linux-toradex.git/arch/s390/kernel/entry.h, branch v3.19

s390/kernel: add system calls for PCI memory access

2014-11-19T08:46:43+00:00

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

s390: add support for vector extension

2014-10-09T07:14:13+00:00

The vector extension introduces 32 128-bit vector registers and a set of
instruction to operate on the vector registers.

The kernel can control the use of vector registers for the problem state
program with a bit in control register 0. Once enabled for a process the
kernel needs to retain the content of the vector registers on context
switch. The signal frame is extended to include the vector registers.
Two new register sets NT_S390_VXRS_LOW and NT_S390_VXRS_HIGH are added
to the regset interface for the debugger and core dumps.

Signed-off-by: Martin Schwidefsky

s390/idle: consolidate idle functions and definitions

2014-10-09T07:14:03+00:00

Move the C functions and definitions related to the idle state handling
to arch/s390/include/asm/idle.h and arch/s390/kernel/idle.c. The function
s390_get_idle_time is renamed to arch_cpu_idle_time and vtime_stop_cpu to
enabled_wait.

Signed-off-by: Martin Schwidefsky

s390/uprobes: architecture backend for uprobes

2014-09-25T08:52:17+00:00

Signed-off-by: Jan Willeke 
Signed-off-by: Heiko Carstens 
Signed-off-by: Martin Schwidefsky

s390: Use get_signal() signal_setup_done()

2014-08-06T11:03:10+00:00

Use the more generic functions get_signal() signal_setup_done()
for signal delivery.

Signed-off-by: Richard Weinberger

s390/compat: get rid of compat wrapper assembly code

2014-03-06T15:30:48+00:00

Now that all compat syscalls have been converted to use the
COMPAT_SYSCALL_DEFINE macros, we don't need to compat syscall
wrapper assembly code anymore.
So remove it and fix up the system call table accordingly.

Signed-off-by: Heiko Carstens

s390/compat: convert system call wrappers to C part 15

2014-03-04T08:05:46+00:00

Signed-off-by: Heiko Carstens

s390/compat: convert system call wrappers to C part 05

2014-03-04T08:05:40+00:00

Signed-off-by: Heiko Carstens

s390/mm,tlb: correct tlb flush on page table upgrade

2013-11-04T12:51:47+00:00

The IDTE instruction used to flush TLB entries for a specific address
space uses the address-space-control element (ASCE) to identify
affected TLB entries. The upgrade of a page table adds a new top
level page table which changes the ASCE. The TLB entries associated
with the old ASCE need to be flushed and the ASCE for the address space
needs to be replaced synchronously on all CPUs which currently use it.
The concept of a lazy ASCE update with an exception handler is broken.

Signed-off-by: Martin Schwidefsky

s390: make various functions static, add declarations to header files

2013-09-07T09:58:03+00:00

Make various functions static, add declarations to header files to
fix a couple of sparse findings.

Signed-off-by: Heiko Carstens