linux/arch/s390
Jan Glauber 87bc359b98 s390/pci: speed up __iowrite64_copy by using pci store block insn
Benefit from pci store block instruction by writing up to 128 bytes
with a single instruction to MMIO space. Depending on the workload
this can result in a huge performance increase due to the reduced
number of instructions. The ordering guarantees of single stores
vs. one store block are identical.

Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2012-12-11 14:52:42 +01:00
..
appldata s390/vtimer: rework virtual timer interface 2012-07-20 11:15:08 +02:00
boot s390: fix linker script for 31 bit builds 2012-10-18 17:50:10 +02:00
crypto s390/crypto: Don't panic after crypto instruction failures 2012-11-23 11:14:27 +01:00
hypfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-10-02 20:25:04 -07:00
include s390/pci: no msleep in potential IRQ context 2012-12-05 09:12:51 -05:00
kernel s390/pci: PCI adapter interrupts for MSI/MSI-X 2012-11-30 17:47:21 +01:00
kvm KVM updates for the 3.7 merge window 2012-10-04 09:30:33 -07:00
lib s390/mm: use pmd_large() instead of pmd_huge() 2012-10-26 16:44:23 +02:00
math-emu s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
mm s390/ptrace: race of single stepping vs signal delivery 2012-11-23 11:14:33 +01:00
net s390/bpf,jit: add support for XOR instruction 2012-12-03 10:44:05 -05:00
oprofile oprofile, s390: Fix uninitialized memory access when writing to oprofilefs 2012-08-27 14:49:23 +02:00
pci s390/pci: speed up __iowrite64_copy by using pci store block insn 2012-12-11 14:52:42 +01:00
defconfig s390: update defconfig 2012-09-26 15:45:29 +02:00
Kbuild s390/pci: base support 2012-11-30 15:40:45 +01:00
Kconfig s390/pci: enable NEED_DMA_MAP_STATE 2012-12-05 11:05:05 -05:00
Kconfig.debug s390/mm: add page table dumper 2012-10-09 14:16:58 +02:00
Makefile s390: add zEC12 code generation support 2012-11-23 11:14:31 +01:00