On Sat, 2005-06-11 at 14:54 +0100, Matthew Wilcox wrote: > On Fri, Jun 10, 2005 at 07:08:11PM -0400, Lee Revell wrote: > > Should I just add everything from 24 to 63? > > Actually, it'd be useful to have a central list of what DMA masks devices > really take. It might provide some arguments for changing the zone allocater. > OK, patch attached. I don't have time to cover every case, maybe someone else can run with this. Lee Summary: Add DMA mask constants other than 32 and 64 bit Signed-Off-By: Lee Revell <rlrevell@xxxxxxxxxxx> --- linux-2.6.12-rc5-k7/include/linux/dma-mapping.h-orig 2005-06-15 14:14:04.000000000 -0400 +++ linux-2.6.12-rc5-k7/include/linux/dma-mapping.h 2005-06-15 14:17:13.000000000 -0400 @@ -14,7 +14,12 @@ }; #define DMA_64BIT_MASK 0xffffffffffffffffULL +#define DMA_40BIT_MASK 0x000000ffffffffffULL +#define DMA_39BIT_MASK 0x0000007fffffffffULL #define DMA_32BIT_MASK 0x00000000ffffffffULL +#define DMA_31BIT_MASK 0x000000007fffffffULL +#define DMA_30BIT_MASK 0x000000003fffffffULL +#define DMA_29BIT_MASK 0x000000001fffffffULL #include <asm/dma-mapping.h> - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
