On 2/11/21 12:30 AM, Mathieu Poirier wrote:
> On Wed, Jan 27, 2021 at 02:25:35PM +0530, Anshuman Khandual wrote:
>> Trace Buffer Extension (TRBE) implements a trace buffer per CPU which is
>> accessible via the system registers. The TRBE supports different addressing
>>
On 2/12/21 12:30 AM, Mathieu Poirier wrote:
> On Wed, Jan 27, 2021 at 02:25:35PM +0530, Anshuman Khandual wrote:
>> Trace Buffer Extension (TRBE) implements a trace buffer per CPU which is
>> accessible via the system registers. The TRBE supports different addressing
>>
On 2/11/21 5:23 PM, Will Deacon wrote:
> On Fri, Feb 05, 2021 at 06:55:53PM +, Will Deacon wrote:
>> On Wed, Feb 03, 2021 at 09:20:39AM +0530, Anshuman Khandual wrote:
>>> On 2/2/21 6:26 PM, David Hildenbrand wrote:
>>>> On 02.02.21 13:51, Will Deacon wrote:
&g
on certain platforms like arm64. Lets prevent
the scenario by first checking HUGETLB_PAGE_ORDER against MAX_ORDER, before
its assignment as pageblock_order.
Cc: Andrew Morton
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
mm/page_alloc.c | 2 +-
1 file
Signed-off-by: Anshuman Khandual
---
arch/arm64/Kconfig | 4
1 file changed, 4 insertions(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index f39568b28ec1..8e3a5578f663 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1909,6 +1909,10 @@ config ARCH_ENABLE_THP_MIGRATION
guous.c:402:35: note: in expansion of macro ‘max’
phys_addr_t align = PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order);
Cc: Christoph Hellwig
Cc: Marek Szyprowski
Cc: Robin Murphy
Cc: io...@lists.linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
d.org
Cc: io...@lists.linux-foundation.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Changes in V1:
- Rebased on 5.11-rc7
- Dropped the RFC
Changes in RFC:
https://lore.kernel.org/linux-mm/1612422084-30429-1-git-send-email-anshuman.khand...@arm.com/
Anshuman Khandual (3):
mm/pag
On 2/9/21 11:09 PM, Mathieu Poirier wrote:
> On Fri, Feb 05, 2021 at 10:53:30AM -0700, Mathieu Poirier wrote:
>> On Wed, Jan 27, 2021 at 02:25:35PM +0530, Anshuman Khandual wrote:
>>> Trace Buffer Extension (TRBE) implements a trace buffer per CPU which is
>>>
On 2/4/21 12:31 PM, Anshuman Khandual wrote:
> The following warning gets triggered while trying to boot a 64K page size
> without THP config kernel on arm64 platform.
>
> WARNING: CPU: 5 PID: 124 at mm/vmstat.c:1080 __fragmentation_index+0xa4/0xc0
> Modules linked in:
> CP
On 2/5/21 11:23 PM, Mathieu Poirier wrote:
> On Wed, Jan 27, 2021 at 02:25:35PM +0530, Anshuman Khandual wrote:
>> Trace Buffer Extension (TRBE) implements a trace buffer per CPU which is
>> accessible via the system registers. The TRBE supports different addressing
>>
On 2/5/21 2:50 PM, Vladimir Murzin wrote:
> Hi Anshuman,
>
> On 2/5/21 4:10 AM, Anshuman Khandual wrote:
>> early_memtest() does not get called from all architectures. Hence enabling
>> CONFIG_MEMTEST and providing a valid memtest=[1..N] kernel command line
>&g
On 2/5/21 1:05 PM, Max Filippov wrote:
> On Thu, Feb 4, 2021 at 8:10 PM Anshuman Khandual
> wrote:
>>
>> early_memtest() does not get called from all architectures. Hence enabling
>> CONFIG_MEMTEST and providing a valid memtest=[1..N] kernel command line
>> optio
On 2/5/21 1:50 PM, David Hildenbrand wrote:
> On 04.02.21 08:01, Anshuman Khandual wrote:
>> MAX_ORDER which invariably depends on FORCE_MAX_ZONEORDER can be a variable
>> for a given page size, depending on whether TRANSPARENT_HUGEPAGE is enabled
>> or not. In cert
-...@lists.ozlabs.org
Cc: linux-xte...@linux-xtensa.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
This patch applies on v5.11-rc6 and has been tested on arm64 platform. But
it has been just build tested on all other platforms.
arch/arm/Kconfig
guous.c:402:35: note: in expansion of macro ‘max’
phys_addr_t align = PAGE_SIZE << max(MAX_ORDER - 1, pageblock_order);
Cc: Christoph Hellwig
Cc: Marek Szyprowski
Cc: Robin Murphy
Cc: io...@lists.linux-foundation.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
Signed-off-by: Anshuman Khandual
---
arch/arm64/Kconfig | 4
1 file changed, 4 insertions(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 175914f2f340..c4acf8230f20 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1918,6 +1918,10 @@ config ARCH_ENABLE_THP_MIGRATION
on certain platforms like arm64. Lets prevent
the scenario by first checking HUGETLB_PAGE_ORDER against MAX_ORDER, before
its assignment as pageblock_order.
Cc: Andrew Morton
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
mm/page_alloc.c | 2 +-
1 file
rg
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (3):
mm/page_alloc: Fix pageblock_order when HUGETLB_PAGE_ORDER >= MAX_ORDER
arm64/hugetlb: Enable HUGETLB_PAGE_SIZE_VARIABLE
dma-contiguous: Type cast MAX_ORDER as unsigned int
arch/arm64/Kconfig | 4 +
t;>>>> On Tue, Feb 02, 2021 at 09:41:53AM +0530, Anshuman Khandual wrote:
>>>>>> pfn_valid() validates a pfn but basically it checks for a valid struct
>>>>>> page
>>>>>> backing for that pfn. It should always return positiv
On 1/29/21 3:53 PM, Suzuki K Poulose wrote:
> Hi Anshuman
>
> On 1/27/21 8:55 AM, Anshuman Khandual wrote:
>> Trace Buffer Extension (TRBE) implements a trace buffer per CPU which is
>> accessible via the system registers. The TRBE supports different addressing
>>
for normal hotplug memory as well.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Robin Murphy
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Acked-by: David Hildenbrand
Fixes: 73b20c84d42d ("arm64: mm: implement pte_devmap support")
Signed-off-by
.
This does not cause any functional change.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/init.c | 20 +++-
1 file changed, 15 insertions(+), 5
-20155-1-git-send-email-anshuman.khand...@arm.com/
- Test pfn_section_valid() for non boot memory
Changes in RFC:
https://lore.kernel.org/linux-arm-kernel/1608621144-4001-1-git-send-email-anshuman.khand...@arm.com/
Anshuman Khandual (2):
arm64/mm: Fix pfn_valid() for ZONE_DEVICE based memory
On 1/29/21 3:37 PM, David Hildenbrand wrote:
> On 29.01.21 08:39, Anshuman Khandual wrote:
>> There are multiple instances of pfn_to_section_nr() and __pfn_to_section()
>> when CONFIG_SPARSEMEM is enabled. This can be just optimized if the memory
>> section is fetched ear
Signed-off-by: Anshuman Khandual
---
include/linux/memory_hotplug.h | 10 +
mm/memory_hotplug.c| 78 +-
mm/memremap.c | 6 ++-
3 files changed, 74 insertions(+), 20 deletions(-)
diff --git a/include/linux/memory_hotplug.h b/include
, and in
corner cases only some memory at the end of the device-managed memory
region to not be pluggable.
Cc: "Michael S. Tsirkin"
Cc: Jason Wang
Cc: Pankaj Gupta
Cc: Oscar Salvador
Cc: Wei Yang
Cc: Andrew Morton
Cc: catalin.mari...@arm.com
Cc: teawater
Cc: Anshuman Khandual
Cc: Pankaj
been called on the hotplug path.
Cc: Heiko Carstens
Cc: Vasily Gorbik
Cc: David Hildenbrand
Cc: linux-s...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Heiko Carstens
Signed-off-by: Anshuman Khandual
---
arch/s390/mm/init.c | 1 +
arch/s390/mm/vmem.c | 14 +-
2 files
Gorbik
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Mark Rutland
Cc: David Hildenbrand
Cc: Andrew Morton
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-s...@vger.kernel.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (3):
mm/memory_hotplug: P
()
has already been called.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Mark Rutland
Cc: David Hildenbrand
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: David Hildenbrand
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 15
replace
the open coded pfn <--> addr conversion with __[pfn|phys]_to_[phys|pfn]().
This does not cause any functional change.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
for normal hotplug memory as well.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Robin Murphy
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Fixes: 73b20c84d42d ("arm64: mm: implement pte_devmap support")
Signed-off-by: Anshuman Khandual
---
arc
@vger.kernel.org
Changes in V1:
- Test pfn_section_valid() for non boot memory
Changes in RFC:
https://lore.kernel.org/linux-arm-kernel/1608621144-4001-1-git-send-email-anshuman.khand...@arm.com/
Anshuman Khandual (2):
arm64/mm: Fix pfn_valid() for ZONE_DEVICE based memory
arm64/mm: Reorganize pfn_valid
On 1/27/21 2:59 PM, David Hildenbrand wrote:
> On 27.01.21 05:06, Anshuman Khandual wrote:
>>
>>
>> On 1/25/21 2:43 PM, David Hildenbrand wrote:
>>> On 25.01.21 07:22, Anshuman Khandual wrote:
>>>>
>>>> On 12/22/20 12:42
ed_page().
>
> Cc: Andrew Morton
> Cc: Thomas Gleixner
> Cc: "Peter Zijlstra (Intel)"
> Cc: Mike Rapoport
> Cc: Oscar Salvador
> Cc: Michal Hocko
> Cc: Wei Yang
> Signed-off-by: David Hildenbrand
Reviewed-by: Anshuman Khandual
> ---
> incl
ort
> Cc: Oscar Salvador
> Cc: Michal Hocko
> Cc: Wei Yang
> Cc: "Gustavo A. R. Silva"
> Cc: Sam Ravnborg
> Signed-off-by: David Hildenbrand
There is no other reference for free_unused_pages() in the tree.
Reviewed-by: Anshuman Khandual
> ---
> drivers/v
Leach
Cc: Rob Herring
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
Changes in V3:
- Fixed all DT yaml semantics problems
Documentation/devicetree/bindings/arm/ete.yaml | 74 ++
1 file changed, 74 insertions(+)
create mode 100644 Documentation
This adds TRBE related registers and corresponding feature macros.
Cc: Mathieu Poirier
Cc: Mike Leach
Cc: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
Changes in V3:
- ID_AA64DFR0_TRBE_SHIFT has been moved here from the TRBE driver
- Changed TRBLIMITR_TRIG_MODE_SHIFT as 3
arch
From: Suzuki K Poulose
When the kernel is booted at EL2 in a nvhe configuration,
enable the TRBE access to the EL1. The EL1 still can't trace
EL2, unless EL2 permits explicitly via TRFCR_EL2.E2TRE.
Cc: Will Deacon
Cc: Catalin Marinas
Cc: Marc Zyngier
Cc: Mark Rutland
cc: Anshuman Khandual
. But such connections are not present for certain
percpu source and sink devices which are exclusively linked and dependent.
Build the path directly and skip connection scanning for such devices.
Cc: Mathieu Poirier
Cc: Mike Leach
Cc: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
Changes in V3
Cc: w...@kernel.org
Cc: mark.rutl...@arm.com
Cc: mike.le...@linaro.org
Cc: a...@kernel.org
Cc: jo...@redhat.com
Cc: Mathieu Poirier
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
include/uapi/linux/perf_event.h | 9 +
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git
e TRBE sink driver.
Cc: Peter Zijlstra
Cc: Mike Leach
Cc: Mathieu Poirier
Cc: Leo Yan
Cc: Anshuman Khandual
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
drivers/hwtracing/coresight/coresight-trbe.c | 2 ++
include/uapi/linux/perf_event.h | 4
2 files
ne of them supports
an IRQ and is centrally handled by the etm-perf.
Cc: Mathieu Poirier
Cc: Anshuman Khandual
Cc: Leo Yan
Cc: Mike Leach
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
drivers/hwtracing/coresight/coresight-etm-perf.c | 45 +---
1 file chan
From: Suzuki K Poulose
Document the device tree bindings for Trace Buffer Extension (TRBE).
Cc: Anshuman Khandual
Cc: Mathieu Poirier
Cc: Rob Herring
Cc: devicet...@vger.kernel.org
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
Changes in V3:
- Added missing
to
it indicating TraceActive.
Cc: Mathieu Poirier
Cc: Mike Leach
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
drivers/hwtracing/coresight/Kconfig| 10 ++--
drivers/hwtracing/coresight/coresight-etm4x-core.c | 56 +-
.../hwtracing/coresight
is full. Overall implementation here is inspired from the Arm SPE driver.
Cc: Mathieu Poirier
Cc: Mike Leach
Cc: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
Changes in V3:
- Added new DT bindings document TRBE.yaml
- Changed TRBLIMITR_TRIG_MODE_SHIFT from 2 to 3
- Dropped isb() from
ki K Poulose
Cc: Mike Leach
Cc: Linu Cherian
Cc: coresi...@lists.linaro.org
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (3):
coresight: core: Add support for dedicated percpu sinks
arm64: Add TRBE definitions
coresight: sink: Add TRBE dr
: Mathieu Poirier
Cc: Mike Leach
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
drivers/hwtracing/coresight/coresight-platform.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/hwtracing/coresight/coresight-platform.c
b/drivers/hwtracing/coresight/coresight
, the event will only trace on the first detected
sink.
Cc: Mathieu Poirier
Cc: Mike Leach
Tested-by: Linu Cherian
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
drivers/hwtracing/coresight/coresight-etm-perf.c | 48 +++-
1 file changed, 38 insertions
-by: Anshuman Khandual
---
drivers/hwtracing/coresight/coresight-etm4x-core.c | 50 ++
drivers/hwtracing/coresight/coresight-etm4x.h | 15 +++
2 files changed, 56 insertions(+), 9 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c
b/drivers
: Mike Leach
Cc: Mathieu Poirier
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
drivers/hwtracing/coresight/coresight-etm4x-core.c | 32 +
drivers/hwtracing/coresight/coresight-etm4x.h | 52 ++
2 files changed, 75 insertions(+), 9
On 1/25/21 5:31 PM, David Hildenbrand wrote:
> On 25.01.21 03:58, Anshuman Khandual wrote:
>> From: David Hildenbrand
>>
>> Right now, we only check against MAX_PHYSMEM_BITS - but turns out there
>> are more restrictions of which memory we can actually hotplug, espe
On 1/25/21 1:01 PM, Mike Rapoport wrote:
> On Mon, Jan 25, 2021 at 11:52:32AM +0530, Anshuman Khandual wrote:
>>
>> On 12/22/20 12:42 PM, Anshuman Khandual wrote:
>>> pfn_valid() asserts that there is a memblock entry for a given pfn without
>>> MEMBLOCK_
On 1/25/21 2:43 PM, David Hildenbrand wrote:
> On 25.01.21 07:22, Anshuman Khandual wrote:
>>
>> On 12/22/20 12:42 PM, Anshuman Khandual wrote:
>>> pfn_valid() asserts that there is a memblock entry for a given pfn without
>>> MEMBLOCK_NOMAP flag being set. T
On 1/25/21 2:55 PM, David Hildenbrand wrote:
> On 25.01.21 03:58, Anshuman Khandual wrote:
>> This series adds a mechanism allowing platforms to weigh in and prevalidate
>> incoming address range before proceeding further with the memory hotplug.
>> This helps prevent pote
On 1/25/21 1:56 PM, Greg Kroah-Hartman wrote:
> On Mon, Jan 25, 2021 at 11:24:53AM +0530, Anshuman Khandual wrote:
>> This renames all 'memhp' instances to 'mhp' except for memhp_default_state
>> for being a kernel command line option. This is just a clean up and shou
On 12/22/20 12:42 PM, Anshuman Khandual wrote:
> pfn_valid() asserts that there is a memblock entry for a given pfn without
> MEMBLOCK_NOMAP flag being set. The problem with ZONE_DEVICE based memory is
> that they do not have memblock entries. Hence memblock_is_map_memory() will
>
nux-kernel@vger.kernel.org
Suggested-by: David Hildenbrand
Signed-off-by: Anshuman Khandual
---
During hotplug arch callback series, it was proposed to convert all the
remaining 'memhp' into 'mhp' instead.
https://lore.kernel.org/linux-mm/c37de2d0-28a1-4f7d-f944-cfd7d81c3...@redhat.com/
This applies on
been called on the hotplug path.
Cc: Heiko Carstens
Cc: Vasily Gorbik
Cc: David Hildenbrand
Cc: linux-s...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Heiko Carstens
Signed-off-by: Anshuman Khandual
---
arch/s390/mm/init.c | 1 +
arch/s390/mm/vmem.c | 14 +-
2 files
, and in
corner cases only some memory at the end of the device-managed memory
region to not be pluggable.
Cc: "Michael S. Tsirkin"
Cc: Jason Wang
Cc: Pankaj Gupta
Cc: Oscar Salvador
Cc: Wei Yang
Cc: Andrew Morton
Cc: catalin.mari...@arm.com
Cc: teawater
Cc: Anshuman Khandual
Cc: Pankaj
()
has already been called.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Mark Rutland
Cc: David Hildenbrand
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: David Hildenbrand
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 15
in arch_add_memory() where applicable
and check_hotplug_memory_addressable(), with unified mhp_range_allowed().
Cc: David Hildenbrand
Cc: Andrew Morton
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Oscar Salvador
Suggested-by: David Hildenbrand
Signed-off-by: Anshuman Khandual
arinas
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Mark Rutland
Cc: David Hildenbrand
Cc: Andrew Morton
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-s...@vger.kernel.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (3):
mm/memory_hotplug: Prevalidate the address r
On 1/22/21 2:48 PM, David Hildenbrand wrote:
>
>> +/*
>> + * Platforms should define arch_get_mappable_range() that provides
>> + * maximum possible addressable physical memory range for which the
>> + * linear mapping could be created. The platform returned address
>> + * range must adhere to
On 1/20/21 2:07 PM, Anshuman Khandual wrote:
>
>
> On 1/19/21 7:10 PM, Oscar Salvador wrote:
>> On Tue, Jan 19, 2021 at 02:33:03PM +0100, David Hildenbrand wrote:
>>> Minor thing, we should make up our mind if we want to call stuff
>>> internally "memhp_&q
On 1/21/21 3:27 PM, David Hildenbrand wrote:
> On 18.01.21 14:21, Anshuman Khandual wrote:
>>
>>
>> On 1/18/21 6:43 PM, Anshuman Khandual wrote:
>>> From: David Hildenbrand
>>>
>>> Right now, we only check against MAX_PHYSMEM_BITS - but turns out
s bits in the !vmemmap case. Also section size needs to be multiple
>> of 128MB to have PMD based vmemmap mapping with CONFIG_ARM64_4K_PAGES.
>>
>> Given these constraints, lets just reduce the section size to 128MB for 4K
>> and 16K base page size configs, and to 512MB fo
-by: Catalin Marinas
Signed-off-by: Anshuman Khandual
---
Documentation/vm/arch_pgtable_helpers.rst | 8 ++---
mm/debug_vm_pgtable.c | 39 +++
2 files changed, 43 insertions(+), 4 deletions(-)
diff --git a/Documentation/vm/arch_pgtable_helpers.rst
b/Documentation
the mm_struct i.e __is_defined(__PAGETABLE_PMD_FOLDED).
Cc: Andrew Morton
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Gerald Schaefer [s390]
Reviewed-by: Steven Price
Suggested-by: Catalin Marinas
Signed-off-by: Anshuman Khandual
---
mm/debug_vm_pgtable.c | 47
On 1/19/21 7:10 PM, Oscar Salvador wrote:
> On Tue, Jan 19, 2021 at 02:33:03PM +0100, David Hildenbrand wrote:
>> Minor thing, we should make up our mind if we want to call stuff
>> internally "memhp_" or "mhp". I prefer the latter, because it is shorter.
>
> I would rather use the latter as
On 1/19/21 5:51 PM, David Hildenbrand wrote:
> On 18.01.21 14:12, Anshuman Khandual wrote:
>> This introduces memhp_range_allowed() which can be called in various memory
>> hotplug paths to prevalidate the address range which is being added, with
>> the platform. The
On 1/19/21 5:56 PM, David Hildenbrand wrote:
> On 18.01.21 14:13, Anshuman Khandual wrote:
>> This overrides arch_get_mappabble_range() on s390 platform which will be
>> used with recently added generic framework. It modifies the existing range
>> check in vme
On 1/18/21 6:43 PM, Anshuman Khandual wrote:
> From: David Hildenbrand
>
> Right now, we only check against MAX_PHYSMEM_BITS - but turns out there
> are more restrictions of which memory we can actually hotplug, especially
> om arm64 or s390x once we support them: we might re
been called on the hotplug path.
Cc: Heiko Carstens
Cc: Vasily Gorbik
Cc: David Hildenbrand
Cc: linux-s...@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Heiko Carstens
Signed-off-by: Anshuman Khandual
---
arch/s390/mm/init.c | 1 +
arch/s390/mm/vmem.c | 15 ++-
2
-ker...@lists.infradead.org
Cc: linux-s...@vger.kernel.org
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (3):
mm/memory_hotplug: Prevalidate the address range being added with platform
arm64/mm: Define arch_get_mappable_range()
s390/mm: Define arch_get_mappable_range()
D
, and in
corner cases only some memory at the end of the device-managed memory
region to not be pluggable.
Cc: "Michael S. Tsirkin"
Cc: Jason Wang
Cc: Pankaj Gupta
Cc: Michal Hocko
Cc: Oscar Salvador
Cc: Wei Yang
Cc: Andrew Morton
Cc: catalin.mari...@arm.com
Cc: teawater
Cc: Anshuman Khandual
()
has already been called.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Ard Biesheuvel
Cc: Mark Rutland
Cc: David Hildenbrand
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Anshuman Khandual
---
arch/arm64/mm/mmu.c | 15 +++
1 file changed, 7
in arch_add_memory() where applicable
and check_hotplug_memory_addressable(), with unified memhp_range_allowed().
Cc: David Hildenbrand
Cc: Andrew Morton
Cc: linux...@kvack.org
Cc: linux-kernel@vger.kernel.org
Suggested-by: David Hildenbrand
Signed-off-by: Anshuman Khandual
---
include/linux
On 1/15/21 6:13 PM, Suzuki K Poulose wrote:
> On 1/15/21 5:29 AM, Anshuman Khandual wrote:
>>
>>
>> On 1/13/21 8:58 PM, Suzuki K Poulose wrote:
>>> Hi Anshuman,
>>>
>>> The driver looks overall good to me. Please find some minor comments be
On 1/13/21 8:58 PM, Suzuki K Poulose wrote:
> Hi Anshuman,
>
> The driver looks overall good to me. Please find some minor comments below
>
> On 1/13/21 4:18 AM, Anshuman Khandual wrote:
>> Trace Buffer Extension (TRBE) implements a trace buffer per CPU which is
>>
On 1/13/21 3:13 PM, Suzuki K Poulose wrote:
> On 1/13/21 4:18 AM, Anshuman Khandual wrote:
>> Add support for dedicated sinks that are bound to individual CPUs. (e.g,
>> TRBE). To allow quicker access to the sink for a given CPU bound source,
>> keep a percpu array of t
On 1/13/21 2:51 PM, Suzuki K Poulose wrote:
> On 1/13/21 4:18 AM, Anshuman Khandual wrote:
>> This adds TRBE related registers and corresponding feature macros.
>>
>> Cc: Mathieu Poirier
>> Cc: Mike Leach
>> Cc: Suzuki K Poulose
>> Signed-off-by: An
On 1/11/21 4:10 PM, David Hildenbrand wrote:
> On 17.12.20 16:28, Anshuman Khandual wrote:
>> This overrides arch_get_mappabble_range() on s390 platform which will be
>> used with recently added generic framework. It modifies the existing range
>> check in vme
On 1/12/21 3:39 PM, David Hildenbrand wrote:
> On 12.01.21 04:51, Anshuman Khandual wrote:
>>
>>
>> On 1/11/21 7:13 PM, Oscar Salvador wrote:
>>> On Mon, Jan 11, 2021 at 11:51:47AM +0100, David Hildenbrand wrote:
>>>> AFAIKs, all memhp_get_pluggable_ra
. But such connections are not present for certain
percpu source and sink devices which are exclusively linked and dependent.
Build the path directly and skip connection scanning for such devices.
Cc: Mathieu Poirier
Cc: Mike Leach
Cc: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
drivers/hwtracing
While starting off the etm event, just abort and truncate the perf record
if the perf handle as no space left. This avoids configuring both source
and sink devices in case the data cannot be consumed in perf.
Cc: Mathieu Poirier
Cc: Mike Leach
Cc: Suzuki K Poulose
Signed-off-by: Anshuman
is full. Overall implementation here is inspired from the Arm SPE driver.
Cc: Mathieu Poirier
Cc: Mike Leach
Cc: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
Changes in V2:
- Dropped irq from coresight sysfs documentation
- Renamed get_trbe_limit() as compute_trbe_buffer_limit
From: Suzuki K Poulose
Document the device tree bindings for Trace Buffer Extension (TRBE).
Cc: Anshuman Khandual
Cc: Mathieu Poirier
Cc: Rob Herring
Cc: devicet...@vger.kernel.org
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
Documentation/devicetree/bindings/arm
Leach
Cc: Rob Herring
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
Documentation/devicetree/bindings/arm/ete.yaml | 71 ++
1 file changed, 71 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/ete.yaml
diff --git
to
it indicating TraceActive.
Cc: Mathieu Poirier
Cc: Mike Leach
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
Changes in V2:
- Update Kconfig title and description to include ETE
- Filter out registers not implemented in ETE from sysfs
drivers/hwtracing/coresight/Kconfig
This adds TRBE related registers and corresponding feature macros.
Cc: Mathieu Poirier
Cc: Mike Leach
Cc: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
arch/arm64/include/asm/sysreg.h | 49 +
1 file changed, 49 insertions(+)
diff --git a/arch
: Mike Leach
Cc: Mathieu Poirier
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
drivers/hwtracing/coresight/coresight-etm4x-core.c | 32 +
drivers/hwtracing/coresight/coresight-etm4x.h | 52 ++
2 files changed, 75 insertions(+), 9
: Mathieu Poirier
Cc: Mike Leach
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
drivers/hwtracing/coresight/coresight-platform.c | 6 ++
1 file changed, 6 insertions(+)
diff --git a/drivers/hwtracing/coresight/coresight-platform.c
b/drivers/hwtracing/coresight/coresight
-by: Anshuman Khandual
---
drivers/hwtracing/coresight/coresight-etm4x-core.c | 50 ++
drivers/hwtracing/coresight/coresight-etm4x.h | 15 +++
2 files changed, 56 insertions(+), 9 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c
b/drivers
, the event will only trace on the first detected
sink.
Cc: Mathieu Poirier
Cc: Mike Leach
Tested-by: Linu Cherian
Signed-off-by: Suzuki K Poulose
Signed-off-by: Anshuman Khandual
---
drivers/hwtracing/coresight/coresight-etm-perf.c | 48 +++-
1 file changed, 38 insertions
lose
Cc: Mike Leach
Cc: Linu Cherian
Cc: coresi...@lists.linaro.org
Cc: linux-arm-ker...@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Anshuman Khandual (4):
arm64: Add TRBE definitions
coresight: core: Add support for dedicated percpu sinks
coresight: etm-perf: Truncate the perf re
> Cc: Oscar Salvador
> Cc: Wei Yang
> Cc: Andrew Morton
> Cc: catalin.mari...@arm.com
> Cc: teawater
> Cc: Anshuman Khandual
> Cc: Pankaj Gupta
> Cc: Jonathan Cameron
> Cc: h...@linux.ibm.com
> Cc: Vasily Gorbik
> Cc: Will Deacon
> Cc: Ard Biesheuv
On 1/11/21 7:13 PM, Oscar Salvador wrote:
> On Mon, Jan 11, 2021 at 11:51:47AM +0100, David Hildenbrand wrote:
>> AFAIKs, all memhp_get_pluggable_range() users pass "1".
>>
>> What about the "add_pages()-only" path?
>
> I guess you refer to memremap_pages(), right?
Right, via pagemap_range().
On 1/11/21 4:21 PM, David Hildenbrand wrote:
> On 17.12.20 16:28, Anshuman Khandual wrote:
>> This introduces memhp_range_allowed() which can be called in various memory
>> hotplug paths to prevalidate the address range which is being added, with
>> the platform. The
by: Sudarshan Rajagopalan
> Suggested-by: David Hildenbrand
> Cc: Will Deacon
> Cc: Anshuman Khandual
> Cc: Mike Rapoport
> Cc: Mark Rutland
> Cc: Suren Baghdasaryan
A nit. Please add all relevant mailing lists like LAKML, MM along
with other developers here in the CC list,
On 1/11/21 3:43 PM, David Hildenbrand wrote:
> On 11.01.21 05:17, Anshuman Khandual wrote:
>>
>>
>> On 1/8/21 9:00 PM, David Hildenbrand wrote:
>>>> To summarize, the section size bits for each base page size config
>>>> should always
&
101 - 200 of 2971 matches
Mail list logo
