Thomas> Jes Sorensen wrote:
>> always be above the 1GB limit. In this case it simply means that
>> you are out of luck, yet another broken PCI device, and the driver
>> should simply print a warning and exit, without panicing the box.
Thomas> But why is kmalloc(GFP_DMA) returning any memory at all?
Thomas> Doesn't the definition of GFP_DMA imply that its bus address
Thomas> should lie below 16M?
Hmmm arch/alpha/mm/init.c has this:
if (tmp >= MAX_DMA_ADDRESS)
clear_bit(PG_DMA, &mem_map[MAP_NR(tmp)].flags);
My guess is that MAX_DMA_ADDRESS on the Pyrix is defined to be the
entire memory space.
Time to introduce GFP_DMA_24BIT, GFP_DMA_1GB and GFP_DMA_2GB to
support all those crappy devices on the market.
Jes
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