How to configure the Linux kernel/arch/parisc

For a description of the syntax of this configuration file,

see Documentation/kbuild/kconfig-language.txt.

"Linux/PA-RISC Kernel Configuration"

_bool y

- The PA-RISC microprocessor is designed by Hewlett-Packard and used in many of their workstations & servers (HP9000 700 and 800 series, and later HP3000 series). The PA-RISC Linux project home page is at <http://www.parisc-linux.org/>.

_bool y

_bool y

_bool y

Option: GENERIC_CALIBRATE_DELAY
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default y

_bool y

_bool y

unless you want to implement ACPI on PA-RISC ... ;-)

Option: ARCH_MAY_HAVE_PC_FDC
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- depends on BROKEN
- default y

Processor type and features[]

"Processor type"

Option: PA7000
- Kernel Versions: 2.6.15.6 ...
- (on/off) PA7000/PA7100
  This is the processor type of your CPU. This information is used for optimizing purposes. In order to compile a kernel that can run on all 32-bit PA CPUs (albeit not optimally fast), you can specify "PA7000" here.
  
  Specifying "PA8000" here will allow you to select a 64-bit kernel which is required on some machines.

Option: PA7100LC
- Kernel Versions: 2.6.15.6 ...
- (on/off) PA7100LC
  Select this option for the PCX-L processor, as used in the 712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748, D200, D210, D300, D310 and E-class

Option: PA7200
- Kernel Versions: 2.6.15.6 ...
- (on/off) PA7200
  Select this option for the PCX-T' processor, as used in the C100, C110, J100, J110, J210XC, D250, D260, D350, D360, K100, K200, K210, K220, K400, K410 and K420

Option: PA7300LC
- Kernel Versions: 2.6.15.6 ...
- (on/off) PA7300LC
  Select this option for the PCX-L2 processor, as used in the 744, A180, B132L, B160L, B180L, C132L, C160L, C180L, D220, D230, D320 and D330.

Option: PA8X00
- Kernel Versions: 2.6.15.6 ...
- (on/off) PA8000 and up
  Select this option for PCX-U to PCX-W2 processors.

Define implied options from the CPU selection here

_bool y

_bool y

_bool y

Option: 64BIT
- Kernel Versions: 2.6.15.6 ...
- (on/off) 64-bit kernel
- depends on PA8X00
  Enable this if you want to support 64bit kernel on PA-RISC platform.
  
  At the moment, only people willing to use more than 2GB of RAM, or having a 64bit-only capable PA-RISC machine should say Y here.
  
  Since there is no 64bit userland on PA-RISC, there is no point to enable this option otherwise. The 64bit kernel is significantly bigger and slower than the 32bit one.

Option: SMP
- Kernel Versions: 2.6.15.6 ...
- (on/off) Symmetric multi-processing support
  This enables support for systems with more than one CPU. If you have a system with only one CPU, like most personal computers, say N. If you have a system with more than one CPU, say Y.
  
  If you say N here, the kernel will run on single and multiprocessor machines, but will use only one CPU of a multiprocessor machine. If you say Y here, the kernel will run on many, but not all, singleprocessor machines. On a singleprocessor machine, the kernel will run faster if you say N here.
  
  See also the <file:Documentation/smp.txt>, <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at <http://www.tldp.org/docs.html#howto>.
  
  If you don't know what to do here, say N.

Option: HOTPLUG_CPU
- Kernel Versions: 2.6.15.6 ...
- (on/off)
- default y if SMP
- select HOTPLUG

Option: ARCH_DISCONTIGMEM_ENABLE
- Kernel Versions: 2.6.15.6 ...
- (on/off) Discontiguous memory support (EXPERIMENTAL)
- depends on 64BIT && EXPERIMENTAL
  Say Y to support efficient handling of discontiguous physical memory, for architectures which are either NUMA (Non-Uniform Memory Access) or have huge holes in the physical address space for other reasons. See <file:Documentation/vm/numa> for more.