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From: Tejun Heo <tj@kernel.org>
To: linux-kernel@vger.kernel.org, x86@kernel.org, yinghai@kernel.org,
	brgerst@gmail.com, gorcunov@gmail.com, shaohui.zheng@intel.com,
	rientjes@google.com, mingo@elte.hu, hpa@linux.intel.com,
	ankita@in.ibm.com
Subject: [PATCHSET x86/numa] x86-64, NUMA: bring sanity to NUMA emulation
Date: Mon, 14 Feb 2011 20:28:28 +0100	[thread overview]
Message-ID: <1297711715-3086-1-git-send-email-tj@kernel.org> (raw)

Hello,

NUMA emulation is quite convoluted involving unnecessary mapping and
reverse mapping between apicids, PXMs, nodes and memory addresses.
This patchset tries to restore some sanity to the whole thing.

Tested on an opteron NUMA machine which can do both ACPI and AMD
configs.  All NUMA configs, emulations, !NUMA and UP work as expected.

This patchset is on top of tip/x86/numa[1] +
bring-sanity-to-NUMA-configuration patchset[2] and contains the
following 7 patches.

 0001-x86-64-NUMA-Trivial-changes-to-prepare-for-emulation.patch
 0002-x86-64-NUMA-Build-and-use-direct-emulated-nid-phys-n.patch
 0003-x86-64-NUMA-Make-emulation-code-build-numa_meminfo-a.patch
 0004-x86-64-NUMA-Wrap-node-ID-during-emulation.patch
 0005-x86-64-NUMA-Emulate-directly-from-numa_meminfo.patch
 0006-x86-64-NUMA-Unify-emulated-apicid-node-mapping-trans.patch
 0007-x86-64-NUMA-Unify-emulated-distance-mapping.patch

The patchset is available in the following git branch.

 git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git x86_64-numa-emu-unify

Diffstat follows.

 arch/x86/include/asm/acpi.h    |    6 
 arch/x86/include/asm/amd_nb.h  |    4 
 arch/x86/include/asm/numa_64.h |    1 
 arch/x86/mm/amdtopology_64.c   |   47 ----
 arch/x86/mm/numa_64.c          |  429 ++++++++++++++++++-----------------------
 arch/x86/mm/srat_64.c          |   87 --------
 6 files changed, 197 insertions(+), 377 deletions(-)

Thanks.

--
tejun

[1] eff9073790e1286aa12bf1c65814d3e0132b12e1 (x86: Rename incorrectly
    named parameter of numa_cpu_node())
[2] http://thread.gmane.org/gmane.linux.kernel/1099256/

             reply	other threads:[~2011-02-14 19:28 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-02-14 19:28 Tejun Heo [this message]
2011-02-14 19:28 ` [PATCH 1/7] x86-64, NUMA: Trivial changes to prepare for emulation updates Tejun Heo
2011-02-14 19:28 ` [PATCH 2/7] x86-64, NUMA: Build and use direct emulated nid -> phys nid mapping Tejun Heo
2011-02-15 16:36   ` [PATCH UPDATED " Tejun Heo
2011-02-14 19:28 ` [PATCH 3/7] x86-64, NUMA: Make emulation code build numa_meminfo and share the registration path Tejun Heo
2011-02-14 19:28 ` [PATCH 4/7] x86-64, NUMA: Wrap node ID during emulation Tejun Heo
2011-02-14 19:28 ` [PATCH 5/7] x86-64, NUMA: Emulate directly from numa_meminfo Tejun Heo
2011-02-14 19:28 ` [PATCH 6/7] x86-64, NUMA: Unify emulated apicid -> node mapping transformation Tejun Heo
2011-02-14 19:28 ` [PATCH 7/7] x86-64, NUMA: Unify emulated distance mapping Tejun Heo
2011-02-14 20:00 ` [PATCHSET x86/numa] x86-64, NUMA: bring sanity to NUMA emulation Yinghai Lu
2011-02-15  2:28   ` Ingo Molnar
2011-02-15  5:44     ` Yinghai Lu
2011-02-15  9:26   ` Tejun Heo

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