On Thu, 2018-10-25 at 12:07:54 UTC, "DATACOM - Felipe.Rechia" wrote:
> From: "Felipe Rechia"
> Date: Wed, 24 Oct 2018 10:57:22 -0300
> Subject: [PATCH] powerpc/process: Fix flush_all_to_thread for SPE
>
> Fix a bug introduced by the creation of flush_all_to_thread() for
> processors that have
On Tue, 2018-10-23 at 01:32:12 UTC, Tyrel Datwyler wrote:
> Build error is encountered when inlcuding if no explicit or
> implicit include of cpumask.h exists in the including file.
>
> In file included from arch/powerpc/platforms/pseries/hotplug-pci.c:3:0:
>
On Mon, 2018-10-22 at 21:16:26 UTC, Breno Leitao wrote:
> Test ptrace-tm-spd-gpr fails on current kernel (4.19) due to a segmentation
> fault that happens on the child process prior to setting cptr[2] = 1. This
> causes the parent process to wait forever at 'while (!pptr[2])' and the test
> to
>
On Sat, 2018-10-20 at 09:54:55 UTC, Paul Mackerras wrote:
> This changes the KVM code that emulates the decrementer function to do
> the conversion of decrementer values to time intervals in nanoseconds
> by calling the tb_to_ns() function exported by the powerpc timer code,
> in preference to
On Fri, 2018-10-19 at 06:55:08 UTC, Christophe Leroy wrote:
> The 8xx TLB miss routines are patched when (de)activating
> perf counters.
>
> This patch uses the new patch_site functionality in order
> to get a better code readability and avoid a label mess when
> dumping the code with 'objdump
On Fri, 2018-10-19 at 06:55:06 UTC, Christophe Leroy wrote:
> The 8xx TLB miss routines are patched at startup at several places.
>
> This patch uses the new patch_site functionality in order
> to get a better code readability and avoid a label mess when
> dumping the code with 'objdump -d'
>
>
On Fri, 2018-10-19 at 06:55:04 UTC, Christophe Leroy wrote:
> This patch adds a helper to get the address of a patch_site
>
> Signed-off-by: Christophe Leroy
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/082e2869fc022de4db9977e06558da
cheers
On Fri, 2018-10-19 at 06:54:54 UTC, Christophe Leroy wrote:
> This reverts commit 4f94b2c7462d9720b2afa7e8e8d4c19446bb31ce.
>
> That commit was buggy, as it used rlwinm instead of rlwimi.
> Instead of fixing that bug, we revert the previous commit in order to
> reduce the dependency between L1
On Wed, 2018-10-10 at 10:22:59 UTC, Aravinda Prasad wrote:
> This patch exports the maximum possible amount of memory
> configured on the system via /proc/powerpc/lparcfg.
>
> Signed-off-by: Aravinda Prasad
Applied to powerpc next, thanks.
Hi,
On 31/10/18 8:03 AM, Xiaowei Bao wrote:
>
>
> -Original Message-
> From: Xiaowei Bao
> Sent: 2018年10月26日 17:19
> To: 'Kishon Vijay Abraham I' ; bhelg...@google.com;
> robh...@kernel.org; mark.rutl...@arm.com; shawn...@kernel.org; Leo Li
> ; lorenzo.pieral...@arm.com;
On Sun, 2018-10-28 at 18:57 +0100, LEROY Christophe wrote:
> Russell Currey a écrit :
>
> > Guarded Userspace Access Prevention (GUAP) utilises a feature of
> > the Radix MMU which disallows read and write access to userspace
> > addresses. By utilising this, the kernel is prevented from
> >
On Fri, 2018-10-26 at 18:29 +0200, LEROY Christophe wrote:
> Russell Currey a écrit :
>
> > Guarded Userspace Access Prevention is a security mechanism that
> > prevents
> > the kernel from being able to read and write userspace addresses
> > outside of
> > the allowed paths, most commonly
We cannot build these files with clang as it does not allow altivec
instructions in assembly when -msoft-float is passed.
Jinsong Ji wrote:
> We currently disable Altivec/VSX support when enabling soft-float. So
> any usage of vector builtins will break.
>
> Enable Altivec/VSX with soft-float
-Original Message-
From: Xiaowei Bao
Sent: 2018年10月26日 17:19
To: 'Kishon Vijay Abraham I' ; bhelg...@google.com;
robh...@kernel.org; mark.rutl...@arm.com; shawn...@kernel.org; Leo Li
; lorenzo.pieral...@arm.com; a...@arndb.de;
gre...@linuxfoundation.org; M.h. Lian ; Mingkai Hu
; Roy
Hi Douglas,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on kgdb/kgdb-next]
[also build test WARNING on v4.19 next-20181030]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci
When building with clang (8 trunk, 7.0 release) the frame size limit is
hit:
arch/powerpc/xmon/xmon.c:452:12: warning: stack frame size of 2576
bytes in function 'xmon_core' [-Wframe-larger-than=]
Some investigation by Naveen indicates this is due to clang saving the
addresses to printf format
On 10/30/2018 08:16 AM, Michael Ellerman wrote:
> Thiago Jung Bauermann writes:
>
>> Breno Leitao writes:
>>
>>> Hi Tyrel,
>>>
>>> On 10/23/2018 05:41 PM, Tyrel Datwyler wrote:
> --- a/tools/testing/selftests/powerpc/ptrace/core-pkey.c
> +++
Hi,
On Tue, Oct 30, 2018 at 4:56 AM Daniel Thompson
wrote:
>
> On Mon, Oct 29, 2018 at 11:07:00AM -0700, Douglas Anderson wrote:
> > Looking back, this is pretty much two series squashed that could be
> > treated indepdently. The first is a serial series and the second is a
> > kgdb series.
>
>
Hi,
On Tue, Oct 30, 2018 at 4:46 AM Daniel Thompson
wrote:
>
> On Mon, Oct 29, 2018 at 11:07:07AM -0700, Douglas Anderson wrote:
> > The function kgdb_roundup_cpus() was passed a parameter that was
> > documented as:
> >
> > > the flags that will be used when restoring the interrupts. There is
>
Daniel,
On Tue, Oct 30, 2018 at 2:42 AM Daniel Thompson
wrote:
>
> On Mon, Oct 29, 2018 at 11:07:06AM -0700, Douglas Anderson wrote:
> > In kgdb_roundup_cpus() we've got code that looks like:
> > local_irq_enable();
> > smp_call_function(kgdb_call_nmi_hook, NULL, 0);
> >
When I had lockdep turned on and dropped into kgdb I got a nice splat
on my system. Specifically it hit:
DEBUG_LOCKS_WARN_ON(current->hardirq_context)
Specifically it looked like this:
sysrq: SysRq : DEBUG
[ cut here ]
DEBUG_LOCKS_WARN_ON(current->hardirq_context)
The function kgdb_roundup_cpus() was passed a parameter that was
documented as:
> the flags that will be used when restoring the interrupts. There is
> local_irq_save() call before kgdb_roundup_cpus().
Nobody used those flags. Anyone who wanted to temporarily turn on
interrupts just did
This series was originally part of the series ("serial: Finish kgdb on
qcom_geni; fix many lockdep splats w/ kgdb") but it made sense to
split it up.
It's believed that dropping into kgdb should be more robust once these
patches are applied.
Changes in v2:
- Removing irq flags separated from
On Tue, 30 Oct 2018 at 23:58, Masahiro Yamada
wrote:
>
> Evaluating cc-name invokes the compiler every time even when you are
> not compiling anything, like 'make help'. This is not efficient.
>
> The compiler type has been already detected in the Kconfig stage.
> Use CONFIG_CC_IS_CLANG, instead.
On Sun, Oct 28, 2018 at 06:16:51PM +0100, Geert Uytterhoeven wrote:
> If gcc decides not to inline make_sensor_label():
>
> WARNING: vmlinux.o(.text+0x4df549c): Section mismatch in reference from
> the function .create_device_attrs() to the function
> .init.text:.make_sensor_label()
>
Hi Masahiro,
On Tue, Oct 30, 2018 at 10:26:33PM +0900, Masahiro Yamada wrote:
> Evaluating cc-name invokes the compiler every time even when you are
> not compiling anything, like 'make help'. This is not efficient.
>
> The compiler type has been already detected in the Kconfig stage.
> Use
On Mon, Oct 29, 2018 at 11:07:06AM -0700, Douglas Anderson wrote:
> In kgdb_roundup_cpus() we've got code that looks like:
> local_irq_enable();
> smp_call_function(kgdb_call_nmi_hook, NULL, 0);
> local_irq_disable();
> Let's add kgdb to the list of reasons not to warn in
>
lseek should have returned value but we miss it maybe.
This is detected by Coverity scan:
CID: 1440481
Signed-off-by: Bo YU
---
arch/powerpc/boot/addnote.c | 6 +-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/boot/addnote.c b/arch/powerpc/boot/addnote.c
index
On Mon, Oct 29, 2018 at 11:07:00AM -0700, Douglas Anderson wrote:
> I started out this series trying to make sysrq work over the serial
> console on qcom_geni_serial, then fell into a rat's nest.
>
> To solve the deadlock I faced when enabling sysrq I tried to borrow
> code from '8250_port.c'
On Tue, Oct 30, 2018 at 11:56:28AM +, Daniel Thompson wrote:
> On Mon, Oct 29, 2018 at 11:07:00AM -0700, Douglas Anderson wrote:
> > Looking back, this is pretty much two series squashed that could be
> > treated indepdently. The first is a serial series and the second is a
> > kgdb series.
>
Thiago Jung Bauermann writes:
> Breno Leitao writes:
>
>> Hi Tyrel,
>>
>> On 10/23/2018 05:41 PM, Tyrel Datwyler wrote:
--- a/tools/testing/selftests/powerpc/ptrace/core-pkey.c
+++ b/tools/testing/selftests/powerpc/ptrace/core-pkey.c
@@ -352,17 +352,11 @@ static int
On 30 October 2018 at 08:27AM, Christian Zigotzky wrote:
On 30 October 2018 at 02:59AM, Benjamin Herrenschmidt wrote:
On Tue, 2018-10-30 at 02:42 +0100, Christian Zigotzky wrote:
OF patch for the latest Git kernel: http://www.xenosoft.de/of_v2.patch
This just seems to revert a whole bunch of
Masahiro Yamada writes:
> On Tue, Oct 30, 2018 at 9:36 PM Michael Ellerman wrote:
>>
>> Masahiro Yamada writes:
>> > diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
>> > index 17be664..338e827 100644
>> > --- a/arch/powerpc/Makefile
>> > +++ b/arch/powerpc/Makefile
>> > @@ -96,7
Christoph Hellwig writes:
> On Wed, Oct 31, 2018 at 12:09:29AM +1100, Benjamin Herrenschmidt wrote:
>> On Tue, 2018-10-30 at 13:58 +0100, Christoph Hellwig wrote:
>> > Please take my patch instead. We have a kernel polcity to not keep
>> > dead code around, and everyone including Linus and the
On Tue, Oct 30, 2018 at 9:20 AM Michael Ellerman wrote:
>
> Michael Ellerman writes:
> > Hi Rob,
> >
> > Sorry I missed this when you posted it.
> >
> > Rob Herring writes:
> >> Iterating thru cpu nodes is a common pattern. Create a common iterator
> >> which can find child nodes either by node
Michael Ellerman writes:
> Hi Rob,
>
> Sorry I missed this when you posted it.
>
> Rob Herring writes:
>> Iterating thru cpu nodes is a common pattern. Create a common iterator
>> which can find child nodes either by node name or device_type == cpu.
>> Using the former will allow for eventually
Hi Rob,
Sorry I missed this when you posted it.
Rob Herring writes:
> Iterating thru cpu nodes is a common pattern. Create a common iterator
> which can find child nodes either by node name or device_type == cpu.
> Using the former will allow for eventually dropping device_type
> properties
This code has never been unused in the kernel since it was merged, and
there has been no attempt that I could find to even submit users for
it. Besides the general policy of not keep 1000+ lines of dead
code, it helps cleaning up the DMA code and making powerpc user common
infrastructure.
This
Evaluating cc-name invokes the compiler every time even when you are
not compiling anything, like 'make help'. This is not efficient.
The compiler type has been already detected in the Kconfig stage.
Use CONFIG_CC_IS_CLANG, instead.
Signed-off-by: Masahiro Yamada
Acked-by: Michael Ellerman
On Wed, Oct 31, 2018 at 12:09:29AM +1100, Benjamin Herrenschmidt wrote:
> On Tue, 2018-10-30 at 13:58 +0100, Christoph Hellwig wrote:
> > Please take my patch instead. We have a kernel polcity to not keep
> > dead code around, and everyone including Linus and the attending IBMers
> > confirmed
On Tue, 2018-10-30 at 13:58 +0100, Christoph Hellwig wrote:
> Please take my patch instead. We have a kernel polcity to not keep
> dead code around, and everyone including Linus and the attending IBMers
> confirmed this.
Let's call a cat a cat ... ;-)
It's not *dead* code. It's code that is
Please take my patch instead. We have a kernel polcity to not keep
dead code around, and everyone including Linus and the attending IBMers
confirmed this.
On Tue, Oct 30, 2018 at 10:02:03PM +1100, Alistair Popple wrote:
> The NPU IOMMU is setup to mirror the parent PCIe device IOMMU
> setup.
On Tue, Oct 30, 2018 at 9:36 PM Michael Ellerman wrote:
>
> Masahiro Yamada writes:
> > diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
> > index 17be664..338e827 100644
> > --- a/arch/powerpc/Makefile
> > +++ b/arch/powerpc/Makefile
> > @@ -96,7 +96,7 @@
Masahiro Yamada writes:
> diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
> index 17be664..338e827 100644
> --- a/arch/powerpc/Makefile
> +++ b/arch/powerpc/Makefile
> @@ -96,7 +96,7 @@ aflags-$(CONFIG_CPU_BIG_ENDIAN) += $(call
> cc-option,-mabi=elfv1)
>
On Mon, Oct 29, 2018 at 11:07:00AM -0700, Douglas Anderson wrote:
> Looking back, this is pretty much two series squashed that could be
> treated indepdently. The first is a serial series and the second is a
> kgdb series.
Indeed.
I couldn't work out the link between the first 5 patches and the
On Mon, Oct 29, 2018 at 11:07:07AM -0700, Douglas Anderson wrote:
> The function kgdb_roundup_cpus() was passed a parameter that was
> documented as:
>
> > the flags that will be used when restoring the interrupts. There is
> > local_irq_save() call before kgdb_roundup_cpus().
>
> Nobody used
The NPU IOMMU is setup to mirror the parent PCIe device IOMMU
setup. Therefore it does not make sense to call dma operations such as
dma_map_page, etc. directly on these devices. The existing dma-ops
simply print a warning if they are ever called, however this is
unnecessary and the warnings are
On 10/29/2018 11:33 PM, Dave Hansen wrote:
But, that's really an implementation detail. The effect on the ABI and
how this might constrain future pkeys use is my bigger worry.
I'd also want to make sure that your specific use-case is compatible
with all the oddities of pkeys, like the 'clone'
On Mon, Oct 29, 2018 at 11:07:06AM -0700, Douglas Anderson wrote:
> In kgdb_roundup_cpus() we've got code that looks like:
> local_irq_enable();
> smp_call_function(kgdb_call_nmi_hook, NULL, 0);
> local_irq_disable();
>
> In certain cases when we drop into kgdb (like with sysrq-g on a
On 30 October 2018 at 02:59AM, Benjamin Herrenschmidt wrote:
On Tue, 2018-10-30 at 02:42 +0100, Christian Zigotzky wrote:
OF patch for the latest Git kernel: http://www.xenosoft.de/of_v2.patch
This just seems to revert a whole bunch of stuff, not really the right
way to go. Why is
On Mon, Oct 29, 2018 at 11:43 PM Abdul Haleem
wrote:
>
> Greeting's
>
> mainline build fails on my powerpc with commit 55469b : drivers: net:
> remove inclusion when not needed
>
> Machine type: PowerPC power 8 bare-metal
> kernel : 4.19.0
> gcc : 4.8.5
> config attached
>
Thanks for the
Greeting's
mainline build fails on my powerpc with commit 55469b : drivers: net:
remove inclusion when not needed
Machine type: PowerPC power 8 bare-metal
kernel : 4.19.0
gcc : 4.8.5
config attached
build errors:
drivers/net/ethernet/mellanox/mlx4/en_rx.c:582:18: warning: ‘struct
iphdr’
On Mon, Oct 29, 2018 at 11:31:55PM -0700, Ram Pai wrote:
> On Tue, Oct 30, 2018 at 04:03:00PM +1100, Paul Mackerras wrote:
> > On Mon, Oct 22, 2018 at 10:48:34AM +0530, Bharata B Rao wrote:
> > > HMM driver for KVM PPC to manage page transitions of
> > > secure guest via H_SVM_PAGE_IN and
On Tue, Oct 30, 2018 at 04:03:00PM +1100, Paul Mackerras wrote:
> On Mon, Oct 22, 2018 at 10:48:34AM +0530, Bharata B Rao wrote:
> > HMM driver for KVM PPC to manage page transitions of
> > secure guest via H_SVM_PAGE_IN and H_SVM_PAGE_OUT hcalls.
> >
> > H_SVM_PAGE_IN: Move the content of a
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