: Nathan Fontenot
---
arch/powerpc/mm/mem.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: powerpc/arch/powerpc/mm/mem.c
===
--- powerpc.orig/arch/powerpc/mm/mem.c
+++ powerpc/arch/powerpc/mm/mem.c
@@ -514,7 +514,7
needed for building
with SPARSE_VMEMMAP enabled.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/mm/init_64.c |6 ++
arch/powerpc/mm/mem.c |9 +
mm/Kconfig|2 +-
3 files changed, 16 insertions(+), 1 deletion(-)
Index: powerpc/arch/powerpc/mm/init_64.c
On 08/11/2013 07:19 PM, Benjamin Herrenschmidt wrote:
> On Fri, 2013-08-09 at 10:32 -0500, Nathan Fontenot wrote:
>
>> +void register_page_bootmem_memmap(unsigned long section_nr,
>> + struct page *start_page, unsigned long size)
>> +{
>&g
On 08/12/2013 04:13 PM, Benjamin Herrenschmidt wrote:
> On Mon, 2013-08-12 at 08:01 -0500, Nathan Fontenot wrote:
>>> Can you tell me a bit more, the above makes me nervous...
>>
>> Ok, I agree. that message isn't quite right.
>>
>> What I wanted to c
; the device node being updated is corrupted and becomes a loop since the same
> property structure is used repeatedly.
>
> Signed-off-by: Tyrel Datwyler
Acked-by: Nathan Fontenot
> ---
> arch/powerpc/platforms/pseries/mobility.c | 2 +-
> 1 file changed, 1 insertion(+), 1
ever, the rc variable is overwritten by a call to update_dt_prop
> which returns 0 on success. This results in ibm,update-properties not being
> called again for the given node when the rtas call rc was previously 1.
>
> Signed-off-by: Tyrel Datwyler
Acked-by: Nathan Fontenot
> --
buffer.
>
> Signed-off-by: Tyrel Datwyler
Acked-by: Nathan Fontenot
> ---
> arch/powerpc/platforms/pseries/mobility.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/platforms/pseries/mobility.c
> b/arch/powerpc/platforms/pseries/
sts of
> the property name, property value length, and property value. The property
> name is an empty string, property length is encoded in 4 byte integer, and
> the property value is the node path.
>
> Signed-off-by: Tyrel Datwyler
Acked-by: Nathan Fontenot
> ---
> arch
-by: Tyrel Datwyler
Acked-by: Nathan Fontenot
> ---
> arch/powerpc/platforms/pseries/dlpar.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/platforms/pseries/dlpar.c
> b/arch/powerpc/platforms/pseries/dlpar.c
> index a1a7b9
ll
> only contains the node name and not the entire node path. Passing the parent
> node where the new subtree will be created to dlpar_configure_connector allows
> the correct node path to be prefixed in the full_name field.
>
> Signed-off-by: Tyrel Datwyler
Acked-by: Nathan Fontenot
;
> Signed-off-by: Tyrel Datwyler
Acked-by: Nathan Fontenot
> ---
> arch/powerpc/platforms/pseries/mobility.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/platforms/pseries/mobility.c
> b/arch/powerpc/platforms/pseries/mobility.c
> index ff102
gt; the node will be freed from memory by of_node_release.
>
> Signed-off-by: Tyrel Datwyler
Acked-by: Nathan Fontenot
> ---
> arch/powerpc/platforms/pseries/dlpar.c | 7 +++
> 1 file changed, 7 insertions(+)
>
> diff --git a/arch/powerpc/platforms/pseries/dlpar.c
&
nabled on powerpc.
>
> This patch removes the cpu_hotplug_driver_lock() interface. As
> a result, ARCH_CPU_PROBE_RELEASE only enables / disables the cpu
> probe & release interface as intended. There is no functional change
> in this patch.
>
> Signed-off-by: Toshi Kani
implementation on Power.
Nathan Fontenot
Updates for v2:
- The WARN_ONCE is removed from the added register_page_bootmem_memmap()
routine. I have been able to verify that memory hotplug works with
SPARSE_VMEMMAP enabled and do not think the warning is needed.
---
arch/powerpc/mm/mem.c |9
Memory I/O resources need to be marked as busy or else we cannot remove
them when doing memory hot remove.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/mm/mem.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: linux/arch/powerpc/mm/mem.c
BUG_ON for memory
hot remove in put_page_bootmem().
This also adds a stub for register_page_bootmem_memmap to allow ppc to build
with sparse vmemmap defined.
Signed-off-by: Nathan Fontenot
---
---
arch/powerpc/mm/init_64.c |4
arch/powerpc/mm/mem.c |9 +
mm/Kconfig
-off-by: Nathan Fontenot
---
arch/powerpc/mm/init_64.c |4
arch/powerpc/mm/mem.c |9 +
mm/Kconfig|2 +-
3 files changed, 14 insertions(+), 1 deletion(-)
Index: powerpc/arch/powerpc/mm/init_64.c
On 10/21/2013 07:44 PM, Anton Blanchard wrote:
>
> Run savedefconfig over the ppc64, ppc64e and pseries config
>
> Signed-off-by: Anton Blanchard
> ---
>
> Index: b/arch/powerpc/configs/ppc64_defconfig
> ===
> --- a/arch/powerpc/co
at a time which gives us a memory resource
for each section. Future patches will aim to address this so will not have
to remove memory one section at a time.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/include/asm/machdep.h |4 +
arch/powerpc/mm/mem.c
On 01/22/2014 01:58 PM, Tyrel Datwyler wrote:
> From: Haren Myneni
>
> From: Haren Myneni
>
> pHyp can change cache nodes for suspend/resume operation. The current code
> updates the device tree after all non boot CPUs are enabled. Hence, we do not
> modify the cache list based on the latest ca
oc entry exists error is reported for the second update while
> adding device nodes.
>
> This patch makes a single rtas call for update-nodes after activating the FW.
> It also add rtas_busy delay for the activate-firmware rtas call.
>
> Signed-off-by: Haren Myneni
> Signed
rmgr is responsible.
>
> Signed-off-by: Tyrel Datwyler
Acked-by: Nathan Fontenot
> ---
> arch/powerpc/platforms/pseries/suspend.c | 25 -
> 1 file changed, 24 insertions(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/platforms/pseries/suspend.c
>
adds a routine to convert an address to a physical
address by checking for vmalloc addresses and handling them properly.
Signed-off-by: Nathan Fontenot
---
drivers/crypto/nx/nx-842.c | 29 +++--
1 file changed, 19 insertions(+), 10 deletions(-)
Index: linux/drivers
Greg,
There is one more place that needs fixing up, in mobility_rtas_call(),
and handle_rtas_event() in arch/powerpc/platforms/pseries/mobility.c.
This relates to rtas event handling for PRRN notifications, we need to
convert the scope variable (PRRN notifications re-use the extended log
length f
This is the patch that I worked up at the same time as Greg, the
biggest difference being that I took the approach of doing and's,
and shifting as opposed to re-defining the bit fields for LE.
One other difference is that I left out defines for bits in the
error log structures that we currently do
w patch is largely inspired by Nathan's work: we get rid of all
> the bit fields in the RTAS event structures (even the unused ones, for
> consistency). We also introduce endian safe accessors for the fields used
> by the kernel (trivial rtas_error_type() accessor added for consis
On 04/09/2014 03:54 AM, Li Zhong wrote:
> While testing memory hot-remove, I found following dead lock:
>
> Process #1141 is drmgr, trying to remove some memory, i.e. memory499.
> It holds the memory_hotplug_mutex, and blocks when trying to remove file
> "online" under dir memory499, in kernfs_dr
In order to support device hotplug (cpu, memory, and pci) in both the
PowerVM and the PowerKVM environments the handling of hotplug events
will need to be updated. This patch set adresses this by creating a
common entry point for handling hotplug events in the kernel that
can be used in both PowerV
In order to support hotplug of memory, cpu and pci devices in the PowerVM
and the PowerKVM environments we will need to provide a single entry
point. To do this requires updating the way in which we handle hotplug
requests in the PowerVM environment. The idea is to have all of the hotplug
in the ke
This patch moves the cpu hotplug handling code from pseries/dlpar.c
to pseries/hotplug-cpu.c. Additionally it factors out the work to
add/remove a single cpu into its own routine.
---
arch/powerpc/platforms/pseries/dlpar.c | 182 -
arch/powerpc/platforms/pseries/hotp
This patch updates the cpu hotplug handling code so that we can perform
cpu hotplug using the new rtas hotplug event interface while still
maintaining the ability to use the probe/release sysfs interface
for adding and removing cpus.
At a later point we could deprecate the use of the probe/release
This patch hooks into the ras EPOW interrupt handler so that we can
communicate hotplug rtas events to a PowerKVM guest from qemu.
The ras epow interrupt wil lnow check for hotplgu rtas events and
invoke the common handling routine accordingly.
---
arch/powerpc/include/asm/rtas.h | 1 +
On 06/18/2014 03:07 PM, Grant Likely wrote:
> Hi Nathan and Tyrel,
>
> I'm looking into lifecycle issues on nodes modified by OF_DYNAMIC, and
> I'm hoping you can help me. Right now, pseries seems to be the only
> user of OF_DYNAMIC, but making OF_DYNAMIC work has a huge impact on
> the entire ker
On 06/23/2014 09:58 AM, Grant Likely wrote:
> On Thu, 19 Jun 2014 11:33:20 +0300, Pantelis Antoniou
> wrote:
>> Hi Grant,
>>
>> CCing Thomas Gleixner & Steven Rostedt, since they might have a few
>> ideas...
>>
>> On Jun 18, 2014, at 11:07 PM, Grant Likely wrote:
>>
>>> Hi Nathan and Tyrel,
>>>
>
On 06/23/2014 09:48 AM, Grant Likely wrote:
> On Thu, 19 Jun 2014 10:26:15 -0500, Nathan Fontenot
> wrote:
>> On 06/18/2014 03:07 PM, Grant Likely wrote:
>>> Hi Nathan and Tyrel,
>>>
>>> I'm looking into lifecycle issues on nodes modified by OF_DYNAMI
On 06/25/2014 03:22 PM, Grant Likely wrote:
> On Tue, 24 Jun 2014 15:07:05 -0500, Nathan Fontenot
> wrote:
>> On 06/23/2014 09:58 AM, Grant Likely wrote:
>>> On Thu, 19 Jun 2014 11:33:20 +0300, Pantelis Antoniou
>>> wrote:
>>>> Hi Grant,
>>>&
On 06/25/2014 03:24 PM, Grant Likely wrote:
> On Tue, 24 Jun 2014 15:10:55 -0500, Nathan Fontenot
> wrote:
>> On 06/23/2014 09:48 AM, Grant Likely wrote:
>>> On Thu, 19 Jun 2014 10:26:15 -0500, Nathan Fontenot
>>> wrote:
>>>> On 06/18/2014 03:07 P
On 06/27/2014 07:40 AM, Pantelis Antoniou wrote:
> Hi Grant,
>
> On Jun 27, 2014, at 3:32 PM, Grant Likely wrote:
>
>> On Thu, 26 Jun 2014 14:59:31 -0500, Nathan Fontenot
>> wrote:
>>> On 06/25/2014 03:22 PM, Grant Likely wrote:
>>>> On Tue
On 06/27/2014 07:41 AM, Grant Likely wrote:
> On Thu, 26 Jun 2014 15:01:49 -0500, Nathan Fontenot
> wrote:
>> On 06/25/2014 03:24 PM, Grant Likely wrote:
>>> On Tue, 24 Jun 2014 15:10:55 -0500, Nathan Fontenot
>>> wrote:
>>>>>> heh! I have
On 07/09/2014 09:33 PM, Michael Ellerman wrote:
> On Wed, 2014-07-09 at 21:20 -0400, Tyrel Datwyler wrote:
>> Commit 75b57ecf9 refactored device tree nodes to use kobjects such that they
>> can be exposed via /sysfs. A secondary commit 0829f6d1f furthered this rework
>> by moving the kobect initial
ernel.org
> Signed-off-by: Tyrel Datwyler
Acked-by: Nathan Fontenot
> ---
> V2:
> - included stable kernel list on Cc per comment by mpe
>
> arch/powerpc/platforms/pseries/dlpar.c| 1 +
> arch/powerpc/platforms/pseries/reconfig.c | 1 +
> 2 files changed, 2 insertions(+
On 07/16/2014 05:26 PM, Grant Likely wrote:
> On Wed, Jul 16, 2014 at 2:57 PM, Grant Likely wrote:
>> On Wed, Jul 16, 2014 at 12:30 PM, Tyrel Datwyler
>> wrote:
>>> On 07/15/2014 10:33 PM, Grant Likely wrote:
I've got another question about powerpc reconfiguration. I was looking
at the
x27;t exceed the value for the largest memory
> configuration.
>
> Signed-off-by: Li Zhong
> Cc: Nathan Fontenot
Acked-by: Nathan Fontenot
> ---
> arch/powerpc/mm/init_64.c | 62
> +
> 1 file changed, 52 insertions(+), 10 deletio
On 06/11/2014 03:23 AM, Li Zhong wrote:
> This is to be called in vmemmap_free(), leave the implementation on BOOK3E
> empty as before.
>
> Signed-off-by: Li Zhong
> Cc: Nathan Fontenot
Acked-by: Nathan Fontenot
> ---
> arch/powerpc/mm/hash_utils_64.c |2 +-
> a
On 06/11/2014 03:23 AM, Li Zhong wrote:
> vmemmap_free() does the opposite of vmemap_populate().
> This patch also puts vmemmap_free() and vmemmap_list_free() into
> CONFIG_MEMMORY_HOTPLUG.
>
> Signed-off-by: Li Zhong
> Cc: Nathan Fontenot
Acked-by: Nathan Fontenot
> -
loop, adjust the start to be the start of the section, so we
> don't miss ranges like the above.
>
> After we adjust start to be the start of the section, it also means it's
> aligned with vmemmap as of the sizeof struct page, so we could use
> page_to_pfn directly in the
On 08/11/2014 04:16 AM, Gavin Shan wrote:
> While running command "drmgr -c phb -r -s 'PHB 528'", following
> backtrace jumped out because the target device node isn't marked
> with OF_DETACHED by of_detach_node(), which caused by error
> returned from memory hotplug related reconfig notifier when
On 08/25/2014 02:22 AM, Li Zhong wrote:
> With commit 2fabf084b, during boottime, cpu_numa_callback() is called
> earlier(before their online) for each cpu, and verify_cpu_node_mapping()
> uses cpu_to_node() to check whether siblings are in the same node.
>
> It skips the checking for siblings th
On 09/05/2014 04:16 AM, bharata@gmail.com wrote:
> From: Bharata B Rao
>
> - ibm,rtas-configure-connector should treat the RTAS data as big endian.
> - Treat ibm,ppc-interrupt-server#s as big-endian when setting
> smp_processor_id during hotplug.
>
> Signed-off-by: Bharata B Rao
> ---
>
It looks like you have a lot of the same changes as the patch Bharata
sent out last week. Including the one issue I saw in Bharata's patch
below.
On 09/05/2014 02:09 PM, Thomas Falcon wrote:
> This patch attempts to ensure that all values are in the proper
> endianness format when both hotadding a
In order to better support device hotplug (cpu, memory, and pci) in the
PowerVM and PowerKVM environments, the handling of device hotplug
could be updated so that the act of hotplugging a device occurs entirely
in the kernel. This patch set begins to address this by moving
memory hotplug to the ker
In order to handle device hotplug in the kernel on pseries the hotplug
notification will be communicated to the kernel in the form of a
rtas hotplug event. This patch adds the definition of rtas hotplug event
sections.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/include/asm/rtas.h | 26
Export the routines to acquire and release a drc index.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/platforms/pseries/pseries.h |2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/pseries.h
b/arch/powerpc/platforms/pseries/pseries.h
index 361add6
handling stub.
For PowerVM this patch also creates a new /proc file that the drmgr
command will use to write rtas hotplug events to.
For future PowerKVM handling the rtas check-exception code can pass
any rtas hotplug events received to handle_dlpar_errorlog().
Signed-off-by: Nathan Fontenot
all of the work to the kernel we can do the
add and remove faster, and provide a common place to do memory hotplug
for both the PowerVM and PowerKVM environments.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/platforms/pseries/hotplug-memory.c | 170 +++
1 file changed, 170
all of the work to the kernel we can do the
add and remove faster, and provide a common place to do memory hotplug
for both the PowerVM and PowerKVM environments.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/platforms/pseries/hotplug-memory.c | 140 +++
1 file changed, 139
On 08/19/2014 05:55 PM, Anton Blanchard wrote:
> Signed-off-by: Anton Blanchard
> ---
> arch/powerpc/kernel/hw_breakpoint.c | 2 +-
> arch/powerpc/kernel/nvram_64.c| 2 +-
> arch/powerpc/kernel/pci-common.c | 2 +-
> arch/powerpc/kernel/pci_of_scan.c | 2 +-
On 09/09/2014 03:09 PM, Nishanth Aravamudan wrote:
> 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 notificati
On 09/17/2014 02:06 AM, Michael Ellerman wrote:
>
> On Mon, 2014-09-15 at 15:29 -0500, Nathan Fontenot wrote:
>> diff --git a/arch/powerpc/include/asm/rtas.h
>> b/arch/powerpc/include/asm/rtas.h
>> index b390f55..a01879e 100644
>> --- a/arch/powerpc/include/as
On 09/17/2014 02:07 AM, Michael Ellerman wrote:
>
> On Mon, 2014-09-15 at 15:30 -0500, Nathan Fontenot wrote:
>> diff --git a/arch/powerpc/platforms/pseries/pseries.h
>> b/arch/powerpc/platforms/pseries/pseries.h
>> index 361add6..b94516b 100644
>> --- a/arch/power
On 09/17/2014 02:07 AM, Michael Ellerman wrote:
>
> On Mon, 2014-09-15 at 15:31 -0500, Nathan Fontenot wrote:
>> For pseries system the kernel will be notified of hotplug requests in
>> the form of rtas hotplug events.
>
> Can you flesh that design out a bit for me,
On 09/17/2014 02:07 AM, Michael Ellerman wrote:
>
> On Mon, 2014-09-15 at 15:32 -0500, Nathan Fontenot wrote:
>> This patch adds the ability to do memory hotplug adding in the kernel.
>>
>> Currently the hotplug add/remove of memory is handled by the drmgr
>> comma
On 09/17/2014 02:07 AM, Michael Ellerman wrote:
>
> On Mon, 2014-09-15 at 15:33 -0500, Nathan Fontenot wrote:
>> This patch adds the ability to do memory hotplug remove in the kernel.
>>
>> Currently the hotplug add/remove of memory is handled by the drmgr
>> comma
On 09/22/2014 08:15 PM, Tyrel Datwyler wrote:
> On 09/17/2014 12:15 PM, Nathan Fontenot wrote:
>> On 09/17/2014 02:07 AM, Michael Ellerman wrote:
>>>
>>> On Mon, 2014-09-15 at 15:31 -0500, Nathan Fontenot wrote:
>>>> For pseries system the kernel will be n
Rao
> Signed-off-by: Thomas Falcon
Acked-by: Nathan Fontenot
> ---
>
> Changes in v2:
> - Don't convert drc_index to BE in dlpar_configure_connector() but instead
> convert in the caller dlpar_cpu_probe() so that migration path isn't
> affected.
> - Mark
On 09/16/2014 03:15 PM, Thomas Falcon wrote:
> The ibm,ppc-interrupt-server#s property is in big endian format.
> These values need to be converted when used by little endian
> architectures.
>
> Signed-off-by: Thomas Falcon
Acked-by: Nathan Fontenot
> ---
> Changes
On 09/16/2014 03:15 PM, Thomas Falcon wrote:
> When removing a cpu, this patch makes sure that values
> gotten from or passed to firmware are in the correct
> endian format.
>
> Signed-off-by: Thomas Falcon
Acked-by: Nathan Fontenot
> ---
> Changes in v3:
>
> drc
On 09/17/2014 02:07 AM, Michael Ellerman wrote:
>
> On Mon, 2014-09-15 at 15:32 -0500, Nathan Fontenot wrote:
>> This patch adds the ability to do memory hotplug adding in the kernel.
>>
>> Currently the hotplug add/remove of memory is handled by the drmgr
>> comma
On 10/17/2014 06:19 PM, Dan Streetman wrote:
> Change maintainer of nx-842 compression coprocessor driver
> to Dan Streetman.
>
> Signed-off-by: Dan Streetman
> Cc: Nathan Fontenot
Acked-by: Nathan Fontenot
> ---
> MAINTAINERS | 2 +-
> 1 file changed, 1
rom cpu_probe|release_store.
>
> This patch fixes errors on PowerVM systems that have cpu(s) added/removed
> using dlpar operations; without this patch, the
> /sys/devices/system/cpu/cpuN/online nodes do not correctly show the
> online state of added/removed cpus.
>
> Signed-off-by:
On 03/01/2016 07:47 PM, Michael Ellerman wrote:
> On Wed, 2016-03-02 at 10:02 +1100, Michael Ellerman wrote:
>> On Wed, 2016-10-02 at 17:13:29 UTC, Nathan Fontenot wrote:
>>> Now that the DLPAR add/remove flow updates the ibm,dynamic-memory device
>>> tree property each
he file already has that.
>
> We delete the MODULE_LICENSE tag since that information is already
> contained at the top of the file in the comments.
>
> Cc: Benjamin Herrenschmidt
> Cc: Paul Mackerras
> Cc: Michael Ellerman
> Cc: Hari Bathini
> Cc: Nathan Fontenot
On 04/06/2016 04:44 AM, Bharata B Rao wrote:
> memory_hotplug_max() uses hot_add_drconf_memory_max() to get maxmimum
> addressable memory by referring to ibm,dyanamic-memory property. There
> are three problems with the current approach:
>
> 1 hot_add_drconf_memory_max() assumes that ibm,dynamic-m
On 04/18/2016 10:54 PM, Bharata B Rao wrote:
> On Sat, Apr 09, 2016 at 03:44:31PM +0530, Bharata B Rao wrote:
>> On Fri, Apr 08, 2016 at 12:27:44AM -0500, Nathan Fontenot wrote:
>>> On 04/06/2016 04:44 AM, Bharata B Rao wrote:
>>>> memory_hotplug_max() uses hot_
Signed-off-by: Nathan Fontenot
---
arch/powerpc/platforms/pseries/hotplug-memory.c | 11 +++
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c
b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 742ef88..5cefcad 100644
--- a
on next week.
> Signed-off-by: Alexey Kardashevskiy
Acked-by: Nathan Fontenot
> ---
>
> This is made against ad30cb99465 (mpe/next) and can be squashed into
> 51925fb3c5
> if not too late.
>
>
> ---
> arch/powerpc/platforms/pseries/hotplug-memory.c | 13 ++
-connector
before making the set-indicator calls which results in invalid data in the
ibm,associativity property for the cpu we're adding.
This patch corrects the order of operations to make the set-indicator
calls (done in acquire_drc) before calling configure-connector.
Signed-off-by: Nathan Fon
On 04/28/2015 11:53 PM, Michael Ellerman wrote:
> Subject should be "powerpc/pseries: ..." please.
ok
>
> 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 add
calls (done in dlpar_acquire_drc) before calling rtas configure-connector.
Fixes: 1a8061c46c46 ("powerpc/pseries: Add kernel based CPU DLPAR handling")
Signed-off-by: Nathan Fontenot
---
arch/powerpc/platforms/pseries/dlpar.c | 10 --
1 file changed, 4 insertions(+), 6
arent
node aware")
Signed-off-by: Nathan Fontenot
---
arch/powerpc/platforms/pseries/dlpar.c |3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/dlpar.c
b/arch/powerpc/platforms/pseries/dlpar.c
index 019d34a..47d9cebe 100644
--- a/ar
by storing the current policy and only calling
> start_topology_update() in the case where either PRRN/VPHN were enabled to
> start with.
>
> Fixes: e04fa61214a3 (powerpc/pseries: Add /proc interface to control topology
> updates)
>
> Signed-off-by: Tyrel Datwyler
>
On 06/04/2015 05:57 AM, Michael Ellerman wrote:
> On Thu, 2015-04-06 at 09:34:41 UTC, Geert Uytterhoeven wrote:
>> "IS_ENABLED(PPC_PSERIES)" always evaluates to false, as IS_ENABLED() is
>> supposed to be used with the full Kconfig symbol name, including the
>> "CONFIG_" prefix.
>>
>> Add the missi
To better support CPU hotplug in PowerKVM and PowerVM environments, the
handling of CPU dlpar should be done entirely in the kernel. This will allow
a common entry point for PowerVM and PowerKVM CPU dlpar requests. For both
environments, the entry point is the same one introduced in a previous
patc
No functional changes, this patch is simply a move of the cpu hotplug
code from pseries/dlpar.c to pseries/hotplug-cpu.c. This is in an effort
to consolidate all of the cpu hotplug code in a common place.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/platforms/pseries/dlpar.c | 189
.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/platforms/pseries/hotplug-cpu.c | 83 ++
1 file changed, 46 insertions(+), 37 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c
b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index c55cdbc..f58d902
Update the cpu dlpar add/remove paths to do better error recovery when
a failure occurs during the add/remove operation. This includes adding
some pr_info and pr_debug statements.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/platforms/pseries/hotplug-cpu.c | 34
remove and
easily clean up in any cases of failure.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/platforms/pseries/hotplug-cpu.c | 202 ++
arch/powerpc/platforms/pseries/pseries.h |5 +
2 files changed, 207 insertions(+)
diff --git a/arch/powerpc/platforms/pseries
Add the ability to hotplug add cpus via rtas hotplug events by either
specifying the drc index of the CPU to add, or providing a count of the
number of CPUs to add.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/platforms/pseries/hotplug-cpu.c | 76 ++
1 file changed
Enable new kernel cpu hotplug functionality by allowing cpu dlpar requests
to be initiated from sysfs.
Signed-off-by: Nathan Fontenot
---
arch/powerpc/platforms/pseries/dlpar.c |6 ++
1 file changed, 6 insertions(+)
diff --git a/arch/powerpc/platforms/pseries/dlpar.c
b/arch/powerpc
On 06/23/2015 11:01 PM, Bharata B Rao wrote:
> So will it be correct to say that memory hotplug to memory-less node
> isn't supported by PowerPC kernel ? Should I enforce the same in QEMU
> for PowerKVM ?
>
I'm not sure if that is correct. It appears that we initialize all online
nodes, even those
On 07/15/2015 09:35 AM, Thomas Huth wrote:
> On 07/14/2015 11:22 PM, Benjamin Herrenschmidt wrote:
>> On Tue, 2015-07-14 at 20:43 +0200, Thomas Huth wrote:
>>> Any suggestions how to fix this? Simply revert 587f83e8dd50d? Use
>>> mdelay() instead of msleep() in rtas_busy_delay()? Something more
>>>
On 07/16/2015 01:23 AM, Thomas Huth wrote:
> On 07/15/2015 09:58 PM, Nathan Fontenot wrote:
>> On 07/15/2015 09:35 AM, Thomas Huth wrote:
>>> On 07/14/2015 11:22 PM, Benjamin Herrenschmidt wrote:
>>>> On Tue, 2015-07-14 at 20:43 +0200, Thomas Huth wrote:
>>
SY condition (which should be the case
> for the sensor that is queried by the EPOW IRQ handler).
>
> Signed-off-by: Thomas Huth
Reviewed-by: Nathan Fontenot
> ---
> arch/powerpc/include/asm/rtas.h | 1 +
> arch/powerpc/kernel/rtas.c | 17 ++
On 07/20/2015 11:46 PM, Michael Ellerman wrote:
> On Mon, 2015-22-06 at 20:59:20 UTC, Nathan Fontenot wrote:
>> Update the cpu dlpar add/remove paths to do better error recovery when
>> a failure occurs during the add/remove operation. This includes adding
>> some pr_info an
On 07/21/2015 04:27 AM, Michael Ellerman wrote:
> On Mon, 2015-22-06 at 21:00:49 UTC, Nathan Fontenot wrote:
>> Add the ability to dlpar remove CPUs via hotplug rtas events, either by
>> specifying the drc-index of the CPU to remove or providing a count of cpus
>> to remove
On 07/21/2015 08:11 PM, Michael Ellerman wrote:
> On Tue, 2015-07-21 at 16:34 -0500, Nathan Fontenot wrote:
>> On 07/21/2015 04:27 AM, Michael Ellerman wrote:
>>> On Mon, 2015-22-06 at 21:00:49 UTC, Nathan Fontenot wrote:
>>>> +static int dlpar_cpu_remove_by_co
On 08/07/2015 02:59 AM, Andrzej Hajda wrote:
> The patch was generated using fixed coccinelle semantic patch
> scripts/coccinelle/api/memdup.cocci [1].
>
> [1]: http://permalink.gmane.org/gmane.linux.kernel/2014320
>
> Signed-off-by: Andrzej Hajda
Reviewed-b
On 08/07/2015 02:59 AM, Andrzej Hajda wrote:
> The patch was generated using fixed coccinelle semantic patch
> scripts/coccinelle/api/memdup.cocci [1].
>
> [1]: http://permalink.gmane.org/gmane.linux.kernel/2014320
>
> Signed-off-by: Andrzej Hajda
Reviewed-b
On 09/04/2015 05:04 AM, Bharata B Rao wrote:
> From: Bharata B Rao
>
> dlpar_cpu_probe() should release the acquired DRC if configure_connector
> call fails.
>
> Signed-off-by: Bharata B Rao
> Cc: Nathan Fontenot
Reviewed-by: Nathan Fontenot
> ---
> arch/powerp
probe to be performed on a cpu
by writing to the sysfs cpu probe file (/sys/devices/system/cpu/probe).
This patch adds a check for the existence of cpu prior to probing the cpu
so userspace doing the wrong thing won't trigger a BUG_ON().
Signed-off-by: Nathan Fontenot
---
arch/powerpc/plat
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