Messages in this thread | | | Date | Thu, 18 Oct 2012 20:54:37 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH 0/3] perf_event: enable overflow interrupts on KNC |
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* Vince Weaver <vincent.weaver@maine.edu> wrote:
> I looked into getting a 3.7 kernel up and going on the KNC > board, but the diff between Intel's release and stock > 2.6.34.11 has 70k lines. Much of that is kdb, but there's > also a lot of low-level changes too, some of it due to the > fact that KNC is 64-bit x86 but has no support for SSE (so you > need to handle that properly or none of your userspace will > run).
Getting that support upstream would definitely be useful, so if you feel so inclined splitting out (or creating anew) the required patches ...
I don't know how it's structured, but making the !SSE distinction runtime would be strongly preferred over any compile-time .config switchery. Otherwise, the guiding principle is that we'll do whatever it takes to support the hardware, with the reasonably best possible cleanliness.
Thanks,
Ingo
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