on older 31 bit only CPUs.
config MARCH_Z990
- bool "IBM eServer zSeries model z990"
+ bool "IBM eServer zSeries model z890 and z990"
help
- Select this enable optimizations for model z990.
+ Select this enable optimizations for model z890/z990.
This will be slightly faster but does not work on
older machines such as the z900.
This is purely to save memory - each supported CPU adds
approximately sixteen kilobytes to the kernel image.
+config HOTPLUG_CPU
+ bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
+ depends on SMP && HOTPLUG && EXPERIMENTAL
+ default n
+ help
+ Say Y here to experiment with turning CPUs off and on. CPUs
+ can be controlled through /sys/devices/system/cpu/cpu#.
+ Say N if you want to disable CPU hotplug.
+
config MATHEMU
bool "IEEE FPU emulation"
depends on MARCH_G5
tristate "QDIO support"
---help---
This driver provides the Queued Direct I/O base support for the
- IBM S/390 (G5 and G6) and eServer zSeries (z800, z900 and z990).
+ IBM S/390 (G5 and G6) and eServer zSeries (z800, z890, z900 and z990).
For details please refer to the documentation provided by IBM at
<http://www10.software.ibm.com/developerworks/opensource/linux390>
If unsure, say N.
+config QDIO_DEBUG
+ bool "Extended debugging information"
+ depends on QDIO
+ help
+ Say Y here to get extended debugging output in /proc/s390dbf/qdio...
+ Warning: this option reduces the performance of the QDIO module.
+
+ If unsure, say N.
+
comment "Misc"
config PREEMPT