From b354a8388891adc5dc5e5fb0130f000152f3fb94 Mon Sep 17 00:00:00 2001 From: Jack Steiner Date: Thu, 2 Mar 2006 16:02:21 -0600 Subject: [PATCH] [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: Jack Steiner Signed-off-by: Tony Luck --- arch/ia64/Kconfig | 9 +++++++++ include/asm-ia64/numnodes.h | 13 +++++++++---- 2 files changed, 18 insertions(+), 4 deletions(-) diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index ff7ae6b664e8..10b6b9e7716b 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -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 diff --git a/include/asm-ia64/numnodes.h b/include/asm-ia64/numnodes.h index 21cff4da5485..e9d356f549d9 100644 --- a/include/asm-ia64/numnodes.h +++ b/include/asm-ia64/numnodes.h @@ -3,13 +3,18 @@ #ifdef CONFIG_IA64_DIG /* Max 8 Nodes */ -#define NODES_SHIFT 3 +# define NODES_SHIFT 3 #elif defined(CONFIG_IA64_HP_ZX1) || defined(CONFIG_IA64_HP_ZX1_SWIOTLB) /* Max 32 Nodes */ -#define NODES_SHIFT 5 +# define NODES_SHIFT 5 #elif defined(CONFIG_IA64_SGI_SN2) || defined(CONFIG_IA64_GENERIC) -/* Max 256 Nodes */ -#define NODES_SHIFT 8 +# 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 */