Fix extending start/stop topology update scope during LPM
Commit 65b9fdadfc4d ("powerpc/pseries/mobility: Extend start/stop
topology update scope") made the change to the duration that
topology updates are suppressed during LPM to allow the complete
device tree update which leaves the property up
Hello,
The following patches (submitted by you) have been updated in Patchwork:
* linuxppc-dev: crash in ppc4xx-rng on canyonland
- http://patchwork.ozlabs.org/patch/608253/
- for: Linux PPC development
was: New
now: Not Applicable
* linuxppc-dev: crash in ppc4xx-rng on canyo
As of_get_mac_address now supports NVMEM under the hood, we should
update the bindings documentation with the new nvmem-cell* properties.
While at it, fix also other missing properties supported by
of_get_mac_address.
Signed-off-by: Petr Štetiar
---
Documentation/devicetree/bindings/net/altera_t
Fix extending start/stop topology update scope during LPM
Commit 65b9fdadfc4d ("powerpc/pseries/mobility: Extend start/stop
topology update scope") made the change to the duration that
topology updates are suppressed during LPM to allow the complete
device tree update which leaves the property up
Fix extending start/stop topology update scope during LPM
Commit 65b9fdadfc4d ("powerpc/pseries/mobility: Extend start/stop
topology update scope") made the change to the duration that
topology updates are suppressed during LPM to allow the complete
device tree update which leaves the property up
Fix extending start/stop topology update scope during LPM
Commit 65b9fdadfc4d ("powerpc/pseries/mobility: Extend start/stop
topology update scope") made the change to the duration that
topology updates are suppressed during LPM to allow the complete
device tree update which leaves the property up
From: Christophe Leroy
[ Upstream commit dd9a994fc68d196a052b73747e3366c57d14a09e ]
Commit b5b4453e7912 ("powerpc/vdso64: Fix CLOCK_MONOTONIC
inconsistencies across Y2038") changed the type of wtom_clock_sec
to s64 on PPC64. Therefore, VDSO32 needs to read it with a 4 bytes
shift in order to ret
From: Christophe Leroy
[ Upstream commit dd9a994fc68d196a052b73747e3366c57d14a09e ]
Commit b5b4453e7912 ("powerpc/vdso64: Fix CLOCK_MONOTONIC
inconsistencies across Y2038") changed the type of wtom_clock_sec
to s64 on PPC64. Therefore, VDSO32 needs to read it with a 4 bytes
shift in order to ret
Michael S. Tsirkin writes:
> On Wed, Apr 24, 2019 at 10:01:56PM -0300, Thiago Jung Bauermann wrote:
>>
>> Michael S. Tsirkin writes:
>>
>> > On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung Bauermann wrote:
>> >>
>> >> Michael S. Tsirkin writes:
>> >>
>> >> > On Thu, Mar 21, 2019 at 09:0
Fix extending start/stop topology update scope during LPM
Commit 65b9fdadfc4d ("powerpc/pseries/mobility: Extend start/stop
topology update scope") made the change to the duration that
topology updates are suppressed during LPM to allow the complete
device tree update which leaves the property up
Current versions of clang does not like the %c modifier in inline
assembly for targets other than x86, so any DYNAMIC_DEBUG=y build
fails on ppc64. A fix is likely to land in 9.0 (see
https://github.com/ClangBuiltLinux/linux/issues/456), but unbreak the
build for older versions.
Fixes: powerpc: se
On Fri, Apr 26, 2019 at 05:38:50PM +0300, Serge Belyshev wrote:
> ---[ Instruction Block Address Translation ]---
> 0: 0xc000-0xc07f 0x Kernel EXEC coherent
> 1: 0xc080-0xc087 0x0080 Kernel EXEC coherent
> 2: -
> 3: -
> 4: -
> 5: -
> 6:
Reduce #ifdef mess by defining a helper to print
hash info at startup.
In the meantime, remove the display of hash table address
to reduce leak of non necessary information.
Signed-off-by: Christophe Leroy
---
v2: added header to avoid sparse warning
v3: rebased due to commit a092a03fa942 ("powe
Due to %p, (ptrval) is printed in lieu of the hash table address.
showing the hash table address isn't an operationnal need so just
don't print it.
Signed-off-by: Christophe Leroy
---
v2: no change
v3: no change
arch/powerpc/mm/ppc_mmu_32.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletion
Hash_end has never been used, drop it.
Signed-off-by: Christophe Leroy
---
v2: no change
v3: no change
arch/powerpc/mm/mmu_decl.h | 2 +-
arch/powerpc/mm/ppc_mmu_32.c | 4 +---
2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl
Le 13/03/2019 à 00:38, Daniel Axtens a écrit :
Hi Christophe,
In trying to extend my KASAN implementation to Book3S 64bit, I found one
other change needed to prom_init. I don't know if you think it should go
in this patch, the next one, or somewhere else entirely - I will leave
it up to you.
For hash32, the zero shadow page gets mapped with PAGE_READONLY instead
of PAGE_KERNEL_RO, because the PP bits don't provide a RO kernel, so
PAGE_KERNEL_RO is equivalent to PAGE_KERNEL. By using PAGE_READONLY,
the page is RO for both kernel and user, but this is not a security issue
as it contains
KASAN requires early activation of hash table, before memblock()
functions are available.
This patch implements an early hash_table statically defined in
__initdata.
During early boot, a single page table is used.
For hash32, when doing the final init, one page table is allocated
for each PGD en
For KASAN, hash table handling will be activated early for
accessing to KASAN shadow areas.
In order to avoid any modification of the hash functions while
they are still used with the early hash table, the code patching
is moved out of MMU_init_hw() and put close to the big-bang switch
to the fina
This patch adds KASAN support for PPC32. The following patch
will add an early activation of hash table for book3s. Until
then, a warning will be raised if trying to use KASAN on an
hash 6xx.
To support KASAN, this patch initialises that MMU mapings for
accessing to the KASAN shadow area defined i
All files containing functions run before kasan_early_init() is called
must have KASAN instrumentation disabled.
For those file, branch profiling also have to be disabled otherwise
each if () generates a call to ftrace_likely_update().
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/Mak
This patch prepares a shadow area for KASAN.
The shadow area will be at the top of the kernel virtual
memory space above the fixmap area and will occupy one
eighth of the total kernel virtual memory space.
Signed-off-by: Christophe Leroy
---
arch/powerpc/Kconfig.debug| 5 +
arch/po
When we add KASAN shadow area, KVIRT_TOP can't be anymore fixed
at 0xfe00.
This patch uses FIXADDR_START to define KVIRT_TOP.
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/book3s/32/pgtable.h | 13 ++---
arch/powerpc/include/asm/nohash/32/pgtable.h | 13 ++---
Since commit 400c47d81ca38 ("powerpc32: memset: only use dcbz once cache is
enabled"), memset() can be used before activation of the cache,
so no need to use memset_io() for zeroing the BSS.
Acked-by: Dmitry Vyukov
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/early_32.c | 4 ++--
1 f
In kernel/cputable.c, explicitly use memcpy() instead of *y = *x;
This will allow GCC to replace it with __memcpy() when KASAN is
selected.
Acked-by: Dmitry Vyukov
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/cputable.c | 13 ++---
arch/powerpc/kernel/prom_init.c | 10 ++
When KASAN is active, the string functions in lib/ are doing the
KASAN checks. This is too early for prom_init.
This patch implements dedicated string functions for prom_init,
which will be compiled in with KASAN disabled.
Size of prom_init before the patch:
textdata bss dec he
This patch makes CONFIG_CMDLINE defined at all time. It avoids
having to enclose related code inside #ifdef CONFIG_CMDLINE
Signed-off-by: Christophe Leroy
---
arch/powerpc/Kconfig| 6 +++---
arch/powerpc/kernel/prom_init.c | 9 +++--
2 files changed, 6 insertions(+), 9 deletions(
CONFIG_KASAN implements wrappers for memcpy() memmove() and memset()
Those wrappers are doing the verification then call respectively
__memcpy() __memmove() and __memset(). The arches are therefore
expected to rename their optimised functions that way.
For files on which KASAN is inhibited, #defin
In preparation of KASAN, move early_init() into a separate
file in order to allow deactivation of KASAN for that function.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/Makefile | 2 +-
arch/powerpc/kernel/early_32.c | 36
arch/powerpc/kernel/set
This series adds KASAN support to powerpc/32
32 bits tested on nohash/32 (8xx), book3s/32 (mpc832x ie 603) and qemu mac99
Changes in v11:
- Dropped book3e RFC part.
- Rebased on latest powerpc merge branch
(b251649c77625b7ad4430e518dc0f1608be9edf4).
Main impact is in head_32.S do to the merge wi
pgd_alloc() and pgd_free() are identical on nohash 32 and 64.
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/nohash/32/pgalloc.h | 11 ---
arch/powerpc/include/asm/nohash/64/pgalloc.h | 11 ---
arch/powerpc/include/asm/nohash/pgalloc.h
pmd_pgtable() is identical on the 4 subarches, refactor it.
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/book3s/32/pgalloc.h | 2 --
arch/powerpc/include/asm/book3s/64/pgalloc.h | 5 -
arch/powerpc/include/asm/nohash/32/pgalloc.h | 2 --
arch/po
pgtable_free() and others are identical on nohash/32 and 64,
so move them into asm/nohash/pgalloc.h
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/nohash/32/pgalloc.h | 43 ---
arch/powerpc/include/asm/nohash/64/pgalloc.h | 43
Use IS_ENABLED(CONFIG_BOOKE) to make single versions of
pmd_populate() and pmd_populate_kernel()
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/nohash/32/pgalloc.h | 28
1 file changed, 8 insertions(+), 20 deletions(-)
di
pgtable_cache[] is the same for the 4 subarches, lets make it common.
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/book3s/32/pgalloc.h | 21 -
arch/powerpc/include/asm/book3s/64/pgalloc.h | 22 --
arch/powerpc
Functions pte_alloc_one(), pte_alloc_one_kernel(), pte_free(),
pte_free_kernel() are identical for the four subarches.
This patch moves their definition in a common place.
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/book3s/32/pgalloc.h | 25 --
pte_alloc_one_kernel() and pte_alloc_one() are simple calls to
pte_fragment_alloc(), so they are good candidates for inlining as
already done on PPC64.
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/book3s/32/pgalloc.h | 15 ---
arch/power
In the same way as PPC64, implement early allocation functions and
avoid calling pte_alloc_kernel() before slab is available.
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/mm/pgtable_32.c | 34 --
1 file changed, 28 insertions(+),
Those files have no real added values, especially the 64 bit
which only includes the common book3e mmu.h which is also
included from 32 bits side.
So lets do the final inclusion directly from nohash/mmu.h
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/as
Lets select PPC_MM_SLICES from the subarch config item instead of
doing it via defaults declaration in the PPC_MM_SLICES item itself.
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/platforms/Kconfig.cputype | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-
early_alloc_pgtable() is only used during init.
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/mm/pgtable-book3e.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/mm/pgtable-book3e.c b/arch/powerpc/mm/pgtable-book3e.c
index 10
CONFIG_PPC_64K_PAGES is not selectable on nohash/64, so get
__pud_free_tlb() defined at all time.
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/nohash/64/pgalloc.h | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/powerpc/include/asm/nohash/
pgtable_t is now identical for all subarches, move it to the
top level asm/mmu.h
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/book3s/32/mmu-hash.h | 4
arch/powerpc/include/asm/book3s/64/mmu.h | 8
arch/powerpc/include/asm/mmu.h
This series converts book3e64 to pte_fragment and refactor
things that are common among subarches.
Changes in v2:
- Rebased on latest merge branch (b251649c77625b7ad4430e518dc0f1608be9edf4)
- Resolved conflicts, especially due to the addition of MAX_PHYSMEM_BITS in
asm/nohash/64/mmu.h ==> moved it
This has never been called (since Kernel has been in git at least),
drop it.
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/book3s/32/pgalloc.h | 2 --
arch/powerpc/include/asm/nohash/32/pgalloc.h | 2 --
2 files changed, 4 deletions(-)
diff --git a/
Book3E 64 is the only subarch not using pte_fragment. In order
to allow refactorisation, this patch converts it to pte_fragment.
Reviewed-by: Aneesh Kumar K.V
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/mmu_context.h | 6 -
arch/powerpc/include/asm/nohash/64/mmu.h
Hi!
> Could you please compile your kernel with CONFIG_PPC_PTDUMP, and
> provide the content of:
>
> /sys/kernel/debug/kernel_page_tables
---[ Start of kernel VM ]---
0xe100-0xefff 0x2100 240Mrw present
dirty accessed
---[ vmal
On Wed, Apr 24, 2019 at 02:44:07PM -0300, Mauro Carvalho Chehab wrote:
> Em Wed, 24 Apr 2019 00:29:08 +0800
> Changbin Du escreveu:
>
> > This converts the plain text documentation to reStructuredText format and
> > add it to Sphinx TOC tree. No essential content change.
> >
> > Signed-off-by: C
On Tue, Apr 02, 2019 at 03:30:50PM +0900, William Breathitt Gray wrote:
> From: Patrick Havelange
>
> FlexTimer quadrature decoder driver.
>
> Reviewed-by: Esben Haabendal
> Signed-off-by: Patrick Havelange
> Signed-off-by: William Breathitt Gray
> ---
> .../bindings/counter/ftm-quaddec.txt
None of these routines were ever used since they were added to the
kernel.
Signed-off-by: Christoph Hellwig
---
arch/powerpc/include/asm/book3s/64/mmu.h | 3 -
arch/powerpc/include/asm/powernv.h | 22 -
arch/powerpc/mm/mmu_context_book3s64.c | 2 -
arch/powerpc/platforms/powernv/npu
This function has never been used since it has been added to the tree.
We also now have proper PCIe P2P APIs in the core kernel, and any new
P2P support should be using those.
Signed-off-by: Christoph Hellwig
---
arch/powerpc/include/asm/opal.h| 2 -
arch/powerpc/include/asm/pnv-pci
Hi all,
the powerpc powernv port has a fairly large chunk of code that never
had any upstream user. We generally strive to not keep dead code
around, and this was affirmed at least years Maintainer summit.
These have been unused ever since they've been added to the kernel.
Signed-off-by: Christoph Hellwig
---
arch/powerpc/include/asm/pnv-pci.h| 2 -
arch/powerpc/platforms/powernv/pci-ioda.c | 4 +-
arch/powerpc/platforms/powernv/pci.c | 48 ---
arch/powerpc/platf
Hi Mark,
This is the only patch in the series that wasn't applied.
On Mon, Apr 22, 2019 at 10:03 PM Daniel Baluta wrote:
>
> From: Shengjiu Wang
>
> Turn off/on clocks when device enters suspend/resume. This
> can help saving power.
>
> As a further optimization, we turn off/on mclk only when S
On Fri, Apr 26, 2019 at 1:01 PM Mark Brown wrote:
>
> On Sun, Apr 21, 2019 at 07:39:09PM +, Daniel Baluta wrote:
> > Basically the same actions as for system PM, so make use
> > of pm_runtime_force_suspend/pm_runtime_force_resume.
>
> This doesn't apply against current code, please check and r
Align it with other architectures and none of the callers has
been interested its return
Signed-off-by: Li RongQing
---
v2->v3: remove extern from declaration
v1->v2: change memcpy_flushcache declaration in
arch/powerpc/include/asm/string.h
arch/powerpc/include/asm/string.h | 2 +-
arch/power
On Fri, Apr 26, 2019 at 12:41 PM David Gibson
wrote:
>
> On Fri, Apr 26, 2019 at 11:05:17AM +1000, David Gibson wrote:
> > On Thu, Apr 25, 2019 at 08:19:58AM +0200, Christoph Hellwig wrote:
> > > Just curious: What exact trees do you see this with? This area
> > > changed a lot with the multipag
Hi Mark
>
> On Mon, Apr 22, 2019 at 02:31:55AM +, S.j. Wang wrote:
> > Add pm runtime support and move clock handling there.
> > Close the clocks at suspend to reduce the power consumption.
> >
> > fsl_esai_suspend is replaced by pm_runtime_force_suspend.
> > fsl_esai_resume is replaced by pm
The patch
ASoC: fsl_sai: Add missing return 0 in remove()
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.2
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) an
On Sun, Apr 21, 2019 at 07:39:09PM +, Daniel Baluta wrote:
> Basically the same actions as for system PM, so make use
> of pm_runtime_force_suspend/pm_runtime_force_resume.
This doesn't apply against current code, please check and resend.
signature.asc
Description: PGP signature
On Mon, Apr 22, 2019 at 02:31:55AM +, S.j. Wang wrote:
> Add pm runtime support and move clock handling there.
> Close the clocks at suspend to reduce the power consumption.
>
> fsl_esai_suspend is replaced by pm_runtime_force_suspend.
> fsl_esai_resume is replaced by pm_runtime_force_resume.
On 24.04.19 12:25, David Hildenbrand wrote:
> Will come in handy when wanting to handle errors after
> arch_add_memory().
>
> Cc: Martin Schwidefsky
> Cc: Heiko Carstens
> Cc: Andrew Morton
> Cc: Michal Hocko
> Cc: Mike Rapoport
> Cc: David Hildenbrand
> Cc: Vasily Gorbik
> Cc: Oscar Salvad
On Thu 25-04-19 17:33:04, Dan Williams wrote:
> On Thu, Apr 25, 2019 at 12:32 AM Jan Kara wrote:
> >
> > On Wed 24-04-19 11:13:48, Dan Williams wrote:
> > > On Wed, Apr 24, 2019 at 10:38 AM Matthew Wilcox
> > > wrote:
> > > >
> > > > On Wed, Apr 24, 2019 at 10:13:15AM -0700, Dan Williams wrote:
On 20/04/2019 01:37, Greg Kurz wrote:
> If vfio_pci_register_dev_region() fails then we should rollback
> previous changes, ie. unmap the ATSD registers.
>
> Signed-off-by: Greg Kurz
> ---
> drivers/vfio/pci/vfio_pci_nvlink2.c |2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/dri
On 23/04/2019 10:58, Russell Currey wrote:
> On Fri, 2019-04-12 at 16:44 +1000, Alexey Kardashevskiy wrote:
>> This is an attempt to allow DMA mask 40 or similar which are not
>> large
>> enough to use either a PHB3 bypass mode or a sketchy bypass.
>>
>> This is based on sha1
>> 582549e3fbe1 Lin
Le 26/04/2019 à 06:54, Serge Belyshev a écrit :
Hi! Commit 63b2bc61956 aka "powerpc/mm/32s: Use BATs for STRICT_KERNEL_RWX"
caused my old powerbook to crash under I/O. After "dd if=/dev/hda of=/null"
the crash happens in seconds. Reverting the commit helps, as well as
disabling STRICT_KERNEL
Christophe Leroy writes:
> Now that slice_mask_for_size() is in mmu.h, the mm_ctx_slice_mask_xxx()
> are not needed anymore, so drop them. Note that the 8xx ones where
> not used anyway.
>
Reviewed-by: Aneesh Kumar K.V
> Signed-off-by: Christophe Leroy
> ---
> arch/powerpc/include/asm/book3s
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