linux-kernel - Re: amdgpu didn't start with pci=nocrs parameter, get error "Fatal error during GPU init"

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Date:   Fri, 24 Feb 2023 13:38:49 +0500
From:   Mikhail Gavrilov <mikhail.v.gavrilov@...il.com>
To:     Christian König <ckoenig.leichtzumerken@...il.com>
Cc:     amd-gfx list <amd-gfx@...ts.freedesktop.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        "Deucher, Alexander" <Alexander.Deucher@....com>
Subject: Re: amdgpu didn't start with pci=nocrs parameter, get error "Fatal
 error during GPU init"

On Fri, Feb 24, 2023 at 12:13 PM Christian König
<ckoenig.leichtzumerken@...il.com> wrote:
>
> Hi Mikhail,
>
> this is pretty clearly a problem with the system and/or it's BIOS and
> not the GPU hw or the driver.
>
> The option pci=nocrs makes the kernel ignore additional resource windows
> the BIOS reports through ACPI. This then most likely leads to problems
> with amdgpu because it can't bring up its PCIe resources any more.
>
> The output of "sudo lspci -vvvv -s $BUSID_OF_AMDGPU" might help
> understand the problem

I attach both lspci for pci=nocrs and without pci=nocrs.

The differences for Cezanne Radeon Vega Series:
with pci=nocrs:
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Interrupt: pin A routed to IRQ 255
Region 4: I/O ports at e000 [disabled] [size=256]
Capabilities: [c0] MSI-X: Enable- Count=4 Masked-

Without pci=nocrs:
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Interrupt: pin A routed to IRQ 44
Region 4: I/O ports at e000 [size=256]
Capabilities: [c0] MSI-X: Enable+ Count=4 Masked-


The differences for Navi 22 Radeon 6800M:
with pci=nocrs:
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx-
Interrupt: pin A routed to IRQ 255
Region 0: Memory at f800000000 (64-bit, prefetchable) [disabled] [size=16G]
Region 2: Memory at fc00000000 (64-bit, prefetchable) [disabled] [size=256M]
Region 5: Memory at fca00000 (32-bit, non-prefetchable) [disabled] [size=1M]
AtomicOpsCtl: ReqEn-
Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
Address: 0000000000000000  Data: 0000

Without pci=nocrs:
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR- FastB2B- DisINTx+
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 103
Region 0: Memory at f800000000 (64-bit, prefetchable) [size=16G]
Region 2: Memory at fc00000000 (64-bit, prefetchable) [size=256M]
Region 5: Memory at fca00000 (32-bit, non-prefetchable) [size=1M]
AtomicOpsCtl: ReqEn+
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee00000  Data: 0000

> but I strongly suggest to try a BIOS update first.

This is the first thing that was done. And I am afraid no more BIOS updates.
https://rog.asus.com/laptops/rog-strix/2021-rog-strix-g15-advantage-edition-series/helpdesk_bios/

I also have experience in dealing with manufacturers' tech support.
Usually it ends with "we do not provide drivers for Linux".

-- 
Best Regards,
Mike Gavrilov.

View attachment "lspci-with-pci=nocrs.txt" of type "text/plain" (8178 bytes)

View attachment "lspci.txt" of type "text/plain" (8231 bytes)