diff options
| author |   Alexey Ishchuk <aishchuk@linux.vnet.ibm.com> | 2014-11-14 14:27:58 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-11-19 09:46:43 +0100 |
| commit | 4eafad7febd482092b331ea72c37274d745956be (patch) | |
| tree | 81df1dd45ee04b56180da2214fae5a3bfe66ea2a /arch/s390/kernel/compat_wrapper.c | |
| parent | s390: fix ptrace of user area if the inferior uses vector registers (diff) | |
| download | linux-dev-4eafad7febd482092b331ea72c37274d745956be.tar.xz linux-dev-4eafad7febd482092b331ea72c37274d745956be.zip | |
s390/kernel: add system calls for PCI memory access
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>
Diffstat (limited to 'arch/s390/kernel/compat_wrapper.c')
| -rw-r--r-- | arch/s390/kernel/compat_wrapper.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/s390/kernel/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c index c4f7a3d655b8..d7fa2f0f1425 100644 --- a/arch/s390/kernel/compat_wrapper.c +++ b/arch/s390/kernel/compat_wrapper.c @@ -218,3 +218,5 @@ COMPAT_SYSCALL_WRAP3(seccomp, unsigned int, op, unsigned int, flags, const char COMPAT_SYSCALL_WRAP3(getrandom, char __user *, buf, size_t, count, unsigned int, flags) COMPAT_SYSCALL_WRAP2(memfd_create, const char __user *, uname, unsigned int, flags) COMPAT_SYSCALL_WRAP3(bpf, int, cmd, union bpf_attr *, attr, unsigned int, size); +COMPAT_SYSCALL_WRAP3(s390_pci_mmio_write, const unsigned long, mmio_addr, const void __user *, user_buffer, const size_t, length); +COMPAT_SYSCALL_WRAP3(s390_pci_mmio_read, const unsigned long, mmio_addr, void __user *, user_buffer, const size_t, length); |