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s390/kernel: add system calls for PCI memory access
authorAlexey Ishchuk <aishchuk@linux.vnet.ibm.com>
Fri, 14 Nov 2014 13:27:58 +0000 (14:27 +0100)
committerMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 19 Nov 2014 08:46:43 +0000 (09:46 +0100)
Add the new __NR_s390_pci_mmio_write and __NR_s390_pci_mmio_read
system calls to allow user space applications to access device PCI I/O
memory pages on s390x platform.

[ Martin Schwidefsky: some code beautification ]

Signed-off-by: Alexey Ishchuk <aishchuk@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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