diff options
| author | Arun Sharma <arun.sharma@google.com> | 2006-09-29 02:00:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-29 09:18:11 -0700 |
| commit | 6b77df08a36d989f7dd00ccb6a026a0e96170d16 (patch) | |
| tree | 54b742acda47156c102f8af940f7def92413f1ef | |
| parent | 50462062a02226a698a211d5bd535376c89b8603 (diff) | |
[PATCH] oprofile: ppro: need to enable/disable all the counters
Need to enable/disable all the counters instead of just counter 0.
This affects all cpus with family=6, including i386/core. Usual symptom:
only counter 0 provides samples. Other counters don't produce samples.
Signed-off-by: Arun Sharma <arun.sharma@google.com>
Cc: Philippe Elie <phil.el@wanadoo.fr>
Cc: John Levon <levon@movementarian.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/i386/oprofile/op_model_ppro.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/arch/i386/oprofile/op_model_ppro.c b/arch/i386/oprofile/op_model_ppro.c index f88e05ba8eb..ca2447e05e1 100644 --- a/arch/i386/oprofile/op_model_ppro.c +++ b/arch/i386/oprofile/op_model_ppro.c @@ -138,11 +138,14 @@ static int ppro_check_ctrs(struct pt_regs * const regs, static void ppro_start(struct op_msrs const * const msrs) { unsigned int low,high; + int i; - if (reset_value[0]) { - CTRL_READ(low, high, msrs, 0); - CTRL_SET_ACTIVE(low); - CTRL_WRITE(low, high, msrs, 0); + for (i = 0; i < NUM_COUNTERS; ++i) { + if (reset_value[i]) { + CTRL_READ(low, high, msrs, i); + CTRL_SET_ACTIVE(low); + CTRL_WRITE(low, high, msrs, i); + } } } @@ -150,11 +153,14 @@ static void ppro_start(struct op_msrs const * const msrs) static void ppro_stop(struct op_msrs const * const msrs) { unsigned int low,high; + int i; - if (reset_value[0]) { - CTRL_READ(low, high, msrs, 0); + for (i = 0; i < NUM_COUNTERS; ++i) { + if (!reset_value[i]) + continue; + CTRL_READ(low, high, msrs, i); CTRL_SET_INACTIVE(low); - CTRL_WRITE(low, high, msrs, 0); + CTRL_WRITE(low, high, msrs, i); } } |