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gru: improve GRU TLB dropin statistics

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Update the TLB dropin statistics kept for each GRU context.  Count TLB
dropins separate from the misses - some misses do not result in a TLB
dropin.  Some of the diagnostics need both counts.

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>
This commit is contained in:
Jack Steiner
2009-12-15 16:48:18 -08:00
committed by Linus Torvalds
parent 2ce4d4c937
commit 5958ab88f7
4 changed files with 17 additions and 14 deletions
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11
drivers/misc/sgi-gru/gru.h
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@@ -53,6 +53,17 @@ struct gru_chiplet_info {
int free_user_cbr;
};
/*
* Statictics kept for each context.
*/
struct gru_gseg_statistics {
unsigned long fmm_tlbmiss;
unsigned long upm_tlbmiss;
unsigned long tlbdropin;
unsigned long context_stolen;
unsigned long reserved[10];
};
/* Flags for GRU options on the gru_create_context() call */
/* Select one of the follow 4 options to specify how TLB misses are handled */
#define GRU_OPT_MISS_DEFAULT 0x0000 /* Use default mode */