On Tue, Dec 14, 2021 at 11:07:34AM -0600, john.p.donnelly@xxxxxxxxxx wrote: > Is CONFIG_ZONE_DMA even needed anymore in x86_64 ? Yes. There are still plenty of addressing challenged devices, mostly ISA-like but also a few PCI/PCIe ones.
On Tue, Dec 14, 2021 at 11:07:34AM -0600, john.p.donnelly@xxxxxxxxxx wrote: > Is CONFIG_ZONE_DMA even needed anymore in x86_64 ? Yes. There are still plenty of addressing challenged devices, mostly ISA-like but also a few PCI/PCIe ones.
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