Florian,
On Wed, Feb 28, 2018 at 03:45:43PM -0800, Florian Fainelli wrote:
> On 02/28/2018 07:01 AM, Marcus Folkesson wrote:
> > - Add SPDX identifier
> > - Remove boiler plate license text
> > - If MODULE_LICENSE and boiler plate does not match, go for boiler plate
> > license
> >
> > Signed-o
Le 28/02/2018 à 07:53, Nicholas Piggin a écrit :
On Tue, 27 Feb 2018 18:11:07 +0530
"Aneesh Kumar K.V" wrote:
Nicholas Piggin writes:
On Tue, 27 Feb 2018 14:31:07 +0530
"Aneesh Kumar K.V" wrote:
Christophe Leroy writes:
The number of high slices a process might use now depends
On Thu, Mar 1, 2018 at 3:55 AM, Michael Ellerman wrote:
> Mathieu Malaterre writes:
>
>> When neither CONFIG_ALTIVEC, nor CONFIG_VSX or CONFIG_PPC64 is defined, the
>> array feature_properties is defined as an empty array, which in turn
>> triggers the following warning (treated as error on W=1):
Vaibhav Jain writes:
> Presently sysrq key for xmon('x') is registered during kernel init
> irrespective of the value of kernel param 'xmon'. Thus xmon is enabled
> even if 'xmon=off' is passed on the kernel command line. However this
> doesn't enable the kernel debugger hooks needed for instruct
Mathieu Malaterre writes:
> When neither CONFIG_ALTIVEC, nor CONFIG_VSX or CONFIG_PPC64 is defined, the
> array feature_properties is defined as an empty array, which in turn
> triggers the following warning (treated as error on W=1):
>
> CC arch/powerpc/kernel/prom.o
> arch/powerpc/kernel
> > diff --git a/arch/powerpc/platforms/powernv/npu-dma.c
> > b/arch/powerpc/platforms/powernv/npu-dma.c
> > index 0a253b64ac5f..2fed4b116e19 100644
> > --- a/arch/powerpc/platforms/powernv/npu-dma.c
> > +++ b/arch/powerpc/platforms/powernv/npu-dma.c
> > @@ -726,7 +749,7 @@ struct npu_context *pnv
Stewart Smith writes:
> Akshay Adiga writes:
>> commit 1e1601b38e6e ("powerpc/powernv/idle: Restore SPRs for deep idle
>> states via stop API.") uses stop-api provided by the firmware to restore
>> PSSCR. PSSCR restore is required for handling special wakeup. When special
>> wakeup is completed,
Akshay Adiga writes:
> On Mon, Feb 26, 2018 at 03:47:12PM +1100, Stewart Smith wrote:
>> Akshay Adiga writes:
>> > commit 1e1601b38e6e ("powerpc/powernv/idle: Restore SPRs for deep idle
>> > states via stop API.") uses stop-api provided by the firmware to restore
>> > PSSCR. PSSCR restore is req
Rob Herring writes:
> 'linux,stdout-path' has been deprecated for some time in favor of
> 'stdout-path'. Now dtc will warn on occurrences of 'linux,stdout-path'.
> Search and replace all the of occurrences with 'stdout-path'.
This patch looks OK.
But please remember that not all device trees ar
From: Segher Boessenkool
Newer gcc will support "-mno-readonly-in-sdata"[1], which makes sure that
the optimization on PPC32 for variables getting moved into the .sdata
section will not apply to const variables (which must be in .rodata).
This was originally noticed in mm/rodata_test.c when roda
Michael Ellerman writes:
> This commit adds security feature flags to reflect the settings we
> receive from firmware regarding Spectre/Meltdown mitigations.
>
> The feature names reflect the names we are given by firmware on bare
> metal machines. See the hostboot source for details.
>
> Arguabl
On 02/28/2018 07:01 AM, Marcus Folkesson wrote:
> - Add SPDX identifier
> - Remove boiler plate license text
> - If MODULE_LICENSE and boiler plate does not match, go for boiler plate
> license
>
> Signed-off-by: Marcus Folkesson
> Acked-by: Adam Thomson
> Acked-by: Baruch Siach
> Acked-by: C
Hi Aneesh,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on powerpc/next]
[also build test ERROR on v4.16-rc3 next-20180228]
[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
On Mon, Feb 19, 2018 at 12:59:51PM +, David Woodhouse wrote:
> Commit f719582435 ("PCI: Add pci_mmap_resource_range() and use it for
> ARM64") added this generic function with the intent of using it
> everywhere and ultimately killing the old arch-specific implementations.
>
> Let's get on wit
'linux,stdout-path' has been deprecated for some time in favor of
'stdout-path'. Now dtc will warn on occurrences of 'linux,stdout-path'.
Search and replace all the of occurrences with 'stdout-path'.
Signed-off-by: Rob Herring
Cc: Mark Rutland
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc:
On Thu, 2018-03-01 at 01:03 +0530, Akshay Adiga wrote:
> commit 1e1601b38e6e ("powerpc/powernv/idle: Restore SPRs for deep idle
> states via stop API.") uses stop-api provided by the firmware to restore
> PSSCR. PSSCR restore is required for handling special wakeup. When special
> wakeup is complet
commit 1e1601b38e6e ("powerpc/powernv/idle: Restore SPRs for deep idle
states via stop API.") uses stop-api provided by the firmware to restore
PSSCR. PSSCR restore is required for handling special wakeup. When special
wakeup is completed, the core enters stop state based on restored PSSCR.
Curren
On Mon, Feb 26, 2018 at 03:47:12PM +1100, Stewart Smith wrote:
> Akshay Adiga writes:
> > commit 1e1601b38e6e ("powerpc/powernv/idle: Restore SPRs for deep idle
> > states via stop API.") uses stop-api provided by the firmware to restore
> > PSSCR. PSSCR restore is required for handling special wa
* Nicholas Piggin [2017-11-18 00:08:07]:
> When stop is executed with EC=ESL=0, it appears to execute like a
> normal instruction (resuming from NIP when woken by interrupt). So all
> the save/restore handling can be avoided completely. In particular NV
> GPRs do not have to be saved, and MSR doe
* Nicholas Piggin [2017-11-18 00:08:05]:
> Implement a new function to invoke stop, power9_offline_stop, which is
> like power9_idle_stop but used by the cpu hotplug code.
>
> Move KVM secondary state manipulation code to the offline case.
>
> Signed-off-by: Nicholas Piggin
Reviewed-by: Vaidy
Direction is already checked in all calling functions in
include/linux/dma-mapping.h and also in called function __dma_sync()
So really no need to check it once more here.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/dma.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/pow
* Nicholas Piggin [2017-11-18 00:08:06]:
> When waking from a CPU idle instruction (e.g., nap or stop), the sync
> for ordering the KVM secondary thread state can be avoided if there
> wakeup is coming from a kernel context rather than KVM context.
>
> This improves performance for ping-pong ben
On Tue, Feb 27, 2018 at 10:42 PM, Segher Boessenkool
wrote:
> On Tue, Feb 27, 2018 at 05:52:06PM +0200, Andy Shevchenko wrote:
>> On Tue, Feb 27, 2018 at 9:44 AM, Mathieu Malaterre wrote:
>> > On Tue, Feb 27, 2018 at 8:33 AM, Christophe LEROY
>> > wrote:
>>
>> > Much simpler is just add
>> >
Hi!
On Thu, Mar 01, 2018 at 01:53:11AM +1100, Michael Ellerman wrote:
> +// A speculation barrier should be used for bounds checks (Spectre variant
> 1ull
s/1ull/1)/ ?
Segher
- Add SPDX identifier
- Remove boiler plate license text
- If MODULE_LICENSE and boiler plate does not match, go for boiler plate
license
Signed-off-by: Marcus Folkesson
Acked-by: Adam Thomson
Acked-by: Baruch Siach
Acked-by: Charles Keepax
Acked-by: Keiji Hayashibara
Acked-by: Johannes Thu
Now that we have the security feature flags we can make the
information displayed in the "meltdown" file more informative.
Signed-off-by: Michael Ellerman
---
arch/powerpc/include/asm/security_features.h | 1 +
arch/powerpc/kernel/security.c | 30 ++--
2 fi
This landed in setup_64.c for no good reason other than we had nowhere
else to put it. Now that we have a security-related file, that is a
better place for it so move it.
Signed-off-by: Michael Ellerman
---
arch/powerpc/kernel/security.c | 12
arch/powerpc/kernel/setup_64.c | 8 ---
Now that we have feature flags for security related things, set or
clear them based on what we see in the device tree provided by
firmware.
Signed-off-by: Michael Ellerman
---
arch/powerpc/platforms/powernv/setup.c | 56 ++
1 file changed, 56 insertions(+)
diff -
Now that we have feature flags for security related things, set or
clear them based on what we receive from the hypercall.
Signed-off-by: Michael Ellerman
---
arch/powerpc/platforms/pseries/setup.c | 43 ++
1 file changed, 43 insertions(+)
diff --git a/arch/power
Add some additional values which have been defined for the
H_GET_CPU_CHARACTERISTICS hypercall.
Signed-off-by: Michael Ellerman
---
arch/powerpc/include/asm/hvcall.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/powerpc/include/asm/hvcall.h
b/arch/powerpc/include/asm/hvcall.h
inde
This commit adds security feature flags to reflect the settings we
receive from firmware regarding Spectre/Meltdown mitigations.
The feature names reflect the names we are given by firmware on bare
metal machines. See the hostboot source for details.
Arguably these could be firmware features, but
Hi Geert,
The following patch should be in the commit 'kvm-ppc-next-4.16-2' [1]:
Fixes: accb757d798c ("KVM: Move vcpu_load to arch-specific
kvm_arch_vcpu_ioctl_run")
Reported-by: Christian Zigotzky
Signed-off-by: Paul Mackerras
---
arch/powerpc/kvm/powerpc.c | 2 ++
1 file changed, 2 insertio
On Wed, Feb 28, 2018 at 12:27 PM, Geert Uytterhoeven
wrote:
> JFYI, when comparing v4.16-rc3[1] to v4.16-rc2[3], the summaries are:
> - build errors: +1/-16
+ /home/kisskb/slave/src/arch/powerpc/kvm/powerpc.c: error: label
'out' defined but not used [-Werror=unused-label]: => 1611:1
ppc64_d
On Wed, Feb 28, 2018 at 9:50 PM, Michael Ellerman wrote:
> Alistair Popple writes:
>
>>> @aneesh can you please look at this? @mpe can we pick this up if there
>>> are no objections?
>>
>> @mpe any objections to picking this up for this release? Or do you want to
>> wait
>> for the next one? (th
On Wed, Feb 28, 2018 at 09:28:30AM +0530, Aneesh Kumar K.V wrote:
> mmap(-1,..) is expected to search from max supported VA top down. It should
> find
> an address above ADDR_SWITCH_HINT. Explicitly check for this.
Hm. I don't think this correct. -1 means the application supports any
address, not
Alistair Popple writes:
>> @aneesh can you please look at this? @mpe can we pick this up if there
>> are no objections?
>
> @mpe any objections to picking this up for this release? Or do you want to
> wait
> for the next one? (there are likely more bugfixes coming for ATS support).
I can grab i
On Wed, Feb 28, 2018 at 8:49 PM, Michael Ellerman wrote:
> Balbir Singh writes:
>
>> On MCE the current code will restart the machine with
>> ppc_md.restart(). This case was extremely unlikely since
>> prior to that a skiboot call is made and that resulted in
>> a checkstop for analysis.
>>
>> Wi
Viresh Kumar writes:
> On 26-02-18, 22:53, Michael Ellerman wrote:
>> Viresh Kumar writes:
>> > Subject: Re: [PATCH 15/27] cpufreq: powerenv: Don't validate the frequency
>> > table twice
>>^
>> powernv
>>
>> > T
"Aneesh Kumar K.V" writes:
> futex_detect_cmpxchg() does a cmpxchg_futex_value_locked on a NULL user addr
> to
> runtime detect whether architecture implements atomic cmpxchg for futex. POWER
> do implement the feature and hence we can enable the config instead of
> depending
> on runtime detec
Alistair Popple writes:
> When sending TLB invalidates to the NPU we need to send extra flushes due
> to a hardware issue. The original implementation would lock the all the
> ATSD MMIO registers sequentially before unlocking and relocking each of
> them sequentially to do the extra flush.
>
> Th
Balbir Singh writes:
> On MCE the current code will restart the machine with
> ppc_md.restart(). This case was extremely unlikely since
> prior to that a skiboot call is made and that resulted in
> a checkstop for analysis.
>
> With newer skiboots, on P9 we don't checkstop the box by
> default, i
The tm-resched-dscr test links against pmu/lib.o, but we don't have a
rule to clean pmu/lib.o. This can lead to a build break if you build
for big endian and then little, or vice versa.
Fix it by making tm-resched-dscr depend on pmu/lib.c, causing the code
to be built directly in, meaning no .o is
"Aneesh Kumar K.V" writes:
> mmap(-1,..) is expected to search from max supported VA top down. It should
> find
> an address above ADDR_SWITCH_HINT. Explicitly check for this.
>
> Also derefer the address even if we failed the addr check.
>
> Signed-off-by: Aneesh Kumar K.V
One issue I noticed
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