On Mon, May 10, 2004 at 10:28:45PM +0900, Atsushi Nemoto wrote: > >> Hmm, many drivers use kmalloc and pci_map_single for DMA buffer. > >> So ARCH_KMALLOC_MINALIGN should be L1_CACHE_BYTES for non-coherent > >> system? > > ralf> No, those drivers are simply broken. dma_get_cache_alignment() > ralf> gives the mimimum alignment and width for DMA mappings and that > ralf> value is larger than kmalloc alignment in almost all cases. > > I see. Thank you for pointing out it. I must learn 2.6 DMA API > quickly ... This also applies to the 2.4 PCI DMA API. Ralf
