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path: root/drivers/iommu/s390-iommu.c
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2017-08-30iommu/s390: Constify iommu_opsArvind Yadav1-2/+2
iommu_ops are not supposed to change at runtime. Functions 'bus_set_iommu' working with const iommu_ops provided by <linux/iommu.h>. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Acked-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-08-15iommu/s390: Add support for iommu_device handlingJoerg Roedel1-0/+35
Add support for the iommu_device_register interface to make the s390 hardware iommus visible to the iommu core and in sysfs. Acked-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2017-06-28iommu/s390: Use iommu_group_get_for_dev() in s390_iommu_add_device()Joerg Roedel1-10/+5
The iommu_group_get_for_dev() function also attaches the device to its group, so this code doesn't need to be in the iommu driver. Further by using this function the driver can make use of default domains in the future. Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-11-29iommu/s390: Drop duplicate header pci.hGeliang Tang1-1/+0
Drop duplicate header pci.h from s390-iommu.c. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2016-09-22iommu/s390: simplify registration of I/O address translation parametersSebastian Ott1-2/+1
When a new function is attached to an iommu domain we need to register I/O address translation parameters. Since commit 69eea95c ("s390/pci_dma: fix DMA table corruption with > 4 TB main memory") start_dma and end_dma correctly describe the range of usable I/O addresses. Simplify the code by using these values directly. 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>
2015-11-26iommu/s390: Fix sparse warningsSebastian Ott1-2/+2
Fix these warnings: CHECK drivers/iommu/s390-iommu.c drivers/iommu/s390-iommu.c:52:21: warning: symbol 's390_domain_alloc' was not declared. Should it be static? drivers/iommu/s390-iommu.c:76:6: warning: symbol 's390_domain_free' was not declared. Should it be static? Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
2015-11-09s390/pci_dma: handle dma table failuresSebastian Ott1-2/+21
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>
2015-10-06iommu/s390: Add iommu api for s390 pci devicesGerald Schaefer1-0/+337
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>
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