From: Karl Schimanek <Schimanek@posteo.de>
To: linuxppc-dev@lists.ozlabs.org
Subject: Re: amdgpu driver fails to initialize on ppc64le in 7.0-rc1 and newer
Date: Tue, 17 Mar 2026 22:34:43 +0000 [thread overview]
Message-ID: <4d28b579-52a8-44d7-a15b-2daee20bfa8a@posteo.de> (raw)
In-Reply-To: <ms06y93w.ritesh.list@gmail.com>
Hi Ritesh,
Dan,
I can reproduce the issue on my system running Chimera Linux with 4K
page size.
System details:
- Machine: RaptorCS Blackbird (POWER9, PowerNV)
- GPU: Sapphire Pulse Radeon RX 5500 XT (Navi 14)
- Kernel: 7.0-rc1
The failure is identical, ending in:
> amdgpu ... (-12) failed to allocate kernel bo
> amdgpu ... amdgpu_device_wb_init failed -12
> amdgpu ... Fatal error during GPU init
I also see:
> iommu: 64-bit OK but direct DMA is limited by 0
> dma_iommu_get_required_mask: returning bypass mask 0xfffffffffffffff
This is with 4K pages, so it does not seem to be limited to 64K page
configurations.
Regards,
Karl
next prev parent reply other threads:[~2026-03-17 22:41 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-13 13:23 amdgpu driver fails to initialize on ppc64le in 7.0-rc1 and newer Dan Horák
2026-03-15 4:25 ` Ritesh Harjani
2026-03-15 9:50 ` Dan Horák
2026-03-16 21:02 ` Gaurav Batra
2026-03-25 12:12 ` Ritesh Harjani
2026-03-25 14:56 ` Gaurav Batra
2026-03-25 16:28 ` Gaurav Batra
2026-03-25 17:42 ` Ritesh Harjani
2026-03-25 20:00 ` Dan Horák
2026-03-26 10:29 ` Dan Horák
2026-03-26 10:38 ` Ritesh Harjani
2026-03-26 13:37 ` Gaurav Batra
2026-03-17 11:43 ` Ritesh Harjani
2026-03-17 14:31 ` Dan Horák
2026-03-17 22:34 ` Karl Schimanek [this message]
2026-03-16 13:55 ` Alex Deucher
2026-03-23 0:30 ` Timothy Pearson
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