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Red Hat Bugzilla – Attachment 150089 Details for
Bug 232336
Enable use of PAL_HALT_LIGHT for idle loop as non-default option
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[patch]
kernel patch to make palhalt boot option, also requires config change
linux-2.4.21-ia64-enable_pal_halt.patch (text/plain), 657 bytes, created by
Alex Williamson
on 2007-03-14 20:08:41 UTC
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Description:
kernel patch to make palhalt boot option, also requires config change
Filename:
MIME Type:
Creator:
Alex Williamson
Created:
2007-03-14 20:08:41 UTC
Size:
657 bytes
patch
obsolete
>--- linux-2.4.21/arch/ia64/kernel/process.c.orig 2007-03-14 13:06:27.000000000 -0600 >+++ linux-2.4.21/arch/ia64/kernel/process.c 2007-03-14 13:08:36.000000000 -0600 >@@ -34,6 +34,19 @@ > #include <asm/sn/idle.h> > #endif > >+#ifdef CONFIG_IA64_PAL_IDLE >+static int use_pal_halt; >+ >+static int __init >+pal_halt (char *str) >+{ >+ use_pal_halt = 1; >+ return 1; >+} >+ >+__setup("palhalt", pal_halt); >+#endif >+ > void > ia64_do_show_stack (struct unw_frame_info *info, void *arg) > { >@@ -136,7 +149,7 @@ > default_idle (void) > { > #ifdef CONFIG_IA64_PAL_IDLE >- if (!current->need_resched) >+ if (use_pal_halt && !current->need_resched) > safe_halt(); > else > cpu_relax();
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