VAL' if
it gets a negetive value, but the latter can't handle the situation
correctly.
Fixes: f7b88631a897 ("fs/libfs.c: fix simple_attr_write() on 32bit machines")
Signed-off-by: Yicong Yang
---
Change since v1:
- address the compile warning for non-64 bit platform
fs/libfs.c | 4 +++-
1
;)
Signed-off-by: Yicong Yang
---
Change since v1:
- address the compile warning for non-64 bit platform.
Change since v2:
Link:
https://lore.kernel.org/linux-fsdevel/1605000324-7428-1-git-send-email-yangyic...@hisilicon.com/
- make 'val' unsigned long long and mentioned in the commit
Link:
https://lo
VAL' if
it gets a negetive value, but the latter can't handle the situation
correctly.
Fixes: f7b88631a897 ("fs/libfs.c: fix simple_attr_write() on 32bit machines")
Signed-off-by: Yicong Yang
---
fs/libfs.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/libfs.c
Hi,
Thanks for reviewing this.
On 2020/11/11 3:18, Andrew Morton wrote:
> On Tue, 10 Nov 2020 17:25:24 +0800 Yicong Yang
> wrote:
>
>> The attr->set() receive a value of u64, but simple_strtoll() is used
>> for doing the conversion. It will lead to the error cast if u
On 2020/11/26 17:50, Christoph Hellwig wrote:
> On Thu, Nov 26, 2020 at 05:48:25PM +0800, Yicong Yang wrote:
>> Sorry for not describing the issues I met correctly in the commit message.
>> Actually we're using inline function vfs_stat() for getting the
>> attributes, wh
;)
Reported-by: Yang Shen
Signed-off-by: Yicong Yang
---
fs/stat.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/stat.c b/fs/stat.c
index dacecdd..7d690c6 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -147,6 +147,7 @@ int vfs_fstat(int fd, struct kstat *stat)
fdput(f);
Hi Christoph,
On 2020/11/26 15:18, Christoph Hellwig wrote:
> On Thu, Nov 26, 2020 at 03:15:48PM +0800, Yicong Yang wrote:
>> The public function vfs_stat() and vfs_fstatat() are
>> unexported after moving out of line in
>> commit 09f1bde4017e ("fs: move vfs_fstat
On 2020/11/26 17:15, Christoph Hellwig wrote:
> On Thu, Nov 26, 2020 at 05:08:26PM +0800, Yicong Yang wrote:
>>> And why would you want to use them in kernel module? Please explain
>>> that in the patch that exports them, and please send that patch in the
>>> sam
Previosly we use pci_probe_reset_function() to probe whehter a function
can be reset and use __pci_reset_function_locked() to perform a function
reset. These two functions have lots of common lines.
Factor the two functions and reduce the redundancy.
Signed-off-by: Yicong Yang
---
drivers/pci
.
Move the block_cfg_access to the pci_dev->priv_flags and use atomic
bit operations to avoid the race condition.
Signed-off-by: Yicong Yang
---
drivers/pci/access.c | 20 ++--
drivers/pci/pci.h| 11 +++
include/linux/pci.h | 1 -
3 files changed, 21 insertions(
+cc linux-pci as I forgot to
On 2020/9/7 19:16, Yicong Yang wrote:
> Previosly we use pci_probe_reset_function() to probe whehter a function
> can be reset and use __pci_reset_function_locked() to perform a function
> reset. These two functions have lots of common lines.
>
>
+cc linux-pci as I forgot.
On 2020/9/7 19:06, Yicong Yang wrote:
> Previously we use bit field for block_cfg_access and
> msi_enabled/msix_enabled, which is non-atomic and they may race
> each other as they share the same memory region. A race condition
> is met between driver
On 2020/9/18 16:25, Wang ShaoBo wrote:
> Make use of devm_platform_get_and_ioremap_resource() provided by
> driver core platform instead of duplicated analogue. dev_err() is
> removed because it has been done in devm_ioremap_resource().
>
> Signed-off-by: Wang ShaoBo
> ---
>
/libfs.c: fix simple_attr_write() on 32bit machines")
Signed-off-by: Yicong Yang
---
fs/libfs.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/libfs.c b/fs/libfs.c
index e0d42e9..803c439 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -975,7 +975,9 @@ ssize_t simple_attr
On 2020/5/7 11:32, sathyanarayanan.kuppusw...@linux.intel.com wrote:
> From: Kuppuswamy Sathyanarayanan
>
> If there are non-hotplug capable devices connected to a given
> port, then during the fatal error recovery(triggered by DPC or
> AER), after calling reset_link() function, we cannot rely on
Hi,
On 2020/5/27 9:31, Kuppuswamy, Sathyanarayanan wrote:
> Hi,
>
> On 5/21/20 7:56 PM, Yicong Yang wrote:
>>
>>
>> On 2020/5/22 3:31, Kuppuswamy, Sathyanarayanan wrote:
>>>
>>>
>>> On 5/21/20 3:58 AM, Yicong Yang wrote:
>
On 2020/5/27 12:04, Kuppuswamy, Sathyanarayanan wrote:
>
>
> On 5/26/20 8:50 PM, Yicong Yang wrote:
>> Hi,
>>
>>
>> On 2020/5/27 9:31, Kuppuswamy, Sathyanarayanan wrote:
>>> Hi,
>>>
>>> On 5/21/20 7:56 PM, Yicong Yang wrote:
>>
Hi all,
As it's a new tracing device for PCIe traffic, any comments about
the driver or the user interface is appreciated.
Thanks.
On 2020/6/13 17:32, Yicong Yang wrote:
> HiSilicon PCIe tune and trace device(PTT) is a PCIe Root Complex
> integrated Endpoint(RCiEP) device, pro
Hi Bjorn,
Thanks for the comments.
On 2020/7/15 5:10, Bjorn Helgaas wrote:
> [+cc Lorenzo]
>
> On Mon, Jul 13, 2020 at 03:10:19PM +0100, Shiju Jose wrote:
>> From: Yicong Yang
>>
>> The HiSilicon HIP PCIe controller is capable of handling errors
>> on
On 2020/7/17 5:31, Bjorn Helgaas wrote:
> On Thu, Jul 16, 2020 at 05:06:19PM +0800, Yicong Yang wrote:
>> On 2020/7/11 7:09, Bjorn Helgaas wrote:
>>> On Sat, Jun 13, 2020 at 05:32:13PM +0800, Yicong Yang wrote:
>>>> HiSilicon PCIe tune and trace device(PTT) is a PCI
Hi Bjorn,
Thanks for reviewing this. Some replies below.
Thanks,
Yicong
On 2020/7/11 7:09, Bjorn Helgaas wrote:
> On Sat, Jun 13, 2020 at 05:32:13PM +0800, Yicong Yang wrote:
>> HiSilicon PCIe tune and trace device(PTT) is a PCIe Root Complex
>> integrated Endpoint(RCiEP) de
On 2020/5/13 3:20, Jay Vosburgh wrote:
> sathyanarayanan.kuppusw...@linux.intel.com wrote:
>
>> From: Kuppuswamy Sathyanarayanan
>>
>> If there are non-hotplug capable devices connected to a given
>> port, then during the fatal error recovery(triggered by DPC or
>> AER), after calling
Hi Sathy,
one minor comments below.
On 2020/6/5 5:50, sathyanarayanan.kuppusw...@linux.intel.com wrote:
> From: Kuppuswamy Sathyanarayanan
>
> PCI_ERS_RESULT_NEED_RESET error status implies the device is
> requesting a slot reset and a notification about slot reset
> completion via
Hi Jay,
I've tested the patches on my board, and they work well.
Thanks,
Yicong
On 2020/6/25 2:52, Jay Vosburgh wrote:
> Jay Vosburgh wrote:
>
>> sathyanarayanan.kuppusw...@linux.intel.com wrote:
>>
>> From: Kuppuswamy Sathyanarayanan
>>> Fatal (DPC) error recovery is currently broken for
.
- The driver is intended to be put under drivers/hwtracing, where
we think best match the device's function.
Signed-off-by: Yicong Yang
---
Documentation/trace/hisi-ptt.rst | 272
drivers/hwtracing/Kconfig |2 +
drivers/hwtracing/hisilicon/Kconfig|8
On 2020/5/21 1:04, Kuppuswamy, Sathyanarayanan wrote:
>
>
> On 5/20/20 1:28 AM, Yicong Yang wrote:
>> On 2020/5/7 11:32, sathyanarayanan.kuppusw...@linux.intel.com wrote:
>>> From: Kuppuswamy Sathyanarayanan
>>>
>>>
>>> If there are non-ho
On 2020/5/22 3:31, Kuppuswamy, Sathyanarayanan wrote:
>
>
> On 5/21/20 3:58 AM, Yicong Yang wrote:
>> On 2020/5/21 1:04, Kuppuswamy, Sathyanarayanan wrote:
>>>
>>>
>>> On 5/20/20 1:28 AM, Yicong Yang wrote:
>>>> On 2020/5/7 11:32, sathya
On 2021/2/6 4:08, Bjorn Helgaas wrote:
> On Fri, Feb 05, 2021 at 10:28:32AM -0800, Guenter Roeck wrote:
>> On Fri, Feb 05, 2021 at 05:44:13PM +0800, Yicong Yang wrote:
>>> From: Junhao He
>>>
>>> Use subdir-ccflags-* instead of ccflags-* to inherit the
Hi Greg,
On 2021/2/5 17:53, Greg KH wrote:
> On Fri, Feb 05, 2021 at 05:44:12PM +0800, Yicong Yang wrote:
>> From: Junhao He
>>
>> Use subdir-ccflags-* instead of ccflags-* to inherit the debug
>> settings from Kconfig when traversing subdirectories.
>
> That sa
On 2021/2/8 18:47, Greg KH wrote:
> On Mon, Feb 08, 2021 at 06:44:52PM +0800, Yicong Yang wrote:
>> Hi Greg,
>>
>> On 2021/2/5 17:53, Greg KH wrote:
>>> On Fri, Feb 05, 2021 at 05:44:12PM +0800, Yicong Yang wrote:
>>>> From: Junhao He
>>>>
>
On 2021/2/5 0:10, Bjorn Helgaas wrote:
> [+cc Masahiro, Michal, linux-kbuild, linux-kernel]
>
> On Thu, Feb 04, 2021 at 07:30:15PM +0800, Yicong Yang wrote:
>> From: Junhao He
>>
>> Use subdir-ccflags-* instead of ccflags-* to inherit the debug
>> sett
From: Junhao He
Use subdir-ccflags-* instead of ccflags-* to inherit the debug
settings from Kconfig when traversing subdirectories.
Suggested-by: Bjorn Helgaas
Signed-off-by: Junhao He
Signed-off-by: Yicong Yang
---
drivers/hwmon/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion
From: Junhao He
Use subdir-ccflags-* instead of ccflags-* to inherit the debug
settings from Kconfig when traversing subdirectories.
Suggested-by: Bjorn Helgaas
Signed-off-by: Junhao He
Signed-off-by: Yicong Yang
---
drivers/pps/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion
From: Junhao He
Use subdir-ccflags-* instead of ccflags-* to inherit the debug
settings from Kconfig when traversing subdirectories.
Suggested-by: Bjorn Helgaas
Signed-off-by: Junhao He
Signed-off-by: Yicong Yang
---
drivers/base/Makefile | 2 +-
drivers/base/power/Makefile | 2 --
2
Few drivers use ccflags-* in their top directory to enable
-DDEBUG, but don't have config options to enable debug
in the sub-directories. They should want the subdirectories
inherit the debug flag from the top.
Use subdir-ccflags-* instead of ccflags-* to inherit the debug
settings from Kconfig
From: Junhao He
Use subdir-ccflags-* instead of ccflags-* to inherit the debug
settings from Kconfig when traversing subdirectories.
Suggested-by: Bjorn Helgaas
Signed-off-by: Junhao He
Signed-off-by: Yicong Yang
---
drivers/staging/comedi/Makefile | 2 +-
drivers/staging
Few drivers use ccflags-* in their top directory to enable
-DDEBUG, but don't have config options to enable debug
in the sub-directories, or they use per subdirectory
ccflags-* to have DEBUG with the same kconfig option.
Considering they intends to enable debug for all the files
under the
of ccflags-* to inherit
the debug settings from Kconfig when traversing subdirectories,
and it will avoid omittance of DEBUG define when debug messages
added in the subdirectories.
Suggested-by: Bjorn Helgaas
Signed-off-by: Junhao He
Signed-off-by: Yicong Yang
---
drivers/hwmon/Makefile | 2 +-
1
of ccflags-* to inherit
the debug settings from Kconfig when traversing subdirectories.
Suggested-by: Bjorn Helgaas
Signed-off-by: Junhao He
Signed-off-by: Yicong Yang
---
drivers/pps/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pps/Makefile b/drivers/pps
He
Signed-off-by: Yicong Yang
---
drivers/staging/comedi/Makefile | 2 +-
drivers/staging/comedi/drivers/Makefile | 1 -
drivers/staging/comedi/drivers/tests/Makefile | 2 --
drivers/staging/comedi/kcomedilib/Makefile| 2 --
4 files changed, 1 insertion(+), 6 deletions
in the subdirectory.
Suggested-by: Bjorn Helgaas
Signed-off-by: Junhao He
Signed-off-by: Yicong Yang
---
drivers/base/Makefile | 2 +-
drivers/base/power/Makefile | 2 --
2 files changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/base/Makefile b/drivers/base/Makefile
index 5e7bf96
On 2021/2/10 5:25, Bjorn Helgaas wrote:
> [+cc Masahiro, Michal, linux-kbuild, linux-kernel]
>
> On Thu, Feb 04, 2021 at 07:30:15PM +0800, Yicong Yang wrote:
>> From: Junhao He
>>
>> Use subdir-ccflags-* instead of ccflags-* to inherit the debug
>> sett
On 2021/2/9 23:06, Guenter Roeck wrote:
> On Tue, Feb 09, 2021 at 07:08:17PM +0800, Yicong Yang wrote:
>> From: Junhao He
>>
>> We use ccflags-$(CONFIG_HWMON_DEBUG_CHIP) for the debug
>> message in drivers/hwmon, but the DEBUG flag will not pass to
>> th
Some I2C controller drivers will only unregister the I2C
adapter in their .remove() callback, which can be done
by simply using a managed variant to add the I2C adapter.
So add the managed functions for adding the I2C adapter.
Reviewed-by: Andy Shevchenko
Signed-off-by: Yicong Yang
-by: Yicong Yang
---
drivers/i2c/busses/Kconfig| 10 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-hisi.c | 506 ++
3 files changed, 517 insertions(+)
create mode 100644 drivers/i2c/busses/i2c-hisi.c
diff --git a/drivers/i2c/busses/Kconfig b
From: Andy Shevchenko
Use generic i2c_freq_mode_string() helper to print chosen bus speed.
Signed-off-by: Andy Shevchenko
Signed-off-by: Yicong Yang
---
drivers/i2c/busses/i2c-designware-master.c | 20
1 file changed, 4 insertions(+), 16 deletions(-)
diff --git
Add maintainer for HiSilicon I2C driver.
Signed-off-by: Yicong Yang
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 8d23b0e..da2754a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8040,6 +8040,13 @@ F: drivers/crypto/hisilicon
in probe function.
Link:https://lore.kernel.org/linux-i2c/1615016946-55670-1-git-send-email-yangyic...@hisilicon.com/
Andy Shevchenko (1):
i2c: designware: Switch over to i2c_freq_mode_string()
Yicong Yang (4):
i2c: core: add managed function for adding i2c adapters
i2c: core: add api to provide
Some I2C drivers like Designware and HiSilicon will print the
bus frequency mode information, so add a public one that everyone
can make use of.
Reviewed-by: Andy Shevchenko
Signed-off-by: Yicong Yang
---
include/linux/i2c.h | 20
1 file changed, 20 insertions(+)
diff
-by: Dmitry Osipenko
Signed-off-by: Yicong Yang
---
drivers/i2c/busses/Kconfig| 10 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-hisi.c | 505 ++
3 files changed, 516 insertions(+)
create mode 100644 drivers/i2c/busses/i2c-hisi.c
diff --git
Some I2C drivers like Designware and HiSilicon will print the
bus frequency mode information, so add a public one that everyone
can make use of.
Tested-by: Jarkko Nikula
Reviewed-by: Jarkko Nikula
Reviewed-by: Andy Shevchenko
Signed-off-by: Yicong Yang
---
include/linux/i2c.h | 20
-off-by: Yicong Yang
---
drivers/i2c/i2c-core-base.c | 26 ++
include/linux/i2c.h | 1 +
2 files changed, 27 insertions(+)
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 63ebf72..de9402c 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b
From: Andy Shevchenko
Use generic i2c_freq_mode_string() helper to print chosen bus speed.
Acked-by: Jarkko Nikula
Signed-off-by: Andy Shevchenko
Signed-off-by: Yicong Yang
---
drivers/i2c/busses/i2c-designware-master.c | 20
1 file changed, 4 insertions(+), 16
Add maintainer for HiSilicon I2C driver.
Signed-off-by: Yicong Yang
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 8d23b0e..da2754a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8040,6 +8040,13 @@ F: drivers/crypto/hisilicon
function.
Link:https://lore.kernel.org/linux-i2c/1615016946-55670-1-git-send-email-yangyic...@hisilicon.com/
Andy Shevchenko (1):
i2c: designware: Switch over to i2c_freq_mode_string()
Yicong Yang (4):
i2c: core: add managed function for adding i2c adapters
i2c: core: add api to provide
On 2021/3/31 18:37, Andy Shevchenko wrote:
> On Tue, Mar 30, 2021 at 10:19:26PM +0800, Yicong Yang wrote:
>> From: Andy Shevchenko
>>
>> Use generic i2c_freq_mode_string() helper to print chosen bus speed.
>
> Since it will be a new version (based on Jarkko's comments)
On 2021/3/31 16:35, Jarkko Nikula wrote:
> Hi
>
> On 3/30/21 5:19 PM, Yicong Yang wrote:
>> Some I2C drivers like Designware and HiSilicon will print the
>> bus frequency mode information, so add a public one that everyone
>> can make use of.
>>
>> Revi
On 2021/4/7 4:02, Wolfram Sang wrote:
>
> Only super minor stuff. Thanks to all the contributors and reviewers!
>
>> +#define HZ_PER_KHZ 1000
>
> KHZ_PER_HZ?
that doesn't match what we want. we want the count of HZs per one KHZ.
>
>> +ret = devm_i2c_add_adapter(dev, adapter);
>> +if
On 2021/4/7 3:54, Wolfram Sang wrote:
>
>> diff --git a/include/linux/i2c.h b/include/linux/i2c.h
>> index 10bd0b0..7268180 100644
>> --- a/include/linux/i2c.h
>> +++ b/include/linux/i2c.h
>> @@ -47,6 +47,26 @@ typedef int (*i2c_slave_cb_t)(struct i2c_client *client,
>> #define
On 2021/4/7 16:32, Jarkko Nikula wrote:
> Hi
>
> On 3/31/21 4:36 PM, Yicong Yang wrote:
>> + ret = device_property_read_u64(dev, "clk_rate", >clk_rate_khz);
>> + if (ret) {
>> + dev_err(dev, "failed to get clock frequen
On 2021/4/7 18:08, Andy Shevchenko wrote:
> On Wed, Apr 07, 2021 at 04:29:29PM +0800, Yicong Yang wrote:
>> On 2021/4/7 3:54, Wolfram Sang wrote:
>>>
>>>> diff --git a/include/linux/i2c.h b/include/linux/i2c.h
>>>> index 10bd0b0..7268180 100644
>>
On 2021/4/6 21:49, Greg KH wrote:
> On Tue, Apr 06, 2021 at 08:45:50PM +0800, Yicong Yang wrote:
>> HiSilicon PCIe tune and trace device(PTT) is a PCIe Root Complex
>> integrated Endpoint(RCiEP) device, providing the capability
>> to dynamically monitor and tune
Add tune function for the HiSilicon Tune and Trace device. The interface
of tune is also exposed through debugfs.
Signed-off-by: Yicong Yang
---
drivers/hwtracing/hisilicon/hisi_ptt.c | 187 +
1 file changed, 187 insertions(+)
diff --git a/drivers/hwtracing
debugfs directory for each PTT device, and users can
operate the device through the files under its directory.
Signed-off-by: Yicong Yang
---
drivers/Makefile |1 +
drivers/hwtracing/Kconfig |2 +
drivers/hwtracing/hisilicon/Kconfig|8 +
drivers
Document the introduction and usage of HiSilicon PTT device driver.
Signed-off-by: Yicong Yang
---
Documentation/trace/hisi-ptt.rst | 316 +++
1 file changed, 316 insertions(+)
create mode 100644 Documentation/trace/hisi-ptt.rst
diff --git a/Documentation
space tools.
The usage is described in the document.
Yicong Yang (4):
hwtracing: Add trace function support for HiSilicon PCIe Tune and
Trace device
hwtracing: Add tune function support for HiSilicon PCIe Tune and Trace
device
docs: Add documentation for HiSilicon PTT device driver
Add maintainer for driver and documentation of HiSilicon PTT device.
Signed-off-by: Yicong Yang
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 8d23b0e..61b793b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8078,6 +8078,13 @@ W
On 2021/3/18 17:24, Michael Walle wrote:
> Add support to show the name and JEDEC identifier as well as to dump the
> SFDP table. Not all flashes list their SFDP table contents in their
> datasheet. So having that is useful. It might also be helpful in bug
> reports from users.
>
> The idea
On 2021/2/10 19:42, Daniel Thompson wrote:
> On Mon, Feb 08, 2021 at 09:09:20PM +0800, Yicong Yang wrote:
>> On 2021/2/8 18:47, Greg KH wrote:
>>> On Mon, Feb 08, 2021 at 06:44:52PM +0800, Yicong Yang wrote:
>>>> On 2021/2/5 17:53, Greg KH wrote:
>>
On 2021/3/8 19:32, Peter Zijlstra wrote:
> On Mon, Mar 08, 2021 at 05:24:56PM +0800, Yicong Yang wrote:
>> Fix a typo 'borken' to 'broken' in pr_err().
>
> It was not a typo..
>
got it already. terribly sorry to bother and please ignore this.
> .
>
Fix a typo 'borken' to 'broken' in pr_err().
Signed-off-by: Yicong Yang
---
kernel/sched/topology.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index 09d3504..c42e388 100644
--- a/kernel/sched/topology.c
+++ b/kernel
kay to go as is.
>
sorry for the late reply. we can have this series applied if possible,
or you may apply the changed patch below (please let me know if you
want the whole series updated).
I didn't realize this, sorry. our two users don't have this situation.
thanks Wolfram and Andy!
Yicong
On 2021/4/9 0:57, Bjorn Helgaas wrote:
> On Thu, Apr 08, 2021 at 09:22:52PM +0800, Yicong Yang wrote:
>> On 2021/4/8 2:55, Bjorn Helgaas wrote:
>>> On Tue, Apr 06, 2021 at 08:45:53PM +0800, Yicong Yang wrote:
>
>>>> +On Kunpeng 930 SoC, the PCIe root complex
e plain '1000' as a factor/divider because
> it then becomes obvious. I still find the define more confusing than
> helpful TBH. But I'll leave the final decision to Yicong Yang.
>
HZ_PER_KHZ macro are defined separately in other places of the kernel.
Andy suggested to have this defined and us
On 2021/4/15 2:06, Geert Uytterhoeven wrote:
> Hi Yicong,
>
> On Wed, Apr 14, 2021 at 11:24 AM Yicong Yang wrote:
>> On 2021/4/13 20:26, Geert Uytterhoeven wrote:
>>> The HiSilicon Kunpeng I2C controller is only present on HiSilicon
>>> Kunpeng SoCs, and i
On 2021/4/15 16:18, Yicong Yang wrote:
> On 2021/4/15 2:06, Geert Uytterhoeven wrote:
>> Hi Yicong,
>>
>> On Wed, Apr 14, 2021 at 11:24 AM Yicong Yang
>> wrote:
>>> On 2021/4/13 20:26, Geert Uytterhoeven wrote:
>>>> The HiSilicon Kunpeng I2C cont
On 2021/4/19 17:07, Daniel Thompson wrote:
> On Sat, Apr 17, 2021 at 06:17:10PM +0800, Yicong Yang wrote:
>> Document the introduction and usage of HiSilicon PTT device driver.
>>
>> Signed-off-by: Yicong Yang
>> ---
>> Docum
On 2021/4/19 19:17, Suzuki K Poulose wrote:
> On 17/04/2021 11:17, Yicong Yang wrote:
>> [RESEND with perf and coresight folks Cc'ed]
>>
>> HiSilicon PCIe tune and trace device (PTT) is a PCIe Root Complex
>> integrated Endpoint (RCiEP) device, providing the capabilit
On 2021/4/17 21:56, Alexander Shishkin wrote:
> Yicong Yang writes:
>
>> The reason for not using perf is because there is no current support
>> for uncore tracing in the perf facilities.
>
> Not unless you count
>
> $ perf list|grep -ic uncore
> 77
>
On 2021/4/13 20:26, Geert Uytterhoeven wrote:
> The HiSilicon Kunpeng I2C controller is only present on HiSilicon
> Kunpeng SoCs, and its driver relies on ACPI to probe for its presence.
> Hence add dependencies on ARCH_HISI and ACPI, to prevent asking the user
> about this driver when configuring
Add maintainer for HiSilicon I2C driver.
Signed-off-by: Yicong Yang
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 8d23b0e..da2754a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8040,6 +8040,13 @@ F: drivers/crypto/hisilicon
-by: Dmitry Osipenko
Signed-off-by: Yicong Yang
---
drivers/i2c/busses/Kconfig| 10 +
drivers/i2c/busses/Makefile | 1 +
drivers/i2c/busses/i2c-hisi.c | 504 ++
3 files changed, 515 insertions(+)
create mode 100644 drivers/i2c/busses/i2c-hisi.c
diff --git
From: Andy Shevchenko
Use generic i2c_freq_mode_string() helper to print chosen bus speed.
Acked-by: Jarkko Nikula
Signed-off-by: Andy Shevchenko
Signed-off-by: Yicong Yang
---
drivers/i2c/busses/i2c-designware-master.c | 20
1 file changed, 4 insertions(+), 16
-off-by: Yicong Yang
---
drivers/i2c/i2c-core-base.c | 26 ++
include/linux/i2c.h | 1 +
2 files changed, 27 insertions(+)
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 63ebf72..de9402c 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b
Some I2C drivers like Designware and HiSilicon will print the
bus frequency mode information, so add a public one that everyone
can make use of.
Tested-by: Jarkko Nikula
Reviewed-by: Jarkko Nikula
Reviewed-by: Andy Shevchenko
Signed-off-by: Yicong Yang
---
drivers/i2c/i2c-core-base.c | 21
over to i2c_freq_mode_string()
Yicong Yang (4):
i2c: core: add managed function for adding i2c adapters
i2c: core: add api to provide frequency mode strings
i2c: add support for HiSilicon I2C controller
MAINTAINERS: Add maintainer for HiSilicon I2C driver
MAINTAINERS
On 2021/4/8 2:55, Bjorn Helgaas wrote:
> Move important info in the subject earlier, e.g.,
>
> docs: Add HiSilicon PTT device documentation
>
> On Tue, Apr 06, 2021 at 08:45:53PM +0800, Yicong Yang wrote:
>> Document the introduction and usage of HiSilicon PTT device dri
On 2021/4/7 18:25, Greg KH wrote:
> On Wed, Apr 07, 2021 at 06:03:11PM +0800, Yicong Yang wrote:
>> On 2021/4/6 21:49, Greg KH wrote:
>>> On Tue, Apr 06, 2021 at 08:45:50PM +0800, Yicong Yang wrote:
>>>> HiSilicon PCIe tune and trace device(PTT) is a PCIe Root Co
debugfs directory for each PTT device, and users can
operate the device through the files under its directory.
Signed-off-by: Yicong Yang
---
drivers/Makefile |1 +
drivers/hwtracing/Kconfig |2 +
drivers/hwtracing/hisilicon/Kconfig| 11 +
drivers
Document the introduction and usage of HiSilicon PTT device driver.
Signed-off-by: Yicong Yang
---
Documentation/trace/hisi-ptt.rst | 326 +++
1 file changed, 326 insertions(+)
create mode 100644 Documentation/trace/hisi-ptt.rst
diff --git a/Documentation
Add maintainer for driver and documentation of HiSilicon PTT device.
Signed-off-by: Yicong Yang
---
MAINTAINERS | 7 +++
1 file changed, 7 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index 7fdc513..647f0bf 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8084,6 +8084,13 @@ W
Add tune function for the HiSilicon Tune and Trace device. The interface
of tune is also exposed through debugfs.
Signed-off-by: Yicong Yang
---
drivers/hwtracing/hisilicon/hisi_ptt.c | 187 +
1 file changed, 187 insertions(+)
diff --git a/drivers/hwtracing
+ character device like ETM and use perf tools for decoding it?
Any comments is welcomed.
[1]
https://lore.kernel.org/linux-pci/1617713154-35533-1-git-send-email-yangyic...@hisilicon.com/
Yicong Yang (4):
hwtracing: Add trace function support for HiSilicon PCIe Tune and
Trace device
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