On POWER8 when switching to a KVM guest we set bits in MMCR2 to freeze
the PMU counters. Aside from on boot they are then never reset,
resulting in stuck perf counters for any user in the guest or host.
We now set MMCR2 to 0 whenever enabling the PMU, which provides a sane
state for perf to use th
Instead of separate bits for every POWER8 PMU feature, have a single one
for v2.07 of the architecture.
This saves us adding a MMCR2 define for a future patch.
Cc: sta...@vger.kernel.org
Signed-off-by: Joel Stanley
Acked-by: Michael Ellerman
---
arch/powerpc/include/asm/perf_event_server.h | 3
These two registers are already saved in the block above. Aside from
being unnecessary, by the time we get down to the second save location
r8 no longer contains MMCR2, so we are clobbering the saved value with
PMC5.
MMCR2 primarily consists of counter freeze bits. So restoring the value
of PMC5 i
These three patches are required for correct operation of perf counters on
POWER8 boxes when running KVM guests. There were two bugs; not clearing MMCR2
and writing over the saved value when entering a guest. However the first
obscured the second.
Thanks to who mpe helped diagnose the issue and po
Hi Nicholas,
On Tue, 8 Jul 2014 01:04:09 -0400 Nicholas Krause wrote:
>
> powerpc:allmodconfig has been failing for some time with the following
> error.
This patch has already bee submitted directly by Guenter, however for
future reference: when you submit someone else's patch, you should
inc
MADV_FREE needs pmd_dirty and pmd_mkclean for detecting recent
overwrite of the contents since MADV_FREE syscall is called for
THP page.
This patch adds pmd_dirty and pmd_mkclean for THP page MADV_FREE
support.
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: "Aneesh Kumar K.V"
Cc: linuxppc-d
Commit 046d662f4818 "coredump: make core dump functionality optional"
made the coredump optional, but didn't update the spufs code that
depends on it. That leads to build errors such as:
arch/powerpc/platforms/built-in.o: In function `.spufs_arch_write_note':
coredump.c:(.text+0x22cd4): undefi
The POWER8 processor has a Micro Partition Prefetch Engine, which is
a fancy way of saying "has way to store and load contents of L2 or
L2+MRU way of L3 cache". We initiate the storing of the log (list of
addresses) using the logmpp instruction and start restore by writing
to a SPR.
The logmpp ins
Some Freescale boards like T1040RDB have on board CPLD connected on
the IFC bus. Add binding for this in board.txt file
Signed-off-by: Priyanka Jain
---
Changes for v2: Incorporated Scott's comments
.../devicetree/bindings/powerpc/fsl/board.txt | 16
1 files changed, 16
powerpc:allmodconfig has been failing for some time with the following
error.
arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
arch/powerpc/kernel/exceptions-64s.S:1312: Error: attempt to move .org backwards
make[1]: *** [arch/powerpc/kernel/head_64.o] Error 1
A number of attempts to fix
From: Guenter Roeck on Mon, Jul 7, 2014 at 11:57 PM wrote
Subject: Re: Fwd: Allyesconfig for powerpc still Failing
To: Nick Krause , "linux-ker...@vger.kernel.org"
, "linuxppc-dev@lists.ozlabs.org"
On 07/07/2014 08:38 PM, Nick Krause wrote:
>
> On 07/07/2014 07:45 PM, Nick Krause wrote:
>>
>>
>
> -Original Message-
> From: Wood Scott-B07421
> Sent: Tuesday, July 08, 2014 2:56 AM
> To: Jain Priyanka-B32167
> Cc: devicet...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org; linux-
> s...@vger.kernel.org; linux-...@lists.infradead.org
> Subject: Re: [PATCH] devicetree/bindings: Add bi
On Wed, 2014-07-02 at 14:22 -0600, Bjorn Helgaas wrote:
> On Tue, Jun 10, 2014 at 03:10:30PM +0200, Alexander Gordeev wrote:
> > There are PCI devices that require a particular value written
> > to the Multiple Message Enable (MME) register while aligned on
> > power of 2 boundary value of actually
On 07/07/2014 08:38 PM, Nick Krause wrote:
On 07/07/2014 07:45 PM, Nick Krause wrote:
Today I tested the allyesconfig for powerpc and it seems to be still
failing according to my tests.
Below are the error messages I get before the jobs finish and exit
failing the build.
Cheers Nick
arch/powerp
> -Original Message-
> From: Wood Scott-B07421
> Sent: Tuesday, July 08, 2014 3:00 AM
> To: Jain Priyanka-B32167
> Cc: devicet...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org
> Subject: Re: [PATCH] devicetree/bindings/powerpc/fsl: Add binding for
> board
>
> On Mon, 2014-07-07 at 14:06
On Thu, 2014-07-03 at 17:45 +0300, Mihai Caraman wrote:
> Handle indirect entries (IND) in TLB emulation code. Translation size of IND
> entries differ from the size of referred Page Tables (Linux guests now use IND
> of 2MB for 4KB PTs) and this require careful tweak of the existing logic.
>
> TL
On Mon, Jul 7, 2014 at 11:03 PM wrote Benjamin Herrenschmidt
On Mon, 2014-07-07 at 22:45 -0400, Nick Krause wrote:
> Today I tested the allyesconfig for powerpc and it seems to be still
> failing according to my tests.
> Below are the error messages I get before the jobs finish and exit
> failing
On Mon, 2014-07-07 at 20:03 -0700, Guenter Roeck wrote:
> ping ...
>
> Ben, I know this is not perfect, but on the other side it is simple
> and would be easy to backport. With this in place, a complete/clean
> fix would not be as urgent. Any chance to get it applied ?
Yes, that definitely helps,
Just hoped this log may help you in your issues with the train wreck.
If you need any help with the issues here please let me know.
Cheers Nick :)
On Mon, Jul 7, 2014 at 11:03 PM, Benjamin Herrenschmidt
wrote:
> On Mon, 2014-07-07 at 22:45 -0400, Nick Krause wrote:
>> Today I tested the allyescon
On 07/07/2014 07:45 PM, Nick Krause wrote:
Today I tested the allyesconfig for powerpc and it seems to be still
failing according to my tests.
Below are the error messages I get before the jobs finish and exit
failing the build.
Cheers Nick
arch/powerpc/kernel/exceptions-64s.S: Assembler messages
On Mon, 2014-07-07 at 22:45 -0400, Nick Krause wrote:
> Today I tested the allyesconfig for powerpc and it seems to be still
> failing according to my tests.
> Below are the error messages I get before the jobs finish and exit
> failing the build.
> Cheers Nick
> arch/powerpc/kernel/exceptions-64s.
ping ...
Ben, I know this is not perfect, but on the other side it is simple
and would be easy to backport. With this in place, a complete/clean
fix would not be as urgent. Any chance to get it applied ?
Nick, this doesn't fix the allyesconfig build - it still fails with
relocation errors. But i
Today I tested the allyesconfig for powerpc and it seems to be still
failing according to my tests.
Below are the error messages I get before the jobs finish and exit
failing the build.
Cheers Nick
arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
arch/powerpc/kernel/exceptions-64s.S:1331:
On Fri, 2014-07-04 at 10:15 +0200, Alexander Graf wrote:
> On 03.07.14 16:45, Mihai Caraman wrote:
> > diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
> > index a192975..ab1077f 100644
> > --- a/arch/powerpc/kvm/booke.c
> > +++ b/arch/powerpc/kvm/booke.c
> > @@ -1286,6 +1286,46 @@
Hi Tony,
> > Shows how much we use make install :) Below is a quick hack to get
> > you going but we should look at either fixing the Ubuntu
> > installkernel to handle extra optional args, or stop passing them
> > from the ppc64 kernel install.sh script.
>
> It seems like passign the zImage fil
On 06/26/2014 07:03 PM, Tyrel Datwyler wrote:
> Added big endian annotations to relevant data structure fields, and necessary
> byte swappings to support little endian builds.
Acked-by: Brian King
Thanks,
Brian
--
Brian King
Power Linux I/O
IBM Linux Technology Center
__
On Mon, 2014-07-07 at 05:26 -0500, Liu Shengzhou-B36685 wrote:
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Thursday, June 26, 2014 7:35 AM
> > To: Liu Shengzhou-B36685
> > Cc: linuxppc-dev@lists.ozlabs.org
> > Subject: Re: [3/3,v4] powerpc/t2080rdb: Add T2080RDB board suppo
On Mon, 2014-07-07 at 14:06 +0530, Priyanka Jain wrote:
> Signed-off-by: Priyanka Jain
> ---
> .../devicetree/bindings/powerpc/fsl/board.txt | 17 -
> 1 files changed, 16 insertions(+), 1 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/powerpc/fsl/board.txt
On Fri, 2014-07-04 at 10:03 +0530, Priyanka Jain wrote:
> Some Freescale boards like T1040RDB have on board CPLD connected on
> the IFC bus. Add binding for this in board.txt file
>
> Signed-off-by: Priyanka Jain
> ---
> Changes for v2:
> convert board name to lower-case based on Scott's suggest
On Thu, 2014-07-03 at 23:08 -0500, Jain Priyanka-B32167 wrote:
>
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Friday, July 04, 2014 3:40 AM
> > To: Jain Priyanka-B32167
> > Cc: devicet...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org; linux-
> > s...@vger.kernel.org; linux
On Mon, Jul 07, 2014 at 01:40:48PM -0600, Bjorn Helgaas wrote:
> As you can tell, I'm a little skeptical about this. It's a fairly big
> change, it affects the arch interface, it seems to be targeted for
> only a single chipset (though it's widely used), and we already
> support a standard solutio
On Fri, Jul 4, 2014 at 2:57 AM, Alexander Gordeev wrote:
> On Wed, Jul 02, 2014 at 02:22:01PM -0600, Bjorn Helgaas wrote:
>> On Tue, Jun 10, 2014 at 03:10:30PM +0200, Alexander Gordeev wrote:
>> > There are PCI devices that require a particular value written
>> > to the Multiple Message Enable (MM
On Fri, Jul 4, 2014 at 2:58 AM, Alexander Gordeev wrote:
> On Thu, Jul 03, 2014 at 09:20:52AM +, David Laight wrote:
>> From: Bjorn Helgaas
>> > On Tue, Jun 10, 2014 at 03:10:30PM +0200, Alexander Gordeev wrote:
>> > > There are PCI devices that require a particular value written
>> > > to the
On Mon, 2014-07-07 at 17:29 +0800, Shengzhou Liu wrote:
> Signed-off-by: Shengzhou Liu
> ---
> Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
> 1 file changed, 1 insertion(+)
Again, please CC all relevant mailing lists. Where is the devicetree
list? And mention why this patch is
On 07/06/2014 11:56 PM, Benjamin Herrenschmidt wrote:
On Fri, 2014-07-04 at 19:25 -0700, Guenter Roeck wrote:
+cooling-fan#8-data {
+ sensor-id = <0x7052107>;
+ phandle = <0x1028>;
+ linux,phandle = <0x1028>;
+ compatible = "ibm,opal-sensor-cooling-fan";
phandle and lin
> -Original Message-
> From: Wood Scott-B07421
> Sent: Thursday, June 26, 2014 7:35 AM
> To: Liu Shengzhou-B36685
> Cc: linuxppc-dev@lists.ozlabs.org
> Subject: Re: [3/3,v4] powerpc/t2080rdb: Add T2080RDB board support
>
> On Wed, Jun 11, 2014 at 06:10:06PM +0800, Shengzhou Liu wrote:
> >
Signed-off-by: Shengzhou Liu
---
Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
1 file changed, 1 insertion(+)
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt
b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 1a6793b..3c10a21 100644
--- a/Documentati
Thanks Joerg.
> -Original Message-
> From: Joerg Roedel [mailto:j...@8bytes.org]
> Sent: Monday, July 07, 2014 2:02 PM
> To: Sethi Varun-B16395
> Cc: io...@lists.linux-foundation.org; linux-ker...@vger.kernel.org;
> linuxppc-dev@lists.ozlabs.org; alex.william...@redhat.com
> Subject: Re: [
Signed-off-by: Priyanka Jain
---
.../devicetree/bindings/powerpc/fsl/board.txt | 17 -
1 files changed, 16 insertions(+), 1 deletions(-)
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/board.txt
b/Documentation/devicetree/bindings/powerpc/fsl/board.txt
index f3
On Tue, Jun 24, 2014 at 07:27:14PM +0530, Varun Sethi wrote:
> This patch set contains fixes for the PAMU driver.
> The patches are based on 3.16-rc1.
>
> Varun Sethi (3):
> Fix PAMU window size check.
> Fix the device domain attach condition.
> Fix the error condition during iommu group c
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