On Tue, Nov 08, 2022 at 11:03:31AM +0100, Christoph Hellwig wrote: > On Tue, Nov 08, 2022 at 09:52:15AM +0000, Catalin Marinas wrote: > > Since it's hard to guess the optimal swiotlb buffer for such platforms, > > I think a follow-up step would be to use the DMA coherent pool for > > bouncing if no swiotlb buffer is available. At least the pool can grow > > dynamically. Yet another option would be to increase the swiotlb buffer > > at run-time but it has an overhead for is_swiotlb_buffer(). > > Alex said he wanted to look into growing the swiotlb buffer on demand > for other reason, so adding him to Cc to check if there has been any > progress on that. Hi Alex, Did you get a chance to look into this? If so, have you been able to make progress on being able to grow the SWIOTLB buffer on demand? Thanks, Isaac
