6.18: PCIe GPU testing (AMD and Intel Xe) #7113
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Also just to keep the breadcrumbs going:
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popcornmix
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Branch rebased to keep it relevant. I've just noted https://lore.kernel.org/dri-devel/20250613-upstream-xe-non-4k-v2-v2-0-934f82249f8a@aosc.io/ I don't see it having been merged, so at some point it would be useful to test it as the thread appears to have stalled. |
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Various PCIe controllers on ARM64 platforms don't support cache snooping, which leads to numerous issues when attempting to use PCIe graphics cards. Switching ttm_prot_from_caching to return pgprot_dmacoherent for ttm_cached pages solves the issue, albeit with a performance hit. There is a second check in ttm_prot_from_caching that also needs updating. Signed-off-by: Yang Bo <bo.yang@smail.nju.edu.cn> Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Also includes SND_HDA_* modules for audio on AMD GPUs. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Taken from https://github.com/chimera-linux/cports/blob/master/main/linux-stable/patches/xe-nonx86.patch Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
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Branch rebased. |
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I guess you don't want noise and user testing here. But just as a thumbs up, I've installed this kernel on a rpi5 with oculink-connected RX 6800 XT, and the combo seems rock-solid from a user perspective. I've run multiple games and benchmarks, as well as Jeffs llama examples both in chat- and in web-server mode. Not a single hickup. The card even seems to go into suspend mode and recovers on use. |
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With the old PR on 6.17.x, I was able to get the AI Pro R9700 working. With this PR on 6.18.x, I get: Maybe the AMD driver in 6.18 has a new thing where it forces a BAR resize, and that's currently failing? The only thing I could find that's remotely related is this patch. Or could be related to this post: [REGRESSION] amdgpu fails to load external RX 580 since PCI: Allow relaxed bridge window tail sizing. The RX 7900 XT is loading fine, however. |
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PR to create CI artifacts supporting AMD and Intel Xe GPUs.