sgi-gru: add statistics to the GRU context management functions
Add statistics to the GRU context management functions.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
index 378a089..685db88 100644
--- a/drivers/misc/sgi-gru/grutables.h
+++ b/drivers/misc/sgi-gru/grutables.h
@@ -242,6 +242,14 @@
enum mcs_op {cchop_allocate, cchop_start, cchop_interrupt, cchop_interrupt_sync,
cchop_deallocate, tghop_invalidate, mcsop_last};
+struct mcs_op_statistic {
+ atomic_long_t count;
+ atomic_long_t total;
+ unsigned long max;
+};
+
+extern struct mcs_op_statistic mcs_op_statistics[mcsop_last];
+
#define OPT_DPRINT 1
#define OPT_STATS 2
#define GRU_QUICKLOOK 4