Re: [RFC] etnaviv: missing dma_mask

On Tue, Aug 14, 2018 at 05:12:25PM +0300, Eugeniy Paltsev wrote:

Hi Lucas, Christoph,

After switching ARC to generic dma_noncoherent cache ops etnaviv driver start failing on dma maping functions because of dma_mask lack.

So I'm wondering is it valid case to have device which is DMA capable and doesn't have dma_mask set?

If not, then I guess something like that should work (at least it works for ARC):

This looks ok is a minimal fix:

Reviewed-by: Christoph Hellwig hch@lst.de

But why doesn't this device have a dma-range property in DT?