On Fri, 2024-08-16 at 06:19 +1000, Dave Airlie wrote: > Fix this by using the non-coherent allocator instead, I think there > might be a better answer to this, but it involve ripping up some of > APIs using sg lists. Thanks for fixing this, but what is the relationshio between non-coherent DMA and sg_set_buf()? You're still calling sg_init_one() and hitting this check: #ifdef CONFIG_DEBUG_SG BUG_ON(!virt_addr_valid(buf)); #endif Does a non-coherent DMA buffer have a different kind of virtual address than a coherent DMA buffer?
