--- drivers/misc/sgi-xp/xpc_partition.c

+++ drivers/misc/sgi-xp/xpc_partition.c

@@ -433,18 +433,23 @@ xpc_discovery(void)

* nodes that can comprise an access protection grouping. The access

* protection is in regards to memory, IOI and IPI.

*/

- max_regions = 64;

region_size = xp_region_size;

- switch (region_size) {

- case 128:

- max_regions *= 2;

- case 64:

- max_regions *= 2;

- case 32:

- max_regions *= 2;

- region_size = 16;

- DBUG_ON(!is_shub2());

+ if (is_uv())

+ max_regions = 256;

+ else {

+ max_regions = 64;

+

+ switch (region_size) {

+ case 128:

+ max_regions *= 2;

+ case 64:

+ max_regions *= 2;

+ case 32:

+ max_regions *= 2;

+ region_size = 16;

+ DBUG_ON(!is_shub2());

+ }

}

for (region = 0; region < max_regions; region++) {