IB/ehca: Use remap_4k_pfn() to map firmware contexts to user space

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Use Paul's new remap_4k_pfn() function to map our 4K firmware contexts
into user space on 64K-page machines without exposing neighboring
firmware contexts. Return the context's offset within a 64K page to
user space so it can determine the proper virtual address.

For details about remap_4k_pfn(), see commit 721151d0 or
http://patchwork.ozlabs.org/linuxppc/patch?id=10281

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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This commit is contained in:

Hoang-Nam Nguyen 2007-09-11 15:31:06 +02:00 • committed by Roland Dreier

parent 5281a4b8a0

commit e390d3b52f

4 changed files with 10 additions and 4 deletions

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4

drivers/infiniband/hw/ehca/ehca_classes.h

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2

drivers/infiniband/hw/ehca/ehca_cq.c

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2

drivers/infiniband/hw/ehca/ehca_qp.c

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6

drivers/infiniband/hw/ehca/ehca_uverbs.c

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