On Thu, Dec 21, 2023 at 4:55 PM Michael Ellerman wrote:
>
> Ghanshyam Agrawal writes:
> > Fixed some typos
> >
> > Signed-off-by: Ghanshyam Agrawal
> > ---
> > arch/powerpc/kernel/eeh_pe.c | 6 +++---
> > 1 file changed, 3 insertions(+), 3 deletions(-)
>
> Please also fix the case in
On December 21, 2023 4:16:56 AM PST, Michael Ellerman
wrote:
>Cc +Kees
>
>Christophe Leroy writes:
>> Declaring rodata_enabled and mark_rodata_ro() at all time
>> helps removing related #ifdefery in C files.
>>
>> Signed-off-by: Christophe Leroy
>> ---
>> include/linux/init.h | 4
>>
Copy Muchun, which I forgot since the start, sorry.
--
Peter Xu
Matthias Schiffer writes:
> MMU_FTR_USE_HIGH_BATS is set for G2-based cores (G2_LE, e300cX), but the
> high BATs need to be enabled in HID2 to work. Add register definitions
> and introduce a G2 variant of __setup_cpu_603.
>
> This fixes boot on CPUs like the MPC5200B with STRICT_KERNEL_RWX
On 12/21/23 at 11:36am, Sourabh Jain wrote:
..
> > > > diff --git a/include/uapi/linux/kexec.h b/include/uapi/linux/kexec.h
> > > > index 3d5b3d757bed..df6a6505e267 100644
> > > > --- a/include/uapi/linux/kexec.h
> > > > +++ b/include/uapi/linux/kexec.h
> > > > @@ -13,7 +13,7 @@
> > > >
Linus Walleij writes:
> On Thu, Dec 21, 2023 at 1:04 PM Michael Ellerman wrote:
>
>> The VDSO needs PAGE_SHIFT/SIZE defined, so it includes asm/page.h.
>>
>> However when COMPAT=y the VDSO is built 32-bit, even though the kernel
>> is 64-bit. That can lead to odd warnings because some kernel
Em Thu, Dec 21, 2023 at 02:03:13PM +0800, Jing Zhang escreveu:
> cmn.json contains UTF-8 characters in brief description which
> could break the perf build on some distros.
>
> Fix this issue by removing the UTF-8 characters from cmn.json.
>
> without the fix:
> $find tools/perf/pmu-events/
Le 21/12/2023 à 15:25, Steven Rostedt a écrit :
> On Thu, 21 Dec 2023 10:46:08 +
> Christophe Leroy wrote:
>
>>> To enable ftrace, the nop at function entry is changed to an
>>> unconditional branch to 'tramp'. The call to ftrace_caller() may be
>>> updated to ftrace_regs_caller()
On Thu, 14 Dec 2023, George Stark wrote:
> This patch series fixes the problem of devm_led_classdev_register misusing.
>
> The basic problem is described in [1]. Shortly when
> devm_led_classdev_register()
> is used then led_classdev_unregister() called after driver's remove()
> callback.
>
On Thu, 21 Dec 2023 10:46:08 +
Christophe Leroy wrote:
> > To enable ftrace, the nop at function entry is changed to an
> > unconditional branch to 'tramp'. The call to ftrace_caller() may be
> > updated to ftrace_regs_caller() depending on the registered ftrace ops.
> > On 64-bit powerpc,
Le 21/12/2023 à 13:45, Matthias Schiffer a écrit :
> MMU_FTR_USE_HIGH_BATS is set for G2-based cores (G2_LE, e300cX), but the
> high BATs need to be enabled in HID2 to work. Add register definitions
> and introduce a G2 variant of __setup_cpu_603.
Well spotted.
I have a mpc8321, hence e300c2.
MMU_FTR_USE_HIGH_BATS is set for G2-based cores (G2_LE, e300cX), but the
high BATs need to be enabled in HID2 to work. Add register definitions
and introduce a G2 variant of __setup_cpu_603.
This fixes boot on CPUs like the MPC5200B with STRICT_KERNEL_RWX enabled.
Fixes: e4d6654ebe6e
On Thu, Dec 21, 2023 at 1:04 PM Michael Ellerman wrote:
> The VDSO needs PAGE_SHIFT/SIZE defined, so it includes asm/page.h.
>
> However when COMPAT=y the VDSO is built 32-bit, even though the kernel
> is 64-bit. That can lead to odd warnings because some kernel constants
> are 64-bit, but
Cc +Kees
Christophe Leroy writes:
> Declaring rodata_enabled and mark_rodata_ro() at all time
> helps removing related #ifdefery in C files.
>
> Signed-off-by: Christophe Leroy
> ---
> include/linux/init.h | 4
> init/main.c | 21 +++--
> 2 files changed, 7
Christophe Leroy writes:
> Le 14/12/2023 à 06:55, Nicholas Miehlbradt a écrit :
>> All elements of bounce_buffer are eventually read and passed to the
>> hypervisor so it should probably be fully initialized.
>
> should or shall ?
>
>>
>> Signed-off-by: Nicholas Miehlbradt
>
> Should be a
The VDSO needs PAGE_SHIFT/SIZE defined, so it includes asm/page.h.
However when COMPAT=y the VDSO is built 32-bit, even though the kernel
is 64-bit. That can lead to odd warnings because some kernel constants
are 64-bit, but unsigned long is 32-bit, for example:
VDSO32C
When compiling with gcc version 14.0.0 20231220 (experimental)
and W=1, I've noticed the following warning:
drivers/soc/fsl/dpio/dpio-service.c: In function
'dpaa2_io_service_enqueue_multiple_desc_fq':
drivers/soc/fsl/dpio/dpio-service.c:526:29: warning: 'kcalloc' sizes specified
with 'sizeof'
Ghanshyam Agrawal writes:
> Fixed some typos
>
> Signed-off-by: Ghanshyam Agrawal
> ---
> arch/powerpc/kernel/eeh_pe.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
Please also fix the case in arch/powerpc/include/asm/eeh.h
The subject should use the correct prefix. You can
Le 21/12/2023 à 11:33, Matthias Schiffer a écrit :
> [Vous ne recevez pas souvent de courriers de
> matthias.schif...@ew.tq-group.com. Découvrez pourquoi ceci est important à
> https://aka.ms/LearnAboutSenderIdentification ]
>
> On Wed, 2023-12-20 at 14:55 +, Christophe Leroy wrote:
>>>
Geoff Levand writes:
> Hi Kevin,
>
> On 12/21/23 13:45, Kevin Hao wrote:
>> The kernel thread function ps3_probe_thread() invokes the try_to_freeze()
>> in its loop. But all the kernel threads are non-freezable by default.
>> So if we want to make a kernel thread to be freezable, we have to
On Tue, 05 Dec 2023 16:11:05 +1100, Michael Ellerman wrote:
> Aneesh and Naveen are helping out with some aspects of upstream
> maintenance, add them as reviewers.
>
>
Applied to powerpc/fixes.
[1/1] MAINTAINERS: powerpc: Add Aneesh & Naveen
On Sat, 25 Nov 2023 15:51:04 -0800, Haren Myneni wrote:
> The hypervisor returns migration failure if all VAS windows are not
> closed. During pre-migration stage, vas_migration_handler() sets
> migration_in_progress flag and closes all windows from the list.
> The allocate VAS window routine
Le 08/12/2023 à 17:30, Naveen N Rao a écrit :
> Function profile sequence on powerpc includes two instructions at the
> beginning of each function:
>
> mflrr0
> bl ftrace_caller
>
> The call to ftrace_caller() gets nop'ed out during kernel boot and is
> patched in when
On Fri, 01 Dec 2023 18:56:05 +0530, Vaibhav Jain wrote:
> This patch series introduces series of performance improvements to recently
> added support for Nested APIv2 PPC64 Guests via [1]. Details for Nested
> APIv2 for PPC64 Guests is available in Documentation/powerpc/kvm-nested.rst.
>
> This
On Mon, 04 Dec 2023 15:06:37 +0530, aneesh.ku...@kernel.org wrote:
> There used to be a dependency on _PAGE_PRIVILEGED with pte_savedwrite.
> But that got dropped by
> commit 6a56ccbcf6c6 ("mm/autonuma: use can_change_(pte|pmd)_writable() to
> replace savedwrite")
>
> With the change in this
On Thu, 14 Dec 2023 23:37:10 +0530, Srikar Dronamraju wrote:
> PowerVM systems configured in shared processors mode have some unique
> challenges. Some device-tree properties will be missing on a shared
> processor. Hence some sched domains may not make sense for shared processor
> systems.
>
>
On Fri, 08 Dec 2023 22:00:39 +0530, Naveen N Rao wrote:
> Early RFC.
>
> This series attempts to address couple of issues with the existing
> support for ftrace on powerpc, with a view towards improving performance
> when ftrace is not enabled. See patch 6 for more details.
>
> Patches 7 and 8
On Tue, 12 Dec 2023 11:01:47 -0600, Nathan Lynch wrote:
> Add character devices that expose PAPR-specific system parameters and
> VPD to user space.
>
> The problem: important platform features are enabled on Linux VMs
> through the powerpc-specific rtas() syscall in combination with
> writeable
On Tue, 05 Dec 2023 16:12:39 +1100, Michael Ellerman wrote:
> Christophe volunteered[1] to maintain PPC83XX.
>
> 1:
> https://lore.kernel.org/all/7b1bf4dc-d09d-35b8-f4df-16bf00429...@csgroup.eu/
>
>
Applied to powerpc/next.
[1/1] MAINTAINERS: powerpc: Transfer PPC83XX to Christophe
On Wed, 29 Nov 2023 00:27:44 +1100, Michael Ellerman wrote:
> The FPU & VMX preemption tests do not check for errors returned by the
> low-level asm routines, preempt_fpu() / preempt_vsx() respectively.
> That means any register corruption detected by the asm routines does not
> result in a test
On Wed, 06 Dec 2023 22:55:45 +1100, Michael Ellerman wrote:
> There's no need to use $(ARCH) for references to the arch directory in
> the source tree, it is always arch/powerpc.
>
>
Applied to powerpc/next.
[1/4] powerpc/Makefile: Don't use $(ARCH) unnecessarily
On Thu, 16 Nov 2023 17:50:32 +0530, Kajol Jain wrote:
> To access hv-gpci kernel interface files data, the
> "Enable Performance Information Collection" option has to be set
> in hmc. Incase that option is not set and user try to read
> the interface files, it should give error message as
>
On Tue, 12 Dec 2023 19:44:58 +0100, David Heidelberg wrote:
> fsl,tmu-calibration is in u32-matrix. Use matching property syntax.
> No functional changes. Fixes warnings as:
> ...
>
> [...]
Applied to powerpc/next.
[1/1] powerpc/fsl: fix the schema check errors for fsl,tmu-calibration
On Mon, 04 Dec 2023 10:32:23 +0800, Kunwu Chan wrote:
> kasprintf() returns a pointer to dynamically allocated memory
> which can be NULL upon failure. Ensure the allocation was successful
> by checking the pointer validity.
>
>
Applied to powerpc/next.
[1/1] powerpc/mm: Fix null-pointer
On Sun, 26 Nov 2023 17:57:39 +0800, Kunwu Chan wrote:
> kasprintf() returns a pointer to dynamically allocated memory
> which can be NULL upon failure.
>
>
Applied to powerpc/next.
[1/1] powerpc/powernv: Fix null pointer dereference in opal_powercap_init
On Fri, 08 Dec 2023 16:59:37 +0800, Kunwu Chan wrote:
> kasprintf() returns a pointer to dynamically allocated memory
> which can be NULL upon failure.
> Add a null pointer check, and release 'ent' to avoid memory leaks.
>
>
Applied to powerpc/next.
[1/1] powerpc/powernv: Add a null pointer
On Mon, 27 Nov 2023 11:07:55 +0800, Kunwu Chan wrote:
> kasprintf() returns a pointer to dynamically allocated memory
> which can be NULL upon failure.
>
>
Applied to powerpc/next.
[1/1] powerpc/powernv: Add a null pointer check in opal_event_init
On Sun, 26 Nov 2023 17:37:19 +0800, Kunwu Chan wrote:
> kasprintf() returns a pointer to dynamically allocated memory
> which can be NULL upon failure.
>
>
Applied to powerpc/next.
[1/1] powerpc/imc-pmu: Fix null pointer dereference in update_events_in_group
On Tue, 14 Nov 2023 12:42:19 +0530, Aneesh Kumar K.V wrote:
> No functional change in this patch. A helper is added to find if
> vcpu is dispatched by hypervisor. Use that instead of opencoding.
> Also clarify some of the comments.
>
>
Applied to powerpc/next.
[1/1] powerpc/sched: Cleanup
On Wed, 20 Sep 2023 16:27:05 +0530, Aditya Gupta wrote:
> Since below commit, address mapping for vmemmap has changed for Radix
> MMU, where address mapping is stored in kernel page table itself,
> instead of earlier used 'vmemmap_list'.
>
> commit 368a0590d954 ("powerpc/book3s64/vmemmap:
On Wed, 2023-12-20 at 14:55 +, Christophe Leroy wrote:
> > Le 19/12/2023 à 14:34, Matthias Schiffer a écrit :
> > > > [Vous ne recevez pas souvent de courriers de
> > > > matthias.schif...@ew.tq-group.com. Découvrez pourquoi ceci est
> > > > important à
Now that rodata_enabled is always declared, remove #ifdef
and define a single version of strict_kernel_rwx_enabled().
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/mmu.h | 9 +
1 file changed, 1 insertion(+), 8 deletions(-)
diff --git a/arch/powerpc/include/asm/mmu.h
Now that rodata_enabled is declared at all time, the #ifdef
CONFIG_STRICT_MODULE_RWX can be removed.
Signed-off-by: Christophe Leroy
---
kernel/module/strict_rwx.c | 6 +-
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/kernel/module/strict_rwx.c b/kernel/module/strict_rwx.c
Declaring rodata_enabled and mark_rodata_ro() at all time
helps removing related #ifdefery in C files.
Signed-off-by: Christophe Leroy
---
include/linux/init.h | 4
init/main.c | 21 +++--
2 files changed, 7 insertions(+), 18 deletions(-)
diff --git
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