As reported[1] by Nathan, the recently added plpks driver will crash if
it's built into the kernel and booted on a non-pseries machine, eg
powernv:
kernel BUG at arch/powerpc/kernel/syscall.c:39!
Oops: Exception in kernel mode, sig: 5 [#1]
LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA Pow
When building with W=1 you get:
arch/powerpc/math-emu/fre.c:6:5: error: no previous prototype for 'fre'
[-Werror=missing-prototypes]
arch/powerpc/math-emu/fsqrt.c:11:1: error: no previous prototype for
'fsqrt' [-Werror=missing-prototypes]
arch/powerpc/math-emu/fsqrts.c:12
Le 07/09/2022 à 06:36, Nicholas Piggin a écrit :
> On Sat Sep 3, 2022 at 1:25 AM AEST, Christophe Leroy wrote:
>> With recent binutils, the following warning appears:
>>
>>VDSO32L arch/powerpc/kernel/vdso/vdso32.so.dbg
>> /opt/gcc-12.2.0-nolibc/powerpc64-linux/bin/../lib/gcc/powerpc64-linux/1
On 9/7/22 12:37 AM, Yang Shi wrote:
> On Mon, Sep 5, 2022 at 1:56 AM Aneesh Kumar K.V
> wrote:
>>
>> Yang Shi writes:
>>
>>>
>>> On Fri, Sep 2, 2022 at 9:00 AM Peter Xu wrote:
On Thu, Sep 01, 2022 at 04:50:45PM -0700, Yang Shi wrote:
> On Thu, Sep 1, 2022 at 4:26 PM Peter Xu wrote
On Sat Sep 3, 2022 at 1:25 AM AEST, Christophe Leroy wrote:
> With recent binutils, the following warning appears:
>
> VDSO32L arch/powerpc/kernel/vdso/vdso32.so.dbg
> /opt/gcc-12.2.0-nolibc/powerpc64-linux/bin/../lib/gcc/powerpc64-linux/12.2.0/../../../../powerpc64-linux/bin/ld:
> warning: arch
On Mon Sep 5, 2022 at 7:38 PM AEST, Christophe Leroy wrote:
> update_mmu_cache() voids when hash page tables are not used.
> On PPC32 that means when MMU_FTR_HPTE_TABLE is not defined.
> On PPC64 that means when RADIX is enabled.
>
> Rename core part of update_mmu_cache() as __update_mmu_cache()
>
Hi All,
I use the Nemo board with a PASemi PA6T CPU and some values of lscpu are wrong
since the RC1 of kernel 6.0.
┌──(mintppc㉿mintppc)-[~]
└─$ lscpu
Architecture:ppc64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Big Endian
CPU(s):
On Tue Sep 6, 2022 at 4:36 AM AEST, Christophe Leroy wrote:
>
>
> Le 05/09/2022 à 10:50, Nicholas Piggin a écrit :
> > The page table fragment allocator is a simple per-mm slab allocator.
> > It can be quite wasteful of space for small processes, as well as being
> > expensive to initialise. It do
On Mon Sep 5, 2022 at 4:38 PM AEST, Ganesh Goudar wrote:
> Part of machine check error handling is done in realmode,
> As of now instrumentation is not possible for any code that
> runs in realmode.
> When MCE is injected on KASAN enabled kernel, crash is
> observed, Hence force inline or mark no i
tfsb1'
[-Werror=missing-prototypes]
arch/powerpc/math-emu/mtfsf.c:10:1: error: no previous prototype for 'mtfsf'
[-Werror=missing-prototypes]
arch/powerpc/math-emu/mtfsfi.c:10:1: error: no previous prototype for 'mtfsfi'
[-Werror=missing-prototypes]
arch/powerpc/math
been built successfully.
More configs may be tested in the coming days.
gcc tested configs:
um i386_defconfig
um x86_64_defconfig
arc randconfig-r043-20220906
riscvrandconfig-r042-202209
Masahiro Yamada writes:
> On Tue, Aug 2, 2022 at 10:53 AM Miguel Ojeda wrote:
>>
>> Having all the new files in place, we now enable Rust support
>> in the build system, including `Kconfig` entries related to Rust,
>> the Rust configuration printer, the target specification
>> generation script,
On Wed, Sep 07, 2022 at 09:23:02AM +1000, Michael Ellerman wrote:
> Nathan Chancellor writes:
> > Hi all,
> >
> > On Sat, Jul 23, 2022 at 07:30:46AM -0400, Nayna Jain wrote:
> >> PowerVM provides an isolated Platform Keystore(PKS) storage allocation
> >> for each LPAR with individually managed acc
Nathan Chancellor writes:
> Hi all,
>
> On Sat, Jul 23, 2022 at 07:30:46AM -0400, Nayna Jain wrote:
>> PowerVM provides an isolated Platform Keystore(PKS) storage allocation
>> for each LPAR with individually managed access controls to store
>> sensitive information securely. It provides a new set
This commit remmove redundant space in arch/powerpc/sysdev/mmio_nvram.c
Signed-off-by: Jingyu Wang
---
arch/powerpc/sysdev/mmio_nvram.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/sysdev/mmio_nvram.c b/arch/powerpc/sysdev/mmio_nvram.c
index eb48210ef98e
Fix the following fallthrough warning:
arch/powerpc/platforms/85xx/mpc85xx_cds.c:161:3: warning: unannotated
fall-through between switch labels [-Wimplicit-fallthrough]
Link: https://github.com/KSPP/linux/issues/198
Reported-by: kernel test robot
Link: https://lore.kernel.org/lkml/202209061224.
Hi all,
On Sat, Jul 23, 2022 at 07:30:46AM -0400, Nayna Jain wrote:
> PowerVM provides an isolated Platform Keystore(PKS) storage allocation
> for each LPAR with individually managed access controls to store
> sensitive information securely. It provides a new set of hypervisor
> calls for Linux ke
On Tue, Sep 06, 2022 at 01:08:10PM -0700, Suren Baghdasaryan wrote:
> On Tue, Sep 6, 2022 at 12:39 PM Peter Xu wrote:
> >
> > On Thu, Sep 01, 2022 at 10:35:07AM -0700, Suren Baghdasaryan wrote:
> > > Due to the possibility of do_swap_page dropping mmap_lock, abort fault
> > > handling under VMA lo
* Suren Baghdasaryan [220906 15:01]:
> On Tue, Sep 6, 2022 at 7:27 AM Laurent Dufour wrote:
> >
> > Le 01/09/2022 à 19:34, Suren Baghdasaryan a écrit :
> > > VMA flag modifications should be done under VMA lock to prevent concurrent
> > > page fault handling in that area.
> > >
> > > Signed-off-b
On Thu, Sep 01, 2022 at 10:35:07AM -0700, Suren Baghdasaryan wrote:
> Due to the possibility of do_swap_page dropping mmap_lock, abort fault
> handling under VMA lock and retry holding mmap_lock. This can be handled
> more gracefully in the future.
>
> Signed-off-by: Suren Baghdasaryan
> ---
> m
On Thu, Aug 11, 2022 at 08:27:42PM +0200, Thomas Zimmermann wrote:
>
>
> Am 11.08.22 um 20:26 schrieb Thomas Zimmermann:
> > Hi Daniel
> >
> > Am 11.08.22 um 19:23 schrieb Daniel Vetter:
> > > On Wed, 27 Jul 2022 at 09:53, Thomas Zimmermann
> > > wrote:
> > > >
> > > > Hi
> > > >
> > > > Am 2
On Tue, Aug 2, 2022 at 10:53 AM Miguel Ojeda wrote:
>
> Having all the new files in place, we now enable Rust support
> in the build system, including `Kconfig` entries related to Rust,
> the Rust configuration printer, the target specification
> generation script, the version detection script and
On 09/05/22 06:34, Christophe Leroy wrote:
>
>
> Le 02/09/2022 à 21:03, Mike Kravetz a écrit :
> > diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
> > index fe4944f89d34..275e554dd365 100644
> > --- a/include/linux/hugetlb.h
> > +++ b/include/linux/hugetlb.h
> > @@ -264,6 +255,13 @
tree: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
next-test
head: 7611de9cd7806a9c41426d12b98cf8867263a05f
commit: 7245fc5bb7a966852d5bd7779d1f5855530b461a [26/64] powerpc/math-emu:
Remove -w build flag and fix warnings
config: powerpc-tqm8541_defconfig
compiler: powerpc
On 8/4/22 3:46 PM, Sean Anderson wrote:
> This series converts the DPAA driver to phylink.
>
> I have tried to maintain backwards compatibility with existing device
> trees whereever possible. However, one area where I was unable to
> achieve this was with QSGMII. Please refer to patch 2 for de
On 9/3/22 11:23 AM, kernel test robot wrote:
> Hi Sean,
>
> I love your patch! Yet something to improve:
>
> [auto build test ERROR on shawnguo/for-next]
> [also build test ERROR on robh/for-next clk/clk-next arm/for-next
> arm64/for-next/core rockchip/for-next soc/for-next linus/master v6.0-
Le 01/09/2022 à 19:35, Suren Baghdasaryan a écrit :
> Mark VMA as locked before copying it and when copy_vma produces a new VMA.
>
> Signed-off-by: Suren Baghdasaryan
> ---
> mm/mmap.c | 1 +
> mm/mremap.c | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/mm/mmap.c b/mm/mmap.c
> inde
Le 01/09/2022 à 19:34, Suren Baghdasaryan a écrit :
> Decisions about whether VMAs can be merged or split must be made while
> VMAs are protected from the changes which can affect that decision.
> For example, merge_vma uses vma->anon_vma in its decision whether the
> VMA can be merged. Meanwhile,
Le 01/09/2022 à 19:34, Suren Baghdasaryan a écrit :
> vma_adjust modifies a VMA and possibly its neighbors. Mark them as locked
> before making the modifications.
>
> Signed-off-by: Suren Baghdasaryan
> ---
> mm/mmap.c | 11 ++-
> 1 file changed, 10 insertions(+), 1 deletion(-)
>
> diff
Le 01/09/2022 à 19:34, Suren Baghdasaryan a écrit :
> Protect VMA from concurrent page fault handler while performing VMA
> protection policy changes.
>
> Signed-off-by: Suren Baghdasaryan
> ---
> mm/mempolicy.c | 6 +-
> 1 file changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/mm/me
Le 01/09/2022 à 19:34, Suren Baghdasaryan a écrit :
> Protect VMA from concurrent page fault handler while modifying it in
> collapse_huge_page.
Is the goal to protect changes in the anon_vma structure?
AFAICS, the vma it self is not impacted here, only the anon_vma and the
PMD/PTE are touched, a
Le 01/09/2022 à 19:34, Suren Baghdasaryan a écrit :
> Protect VMAs from concurrent page fault handler while performing
> copy_page_range for VMAs having VM_WIPEONFORK flag set.
I'm wondering why is that necessary.
The copied mm is write locked, and the destination one is not reachable.
If any othe
Le 01/09/2022 à 19:34, Suren Baghdasaryan a écrit :
> VMA flag modifications should be done under VMA lock to prevent concurrent
> page fault handling in that area.
>
> Signed-off-by: Suren Baghdasaryan
> ---
> fs/proc/task_mmu.c | 1 +
> fs/userfaultfd.c | 6 ++
> mm/madvise.c | 1 +
Le 01/09/2022 à 19:34, Suren Baghdasaryan a écrit :
> Introduce a per-VMA rw_semaphore to be used during page fault handling
> instead of mmap_lock. Because there are cases when multiple VMAs need
> to be exclusively locked during VMA tree modifications, instead of the
> usual lock/unlock patter we
Em Mon, Sep 05, 2022 at 07:49:28PM +0530, Athira Rajeev escreveu:
> The affinity code in "affinity_set" function access array
> named "sched_cpus". The size for this array is allocated in
> affinity_setup function which is nothing but value from
> get_cpu_set_size. This is used to contain the cpuma
On Tue, Sep 6, 2022 at 3:50 AM Shengjiu Wang wrote:
>> >> > + /* Wait for status of initialization for every enabled pairs */
>> >> > + do {
>> >> > + udelay(5);
>> >> > + regmap_read(asrc->regmap, REG_ASRCFG, ®);
>> >> > + reg = (reg >> ASRCFG
Christophe Leroy writes:
> Le 06/09/2022 à 03:03, Michael Ellerman a écrit :
>> Currently in pas_pci_init() a reference to the root node is leaked due
>> to a missing of_node_put(). Instead just use of_root directly.
>>
>> Note that converting to of_find_compatible_node(NULL, ...) would
>> not be
From: ye xingchen
Return the value opal_npu_spa_clear_cache() directly instead of storing
it in another redundant variable.
Reported-by: Zeal Robot
Signed-off-by: ye xingchen
---
arch/powerpc/platforms/powernv/ocxl.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/arch/
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