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Diffstat (limited to 'arch/x86/mm/numa.c')
-rw-r--r--arch/x86/mm/numa.c28
1 files changed, 13 insertions, 15 deletions
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index aa39d678fe..9d63cfff1f 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -3,6 +3,7 @@
#include <linux/acpi.h>
#include <linux/kernel.h>
#include <linux/mm.h>
+#include <linux/of.h>
#include <linux/string.h>
#include <linux/init.h>
#include <linux/memblock.h>
@@ -57,7 +58,7 @@ s16 __apicid_to_node[MAX_LOCAL_APIC] = {
int numa_cpu_node(int cpu)
{
- int apicid = early_per_cpu(x86_cpu_to_apicid, cpu);
+ u32 apicid = early_per_cpu(x86_cpu_to_apicid, cpu);
if (apicid != BAD_APICID)
return __apicid_to_node[apicid];
@@ -727,6 +728,8 @@ void __init x86_numa_init(void)
if (!numa_init(amd_numa_init))
return;
#endif
+ if (acpi_disabled && !numa_init(of_numa_init))
+ return;
}
numa_init(dummy_numa_init);
@@ -780,7 +783,7 @@ void __init init_gi_nodes(void)
void __init init_cpu_to_node(void)
{
int cpu;
- u16 *cpu_to_apicid = early_per_cpu_ptr(x86_cpu_to_apicid);
+ u32 *cpu_to_apicid = early_per_cpu_ptr(x86_cpu_to_apicid);
BUG_ON(cpu_to_apicid == NULL);
@@ -961,7 +964,7 @@ static int __init cmp_memblk(const void *a, const void *b)
const struct numa_memblk *ma = *(const struct numa_memblk **)a;
const struct numa_memblk *mb = *(const struct numa_memblk **)b;
- return ma->start - mb->start;
+ return (ma->start > mb->start) - (ma->start < mb->start);
}
static struct numa_memblk *numa_memblk_list[NR_NODE_MEMBLKS] __initdata;
@@ -971,14 +974,12 @@ static struct numa_memblk *numa_memblk_list[NR_NODE_MEMBLKS] __initdata;
* @start: address to begin fill
* @end: address to end fill
*
- * Find and extend numa_meminfo memblks to cover the @start-@end
- * physical address range, such that the first memblk includes
- * @start, the last memblk includes @end, and any gaps in between
- * are filled.
+ * Find and extend numa_meminfo memblks to cover the physical
+ * address range @start-@end
*
* RETURNS:
* 0 : Success
- * NUMA_NO_MEMBLK : No memblk exists in @start-@end range
+ * NUMA_NO_MEMBLK : No memblks exist in address range @start-@end
*/
int __init numa_fill_memblks(u64 start, u64 end)
@@ -990,17 +991,14 @@ int __init numa_fill_memblks(u64 start, u64 end)
/*
* Create a list of pointers to numa_meminfo memblks that
- * overlap start, end. Exclude (start == bi->end) since
- * end addresses in both a CFMWS range and a memblk range
- * are exclusive.
- *
- * This list of pointers is used to make in-place changes
- * that fill out the numa_meminfo memblks.
+ * overlap start, end. The list is used to make in-place
+ * changes that fill out the numa_meminfo memblks.
*/
for (int i = 0; i < mi->nr_blks; i++) {
struct numa_memblk *bi = &mi->blk[i];
- if (start < bi->end && end >= bi->start) {
+ if (memblock_addrs_overlap(start, end - start, bi->start,
+ bi->end - bi->start)) {
blk[count] = &mi->blk[i];
count++;
}