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-rw-r--r--arch/mips/oprofile/common.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index e74732449478..a26cbe372e06 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -18,6 +18,7 @@
extern struct op_mips_model op_model_mipsxx_ops __weak;
extern struct op_mips_model op_model_loongson2_ops __weak;
+extern struct op_mips_model op_model_loongson3_ops __weak;
static struct op_mips_model *model;
@@ -104,8 +105,17 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
case CPU_LOONGSON2:
lmodel = &op_model_loongson2_ops;
break;
+ case CPU_LOONGSON3:
+ lmodel = &op_model_loongson3_ops;
+ break;
};
+ /*
+ * Always set the backtrace. This allows unsupported CPU types to still
+ * use timer-based oprofile.
+ */
+ ops->backtrace = op_mips_backtrace;
+
if (!lmodel)
return -ENODEV;
@@ -121,7 +131,6 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
ops->start = op_mips_start;
ops->stop = op_mips_stop;
ops->cpu_type = lmodel->cpu_type;
- ops->backtrace = op_mips_backtrace;
printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
lmodel->cpu_type);