[RFC PATCH 2/4] ACPI/IORT: Set bus DMA mask as appropriate
From: hch@lst.de (Christoph Hellwig)
Date: 2018-07-10 18:18:44
Also in:
linux-acpi, linux-devicetree, linux-iommu, lkml
On Tue, Jul 10, 2018 at 06:17:17PM +0100, Robin Murphy wrote:
When an explicit DMA limit is described by firmware, we need to remember it regardless of how drivers might subsequently update their devices' masks. The new bus_dma_mask field does that.
Shouldn't we also stop presetting the dma mask after this?