Re: [PATCH 0/5 v2] Fix NVMe driver support on Power with 32-bit DMA
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2015-10-02 21:20:26
Also in:
linux-nvme, lkml
On Fri, 2015-10-02 at 13:09 -0700, Nishanth Aravamudan wrote:
1) add a generic dma_get_page_shift implementation that just returns PAGE_SHIFT
So you chose to return the granularity of the iommu to the driver rather than providing a way for the driver to request a specific alignment for DMA mappings. Any specific reason ? Cheers, Ben.