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gru: collect per-context user statistics

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Collect GRU statistics for each user GRU context.  Statistics are kept for
TLB misses & content resource contention.  Add user request for retrieving
the statistics.

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
2009-06-17 16:28:30 -07:00
committed by Linus Torvalds
parent d6e2fbce0d
commit 7e796a72a2
5 changed files with 52 additions and 0 deletions
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3
drivers/misc/sgi-gru/grutables.h
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@@ -148,6 +148,7 @@
#include <linux/wait.h>
#include <linux/mmu_notifier.h>
#include "gru.h"
#include "grulib.h"
#include "gruhandles.h"
extern struct gru_stats_s gru_stats;
@@ -388,6 +389,7 @@ struct gru_thread_state {
allocated CB */
int ts_data_valid; /* Indicates if ts_gdata has
valid data */
struct gts_statistics ustats; /* User statistics */
unsigned long ts_gdata[0]; /* save area for GRU data (CB,
DS, CBE) */
};
@@ -641,6 +643,7 @@ extern void gru_tgh_flush_init(struct gru_state *gru);
extern int gru_kservices_init(void);
extern void gru_kservices_exit(void);
extern int gru_dump_chiplet_request(unsigned long arg);
extern long gru_get_gseg_statistics(unsigned long arg);
extern irqreturn_t gru_intr(int irq, void *dev_id);
extern int gru_handle_user_call_os(unsigned long address);
extern int gru_user_flush_tlb(unsigned long arg);