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authorRalph Campbell <ralph.campbell@qlogic.com>2007-03-16 00:44:58 +0300
committerRoland Dreier <rolandd@cisco.com>2007-04-19 07:20:56 +0400
commit0a5a83cffc03592c2102ad07b7532b596a16f8cd (patch)
tree92a760d41be44da4fc9438c45eae7218271712f7 /drivers/infiniband/hw/ipath/ipath_common.h
parent041eab9136d8325c332429df71d05ba3e0ea8ebc (diff)
downloadlinux-0a5a83cffc03592c2102ad07b7532b596a16f8cd.tar.xz
IB/ipath: Fix port sharing on powerpc
The port sharing feature mixed kernel virtual addresses as well as physical addresses for the offset used to describe the mmap address to map the InfiniPath hardware into user space. This had a conflict on powerpc. The new scheme converts it to a physical address so it doesn't conflict with chip addresses and yet still fits in 40/44 bits so it isn't truncated by 32-bit applications calling mmap64(). Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_common.h')
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