Re: [PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().
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- To: David Daney <ddaney.cavm@xxxxxxxxx>
- Subject: Re: [PATCH v7 13/15] ACPI / processor: Add acpi_map_madt_entry().
- From: Catalin Marinas <catalin.marinas@xxxxxxx>
- Date: Wed, 25 May 2016 15:42:26 +0100
- Cc: Will Deacon <will.deacon@xxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, Mark Rutland <mark.rutland@xxxxxxx>, Tony Luck <tony.luck@xxxxxxxxx>, Fenghua Yu <fenghua.yu@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, "H. Peter Anvin" <hpa@xxxxxxxxx>, x86@xxxxxxxxxx, "Rafael J. Wysocki" <rjw@xxxxxxxxxxxxx>, Len Brown <lenb@xxxxxxxxxx>, Rob Herring <robh+dt@xxxxxxxxxx>, Frank Rowand <frowand.list@xxxxxxxxx>, Grant Likely <grant.likely@xxxxxxxxxx>, Robert Moore <robert.moore@xxxxxxxxx>, Lv Zheng <lv.zheng@xxxxxxxxx>, Hanjun Guo <hanjun.guo@xxxxxxxxxx>, Marc Zyngier <Marc.Zyngier@xxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx, linux-acpi@xxxxxxxxxxxxxxx, devel@xxxxxxxxxx, Robert Richter <rrichter@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, David Daney <david.daney@xxxxxxxxxx>
- In-reply-to: <1464129345-18985-14-git-send-email-ddaney.cavm@gmail.com>
- List-id: <linux-ia64.vger.kernel.org>
- References: <1464129345-18985-1-git-send-email-ddaney.cavm@gmail.com> <1464129345-18985-14-git-send-email-ddaney.cavm@gmail.com>
- User-agent: Mutt/1.5.23 (2014-03-12)
On Tue, May 24, 2016 at 03:35:43PM -0700, David Daney wrote:
> From: David Daney <david.daney@xxxxxxxxxx>
>
> 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@xxxxxxxxxx>
Acked-by: Catalin Marinas <catalin.marinas@xxxxxxx>
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