On 19/05/16 16:22, Michael Ellerman wrote:
Did you test the plugins with all gcc versions (4.5-6)?
What's the concern about gcc versions? Just not breaking the build on old
compilers?
I'm pretty sure powerpc big endian still builds with gcc 4.4.
gcc's plugin support only landed in 4.5, so we
On Wed, 2016-05-18 at 12:33 +0200, Emese Revfy wrote:
> > I've done some basic sanity testing on powerpc with the cyclomatic
> > complexity plugin (with LE native + cross-compilers) and it seems to
> > work with the patch below.
> >
> > Signed-off-by: Andrew Donnellan
> >
> > diff --git a/arc
On Thu, May 19, 2016 at 11:42:20AM +0800, Boqun Feng wrote:
> I spend some time to make tools/testing/selftest/rcutorture run on PPC,
> here are some documention and fixes made while I was trying.
>
> The scripts are able to run and get results on PPC, however please
> note there are some stalls e
On Thu, May 19, 2016 at 11:42:23AM +0800, Boqun Feng wrote:
> The option "-soundhw pcspk" gives me a error on PPC as follow:
>
> qemu-system-ppc64: ISA bus not available for pcspk
>
> , which means this option doesn't work on ppc by default. So simply make
> this an x86-specific option via identi
Do not restrict the cpu type to POWER7 for QEMU as we have POWER8 now.
Signed-off-by: Boqun Feng
---
tools/testing/selftests/rcutorture/bin/functions.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/rcutorture/bin/functions.sh
b/tools/testing/selfte
The option "-soundhw pcspk" gives me a error on PPC as follow:
qemu-system-ppc64: ISA bus not available for pcspk
, which means this option doesn't work on ppc by default. So simply make
this an x86-specific option via identify_qemu_args().
Signed-off-by: Boqun Feng
---
tools/testing/selftests
vmlinux is available for all the architectures, and suitable for running
a KVM guest by QEMU, besides, we used to copy the vmlinux to $resdir
anyway. Therefore it makes sense to use it as the fallback kernel image
for rcutorture KVM tests.
This patch makes identify_boot_image() return vmlinux if
$
Using dracut is another way to get an initramfs for kvm based rcu
torture tests, which is more flexible than using the host's initramfs
image, because modules and binaries may be added or removed via dracut
command options. So add an example in the document, in case that there
are some situations w
I spend some time to make tools/testing/selftest/rcutorture run on PPC,
here are some documention and fixes made while I was trying.
The scripts are able to run and get results on PPC, however please
note there are some stalls even build errors that could be found
by the tests currently.
As I'm c
On 5/18/2016 12:15 PM, Christian Lamparter wrote:
> On Tuesday, May 17, 2016 04:50:48 PM John Youn wrote:
>> On 5/14/2016 6:11 AM, Christian Lamparter wrote:
>>> On Thursday, May 12, 2016 11:40:28 AM John Youn wrote:
On 5/12/2016 6:30 AM, Christian Lamparter wrote:
> On Thursday, May 12, 2
On Wed, 18 May 2016 02:09:37 +0530
Anju T wrote:
> Instruction slot for detour buffer is allocated from
> the reserved area. For the time being 64KB is reserved
> in memory for this purpose. ppc_get_optinsn_slot() and
> ppc_free_optinsn_slot() are geared towards the allocation and freeing
> of me
On Wed, May 18, 2016 at 2:53 PM, Shilpasri G Bhat
wrote:
> Add fast_switch driver callback to support frequency update in
> interrupt context while using schedutil governor. Changing frequency
> in interrupt context will remove the jitter on the workloads which can
> be seen when a kworker thread
On 18/05/16 20:33, Emese Revfy wrote:
Did you test the plugins with all gcc versions (4.5-6)?
No, I tested with 4.8 and 5.2 as those are the toolchains I have on hand
- I'll try to test with the rest of 4.5 - 6.1.
--
Andrew Donnellan OzLabs, ADL Canberra
andrew.donnel...@au1.ibm
On Wed, May 18, 2016 at 2:53 PM, Shilpasri G Bhat
wrote:
> This patch adds driver callback for fast_switch and below observations
> on schedutil governor are done with this patch.
>
> In POWER8 there is a regression observed with schedutil compared to
> ondemand. With schedutil the frequency is no
On Wednesday 18 May 2016 21:14:55 Christian Lamparter wrote:
> On Tuesday, May 17, 2016 04:50:48 PM John Youn wrote:
> > On 5/14/2016 6:11 AM, Christian Lamparter wrote:
> Hey, that's really nice of you to do that :-D. Please keep me in the
> loop (Cc) for those then.
>
> Yes, this needs definit
On Wed, 18 May 2016, Josh Poimboeuf wrote:
> Yeah, I think this situation -- a task sleeping on an affected function
> in uninterruptible state for a long period of time -- would be
> exceedingly rare and not something we need to worry about for now.
Plus in case task'd be in TASK_UNINTERRUPTIB
On Tuesday, May 17, 2016 04:50:48 PM John Youn wrote:
> On 5/14/2016 6:11 AM, Christian Lamparter wrote:
> > On Thursday, May 12, 2016 11:40:28 AM John Youn wrote:
> >> On 5/12/2016 6:30 AM, Christian Lamparter wrote:
> >>> On Thursday, May 12, 2016 01:55:44 PM Arnd Bergmann wrote:
> On Thursd
On 18.05.2016 12:53, Thomas Huth wrote:
> On 18.05.2016 12:18, Thomas Huth wrote:
>> On 17.05.2016 19:49, Laurent Vivier wrote:
>>>
>>>
>>> On 17/05/2016 10:37, Alexander Graf wrote:
On 05/17/2016 10:35 AM, Laurent Vivier wrote:
>
> On 12/05/2016 16:23, Laurent Vivier wrote:
>>
>>>
On Tue, May 03, 2016 at 01:54:38PM +0530, Shreyas B. Prabhu wrote:
> If hardware supports stop state, use the deepest stop state when
>
> the cpu is offlined.
>
> Signed-off-by: Shreyas B. Prabhu
Reviewed-by: Gautham R. Shenoy
--
Thanks and Regards
gautham.
__
Hi Shreyas,
On Tue, May 03, 2016 at 01:54:36PM +0530, Shreyas B. Prabhu wrote:
> POWER ISA v3 defines a new idle processor core mechanism. In summary,
> a) new instruction named stop is added. This instruction replaces
> instructions like nap, sleep, rvwinkle.
> b) new per thread SPR named
On Wed, May 18, 2016 at 10:16:22AM +0200, Jiri Kosina wrote:
> On Tue, 17 May 2016, Jessica Yu wrote:
>
> > What about tasks sleeping on affected functions in uninterruptible sleep
> > (possibly indefinitely)? Since all signals are ignored, we wouldn't be
> > able to patch those tasks in this wa
On Tue, May 17, 2016 at 10:38:59AM +0800, Zhao Qiang wrote:
> Add uqe_serial document to
> Documentation/devicetree/bindings/powerpc/fsl/cpm_qe/uqe_serial.txt
>
> Signed-off-by: Zhao Qiang
> ---
> Changes for v2
> - modify tx/rx-clock-name specification
> Changes for v3
> - NA
> Chan
On Mon 2016-05-16 13:12:50, Josh Poimboeuf wrote:
> On Mon, May 09, 2016 at 02:23:03PM +0200, Petr Mladek wrote:
> > On Fri 2016-05-06 07:38:55, Josh Poimboeuf wrote:
> > > On Thu, May 05, 2016 at 01:57:01PM +0200, Petr Mladek wrote:
> > > > I have missed that the two commands are called with preem
From: Ian Munsie
This adds an afu_driver_ops structure with deliver_event callback. An
AFU driver such as cxlflash can fill this out and associate it with a
context to enable passing custom AFU specific events to userspace.
This also adds a new kernel API function cxl_context_pending_events(),
t
From: Ian Munsie
This adds an afu_driver_ops structure with deliver_event callback. An
AFU driver such as cxlflash can fill this out and associate it with a
context to enable passing custom AFU specific events to userspace.
This also adds a new kernel API function cxl_context_pending_events(),
t
From: Michael Neuling
This provides AFU drivers a means to associate private data with a cxl
context. This is particularly intended for make the new callbacks for
driver specific events easier for AFU drivers to use, as they can easily
get back to any private data structures they may use.
Signed
Add fast_switch driver callback to support frequency update in
interrupt context while using schedutil governor. Changing frequency
in interrupt context will remove the jitter on the workloads which can
be seen when a kworker thread is used for the changing the frequency.
Signed-off-by: Shilpasri
This patch adds driver callback for fast_switch and below observations
on schedutil governor are done with this patch.
In POWER8 there is a regression observed with schedutil compared to
ondemand. With schedutil the frequency is not ramping down and is
mostly stuck at max frequency during idle . T
> I've done some basic sanity testing on powerpc with the cyclomatic
> complexity plugin (with LE native + cross-compilers) and it seems to
> work with the patch below.
>
> Signed-off-by: Andrew Donnellan
>
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index a18a0dc..0cfed5b 100
On 18.05.2016 12:18, Thomas Huth wrote:
> On 17.05.2016 19:49, Laurent Vivier wrote:
>>
>>
>> On 17/05/2016 10:37, Alexander Graf wrote:
>>> On 05/17/2016 10:35 AM, Laurent Vivier wrote:
On 12/05/2016 16:23, Laurent Vivier wrote:
>
> On 12/05/2016 11:27, Alexander Graf wrote:
On 17.05.2016 19:49, Laurent Vivier wrote:
>
>
> On 17/05/2016 10:37, Alexander Graf wrote:
>> On 05/17/2016 10:35 AM, Laurent Vivier wrote:
>>>
>>> On 12/05/2016 16:23, Laurent Vivier wrote:
On 12/05/2016 11:27, Alexander Graf wrote:
> On 05/12/2016 11:10 AM, Laurent Vivier wrote:
On 13/05/16 09:57, Emese Revfy wrote:
This patch allows to build the whole kernel with GCC plugins. It was ported from
grsecurity/PaX. The infrastructure supports building out-of-tree modules and
building in a separate directory. Cross-compilation is supported too.
Currently the x86, arm, arm64 a
On Tue, 17 May 2016, Jessica Yu wrote:
> What about tasks sleeping on affected functions in uninterruptible sleep
> (possibly indefinitely)? Since all signals are ignored, we wouldn't be
> able to patch those tasks in this way, right? Would that be an
> unsupported case?
I don't think there is
On 05/18/2016 10:05 AM, Gautham R Shenoy wrote:
> On Tue, May 03, 2016 at 01:54:30PM +0530, Shreyas B. Prabhu wrote:
>> CHECK_HMI_INTERRUPT is used to check for HMI's in reset vector. Move
>> the macro to a common location (exception-64s.h)
>> This patch does not change any functionality.
>>
>
>
Hi Gautham,
On 05/18/2016 11:55 AM, Gautham R Shenoy wrote:
> Hi Shreyas,
>
> On Tue, May 03, 2016 at 01:54:31PM +0530, Shreyas B. Prabhu wrote:
>> In the current code, when the thread wakes up in reset vector, some
>> of the state restore code and check for whether a thread needs to
>> branch to
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