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| author | Jack Steiner <steiner@sgi.com> | 2009-06-17 16:28:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-18 13:04:03 -0700 |
| commit | 7e796a72a2691d7094fd62da61097294d0d59ce4 (patch) | |
| tree | 9e8d4e1eae9a2d23f604f0af5d101979dc7afec7 /drivers/misc/sgi-gru/grulib.h | |
| parent | d6e2fbce0d70c2072a1c478dbd37b34d27129d74 (diff) | |
| download | kernel_samsung_smdk4412-7e796a72a2691d7094fd62da61097294d0d59ce4.zip kernel_samsung_smdk4412-7e796a72a2691d7094fd62da61097294d0d59ce4.tar.gz kernel_samsung_smdk4412-7e796a72a2691d7094fd62da61097294d0d59ce4.tar.bz2 | |
gru: collect per-context user statistics
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>
Diffstat (limited to 'drivers/misc/sgi-gru/grulib.h')
| -rw-r--r-- | drivers/misc/sgi-gru/grulib.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/misc/sgi-gru/grulib.h b/drivers/misc/sgi-gru/grulib.h index 8758655..c5865dd 100644 --- a/drivers/misc/sgi-gru/grulib.h +++ b/drivers/misc/sgi-gru/grulib.h @@ -50,6 +50,9 @@ /* For dumpping GRU chiplet state */ #define GRU_DUMP_CHIPLET_STATE _IOWR(GRU_IOCTL_NUM, 11, void *) +/* For getting gseg statistics */ +#define GRU_GET_GSEG_STATISTICS _IOWR(GRU_IOCTL_NUM, 12, void *) + /* For user TLB flushing (primarily for tests) */ #define GRU_USER_FLUSH_TLB _IOWR(GRU_IOCTL_NUM, 50, void *) @@ -61,6 +64,21 @@ #define CONTEXT_WINDOW_BYTES(th) (GRU_GSEG_PAGESIZE * (th)) #define THREAD_POINTER(p, th) (p + GRU_GSEG_PAGESIZE * (th)) +#define GSEG_START(cb) ((void *)((unsigned long)(cb) & ~(GRU_GSEG_PAGESIZE - 1))) + +/* + * Statictics kept on a per-GTS basis. + */ +struct gts_statistics { + unsigned long fmm_tlbdropin; + unsigned long upm_tlbdropin; + unsigned long context_stolen; +}; + +struct gru_get_gseg_statistics_req { + unsigned long gseg; + struct gts_statistics stats; +}; /* * Structure used to pass TLB flush parameters to the driver |