Christophe Leroy writes:
> Today we have the following IBATs allocated:
>
> ---[ Instruction Block Address Translation ]---
> 0: 0xc000-0xc03f 0x 4M Kernel x m
> 1: 0xc040-0xc05f 0x0040 2M Kernel x m
> 2:
Sort key p_stage_cyc is used to present the latency
cycles spend in pipeline stages. perf tool has local
p_stage_cyc sort key to display this info. There is no
global variant available for this sort key. local variant
shows latency in a sinlge sample, whereas, global value
will be useful to
Update the arch_support_sort_key() function in powerpc
to enable presenting local and global variants of sort
key: p_stage_cyc. Update the "se_header" strings for
these in arch_perf_header_entry() function along with
instruction latency.
Signed-off-by: Athira Rajeev
Reported-by: Namhyung Kim
Mark Rutland writes:
> On Tue, Nov 30, 2021 at 04:43:31PM -0600, Rob Herring wrote:
>> +linuxppc-dev
Sorry missed this until now ...
>> On Wed, Nov 24, 2021 at 09:33:47PM +0800, Calvin Zhang wrote:
>> > Reserved memory regions in /memreserve node aren't and shouldn't
>> > be referenced
On Thu, 2021-12-02 at 20:35 +, Leo Li wrote:
>
> > -Original Message-
> > From: Joakim Tjernlund
> > Sent: Wednesday, December 1, 2021 8:19 AM
> > To: regressi...@leemhuis.info; Leo Li ;
> > eugene_bordenkirc...@selinc.com; linux-...@vger.kernel.org; linuxppc-
> >
On Thu, Dec 2, 2021 at 3:30 PM Andy Shevchenko
wrote:
>
> On Thu, Dec 02, 2021 at 08:01:54PM +, Leo Li wrote:
> > > From: Andy Shevchenko
> > > Sent: Thursday, December 2, 2021 3:33 AM
> > > On Wed, Dec 01, 2021 at 01:41:16PM -0600, Li Yang wrote:
> > > > On Tue, Nov 23, 2021 at 10:32 AM
On Thu, Dec 02, 2021 at 08:01:54PM +, Leo Li wrote:
> > From: Andy Shevchenko
> > Sent: Thursday, December 2, 2021 3:33 AM
> > On Wed, Dec 01, 2021 at 01:41:16PM -0600, Li Yang wrote:
> > > On Tue, Nov 23, 2021 at 10:32 AM Andy Shevchenko
> > > wrote:
...
> > > The build test is good. I
Replace kthread_create/kthread_bind/wake_up_process() with
kthread_run_on_cpu() to simplify the code.
Signed-off-by: Cai Huoqing
---
drivers/soc/fsl/qbman/qman_test_stash.c | 6 ++
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/soc/fsl/qbman/qman_test_stash.c
> -Original Message-
> From: Joakim Tjernlund
> Sent: Wednesday, December 1, 2021 8:19 AM
> To: regressi...@leemhuis.info; Leo Li ;
> eugene_bordenkirc...@selinc.com; linux-...@vger.kernel.org; linuxppc-
> d...@lists.ozlabs.org
> Cc: gre...@linuxfoundation.org; ba...@kernel.org
>
> -Original Message-
> From: Andy Shevchenko
> Sent: Thursday, December 2, 2021 3:33 AM
> To: Leo Li
> Cc: linuxppc-dev@lists.ozlabs.org; linux-ker...@vger.kernel.org; linux-arm-
> ker...@lists.infradead.org; Qiang Zhao
> Subject: Re: [PATCH v2 3/3] soc: fsl: Replace kernel.h with
On Sat, Nov 27, 2021 at 02:18:51AM +0100, Thomas Gleixner wrote:
> No point in looking up things over and over. Just look up the associated
> irq data and work from there.
>
> No functional change.
>
> Signed-off-by: Thomas Gleixner
Acked-by: Wei Liu
Nicholas Piggin writes:
> Compiling out hash support code when CONFIG_PPC_64S_HASH_MMU=n saves
> 128kB kernel image size (90kB text) on powernv_defconfig minus KVM,
> 350kB on pseries_defconfig minus KVM, 40kB on a tiny config.
>
> Signed-off-by: Nicholas Piggin
Tested this series on a P9.
patch_exception() is dedicated to book3e/64 is nothing more than
a normal use of patch_branch(), so move it into a place dedicated
to book3e/64.
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/code-patching.h | 7 ---
arch/powerpc/include/asm/exception-64e.h | 4
Code patching selftests are half of code-patching.c.
As they are guarded by CONFIG_CODE_PATCHING_SELFTESTS,
they'd be better in their own file.
Also add a missing __init for instr_is_branch_to_addr()
Signed-off-by: Christophe Leroy
---
arch/powerpc/lib/Makefile | 2 +
To enable moving selftests in their own C file in following patch,
move instr_is_branch_iform() and instr_is_branch_bform()
to code-patching.h
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/code-patching.h | 15 +++
arch/powerpc/lib/code-patching.c | 15
Split do_patch_instruction() in two functions, the caller doing the
spin locking and the callee doing everything else.
And remove a few unnecessary initialisations and intermediate
variables.
This allows the callee to return from anywhere in the function.
Signed-off-by: Christophe Leroy
---
Use the dedicated test_trampoline function for testing prefixed
patching like other tests and remove the hand coded assembly stuff.
Signed-off-by: Christophe Leroy
---
arch/powerpc/lib/Makefile | 2 +-
arch/powerpc/lib/code-patching.c | 24 +---
code-patching has been working for years now, time has come to
remove debugging messages.
Change useful message to KERN_INFO and remove other ones.
Also add KERN_ERR to check() macro and change it into a do/while
to make checkpatch happy.
Signed-off-by: Christophe Leroy
---
This series applies
A new state has been added by commit d2635f2012a4 ("mm: create a new
system state and fix core_kernel_text()"). That state tells when
initmem is about to be released and is redundant with init_mem_is_free.
Remove init_mem_is_free.
Signed-off-by: Christophe Leroy
---
Do not silentely ignore a failure of create_branch() in
patch_branch(). Return -ERANGE.
Signed-off-by: Christophe Leroy
---
arch/powerpc/lib/code-patching.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c
Use real errors instead of using -1 as error, so that errors
returned by callees can be used towards callers.
Signed-off-by: Christophe Leroy
---
arch/powerpc/lib/code-patching.c | 13 +++--
1 file changed, 3 insertions(+), 10 deletions(-)
diff --git a/arch/powerpc/lib/code-patching.c
pXd_offset() doesn't return NULL. When the base is NULL, it
still adds the offset.
Use pXd_none() to check validity instead. It also improves
performance by folding out none existing levels as pXd_none()
always returns 0 in that case.
Such an error is unexpected, use WARN_ON() so that the caller
The purpose of selftests is to check that instructions are
properly formed. Not to check that they properly run.
For that test it uses normal memory, not special test
memory.
In preparation of a future patch enforcing patch_instruction()
to be used only on valid text areas, implement a
On Wed, Dec 01, 2021 at 01:41:16PM -0600, Li Yang wrote:
> On Tue, Nov 23, 2021 at 10:32 AM Andy Shevchenko
> wrote:
> >
> > On Tue, Nov 16, 2021 at 11:38:01AM +0200, Andy Shevchenko wrote:
> > > On Mon, Nov 15, 2021 at 10:24:36PM +, Leo Li wrote:
> > > > > From: Andy Shevchenko
> > > > >
On Tue, Nov 30, 2021 at 04:43:31PM -0600, Rob Herring wrote:
> +linuxppc-dev
>
> On Wed, Nov 24, 2021 at 09:33:47PM +0800, Calvin Zhang wrote:
> > Reserved memory regions in /memreserve node aren't and shouldn't
> > be referenced elsewhere. So mark them no-map to skip direct mapping
> > for them.
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