On Tuesday 12 May 2009, Alan Cox wrote:
> Nakked-by: Alan Cox <[email protected]>
>
> Almost every PATA adapter can fall back to PIO, many are PIO only. We
> need a rather cleaner way to sort this.
Currently, the only architectures that don't set HAS_DMA are h8300, m32r
m68k (except SUN3 and Coldfire), microblaze and s390.
s390 will never get it, microblaze is currently implementing dma-mapping.h.
The other three are still using drivers/ide instead of drivers/ata.
One way to fix this would be to implement dma-mapping.h in h8300, m32r and
m68k and leave !HAS_DMA as the obscure s390 case (this one already can't
use ATA because of !HAS_MMIO).
The other way would be to add some #ifdef CONFIG_HAS_DMA in libata-core.c
and sas_ata.c.
Arnd <><
Arnd <><
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