Messages in this thread | | | Subject | Re: Fast 64-bit atomic writes (SSE?) | From | Roland Dreier <> | Date | 20 Mar 2004 06:48:37 -0800 |
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Andi> Better is probably to use CMPXCHG8, which avoids all of Andi> this.
Sorry to follow up again so soon, but I just looked up CMPXCHG8, and I don't see how to use it to write to write-only device memory. Can you elaborate a little?
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