Andrea> On Fri, 10 Dec 1999, Thomas Sailer wrote:
>> Doesn't the definition of GFP_DMA imply that its bus address should
>> lie below 16M?
Andrea> No. On different alpha architectures you have different
Andrea> limits. Have a look at include/asm-alpha/dma.h. The GFP_DMA
Andrea> returns memory that must work for doing ISA_DMA.
Yes it does, ISA DMA by definition is limited to 24 bit on the bus
side afaik, it's a bit hard to feed a 64 bit address to a device which
only has space for 24 bit in it's registers.
Jes
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/