It's possible for kernel threads to pick up SLB preload entries if
they are accessing userspace with kthread_use_mm. If the kthread
later is context switched while using a different mm, when it is
switched back it could preload SLBs belonging to the previous mm.
This could lead to data corruption,
Hello Pratik,
On Tue, Jun 15, 2021 at 10:39:49AM +0530, Pratik R. Sampat wrote:
> In the numa=off kernel command-line configuration init_chip_info() loops
> around the number of chips and attempts to copy the cpumask of that node
> which is NULL for all iterations after the first chip.
Thanks for
On Wed, Jul 07, 2021 at 07:38:31PM +0100, Valentin Schneider wrote:
> Powerpc currently resets a CPU's idle task preempt_count to 0 before said
> task starts executing the secondary startup routine (and becomes an idle
> task proper).
>
> This conflicts with commit
>
> f1a0a376ca0c ("sched/core
Hello Pratik,
On Tue, Jul 06, 2021 at 01:54:00PM +0530, Pratik R. Sampat wrote:
> Adds a generic interface to represent the energy and frequency related
> PAPR attributes on the system using the new H_CALL
> "H_GET_ENERGY_SCALE_INFO".
>
> H_GET_EM_PARMS H_CALL was previously responsible for expor
Excerpts from Nicholas Piggin's message of July 2, 2021 10:27 am:
> Excerpts from Madhavan Srinivasan's message of July 1, 2021 11:17 pm:
>>
>> On 6/22/21 4:27 PM, Nicholas Piggin wrote:
>>> KVM PMU management code looks for particular frozen/disabled bits in
>>> the PMU registers so it knows whet
On Tue, 6 Jul 2021 at 17:53, Uwe Kleine-König
wrote:
>
> The driver core ignores the return value of this callback because there
> is only little it can do when a device disappears.
>
> This is the final bit of a long lasting cleanup quest where several
> buses were converted to also return void f
Excerpts from Athira Rajeev's message of July 7, 2021 4:39 pm:
> From: Athira Rajeev
>
> Power10 performance monitoring unit (PMU) driver uses performance
> monitor counter 5 (PMC5) and performance monitor counter 6 (PMC6)
> for counting instructions and cycles. Event used for cycles is
> PM_RUN_
On Wed, 7 Jul 2021 19:38:31 +0100, Valentin Schneider wrote:
> Powerpc currently resets a CPU's idle task preempt_count to 0 before said
> task starts executing the secondary startup routine (and becomes an idle
> task proper).
>
> This conflicts with commit
>
> f1a0a376ca0c ("sched/core: Initi
On Thu, Jul 08, 2021 at 10:56:57PM +1000, Nicholas Piggin wrote:
> Excerpts from Athira Rajeev's message of July 7, 2021 4:39 pm:
> > From: Athira Rajeev
> >
> > Power10 performance monitoring unit (PMU) driver uses performance
> > monitor counter 5 (PMC5) and performance monitor counter 6 (PMC6)
On Tue, Jul 06, 2021 at 12:14:16PM -0700, Nathan Chancellor wrote:
> On 7/6/2021 10:06 AM, Will Deacon wrote:
> > On Tue, Jul 06, 2021 at 04:39:11PM +0100, Robin Murphy wrote:
> > > On 2021-07-06 15:05, Christoph Hellwig wrote:
> > > > On Tue, Jul 06, 2021 at 03:01:04PM +0100, Robin Murphy wrote:
>
Use DEFINE_SHOW_ATTRIBUTE() instead of open coding
open() and fops.
Signed-off-by: Christophe Leroy
---
arch/powerpc/mm/ptdump/bats.c | 14 ++
arch/powerpc/mm/ptdump/hashpagetable.c | 12 +---
arch/powerpc/mm/ptdump/ptdump.c| 13 +
arch/powerpc/mm
note_page_update_state() doesn't use page_size. Remove it.
Could also be removed to note_page() but as a following patch
will remove all current users of note_page(), just leave it as
is for now.
Signed-off-by: Christophe Leroy
---
arch/powerpc/mm/ptdump/ptdump.c | 6 +++---
1 file changed, 3 i
Do the same as commit f8f0d0b6fa20 ("mm: ptdump: reduce level numbers
by 1 in note_page()") and add missing p4d level.
This will align powerpc to the users of generic ptdump.
Signed-off-by: Christophe Leroy
---
arch/powerpc/mm/ptdump/8xx.c | 6 --
arch/powerpc/mm/ptdump/book3s64.c |
This patch converts powerpc to the generic PTDUMP implementation.
Signed-off-by: Christophe Leroy
---
v4: Reworked init of ptdump range
---
arch/powerpc/Kconfig| 2 +
arch/powerpc/Kconfig.debug | 30 ---
arch/powerpc/mm/Makefile| 2 +-
arch/powerpc/mm/mmu_decl.h
Nicholas Piggin writes:
> Use HFSCR facility disabling to implement demand faulting for EBB, with
> a hysteresis counter similar to the load_fp etc counters in context
> switching that implement the equivalent demand faulting for userspace
> facilities.
>
> This speeds up guest entry/exit by avoi
Nicholas Piggin writes:
> Use HFSCR facility disabling to implement demand faulting for TM, with
> a hysteresis counter similar to the load_fp etc counters in context
> switching that implement the equivalent demand faulting for userspace
> facilities.
>
> This speeds up guest entry/exit by avoid
Nicholas Piggin writes:
> Factor duplicated code into a helper function.
>
> Signed-off-by: Nicholas Piggin
Reviewed-by: Fabiano Rosas
> ---
> arch/powerpc/kvm/book3s_hv.c | 24
> 1 file changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/arch/powerpc/kvm/boo
On 2021-07-08 9:29 AM, Abdul Haleem wrote:
Greetings
netdev's net branch fails to build on my PowerPC box with error
net/core/dev.c: In function 'gro_list_prepare':
net/core/dev.c:6015:51: error: 'TC_SKB_EXT' undeclared (first use in this
function); did you mean 'TC_U32_EAT'?
struct tc
fig
x86_64 randconfig-a004-20210707
x86_64 randconfig-a002-20210707
x86_64 randconfig-a005-20210707
x86_64 randconfig-a006-20210707
x86_64 randconfig-a003-20210707
x86_64 randconfig-a001-20210707
i386 randconfig-a00
707
x86_64 randconfig-a001-20210707
i386 randconfig-a006-20210708
i386 randconfig-a004-20210708
i386 randconfig-a001-20210708
i386 randconfig-a003-20210708
i386 randconfig-a005-20210708
i386 randconfig-a00
On Thu Jul 1, 2021 at 2:37 AM CDT, Nicholas Piggin wrote:
> Excerpts from Christopher M. Riedl's message of July 1, 2021 4:53 pm:
> > On Thu Jul 1, 2021 at 1:04 AM CDT, Nicholas Piggin wrote:
> >> Excerpts from Christopher M. Riedl's message of July 1, 2021 3:28 pm:
> >> > On Wed Jun 30, 2021 at 11
On Thu Jul 1, 2021 at 2:51 AM CDT, Nicholas Piggin wrote:
> Excerpts from Christopher M. Riedl's message of July 1, 2021 5:02 pm:
> > On Thu Jul 1, 2021 at 1:12 AM CDT, Nicholas Piggin wrote:
> >> Excerpts from Christopher M. Riedl's message of May 6, 2021 2:34 pm:
> >> > When code patching a STRIC
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