On Sun, Sep 22, 2024 at 04:39:53PM +0530, Ritesh Harjani wrote:
> Luming Yu writes:
>
> > From: Yu Luming
> >
> > ppc always do its own tracking for batch tlb. By trivially enabling
> > the ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH in ppc, ppc arch can re-use
> > com
On Thu, Sep 19, 2024 at 01:22:21PM +1000, Michael Ellerman wrote:
> Luming Yu writes:
> > From: Yu Luming
> >
> > ppc always do its own tracking for batch tlb.
>
> I don't think it does? :)
>
> I think you're referring to the batch handling in
&g
-off-by: Luming Yu
---
arch/powerpc/Kconfig| 1 +
arch/powerpc/include/asm/tlbbatch.h | 30 +
2 files changed, 31 insertions(+)
create mode 100644 arch/powerpc/include/asm/tlbbatch.h
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index
On Fri, Sep 13, 2024 at 02:15:40PM +0200, Christophe Leroy wrote:
>
>
> Le 13/09/2024 à 14:02, Luming Yu a écrit :
>
> > > ...
> > > nothing happens after that.
> > reproduced with ppc64_defconfig
> > [0.818972][T1] Run /init as init process
On Fri, Sep 13, 2024 at 10:30:56AM +0200, Christophe Leroy wrote:
>
>
> Le 13/09/2024 à 09:38, Luming Yu a écrit :
> > On Fri, Sep 13, 2024 at 08:54:12AM +0200, Christophe Leroy wrote:
> > >
> > >
> > > Le 13/09/2024 à 03:40, Luming Yu a écrit :
> &
On Fri, Sep 13, 2024 at 08:54:12AM +0200, Christophe Leroy wrote:
>
>
> Le 13/09/2024 à 03:40, Luming Yu a écrit :
> > On Thu, Sep 12, 2024 at 12:23:29PM +0200, Christophe Leroy wrote:
> > >
> > >
> > > Le 12/09/2024 à 10:24, L
On Thu, Sep 12, 2024 at 12:23:29PM +0200, Christophe Leroy wrote:
>
>
> Le 12/09/2024 à 10:24, Luming Yu a écrit :
> > From: Yu Luming
> >
> > convert powerpc entry code in syscall and fault to use syscall_work
> > and irqentry_state as well a
From: Yu Luming
clean up do_syscall_trace_enter/leave and do_seccomp
Signed-off-by: Luming Yu
---
arch/powerpc/kernel/interrupt.c | 5 -
arch/powerpc/kernel/ptrace/ptrace.c | 141
2 files changed, 146 deletions(-)
diff --git a/arch/powerpc/kernel
From: Yu Luming
convert powerpc entry code in syscall and fault to use syscall_work
and irqentry_state as well as common calls from generic entry infrastructure.
Signed-off-by: Luming Yu
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/include/asm/hw_irq.h | 5 +
arch
Wed, Aug 28, 2024 at 09:27:23AM +0200, Christophe Leroy wrote:
>
>
> Le 28/08/2024 à 08:50, Luming Yu a écrit :
> > On Wed, Aug 28, 2024 at 07:46:52AM +0200, Christophe Leroy wrote:
> > > Hi,
> > >
> > > Le 28/08/2024 à 05:17, 虞陆铭 a écrit :
> >
On Wed, Aug 28, 2024 at 09:27:23AM +0200, Christophe Leroy wrote:
>
>
> Le 28/08/2024 à 08:50, Luming Yu a écrit :
> > On Wed, Aug 28, 2024 at 07:46:52AM +0200, Christophe Leroy wrote:
> > > Hi,
> > >
> > > Le 28/08/2024 à 05:17, 虞陆铭 a écrit :
> >
gt; pr_err("can't stop test_user_return
> > kthread for cpu %d", i);
> > }
> > }
> > free_percpu(user_return_test);
> > return;
> > }
> >
> > module_init(ini
ff-by: Luming Yu
---
v1->v2: solve powernv nx-common-powernv.c non-SMP kernel compile issue found by
lkp bot.
v0->v1: solve powernv vas driver non-SMP kernel compile issue found by lkp bot.
---
arch/powerpc/platforms/powernv/Kconfig| 1 -
arch/powerpc/platforms/powernv/opal-imc.c | 1 +
a
up kernel is quite useful to silicon validation, despite
it is rare to be found in server productions. the fixes are
obvious. Not like IBM pSeries, it may be not necessary
to have powernv SMP forced. It is difficult to compile a
up kernel for pSerises as I've tried.
Signed-off-by: Lumi
up kernel is quite useful to silicon validation, despite
it is rare to be found in server productions. the fixes are
obvious. Not like IBM pSeries, it may be not necessary
to have powernv SMP forced. It is difficult to compile a
up kernel for pSerises as I've tried.
Signed-off-by: Lumi
enable HAVE_DMA_CONTIGUOUS for general use of
CMA on powerpc.
Signed-off-by: Luming Yu
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/kernel/setup-common.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index b968068cc04a
The support for user return notifier infrastructure
is manually hooked into powerpc architecture.
Signed-off-by: Luming Yu
---
v0->v1: add user return notifier arch hook manually.
---
arch/powerpc/Kconfig| 1 +
arch/powerpc/include/asm/entry-common.h |
Before we have powerpc to use the generic entry infrastructure,
the call to fire user return notifier is made temporarily in powerpc
entry code.
Signed-off-by: Luming Yu
---
arch/powerpc/kernel/interrupt.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/kernel/interrupt.c b
On Mon, Dec 11, 2023 at 10:40:38PM +1100, Michael Ellerman wrote:
> Hi Luming Yu,
>
> Luming Yu writes:
> > ppc appears to have already supported cmpxchg-local atomic semantics
> > that is defined by the kernel convention of the feature.
> > Add this_cpu_cmpxchg pp
The support for user return notifier infrastructure
is hooked into powerpc architecture.
---
arch/powerpc/Kconfig| 1 +
arch/powerpc/include/asm/entry-common.h | 16
arch/powerpc/include/asm/thread_info.h | 2 ++
arch/powerpc/kernel/process.c | 2
enable arch feature HAVE_CMPXCHG_LOCAL for ppc by default
Signed-off-by: Luming Yu
---
arch/powerpc/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 6f105ee4f3cf..c10229c0243c 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc
ppc appears to have already supported cmpxchg-local atomic semantics
that is defined by the kernel convention of the feature.
Add this_cpu_cmpxchg ppc local for the performance benefit of arch
sepcific implementation than asm-generic c verison of the locking API.
Signed-off-by: Luming Yu
0.0 pci_enable_device() blocked, no PE assigned.
It appears that the pci_dn object is reused with only pe_number
clobbered in the case. And a simple call to pnv_ioda_setup_dev_PE should
get PE number back and solve the problem.
Signed-off-by: Luming Yu
---
v0 -> v1:
-clean up garbage leaked in git format
0.0 pci_enable_device() blocked, no PE assigned.
It appears that the pci_dn object is reused with only pe_number
clobbered in the case. And a simple call to pnv_ioda_setup_dev_PE should
get PE number back and solve the problem.
Signed-off-by: Luming Yu
---
arch/powerpc/platforms/powernv/pci-ioda.c |
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