On Monday 08 September 2014 06:35 PM, Alexander Graf wrote:
On 07.09.14 18:31, Madhavan Srinivasan wrote:
This patch adds kernel side support for software breakpoint.
Design is that, by using an illegal instruction, we trap to hypervisor
via Emulation Assistance interrupt, where we check
On Monday 08 September 2014 06:39 PM, Alexander Graf wrote:
On 07.09.14 18:31, Madhavan Srinivasan wrote:
This patch extends the use of illegal instruction as software
breakpoint instruction across the ppc platform. Patch extends
booke program interrupt code to support software breakpoint.
On Monday 08 September 2014 19:27:14 H. Peter Anvin wrote:
On 09/08/2014 03:43 PM, James Bottomley wrote:
This was years ago (possibly decades). We had to implement in-kernel
unaligned traps for the networking layer because it could access short
and int fields that weren't of the
Move the ipg clock enable and disable operation to startup and shutdown,
that is only enable ipg clock when ssi is working. we don't need to enable
ipg clock in probe.
Another register accessing need the ipg clock, so use devm_regmap_init_mmio_clk
instead of devm_regmap_init_mmio.
Signed-off-by:
Resending with v2 added to each subject line:
Currently in the event of a stack overrun a call to schedule()
does not check for this type of corruption. This corruption is
often silent and can go unnoticed. However once the corrupted
region is examined at a later stage, the outcome is undefined
Currently in the event of a stack overrun a call to schedule()
does not check for this type of corruption. This corruption is
often silent and can go unnoticed. However once the corrupted
region is examined at a later stage, the outcome is undefined
and often results in a sporadic page fault which
Tasks get their end of stack set to STACK_END_MAGIC with the
aim to catch stack overruns. Currently this feature does not
apply to init_task. This patch removes this restriction.
Note that a similar patch was posted by Prarit Bhargava [1]
some time ago but was never merged.
[1]:
This facility is used in a few places so let's introduce
a helper function to improve code readability.
Signed-off-by: Aaron Tomlin atom...@redhat.com
---
arch/powerpc/mm/fault.c| 4 +---
arch/x86/mm/fault.c| 4 +---
include/linux/sched.h | 2 ++
kernel/trace/trace_stack.c | 2
Hi,
Subject: [PATCH V1] ASoC: fsl_ssi: refine ipg clock usage in this module
Move the ipg clock enable and disable operation to startup and shutdown,
that is only enable ipg clock when ssi is working. we don't need to enable
ipg clock in probe.
Another register accessing need the ipg
On 09/08/2014 10:56 PM, James Bottomley wrote:
On Mon, 2014-09-08 at 19:30 -0400, Peter Hurley wrote:
On 09/08/2014 01:50 AM, James Bottomley wrote:
But additionally, even if gcc combines adjacent writes _that are part
of the program flow_ then I believe the situation is no worse than
would
On Fri, 2014-09-05 at 06:47 AM, Wood Scott wrote:
Subject: Re: [PATCH v2] QE: move qe code from arch/powerpc to drivers/soc
On Thu, 2014-09-04 at 13:06 +0800, Zhao Qiang wrote:
LS1 is arm cpu and it has qe ip block.
move qe code from platform directory to public directory.
QE is an
On 09/08/2014 06:47 PM, Peter Hurley wrote:
On 09/08/2014 01:59 PM, H. Peter Anvin wrote:
On 09/08/2014 10:52 AM, One Thousand Gnomes wrote:
On Fri, 05 Sep 2014 08:41:52 -0700
H. Peter Anvin h...@zytor.com wrote:
On 09/05/2014 08:31 AM, Peter Hurley wrote:
Which is a bit ironic because I
On 09/08/2014 03:17 PM, One Thousand Gnomes wrote:
I think the whole removing Alpha EV5 support is basically bonkers. Just
use set_bit in the tty layer. Alpha will continue to work as well as it
always has done and you won't design out support for any future processor
that turns out not to do
rtas_call() accepts and returns values in CPU endianness.
of_read_number() accepts big-endian values but create.addr_hi/lo returned
by rtas_call() are in CPU endiannes.
The dynamic_dma_window_prop struct defines all members as BE so let's
make it true.
struct dynamic_dma_window_prop {
On Tue, Sep 09, 2014 at 05:18:07PM +0800, Shengjiu Wang wrote:
+ if (ssi_private-soc-imx)
+ clk_prepare_enable(ssi_private-clk);
+
We're ignoring the error code here.
- ssi_private-clk = devm_clk_get(pdev-dev, NULL);
+ ssi_private-clk = devm_clk_get(pdev-dev, ipg);
Hi,
On Tue, Sep 09, 2014 at 05:18:07PM +0800, Shengjiu Wang wrote:
Move the ipg clock enable and disable operation to startup and shutdown,
that is only enable ipg clock when ssi is working. we don't need to enable
ipg clock in probe.
Another register accessing need the ipg clock, so use
Shengjiu Wang wrote:
+ if (ssi_private-soc-imx)
+ clk_prepare_enable(ssi_private-clk);
How about this instead?
if (ssi_private-clk)
clk_prepare_enable(ssi_private-clk);
___
Linuxppc-dev mailing list
On Tue, Sep 9, 2014 at 3:01 PM, Simon Kågström
simon.kagst...@netinsight.net wrote:
A 5 second timeout during boot might be too long, so make it
configurable.
The property is added to the chosen node, e.g.,
chosen {
bootargs = console=ttyUL0 root=/dev/ram0;
A 5 second timeout during boot might be too long, so make it
configurable.
The property is added to the chosen node, e.g.,
chosen {
bootargs = console=ttyUL0 root=/dev/ram0;
linux,stdout-path = /plb@0/serial@4600;
cmdline-timeout = 100;
A 5 second timeout during boot might be too long, so make it
configurable. Run the loop at least once to let the user stop the boot
by holding a key pressed.
The property is added to the chosen node, e.g.,
chosen {
bootargs = console=ttyUL0 root=/dev/ram0;
On Tue, Sep 09, 2014 at 08:17:51AM -0500, Timur Tabi wrote:
Shengjiu Wang wrote:
+if (ssi_private-soc-imx)
+clk_prepare_enable(ssi_private-clk);
How about this instead?
if (ssi_private-clk)
clk_prepare_enable(ssi_private-clk);
Should be a !IS_ERR() - NULL is a valid
On 09/09/2014 10:21 AM, Mark Brown wrote:
if (ssi_private-clk)
clk_prepare_enable(ssi_private-clk);
Should be a !IS_ERR() - NULL is a valid clock.
In that case, ssi_private-clk needs to be initialized to -EINVAL or
something, so that the check works on systems that don't have any
On Mon, Sep 08, 2014 at 11:19:18AM +0200, Philipp Zabel wrote:
Currently there is a wild mixture of isl, isil, and intersil
compatibles in the kernel. At this point, changing the vendor
symbol to the most often used variant, which is equal to the
NASDAQ symbol, isil, should not hurt.
This patch adds kernel side support for software breakpoint.
Design is that, by using an illegal instruction, we trap to hypervisor
via Emulation Assistance interrupt, where we check for the illegal instruction
and accordingly we return to Host or Guest. Patch also adds support for
software
This patchset adds ppc64 server side support for software breakpoint
and extends the use of illegal instruction as software
breakpoint across ppc platform.
Patch 1, adds kernel side support for software breakpoint.
Design is that, by using an illegal instruction, we trap to
hypervisor via
This patch extends the use of illegal instruction as software
breakpoint instruction across the ppc platform. Patch extends
booke program interrupt code to support software breakpoint.
Signed-off-by: Madhavan Srinivasan ma...@linux.vnet.ibm.com
---
Patch is only compile tested. Will really help
On Tue, Sep 09, 2014 at 12:27:50PM +0100, Mark Brown wrote:
On Tue, Sep 09, 2014 at 05:18:07PM +0800, Shengjiu Wang wrote:
- ssi_private-clk = devm_clk_get(pdev-dev, NULL);
+ ssi_private-clk = devm_clk_get(pdev-dev, ipg);
if (IS_ERR(ssi_private-clk)) {
ret =
On Tue, Sep 09, 2014 at 11:03:10AM -0700, Nicolin Chen wrote:
On Tue, Sep 09, 2014 at 12:27:50PM +0100, Mark Brown wrote:
On Tue, Sep 09, 2014 at 05:18:07PM +0800, Shengjiu Wang wrote:
- ssi_private-clk = devm_clk_get(pdev-dev, NULL);
+ ssi_private-clk = devm_clk_get(pdev-dev, ipg);
On Tue, Sep 09, 2014 at 07:15:16PM +0100, Mark Brown wrote:
On Tue, Sep 09, 2014 at 11:03:10AM -0700, Nicolin Chen wrote:
On Tue, Sep 09, 2014 at 12:27:50PM +0100, Mark Brown wrote:
On Tue, Sep 09, 2014 at 05:18:07PM +0800, Shengjiu Wang wrote:
- ssi_private-clk =
Anton noticed (http://www.spinics.net/lists/linux-mm/msg67489.html) that
on ppc LPARs with memoryless nodes, a large amount of memory was
consumed by slabs and was marked unreclaimable. He tracked it down to
slab deactivations in the SLUB core when we allocate remotely, leading
to poor efficiency
From: Joonsoo Kim iamjoonsoo@lge.com
We need to determine the fallback node in slub allocator if the
allocation target node is memoryless node. Without it, the SLUB wrongly
select the node which has no memory and can't use a partial slab,
because of node mismatch. Introduced function,
From: Joonsoo Kim iamjoonsoo@lge.com
Update the SLUB code to search for partial slabs on the nearest node
with memory in the presence of memoryless nodes. Additionally, do not
consider it to be an ALLOC_NODE_MISMATCH (and deactivate the slab) when
a memoryless-node specified allocation goes
After discussions with Tejun, we don't want to spread the use of
cpu_to_mem() (and thus knowledge of allocators/NUMA topology details)
into callers, but would rather ensure the callees correctly handle
memoryless nodes. With the previous patches (topology: add support for
node_to_mem_node() to
On 09/09/2014 01:38 PM, Nicolin Chen wrote:
make sure to have the call for imx only because it seems that
the other platforms do not depend on the clock.
Although I doubt anyone will every add support for clocks to PowerPC
side of this driver, I would prefer to avoid IMX-specific changes.
On Tue, Sep 09, 2014 at 02:37:42PM -0500, Timur Tabi wrote:
On 09/09/2014 01:38 PM, Nicolin Chen wrote:
make sure to have the call for imx only because it seems that
the other platforms do not depend on the clock.
Although I doubt anyone will every add support for clocks to PowerPC side
of
On 09/09/2014 02:59 PM, Nicolin Chen wrote:
+ /*
+* Initially mark the clock to NULL for all platforms so that later
+* clk_prepare_enable() will ignore and return 0 for non-clock cases.
+*/
+ ssi_private-clk = NULL;
According to Mark, NULL is a valid clock,
We have hit a few customer issues with the topology update code (VPHN
and PRRN). It would be nice to be able to debug the notifications coming
from the hypervisor in both cases to the LPAR, as well as to disable
reacting to the notifications, to narrow down the source of the
problems. Add a basic
On Wed, Aug 20, 2014 at 12:14 AM, Wei Yang weiy...@linux.vnet.ibm.com wrote:
On Tue, Aug 19, 2014 at 09:08:41PM -0600, Bjorn Helgaas wrote:
On Thu, Jul 24, 2014 at 02:22:14PM +0800, Wei Yang wrote:
At resource sizing/assigning stage, resources are divided into two lists,
requested list and
On Tue, Sep 09, 2014 at 03:03:53PM -0500, Timur Tabi wrote:
On 09/09/2014 02:59 PM, Nicolin Chen wrote:
+/*
+ * Initially mark the clock to NULL for all platforms so that later
+ * clk_prepare_enable() will ignore and return 0 for non-clock cases.
+ */
+ssi_private-clk =
On 09/09/2014 03:27 PM, Nicolin Chen wrote:
I guess Mark's comment is merely against the check for clk validation
because if talking about clk validation, we should check IS_ERR(clk)
rather than check !=NULL directly.
Ah, that makes sense now.
However, my approach doesn't need any check. The
On 09.09.14 19:07, Madhavan Srinivasan wrote:
This patch adds kernel side support for software breakpoint.
Design is that, by using an illegal instruction, we trap to hypervisor
via Emulation Assistance interrupt, where we check for the illegal instruction
and accordingly we return to Host
On 09.09.14 19:07, Madhavan Srinivasan wrote:
This patchset adds ppc64 server side support for software breakpoint
and extends the use of illegal instruction as software
breakpoint across ppc platform.
Patch 1, adds kernel side support for software breakpoint.
Design is that, by using an
On Tue, Sep 09, 2014 at 03:37:26PM -0500, Timur Tabi wrote:
However, my approach doesn't need any check. The open() or pm_resume()
can just call clk_prepare_enable() directly. The __clk_enable() will
then handle the 'clk == NULL' case:
Yes, I was thinking the same thing.
Because that's
On Tue, 9 Sep 2014 12:03:27 -0700 Nishanth Aravamudan n...@linux.vnet.ibm.com
wrote:
From: Joonsoo Kim iamjoonsoo@lge.com
We need to determine the fallback node in slub allocator if the
allocation target node is memoryless node. Without it, the SLUB wrongly
select the node which has no
On Tue, 9 Sep 2014 12:05:14 -0700 Nishanth Aravamudan n...@linux.vnet.ibm.com
wrote:
From: Joonsoo Kim iamjoonsoo@lge.com
Update the SLUB code to search for partial slabs on the nearest node
with memory in the presence of memoryless nodes. Additionally, do not
consider it to be an
On 09.09.2014 [17:11:15 -0700], Andrew Morton wrote:
On Tue, 9 Sep 2014 12:03:27 -0700 Nishanth Aravamudan
n...@linux.vnet.ibm.com wrote:
From: Joonsoo Kim iamjoonsoo@lge.com
We need to determine the fallback node in slub allocator if the
allocation target node is memoryless
On 09.09.2014 [17:11:25 -0700], Andrew Morton wrote:
On Tue, 9 Sep 2014 12:05:14 -0700 Nishanth Aravamudan
n...@linux.vnet.ibm.com wrote:
From: Joonsoo Kim iamjoonsoo@lge.com
Update the SLUB code to search for partial slabs on the nearest node
with memory in the presence of
On Tue, 2014-09-09 at 04:27 -0500, Zhao Qiang-B45475 wrote:
On Fri, 2014-09-05 at 06:47 AM, Wood Scott wrote:
Subject: Re: [PATCH v2] QE: move qe code from arch/powerpc to drivers/soc
On Thu, 2014-09-04 at 13:06 +0800, Zhao Qiang wrote:
LS1 is arm cpu and it has qe ip block.
Hi, Ben
Sounds this is not merged in the mainline yet.
Would you like me sending a new version with those fix? Or you don't like
this?
On Wed, Aug 20, 2014 at 12:07:35PM +1000, Gavin Shan wrote:
On Tue, Aug 19, 2014 at 10:27:09AM +0800, Wei Yang wrote:
The subject would be powerpc/eeh: Fix
On Tue, Sep 09, 2014 at 02:09:46PM -0600, Bjorn Helgaas wrote:
On Wed, Aug 20, 2014 at 12:14 AM, Wei Yang weiy...@linux.vnet.ibm.com wrote:
On Tue, Aug 19, 2014 at 09:08:41PM -0600, Bjorn Helgaas wrote:
On Thu, Jul 24, 2014 at 02:22:14PM +0800, Wei Yang wrote:
At resource sizing/assigning stage,
On Wed, 2014-09-10 at 07:27 -0500, Wood Scott-B07421 wrote:
-Original Message-
From: Wood Scott-B07421
Sent: Wednesday, September 10, 2014 7:27 AM
To: Zhao Qiang-B45475
Cc: Li Yang-Leo-R58472; linuxppc-dev@lists.ozlabs.org; Xie Xiaobo-R63061;
linux-ker...@vger.kernel.org
Subject:
On Tue, 2014-09-09 at 23:45 -0500, Badola Nikhil-B46172 wrote:
-Original Message-
From: Wood Scott-B07421
Sent: Friday, August 22, 2014 4:07 AM
To: Badola Nikhil-B46172
Cc: linuxppc-dev@lists.ozlabs.org; devicet...@vger.kernel.org
Subject: Re: [PATCH] powerpc: dts: t208x: Change
-Original Message-
From: Wood Scott-B07421
Sent: Friday, August 22, 2014 4:07 AM
To: Badola Nikhil-B46172
Cc: linuxppc-dev@lists.ozlabs.org; devicet...@vger.kernel.org
Subject: Re: [PATCH] powerpc: dts: t208x: Change T208x USB controller version
On Thu, 2014-08-21 at 16:01 +0530, Nikhil
The patch implements the OPAL rtc driver that binds with the rtc
driver subsystem. The driver uses the platform device infrastructure
to probe the rtc device and register it to rtc class framework. The
'wakeup' is supported depending upon the property 'has-tpo' present
in the OF node. It provides
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