linux_dsm_epyc7002/arch/s390
Heiko Carstens 4f41c2b456 s390/uaccess: get rid of indirect function calls
There are only two uaccess variants on s390 left: the version that is used
if the mvcos instruction is available, and the page table walk variant.
So there is no need for expensive indirect function calls.

By default the mvcos variant will be called. If the mvcos instruction is not
available it will call the page table walk variant.

For minimal performance impact the "if (mvcos_is_available)" is implemented
with a jump label, which will be a six byte nop on machines with mvcos.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2014-02-21 08:50:14 +01:00
..
appldata s390/appldata: restore missing init_virt_timer() 2014-01-29 09:07:51 +01:00
boot
configs
crypto crypto: s390 - fix des and des3_ede ctr concurrency issue 2014-01-30 21:45:14 +08:00
hypfs s390/hypfs: add interface for diagnose 0x304 2014-01-24 09:40:59 +01:00
include s390/uaccess: get rid of indirect function calls 2014-02-21 08:50:14 +01:00
kernel s390/uaccess: get rid of indirect function calls 2014-02-21 08:50:14 +01:00
kvm This deals with 2 guest features that need enablement in the kvm host: 2014-01-23 11:38:13 +01:00
lib s390/uaccess: get rid of indirect function calls 2014-02-21 08:50:14 +01:00
math-emu
mm s390/dump: Fix dump memory detection 2014-02-04 15:39:51 +01:00
net s390/bpf,jit: fix 32 bit divisions, use unsigned divide instructions 2014-01-17 18:54:49 -08:00
oprofile
pci PCI changes for the v3.14 merge window: 2014-01-22 16:39:28 -08:00
defconfig
Kbuild
Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2014-01-28 09:02:24 -08:00
Kconfig.debug
Makefile