From: David S. Miller <davem@sunset.davemloft.net>
Date: Thu, 7 Jun 2007 23:58:22 +0000 (-0700)
Subject: [SPARC64]: Fix SBUS IRQ regression caused by PCI-E driver.
X-Git-Tag: v2.6.22-rc5~94^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ec4d18f219e71ef682fe2d7b9a6d121617fef6d5;p=pandora-kernel.git

[SPARC64]: Fix SBUS IRQ regression caused by PCI-E driver.

We used to access the 64-bit IRQ IMAP and ICLR registers of bus
controllers 4-bytes in and as a 32-bit register word, since only the
low 32-bits were relevant.  This seemed like a good idea at the time.

But the PCI-E controller requires full 8-byte 64-bit access to
these registers, so we switched over to accessing them fully.

SBUS was not adjusted properly, which broke interrupts completely.

Signed-off-by: David S. Miller <davem@davemloft.net>
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