Power inserter for the PCIe slot (up to 75W)
- be able to mount the Radeon HD inside the tower.