during boot.
* Rework numa distance code based on review feedback.
Changes from v3:
* Drop PAPR SCM specific changes and depend completely on NUMA distance
information.
Changes from v2:
* Add nvdimm list to Cc:
* update PATCH 8 commit message.
Changes from v1:
* Update FORM2 documentatio
No functional change in this patch.
Reviewed-by: David Gibson
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 38 +++---
1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index
David Gibson writes:
> On Thu, Jul 22, 2021 at 12:37:46PM +0530, Aneesh Kumar K.V wrote:
>> David Gibson writes:
>>
>> > On Mon, Jun 28, 2021 at 08:41:15PM +0530, Aneesh Kumar K.V wrote:
>
>> >
>> >> + nid = of_read_number([index
David Gibson writes:
> On Mon, Jun 28, 2021 at 08:41:17PM +0530, Aneesh Kumar K.V wrote:
>> PAPR interface currently supports two different ways of communicating
>> resource
>> grouping details to the OS. These are referred to as Form 0 and Form 1
>> associativity gr
David Gibson writes:
> On Mon, Jun 28, 2021 at 08:41:16PM +0530, Aneesh Kumar K.V wrote:
>> This helper is only used with the dispatch trace log collection.
>> A later patch will add Form2 affinity support and this change helps
>> in keeping that simpler. Also add a commen
David Gibson writes:
> On Mon, Jun 28, 2021 at 08:41:15PM +0530, Aneesh Kumar K.V wrote:
>> The associativity details of the newly added resourced are collected from
>> the hypervisor via "ibm,configure-connector" rtas call. Update the numa
>> distance details of
On 7/22/21 8:06 AM, David Gibson wrote:
On Thu, Jul 22, 2021 at 11:59:15AM +1000, David Gibson wrote:
On Mon, Jun 28, 2021 at 08:41:12PM +0530, Aneesh Kumar K.V wrote:
No functional change in this patch.
The new name does not match how you describe "primary domain index" in
the doc
On 7/13/21 7:57 PM, Daniel Henrique Barboza wrote:
Aneesh,
This series compiles with a configuration made with "pseries_le_defconfig"
but fails with a config based on an existing RHEL8 config.
The reason, which is hinted in the robot replies in patch 4, is that you
defined
a
David Gibson writes:
> On Thu, Jun 24, 2021 at 01:50:34PM +0530, Aneesh Kumar K.V wrote:
>> David Gibson writes:
>>
>> > On Thu, Jun 17, 2021 at 10:21:05PM +0530, Aneesh Kumar K.V wrote:
>> >> PAPR interface currently supports two different ways of communic
-off-by: Daniel Henrique Barboza
Signed-off-by: Aneesh Kumar K.V
---
Documentation/powerpc/associativity.rst | 103 ++
arch/powerpc/include/asm/firmware.h | 3 +-
arch/powerpc/include/asm/prom.h | 1 +
arch/powerpc/kernel/prom_init.c | 3 +-
arch
This helper is only used with the dispatch trace log collection.
A later patch will add Form2 affinity support and this change helps
in keeping that simpler. Also add a comment explaining we don't expect
the code to be called with FORM0
Reviewed-by: David Gibson
Signed-off-by: Aneesh Kumar K.V
de id
from the associativity property, add helpers that can be used
during boot which does this only once. Also remove the distance
update from node id lookup helpers.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c| 173 +-
arch/powerpc/platforms/pseries/hot
Also make related code cleanup that will allow adding FORM2_AFFINITY in
later patches. No functional change in this patch.
Reviewed-by: David Gibson
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/include/asm/firmware.h | 4 +--
arch/powerpc/include/asm/prom.h | 2 +-
arch
No functional change in this patch
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 20 ++--
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 8365b298ec48..132813dd1a6c 100644
--- a/arch/powerpc/mm
No functional change in this patch.
Reviewed-by: David Gibson
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 38 +++---
1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index
p PAPR SCM specific changes and depend completely on NUMA distance
information.
Changes from v2:
* Add nvdimm list to Cc:
* update PATCH 8 commit message.
Changes from v1:
* Update FORM2 documentation.
* rename max_domain_index to max_associativity_domain_index
Aneesh Kumar K.V (6):
powerpc/pserie
Christophe Leroy writes:
> Pagewalk ignores hugepd entries and walk down the tables
> as if it was traditionnal entries, leading to crazy result.
But we do handle hugetlb separately
if (vma && is_vm_hugetlb_page(vma)) {
if (ops->hugetlb_entry)
On 6/24/21 4:03 PM, Laurent Dufour wrote:
Hi Aneesh,
A little bit of wordsmithing below...
Le 17/06/2021 à 18:51, Aneesh Kumar K.V a écrit :
PAPR interface currently supports two different ways of communicating
resource
grouping details to the OS. These are referred to as Form 0 and Form 1
David Gibson writes:
> On Thu, Jun 17, 2021 at 10:21:05PM +0530, Aneesh Kumar K.V wrote:
>> PAPR interface currently supports two different ways of communicating
>> resource
>> grouping details to the OS. These are referred to as Form 0 and Form 1
>> associativity gr
Daniel Henrique Barboza writes:
> On 6/17/21 1:51 PM, Aneesh Kumar K.V wrote:
>> PAPR interface currently supports two different ways of communicating
>> resource
>> grouping details to the OS. These are referred to as Form 0 and Form 1
>> associativity grouping.
On 6/18/21 1:30 AM, Daniel Henrique Barboza wrote:
On 6/17/21 8:11 AM, Aneesh Kumar K.V wrote:
Daniel Henrique Barboza writes:
On 6/17/21 4:46 AM, David Gibson wrote:
On Tue, Jun 15, 2021 at 12:35:17PM +0530, Aneesh Kumar K.V wrote:
David Gibson writes:
In fact, the more I speak
-off-by: Daniel Henrique Barboza
Signed-off-by: Aneesh Kumar K.V
---
Documentation/powerpc/associativity.rst | 135
arch/powerpc/include/asm/firmware.h | 3 +-
arch/powerpc/include/asm/prom.h | 1 +
arch/powerpc/kernel/prom_init.c | 3 +-
arch
This helper is only used with the dispatch trace log collection.
A later patch will add Form2 affinity support and this change helps
in keeping that simpler. Also add a comment explaining we don't expect
the code to be called with FORM0
Reviewed-by: David Gibson
Signed-off-by: Aneesh Kumar K.V
Instead of updating NUMA distance every time we lookup a node id
from the associativity property, add helpers that can be used
during boot which does this only once. Also remove the distance
update from node id lookup helpers.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 135
or node id from associativity array.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c| 41 +++
arch/powerpc/platforms/pseries/hotplug-cpu.c | 2 +
.../platforms/pseries/hotplug-memory.c| 2 +
arch/powerpc/platforms/pseries/pseries.h
Also make related code cleanup that will allow adding FORM2_AFFINITY in
later patches. No functional change in this patch.
Reviewed-by: David Gibson
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/include/asm/firmware.h | 4 +--
arch/powerpc/include/asm/prom.h | 2 +-
arch
No functional change in this patch.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 38 +++---
1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index f2bf98bdcea2..8365b298ec48 100644
No functional change in this patch
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 20 ++--
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 8365b298ec48..132813dd1a6c 100644
--- a/arch/powerpc/mm
vel/20210616011944.2996399-1-danielhb...@gmail.com/
Changes from v3:
* Drop PAPR SCM specific changes and depend completely on NUMA distance
information.
Changes from v2:
* Add nvdimm list to Cc:
* update PATCH 8 commit message.
Changes from v1:
* Update FORM2 documentation.
* rename max_domain_index t
Aneesh Kumar K.V writes:
> David Gibson writes:
>
>> On Tue, Jun 15, 2021 at 12:35:17PM +0530, Aneesh Kumar K.V wrote:
>>> David Gibson writes:
>>>
>>> > On Tue, Jun 15, 2021 at 11:27:50AM +0530, Aneesh Kumar K.V wrote:
>>> >> David Gi
David Gibson writes:
> On Tue, Jun 15, 2021 at 12:35:17PM +0530, Aneesh Kumar K.V wrote:
>> David Gibson writes:
>>
>> > On Tue, Jun 15, 2021 at 11:27:50AM +0530, Aneesh Kumar K.V wrote:
>> >> David Gibson writes:
>> >>
>> >> > O
On 6/17/21 4:41 PM, Aneesh Kumar K.V wrote:
Daniel Henrique Barboza writes:
On 6/17/21 4:46 AM, David Gibson wrote:
On Tue, Jun 15, 2021 at 12:35:17PM +0530, Aneesh Kumar K.V wrote:
David Gibson writes:
On Tue, Jun 15, 2021 at 11:27:50AM +0530, Aneesh Kumar K.V wrote:
David Gibson
Daniel Henrique Barboza writes:
> On 6/17/21 4:46 AM, David Gibson wrote:
>> On Tue, Jun 15, 2021 at 12:35:17PM +0530, Aneesh Kumar K.V wrote:
>>> David Gibson writes:
>>>
>>>> On Tue, Jun 15, 2021 at 11:27:50AM +0530, Aneesh Kumar K.V wrote:
>>>&
On 6/17/21 1:16 PM, David Gibson wrote:
On Tue, Jun 15, 2021 at 12:35:17PM +0530, Aneesh Kumar K.V wrote:
David Gibson writes:
On Tue, Jun 15, 2021 at 11:27:50AM +0530, Aneesh Kumar K.V wrote:
David Gibson writes:
...
It's weird to me that you'd want to consider them in different nodes
On 6/17/21 1:20 PM, David Gibson wrote:
On Tue, Jun 15, 2021 at 01:10:27PM +0530, Aneesh Kumar K.V wrote:
David Gibson writes:
PAPR defines "most significant" as below
When the “ibm,architecture-vec-5” property byte 5 bit 0 has the value of one,
the “ibm,associativ-
ity
No functional change in this patch
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 20 ++--
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 8365b298ec48..132813dd1a6c 100644
--- a/arch/powerpc/mm
werpc/pseries: Add support for FORM2 associativity"
Cc: nvd...@lists.linux.dev
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c| 28 +++
arch/powerpc/platforms/pseries/papr_scm.c | 26 +
arch/powerpc/platforms/pseries/pseri
-off-by: Daniel Henrique Barboza
Signed-off-by: Aneesh Kumar K.V
---
Documentation/powerpc/associativity.rst | 177 ++
arch/powerpc/include/asm/firmware.h | 3 +-
arch/powerpc/include/asm/prom.h | 1 +
arch/powerpc/kernel/prom_init.c | 3
This helper is only used with the dispatch trace log collection.
A later patch will add Form2 affinity support and this change helps
in keeping that simpler. Also add a comment explaining we don't expect
the code to be called with FORM0
Reviewed-by: David Gibson
Signed-off-by: Aneesh Kumar K.V
Instead of updating NUMA distance every time we lookup a node id
from the associativity property, add helpers that can be used
during boot which does this only once. Also remove the distance
update from node id lookup helpers.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 135
or node id from associativity array.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c| 41 +++
arch/powerpc/platforms/pseries/hotplug-cpu.c | 2 +
.../platforms/pseries/hotplug-memory.c| 2 +
arch/powerpc/platforms/pseries/pseries.h
Also make related code cleanup that will allow adding FORM2_AFFINITY in
later patches. No functional change in this patch.
Reviewed-by: David Gibson
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/include/asm/firmware.h | 4 +--
arch/powerpc/include/asm/prom.h | 2 +-
arch
No functional change in this patch.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 38 +++---
1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index f2bf98bdcea2..8365b298ec48 100644
ealloc=yes,mem-path=$PMEM_DISK,share=yes,size=${PMEM_SIZE}
\
-device
nvdimm,label-size=128K,memdev=memnvdimm1,id=nvdimm1,slot=4,uuid=72511b67-0b3b-42fd-8d1d-5be3cae8bcaa,node=4,device-node=1
Qemu changes can be found at
https://lore.kernel.org/qemu-devel/20210616011944.2996399-1-danielhb...@gmail
FORM2 introduce a concept of secondary domain which is identical to the
conceept of FORM1 primary domain. Use secondary domain as the numa node
when using persistent memory device. For DAX kmem use the logical domain
id introduced in FORM2. This new numa node
Signed-off-by: Aneesh Kumar K.V
-off-by: Daniel Henrique Barboza
Signed-off-by: Aneesh Kumar K.V
---
Documentation/powerpc/associativity.rst | 177 ++
arch/powerpc/include/asm/firmware.h | 3 +-
arch/powerpc/include/asm/prom.h | 1 +
arch/powerpc/kernel/prom_init.c | 3
This helper is only used with the dispatch trace log collection.
A later patch will add Form2 affinity support and this change helps
in keeping that simpler. Also add a comment explaining we don't expect
the code to be called with FORM0
Reviewed-by: David Gibson
Signed-off-by: Aneesh Kumar K.V
Instead of updating NUMA distance every time we lookup a node id
from the associativity property, add helpers that can be used
during boot which does this only once. Also remove the distance
update from node id lookup helpers.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 135
or node id from associativity array.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c| 41 +++
arch/powerpc/platforms/pseries/hotplug-cpu.c | 2 +
.../platforms/pseries/hotplug-memory.c| 2 +
arch/powerpc/platforms/pseries/pseries.h
Also make related code cleanup that will allow adding FORM2_AFFINITY in
later patches. No functional change in this patch.
Reviewed-by: David Gibson
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/include/asm/firmware.h | 4 +--
arch/powerpc/include/asm/prom.h | 2 +-
arch
No functional change in this patch
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 20 ++--
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 8365b298ec48..132813dd1a6c 100644
--- a/arch/powerpc/mm
No functional change in this patch.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 38 +++---
1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index f2bf98bdcea2..8365b298ec48 100644
ealloc=yes,mem-path=$PMEM_DISK,share=yes,size=${PMEM_SIZE}
\
-device
nvdimm,label-size=128K,memdev=memnvdimm1,id=nvdimm1,slot=4,uuid=72511b67-0b3b-42fd-8d1d-5be3cae8bcaa,node=4,device-node=1
Qemu changes can be found at
https://lore.kernel.org/qemu-devel/20210616011944.2996399-1-danielhb...@gmai
ewer code. The newer one is better?
Reviewed-by: Aneesh Kumar K.V
Cc: Oliver O'Halloran
Cc: Aneesh Kumar K.V
Signed-off-by: Andy Shevchenko
---
v2: added missed header (Vaibhav), updated comment (Aneesh),
rewrite part of the commit message to avoid mentioning the Sparse
arch/power
-aligned
mremap time:63886ns
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/platforms/Kconfig.cputype | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/platforms/Kconfig.cputype
b/arch/powerpc/platforms/Kconfig.cputype
index f998e655b570..be8ceb5bece4 100644
--- a/arch
memory access
didn't show any observable performance impact.
Signed-off-by: Aneesh Kumar K.V
---
.../include/asm/book3s/64/tlbflush-radix.h| 2 +
arch/powerpc/mm/book3s64/radix_hugetlbpage.c | 8 +++-
arch/powerpc/mm/book3s64/radix_tlb.c | 44 ---
3 files changed
Architectures like ppc64 support faster mremap only with radix
translation. Hence allow a runtime check w.r.t support for fast mremap.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/include/asm/tlb.h | 6 ++
mm/mremap.c| 15 ++-
2 files changed, 20
test robot
* Address review feedback.
Changes from v2:
* switch from using mmu_gather to flush_pte_tlb_pwc_range()
Changes from v1:
* Rebase to recent upstream
* Fix build issues with tlb_gather_mmu changes
Aneesh Kumar K.V (3):
mm/mremap: Allow arch runtime override
powerpc/book3s64/mm
p mremap by 20x on large regions")
Fixes: c49dd3401802 ("mm: speedup mremap on 1GB or larger regions")
Link:
https://lore.kernel.org/linux-mm/CAHk-=wgxvr04ebntxqfevontwnp6fdm+oj5vauqxp3s-huw...@mail.gmail.com
Acked-by: Hugh Dickins
Acked-by: Kirill A. Shutemov
Signed-off-by: Aneesh K
-by: Aneesh Kumar K.V
---
mm/mremap.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/mm/mremap.c b/mm/mremap.c
index 97313e316a4d..72fa0491681e 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -26,6 +26,7 @@
#include
#include
+#include
#include "internal.h"
With two level page table don't enable move_normal_pud.
Signed-off-by: Aneesh Kumar K.V
---
mm/mremap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/mremap.c b/mm/mremap.c
index 958ecdc6f29d..97313e316a4d 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -276,7 +276,7
with
CONFIG_HAVE_MOVE_PUD disabled.
Signed-off-by: Aneesh Kumar K.V
---
mm/mremap.c | 79 -
1 file changed, 72 insertions(+), 7 deletions(-)
diff --git a/mm/mremap.c b/mm/mremap.c
index 47c255b60150..958ecdc6f29d 100644
--- a/mm/mremap.c
+++ b/mm
With a large mmap map size, we can overlap with the text area and using
MAP_FIXED results in unmapping that area. Switch to MAP_FIXED_NOREPLACE
and handle the EEXIST error.
Reviewed-by: Kalesh Singh
Signed-off-by: Aneesh Kumar K.V
---
tools/testing/selftests/vm/mremap_test.c | 5 +++--
1 file
Instead of hardcoding 4K page size fetch it using sysconf(). For the performance
measurements test still assume 2M and 1G are hugepage sizes.
Reviewed-by: Kalesh Singh
Signed-off-by: Aneesh Kumar K.V
---
tools/testing/selftests/vm/mremap_test.c | 113 ---
1 file changed, 61
-aneesh.ku...@linux.ibm.com
ppc64 specific changes will be sent as a separate series depending on this
patchset.
Changes from v1:
* cc sta...@kernel.org
* USe the correct config for TRANSPARENT_HUGEPAGE_PUD
* use pud_pgtable instead of pud_page_vaddr
Aneesh Kumar K.V (6):
selftest/mremap_test
-by: Aneesh Kumar K.V
---
arch/alpha/include/asm/pgtable.h | 8 +---
arch/arm/include/asm/pgtable-3level.h| 2 +-
arch/arm64/include/asm/pgtable.h | 4 ++--
arch/ia64/include/asm/pgtable.h | 2 +-
arch/m68k/include/asm/motorola_pgtable.h | 2 +-
arch
-by: Aneesh Kumar K.V
---
arch/arm64/include/asm/pgtable.h| 4 ++--
arch/ia64/include/asm/pgtable.h | 2 +-
arch/mips/include/asm/pgtable-64.h | 4 ++--
arch/powerpc/include/asm/book3s/64/pgtable.h| 5 -
arch/powerpc/include/asm/nohash/64/pgtable-4k.h
On 6/15/21 8:43 AM, David Gibson wrote:
On Mon, Jun 14, 2021 at 10:09:59PM +0530, Aneesh Kumar K.V wrote:
The associativity details of the newly added resourced are collected from
the hypervisor via "ibm,configure-connector" rtas call. Update the numa
distance details of the newly
On 6/15/21 8:31 AM, David Gibson wrote:
On Mon, Jun 14, 2021 at 10:09:57PM +0530, Aneesh Kumar K.V wrote:
No functional change in this patch
As with 1/8 an explanation of what this actually means and therefore
why this is a better name would be very helpful.
how about
On 6/15/21 8:30 AM, David Gibson wrote:
On Mon, Jun 14, 2021 at 10:09:56PM +0530, Aneesh Kumar K.V wrote:
No functional change in this patch.
I think this needs a rationale as to why 'primary_domain_index' is a
better name than 'min_common_depth'. The meaning isn't obvious to me
from either
David Gibson writes:
> On Tue, Jun 15, 2021 at 10:58:42AM +0530, Aneesh Kumar K.V wrote:
>> David Gibson writes:
>>
>> > On Mon, Jun 14, 2021 at 10:10:02PM +0530, Aneesh Kumar K.V wrote:
>> >> Signed-off-by: Daniel Henrique Barboza
&
David Gibson writes:
> On Tue, Jun 15, 2021 at 11:27:50AM +0530, Aneesh Kumar K.V wrote:
>> David Gibson writes:
>>
>> > On Mon, Jun 14, 2021 at 10:10:03PM +0530, Aneesh Kumar K.V wrote:
>> >> FORM2 introduce a concept of secondary domain which is iden
David Gibson writes:
> On Mon, Jun 14, 2021 at 10:10:03PM +0530, Aneesh Kumar K.V wrote:
>> FORM2 introduce a concept of secondary domain which is identical to the
>> conceept of FORM1 primary domain. Use secondary domain as the numa node
>> when using persistent memory dev
David Gibson writes:
> On Mon, Jun 14, 2021 at 10:10:02PM +0530, Aneesh Kumar K.V wrote:
>> Signed-off-by: Daniel Henrique Barboza
>> Signed-off-by: Aneesh Kumar K.V
>> ---
>> Documentation/powerpc/associativity.rst | 139
>> ar
No functional change in this patch.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 38 +++---
1 file changed, 19 insertions(+), 19 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index f2bf98bdcea2..8365b298ec48 100644
Also make related code cleanup that will allow adding FORM2_AFFINITY in
later patches. No functional change in this patch.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/include/asm/firmware.h | 4 +--
arch/powerpc/include/asm/prom.h | 2 +-
arch/powerpc/kernel/prom_init.c
FORM2 introduce a concept of secondary domain which is identical to the
conceept of FORM1 primary domain. Use secondary domain as the numa node
when using persistent memory device. For DAX kmem use the logical domain
id introduced in FORM2. This new numa node
Signed-off-by: Aneesh Kumar K.V
Signed-off-by: Daniel Henrique Barboza
Signed-off-by: Aneesh Kumar K.V
---
Documentation/powerpc/associativity.rst | 139
arch/powerpc/include/asm/firmware.h | 3 +-
arch/powerpc/include/asm/prom.h | 1 +
arch/powerpc/kernel/prom_init.c | 3
This helper is only used with the dispatch trace log collection.
A later patch will add Form2 affinity support and this change helps
in keeping that simpler. Also add a comment explaining we don't expect
the code to be called with FORM0
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c
Instead of updating NUMA distance every time we lookup a node id
from the associativity property, add helpers that can be used
during boot which does this only once. Also remove the distance
update from node id lookup helpers.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 133
or node id from associativity array.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c| 41 +++
arch/powerpc/platforms/pseries/hotplug-cpu.c | 2 +
.../platforms/pseries/hotplug-memory.c| 2 +
arch/powerpc/platforms/pseries/pseries.h
No functional change in this patch
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/numa.c | 20 ++--
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 8365b298ec48..5941da201fa3 100644
--- a/arch/powerpc/mm
ist,src=3,dst=0,val=101 -numa dist,src=3,dst=1,val=121 -numa
dist,src=3,dst=2,val=132 -numa dist,src=3,dst=4,val=255 \
-numa dist,src=4,dst=0,val=255 -numa dist,src=4,dst=1,val=255 -numa
dist,src=4,dst=2,val=255 -numa dist,src=4,dst=3,val=255 \
-object
memory-backend-file,id=memnvdimm1,preall
On 6/14/21 8:25 PM, kernel test robot wrote:
Greeting,
FYI, we noticed a -29.4% regression of vm-scalability.throughput due to commit:
commit: ecf8443e51a862b261313c2319ab4e4aed9e6b7e ("[PATCH v7 02/11] mm/mremap: Fix
race between MOVE_PUD mremap and pageout")
url:
On 6/13/21 4:20 PM, Matthew Wilcox wrote:
On Sun, Jun 13, 2021 at 02:36:13PM +0530, Aneesh Kumar K.V wrote:
IIUC the reason why we do have pmd_pgtable() is that pgtable_t type
is arch dependent. On some architecture it is pte_t * and on the other
struct page *. The reason being highmem
Linus Torvalds writes:
> On Thu, Jun 10, 2021 at 1:36 AM Aneesh Kumar K.V
> wrote:
>>
>> @@ -306,8 +306,7 @@ static bool move_normal_pud(struct vm_area_struct *vma,
>> unsigned long old_addr,
>>
>> VM_BUG_ON(!pud_none(*new_pud
in
__radix_flush_tlb_range_psize
which was added by commit e12d6d7d46a6 ("powerpc/mm/radix: mark
__radix__flush_tlb_range_psize() as __always_inline")
Reviewed-by: Christophe Leroy
Acked-by: Michael Ellerman
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/mm/book3s64/radix_
regions")
Fixes: c49dd3401802 ("mm: speedup mremap on 1GB or larger regions")
Link:
https://lore.kernel.org/linux-mm/CAHk-=wgxvr04ebntxqfevontwnp6fdm+oj5vauqxp3s-huw...@mail.gmail.com
Acked-by: Hugh Dickins
Acked-by: Kirill A. Shutemov
Signed-off-by: Aneesh Kumar K.V
---
mm/mremap
-by: Aneesh Kumar K.V
---
mm/mremap.c | 7 +++
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/mm/mremap.c b/mm/mremap.c
index 795a7d628b53..dacfa9111ab1 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -26,6 +26,7 @@
#include
#include
+#include
#include "internal.h"
with
CONFIG_HAVE_MOVE_PUD disabled.
Signed-off-by: Aneesh Kumar K.V
---
mm/mremap.c | 80 -
1 file changed, 73 insertions(+), 7 deletions(-)
diff --git a/mm/mremap.c b/mm/mremap.c
index 47c255b60150..92ab7d24a587 100644
--- a/mm/mremap.c
+++ b/mm
With two level page table don't enable move_normal_pud.
Signed-off-by: Aneesh Kumar K.V
---
mm/mremap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/mremap.c b/mm/mremap.c
index 92ab7d24a587..795a7d628b53 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -276,7 +276,7
With a large mmap map size, we can overlap with the text area and using
MAP_FIXED results in unmapping that area. Switch to MAP_FIXED_NOREPLACE
and handle the EEXIST error.
Reviewed-by: Kalesh Singh
Signed-off-by: Aneesh Kumar K.V
---
tools/testing/selftests/vm/mremap_test.c | 5 +++--
1 file
flush changes.
Aneesh Kumar K.V (6):
selftest/mremap_test: Update the test to handle pagesize other than 4K
selftest/mremap_test: Avoid crash with static build
mm/mremap: Convert huge PUD move to separate helper
mm/mremap: Don't enable optimized PUD move if page table levels is 2
mm/mremap
Instead of hardcoding 4K page size fetch it using sysconf(). For the performance
measurements test still assume 2M and 1G are hugepage sizes.
Reviewed-by: Kalesh Singh
Signed-off-by: Aneesh Kumar K.V
---
tools/testing/selftests/vm/mremap_test.c | 113 ---
1 file changed, 61
On 6/8/21 3:12 PM, Kirill A. Shutemov wrote:
On Tue, Jun 08, 2021 at 01:22:23PM +0530, Aneesh Kumar K.V wrote:
Hi Hugh,
Hugh Dickins writes:
On Mon, 7 Jun 2021, Aneesh Kumar K.V wrote:
CPU 1 CPU 2 CPU 3
mremap(old_addr
Hi Hugh,
Hugh Dickins writes:
> On Mon, 7 Jun 2021, Aneesh Kumar K.V wrote:
>
>> CPU 1CPU 2
>> CPU 3
>>
>> mremap(old_addr, new_addr) page_shrinker/try_to_unmap_one
&
On 6/7/21 3:40 PM, Nick Piggin wrote:
On Monday, 7 June 2021, Aneesh Kumar K.V
wrote: This patchset enables MOVE_PMD/MOVE_PUD support on power. This
requires the platform to support updating higher-level page tables
without updating page table ZjQcmQRYFpfptBannerStart
This Message Is From
-aligned
mremap time:63886ns
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/platforms/Kconfig.cputype | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/platforms/Kconfig.cputype
b/arch/powerpc/platforms/Kconfig.cputype
index f998e655b570..be8ceb5bece4 100644
--- a/arch
memory access
didn't show any observable performance impact.
Signed-off-by: Aneesh Kumar K.V
---
.../include/asm/book3s/64/tlbflush-radix.h| 2 +
arch/powerpc/mm/book3s64/radix_hugetlbpage.c | 8 +++-
arch/powerpc/mm/book3s64/radix_tlb.c | 44 ---
3 files changed
Architectures like ppc64 support faster mremap only with radix
translation. Hence allow a runtime check w.r.t support for fast mremap.
Signed-off-by: Aneesh Kumar K.V
---
arch/powerpc/include/asm/tlb.h | 6 ++
mm/mremap.c| 15 ++-
2 files changed, 20
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