> On 12 Sep 2022, at 8:33 pm, Nicholas Piggin wrote:
>
> On Wed Aug 24, 2022 at 12:05 PM AEST, Rohan McLure wrote:
>> Forward declare all syscall handler prototypes where a generic prototype
>> is not provided in either linux/syscalls.h or linux/compat.h in
>> asm/syscalls.h. This is required
> > Add a string property to assign ASoC platform driver name. It also
> > represents the rpmsg channel this sound card sits on. This property
> > can be omitted if there is only one sound card and it sits on
> > "rpmsg-audio-channel".
> >
> > Signed-off-by: Chancel Liu
> > ---
> > .../devicetree
There were commits which did code refactoring and converting some of kvm
assembly routines to C. When doing it, many of the asm-offset macro
definitions were missed to remove. Patchset here removes those.
Patch1 removes usage of KVM_TLB_SETS macro from the asm-offset
Patch2 removes KVM_RADIX macr
Commit 2e1ae9cd56f8 ("KVM: PPC: Book3S HV: Implement radix
prefetch workaround by disabling MMU") removed usage of
KVM_TLB_SETS macro as part of fixing radix prefetch workaround.
But the patch missed to remove the asm-offset macro definition
which was used in the assembly files and now this is un-u
Commit 9769a7fd79b6 ("KVM: PPC: Book3S HV: Remove radix
guest support from P7/8 path") removed the radix guest
support from P7/8 path since the P9 path now supports of
all the supported radix guest. But missed to remove
KVM_RADIX from the asm-offset. Patch fixes by removing it.
Fixes: 9769a7fd79b6
Commit fae5c9f3664b ("KVM: PPC: Book3S HV: remove ISA v3.0 and v3.1
support from P7/8 path") moved code path for the kvm guest entry/exit
for p7/8 from aseembly to C. But the patch missed to remove the
asm-offset macro definitions which were used in the assembly files
and now they are un-used. Patc
From: Kajol Jain
Commit 57dc0eed73ca ("KVM: PPC: Book3S HV P9: Implement PMU save/restore
in C") removed the PMU save/restore functions from assembly code and
implemented these functions in C, for power9 and later platforms.
After the code refactoring, Performance Monitoring Unit (PMU) registers
On 13.09.22 07:22, Alistair Popple wrote:
As noted by John Hubbard the original test relied on side effects of the
implementation of migrate_vma_setup() to detect if pages had been
swapped to disk or not. This is subject to change in future so
explicitly check for swap entries via pagemap instead
Le 13/09/2022 à 09:40, Disha Goel a écrit :
> There were commits which did code refactoring and converting some of kvm
> assembly routines to C. When doing it, many of the asm-offset macro
> definitions were missed to remove. Patchset here removes those.
>
> Patch1 removes usage of KVM_TLB_SETS
David Hildenbrand writes:
> On 13.09.22 07:22, Alistair Popple wrote:
>> As noted by John Hubbard the original test relied on side effects of the
>> implementation of migrate_vma_setup() to detect if pages had been
>> swapped to disk or not. This is subject to change in future so
>> explicitly
As platform_driver_register() can return error numbers,
it should be better to return platform_driver_register()
instead of return 0.
Fixes: be7ecbd240b2 ("soc: fsl: qe: convert QE interrupt controller to
platform_device")
Signed-off-by: Jiasheng Jiang
---
drivers/soc/fsl/qe/qe_ic.c | 3 +--
1
On Fri, Aug 12, 2022 at 02:14:21PM -0500, Nathan Lynch wrote:
> Laurent Dufour writes:
> > Le 30/07/2022 à 02:04, Nathan Lynch a écrit :
> >> +static long lparctl_get_sysparm(struct lparctl_get_system_parameter
> >> __user *argp)
> >> +{
> >> + struct lparctl_get_system_parameter *gsp;
> >> + l
Le 12/09/2022 à 17:22, Christophe Leroy a écrit :
Le 12/09/2022 à 15:46, Lukas Bulwahn a écrit :
Hi Joe, hi Ben,
While reviewing some kernel config, I came across
CONFIG_DCACHE_WORD_ACCESS and tried to understand its purpose.
Then, I discovered this RFC patch from 2014 that seems never to
On 13.9.2022 8.22, Alistair Popple wrote:
As noted by John Hubbard the original test relied on side effects of the
implementation of migrate_vma_setup() to detect if pages had been
swapped to disk or not. This is subject to change in future so
explicitly check for swap entries via pagemap inst
Le 12/09/2022 à 10:20, Sathvika Vasireddy a écrit :
> This patch enables objtool --mcount on powerpc, and adds implementation
> specific to powerpc.
>
> Signed-off-by: Sathvika Vasireddy
> ---
> arch/powerpc/Kconfig | 1 +
> tools/objtool/arch/powerpc/decode.c
> On 12-Sep-2022, at 12:20 PM, Hari Bathini wrote:
>
> Since commit e641eb03ab2b0 ("powerpc: Fix up the kdump base cap to
> 128M") memory for kdump kernel has been reserved at an offset of
> 128MB. This held up well for a long time before running into boot
> failure on LPARs having a lot of co
commit b55878c90ab9 ("perf test: Add test for branch stack sampling")
added test for branch stack sampling. There is a sanity check in the
beginning to skip the test if the hardware doesn't support branch stack
sampling.
Snippet
<<>>
skip the test if the hardware doesn't support branch stack sampl
For PERF_SAMPLE_BRANCH_STACK sample type, different branch_sample_type
ie branch filters are supported. The branch filters are requested via
event attribute "branch_sample_type". Multiple branch filters can be
passed in event attribute.
Example:
perf record -b -o- -B --branch-filter any,ind_call t
For PERF_SAMPLE_BRANCH_STACK sample type, different branch_sample_type,
ie branch filters are supported. The testcase "bhrb_filter_map_test"
tests the valid and invalid filter maps in different powerpc platforms.
Update this testcase to include scenario to cover multiple branch
filters at sametime.
perf stat includes option to specify aggr_mode to display
per-socket, per-core, per-die, per-node counter details.
Also there is option -A ( AGGR_NONE, -no-aggr ), where the
counter values are displayed for each cpu along with "CPU"
value in one field of the output.
Each of the aggregate mode uses
The perf probe related tests like probe_vfs_getname.sh which
is in "tools/perf/tests/shell" directory have dependency on
debuginfo information in the kernel. Currently debuginfo
check is handled by skip_if_no_debuginfo function in the
file "lib/probe_vfs_getname.sh". skip_if_no_debuginfo function
l
On Mon, Sep 12, 2022 at 01:50:06PM +0530, Sathvika Vasireddy wrote:
> In a subsequent patch, we would want to annotate powerpc assembly functions
> with SYM_FUNC_START_LOCAL macro. This macro depends on __ALIGN macro.
>
> The default expansion of __ALIGN macro is:
> #define __ALIGN .a
Le 13/09/2022 à 14:03, Peter Zijlstra a écrit :
> On Mon, Sep 12, 2022 at 01:50:06PM +0530, Sathvika Vasireddy wrote:
>> In a subsequent patch, we would want to annotate powerpc assembly functions
>> with SYM_FUNC_START_LOCAL macro. This macro depends on __ALIGN macro.
>>
>> The default expansion
Le 13/09/2022 à 08:11, Christophe Leroy a écrit :
Le 12/09/2022 à 23:16, Pali Rohár a écrit :
My guess would be that something went wrong in the linear map setup,
but it
won't hurt running with "memblock=debug" added to the kernel command
line
to see if there is anything suspicious ther
In interrupt_64.S, formerly entry_64.S, there are two toc entries
created for sys_call_table and compat_sys_call_table.
These are no longer used, since the system call entry was converted from
asm to C, so remove them.
Fixes: 68b34588e202 ("powerpc/64/sycall: Implement syscall entry/exit logic in
Ping? It's been a while and probably got lost :-/
On 18/05/2022 16:27, Alexey Kardashevskiy wrote:
On 5/4/22 17:48, Alexey Kardashevskiy wrote:
When introduced, IRQFD resampling worked on POWER8 with XICS. However
KVM on POWER9 has never implemented it - the compatibility mode code
("XICS-on-
On Tue, Sep 13, 2022 at 12:21:51PM +, Christophe Leroy wrote:
> > Like mentioned last time; I'm fixing this (but you're right to not wait
> > on that), that said, would it make sense to write it like:
> >
> > #define __ALIGN .balign 4
> > #define __ALIGN_STR __stringify(__ALIGN)
>
Le 12/09/2022 à 03:47, Rohan McLure a écrit :
> Add the following helpers for detecting whether a page table entry
> is a leaf and is accessible to user space.
>
> * pte_user_accessible_page
> * pmd_user_accessible_page
> * pud_user_accessible_page
>
> The heavy lifting is done by pte_use
On Mon, Sep 12, 2022 at 01:50:04PM +0530, Sathvika Vasireddy wrote:
> Christophe Leroy (4):
> objtool: Fix SEGFAULT
> objtool: Use target file endianness instead of a compiled constant
> objtool: Use target file class size instead of a compiled constant
> Sathvika Vasireddy (12):
> objtool
Le 13/09/2022 à 03:21, Rohan McLure a écrit :
>
>
>> On 12 Sep 2022, at 4:11 pm, Christophe Leroy
>> wrote:
>>
>>
>>
>> Le 12/09/2022 à 03:47, Rohan McLure a écrit :
>>> On creation and clearing of a page table mapping, instrument such calls
>>> by invoking page_table_check_pte_set and page_t
Michal Suchánek writes:
> On Fri, Aug 12, 2022 at 02:14:21PM -0500, Nathan Lynch wrote:
>> Laurent Dufour writes:
>> > Le 30/07/2022 à 02:04, Nathan Lynch a écrit :
>> >> +static long lparctl_get_sysparm(struct lparctl_get_system_parameter
>> >> __user *argp)
>> >> +{
>> >> + struct lparctl_get
On Tue, Sep 13, 2022 at 10:59:56AM -0500, Nathan Lynch wrote:
> Michal Suchánek writes:
>
> > On Fri, Aug 12, 2022 at 02:14:21PM -0500, Nathan Lynch wrote:
> >> Laurent Dufour writes:
> >> > Le 30/07/2022 à 02:04, Nathan Lynch a écrit :
> >> >> +static long lparctl_get_sysparm(struct lparctl_get
Michal Suchánek writes:
> On Tue, Sep 13, 2022 at 10:59:56AM -0500, Nathan Lynch wrote:
>> Michal Suchánek writes:
>>
>> > On Fri, Aug 12, 2022 at 02:14:21PM -0500, Nathan Lynch wrote:
>> >> Laurent Dufour writes:
>> >> > Le 30/07/2022 à 02:04, Nathan Lynch a écrit :
>> >> >> +static long lparc
On Mon, 2022-09-12 at 14:58 -0500, Nathan Lynch wrote:
> Leonardo Brás writes:
> > On Fri, 2022-09-09 at 09:04 -0500, Nathan Lynch wrote:
> > > Leonardo Brás writes:
> > > > On Wed, 2022-09-07 at 17:01 -0500, Nathan Lynch wrote:
> > > > > At the time this was submitted by Leonardo, I confirmed --
On 09-09-22, 11:05, Sean Anderson wrote:
>
> I noticed in patchwork [1] that this entire series is marked as "Changes
> Requested," despite having received only automated feedback on one patch
> in the series. I am concerned about this because last time this occurred
> [2], the series received no
On Mon, Sep 12, 2022 at 02:17:36PM +, Michael Matz wrote:
> Hey,
Hi Michael,
Thanks for looking at this.
> On Mon, 12 Sep 2022, Borislav Petkov wrote:
>
> > Micha, any opinions on the below are appreciated.
> >
> > On Fri, Sep 09, 2022 at 11:07:04AM -0700, Josh Poimboeuf wrote:
>
> > > di
On Tue, Sep 13, 2022 at 03:51:44PM -0700, Indu Bhagat wrote:
> Curious to know what all features of objtool rely on the need to reverse
> engineer the control flow graph. Is it a larger set or it is only for ORC
> generation ?
Objtool features which rely on the CFG:
- Frame pointer rule validatio
On Tue, Sep 13, 2022 at 04:13:52PM +0200, Peter Zijlstra wrote:
> On Mon, Sep 12, 2022 at 01:50:04PM +0530, Sathvika Vasireddy wrote:
> > Christophe Leroy (4):
> > objtool: Fix SEGFAULT
> > objtool: Use target file endianness instead of a compiled constant
> > objtool: Use target file class s
Hi Josh,
On 9/9/22 11:07, Josh Poimboeuf wrote:
Hi,
Here's a preview of what I'm planning to discuss at the LPC toolchains
microconference. Feel free to start the discussion early :-)
This is a proposal for some new minor GCC/Clang features which would
help objtool greatly.
Background
-
During the cpu offlining, the sub functions of xive_teardown_cpu will
call __lock_acquire when CONFIG_LOCKDEP=y. The latter function will
travel RCU protected list, so "WARNING: suspicious RCU usage" will be
triggered.
Try to protect cpu offlining by RCU offline lock.
Tested on PPC VM of Open Sou
From: Zhouyi Zhou
During the cpu offlining, the sub functions of xive_teardown_cpu will
call __lock_acquire when CONFIG_LOCKDEP=y. The latter function will
travel RCU protected list, so "WARNING: suspicious RCU usage" will be
triggered.
Try to protect cpu offlining by RCU offline lock.
Tested o
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