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authorJack Steiner <steiner@sgi.com>2005-08-11 10:28:00 -0700
committerTony Luck <tony.luck@intel.com>2005-08-17 15:32:24 -0700
commit470ceb05d9a2b4d61c19fac615a79e56e8401565 (patch)
treeeb9e2b0b971bbe287dd4bef0b46c7307e3258bf0 /arch/ia64/sn/kernel/setup.c
parent68b9753f47953930cb94de0223c163f289399091 (diff)
[IA64-SGI] - New SN hardware support - ptc_fixes
Shub2 provides a much improved mechanism for issuing internode TLB purges. Add code to support the newer mechanism. There is also some debug code (disabled) that is useful for testing. Collect statistics on the number, type & duration of TLB purges. This data will be useful for making future improvements in the algorithms. Signed-off-by: Jack Steiner <steiner@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/sn/kernel/setup.c')
-rw-r--r--arch/ia64/sn/kernel/setup.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/ia64/sn/kernel/setup.c b/arch/ia64/sn/kernel/setup.c
index ed77715393ef..6648deb778a6 100644
--- a/arch/ia64/sn/kernel/setup.c
+++ b/arch/ia64/sn/kernel/setup.c
@@ -403,6 +403,7 @@ static void __init sn_init_pdas(char **cmdline_p)
memset(nodepdaindr[cnode], 0, sizeof(nodepda_t));
memset(nodepdaindr[cnode]->phys_cpuid, -1,
sizeof(nodepdaindr[cnode]->phys_cpuid));
+ spin_lock_init(&nodepdaindr[cnode]->ptc_lock);
}
/*