linux/arch/s390/pci
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
..
Makefile s390/pci: s390 specific PCI sysfs attributes 2012-11-30 17:47:26 +01:00
pci_clp.c s390/pci: DMA support 2012-11-30 17:47:23 +01:00
pci_dma.c s390/pci: fix potential NULL pointer dereference in dma_free_seg_table() 2012-12-03 10:44:11 -05:00
pci_event.c s390/pci: CHSC PCI support for error and availability events 2012-11-30 17:47:24 +01:00
pci_msi.c s390/pci: PCI adapter interrupts for MSI/MSI-X 2012-11-30 17:47:21 +01:00
pci_sysfs.c s390/pci: s390 specific PCI sysfs attributes 2012-11-30 17:47:26 +01:00
pci.c s390/pci: speed up __iowrite64_copy by using pci store block insn 2012-12-11 14:52:42 +01:00