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
6d5bbf00d2
, 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>
This commit is contained in:
parent
8a327f23e2
commit
b705120e41
1 changed files with 2 additions and 1 deletions
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@ -26,6 +26,7 @@
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*/
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#include <linux/acpi.h>
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#include <linux/acpi_io.h>
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#include <acpi/video.h>
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#include "drmP.h"
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@ -476,7 +477,7 @@ int intel_opregion_setup(struct drm_device *dev)
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return -ENOTSUPP;
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}
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base = ioremap(asls, OPREGION_SIZE);
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base = acpi_os_ioremap(asls, OPREGION_SIZE);
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if (!base)
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return -ENOMEM;
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