XCHAL_KIO_SIZE
#define MAX_DMA_ADDRESS (PAGE_OFFSET + XCHAL_KIO_SIZE - 1)
&& offset - XCHAL_KIO_PADDR < XCHAL_KIO_SIZE)
&& offset - XCHAL_KIO_PADDR < XCHAL_KIO_SIZE)
if (off >= XCHAL_KIO_SIZE)
off -= XCHAL_KIO_SIZE;
va - XCHAL_KIO_CACHED_VADDR < XCHAL_KIO_SIZE) ||
va - XCHAL_KIO_BYPASS_VADDR < XCHAL_KIO_SIZE))