On Thu, 18 Mar 2021 14:44:17 -0300, Leonardo Bras wrote: > As of today, doing iommu_range_alloc() only for !largealloc (npages <= 15) > will only be able to use 3/4 of the available pages, given pages on > largepool not being available for !largealloc. > > This could mean some drivers not being able to fully use all the available > pages for the DMA window. > > [...]
Applied to powerpc/next. [1/1] powerpc/kernel/iommu: Use largepool as a last resort when !largealloc https://git.kernel.org/powerpc/c/fc5590fd56c9608f317729b59a56dad2a75d633f cheers