linux.git/arch/s390/kernel/entry.h, branch v3.15

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

s390/irq: store interrupt information in pt_regs

2013-06-26T19:10:23+00:00

Copy the interrupt parameters from the lowcore to the pt_regs structure
in entry[64].S and reduce the arguments of the low level interrupt handler
to the pt_regs pointer only. In addition move the test-pending-interrupt
loop from do_IRQ to entry[64].S to make sure that interrupt information
is always delivered via pt_regs.

Signed-off-by: Martin Schwidefsky

s390/hibernate: Save and restore absolute zero pages

2013-04-17T12:07:30+00:00

Since commit 5f954c34 ([S390] hibernation: fix lowcore handling)
the absolute zero lowcore is lost during suspend/resume.
For example, this leads to the problem that the re-IPL device
for kdump is no longer set after resume.

With this patch during suspend a buffer is allocated in the new PM
notifier "suspend_pm_cb" and then the absolute zero lowcore is saved
to that buffer. The resume code then copies back this buffer to
absolute zero and afterwards the PM notifier releases the memory.

Signed-off-by: Michael Holzheu 
Signed-off-by: Martin Schwidefsky

s390: switch to generic old sigaction()

2013-02-03T23:16:14+00:00

Signed-off-by: Al Viro

s390: switch to generic old sigsuspend

2013-02-03T23:16:13+00:00

Signed-off-by: Al Viro

s390: switch to generic sigaltstack

2013-02-03T23:16:11+00:00

Signed-off-by: Al Viro