x86/platform/uv: Recognize UV5 hubless system identifier

Testing shows a problem in that UV5 hubless systems were not being
recognized.  Add them to the list of OEM IDs checked.

Fixes: 6c7794423a998 ("Add UV5 direct references")
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20201105222741.157029-4-mike.travis@hpe.com

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 0f848d6..3115caa 100644 (file)
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -389,13 +389,20 @@ static int __init uv_set_system_type(char *_oem_id, char *_oem_table_id)
                        /* (Not hubless), not a UV */
                        return 0;
 
+               /* Is UV hubless system */
+               uv_hubless_system = 0x01;
+
+               /* UV5 Hubless */
+               if (strncmp(uv_archtype, "NSGI5", 5) == 0)
+                       uv_hubless_system |= 0x20;
+
                /* UV4 Hubless: CH */
-               if (strncmp(uv_archtype, "NSGI4", 5) == 0)
-                       uv_hubless_system = 0x11;
+               else if (strncmp(uv_archtype, "NSGI4", 5) == 0)
+                       uv_hubless_system |= 0x10;
 
                /* UV3 Hubless: UV300/MC990X w/o hub */
                else
-                       uv_hubless_system = 0x9;
+                       uv_hubless_system |= 0x8;
 
                /* Copy APIC type */
                uv_stringify(sizeof(oem_table_id), oem_table_id, _oem_table_id);