From 43fe1abc18a237581663a51da4c2f8e57684c223 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@linux.intel.com>
Date: Mon, 13 Apr 2015 14:11:44 +0800
Subject: [PATCH] x86/uv: Use hierarchical irqdomain to manage UV interrupts

Enhance UV code to support hierarchical irqdomain, it helps to make
the architecture more clear.

We construct hwirq based on mmr_blade and mmr_offset, but mmr_offset
has type unsigned long, it may exceed the range of irq_hw_number_t. So
help about the way to construct hwirq based on mmr_blade and
mmr_offset is welcomed!

Folded a patch from Dimitri Sivanich <sivanich@sgi.com> to fix a bug
on UV platforms, please refer to:
http://lkml.org/lkml/2014/12/16/351

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Cc: Sander Eikelenboom <linux@eikelenboom.it>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Russ Anderson <rja@sgi.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Link: http://lkml.kernel.org/r/1428905519-23704-23-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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