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Re: [patch 2/2] reduce tlb/cache flush times of agpgart memory allocation
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From: Ingo Molnar
Subject:
Re: [patch 2/2] reduce tlb/cache flush times of agpgart memory allocation
Date: Friday, August 15, 2008 - 7:43 am
* Arjan van de Ven <arjan@infradead.org> wrote:
quoted text
> On Fri, 15 Aug 2008 16:31:31 +0200 > Ingo Molnar <mingo@elte.hu> wrote: > > > > > * Shaohua Li <shaohua.li@intel.com> wrote: > > > > > To reduce tlb/cache flush, makes agp memory allocation do one flush > > > after all pages in a region are changed to uc. > > > > > > All agp drivers except agp-sgi uses agp_generic_alloc_page() for > > > .agp_alloc_page, so the patch should work for them. agp-sgi is only > > > for ia64, so not a problem too. > > > > applied to tip/x86/pat - thanks! > > > > I've Cc:-ed more PAT folks - any objections? > > > > it really needs something else instead; it needs airlied's array > allocator otherwise you hit the second wall as well (the pat checks > per page) > > in reality an array version of ioremap (or set_pages_X) is what is > needed
ok, agreed. Ingo --
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Messages in current thread:
[patch 2/2] reduce tlb/cache flush times of agpgart memory ...
, Shaohua Li
, (Sun Aug 3, 11:51 pm)
Re: [patch 2/2] reduce tlb/cache flush times of agpgart me ...
, Ingo Molnar
, (Fri Aug 15, 7:31 am)
Re: [patch 2/2] reduce tlb/cache flush times of agpgart me ...
, Arjan van de Ven
, (Fri Aug 15, 7:40 am)
Re: [patch 2/2] reduce tlb/cache flush times of agpgart me ...
, Ingo Molnar
, (Fri Aug 15, 7:43 am)
RE: [patch 2/2] reduce tlb/cache flush times of agpgart me ...
, Li, Shaohua
, (Sun Aug 17, 6:21 pm)
Re: [patch 2/2] reduce tlb/cache flush times of agpgart me ...
, Arjan van de Ven
, (Sun Aug 17, 8:56 pm)
RE: [patch 2/2] reduce tlb/cache flush times of agpgart me ...
, Li, Shaohua
, (Sun Aug 17, 11:19 pm)
Re: [patch 2/2] reduce tlb/cache flush times of agpgart me ...
, Ingo Molnar
, (Mon Aug 18, 1:03 am)
Re: [patch 2/2] reduce tlb/cache flush times of agpgart me ...
, H. Peter Anvin
, (Mon Aug 18, 10:18 am)
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