[PATCH V9 6/8] hotplug/drc-info: Add code to search new devtree properties

ks into a single function without requiring the user to verify whether a search was successful. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V9: -- Remove unnecessary code from rpaphp_check_drc_props_v2() --- drivers/pci/hotplug/rpadlpar_core.c | 13 ++-- dri

[PATCH V9 2/8] powerpc/memory: Parse new memory property to register blocks.

municating with the front end processor, especially when describing vast amounts of RAM. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/prom.h | 24 -- arch/powerpc/kernel/prom.c | 97 --- arch/p

Re: [FIX PATCH v1] powerpc/pseries: Fix reference count leak during CPU unplug

I get the error when removing a CPU that has been hotplugged after boot. On 03/14/2017 03:42 PM, Tyrel Datwyler wrote: > On 03/13/2017 03:29 AM, Bharata B Rao wrote: >> On Thu, Mar 09, 2017 at 01:34:00PM -0800, Tyrel Datwyler wrote: >>> On 03/08/2017 08:37 PM, Bharata B Rao wrote: The

[PATCH 1/4] To: linuxppc-dev@lists.ozlabs.org

the Linux kernel supports the new properties, and by the front end processor to tell the Linux kernel that the new property is present in the device tree. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/firmware.h |3 ++- arch/powerpc/in

[PATCH 0/4] powerpc/devtree: Add support for 'ibm, drc-info' property

this case, we are indicating that the host system can support the new device tree structure "ibm,drc-info". Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Michael Bringmann (4): powerpc/firmware: Add definitions for new drc-info firmware feature. pseries/drc-info

[PATCH 2/4] To: linuxppc-dev@lists.ozlabs.org

ames", "ibm,drc-types" and "ibm,drc-power-domains"), or the new property "ibm,drc-info". Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/prom.h |7 + arch/powerpc/platforms/pseries/of_helpers.c

[PATCH 4/4] To: linuxppc-dev@lists.ozlabs.org

Cc: nf...@linux.vnet.ibm.com Subject: [PATCH 4/4] powerpc: Enable support for new drc-info DRC devtree property prom_init.c: Enable support for new DRC device tree property "ibm,drc-info" in initial handshake between the Linux kernel and the front end processor. Signed-off-by: Michael

[PATCH 3/4] To: linuxppc-dev@lists.ozlabs.org

This update hides the format of the underlying device-tree properties, and concentrates the value checks into a single function without requiring the user to verify whether a search was successful. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- drivers/pci/hotplug/rpadlpar_c

[PATCH 2/5] powerpc/memory: Parse new memory property to register blocks.

municating with the front end processor, especially when describing vast amounts of RAM. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/firmware.h |4 + arch/powerpc/include/asm/prom.h | 25 +- arch/powerpc/kernel/prom.c

[PATCH 3/5] powerpc/memory: Parse new memory property to initialize structures.

he runtime functions for memory hotplug, so it needs to be able to handle both formats. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/prom.h |8 ++ arch/powerpc/mm/numa.c | 193 +-- 2 files changed

[PATCH 4/5] pseries/hotplug init: Convert new DRC memory property for hotplug runtime

perty. Thus only a single set of routines should be required at runtime to parse, edit, and manipulate the memory representation in the device tree. Similarly, any userspace applications that need this information will only need to recognize the older format to be able to continue to operate. Signe

[PATCH 5/5] powerpc: Enable support for new 'ibm, dynamic-memory-v2' devtree property

prom_init.c: Enable support for new DRC device tree properties "ibm,dynamic-memory-v2" in initial handshake between the Linux kernel and the front end processor. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/kernel/prom_init.c |2 +- 1 file chan

[PATCH 0/5] powerpc/devtree: Add support for 'ibm, dynamic-memory-v2' property

ng what features the host system supports and what features the front end processor will actually provide. In this case, we are indicating that the host system can support the new device tree structure "ibm,dynamic-memory-v2". Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com>

[PATCH 1/5] powerpc/dynmemv2: Check arch.vec earlier during boot for memory features

e scanning of the memory properties in the device tree to allow recognition of the supported properties. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/kernel/prom.c |6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/prom.c b/arc

[PATCH V2 0/5] powerpc/devtree: Add support for 'ibm, dynamic-memory-v2' property

eatures the host system supports and what features the front end processor will actually provide. In this case, we are indicating that the host system can support the new device tree structure "ibm,dynamic-memory-v2". Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Mi

[PATCH V2 0/5] powerpc/devtree: Add support for 'ibm, dynamic-memory-v2' property

eatures the host system supports and what features the front end processor will actually provide. In this case, we are indicating that the host system can support the new device tree structure "ibm,dynamic-memory-v2". Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Mi

[PATCH V2 5/5] powerpc: Enable support for new 'ibm, dynamic-memory-v2' devtree property

prom_init.c: Enable support for new DRC device tree properties "ibm,dynamic-memory-v2" in initial handshake between the Linux kernel and the front end processor. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/kernel/prom_init.c |2 +- 1 file chan

[PATCH V2 4/5] pseries/hotplug init: Convert new DRC memory property for hotplug runtime

only a single set of routines should be required at runtime to parse, edit, and manipulate the memory representation in the device tree. Similarly, any userspace applications that need this information will only need to recognize the older format to be able to continue to operate. Signe

[PATCH V2 2/5] powerpc/memory: Parse new memory property to register blocks.

municating with the front end processor, especially when describing vast amounts of RAM. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/firmware.h |4 + arch/powerpc/include/asm/prom.h | 25 +- arch/powerpc/kernel/prom.c

[PATCH V2 1/5] powerpc/dynmemv2: Check arch.vec earlier during boot for memory features

e scanning of the memory properties in the device tree to allow recognition of the supported properties. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/kernel/prom.c |6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/prom.c b/arc

[PATCH V2 3/5] powerpc/memory: Parse new memory property to initialize structures.

he runtime functions for memory hotplug, so it needs to be able to handle both formats. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/prom.h |8 ++ arch/powerpc/mm/numa.c | 193 +-- 2 files changed

[PATCH V2 5/5] powerpc: Enable support for new 'ibm, dynamic-memory-v2' devtree property

prom_init.c: Enable support for new DRC device tree properties "ibm,dynamic-memory-v2" in initial handshake between the Linux kernel and the front end processor. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/kernel/prom_init.c |2 +- 1 file chan

[PATCH V2 2/5] powerpc/memory: Parse new memory property to register blocks.

municating with the front end processor, especially when describing vast amounts of RAM. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/firmware.h |4 + arch/powerpc/include/asm/prom.h | 25 +- arch/powerpc/kernel/prom.c

[PATCH V2 0/5] powerpc/devtree: Add support for 'ibm, dynamic-memory-v2' property

eatures the host system supports and what features the front end processor will actually provide. In this case, we are indicating that the host system can support the new device tree structure "ibm,dynamic-memory-v2". Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Mi

[PATCH V2 1/5] powerpc/dynmemv2: Check arch.vec earlier during boot for memory features

e scanning of the memory properties in the device tree to allow recognition of the supported properties. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/kernel/prom.c |6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/prom.c b/arc

[PATCH V2 3/5] powerpc/memory: Parse new memory property to initialize structures.

he runtime functions for memory hotplug, so it needs to be able to handle both formats. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/prom.h |8 ++ arch/powerpc/mm/numa.c | 193 +-- 2 files changed

[PATCH V2 0/5] powerpc/devtree: Add support for 'ibm, dynamic-memory-v2' property

eatures the host system supports and what features the front end processor will actually provide. In this case, we are indicating that the host system can support the new device tree structure "ibm,dynamic-memory-v2". Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Mi

[PATCH V2 4/5] pseries/hotplug init: Convert new DRC memory property for hotplug runtime

only a single set of routines should be required at runtime to parse, edit, and manipulate the memory representation in the device tree. Similarly, any userspace applications that need this information will only need to recognize the older format to be able to continue to operate. Signe

[PATCH V3 0/5] powerpc/devtree: Add support for 'ibm, dynamic-memory-v2' property

eatures the host system supports and what features the front end processor will actually provide. In this case, we are indicating that the host system can support the new device tree structure "ibm,dynamic-memory-v2". Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Mi

[PATCH V3 1/5] powerpc/dynmemv2: Check arch.vec earlier during boot for memory features

e scanning of the memory properties in the device tree to allow recognition of the supported properties. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/kernel/prom.c |6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/prom.c b/arc

[PATCH V3 0/5] powerpc/devtree: Add support for 'ibm, dynamic-memory-v2' property

eatures the host system supports and what features the front end processor will actually provide. In this case, we are indicating that the host system can support the new device tree structure "ibm,dynamic-memory-v2". Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Mi

[PATCH V3 1/5] powerpc/dynmemv2: Check arch.vec earlier during boot for memory features

e scanning of the memory properties in the device tree to allow recognition of the supported properties. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/kernel/prom.c |6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/prom.c b/arc

[PATCH V3 2/5] powerpc/memory: Parse new memory property to register blocks.

municating with the front end processor, especially when describing vast amounts of RAM. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/firmware.h |4 + arch/powerpc/include/asm/prom.h | 25 +- arch/powerpc/kernel/prom.c

[PATCH V3 3/5] powerpc/memory: Parse new memory property to initialize structures.

he runtime functions for memory hotplug, so it needs to be able to handle both formats. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/prom.h |8 ++ arch/powerpc/mm/numa.c | 193 +-- 2 files changed

[PATCH V3 4/5] pseries/hotplug init: Convert new DRC memory property for hotplug runtime

only a single set of routines should be required at runtime to parse, edit, and manipulate the memory representation in the device tree. Similarly, any userspace applications that need this information will only need to recognize the older format to be able to continue to operate. Signe

[PATCH V3 5/5] powerpc: Enable support for new 'ibm, dynamic-memory-v2' devtree property

prom_init.c: Enable support for new DRC device tree properties "ibm,dynamic-memory-v2" in initial handshake between the Linux kernel and the front end processor. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/kernel/prom_init.c |2 +- 1 file chan

[PATCH V8 0/2] powerpc/dlpar: Correct display of hot-add/hot-remove CPUs and memory

(VPHN) capabilities information provided by the pHyp. The VPHN handling in Linux is disabled, if PRRN handling is present. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Michael Bringmann (2): powerpc/hotplug: Add option to define max nodes allowing dynamic growth of res

[PATCH V8 1/2] powerpc/hotplug: Ensure enough nodes avail for operations

this value and use it to ensure that all of the desired nodes are setup in the 'node_possible_map', and elsewhere. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- --- arch/powerpc/mm/numa.c | 31 +++ 1 file changed, 31 insertions(+) diff --git

[PATCH V8 2/2] powerpc/numa: Update CPU topology when VPHN enabled

information provided by the pHyp. Also, update initialization checks for device-tree attributes to independently recognize PRRN or VPHN usage. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V8: -- Fix a conditional compile bug. --- arch/powerpc/include/asm/topo

[PATCH 2/4] pseries/drc-info: Search DRC properties for CPU indexes

pseries/drc-info: Provide parallel routines to convert between drc_index and CPU numbers at runtime, using the older device-tree properties ("ibm,drc-indexes", "ibm,drc-names", "ibm,drc-types" and "ibm,drc-power-domains"), or the new property "ibm,dr

[PATCH V2 0/4] powerpc/devtree: Add support for 'ibm,drc-info' property

this case, we are indicating that the host system can support the new device tree structure "ibm,drc-info". Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Michael Bringmann (4): powerpc/firmware: Add definitions for new drc-info firmware feature. pseries/drc-info

[PATCH V2 3/4] hotplug/drc-info: Add code to search ibm,drc-info property

ks into a single function without requiring the user to verify whether a search was successful. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- drivers/pci/hotplug/rpadlpar_core.c | 13 ++-- drivers/pci/hotplug/rpaphp.h|4 + drivers/pci/hotplug/rpaphp_core.c | 10

[PATCH V2 1/4] powerpc/firmware: Add definitions for new drc-info firmware feature

w property is present in the device tree. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/include/asm/firmware.h |3 ++- arch/powerpc/include/asm/prom.h |1 + arch/powerpc/platforms/pseries/firmware.c |1 + 3 files changed, 4 insertions(+), 1 d

[PATCH V2 4/4] powerpc: Enable support for ibm,drc-info devtree property

prom_init.c: Enable support for new DRC device tree property "ibm,drc-info" in initial handshake between the Linux kernel and the front end processor. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/kernel/prom_init.c |1 + 1 file changed, 1 in

Re: [PATCH V6 0/2] powerpc/dlpar: Correct display of hot-add/hot-remove CPUs and memory

One of the patches was doubled and sent twice yesterday. Will update number regardless in future. On 06/21/2017 04:54 AM, Michael Ellerman wrote: > Michael Bringmann <m...@linux.vnet.ibm.com> writes: > >> On Power systems with shared configurations of CPUs and memory, there

Re: [PATCH V6 1/2] powerpc/hotplug: Ensure enough nodes avail for operations

On 06/21/2017 04:52 AM, Michael Ellerman wrote: > Michael Bringmann <m...@linux.vnet.ibm.com> writes: > >> powerpc/hotplug: On systems like PowerPC which allow 'hot-add' of CPU >> or memory resources, it may occur that the new resources are to be >> inserted

[PATCH V7 2/2] powerpc/numa: Update CPU topology when VPHN enabled

information provided by the pHyp. Also, update initialization checks for device-tree attributes to independently recognize PRRN or VPHN usage. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V7: -- Fix a conditional compile bug. --- arch/powerpc/include/asm/topo

[PATCH V7 1/2] powerpc/hotplug: Ensure enough nodes avail for operations

this value and use it to ensure that all of the desired nodes are setup in the 'node_possible_map', and elsewhere. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- --- arch/powerpc/mm/numa.c | 31 +++ 1 file changed, 31 insertions(+) diff --git

Subject: [PATCH V7 0/2] powerpc/dlpar: Correct display of hot-add/hot-remove CPUs and memory

(VPHN) capabilities information provided by the pHyp. The VPHN handling in Linux is disabled, if PRRN handling is present. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Michael Bringmann (2): powerpc/hotplug: Add option to define max nodes allowing dynamic growth of res

[PATCH V6 0/2] powerpc/dlpar: Correct display of hot-add/hot-remove CPUs and memory

(VPHN) capabilities information provided by the pHyp. The VPHN handling in Linux is disabled, if PRRN handling is present. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Michael Bringmann (2): powerpc/hotplug: Add option to define max nodes allowing dynamic growth of res

[PATCH V6 1/2] powerpc/hotplug: Ensure enough nodes avail for operations

this value and use it to ensure that all of the desired nodes are setup in the 'node_possible_map', and elsewhere. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- --- arch/powerpc/mm/numa.c | 31 +++ 1 file changed, 31 insertions(+) diff --git

[PATCH V6 2/2] powerpc/numa: Update CPU topology when VPHN enabled

information provided by the pHyp. Also, update initialization checks for device-tree attributes to independently recognize PRRN or VPHN usage. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V6: -- Place extern of timed_topology_update() proto under additional

[PATCH V6 0/2] powerpc/dlpar: Correct display of hot-add/hot-remove CPUs and memory

(VPHN) capabilities information provided by the pHyp. The VPHN handling in Linux is disabled, if PRRN handling is present. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Michael Bringmann (2): powerpc/hotplug: Add option to define max nodes allowing dynamic growth of res

[PATCH V6 1/2] powerpc/numa: Update CPU topology when VPHN enabled

information provided by the pHyp. Also, update initialization checks for device-tree attributes to independently recognize PRRN or VPHN usage. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V6: -- Place extern of timed_topology_update() proto under additional

[PATCH V6 1/2] powerpc/hotplug: Ensure enough nodes avail for operations

this value and use it to ensure that all of the desired nodes are setup in the 'node_possible_map', and elsewhere. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- --- arch/powerpc/mm/numa.c | 31 +++ 1 file changed, 31 insertions(+) diff --git

[PATCH V6 2/2] powerpc/numa: Update CPU topology when VPHN enabled

information provided by the pHyp. Also, update initialization checks for device-tree attributes to independently recognize PRRN or VPHN usage. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V6: -- Place extern of timed_topology_update() proto under additional

[PATCH] powerpc/hotplug-mem: Fix aa_index match bug for hotplug

node in the code inappropriately. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/platforms/pseries/hotplug-memory.c |2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/h

[PATCH 0/2] powerpc/dlpar: Correct display of hot-add/hot-remove CPUs and memory

nodes in order to associate memory to nodes not needed at boot time, but relevant to dynamically added memory. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Michael Bringmann (2): powerpc/numa: Update CPU topology when VPHN enabled powerpc/hotplug-memory: Fix hot-add memor

[PATCH 1/2] powerpc/numa: Update CPU topology when VPHN enabled

information provided by the pHyp. The VPHN handling in Linux is disabled, if PRRN handling is present. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/mm/numa.c | 19 ++- arch/powerpc/platforms/pseries/dlpar.c |2 ++ arch/p

[Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/mm/numa.c | 44 1 file changed, 32 insertions(+), 12 deletions(-) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 15c2dd5..3d58c1f 100644 --- a/arch/powe

Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

On 05/23/2017 10:52 AM, Reza Arbab wrote: > On Tue, May 23, 2017 at 10:15:44AM -0500, Michael Bringmann wrote: >> +static void setup_nodes(void) >> +{ >> +int i, l = 32 /* MAX_NUMNODES */; >> + >> +for (i = 0; i < l; i++

Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

On 05/23/2017 04:49 PM, Reza Arbab wrote: > On Tue, May 23, 2017 at 03:05:08PM -0500, Michael Bringmann wrote: >> On 05/23/2017 10:52 AM, Reza Arbab wrote: >>> On Tue, May 23, 2017 at 10:15:44AM -0500, Michael Bringmann wrote: >>>> +static void setup_nodes(void) &

Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

On 05/23/2017 04:49 PM, Reza Arbab wrote: > On Tue, May 23, 2017 at 03:05:08PM -0500, Michael Bringmann wrote: >> On 05/23/2017 10:52 AM, Reza Arbab wrote: >>> On Tue, May 23, 2017 at 10:15:44AM -0500, Michael Bringmann wrote: >>>> +static void setup_nodes(void) &

Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

I will get a log based on the latest 4.12 kernel to show what happens one way or the other, with this patch removed. On 05/24/2017 09:36 AM, Reza Arbab wrote: > On Tue, May 23, 2017 at 05:44:23PM -0500, Michael Bringmann wrote: >> On 05/23/2017 04:49 PM, Reza Arbab wrote: >>> On

Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

On 05/24/2017 06:19 AM, Michael Ellerman wrote: > Michael Bringmann <m...@linux.vnet.ibm.com> writes: > >> On 05/23/2017 04:49 PM, Reza Arbab wrote: >>> On Tue, May 23, 2017 at 03:05:08PM -0500, Michael Bringmann wrote: >>>> On 05/23/2017 10:52 AM, Reza

Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

I am running into this problem on PowerPC systems where Balbir's patch set was targeted. So, yes, I do need to be able to add/enable a new numa node during system execution in cases where more resources (memory, virtual processors) are added to the system dynamically. On 05/25/2017 10:46 PM,

[PATCH V3 1/2] powerpc/numa: Update CPU topology when VPHN enabled

information provided by the pHyp. The VPHN handling in Linux is disabled, if PRRN handling is present. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V3: -- Remove change unrelated to this patch --- arch/powerpc/mm/numa.c | 19 ++- arch/p

Re: [PATCH V2 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

>> arch/powerpc/mm/numa.c |7 --- >> 1 file changed, 7 deletions(-) >> >> diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c >> index 15c2dd5..18f3038 100644 >> --- a/arch/powerpc/mm/numa.c >> +++ b/arch/powerpc/mm/numa.c >> @@ -907,13 +907,6 @@ void __init initmem_init(void) >>

[PATCH V3 2/2] powerpc/hotplug/mm: Fix hot-add memory node assoc

to subsequent DLPAR hotplug-memory operations, even if they are not needed at boot time. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V3: -- Remove code not relevant to this defect. --- arch/powerpc/mm/numa.c |7 --- 1 file changed, 7 deletions(-)

[PATCH V4 2/2] powerpc/hotplug/mm: Fix hot-add memory node assoc

to subsequent DLPAR hotplug-memory operations, even if they are not needed at boot time. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- --- arch/powerpc/mm/numa.c |7 --- 1 file changed, 7 deletions(-) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c

[PATCH V4 1/2] powerpc/numa: Update CPU topology when VPHN enabled

information provided by the pHyp. The VPHN handling in Linux is disabled, if PRRN handling is present. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V4: -- Fix conditional compile bug. --- arch/powerpc/mm/numa.c | 19 ++- arch/powerpc/pla

Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

On 05/25/2017 10:10 AM, Reza Arbab wrote: > On Thu, May 25, 2017 at 04:19:53PM +1000, Michael Ellerman wrote: >> The commit message for 3af229f2071f says: >> >>In practice, we never see a system with 256 NUMA nodes, and in fact, we >>do not support node hotplug on power in the first

Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

On 05/25/2017 01:19 AM, Michael Ellerman wrote: > Michael Bringmann <m...@linux.vnet.ibm.com> writes: > >> On 05/24/2017 06:19 AM, Michael Ellerman wrote: >>> Michael Bringmann <m...@linux.vnet.ibm.com> writes: >>>> >>>> With or w

Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

On 06/01/2017 04:36 AM, Michael Ellerman wrote: > Michael Bringmann <m...@linux.vnet.ibm.com> writes: > >> On 05/29/2017 12:32 AM, Michael Ellerman wrote: >>> Reza Arbab <ar...@linux.vnet.ibm.com> writes: >>> >>>> On Fri, May 26, 2017 a

[RFC] powerpc/hotplug: Resolve dlpar hot-add cpu deadlock

same thread as the DLPAR hot-add cpu operation to operate. To compensate, the function arch_update_cpu_topology will be invoked by a repeating timer worker function shortly after the device_online operation has completed. This workaround is completely contained within the powerpc-arch code. Signed-off-by

[RFC v2] powerpc/hotplug: Resolve dlpar hot-add cpu deadlock

ensate, the function arch_update_cpu_topology will be invoked by a repeating timer worker function shortly after the device_online operation has completed. This workaround is completely contained within the powerpc-arch code. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com

Re: [PATCH V3 1/2] powerpc/numa: Update CPU topology when VPHN enabled

d test ERROR on v4.12-rc3 next-20170602] > [if your patch is applied to the wrong git tree, please drop us a note to > help improve the system] > > url: > https://github.com/0day-ci/linux/commits/Michael-Bringmann/powerpc-numa-Update-CPU-topology-when-VPHN-enabled/20170527-052650 >

RESEND Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

). On 06/07/2017 07:08 AM, Michael Ellerman wrote: > Michael Bringmann <m...@linux.vnet.ibm.com> writes: > >> On 06/06/2017 04:48 AM, Michael Ellerman wrote: >>> Michael Bringmann <m...@linux.vnet.ibm.com> writes: >>>> On 06/01/2017 04:36 AM, Mich

Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

). MICHAEL W. BRINGMANN Linux Technology Center IBM Corporation Tie-Line: 363-5196 Ext Phone: 1-512-286-5196 Cell Phone: (512) 466-0650 E-mail: mbri...@us.ibm.com     - Original message -From: Michael Ellerman <m...@ellerman.id.au>To: Michael Bringmann <m...@linux.vnet.ibm.com>, Re

Resend [PATCH] powerpc/hotplug-mem: Fix aa_index match bug for hotplug

node in the code inappropriately. Note: This is a bug that we would likely want to see fixed in stable circa v4.1+. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/platforms/pseries/hotplug-memory.c |2 ++ 1 file changed, 2 insertions(+) diff --git

[PATCH v2] workqueue: Fix edge cases for calc of pool's cpumask

execution by CPUs on another node. In these and other cases, the patch attempts to ensure that a valid, usable cpumask is used to set up newly created pools for workqueues. Signed-off-by: Tejun Heo <t...@kernel.org> & Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes i

Re: [PATCH v2] workqueue: Fix edge cases for calc of pool's cpumask

On 06/06/2017 09:20 AM, Tejun Heo wrote: > Hello, Michael. > > It would have been better to continue debugging in the prev thread. > This still seems incorrect for the same reason as before. > > On Tue, Jun 06, 2017 at 09:09:40AM -0500, Michael Bringmann wrote: >> On N

Re: RESEND Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

Hello: On 06/14/2017 12:27 AM, Balbir Singh wrote: > On Wed, Jun 14, 2017 at 3:25 PM, Balbir Singh <bsinghar...@gmail.com> wrote: >> >> >> On Wed, Jun 14, 2017 at 8:21 AM, Michael Bringmann <m...@linux.vnet.ibm.com> >> wrote: >>> >>> O

Re: RESEND Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

foresee any problems with using such a feature? Thanks. On 06/13/2017 05:45 AM, Michael Ellerman wrote: > Michael Bringmann <m...@linux.vnet.ibm.com> writes: > >> Here is the information from 2 different kernels. I have not been able to >> retrieve >> the in

[PATCH V5 0/2] powerpc/dlpar: Correct display of hot-add/hot-remove CPUs and memory

(VPHN) capabilities information provided by the pHyp. The VPHN handling in Linux is disabled, if PRRN handling is present. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> Michael Bringmann (2): powerpc/hotplug: Add option to define max nodes allowing dynamic growth of res

[PATCH 1/2] powerpc/hotplug: Ensure enough nodes avail for operations

this value and use it to ensure that all of the desired nodes are setup in the 'node_possible_map', and elsewhere. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- --- arch/powerpc/mm/numa.c | 31 +++ 1 file changed, 31 insertions(+) diff --git

[PATCH V5 2/2] powerpc/numa: Update CPU topology when VPHN enabled

information provided by the pHyp. Also, update initialization checks for device-tree attributes to independently recognize PRRN or VPHN usage. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V5: -- Independently recognize PRRN or VPHN usage at boot time. -- Modify int

[PATCH V2 1/2] powerpc/numa: Update CPU topology when VPHN enabled

information provided by the pHyp. The VPHN handling in Linux is disabled, if PRRN handling is present. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/mm/numa.c | 19 ++- arch/powerpc/platforms/pseries/dlpar.c |2 ++ arch/p

[PATCH V2 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V2: -- Simplify patches to ensure more nodes in possible map, removing code from PowerPC numa.c that constrained possible map to size of online map. --- arch/powerpc/mm/numa.c |7 --- 1 file chan

Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

On 05/29/2017 12:32 AM, Michael Ellerman wrote: > Reza Arbab writes: > >> On Fri, May 26, 2017 at 01:46:58PM +1000, Michael Ellerman wrote: >>> Reza Arbab writes: >>> On Thu, May 25, 2017 at 04:19:53PM +1000, Michael Ellerman wrote:

Re: [Patch 2/2]: powerpc/hotplug/mm: Fix hot-add memory node assoc

On 06/06/2017 04:48 AM, Michael Ellerman wrote: > Michael Bringmann <m...@linux.vnet.ibm.com> writes: >> On 06/01/2017 04:36 AM, Michael Ellerman wrote: >>> Do you actually see mention of nodes 0 and 8 in the dmesg? >> >> When the 'numa.c' code is built

[PATCH 2/2] powerpc/hotplug: Ensure nodes initialized for hotplug

. This patch fixes some problems encountered at runtime with configurations that support memory-less nodes, but which allow CPUs to be added at and after boot. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/mm/numa.c | 17 +++-- 1 file chang

[PATCH 0/2] powerpc/nodes/hotplug: Fix problem with memoryless nodes

rent configurations of PowerPC resources may need to be supported depending upon the environment. This patch fixes some problems encountered at runtime with configurations that support memory-less nodes, but which allow CPUs to be added at and after boot. Signed-off-by: Michael Bringmann <m...@linux

[PATCH 1/2] powerpc/nodes: Ensure enough nodes avail for operations

able additional nodes. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- arch/powerpc/mm/numa.c | 47 +++ 1 file changed, 47 insertions(+) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index ec098b3..b385cd0 10064

Re: [PATCH 2/2] powerpc/hotplug: Ensure nodes initialized for hotplug

On 10/16/2017 07:54 AM, Michael Ellerman wrote: > Michael Bringmann <m...@linux.vnet.ibm.com> writes: > >> powerpc/hotplug: On systems like PowerPC which allow 'hot-add' of CPU, >> it may occur that the new resources are to be inserted into nodes >> that were

[PATCH V14 1/4] powerpc/vphn: Update CPU topology when VPHN enabled

for the CPU. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V14: -- Cleanup some duplicate code. Change a trace stmt to debug. --- arch/powerpc/mm/numa.c | 22 +- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/mm/nu

[PATCH V14 2/4] powerpc/vphn: Improve recognition of PRRN/VPHN

-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V14: -- Code cleanup to reduce patch sizes --- arch/powerpc/mm/numa.c |8 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 3ae031d..5f5ff46 100644 ---

[PATCH V14 3/4] powerpc/hotplug: Improve responsiveness of hotplug change

value to better ensure that the CPU topology is detected and configured sooner. Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V14: -- Restore accidentally deleted reset of topology timer. --- arch/powerpc/include/asm/topology.h |8 arch/powe

[PATCH V14 4/4] powerpc/vphn: Fix numa update end-loop bug

(). Signed-off-by: Michael Bringmann <m...@linux.vnet.ibm.com> --- Changes in V14: -- More code cleanup --- arch/powerpc/mm/numa.c | 10 -- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 32f5f8d..ec098b3 100644 ---

Re: [PATCH V13 4/4] powerpc/vphn: Fix numa update end-loop bug

updates[i-1].next = NULL; Link all of the updates together, and NULL the link pointer in the last entry to be filled in. No worries about invalid comparisons. Reduced code. Michael On 09/07/2017 08:35 AM, Nathan Fontenot wrote: > On 09/06/2017 05:03 PM, Michael Bringmann wrote: >> &

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