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From: Michael Bringmann <mwb@linux.vnet.ibm.com>
To: linuxppc-dev@lists.ozlabs.org, mwb@linux.vnet.ibm.com
Cc: Juliet Kim <minkim@us.ibm.com>,
	Thomas Falcon <tlfalcon@linux.vnet.ibm.com>,
	Tyrel Datwyler <tyreld@linux.vnet.ibm.com>,
	Nathan Fontenot <nfont@linux.vnet.ibm.com>
Subject: [PATCH v05 5/5] migration/memory: Support 'ibm,dynamic-memory-v2'
Date: Sat, 13 Oct 2018 16:35:49 -0500	[thread overview]
Message-ID: <20181013213542.4237.79008.stgit@ltcalpine2-lp9.aus.stglabs.ibm.com> (raw)
In-Reply-To: <20181013213434.4237.33531.stgit@ltcalpine2-lp9.aus.stglabs.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 6df5722..75c2118 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -1189,7 +1189,8 @@ 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:[~2018-10-13 21:46 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-13 21:34 [PATCH v05 0/5] powerpc/migration: Affinity fix for memory Michael Bringmann
2018-10-13 21:35 ` [PATCH v05 1/5] powerpc/drmem: Export 'dynamic-memory' loader Michael Bringmann
2018-10-13 21:35 ` [PATCH v05 2/5] powerpc/drmem: Add internal_flags feature Michael Bringmann
2018-10-13 21:35 ` [PATCH v05 3/5] migration/memory: Add hotplug READD_MULTIPLE Michael Bringmann
2018-10-13 21:35 ` [PATCH v05 4/5] migration/memory: Evaluate LMB assoc changes Michael Bringmann
2018-10-14  8:10   ` kbuild test robot
2018-10-13 21:35 ` Michael Bringmann [this message]

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