[SPARC64]: Temporarily remove IOMMU merging code.

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Changeset fde6a3c82d ("iommu sg merging:
sparc64: make iommu respect the segment size limits") broke sparc64
because whilst it added the segment limiting code to the first pass of
SG mapping (in prepare_sg()) it did not add matching code to the
second pass handling (in fill_sg())

As a result the two passes disagree where the segment boundaries
should be, resulting in OOPSes, DMA corruption, and corrupted
superblocks.

Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

David S. Miller 2008-02-06 03:50:26 -08:00 • committed by David S. Miller

parent b3ff81dd8a

commit 38192d52f1

6 changed files with 93 additions and 497 deletions

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2

arch/sparc64/kernel/Makefile

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144

arch/sparc64/kernel/iommu.c

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248

arch/sparc64/kernel/iommu_common.c

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26

arch/sparc64/kernel/iommu_common.h

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172

arch/sparc64/kernel/pci_sun4v.c

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2

include/asm-sparc64/io.h

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