On Wed, 20 Jul 2016 14:34:30 +1000
Alexey Kardashevskiy wrote:
> static long tce_iommu_register_pages(struct tce_container *container,
> @@ -128,10 +129,17 @@ static long tce_iommu_register_pages(struct
> tce_container *container, ((vaddr + size) < vaddr))
> return -EINVAL;
>
>
On Fri, Jul 22, 2016 at 10:57:28PM +1000, Nicholas Piggin wrote:
> Calculating the slice mask can become a signifcant overhead for
> get_unmapped_area. The mask is relatively small and does not change
> frequently, so we can cache it in the mm context.
>
> This saves about 30% kernel time on a 4K
On 07/20/2016 01:26 PM, Kees Cook wrote:
Hi,
[This is now in my kspp -next tree, though I'd really love to add some
additional explicit Tested-bys, Reviewed-bys, or Acked-bys. If you've
looked through any part of this or have done any testing, please consider
sending an email with your "*-by:" l
On Thu, Jul 21, 2016 at 8:41 PM, Suraj Jitindar Singh
wrote:
> vcpu stats are used to collect information about a vcpu which can be viewed
> in the debugfs. For example halt_attempted_poll and halt_successful_poll
> are used to keep track of the number of times the vcpu attempts to and
> successfu
Am Freitag, 22 Juli 2016, 12:54:28 schrieb Michael Ellerman:
> Thiago Jung Bauermann writes:
> > So even if not ideal, the solution above is desirable for powerpc. We
> > would like to preserve the ability of allowing userspace to pass
> > parameters to the OS via the DTB, even if secure boot is e
> "Uma" == Uma Krishnan writes:
Uma> First patch in this set fixes a regression that was casued by the
Uma> Commit 704c4b0ddc03 ("cxlflash: Shutdown notify support for CXL
Uma> Flash cards"), which is currently staged for 4.8 in next/master.
Uma> Second patch updates the Maintainers list for
On Wed, Jul 20, 2016 at 1:03 AM, Mathieu Malaterre
wrote:
> On Fri, Jun 24, 2016 at 10:38 PM, Rob Herring wrote:
>> On Fri, Jun 17, 2016 at 2:51 AM, Mathieu Malaterre
>> wrote:
>>> v3 tested here multiple times ! memleak is now gone.
>>>
>>> Tested-by: Mathieu Malaterre
>>>
>>> Thanks
>>>
>>> O
On Thu, Jul 21, 2016 at 11:34:25AM -0700, Kees Cook wrote:
> On Wed, Jul 20, 2016 at 11:52 PM, Michael Ellerman
> wrote:
> > Kees Cook writes:
> >
> >> diff --git a/mm/usercopy.c b/mm/usercopy.c
> >> new file mode 100644
> >> index ..e4bf4e7ccdf6
> >> --- /dev/null
> >> +++ b/mm/user
This is a very minor/trivial fix for the output of PCI address on EEH logs.
The PCI address on "OF node" field currently is using ":" as a separator
for the function, but the usual separator is ".". This patch changes the
separator for dot, so the PCI address is printed as usual.
No functional cha
> On Jul 22, 2016, at 4:01 AM, Andrew Donnellan
> wrote:
>
> Make native_irq_wait() static and use NULL rather than 0 to initialise
> phb->cfg_data in cxl_pci_vphb_add() to remove sparse warnings.
>
> Signed-off-by: Andrew Donnellan
Reviewed-by: Matthew R. Ochs
_
> On Jul 21, 2016, at 3:44 PM, Uma Krishnan wrote:
>
> Adding myself as a cxlflash maintainer.
>
> Signed-off-by: Uma Krishnan
Acked-by: Matthew R. Ochs
___
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> On Jul 21, 2016, at 3:44 PM, Uma Krishnan wrote:
>
> If an EEH or some other hard error occurs while the
> adapter instance was being initialized, on the subsequent
> shutdown of the device, the system could crash with:
>
> [c00f1da03b60] c05eccfc pci_device_shutdown+0x6c/0x100
> [
On Fri, 2016-07-22 at 22:37 +1000, Nicholas Piggin wrote:
> > We also handle fault with proper stack initialized. This enable us
> to
> > callout to C in fault handling routines. We don't do this for
> kernel
> > mapping, because of the possibility of taking recursive fault if
> > kernel stack in n
Calculating the slice mask can become a signifcant overhead for
get_unmapped_area. The mask is relatively small and does not change
frequently, so we can cache it in the mm context.
This saves about 30% kernel time on a 4K user address allocation
in a microbenchmark.
Comments on the approach take
On Wed, 13 Jul 2016 15:10:49 +0530
"Aneesh Kumar K.V" wrote:
> We also handle fault with proper stack initialized. This enable us to
> callout to C in fault handling routines. We don't do this for kernel
> mapping, because of the possibility of taking recursive fault if
> kernel stack in not yet
Make native_irq_wait() static and use NULL rather than 0 to initialise
phb->cfg_data in cxl_pci_vphb_add() to remove sparse warnings.
Signed-off-by: Andrew Donnellan
---
drivers/misc/cxl/native.c | 2 +-
drivers/misc/cxl/vphb.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --g
On Thu, 21 Jul 2016 14:34:10 +
David Laight wrote:
> From: Nicholas Piggin
> > Sent: 21 July 2016 07:44
> ...
> > @@ -739,7 +739,8 @@ kvmppc_skip_Hinterrupt:
> > * Ensure that any handlers that get invoked from the exception
> > prologs
> > * above are below the first 64KB (0x1) of
This adds some documentation for the 64-bit syscall ABI, because
we don't seem to have a canonical document anywhere. I have been
mostly looking at 64S, so comments about 32-bit and embedded would
be welcome too.
I have just documented existing practice. The only small issue I
have come across is
Hi,
[auto build test WARNING on v4.7-rc7]
[also build test WARNING on next-20160721]
[cannot apply to powerpc/next]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system]
url:
https://github.com/0day-ci/linux/commits/Joe-Perches/powernv-Use-__print
tabort_syscall runs with RI=1, so a nested recoverable machine
check will load the paca into r13 and overwrite what we loaded
it with, because exceptions returning to privileged mode do not
restore r13.
This has survived testing with sc instruction inside transaction
(bare sc, not glibc syscall be
pnv_eeh_reset() has special handling for PEs whose primary bus is the root
bus or the bus immediately underneath the root port.
The cxl bi-modal card support added in b0b5e5918ad1 ("cxl: Add
cxl_check_and_switch_mode() API to switch bi-modal cards") relies on this
behaviour when hot-resetting the
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