From: Christoph Lameter <clameter@engr.sgi.com>
Date: Thu, 23 Jun 2005 07:08:27 +0000 (-0700)
Subject: [PATCH] ia64: Selectable Timer Interrupt Frequency
X-Git-Tag: v2.6.13-rc4~130^2~111
X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=b5d23e5b8c7ecd97d32f6ad7680d9909977580a7;p=linux-2.6-omap-h63xx.git

[PATCH] ia64: Selectable Timer Interrupt Frequency

It allows a selectable timer interrupt frequency of 100, 250 and 1000 HZ.
Reducing the timer frequency may have important performance benefits on
large systems.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 9f6a46caba9..01b78e7f992 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -161,6 +161,8 @@ config IA64_PAGE_SIZE_64KB
 
 endchoice
 
+source kernel/Kconfig.hz
+
 config IA64_BRL_EMU
 	bool
 	depends on ITANIUM
diff --git a/include/asm-ia64/param.h b/include/asm-ia64/param.h
index 6c6b679b7a9..5e1e0d2d7ba 100644
--- a/include/asm-ia64/param.h
+++ b/include/asm-ia64/param.h
@@ -27,7 +27,7 @@
    */
 #  define HZ	  32
 # else
-#  define HZ	1024
+#  define HZ	CONFIG_HZ
 # endif
 # define USER_HZ	HZ
 # define CLOCKS_PER_SEC	HZ	/* frequency at which times() counts */