s390/pci: use virtual memory for iommu bitmap

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The bitmap used to mark dma mappings can be quite large on systems
with huge amounts of memory. Use virtual memory for this bitmap.

Suggested-by: Alexander Schmidt <alexschm@de.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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Sebastian Ott 2013-08-29 20:31:50 +02:00 • committed by Martin Schwidefsky

parent eb072a7996

commit 2245932155

1 changed files with 3 additions and 9 deletions

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arch/s390/pci/pci_dma.c

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