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From: Michael Bringmann <mwb@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Michael Bringmann <mwb@linux.vnet.ibm.com>,
	Nathan Fontenot <nfont@linux.vnet.ibm.com>,
	John Allen <jallen@linux.vnet.ibm.com>,
	Tyrel Datwyler <tyreld@linux.vnet.ibm.com>,
	Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Subject: [PATCH v02 5/5] migration/memory: Support 'ibm,dynamic-memory-v2'
Date: Fri, 29 Jun 2018 17:13:20 -0500	[thread overview]
Message-ID: <23ba23ce-4d18-ff7d-bfef-e1b133ce95ef@linux.vnet.ibm.com> (raw)
In-Reply-To: <adc67a97-b800-b533-7993-516fc254b6a2@linux.vnet.ibm.com>

migration/memory: This patch adds recognition for changes to the
associativity of memory blocks described by 'ibm,dynamic-memory-v2'.
If the associativity of an LMB has changed, it should be readded to
the system in order to update local and general kernel data structures.
This patch builds upon previous enhancements that scan the device-tree
"ibm,dynamic-memory" properties using the base LMB array, and a copy
derived from the updated properties.

Signed-off-by: Michael Bringmann <mwb@linux.vnet.ibm.com>
---
 arch/powerpc/platforms/pseries/hotplug-memory.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 7dcc3e9..5c7d9c0 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -1199,7 +1199,8 @@ static int pseries_memory_notifier(struct notifier_block *nb,
 		err = pseries_remove_mem_node(rd->dn);
 		break;
 	case OF_RECONFIG_UPDATE_PROPERTY:
-		if (!strcmp(rd->prop->name, "ibm,dynamic-memory")) {
+		if (!strcmp(rd->prop->name, "ibm,dynamic-memory") ||
+		    !strcmp(rd->prop->name, "ibm,dynamic-memory-v2")) {
 			struct drmem_lmb_info *dinfo =
 				drmem_lmbs_init(rd->prop);
 			if (!dinfo)

      parent reply	other threads:[~2018-06-29 22:13 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-29 22:12 [PATCH v02 0/5] powerpc/migration: Affinity fix for memory Michael Bringmann
2018-06-29 22:13 ` [PATCH v02 1/5] powerpc/drmem: Export 'dynamic-memory' loader Michael Bringmann
2018-06-29 22:13 ` [PATCH v02 2/5] powerpc/drmem: Add internal_flags feature Michael Bringmann
2018-06-29 22:13 ` [PATCH v02 3/5] migration/memory: Add hotplug READD_MULTIPLE Michael Bringmann
2018-06-29 22:13 ` [PATCH v02 4/5] migration/memory: Evaluate LMB assoc changes Michael Bringmann
2018-06-29 22:13 ` Michael Bringmann [this message]

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