On 04/15/2015 06:42 PM, Jacek Anaszewski wrote:
> On 04/15/2015 12:15 PM, Vasant Hegde wrote:
>> On 04/15/2015 02:12 PM, Jacek Anaszewski wrote:
>>> Hi Vasant,
Hi Jacek,
.../...
>
I mean, we have to retain the state of LED across system reboot.
>>>
>>> Static variables are reinitia
On Fri, Apr 10, 2015 at 04:31:02PM +1000, Alexey Kardashevskiy wrote:
> This is a part of moving DMA window programming to an iommu_ops
> callback.
>
> This is a mechanical patch.
>
> Signed-off-by: Alexey Kardashevskiy
Reviewed-by: David Gibson
--
David Gibson| I'll have
On Fri, Apr 10, 2015 at 04:31:03PM +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.
Yeah, as I c
On Fri, Apr 10, 2015 at 04:31:01PM +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 enforce window size to be a power of two.
>
> This is a pretty mechanical patch.
??
On Fri, Apr 10, 2015 at 04:30:59PM +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 t
On Fri, Apr 10, 2015 at 04:31:00PM +1000, Alexey Kardashevskiy wrote:
> This moves iommu_table creation to the beginning. This is a mechanical
> patch.
>
> Signed-off-by: Alexey Kardashevskiy
> ---
> arch/powerpc/platforms/powernv/pci-ioda.c | 34
> ---
> 1 file chan
On Fri, Apr 10, 2015 at 04:30:58PM +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. This approach makes it possible
> to ge
Regards,
Igal Liberman.
> -Original Message-
> From: Wood Scott-B07421
> Sent: Wednesday, April 15, 2015 8:15 PM
> To: Liberman Igal-B31950
> Cc: devicet...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org
> Subject: Re: [PATCH] powerpc/dts: Update the core cluster PLL node(s)
>
> On Wed,
Regards,
Igal Liberman.
> -Original Message-
> From: Wood Scott-B07421
> Sent: Wednesday, April 15, 2015 8:36 PM
> To: Liberman Igal-B31950
> Cc: devicet...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org
> Subject: Re: [v3] dt/bindings: qoriq-clock: Add binding for FMan clock mux
>
> On
On Fri, Apr 10, 2015 at 04:30:56PM +1000, Alexey Kardashevskiy wrote:
> At the moment the iommu_table struct has a set_bypass() which enables/
> disables DMA bypass on IODA2 PHB. This is exposed to POWERPC IOMMU code
> which calls this callback when external IOMMU users such as VFIO are
> about to
On Fri, Apr 10, 2015 at 04:30:57PM +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
>
On Fri, Apr 10, 2015 at 04:30:55PM +1000, Alexey Kardashevskiy wrote:
> This replaces iommu_take_ownership()/iommu_release_ownership() calls
> with the callback calls and it is up to the platform code to call
> iommu_take_ownership()/iommu_release_ownership() if needed.
I think this commit message
On Fri, Apr 10, 2015 at 04:30:54PM +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.
>
> Signed-off-by: Alexey K
On Fri, Apr 10, 2015 at 04:30:53PM +1000, Alexey Kardashevskiy wrote:
> This replaces multiple calls of kzalloc_node() with a new
> iommu_table_alloc() helper. Right now it calls kzalloc_node() but
> later it will be modified to allocate a iommu_table_group struct with
> a single iommu_table in it.
On 04/16/2015 12:20 AM, Stewart Smith wrote:
> Jacek Anaszewski writes:
>>> +static struct platform_driver powernv_led_driver = {
>>> + .probe = powernv_led_probe,
>>> + .remove = powernv_led_remove,
>>> + .driver = {
>>> + .name = "powernv-led-driver",
>>> + .owner = TH
On 04/09/2015 06:31 PM, Scott Wood wrote:
On Thu, 2015-04-09 at 16:52 -0500, Pan Lijun-B44306 wrote:
Hi Maintainers,
We have a proposal for writing the defconfigs for freescale's powperpc
platforms in a new way.
Can you take a look and provide some feedback?
You know currently we have mpc85xx
__flush_dcache_icache_phys() requires the ability to access the
memory with the MMU disabled, which means that on a 32-bit system
any memory above 4 GiB is inaccessible. In particular, mpc86xx is
32-bit and can have more than 4 GiB of RAM.
Signed-off-by: Scott Wood
---
arch/powerpc/include/asm/
This is a fix to a 4.0 regression that causes hugetlb use on PPC
to emit kernel output such as "BUG: non-zero nr_pmds on freeing
mm: 1"
The following changes since commit 39a8804455fb23f09157341d3ba7db6d7ae6ee76:
Linux 4.0 (2015-04-12 15:12:50 -0700)
are available in the git repository at:
> My suggestion to resolve the technical objections and lift the NAK
> would be:
>
> - to add the tables to the source code, in a more human readable
>format and (optionally) structure the event names better into a
>higher level hierarchy, than the humungous linear dumps with no
>
Jacek Anaszewski writes:
>> +static struct platform_driver powernv_led_driver = {
>> +.probe = powernv_led_probe,
>> +.remove = powernv_led_remove,
>> +.driver = {
>> +.name = "powernv-led-driver",
>> +.owner = THIS_MODULE,
>> +.of_match_table = pow
On Tue, 2015-04-14 at 13:56 +0300, Igal.Liberman wrote:
> From: Igal Liberman
>
> v3: Addressed feedback from Scott:
> - Removed clock specifier description.
>
> v2: Addressed feedback from Scott:
> - Moved the "fman-clk-mux" clock provider details
> under "clocks" property.
On Wed, 2015-04-15 at 03:43 -0500, Liberman Igal-B31950 wrote:
>
>
> Regards,
> Igal Liberman.
>
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Tuesday, April 14, 2015 11:09 PM
> > To: Liberman Igal-B31950
> > Cc: devicet...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org
>
On Wed, 2015-04-15 at 06:07 -0500, Liberman Igal-B31950 wrote:
>
>
> Regards,
> Igal Liberman.
>
> > -Original Message-
> > From: Wood Scott-B07421
> > Sent: Tuesday, April 14, 2015 11:23 PM
> > To: Liberman Igal-B31950
> > Cc: devicet...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org
>
Hi Laurentiu,
Thanks for your comments. Reply inline.
Regards
Sandeep
> -Original Message-
> From: Linuxppc-dev [mailto:linuxppc-dev-
> bounces+sandeep=freescale@lists.ozlabs.org] On Behalf Of Laurentiu Tudor
> Sent: Thursday, April 02, 2015 5:26 PM
> To: linuxppc-dev@lists.ozlabs.or
Some processes (CRIU) are moving the vDSO area using the mremap system
call. As a consequence the kernel reference to the vDSO base address is
no more valid and the signal return frame built once the vDSO has been
moved is not pointing to the new sigreturn address.
This patch handles vDSO remappin
Some architecture would like to be triggered when a memory area is moved
through the mremap system call.
This patch is introducing a new arch_remap mm hook which is placed in the
path of mremap, and is called before the old area is unmapped (and the
arch_unmap hook is called).
Signed-off-by: Laur
CRIU is recreating the process memory layout by remapping the checkpointee
memory area on top of the current process (criu). This includes remapping
the vDSO to the place it has at checkpoint time.
However some architectures like powerpc are keeping a reference to the vDSO
base address to build th
This patch introduces a new set of header file to manage mm hooks:
- per architecture empty header file (arch/x/include/asm/mm-arch-hooks.h)
- a generic header (include/linux/mm-arch-hooks.h)
The architecture which need to overwrite a hook as to redefine it in its
header file, while architecture w
On 04/15/2015 11:54 AM, Shreyas B. Prabhu wrote:
> +/*
> + * Used to store fastsleep workaround state
> + * 0 - Workaround applied/undone at fastsleep entry/exit path (Default)
> + * 1 - Workaround applied once, never undone.
> + */
> +static u8 fastsleep_workaround_state;
> +
> +static const char
On 04/15/2015 05:10 PM, David Gibson wrote:
On Fri, Apr 10, 2015 at 04:30:49PM +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 appli
On 14/04/2015 21:38, Andrew Morton wrote:
> On Tue, 14 Apr 2015 11:26:13 +0200 Laurent Dufour
> wrote:
>
>>> Do away with __HAVE_ARCH_REMAP and do it like this:
>>>
>>> arch/x/include/asm/y.h:
>>>
>>> extern void arch_remap(...);
>>> #define arch_remap arch_remap
>>>
>>> include/linux/z.
Regards,
Igal Liberman.
> -Original Message-
> From: Wood Scott-B07421
> Sent: Tuesday, April 14, 2015 11:23 PM
> To: Liberman Igal-B31950
> Cc: devicet...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org
> Subject: Re: [PATCH] powerpc/dts: Update the core cluster PLL node(s)
>
> On Tue,
Regards,
Igal Liberman.
> -Original Message-
> From: Wood Scott-B07421
> Sent: Tuesday, April 14, 2015 11:09 PM
> To: Liberman Igal-B31950
> Cc: devicet...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org
> Subject: Re: [v2] powerpc/dts: Add some SoC specific "fsl,*-device-config"
> compat
On 04/15/2015 02:12 PM, Jacek Anaszewski wrote:
> Hi Vasant,
>
> On 04/15/2015 08:26 AM, Vasant Hegde wrote:
>> On 04/14/2015 08:50 PM, Jacek Anaszewski wrote:
>>> Hi Vasant,
>>
>> Hi Jacek,
>>
This patch implements LED driver for PowerNV platform using the existing
generic LED clas
* Michael Ellerman wrote:
> > We just merged a patch series that was first sent in 2013. Some
> > things take time to get right.
>
> The first attempt to get symbolic event name support into perf was
> sent in 2010, that's FIVE years ago [1].
kgdb took even longer, I think it was first propo
Regards,
Igal Liberman.
> -Original Message-
> From: Wood Scott-B07421
> Sent: Tuesday, April 14, 2015 11:09 PM
> To: Liberman Igal-B31950
> Cc: devicet...@vger.kernel.org; linuxppc-dev@lists.ozlabs.org
> Subject: Re: [v2] dt/bindings: fsl/guts: Added global-utilities compatibles
>
> On
This is Thermal Monitoring Unit for QorIQ platform.
Signed-off-by: Jia Hongtao
---
Changes from V1:
* Provide more details on compatible and calibration properties.
.../devicetree/bindings/thermal/qoriq-thermal.txt | 68 ++
arch/powerpc/boot/dts/fsl/qoriq-tmu-t104xsi.dtsi | 8
On Fri, Apr 10, 2015 at 04:30:52PM +1000, Alexey Kardashevskiy wrote:
> This adds a iommu_table_ops struct and puts pointer to it into
> the iommu_table struct. This moves tce_build/tce_free/tce_get/tce_flush
> callbacks from ppc_md to the new struct where they really belong to.
>
> This adds the
On Fri, Apr 10, 2015 at 04:30:49PM +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 u
On Fri, Apr 10, 2015 at 04:30:50PM +1000, Alexey Kardashevskiy wrote:
> This is to make extended ownership and multiple groups support patches
> simpler for review.
>
> This is a mechanical patch.
I think you're pushing the meaning of that term. Moving whole slabs
of code by copy/paste I'd call
On Fri, Apr 10, 2015 at 04:30:51PM +1000, Alexey Kardashevskiy wrote:
> Normally a bitmap from the iommu_table is used to track what TCE entry
> is in use. Since we are going to use iommu_table without its locks and
> do xchg() instead, it becomes essential not to put bits which are not
> implied i
On Fri, Apr 10, 2015 at 04:30:48PM +1000, Alexey Kardashevskiy wrote:
> At the moment DMA map/unmap requests are handled irrespective to
> the container's state. This allows the user space to pin memory which
> it might not be allowed to pin.
>
> This adds checks to MAP/UNMAP that the container is
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