[PATCH 2/4] powerpc/mm: create numa nodes for hotplug memory
From: Reza Arbab <hidden>
Date: 2016-08-08 18:28:18
Also in:
linux-devicetree, linuxppc-dev, lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
When scanning the device tree to initialize the system NUMA topology, process dt elements with compatible id "ibm,hotplug-aperture" to create memoryless numa nodes. These nodes will be filled when hotplug occurs within the associated address range. Signed-off-by: Reza Arbab <redacted> --- arch/powerpc/mm/numa.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 75b9cd6..80d067d 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c@@ -708,6 +708,12 @@ static void __init parse_drconf_memory(struct device_node *memory) } } +static const struct of_device_id memory_match[] = { + { .type = "memory" }, + { .compatible = "ibm,hotplug-aperture" }, + { /* sentinel */ } +}; + static int __init parse_numa_properties(void) { struct device_node *memory;
@@ -752,7 +758,7 @@ static int __init parse_numa_properties(void) get_n_mem_cells(&n_mem_addr_cells, &n_mem_size_cells); - for_each_node_by_type(memory, "memory") { + for_each_matching_node(memory, memory_match) { unsigned long start; unsigned long size; int nid;
@@ -1080,7 +1086,7 @@ static int hot_add_node_scn_to_nid(unsigned long scn_addr) struct device_node *memory; int nid = -1; - for_each_node_by_type(memory, "memory") { + for_each_matching_node(memory, memory_match) { unsigned long start, size; int ranges; const __be32 *memcell_buf;
--
1.8.3.1
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