ACPICA: avoid "Info: mapping multiple BARs. Your kernel is fine."

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Ensure that memory mappings created for operation regions
do not cross page boundaries.  Crossing a page boundary
while mapping regions can cause warnings if the pages have different attributes.

Such regions are probably BIOS bugs, and this is the workaround.

http://bugzilla.kernel.org/show_bug.cgi?id=14445

[Kernel summit hacking hour]

Signed-off-by: Bob Moore <robert.moore@intel.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

...

This commit is contained in:

Bob Moore 2009-10-22 09:11:11 +08:00 • committed by Len Brown

parent b419148e56

commit d410ee5109

2 changed files with 27 additions and 12 deletions

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4

drivers/acpi/acpica/acconfig.h

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35

drivers/acpi/acpica/exregion.c

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