[MIPS] Oprofile: Reset all performance registers for MIPS_MT_SMP configs
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index 9d08608..69a8bcf 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -74,13 +74,13 @@
__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 @@
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 @@
counters = __n_counters();
}
-#ifdef CONFIG_MIPS_MT_SMP
- counters >> 1;
-#endif
return counters;
}
@@ -270,6 +266,10 @@
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 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;
}