On Fri, Feb 18, 2022 at 01:39:46PM +0200, Mikko Perttunen wrote: > + > +/* > + * Due to an issue with T194 NVENC, only 38 bits can be used. > + * Anyway, 256GiB of IOVA ought to be enough for anyone. > + */ > +static dma_addr_t context_device_dma_mask = DMA_BIT_MASK(38); You need a mask per device. Please don't share the same variable for multiple masks. > +EXPORT_SYMBOL(host1x_context_alloc); All this low-level code really should be EXPORT_SYMBOL_GPL.
