Am 25.03.25 um 00:07 schrieb Bert Karwatzki: > Here's the dmesg from linux-next-6.14-rc7-next20250321 (CONFIG_PCI_P2PDMA not > set) > The memory ranges of (afe00000000-affffffffff) or (3ffe00000000-3fffffffffff) > are > mentioned in neither of them.
Ugh, next time either in two mails or as attachment please. I had to separate the logs manually again. The BIOS programs multiple root PCIe resources: [ 0.310962] [ T1] pci_bus 0000:00: root bus resource [mem 0x000a0000-0x000dffff window] [ 0.310963] [ T1] pci_bus 0000:00: root bus resource [mem 0xf0000000-0xfcffffff window] [ 0.310965] [ T1] pci_bus 0000:00: root bus resource [mem 0x1010000000-0xffffffffff window] But by default all BARs end up in the 0xf0000000-0xfcffffff window and are so accessible to the iGPU. So I don't see a reason why dma_addressing_limited() should return true. Regards, Christian.
