From 4eafad7febd482092b331ea72c37274d745956be Mon Sep 17 00:00:00 2001 From: Alexey Ishchuk Date: Fri, 14 Nov 2014 14:27:58 +0100 Subject: 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 Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/compat_wrapper.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/s390/kernel/compat_wrapper.c') diff --git a/arch/s390/kernel/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c index c4f7a3d..d7fa2f0 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); -- cgit v1.1