From: Jack Steiner <steiner@sgi.com>
To: linux-ia64@vger.kernel.org
Subject: PATCH[1/4] - Increase max node count on SN platforms
Date: Thu, 02 Mar 2006 22:02:21 +0000 [thread overview]
Message-ID: <20060302220221.GA16668@sgi.com> (raw)
Add a configuration option to allow the maximum
number of nodes to be configurable for GENERIC or SN
kernels.
Signed-off-by: Jack Steiner <steiner@sgi.com>
arch/ia64/Kconfig | 9 +++++++++
include/asm-ia64/numnodes.h | 13 +++++++++----
2 files changed, 18 insertions(+), 4 deletions(-)
Index: linux/arch/ia64/Kconfig
=================================--- linux.orig/arch/ia64/Kconfig 2006-03-02 13:18:50.720983429 -0600
+++ linux/arch/ia64/Kconfig 2006-03-02 13:21:53.330183650 -0600
@@ -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
Index: linux/include/asm-ia64/numnodes.h
=================================--- linux.orig/include/asm-ia64/numnodes.h 2006-03-02 13:18:50.721959896 -0600
+++ linux/include/asm-ia64/numnodes.h 2006-03-02 13:21:53.357524740 -0600
@@ -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 */
reply other threads:[~2006-03-02 22:02 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20060302220221.GA16668@sgi.com \
--to=steiner@sgi.com \
--cc=linux-ia64@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.