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3 Commits

Author SHA1 Message Date
Sebastian Ott
66728eeea6 s390/pci_dma: handle dma table failures 
We use lazy allocation for translation table entries but don't handle
allocation (and other) failures during translation table updates.

Handle these failures and undo translation table updates when it's
meaningful.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2015-11-09 09:10:49 +01:00
Gerald Schaefer
8128f23c43 iommu/s390: Add iommu api for s390 pci devices 
This adds an IOMMU API implementation for s390 PCI devices.

Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
 2015-10-06 12:20:24 +02:00
Jan Glauber
828b35f60e s390/pci: DMA support 
Add DMA IOMMU support using 4K page table entries. Implement dma_map_ops.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
 2012-11-30 17:47:23 +01:00