Hi Linus,
Please pull powerpc fixes for 4.1:
The following changes since commit d19d5efd8c8840aa4f38a6dfbfe500d8cc27de46:
Merge tag 'powerpc-4.1-1' of
git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux (2015-04-16 13:53:32
-0500)
are available in the git repository at:
git://git.ker
Hi Nikunj,
On Wed, 22 Apr 2015 16:27:20 +0530
Nikunj A Dadhania wrote:
> PCI Enumeration has been part of SLOF. Now with hotplug code addition
> in Qemu, it makes more sense to have this code a one place, i.e. Qemu.
s/Qemu/QEMU/ and s/code a one place/code in one place/ ?
> Adding routines t
This patchset enables running KVM SMP guests with external interrupts on an
underlying RT-enabled Linux. Previous to this patch, a guest with in-kernel MPIC
emulation could easily panic the kernel due to preemption when delivering IPIs
and external interrupts, because of the openpic spinlock becomi
While converting the openpic emulation code to use a raw_spinlock_t enables
guests to run on RT, there's still a performance issue. For interrupts sent in
directed delivery mode with a multiple CPU mask, the emulated openpic will loop
through all of the VCPUs, and for each VCPUs, it call IRQ_check,
The lock in the KVM openpic emulation on PPC is a spinlock_t, meaning it becomes
a sleeping mutex under PREEMPT_RT_FULL. This yields to a situation where this
non-raw lock is grabbed with interrupts already disabled by hard_irq_disable():
kvmppc_prepare_to_enter()
hard_irq_disable()
kvmppc_cor
On Fri, 24 Apr 2015 14:24:44 +0530
"Naveen N. Rao" wrote:
> Add a new powerpc-specific trace clock using the timebase register,
> similar to x86-tsc. This gives us
> - a fast, monotonic, hardware clock source for trace entries, and
> - a clock that can be used to correlate events across cpus as w
On Thu, Apr 23, 2015 at 02:11:47PM +0200, Christophe Leroy wrote:
> devm_ioremap_resource() doesn't return NULL but an ERR_PTR on error.
Applied, thanks.
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On Fri, 24 Apr 2015 12:56:57 +0200
Thomas Huth wrote:
> On Fri, 24 Apr 2015 09:22:33 +0530
> Nikunj A Dadhania wrote:
>
> >
> > Hi Thomas,
> >
> > Thomas Huth writes:
> > > Am Wed, 22 Apr 2015 16:27:19 +0530
> > > schrieb Nikunj A Dadhania :
> > >
> > >> With the addition of 64-bit BARS and
On Fri, 24 Apr 2015 09:22:33 +0530
Nikunj A Dadhania wrote:
>
> Hi Thomas,
>
> Thomas Huth writes:
> > Am Wed, 22 Apr 2015 16:27:19 +0530
> > schrieb Nikunj A Dadhania :
> >
> >> With the addition of 64-bit BARS and increase in the mmio address
> >> space, the code was hitting this limit. The
On Fri, 24 Apr 2015 14:18:30 +1000
Stewart Smith wrote:
> Jacek Anaszewski writes:
> >> These device tree comes from out firmware ... which is immutable .
> >
> > How the firmware is related to kernel? These bindings are for
> > kernel, not for the firmware.
> >
> > DT bindings are compiled to *
On Fri, 24 Apr 2015 11:00:41 +0530
Hi Vasant,
Vasant Hegde wrote:
> On 04/23/2015 07:43 PM, Jacek Anaszewski wrote:
> > On Thu, 23 Apr 2015 10:55:40 +0530
> > Vasant Hegde wrote:
> >
>
> Hi Jacek,
>
> .../...
>
> >>
> >> These device tree comes from out firmware ... which is immutable .
> >
Add a new powerpc-specific trace clock using the timebase register,
similar to x86-tsc. This gives us
- a fast, monotonic, hardware clock source for trace entries, and
- a clock that can be used to correlate events across cpus as well as across
hypervisor and guests.
Signed-off-by: Naveen N. Rao
On 2015/04/23 09:10AM, Steven Rostedt wrote:
> On Thu, 23 Apr 2015 12:15:04 +0530
> "Naveen N. Rao" wrote:
>
> > diff --git a/arch/powerpc/include/asm/trace_clock.h
> > b/arch/powerpc/include/asm/trace_clock.h
> > new file mode 100644
> > index 000..0b0d094
> > --- /dev/null
> > +++ b/arch/p
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