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Message-ID: <20230224165142.17745-2-quic_gokukris@quicinc.com>
Date: Fri, 24 Feb 2023 08:51:42 -0800
From: Gokul krishna Krishnakumar <quic_gokukris@...cinc.com>
To: Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...ainline.org>,
Mathieu Poirier <mathieu.poirier@...aro.org>
CC: Trilok Soni <quic_tsoni@...cinc.com>,
Satya Durga Srinivasu Prabhala <quic_satyap@...cinc.com>,
Rajendra Nayak <quic_rjendra@...cinc.com>,
"Elliot Berman" <quic_eberman@...cinc.com>,
Guru Das Srinagesh <quic_gurus@...cinc.com>,
Sibi Sankar <quic_sibis@...cinc.com>,
<linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-msm@...r.kernel.org>,
<linux-trace-kernel@...r.kernel.org>,
"Gokul krishna Krishnakumar" <quic_gokukris@...cinc.com>
Subject: [PATCH v1 1/1] remoteproc: qcom: Add remoteproc tracing
This change adds traces to the following rproc events:
1. subdevices events - (STRAT/STOP/CRASH)
2. subsystem events - (START/STOP/CRASH)
3. RPROC framework events - (Firmware Load/Authentication)
Signed-off-by: Gokul krishna Krishnakumar <quic_gokukris@...cinc.com>
---
drivers/remoteproc/Makefile | 3 ++-
drivers/remoteproc/qcom_common.c | 25 +++++++++++++++++++
drivers/remoteproc/qcom_q6v5.c | 3 +++
drivers/remoteproc/qcom_q6v5_pas.c | 17 +++++++++++++
drivers/remoteproc/qcom_sysmon.c | 13 ++++++++++
drivers/remoteproc/qcom_tracepoints.c | 10 ++++++++
include/trace/events/rproc_qcom.h | 36 +++++++++++++++++++++++++++
7 files changed, 106 insertions(+), 1 deletion(-)
create mode 100644 drivers/remoteproc/qcom_tracepoints.c
create mode 100644 include/trace/events/rproc_qcom.h
diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile
index 91314a9b43ce..e52fa815ddc0 100644
--- a/drivers/remoteproc/Makefile
+++ b/drivers/remoteproc/Makefile
@@ -22,7 +22,8 @@ obj-$(CONFIG_KEYSTONE_REMOTEPROC) += keystone_remoteproc.o
obj-$(CONFIG_MESON_MX_AO_ARC_REMOTEPROC)+= meson_mx_ao_arc.o
obj-$(CONFIG_PRU_REMOTEPROC) += pru_rproc.o
obj-$(CONFIG_QCOM_PIL_INFO) += qcom_pil_info.o
-obj-$(CONFIG_QCOM_RPROC_COMMON) += qcom_common.o
+obj-$(CONFIG_QCOM_RPROC_COMMON) += rproc_qcom_common.o
+rproc_qcom_common-y := qcom_common.o qcom_tracepoints.o
obj-$(CONFIG_QCOM_Q6V5_COMMON) += qcom_q6v5.o
obj-$(CONFIG_QCOM_Q6V5_ADSP) += qcom_q6v5_adsp.o
obj-$(CONFIG_QCOM_Q6V5_MSS) += qcom_q6v5_mss.o
diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c
index a0d4238492e9..7da3259be14a 100644
--- a/drivers/remoteproc/qcom_common.c
+++ b/drivers/remoteproc/qcom_common.c
@@ -18,6 +18,7 @@
#include <linux/slab.h>
#include <linux/soc/qcom/mdt_loader.h>
#include <linux/soc/qcom/smem.h>
+#include <trace/events/rproc_qcom.h>
#include "remoteproc_internal.h"
#include "qcom_common.h"
@@ -26,6 +27,10 @@
#define to_smd_subdev(d) container_of(d, struct qcom_rproc_subdev, subdev)
#define to_ssr_subdev(d) container_of(d, struct qcom_rproc_ssr, subdev)
+#define GLINK_SUBDEV_NAME "glink"
+#define SMD_SUBDEV_NAME "smd"
+#define SSR_SUBDEV_NAME "ssr"
+
#define MAX_NUM_OF_SS 10
#define MAX_REGION_NAME_LENGTH 16
#define SBL_MINIDUMP_SMEM_ID 602
@@ -189,6 +194,8 @@ static int glink_subdev_start(struct rproc_subdev *subdev)
{
struct qcom_rproc_glink *glink = to_glink_subdev(subdev);
+ trace_rproc_qcom_event(dev_name(glink->dev->parent), GLINK_SUBDEV_NAME, "start");
+
glink->edge = qcom_glink_smem_register(glink->dev, glink->node);
return PTR_ERR_OR_ZERO(glink->edge);
@@ -198,6 +205,9 @@ static void glink_subdev_stop(struct rproc_subdev *subdev, bool crashed)
{
struct qcom_rproc_glink *glink = to_glink_subdev(subdev);
+ trace_rproc_qcom_event(dev_name(glink->dev->parent), GLINK_SUBDEV_NAME,
+ crashed ? "crash stop" : "stop");
+
qcom_glink_smem_unregister(glink->edge);
glink->edge = NULL;
}
@@ -206,6 +216,8 @@ static void glink_subdev_unprepare(struct rproc_subdev *subdev)
{
struct qcom_rproc_glink *glink = to_glink_subdev(subdev);
+ trace_rproc_qcom_event(dev_name(glink->dev->parent), GLINK_SUBDEV_NAME, "unprepare");
+
qcom_glink_ssr_notify(glink->ssr_name);
}
@@ -300,6 +312,8 @@ static int smd_subdev_start(struct rproc_subdev *subdev)
{
struct qcom_rproc_subdev *smd = to_smd_subdev(subdev);
+ trace_rproc_qcom_event(dev_name(smd->dev->parent), SMD_SUBDEV_NAME, "start");
+
smd->edge = qcom_smd_register_edge(smd->dev, smd->node);
return PTR_ERR_OR_ZERO(smd->edge);
@@ -309,6 +323,9 @@ static void smd_subdev_stop(struct rproc_subdev *subdev, bool crashed)
{
struct qcom_rproc_subdev *smd = to_smd_subdev(subdev);
+ trace_rproc_qcom_event(dev_name(smd->dev->parent), SMD_SUBDEV_NAME,
+ crashed ? "crash stop" : "stop");
+
qcom_smd_unregister_edge(smd->edge);
smd->edge = NULL;
}
@@ -425,6 +442,8 @@ static int ssr_notify_prepare(struct rproc_subdev *subdev)
.crashed = false,
};
+ trace_rproc_qcom_event(ssr->info->name, SSR_SUBDEV_NAME, "prepare");
+
srcu_notifier_call_chain(&ssr->info->notifier_list,
QCOM_SSR_BEFORE_POWERUP, &data);
return 0;
@@ -438,6 +457,8 @@ static int ssr_notify_start(struct rproc_subdev *subdev)
.crashed = false,
};
+ trace_rproc_qcom_event(ssr->info->name, SSR_SUBDEV_NAME, "start");
+
srcu_notifier_call_chain(&ssr->info->notifier_list,
QCOM_SSR_AFTER_POWERUP, &data);
return 0;
@@ -451,6 +472,8 @@ static void ssr_notify_stop(struct rproc_subdev *subdev, bool crashed)
.crashed = crashed,
};
+ trace_rproc_qcom_event(ssr->info->name, SSR_SUBDEV_NAME, crashed ? "crash stop" : "stop");
+
srcu_notifier_call_chain(&ssr->info->notifier_list,
QCOM_SSR_BEFORE_SHUTDOWN, &data);
}
@@ -463,6 +486,8 @@ static void ssr_notify_unprepare(struct rproc_subdev *subdev)
.crashed = false,
};
+ trace_rproc_qcom_event(ssr->info->name, SSR_SUBDEV_NAME, "unprepare");
+
srcu_notifier_call_chain(&ssr->info->notifier_list,
QCOM_SSR_AFTER_SHUTDOWN, &data);
}
diff --git a/drivers/remoteproc/qcom_q6v5.c b/drivers/remoteproc/qcom_q6v5.c
index 192c7aa0e39e..31bbbe16363e 100644
--- a/drivers/remoteproc/qcom_q6v5.c
+++ b/drivers/remoteproc/qcom_q6v5.c
@@ -14,6 +14,7 @@
#include <linux/soc/qcom/qcom_aoss.h>
#include <linux/soc/qcom/smem.h>
#include <linux/soc/qcom/smem_state.h>
+#include <trace/events/rproc_qcom.h>
#include <linux/remoteproc.h>
#include "qcom_common.h"
#include "qcom_q6v5.h"
@@ -113,6 +114,7 @@ static irqreturn_t q6v5_wdog_interrupt(int irq, void *data)
dev_err(q6v5->dev, "watchdog without message\n");
q6v5->running = false;
+ trace_rproc_qcom_event(dev_name(q6v5->dev), "q6v5_wdog", msg);
rproc_report_crash(q6v5->rproc, RPROC_WATCHDOG);
return IRQ_HANDLED;
@@ -134,6 +136,7 @@ static irqreturn_t q6v5_fatal_interrupt(int irq, void *data)
dev_err(q6v5->dev, "fatal error without message\n");
q6v5->running = false;
+ trace_rproc_qcom_event(dev_name(q6v5->dev), "q6v5_fatal", msg);
rproc_report_crash(q6v5->rproc, RPROC_FATAL_ERROR);
return IRQ_HANDLED;
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index 6cc4e13c5d36..27d3a6f8c92f 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -24,6 +24,7 @@
#include <linux/soc/qcom/mdt_loader.h>
#include <linux/soc/qcom/smem.h>
#include <linux/soc/qcom/smem_state.h>
+#include <trace/events/rproc_qcom.h>
#include "qcom_common.h"
#include "qcom_pil_info.h"
@@ -206,10 +207,13 @@ static int adsp_load(struct rproc *rproc, const struct firmware *fw)
struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
int ret;
+ trace_rproc_qcom_event(dev_name(adsp->dev), "adsp_load", "enter");
+
/* Store firmware handle to be used in adsp_start() */
adsp->firmware = fw;
if (adsp->dtb_pas_id) {
+ trace_rproc_qcom_event(dev_name(adsp->dev), "dtb_firmware_loading", "enter");
ret = request_firmware(&adsp->dtb_firmware, adsp->dtb_firmware_name, adsp->dev);
if (ret) {
dev_err(adsp->dev, "request_firmware failed for %s: %d\n",
@@ -231,6 +235,8 @@ static int adsp_load(struct rproc *rproc, const struct firmware *fw)
goto release_dtb_metadata;
}
+ trace_rproc_qcom_event(dev_name(adsp->dev), "adsp_load", "exit");
+
return 0;
release_dtb_metadata:
@@ -247,6 +253,8 @@ static int adsp_start(struct rproc *rproc)
struct qcom_adsp *adsp = (struct qcom_adsp *)rproc->priv;
int ret;
+ trace_rproc_qcom_event(dev_name(adsp->dev), "adsp_start", "enter");
+
ret = qcom_q6v5_prepare(&adsp->q6v5);
if (ret)
return ret;
@@ -276,6 +284,7 @@ static int adsp_start(struct rproc *rproc)
}
if (adsp->dtb_pas_id) {
+ trace_rproc_qcom_event(dev_name(adsp->dev), "dtb_auth_reset", "enter");
ret = qcom_scm_pas_auth_and_reset(adsp->dtb_pas_id);
if (ret) {
dev_err(adsp->dev,
@@ -289,6 +298,8 @@ static int adsp_start(struct rproc *rproc)
if (ret)
goto disable_px_supply;
+ trace_rproc_qcom_event(dev_name(adsp->dev), "Q6_firmware_loading", "enter");
+
ret = qcom_mdt_load_no_init(adsp->dev, adsp->firmware, rproc->firmware, adsp->pas_id,
adsp->mem_region, adsp->mem_phys, adsp->mem_size,
&adsp->mem_reloc);
@@ -296,6 +307,7 @@ static int adsp_start(struct rproc *rproc)
goto release_pas_metadata;
qcom_pil_info_store(adsp->info_name, adsp->mem_phys, adsp->mem_size);
+ trace_rproc_qcom_event(dev_name(adsp->dev), "Q6_auth_reset", "enter");
ret = qcom_scm_pas_auth_and_reset(adsp->pas_id);
if (ret) {
@@ -303,6 +315,7 @@ static int adsp_start(struct rproc *rproc)
"failed to authenticate image and release reset\n");
goto release_pas_metadata;
}
+ trace_rproc_qcom_event(dev_name(adsp->dev), "Q6_auth_reset", "exit");
ret = qcom_q6v5_wait_for_start(&adsp->q6v5, msecs_to_jiffies(5000));
if (ret == -ETIMEDOUT) {
@@ -364,6 +377,8 @@ static int adsp_stop(struct rproc *rproc)
int handover;
int ret;
+ trace_rproc_qcom_event(dev_name(adsp->dev), "adsp_stop", "enter");
+
ret = qcom_q6v5_request_stop(&adsp->q6v5, adsp->sysmon);
if (ret == -ETIMEDOUT)
dev_err(adsp->dev, "timed out on wait\n");
@@ -385,6 +400,8 @@ static int adsp_stop(struct rproc *rproc)
if (handover)
qcom_pas_handover(&adsp->q6v5);
+ trace_rproc_qcom_event(dev_name(adsp->dev), "adsp_stop", "exit");
+
return ret;
}
diff --git a/drivers/remoteproc/qcom_sysmon.c b/drivers/remoteproc/qcom_sysmon.c
index 746f56b4bafb..57b8a03d4a30 100644
--- a/drivers/remoteproc/qcom_sysmon.c
+++ b/drivers/remoteproc/qcom_sysmon.c
@@ -13,9 +13,12 @@
#include <linux/platform_device.h>
#include <linux/remoteproc/qcom_rproc.h>
#include <linux/rpmsg.h>
+#include <trace/events/rproc_qcom.h>
#include "qcom_common.h"
+#define SYSMON_SUBDEV_NAME "sysmon"
+
static BLOCKING_NOTIFIER_HEAD(sysmon_notifiers);
struct qcom_sysmon {
@@ -477,6 +480,8 @@ static int sysmon_prepare(struct rproc_subdev *subdev)
.ssr_event = SSCTL_SSR_EVENT_BEFORE_POWERUP
};
+ trace_rproc_qcom_event(dev_name(sysmon->rproc->dev.parent), SYSMON_SUBDEV_NAME, "prepare");
+
mutex_lock(&sysmon->state_lock);
sysmon->state = SSCTL_SSR_EVENT_BEFORE_POWERUP;
blocking_notifier_call_chain(&sysmon_notifiers, 0, (void *)&event);
@@ -504,6 +509,8 @@ static int sysmon_start(struct rproc_subdev *subdev)
.ssr_event = SSCTL_SSR_EVENT_AFTER_POWERUP
};
+ trace_rproc_qcom_event(dev_name(sysmon->rproc->dev.parent), SYSMON_SUBDEV_NAME, "start");
+
reinit_completion(&sysmon->ssctl_comp);
mutex_lock(&sysmon->state_lock);
sysmon->state = SSCTL_SSR_EVENT_AFTER_POWERUP;
@@ -540,6 +547,9 @@ static void sysmon_stop(struct rproc_subdev *subdev, bool crashed)
.ssr_event = SSCTL_SSR_EVENT_BEFORE_SHUTDOWN
};
+ trace_rproc_qcom_event(dev_name(sysmon->rproc->dev.parent), SYSMON_SUBDEV_NAME,
+ crashed ? "crash stop" : "stop");
+
sysmon->shutdown_acked = false;
mutex_lock(&sysmon->state_lock);
@@ -571,6 +581,9 @@ static void sysmon_unprepare(struct rproc_subdev *subdev)
.ssr_event = SSCTL_SSR_EVENT_AFTER_SHUTDOWN
};
+ trace_rproc_qcom_event(dev_name(sysmon->rproc->dev.parent), SYSMON_SUBDEV_NAME,
+ "unprepare");
+
mutex_lock(&sysmon->state_lock);
sysmon->state = SSCTL_SSR_EVENT_AFTER_SHUTDOWN;
blocking_notifier_call_chain(&sysmon_notifiers, 0, (void *)&event);
diff --git a/drivers/remoteproc/qcom_tracepoints.c b/drivers/remoteproc/qcom_tracepoints.c
new file mode 100644
index 000000000000..546ebe90f141
--- /dev/null
+++ b/drivers/remoteproc/qcom_tracepoints.c
@@ -0,0 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Qualcomm Technologies, Inc. Peripheral Image Loader helpers
+ *
+ * Copyright (c) 2021 The Linux Foundation. All rights reserved.
+ */
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/rproc_qcom.h>
+EXPORT_TRACEPOINT_SYMBOL(rproc_qcom_event);
diff --git a/include/trace/events/rproc_qcom.h b/include/trace/events/rproc_qcom.h
new file mode 100644
index 000000000000..b8748873ab25
--- /dev/null
+++ b/include/trace/events/rproc_qcom.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2021 The Linux Foundation. All rights reserved.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM rproc_qcom
+
+#if !defined(_TRACE_RPROC_QCOM_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_RPROC_QCOM_H
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(rproc_qcom_event,
+
+ TP_PROTO(const char *name, const char *event, const char *subevent),
+
+ TP_ARGS(name, event, subevent),
+
+ TP_STRUCT__entry(
+ __string(name, name)
+ __string(event, event)
+ __string(subevent, subevent)
+ ),
+
+ TP_fast_assign(
+ __assign_str(name, name);
+ __assign_str(event, event);
+ __assign_str(subevent, subevent);
+ ),
+
+ TP_printk("%s: %s: %s", __get_str(name), __get_str(event), __get_str(subevent))
+);
+#endif /* _TRACE_RPROC_QCOM_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
--
2.39.2
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