[IA64-SGI] Altix SN add support for slots in geoid_t locator

This patch against ia64-test-2.6.12 is needed for forthcoming
Altix chipsets. It renames geoid_any_t to geoid_common_t and
splits the 8bit 'slab' field into two 4bit fields for 'slab'
and 'slot'. Similar changes in the Altix SAL will retain backward
compatibility for old kernels.

Signed-off-by: Mark Goodwin <markgw@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 27 insertions, 18 deletions

diff --git a/include/asm-ia64/sn/geo.h b/include/asm-ia64/sn/geo.h
index f566343d25f8..84b254603b8d 100644
--- a/include/asm-ia64/sn/geo.h
+++ b/include/asm-ia64/sn/geo.h
@@ -18,32 +18,34 @@
 #define GEOID_SIZE      8       /* Would 16 be better?  The size can
                                    be different on different platforms. */
 
-#define MAX_SLABS       0xe     /* slabs per module */
+#define MAX_SLOTS       0xf     /* slots per module */
+#define MAX_SLABS       0xf     /* slabs per slot */
 
 typedef unsigned char   geo_type_t;
 
 /* Fields common to all substructures */
-typedef struct geo_any_s {
+typedef struct geo_common_s {
     moduleid_t  module;         /* The module (box) this h/w lives in */
     geo_type_t  type;           /* What type of h/w is named by this geoid_t */
-    slabid_t    slab;           /* The logical assembly within the module */
-} geo_any_t;
+    slabid_t    slab:4;         /* slab (ASIC), 0 .. 15 within slot */
+    slotid_t    slot:4;         /* slot (Blade), 0 .. 15 within module */
+} geo_common_t;
 
 /* Additional fields for particular types of hardware */
 typedef struct geo_node_s {
-    geo_any_t   any;            /* No additional fields needed */
+    geo_common_t        common;         /* No additional fields needed */
 } geo_node_t;
 
 typedef struct geo_rtr_s {
-    geo_any_t   any;            /* No additional fields needed */
+    geo_common_t        common;         /* No additional fields needed */
 } geo_rtr_t;
 
 typedef struct geo_iocntl_s {
-    geo_any_t   any;            /* No additional fields needed */
+    geo_common_t        common;         /* No additional fields needed */
 } geo_iocntl_t;
 
 typedef struct geo_pcicard_s {
-    geo_iocntl_t        any;
+    geo_iocntl_t        common;
     char                bus;    /* Bus/widget number */
     char                slot;   /* PCI slot number */
 } geo_pcicard_t;
@@ -62,14 +64,14 @@ typedef struct geo_mem_s {
 
 
 typedef union geoid_u {
-    geo_any_t   any;
-    geo_node_t  node;
+    geo_common_t        common;
+    geo_node_t          node;
     geo_iocntl_t        iocntl;
     geo_pcicard_t       pcicard;
-    geo_rtr_t   rtr;
-    geo_cpu_t   cpu;
-    geo_mem_t   mem;
-    char        padsize[GEOID_SIZE];
+    geo_rtr_t           rtr;
+    geo_cpu_t           cpu;
+    geo_mem_t           mem;
+    char                padsize[GEOID_SIZE];
 } geoid_t;
 
 
@@ -104,19 +106,26 @@ typedef union geoid_u {
 #define INVALID_CNODEID         ((cnodeid_t)-1)
 #define INVALID_PNODEID         ((pnodeid_t)-1)
 #define INVALID_SLAB            (slabid_t)-1
+#define INVALID_SLOT            (slotid_t)-1
 #define INVALID_MODULE          ((moduleid_t)-1)
 #define INVALID_PARTID          ((partid_t)-1)
 
 static inline slabid_t geo_slab(geoid_t g)
 {
-        return (g.any.type == GEO_TYPE_INVALID) ?
-                INVALID_SLAB : g.any.slab;
+        return (g.common.type == GEO_TYPE_INVALID) ?
+                INVALID_SLAB : g.common.slab;
+}
+
+static inline slotid_t geo_slot(geoid_t g)
+{
+        return (g.common.type == GEO_TYPE_INVALID) ?
+                INVALID_SLOT : g.common.slot;
 }
 
 static inline moduleid_t geo_module(geoid_t g)
 {
-        return (g.any.type == GEO_TYPE_INVALID) ?
-                INVALID_MODULE : g.any.module;
+        return (g.common.type == GEO_TYPE_INVALID) ?
+                INVALID_MODULE : g.common.module;
 }
 
 extern geoid_t cnodeid_get_geoid(cnodeid_t cnode);