linux-kernel - Re: [PATCH v7 13/15] ACPI / processor: Add acpi_map_madt

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Message-ID: <20160525144225.GF5996@e104818-lin.cambridge.arm.com>
Date:	Wed, 25 May 2016 15:42:26 +0100
From:	Catalin Marinas <catalin.marinas@....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>,
	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, Robert Richter <rrichter@...ium.com>,
	linux-kernel@...r.kernel.org, David Daney <david.daney@...ium.com>
Subject: Re: [PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().

On Tue, May 24, 2016 at 03:35:43PM -0700, David Daney wrote:
> From: David Daney <david.daney@...ium.com>
> 
> Follow-on arm64 ACPI/NUMA patches need to map MADT entries very early
> (before kmalloc is usable).
> 
> Add acpi_map_madt_entry() which, indirectly, uses
> early_memremap()/early_memunmap() to access the table and parse out
> the mpidr.  The existing implementation of map_madt_entry() is
> modified to take a pointer to the MADT as a parameter and the callers
> adjusted.
> 
> Signed-off-by: David Daney <david.daney@...ium.com>

Acked-by: Catalin Marinas <catalin.marinas@....com>