From: Michael Ellerman <michael@ellerman.id.au>
Date: Tue, 8 May 2007 02:58:36 +0000 (+1000)
Subject: [POWERPC] MPIC MSI allocator
X-Git-Tag: v2.6.22-rc1~358^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a7de7c74227edda719b257eb15aecd73790ff894;p=pandora-kernel.git

[POWERPC] MPIC MSI allocator

To support MSI on MPIC we need a way to reserve and allocate hardware irq
numbers, this patch implements an allocator for that purpose.

New firmware platforms must define a "msi-available-ranges" property on their
MPIC node for MSI to work. For U3/U4 we do a best-guess setup.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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