[POWERPC] spufs: Add spu stats in sysfs

Export spu statistics in sysfs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 17 insertions, 0 deletions

diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h
index 5957fcdda04c..eedc828cef2d 100644
--- a/include/asm-powerpc/spu.h
+++ b/include/asm-powerpc/spu.h
@@ -106,6 +106,14 @@ struct spu_context;
 struct spu_runqueue;
 struct device_node;
 
+enum spu_utilization_state {
+        SPU_UTIL_SYSTEM,
+        SPU_UTIL_USER,
+        SPU_UTIL_IOWAIT,
+        SPU_UTIL_IDLE,
+        SPU_UTIL_MAX
+};
+
 struct spu {
         const char *name;
         unsigned long local_store_phys;
@@ -159,8 +167,17 @@ struct spu {
 
         struct {
                 /* protected by interrupt reentrancy */
+                enum spu_utilization_state utilization_state;
+                unsigned long tstamp;           /* time of last ctx switch */
+                unsigned long times[SPU_UTIL_MAX];
+                unsigned long long vol_ctx_switch;
+                unsigned long long invol_ctx_switch;
+                unsigned long long min_flt;
+                unsigned long long maj_flt;
+                unsigned long long hash_flt;
                 unsigned long long slb_flt;
                 unsigned long long class2_intr;
+                unsigned long long libassist;
         } stats;
 };