On Mon, 11 Nov 2024 07:56:30 +0100, Janne Grunau wrote: > The changes in "Make LMB memory map global and persistent" [1] break > mapping DMA memory in the USB xHCI driver when using the apple_dart > iommu present on Apple silicon systems. > > The IOVA space used by the u-boot driver (low 4GB) and physical memory > do not overlap. The physical memory on this systems starts depending on > the SoC either at 0x10_0000_0000 or 0x100_0000_0000. It make no sense to > manage these distinct regions in a single LMB map. In addition every > device has its own iommu and IO address space so sharing a single memory > map between all iommu instances is not necessary. > > [...]
Applied to u-boot/master, thanks! -- Tom
