linux-kernel - Re: [PATCH v6 00/14] ACPI NUMA support for ARM64

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Date:	Wed, 11 May 2016 02:43:11 +0200
From:	"Rafael J. Wysocki" <rafael@...nel.org>
To:	David Daney <ddaney.cavm@...il.com>
Cc:	Will Deacon <will.deacon@....com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<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>,
	"the arch/x86 maintainers" <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-ia64@...r.kernel.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	"devel@...ica.org" <devel@...ica.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Robert Richter <rrichter@...ium.com>,
	David Daney <david.daney@...ium.com>
Subject: Re: [PATCH v6 00/14] ACPI NUMA support for ARM64

On Wed, Apr 27, 2016 at 8:07 PM, David Daney <ddaney.cavm@...il.com> wrote:
> From: David Daney <david.daney@...ium.com>
>
> Based on git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git
> for-next/core branch at commit 643d703d2d2d ("arm64: compat: Check for
> AArch32 state")
>
> 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.
>
> v6 updates:
>
>  - Changed message printed in 13/14 to omit meaningless "cpu"
>    number. (noted by Dennis Chen and Hanjun Guo)
>
>  - New patch 7/14 to print different messages for NUMA disabled case.
>    (noted by Dennis Chen)
>
>  - Squashed two patches into 14/14.
>
>  - Added Reviewed-by to 4/14
>
> v5 updates:
>
>  - Fixed ia64 build failure by gating some unused functions with #if
>    CONFIG_{X86,ARM64}.
>
>  - Fixed section mismatch errors for X86 case.
>
>  - Removed unneeded #include from some files.
>
>  - Tested to build cleanly on ARM64, X86_64, IA64
>
> 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.
>
>
> David Daney (2):
>   arm64, numa: Cleanup NUMA disabled messages.
>   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 (1):
>   acpi, numa: Move acpi_numa_arch_fixup() to ia64 only

I need ACKs from the ARM64 maintainers on patches [6-7/13] and [13-14/14].

The rest looks good to me, so I can apply the series once the above
have been ACKed.

Thanks,
Rafael