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>
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
index f295a7a..64fd644 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -26,6 +26,7 @@
*/
#include <linux/acpi.h>
+#include <linux/acpi_io.h>
#include <acpi/video.h>
#include "drmP.h"
@@ -476,7 +477,7 @@
return -ENOTSUPP;
}
- base = ioremap(asls, OPREGION_SIZE);
+ base = acpi_os_ioremap(asls, OPREGION_SIZE);
if (!base)
return -ENOMEM;