12 June 2024, 18:07 | #21 |
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I'm keen to help test this and provide feedback etc.
I have an A4000D with Prometheus Firebird and an A1200 with Mediator (original version...) Also Radeon 9250 and Voodoo 4 cards too (I'm still hoping we can get Voodoo 4 on Prometheus, but not sure what the limitations are there) |
12 June 2024, 20:14 | #22 | |
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Not that is matters, V4 is running in V3 compatibility mode on OS3. Last edited by Hedeon; 12 June 2024 at 20:26. |
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14 June 2024, 02:02 | #23 |
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Just for a test I put a Voodoo 4 on the Prometheus, it starts up just fine, workbench loads with the correct screenmode, however trying to start the Ragnarok, it complains "Error during MMU Set Up of PPC."
Which I would guess this is the problem, the 32MB Voodoo 4 is using up a whole 256MB? PPCInit a second time and it complains "Could not allocate sufficient PCI memory" Code:
Internal Configuration Space infos VendorID : $121a DeviceID : $9 ClassRevision : $03000001 PCI_REVISION_ID $01 Header Type : $00 (0=Normal/1=Bridge/2=Cardbus) PCI_SUBSYSTEM_ID $ffff Command : $0003 I/O space PCI_COMMAND_IO Memory space PCI_COMMAND_MEMORY PCI_LATENCY_TIMER : $00 ---------------------------------- Pci Device Slot Num : 1, Func Num : 0 Vendor : 3dfx Interactive Inc Device : Voodoo5 VendorID : $121a DeviceID : $9 ClassCode: 0x030000 IRQNumber: 5 MemAddr0 : $68000000 - $6fffffff 131072 kbytes MemAddr1 : $60000000 - $67ffffff 131072 kbytes IOAddr2 : $7fe01000 - $7fe010ff 256 bytes RomAddr : $70010000 - $7001ffff RomSize : 65536 bytes 64 kbytes No Bus Master Capable Card PCI_STATUS Support 66 Mhz PCI 2.1 bus Accept fast-back to back What's Enabled in the Card ? I/O space PCI_COMMAND_IO Memory space PCI_COMMAND_MEMORY ---------------------------------- Internal Configuration Space infos VendorID : $1057 DeviceID : $480b ClassRevision : $06000002 PCI_REVISION_ID $02 Header Type : $00 (0=Normal/1=Bridge/2=Cardbus) PCI_SUBSYSTEM_ID $1057 Command : $0007 I/O space PCI_COMMAND_IO Memory space PCI_COMMAND_MEMORY Bus mastering PCI_COMMAND_MASTER PCI_LATENCY_TIMER : $00 ---------------------------------- Pci Device Slot Num : 2, Func Num : 0 Vendor : Motorola Device : VendorID : $1057 DeviceID : $480b ClassCode: 0x060000 IRQNumber: 0 MemAddr0 : $70003000 - $70003fff 4 kbytes MemAddr1 : $70004000 - $70004fff 4 kbytes MemAddr2 : $78000000 - $7fffffff 131072 kbytes MemAddr3 : $70040000 - $7007ffff 256 kbytes Bus Master Capable Card PCI_STATUS Support 66 Mhz PCI 2.1 bus Accept fast-back to back What's Enabled in the Card ? I/O space PCI_COMMAND_IO Memory space PCI_COMMAND_MEMORY Bus mastering PCI_COMMAND_MASTER 2048bytes MEM_PCI DMA Mem Allocated : 61bfd000 16384bytes MEM_PCI DMA Mem Allocated : 61bff000 Free Mem 2048 2040bytes MEM_NONCACHEABLE DMA Mem Allocated : 61bfd000 Free Mem 2040 4096bytes MEM_NONCACHEABLE DMA Mem Allocated : 61c04000 Free Mem 4096 Free Mem 16384 300000 bytes MEM_NONCACHEABLE DMA Mem Allocated : 61bfd000 Free Mem 300000 Last edited by grelbfarlk; 14 June 2024 at 02:43. |
14 June 2024, 14:13 | #24 |
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I think we entered the realm of off-topic.
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24 June 2024, 12:02 | #25 |
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02 July 2024, 22:56 | #26 |
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04 August 2024, 18:28 | #27 |
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Ok, and the story goes on. I was busy during the last weeks, two business trips, but
also lots of development on the openpci.library development. Here it is, the next version - please test if possible. https://eab.abime.net/attachment.php...1&d=1722788498 It extends support to the A1200 mediators - this requires the mmu.library for bankswitching the PCI windows - the Grex, the original Prometheus and the Firestorm. The A4000 Mediator was supported already. There are still a couple of restrictions you find in the readme, and please also follow the instructions in the readme. It also contains a bit more details on some design choices. In particular, it contains a "PCIInit" tool that goes into the MMU-Configuration file to cut down the MMU setup time by the help of the openpci.library. This implementation also creates new autoconfig IDs for the bridges and the PCI devices connected to it. Again, more detalis in the readme in the archive. Have fun! |
04 August 2024, 18:33 | #28 | |
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In addition, please note that the openpci.library *only* drills holes for PCI hardware it finds connected to the board. Thus, if the PPC or the hardware connected to it requires *additional* room in the 68K address space, this needs to be accquired correctly through the mmu.library. Patching mmu tables manually, or simply assuming that the entire 512MB of the prometheus addess space is accessible is not going to work. |
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04 August 2024, 21:23 | #29 |
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All pci bridges supported already, great job!
An ‘apocalypse’ (G4/450mHz) is around €100, plus the carrier board. I would donate €50 towards getting you one, I’m sure others would join. |
04 August 2024, 22:15 | #30 |
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Thanks for the great offer - though there is still a long way ahead of me with this library at the moment. Feedback of course greatly appreciated.
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05 August 2024, 04:49 | #31 | |
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We split this off into a different thread and Hedeon provided a fix here: https://eab.abime.net/showthread.php?t=76633&page=277 |
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05 August 2024, 22:03 | #32 |
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A couple of fixes later....
PCIInit was outright corrupt. Which is strange since I was pretty sure I tested it. If a MMU-requiring board was used in conjunction with PCIInit, this would not have worked. If the mmu.library was installed but no MMU was found, the library crashed. The latter fix I haven't really had time to debug fully, though it might be working. https://eab.abime.net/attachment.php...1&d=1722888029 |
06 August 2024, 15:13 | #33 |
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Thanks Thomas, great work and I'm so glad this area is getting the attention/rationalisation that it has badly needed! Will test on my Prometheus (firebird), A1200 Mediator and A1200TX mediator when I return from vacation later this month and report back my findings!
Last edited by pat_ctrl; 06 August 2024 at 16:00. |
06 August 2024, 20:56 | #34 |
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Probably not totally unexpected, the no-MMU version did not work, and parts of
the tear-down code were also corrupt. Yet, this is certainly not the last defect, but we're moving. https://eab.abime.net/attachment.php...1&d=1722970455 Thanks Toni for reporting this one. |
11 August 2024, 14:58 | #35 |
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Here is the result from this weekend. This version has now a preferences file in ENVARC:PCI-Configuration that allows to customize the library and the configured devices. It also fixes a bug in the list handling of devices. The description of the configuration file is found in the readme.
This version has now also successfully tested on an A4000 mediator and also on a prometheus Firestorm. I'm still requesting help getting this tested on an A1200 mediator and on a Grexx. |
11 August 2024, 19:14 | #36 |
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...and a quick update follows which fixes now the functions of the openPCI library to read and write configuration bytes. This should (hopefully) make some AHI drivers for PCI devices working. Test results welcome.
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17 August 2024, 16:09 | #37 |
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Thanks for all your work on this Thomas! I have a Mediator 1200 (orig) and a Mediator 1200TX, plus various Radeon and Voodoo 3/4 cards, so will be able to test with it when I'm back from vacation and give feedback.
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