Commit 7b31f7da authored by Aneesh Kumar K.V's avatar Aneesh Kumar K.V Committed by Michael Ellerman
Browse files

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



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: default avatarAneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220704063851.295482-1-aneesh.kumar@linux.ibm.com
parent d368e0c4

arch/powerpc/mm/numa.c

+3 −3
Original line number Diff line number Diff line
@@ -1160,6 +1160,9 @@ 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
@@ -1204,9 +1207,6 @@ 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) {