On Fri, Apr 26, 2013 at 09:31:06PM +0100, Laura Abbott wrote: > Currently, of_platform_device_create_pdata always sets the > coherent DMA mask to 32 bits. On ARM systems without CONFIG_ZONE_DMA, > arm_dma_limit gets set to ~0 or 0xFFFFFFFFFFFFFFFF on LPAE based > systems. Since arm_dma_limit represents the smallest dma_mask > on the system, the default of 32 bits prevents any dma_coherent > allocation from succeeding unless clients manually set the > dma mask first. Rather than make every client on an LPAE system set > the mask manually, account for the size of dma_addr_t when setting > the coherent mask. > > Signed-off-by: Laura Abbott <[email protected]>
Looks good. Acked-by: Catalin Marinas <[email protected]> _______________________________________________ devicetree-discuss mailing list [email protected] https://lists.ozlabs.org/listinfo/devicetree-discuss
