On 01/04/2017 05:14 PM, Dave Hansen wrote:
On 01/04/2017 04:05 PM, Rob Gardner wrote:
What if two different small pages have different tags and khugepaged
comes along and tries to collapse them? Will the page be split if a
user attempts to set two different tags inside two different small-page
On 01/04/2017 04:05 PM, Rob Gardner wrote:
>> What if two different small pages have different tags and khugepaged
>> comes along and tries to collapse them? Will the page be split if a
>> user attempts to set two different tags inside two different small-page
>> portions of a single THP?
>
> The
On 01/04/2017 04:01 PM, Dave Hansen wrote:
On 01/04/2017 03:58 PM, Khalid Aziz wrote:
How does this all work with large pages?
It works with large pages the same way as normal sized pages. The TTE
for a large page also will have the mcd bit set in it and tags are set
and referenced the same way
On 01/04/2017 03:58 PM, Khalid Aziz wrote:
>> How does this all work with large pages?
>
> It works with large pages the same way as normal sized pages. The TTE
> for a large page also will have the mcd bit set in it and tags are set
> and referenced the same way.
But does the user setting the ta
On 01/04/2017 04:49 PM, Dave Hansen wrote:
On 01/04/2017 03:44 PM, Rob Gardner wrote:
On 01/04/2017 03:40 PM, Dave Hansen wrote:
On 01/04/2017 03:35 PM, Rob Gardner wrote:
Tags are not cleared at all when memory is freed, but rather, lazily
(and automatically) cleared when memory is allocated.
On 01/04/2017 03:49 PM, Dave Hansen wrote:
On 01/04/2017 03:44 PM, Rob Gardner wrote:
On 01/04/2017 03:40 PM, Dave Hansen wrote:
On 01/04/2017 03:35 PM, Rob Gardner wrote:
Tags are not cleared at all when memory is freed, but rather, lazily
(and automatically) cleared when memory is allocated.
On 01/04/2017 03:46 PM, Khalid Aziz wrote:
>> It would also be really nice to see a high-level breakdown explaining
>> what you had to modify, especially since this affects all of the system
>> calls that take a PROT_* argument. The sample code is nice, but it's no
>> substitute for writing it dow
On 01/04/2017 03:44 PM, Rob Gardner wrote:
> On 01/04/2017 03:40 PM, Dave Hansen wrote:
>> On 01/04/2017 03:35 PM, Rob Gardner wrote:
>>> Tags are not cleared at all when memory is freed, but rather, lazily
>>> (and automatically) cleared when memory is allocated.
>> What does "allocated" mean in t
On 01/04/2017 04:31 PM, Dave Hansen wrote:
One other high-level comment: It would be nice to see the
arch-independent and x86 portions broken out and explained in their own
right, even if they're small patches. It's a bit cruel to make us
scroll through a thousand lines of sparc code to see the
On 01/04/2017 04:27 PM, Dave Hansen wrote:
On 01/04/2017 02:46 PM, Khalid Aziz wrote:
This patch extends mprotect to enable ADI (TSTATE.mcde), enable/disable
MCD (Memory Corruption Detection) on selected memory ranges, enable
TTE.mcd in PTEs, return ADI parameters to userspace and save/restore A
On 01/04/2017 03:40 PM, Dave Hansen wrote:
On 01/04/2017 03:35 PM, Rob Gardner wrote:
Tags are not cleared at all when memory is freed, but rather, lazily
(and automatically) cleared when memory is allocated.
What does "allocated" mean in this context? Physical or virtual? What
does this do, f
On 01/04/2017 03:35 PM, Rob Gardner wrote:
> Tags are not cleared at all when memory is freed, but rather, lazily
> (and automatically) cleared when memory is allocated.
What does "allocated" mean in this context? Physical or virtual? What
does this do, for instance?
ptr = malloc(PAGE_SI
On 01/04/2017 03:27 PM, Dave Hansen wrote:
On 01/04/2017 02:46 PM, Khalid Aziz wrote:
This patch extends mprotect to enable ADI (TSTATE.mcde), enable/disable
MCD (Memory Corruption Detection) on selected memory ranges, enable
TTE.mcd in PTEs, return ADI parameters to userspace and save/restore A
One other high-level comment: It would be nice to see the
arch-independent and x86 portions broken out and explained in their own
right, even if they're small patches. It's a bit cruel to make us
scroll through a thousand lines of sparc code to see the bits
interesting to us.
It would also be re
On 01/04/2017 02:46 PM, Khalid Aziz wrote:
> This patch extends mprotect to enable ADI (TSTATE.mcde), enable/disable
> MCD (Memory Corruption Detection) on selected memory ranges, enable
> TTE.mcd in PTEs, return ADI parameters to userspace and save/restore ADI
> version tags on page swap out/in.
ADI is a new feature supported on sparc M7 and newer processors to allow
hardware to catch rogue accesses to memory. ADI is supported for data
fetches only and not instruction fetches. An app can enable ADI on its
data pages, set version tags on them and use versioned addresses to
access the data p
On Wed, Jan 4, 2017 at 11:20 PM, Jonathan Corbet wrote:
> On Wed, 04 Jan 2017 23:11:30 +0100
> "Rafael J. Wysocki" wrote:
>
>> I'm assuming then, that you're going to handle cpufreq docs changes in the
>> future.
>>
>> Some cpufreq patches update the docs too, though, so there may be changes in
>
On Wed, 04 Jan 2017 23:11:30 +0100
"Rafael J. Wysocki" wrote:
> I'm assuming then, that you're going to handle cpufreq docs changes in the
> future.
>
> Some cpufreq patches update the docs too, though, so there may be changes in
> there coming from two sources.
I saw it wasn't in linux-next ye
On Wednesday, January 04, 2017 02:35:27 PM Jonathan Corbet wrote:
> On Mon, 2 Jan 2017 12:38:15 +0530
> Viresh Kumar wrote:
>
> > > +The following POWER processors are supported in powernv mode:
> > > +POWER8
> > > +POWER9
>
> I've applied this to the docs tree, thanks.
OK
I'm assuming then, t
On Mon, 2 Jan 2017 16:22:22 +0100
Paolo Bonzini wrote:
> these patches are the result of my experiments with using kernel-doc
> for QEMU's documentation. Patches 1 and 2 should be relatively
> straightforward, as they are simple bugfixes. Patches 3 to 5, instead,
> are making the docbook backe
On Sat, 24 Dec 2016 16:27:29 +0800
Sanjeev wrote:
> timepps.h , as well as PPS sample test utilities, are
> no longer in the kernel tree. Update documentation
> to point to new locations.
I've applied the set to the docs tree, thanks.
jon
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On Wed, 28 Dec 2016 21:51:37 +
Colin King wrote:
> Documentation/hwmon/ds1621| 8
> Documentation/thermal/nouveau_thermal | 2 +-
> 2 files changed, 5 insertions(+), 5 deletions(-)
Applied to the docs tree, thanks.
jon
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On Mon, 2 Jan 2017 12:38:15 +0530
Viresh Kumar wrote:
> > +The following POWER processors are supported in powernv mode:
> > +POWER8
> > +POWER9
I've applied this to the docs tree, thanks.
jon
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On Sun, 1 Jan 2017 12:32:45 +
Jonathan Cameron wrote:
> This is a manual conversion of the existing DocBook documentation
> for IIO. The intent is not to substantially change any of the
> content in this patch, but to give a base to build upon.
This looks good. Applied to the docs-tree, t
On Sun, Dec 18, 2016 at 01:38:42PM -0700, Jonathan Corbet wrote:
> > In docutils 0.13, the return type of get_column_widths method of the
> > Table directive has changed [1], which breaks our flat-table directive
> > and leads to a TypeError when trying to build the docs [2].
> >
> > This patch add
On Wed, 04 Jan 2017, Paolo Bonzini wrote:
> On 03/01/2017 10:57, Jani Nikula wrote:
>> On Mon, 02 Jan 2017, Paolo Bonzini wrote:
>>> Hi,
>>>
>>> these patches are the result of my experiments with using kernel-doc
>>> for QEMU's documentation. Patches 1 and 2 should be relatively
>>> straightfor
On 03/01/2017 10:57, Jani Nikula wrote:
> On Mon, 02 Jan 2017, Paolo Bonzini wrote:
>> Hi,
>>
>> these patches are the result of my experiments with using kernel-doc
>> for QEMU's documentation. Patches 1 and 2 should be relatively
>> straightforward, as they are simple bugfixes. Patches 3 to
Signed-off-by: Peter Rosin
---
.../bindings/iio/multiplexer/io-channel-mux.txt| 39 ++
MAINTAINERS| 6
2 files changed, 45 insertions(+)
create mode 100644
Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt
Extend the inkern api with functions for reading and writing ext_info
of iio channels.
Acked-by: Jonathan Cameron
Signed-off-by: Peter Rosin
---
drivers/iio/inkern.c | 60
include/linux/iio/consumer.h | 37 +++
2 files
Hi!
v6 -> v7 changes
- move from drivers/misc/mux-* to drivers/mux/
[I will remove Cc:s to Arnd and Greg for v8, when/if that happens]
- add managed versions of mux_chip_alloc and mux_chip_register
- use the above in mux-gpio.c and mux-adg792a.c
- also use them to support a simplified binding of
Signed-off-by: Peter Rosin
---
drivers/mux/mux-core.c | 81 --
drivers/mux/mux-gpio.c | 56 ++
include/linux/mux.h| 7 +
3 files changed, 89 insertions(+), 55 deletions(-)
diff --git a/drivers/mux/mux-core.c
Signed-off-by: Peter Rosin
---
.../devicetree/bindings/i2c/i2c-mux-simple.txt | 81 ++
1 file changed, 81 insertions(+)
create mode 100644 Documentation/devicetree/bindings/i2c/i2c-mux-simple.txt
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mux-simple.txt
b/Do
This is a generic simple i2c mux that uses the generic multiplexer
subsystem to do the muxing.
The user can select if the mux is to be mux-locked and parent-locked
as described in Documentation/i2c/i2c-topology.
Acked-by: Jonathan Cameron
Signed-off-by: Peter Rosin
---
drivers/i2c/muxes/Kconfi
Analog Devices ADG792A/G is a triple 4:1 mux.
Signed-off-by: Peter Rosin
---
.../devicetree/bindings/mux/mux-adg792a.txt| 79 ++
1 file changed, 79 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mux/mux-adg792a.txt
diff --git a/Documentation/devi
Analog Devices ADG792A/G is a triple 4:1 mux.
Signed-off-by: Peter Rosin
---
drivers/mux/Kconfig | 12
drivers/mux/Makefile | 1 +
drivers/mux/mux-adg792a.c | 169 ++
3 files changed, 182 insertions(+)
create mode 100644 drivers/mux
Acked-by: Jonathan Cameron
Signed-off-by: Peter Rosin
---
.../devicetree/bindings/mux/mux-controller.txt | 127 +
Documentation/devicetree/bindings/mux/mux-gpio.txt | 68 +++
MAINTAINERS| 5 +
3 files changed, 200 inserti
Signed-off-by: Peter Rosin
---
Documentation/driver-model/devres.txt | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Documentation/driver-model/devres.txt
b/Documentation/driver-model/devres.txt
index ca9d1eb46bc0..dc51fb024190 100644
--- a/Documentation/driver-model/devres.t
Add a new minimalistic subsystem that handles multiplexer controllers.
When multiplexers are used in various places in the kernel, and the
same multiplexer controller can be used for several independent things,
there should be one place to implement support for said multiplexer
controller.
A singl
When a multiplexer changes how an iio device behaves (for example
by feeding different signals to an ADC), this driver can be used
to create one virtual iio channel for each multiplexer state.
Depends on the generic multiplexer subsystem.
Cache any ext_info values from the parent iio channel, cre
Signed-off-by: Peter Rosin
---
.../devicetree/bindings/mux/mux-controller.txt | 26 ++
1 file changed, 26 insertions(+)
diff --git a/Documentation/devicetree/bindings/mux/mux-controller.txt
b/Documentation/devicetree/bindings/mux/mux-controller.txt
index 42b2177e5ae1..4e
On Wed, 04 Jan 2017, Sebastian Andrzej Siewior wrote:
> On 2016-12-23 10:03:09 [+0200], Jani Nikula wrote:
>> > --- /dev/null
>> > +++ b/Documentation/core-api/cpu_hotplug.rst
>> > @@ -0,0 +1,372 @@
>> > +=
>> > +CPU hotplug in the Kernel
>> > +=
>>
On Thu, Dec 29, 2016 at 05:43:32PM -0500, Christopher Covington wrote:
> From: Shanker Donthineni
>
> On the Qualcomm Datacenter Technologies Falkor v1 CPU, memory accesses may
> allocate TLB entries using an incorrect ASID when TTBRx_EL1 is being
> updated. Changing the TTBRx_EL1[ASID] and TTBRx
On Wed, Jan 04, 2017 at 09:39:48AM +, Chris Wilson wrote:
> On Wed, Jan 04, 2017 at 10:01:37AM +0100, Daniel Vetter wrote:
> > On Mon, Jan 02, 2017 at 03:17:05PM -0200, Gabriel Krisman Bertazi wrote:
> > > Signed-off-by: Gabriel Krisman Bertazi
> > > ---
> > > drivers/gpu/drm/drm_cache.c | 23
On 2016-12-23 10:03:09 [+0200], Jani Nikula wrote:
> > --- /dev/null
> > +++ b/Documentation/core-api/cpu_hotplug.rst
> > @@ -0,0 +1,372 @@
> > +=
> > +CPU hotplug in the Kernel
> > +=
> > +
> > +:Date: December, 2016
> > +:Author: Sebastian Andrzej S
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