Re: PCI DMA to small buffers on cache-incoherent arch

David S. Miller (davem@redhat.com)
Tue, 11 Jun 2002 00:43:05 -0700 (PDT)


From: "David S. Miller" <davem@redhat.com>
Date: Tue, 11 Jun 2002 00:36:25 -0700 (PDT)

The DMA_ALIGN attribute doesn't work, on some systems the PCI
cacheline size is determined at boot time not compile time.

Another note, it could be per-PCI controller what this cacheline size
is. We'll need to pass in a pdev to the alignment interfaces to
do this correctly.

So none of this can be done at compile time folks.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/