Providing "scv" support to userspace requires kernel support, so it
must be advertised as independently to the base ISA 3 instruction set.
The darn instruction relies on firmware enablement, so it has been
decided to split this out from the core ISA 3 feature as well.
Signed-off-by: Nicholas Pigg
On Fri, 19 May 2017 15:43:45 -0400
Don Zickus wrote:
> On Sat, May 20, 2017 at 12:53:06AM +1000, Nicholas Piggin wrote:
> > > I am curious to know what IBM thinks there. Currently the HARDLOCKUP
> > > detector sits on top of perf. I get the impression, you are removing that
> > > dependency. I
opal_npu_destroy_context() should be called with the NPU PHB, not the
PCIe PHB.
Signed-off-by: Alistair Popple
---
arch/powerpc/platforms/powernv/npu-dma.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/npu-dma.c
b/arch/powerpc/platforms/
On Sat, May 20, 2017 at 12:53:06AM +1000, Nicholas Piggin wrote:
> > I am curious to know what IBM thinks there. Currently the HARDLOCKUP
> > detector sits on top of perf. I get the impression, you are removing that
> > dependency. Is that a permanent thing or are you thinking of switching back
In function __rtc_read_alarm() its possible for an alarm time-stamp to
be invalid even after replacing missing components with current
time-stamp. The condition 'alarm->time.tm_year < 70' will trigger this
case and will cause the call to 'rtc_tm_to_time64(&alarm->time)'
return a negative value for
Hi Michael,
>> diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
>> index 2b33cfa..f75e512 100644
>> --- a/arch/powerpc/kernel/time.c
>> +++ b/arch/powerpc/kernel/time.c
>> @@ -738,12 +738,28 @@ static int __init get_freq(char *name, int cells,
>> unsigned long *val)
>>
>> s
On Fri, May 19, 2017 at 4:01 PM, David Laight wrote:
> From: Arnd Bergmann
>> Sent: 17 May 2017 22:40
>>
>> On Wed, May 17, 2017 at 11:16 PM, Chris Packham
>> wrote:
>> > On 18/05/17 06:18, Borislav Petkov wrote:
>> > One thing I would like confirmation on is is in_le32 -> ioread32 the
>> > corre
On Fri, 19 May 2017 09:17:53 -0400
Don Zickus wrote:
> On Fri, May 19, 2017 at 09:07:31AM +1000, Nicholas Piggin wrote:
> > On Thu, 18 May 2017 12:30:28 -0400
> > Don Zickus wrote:
> >
> > > (adding Uli)
> > >
> > > On Fri, May 19, 2017 at 01:50:26AM +1000, Nicholas Piggin wrote:
> > > > I
From: Anton Blanchard
ppc64 is the only architecture that turns on VIRT_CPU_ACCOUNTING_NATIVE
by default. The overhead of this option is extremely high - a context
switch microbenchmark using sched_yield() is almost 20% slower.
To get finer grained user/hardirq/softirq statitics, the
IRQ_TIME_AC
From: Arnd Bergmann
> Sent: 17 May 2017 22:40
>
> On Wed, May 17, 2017 at 11:16 PM, Chris Packham
> wrote:
> > On 18/05/17 06:18, Borislav Petkov wrote:
> > One thing I would like confirmation on is is in_le32 -> ioread32 the
> > correct change? I tossed up between ioread32 and readl. Looking at
On Fri, May 19, 2017 at 09:07:31AM +1000, Nicholas Piggin wrote:
> On Thu, 18 May 2017 12:30:28 -0400
> Don Zickus wrote:
>
> > (adding Uli)
> >
> > On Fri, May 19, 2017 at 01:50:26AM +1000, Nicholas Piggin wrote:
> > > I'd like to make it easier for architectures that have their own NMI /
> > >
Hi!
> >>> > > Signed-off-by: Pavel Machek
> >>> >
> >>> > Ping? Two partitions at same place are bad news...
> >>>
> >>> Please expand on "bad news"? What are the runtime effects of this
> >>> change? Decisions about which kernel(s) to patch depend on this info.
> >>
> >> Well... two partitio
From: Christoph Hellwig
> Sent: 16 May 2017 12:48
>
> The new callback gets a pointer to the timer_list itself, which can
> then be used to get the containing structure using container_of
> instead of casting from and to unsigned long all the time.
What about sensible drivers that put some other v
Hi,
Memory hotplug for a pseries guest on PowerKVM fails with the following
error when CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE=y in the guest kernel. (I
am on commit b23afd384801)
[root@localhost ~]# pseries-hotplug-mem: Attempting to hot-add 4 LMB(s) at
index 8020
removing memory fails, becaus
On Mon, 2017-05-15 at 16:07 +0300, Ivan Mikhaylov wrote:
> +#ifdef CONFIG_FSP2
> + /*
> + * Prevent a kernel panic caused by unintentionally clearing TCR
> + * watchdog bits. At this point in the kernel boot, the watchdog has
> + * already been enabled by u-boot. The or
Hi Ivan,
Ivan Mikhaylov writes:
> Prevent a kernel panic caused by unintentionally clearing TCR
> watchdog bits. At this point in the kernel boot, the watchdog has
> already been enabled by u-boot. The original code's attempt to
> write to the TCR register results in an inadvertent clearing of
Provide an implementation of the callback
rtc_class_ops.alarm_irq_enable callback for rtc-opal driver. This
callback is called when the wake alarm is disabled via the command:
'echo 0 > /sys/class/rtc/rtc0/wakealarm'
Without this the Timed-Power-On(TPO) config remains set even when its
disabled b
On PowerNV platform when Timed-Power-On(TPO) is disabled, read of
stored TPO yields value with all date components set to '0' inside
opal_get_tpo_time(). The function opal_to_tm() then converts it to an
offset from year 1900 yielding alarm-time == "1900-00-01
00:00:00". This causes problems with __
Michael Ellerman writes:
> Pavel Machek writes:
>
>> On Wed 2017-05-17 14:37:17, Andrew Morton wrote:
>>> On Wed, 17 May 2017 14:06:13 +0200 Pavel Machek wrote:
>>>
>>> > On Sun 2017-04-02 12:05:36, Pavel Machek wrote:
>>> > > Fix overlapping NAND partitions.
>>> > >
>>> > > Signed-off-by: Pa
Arnd Bergmann writes:
> On Thu, May 18, 2017 at 7:36 AM, Michael Ellerman wrote:
>> Borislav Petkov writes:
>>
>>> Top-posting so that the PPC list can see the whole patch below.
>>>
>>> Since I don't know PPC, let me add PPC ML to CC for a confirmation this
>>> change is correct.
>>>
>>> Which
On Thu, 2017-05-18 at 10:37:31 UTC, Michael Ellerman wrote:
> virt_addr_valid() is supposed to tell you if it's OK to call virt_to_page() on
> an address. What this means in practice is that it should only return true for
> addresses in the linear mapping which are backed by a valid PFN.
>
> We ar
Hi Linus,
Please pull some powerpc fixes for 4.12:
The following changes since commit 2ea659a9ef488125eb46da6eb571de5eae5c43f6:
Linux 4.12-rc1 (2017-05-13 13:19:49 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
tags/powerpc-4
Current largesend and checksum offload feature in ibmveth driver,
- Source VM sends the TCP packets with ip_summed field set as
CHECKSUM_PARTIAL and TCP pseudo header checksum is placed in
checksum field
- CHECKSUM_PARTIAL flag in SKB will enable ibmveth driver to mark
"no checksum" and
Hi!
> > Well... two partitions at same place. If you use one, you will corrupt
> > information on the other one.
> >
> > OTOH this moves partition around (so that they don't overlap) so it is
> > probably not stable candidate.
> >
> > I guess this is not huge issue; people using these boards proba
On 18/05/2017 20:48, Paolo Bonzini wrote:
>
>
> On 18/05/2017 20:19, Naveen N. Rao wrote:
>> Paolo Bonzini wrote:
>>> The ARM and x86 architectures already use libdw, and it is useful to
>>> have as much common code for the unwinder as possible. Porting PPC
>>> to libdw only needs an architect
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