On 2016/3/3 15:42, Joonsoo Kim wrote:
> 2016-03-03 10:25 GMT+09:00 Laura Abbott :
>> (cc -mm and Joonsoo Kim)
>>
>>
>> On 03/02/2016 05:52 AM, Hanjun Guo wrote:
>>> Hi,
>>>
>>> I came across a suspicious error for CMA stress test:
>>>
>>> Before the test, I got:
>>> -bash-4.3# cat /proc/meminfo | g
Hi Sedat,
On Thu, 3 Mar 2016 08:31:57 +0100 Sedat Dilek wrote:
>
> Does Linux next-20160303 has this patch?
> On a quick view I could not find it.
It is applied as part of the merge commit that merges the tip tree, so
there is not a separate commit for it.
--
Cheers,
Stephen Rothwell
On 03/03/2016 04:49, Parav Pandit wrote:
> Hi Tejun, Haggai,
>
> On Thu, Mar 3, 2016 at 1:28 AM, Parav Pandit wrote:
+ rpool->refcnt--;
+ if (rpool->refcnt == 0 && rpool->num_max_cnt ==
pool_info->table_len) {
>>>
>>> If the caller charges 2 and then uncharges 1 two times,
Hi Jens,
On Sunday, February 21, 2016 03:01:20 PM Markus Pargmann wrote:
> Hi Jens,
>
> This pull request contains 7 patches for 4.6.
any news on this pull request?
Best Regards,
Markus
>
> Patch 1 fixes some unnecessarily complicated code I introduced some versions
> ago for debugfs.
>
> P
2016-03-03 1:44 GMT+09:00 Vlastimil Babka :
> On 02/26/2016 01:58 AM, js1...@gmail.com wrote:
>>
>> From: Joonsoo Kim
>>
>> Success of CMA allocation largely depends on success of migration
>> and key factor of it is page reference count. Until now, page reference
>> is manipulated by direct calli
On 3/3/16, Linus Torvalds wrote:
> On Mar 2, 2016 23:14, "Sedat Dilek" wrote:
>>
>> Is that commit [1] Linux-4.5 material or affects other versions, too?
>
> Hmm. I guess this affects anything with userfaultfd.
>
OK, Linux v4.4.y LTS has userfaultfd - is affected.
Just anorganizational question
Hi everyone,
This patchset enhances page migration functionality to handle thp migration
for various page migration's callers:
- mbind(2)
- move_pages(2)
- migrate_pages(2)
- cgroup/cpuset migration
- memory hotremove
- soft offline
The main benefit is that we can avoid unnecessary thp spli
This patch makes it possible to support thp migration gradually. If you fail
to allocate a destination page as a thp, you just split the source thp as we
do now, and then enter the normal page migration. If you succeed to allocate
destination thp, you enter thp migration. Subsequent patches actuall
2016-03-03 10:25 GMT+09:00 Laura Abbott :
> (cc -mm and Joonsoo Kim)
>
>
> On 03/02/2016 05:52 AM, Hanjun Guo wrote:
>>
>> Hi,
>>
>> I came across a suspicious error for CMA stress test:
>>
>> Before the test, I got:
>> -bash-4.3# cat /proc/meminfo | grep Cma
>> CmaTotal: 204800 kB
>> CmaFr
2016-03-03 1:58 GMT+09:00 Vlastimil Babka :
> On 02/26/2016 01:58 AM, js1...@gmail.com wrote:
>>
>> From: Joonsoo Kim
>>
>> CMA allocation should be guaranteed to succeed by definition, but,
>> unfortunately, it would be failed sometimes. It is hard to track down
>> the problem, because it is rela
During testing thp migration, I saw the BUG_ON triggered due to the race between
soft offline and unpoison (what I actually saw was "bad page" warning of freeing
page with PageActive set, then subsequent bug messages differ each time.)
I tried to solve similar problem a few times (see commit f4c18
If one of callers of page migration starts to handle thp, memory management code
start to see pmd migration entry, so we need to prepare for it before enabling.
This patch changes various code point which checks the status of given pmds in
order to prevent race between thp migration and the pmd-rel
This patch enables thp migration for move_pages(2).
Signed-off-by: Naoya Horiguchi
---
mm/migrate.c | 24 +---
1 file changed, 21 insertions(+), 3 deletions(-)
diff --git v4.5-rc5-mmotm-2016-02-24-16-18/mm/migrate.c
v4.5-rc5-mmotm-2016-02-24-16-18_patched/mm/migrate.c
index
This patch enables thp migration for mbind(2) and migrate_pages(2).
Signed-off-by: Naoya Horiguchi
---
mm/mempolicy.c | 94 --
1 file changed, 72 insertions(+), 22 deletions(-)
diff --git v4.5-rc5-mmotm-2016-02-24-16-18/mm/mempolicy.c
v4.
This patch enables thp migration for memory hotremove. Stub definition of
prep_transhuge_page() is added for CONFIG_TRANSPARENT_HUGEPAGE=n.
Signed-off-by: Naoya Horiguchi
---
include/linux/huge_mm.h | 3 +++
mm/memory_hotplug.c | 8
mm/page_isolation.c | 8
3 files chan
This patch prepares thp migration's core code. These code will be open when
unmap_and_move() stops unconditionally splitting thp and get_new_page() starts
to allocate destination thps.
Signed-off-by: Naoya Horiguchi
---
arch/x86/include/asm/pgtable.h| 11 ++
arch/x86/include/asm/pgtable_
This patch enables thp migration for soft offline.
Signed-off-by: Naoya Horiguchi
---
mm/memory-failure.c | 31 ---
1 file changed, 12 insertions(+), 19 deletions(-)
diff --git v4.5-rc5-mmotm-2016-02-24-16-18/mm/memory-failure.c
v4.5-rc5-mmotm-2016-02-24-16-18_patch
Soft dirty bit is designed to keep tracked over page migration, so this patch
makes it done for thp migration too.
This patch changes the bit for _PAGE_SWP_SOFT_DIRTY bit, because it's necessary
for thp migration (i.e. both of _PAGE_PSE and _PAGE_PRESENT is used to detect
pmd migration entry.) Whe
Introduces CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION to limit thp migration
functionality to x86_64, which should be safer at the first step.
Signed-off-by: Naoya Horiguchi
---
arch/x86/Kconfig| 4
include/linux/huge_mm.h | 14 ++
mm/Kconfig | 3 +++
3 files c
Introduce a separate check routine related to MPOL_MF_INVERT flag. This patch
just does cleanup, no behavioral change.
Signed-off-by: Naoya Horiguchi
---
mm/mempolicy.c | 16 +++-
1 file changed, 11 insertions(+), 5 deletions(-)
diff --git v4.5-rc5-mmotm-2016-02-24-16-18/mm/mempolic
Hi Wei,
[auto build test WARNING on thermal/next]
[also build test WARNING on v4.5-rc6 next-20160302]
[if your patch is applied to the wrong git tree, please drop us a note to help
improving the system]
url:
https://github.com/0day-ci/linux/commits/Wei-Ni/thermal-consistently-use-int-for
On Wed, 2 Mar 2016, Vikas Shivappa wrote:
> + if (cqm_enabled && mbm_enabled)
> + intel_cqm_events_group.attrs = intel_cmt_mbm_events_attr;
> + else if (!cqm_enabled && mbm_enabled)
> + intel_cqm_events_group.attrs = intel_mbm_events_attr;
> + else if (cqm_enable
On 03/03/2016 03:24 PM, Chanwoo Choi wrote:
> Hi Lu,
>
> On 2016년 03월 03일 15:37, Lu Baolu wrote:
>> GPIO resource could be retrieved through APCI as well.
>>
>> Signed-off-by: Lu Baolu
>> Reviewed-by: Felipe Balbi
>> ---
>> drivers/extcon/extcon-usb-gpio.c | 3 ++-
>> 1 file changed, 2 inserti
On 03/03/2016 03:24 PM, Chanwoo Choi wrote:
> Hell Lu,
>
> On 2016년 03월 03일 15:37, Lu Baolu wrote:
>> This is needed to handle the GPIO connected USB ID pin found on
>> Intel Baytrail devices.
>>
>> Signed-off-by: Lu Baolu
>> Reviewed-by: Felipe Balbi
>> ---
>> drivers/extcon/extcon-usb-gpio.c
On Wed, 2 Mar 2016, Paul E. McKenney wrote:
> > --- a/kernel/cpu.c
> > +++ b/kernel/cpu.c
> > @@ -762,6 +762,7 @@ void cpuhp_report_idle_dead(void)
> > BUG_ON(st->state != CPUHP_AP_OFFLINE);
> > st->state = CPUHP_AP_IDLE_DEAD;
> > complete(&st->done);
>
> Not to be repetitive or anythi
On 3/2/16, Stephen Rothwell wrote:
> Hi Josh,
>
> On Tue, 1 Mar 2016 15:54:51 -0600 Josh Poimboeuf
> wrote:
>>
>> Changing it to use the host compiler would probably be an easy fix, but
>> that would expose a harder bug related to endianness.
>
> Just by luck, my PowerPC host is little endian :-)
Hi Wei,
[auto build test WARNING on thermal/next]
[also build test WARNING on v4.5-rc6 next-20160302]
[if your patch is applied to the wrong git tree, please drop us a note to help
improving the system]
url:
https://github.com/0day-ci/linux/commits/Wei-Ni/thermal-consistently-use-int-for
Hi Lu,
On 2016년 03월 03일 15:37, Lu Baolu wrote:
> GPIO resource could be retrieved through APCI as well.
>
> Signed-off-by: Lu Baolu
> Reviewed-by: Felipe Balbi
> ---
> drivers/extcon/extcon-usb-gpio.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/extcon/ex
Hell Lu,
On 2016년 03월 03일 15:37, Lu Baolu wrote:
> This is needed to handle the GPIO connected USB ID pin found on
> Intel Baytrail devices.
>
> Signed-off-by: Lu Baolu
> Reviewed-by: Felipe Balbi
> ---
> drivers/extcon/extcon-usb-gpio.c | 7 +++
> 1 file changed, 7 insertions(+)
>
> diff
On 03/01/2016 09:32 PM, yga...@codeaurora.org wrote:
>> On 02/28/2016 09:32 PM, Yaniv Gardi wrote:
>>> Sometimes due to hw issues it takes some time to the
>>> host controller register to update. In order to verify the register
>>> has updated, a polling is done until its value is set.
>>>
>>> In a
On 03/01/2016 09:25 PM, yga...@codeaurora.org wrote:
>> On 02/28/2016 09:32 PM, Yaniv Gardi wrote:
>>> A race condition exists between request requeueing and scsi layer
>>> error handling:
>>> When UFS driver queuecommand returns a busy status for a request,
>>> it will be requeued and its tag will
From: Yunhui Cui
For Micron family ,The status register write enable/disable bit,
provides hardware data protection for the device.
When the enable/disable bit is set to 1, the status register
nonvolatile bits become read-only and the WRITE STATUS REGISTER
operation will not execute.
Signed-off-
We can get the read/write/erase opcode from the spi nor framework
directly. This patch uses the information stored in the SPI-NOR to
remove the hardcode in the fsl_qspi_init_lut().
Signed-off-by: Yunhui Cui
Signed-off-by: Yunhui Cui
---
drivers/mtd/spi-nor/fsl-quadspi.c | 40 ---
The commit 17e8351a7739 consistently use int for temperature,
however it missed a few in trip temperature and thermal_core.
In current codes, the trip->temperature used "unsigned long"
and zone->temperature used"int", if the temperature is negative
value, it will get wrong result when compare temp
On 3/2/16, Linus Torvalds wrote:
> On Wed, Mar 2, 2016 at 6:55 AM, Andrea Arcangeli
> wrote:
>>
>> Running page faults that late in the exit path with signal disabled
>> was frankly unexpected.
>
> I agree that it's less than wonderful.
>
>>Apparently it's not just
>> PF_EXITING that prev
There are some read modes for flash, such as NORMAL, FAST,
QUAD, DDR QUAD. These modes will use the identical lut table base
So rename SEQID_QUAD_READ to SEQID_READ.
Signed-off-by: Yunhui Cui
Signed-off-by: Yunhui Cui
---
drivers/mtd/spi-nor/fsl-quadspi.c | 8
1 file changed, 4 inserti
From: Yunhui Cui
The qspi driver add generic fast-read mode for different
flash venders. There are some different board flash work on
different mode, such fast-read, quad-mode.
Signed-off-by: Yunhui Cui
---
drivers/mtd/spi-nor/fsl-quadspi.c | 21 -
1 file changed, 16 insert
From: Li Zhang
Uptream has supported page parallel initialisation for X86 and the
boot time is improved greately. Some tests have been done for Power.
Here is the result I have done with different memory size.
* 4GB memory:
boot time is as the following:
with patch vs without patch: 10
From: Li Zhang
Parallel initialisation has been enabled for X86,
boot time is improved greatly.
On Power8, for small memory, it is improved greatly.
Here is the result from my test on Power8 platform:
For 4GB memory: 57% is improved
For 50GB memory: 22% is improve
Signed-off-by: Li Zhang
---
From: Li Zhang
This patch is based on Mel Gorman's old patch in the mailing list,
https://lkml.org/lkml/2015/5/5/280 which is dicussed but it is
fixed with a completion to wait for all memory initialised in
page_alloc_init_late(). It is to fix the oom problem on X86
with 24TB memory which allocat
Changelog:
1. Implement review comments by Michael
2. The previous version compared _NIP from the
wrong location to check for whether we
are going to a patched location
This applies on top of the patches posted by Michael
https://patchwork.ozlabs.org/patch/58
* Michael Ellerman [2016-03-03 15:26:53]:
> Move the logic to work out the kernel toc pointer into a header. This is
> a good cleanup, and also means we can use it elsewhere in future.
>
> Reviewed-by: Kamalesh Babulal
> Reviewed-by: Torsten Duwe
> Signed-off-by: Michael Ellerman
For the pat
Raydium I2C touch driver.
Signed-off-by: jeffrey.lin
---
drivers/input/touchscreen/Kconfig | 13 +
drivers/input/touchscreen/Makefile | 1 +
drivers/input/touchscreen/raydium_i2c_ts.c | 953 +
3 files changed, 967 insertions(+)
create mode 100644
This is needed to handle the GPIO connected USB ID pin found on
Intel Baytrail devices.
Signed-off-by: Lu Baolu
Reviewed-by: Felipe Balbi
---
drivers/extcon/extcon-usb-gpio.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-
GPIO resource could be retrieved through APCI as well.
Signed-off-by: Lu Baolu
Reviewed-by: Felipe Balbi
---
drivers/extcon/extcon-usb-gpio.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c
index af9c8b0..
In some Intel platforms, a single usb port is shared between USB host
and device controller. The shared port is under control of GPIO pins.
This patch adds the support for USB GPIO controlled port mux.
Signed-off-by: David Cohen
Signed-off-by: Lu Baolu
Reviewed-by: Heikki Krogerus
Reviewed-by:
Several Intel PCHs and SOCs have an internal mux that is used to
share one USB port between device controller and host controller.
The mux is handled through the Dual Role Configuration Register.
Signed-off-by: Heikki Krogerus
Signed-off-by: Lu Baolu
Signed-off-by: Wu Hao
Reviewed-by: Felipe Ba
Several Intel PCHs and SOCs have an internal mux that is used to
share one USB port between device controller and host controller.
A usb port mux could be abstracted as the following elements:
1) mux state: HOST or PERIPHERAL;
2) an extcon cable which triggers the change of mux state between
HO
Intel SOC chips are featured with USB dual role. The host role is
provided by Intel xHCI IP, and the gadget role is provided by IP
from designware. Tablet platform designs always share a single
port for both host and gadget controllers. There is a mux to
switch the port to the right controller acco
Some Intel platforms have an USB port mux controlled by GPIOs.
There's a single ACPI platform device that provides both USB ID
extcon device and a USB port mux device. This MFD driver will
split the 2 devices for their respective drivers.
Signed-off-by: Lu Baolu
Suggested-by: David Cohen
Reviewe
In some Intel platforms, a single usb port is shared between USB host
and device controllers. The shared port is under control of a switch
which is defined in the Intel vendor defined extended capability for
xHCI.
This patch adds the support to detect and create the platform device
for the port mu
Hi Laura,
Thanks a lot for taking a look!
On 2016/3/3 9:25, Laura Abbott wrote:
> (cc -mm and Joonsoo Kim)
>
>
[...]
>
> I played with this a bit and can see the same problem. The sanity
> check of CmaFree < CmaTotal generally triggers in
> __move_zone_freepage_state in unset_migratetype_isolate.
On 03/02/2016 08:58 PM, Felipe Balbi wrote:
> Hi,
>
> Mathias Nyman writes:
>> [ text/plain ]
>> On 26.01.2016 14:58, Lu Baolu wrote:
>>> In case of endpoint stall, software is able to detect the situation
>>> by reading DCCTRL.HIT or DCCTRL.HOT bits. DbC follows the normal USB
>>> framework to
Hi all,
Changes since 20160302:
The samsung-krzk tree gained a conflict against the omap tree.
The net-next tree gained conflicts against the net tree.
The tip tree still had its build failure so I applied a supplied patch.
The aio tree still had a build failure so I used the version from
In parse_options_usage(), check whether short option
is used and there is a option that has same name with
a specific option string (optstr) or not
before printing usage of options by print_option_help().
But using prefixcmp() has a problem when comparing long name
of options with a specific optio
From: Kuninori Morimoto
DMACHCLR clears each channels, but its channel number is based on
its SoC or IP. Current driver is using fixed 0x7fff (= for 14ch),
it is not good match for Gen3 or Gen2 Audio DMAC. This patch fixes it
Signed-off-by: Kuninori Morimoto
---
drivers/dma/sh/rcar-dmac.c | 2
On 02-03-16, 03:10, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki
>
> Move abstract code related to struct gov_tunables to a separate (new)
> file so it can be shared with (future) goverernors that won't share
> more code with "ondemand" and "conservative".
>
> No intentional functional cha
On 03/02/2016 08:58 PM, Mathias Nyman wrote:
> On 26.01.2016 14:58, Lu Baolu wrote:
>> In case of endpoint stall, software is able to detect the situation
>> by reading DCCTRL.HIT or DCCTRL.HOT bits. DbC follows the normal USB
>> framework to handle endpoint stall. When software detects endpoint
On 02-03-16, 03:12, Rafael J. Wysocki wrote:
> Index: linux-pm/drivers/cpufreq/cpufreq.c
> ===
> --- linux-pm.orig/drivers/cpufreq/cpufreq.c
> +++ linux-pm/drivers/cpufreq/cpufreq.c
> @@ -1772,6 +1772,39 @@ EXPORT_SYMBOL(cpufreq_unregi
Add a check to prevent memory scribbe when sending an ioctl with .insize
set so large that memory allocation argument overflows.
Signed-off-by: Gwendal Grignou
---
drivers/platform/chrome/cros_ec_dev.c | 12 +++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/platf
On Thu, Mar 3, 2016 at 12:19 AM, Diego Viola wrote:
> On Wed, Mar 2, 2016 at 2:14 AM, Guo-Fu Tseng wrote:
>> On Wed, 24 Feb 2016 23:58:56 -0500 (EST), David Miller wrote
>>> From: Diego Viola
>>> Date: Tue, 23 Feb 2016 12:04:04 -0300
>>>
>>> > The JMC260 network card fails to suspend/resume beca
On 02-03-16, 03:08, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki
>
> In addition to fields representing governor tunables, struct dbs_data
> contains some fields needed for the management of objects of that
> type. As it turns out, that part of struct dbs_data may be shared
> with (future)
On Wed, Mar 02, 2016 at 02:24:22PM -0700, Ross Zwisler wrote:
> On Mon, Feb 15, 2016 at 4:50 AM, Sudip Mukherjee
> wrote:
> > On Mon, Feb 15, 2016 at 04:20:45PM +0800, kernel test robot wrote:
> >> Greetings,
> >>
> >> 0day kernel testing robot got the below dmesg and the first bad commit is
> >>
On 02-03-16, 03:04, Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki
>
> Use the observation that cpufreq_update_util() is only called
> by the scheduler with rq->lock held, so the callers of
> cpufreq_set_update_util_data() can use synchronize_sched()
> instead of synchronize_rcu() to wait for
Dear Manager,
This is Vivian from Ju County Mingbo Industry & Trade Co.,Ltd in China.
Glad to hear that you're on the market for disposable PE gloves and aprons. We
mainly produced LDPE/HDPE/TPE gloves,Two fingers gloves, PE aprons for more
than eight years. Our products have been exported to m
acpi_cpufreq_attr contains at least one dynamically populated (removed)
attribute today, cpb. But the code isn't friendly enough for new
attributes to be populated in a similar way.
Make some changes to allow new attributes to be easily added to the
struct.
Signed-off-by: Viresh Kumar
---
Sriniv
FYI, we noticed the below changes on
https://github.com/0day-ci/linux
Waiman-Long/vfs-Use-per-cpu-list-for-SB-s-s_inodes-list/20160302-050444
commit e1ff3aaf031d89c13da1a772bc33b0f3b386629c ("vfs: Use per-cpu list for
superblock's inode list")
[1.258924] Freeing unused kern
hi,
my server has panic many times, how to fix it?
more info: https://bugzilla.kernel.org/show_bug.cgi?id=111721
sys:
KERNEL:
/usr/lib/debug/lib/modules/2.6.32-220.7.1.el6.3.0.1.1.x86_64/vmlinux
DUMPFILE: vmcore [PARTIAL DUMP]
CPUS: 24
DATE: Tue Feb 23 17:51:42
> Hi David,
> On Wed, Mar 02, 2016 at 01:00:21PM -0800, David Ahern wrote:
> > On 3/2/16 12:31 PM, Jeremiah Mahler wrote:
> > >>On Tue, Mar 01, 2016 at 08:11:54AM +, Dexuan Cui wrote:
> > >>>Hi, I got this line every 10 seconds with today's linux-next in a Hyper-V
> guest, even
> > >>>when I di
Now some cipher hardware engines prefer to handle bulk block by merging
requests to increase the block size and thus increase the hardware engine
processing speed.
This patch introduces request bulk mode to help the crypto hardware drivers
improve in efficiency, and chooses the suitable mode (SECT
If the crypto engine can support the bulk mode, that means the contiguous
requests from one block can be merged into one request to be handled by
crypto engine. If so, the crypto engine need the sector number of one request
to do merging action.
Signed-off-by: Baolin Wang
---
drivers/md/dm-crypt
In crypto engine framework, one request can combine other requests'
scatterlists into its sg table to improve engine efficency with
handling bulk block. Thus we need some helper functions to manage
dynamic scattertables.
This patch introduces 'sg_is_contiguous()' function to check if two
scatterli
Usually the dm-crypt subsystem will send encryption/descryption requests to
the crypto layer one block at a time, making each request 512 bytes long,
which is a much smaller size for hardware engine, that means the hardware
engine can not play its best performance.
Now some cipher hardware engines
Now some cipher hardware engines prefer to handle bulk block by merging requests
to increase the block size and thus increase the hardware engine processing
speed.
This patchset introduces request bulk mode to help the crypto hardware drivers
improve in efficiency.
Baolin Wang (4):
scatterlist
On Thu, Mar 3, 2016 at 9:55 AM, Ganapatrao Kulkarni
wrote:
> On Thu, Mar 3, 2016 at 9:04 AM, Rob Herring wrote:
>> On Wed, Mar 2, 2016 at 4:55 PM, David Daney wrote:
>>> From: David Daney
>>>
>>> Add device tree parsing for NUMA topology using device
>>> "numa-node-id" property in distance-map
The problem is Linux registers pm_power_off = efi_power_off
only if we are in hardware reduced mode. Actually, what we also
want is to do this when ACPI S5 is simply not supported.
That should handle both the HW reduced mode, and the HW-full
mode where the DSDT fails to supply an _S5 object.
This
On 03/01/2016 01:04 PM, Marc Zyngier wrote:
On 01/03/16 02:57, David Long wrote:
From: Sandeepa Prabhu
Kprobes needs simulation of instructions that cannot be stepped
from different memory location, e.g.: those instructions
that uses PC-relative addressing. In simulation, the behaviour
of the
On 03/02/2016 06:14 PM, Javier Martinez Canillas wrote:
Hello Krzysztof,
On 03/02/2016 09:21 PM, Krzysztof Kozlowski wrote:
On 03.03.2016 02:30, Javier Martinez Canillas wrote:
[snip]
+wdt->wdt_device.min_timeout = 1;
+wdt->wdt_device.max_timeout = s3c2410wdt_max_timeout(wdt->clock
Hi Davidlohr and Paul,
On 2016/3/3 9:37, Kefeng Wang wrote:
>
>
> On 2016/3/3 5:12, Paul E. McKenney wrote:
>> On Wed, Mar 02, 2016 at 11:55:43AM -0800, Davidlohr Bueso wrote:
>>> On Tue, 02 Feb 2016, Davidlohr Bueso wrote:
>>>
>>> I've just hit this issue myself and remembered this thread :)
>>
From: Torsten Duwe
Rather than open-coding -pg whereever we want to disable ftrace, use the
existing $(CC_FLAGS_FTRACE) variable.
This has the advantage that it will work in future when we use a
different set of flags to enable ftrace.
Signed-off-by: Torsten Duwe
Signed-off-by: Michael Ellerma
From: Torsten Duwe
Convert powerpc's arch_ftrace_update_code() from its own version to use
the generic default functionality (without stop_machine -- our
instructions are properly aligned and the replacements atomic).
With this we gain error checking and the much-needed function_trace_op
handlin
From: Torsten Duwe
Firstly we add logic to Kconfig to allow a user to choose if they want
mprofile-kernel. This has to be user-selectable because only some
current toolchains support it. If we enabled it unconditionally we would
prevent some users from building the kernel entirely.
Arguably it w
In order to support the new -mprofile-kernel ABI, we need to be able to
call from the module back to ftrace_caller() (in the kernel) without
using the module's r2. That is because the function in this module which
is calling ftrace_caller() may not have setup r2, if it doesn't
otherwise need it (ie
Move the logic to work out the kernel toc pointer into a header. This is
a good cleanup, and also means we can use it elsewhere in future.
Reviewed-by: Kamalesh Babulal
Reviewed-by: Torsten Duwe
Signed-off-by: Michael Ellerman
---
arch/powerpc/include/asm/sections.h | 12
arch/pow
From: Torsten Duwe
The gcc switch -mprofile-kernel defines a new ABI for calling _mcount()
very early in the function with minimal overhead.
Although mprofile-kernel has been available since GCC 3.4, there were
bugs which were only fixed recently. Currently it is known to work in
GCC 4.9, 5 and
When a module is loaded, calls out to the kernel go via a stub which is
generated at runtime. One of these stubs is used to call _mcount(),
which is the default target of tracing calls generated by the compiler
with -pg.
If dynamic ftrace is enabled (which it typically is), another stub is
used to
On Thu, 2016-03-03 at 12:09 +0800, Jianyu Zhan wrote:
> On Thu, Mar 3, 2016 at 11:32 AM, Joe Perches wrote:
> >
> > with your patch get_maintainer.pl and --git-blame gives:
> >
> > $ ./scripts/get_maintainer.pl ~/1.diff --git-blame
> > Thomas Gleixner
> > (commit_signer:20/19=100%,authored:7/1
On Thu, Mar 3, 2016 at 9:04 AM, Rob Herring wrote:
> On Wed, Mar 2, 2016 at 4:55 PM, David Daney wrote:
>> From: David Daney
>>
>> Add device tree parsing for NUMA topology using device
>> "numa-node-id" property in distance-map and cpu nodes.
>>
>> This is a complete rewrite of a previous patch
Currently we generate the module stub for ftrace_caller() at the bottom
of apply_relocate_add(). However apply_relocate_add() is potentially
called more than once per module, which means we will try to generate
the ftrace_caller() stub multiple times.
Although the current code deals with that corr
On Wed, Mar 02, 2016 at 11:33:37PM +0100, Wolfram Sang wrote:
> From: Wolfram Sang
>
> The clk API may return 0 on clk_get_rate, so we should check the result before
> using it as a divisor.
>
> Signed-off-by: Wolfram Sang
> ---
>
> Should go individually via subsystem tree.
>
> drivers/watc
On Wed, Mar 02, 2016 at 11:33:36PM +0100, Wolfram Sang wrote:
> From: Wolfram Sang
>
> The clk API may return 0 on clk_get_rate, so we should check the result before
> using it as a divisor.
>
> Signed-off-by: Wolfram Sang
Reviewed-by: Guenter Roeck
> ---
>
> Should go individually via subs
Hey Thomas,
So here is Christopher's cross-timestamp infrastructure
patchset which I wanted to send along for 4.6. These apply against
tip/timers/core.
Let me know if you have any objections.
thanks
-john
Cc: Prarit Bhargava
Cc: Richard Cochran
Cc: Thomas Gleixner
Cc: Ingo Molnar
Cc:
From: "Christopher S. Hall"
In the current timekeeping code there isn't any interface to
atomically capture the current relationship between the system counter
and system time. ktime_get_snapshot() returns this triple (counter,
monotonic raw, realtime) in the system_time_snapshot struct.
Cc: Pra
From: "Christopher S. Hall"
Another representative use case of time sync and the correlated
clocksource (in addition to PTP noted above) is PTP synchronized
audio.
In a streaming application, as an example, samples will be sent and/or
received by multiple devices with a presentation time that is
Hi Steven,
On 02/03/2016:10:44:40 AM, Steven Rostedt wrote:
> 3.14.61-rt64-rc1 stable review patch.
> If anyone has any objections, please let me know.
>
> --
>
> From: Yang Shi
>
> BUG: sleeping function called from invalid context at
> kernel/locking/rtmutex.c:917
> in_atomi
From: "Christopher S. Hall"
On modern Intel systems TSC is derived from the new Always Running Timer
(ART). ART can be captured simultaneous to the capture of
audio and network device clocks, allowing a correlation between timebases
to be constructed. Upon capture, the driver converts the capture
From: "Christopher S. Hall"
The code in ktime_get_snapshot() is a superset of the code in
ktime_get_raw_and_real() code. Further, ktime_get_raw_and_real() is
called only by the PPS code, pps_get_ts(). Consolidate the
pps_get_ts() code into a single function calling ktime_get_snapshot()
and elimin
From: "Christopher S. Hall"
Modern Intel systems supports cross timestamping of the network device
clock and Always Running Timer (ART) in hardware. This allows the
device time and system time to be precisely correlated. The timestamp
pair is returned through e1000e_phc_get_syncdevicetime() used
From: "Christopher S. Hall"
The timekeeping code does not currently provide a way to translate
externally provided clocksource cycles to system time. The cycle count
is always provided by the result clocksource read() method internal to
the timekeeping code. The added function timekeeping_cycles_
From: "Christopher S. Hall"
ACKNOWLEDGMENT: cross timestamp code was developed by Thomas Gleixner
. It has changed considerably and any mistakes are
mine.
The precision with which events on multiple networked systems can be
synchronized using, as an example, PTP (IEEE 1588, 802.1AS) is limited
b
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