Trying to get a Radeon HD 7750 working in an AmigaOne XE

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Hans

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/9 1:13 #21

Home away from home

@Helloworld
Quote:

RadeonHD.chip (0): ERROR: PCI BIOS ROM signature not found
RadeonHD.chip (0): ERROR: Could not obtain the AtomBIOS
RadeonHD.chip (0): RadeonHD card closed

That's not a good sign. Does this card work when you plug it into a standard PC?

Quote:

PCI BIOS ROM signature... as in legacy parallel PCI?

No. Graphics cards have a ROM onboard. That error message says that the ROM signature doesn't match what it should be for a Radeon HD card.

Hans

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utri007

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/9 8:10 #22

Not too shy to talk

Fixin this issue could also help us who have a Sam 440ep Flex.

I doubt that issue is a uboot.

Helloworld

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/9 20:09 #23

Just popping in

@Hans

My 7750 boots 32 bit Windows XP just fine, both via native PCIE and via the PEX8111 adapter.

https://preview.ibb.co/dxF8vd/IMG_20180509_200915.jpg

https://image.ibb.co/jfXMFd/IMG_20180509_200941.jpg

Sorry for the lack of information regarding the atombios

The old PC I have for testing is unstable and it does not have any free space on the C drive for me to install the drivers, so video card dianogstic programs such as GPU-Z won't function.

I thought it would be good anyway to let you know while I'm looking for a 32 bit CMD program to scan the atombios.
________
*Edit*
Removed preview images because they started to break this forum page

Edited by Helloworld on 2018/5/12 20:32:05

Hans

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/10 1:06 #24

Home away from home

@Helloworld
Quote:

...

The old PC I have for testing is unstable and it does not have any free space on the C drive for me to install the drivers, so video card dianogstic programs such as GPU-Z won't function.

So you're using the VESA drivers. That means there must be something in the ROM, or the VESA drivers wouldn't work. It would still be useful to confirm that the ROM is a valid AtomBIOS one and isn't partially corrupt.

Hans

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GuusOnline

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/10 15:24 #25

Just popping in

*Edited/deleted*

Edited by GuusOnline on 2018/5/10 19:55:27

Helloworld

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/10 20:01 #26

Just popping in

@Hans

I tested my 7750 at a friend's place on his 64 bit windows 10 PC and my 7750 is working correctly from bios/boot to OS with drivers installed.

Resized Image

and we tested a couple hours of Tux kart. for science.

Next time I'm there I will dump the bios and compare it to the
bios from TechPowerUp, that didn't spring to mind then but for now
I think that this points toward that the bios is likely intact.

My atombios seems to be newer than TechPowerUp's bios though

Mine
015.025.000.002.000000 2012-09-21 04:39:00

Theirs
015.021.000.000.000000 2012-06-11 02:59:00

A quick google search hints that it is legitimate as it is also used by
Sapphire's 2GB version of the 7750 and their 2GB 7870

Edited by Helloworld on 2018/5/10 20:40:51
Edited by Helloworld on 2018/5/10 20:54:05
Edited by Helloworld on 2018/5/10 20:55:30

Hans

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/11 2:51 #27

Home away from home

@Helloworld

The ROM must be okay if AMD's drivers worked.

When you dump the BIOS, please post the first 2 bytes in particular, they should be 0x55, 0xaa. That's what the driver checks when it's failing.

It's a real puzzle why it's failing the ROM signature check while the card works find in a Windows machine.

Hans

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Helloworld

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/11 12:36 #28

Just popping in

@Hans

Bios dumped using PEX8111 adapter.

Bios ROM here

Html file for viewing hex with offset with a browser

Hans

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/12 3:58 #29

Home away from home

@Helloworld

Okay, so the graphics card's ROM is fine. Something is going wrong with reading the ROM. Very weird, as that's been working reliably for years on all other platforms, and I started developing the driver on an A1-XE.

What version of AmigaOS 4.x are you using?

EDIT: Can you also check the state of the PCIe-to-PCI bridge in Ranger?
EDIT2: If you do get the driver running, then you'll need to disable interrupts for the board. Ranger shows that the IRQ's line hasn't been set (it's 0xFF which is invalid).

Hans

Edited by Hans on 2018/5/12 8:40:37
Edited by Hans on 2018/5/12 8:42:07

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Helloworld

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/12 21:30 #30

Just popping in

@Hans

I'm using the latest version with all Amiupdates from Hyperion
and UBoot 1.1.1 from March 3 2005.

(Sysmon)
Resized Image

I got off guard by the RadeonHD chip being in there but to reaffirm the bios check failed and my 7750 doesn't show up as a graphics board.

Here is the PEX8111 in Ranger

Resized Image

Quote:

If you do get the driver running, then you'll need to disable interrupts for the board. Ranger shows that the IRQ's line hasn't been set (it's 0xFF which is invalid).

Hmm, would I have to do that via UBoot preferences?

Resized Image

Quote:

... I started developing the driver on an A1-XE

Yeah I noticed that on your blog!

VisionTek Radeon X1300 256MB PCI with a PEX8111 bridge chip!

So the PEX8111 used to work, maybe it is something specific with Southern Islands cards?

(On firefox that page displays the PEX8111 as a massive backdrop, but not on OWB)

Edited by Helloworld on 2018/5/12 22:02:54
Edited by Helloworld on 2018/5/12 22:41:51
Edited by Helloworld on 2018/5/12 22:47:13
Edited by Helloworld on 2018/5/12 23:00:29
Edited by Helloworld on 2018/5/12 23:19:08

Helloworld

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/12 21:55 #31

Just popping in

@Hans

Also a minor curiosity,

If I boot without the startup-sequence via the early startup menu,
the 7750 will gain two seemlingly invalid I/O flags
(0xFFFFFFF8)
Resized Image

Which the card can keep after a warm reboot.

Resized Image

The 7750's audio device will also gain one I/O flag (same base/physical)
There is no other card which will gain flags.

Hans

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/13 8:38 #32

Home away from home

@Helloworld

Quote:

I got off guard by the RadeonHD chip being in there but to reaffirm the bios check failed and my 7750 doesn't show up as a graphics board.

Here is the PEX8111 in Ranger
...

That screenshot shows what's wrong. the "Command" section should have "IO" and "Mem" as well. Without those, reads/writes to the graphics card's registers and VRAM/ROM never get through. I thought we'd fixed that already (PCIGraphics was supposed to handle that), but obviously not.

I'll see what I can do...

Quote:

Hmm, would I have to do that via UBoot preferences?

No. Interrupts are disabled via the monitor tooltypes in DEVS:Monitors/. You can also use the ScreenMode prefs' Monitor tab to edit those settings.

Quote:

If I boot without the startup-sequence via the early startup menu,
the 7750 will gain two seemlingly invalid I/O flags
(0xFFFFFFF8)

That's because the OS doesn't know about 64-bit PCI addressing. Resource ranges 1 and 3 are actually the upper 32-bits for 0 and 2.

Hans

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Rob

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/13 17:23 #33

Not too shy to talk

@Hans

Quote:

That screenshot shows what's wrong. the "Command" section should have "IO" and "Mem" as well. Without those, reads/writes to the graphics card's registers and VRAM/ROM never get through. I thought we'd fixed that already (PCIGraphics was supposed to handle that), but obviously not.

I'll see what I can do...

I hope this isn't too difficult to fix. Being so close to getting the SI cards running on the XE is really exciting even though I sold mine on after getting the X1000.

Helloworld

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/18 15:05 #34

Just popping in

@Hans

Thank you for looking into this Hans.

If it makes any difference, the PEX8111 card will have "IO" and "Mem" if the 7750 isn't inserted.

Resized Image

I'd like to test other PCI Express cards with the adapter seeing if it will have those commands but the 7750 is the only card I have ATM.

Hans

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/25 7:53 #35

Home away from home

@Helloworld

Interesting, although somewhat expected. UBoot has to enable the bridge in order to initialize the graphics card. However, it then disables the graphics card's memory and IO access, and does the same to the bridge.

I haven't had a chance to look at this problem further. I'll try to get to that next week.

Hans

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utri007

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/27 1:28 #36

Not too shy to talk

Would it be same problem with Sam 440ep Flex?

Hans

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/5/28 1:05 #37

Home away from home

@utri007
Quote:

Would it be same problem with Sam 440ep Flex?

Unlikely. AFAIK, the problem of UBoot disabling the bridge is specific to the A1-XE (and possibly the uA1).

From memory, we have had RadeonHD cards work in Sam440's, just not Southern Islands cards. That's caused by a different problem (UBoot not initialising the card properly in a different way).

Hans

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Helloworld

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/6/3 13:00 #38

Just popping in

@Hans

@Hans

Quote:

I haven't had a chance to look at this problem further

https://www.youtube.com/watch?v=WN3wfCxU9DI

Do you have access to an XE and PEX adapter?

If you don't have a PEX adapter then I could donate you money to get yourself the same adapter.

Which I know does not warrent me to a working driver nor do I hold you accountable if it can't be fixed,
I'm just trying to improve the odds of getting the 7750 to work, I can't wait for tabor anymore.

Hans

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/6/4 3:07 #39

Home away from home

@Helloworld
Quote:

Do you have access to an XE and PEX adapter?

No, but that's not necessary.

I'm rather overwhelmed with work right now (really need to get the current contract finished and shipped ASAP). Once that's over I'll be able to have a go at adding the workaround that's needed.

Hans

Join Kea Campus' Amiga Corner and support Amiga content creation
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Hans

Re: Trying to get a Radeon HD 7750 working in an AmigaOne XE

Posted on: 2018/6/9 9:22 #40

Home away from home

@Helloworld

I might have time to look at this next week. Could you PM me your email address?

Hans

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