Commit b354a838 authored by Jack Steiner's avatar Jack Steiner Committed by Tony Luck
Browse files

[IA64] Increase max node count on SN platforms 



Add a configuration option to allow the maximum
number of nodes to be configurable for GENERIC or SN
kernels.

Signed-off-by: default avatarJack Steiner <steiner@sgi.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent f90aa8c4

arch/ia64/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -252,6 +252,15 @@ config NR_CPUS 
	  than 64 will cause the use of a CPU mask array, causing a small

	  performance hit.



config IA64_NR_NODES

	int "Maximum number of NODEs (256-1024)" if (IA64_SGI_SN2 || IA64_GENERIC)

	range 256 1024

	depends on IA64_SGI_SN2 || IA64_GENERIC

	default "256"

	help

	  This option specifies the maximum number of nodes in your SSI system.

	  If in doubt, use the default.



config HOTPLUG_CPU

	bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"

	depends on SMP && EXPERIMENTAL

include/asm-ia64/numnodes.h

+9 −4
Original line number Diff line number Diff line
@@ -8,8 +8,13 @@ 
/* Max 32 Nodes */

#  define NODES_SHIFT	5

#elif defined(CONFIG_IA64_SGI_SN2) || defined(CONFIG_IA64_GENERIC)

/* Max 256 Nodes */

#  if CONFIG_IA64_NR_NODES == 256

#    define NODES_SHIFT	8

#  elif CONFIG_IA64_NR_NODES <= 512

#    define NODES_SHIFT    9

#  elif CONFIG_IA64_NR_NODES <= 1024

#    define NODES_SHIFT    10

#  endif

#endif



#endif /* _ASM_MAX_NUMNODES_H */