1 files changed, 103 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/trace.h b/arch/powerpc/include/asm/trace.h
index 08cd60cd70b7..82cc2c6704e6 100644
--- a/arch/powerpc/include/asm/trace.h
+++ b/arch/powerpc/include/asm/trace.h
@@ -119,6 +119,109 @@ TRACE_EVENT_FN_COND(hcall_exit,
 );
 #endif
 
+#ifdef CONFIG_PPC_RTAS
+
+#include <asm/rtas-types.h>
+
+TRACE_EVENT(rtas_input,
+
+	TP_PROTO(struct rtas_args *rtas_args, const char *name),
+
+	TP_ARGS(rtas_args, name),
+
+	TP_STRUCT__entry(
+		__field(__u32, nargs)
+		__string(name, name)
+		__dynamic_array(__u32, inputs, be32_to_cpu(rtas_args->nargs))
+	),
+
+	TP_fast_assign(
+		__entry->nargs = be32_to_cpu(rtas_args->nargs);
+		__assign_str(name, name);
+		be32_to_cpu_array(__get_dynamic_array(inputs), rtas_args->args, __entry->nargs);
+	),
+
+	TP_printk("%s arguments: %s", __get_str(name),
+		  __print_array(__get_dynamic_array(inputs), __entry->nargs, 4)
+	)
+);
+
+TRACE_EVENT(rtas_output,
+
+	TP_PROTO(struct rtas_args *rtas_args, const char *name),
+
+	TP_ARGS(rtas_args, name),
+
+	TP_STRUCT__entry(
+		__field(__u32, nr_other)
+		__field(__s32, status)
+		__string(name, name)
+		__dynamic_array(__u32, other_outputs, be32_to_cpu(rtas_args->nret) - 1)
+	),
+
+	TP_fast_assign(
+		__entry->nr_other = be32_to_cpu(rtas_args->nret) - 1;
+		__entry->status = be32_to_cpu(rtas_args->rets[0]);
+		__assign_str(name, name);
+		be32_to_cpu_array(__get_dynamic_array(other_outputs),
+				  &rtas_args->rets[1], __entry->nr_other);
+	),
+
+	TP_printk("%s status: %d, other outputs: %s", __get_str(name), __entry->status,
+		  __print_array(__get_dynamic_array(other_outputs),
+				__entry->nr_other, 4)
+	)
+);
+
+DECLARE_EVENT_CLASS(rtas_parameter_block,
+
+	TP_PROTO(struct rtas_args *rtas_args),
+
+	TP_ARGS(rtas_args),
+
+	TP_STRUCT__entry(
+		__field(u32, token)
+		__field(u32, nargs)
+		__field(u32, nret)
+		__array(__u32, params, 16)
+	),
+
+	TP_fast_assign(
+		__entry->token = be32_to_cpu(rtas_args->token);
+		__entry->nargs = be32_to_cpu(rtas_args->nargs);
+		__entry->nret = be32_to_cpu(rtas_args->nret);
+		be32_to_cpu_array(__entry->params, rtas_args->args, ARRAY_SIZE(rtas_args->args));
+	),
+
+	TP_printk("token=%u nargs=%u nret=%u params:"
+		  " [0]=0x%08x [1]=0x%08x [2]=0x%08x [3]=0x%08x"
+		  " [4]=0x%08x [5]=0x%08x [6]=0x%08x [7]=0x%08x"
+		  " [8]=0x%08x [9]=0x%08x [10]=0x%08x [11]=0x%08x"
+		  " [12]=0x%08x [13]=0x%08x [14]=0x%08x [15]=0x%08x",
+		  __entry->token, __entry->nargs, __entry->nret,
+		  __entry->params[0], __entry->params[1], __entry->params[2], __entry->params[3],
+		  __entry->params[4], __entry->params[5], __entry->params[6], __entry->params[7],
+		  __entry->params[8], __entry->params[9], __entry->params[10], __entry->params[11],
+		  __entry->params[12], __entry->params[13], __entry->params[14], __entry->params[15]
+	)
+);
+
+DEFINE_EVENT(rtas_parameter_block, rtas_ll_entry,
+
+	TP_PROTO(struct rtas_args *rtas_args),
+
+	TP_ARGS(rtas_args)
+);
+
+DEFINE_EVENT(rtas_parameter_block, rtas_ll_exit,
+
+	TP_PROTO(struct rtas_args *rtas_args),
+
+	TP_ARGS(rtas_args)
+);
+
+#endif /* CONFIG_PPC_RTAS */
+
 #ifdef CONFIG_PPC_POWERNV
 extern int opal_tracepoint_regfunc(void);
 extern void opal_tracepoint_unregfunc(void);