Hello Michael,
On 22/11/23 18:22, Michael Ellerman wrote:
Sourabh Jain writes:
On 22/11/23 10:47, Michael Ellerman wrote:
Aneesh Kumar K V writes:
...
I am not sure whether we need to add all the complexity to enable supporting
different fadump kernel
version. Is that even a possible use c
Le 23/11/2023 à 20:37, Peter Xu a écrit :
> On Thu, Nov 23, 2023 at 06:22:33PM +, Christophe Leroy wrote:
>>> For fast-gup I think the hugepd code is in use, however for walk_page_*
>>> apis hugepd code shouldn't be reached iiuc as we have the hugetlb specific
>>> handling (walk_hugetlb_range
On Fri, 2023-11-24 at 11:36 +0800, Baoquan He wrote:
> Replace pr_debug() with the newly added kexec_dprintk() in kexec_file
> loading related codes.
trivia for pr_debug -> kexec_dprintk conversions for
the entire patch set:
> diff --git a/kernel/crash_core.c b/kernel/crash_core.c
[]
> @@ -551,9
Let us enable SBI based earlycon support in defconfig for both RV32
and RV64 so that "earlycon=sbi" can be used again.
Signed-off-by: Anup Patel
Reviewed-by: Andrew Jones
---
arch/riscv/configs/defconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/riscv/configs/defconfig b/arch/ris
From: Atish Patra
RISC-V SBI specification supports advanced debug console
support via SBI DBCN extension.
Extend the HVC SBI driver to support it.
Signed-off-by: Atish Patra
Signed-off-by: Anup Patel
---
drivers/tty/hvc/Kconfig | 2 +-
drivers/tty/hvc/hvc_riscv_sbi.c | 37 +
We extend the existing RISC-V SBI earlycon support to use the new
RISC-V SBI debug console extension.
Signed-off-by: Anup Patel
Reviewed-by: Andrew Jones
---
drivers/tty/serial/Kconfig | 2 +-
drivers/tty/serial/earlycon-riscv-sbi.c | 27 ++---
2 files changed,
Let us provide SBI debug console helper routines which can be
shared by serial/earlycon-riscv-sbi.c and hvc/hvc_riscv_sbi.c.
Signed-off-by: Anup Patel
Reviewed-by: Andrew Jones
---
arch/riscv/include/asm/sbi.h | 5 +++
arch/riscv/kernel/sbi.c | 66
2 f
The functions sbi_console_putchar() and sbi_console_getchar() are
not defined when CONFIG_RISCV_SBI_V01 is disabled so let us add
stub of these functions to avoid "#ifdef" on user side.
Signed-off-by: Anup Patel
Reviewed-by: Andrew Jones
---
arch/riscv/include/asm/sbi.h | 5 +
1 file change
The SBI v2.0 specification is now frozen. The SBI v2.0 specification defines
SBI debug console (DBCN) extension which replaces the legacy SBI v0.1
functions sbi_console_putchar() and sbi_console_getchar().
(Refer v2.0-rc5 at https://github.com/riscv-non-isa/riscv-sbi-doc/releases)
This series adds
Peter Xu writes:
> On Thu, Nov 23, 2023 at 06:22:33PM +, Christophe Leroy wrote:
>> > For fast-gup I think the hugepd code is in use, however for walk_page_*
>> > apis hugepd code shouldn't be reached iiuc as we have the hugetlb specific
>> > handling (walk_hugetlb_range()), so anything withi
Hello Aneesh,
On 22/11/23 17:50, Aneesh Kumar K V wrote:
On 11/22/23 4:05 PM, Sourabh Jain wrote:
Hello Michael,
On 22/11/23 10:47, Michael Ellerman wrote:
Aneesh Kumar K V writes:
...
I am not sure whether we need to add all the complexity to enable supporting
different fadump kernel
ver
Dimitri John Ledkov writes:
> BugLink: https://bugs.launchpad.net/bugs/2038587
>
> ppc64le is exclusively little endian and 64-bit, thus there is no need
> for COMPAT_32BIT_TIME, nor COMPAT.
To be pedantic, the ppc64le kernel does support running 32-bit little
endian userspace in compat mode (CON
Replace pr_debug() with the newly added kexec_dprintk() in kexec_file
loading related codes.
Signed-off-by: Baoquan He
---
arch/powerpc/kexec/elf_64.c | 8
arch/powerpc/kexec/file_load_64.c | 14 +++---
2 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/arch
Replace pr_debug() with the newly added kexec_dprintk() in kexec_file
loading related codes.
Signed-off-by: Baoquan He
---
arch/parisc/kernel/kexec_file.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/parisc/kernel/kexec_file.c b/arch/parisc/kernel/kexec_file.c
i
Replace pr_debug() with the newly added kexec_dprintk() in kexec_file
loading related codes.
And also remove kexec_image_info() because the content has been printed
out in generic code.
Signed-off-by: Baoquan He
---
arch/riscv/kernel/elf_kexec.c | 9 +
arch/riscv/kernel/machine_kex
Replace pr_debug() with the newly added kexec_dprintk() in kexec_file
loading related codes.
And also remove the kimage->segment[] printing because the generic code
has done the printing.
Signed-off-by: Baoquan He
---
arch/arm64/kernel/kexec_image.c| 2 +-
arch/arm64/kernel/machine_kex
Replace pr_debug() with the newly added kexec_dprintk() in kexec_file
loading related codes.
And also print out e820 memmap passed to 2nd kernel just as kexec_load
interface has been doing.
Signed-off-by: Baoquan He
---
arch/x86/kernel/crash.c | 2 +-
arch/x86/kernel/kexec-bzimage64.
Replace pr_debug() with the newly added kexec_dprintk() in kexec_file
loading related codes.
And also print out type/start/head of kimage and flags to help debug.
Signed-off-by: Baoquan He
---
kernel/crash_core.c| 5 -
kernel/kexec_file.c| 7 ++-
security
When specifying 'kexec -c -d', kexec_load interface will print loading
information, e.g the regions where kernel/initrd/purgatory/cmdline
are put, the memmap passed to 2nd kernel taken as system RAM ranges,
and printing all contents of struct kexec_segment, etc. These are
very helpful for analyzing
Currently, specifying '-d' will print a lot of debugging information
about kexec/kdump loading with kexec_load interface.
However, kexec_file_load prints nothing even though '-d' is specified.
It's very inconvenient to debug or analyze the kexec/kdump loading when
something wrong happened with kex
On Wed, 2023-11-22 at 13:48 +0100, Christian Brauner wrote:
> Ever since the evenfd type was introduced back in 2007 in commit
> e1ad7468c77d ("signal/timer/event: eventfd core") the
> eventfd_signal()
> function only ever passed 1 as a value for @n. There's no point in
> keeping that additional ar
Hi Vishal,
I think our wires got crossed here somewhere :)
Vishal Chourasia writes:
> Changed HOTPLUG_CPU dependency to SMP and either ARCH_HIBERNATION_POSSIBLE or
> ARCH_SUSPEND_POSSIBLE, aligning with systems' suspend/hibernation
> capabilities.
> This update link CPU hotplugging more logical
On 11/24/23 at 09:18am, Yujie Liu wrote:
> On Thu, Nov 23, 2023 at 09:49:20PM +0800, b...@redhat.com wrote:
> > On 11/17/23 at 10:01pm, Baoquan He wrote:
> > > On 11/17/23 at 09:37am, Liu, Yujie wrote:
> > > > Hi Baoquan,
> > > >
> > > > On Fri, 2023-11-17 at 17:14 +0800, Baoquan He wrote:
> > > >
On 11/23/23 at 08:41am, Nathan Chancellor wrote:
> On Thu, Nov 23, 2023 at 09:49:20PM +0800, b...@redhat.com wrote:
> > On 11/17/23 at 10:01pm, Baoquan He wrote:
> > > On 11/17/23 at 09:37am, Liu, Yujie wrote:
> > > > Hi Baoquan,
> > > >
> > > > On Fri, 2023-11-17 at 17:14 +0800, Baoquan He wrote:
On Thu, Nov 23, 2023 at 09:49:20PM +0800, b...@redhat.com wrote:
> On 11/17/23 at 10:01pm, Baoquan He wrote:
> > On 11/17/23 at 09:37am, Liu, Yujie wrote:
> > > Hi Baoquan,
> > >
> > > On Fri, 2023-11-17 at 17:14 +0800, Baoquan He wrote:
> > > > Hi,
> > > >
> > > > On 11/16/23 at 05:04am, kernel
Peter Xu writes:
> On Wed, Nov 22, 2023 at 12:00:24AM -0800, Christoph Hellwig wrote:
>> On Tue, Nov 21, 2023 at 10:59:35AM -0500, Peter Xu wrote:
...
>>
>> If dropping the check is the right thing for now (and I think the ppc
>> maintainers and willy as the large folio guy might have a more usef
BugLink: https://bugs.launchpad.net/bugs/2038587
ppc64le is exclusively little endian and 64-bit, thus there is no need
for COMPAT_32BIT_TIME, nor COMPAT.
diffconfig result of these changes is:
-ARCH_MMAP_RND_COMPAT_BITS 13
-ARCH_WANT_COMPAT_IPC_PARSE_VERSION y
-ARCH_WANT_OLD_COMPAT_IPC y
-C
- Original Message -
> From: "Michael Ellerman"
> To: "Timothy Pearson"
> Cc: "Jens Axboe" , "regressions"
> , "npiggin" ,
> "christophe leroy" , "linuxppc-dev"
>
> Sent: Tuesday, November 21, 2023 11:01:50 PM
> Subject: Re: [PATCH v2] powerpc: Don't clobber fr0/vs0 during fp|altive
On 11/22/23 5:48 AM, Christian Brauner wrote:
> Hey everyone,
>
> This simplifies the eventfd_signal() and eventfd_signal_mask() helpers
> significantly. They can be made void and not take any unnecessary
> arguments.
>
> I've added a few more simplifications based on Sean's suggestion.
>
> Sign
On 2023/11/23 19:27, Sachin Sant wrote:
> While booting recent -next kernel on IBM Power server, I have observed lockups
> either during boot or just after.
>
> [ 3631.015775] watchdog: CPU 3 self-detected hard LOCKUP @
> __update_freelist_slow+0x74/0x90
Sorry, the bug can be fixed by this patch
> > * eventfd_signal - Adds @n to the eventfd counter.
>
> This still refers to @n here, and in patch 4.
Fixed and folded. Thanks!
> > + if (!vgpu->msi_trigger)
> > + return;
> > + eventfd_signal(vgpu->msi_trigger, 1);
> > }
>
> I think it's a little simpler to write as
> if (vgpu->msi_trigger)
> eventfd_signal(vgpu->msi_trigger, 1);
Good point. I folded that suggestion into the patch.
On 11/22/23 at 09:47am, Ignat Korchagin wrote:
> On Wed, Nov 22, 2023 at 9:34 AM Baoquan He wrote:
> >
> > On 11/21/23 at 09:43am, Ignat Korchagin wrote:
> > > On Tue, Nov 21, 2023 at 7:53 AM Ignat Korchagin
> > > wrote:
> > > >
> > > > On Tue, Nov 21, 2023 at 1:50 AM Baoquan He wrote:
> > > >
On Tue, Nov 21, 2023 at 10:22:41AM +0100, Jiri Slaby (SUSE) wrote:
> This is a series to fix/clean up some obvious issues I revealed during
> u8+size_t conversions (to be posted later).
I applied most of these except the last few, as I think you were going
to reorder them, right?
thanks,
greg k-
On Thu, Nov 23, 2023 at 07:11:19PM +, Ryan Roberts wrote:
> Hi,
>
> I'm not sure I've 100% understood the crossover between this series and my
> work
> to support arm64's contpte mappings generally for anonymous and file-backed
> memory.
No worry, there's no confliction. If you worked on t
On Thu, Nov 23, 2023 at 06:22:33PM +, Christophe Leroy wrote:
> > For fast-gup I think the hugepd code is in use, however for walk_page_*
> > apis hugepd code shouldn't be reached iiuc as we have the hugetlb specific
> > handling (walk_hugetlb_range()), so anything within walk_pgd_range() to hi
On 23/11/2023 17:22, Peter Xu wrote:
> On Thu, Nov 23, 2023 at 03:47:49PM +, Matthew Wilcox wrote:
>> It looks like ARM (in the person of Ryan) are going to add support for
>> something equivalent to hugepd.
>
> If it's about arm's cont_pte, then it looks ideal because this series
> didn't yet
Le 22/11/2023 à 16:22, Peter Xu a écrit :
> On Wed, Nov 22, 2023 at 12:00:24AM -0800, Christoph Hellwig wrote:
>> On Tue, Nov 21, 2023 at 10:59:35AM -0500, Peter Xu wrote:
What prevents us from ever using hugepd with file mappings? I think
it would naturally fit in with how large folio
On Thu, Nov 23, 2023 at 03:47:49PM +, Matthew Wilcox wrote:
> It looks like ARM (in the person of Ryan) are going to add support for
> something equivalent to hugepd.
If it's about arm's cont_pte, then it looks ideal because this series
didn't yet touch cont_pte, assuming it'll just work. Fro
On Thu, 23 Nov 2023 09:14:53 +0800, Shengjiu Wang wrote:
> As the input phy clock frequency will divided by 2 by default
> on i.MX8MP with the implementation of clk-imx8mp-audiomix driver,
> So the requested frequency need to be updated.
>
> The relation of phy clock is:
> sai_pll_ref_sel
>
On Wed, Nov 22, 2023 at 11:21:50PM -0800, Christoph Hellwig wrote:
> That alone sounds like a good reason to not bother. So unless more
> qualified people have a different opinion I'm fine with this patch
> as long as you leave a comment in place, and ammend the commit message
> with some of the v
Add rule in new Makefile "tests/Makefile.tests" for running
shellcheck on shell test scripts. This automates below shellcheck
into the build.
$ for F in $(find tests/shell/ -perm -o=x -name '*.sh'); do shellcheck
-S warning $F; done
Condition for shellcheck is added in Makefile.perf to a
Running "perf list" on powerpc fails with segfault
as below:
./perf list
Segmentation fault (core dumped)
This happens because of duplicate events in the json list.
The powerpc Json event list contains some event with same
event name, but different event code. They are:
- PM_INST_FROM_L3MIS
Le 13/11/2023 à 11:23, Aneesh Kumar K.V a écrit :
> Christophe Leroy writes:
>
>> Le 07/11/2023 à 14:34, Aneesh Kumar K.V a écrit :
>>> Christophe Leroy writes:
>>>
Le 31/10/2023 à 11:15, Aneesh Kumar K.V a écrit :
> Christophe Leroy writes:
>
>
>
>>>
>>>
>>> We are adding the
On Wed, Nov 22, 2023 at 12:00:24AM -0800, Christoph Hellwig wrote:
> > The other option is I can always add a comment above gup_huge_pd()
> > explaining this special bit, so that when someone is adding hugepd support
> > to file large folios we'll hopefully not forget it? But then that
> > general
On Thu, Nov 23, 2023 at 09:49:20PM +0800, b...@redhat.com wrote:
> On 11/17/23 at 10:01pm, Baoquan He wrote:
> > On 11/17/23 at 09:37am, Liu, Yujie wrote:
> > > Hi Baoquan,
> > >
> > > On Fri, 2023-11-17 at 17:14 +0800, Baoquan He wrote:
> > > > Hi,
> > > >
> > > > On 11/16/23 at 05:04am, kernel
To be honest I don't know how paranoid we want to get, we could end up
putting WARN's all over the kernel :)
In this case I guess if the size is too large we overflow the buffer on
the kernel stack, so we should at least check the size.
But does it need a WARN? I'm not sure. If we had a case
Hi Anup,
On 2023-11-23 4:38 AM, Anup Patel wrote:
> On Wed, Nov 22, 2023 at 4:06 AM Samuel Holland
> wrote:
>> On 2023-11-17 9:38 PM, Anup Patel wrote:
>>> The functions sbi_console_putchar() and sbi_console_getchar() are
>>> not defined when CONFIG_RISCV_SBI_V01 is disabled so let us add
>>> stu
On 11/17/23 at 10:01pm, Baoquan He wrote:
> On 11/17/23 at 09:37am, Liu, Yujie wrote:
> > Hi Baoquan,
> >
> > On Fri, 2023-11-17 at 17:14 +0800, Baoquan He wrote:
> > > Hi,
> > >
> > > On 11/16/23 at 05:04am, kernel test robot wrote:
> > > > Hi Baoquan,
> > > >
> > > > kernel test robot noticed
Hi Andrew,
On 11/15/23 at 09:00pm, Baoquan He wrote:
> This function, being a variant of walk_system_ram_res() introduced in
> commit 8c86e70acead ("resource: provide new functions to walk through
> resources"), walks through a list of all the resources of System RAM
> in reversed order, i.e., fro
On Thu, Nov 23, 2023 at 08:38:45PM +0900, Masahiro Yamada wrote:
> On Thu, Nov 23, 2023 at 6:05 PM Greg KH wrote:
> >
> > On Wed, Nov 22, 2023 at 01:04:09PM -0800, Matthew Maurer wrote:
> > > > So, even if you enable CONFIG_MODVERSIONS,
> > > > nothing is checked for Rust.
> > > > Genksyms compute
On Thu, Nov 23, 2023 at 6:05 PM Greg KH wrote:
>
> On Wed, Nov 22, 2023 at 01:04:09PM -0800, Matthew Maurer wrote:
> > > So, even if you enable CONFIG_MODVERSIONS,
> > > nothing is checked for Rust.
> > > Genksyms computes a CRC from "int foo", and
> > > the module subsystem confirms it is a "int"
While booting recent -next kernel on IBM Power server, I have observed lockups
either during boot or just after.
[ 3631.015775] watchdog: CPU 3 self-detected hard LOCKUP @
__update_freelist_slow+0x74/0x90
[ 3631.015783] watchdog: CPU 3 TB:7766577908812231, last heartbeat
TB:7766572528409444 (105
Greg KH writes:
> On Thu, Nov 23, 2023 at 05:36:11PM +0800, Zhao Ke wrote:
>> HeXin Tech Co. has applied for a new PVN from the OpenPower Community
>> for its new processor C2000. The OpenPower has assigned a new PVN
>> and this newly assigned PVN is 0x0066, add pvr register related
>> support for
From: Arnd Bergmann
These functions are only called locally and should be static like the
other corresponding functions are:
arch/powerpc/platforms/powermac/smp.c:416:13: error: no previous prototype for
'smp_psurge_take_timebase' [-Werror=missing-prototypes]
416 | void __init smp_psurge_take
From: Arnd Bergmann
Allmodconfig builds show a warning about one function that is accidentally
marked global:
arch/powerpc/platforms/pasemi/setup.c:67:6: error: no previous prototype for
'pas_shutdown' [-Werror=missing-prototypes]
Fixes: 656fdf3ad8e0 ("powerpc/pasemi: Add Nemo board device ini
From: Arnd Bergmann
Allmodconfig kernels produce a missing-prototypes warning:
arch/powerpc/platforms/ps3/gelic_udbg.c:239:6: error: no previous prototype for
'udbg_shutdown_ps3gelic' [-Werror=missing-prototypes]
Move the declaration from a local header to asm/ps3.h where it can be
seen from b
From: Arnd Bergmann
Most of the other fixes I sent have been picked up in other trees
in linux-next already, but I saw the powerpc ones were still missing.
I've folded the fixup for the ps3gelic patch in, the other two
patches are unchanged. Please apply, or ignore if you already
have them in so
On Mon, Nov 20, 2023 at 1:35 PM Andrew Jones wrote:
>
> On Sat, Nov 18, 2023 at 09:08:56AM +0530, Anup Patel wrote:
> > Let us provide SBI debug console helper routines which can be
> > shared by serial/earlycon-riscv-sbi.c and hvc/hvc_riscv_sbi.c.
> >
> > Signed-off-by: Anup Patel
> > ---
> > a
On Wed, Nov 22, 2023 at 4:15 AM Samuel Holland
wrote:
>
> Hi Anup,
>
> On 2023-11-17 9:38 PM, Anup Patel wrote:
> > Let us provide SBI debug console helper routines which can be
> > shared by serial/earlycon-riscv-sbi.c and hvc/hvc_riscv_sbi.c.
> >
> > Signed-off-by: Anup Patel
> > ---
> > arch/
On Wed, Nov 22, 2023 at 4:11 AM Samuel Holland
wrote:
>
> Hi Anup,
>
> On 2023-11-17 9:38 PM, Anup Patel wrote:
> > We extend the existing RISC-V SBI earlycon support to use the new
> > RISC-V SBI debug console extension.
> >
> > Signed-off-by: Anup Patel
> > Reviewed-by: Andrew Jones
> > ---
>
On Wed, Nov 22, 2023 at 4:18 AM Samuel Holland
wrote:
>
> Hi Anup,
>
> On 2023-11-17 9:38 PM, Anup Patel wrote:
> > Let us enable SBI based earlycon support in defconfigs for both RV32
> > and RV64 so that "earlycon=sbi" can be used again.
> >
> > Signed-off-by: Anup Patel
> > Reviewed-by: Andrew
On Wed, Nov 22, 2023 at 4:06 AM Samuel Holland
wrote:
>
> Hi Anup,
>
> On 2023-11-17 9:38 PM, Anup Patel wrote:
> > The functions sbi_console_putchar() and sbi_console_getchar() are
> > not defined when CONFIG_RISCV_SBI_V01 is disabled so let us add
> > stub of these functions to avoid "#ifdef" on
On Wed, 22 Nov 2023 17:27:11 +1100, Michael Ellerman wrote:
> The mpc8610_hpcd.c driver depends on CONFIG_MPC8610_HPCD which was
> removed in commit 248667f8bbde ("powerpc: drop HPCD/MPC8610 evaluation
> platform support"). That makes the driver unbuildable and unusable, so
> remove it.
>
>
Appl
Hi Li, Qiang,
This series is waiting for some feedback from your side in order to be merged.
This block the entire series.
The patches related to the PowerPC QUICC ENGINE QMC and TSA are:
- patches 1 to 6
- patches 9 to 19
The patch 7 is a HDLC driver that uses the QMC and the patch 20 improves
HeXin Tech Co. has applied for a new PVN from the OpenPower Community
for its new processor C2000. The OpenPower has assigned a new PVN
and this newly assigned PVN is 0x0066, add pvr register related
support for this PVN.
Signed-off-by: Zhao Ke
Link:
https://discuss.openpower.foundation/t/how-to
On Thu, Nov 23, 2023 at 05:36:11PM +0800, Zhao Ke wrote:
> HeXin Tech Co. has applied for a new PVN from the OpenPower Community
> for its new processor C2000. The OpenPower has assigned a new PVN
> and this newly assigned PVN is 0x0066, add pvr register related
> support for this PVN.
>
> Signed-
On 11/23/2023 3:14 AM, Shengjiu Wang wrote:
As the input phy clock frequency will divided by 2 by default
on i.MX8MP with the implementation of clk-imx8mp-audiomix driver,
So the requested frequency need to be updated.
The relation of phy clock is:
sai_pll_ref_sel
sai_pll
On Wed, Nov 22, 2023 at 01:04:09PM -0800, Matthew Maurer wrote:
> > So, even if you enable CONFIG_MODVERSIONS,
> > nothing is checked for Rust.
> > Genksyms computes a CRC from "int foo", and
> > the module subsystem confirms it is a "int"
> > variable.
> >
> > We know this check always succeeds.
>
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