From: FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> Date: Sun, 28 Feb 2010 03:38:19 +0900 > When I proposed such approach (always use swiotlb) before, IIRC, > the objections were: > > - better to make allocation respect dma_mask. (I don't think that this > approach is possible since we don't know which device handles data > later when we allocate memory). And such objects might end up being processed by multiple devices with different DMA restrictions. > - swiotlb is not good for small systems since it allocates too much > memory (we can fix this though). Indeed. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
