x86, NUMA: Make 32bit use common NUMA init path
With both _numa_init() methods converted and the rest of init code
adjusted, numa_32.c now can switch from the 32bit only init code to
the common one in numa.c.
* Shim get_memcfg_*()'s are dropped and initmem_init() calls
x86_numa_init(), which is updated to handle NUMAQ.
* All boilerplate operations including node range limiting, pgdat
alloc/init are handled by numa_init(). 32bit only implementation is
removed.
* 32bit numa_add_memblk(), numa_set_distance() and
memory_add_physaddr_to_nid() removed and common versions in
numa_32.c enabled for 32bit.
This change causes the following behavior changes.
* NODE_DATA()->node_start_pfn/node_spanned_pages properly initialized
for 32bit too.
* Much more sanity checks and configuration cleanups.
* Proper handling of node distances.
* The same NUMA init messages as 64bit.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index a72317a..56ed714 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -173,7 +173,6 @@
(mi->nr_blks - idx) * sizeof(mi->blk[0]));
}
-#ifdef CONFIG_X86_64
/**
* numa_add_memblk - Add one numa_memblk to numa_meminfo
* @nid: NUMA node ID of the new memblk
@@ -189,7 +188,6 @@
{
return numa_add_memblk_to(nid, start, end, &numa_meminfo);
}
-#endif
/* Initialize bootmem allocator for a node */
static void __init setup_node_bootmem(int nid, u64 start, u64 end)
@@ -413,7 +411,6 @@
return 0;
}
-#ifdef CONFIG_X86_64
/**
* numa_set_distance - Set NUMA distance from one NUMA to another
* @from: the 'from' node to set distance
@@ -452,7 +449,6 @@
numa_distance[from * numa_distance_cnt + to] = distance;
}
-#endif
int __node_distance(int from, int to)
{
@@ -626,6 +622,10 @@
void __init x86_numa_init(void)
{
if (!numa_off) {
+#ifdef CONFIG_X86_NUMAQ
+ if (!numa_init(numaq_numa_init))
+ return;
+#endif
#ifdef CONFIG_ACPI_NUMA
if (!numa_init(x86_acpi_numa_init))
return;
@@ -805,7 +805,7 @@
#endif /* !CONFIG_DEBUG_PER_CPU_MAPS */
-#if defined(CONFIG_X86_64) && defined(CONFIG_MEMORY_HOTPLUG)
+#ifdef CONFIG_MEMORY_HOTPLUG
int memory_add_physaddr_to_nid(u64 start)
{
struct numa_meminfo *mi = &numa_meminfo;