Some of the interrupt vectors on 64-bit POWER server processors are
only 32 bytes long (8 instructions), which is not enough for the full
first-level interrupt handler. For these we need to branch to an out-
of-line (OOL) handler. But when we are running a relocatable kernel,
interrupt vectors til
Em Sat, Mar 26, 2016 at 11:01:47AM -0700, Sukadev Bhattiprolu escreveu:
> From 502e8236082412db1d33abfad95aaf14b539502e Mon Sep 17 00:00:00 2001
> From: Sukadev Bhattiprolu
> Date: Sat, 26 Mar 2016 17:31:39 -0400
> Subject: [PATCH 1/1] perf tools: Fix build break on powerpc
> MIME-Version: 1.0
> C
Em Sun, Mar 27, 2016 at 01:19:03PM +0200, Jiri Olsa escreveu:
> On Sat, Mar 26, 2016 at 11:01:47AM -0700, Sukadev Bhattiprolu wrote:
> > From 502e8236082412db1d33abfad95aaf14b539502e Mon Sep 17 00:00:00 2001
> > From: Sukadev Bhattiprolu
> > Date: Sat, 26 Mar 2016 17:31:39 -0400
> > Subject: [PATC
On 03/25/2016 06:33 AM, Michael Ellerman wrote:
Hi Guilherme,
Some comments below ...
Hi Michael, thanks for the comments.
+/* For dynamic PHB numbering on get_phb_number(): max number of PHBs. */
+#defineMAX_PHBS8192
Did we just make that up? It seems like a lot, but then
Em Mon, Mar 28, 2016 at 09:35:31AM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Sun, Mar 27, 2016 at 01:19:03PM +0200, Jiri Olsa escreveu:
> > On Sat, Mar 26, 2016 at 11:01:47AM -0700, Sukadev Bhattiprolu wrote:
> > > From 502e8236082412db1d33abfad95aaf14b539502e Mon Sep 17 00:00:00 2001
> > > Fr
Em Mon, Mar 28, 2016 at 10:21:45AM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Mon, Mar 28, 2016 at 09:35:31AM -0300, Arnaldo Carvalho de Melo escreveu:
> > Em Sun, Mar 27, 2016 at 01:19:03PM +0200, Jiri Olsa escreveu:
> > > On Sat, Mar 26, 2016 at 11:01:47AM -0700, Sukadev Bhattiprolu wrote:
>
Michael Ellerman writes:
> [ text/plain ]
> On Fri, 2016-18-03 at 04:01:21 UTC, Andrew Donnellan wrote:
>> When handling page faults, cxl_handle_page_fault() checks whether the page
>> should be accessible by userspace and have its _PAGE_USER access bit set.
>> _PAGE_USER should be set if the con
Gavin Shan writes:
> [ text/plain ]
> On Sat, Mar 26, 2016 at 08:47:17PM +1100, Michael Ellerman wrote:
>>Hi Gavin,
>>
>>On Fri, 2016-25-03 at 16:05:29 UTC, Gavin Shan wrote:
>>> During deferred page initialization, the pages are moved from memblock
>>> or bootmem to buddy allocator without check
On 03/27/2016 05:08 PM, Paul Gortmaker wrote:
> The Makefile/Kconfig currently controlling compilation of this code is:
>
> obj-$(CONFIG_PPC64) += setup_64.o sys_ppc32.o \
>signal_64.o ptrace32.o \
>paca.o nvram_64
kbuild test robot writes:
> [ text/plain ]
> Hi Aneesh,
>
> [auto build test ERROR on powerpc/next]
> [also build test ERROR on v4.6-rc1 next-20160324]
> [if your patch is applied to the wrong git tree, please drop us a note to
> help improving the system]
>
> url:
> https://github.com/0day-
"Aneesh Kumar K.V" writes:
> [ text/plain ]
> Michael Ellerman writes:
>
>> [ text/plain ]
>> On Fri, 2016-18-03 at 04:01:21 UTC, Andrew Donnellan wrote:
>>> When handling page faults, cxl_handle_page_fault() checks whether the page
>>> should be accessible by userspace and have its _PAGE_USER a
On Fri, Mar 18, 2016 at 11:00 AM, Sinan Kaya wrote:
> On 3/18/2016 8:12 AM, Robin Murphy wrote:
>> Since we know for sure that swiotlb_to_phys is a no-op on arm64, it might be
>> cleaner to simply not reference it at all. I suppose we could have some
>> private local wrappers, e.g.:
>>
>> #defin
Fixes the following testsuite failure:
$ sudo ./perf test -v kallsyms
1: vmlinux symtab matches kallsyms :
--- start ---
test child forked, pid 12489
Using /proc/kcore for kernel object code
Looking at the vmlinux_path (8 entries long)
Using /boot/vmlinux for symbols
0xc0
Am Montag, 28 März 2016, 17:06:32 schrieb Thiago Jung Bauermann:
> /home/bauermann/src/linux/tools/testing/selftests/ftrace/test.d/kprobe/kp
> robe_ftrace.tc: line 9: echo: write error: Invalid argument
>
> But even without my patch that testcase fails in the same way, so this
> is not a probl
On Mon, 2016-03-28 at 17:29 -0300, Thiago Jung Bauermann wrote:
> Am Montag, 28 März 2016, 17:06:32 schrieb Thiago Jung Bauermann:
> > /home/bauermann/src/linux/tools/testing/selftests/ftrace/test.d/kprobe/kp
> > robe_ftrace.tc: line 9: echo: write error: Invalid argument
> >
> > But even wit
On Sun, Mar 27, 2016 at 12:37:09AM +1100, Gavin Shan wrote:
>On Sat, Mar 26, 2016 at 08:47:17PM +1100, Michael Ellerman wrote:
>>Hi Gavin,
>>
>>On Fri, 2016-25-03 at 16:05:29 UTC, Gavin Shan wrote:
>>> During deferred page initialization, the pages are moved from memblock
>>> or bootmem to buddy al
On 24/03/16 22:04, Michael Ellerman wrote:
> In order to support live patching we need to maintain an alternate
> stack of TOC & LR values. We use the base of the stack for this, and
> store the "live patch stack pointer" in struct thread_info.
>
> Unlike the other fields of thread_info, we can n
> "Uma" == Uma Krishnan writes:
Hey Uma,
Uma> This series has a couple of patches in cxlflash. The first patch
Uma> is critical as it fixes a regression that was introduced by Commit
Uma> 6ded8b3cbd9a ("cxlflash: Unmap problem state area before detaching
Uma> master context") as part of the
Useful to be able to dump the kernels page tables to check permissions
and memory types - derived from arm64's implementation.
Add a debugfs file to check the page tables. To use this the PPC_PTDUMP
config option must be selected.
Signed-off-by: Rashmica Gupta
---
Do not check for COMBO pages if
Useful to be able to dump the kernel hash page table to check
which pages are hashed along with their sizes and other details.
Add a debugfs file to check the page tables. To use this the PPC_PTDUMP
config option must be selected.
Signed-off-by: Rashmica Gupta
---
arch/powerpc/mm/Makefile
The RTAS calls configure-pe and configure-bridge perform the same
actions, however the former can skip configuration if unnecessary. The
existing code treats them as different tokens even though only one will
ever be called. Refactor this by making a single token that is assigned
during init.
Cc
In the configure_pe and configure_bridge RTAS calls, the spec states
that values of 9900-9905 can be returned, indicating that software
should delay for 10^x (where x is the last digit, i.e. 990x)
milliseconds and attempt the call again. Currently, the kernel doesn't
know about this, and respecting
On Mon, 2016-03-28 at 17:06 -0300, Thiago Jung Bauermann wrote:
> Fixes the following testsuite failure:
>
> $ sudo ./perf test -v kallsyms
> 1: vmlinux symtab matches kallsyms :
> --- start ---
> test child forked, pid 12489
> Using /proc/kcore for kernel object code
>
A problem is found by back porting page parallel initialisation for RHEL7.2.
And CONFIG_NO_BOOTMEM = n. If kernel old version with page parallel needs
to work well, it still needs to fix with BOOTMEM as this patch looks like.
There are some potential bugs with page parallel in RHEL7.2. I will cont
On Tue, 2016-03-29 at 10:58 +1100, Balbir Singh wrote:
> On 24/03/16 22:04, Michael Ellerman wrote:
> > diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
> > index 290559df1e8b..3cb46a3b1de7 100644
> > --- a/arch/powerpc/kernel/irq.c
> > +++ b/arch/powerpc/kernel/irq.c
> > @@ -66,6
On Tue, Mar 29, 2016 at 12:51:50PM +1000, Russell Currey wrote:
>The RTAS calls configure-pe and configure-bridge perform the same
>actions, however the former can skip configuration if unnecessary. The
>existing code treats them as different tokens even though only one will
>ever be called. Refa
On Thu, 2016-03-24 at 14:42 +0100, Torsten Duwe wrote:
> On Thu, Mar 24, 2016 at 10:04:05PM +1100, Michael Ellerman wrote:
> > +livepatch_handler:
> > + CURRENT_THREAD_INFO(r12, r1)
> [...]
> > + /* Put ctr in r12 for global entry and branch there */
> > + mfctr r12
> > + bctrl
>
>> At this point ti->livepatch_sp points to the next CPUs thread_info for
>> softirq_ctx?
> Sorry I'm not sure what you mean.
>
> None of this relates to the current CPUs thread info.
Oh! I meant that klp_init_thread_info points to the end of (struct thread_info
{} + 1) in the stack of the threa
On Tue, 2016-03-29 at 16:26 +1100, Gavin Shan wrote:
> On Tue, Mar 29, 2016 at 12:51:50PM +1000, Russell Currey wrote:
> > /*
> > * Necessary sanity check. We needn't check "get-config-addr-info"
> > @@ -93,8 +98,7 @@ static int pseries_eeh_init(void)
> > (ibm_read_slot_reset_stat
qe_ic was put in drivers/soc/fsl/qe, but it should be in
drivers/irqchip.
Signed-off-by: Zhao Qiang
---
drivers/irqchip/Makefile| 1 +
drivers/{soc/fsl/qe => irqchip}/qe_ic.c | 0
drivers/{soc/fsl/qe => irqchip}/qe_ic.h | 0
drivers/soc/fsl/qe/Makefile | 2 +-
4 files
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