Starting with linux-next 20200701 release I am observing automated regressions
tests taking longer time to complete. A test which took 10 minutes with
next-20200630
took more than 60 minutes against next-20200701.
Following hung task timeout messages were seen during these runs
[ 1718.848351]
On Thu, Jul 02, 2020 at 04:11:14PM +0200, Arnaud Ferraris wrote:
> fsl-asoc-card currently doesn't support generic codecs with the SoC
> acting as I2S slave.
>
> This commit adds a new `fsl,imx-audio-i2s-slave` for this use-case, as
> well as the following mandatory properties:
Why require that
On Thu, Jul 02, 2020 at 10:10:10AM -0400, Qian Cai wrote:
> On Mon, Jun 29, 2020 at 09:39:45PM +0200, Christoph Hellwig wrote:
> > Split out a __submit_bio_noacct helper for the actual de-recursion
> > algorithm, and simplify the loop by using a continue when we can't
> > enter the queue for a
This reverts commit d2a91cef9bbdeb87b7449fdab1a6be6000930210.
This commit moved too much work in kasan_init(). The allocation
of shadow pages has to be moved for the reason explained in that
patch, but the allocation of page tables still need to be done
before switching to the final hash table.
Doing kasan pages allocation in MMU_init is too early, kernel doesn't
have access yet to the entire memory space and memblock_alloc() fails
when the kernel is a bit big.
Do it from kasan_init() instead.
Reported-by: Erhard F.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=208181
Fixes:
15][ T1373] CPU: 2 PID: 1373 Comm: mount Not tainted
5.8.0-rc3-next-20200702 #2
[ 55.598672][ T1373] Hardware name: HPE ProLiant DL385 Gen10/ProLiant DL385
Gen10, BIOS A40 07/10/2019
[ 55.607972][ T1373] Call Trace:
[ 55.607980][ T1373] dump_stack+0x9d/0xe0
[ 55.607984][ T1373] ? bio_all
On 07/02/20 at 12:01am, Hari Bathini wrote:
>
>
> On 01/07/20 1:16 pm, Dave Young wrote:
> > On 06/29/20 at 05:26pm, Hari Bathini wrote:
> >> Hi Petr,
> >>
> >> On 29/06/20 5:09 pm, Petr Tesarik wrote:
> >>> Hi Hari,
> >>>
> >>> is there any good reason to add two more functions with a very
https://bugzilla.kernel.org/show_bug.cgi?id=208181
--- Comment #11 from Christophe Leroy (christophe.le...@csgroup.eu) ---
The issue is that that commit moved more code than described into kasan_init():
Kasan Pages allocation have to be moved into kasan_init() but page tables
allocation must
On Thu, Jul 02, 2020 at 04:53:04PM +0530, Sachin Sant wrote:
> Starting with linux-next 20200701 release I am observing automated regressions
> tests taking longer time to complete. A test which took 10 minutes with
> next-20200630
> took more than 60 minutes against next-20200701.
>
>
On 07/01/20 at 11:48pm, Hari Bathini wrote:
>
>
> On 01/07/20 1:10 pm, Dave Young wrote:
> > Hi Hari,
> > On 06/27/20 at 12:35am, Hari Bathini wrote:
> >> crashkernel region could have an overlap with special memory regions
> >> like opal, rtas, tce-table & such. These regions are referred to
> > I'm confused about the "overlap with crashkernel memory", does that mean
> > those normal kernel used memory could be put in crashkernel reserved
> > memory range? If so why can't just skip those areas while crashkernel
> > doing the reservation?
> I raised the same question in another mail.
On Fri, Jun 26, 2020 at 03:58:24PM +0530, Kajol Jain wrote:
> Patch here adds a cpumask attr to hv_24x7 pmu along with ABI documentation.
>
> Primary use to expose the cpumask is for the perf tool which has the
> capability to parse the driver sysfs folder and understand the
> cpumask file.
Documentation wrongly tells that book3s/32 CPU have hash MMU.
603 and e300 core only have software loaded TLB.
755, 7450 family and e600 core have both hash MMU and software loaded
TLB. This can be selected by setting a bit in HID2 (755) or
HID0 (others). At the time being this is not supported
nter the queue for a bio.
> >
> > Signed-off-by: Christoph Hellwig
Kernel BUG: on arm64 and x86_64 devices running linux next-rc3-next-20200702
with KASAN config enabled. While running mkfs -t ext4.
metadata:
git branch: master
git repo: https://git.kernel.org/pub/scm/linux/kernel/
> On 02-Jul-2020, at 5:22 PM, Ming Lei wrote:
>
> On Thu, Jul 02, 2020 at 04:53:04PM +0530, Sachin Sant wrote:
>> Starting with linux-next 20200701 release I am observing automated
>> regressions
>> tests taking longer time to complete. A test which took 10 minutes with
>> next-20200630
>>
On Thu, Jun 18, 2020 at 06:45:29AM +0530, Anshuman Khandual wrote:
> There are many instances where vmemap allocation is often switched between
> regular memory and device memory just based on whether altmap is available
> or not. vmemmap_alloc_block_buf() is used in various platforms to allocate
Hi Catalin,
On 07/02/20 at 12:00pm, Catalin Marinas wrote:
> On Thu, May 14, 2020 at 12:22:36AM +0530, Bhupesh Sharma wrote:
> > diff --git a/kernel/crash_core.c b/kernel/crash_core.c
> > index 9f1557b98468..18175687133a 100644
> > --- a/kernel/crash_core.c
> > +++ b/kernel/crash_core.c
> > @@
* Michal Hocko [2020-07-02 10:41:23]:
> On Thu 02-07-20 12:14:08, Srikar Dronamraju wrote:
> > * Michal Hocko [2020-07-01 14:21:10]:
> >
> > > > > The autonuma problem sounds interesting but again this patch
> > > > > doesn't
> > > > > really solve the underlying problem because I
Fix W=1 warnings. There is no kernel-doc here.
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl_ssi_dbg.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/fsl/fsl_ssi_dbg.c b/sound/soc/fsl/fsl_ssi_dbg.c
index 2a20ee23dc52..2c46c55f0a88 100644
---
On Thu, Jul 02, 2020 at 12:22:22PM -0500, Pierre-Louis Bossart wrote:
> Fix W=1 warnings. There is no kernel-doc here.
>
> Signed-off-by: Pierre-Louis Bossart
Acked-by: Nicolin Chen
Fix W=1 warnings. Kernel-doc syntax was not properly used.
Acked-by: Nicolin Chen
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl-asoc-card.c | 21 +
1 file changed, 9 insertions(+), 12 deletions(-)
diff --git a/sound/soc/fsl/fsl-asoc-card.c
On Thu, Jul 02, 2020 at 08:08:55PM +0800, Dave Young wrote:
> Hi Catalin,
> On 07/02/20 at 12:00pm, Catalin Marinas wrote:
> > On Thu, May 14, 2020 at 12:22:36AM +0530, Bhupesh Sharma wrote:
> > > diff --git a/kernel/crash_core.c b/kernel/crash_core.c
> > > index 9f1557b98468..18175687133a 100644
On 20/6/20 12:04 am, Frederic Barrat wrote:
From: Philippe Bergheaud
Some opencapi FPGA images allow to control if the FPGA should be reloaded
on the next adapter reset. If it is supported, the image specifies it
through a Vendor Specific DVSEC in the config space of function 0.
Fix W=1 warnings. fix kernel doc and describe arguments.
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl_asrc.c | 57 +++-
1 file changed, 39 insertions(+), 18 deletions(-)
diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
index
On Thu, Jul 02, 2020 at 12:22:25PM -0500, Pierre-Louis Bossart wrote:
> Fix W=1 warnings. kernel-doc syntax was not followed and missing parameter
>
> Signed-off-by: Pierre-Louis Bossart
Acked-by: Nicolin Chen
Fix W=1 warnings. There is no kernel-doc here.
Acked-by: Nicolin Chen
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl_ssi_dbg.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/sound/soc/fsl/fsl_ssi_dbg.c b/sound/soc/fsl/fsl_ssi_dbg.c
index
cks using
> device-tree properties.
We recent just merged a new change that auto-selecting internal
clocks based on sample rates as the first option -- ideal ratio
mode is the fallback mode now. Please refer to:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?h=n
On Thu, Jul 02, 2020 at 12:22:27PM -0500, Pierre-Louis Bossart wrote:
> Fix W=1 warnings. Fix kernel-doc syntax and add missing parameters.
>
> Signed-off-by: Pierre-Louis Bossart
> + * fsl_esai_set_dai_sysclk - This function mainly configures the clock
> frequency of MCLK (HCKT/HCKR)
Can
A number of userspace utilities depend on making calls to RTAS to retrieve
information and update various things.
The existing API through which we expose RTAS to userspace exposes more
RTAS functionality than we actually need, through the sys_rtas syscall,
which allows root (or anyone with
Fix W=1 warnings. The kernel-doc support is partial, add more
descriptions and follow proper syntax
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl_ssi.c | 70 ++---
1 file changed, 44 insertions(+), 26 deletions(-)
diff --git
Fix W=1 warnings. kernel-doc syntax was not followed and missing parameter
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl_spdif.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index
On Thu, Jul 02, 2020 at 05:28:03PM +0200, Arnaud Ferraris wrote:
> Le 02/07/2020 à 16:31, Mark Brown a écrit :
> > Why require that the CODEC be clock master here - why not make this
> > configurable, reusing the properties from the generic and audio graph
> > cards?
> This is partly because I'm
Fix W=1 warnings. Kernel-doc syntax was not properly used.
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl-asoc-card.c | 21 +
1 file changed, 9 insertions(+), 12 deletions(-)
diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
index
On Wed, Jul 1, 2020 at 2:01 AM Christoph Hellwig wrote:
>
> generic_make_request has always been very confusingly misnamed, so rename
> it to submit_bio_noacct to make it clear that it is submit_bio minus
> accounting and a few checks.
>
> Signed-off-by: Christoph Hellwig
> ---
[...]
>
On Thu, Jul 02, 2020 at 12:22:23PM -0500, Pierre-Louis Bossart wrote:
> Fix W=1 warnings. The kernel-doc support is partial, add more
> descriptions and follow proper syntax
>
> Signed-off-by: Pierre-Louis Bossart
Acked-by: Nicolin Chen
On Thu, Jul 02, 2020 at 12:22:24PM -0500, Pierre-Louis Bossart wrote:
> Fix W=1 warnings. Kernel-doc syntax was not properly used.
>
> Signed-off-by: Pierre-Louis Bossart
> ---
> sound/soc/fsl/fsl-asoc-card.c | 21 +
> 1 file changed, 9 insertions(+), 12 deletions(-)
>
>
On 7/2/20 1:55 PM, Nicolin Chen wrote:
On Thu, Jul 02, 2020 at 12:22:27PM -0500, Pierre-Louis Bossart wrote:
Fix W=1 warnings. Fix kernel-doc syntax and add missing parameters.
Signed-off-by: Pierre-Louis Bossart
+ * fsl_esai_set_dai_sysclk - This function mainly configures the clock
https://bugzilla.kernel.org/show_bug.cgi?id=208181
--- Comment #12 from Erhard F. (erhar...@mailbox.org) ---
Successfully applied your 2 patches. The kernel still complains about these 2
BATs, but the KASAN hit at early boot is gone with the patches. Thanks!
--
You are receiving this mail
Fix W=1 warnings. Fix kernel-doc syntax and add missing parameters.
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl_esai.c | 32 ++--
1 file changed, 18 insertions(+), 14 deletions(-)
diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
index
On Thu, Jul 2, 2020 at 10:45 PM Catalin Marinas wrote:
>
> On Thu, 14 May 2020 00:22:35 +0530, Bhupesh Sharma wrote:
> > Apologies for the delayed update. Its been quite some time since I
> > posted the last version (v5), but I have been really caught up in some
> > other critical issues.
> >
> >
On 7/2/20 1:47 PM, Nicolin Chen wrote:
On Thu, Jul 02, 2020 at 12:22:24PM -0500, Pierre-Louis Bossart wrote:
Fix W=1 warnings. Kernel-doc syntax was not properly used.
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl-asoc-card.c | 21 +
1 file changed, 9
Hi Nicholas,
I love your patch! Yet something to improve:
[auto build test ERROR on powerpc/next]
[also build test ERROR on tip/locking/core v5.8-rc3 next-20200702]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use as documented
On Thu, Jul 02, 2020 at 12:22:26PM -0500, Pierre-Louis Bossart wrote:
> Fix W=1 warnings. fix kernel doc and describe arguments.
>
> Signed-off-by: Pierre-Louis Bossart
Acked-by: Nicolin Chen
Fix W=1 warnings. The kernel-doc support is partial, add more
descriptions and follow proper syntax
Acked-by: Nicolin Chen
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl_ssi.c | 70 ++---
1 file changed, 44 insertions(+), 26 deletions(-)
diff
Kdump kernel, used for capturing the kernel core image, is supposed
to use only specific memory regions to avoid corrupting the image to
be captured. The regions are crashkernel range - the memory reserved
explicitly for kdump kernel, memory used for the tce-table, the OPAL
region and RTAS region
crashkernel region could have an overlap with special memory regions
like opal, rtas, tce-table & such. These regions are referred to as
exclude memory ranges. Setup this ranges during image probe in order
to avoid them while finding the buffer for different kdump segments.
Override
Though kdump kernel boots from loaded address, the first 64K bytes
of it is copied down to real 0. So, setup a backup region to copy
the first 64K bytes of crashed kernel, in purgatory, before booting
into kdump kernel. Also, update reserve map with backup region and
crashed kernel's memory to
Gentle ping.
On Sat, Jun 27, 2020 at 05:34:45PM +0300, Mike Rapoport wrote:
> From: Mike Rapoport
>
> Hi,
>
> Most architectures have very similar versions of pXd_alloc_one() and
> pXd_free_one() for intermediate levels of page table.
> These patches add generic versions of these functions in
fsl_asrc currently uses hardcoded input and output clocks, preventing
its use for anything other than S/PDIF output.
This patch adds the ability to select any clock as input or output (by
using new DT properties), making it possible to use this peripheral in a
more advanced way.
Signed-off-by:
Even when not in "Ideal Ratio" mode, ASRC can use an internally measured
ratio, which greatly improves the conversion quality.
This patch ensures we always use at least the internal ratio.
Signed-off-by: Arnaud Ferraris
---
sound/soc/fsl/fsl_asrc.c | 5 ++---
1 file changed, 2 insertions(+), 3
Add Shengjiu who's actively working on the latest fsl/nxp audio drivers.
Signed-off-by: Nicolin Chen
Cc: Shengjiu Wang
---
To Shengjiu, please ack if you feel okay with this (your email address too).
MAINTAINERS | 1 +
1 file changed, 1 insertion(+)
diff --git a/MAINTAINERS b/MAINTAINERS
This patch series enables kdump support for kexec_file_load system
call (kexec -s -p) on PPC64. The changes are inspired from kexec-tools
code but heavily modified for kernel consumption. There is scope to
expand purgatory to verify sha256 digest along with other improvements
in purgatory code.
Currently, numa & prom are the users of drmem lmb walk code. Loading
kdump with kexec_file also needs to walk the drmem LMBs to setup the
usable memory ranges for kdump kernel. But there are couple of issues
in using the code as is. One, walk_drmem_lmb() code is built into the
.init section
On Thu, Jul 2, 2020 at 4:31 PM Nicolin Chen wrote:
>
> Add Shengjiu who's actively working on the latest fsl/nxp audio drivers.
>
> Signed-off-by: Nicolin Chen
> Cc: Shengjiu Wang
Reviewed-by: Fabio Estevam
On 2020/7/1 16:59, Christoph Hellwig wrote:
> Nothing in bcache actually uses the ->queuedata field.
>
> Signed-off-by: Christoph Hellwig
Acked-by: Coly Li
> ---
> drivers/md/bcache/super.c | 1 -
> 1 file changed, 1 deletion(-)
>
> diff --git a/drivers/md/bcache/super.c
On 2020/7/1 16:59, Christoph Hellwig wrote:
> The make_request_fn is a little weird in that it sits directly in
> struct request_queue instead of an operation vector. Replace it with
> a block_device_operations method called submit_bio (which describes much
> better what it does). Also remove
Fix W=1 warnings. kernel-doc syntax was not followed and missing parameter
Acked-by: Nicolin Chen
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl_spdif.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
Some architectures may have special memory regions, within the given
memory range, which can't be used for the buffer in a kexec segment.
Implement weak arch_kexec_locate_mem_hole() definition which arch code
may override, to take care of special regions, while trying to locate
a memory hole.
While initrd, elfcorehdr and backup regions are already added to the
reserve map, there are a few missing regions that need to be added to
the memory reserve map. Add them here. And now that all the changes
to load panic kernel are in place, claim likewise.
Signed-off-by: Hari Bathini
---
On 7/2/20 3:48 AM, Nicholas Piggin wrote:
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/paravirt.h | 23
arch/powerpc/include/asm/qspinlock.h | 55 +++
arch/powerpc/include/asm/qspinlock_paravirt.h | 5 ++
Hi Mark,
Le 02/07/2020 à 16:31, Mark Brown a écrit :
> On Thu, Jul 02, 2020 at 04:11:14PM +0200, Arnaud Ferraris wrote:
>> fsl-asoc-card currently doesn't support generic codecs with the SoC
>> acting as I2S slave.
>>
>> This commit adds a new `fsl,imx-audio-i2s-slave` for this use-case, as
>>
Fix W=1 warnings. fix kernel doc and describe arguments.
Acked-by: Nicolin Chen
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl_asrc.c | 57 +++-
1 file changed, 39 insertions(+), 18 deletions(-)
diff --git a/sound/soc/fsl/fsl_asrc.c
To avoid any weird errors, the purgatory should run with its own
stack. Set one up by adding the stack buffer to .data section of
the purgatory. Also, setup opal base & entry values in r8 & r9
registers to help early OPAL debugging.
Signed-off-by: Hari Bathini
---
Changes in v2:
* Setting up
This commit implements support for generic codecs with the SoC acting as
I2S slave, by implementing the new `fsl,imx-audio-i2s-slave` compatible
and related properties.
This is particularly useful when using a Bluetooth controller acting as
I2S master, but other simple or dummy codecs might
fsl-asoc-card currently doesn't support generic codecs with the SoC
acting as I2S slave.
This commit adds a new `fsl,imx-audio-i2s-slave` for this use-case, as
well as the following mandatory properties:
- `audio-codec-dai-name` for specifying the codec DAI to be used
- `audio-slot-width`
In kexec case, the kernel to be loaded uses the same memory layout as
the running kernel. So, passing on the DT of the running kernel would
be good enough.
But in case of kdump, different memory ranges are needed to manage
loading the kdump kernel, booting into it and exporting the elfcore
of the
Some of the kexec_file_load code isn't PPC64 specific. Move PPC64
specific code from kexec/file_load.c to kexec/file_load_64.c. Also,
rename purgatory/trampoline.S to purgatory/trampoline_64.S in the
same spirit.
Signed-off-by: Hari Bathini
---
Changes in v2:
* No changes.
The kexec purgatory has to run in real mode. Only the first memory
block maybe accessible in real mode. And, unlike the case with panic
kernel, no memory is set aside for regular kexec load. Another thing
to note is, the memory for crashkernel is reserved at an offset of
128MB. So, when
The current ASRC driver hardcodes the input and output clocks used for
sample rate conversions. In order to allow greater flexibility and to
cover more use cases, it would be preferable to select the clocks using
device-tree properties.
This series also fix register configuration and clock
The ASRC peripheral accepts a wide range of input and output clocks, but
no mechanism exists at the moment to define those as they are currently
hardcoded in the driver.
This commit adds new properties allowing selection of arbitrary input
and output clocks.
Signed-off-by: Arnaud Ferraris
---
Fix W=1 warnings. Fix kernel-doc syntax and add missing parameters.
Acked-by: Nicolin Chen
Signed-off-by: Pierre-Louis Bossart
---
sound/soc/fsl/fsl_esai.c | 32 ++--
1 file changed, 18 insertions(+), 14 deletions(-)
diff --git a/sound/soc/fsl/fsl_esai.c
Right now purgatory implementation is only minimal. But if purgatory
code is to be enhanced to copy memory to the backup region and verify
sha256 digest, relocations may have to be applied to the purgatory.
So, add support to relocate purgatory in kexec_file_load system call
by setting up TOC
Prepare elf headers for the crashing kernel's core file using
crash_prepare_elf64_headers() and pass on this info to kdump
kernel by updating its command line with elfcorehdr parameter.
Also, add elfcorehdr location to reserve map to avoid it from
being stomped on while booting.
Signed-off-by:
fsl-asoc-card currently only works with AC97 or a selection of codecs,
although the hardware is capable of more.
Supporting generic codecs when acting as I2S slave (codec is master)
would be useful, especially when using Bluetooth audio, as these are
generally simple I2S devices not controlled by
The input clock is the reference clock we need to convert the stream to,
which therefore has to be the clock of the origin stream/device.
When the stream is bi-directional and we want ASRC to act on both
directions, we need to swap the input and output clocks between the
playback and capture
On 2020/7/1 16:59, Christoph Hellwig wrote:
> generic_make_request has always been very confusingly misnamed, so rename
> it to submit_bio_noacct to make it clear that it is submit_bio minus
> accounting and a few checks.
>
> Signed-off-by: Christoph Hellwig
I will miss generic_make_request().
Excerpts from Zefan Li's message of July 1, 2020 5:10 pm:
>> static void *__vmalloc_node(unsigned long size, unsigned long align,
>> -gfp_t gfp_mask, pgprot_t prot,
>> -int node, const void *caller);
>> +gfp_t gfp_mask, pgprot_t
Make GTSE an MMU feature and enable it by default for radix.
However for guest, conditionally enable it if hypervisor supports
it via OV5 vector. Let prom_init ask for radix GTSE only if the
support exists.
Having GTSE as an MMU feature will make it easy to enable radix
without GTSE. Currently
H_REGISTER_PROC_TBL asks for GTSE by default. GTSE flag bit should
be set only when GTSE is supported.
Signed-off-by: Bharata B Rao
Reviewed-by: Aneesh Kumar K.V
---
arch/powerpc/platforms/pseries/lpar.c | 8 +---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git
Hypervisor may choose not to enable Guest Translation Shootdown Enable
(GTSE) option for the guest. When GTSE isn't ON, the guest OS isn't
permitted to use instructions like tblie and tlbsync directly, but is
expected to make hypervisor calls to get the TLB flushed.
This series enables the TLB
From: Nicholas Piggin
When platform doesn't support GTSE, let TLB invalidation requests
for radix guests be off-loaded to the host using H_RPT_INVALIDATE
hcall.
Signed-off-by: Nicholas Piggin
Signed-off-by: Bharata B Rao
[hcall wrapper, error path handling and renames]
---
https://bugzilla.kernel.org/show_bug.cgi?id=208181
--- Comment #14 from Erhard F. (erhar...@mailbox.org) ---
Ah, I've overlooked that...
To set CONFIG_DATA_SHIFT=25 I needed to set ADVANCED_OPTIONS=y,
DATA_SHIFT_BOOL=y first.
But with CONFIG_DATA_SHIFT=25 this kernel won't boot at all.
ISA v3.1 does not support the SAO storage control attribute required to
implement PROT_SAO. PROT_SAO was used by specialised system software
(Lx86) that has been discontinued for about 7 years, and is not thought
to be used elsewhere, so removal should not cause problems.
We rather remove it than
The subpage_prot syscall was added for specialised system software
(Lx86) that has been discontinued for about 7 years, and is not thought
to be used elsewhere, so disable it by default.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/Kconfig | 7 +--
Le 03/07/2020 à 05:17, Michael Ellerman a écrit :
Christophe Leroy writes:
Le 02/07/2020 à 15:34, Michael Ellerman a écrit :
Linus Torvalds writes:
On Wed, Jul 1, 2020 at 12:59 PM Al Viro wrote:
On Wed, Jul 01, 2020 at 12:04:36PM -0700, Linus Torvalds wrote:
That's actually for the
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/mce.h| 1 +
arch/powerpc/kernel/dt_cpu_ftrs.c | 10
arch/powerpc/kernel/mce.c | 1 +
arch/powerpc/kernel/mce_power.c | 84 +++
4 files changed, 96 insertions(+)
diff --git
On 7/2/20 12:15 PM, kernel test robot wrote:
Hi Nicholas,
I love your patch! Yet something to improve:
[auto build test ERROR on powerpc/next]
[also build test ERROR on tip/locking/core v5.8-rc3 next-20200702]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when
It was suggested that I post this to a wider audience on account of
the change to supported userspace features in patch 2 particularly.
Thanks,
Nick
Nicholas Piggin (3):
powerpc: remove stale calc_vm_prot_bits comment
powerpc/64s: remove PROT_SAO support
powerpc/64s/hash: disable
https://bugzilla.kernel.org/show_bug.cgi?id=208181
--- Comment #15 from Christophe Leroy (christophe.le...@csgroup.eu) ---
Ah yes, having init_text above the 24 bits limit might be a problem for
function calls. I'm surprised that the linker doesn't complain.
Anyway, it is not a problem in
_list[1] in a totally
> undocumented way. But even with that the problem should only show
> up with "block: shortcut __submit_bio_noacct for blk-mq drivers".
>
> Can you try this patch?
Applied your patch on top of linux-next 20200702 and tested on
arm64 and x86_64 devices and the
On Thu, 14 May 2020 00:22:35 +0530, Bhupesh Sharma wrote:
> Apologies for the delayed update. Its been quite some time since I
> posted the last version (v5), but I have been really caught up in some
> other critical issues.
>
> Changes since v5:
>
> - v5 can be viewed here:
>
https://bugzilla.kernel.org/show_bug.cgi?id=208181
--- Comment #13 from Christophe Leroy (christophe.le...@csgroup.eu) ---
Thanks for testing.
Regarding the two BATs, I suggest you increase CONFIG_DATA_SHIFT as explained
in a previous comment.
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This comment is wrong, we wouldn't use calc_vm_prot_bits here because
we are being called by calc_vm_prot_bits to modify its behaviour.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/include/asm/mman.h | 4
1 file changed, 4 deletions(-)
diff --git a/arch/powerpc/include/asm/mman.h
Excerpts from Will Deacon's message of July 2, 2020 6:02 pm:
> On Thu, Jul 02, 2020 at 05:48:36PM +1000, Nicholas Piggin wrote:
>> diff --git a/arch/powerpc/include/asm/qspinlock.h
>> b/arch/powerpc/include/asm/qspinlock.h
>> new file mode 100644
>> index ..f84da77b6bb7
>> ---
On Thu, Jul 02, 2020 at 08:25:43PM +1000, Nicholas Piggin wrote:
> Excerpts from Will Deacon's message of July 2, 2020 6:02 pm:
> > On Thu, Jul 02, 2020 at 05:48:36PM +1000, Nicholas Piggin wrote:
> >> diff --git a/arch/powerpc/include/asm/qspinlock.h
> >> b/arch/powerpc/include/asm/qspinlock.h
>
Excerpts from Peter Zijlstra's message of July 2, 2020 6:28 pm:
> On Thu, Jul 02, 2020 at 05:48:33PM +1000, Nicholas Piggin wrote:
>> There is no need for rmb(), this allows faster lwsync here.
>
> Since you determined this; I'm thinking you actually understand the
> ordering here. How about
Excerpts from Will Deacon's message of July 2, 2020 8:35 pm:
> On Thu, Jul 02, 2020 at 08:25:43PM +1000, Nicholas Piggin wrote:
>> Excerpts from Will Deacon's message of July 2, 2020 6:02 pm:
>> > On Thu, Jul 02, 2020 at 05:48:36PM +1000, Nicholas Piggin wrote:
>> >> diff --git
On Thu, Jul 02, 2020 at 08:47:05PM +1000, Nicholas Piggin wrote:
> Excerpts from Will Deacon's message of July 2, 2020 8:35 pm:
> > On Thu, Jul 02, 2020 at 08:25:43PM +1000, Nicholas Piggin wrote:
> >> Excerpts from Will Deacon's message of July 2, 2020 6:02 pm:
> >> > On Thu, Jul 02, 2020 at
On Thu, May 14, 2020 at 12:22:36AM +0530, Bhupesh Sharma wrote:
> diff --git a/kernel/crash_core.c b/kernel/crash_core.c
> index 9f1557b98468..18175687133a 100644
> --- a/kernel/crash_core.c
> +++ b/kernel/crash_core.c
> @@ -413,6 +413,7 @@ static int __init crash_save_vmcoreinfo_init(void)
>
These have shown significantly improved performance and fairness when
spinlock contention is moderate to high on very large systems.
[ Numbers hopefully forthcoming after more testing, but initial
results look good ]
Thanks to the fast path, single threaded performance is not noticably
hurt.
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