Mike Karels ac89220b05 bcm2838_pci.c: Respect DMA limits of controller. ... Fixes for Raspberry Pi 4B PCIe / USB: - Pass through a DMA tag for the controller. - In theory the controller can access the lower 3 GB, but testing found that unreliable. OpenBSD also restricts DMA to the lowest 960 MiB. - Rename some constants to be a bit more meaningful. Submitted by: Robert Crowston, crowston at protonmail.com Reviewed by: mkarels, outside reviewers Differential Revision: https://reviews.freebsd.org/D26344		2020-09-12 23:49:43 +00:00
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bcm2835	bcm2838_pci.c: Respect DMA limits of controller.	2020-09-12 23:49:43 +00:00