Messages in this thread | | | Subject | Re: DMA API issues | From | James Bottomley <> | Date | 18 Jun 2004 16:14:41 -0500 |
| |
On Fri, 2004-06-18 at 16:08, David Brownell wrote: > I'm not following you. This isn't using the PCI DMA calls. > These dots don't connect: different hardware needs different > solutions. How would those calls make dma_alloc_coherent work?
The statement was "That's dma_alloc_coherent at its core ... it should allocate from that 32K region." and what I was pointing out is that not all platforms can treat an on-chip memory region as a real memory area. That's why we have the iomem accessor functions.
James
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |