This patchset is the re-spin of the original branch stack sampling
patchset which introduced new PERF_SAMPLE_BRANCH_COND filter. This patchset
also enables SW based branch filtering support for PPC64 platforms which have
branch stack sampling support. With this new enablement, the branch fi
This patch enables SW based post processing of BHRB captured branches
to be able to meet more user defined branch filtration criteria in perf
branch stack sampling framework. This changes increase the number of
filters and their valid combinations on powerpc64 platform with BHRB
support. Summary of
Adding perf record support for new branch stack filter criteria
PERF_SAMPLE_BRANCH_COND.
Signed-off-by: Anshuman Khandual
---
tools/perf/builtin-record.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index ecca62e..802d11d 100644
--
Adding documentation support for conditional branch filter.
Signed-off-by: Anshuman Khandual
Reviewed-by: Stephane Eranian
---
tools/perf/Documentation/perf-record.txt | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/perf/Documentation/perf-record.txt
b/tools/perf/Do
This patch adds conditional branch filtering support,
enabling it for PERF_SAMPLE_BRANCH_COND in perf branch
stack sampling framework by utilizing an available
software filter X86_BR_JCC.
Signed-off-by: Anshuman Khandual
Reviewed-by: Stephane Eranian
---
arch/x86/kernel/cpu/perf_event_intel_lbr
Enables conditional branch filter support for POWER8
utilizing MMCRA register based filter and also invalidates
a BHRB branch filter combination involving conditional
branches.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/perf/power8-pmu.c | 10 ++
1 file changed, 10 insertions(+)
POWER8 PMU based BHRB supports filtering for conditional branches.
This patch introduces new branch filter PERF_SAMPLE_BRANCH_COND which
will extend the existing perf ABI. Other architectures can provide
this functionality with either HW filtering support (if present) or
with SW filtering of instru
(2013/08/30 9:22), Toshi Kani wrote:
> lock_device_hotplug() was recently introduced to serialize CPU & Memory
> online/offline and hotplug operations, along with sysfs online interface
> restructure (commit 4f3549d7). With this new locking scheme,
> cpu_hotplug_driver_lock() is redundant and is n
cpu_hotplug_driver_lock() serializes CPU online/offline operations
when ARCH_CPU_PROBE_RELEASE is set. This lock interface is no longer
necessary with the following reason:
- lock_device_hotplug() now protects CPU online/offline operations,
including the probe & release interfaces enabled by
lock_device_hotplug() was recently introduced to serialize CPU & Memory
online/offline and hotplug operations, along with sysfs online interface
restructure (commit 4f3549d7). With this new locking scheme,
cpu_hotplug_driver_lock() is redundant and is no longer necessary.
This patchset makes sure
Commit d7c53c9e enabled ARCH_CPU_PROBE_RELEASE on x86 in order to
serialize CPU online/offline operations. Although it is the config
option to enable CPU hotplug test interfaces, probe & release, it is
also the option to enable cpu_hotplug_driver_lock() as well. Therefore,
this option had to be e
lock_device_hotplug[_sysfs]() serializes CPU & Memory online/offline
and hotplug operations. However, this lock is not held in the debug
interfaces below that initiate CPU online/offline operations.
- _debug_hotplug_cpu(), cpu0 hotplug test interface enabled by
CONFIG_DEBUG_HOTPLUG_CPU0.
- c
_debug_hotplug_cpu() is a debug interface that puts cpu0 offline during
boot-up when CONFIG_DEBUG_HOTPLUG_CPU0 is set. After cpu0 is put offline
in this interface, however, /sys/devices/system/cpu/cpu0/online still
shows 1 (online).
This patch fixes _debug_hotplug_cpu() to update dev->offline whe
On Fri, 2013-08-30 at 02:06 +0200, Rafael J. Wysocki wrote:
> On Thursday, August 29, 2013 11:15:10 AM Toshi Kani wrote:
> > On Sun, 2013-08-18 at 03:02 +0200, Rafael J. Wysocki wrote:
> > > On Saturday, August 17, 2013 01:46:55 PM Toshi Kani wrote:
> > > > lock_device_hotplug() was recently introd
On Thursday, August 29, 2013 11:15:10 AM Toshi Kani wrote:
> On Sun, 2013-08-18 at 03:02 +0200, Rafael J. Wysocki wrote:
> > On Saturday, August 17, 2013 01:46:55 PM Toshi Kani wrote:
> > > lock_device_hotplug() was recently introduced to serialize CPU & Memory
> > > online/offline and hotplug oper
Stephen N Chivers/AUS/CSC wrote on 08/22/2013 10:58:10 AM:
> From: Stephen N Chivers/AUS/CSC
> To: Scott Wood
> Cc: b...@kernel.crashing.org, Chris Proctor ,
> linuxppc-dev@lists.ozlabs.org, pau...@samba.org, Stephen N Chivers
>
> Date: 08/22/2013 10:58 AM
> Subject: Re: [RFC PATCH 1/1] powerp
I am out of the office until 11/09/2013.
Note: This is an automated response to your message "Linuxppc-dev Digest,
Vol 108, Issue 258" sent on 29/08/2013 21:47:50.
This is the only notification you will receive while this person is away.
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Linux
leroy christophe wrote on 2013/08/29 23:04:03:
>
> Le 29/08/2013 19:57, Joakim Tjernlund a écrit :
> > "Linuxppc-dev"
> >
> > wrote on 2013/08/29 19:11:48:
> >> The mpc8xx powerpc has an errata identified CPU15 which is that
whenever
> >> the last instruction of a page is a conditional branch t
kzalloc already adds this __GFP_ZERO.
Signed-off-by: Joe Perches
---
drivers/tty/hvc/hvc_xen.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 682210d..e61c36c 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drive
Le 29/08/2013 19:57, Joakim Tjernlund a écrit :
"Linuxppc-dev"
wrote on 2013/08/29 19:11:48:
The mpc8xx powerpc has an errata identified CPU15 which is that whenever
the last instruction of a page is a conditional branch to the last
instruction of the next page, the CPU might do crazy things.
On Mon, 29 Jul 2013 13:11:50 +1000, Anton Blanchard wrote:
>
> Hi,
>
> > be32_to_cpu(initial_boot_params->totalsize);
>
> Ouch, thanks Grant.
>
> Anton
> --
>
> We feed the entire DMI table into the random pool to provide
> better random data during early boot, so do the same with the
> flatt
On 08/27/2013 10:04 PM, Nicolin Chen wrote:
> This patch implements a device-tree-only machine driver for Freescale
> i.MX series Soc. It works with spdif_transmitter/spdif_receiver and
> fsl_spdif.c drivers.
Sorry for the slow response. For the record, the binding,
Acked-by: Stephen Warren
_
"Linuxppc-dev"
wrote on 2013/08/29 19:11:48:
> The mpc8xx powerpc has an errata identified CPU15 which is that whenever
> the last instruction of a page is a conditional branch to the last
> instruction of the next page, the CPU might do crazy things.
>
> To work around this errata, one of t
On Sun, 2013-08-18 at 03:02 +0200, Rafael J. Wysocki wrote:
> On Saturday, August 17, 2013 01:46:55 PM Toshi Kani wrote:
> > lock_device_hotplug() was recently introduced to serialize CPU & Memory
> > online/offline and hotplug operations, along with sysfs online interface
> > restructure (commit 4
The mpc8xx powerpc has an errata identified CPU15 which is that whenever
the last instruction of a page is a conditional branch to the last
instruction of the next page, the CPU might do crazy things.
To work around this errata, one of the workarounds proposed by freescale is:
"In the ITLB miss
Each call to the co-processor, with exception of the last call, needs to
send data that is multiple of block size. As consequence, any remaining
data is kept in the internal NX context.
This patch fixes a bug in the driver that causes it to save incorrect
data into the context when data is bigger
The NX CGM implementation doesn't support zero length messages and the
current implementation has two flaws:
- When the input data length is zero, it ignores the associated data.
- Even when both lengths are zero, it uses the Crypto API to encrypt a
zeroed block using ctr(aes) and because of
The NX XCBC implementation doesn't support zero length messages and
because of that NX is currently returning a hard-coded hash for zero
length messages. However this approach is incorrect since the hash value
also depends on which key is used.
This patch removes the hard-coded hash and replace it
This patch updates the nx-aes-cbc implementation to perform several
hyper calls if needed in order to always respect the length limits for
scatter/gather lists.
Two different limits are considered:
- "ibm,max-sg-len": maximum number of bytes of each scatter/gather
list.
- "ibm,max-sync-cop"
From: Fionnuala Gunter
This patch updates the NX driver to perform several hyper calls when necessary
so that the length limits of scatter/gather lists are respected.
Reviewed-by: Joy Latten
Reviewed-by: Marcelo Cerri
Signed-off-by: Fionnuala Gunter
---
drivers/crypto/nx/nx-aes-xcbc.c | 107
From: Fionnuala Gunter
This patch updates the NX driver to perform several hyper calls when necessary
so that the length limits of scatter/gather lists are respected.
Reviewed-by: Marcelo Cerri
Signed-off-by: Joy Latten
Signed-off-by: Fionnuala Gunter
---
drivers/crypto/nx/nx-aes-ccm.c | 297
This patch updates the nx-aes-gcm implementation to perform several
hyper calls if needed in order to always respect the length limits for
scatter/gather lists.
Two different limits are considered:
- "ibm,max-sg-len": maximum number of bytes of each scatter/gather
list.
- "ibm,max-sync-cop"
This patch updates the nx-aes-ctr implementation to perform several
hyper calls if needed in order to always respect the length limits for
scatter/gather lists.
Two different limits are considered:
- "ibm,max-sg-len": maximum number of bytes of each scatter/gather
list.
- "ibm,max-sync-cop"
This patch updates the nx-aes-ecb implementation to perform several
hyper calls if needed in order to always respect the length limits for
scatter/gather lists.
Two different limits are considered:
- "ibm,max-sg-len": maximum number of bytes of each scatter/gather
list.
- "ibm,max-sync-cop"
This patch includes one more parameter to nx_build_sg_lists() to skip
the given number of bytes from beginning of each sg list.
This is needed in order to implement the fixes for the AES modes to make
them able to process larger chunks of data.
Reviewed-by: Joy Latten
Signed-off-by: Marcelo Cerr
This series of patches contains fixes in several algorithms implemented
by the NX driver. The patches can be separated in three different
categories:
- Changes to split the data in several hyper calls to respect the
limits of data that the co-processador can handle. This affects
all AES m
On Thu, Aug 29, 2013 at 02:42:22PM +1000, Herbert Xu wrote:
> On Fri, Aug 23, 2013 at 05:01:07PM -0300, Marcelo Cerri wrote:
> > This patch updates the nx-aes-cbc implementation to perform several
> > hyper calls if needed in order to always respect the length limits for
> > scatter/gather lists.
>
Hi Ben
On Wednesday 07 August 2013 04:48 PM, Madhavan Srinivasan wrote:
> Patch attempts to improve the performace of __arch_hweight functions by
> making them inline instead of current out of line implementation.
>
> Testcase is to disable/enable SMT on a large (192 thread) POWER7 lpar.
> Progra
On Thu, Aug 29, 2013 at 08:00:05AM +0800, Wei Yongjun wrote:
> From: Wei Yongjun
>
> There is a error message within devm_ioremap_resource
> already, so remove the dev_err call to avoid redundant
> error message.
Applied, thanks.
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___
On Wed, Aug 28, 2013 at 12:04:46PM +0800, Nicolin Chen wrote:
> This patch implements a device-tree-only machine driver for Freescale
> i.MX series Soc. It works with spdif_transmitter/spdif_receiver and
> fsl_spdif.c drivers.
Applied, thanks.
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___
On Wed, Aug 28, 2013 at 08:46:38PM +0100, Grant Likely wrote:
> On Thu, 22 Aug 2013 14:59:30 +0100, Mark Rutland wrote:
> > On Mon, Aug 19, 2013 at 02:56:10PM +0100, Sudeep KarkadaNagesha wrote:
> > > On 19/08/13 14:02, Rob Herring wrote:
> > > > On 08/19/2013 05:19 AM, Mark Rutland wrote:
> > > >
This is the traditional name for device-tree path, used in sysfs,
do the same for the XSCOM debugfs files.
Signed-off-by: Benjamin Herrenschmidt
---
arch/powerpc/sysdev/scom.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/sc
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