Currently, perf probe considers patterns including a '.' to be a file.
However, this causes problems on powerpc ABIv1 where all functions have
a leading '.':
$ perf probe -F | grep schedule_timeout_interruptible
.schedule_timeout_interruptible
$ perf probe .schedule_timeout_interruptible
Geert Uytterhoeven ge...@linux-m68k.org writes:
Can't see that one with a simple grep: can you post warning?
/home/kisskb/slave/src/arch/tile/kernel/setup.c: In function
'zone_sizes_init':
/home/kisskb/slave/src/arch/tile/kernel/setup.c:777:3: warning:
passing argument 2 of
On 04/27/2015 07:17 PM, Vasant Hegde wrote:
On 04/27/2015 04:45 PM, Jacek Anaszewski wrote:
On 04/27/2015 11:53 AM, Benjamin Herrenschmidt wrote:
On Mon, 2015-04-27 at 09:24 +0200, Jacek Anaszewski wrote:
I was not aware that some other entity than the driver could be
interested in the
Allow perf probe to work on ppc ABIv1 without the need to specify the
leading dot '.' for functions. 'perf probe do_fork' works with this
patch.
We do this by changing how symbol name comparison works on ppc ABIv1 -
we simply ignore and skip over the initial dot, if one exists, during
symbol name
Em Tue, Apr 28, 2015 at 05:35:34PM +0530, Naveen N. Rao escreveu:
Currently, perf probe considers patterns including a '.' to be a file.
However, this causes problems on powerpc ABIv1 where all functions have
a leading '.':
$ perf probe -F | grep schedule_timeout_interruptible
Em Tue, Apr 28, 2015 at 05:35:33PM +0530, Naveen N. Rao escreveu:
This patchset fixes various issues with perf probe on powerpc across ABIv1 and
ABIv2:
- in the presence of DWARF debug-info,
- in the absence of DWARF, but with the symbol table, and
- in the absence of debug-info, but with
Em Tue, Apr 28, 2015 at 05:35:35PM +0530, Naveen N. Rao escreveu:
If using the symbol table, symbol addresses are not being fixed up
properly, resulting in probes being placed at wrong addresses:
# perf probe do_fork
Added new event:
probe:do_fork(on do_fork)
You can
When we test the cpu and memory hotplug feature in the server with x86
architecture and kernel4.0-rc4,we met the similar problem.
The situation is that when memory in node0 is offline,the system is down during
booting.
Following is the bug information:
[0.335176] BUG: unable to handle
On 2015/04/28 22:54, Arnaldo Carvalho de Melo wrote:
Em Tue, Apr 28, 2015 at 05:35:33PM +0530, Naveen N. Rao escreveu:
This patchset fixes various issues with perf probe on powerpc across ABIv1
and
ABIv2:
- in the presence of DWARF debug-info,
- in the absence of DWARF, but with the symbol
Use the proper prefix when ignoring SyS symbols on ppc ABIv1. While at
it, generalize symbol selection so architectures can implement their
own logic.
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
Reviewed-by: Srikar Dronamraju sri...@linux.vnet.ibm.com
---
Changes:
- Move logic to
This patchset fixes various issues with perf probe on powerpc across ABIv1 and
ABIv2:
- in the presence of DWARF debug-info,
- in the absence of DWARF, but with the symbol table, and
- in the absence of debug-info, but with kallsyms.
Arnaldo,
I have moved all patches to use __weak functions.
Use symbol table lookups by default if DWARF is not necessary, since
powerpc ABIv2 encodes local entry points in the symbol table and the
function entry address in DWARF may not be appropriate for kprobes, as
described here:
https://sourceware.org/bugzilla/show_bug.cgi?id=17638
The DWARF address
From: Ananth N Mavinakayanahalli ana...@in.ibm.com
ppc64 ELF ABIv2 has a Global Entry Point (GEP) and a Local Entry Point
(LEP). For purposes of probing, we need the LEP - the offset to which is
encoded in st_other.
Signed-off-by: Ananth N Mavinakayanahalli ana...@in.ibm.com
Signed-off-by:
If using the symbol table, symbol addresses are not being fixed up
properly, resulting in probes being placed at wrong addresses:
# perf probe do_fork
Added new event:
probe:do_fork(on do_fork)
You can now use it in all perf tools, such as:
perf record -e
On powerpc ABIv2, if no debug-info is found and we use kallsyms, we need
to fixup the function entry to point to the local entry point. Use
offset of 8 since current toolchains always generate 2 instructions (8
bytes).
Signed-off-by: Naveen N. Rao naveen.n@linux.vnet.ibm.com
Reviewed-by:
cc Chris
On Tue, Apr 28, 2015 at 2:24 PM, Rusty Russell ru...@rustcorp.com.au wrote:
Geert Uytterhoeven ge...@linux-m68k.org writes:
Can't see that one with a simple grep: can you post warning?
/home/kisskb/slave/src/arch/tile/kernel/setup.c: In function
'zone_sizes_init':
On 04/27/2015 06:02 PM, Nikunj A Dadhania wrote:
patch 1: Fixes a bug in pci-to-pci bridge while programming the limit
registers during probe
patch 2,3: Support 64-bit address translation and usb devices can have
64-bit pci memory BARs
patch 4: Use QEMU create device
On Sat, Apr 25, 2015 at 10:14:25PM +1000, Alexey Kardashevskiy wrote:
The iommu_free_table helper release memory it is using (the TCE table and
@it_map) and release the iommu_table struct as well. We might not want
the very last step as we store iommu_table in parent structures.
On Sat, Apr 25, 2015 at 10:14:32PM +1000, Alexey Kardashevskiy wrote:
This is a pretty mechanical patch to make next patches simpler.
New tce_iommu_unuse_page() helper does put_page() now but it might skip
that after the memory registering patch applied.
As we are here, this removes
Alexey Kardashevskiy a...@ozlabs.ru writes:
On 04/27/2015 06:02 PM, Nikunj A Dadhania wrote:
patch 1: Fixes a bug in pci-to-pci bridge while programming the limit
registers during probe
patch 2,3: Support 64-bit address translation and usb devices can have
On Sat, Apr 25, 2015 at 10:14:37PM +1000, Alexey Kardashevskiy wrote:
This adds tce_iommu_take_ownership() and tce_iommu_release_ownership
which call in a loop iommu_take_ownership()/iommu_release_ownership()
for every table on the group. As there is just one now, no change in
behaviour is
On Sat, Apr 25, 2015 at 10:14:33PM +1000, Alexey Kardashevskiy wrote:
This is to make extended ownership and multiple groups support patches
simpler for review.
This should cause no behavioural change.
Um.. this doesn't appear to be true. Previously removing a group from
an enabled
On 2015/04/29 07:17AM, Masami Hiramatsu wrote:
On 2015/04/28 22:54, Arnaldo Carvalho de Melo wrote:
Em Tue, Apr 28, 2015 at 05:35:33PM +0530, Naveen N. Rao escreveu:
This patchset fixes various issues with perf probe on powerpc across ABIv1
and
ABIv2:
- in the presence of DWARF
On Sat, Apr 25, 2015 at 10:14:46PM +1000, Alexey Kardashevskiy wrote:
TCE tables might get too big in case of 4K IOMMU pages and DDW enabled
on huge guests (hundreds of GB of RAM) so the kernel might be unable to
allocate contiguous chunk of physical memory to store the TCE table.
To address
On Sat, Apr 25, 2015 at 10:14:43PM +1000, Alexey Kardashevskiy wrote:
This moves iommu_table creation to the beginning to make following changes
easier to review. This starts using table parameters from the iommu_table
struct.
This should cause no behavioural change.
Signed-off-by: Alexey
On Sat, Apr 25, 2015 at 10:14:40PM +1000, Alexey Kardashevskiy wrote:
At the moment the DMA setup code looks for the ibm,opal-tce-kill property
which contains the TCE kill register address. Writes to this register
invalidates TCE cache on IODA/IODA2 hub.
This moves the register address from
On Sat, Apr 25, 2015 at 10:14:36PM +1000, Alexey Kardashevskiy wrote:
Modern IBM POWERPC systems support multiple (currently two) TCE tables
per IOMMU group (a.k.a. PE). This adds a iommu_table_group container
for TCE tables. Right now just one table is supported.
For P5IOC2 and IODA,
On Sat, Apr 25, 2015 at 10:14:49PM +1000, Alexey Kardashevskiy wrote:
Before the IOMMU user (VFIO) would take control over the IOMMU table
belonging to a specific IOMMU group. This approach did not allow sharing
tables between IOMMU groups attached to the same container.
This introduces a
On Sat, Apr 25, 2015 at 10:14:45PM +1000, Alexey Kardashevskiy wrote:
This is a part of moving DMA window programming to an iommu_ops
callback. pnv_pci_ioda2_set_window() takes an iommu_table_group as
a first parameter (not pnv_ioda_pe) as it is going to be used as
a callback for VFIO DDW
On Sat, Apr 25, 2015 at 10:14:38PM +1000, Alexey Kardashevskiy wrote:
This adds missing locks in iommu_take_ownership()/
iommu_release_ownership().
This marks all pages busy in iommu_table::it_map in order to catch
errors if there is an attempt to use this table while ownership over it
is
Subject should be powerpc/pseries: ... please.
On Tue, 2015-04-28 at 10:37 -0500, Nathan Fontenot wrote:
The incorrect ordering of operations during cpu dlpar causes the affinity
of cpus being added to be invalid. Phyp does not assign affinity information
for a cpu until the rtas set-indicator
On Sat, Apr 25, 2015 at 10:14:41PM +1000, Alexey Kardashevskiy wrote:
This replaces direct accesses to TCE table with a helper which
returns an TCE entry address. This does not make difference now but will
when multi-level TCE tables get introduces.
No change in behavior is expected.
On Sat, Apr 25, 2015 at 10:14:39PM +1000, Alexey Kardashevskiy wrote:
The pnv_pci_ioda_tce_invalidate() helper invalidates TCE cache. It is
supposed to be called on IODA1/2 and not called on p5ioc2. It receives
start and end host addresses of TCE table.
IODA2 actually needs PCI addresses to
On Sat, Apr 25, 2015 at 10:14:26PM +1000, Alexey Kardashevskiy wrote:
This reverts commit 9e8d4a19ab66ec9e132d405357b9108a4f26efd3 as
tce32_table has exactly the same life time as the whole PE.
This makes use of a new iommu_reset_table() helper instead.
Signed-off-by: Alexey Kardashevskiy
* Arnaldo Carvalho de Melo a...@kernel.org [2015-04-28 10:54:53]:
Em Tue, Apr 28, 2015 at 05:35:33PM +0530, Naveen N. Rao escreveu:
This patchset fixes various issues with perf probe on powerpc across ABIv1
and
ABIv2:
- in the presence of DWARF debug-info,
- in the absence of DWARF,
On Sat, Apr 25, 2015 at 10:14:47PM +1000, Alexey Kardashevskiy wrote:
This extends iommu_table_group_ops by a set of callbacks to support
dynamic DMA windows management.
create_table() creates a TCE table with specific parameters.
it receives iommu_table_group to know nodeid in order to
On Sat, Apr 25, 2015 at 10:14:44PM +1000, Alexey Kardashevskiy wrote:
This is a part of moving TCE table allocation into an iommu_ops
callback to support multiple IOMMU groups per one VFIO container.
This moves a table creation window to the file with common powernv-pci
helpers as it does
On Sat, Apr 25, 2015 at 10:14:42PM +1000, Alexey Kardashevskiy wrote:
At the moment writing new TCE value to the IOMMU table fails with EBUSY
if there is a valid entry already. However PAPR specification allows
the guest to write new TCE value without clearing it first.
Another problem this
Em Tue, Apr 28, 2015 at 09:42:17PM +0530, Naveen N. Rao escreveu:
On 2015/04/28 10:54AM, Arnaldo Carvalho de Melo wrote:
Em Tue, Apr 28, 2015 at 05:35:33PM +0530, Naveen N. Rao escreveu:
This patchset fixes various issues with perf probe on powerpc across
ABIv1 and
ABIv2:
- in the
On 2015/04/28 10:54AM, Arnaldo Carvalho de Melo wrote:
Em Tue, Apr 28, 2015 at 05:35:33PM +0530, Naveen N. Rao escreveu:
This patchset fixes various issues with perf probe on powerpc across ABIv1
and
ABIv2:
- in the presence of DWARF debug-info,
- in the absence of DWARF, but with the
On Monday 27 April 2015 21:25:20 Suman Tripathi wrote:
On Monday 27 April 2015 20:33:25 Suman Tripathi wrote:
On Tuesday 21 April 2015 21:12:39 Suman Tripathi wrote:
+ host-quirks |= SDHCI_QUIRK_BROKEN_DMA;
+
+ if (of_get_property(np,
Le 25/03/2015 02:30, Scott Wood a écrit :
On Tue, Feb 03, 2015 at 12:39:27PM +0100, LEROY Christophe wrote:
The C version of csum_add() as defined in include/net/checksum.h gives the
following assembly:
0: 7c 04 1a 14 add r0,r4,r3
4: 7c 64 00 10 subfc
The code accidentally used cpu_isset() previously in one place
(though properly node_isset() elsewhere).
Signed-off-by: Chris Metcalf cmetc...@ezchip.com
---
arch/tile/kernel/setup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/tile/kernel/setup.c
Today the number of bits of the broadcast masks that is output into
/proc/timer_list is sizeof(unsigned long). This means that on machines
with larger number of CPUs, the bitmasks of CPUs beyond this range do
not appear.
Fix this by using bitmap printing through %*pb instead, so as to
output the
On 28 April 2015 at 13:48, Shilpasri G Bhat
shilpa.b...@linux.vnet.ibm.com wrote:
My bad I haven't added explicit comment to state reason behind this change.
I modified the definition of *throttle_check() to match the function
definition
to be called via smp_call() instead of adding an
On Tue, Apr 28, 2015 at 10:42:47AM +1000, Michael Ellerman wrote:
Commit 34cb7954c0aa Convert ICS mutex lock to spin lock added an
include of asm/spinlock.h, which does not work in the SMP=n case.
It should instead include linux/spinlock.h
Fixes: 34cb7954c0aa (KVM: PPC: Book3S HV: Convert
Hi Viresh,
On 04/28/2015 12:18 PM, Viresh Kumar wrote:
On 28 April 2015 at 11:53, Shilpasri G Bhat
shilpa.b...@linux.vnet.ibm.com wrote:
Changes from v1:
- Add macros to define OCC_RESET, OCC_LOAD and OCC_THROTTLE
- Define a structure to store chip id, chip mask which has bits set
for
On 04/28/2015 02:23 PM, Viresh Kumar wrote:
On 28 April 2015 at 13:48, Shilpasri G Bhat
shilpa.b...@linux.vnet.ibm.com wrote:
My bad I haven't added explicit comment to state reason behind this change.
I modified the definition of *throttle_check() to match the function
definition
to be
Le 25/03/2015 02:22, Scott Wood a écrit :
On Tue, Feb 03, 2015 at 12:39:27PM +0100, LEROY Christophe wrote:
Signed-off-by: Christophe Leroy christophe.le...@c-s.fr
---
arch/powerpc/lib/checksum_32.S | 10 +++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git
Le 25/03/2015 03:10, Scott Wood a écrit :
On Tue, 2015-02-03 at 12:39 +0100, Christophe Leroy wrote:
csum_tcpudp_magic() is only a few instructions, and does not modifies any other
register than the returned result. So it is not worth having it as a separate
function and suffer function
Geert Uytterhoeven ge...@linux-m68k.org writes:
On Mon, Apr 27, 2015 at 11:51 AM, Geert Uytterhoeven
ge...@linux-m68k.org wrote:
Below is the list of build error/warning regressions/improvements in
v4.1-rc1[1] compared to v4.0[2].
Summarized:
- build errors: +34/-11
- build warnings:
OCC is an On-Chip-Controller which takes care of power and thermal
safety of the chip. During runtime due to power failure or
overtemperature the OCC may throttle the frequencies of the CPUs to
remain within the power budget.
We want the cpufreq driver to be aware of such situations to be able
to
On Tue, Apr 28, 2015 at 6:39 AM, Rusty Russell ru...@rustcorp.com.au wrote:
+ /home/kisskb/slave/src/arch/mips/cavium-octeon/smp.c: error: passing
argument 2 of 'cpumask_clear_cpu' discards 'volatile' qualifier from
pointer target type [-Werror]: = 242:2
+
On 28 April 2015 at 11:53, Shilpasri G Bhat
shilpa.b...@linux.vnet.ibm.com wrote:
Changes from v1:
- Add macros to define OCC_RESET, OCC_LOAD and OCC_THROTTLE
- Define a structure to store chip id, chip mask which has bits set
for cpus present in the chip, throttled state and a work_struct.
From: Anshuman Khandual khand...@linux.vnet.ibm.com
This patch registers the following two new OPAL interfaces calls
for the platform LED subsystem. With the help of these new OPAL calls,
the kernel will be able to get or set the state of various individual
LEDs on the system at any given
The following series implements LED driver for PowerNV platform.
PowerNV platform has below type of LEDs:
- System attention
Indicates there is a problem with the system that needs attention.
- Identify
Helps the user locate/identify a particular FRU or resource in the
This patch implements LED driver for PowerNV platform using the existing
generic LED class framework.
PowerNV platform has below type of LEDs:
- System attention
Indicates there is a problem with the system that needs attention.
- Identify
Helps the user locate/identify a
This patch adds paltform devices for leds. Also export LED related
OPAL API's so that led driver can use these APIs.
Signed-off-by: Vasant Hegde hegdevas...@linux.vnet.ibm.com
---
arch/powerpc/platforms/powernv/opal.c | 12 +++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff
On Tuesday 28 April 2015 15:40:35 Vasant Hegde wrote:
+++ b/Documentation/devicetree/bindings/leds/leds-powernv.txt
@@ -0,0 +1,29 @@
+Device Tree binding for LEDs on IBM Power Systems
+-
+
+The 'led' node under '/ibm,opal' lists service
On 04/28/2015 07:18 PM, Sebastian Herbszt wrote:
Alexey Kardashevskiy wrote:
This reverts 4fbdf9cb is breaks LPFC on POWER7 machine, big endian kernel.
This is the hardware used for verification:
0005:01:00.0 Fibre Channel [0c04]: Emulex Corporation Saturn-X: LightPulse
Fibre Channel Host
Alexey Kardashevskiy wrote:
This reverts 4fbdf9cb is breaks LPFC on POWER7 machine, big endian kernel.
This is the hardware used for verification:
0005:01:00.0 Fibre Channel [0c04]: Emulex Corporation Saturn-X: LightPulse
Fibre Channel Host Adapter [10df:f100] (rev 03)
0005:01:00.1 Fibre
On 04/28/2015 08:59 AM, Stewart Smith wrote:
Jacek Anaszewski j.anaszewsk...@gmail.com writes:
Is the DT node we are discussing used by some other drivers than the
LED class driver? Or is it required in this form by other components of
your platform?
OS kernels are the chief consumers, Linux
Add OPAL_MSG_OCC message definition to opal_message_type to receive
OCC events like reset, load and throttled. Host performance can be
affected when OCC is reset or OCC throttles the max Pstate.
We can register to opal_message_notifier to receive OPAL_MSG_OCC type
of message and report it to the
This patchset intends to add frequency throttle reporting mechanism
to powernv-cpufreq driver when OCC throttles the frequency. OCC is an
On-Chip-Controller which takes care of the power and thermal safety of
the chip. The CPU frequency can be throttled during an OCC reset or
when OCC tries to
Jacek Anaszewski j.anaszewsk...@gmail.com writes:
Is the DT node we are discussing used by some other drivers than the
LED class driver? Or is it required in this form by other components of
your platform?
OS kernels are the chief consumers, Linux being the overwhelmingly major
one here.
But
Hello Rui Zhang,
Please help to review this Thermal Management driver.
Thanks.
---
Best Regards,
Hongtao
-Original Message-
From: Jia Hongtao [mailto:hongtao@freescale.com]
Sent: Friday, April 03, 2015 3:11 PM
To: rui.zh...@intel.com
Cc: linux...@vger.kernel.org;
On 28.04.15 02:42, Michael Ellerman wrote:
Commit 34cb7954c0aa Convert ICS mutex lock to spin lock added an
include of asm/spinlock.h, which does not work in the SMP=n case.
It should instead include linux/spinlock.h
Fixes: 34cb7954c0aa (KVM: PPC: Book3S HV: Convert ICS mutex lock to
This reverts 4fbdf9cb is breaks LPFC on POWER7 machine, big endian kernel.
This is the hardware used for verification:
0005:01:00.0 Fibre Channel [0c04]: Emulex Corporation Saturn-X: LightPulse
Fibre Channel Host Adapter [10df:f100] (rev 03)
0005:01:00.1 Fibre Channel [0c04]: Emulex Corporation
The incorrect ordering of operations during cpu dlpar causes the affinity
of cpus being added to be invalid. Phyp does not assign affinity information
for a cpu until the rtas set-indicator calls are made to set the isolation
and allocation state. In the current code we call rtas
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