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authorBjorn Helgaas <bjorn.helgaas@hp.com>2009-05-21 15:49:59 -0600
committerLen Brown <len.brown@intel.com>2009-05-27 21:25:00 -0400
commit8cb24c8fd70ea8431744de1ca0ca34ab45fbbdaa (patch)
treecf7d65c56112edda3fb92d0e61349339753c918e /MAINTAINERS
parentcd86a536c81e9300d984327517548ca0652eebf9 (diff)
PNPACPI: parse Extended Address Space Descriptors
Extended Address Space Descriptors are new in ACPI 3.0 and allow the BIOS to communicate device resource cacheability attributes (write-back, write-through, uncacheable, etc) to the OS. Previously, PNPACPI ignored these descriptors, so if a BIOS used them, a device could be responding at addresses the OS doesn't know about. This patch adds support for these descriptors in _CRS and _PRS. We don't attempt to encode them for _SRS (just like we don't attempt to encode the existing 16-, 32-, and 64-bit Address Space Descriptors). Unfortunately, I don't have a way to test this. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
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