.org
Cc: x...@kernel.org
Cc: linux...@kvack.org
Cc: linux-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Vineet Gupta#arc
Signed-off-by: Anshuman Khandual
---
mm/debug_vm_pgtable.c | 46 ++-
1 file changed, 45 insertions(+), 1 deletion(-)
: linuxppc-...@lists.ozlabs.org
Cc: linux-s...@vger.kernel.org
Cc: linux-ri...@lists.infradead.org
Cc: x...@kernel.org
Cc: linux...@kvack.org
Cc: linux-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Vineet Gupta#arc
Suggested-by: Catalin Marinas
Signed-off-by: Anshuman Khandua
nel.org
Cc: linux-ri...@lists.infradead.org
Cc: x...@kernel.org
Cc: linux...@kvack.org
Cc: linux-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Vineet Gupta#arc
Reviewed-by: Zi Yan
Suggested-by: Catalin Marinas
Signed-off-by: Anshuman Khandual
---
mm/debug_vm_pgtab
g
Cc: linuxppc-...@lists.ozlabs.org
Cc: linux-s...@vger.kernel.org
Cc: linux-ri...@lists.infradead.org
Cc: x...@kernel.org
Cc: linux...@kvack.org
Cc: linux-...@vger.kernel.org
Cc: linux-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (4):
mm/debug_vm_pgtable: Add tests validatin
gt; Cc: Will Deacon
> Cc: Thomas Gleixner
> Cc: Ingo Molnar
> Cc: Borislav Petkov
> Cc: H. Peter Anvin
> Cc: Mike Kravetz
> Cc: Mike Rapoport
> Cc: Andrew Morton
> Cc: Anshuman Khandual
> Cc: Jonathan Cameron
> Signed-off-by: Barry Song
> ---
> -v2:
On 07/09/2020 11:41 AM, kernel test robot wrote:
> [ 94.349598] BUG: unable to handle page fault for address: ed10a7ffddff
> [ 94.351039] #PF: supervisor read access in kernel mode
> [ 94.352172] #PF: error_code(0x) - not-present page
> [ 94.353256] PGD 43ffed067 P4D 43ffed067
.
>>>>
>>>> a. I reported it very early and should have been Cc-ed.
>>>>
>>>> b. A patch that applies to mmotm or linux-next would have been better
>>>> than a full replacement patch.
>>>>
>>>> c. I tried replacing
On 07/09/2020 09:04 PM, Randy Dunlap wrote:
> Hi,
>
> I have a few comments on this.
>
> a. I reported it very early and should have been Cc-ed.
I should have Cc-ed you on this V4 patch, sorry about that.
>
> b. A patch that applies to mmotm or linux-next would have been better
> than a
Wilcox
Cc: Zi Yan
Cc: John Hubbard
Cc: Naoya Horiguchi
Cc: Andrew Morton
Cc: linux-...@vger.kernel.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Zi Yan
Signed-off-by: Anshuman Khandual
---
Applies on 5.8-rc4.
Changes in V4:
- Changed THP_MIGRATION_FAILURE
On 07/09/2020 09:17 AM, Randy Dunlap wrote:
> On 7/8/20 7:29 PM, Andrew Morton wrote:
>> The mm-of-the-moment snapshot 2020-07-08-19-28 has been uploaded to
>>
>>http://www.ozlabs.org/~akpm/mmotm/
>>
>> mmotm-readme.txt says
>>
>> README for mm-of-the-moment:
>>
>>
On 07/09/2020 06:44 AM, Tian Tao wrote:
> It is not possible to increase size with vmalloc= in arm64
Small nit. s/in arm64/on arm64/
In fact "vmalloc=" cmdline option is not available on many
platforms. Hence it is not something arm64 specific here, it is
a general problem.
> architecture
On 07/06/2020 08:26 AM, Anshuman Khandual wrote:
> This series enables vmemmap backing memory allocation from device memory
> ranges on arm64. But before that, it enables vmemmap_populate_basepages()
> and vmemmap_alloc_block_buf() to accommodate struct vmem_altmap based
> alocat
On 07/08/2020 05:31 AM, John Hubbard wrote:
> On 2020-07-06 17:06, Anshuman Khandual wrote:
>> Add following new vmstat events which will help in validating THP migration
>> without split. Statistics reported through these new VM events will help in
>> performan
On 07/08/2020 06:37 AM, Randy Dunlap wrote:
> From: Randy Dunlap
>
> Make the tables be presented as tables in the generated output files
> (the line drawing did not present well).
>
> Signed-off-by: Randy Dunlap
> Cc: Jonathan Corbet
> Cc: linux-...@vger.kernel.org
On 07/08/2020 07:36 AM, Randy Dunlap wrote:
> On 7/7/20 6:22 PM, Anshuman Khandual wrote:
>>
>>
>> On 07/08/2020 06:37 AM, Randy Dunlap wrote:
>>> From: Randy Dunlap
>>>
>>> Make the tables be presented as tables in the generated output
gigantic hugepages
> using cma")
I would not call this a "Fix". The current code still works, though in
a sub optimal manner.
> Cc: Roman Gushchin
> Cc: Catalin Marinas
> Cc: Will Deacon
> Cc: Thomas Gleixner
> Cc: Ingo Molnar
> Cc: Borislav Petkov
>
On 07/08/2020 06:37 AM, Randy Dunlap wrote:
> From: Randy Dunlap
>
> Make the tables be presented as tables in the generated output files
> (the line drawing did not present well).
>
> Signed-off-by: Randy Dunlap
> Cc: Jonathan Corbet
> Cc: linux-...@vger.kernel.org
: Catalin Marinas
Cc: Will Deacon
Cc: Suzuki K Poulose
Cc: Mark Brown
Cc: Mark Rutland
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
Applies on 5.8-rc4.
Changes in V3:
- Moved around some local
On 07/07/2020 02:43 PM, Tian Tao wrote:
> It is not possible to increase size with vmalloc= in arm64
> architecture and it will mislead.however vmalloc return failure
> is a rare occurrence in 'many architectures including arm64'.
But there is a chance that vmalloc() might work on
On 07/06/2020 02:33 PM, David Hildenbrand wrote:
>> return 0;
>> @@ -1505,7 +1505,7 @@ int __meminit vmemmap_populate(unsigned long start,
>> unsigned long end, int node,
>> int err;
>>
>> if (end - start < PAGES_PER_SECTION * sizeof(struct page))
>> -err =
Horiguchi
Cc: Andrew Morton
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Zi Yan
Signed-off-by: Anshuman Khandual
---
Changes in V3:
- Formatted new events documentation with 'fmt' tool per Matthew
- Made events universally available i.e dropped ARCH_ENABLE_THP_MIGRATION
On 07/02/2020 05:41 PM, Catalin Marinas wrote:
> Hi Anshuman,
Hi Catalin,
>
> On Mon, Jun 15, 2020 at 06:45:17PM +0530, Anshuman Khandual wrote:
>> --- a/arch/arm64/include/asm/pgtable.h
>> +++ b/arch/arm64/include/asm/pgtable.h
>> @@ -353,15 +353,92 @@ static in
Marinas
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 58 +
1 file changed, 38 insertions(+), 20 deletions(-)
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 9c08d1882106..51a1b0e886ff 100644
--- a/arch/arm64/mm/mmu.c
+++ b
nel.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (3):
mm/sparsemem: Enable vmem_altmap support in vmemmap_populate_basepages()
mm/sparsemem: Enable vmem_altmap support in vmemmap_alloc_block_buf()
arm64/mm: Enable vmem_altmap support
ead.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Jia He
Suggested-by: Robin Murphy
Signed-off-by: Anshuman Khandual
---
Documentation/vm/memory-model.rst | 2 +-
arch/arm64/mm/mmu.c | 2 +-
arch/powerpc/mm/init_64.c | 4
rnel@vger.kernel.org
Tested-by: Jia He
Acked-by: Will Deacon
Acked-by: Catalin Marinas
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 2 +-
arch/ia64/mm/discontig.c | 2 +-
arch/riscv/mm/init.c | 2 +-
arch/x86/mm/init_64.c| 6 +++---
include/linux/mm.h | 5 +++--
On 07/06/2020 06:18 AM, Anshuman Khandual wrote:
> This series adds some more arch page table helper validation tests which
> are related to core and advanced memory functions. This also creates a
> documentation, enlisting expected semantics for all page table helpers as
> sugge
g
Cc: linuxppc-...@lists.ozlabs.org
Cc: linux-s...@vger.kernel.org
Cc: linux-ri...@lists.infradead.org
Cc: x...@kernel.org
Cc: linux...@kvack.org
Cc: linux-...@vger.kernel.org
Cc: linux-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (4):
mm/debug_vm_pgtable: Add tests validatin
Cc: linux-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Vineet Gupta#arc
Signed-off-by: Anshuman Khandual
---
mm/debug_vm_pgtable.c | 46 ++-
1 file changed, 45 insertions(+), 1 deletion(-)
diff --git a/mm/debug_vm_pgta
c: linux-s...@vger.kernel.org
Cc: linux-ri...@lists.infradead.org
Cc: x...@kernel.org
Cc: linux...@kvack.org
Cc: linux-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Vineet Gupta#arc
Suggested-by: Catalin Marinas
Signed-off-by: Anshuman Khandual
---
mm/debug_vm_pgtab
.org
Cc: x...@kernel.org
Cc: linux...@kvack.org
Cc: linux-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Vineet Gupta#arc
Reviewed-by: Zi Yan
Suggested-by: Catalin Marinas
Signed-off-by: Anshuman Khandual
---
mm/debug_vm_pgtable.c | 302
Cc: linux...@kvack.org
Cc: linux-...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Mike Rapoport
Suggested-by: Mike Rapoport
Signed-off-by: Anshuman Khandual
---
Documentation/vm/arch_pgtable_helpers.rst | 258 ++
mm/debug_vm_pgtable.c | 6 +
2 fil
On 07/02/2020 11:04 PM, Catalin Marinas wrote:
> On Wed, May 27, 2020 at 08:33:35AM +0530, Anshuman Khandual wrote:
>> These are remaining patches from V4 series which had some pending reviews
>> from Suzuki (https://patchwork.kernel.org/cover/11557333/). Also dropped
On 07/02/2020 07:37 PM, Catalin Marinas wrote:
> On Thu, Jun 18, 2020 at 06:45:29AM +0530, Anshuman Khandual wrote:
>> There are many instances where vmemap allocation is often switched between
>> regular memory and device memory just based on whether altm
Cc: James Morse
Cc: Suzuki K Poulose
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
arch/arm64/include/asm/sysreg.h | 28 +
arch/arm64/kernel/cpufeature.c | 53
-by: Will Deacon
Reviewed-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
arch/arm64/include/asm/sysreg.h | 7 +++
arch/arm64/kernel/cpufeature.c | 7 +++
2 files changed, 14 insertions(+)
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 889fa7729719
Reviewed-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
arch/arm64/include/asm/sysreg.h | 4
arch/arm64/kernel/cpufeature.c | 4
2 files changed, 8 insertions(+)
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 2e36dfde2570..889fa7729719 100644
K Poulose
Signed-off-by: Anshuman Khandual
---
arch/arm64/include/asm/sysreg.h | 3 +++
arch/arm64/kernel/cpufeature.c | 3 +++
2 files changed, 6 insertions(+)
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 463175f80341..2e36dfde2570 100644
--- a/arch
FTR_STRICT -> FTR_NONSTRICT) as 64 bit registers per
Will
- Changed ID_PFR0.CSV2 (FTR_STRICT -> FTR_NONSTRICT) as 64 bit registers per
Will
- Changed some commit messages
Changes in V1:
(https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=234093)
Anshuman Khandual (4):
: Catalin Marinas
Cc: Will Deacon
Cc: Suzuki K Poulose
Cc: Mark Brown
Cc: Mark Rutland
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
Applies on 5.8-rc3.
Changes in V2:
- Replaced WARN_ON() with WARN() dropping the conditional block
and hence cannot contain stub
for the inverse config i.e !(CONFIG_HUGETLB_PAGE && CONFIG_CMA).
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Mark Rutland
Cc: Mike Kravetz
Cc: Barry Song
Cc: Andrew Morton
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by:
On 06/24/2020 08:43 AM, Anshuman Khandual wrote:
>
>
> On 06/15/2020 09:07 AM, Anshuman Khandual wrote:
>> This series adds some more arch page table helper validation tests which
>> are related to core and advanced memory functions. This also creates a
>> docume
On 06/29/2020 04:12 PM, Suzuki K Poulose wrote:
> On 06/16/2020 03:25 AM, Anshuman Khandual wrote:
>> arm64_feature_bits for a register in arm64_ftr_regs[] are in a descending
>> order as per their shift values. Validate that these features bits are
>> defined correct
On 06/27/2020 12:48 PM, Christophe Leroy wrote:
> Le 15/06/2020 à 05:37, Anshuman Khandual a écrit :
>> This adds new tests validating for these following arch advanced page table
>> helpers. These tests create and test specific mapping types at various page
>>
On 06/27/2020 12:56 PM, Christophe Leroy wrote:
>
>
> Le 15/06/2020 à 05:37, Anshuman Khandual a écrit :
>> This adds new tests validating for these following arch advanced page table
>> helpers. These tests create and test specific mapping types at various page
>
-by: Mark Rutland
Signed-off-by: Anshuman Khandual
---
Applies on 5.8-rc3.
Changes in V3:
- Updated the commit message per Mark
Changes in V2: (https://patchwork.kernel.org/patch/11619601/)
- Replaced __initcall() directly with device_initcall()
- Added static for dump_kernel_offset()
Changes
On 06/24/2020 08:10 PM, Alexander Gordeev wrote:
> On Wed, Jun 24, 2020 at 01:48:08PM +0200, Gerald Schaefer wrote:
>> On Wed, 24 Jun 2020 13:05:39 +0200
>> Alexander Gordeev wrote:
>>
>>> On Wed, Jun 24, 2020 at 08:43:10AM +0530, Anshuman Khandual wrote:
>&
Cc: Andrew Morton
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
Applies on 5.8-rc3.
Changes in V2:
- Moved arm64_hugetlb_cma_reserve() stub and declaration near call site
Changes in V1: (https://patchwork.kernel.org/patch/11619839
On 06/15/2020 09:07 AM, Anshuman Khandual wrote:
> This series adds some more arch page table helper validation tests which
> are related to core and advanced memory functions. This also creates a
> documentation, enlisting expected semantics for all page table helpers as
> sugge
Cc: Andrew Morton
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
Applies on 5.8-rc2.
arch/arm64/include/asm/hugetlb.h | 8
arch/arm64/mm/hugetlbpage.c | 38 ++
arch/arm64/mm/init.c
() instead
of __initcall().
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Steve Capper
Cc: Mark Rutland
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
Applies on 5.8-rc2.
Changes in V2:
- Replaced __initcall() directly with device_initcall
platforms after applying the previous
series which adds ptep_get() and a follow up patch.
https://patchwork.kernel.org/project/linux-mm/list/?series=302949
https://patchwork.kernel.org/patch/11611929/
Build tested on s390 and arc platforms as well.
Reviewed-by: Anshuman Khandual
On 06/18/2020 02:26 PM, Mike Rapoport wrote:
> On Thu, Jun 18, 2020 at 06:45:27AM +0530, Anshuman Khandual wrote:
>> This series enables vmemmap backing memory allocation from device memory
>> ranges on arm64. But before that, it enables vmemmap_pop
rnel@vger.kernel.org
Tested-by: Jia He
Acked-by: Will Deacon
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 2 +-
arch/ia64/mm/discontig.c | 2 +-
arch/riscv/mm/init.c | 2 +-
arch/x86/mm/init_64.c| 6 +++---
include/linux/mm.h | 5 +++--
mm/sparse
ckerras
Cc: Michael Ellerman
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-i...@vger.kernel.org
Cc: linux-ri...@lists.infradead.org
Cc: x...@kernel.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (3):
mm/sparsemem: Enable
ton
Cc: x...@kernel.org
Cc: linux-arm-ker...@lists.infradead.org
Cc: linuxppc-...@lists.ozlabs.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Jia He
Suggested-by: Robin Murphy
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 3 ++-
arch/powerpc/mm/init
-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 58 +
1 file changed, 38 insertions(+), 20 deletions(-)
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 7ca21adb4412..f2ad5b94a235 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -759,15
;
>
> arm64_numa_init();
> +
> +#ifdef CONFIG_ARM64_4K_PAGES
> + hugetlb_cma_reserve(PUD_SHIFT - PAGE_SHIFT);
> +#endif
arm64_numa_init() calls numa_init() which initializes node_online_map
that gets used in hugetlb_cma_reserve() while allocating required CMA
size across online nodes.
Reviewed-by: Anshuman Khandual
; url:
> https://github.com/0day-ci/linux/commits/Anshuman-Khandual/arm64-panic-Unify-all-three-existing-notifier-blocks/20200616-11
> base: https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git
> for-next/core
> config: arm64-allyesconfig (attached as .config)
&g
On 06/16/2020 01:09 PM, David Hildenbrand wrote:
> On 16.06.20 06:08, Anshuman Khandual wrote:
>> zero_pfn variable is required whether __HAVE_COLOR_ZERO_PAGE is enabled
>
> Why is that relevant for this patch?
That just states how it is organized right now wrt __HAVE_
On 06/16/2020 09:38 AM, Anshuman Khandual wrote:
> zero_pfn variable is required whether __HAVE_COLOR_ZERO_PAGE is enabled
> or not. Also it should not really be declared individually in all functions
> where it gets used. Just move the declaration outside, which also makes it
&g
-a...@vger.kernel.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
Applies on 5.8-rc1. If the earlier motivation was to hide zero_pfn from
general visibility, we could just put in a comment and update the commit
message that my_zero_pfn() should always be used
Drop these unused symbols i.e PTE_TYPE_FAULT and PMD_TYPE_FAULT.
Cc: Russell King
Cc: Thomas Gleixner
Cc: Allison Randal
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
Applies on 5.8-rc1. Just found by code inspection and built
: Steve Capper
Cc: Mark Rutland
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
Applies on 5.8-rc1.
arch/arm64/include/asm/cpufeature.h | 1 +
arch/arm64/include/asm/memory.h | 1 +
arch/arm64/kernel/cpufeature.c | 15
: Catalin Marinas
Cc: Will Deacon
Cc: Suzuki K Poulose
Cc: Mark Brown
Cc: Mark Rutland
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
Applies on 5.8-rc1.
arch/arm64/kernel/cpufeature.c | 45 +++---
1 file
: Zi Yan
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (2):
arm64/mm: Change THP helpers per generic memory semantics
arm64/mm: Enable THP migration
arch/arm64/Kconfig | 4 ++
arch/arm64/include/asm/pgtable.h | 102
Cc: Will Deacon
Cc: Mark Rutland
Cc: Marc Zyngier
Cc: Suzuki Poulose
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
arch/arm64/Kconfig | 4
arch/arm64/include/asm/pgtable.h | 10 ++
2 files changed, 14
k Rutland
Cc: Marc Zyngier
Cc: Suzuki Poulose
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
arch/arm64/include/asm/pgtable.h | 92
arch/arm64/mm/hugetlbpage.c | 2 +-
arch/arm64
Cc: linux...@kvack.org
Cc: linux-...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Suggested-by: Mike Rapoport
Signed-off-by: Anshuman Khandual
---
Documentation/vm/arch_pgtable_helpers.rst | 258 ++
mm/debug_vm_pgtable.c | 6 +
2 files changed, 264 insertions(
ger.kernel.org
Anshuman Khandual (4):
mm/debug_vm_pgtable: Add tests validating arch helpers for core MM features
mm/debug_vm_pgtable: Add tests validating advanced arch page table helpers
mm/debug_vm_pgtable: Add debug prints for individual tests
Documentation/mm: Add descriptions for arch page
c: linux-s...@vger.kernel.org
Cc: linux-ri...@lists.infradead.org
Cc: x...@kernel.org
Cc: linux...@kvack.org
Cc: linux-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Suggested-by: Catalin Marinas
Signed-off-by: Anshuman Khandual
---
mm/debug_vm_pgtable.c | 306
Cc: linux-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
mm/debug_vm_pgtable.c | 46 ++-
1 file changed, 45 insertions(+), 1 deletion(-)
diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c
index e3
.org
Cc: x...@kernel.org
Cc: linux...@kvack.org
Cc: linux-a...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Zi Yan
Suggested-by: Catalin Marinas
Signed-off-by: Anshuman Khandual
---
mm/debug_vm_pgtable.c | 302 +-
1 file changed, 301 insert
On 06/05/2020 07:54 PM, Zi Yan wrote:
> On 4 Jun 2020, at 23:35, Anshuman Khandual wrote:
>
>> On 06/04/2020 10:19 PM, Zi Yan wrote:
>>> On 4 Jun 2020, at 12:36, Matthew Wilcox wrote:
>>>
>>>> On Thu, Jun 04, 2020 at 09:51:10AM -0400, Zi Yan wrote:
&g
On 06/04/2020 10:19 PM, Zi Yan wrote:
> On 4 Jun 2020, at 12:36, Matthew Wilcox wrote:
>
>> On Thu, Jun 04, 2020 at 09:51:10AM -0400, Zi Yan wrote:
>>> On 4 Jun 2020, at 7:34, Matthew Wilcox wrote:
>>>> On Thu, Jun 04, 2020 at 09:30:45AM +0530, Anshuman K
cases.
Cc: Naoya Horiguchi
Cc: Zi Yan
Cc: John Hubbard
Cc: Andrew Morton
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
[hughd: fixed oops on NULL newpage]
Signed-off-by: Anshuman Khandual
---
Changes in V2:
- Dropped PMD reference both from code and commit message per Matthew
On 06/03/2020 08:27 AM, Matthew Wilcox wrote:
> On Wed, Jun 03, 2020 at 06:56:57AM +0530, Anshuman Khandual wrote:
>> On 06/02/2020 08:31 PM, Matthew Wilcox wrote:
>>> On Fri, May 22, 2020 at 09:04:04AM +0530, Anshuman Khandual wrote:
>>>> This adds the fol
On 06/02/2020 08:22 PM, Daniel Jordan wrote:
> On Mon, Jun 01, 2020 at 09:48:09PM -0700, John Hubbard wrote:
>> However, the fact that this is under discussion hints at the need for a
>> bit of documentation help. What do you think about adding some notes about
>> all of this to, say,
On 06/02/2020 08:31 PM, Matthew Wilcox wrote:
> On Fri, May 22, 2020 at 09:04:04AM +0530, Anshuman Khandual wrote:
>> This adds the following two new VM events which will help in validating PMD
>> based THP migration without split. Statistics reported through these even
On 06/02/2020 10:18 AM, John Hubbard wrote:
> On 2020-06-01 21:20, Anshuman Khandual wrote:
> ...
>>> also important: maybe this patch should also be tracking other causes
>>> of THP PMD migration failure, in order to get a truer accounting of the
>>> situatio
On 06/02/2020 08:50 AM, John Hubbard wrote:
> On 2020-06-01 09:57, Daniel Jordan wrote:
>> Hi Anshuman,
>>
>> On Fri, May 22, 2020 at 09:04:04AM +0530, Anshuman Khandual wrote:
>>> This adds the following two new VM events which will help in validating PMD
>>
On 05/27/2020 05:55 PM, Will Deacon wrote:
> On Wed, 27 May 2020 15:34:36 +0530, Anshuman Khandual wrote:
>> There is no way to proceed when requested register could not be searched in
>> arm64_ftr_reg[]. Requesting for a non present register would be an error as
>>
@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
Changes in V3:
- Early return on register search failure in some callers per Will
- Return 0, when search fails in check_update_ftr_reg() per Will
Changes in V2: (https://patchwork.kernel.org/patch/11570575/)
- Added get_arm64_ftr_reg_nowarn
-off-by: Anshuman Khandual
---
arch/arm64/include/asm/sysreg.h | 4
arch/arm64/kernel/cpufeature.c | 4
2 files changed, 8 insertions(+)
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index cf983d03aa4c..a798bb9c0845 100644
--- a/arch/arm64/include/asm
-by: Anshuman Khandual
---
arch/arm64/include/asm/sysreg.h | 3 +++
arch/arm64/kernel/cpufeature.c | 3 +++
2 files changed, 6 insertions(+)
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index fa9d02ca4b25..cf983d03aa4c 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b
Cc: James Morse
Cc: Suzuki K Poulose
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
arch/arm64/include/asm/sysreg.h | 28 +
arch/arm64/kernel/cpufeature.c | 53
-by: Will Deacon
Reviewed-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
arch/arm64/include/asm/sysreg.h | 7 +++
arch/arm64/kernel/cpufeature.c | 7 +++
2 files changed, 14 insertions(+)
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index a798bb9c0845
ill
- Changed ID_PFR0.CSV2 (FTR_STRICT -> FTR_NONSTRICT) as 64 bit registers per
Will
- Changed some commit messages
Changes in V1:
(https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=234093)
Anshuman Khandual (4):
arm64/cpufeature: Add remaining feature bits in ID_AA
On 05/27/2020 01:16 AM, Will Deacon wrote:
> On Tue, May 26, 2020 at 04:01:35PM +0100, Catalin Marinas wrote:
>> On Tue, May 26, 2020 at 07:09:13PM +0530, Anshuman Khandual wrote:
>>> @@ -632,8 +654,6 @@ static void __init init_cpu_ftr_reg(u32 sys_reg, u64
>>>
On 05/26/2020 07:34 PM, Suzuki K Poulose wrote:
> On 05/26/2020 02:39 PM, Anshuman Khandual wrote:
>> There is no way to proceed when requested register could not be searched in
>> arm64_ftr_reg[]. Requesting for a non present register would be an error as
>> well. He
@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
Changes in V2:
- Added get_arm64_ftr_reg_nowarn() per Will
- read_sanitised_ftr_reg() returns 0 when register search fails per Catalin
Changes in V1: (https://patchwork.kernel.org/patch/11559083/)
arch/arm64/kernel/cpufeature.c | 42
Hello Zhenyu,
On 05/25/2020 06:22 PM, Zhenyu Ye wrote:
> diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
> index c4ac0ac25a00..477d84ba1056 100644
> --- a/arch/arm64/include/asm/sysreg.h
> +++ b/arch/arm64/include/asm/sysreg.h
> @@ -725,6 +725,7 @@
>
> /*
On 05/21/2020 08:49 PM, Will Deacon wrote:
> On Tue, 19 May 2020 15:10:37 +0530, Anshuman Khandual wrote:
>> This series is primarily motivated from an adhoc list from Mark Rutland
>> during our previous ID_ISAR6 discussion [1]. The current proposal also
>> accommodates
On 05/21/2020 10:29 PM, Catalin Marinas wrote:
> On Thu, May 21, 2020 at 05:22:15PM +0100, Will Deacon wrote:
>> On Thu, May 21, 2020 at 08:45:38AM +0530, Anshuman Khandual wrote:
>>> On 05/20/2020 11:09 PM, Will Deacon wrote:
>>>> On Wed, May 20, 2020 at 04:47:11P
On 05/19/2020 07:02 PM, Suzuki K Poulose wrote:
> On 05/19/2020 10:40 AM, Anshuman Khandual wrote:
>> Enable EVC, FGT, EXS, TGRAN4_2, TGRAN64_2 and TGRAN16_2 features bits in
>> ID_AA64MMFR0 register as per ARM DDI 0487F.a specification.
>>
>> Cc: Catalin Marinas
On 05/19/2020 07:14 PM, Suzuki K Poulose wrote:
> On 05/19/2020 10:40 AM, Anshuman Khandual wrote:
>> Enable ETS, TWED, XNX and SPECSEI features bits in ID_AA64MMFR1 register as
>> per ARM DDI 0487F.a specification.
>>
>> Cc: Catalin Marinas
>> Cc: Will D
On 05/20/2020 07:27 PM, Suzuki K Poulose wrote:
> On 05/19/2020 10:40 AM, Anshuman Khandual wrote:
>> Enable MTPMU and TRACEFILT features bits in ID_AA64DFR0 register as per ARM
>> DDI 0487F.a specification.
>>
>> Cc: Catalin Marinas
>> Cc: Will Deacon
>
Cc: Andrew Morton
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
[hughd: fixed oops on NULL newpage]
Signed-off-by: Anshuman Khandual
---
Changes in V1:
- Changed function name as thp_pmd_migration_success() per John
- Folded in a fix (https://patchwork.kernel.org/patch/11563009/) from
On 05/21/2020 07:19 PM, Hugh Dickins wrote:
> Fix 5.7-rc6-mm1 page migration crash in unmap_and_move(): when the
> page to be migrated has been freed from under us, that is considered
> a MIGRATEPAGE_SUCCESS, but no newpage has been allocated (and I don't
> think it would ever need to be
On 05/20/2020 12:45 PM, HORIGUCHI NAOYA(堀口 直也) wrote:
> On Mon, May 18, 2020 at 12:12:36PM +0530, Anshuman Khandual wrote:
>> This adds the following two new VM events which will help in validating PMD
>> based THP migration without split. Statistics reported through these even
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