6.18: PCIe GPU testing (AMD and Intel Xe) #7113
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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 <[email protected]> Signed-off-by: Dave Stevenson <[email protected]>
Signed-off-by: Dave Stevenson <[email protected]>
Taken from https://github.com/chimera-linux/cports/blob/master/main/linux-stable/patches/xe-nonx86.patch Signed-off-by: Dave Stevenson <[email protected]>
Signed-off-by: Dave Stevenson <[email protected]>
Signed-off-by: Dave Stevenson <[email protected]>
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Also just to keep the breadcrumbs going:
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PR to create CI artifacts supporting AMD and Intel Xe GPUs.