We setup a mapping in PAGE_OFFSET and jump to KERNELBASE. This is not a
problem when PAGE_OFFSET = KERNELBASE. Replace PAGE_OFFSET with
KERNELBASE here to make it consistent.
Signed-off-by: Jason Yan
---
arch/powerpc/kernel/fsl_booke_entry_mapping.S | 4 ++--
1 file changed, 2 insertions(+), 2 d
These two variables are both defined in init_32.c and init_64.c. Move
them to init-common.c.
Signed-off-by: Jason Yan
---
arch/powerpc/mm/init-common.c | 5 +
arch/powerpc/mm/init_32.c | 5 -
arch/powerpc/mm/init_64.c | 5 -
3 files changed, 5 insertions(+), 10 deletions(-)
Unify some definitions and micros. No functional change.
Jason Yan (3):
powerpc/fsl_booke: replace PAGE_OFFSET with KERNELBASE
powerpc: unify definition of M_IF_NEEDED
powerpc: move memstart_addr and kernstart_addr to init-common.c
arch/powerpc/include/asm/nohash/mmu-book3e.h | 10 +++
M_IF_NEEDED is defined too many times. Move it to a common place.
Signed-off-by: Jason Yan
---
arch/powerpc/include/asm/nohash/mmu-book3e.h | 10 ++
arch/powerpc/kernel/exceptions-64e.S | 10 --
arch/powerpc/kernel/fsl_booke_entry_mapping.S | 10 --
arch/powerpc
Hi Nayna,
Nayna Jain writes:
> As part of PowerNV secure boot support, OS verification keys are stored
> and controlled by OPAL as secure variables. These need to be exposed to
> the userspace so that sysadmins can perform key management tasks.
>
> This patch adds the support to expose secure var
On 07/05/19 at 11:43am, Alex Shi wrote:
>
>
> 在 2019/6/28 下午8:30, Mauro Carvalho Chehab 写道:
> > The Kdump documentation describes procedures with admins use
> > in order to solve issues on their systems.
> >
> > Signed-off-by: Mauro Carvalho Chehab
> > ---
> > Documentation/admin-guide/bug-hun
On 06/28/19 at 09:30am, Mauro Carvalho Chehab wrote:
> The Kdump documentation describes procedures with admins use
> in order to solve issues on their systems.
>
> Signed-off-by: Mauro Carvalho Chehab
> ---
> Documentation/admin-guide/bug-hunting.rst| 4 ++--
> Documentation/admin-g
Architectures like parisc enable CONFIG_KROBES without having a definition
for kprobe_fault_handler() which results in a build failure. Arch needs to
provide kprobe_fault_handler() as it is platform specific and cannot have
a generic working alternative. But in the event when platform lacks such a
Reza Arbab's on July 5, 2019 12:50 pm:
> On Thu, Jul 04, 2019 at 12:36:18PM +1000, Nicholas Piggin wrote:
>>Reza Arbab's on July 4, 2019 3:20 am:
>>> Since the notifier chain is actually part of the decision between (1)
>>> and (2), it's a hard limitation then that callbacks be in real address
>>>
On Thu, Jul 04, 2019 at 12:36:18PM +1000, Nicholas Piggin wrote:
Reza Arbab's on July 4, 2019 3:20 am:
Since the notifier chain is actually part of the decision between (1)
and (2), it's a hard limitation then that callbacks be in real address
space. Is there any way to structure things so that'
Use the typical style of array, not the equivalent &array[0].
Signed-off-by: Joe Perches
---
drivers/tty/hvc/hvcs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index cb4db1b3ca3c..b6c1c1be06f9 100644
--- a/drivers/tty/hv
These are all likely copy/paste defects where the field size of the
'copied to' array is incorrect.
Each patch in this series is independent.
Joe Perches (8):
Input: synaptics: Fix misuse of strlcpy
leds: as3645a: Fix misuse of strlcpy
media: m2m-deinterlace: Fix misuse of strscpy
media:
Hello Philipp,
Philipp Rudo writes:
> Hi Thiago,
>
>
> On Thu, 04 Jul 2019 03:42:57 -0300
> Thiago Jung Bauermann wrote:
>
>> Jessica Yu writes:
>>
>> > +++ Thiago Jung Bauermann [27/06/19 23:19 -0300]:
>> >>IMA will use the module_signature format for append signatures, so export
>> >>th
On Tue, 2019-07-02 at 08:28:01 UTC, Michael Ellerman wrote:
> Remove SOFTEN_VALUE_0x980, it's been unused since commit
> dabe859ec636 ("powerpc: Give hypervisor decrementer interrupts their
> own handler") (Sep 2012).
>
> Signed-off-by: Michael Ellerman
Applied to powerpc next.
https://git.kern
On Sat, 2019-06-29 at 08:03:59 UTC, Christoph Hellwig wrote:
> Use the dma_get_mask helper from dma-mapping.h instead.
>
> Signed-off-by: Christoph Hellwig
> Reviewed-by: Alexey Kardashevskiy
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/24911acd64cee411c9e626d3d0ca0733805b
On Fri, 2019-06-28 at 06:33:18 UTC, Nicholas Piggin wrote:
> The bad stack test in interrupt handlers has a few problems. For
> performance it is taken in the common case, which is a fetch bubble
> and a waste of i-cache.
>
> For code development and maintainence, it requires yet another stack
> f
On Fri, 2019-06-28 at 05:33:20 UTC, Nicholas Piggin wrote:
> syscall / hcall entry unnecessarily differs between KVM and non-KVM
> builds. Move the SMT priority instruction to the same location
> (after INTERRUPT_TO_KERNEL).
>
> Signed-off-by: Nicholas Piggin
Series applied to powerpc next, than
On Sun, 2019-06-23 at 10:41:51 UTC, Nicholas Piggin wrote:
> This makes it clear to the caller that it can only be used on POWER9
> and later CPUs.
>
> Signed-off-by: Nicholas Piggin
Series applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/fe7946ce0808eb0e43711f5db7d2d1599b362d0
On Sat, 2019-06-22 at 13:15:11 UTC, Nicholas Piggin wrote:
> Replace all instances of this with gas macros that test the hsrr
> parameter and use the appropriate register names / labels.
>
> No generated code change.
>
> Signed-off-by: Nicholas Piggin
Series applied to powerpc next, thanks.
ht
On Tue, 2019-06-11 at 14:30:13 UTC, Nicholas Piggin wrote:
> By convention, all lines should be separated by a semicolons. Last line
> should have neither semicolon or line wrap.
>
> No generated code change.
>
> Signed-off-by: Nicholas Piggin
Applied to powerpc next, thanks.
https://git.kerne
On Tue, 2019-06-04 at 03:00:36 UTC, Michael Neuling wrote:
> From: Mathieu Malaterre
>
> In commit c1fe190c0672 ("powerpc: Add force enable of DAWR on P9
> option") the following piece of code was added:
>
>smp_call_function((smp_call_func_t)set_dawr, &null_brk, 0);
>
> Since GCC 8 this tri
On Thu, 4 Jul 2019 19:26:36 +0530
Sachin Sant wrote:
> > On 04-Jul-2019, at 5:29 PM, Mimi Zohar wrote:
> >
> > On Wed, 2019-07-03 at 23:32 -0400, Nayna Jain wrote:
> >> The nr_allocated_banks and allocated banks are initialized as part of
> >> tpm_chip_register. Currently, this is done as par
On 07/03/2019 04:36 AM, Andrew Morton wrote:
> On Fri, 28 Jun 2019 10:50:31 +0530 Anshuman Khandual
> wrote:
>
>> Finishing up what the commit c2febafc67734a ("mm: convert generic code to
>> 5-level paging") started out while levelling up P4D huge mapping support
>> at par with PUD and PMD. A
In register_ftrace_function_probe(), we are not checking the return
value of alloc_and_copy_ftrace_hash(). The subsequent call to
ftrace_match_records() may end up dereferencing the same. Add a check to
ensure this doesn't happen.
Signed-off-by: Naveen N. Rao
---
kernel/trace/ftrace.c | 5 +
LTP testsuite on powerpc results in the below crash:
Unable to handle kernel paging request for data at address 0x
Faulting instruction address: 0xc029d800
Oops: Kernel access of bad area, sig: 11 [#1]
LE SMP NR_CPUS=2048 NUMA PowerNV
...
CPU: 68 PID: 96584 Comm: cat Kd
Two patches addressing bugs in ftrace function probe handling. The first
patch addresses a NULL pointer dereference reported by LTP tests, while
the second one is a trivial patch to address a missing check for return
value, found by code inspection.
- Naveen
Naveen N. Rao (2):
ftrace: Fix N
"Aneesh Kumar K.V" writes:
> "Oliver O'Halloran" writes:
>
>> On Sat, Jun 29, 2019 at 5:39 PM Aneesh Kumar K.V
>> wrote:
>>>
>>> Allocation from altmap area can fail based on vmemmap page size used. Add
>>> kernel
>>> info message to indicate the failure. That allows the user to identify
>>> w
Nathan Lynch writes:
> "Aneesh Kumar K.V" writes:
>>> Just checking: do people still need numa=off? Seems like it's a
>>> maintenance burden :-)
>>>
>>
>> That is used in kdump kernel.
>
> I see, thanks.
That doesn't mean it's a good idea :)
Does it actually reduce memory usage much? Last time
"Aneesh Kumar K.V" writes:
> Andrew Morton writes:
>
>> On Mon, 1 Jul 2019 19:10:38 +0530 "Aneesh Kumar K.V"
>> wrote:
>>
>>> Architectures like powerpc use different address range to map ioremap
>>> and vmalloc range. The memunmap() check used by the nvdimm layer was
>>> wrongly using is_vmal
> On 04-Jul-2019, at 5:29 PM, Mimi Zohar wrote:
>
> On Wed, 2019-07-03 at 23:32 -0400, Nayna Jain wrote:
>> The nr_allocated_banks and allocated banks are initialized as part of
>> tpm_chip_register. Currently, this is done as part of auto startup
>> function. However, some drivers, like the ib
On Wed, 2019-07-03 at 23:32 -0400, Nayna Jain wrote:
> The nr_allocated_banks and allocated banks are initialized as part of
> tpm_chip_register. Currently, this is done as part of auto startup
> function. However, some drivers, like the ibm vtpm driver, do not run
> auto startup during initializat
On Thursday 04 July 2019 04:43 PM, Michael Ellerman wrote:
> "Naveen N. Rao" writes:
>> Nathan Lynch wrote:
>>> Aravinda Prasad writes:
Calculating the maximum memory based on the number of lmbs
and lmb size does not account for the RMA region. Hence
use memory_hotplug_max(), wh
"Naveen N. Rao" writes:
> Nathan Lynch wrote:
>> Aravinda Prasad writes:
>>> Calculating the maximum memory based on the number of lmbs
>>> and lmb size does not account for the RMA region. Hence
>>> use memory_hotplug_max(), which already accounts for the
>>> RMA region, to fetch the maximum mem
Hi Thiago,
On Thu, 04 Jul 2019 03:42:57 -0300
Thiago Jung Bauermann wrote:
> Jessica Yu writes:
>
> > +++ Thiago Jung Bauermann [27/06/19 23:19 -0300]:
> >>IMA will use the module_signature format for append signatures, so export
> >>the relevant definitions and factor out the code which ve
The disable callback can be used to compute timeout for other states
whenever a state is enabled or disabled. We store the computed timeout
in "timeout" defined in cpuidle state strucure. So, we compute timeout
only when some state is enabled or disabled and not every time in the
fast idle path.
We
To force wakeup a cpu, we need to compute the timeout in the fast idle
path as a state may be enabled or disabled but there did not exist a
feedback to driver when a state is enabled or disabled.
This patch adds a callback whenever a state_usage records a store for
disable attribute.
Signed-off-by
Currently, the cpuidle governors determine what idle state a idling CPU
should enter into based on heuristics that depend on the idle history on
that CPU. Given that no predictive heuristic is perfect, there are cases
where the governor predicts a shallow idle state, hoping that the CPU will
be bus
Currently, the cpuidle governors determine what idle state a idling CPU
should enter into based on heuristics that depend on the idle history on
that CPU. Given that no predictive heuristic is perfect, there are cases
where the governor predicts a shallow idle state, hoping that the CPU will
be bus
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