[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>
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@ -138,11 +138,14 @@ static int ppro_check_ctrs(struct pt_regs * const regs,
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static void ppro_start(struct op_msrs const * const msrs)
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static void ppro_start(struct op_msrs const * const msrs)
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{
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{
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unsigned int low,high;
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unsigned int low,high;
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int i;
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if (reset_value[0]) {
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for (i = 0; i < NUM_COUNTERS; ++i) {
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CTRL_READ(low, high, msrs, 0);
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if (reset_value[i]) {
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CTRL_SET_ACTIVE(low);
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CTRL_READ(low, high, msrs, i);
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CTRL_WRITE(low, high, msrs, 0);
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CTRL_SET_ACTIVE(low);
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CTRL_WRITE(low, high, msrs, i);
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}
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}
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}
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}
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}
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@ -150,11 +153,14 @@ static void ppro_start(struct op_msrs const * const msrs)
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static void ppro_stop(struct op_msrs const * const msrs)
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static void ppro_stop(struct op_msrs const * const msrs)
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{
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{
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unsigned int low,high;
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unsigned int low,high;
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int i;
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if (reset_value[0]) {
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for (i = 0; i < NUM_COUNTERS; ++i) {
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CTRL_READ(low, high, msrs, 0);
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if (!reset_value[i])
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continue;
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CTRL_READ(low, high, msrs, i);
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CTRL_SET_INACTIVE(low);
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CTRL_SET_INACTIVE(low);
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CTRL_WRITE(low, high, msrs, 0);
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CTRL_WRITE(low, high, msrs, i);
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}
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}
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}
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}
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