Messages in this thread | | | Date | Wed, 12 Jun 2002 11:06:39 +0200 | From | Pavel Machek <> | Subject | Re: PCI DMA to small buffers on cache-incoherent arch |
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Hi!
> 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.
But upper bound is certainly known at compile time, right? Pavel -- (about SSSCA) "I don't say this lightly. However, I really think that the U.S. no longer is classifiable as a democracy, but rather as a plutocracy." --hpa - 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/
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