linux-kernel - Re: [PATCH v4 00/14] ACPI NUMA support for ARM64

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Message-ID: <57167C71.5010800@caviumnetworks.com>
Date:	Tue, 19 Apr 2016 11:44:01 -0700
From:	David Daney <ddaney@...iumnetworks.com>
To:	David Daney <ddaney.cavm@...il.com>
CC:	Will Deacon <will.deacon@....com>,
	<linux-arm-kernel@...ts.infradead.org>,
	Mark Rutland <mark.rutland@....com>,
	Catalin Marinas <catalin.marinas@....com>,
	Tony Luck <tony.luck@...el.com>,
	Fenghua Yu <fenghua.yu@...el.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, <x86@...nel.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Len Brown <lenb@...nel.org>, Rob Herring <robh+dt@...nel.org>,
	Frank Rowand <frowand.list@...il.com>,
	Grant Likely <grant.likely@...aro.org>,
	Robert Moore <robert.moore@...el.com>,
	Lv Zheng <lv.zheng@...el.com>,
	Hanjun Guo <hanjun.guo@...aro.org>,
	Marc Zyngier <Marc.Zyngier@....com>,
	<linux-ia64@...r.kernel.org>, <linux-acpi@...r.kernel.org>,
	<devel@...ica.org>, <linux-kernel@...r.kernel.org>,
	Robert Richter <rrichter@...ium.com>,
	David Daney <david.daney@...ium.com>
Subject: Re: [PATCH v4 00/14] ACPI NUMA support for ARM64

There is a build  problem on ia64 that slipped by.  It is easy to 
correct, so I will have to send another version of the patches.

Sorry for the noise,
David Daney


On 04/18/2016 02:13 PM, David Daney wrote:
> From: David Daney <david.daney@...ium.com>
>
> Based on v16 of device-tree NUMA patch set for arm64 [1],this patch
> set introduce the ACPI based configuration to provide NUMA
> information.
>
> ACPI 5.1 already introduced NUMA support for ARM64, which can get the
> NUMA domain information from SRAT and SLIT table, so parse those two
> tables to get mappings from cpu/mem to numa node configuration and
> system locality.
>
> v4 updates:
>
>   - Updated from Hanjun Guo's v3 patches.
>
>   - Rebased on top of v16 of device-tree NUMA patches.
>
>   - Reordered some of the changes so that we don't introduce code and
>     then change it several times in the patch set.  New code is
>     introduced in its final form.  Code reused from x86 is first moved
>     with no change, and then a separate patch to make any needed
>     changes.
>
>   - code that is used only by ia64, moved to architecture specific
>     files.
>
> v3 updates:
>   - Deep investigation about the ACPI_DEBUG_PRINT() and remvoe
>     that for acpi/numa.c (patch 2/12)
>
>   - Remove the duplicate NULL check for table print (patch 3/12)
>
>   - Introduce CONFIG_ACPI_HAS_NUMA_ARCH_FIXUP to remove duplicate
>     dummy function for acpi_numa_arch_fixup()
>
>   - Solve the problem that the mapping from logical cpu to numa node
>     is wrong which spotted out by Lorenzo
>
>   - cleanups for x86 and move acpi_numa_slit_init() and some other
>     functions to common place, then reduce the duplicate of x86
>     and arm64 (patch 7-12/12).
>
>   - rebased on top of 4.4 and Ganapat's v9 patch set.
>
> [1]: https://lkml.org/lkml/2016/4/8/571
>
> David Daney (1):
>    acpi, numa, srat: Improve SRAT error detection and add messages.
>
> Hanjun Guo (11):
>    acpi, numa: Use pr_fmt() instead of printk
>    acpi, numa: Replace ACPI_DEBUG_PRINT() with pr_debug()
>    acpi, numa: remove duplicate NULL check
>    acpi, numa: move acpi_numa_slit_init() to drivers/acpi/numa.c
>    arm64, numa: rework numa_add_memblk()
>    x86, acpi, numa: cleanup acpi_numa_processor_affinity_init()
>    acpi, numa: move bad_srat() and srat_disabled() to
>      drivers/acpi/numa.c
>    acpi, numa: remove unneeded acpi_numa=1
>    acpi, numa: Move acpi_numa_memory_affinity_init() to
>      drivers/acpi/numa.c
>    arm64, acpi, numa: NUMA support based on SRAT and SLIT
>    acpi, numa: Enable ACPI based NUMA on ARM64
>
> Robert Richter (2):
>    acpi, numa: Move acpi_numa_arch_fixup() to ia64 only
>    arm64, acpi, numa: Default enable ACPI_NUMA with NUMA
>
>   arch/arm64/include/asm/acpi.h |   8 ++
>   arch/arm64/include/asm/numa.h |   2 +
>   arch/arm64/kernel/Makefile    |   1 +
>   arch/arm64/kernel/acpi_numa.c | 149 +++++++++++++++++++++++++++++
>   arch/arm64/kernel/smp.c       |   2 +
>   arch/arm64/mm/numa.c          |  17 ++--
>   arch/ia64/include/asm/acpi.h  |   3 +
>   arch/ia64/kernel/acpi.c       |   2 +-
>   arch/ia64/kernel/setup.c      |   1 +
>   arch/x86/include/asm/acpi.h   |   1 -
>   arch/x86/mm/numa.c            |   2 +-
>   arch/x86/mm/srat.c            | 115 +----------------------
>   drivers/acpi/Kconfig          |   4 +-
>   drivers/acpi/numa.c           | 211 +++++++++++++++++++++++++++++++-----------
>   drivers/of/of_numa.c          |   4 +-
>   include/acpi/acpi_numa.h      |  12 +++
>   include/linux/acpi.h          |  18 +++-
>   17 files changed, 370 insertions(+), 182 deletions(-)
>   create mode 100644 arch/arm64/kernel/acpi_numa.c
>