Hi Alistair,
On Tue, 10 Sept 2024 at 12:21, Alistair Popple wrote:
>
> Now that DAX and all other reference counts to ZONE_DEVICE pages are
> managed normally there is no need for the special devmap PTE/PMD/PUD
> page table bits. So drop all references to these, freeing up a
> software defined pa
Hi Alex,
Could you take this patch please if there's no further comments?
Thanks,
Chunyan
On 23 March 2017 at 14:13, Chunyan Zhang wrote:
> This patch adds a description to the stm_ftrace device source, an
> interface for collecting Ftrace's function trace information v
This patch adds a description to the stm_ftrace device source, an
interface for collecting Ftrace's function trace information via
STM devices.
Signed-off-by: Chunyan Zhang
---
Documentation/trace/stm.txt | 13 -
1 file changed, 12 insertions(+), 1 deletion(-)
diff --
On 21 March 2017 at 15:33, Alexander Shishkin
wrote:
> On 21 March 2017 at 07:57, Chunyan Zhang wrote:
>> On 20 March 2017 at 19:09, Alexander Shishkin
>> wrote:
>>> Chunyan Zhang writes:
>>>
>>>> Hi Alex,
>>>>
>>>> On 20
On 20 March 2017 at 19:09, Alexander Shishkin
wrote:
> Chunyan Zhang writes:
>
>> Hi Alex,
>>
>> On 20 March 2017 at 16:49, Alexander Shishkin
>> wrote:
>>> Hi Chunyan,
>>>
>>> A couple of clarifications: iirc this applies to the fu
rt other ftrace payloads like trace_printk()s?
No plan so far, but I think I can consider to do that, it depends on
how many people think that are helpful.
What do you think?
Thanks,
Chunyan
>
> Thanks,
> --
> Alex
>
> On 20 March 2017 at 08:47, Chunyan Zhang wrote:
This patch adds a description of the stm_ftrace device source, an
interface for collecting Function trace information via STM devices.
Signed-off-by: Chunyan Zhang
---
Documentation/trace/stm.txt | 10 +-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/Documentation/trace
th a per-cpu
variable as it is done for tracers.
This patch simply adds another global variable to keep STM paths and the
processing in coresight_enable/disable() is updated to deal with STM
devices properly.
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
drivers/hwtracing/c
From: Alexander Shishkin
Some STM devices adjust software assigned master numbers depending on
the trace source and its runtime state and whatnot. This patch adds
a sysfs attribute to inform the trace-side software that master numbers
assigned to software sources will not match those in the STP s
rrent
mandatory definition for CoreSight components.
Signed-off-by: Mathieu Poirier
Acked-by: Rob Herring
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings/arm/coresight.txt | 28 ++
1 file changed, 28 insertions(+)
diff --git a/Documentation/devicetree/binding
in sysfs
and channels made available to userspace via configfs.
Signed-off-by: Pratik Patel
Signed-off-by: Mathieu Poirier
Reviewed-by: Michael Williams
Signed-off-by: Chunyan Zhang
---
.../ABI/testing/sysfs-bus-coresight-devices-stm| 53 ++
Documentation/trace/coresight.txt
This patchset adds support for the CoreSight STM IP block.
Changes from V4:
- Rebased the whole patch set onto [4] (v4.6-rc1).
- Made a few minor modifications according to the code changes since v4.5.
- Replaced the original 1/4 with a new patch the Alex provided.
- Another new patch 2/4 in t
ssage-
>> From: Chunyan Zhang [mailto:zhang.chun...@linaro.org]
>> Sent: 08 March 2016 06:34
>> To: mathieu.poir...@linaro.org; alexander.shish...@linux.intel.com
>> Cc: Mike Leach; Michael Williams; Al Grant; t...@ti.com;
>> nicolas.gu...@st.com;
>> p
On Fri, Mar 25, 2016 at 8:48 PM, Mathieu Poirier
wrote:
> On 7 March 2016 at 23:33, Chunyan Zhang wrote:
>> From: Pratik Patel
>>
>> This driver adds support for the STM CoreSight IP block, allowing any
>> system compoment (HW or SW) to log and aggregate mess
On Fri, Mar 25, 2016 at 8:51 PM, Mathieu Poirier
wrote:
> On 7 March 2016 at 23:33, Chunyan Zhang wrote:
>> This patchset adds support for the CoreSight STM IP block.
>>
>> In the fourth version, comments from various people have been
>> addressed. Representing config
rrent
mandatory definition for CoreSight components.
Signed-off-by: Mathieu Poirier
Acked-by: Rob Herring
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings/arm/coresight.txt | 28 ++
1 file changed, 28 insertions(+)
diff --git a/Documentation/devicetree/binding
in sysfs
and channels made available to userspace via configfs.
Signed-off-by: Pratik Patel
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
.../ABI/testing/sysfs-bus-coresight-devices-stm| 53 ++
Documentation/trace/coresight.txt | 37 +-
drivers/hwtracing
For some STM hardware (e.g. ARM CoreSight STM), the masterID associated
to a source is set at the hardware level and not user configurable.
Since the masterID information isn't available to SW, introducing
a new value of -1 to reflect this reality.
Signed-off-by: Chunyan Zhang
---
Document
27;t confuse them with
architecture where masterID management is required (where any
other value would be valid).
[1] https://lkml.org/lkml/2015/12/22/348
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
drivers/hwtracing/stm/core.c | 17 +++--
drivers/hwtracing/stm/pol
coresight_simple_func() has been moved to the header file.
- Calculate the channel number according to the channel memory space size.
Thanks,
Chunyan
[1] https://lkml.org/lkml/2016/2/4/652
[2] https://lkml.org/lkml/2016/2/12/397
[3] https://lkml.org/lkml/2015/12/22/348
Chunyan Zhang (1):
Docum
For some STM hardware (e.g. ARM CoreSight STM), the masterID associated
to a source is set at the hardware level and not user configurable.
Since the masterID information isn't available to SW, introducing
a new value of -1 to reflect this reality.
Signed-off-by: Chunyan Zhang
---
Document
in sysfs
and channels made available to userspace via configfs.
Signed-off-by: Pratik Patel
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
.../ABI/testing/sysfs-bus-coresight-devices-stm| 53 ++
Documentation/trace/coresight.txt | 37 +-
drivers/hwtracing
rrent
mandatory definition for CoreSight components.
Signed-off-by: Mathieu Poirier
Acked-by: Rob Herring
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings/arm/coresight.txt | 28 ++
1 file changed, 28 insertions(+)
diff --git a/Documentation/devicetree/binding
27;t confuse them with
architecture where masterID management is required (where any
other value would be valid).
[1] https://lkml.org/lkml/2015/12/22/348
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
drivers/hwtracing/stm/core.c | 18 --
drivers/hwtracing/stm/pol
ding to the channel memory space size.
Thanks,
Chunyan
[1] https://lkml.org/lkml/2016/2/4/652
[2] https://lkml.org/lkml/2016/2/12/397
Chunyan Zhang (1):
Documentations: Add explanations of the case for non-configurable
masters
Mathieu Poirier (2):
stm class: provision for statically a
On Fri, Feb 12, 2016 at 12:59 AM, Mathieu Poirier
wrote:
> On 6 February 2016 at 04:04, Chunyan Zhang wrote:
>> From: Pratik Patel
>>
>> This driver adds support for the STM CoreSight IP block, allowing any
>> system compoment (HW or SW) to log and aggregate mess
Hi Michael,
One question below need to be clarified.
On Fri, Feb 12, 2016 at 10:55 PM, Michael Williams
wrote:
> Mathieu Poirier [mailto:mathieu.poir...@linaro.org] wrote:
>> On 6 February 2016 at 04:04, Chunyan Zhang wrote:
>>> From: Pratik Patel
>>>
>>>
be the separator, thus
prohibiting dots from being used in policy names.
Suggested-by: Chunyan Zhang
Signed-off-by: Alexander Shishkin
---
drivers/hwtracing/stm/policy.c | 7 ---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/hwtracing/stm/policy.c b/drivers/hwtracing
348
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
drivers/hwtracing/stm/core.c | 18 --
drivers/hwtracing/stm/policy.c | 18 --
include/linux/stm.h| 8
3 files changed, 40 insertions(+), 4 deletions(-)
diff --git a/drivers/h
There is already an interface of set_options, but no get_options yet.
Before setting any options, one would may want to see the current
status of that option by means of get_options interface. This
interface has been used in CoreSight STM driver.
Signed-off-by: Chunyan Zhang
---
drivers
rrent
mandatory definition for CoreSight components.
Signed-off-by: Mathieu Poirier
Acked-by: Rob Herring
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings/arm/coresight.txt | 28 ++
1 file changed, 28 insertions(+)
diff --git a/Documentation/devicetree/binding
in sysfs
and channels made available to userspace via configfs.
Signed-off-by: Pratik Patel
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
.../ABI/testing/sysfs-bus-coresight-devices-stm| 53 ++
Documentation/trace/coresight.txt | 37 +-
drivers/hwtracing
For some STM hardware (e.g. ARM CoreSight STM), the masterID associated
to a source is set at the hardware level and not user configurable.
Since the masterID information isn't available to SW, introducing
a new value of -1 to reflect this reality.
Signed-off-by: Chunyan Zhang
---
Document
hkin (1):
stm class: Support devices with multiple instances
Chunyan Zhang (2):
stm class: Add ioctl get_options interface
Documentations: Add explanations of the case for non-configurable
masters
Mathieu Poirier (2):
stm class: provision for statically assigned masterIDs
coresight-st
On Fri, Feb 5, 2016 at 1:30 AM, Alexander Shishkin
wrote:
> Chunyan Zhang writes:
>
> I few comments below:
>
>> The node name of STM master management policy is a concatenation of an
>> STM device name to which this policy applies and following an arbitrary
>>
found in this STM device name.
Signed-off-by: Chunyan Zhang
---
drivers/hwtracing/stm/policy.c | 27 ---
1 file changed, 16 insertions(+), 11 deletions(-)
diff --git a/drivers/hwtracing/stm/policy.c b/drivers/hwtracing/stm/policy.c
index 11ab6d0..691686e 100644
--- a
For some STM hardware (e.g. ARM CoreSight STM), the masterID associated
to a source is set at the hardware level and not user configurable.
Since the masterID information isn't available to SW, introducing
a new value of -1 to reflect this reality.
Signed-off-by: Chunyan Zhang
---
Document
rrent
mandatory definition for CoreSight components.
Signed-off-by: Mathieu Poirier
Acked-by: Rob Herring
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings/arm/coresight.txt | 28 ++
1 file changed, 28 insertions(+)
diff --git a/Documentation/devicetree/binding
in sysfs
and channels made available to userspace via configfs.
Signed-off-by: Pratik Patel
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
.../ABI/testing/sysfs-bus-coresight-devices-stm| 53 ++
Documentation/trace/coresight.txt | 37 +-
drivers/hwtracing
348
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
drivers/hwtracing/stm/core.c | 18 --
drivers/hwtracing/stm/policy.c | 19 +--
include/linux/stm.h| 8
3 files changed, 41 insertions(+), 4 deletions(-)
diff --git a/drivers/h
There is already an interface of set_options, but no get_options yet.
Before setting any options, one would may want to see the current
status of that option by means of get_options interface. This
interface has been used in CoreSight STM driver.
Signed-off-by: Chunyan Zhang
---
drivers
found in this STM device name.
Signed-off-by: Chunyan Zhang
---
drivers/hwtracing/stm/policy.c | 27 ---
1 file changed, 16 insertions(+), 11 deletions(-)
diff --git a/drivers/hwtracing/stm/policy.c b/drivers/hwtracing/stm/policy.c
index 11ab6d0..691686e 100644
--- a
the kbuild test robot error for the time being. This
modification will be removed when merging the code in which the
coresight_simple_func() has been moved to the header file.
- Calculate the channel number according to the channel memory space size.
Thanks,
Chunyan
Chunyan Zhang (3):
stm
the kbuild test robot error for the time being. This
modification will be removed when merging the code in which the
coresight_simple_func() has been moved to the header file.
Thanks,
Chunyan
Chunyan Zhang (3):
stm class: Add ioctl get_options interface
stm class: adds a loop to extract
url:
> https://github.com/0day-ci/linux/commits/Chunyan-Zhang/Introduce-CoreSight-STM-support/20160201-160437
> base: https://git.kernel.org/pub/scm/linux/kernel/git/robh/linux for-next
> config: arm-allmodconfig (attached as .config)
> reproduce:
> wget
> https://gi
in sysfs
and channels made available to userspace via configfs.
Signed-off-by: Pratik Patel
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
.../ABI/testing/sysfs-bus-coresight-devices-stm| 53 ++
Documentation/trace/coresight.txt | 37 +-
drivers/hwtracing
rrent
mandatory definition for CoreSight components.
Signed-off-by: Mathieu Poirier
Acked-by: Rob Herring
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings/arm/coresight.txt | 28 ++
1 file changed, 28 insertions(+)
diff --git a/Documentation/devicetree/binding
348
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
drivers/hwtracing/stm/core.c | 18 --
drivers/hwtracing/stm/policy.c | 19 +--
include/linux/stm.h| 8
3 files changed, 41 insertions(+), 4 deletions(-)
diff --git a/drivers/h
For some STM hardware (e.g. ARM CoreSight STM), the masterID associated
to a source is set at the hardware level and not user configurable.
Since the masterID information isn't available to SW, introducing
a new value of -1 to reflect this reality.
Signed-off-by: Chunyan Zhang
---
Document
found in this STM device name.
Signed-off-by: Chunyan Zhang
---
drivers/hwtracing/stm/policy.c | 27 ---
1 file changed, 16 insertions(+), 11 deletions(-)
diff --git a/drivers/hwtracing/stm/policy.c b/drivers/hwtracing/stm/policy.c
index 11ab6d0..691686e 100644
--- a
There is already an interface of set_options, but no get_options yet.
Before setting any options, one would may want to see the current
status of that option by means of get_options interface. This
interface has been used in CoreSight STM driver.
Signed-off-by: Chunyan Zhang
---
drivers
This patchset adds support for CoreSight STM IP block. It also makes
a little modification to the generic STM framework to cover the
CoreSight STM requirements. Full description follows the changelog.
Thanks,
Chunyan
Chunyan Zhang (3):
stm class: Add ioctl get_options interface
stm class
There is already an interface of set_options, but no get_options yet.
Before setting any options, one would may want to see the current
status of that option by means of get_options interface. This
interface has been used in CoreSight STM driver.
Signed-off-by: Chunyan Zhang
---
drivers
found in this STM device name.
Signed-off-by: Chunyan Zhang
---
drivers/hwtracing/stm/policy.c | 27 ---
1 file changed, 16 insertions(+), 11 deletions(-)
diff --git a/drivers/hwtracing/stm/policy.c b/drivers/hwtracing/stm/policy.c
index 11ab6d0..691686e 100644
--- a
348
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
drivers/hwtracing/stm/core.c | 18 --
drivers/hwtracing/stm/policy.c | 19 +--
include/linux/stm.h| 8
3 files changed, 41 insertions(+), 4 deletions(-)
diff --git a/drivers/h
For some STM hardware (e.g. ARM CoreSight STM), the masterID associated
to a source is set at the hardware level and not user configurable.
Since the masterID information isn't available to SW, introducing
a new value of -1 to reflect this reality.
Signed-off-by: Chunyan Zhang
---
Document
rrent
mandatory definition for CoreSight components.
Signed-off-by: Mathieu Poirier
Acked-by: Rob Herring
Signed-off-by: Chunyan Zhang
---
.../devicetree/bindings/arm/coresight.txt | 28 ++
1 file changed, 28 insertions(+)
diff --git a/Documentation/devicetree/binding
in sysfs
and channels made available to userspace via configfs.
Signed-off-by: Pratik Patel
Signed-off-by: Mathieu Poirier
Signed-off-by: Chunyan Zhang
---
.../ABI/testing/sysfs-bus-coresight-devices-stm| 53 ++
Documentation/trace/coresight.txt | 37 +-
drivers/hwtracing
This patchset adds support for CoreSight STM IP block. It also makes
a little modification to the generic STM framework to cover the
CoreSight STM requirements. Full description follows the changelog.
Thanks,
Chunyan
Chunyan Zhang (3):
stm class: Add ioctl get_options interface
stm class
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