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Commit fc087fe5 authored by Lina Iyer's avatar Lina Iyer Committed by Andy Gross
Browse files

drivers: qcom: rpmh-rsc: log RPMH requests in FTRACE 



Log sent RPMH requests and interrupt responses in FTRACE.

Signed-off-by: default avatarLina Iyer <ilina@codeaurora.org>
Reviewed-by: default avatarSteven Rostedt (VMware) <rostedt@goodmis.org>
[rplsssn@codeaurora.org: rebase to v4.18-rc1 & fix merge conflict]
Signed-off-by: default avatarRaju P.L.S.S.S.N <rplsssn@codeaurora.org>
Signed-off-by: default avatarAndy Gross <andy.gross@linaro.org>
parent 2e4690a0

drivers/soc/qcom/Makefile

+1 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0

CFLAGS_rpmh-rsc.o := -I$(src)

obj-$(CONFIG_QCOM_GENI_SE) +=	qcom-geni-se.o

obj-$(CONFIG_QCOM_COMMAND_DB) += cmd-db.o

obj-$(CONFIG_QCOM_GLINK_SSR) +=	glink_ssr.o

drivers/soc/qcom/rpmh-rsc.c

+10 −1
Original line number Diff line number Diff line
@@ -23,6 +23,9 @@ 


#include "rpmh-internal.h"



#define CREATE_TRACE_POINTS

#include "trace-rpmh.h"



#define RSC_DRV_TCS_OFFSET		672

#define RSC_DRV_CMD_OFFSET		20
@@ -135,7 +138,7 @@ static const struct tcs_request *get_req_from_tcs(struct rsc_drv *drv, 
static irqreturn_t tcs_tx_done(int irq, void *p)

{

	struct rsc_drv *drv = p;

	int i, j;

	int i, j, err;

	unsigned long irq_status;

	const struct tcs_request *req;

	struct tcs_cmd *cmd;
@@ -149,6 +152,7 @@ static irqreturn_t tcs_tx_done(int irq, void *p) 
			goto skip;

		}



		err = 0;

		for (j = 0; j < req->num_cmds; j++) {

			u32 sts;
@@ -159,8 +163,11 @@ static irqreturn_t tcs_tx_done(int irq, void *p) 
			   !(sts & CMD_STATUS_COMPL))) {

				pr_err("Incomplete request: %s: addr=%#x data=%#x",

				       drv->name, cmd->addr, cmd->data);

				err = -EIO;

			}

		}



		trace_rpmh_tx_done(drv, i, req, err);

skip:

		/* Reclaim the TCS */

		write_tcs_reg(drv, RSC_DRV_CMD_ENABLE, i, 0);
@@ -194,9 +201,11 @@ static void __tcs_buffer_write(struct rsc_drv *drv, int tcs_id, int cmd_id, 
		cmd_complete |= cmd->wait << j;

		msgid = cmd_msgid;

		msgid |= cmd->wait ? CMD_MSGID_RESP_REQ : 0;



		write_tcs_cmd(drv, RSC_DRV_CMD_MSGID, tcs_id, j, msgid);

		write_tcs_cmd(drv, RSC_DRV_CMD_ADDR, tcs_id, j, cmd->addr);

		write_tcs_cmd(drv, RSC_DRV_CMD_DATA, tcs_id, j, cmd->data);

		trace_rpmh_send_msg(drv, tcs_id, j, msgid, cmd);

	}



	write_tcs_reg(drv, RSC_DRV_CMD_WAIT_FOR_CMPL, tcs_id, cmd_complete);

drivers/soc/qcom/trace-rpmh.h

0 → 100644
+82 −0
Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

/*

 * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved.

 */



#if !defined(_TRACE_RPMH_H) || defined(TRACE_HEADER_MULTI_READ)

#define _TRACE_RPMH_H



#undef TRACE_SYSTEM

#define TRACE_SYSTEM rpmh



#include <linux/tracepoint.h>

#include "rpmh-internal.h"



TRACE_EVENT(rpmh_tx_done,



	TP_PROTO(struct rsc_drv *d, int m, const struct tcs_request *r, int e),



	TP_ARGS(d, m, r, e),



	TP_STRUCT__entry(

			 __string(name, d->name)

			 __field(int, m)

			 __field(u32, addr)

			 __field(u32, data)

			 __field(int, err)

	),



	TP_fast_assign(

		       __assign_str(name, d->name);

		       __entry->m = m;

		       __entry->addr = r->cmds[0].addr;

		       __entry->data = r->cmds[0].data;

		       __entry->err = e;

	),



	TP_printk("%s: ack: tcs-m: %d addr: %#x data: %#x errno: %d",

		  __get_str(name), __entry->m, __entry->addr, __entry->data,

		  __entry->err)

);



TRACE_EVENT(rpmh_send_msg,



	TP_PROTO(struct rsc_drv *d, int m, int n, u32 h,

		 const struct tcs_cmd *c),



	TP_ARGS(d, m, n, h, c),



	TP_STRUCT__entry(

			 __string(name, d->name)

			 __field(int, m)

			 __field(int, n)

			 __field(u32, hdr)

			 __field(u32, addr)

			 __field(u32, data)

			 __field(bool, wait)

	),



	TP_fast_assign(

		       __assign_str(name, d->name);

		       __entry->m = m;

		       __entry->n = n;

		       __entry->hdr = h;

		       __entry->addr = c->addr;

		       __entry->data = c->data;

		       __entry->wait = c->wait;

	),



	TP_printk("%s: send-msg: tcs(m): %d cmd(n): %d msgid: %#x addr: %#x data: %#x complete: %d",

		  __get_str(name), __entry->m, __entry->n, __entry->hdr,

		  __entry->addr, __entry->data, __entry->wait)

);



#endif /* _TRACE_RPMH_H */



#undef TRACE_INCLUDE_PATH

#define TRACE_INCLUDE_PATH .



#undef TRACE_INCLUDE_FILE

#define TRACE_INCLUDE_FILE trace-rpmh



#include <trace/define_trace.h>