Messages in this thread | | | Date | Sat, 27 Sep 2003 16:36:35 -0700 | From | "David S. Miller" <> | Subject | Re: NS83820 2.6.0-test5 driver seems unstable on IA64 |
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On Sat, 27 Sep 2003 06:26:40 +0200 Andi Kleen <ak@muc.de> wrote:
> You handle misalignment->misalignment copies with zero or small cost - > when both source and destination have the same misalignment. I guess > you do that by just aligning the pointer at the beginning of the > function. That works as long as both source and destination have > the same misalignment.
Nope, different alignments are fully optimized as well.
Sparc64 VIS has special instructions so that you can handle all of these different src/dst alignment cases and still use the 64-byte-at-a-time cache bypassing loads and stores. - 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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