From: Andi Kleen <ak@linux.intel.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
x86@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 4/6] x86: Add clear_page_nocache
Date: Thu, 9 Aug 2012 08:26:20 -0700 [thread overview]
Message-ID: <20120809152620.GH2644@tassilo.jf.intel.com> (raw)
In-Reply-To: <5023F1BC0200007800093EF0@nat28.tlf.novell.com>
> While on 64-bit this is fine, I fail to see how you avoid using the
> SSE2 instruction on non-SSE2 systems.
You're right, this needs a fallback path for 32bit non sse
(and fixing the ABI)
-Andi
--
ak@linux.intel.com -- Speaking for myself only
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WARNING: multiple messages have this Message-ID (diff)
From: Andi Kleen <ak@linux.intel.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
x86@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 4/6] x86: Add clear_page_nocache
Date: Thu, 9 Aug 2012 08:26:20 -0700 [thread overview]
Message-ID: <20120809152620.GH2644@tassilo.jf.intel.com> (raw)
In-Reply-To: <5023F1BC0200007800093EF0@nat28.tlf.novell.com>
> While on 64-bit this is fine, I fail to see how you avoid using the
> SSE2 instruction on non-SSE2 systems.
You're right, this needs a fallback path for 32bit non sse
(and fixing the ABI)
-Andi
--
ak@linux.intel.com -- Speaking for myself only
next prev parent reply other threads:[~2012-08-09 15:26 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-09 15:02 [PATCH v2 0/6] Avoid cache trashing on clearing huge/gigantic page Kirill A. Shutemov
2012-08-09 15:02 ` Kirill A. Shutemov
2012-08-09 15:02 ` Kirill A. Shutemov
2012-08-09 15:02 ` Kirill A. Shutemov
2012-08-09 15:02 ` [PATCH v2 1/6] THP: Use real address for NUMA policy Kirill A. Shutemov
2012-08-09 15:02 ` Kirill A. Shutemov
2012-08-09 15:02 ` Kirill A. Shutemov
2012-08-09 15:02 ` Kirill A. Shutemov
2012-08-09 15:02 ` [PATCH v2 2/6] mm: make clear_huge_page tolerate non aligned address Kirill A. Shutemov
2012-08-09 15:02 ` Kirill A. Shutemov
2012-08-09 15:02 ` Kirill A. Shutemov
2012-08-09 15:02 ` Kirill A. Shutemov
2012-08-09 15:03 ` [PATCH v2 3/6] THP: Pass real, not rounded, address to clear_huge_page Kirill A. Shutemov
2012-08-09 15:03 ` Kirill A. Shutemov
2012-08-09 15:03 ` Kirill A. Shutemov
2012-08-09 15:03 ` Kirill A. Shutemov
2012-08-09 15:03 ` [PATCH v2 4/6] x86: Add clear_page_nocache Kirill A. Shutemov
2012-08-09 15:03 ` Kirill A. Shutemov
2012-08-09 15:03 ` Kirill A. Shutemov
2012-08-09 15:03 ` Kirill A. Shutemov
2012-08-09 15:22 ` Jan Beulich
2012-08-09 15:22 ` Jan Beulich
2012-08-09 15:22 ` Jan Beulich
2012-08-09 15:22 ` Jan Beulich
2012-08-09 15:22 ` Jan Beulich
2012-08-09 15:26 ` Andi Kleen [this message]
2012-08-09 15:26 ` Andi Kleen
2012-08-13 11:43 ` Kirill A. Shutemov
2012-08-13 11:43 ` Kirill A. Shutemov
2012-08-13 11:43 ` Kirill A. Shutemov
2012-08-13 12:02 ` Jan Beulich
2012-08-13 12:02 ` Jan Beulich
2012-08-13 12:02 ` Jan Beulich
2012-08-13 12:02 ` Jan Beulich
2012-08-13 12:02 ` Jan Beulich
2012-08-13 16:27 ` Andi Kleen
2012-08-13 16:27 ` Andi Kleen
2012-08-13 16:27 ` Andi Kleen
2012-08-13 16:27 ` Andi Kleen
2012-08-13 17:04 ` Borislav Petkov
2012-08-13 17:04 ` Borislav Petkov
2012-08-13 17:04 ` Borislav Petkov
2012-08-13 17:04 ` Borislav Petkov
2012-08-13 19:07 ` Kirill A. Shutemov
2012-08-13 19:07 ` Kirill A. Shutemov
2012-08-13 19:07 ` Kirill A. Shutemov
2012-08-09 15:23 ` H. Peter Anvin
2012-08-09 15:23 ` H. Peter Anvin
2012-08-09 15:23 ` H. Peter Anvin
2012-08-09 15:23 ` H. Peter Anvin
2012-08-09 15:03 ` [PATCH v2 5/6] mm: make clear_huge_page cache clear only around the fault address Kirill A. Shutemov
2012-08-09 15:03 ` Kirill A. Shutemov
2012-08-09 15:03 ` Kirill A. Shutemov
2012-08-09 15:03 ` Kirill A. Shutemov
2012-08-09 15:03 ` [PATCH v2 6/6] x86: switch the 64bit uncached page clear to SSE/AVX v2 Kirill A. Shutemov
2012-08-09 15:03 ` Kirill A. Shutemov
2012-08-09 15:03 ` Kirill A. Shutemov
2012-08-09 15:03 ` Kirill A. Shutemov
2012-08-09 15:28 ` Jan Beulich
2012-08-09 15:28 ` Jan Beulich
2012-08-09 15:28 ` Jan Beulich
2012-08-09 15:28 ` Jan Beulich
2012-08-09 15:28 ` Jan Beulich
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