Le 24/11/2021 à 23:34, Michael Ellerman a écrit :
Christophe Leroy writes:
This series implements livepatch on PPC32.
This is largely copied from what's done on PPC64.
Christophe Leroy (5):
livepatch: Fix build failure on 32 bits processors
powerpc/ftrace: No need to read LR from sta
On 2021-11-24 22:57:13 Wed, Oliver O'Halloran wrote:
> On Wed, Nov 24, 2021 at 7:45 PM Mahesh J Salgaonkar
> wrote:
> >
> > No it doesn't. We will still do a presence check before the recovery
> > process starts. This patch moves the check after notifying the driver to
> > stop active I/O operatio
Hi there,
I have bisected OpenWrt master, and then the Linux kernel down to this
change, to confirm that this change causes a kernel panic on my
P1020RDB-based, dual-core Aerohive HiveAP 370, at initialization of
the second CPU:
:
[0.00] Linux version 5.10.80 (labby@lobon)
(powerpc-openwr
Update the arch_support_sort_key() function in powerpc
to enable presenting local and global variants of sort
key: p_stage_cyc. Update the "se_header" strings for
these in arch_perf_header_entry() function along with
instruction latency.
Signed-off-by: Athira Rajeev
Reported-by: Namhyung Kim
---
Sort key p_stage_cyc is used to present the latency
cycles spend in pipeline stages. perf tool has local
p_stage_cyc sort key to display this info. There is no
global variant available for this sort key. local variant
shows latency in a sinlge sample, whereas, global value
will be useful to present
On Wed, Nov 24 2021 at 15:29, Arnd Bergmann wrote:
> On Wed, Nov 24, 2021 at 2:21 PM André Almeida
> wrote:
>>
>> Wireup futex_waitv syscall for all remaining archs.
>>
>> Signed-off-by: André Almeida
>
> Reviewed-by: Arnd Bergmann
>
> I double-checked that futex_waitv() doesn't need any archit
André Almeida writes:
> diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl
> b/arch/powerpc/kernel/syscalls/syscall.tbl
> index 7bef917cc84e..15109af9d075 100644
> --- a/arch/powerpc/kernel/syscalls/syscall.tbl
> +++ b/arch/powerpc/kernel/syscalls/syscall.tbl
> @@ -528,3 +528,4 @@
> 446 comm
Christophe Leroy writes:
> This series implements livepatch on PPC32.
>
> This is largely copied from what's done on PPC64.
>
> Christophe Leroy (5):
> livepatch: Fix build failure on 32 bits processors
> powerpc/ftrace: No need to read LR from stack in _mcount()
> powerpc/ftrace: Add module
Le 24/11/2021 à 14:40, Christophe Leroy a écrit :
Le 24/11/2021 à 14:21, Nicholas Piggin a écrit :
Excerpts from Christophe Leroy's message of November 22, 2021 6:48 pm:
This series converts powerpc to default topdown mmap layout.
powerpc provides its own arch_get_unmapped_area() only whe
On Wed, Nov 24, 2021 at 5:21 AM André Almeida wrote:
>
> Wireup futex_waitv syscall for all remaining archs.
>
> Signed-off-by: André Almeida
> ---
> arch/alpha/kernel/syscalls/syscall.tbl | 1 +
> arch/ia64/kernel/syscalls/syscall.tbl | 1 +
> arch/m68k/kernel/syscalls/syscall.tbl
On 11/18/21 1:12 PM, Rob Herring wrote:
> The early FDT scanning functions use of_scan_flat_dt() which implements
> its own node walking method. This function predates libfdt and is an
> unnecessary indirection. This series reworks
> early_init_dt_scan_chosen(), early_init_dt_scan_root(), and
>
On 11/18/21 1:12 PM, Rob Herring wrote:
> Use of the of_scan_flat_dt() function predates libfdt and is discouraged
> as libfdt provides a nicer set of APIs. Rework
> early_init_dt_scan_memory() to be called directly and use libfdt.
>
> Cc: John Crispin
> Cc: Thomas Bogendoerfer
> Cc: Michael Ell
On 11/18/21 1:12 PM, Rob Herring wrote:
> Use of the of_scan_flat_dt() function predates libfdt and is discouraged
> as libfdt provides a nicer set of APIs. Rework early_init_dt_scan_root()
> to be called directly and use libfdt.
>
> Cc: Michael Ellerman
> Cc: Benjamin Herrenschmidt
> Cc: Paul M
On 11/18/21 1:12 PM, Rob Herring wrote:
> Use of the of_scan_flat_dt() function predates libfdt and is discouraged
> as libfdt provides a nicer set of APIs. Rework
> early_init_dt_scan_chosen() to be called directly and use libfdt.
>
> Cc: Michael Ellerman
> Cc: Benjamin Herrenschmidt
> Cc: Paul
Às 11:29 de 24/11/21, Arnd Bergmann escreveu:
> On Wed, Nov 24, 2021 at 2:21 PM André Almeida
> wrote:
>>
>> Wireup futex_waitv syscall for all remaining archs.
>>
>> Signed-off-by: André Almeida
>
> Reviewed-by: Arnd Bergmann
>
> I double-checked that futex_waitv() doesn't need any architect
Looks like recent binutils (2.36 and over ?) may empty some section,
leading to failure like:
Cannot find symbol for section 11: .text.unlikely.
kernel/kexec_file.o: failed
make[1]: *** [scripts/Makefile.build:287: kernel/kexec_file.o] Error 1
In order to avoid that, ensur
On Wed, Nov 24, 2021 at 2:21 PM André Almeida wrote:
>
> Wireup futex_waitv syscall for all remaining archs.
>
> Signed-off-by: André Almeida
Reviewed-by: Arnd Bergmann
I double-checked that futex_waitv() doesn't need any architecture specific
hacks, and that the list above is complete.
Shoul
On Wed, Nov 24, 2021 at 2:21 PM André Almeida wrote:
> Wireup futex_waitv syscall for all remaining archs.
>
> Signed-off-by: André Almeida
> arch/m68k/kernel/syscalls/syscall.tbl | 1 +
Acked-by: Geert Uytterhoeven
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeve
Le 24/11/2021 à 13:10, Christophe Leroy a écrit :
Le 22/11/2021 à 15:48, kernel test robot a écrit :
Hi Christophe,
I love your patch! Perhaps something to improve:
[auto build test WARNING on powerpc/next]
[also build test WARNING on hnaz-mm/master linus/master v5.16-rc2
next-2028]
Wireup futex_waitv syscall for all remaining archs.
Signed-off-by: André Almeida
---
arch/alpha/kernel/syscalls/syscall.tbl | 1 +
arch/ia64/kernel/syscalls/syscall.tbl | 1 +
arch/m68k/kernel/syscalls/syscall.tbl | 1 +
arch/microblaze/kernel/syscalls/syscall.tbl | 1 +
arch/po
On Wed, Nov 24, 2021 at 10:44:09AM +0100, Jan Kara wrote:
> On Tue 23-11-21 12:24:20, Luis Chamberlain wrote:
> > From: Xiaoming Ni
> >
> > There is no need to user boiler plate code to specify a set of base
> > directories we're going to stuff sysctls under. Simplify this by using
> > register_s
Le 24/11/2021 à 14:21, Nicholas Piggin a écrit :
Excerpts from Christophe Leroy's message of November 22, 2021 6:48 pm:
This series converts powerpc to default topdown mmap layout.
powerpc provides its own arch_get_unmapped_area() only when
slices are needed, which is only for book3s/64. Fir
On Wed, Nov 24, 2021 at 08:10:10AM -0500, Mimi Zohar wrote:
> On Wed, 2021-11-24 at 12:09 +0100, Philipp Rudo wrote:
> > Now Michal wants to adapt KEXEC_SIG for ppc too so distros can rely on all
> > architectures using the same mechanism and thus reduce maintenance cost.
> > On the way there he ev
Excerpts from Christophe Leroy's message of November 22, 2021 6:48 pm:
> This series converts powerpc to default topdown mmap layout.
>
> powerpc provides its own arch_get_unmapped_area() only when
> slices are needed, which is only for book3s/64. First part of
> the series moves slices into book3
From: Eric W. Biederman
commit 83a1f27ad773b1d8f0460d3a676114c7651918cc upstream.
If the register state may be partial and corrupted instead of calling
do_exit, call force_sigsegv(SIGSEGV). Which properly kills the
process with SIGSEGV and does not let any more userspace code execute,
instead o
Excerpts from Ganesh Goudar's message of November 24, 2021 7:55 pm:
> Now that we are no longer switching on the mmu in realmode
> mce handler, Revert the commit 4ff753feab02("powerpc/pseries:
> Avoid using addr_to_pfn in real mode") partially, which
> introduced functions mce_handle_err_virtmode/r
On Wed, 2021-11-24 at 12:09 +0100, Philipp Rudo wrote:
> Now Michal wants to adapt KEXEC_SIG for ppc too so distros can rely on all
> architectures using the same mechanism and thus reduce maintenance cost.
> On the way there he even makes some absolutely reasonable improvements
> for everybody.
>
Excerpts from Ganesh Goudar's message of November 24, 2021 7:54 pm:
> In realmode mce handler we use irq_work_queue() to defer
> the processing of mce events, irq_work_queue() can only
> be called when translation is enabled because it touches
> memory outside RMA, hence we enable translation befor
Le 22/11/2021 à 22:10, kernel test robot a écrit :
Hi Christophe,
I love your patch! Yet something to improve:
[auto build test ERROR on powerpc/next]
[also build test ERROR on hnaz-mm/master linus/master v5.16-rc2 next-2028]
[If your patch is applied to the wrong git tree, kindly drop u
Le 22/11/2021 à 15:48, kernel test robot a écrit :
Hi Christophe,
I love your patch! Perhaps something to improve:
[auto build test WARNING on powerpc/next]
[also build test WARNING on hnaz-mm/master linus/master v5.16-rc2 next-2028]
[If your patch is applied to the wrong git tree, kindl
On Wed, Nov 24, 2021 at 12:05 AM Mahesh Salgaonkar wrote:
>
> *snip*
>
> This causes the EEH handler to get stuck for ~6
> seconds before it could notify that the pci error has been detected and
> stop any active operations. Hence with running I/O traffic, during this 6
> seconds, the network driv
On Wed, Nov 24, 2021 at 7:45 PM Mahesh J Salgaonkar
wrote:
>
> No it doesn't. We will still do a presence check before the recovery
> process starts. This patch moves the check after notifying the driver to
> stop active I/O operations. If a presence check finds the device isn't
> present, we will
Hi Mimi,
On Fri, 19 Nov 2021 13:16:20 -0500
Mimi Zohar wrote:
> On Fri, 2021-11-19 at 12:18 +0100, Michal Suchánek wrote:
> > Maybe I was not clear enough. If you happen to focus on an architecture
> > that supports IMA fully it's great.
> >
> > My point of view is maintaining multiple architec
In realmode mce handler we use irq_work_queue() to defer
the processing of mce events, irq_work_queue() can only
be called when translation is enabled because it touches
memory outside RMA, hence we enable translation before
calling irq_work_queue and disable on return, though it
is not safe to do
Now that we are no longer switching on the mmu in realmode
mce handler, Revert the commit 4ff753feab02("powerpc/pseries:
Avoid using addr_to_pfn in real mode") partially, which
introduced functions mce_handle_err_virtmode/realmode() to
separate mce handler code which needed translation to enabled.
On Tue 23-11-21 12:24:18, Luis Chamberlain wrote:
> There is no need to user boiler plate code to specify a set of base
> directories we're going to stuff sysctls under. Simplify this by using
> register_sysctl() and specifying the directory path directly.
>
> // pycocci sysctl-subdir-register-sys
On Tue 23-11-21 12:24:20, Luis Chamberlain wrote:
> From: Xiaoming Ni
>
> There is no need to user boiler plate code to specify a set of base
> directories we're going to stuff sysctls under. Simplify this by using
> register_sysctl() and specifying the directory path directly.
>
> Move inotify_
Prior to commit b1923caa6e64 ("powerpc: Merge 32-bit and 64-bit
setup_arch()") probe_machine() was called from setup_32/64.c and lived
in setup-common.c. But now it's only called from setup-common.c so it
can be static and __init, and we don't need the declaration in
machdep.h either.
Signed-off-b
setup_profiling_timer() is only needed when CONFIG_PROFILING is enabled.
Fixes the following W=1 warning when CONFIG_PROFILING=n:
linux/arch/powerpc/kernel/smp.c:1638:5: error: no previous prototype for
‘setup_profiling_timer’
Signed-off-by: Michael Ellerman
---
arch/powerpc/kernel/smp.c | 2
Building with W=1 we see a warning:
linux/arch/powerpc/mm/nohash/fsl_book3e.c:63:15: error: no previous prototype
for ‘tlbcam_sz’
tlbcam_sz() is not used outside this file, so we can make it static.
However it's only used inside #ifdef CONFIG_PPC32, so move it within
that ifdef, otherwise we wo
To fix the W=1 warning:
linux/arch/powerpc/platforms/85xx/c293pcie.c:22:13: error: no previous
prototype for ‘c293_pcie_pic_init’
Signed-off-by: Michael Ellerman
---
arch/powerpc/platforms/85xx/c293pcie.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platfor
Fixes the following W=1 warning:
arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c:89:12: warning: no previous
prototype for 'mpc85xx_setup_pmc'
Reported-by: kernel test robot
Signed-off-by: Michael Ellerman
---
arch/powerpc/platforms/85xx/mpc85xx_pm_ops.c | 2 ++
1 file changed, 2 insertions(+)
To fix the W=1 warning:
arch/powerpc/platforms/85xx/smp.c:369:6: error: no previous prototype for
‘mpc85xx_smp_kexec_cpu_down’
Signed-off-by: Michael Ellerman
---
arch/powerpc/platforms/85xx/smp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/8
Hi Ganesh,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on powerpc/next]
[also build test ERROR on v5.16-rc2 next-20211124]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as doc
On 2021-11-24 10:14:30 Wed, Michael Ellerman wrote:
> Mahesh Salgaonkar writes:
> > When certain PHB HW failure causes phyp to recover PHB, it marks the PE
> > state as temporarily unavailable until recovery is complete. This also
> > triggers an EEH handler in Linux which needs to notify drivers,
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