From: Anton Blanchard <anton@samba.org>
To: Nishanth Aravamudan <nacc@us.ibm.com>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
jlarrew@linux.vnet.ibm.com
Cc: linuxppc-dev@ozlabs.org
Subject: [PATCH 4/5] powerpc/numa: Disable VPHN on dedicated processor partitions
Date: Sun, 30 Jan 2011 09:35:22 +1100 [thread overview]
Message-ID: <20110130093522.1fee5a4e@kryten> (raw)
In-Reply-To: <20110130092434.42a887ef@kryten>
There is no need to start up the timer and monitor topology changes on a
dedicated processor partition, so disable it.
Signed-off-by: Anton Blanchard <anton@samba.org>
---
Index: linux-2.6/arch/powerpc/mm/numa.c
===================================================================
--- linux-2.6.orig/arch/powerpc/mm/numa.c 2011-01-29 12:58:01.849279835 +1100
+++ linux-2.6/arch/powerpc/mm/numa.c 2011-01-29 12:58:02.489239819 +1100
@@ -1520,7 +1520,8 @@ int start_topology_update(void)
{
int rc = 0;
- if (firmware_has_feature(FW_FEATURE_VPHN)) {
+ if (firmware_has_feature(FW_FEATURE_VPHN) &&
+ get_lppaca()->shared_proc) {
vphn_enabled = 1;
setup_cpu_associativity_change_counters();
init_timer_deferrable(&topology_timer);
next prev parent reply other threads:[~2011-01-29 22:35 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-18 1:31 2.6.37-git17 virtual IO boot failure Anton Blanchard
2011-01-18 22:47 ` Nishanth Aravamudan
2011-01-19 0:48 ` Nishanth Aravamudan
2011-01-19 6:06 ` Benjamin Herrenschmidt
2011-01-19 22:26 ` Nishanth Aravamudan
2011-01-19 4:06 ` Benjamin Herrenschmidt
2011-01-19 4:37 ` Nishanth Aravamudan
2011-01-19 4:54 ` Benjamin Herrenschmidt
2011-01-29 22:22 ` Anton Blanchard
2011-01-29 22:24 ` [PATCH 1/5] powerpc/numa: Only use active VPHN count fields Anton Blanchard
2011-01-29 22:26 ` [PATCH 2/5] powerpc/numa: Check for all VPHN changes Anton Blanchard
2011-01-29 22:28 ` [PATCH 3/5] powerpc/numa: Add length when creating OF properties via VPHN Anton Blanchard
2011-01-29 22:35 ` Anton Blanchard [this message]
2011-01-29 22:37 ` [PATCH 5/5] powerpc/numa: Fix bug in unmap_cpu_from_node Anton Blanchard
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