2023-05-31 21:48:32

by Gokul krishna Krishnakumar

Subject: [PATCH v4 2/2] remoteproc: qcom: Add remoteproc tracing

This change attempts to add traces for start, stop, crash
subsystem/subdevice events, these will serve as standard checkpoints in
code and could help in debugging the failures in subdevice/subsystem
prepare, start, stop and unprepare functions. This will also breakdown
the time taken for each step in remoteproc bootup/shutdown process.

Signed-off-by: Gokul krishna Krishnakumar <[email protected]>
---
drivers/remoteproc/qcom_common.c | 37 ++++++++++++++++++++++++++++
drivers/remoteproc/qcom_q6v5.c | 9 +++++++
drivers/remoteproc/remoteproc_core.c | 8 ++++++
3 files changed, 54 insertions(+)

diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c
index 020349f8979d..5bf6b8bc67c5 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/remoteproc_tracepoints.h>

#include "remoteproc_internal.h"
#include "qcom_common.h"
@@ -186,6 +187,10 @@ static int glink_subdev_start(struct rproc_subdev *subdev)

glink->edge = qcom_glink_smem_register(glink->dev, glink->node);

+ trace_rproc_subdev_event(dev_name(glink->dev->parent),
+ "glink", "start",
+ PTR_ERR_OR_ZERO(glink->edge));
+
return PTR_ERR_OR_ZERO(glink->edge);
}

@@ -194,6 +199,11 @@ static void glink_subdev_stop(struct rproc_subdev *subdev, bool crashed)
struct qcom_rproc_glink *glink = to_glink_subdev(subdev);

qcom_glink_smem_unregister(glink->edge);
+
+ trace_rproc_subdev_event(dev_name(glink->dev->parent),
+ "glink", "stop",
+ PTR_ERR_OR_ZERO(glink->edge));
+
glink->edge = NULL;
}

@@ -201,6 +211,10 @@ static void glink_subdev_unprepare(struct rproc_subdev *subdev)
{
struct qcom_rproc_glink *glink = to_glink_subdev(subdev);

+ trace_rproc_subdev_event(dev_name(glink->dev->parent),
+ "glink", "unprepare",
+ PTR_ERR_OR_ZERO(glink->edge));
+
qcom_glink_ssr_notify(glink->ssr_name);
}

@@ -295,6 +309,10 @@ static int smd_subdev_start(struct rproc_subdev *subdev)
{
struct qcom_rproc_subdev *smd = to_smd_subdev(subdev);

+ trace_rproc_subdev_event(dev_name(smd->dev->parent),
+ "smd", "start",
+ PTR_ERR_OR_ZERO(smd->edge));
+
smd->edge = qcom_smd_register_edge(smd->dev, smd->node);

return PTR_ERR_OR_ZERO(smd->edge);
@@ -304,6 +322,10 @@ static void smd_subdev_stop(struct rproc_subdev *subdev, bool crashed)
{
struct qcom_rproc_subdev *smd = to_smd_subdev(subdev);

+ trace_rproc_subdev_event(dev_name(smd->dev->parent),
+ "smd", "stop",
+ PTR_ERR_OR_ZERO(smd->edge));
+
qcom_smd_unregister_edge(smd->edge);
smd->edge = NULL;
}
@@ -420,6 +442,10 @@ static int ssr_notify_prepare(struct rproc_subdev *subdev)
.crashed = false,
};

+ trace_rproc_subdev_event(ssr->info->name,
+ "ssr", "QCOM_SSR_BEFORE_POWERUP",
+ data.crashed);
+
srcu_notifier_call_chain(&ssr->info->notifier_list,
QCOM_SSR_BEFORE_POWERUP, &data);
return 0;
@@ -432,6 +458,9 @@ static int ssr_notify_start(struct rproc_subdev *subdev)
.name = ssr->info->name,
.crashed = false,
};
+ trace_rproc_subdev_event(ssr->info->name,
+ "ssr", "QCOM_SSR_AFTER_POWERUP",
+ data.crashed);

srcu_notifier_call_chain(&ssr->info->notifier_list,
QCOM_SSR_AFTER_POWERUP, &data);
@@ -446,6 +475,10 @@ static void ssr_notify_stop(struct rproc_subdev *subdev, bool crashed)
.crashed = crashed,
};

+ trace_rproc_subdev_event(ssr->info->name,
+ "ssr", "QCOM_SSR_BEFORE_SHUTDOWN",
+ data.crashed);
+
srcu_notifier_call_chain(&ssr->info->notifier_list,
QCOM_SSR_BEFORE_SHUTDOWN, &data);
}
@@ -458,6 +491,10 @@ static void ssr_notify_unprepare(struct rproc_subdev *subdev)
.crashed = false,
};

+ trace_rproc_subdev_event(ssr->info->name,
+ "ssr", "QCOM_SSR_AFTER_SHUTDOWN",
+ data.crashed);
+
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 497acfb33f8f..cf3f322be65e 100644
--- a/drivers/remoteproc/qcom_q6v5.c
+++ b/drivers/remoteproc/qcom_q6v5.c
@@ -15,6 +15,7 @@
#include <linux/soc/qcom/smem.h>
#include <linux/soc/qcom/smem_state.h>
#include <linux/remoteproc.h>
+#include <trace/events/remoteproc_tracepoints.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_interrupt_event(q6v5->rproc, "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_interrupt_event(q6v5->rproc, "fatal", msg);
rproc_report_crash(q6v5->rproc, RPROC_FATAL_ERROR);

return IRQ_HANDLED;
@@ -165,6 +168,8 @@ int qcom_q6v5_wait_for_start(struct qcom_q6v5 *q6v5, int timeout)
if (!ret)
disable_irq(q6v5->handover_irq);

+ trace_rproc_interrupt_event(q6v5->rproc, "Ready", !ret ? "-ETIMEDOUT":"done");
+
return !ret ? -ETIMEDOUT : 0;
}
EXPORT_SYMBOL_GPL(qcom_q6v5_wait_for_start);
@@ -180,6 +185,8 @@ static irqreturn_t q6v5_handover_interrupt(int irq, void *data)

q6v5->handover_issued = true;

+ trace_rproc_interrupt_event(q6v5->rproc, "handover", "Proxy votes removed");
+
return IRQ_HANDLED;
}

@@ -216,6 +223,8 @@ int qcom_q6v5_request_stop(struct qcom_q6v5 *q6v5, struct qcom_sysmon *sysmon)

qcom_smem_state_update_bits(q6v5->state, BIT(q6v5->stop_bit), 0);

+ trace_rproc_interrupt_event(q6v5->rproc, "Stop", ret ? "done":"-EETIMEDOUT");
+
return ret == 0 ? -ETIMEDOUT : 0;
}
EXPORT_SYMBOL_GPL(qcom_q6v5_request_stop);
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 1cd4815a6dd1..d8dc91a15477 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -38,6 +38,7 @@
#include <linux/virtio_ring.h>
#include <asm/byteorder.h>
#include <linux/platform_device.h>
+#include <trace/events/remoteproc_tracepoints.h>

#include "remoteproc_internal.h"

@@ -1270,6 +1271,7 @@ static int rproc_start(struct rproc *rproc, const struct firmware *fw)

/* load the ELF segments to memory */
ret = rproc_load_segments(rproc, fw);
+ trace_rproc_load_event(rproc, ret);
if (ret) {
dev_err(dev, "Failed to load program segments: %d\n", ret);
return ret;
@@ -1305,6 +1307,7 @@ static int rproc_start(struct rproc *rproc, const struct firmware *fw)

/* Start any subdevices for the remote processor */
ret = rproc_start_subdevices(rproc);
+
if (ret) {
dev_err(dev, "failed to probe subdevices for %s: %d\n",
rproc->name, ret);
@@ -1729,6 +1732,8 @@ static int rproc_stop(struct rproc *rproc, bool crashed)
return ret;
}

+ trace_rproc_stop_event(rproc, crashed ? "crash stop" : "stop");
+
rproc_unprepare_subdevices(rproc);

rproc->state = RPROC_OFFLINE;
@@ -1939,6 +1944,8 @@ int rproc_boot(struct rproc *rproc)
dev_info(dev, "attaching to %s\n", rproc->name);

ret = rproc_attach(rproc);
+ trace_rproc_start_event(rproc, ret);
+
} else {
dev_info(dev, "powering up %s\n", rproc->name);

@@ -1950,6 +1957,7 @@ int rproc_boot(struct rproc *rproc)
}

ret = rproc_fw_boot(rproc, firmware_p);
+ trace_rproc_start_event(rproc, ret);

release_firmware(firmware_p);
}
--
2.40.1

2023-06-01 14:26:48

by kernel test robot

Subject: Re: [PATCH v4 2/2] remoteproc: qcom: Add remoteproc tracing

Hi Gokul,

kernel test robot noticed the following build errors:

[auto build test ERROR on remoteproc/rproc-next]
[also build test ERROR on linus/master v6.4-rc4 next-20230601]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Gokul-krishna-Krishnakumar/remoteproc-Introduce-traces-for-remoteproc-events/20230601-053050
base: git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux.git rproc-next
patch link: https://lore.kernel.org/r/bd949ac8225abb842630bd7f4a2d45334c58f17f.1685486994.git.quic_gokukris%40quicinc.com
patch subject: [PATCH v4 2/2] remoteproc: qcom: Add remoteproc tracing
config: arm64-randconfig-r036-20230531 (https://download.01.org/0day-ci/archive/20230601/[email protected]/config)
compiler: aarch64-linux-gcc (GCC) 12.3.0
reproduce (this is a W=1 build):
mkdir -p ~/bin
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/8a5252420291719cda102eb8ca72295283540cd4
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Gokul-krishna-Krishnakumar/remoteproc-Introduce-traces-for-remoteproc-events/20230601-053050
git checkout 8a5252420291719cda102eb8ca72295283540cd4
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=arm64 olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "__tracepoint_rproc_subdev_event" [drivers/remoteproc/qcom_common.ko] undefined!
>> ERROR: modpost: "__traceiter_rproc_subdev_event" [drivers/remoteproc/qcom_common.ko] undefined!
>> ERROR: modpost: "__tracepoint_rproc_interrupt_event" [drivers/remoteproc/qcom_q6v5.ko] undefined!
>> ERROR: modpost: "__traceiter_rproc_interrupt_event" [drivers/remoteproc/qcom_q6v5.ko] undefined!

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

2023-06-01 14:31:57

by kernel test robot

Subject: Re: [PATCH v4 2/2] remoteproc: qcom: Add remoteproc tracing

Hi Gokul,

kernel test robot noticed the following build errors:

[auto build test ERROR on remoteproc/rproc-next]
[also build test ERROR on linus/master v6.4-rc4 next-20230601]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Gokul-krishna-Krishnakumar/remoteproc-Introduce-traces-for-remoteproc-events/20230601-053050
base: git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux.git rproc-next
patch link: https://lore.kernel.org/r/bd949ac8225abb842630bd7f4a2d45334c58f17f.1685486994.git.quic_gokukris%40quicinc.com
patch subject: [PATCH v4 2/2] remoteproc: qcom: Add remoteproc tracing
config: csky-randconfig-r025-20230531 (https://download.01.org/0day-ci/archive/20230601/[email protected]/config)
compiler: csky-linux-gcc (GCC) 12.3.0
reproduce (this is a W=1 build):
mkdir -p ~/bin
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/intel-lab-lkp/linux/commit/8a5252420291719cda102eb8ca72295283540cd4
git remote add linux-review https://github.com/intel-lab-lkp/linux
git fetch --no-tags linux-review Gokul-krishna-Krishnakumar/remoteproc-Introduce-traces-for-remoteproc-events/20230601-053050
git checkout 8a5252420291719cda102eb8ca72295283540cd4
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=csky olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross W=1 O=build_dir ARCH=csky SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All errors (new ones prefixed by >>):

csky-linux-ld: drivers/remoteproc/remoteproc_core.o: in function `rproc_stop':
>> remoteproc_core.c:(.text+0x4c6): undefined reference to `__traceiter_rproc_stop_event'
>> csky-linux-ld: remoteproc_core.c:(.text+0x510): undefined reference to `__tracepoint_rproc_stop_event'
>> csky-linux-ld: remoteproc_core.c:(.text+0x518): undefined reference to `__traceiter_rproc_stop_event'
csky-linux-ld: drivers/remoteproc/remoteproc_core.o: in function `rproc_start':
>> remoteproc_core.c:(.text.unlikely+0x230): undefined reference to `__traceiter_rproc_load_event'
csky-linux-ld: drivers/remoteproc/remoteproc_core.o: in function `trace_rproc_start_event':
>> remoteproc_core.c:(.text.unlikely+0x30a): undefined reference to `__traceiter_rproc_start_event'
>> csky-linux-ld: remoteproc_core.c:(.text.unlikely+0x31c): undefined reference to `__tracepoint_rproc_load_event'
>> csky-linux-ld: remoteproc_core.c:(.text.unlikely+0x324): undefined reference to `__traceiter_rproc_load_event'
>> csky-linux-ld: remoteproc_core.c:(.text.unlikely+0x354): undefined reference to `__tracepoint_rproc_start_event'
>> csky-linux-ld: remoteproc_core.c:(.text.unlikely+0x358): undefined reference to `__traceiter_rproc_start_event'

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

2023-06-07 15:38:30

by Mathieu Poirier

Subject: Re: [PATCH v4 2/2] remoteproc: qcom: Add remoteproc tracing

Hi Gokul,

On Wed, May 31, 2023 at 02:28:40PM -0700, Gokul krishna Krishnakumar wrote:
> This change attempts to add traces for start, stop, crash
> subsystem/subdevice events, these will serve as standard checkpoints in
> code and could help in debugging the failures in subdevice/subsystem
> prepare, start, stop and unprepare functions. This will also breakdown
> the time taken for each step in remoteproc bootup/shutdown process.
>
> Signed-off-by: Gokul krishna Krishnakumar <[email protected]>
> ---
> drivers/remoteproc/qcom_common.c | 37 ++++++++++++++++++++++++++++
> drivers/remoteproc/qcom_q6v5.c | 9 +++++++
> drivers/remoteproc/remoteproc_core.c | 8 ++++++
> 3 files changed, 54 insertions(+)
>
> diff --git a/drivers/remoteproc/qcom_common.c b/drivers/remoteproc/qcom_common.c
> index 020349f8979d..5bf6b8bc67c5 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/remoteproc_tracepoints.h>
>
> #include "remoteproc_internal.h"
> #include "qcom_common.h"
> @@ -186,6 +187,10 @@ static int glink_subdev_start(struct rproc_subdev *subdev)
>
> glink->edge = qcom_glink_smem_register(glink->dev, glink->node);
>
> + trace_rproc_subdev_event(dev_name(glink->dev->parent),
> + "glink", "start",
> + PTR_ERR_OR_ZERO(glink->edge));
> +
> return PTR_ERR_OR_ZERO(glink->edge);
> }
>
> @@ -194,6 +199,11 @@ static void glink_subdev_stop(struct rproc_subdev *subdev, bool crashed)
> struct qcom_rproc_glink *glink = to_glink_subdev(subdev);
>
> qcom_glink_smem_unregister(glink->edge);
> +
> + trace_rproc_subdev_event(dev_name(glink->dev->parent),
> + "glink", "stop",
> + PTR_ERR_OR_ZERO(glink->edge));
> +
> glink->edge = NULL;
> }
>
> @@ -201,6 +211,10 @@ static void glink_subdev_unprepare(struct rproc_subdev *subdev)
> {
> struct qcom_rproc_glink *glink = to_glink_subdev(subdev);
>
> + trace_rproc_subdev_event(dev_name(glink->dev->parent),
> + "glink", "unprepare",
> + PTR_ERR_OR_ZERO(glink->edge));
> +
> qcom_glink_ssr_notify(glink->ssr_name);
> }
>
> @@ -295,6 +309,10 @@ static int smd_subdev_start(struct rproc_subdev *subdev)
> {
> struct qcom_rproc_subdev *smd = to_smd_subdev(subdev);
>
> + trace_rproc_subdev_event(dev_name(smd->dev->parent),
> + "smd", "start",
> + PTR_ERR_OR_ZERO(smd->edge));
> +
> smd->edge = qcom_smd_register_edge(smd->dev, smd->node);
>
> return PTR_ERR_OR_ZERO(smd->edge);
> @@ -304,6 +322,10 @@ static void smd_subdev_stop(struct rproc_subdev *subdev, bool crashed)
> {
> struct qcom_rproc_subdev *smd = to_smd_subdev(subdev);
>
> + trace_rproc_subdev_event(dev_name(smd->dev->parent),
> + "smd", "stop",
> + PTR_ERR_OR_ZERO(smd->edge));
> +
> qcom_smd_unregister_edge(smd->edge);
> smd->edge = NULL;
> }
> @@ -420,6 +442,10 @@ static int ssr_notify_prepare(struct rproc_subdev *subdev)
> .crashed = false,
> };
>
> + trace_rproc_subdev_event(ssr->info->name,
> + "ssr", "QCOM_SSR_BEFORE_POWERUP",
> + data.crashed);
> +
> srcu_notifier_call_chain(&ssr->info->notifier_list,
> QCOM_SSR_BEFORE_POWERUP, &data);
> return 0;
> @@ -432,6 +458,9 @@ static int ssr_notify_start(struct rproc_subdev *subdev)
> .name = ssr->info->name,
> .crashed = false,
> };
> + trace_rproc_subdev_event(ssr->info->name,
> + "ssr", "QCOM_SSR_AFTER_POWERUP",
> + data.crashed);
>
> srcu_notifier_call_chain(&ssr->info->notifier_list,
> QCOM_SSR_AFTER_POWERUP, &data);
> @@ -446,6 +475,10 @@ static void ssr_notify_stop(struct rproc_subdev *subdev, bool crashed)
> .crashed = crashed,
> };
>
> + trace_rproc_subdev_event(ssr->info->name,
> + "ssr", "QCOM_SSR_BEFORE_SHUTDOWN",
> + data.crashed);
> +
> srcu_notifier_call_chain(&ssr->info->notifier_list,
> QCOM_SSR_BEFORE_SHUTDOWN, &data);
> }
> @@ -458,6 +491,10 @@ static void ssr_notify_unprepare(struct rproc_subdev *subdev)
> .crashed = false,
> };
>
> + trace_rproc_subdev_event(ssr->info->name,
> + "ssr", "QCOM_SSR_AFTER_SHUTDOWN",
> + data.crashed);
> +
> 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 497acfb33f8f..cf3f322be65e 100644
> --- a/drivers/remoteproc/qcom_q6v5.c
> +++ b/drivers/remoteproc/qcom_q6v5.c
> @@ -15,6 +15,7 @@
> #include <linux/soc/qcom/smem.h>
> #include <linux/soc/qcom/smem_state.h>
> #include <linux/remoteproc.h>
> +#include <trace/events/remoteproc_tracepoints.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_interrupt_event(q6v5->rproc, "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_interrupt_event(q6v5->rproc, "fatal", msg);
> rproc_report_crash(q6v5->rproc, RPROC_FATAL_ERROR);
>
> return IRQ_HANDLED;
> @@ -165,6 +168,8 @@ int qcom_q6v5_wait_for_start(struct qcom_q6v5 *q6v5, int timeout)
> if (!ret)
> disable_irq(q6v5->handover_irq);
>
> + trace_rproc_interrupt_event(q6v5->rproc, "Ready", !ret ? "-ETIMEDOUT":"done");
> +
> return !ret ? -ETIMEDOUT : 0;
> }
> EXPORT_SYMBOL_GPL(qcom_q6v5_wait_for_start);
> @@ -180,6 +185,8 @@ static irqreturn_t q6v5_handover_interrupt(int irq, void *data)
>
> q6v5->handover_issued = true;
>
> + trace_rproc_interrupt_event(q6v5->rproc, "handover", "Proxy votes removed");
> +
> return IRQ_HANDLED;
> }
>
> @@ -216,6 +223,8 @@ int qcom_q6v5_request_stop(struct qcom_q6v5 *q6v5, struct qcom_sysmon *sysmon)
>
> qcom_smem_state_update_bits(q6v5->state, BIT(q6v5->stop_bit), 0);
>
> + trace_rproc_interrupt_event(q6v5->rproc, "Stop", ret ? "done":"-EETIMEDOUT");
> +
> return ret == 0 ? -ETIMEDOUT : 0;
> }
> EXPORT_SYMBOL_GPL(qcom_q6v5_request_stop);
> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
> index 1cd4815a6dd1..d8dc91a15477 100644
> --- a/drivers/remoteproc/remoteproc_core.c
> +++ b/drivers/remoteproc/remoteproc_core.c
> @@ -38,6 +38,7 @@
> #include <linux/virtio_ring.h>
> #include <asm/byteorder.h>
> #include <linux/platform_device.h>
> +#include <trace/events/remoteproc_tracepoints.h>
>
> #include "remoteproc_internal.h"
>
> @@ -1270,6 +1271,7 @@ static int rproc_start(struct rproc *rproc, const struct firmware *fw)
>
> /* load the ELF segments to memory */
> ret = rproc_load_segments(rproc, fw);
> + trace_rproc_load_event(rproc, ret);

I would move this trace point to function rproc_load_segments() and rename it to
trace_rproc_load_segment_event().

> if (ret) {
> dev_err(dev, "Failed to load program segments: %d\n", ret);
> return ret;
> @@ -1305,6 +1307,7 @@ static int rproc_start(struct rproc *rproc, const struct firmware *fw)
>
> /* Start any subdevices for the remote processor */
> ret = rproc_start_subdevices(rproc);
> +

Spurious change

> if (ret) {
> dev_err(dev, "failed to probe subdevices for %s: %d\n",
> rproc->name, ret);
> @@ -1729,6 +1732,8 @@ static int rproc_stop(struct rproc *rproc, bool crashed)
> return ret;
> }
>
> + trace_rproc_stop_event(rproc, crashed ? "crash stop" : "stop");
> +
> rproc_unprepare_subdevices(rproc);
>
> rproc->state = RPROC_OFFLINE;
> @@ -1939,6 +1944,8 @@ int rproc_boot(struct rproc *rproc)
> dev_info(dev, "attaching to %s\n", rproc->name);
>
> ret = rproc_attach(rproc);
> + trace_rproc_start_event(rproc, ret);

Same here - please move the trace point to rproc_attach() and renamit it
trace_rproc_attach_event().

> +
> } else {
> dev_info(dev, "powering up %s\n", rproc->name);
>
> @@ -1950,6 +1957,7 @@ int rproc_boot(struct rproc *rproc)
> }
>
> ret = rproc_fw_boot(rproc, firmware_p);
> + trace_rproc_start_event(rproc, ret);
>

Same

Thanks,
Mathieu

> release_firmware(firmware_p);
> }
> --
> 2.40.1
>