Merge "trace, scm: trace scm calls" (87578a90) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/soc/qcom/scm.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -24,6 +24,9 @@

		#include <soc/qcom/scm.h>

		#define CREATE_TRACE_POINTS
		#include <trace/events/scm.h>

		#define SCM_ENOMEM -5
		#define SCM_EOPNOTSUPP -4
		#define SCM_EINVAL_ADDR -3
		@@ -661,6 +664,8 @@ int scm_call2(u32 fn_id, struct scm_desc *desc)
		x0, desc->arginfo, desc->args[0], desc->args[1],
		desc->args[2], desc->x5);

		trace_scm_call_start(x0, desc);

		if (scm_version == SCM_ARMV8_64)
		ret = __scm_call_armv8_64(x0, desc->arginfo,
		desc->args[0], desc->args[1],
		@@ -674,6 +679,8 @@ int scm_call2(u32 fn_id, struct scm_desc *desc)
		&desc->ret[0], &desc->ret[1],
		&desc->ret[2]);

		trace_scm_call_end(desc);

		if (SCM_SVC_ID(fn_id) == SCM_SVC_LMH)
		mutex_unlock(&scm_lmh_lock);

include/trace/events/scm.h

0 → 100644

+68 −0

Original line number	Diff line number	Diff line
		/* Copyright (c) 2016, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		* only version 2 as published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*/

		#undef TRACE_SYSTEM
		#define TRACE_SYSTEM scm

		#if !defined(_TRACE_SCM_H) \|\| defined(TRACE_HEADER_MULTI_READ)
		#define _TRACE_SCM_H
		#include <linux/types.h>
		#include <linux/tracepoint.h>
		#include <soc/qcom/scm.h>

		TRACE_EVENT(scm_call_start,

		TP_PROTO(u64 x0, struct scm_desc *p),

		TP_ARGS(x0, p),

		TP_STRUCT__entry(
		__field(u64, x0)
		__field(u32, arginfo)
		__array(u64, args, MAX_SCM_ARGS)
		__field(u64, x5)
		),

		TP_fast_assign(
		__entry->x0 = x0;
		__entry->arginfo = p->arginfo;
		memcpy(__entry->args, p->args, MAX_SCM_ARGS);
		__entry->x5 = p->x5;
		),

		TP_printk("func id=%#llx (args: %#x, %#llx, %#llx, %#llx, %#llx)",
		__entry->x0, __entry->arginfo, __entry->args[0],
		__entry->args[1], __entry->args[2], __entry->x5)
		);


		TRACE_EVENT(scm_call_end,

		TP_PROTO(struct scm_desc *p),

		TP_ARGS(p),

		TP_STRUCT__entry(
		__array(u64, ret, MAX_SCM_RETS)
		),

		TP_fast_assign(
		memcpy(__entry->ret, p->ret, MAX_SCM_RETS);
		),

		TP_printk("ret: %#llx, %#llx, %#llx",
		__entry->ret[0], __entry->ret[1], __entry->ret[2])
		);
		#endif /* _TRACE_SCM_H */

		/* This part must be outside protection */
		#include <trace/define_trace.h>