Messages in this thread | | | Date | Tue, 18 May 2010 13:54:12 -0700 | Subject | Re: [PATCH 5/7] arch/x86: Add array variants for setting memory to wc caching. | From | Venkatesh Pallipadi <> |
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On Tue, May 18, 2010 at 9:43 AM, H. Peter Anvin <h.peter.anvin@intel.com> wrote: > On 05/18/2010 02:34 AM, Dave Airlie wrote: >> On Thu, Apr 1, 2010 at 10:45 PM, Pauli Nieminen <suokkos@gmail.com> wrote: >>> Setting single memory pages at a time to wc takes a lot time in cache flush. To >>> reduce number of cache flush set_pages_array_wc and set_memory_array_wc can be >>> used to set multiple pages to WC with single cache flush. >>> >>> This improves allocation performance for wc cached pages in drm/ttm. >>> >> >> I've got this in drm-next for quite a while and almost forgot about >> it, I'm meant to be on holidays and I'd really like to just have Linus >> pull my tree, >> >> I had only one issue with this as we had some problems with doing it >> before but it looks like they've since been fixed in the x86 pat code >> a kernel or two ago so this patch should be fine now. >> >> its been well tested in drm-next on AGP machines by the author, >> >> any objections to this? >> >> Dave. > > Acked-by: H. Peter Anvin <hpa@zytor.com> > > Go ahead and push it; the patch is straightforward, and the author > (Venki) is reliable. > > -hpa > > P.S. Please Cc: all the x86 maintainers, not just Ingo. >
Patch actually from Pauli. Looks good.
Acked-by: Venkatesh Pallipadi <venki@google.com> -- 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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