From: Yu Chen
On Sat, 21 Sep 2019 15:51:38, Russell King - ARM Linux admin wrote:
> On Sat, Sep 21, 2019 at 09:02:49PM +0800, Yu Chen wrote:
> > From: Yu Chen
> >
> > memblock reserved regions are not reported via /proc/iomem on ARM, kexec's
> > user-space doe
From: Yu Chen
memblock reserved regions are not reported via /proc/iomem on ARM, kexec's
user-space doesn't know about memblock_reserve()d regions and thus
possible for kexec to overwrite with the new kernel or initrd.
[ 0.00] Booting Linux on physical CPU 0xf00
[ 0.000
On Wed, Aug 28, 2019 at 10:43:51AM +0200, Greg KH wrote:
> On Wed, Aug 28, 2019 at 12:12:39AM -0400, Sasha Levin wrote:
> > This is a note to let you know that I've just added the patch titled
> >
> > x86/pm: Introduce quirk framework to save/restore extra MSR registers
> > around suspend/res
On Sat, Jul 20, 2019 at 05:05:10PM +0200, Maximilian Luz wrote:
> Do not use the surfacepro3_button driver on newer Microsoft Surface
> models, only use it on the Surface Pro 3 and 4. Newer models (5th, 6th
> and possibly future generations) use the same device as the Surface Pro
> 4 to represent t
On Tue, Jul 02, 2019 at 03:33:20AM +0200, Maximilian Luz wrote:
> On 7/2/19 3:25 AM, Maximilian Luz wrote:
> > On 7/2/19 3:14 AM, Yu Chen wrote:
> > > On Tue, Jul 02, 2019 at 02:37:39AM +0200, Maximilian Luz wrote:
> > > > +/*
> > > > + * Surface Pro 4 and
Hi,
On Tue, Jul 02, 2019 at 02:37:39AM +0200, Maximilian Luz wrote:
> Do not use the surfacepro3_button driver on newer Microsoft Surface
> models, only use it on the Surface Pro 3 and 4. Newer models (5th, 6th
> and possibly future generations) use the same device as the Surface Pro
> 4 to represe
Fix code comment for cpumask_test_and_clear_cpu().
Signed-off-by: Yu Chen
---
include/linux/cpumask.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index 147bdec..73ca70d 100644
--- a/include/linux/cpumask.h
+++ b/include
This patch adds support for usb on Hikey960.
Cc: Chunfeng Yun
Cc: Wei Xu
Cc: Rob Herring
Cc: Mark Rutland
Cc: linux-arm-ker...@lists.infradead.org
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
v2:
* Remove device_type property.
* Add property "usb-role-switch".
This patch adds support for the poweron and shutdown of dwc3 core
on Hisilicon Soc Platform.
Cc: Felipe Balbi
Cc: Greg Kroah-Hartman
Cc: John Stultz
Signed-off-by: Yu Chen
---
drivers/usb/dwc3/dwc3-of-simple.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb
This patch adds binding documentation for supporting the hi3660 usb
phy on boards like the HiKey960.
Cc: Rob Herring
Cc: Mark Rutland
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
v1:
* Fix some format error as suggested by Rob.
v2:
* Change hi3660 usb PHY to hi3660 USB PHY
v3
On Fri, Mar 01, 2019 at 01:57:06PM +0100, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki
>
> While the cpuinfo.max_freq value doesn't really matter for
> intel_pstate in the active mode, in the passive mode it is used by
> governors as the maximum physical frequency of the CPU and the
> resul
On Fri, Mar 01, 2019 at 09:39:27AM -0800, Srinivas Pandruvada wrote:
> On Fri, 2019-03-01 at 13:43 +0100, Rafael J. Wysocki wrote:
> > Hi All,
> >
> > This is how I would fix the issue reported in BZ 200759 (see this
> > patch series
> > from Yu too: https://marc.info/?l=linux-pm&m=155137672924029
On Fri, Mar 01, 2019 at 10:34:46AM +0100, Rafael J. Wysocki wrote:
> On Thu, Feb 28, 2019 at 11:18 PM Rafael J. Wysocki wrote:
> >
> > On Thu, Feb 28, 2019 at 6:59 PM Chen Yu wrote:
> > >
> > > On some problematic platforms, the _PPC notifier is
> > > only delivered to one CPU, which might cause
On Thu, Feb 28, 2019 at 11:56:48PM +0100, Rafael J. Wysocki wrote:
> On Thu, Feb 28, 2019 at 6:59 PM Chen Yu wrote:
> >
> > On Dell Inc. XPS13 9333, the BIOS changes the value of
> > MSR_IA32_MISC_ENABLE_TURBO_DISABLE at runtime (e.g., when
> > the power source changes), the maximum frequency of t
SPLIT_BOUNDARY_DISABLE should be set for DesignWare USB3 DRD Core
of Hisilicon Kirin Soc when dwc3 core act as host.
Cc: Andy Shevchenko
Cc: Felipe Balbi
Cc: Greg Kroah-Hartman
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
drivers/usb/dwc3/core.c | 24
This patch adds binding documentation for supporting the hi3660 usb
phy on boards like the HiKey960.
Cc: Rob Herring
Cc: Mark Rutland
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
v1:
* Fix some format error as suggested by Rob.
v2:
* Change hi3660 usb PHY to hi3660 USB PHY
v3
uo Sun
Cc: Masahiro Yamada
Cc: Jiancheng Xue
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
v1:
* Remove unused code and add comment for time delay as suggested by
Kishon Vijay Abraham I.
v2:
* Fix license declaration.
* Remove redundant parens.
* Remove unused member variables
A GCTL soft reset should be executed when switch mode for dwc3 core
of Hisilicon Kirin Soc.
Cc: Andy Shevchenko
Cc: Felipe Balbi
Cc: Greg Kroah-Hartman
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
drivers/usb/dwc3/core.c | 19 +++
drivers/usb/dwc3/core.h | 1
: Heikki Krogerus
Suggested-by: Heikki Krogerus
Signed-off-by: Yu Chen
---
v2:
* Assign fwnode in dwc3_role_switch.
v3:
* Add default mode property for usb role switch.
* Add select USB_ROLE_SWITCH for USB_DWC3_DUAL_ROLE in Kconfig.
* Do usb_role_switch_register only if property "usb-role-s
This patch adds binding documentation to support usb hub and usb
data role switch of Hisilicon HiKey960 Board.
Cc: Sergei Shtylyov
Cc: Rob Herring
Cc: Mark Rutland
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
v1:
* Fix some format errors as suggested by Sergei.
* Modify gpio
roah-Hartman
Cc: John Stultz
Cc: Binghui Wang
Cc: Heikki Krogerus
Signed-off-by: Yu Chen
---
v1:
* Using gpiod API with the gpios.
* Removing registering usb role switch.
* Registering usb role switch notifier.
v2:
* Fix license declaration.
* Add configuration of gpio direction.
* Remove some log p
This patch adds support for the poweron and shutdown of dwc3 core
on Hisilicon Soc Platform.
---
drivers/usb/dwc3/dwc3-of-simple.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c
b/drivers/usb/dwc3/dwc3-of-simple.c
index 4c2771c5e727..0ed09
This patch adds notifier for drivers want to be informed of the usb role switch.
Cc: Greg Kroah-Hartman
Cc: Heikki Krogerus
Cc: Hans de Goede
Cc: Andy Shevchenko
Cc: John Stultz
Suggested-by: Heikki Krogerus
Signed-off-by: Yu Chen
---
drivers/usb/roles/class.c | 20
This patch adds support for usb on Hikey960.
Cc: Chunfeng Yun
Cc: Wei Xu
Cc: Rob Herring
Cc: Mark Rutland
Cc: linux-arm-ker...@lists.infradead.org
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
v2:
* Remove device_type property.
* Add property "usb-role-switch".
ig "match_existing_only".
Cc: Andy Shevchenko
Cc: Felipe Balbi
Cc: Greg Kroah-Hartman
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
drivers/usb/gadget/configfs.c | 32
1 file changed, 32 insertions(+)
diff --git a/drivers/usb/gadg
It needs more time for the device controller to clear the CmdAct of
DEPCMD on Hisilicon Kirin Soc.
Cc: Andy Shevchenko
Cc: Felipe Balbi
Cc: Greg Kroah-Hartman
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
drivers/usb/dwc3/gadget.c | 2 +-
1 file changed, 1 insertion(+), 1
/25/344
of Heikki Krogerus
Yu Chen (12):
dt-bindings: phy: Add support for HiSilicon's hi3660 USB PHY
dt-bindings: misc: Add bindings for HiSilicon usb hub and data role
switch functionality on HiKey960
usb: dwc3: dwc3-of-simple: Add support for dwc3 of Hisilicon Soc
Platform
On Thu, Feb 14, 2019 at 11:21:13AM +0100, Rafael J. Wysocki wrote:
> On Wed, Feb 13, 2019 at 5:44 PM Yu Chen wrote:
> >
> > Hi Rafael,
> > On Mon, Feb 11, 2019 at 11:41:26AM +0100, Rafael J. Wysocki wrote:
> > > On Sat, Feb 9, 2019 at 12:54 PM Chen Yu wrote:
>
On Thu, Feb 14, 2019 at 12:36:48PM +0530, Viresh Kumar wrote:
> On 14-02-19, 00:55, Yu Chen wrote:
> > Hi Viresh,
> > On Mon, Feb 11, 2019 at 04:03:07PM +0530, Viresh Kumar wrote:
> > > On 09-02-19, 20:02, Chen Yu wrote:
> > > > On Dell Inc. XPS13
uo Sun
Cc: Masahiro Yamada
Cc: Jiancheng Xue
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
v1:
* Remove unused code and add comment for time delay as suggested by
Kishon Vijay Abraham I.
v2:
* Fix license declaration.
* Remove redundant parens.
* Remove unused member variables
This patch adds notifier for drivers want to be informed of the usb role switch.
Cc: Greg Kroah-Hartman
Cc: Heikki Krogerus
Cc: Hans de Goede
Cc: Andy Shevchenko
Cc: John Stultz
Suggested-by: Heikki Krogerus
Signed-off-by: Yu Chen
---
drivers/usb/roles/class.c | 20
John Stultz
Cc: Binghui Wang
Cc: Heikki Krogerus
Signed-off-by: Yu Chen
---
v1:
* Using gpiod API with the gpios.
* Removing registering usb role switch.
* Registering usb role switch notifier.
v2:
* Fix license declaration.
* Add configuration of gpio direction.
* Remove some log p
ig "match_existing_only".
Cc: Andy Shevchenko
Cc: Felipe Balbi
Cc: Greg Kroah-Hartman
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
drivers/usb/gadget/configfs.c | 32
1 file changed, 32 insertions(+)
diff --git a/drivers/usb/gadg
This patch adds support for the poweron and shutdown of dwc3 core
on Hisilicon Soc Platform.
---
drivers/usb/dwc3/dwc3-of-simple.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c
b/drivers/usb/dwc3/dwc3-of-simple.c
index 4c2771c5e727..0ed09
This patch adds support for usb on Hikey960.
Cc: Wei Xu
Cc: Rob Herring
Cc: Mark Rutland
Cc: linux-arm-ker...@lists.infradead.org
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
v2:
* Remove device_type property.
* Add property "usb-role-switch".
---
---
arch/arm6
: Heikki Krogerus
Signed-off-by: Yu Chen
---
v2:
* Assign fwnode in dwc3_role_switch.
---
---
drivers/usb/dwc3/core.h | 2 ++
drivers/usb/dwc3/drd.c | 45 +
2 files changed, 47 insertions(+)
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
: Yu Chen
---
v2:
* Fix data type of reg from int to u32.
---
---
drivers/usb/dwc3/core.c | 43 +++
drivers/usb/dwc3/core.h | 7 +++
drivers/usb/dwc3/gadget.c | 2 +-
3 files changed, 51 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/dwc3
This patch adds binding documentation for supporting the hi3660 usb
phy on boards like the HiKey960.
Cc: Rob Herring
Cc: Mark Rutland
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
v1:
* Fix some format error as suggested by Rob.
v2:
* Change hi3660 usb PHY to hi3660 USB PHY
/lkml/2019/1/25/344
of Heikki Krogerus
---
Yu Chen (10):
dt-bindings: phy: Add support for HiSilicon's hi3660 USB PHY
dt-bindings: misc: Add bindings for HiSilicon usb hub and data role
switch functionality on HiKey960
usb: dwc3: dwc3-of-simple: Add support for dwc3 of Hisilico
This patch adds binding documentation to support usb hub and usb
data role switch of Hisilicon HiKey960 Board.
Cc: Sergei Shtylyov
Cc: Rob Herring
Cc: Mark Rutland
Cc: John Stultz
Cc: Binghui Wang
Signed-off-by: Yu Chen
---
v1:
* Fix some format errors as suggested by Sergei.
* Modify gpio
Hi Viresh,
On Mon, Feb 11, 2019 at 04:03:07PM +0530, Viresh Kumar wrote:
> On 09-02-19, 20:02, Chen Yu wrote:
> > On Dell Inc. XPS13 9333, the BIOS changes the value of
> > MSR_IA32_MISC_ENABLE_TURBO_DISABLE at runtime (e.g., when
> > the power source changes), the maximum frequency of the
> > CPU
Hi Rafael,
On Mon, Feb 11, 2019 at 11:41:26AM +0100, Rafael J. Wysocki wrote:
> On Sat, Feb 9, 2019 at 12:54 PM Chen Yu wrote:
> >
> > On Dell Inc. XPS13 9333, the BIOS changes the value of
> > MSR_IA32_MISC_ENABLE_TURBO_DISABLE at runtime (e.g., when
> > the power source changes), the maximum fre
Hi,
On Tue, Dec 11, 2018 at 04:37:54PM +0800, joeyli wrote:
> Hi Yu Chen,
>
> Thanks for your response!
>
> On Tue, Dec 11, 2018 at 11:12:21AM +0800, Yu Chen wrote:
> > Hi Joey,
> > On Mon, Dec 10, 2018 at 02:31:53PM +0800, joeyli wrote:
> > > Hi Chen Yu a
Hi Joey,
On Mon, Dec 10, 2018 at 02:31:53PM +0800, joeyli wrote:
> Hi Chen Yu and ACPI experts,
>
> On Sat, May 05, 2018 at 07:53:22PM +0800, Chen Yu wrote:
> > According to current implementation of acpi_pad driver,
> > it does not make sense to spawn any power saving threads
> > on the cpus whic
BCM43430 devices soldered onto the PCB (non-removable)
use an UART connection for bluetooth.
But also advertise btsdio support on their 3th sdio function.
Signed-off-by: Cho, Yu-Chen
---
drivers/bluetooth/btsdio.c | 12 +---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a
BCM43430 devices soldered onto the PCB (non-removable)
use an UART connection for bluetooth.
But also advertise btsdio support on their 3th sdio function.
Signed-off-by: Cho, Yu-Chen
---
drivers/bluetooth/btsdio.c | 12 +---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a
BCM43430 devices soldered onto the PCB (non-removable)
use an UART connection for bluetooth.
But also advertise btsdio support on their 3th sdio function.
Signed-off-by: Cho, Yu-Chen
---
drivers/bluetooth/btsdio.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers
On Wed, Sep 19, 2018 at 10:41:16AM +0200, Rafael J. Wysocki wrote:
> On Wed, Sep 19, 2018 at 9:31 AM Chen Yu wrote:
> >
> > From: Zhimin Gu
> >
> > Backport
> > Commit ef0f3ed5a4ac (x86/asm/power: Create stack frames
> > in hibernate_asm_64.S)
> > and
> > Commit 4ce827b4cc58 (x86/power/64: Fix hi
Hi,
On Fri, Sep 14, 2018 at 11:21:17AM +0200, Rafael J. Wysocki wrote:
> On Tuesday, September 11, 2018 7:20:46 PM CEST Chen Yu wrote:
> > From: Zhimin Gu
> >
> > Reduce the hibernation code duplication between x86-32 and x86-64
> > by extracting the common code into hibernate.c.
> >
> > No func
Hi Thomas,
On Thu, Sep 13, 2018 at 10:26:39AM +0200, Thomas Gleixner wrote:
> On Wed, 12 Sep 2018, Chen Yu wrote:
> > static bool hibernation_e820_mismatch(void *buf)
> > @@ -306,6 +307,7 @@ static bool hibernation_e820_mismatch(void *buf)
> > int arch_hibernation_header_save(void *addr, unsigned
On Wed, Sep 12, 2018 at 10:23:33PM +0800, Lee, Chun-Yi wrote:
> This patch adds a snapshot keys handler for using the key retention
> service api to create keys for snapshot image encryption and
> authentication.
>
> This handler uses TPM trusted key as the snapshot master key, and the
> encryptio
Hi Reinette,
Thanks for looking at this.
On Tue, Sep 04, 2018 at 03:36:01PM -0700, Reinette Chatre wrote:
> Hi Chen Yu,
>
> On 9/4/2018 1:24 PM, Reinette Chatre wrote:
> > On 9/4/2018 10:46 AM, Chen Yu wrote:
> >> On a platform with MB resource enabled, a divided-by-zero
> >> exception is triggere
On Thu, Aug 30, 2018 at 02:59:09PM +0200, Thomas Gleixner wrote:
> On Mon, 27 Aug 2018, Gu Zhimin wrote:
> > diff --git a/arch/x86/power/hibernate.c b/arch/x86/power/hibernate.c
> > new file mode 100644
> > index 000..6f91f7b
> > --- /dev/null
> > +++ b/arch/x86/power/hibernate.c
> > @@ -0,0 +1
Hi,
On Thu, Aug 30, 2018 at 02:45:26PM +0200, Thomas Gleixner wrote:
> On Mon, 27 Aug 2018, Gu Zhimin wrote:
> >
> > Fix this problem by changing pfn limit from max_low_pfn to max_pfn.
> > This issue should also exist on 64bits systems, if there are reserved
> > regions above 4GB.
>
> Should? Can
Hi Pavel, Joey, Oliver
Please let me describe the original requirement and my
understanding about hibernation encryption here, thus
help us sync on the same thread:
On Wed, Aug 08, 2018 at 07:50:36PM +0200, Pavel Machek wrote:
> Hi!
>
> > > > > User space doesn't need to involve. The EFI root key
On Thu, Jul 19, 2018 at 01:01:49PM +0200, Pavel Machek wrote:
> On Thu 2018-07-19 07:58:51, Yu Chen wrote:
> > Hi,
> > On Wed, Jul 18, 2018 at 10:22:35PM +0200, Pavel Machek wrote:
> > > On Thu 2018-07-19 00:38:06, Chen Yu wrote:
> > > > As security becomes mo
On Wed, Jul 18, 2018 at 11:48:19PM +0800, joeyli wrote:
> On Fri, Jul 13, 2018 at 03:34:25PM +0800, Yu Chen wrote:
> > Hi,
> > On Thu, Jul 12, 2018 at 06:10:37PM +0800, joeyli wrote:
> > > Hi Yu Chen,
> > >
> > > Sorry for my delay...
> > >
Hi,
On Thu, Jul 12, 2018 at 06:10:37PM +0800, joeyli wrote:
> Hi Yu Chen,
>
> Sorry for my delay...
>
> On Fri, Jul 06, 2018 at 11:28:56PM +0800, Yu Chen wrote:
> > Hi Joey Lee,
> > On Fri, Jun 29, 2018 at 08:59:43PM +0800, joeyli wrote:
> > > On Thu, Jun 2
Hi Joey Lee,
On Fri, Jun 29, 2018 at 08:59:43PM +0800, joeyli wrote:
> On Thu, Jun 28, 2018 at 10:52:07PM +0800, Yu Chen wrote:
> > Hi,
> > On Thu, Jun 28, 2018 at 10:28:56PM +0800, joeyli wrote:
> > > On Thu, Jun 28, 2018 at 09:50:17PM +0800, Yu Chen wrote:
> >
Sorry for late reply.
On Fri, Jul 06, 2018 at 12:16:37AM +0800, joeyli wrote:
> Hi Chen Yu,
>
> On Wed, Jun 20, 2018 at 05:39:37PM +0800, Chen Yu wrote:
> > Hi,
> > As security becomes more and more important, we add the in-kernel
> > encryption support for hibernation.
> >
> > This prototype is
Hi,
On Thu, Jun 28, 2018 at 10:28:56PM +0800, joeyli wrote:
> On Thu, Jun 28, 2018 at 09:50:17PM +0800, Yu Chen wrote:
> > Hi,
> > On Thu, Jun 28, 2018 at 09:07:20PM +0800, joeyli wrote:
> > > Hi Chen Yu,
> > >
> > > On Wed, Jun 20, 2018 at 05:40:32PM +0
Hi,
On Thu, Jun 28, 2018 at 09:07:20PM +0800, joeyli wrote:
> Hi Chen Yu,
>
> On Wed, Jun 20, 2018 at 05:40:32PM +0800, Chen Yu wrote:
> > Use the helper functions introduced previously to encrypt
> > the page data before they are submitted to the block device.
> > Besides, for the case of hiberna
Hi Eric,
On Wed, Jun 20, 2018 at 10:41:42AM -0700, Eric Biggers wrote:
> Hi Chen,
>
> On Wed, Jun 20, 2018 at 05:40:51PM +0800, Chen Yu wrote:
> > crypto_hibernate is a user-space utility to generate
> > 512bits AES key and pass it to the kernel via ioctl
> > for hibernation encryption.(We can als
Hi,
On Thu, Jun 21, 2018 at 09:14:43PM +0200, Pavel Machek wrote:
> On Thu 2018-06-21 14:08:40, Rafael J. Wysocki wrote:
> > On Thu, Jun 21, 2018 at 10:53 AM, Pavel Machek wrote:
> > > Hi!
> > >
> > >> As security becomes more and more important, we add the in-kernel
> > >> encryption support for
Hi Viresh,
thanks for the comment,
On Thu, Jun 07, 2018 at 10:15:43AM +0530, Viresh Kumar wrote:
> On 07-06-18, 11:17, Chen Yu wrote:
> > diff --git a/drivers/cpufreq/cpufreq_governor.c
> > b/drivers/cpufreq/cpufreq_governor.c
> > index 871bf9c..9792c80 100644
> > --- a/drivers/cpufreq/cpufreq_gov
On Sun, May 13, 2018 at 11:30:52AM +0200, Rafael J. Wysocki wrote:
> On Saturday, May 5, 2018 1:53:22 PM CEST Chen Yu wrote:
> > According to current implementation of acpi_pad driver,
> > it does not make sense to spawn any power saving threads
> > on the cpus which are already idle - it might bri
On Fri, May 04, 2018 at 04:08:42PM +0800, Chen Yu wrote:
> According to current implementation of acpi_pad driver,
> it does not make sense to spawn any power saving threads
> on the cpus which are already idle - it might bring
> unnecessary overhead on these idle cpus and causes power
> waste. So
On Mon, Apr 23, 2018 at 10:48:39AM +0200, Rafael J. Wysocki wrote:
> On Saturday, April 14, 2018 6:10:55 AM CEST Yu Chen wrote:
> > From: Chen Yu
> >
> > There's a use case during test to only print specific round of iterations
> > if --iterations is specifi
From: Chen Yu
There's a use case during test to only print specific round of iterations
if --iterations is specified, for example, with this patch applied:
turbostat -i 5 -r 4
will capture 4 samples with 5 seconds interval.
Cc: Len Brown
Cc: Rafael J Wysocki
Cc: Artem Bityutskiy
Cc: Doug Smy
From: Chen Yu
There's a use case during test to only print specific round of iterations
if --iterations is specified, for example, with this patch applied:
turbostat -i 5 -I 4
will capture 4 samples with 5 seconds interval.
Cc: Len Brown
Cc: Rafael J Wysocki
Cc: Artem Bityutskiy
Cc: Doug Smy
Hi Doug,
On Thu, Apr 12, 2018 at 12:18:44AM -0700, Doug Smythies wrote:
> On 2018.04.11 03:31 Yu Chen wrote:
>
> > From: Chen Yu
> >
> > There's a use case during test to only print specific round of loops
> > if --iterations is specified, for example, with th
Hi,
On Wed, Apr 11, 2018 at 02:02:02PM +0300, Artem Bityutskiy wrote:
> A couple of nitpicks.
>
> On Wed, 2018-04-11 at 18:30 +0800, Yu Chen wrote:
> > @@ -48,6 +48,7 @@ char *proc_stat = "/proc/stat";
> > FILE *outf;
> > int *fd_percpu;
> > str
From: Chen Yu
There's a use case during test to only print specific round of loops
if --iterations is specified, for example, with this patch applied:
turbostat -i 5 -t 4
will capture 4 samples with 5 seconds interval.
Cc: Len Brown
Cc: Rafael J Wysocki
Cc: Artem Bityutskiy
Cc: linux...@vger
On Wed, Apr 11, 2018 at 12:29:04PM +0300, Artem Bityutskiy wrote:
> On Tue, 2018-04-10 at 22:51 +0800, Yu Chen wrote:
> > + case 't':
> > + {
> > + int loops = strtod(optarg, NULL);
> > +
> >
From: Chen Yu
ThinkPad X1 Tablet(2016) is reported to have issues with
the Low Power S0 Idle _DSM interface and since this machine
model generally can do ACPI S3 just fine, and user would
like to use S3 as default sleep model, add a blacklist
entry to disable that interface for ThinkPad X1 Tablet
From: Chen Yu
There's a use case during test to only print specific round of loops
if --iterations is specified, for example, with this patch applied:
turbostat -i 5 -t 4
will capture 4 samples with 5 seconds interval.
Signed-off-by: Chen Yu
---
tools/power/x86/turbostat/turbostat.c | 26
Hi,
On Tue, Apr 10, 2018 at 07:02:22PM +0800, Bityutskiy, Artem wrote:
> On Tue, 2018-04-10 at 18:18 +0800, Yu Chen wrote:
> > @@ -5076,6 +5084,15 @@ void cmdline(int argc, char **argv)
> > print_version();
> >
On Tue, Apr 10, 2018 at 12:22:16PM +0200, Rafael J. Wysocki wrote:
> On Tue, Apr 10, 2018 at 12:18 PM, Yu Chen wrote:
> > From: Chen Yu
> >
> > There's a use case during test to only print specific round of loops
> > if --interval is specified, for
From: Chen Yu
There's a use case during test to only print specific round of loops
if --interval is specified, for example, with this patch applied:
turbostat -i 5 --max_loops 4
will capture 4 samples with 5 seconds interval.
Signed-off-by: Chen Yu
---
tools/power/x86/turbostat/turbostat.c |
From: Chen Yu
Sometimes it is too late for the APs to adjust their MTRRs
to the valid ones saved before suspend - currently this
action is performed by set_mtrr_state() after all the APs
have been brought up. In some cases the BIOS might scribble
the MTRR across suspend, as a result we might get
On Tue, Feb 06, 2018 at 03:04:17PM +0100, Lukas Wunner wrote:
> On Thu, Dec 14, 2017 at 12:02:42AM +0800, Yu Chen wrote:
> > On Wed, Dec 13, 2017 at 01:31:50AM +0100, Rafael J. Wysocki wrote:
> > > On Tuesday, October 31, 2017 10:58:50 AM CET Yu Chen wrote:
> [snip]
> >
.
Reported-by: Doug Smythies
Suggested-by: Srinivas Pandruvada
Signed-off-by: Yu Chen
---
drivers/cpufreq/intel_pstate.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 93a0e88bef76..89f637e8439c 100644
--- a/drivers/cpufreq
x27;t need to do _PPC change notification.
Reported-by: Doug Smythies
Suggested-by: Srinivas Pandruvada
Signed-off-by: Yu Chen
---
drivers/acpi/processor_perflib.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_
On Thu, Jan 25, 2018 at 02:44:59PM -0800, Srinivas Pandruvada wrote:
> On Thu, 2018-01-25 at 19:08 +0800, Yu Chen wrote:
>
> Thanks for debugging.
>
> > The following warning was triggered after resumed from S3 -
> > if all the nonboot CPUs were put offline before suspend
ct much because users seldom touch HWP registers.
Reported-by: Doug Smythies
Signed-off-by: Yu Chen
---
drivers/cpufreq/intel_pstate.c | 4
1 file changed, 4 insertions(+)
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 93a0e88bef76..b808f0127192 10064
sted-by: Rafael J. Wysocki
Cc: Len Brown
Cc: Rafael J. Wysocki
Cc: Rui Zhang
Signed-off-by: Yu Chen
---
arch/x86/include/asm/mtrr.h | 2 ++
arch/x86/kernel/cpu/mtrr/main.c | 29 ++---
arch/x86/kernel/smpboot.c | 4 ++--
3 files changed, 30 insertions(+), 5 d
From: Yu Chen
Unable to handle kernel paging request at virtual address dead0108
pgd = fff7a3179000
[dead0108] *pgd=230e0003, *pud=230e0003,
*pmd=
Internal error: Oops: 9644 [#1] PREEMPT SMP
Modules linked in:
CPU: 2 PID: 1 Comm: init
From: Yu Chen
Unable to handle kernel paging request at virtual address dead0108
pgd = fff7a3179000
[dead0108] *pgd=230e0003, *pud=230e0003,
*pmd=
Internal error: Oops: 9644 [#1] PREEMPT SMP
Modules linked in:
CPU: 2 PID: 1 Comm: init
On Wed, Dec 13, 2017 at 01:31:50AM +0100, Rafael J. Wysocki wrote:
> On Tuesday, October 31, 2017 10:58:50 AM CET Yu Chen wrote:
> > From: Chen Yu
> >
> > Sometimes it is too late for the APs to synchronize the MTRR
> > after all the APs have been brought up. In so
On Wed, Dec 13, 2017 at 10:52:56AM +0800, Dave Young wrote:
> Hi,
>
> Kexec reboot and kdump has broken on my laptop for long time with
> 4.15.0-rc1+ kernels. With the patch below an early panic been fixed:
> https://patchwork.kernel.org/patch/10084289/
>
> But still can not get a successful rebo
On Fri, Dec 1, 2017 at 12:41 AM, Jiri Kosina wrote:
> On Fri, 1 Dec 2017, Yu Chen wrote:
>
>> BTW, is nfs able to be included in this set? I also encountered a
>> freeze() failure due to nfs access during that stage recently.
>
> The freezer usage in NFS is magnitudes
On Thu, Nov 30, 2017 at 7:23 AM, Luis R. Rodriguez wrote:
> This is a followup from the original RFC which proposed to start
> to kill kthread freezing all together [0]. Instead of going straight
> out to the jugular for kthread freezing this series only addresses
> killing freezer calls on filesy
On Tue, Nov 14, 2017 at 03:02:32PM +1100, Dave Chinner wrote:
> On Tue, Nov 14, 2017 at 11:39:59AM +0800, Yu Chen wrote:
> > Hi Dave,
> > On Tue, Nov 14, 2017 at 09:52:16AM +1100, Dave Chinner wrote:
> > > On Mon, Nov 13, 2017 at 06:31:39PM +0800, Yu Chen wrote:
> >
Hi Dave,
On Tue, Nov 14, 2017 at 09:52:16AM +1100, Dave Chinner wrote:
> On Mon, Nov 13, 2017 at 06:31:39PM +0800, Yu Chen wrote:
> > Hi all,
> > Currently we are running hibernation stress test on a server
> > and unfortunately after 48 rounds of cycling, it fails at a
>
On Mon, Nov 13, 2017 at 09:14:14PM +0100, Luis R. Rodriguez wrote:
> On Mon, Nov 13, 2017 at 06:31:39PM +0800, Yu Chen wrote:
> > The xfs-buf/dm-1 should be freezed according to
> > commit 8018ec083c72 ("xfs: mark all internal workqueues
> > as freezable"), thu
On Tue, Nov 7, 2017 at 4:38 PM, Yu Chen wrote:
> Hi all,
> We are using 4.13.5-100.fc25.x86_64 and a panic was found during
> resume from hibernation, the backtrace is illustrated as below, would
> someone please take a look if this has already been fixed or is this issue
>
Hi all,
We are using 4.13.5-100.fc25.x86_64 and a panic was found during
resume from hibernation, the backtrace is illustrated as below, would
someone please take a look if this has already been fixed or is this issue still
in the upstream kernel? thanks!
[ 114.846213] PM: Using 3 thread(s) for de
From: Yu Chen
Check vdev->real_port 0 to avoid panic
[9.261347] []
xhci_free_virt_devices_depth_first+0x58/0x108
[9.261352] [] xhci_mem_cleanup+0x1bc/0x570
[9.261355] [] xhci_stop+0x140/0x1c8
[9.261365] [] usb_remove_hcd+0xfc/0x1d0
[9.261369] [] xhci_plat_remove+0x6c/0
From: Yu Chen
Check vdev->real_port 0 to avoid panic
[9.261347] []
xhci_free_virt_devices_depth_first+0x58/0x108
[9.261352] [] xhci_mem_cleanup+0x1bc/0x570
[9.261355] [] xhci_stop+0x140/0x1c8
[9.261365] [] usb_remove_hcd+0xfc/0x1d0
[9.261369] [] xhci_plat_remove+0x6c/0
From: Yu Chen
Check vdev->real_port 0 to avoid panic
[9.261347] []
xhci_free_virt_devices_depth_first+0x58/0x108
[9.261352] [] xhci_mem_cleanup+0x1bc/0x570
[9.261355] [] xhci_stop+0x140/0x1c8
[9.261365] [] usb_remove_hcd+0xfc/0x1d0
[9.261369] [] xhci_plat_remove+0x6c/0
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