From: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
Date: Sun, 23 Jan 2011 18:17:17 +0000 (+0000)
Subject: drm/i915: Use consistent mappings for OpRegion between ACPI and i915
X-Git-Tag: v2.6.38-rc3~65^2^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b705120e4198315f4ae043de06c62f65e0851fd3;p=pandora-kernel.git

drm/i915: Use consistent mappings for OpRegion between ACPI and i915

The opregion is a shared memory region between ACPI and the graphics
driver. As the ACPI mapping has been changed to cachable in commit
6d5bbf00d251cc73223a71422d69e069dc2e0b8d, mapping the intel opregion
non-cachable now fails. As no bus-master hardware is involved in the
opregion, cachable map should do no harm.

Tested on a Fujitsu Lifebook P8010.

Signed-off-by: Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de>
[ickle: convert to acpi_os_ioremap for consistency]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
---

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