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[MIPS] Oprofile: Reset all performance registers for MIPS_MT_SMP configs

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Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Chris Dearman 2007-03-01 17:58:24 +00:00 committed by Ralf Baechle
parent a967e127d0
commit 795a22583b
1 changed files with 13 additions and 9 deletions
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22
arch/mips/oprofile/op_model_mipsxx.c
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@ -74,13 +74,13 @@ static inline void w_c0_ ## r ## n(unsigned int value) \
__define_perf_accessors(perfcntr, 0, 2)
__define_perf_accessors(perfcntr, 1, 3)
__define_perf_accessors(perfcntr, 2, 2)
__define_perf_accessors(perfcntr, 3, 2)
__define_perf_accessors(perfcntr, 2, 0)
__define_perf_accessors(perfcntr, 3, 1)
__define_perf_accessors(perfctrl, 0, 2)
__define_perf_accessors(perfctrl, 1, 3)
__define_perf_accessors(perfctrl, 2, 2)
__define_perf_accessors(perfctrl, 3, 2)
__define_perf_accessors(perfctrl, 2, 0)
__define_perf_accessors(perfctrl, 3, 1)
struct op_mips_model op_model_mipsxx_ops;
@ -97,7 +97,6 @@ static void mipsxx_reg_setup(struct op_counter_config *ctr)
int i;
/* Compute the performance counter control word. */
/* For now count kernel and user mode */
for (i = 0; i < counters; i++) {
reg.control[i] = 0;
reg.counter[i] = 0;
@ -234,9 +233,6 @@ static inline int n_counters(void)
counters = __n_counters();
}
#ifdef CONFIG_MIPS_MT_SMP
counters >> 1;
#endif
return counters;
}
@ -270,6 +266,10 @@ static int __init mipsxx_init(void)
reset_counters(counters);
#ifdef CONFIG_MIPS_MT_SMP
counters >>= 1;
#endif
op_model_mipsxx_ops.num_counters = counters;
switch (current_cpu_data.cputype) {
case CPU_20KC:
@ -326,7 +326,11 @@ static int __init mipsxx_init(void)
static void mipsxx_exit(void)
{
reset_counters(op_model_mipsxx_ops.num_counters);
int counters = op_model_mipsxx_ops.num_counters;
#ifdef CONFIG_MIPS_MT_SMP
counters <<= 1;
#endif
reset_counters(counters);
perf_irq = null_perf_irq;
}