When a CPU has to enter an idle state where tick stops, it makes a call
to tick_broadcast_enter(). The call will fail if this CPU is the
broadcast CPU. Today, under such a circumstance, the arch cpuidle code
handles this CPU. This is not convincing because not only are we not
aware what the arch c
Add 1588 timer node in files:
arch/powerpc/boot/dts/bsc9131rdb.dtsi
arch/powerpc/boot/dts/bsc9132qds.dtsi
arch/powerpc/boot/dts/p1010rdb.dtsi
arch/powerpc/boot/dts/p1020rdb-pd.dts
arch/powerpc/boot/dts/p1021rdb-pc.dtsi
arch/powerpc/boot/dts/p1022ds.dtsi
arch/powerpc/boot/dts/p1025twr.dtsi
Fix 1588
On Tue, 2015-05-05 at 11:52 -0400, Oleksandr G Zhadan wrote:
> New QorIQ p1020 based board support from Arcturus Networks Inc.
> http://www.arcturusnetworks.com/products/ucp1020/
>
> Signed-off-by: Michael Durrant
> Signed-off-by: Oleksandr G Zhadan
> ---
> Documentation/devicetree/bindings/pci
All users of the old opal events notifier have been converted over to
the irq domain so remove the event notifier functions.
Signed-off-by: Alistair Popple
---
arch/powerpc/platforms/powernv/opal-irqchip.c | 16 ++---
arch/powerpc/platforms/powernv/opal.c | 84 +--
This patch converts the elog code to use the opal irq domain instead
of notifier events.
Signed-off-by: Alistair Popple
---
arch/powerpc/platforms/powernv/opal-elog.c | 32 +++---
1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/arch/powerpc/platforms/power
Convert the opal dump driver to the new opal irq domain.
Signed-off-by: Alistair Popple
---
arch/powerpc/platforms/powernv/opal-dump.c | 56 +-
1 file changed, 17 insertions(+), 39 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/opal-dump.c
b/arch/powerpc/p
This patch converts the opal message event to use the new opal irq
domain.
Signed-off-by: Alistair Popple
---
arch/powerpc/platforms/powernv/opal.c | 29 +++--
1 file changed, 15 insertions(+), 14 deletions(-)
diff --git a/arch/powerpc/platforms/powernv/opal.c
b/arch/po
Whenever an interrupt is received for opal the linux kernel gets a
bitfield indicating certain events that have occurred and need handling
by the various device drivers. Currently this is handled using a
notifier interface where we call every device driver that has
registered to receive opal events
Convert the opal hvc driver to use the new irqchip to register for
opal events. As older firmware versions may not have device tree
bindings for the interrupt parent we just use a hardcoded hwirq based
on the event number.
Signed-off-by: Alistair Popple
---
drivers/tty/hvc/hvc_opal.c | 33 ++
Convert the opal ipmi driver to use the new irq interface for events.
Signed-off-by: Alistair Popple
Cc: Corey Minyard
Cc: openipmi-develo...@lists.sourceforge.net
---
Corey,
If this looks ok can you please ack it? Michael Ellerman will then take
the whole series via the powerpc tree. Thanks.
The eeh code currently uses the old notifier method to get eeh events
from OPAL. It also contains some logic to filter opal events which has
been moved into the virtual irqchip. This patch converts the eeh code
to the new event interface which simplifies event handling.
Signed-off-by: Alistair Pop
On Wed, May 06, 2015 at 12:51:06PM -0400, Dan Streetman wrote:
> Add crypto compression alg for 842 hardware compression and decompression.
>
> This crypto compression alg is named "nx842" to indicate it uses hardware
> to perform the compression and decompression, while the software 842
> compres
On Wed, May 06, 2015 at 12:51:00PM -0400, Dan Streetman wrote:
> Change the crypto 842 compression alg to use the software 842 compression
> and decompression library. Change the name of this crypto alg to "sw842".
> Remove the fallback to LZO compression.
That's not how the name works. All impl
Thanks.
Pls see my comments below.
-Original Message-
From: Wood Scott-B07421
Sent: Thursday, May 07, 2015 4:44 AM
To: Lu Yangbo-B47093
Cc: linuxppc-dev@lists.ozlabs.org; linux-ker...@vger.kernel.org
Subject: Re: [PATCH] powerpc/dts: Add 1588 timer node for eTSEC
On Wed, 2015-05-06 at 17
-Original Message-
From: Wood Scott-B07421
Sent: Thursday, May 07, 2015 10:35 AM
To: Lu Yangbo-B47093
Cc: linuxppc-dev@lists.ozlabs.org; linux-ker...@vger.kernel.org
Subject: Re: [PATCH] powerpc/dts: Add 1588 timer node for eTSEC
On Wed, 2015-05-06 at 21:26 -0500, Lu Yangbo-B47093 wrote
On Wed, 2015-05-06 at 21:26 -0500, Lu Yangbo-B47093 wrote:
> Thanks.
> Pls see my comments below.
>
> -Original Message-
> From: Wood Scott-B07421
> Sent: Thursday, May 07, 2015 4:44 AM
> To: Lu Yangbo-B47093
> Cc: linuxppc-dev@lists.ozlabs.org; linux-ker...@vger.kernel.org
> Subject: Re:
On Tue, 2015-05-05 at 21:12 +1000, Michael Ellerman wrote:
> As soon as we know the name of the cpu we're on, add it to the dump
> stack arch description, which is printed in case of an oops.
>
> Signed-off-by: Michael Ellerman
> ---
> arch/powerpc/kernel/cputable.c | 3 +++
> 1 file changed, 3
On Wed, 2015-05-06 at 15:25 -0700, Stephen Boyd wrote:
> On 05/06, Scott Wood wrote:
> > On Wed, 2015-05-06 at 00:02 -0700, Stephen Boyd wrote:
> > > On 04/16, Igal.Liberman wrote:
> > > > +static int get_fm_clk_idx(int fm_id, int *fm_clk_idx)
> > > > +{
> > > > + struct ccsr_guts __iomem *gu
On 05/06, Scott Wood wrote:
> On Wed, 2015-05-06 at 00:02 -0700, Stephen Boyd wrote:
> > On 04/16, Igal.Liberman wrote:
> > > +static int get_fm_clk_idx(int fm_id, int *fm_clk_idx)
> > > +{
> > > + struct ccsr_guts __iomem *guts_regs = NULL;
> >
> > Unnecessary initialization to NULL. Also, markin
On Wed, 2015-05-06 at 17:40 +0800, Yangbo Lu wrote:
> Add 1588 timer node in files:
> arch/powerpc/boot/dts/bsc9131rdb.dtsi
> arch/powerpc/boot/dts/bsc9132qds.dtsi
> arch/powerpc/boot/dts/p1010rdb.dtsi
> arch/powerpc/boot/dts/p1020rdb-pd.dts
> arch/powerpc/boot/dts/p1021rdb-pc.dtsi
> arch/powerpc/b
On Wed, May 6, 2015 at 6:11 PM, Michal Simek
wrote:
> On 05/06/2015 10:40 AM, Arnd Bergmann wrote:
> > On Wednesday 06 May 2015 09:45:15 Michal Simek wrote:
> >> On 05/06/2015 09:31 AM, Arnd Bergmann wrote:
> >>> On Wednesday 06 May 2015 10:41:07 Suman Tripathi wrote:
> >> @@ -533,6 +567,16 @
Add crypto compression alg for 842 hardware compression and decompression.
This crypto compression alg is named "nx842" to indicate it uses hardware
to perform the compression and decompression, while the software 842
compression alg is named "sw842". However, since before this split there
was on
Simplify the pSeries NX-842 driver: do not expect incoming buffers to be
exactly page-sized; do not break up input buffers to compress smaller
blocks; do not use any internal headers in the compressed data blocks;
remove the software decompression implementation; implement the pSeries
nx842_constra
Add NX-842 frontend that allows using either the pSeries platform or
PowerNV platform driver (to be added by later patch) for the NX-842
hardware. Update the MAINTAINERS file to include the new filenames.
Update Kconfig files to clarify titles and descriptions, and correct
dependencies.
Signed-of
Add driver for NX-842 hardware on the PowerNV platform.
This allows the use of the 842 compression hardware coprocessor on
the PowerNV platform.
Signed-off-by: Dan Streetman
---
drivers/crypto/nx/Kconfig | 10 +
drivers/crypto/nx/Makefile | 2 +
drivers/crypto/nx/nx-842-powe
Add "constraints" for the NX-842 driver. The constraints are used to
indicate what the current NX-842 platform driver is capable of. The
constraints tell the NX-842 user what alignment, min and max length, and
length multiple each provided buffers should conform to. These are
required because th
Move the entire NX-842 driver for the pSeries platform from the file
nx-842.c to nx-842-pseries.c. This is required by later patches that
add NX-842 support for the PowerNV platform.
This patch does not alter the content of the pSeries NX-842 driver at
all, it only changes the filename.
Signed-o
Change the crypto 842 compression alg to use the software 842 compression
and decompression library. Change the name of this crypto alg to "sw842".
Remove the fallback to LZO compression.
Previously, this crypto compression alg attemped 842 compression using
PowerPC hardware, and fell back to LZO
Add 842-format software compression and decompression functions.
Update the MAINTAINERS 842 section to include the new files.
The 842 compression function can compress any input data into the 842
compression format. The 842 decompression function can decompress any
standard-format 842 compressed
Add the asm ICSWX and ICSWEPX opcodes. Add definitions for the
Coprocessor Request structures needed to use the icswx calls to
coprocessors. Add icswx() function to perform the ICSWX asm
using the provided Coprocessor Command Word value and
Coprocessor Request Block structure.
This is required f
Export the of_get_ibm_chip_id() function. This will be used by the
PowerNV NX-842 driver.
Signed-off-by: Dan Streetman
---
arch/powerpc/kernel/prom.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 308c5e1..ea2cea7 100644
--- a/a
IBM PowerPC processors starting at version P7+ contain a NX coprocessor
that provides various hw-accelerated functions, one of which is memory
compression to the IBM "842" compression format. This NX-842 coprocessor
is already supported on the pSeries platform, by the nx-842.c driver and
the crypt
On 2015/05/06 02:46PM, Christian Borntraeger wrote:
> Am 06.05.2015 um 13:56 schrieb Naveen N. Rao:
> > On powerpc, kvm tracks both the guest steal time as well as the time
> > when guest was idle and this gets sent in to the guest through DTL. The
> > guest accounts these entries as either steal t
Currently x86, powerpc and soon arm64 use the same two architecture
specific bits for guest debug support for software and hardware
breakpoints. This makes the shared values explicit while leaving the
gate open for another architecture to use some other value if they
really really want to.
Signed-
The sdhci framework disables SDR104/SDR50/DDR50 based on only quirk.
This patch adds the support to disable SDR104/SDR50/DDR50 based on
reading the capability register 0.
Signed-off-by: Suman Tripathi
---
drivers/mmc/host/sdhci.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --gi
This patch adds the arasan sdhci nodes to reuse the of-arasan
driver for APM X-Gene SoC.
Signed-off-by: Suman Tripathi
---
arch/arm64/boot/dts/apm/apm-mustang.dts | 4 +++
arch/arm64/boot/dts/apm/apm-storm.dtsi | 43 +
2 files changed, 47 insertions(+)
diff --g
This patch adds the SDHCI support for APM X-Gene SoC using ARASAN SDHCI
controller.
v1 change:
* Use the CONFIG_ARM64_DMA_HAS_IOMMU for dma-mapping.
v2 change:
* Drop the IOMMU support and switching to PIO mode for arasan.
controller integrated inside APM X-Gene SoC.
v3 change:
* Change t
On 05/06/2015 10:40 AM, Arnd Bergmann wrote:
> On Wednesday 06 May 2015 09:45:15 Michal Simek wrote:
>> On 05/06/2015 09:31 AM, Arnd Bergmann wrote:
>>> On Wednesday 06 May 2015 10:41:07 Suman Tripathi wrote:
>> @@ -533,6 +567,16 @@
>> interrupts = <0x0 0x4f 0x4>;
>>
Am 06.05.2015 um 13:56 schrieb Naveen N. Rao:
> On powerpc, kvm tracks both the guest steal time as well as the time
> when guest was idle and this gets sent in to the guest through DTL. The
> guest accounts these entries as either steal time or idle time based on
> the last running task. Since the
Hi Arnd,
On Wed, May 6, 2015 at 5:27 PM, Suman Tripathi wrote:
>
>
> On Wed, May 6, 2015 at 2:10 PM, Arnd Bergmann wrote:
>
>> On Wednesday 06 May 2015 09:45:15 Michal Simek wrote:
>> > On 05/06/2015 09:31 AM, Arnd Bergmann wrote:
>> > > On Wednesday 06 May 2015 10:41:07 Suman Tripathi wrote:
>
On Wed, May 6, 2015 at 2:10 PM, Arnd Bergmann wrote:
> On Wednesday 06 May 2015 09:45:15 Michal Simek wrote:
> > On 05/06/2015 09:31 AM, Arnd Bergmann wrote:
> > > On Wednesday 06 May 2015 10:41:07 Suman Tripathi wrote:
> > @@ -533,6 +567,16 @@
> > interrupts = <
git bisect good
38aef1549b18539eaecd804383a6ccb6588a9ce1 is the first bad commit
commit 38aef1549b18539eaecd804383a6ccb6588a9ce1
Author: Alex Deucher
Date: Tue Apr 7 10:20:49 2015 -0400
drm/radeon: only enable audio streams if the monitor supports it
Selectively enable which packe
Steal time accounts the time duration during which a guest vcpu was ready to
run, but was not scheduled to run by the hypervisor. This is particularly
relevant in cloud environment where customers would want to use this as an
indicator that their guests are being throttled. However, as it stands to
Introduce a field in /proc//stat to expose guest steal time.
Signed-off-by: Naveen N. Rao
---
fs/proc/array.c | 6 ++
include/linux/sched.h | 7 +++
kernel/fork.c | 2 +-
3 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/fs/proc/array.c b/fs/proc/array.c
index
On powerpc, kvm tracks both the guest steal time as well as the time
when guest was idle and this gets sent in to the guest through DTL. The
guest accounts these entries as either steal time or idle time based on
the last running task. Since the true guest idle status is not visible
to the host, we
Report guest steal time in host task statistics. On x86, this is just
the scheduler run_delay.
Signed-off-by: Naveen N. Rao
---
arch/x86/kvm/x86.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c73efcd..7107b7d 100644
--- a/arch/x86/kvm/x86.c
++
Arrgh! Sorry about the headers. Please ignore this set. Will repost in a
separate thread.
- Naveen
On 2015/05/06 04:28PM, Naveen N Rao wrote:
> Steal time accounts the time duration during which a guest vcpu was ready to
> run, but was not scheduled to run by the hypervisor. This is particular
Introduce a field in /proc//stat to expose guest steal time.
Signed-off-by: Naveen N. Rao
---
fs/proc/array.c | 6 ++
include/linux/sched.h | 7 +++
kernel/fork.c | 2 +-
3 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/fs/proc/array.c b/fs/proc/array.c
index
Steal time accounts the time duration during which a guest vcpu was ready to
run, but was not scheduled to run by the hypervisor. This is particularly
relevant in cloud environment where customers would want to use this as an
indicator that their guests are being throttled. However, as it stands to
On powerpc, kvm tracks both the guest steal time as well as the time
when guest was idle and this gets sent in to the guest through DTL. The
guest accounts these entries as either steal time or idle time based on
the last running task. Since the true guest idle status is not visible
to the host, we
Report guest steal time in host task statistics. On x86, this is just
the scheduler run_delay.
Signed-off-by: Naveen N. Rao
---
arch/x86/kvm/x86.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 0ee725f..737b0e4 100644
--- a/arch/x86/kvm/x86.c
++
On 5 May 2015 at 12:34, Ulf Hansson wrote:
> On 5 May 2015 at 11:17, Suman Tripathi wrote:
>> This patch adds the arasan sdhc nodes to reuse the of-arasan
>> driver for APM X-Gene SoC.
>>
>> Signed-off-by: Suman Tripathi
>
> I consider this one acked by Arnd, due to:
> http://www.spinics.net/lis
Add 1588 timer node in files:
arch/powerpc/boot/dts/bsc9131rdb.dtsi
arch/powerpc/boot/dts/bsc9132qds.dtsi
arch/powerpc/boot/dts/p1010rdb.dtsi
arch/powerpc/boot/dts/p1020rdb-pd.dts
arch/powerpc/boot/dts/p1021rdb-pc.dtsi
arch/powerpc/boot/dts/p1022ds.dtsi
arch/powerpc/boot/dts/p1025twr.dtsi
arch/powe
On 05/06/2015 12:09 AM, Nishanth Aravamudan wrote:
On 03.04.2015 [10:45:56 -0700], Nishanth Aravamudan wrote:
What I find somewhat worrying though is that we could potentially
break the pfmemalloc_watermark_ok() test in situations where
zone_reclaimable_pages(zone) == 0 is a transient situation
"Kirill A. Shutemov" writes:
> On Mon, May 04, 2015 at 10:59:16PM +0530, Aneesh Kumar K.V wrote:
>> Archs like ppc64 require pte_t * to remain stable in some code path.
>> They use local_irq_disable to prevent a parallel split. Generic code
>> clear pmd instead of marking it _PAGE_SPLITTING in co
On Wednesday 06 May 2015 09:45:15 Michal Simek wrote:
> On 05/06/2015 09:31 AM, Arnd Bergmann wrote:
> > On Wednesday 06 May 2015 10:41:07 Suman Tripathi wrote:
> @@ -533,6 +567,16 @@
> interrupts = <0x0 0x4f 0x4>;
> };
>
> +
On 05/06/2015 09:31 AM, Arnd Bergmann wrote:
> On Wednesday 06 May 2015 10:41:07 Suman Tripathi wrote:
@@ -533,6 +567,16 @@
interrupts = <0x0 0x4f 0x4>;
};
+ sdhc0: sdhc@1c00 {
+ device_typ
On Wed, 2015-05-06 at 00:02 -0700, Stephen Boyd wrote:
> On 04/16, Igal.Liberman wrote:
> > +static int get_fm_clk_idx(int fm_id, int *fm_clk_idx)
> > +{
> > + struct ccsr_guts __iomem *guts_regs = NULL;
>
> Unnecessary initialization to NULL. Also, marking a structure as
> __iomem is odd. Why d
On Wednesday 06 May 2015 10:41:07 Suman Tripathi wrote:
> >> @@ -533,6 +567,16 @@
> >> interrupts = <0x0 0x4f 0x4>;
> >> };
> >>
> >> + sdhc0: sdhc@1c00 {
> >> + device_type = "sdhc";
> >
> > device_type generally shoul
Signed-off-by: Yangbo Lu
---
arch/powerpc/configs/corenet32_smp_defconfig | 2 ++
arch/powerpc/configs/corenet64_smp_defconfig | 2 ++
2 files changed, 4 insertions(+)
diff --git a/arch/powerpc/configs/corenet32_smp_defconfig
b/arch/powerpc/configs/corenet32_smp_defconfig
index ca7957b..17fb2e0
On 04/16, Igal.Liberman wrote:
> From: Igal Liberman
>
> This patch depends on the following patches:
> https://patchwork.ozlabs.org/patch/461151/
> https://patchwork.ozlabs.org/patch/461155/
>
> This patche is described by the following binding document update:
> https://patch
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