On Wed, Jan 06, 2021 at 08:23:56PM +0800, Mark Rutland wrote:
> On Wed, Jan 06, 2021 at 06:29:53PM +0800, ting...@codeaurora.org wrote:
> > Hi Will and Mark,
>
> Hi Tingwei,
>
> > In recent implementation of save/restore ARM debug registers in
> > EL2/EL3, we found it's necessary to know whether
On Tue, Nov 24, 2020 at 07:38:55PM +0800, Suzuki K Poulose wrote:
> On 11/24/20 12:41 AM, Tingwei Zhang wrote:
> >On Mon, Nov 23, 2020 at 05:39:43PM +0800, Suzuki K Poulose wrote:
> >>On 11/23/20 7:58 AM, Tingwei Zhang wrote:
> >>>Hi Suzuki,
> >>>
>
On Mon, Nov 23, 2020 at 05:39:43PM +0800, Suzuki K Poulose wrote:
> On 11/23/20 7:58 AM, Tingwei Zhang wrote:
> >Hi Suzuki,
> >
> >On Fri, Nov 20, 2020 at 12:45:42AM +0800, Suzuki K Poulose wrote:
> >>ETM v4.4 onwards adds support for system instruction access
>
Hi Suzuki,
On Fri, Nov 20, 2020 at 12:45:42AM +0800, Suzuki K Poulose wrote:
> ETM v4.4 onwards adds support for system instruction access
> to the ETM. Detect the support on an ETM and switch to using the
> mode when available.
>
> Cc: Mike Leach
> Reviewed-by: Mathieu Poirier
>
Hi Anshuman,
On Tue, Nov 10, 2020 at 08:45:05PM +0800, Anshuman Khandual wrote:
> Trace Buffer Extension (TRBE) implements a trace buffer per CPU which is
> accessible via the system registers. The TRBE supports different addressing
> modes including CPU virtual address and buffer modes including
Hi Anshuman,
On Tue, Nov 10, 2020 at 08:45:04PM +0800, Anshuman Khandual wrote:
> From: Suzuki K Poulose
>
> Add ETE as one of the supported device types we support
> with ETM4x driver. The devices are named following the
> existing convention as ete.
>
> ETE mandates that the trace resource
Hi Anshuman,
On Tue, Nov 10, 2020 at 08:44:58PM +0800, Anshuman Khandual wrote:
> This series enables future IP trace features Embedded Trace Extension (ETE)
> and Trace Buffer Extension (TRBE). This series depends on the ETM system
> register instruction support series [0] and the v8.4 Self
Only function traces can be exported to other destinations currently.
This patch exports event trace as well. Move trace export related
function to the beginning of file so other trace can call
trace_process_export() to export.
Signed-off-by: Tingwei Zhang
Reviewed-by: Steven Rostedt (VMware
We will support copying event trace to STM. Change
STM_SOURCE_FTRACE to depend on TRACING since we will
support multiple tracers.
Signed-off-by: Tingwei Zhang
Reviewed-by: Steven Rostedt (VMware)
Reviewed-by: Alexander Shishkin
---
drivers/hwtracing/stm/Kconfig | 2 +-
1 file changed, 1
Set flags for trace_export. Export function trace, event trace
and trace marker to stm.
Signed-off-by: Tingwei Zhang
Reviewed-by: Steven Rostedt (VMware)
Reviewed-by: Alexander Shishkin
---
drivers/hwtracing/stm/ftrace.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/hwtracing
To avoid mixup of packets from differnt ftrace packets simultaneously,
use different channel for packets from different CPU.
Signed-off-by: Tingwei Zhang
Reviewed-by: Steven Rostedt (VMware)
---
drivers/hwtracing/stm/ftrace.c | 5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff
are suggested by Steven Rostedt.
User separate flag to control function trace, event trace and trace mark.
Allocate channels according to num_possible_cpu() dynamically.
Move ftrace_exports routines up so all ftrace can use them.
Tingwei Zhang (6):
stm class: ftrace: change dependency to TRACING
More traces like event trace or trace marker will be supported.
Add flag for difference traces, so that they can be controlled
separately. Move current function trace to it's own flag
instead of global ftrace enable flag.
Signed-off-by: Tingwei Zhang
Reviewed-by: Steven Rostedt (VMware
Add the support to route trace_marker buffer to other destination
via trace_export.
Signed-off-by: Tingwei Zhang
Reviewed-by: Steven Rostedt (VMware)
Reviewed-by: Alexander Shishkin
---
include/linux/trace.h | 1 +
kernel/trace/trace.c | 9 +
2 files changed, 10 insertions(+)
diff
On Fri, Sep 18, 2020 at 08:45:52PM +0800, Alexander Shishkin wrote:
> Tingwei Zhang writes:
>
> > @@ -63,6 +65,7 @@ static int __init stm_ftrace_init(void)
> > {
> > int ret;
> >
> > + stm_ftrace.data.nr_chans = num_possible_cpus();
>
>
On Wed, Sep 23, 2020 at 05:42:08AM +0800, Mathieu Poirier wrote:
> On Tue, Sep 15, 2020 at 12:09:18PM -0600, Mathieu Poirier wrote:
> > On Tue, Sep 15, 2020 at 06:41:01PM +0800, Tingwei Zhang wrote:
> > > From: Kim Phillips
> > >
> > > Allow to build c
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Suggested-by: Suzuki K Poulose
Reviewed-by: Suzuki K Poulose
---
drivers/hwtracing/coresight/Kconfig | 5 +-
drivers/hwtracing/coresight/Makefile | 4 +-
...resight-etm4x.c => coresight-etm4x-core.c} |
: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Reviewed-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/Kconfig | 5 -
drivers/hwtracing
.
This patch corrects the link removal code.
Fixes: 73274abb6557 ("coresight: cti: Add in sysfs links to other coresight
devices")
Reported-by: Tingwei Zhang
Signed-off-by: Mike Leach
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight-cti.c | 9 ++---
1 file
on boot
- move cti_remove_conn_xrefs to cti_remove since all sysfs links
have gone when system calls device_release.
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by Mike Leach
---
drivers/hwtracing/coresight/Kconfig | 5 -
drivers/hwtracing/coresight/Makefile
Add static cti_assoc_ops to coresight core driver. Let cti
driver register the add_assoc and remove_assoc call back.
Avoid coresight core driver to depend on cti driver.
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reported-by: kernel test robot
Reviewed-by: Mathieu Poirier
---
drivers
coresight device is enabled.
Signed-off-by: Mike Leach
Signed-off-by: Tingwei Zhang
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight.c | 11 ---
include/linux/coresight.h | 1 +
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers
Allow to build coresight-catu as modules, for ease of development.
- Kconfig becomes a tristate, to allow =m
- add catu_remove functions, for module unload
- add a MODULE_DEVICE_TABLE for autoloading on boot
Signed-off-by: Tingwei Zhang
Reviewed-by: Mike Leach
Reviewed-by: Suzuki K Poulose
-off-by: Tingwei Zhang
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight.c | 17 ++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight.c
b/drivers/hwtracing/coresight/coresight.c
index 711beb92166a
From: Mian Yousaf Kaukab
Make etr_catu_buf_ops static. Instead of directly accessing it in
etr_buf_ops[], add a function to let catu driver register the ops at
runtime. Break circular dependency between tmc-etr and catu drivers.
Signed-off-by: Mian Yousaf Kaukab
Signed-off-by: Tingwei Zhang
Yan
Cc: Alexander Shishkin
Cc: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Co-developed-by: Mian Yousaf Kaukab
Signed-off-by: Mian Yousaf Kaukab
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Reported-by: kernel test robot
Tested-by: Mike Leach
calls to the core init/exit
functions.
- add a MODULE_DEVICE_TABLE for autoloading on boot
Cc: Mathieu Poirier
Cc: Leo Yan
Cc: Alexander Shishkin
Cc: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Tested
ht: perf: Refactor function free_event_data()")
Signed-off-by: Tingwei Zhang
Reviewed-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight-etm-perf.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/driv
-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/Kconfig | 5 -
drivers/hwtracing/coresight/coresight-stm.c | 20 +++-
2 files changed, 23 insertions(+), 2
is called too late in the unload process resulting in a
crash.
This fixes both the issues.
Fixes: 177af8285b59 ("coresight: cti: Enable CTI associated with devices")
Reported-by: Tingwei Zhang
Signed-off-by: Mike Leach
Signed-off-by: Tingwei Zhang
Acked-by: Suzuki K Poulose
Reviewed-b
: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/Kconfig | 5 +++-
drivers/hwtracing
for autoloading on boot
Cc: Mathieu Poirier
Cc: Leo Yan
Cc: Alexander Shishkin
Cc: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Co-developed-by: Mian Yousaf Kaukab
Signed-off-by: Mian Yousaf Kaukab
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Signed-off-by: Tingwei Zhang
Reviewed-by: Mike Leach
---
drivers/hwtracing/coresight/Kconfig | 5 +-
drivers/hwtracing/coresight/Makefile | 5 +-
...resight-etm3x.c => coresight-etm3x-core.c} | 148 ++
3 files changed, 122 insertions(+), 36 deleti
Add coresight prefix to make it specific. It will be a export symbol.
Signed-off-by: Mian Yousaf Kaukab
Signed-off-by: Tingwei Zhang
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight-etb10.c | 2 +-
drivers/hwtracing/coresight/coresight
When coresight device is in an active session, driver module of
that device should not be removed. Use try_get_module() in
coresight_grab_device() to prevent module to be unloaded.
Use get_device()/put_device() to protect device data
in the middle of active session.
Signed-off-by: Tingwei Zhang
a MODULE_DEVICE_TABLE for autoloading on boot
Cc: Mathieu Poirier
Cc: Leo Yan
Cc: Alexander Shishkin
Cc: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed
From: Mian Yousaf Kaukab
Export symbols used among coresight modules.
Signed-off-by: Mian Yousaf Kaukab
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Suzuki K Poulose
---
drivers/hwtracing/coresight/coresight-etm-perf.c | 1 +
drivers/hwtracing/coresight/coresight-sysfs.c
: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight-etm-perf.h | 2 +-
drivers/hwtracing/coresight/coresight-priv.h | 2 +-
include/linux
Define a MODULE_DEVICE_TABLE for cpu_debug so module can
be auto loaded on boot.
Signed-off-by: Tingwei Zhang
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight-cpu-debug.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers
Provide name of cpu_debug module in Kconfig help section.
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/Kconfig | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/hwtracing/coresight
ule
Mian Yousaf Kaukab (2):
coresight: export global symbols
coresight: tmc-etr: add function to register catu ops
Mike Leach (2):
coresight: cti: Fix remove sysfs link error
coresight: cti: Fix bug clearing sysfs links on callback
Tingwei Zhang (12):
coresight: cpu_debug: add modul
Hi Alexander, Maxime, Aleandre,
May I know your comments for this patch set?
Thanks,
Tingwei
On Thu, Sep 03, 2020 at 08:17:00AM +0800, Tingwei Zhang wrote:
> Ftrace has ability to export trace packets to other destination.
> Currently, only function trace can be exported. This series e
On Tue, Sep 15, 2020 at 06:43:09AM +0800, Steven Rostedt wrote:
> On Wed, 2 Sep 2020 07:28:39 +0800
> Tingwei Zhang wrote:
>
> > Hi Alexander,
> >
> > May I know your comments for this patch set?
>
> I ran your patch set against get_maintainers.pl and it
On Sun, Sep 13, 2020 at 09:17:05PM +0800, Suzuki K Poulose wrote:
> On 08/21/2020 04:44 AM, Tingwei Zhang wrote:
> >From: Kim Phillips
> >
> >Allow to build coresight-etm3x as a module, for ease of development.
> >
> >- Kconfig becomes a tristate, to allow =m
>
On Sun, Sep 13, 2020 at 09:24:52PM +0800, Suzuki K Poulose wrote:
> On 08/21/2020 04:44 AM, Tingwei Zhang wrote:
> >From: Kim Phillips
> >
> >Allow to build coresight-funnel as module, for ease of development.
> >
> >- combine static and dynamic funnel init into s
On Fri, Sep 11, 2020 at 07:03:03AM +0800, Mathieu Poirier wrote:
> On Fri, Aug 21, 2020 at 11:44:42AM +0800, Tingwei Zhang wrote:
> > Allow to build coresight-cti as a module, for ease of development.
> >
> > - Kconfig becomes a tristate, to allow =m
> > - appen
On Fri, Sep 11, 2020 at 06:28:40AM +0800, Mathieu Poirier wrote:
> On Fri, Aug 21, 2020 at 11:44:29AM +0800, Tingwei Zhang wrote:
> > When coresight_build_path() fails on all the cpus, etm_setup_aux
> > calls etm_free_aux() to free allocated event_data.
> > WARN_
On Fri, Sep 11, 2020 at 06:19:18AM +0800, Mathieu Poirier wrote:
> On Fri, Aug 21, 2020 at 11:44:25AM +0800, Tingwei Zhang wrote:
> > Add coresight prefix to make it specific. It will be a export symbol.
> >
> > Signed-off-by: Mian Yousaf Kaukab
> > Signed-off-by:
On Thu, Sep 10, 2020 at 04:45:52AM +0800, ts...@codeaurora.org wrote:
> On 2020-09-09 09:15, Mathieu Poirier wrote:
> >On Wed, Sep 09, 2020 at 02:54:33AM +, Tingwei Zhang wrote:
> >>On Wed, Sep 09, 2020 at 01:53:51AM +0800, Mathieu Poirier wrote:
> >>> Hi
hese set merged in 5.10 Kernel.
> Thanks,
> Mathieu
>
> On Wed, 19 Aug 2020 at 23:47, Tingwei Zhang
> wrote:
> >
> > Allow to build coresight as modules. This gives developers the
> feasibility to
> > test their code without reboot.
> >
> > This se
function trace, event trace and trace mark.
Allocate channels according to num_possible_cpu() dynamically.
Move ftrace_exports routines up so all ftrace can use them.
Tingwei Zhang (6):
stm class: ftrace: change dependency to TRACING
tracing: add flag to control different traces
tracing: add
To avoid mixup of packets from differnt ftrace packets simultaneously,
use different channel for packets from different CPU.
Signed-off-by: Tingwei Zhang
Reviewed-by: Steven Rostedt (VMware)
---
drivers/hwtracing/stm/ftrace.c | 5 -
1 file changed, 4 insertions(+), 1 deletion(-)
diff
More traces like event trace or trace marker will be supported.
Add flag for difference traces, so that they can be controlled
separately. Move current function trace to it's own flag
instead of global ftrace enable flag.
Signed-off-by: Tingwei Zhang
Reviewed-by: Steven Rostedt (VMware
Set flags for trace_export. Export function trace, event trace
and trace marker to stm.
Signed-off-by: Tingwei Zhang
Reviewed-by: Steven Rostedt (VMware)
---
drivers/hwtracing/stm/ftrace.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/hwtracing/stm/ftrace.c b/drivers/hwtracing
We will support copying event trace to STM. Change
STM_SOURCE_FTRACE to depend on TRACING since we will
support multiple tracers.
Signed-off-by: Tingwei Zhang
Reviewed-by: Steven Rostedt (VMware)
---
drivers/hwtracing/stm/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff
Add the support to route trace_marker buffer to other destination
via trace_export.
Signed-off-by: Tingwei Zhang
Reviewed-by: Steven Rostedt (VMware)
---
include/linux/trace.h | 1 +
kernel/trace/trace.c | 9 +
2 files changed, 10 insertions(+)
diff --git a/include/linux/trace.h b
Only function traces can be exported to other destinations currently.
This patch exports event trace as well. Move trace export related
function to the beginning of file so other trace can call
trace_process_export() to export.
Signed-off-by: Tingwei Zhang
Reviewed-by: Steven Rostedt (VMware
Hi Alexander,
May I know your comments for this patch set?
Thanks,
Tingwei
On Thu, Aug 13, 2020 at 09:45:46AM +0800, Tingwei Zhang wrote:
> Ftrace has ability to export trace packets to other destination.
> Currently, only function trace can be exported. This series extends the
>
On Wed, Sep 02, 2020 at 01:05:49AM +0800, Mathieu Poirier wrote:
> On Tue, Sep 01, 2020 at 02:37:40PM +0800, Tingwei Zhang wrote:
> > Hi Mathieu,
> >
> > May I know your comments for this patch set?
>
> I do not maintain any of these files.
>
Sorry for my wron
Hi Mathieu,
May I know your comments for this patch set?
Thanks,
Tingwei
On Thu, Aug 13, 2020 at 09:45:46AM +0800, Tingwei Zhang wrote:
> Ftrace has ability to export trace packets to other destination.
> Currently, only function trace can be exported. This series extends the
> support
On Tue, Sep 01, 2020 at 04:28:19AM +0800, Mathieu Poirier wrote:
> On Fri, Aug 28, 2020 at 11:18:18AM +0800, Tingwei Zhang wrote:
> > On Fri, Aug 28, 2020 at 02:12:53AM +0800, Mathieu Poirier wrote:
> > > Hi Tingwei,
> > >
> > > On Tue, Aug 18, 2020 at 0
wered has been checked to be true with spinlock holded.
CTI is powered and can be programmed until spinlock is released.
Fixes: 6a0953ce7de9 ("coresight: cti: Add CPU idle pm notifer to CTI devices")
Signed-off-by: Tingwei Zhang
---
drivers/hwtracing/coresight/coresight-cti.c | 24 +
On Fri, Aug 28, 2020 at 02:12:53AM +0800, Mathieu Poirier wrote:
> Hi Tingwei,
>
> On Tue, Aug 18, 2020 at 07:10:57PM +0800, Tingwei Zhang wrote:
> > Deadlock as below is triggered by one CPU holds drvdata->spinlock
> > and calls cti_enable_hw(). Smp_call_fun
calls to the core init/exit
functions.
- add a MODULE_DEVICE_TABLE for autoloading on boot
Cc: Mathieu Poirier
Cc: Leo Yan
Cc: Alexander Shishkin
Cc: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Tested
From: Mian Yousaf Kaukab
Make etr_catu_buf_ops static. Instead of directly accessing it in
etr_buf_ops[], add a function to let catu driver register the ops at
runtime. Break circular dependency between tmc-etr and catu drivers.
Signed-off-by: Mian Yousaf Kaukab
Signed-off-by: Tingwei Zhang
Allow to build coresight-catu as modules, for ease of development.
- Kconfig becomes a tristate, to allow =m
- add catu_remove functions, for module unload
- add a MODULE_DEVICE_TABLE for autoloading on boot
Signed-off-by: Tingwei Zhang
Reviewed-by: Mike Leach
Reviewed-by: Suzuki K Poulose
coresight device is enabled.
Signed-off-by: Mike Leach
Signed-off-by: Tingwei Zhang
---
drivers/hwtracing/coresight/coresight.c | 11 ---
include/linux/coresight.h | 1 +
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight.c
b
- add a MODULE_DEVICE_TABLE for autoloading on boot
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by Mike Leach
---
drivers/hwtracing/coresight/Kconfig | 5 -
drivers/hwtracing/coresight/Makefile | 4 ++--
.../{coresight-cti.c => coresight-cti-core.c} |
-off-by: Tingwei Zhang
---
drivers/hwtracing/coresight/coresight.c | 17 ++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight.c
b/drivers/hwtracing/coresight/coresight.c
index d354fd57474e..6c9f6930b8b8 100644
--- a/drivers
is called too late in the unload process resulting in a
crash.
This fixes both the issues.
Fixes: 177af8285b59 ("coresight: cti: Enable CTI associated with devices")
Reported-by: Tingwei Zhang
Signed-off-by: Mike Leach
Signed-off-by: Tingwei Zhang
Acked-by: Suzuki K Poulose
---
drivers
Yan
Cc: Alexander Shishkin
Cc: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Co-developed-by: Mian Yousaf Kaukab
Signed-off-by: Mian Yousaf Kaukab
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Reported-by: kernel test robot
Tested-by: Mike Leach
.
This patch corrects the link removal code.
Fixes: 73274abb6557 ("coresight: cti: Add in sysfs links to other coresight
devices")
Reported-by: Tingwei Zhang
Signed-off-by: Mike Leach
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight-cti.c | 9 ++---
1 file
for autoloading on boot
Cc: Mathieu Poirier
Cc: Leo Yan
Cc: Alexander Shishkin
Cc: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Co-developed-by: Mian Yousaf Kaukab
Signed-off-by: Mian Yousaf Kaukab
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
a MODULE_DEVICE_TABLE for autoloading on boot
Cc: Mathieu Poirier
Cc: Leo Yan
Cc: Alexander Shishkin
Cc: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed
Add static cti_assoc_ops to coresight core driver. Let cti
driver register the add_assoc and remove_assoc call back.
Avoid coresight core driver to depend on cti driver.
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reported-by: kernel test robot
Reviewed-by: Mathieu Poirier
---
drivers
When coresight_build_path() fails on all the cpus, etm_setup_aux
calls etm_free_aux() to free allocated event_data.
WARN_ON(cpumask_empty(mask) will be triggered since cpu mask is empty.
Check event_data->snk_config is not NULL first to avoid this
warning.
Signed-off-by: Tingwei Zhang
Revie
: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Reviewed-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/Kconfig | 5 -
drivers/hwtracing
: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight-etm-perf.h | 2 +-
drivers/hwtracing/coresight/coresight-priv.h | 2 +-
include/linux
Add coresight prefix to make it specific. It will be a export symbol.
Signed-off-by: Mian Yousaf Kaukab
Signed-off-by: Tingwei Zhang
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight-etb10.c | 2 +-
drivers/hwtracing/coresight/coresight
From: Mian Yousaf Kaukab
Export symbols used among coresight modules.
Signed-off-by: Mian Yousaf Kaukab
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight-etm-perf.c | 1 +
drivers
a MODULE_DEVICE_TABLE for autoloading on boot
Cc: Mathieu Poirier
Cc: Leo Yan
Cc: Alexander Shishkin
Cc: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Reviewed-by: Mike Leach
---
drivers/hwtracing/coresight/Kconfig
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Suggested-by: Suzuki K Poulose
---
drivers/hwtracing/coresight/Kconfig | 5 +-
drivers/hwtracing/coresight/Makefile | 4 +-
...resight-etm4x.c => coresight-etm4x-core.c} | 84 ++-
3 files changed,
: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/Kconfig | 5 +++-
drivers/hwtracing
When coresight device is in an active session, driver module of
that device should not be removed. Use try_get_module() in
coresight_grab_device() to prevent module to be unloaded.
Use get_device()/put_device() to protect device data
in the middle of active session.
Signed-off-by: Tingwei Zhang
-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/Kconfig | 5 -
drivers/hwtracing/coresight/coresight-stm.c | 20 +++-
2 files changed, 23 insertions(+), 2
Define a MODULE_DEVICE_TABLE for cpu_debug so module can
be auto loaded on boot.
Signed-off-by: Tingwei Zhang
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight-cpu-debug.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers
n Yousaf Kaukab (2):
coresight: export global symbols
coresight: tmc-etr: add function to register catu ops
Mike Leach (2):
coresight: cti: Fix remove sysfs link error
coresight: cti: Fix bug clearing sysfs links on callback
Tingwei Zhang (12):
coresight: cpu_debug: add module name i
Provide name of cpu_debug module in Kconfig help section.
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/Kconfig | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/hwtracing/coresight
: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/Kconfig | 5 +++-
drivers/hwtracing
calls to the core init/exit
functions.
- add a MODULE_DEVICE_TABLE for autoloading on boot
Cc: Mathieu Poirier
Cc: Leo Yan
Cc: Alexander Shishkin
Cc: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Tested
Allow to build coresight-catu as modules, for ease of development.
- Kconfig becomes a tristate, to allow =m
- add catu_remove functions, for module unload
- add a MODULE_DEVICE_TABLE for autoloading on boot
Signed-off-by: Tingwei Zhang
Reviewed-by: Mike Leach
Reviewed-by: Suzuki K Poulose
-off-by: Tingwei Zhang
---
drivers/hwtracing/coresight/coresight.c | 17 ++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight.c
b/drivers/hwtracing/coresight/coresight.c
index d354fd57474e..6c9f6930b8b8 100644
--- a/drivers
Add static cti_assoc_ops to coresight core driver. Let cti
driver register the add_assoc and remove_assoc call back.
Avoid coresight core driver to depend on cti driver.
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/coresight
From: Mian Yousaf Kaukab
Make etr_catu_buf_ops static. Instead of directly accessing it in
etr_buf_ops[], add a function to let catu driver register the ops at
runtime. Break circular dependency between tmc-etr and catu drivers.
Signed-off-by: Mian Yousaf Kaukab
Signed-off-by: Tingwei Zhang
- add a MODULE_DEVICE_TABLE for autoloading on boot
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by Mike Leach
---
drivers/hwtracing/coresight/Kconfig | 5 -
drivers/hwtracing/coresight/Makefile | 4 ++--
.../{coresight-cti.c => coresight-cti-core.c} |
: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Reviewed-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed-by: Mathieu Poirier
---
drivers/hwtracing/coresight/Kconfig | 5 -
drivers/hwtracing
for autoloading on boot
Cc: Mathieu Poirier
Cc: Leo Yan
Cc: Alexander Shishkin
Cc: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Co-developed-by: Mian Yousaf Kaukab
Signed-off-by: Mian Yousaf Kaukab
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
coresight device is enabled.
Signed-off-by: Mike Leach
Signed-off-by: Tingwei Zhang
---
drivers/hwtracing/coresight/coresight.c | 11 ---
include/linux/coresight.h | 1 +
2 files changed, 9 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight.c
b
is called too late in the unload process resulting in a
crash.
This fixes both the issues.
Fixes: 177af8285b59 ("coresight: cti: Enable CTI associated with devices")
Reported-by: Tingwei Zhang
Signed-off-by: Mike Leach
Signed-off-by: Tingwei Zhang
Acked-by: Suzuki K Poulose
---
drivers
a MODULE_DEVICE_TABLE for autoloading on boot
Cc: Mathieu Poirier
Cc: Leo Yan
Cc: Alexander Shishkin
Cc: Randy Dunlap
Cc: Suzuki K Poulose
Cc: Greg Kroah-Hartman
Cc: Russell King
Signed-off-by: Kim Phillips
Signed-off-by: Tingwei Zhang
Tested-by: Mike Leach
Reviewed-by: Suzuki K Poulose
Reviewed
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