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powerpc/mm: Always update max/min_low_pfn in mem_topology_setup()

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commit 7b31f7dadd7074fa70bb14a53bd286ffdfc98b04 upstream.

For both CONFIG_NUMA enabled/disabled use mem_topology_setup() to
update max/min_low_pfn.

This also adds min_low_pfn update to CONFIG_NUMA which was initialized
to zero before. (mpe: Though MEMORY_START is == 0 for PPC64=y which is
all possible NUMA=y systems)

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220704063851.295482-1-aneesh.kumar@linux.ibm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Aneesh Kumar K.V 2022-07-04 12:08:51 +05:30 committed by Greg Kroah-Hartman
parent c1d0476885
commit 25e86fb0ae
1 changed files with 3 additions and 3 deletions
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6
arch/powerpc/mm/numa.c
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@ -1177,6 +1177,9 @@ void __init mem_topology_setup(void)
{
int cpu;
max_low_pfn = max_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT;
min_low_pfn = MEMORY_START >> PAGE_SHIFT;
/*
* Linux/mm assumes node 0 to be online at boot. However this is not
* true on PowerPC, where node 0 is similar to any other node, it
@ -1221,9 +1224,6 @@ void __init initmem_init(void)
{
int nid;
max_low_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT;
max_pfn = max_low_pfn;
memblock_dump_all();
for_each_online_node(nid) {