Hi Christophe,
On 7/31/23 22:21, Christophe Leroy wrote:
>
>
> Le 24/07/2023 à 08:33, Randy Dunlap a écrit :
>> Reconcile devices.txt with serial/ucc_uart.c regarding device number
>> assignments. ucc_uart.c supports 4 ports and uses minor devnums
>> 46-49, so update devices.txt with that info.
Le 24/07/2023 à 08:33, Randy Dunlap a écrit :
> Reconcile devices.txt with serial/ucc_uart.c regarding device number
> assignments. ucc_uart.c supports 4 ports and uses minor devnums
> 46-49, so update devices.txt with that info.
> Then update ucc_uart.c's reference to the location of the
Certain devices can possess non-standard memory capacities, not constrained
to multiples of 1GB. Provide a kernel parameter so that we can map the
device memory completely on memory hotplug.
Restrict memory_block_size value to a power of 2 value similar to LMB size.
The memory block size should
Parse the device tree in early init to find the memory block size to be
used by the kernel. Consolidate the memory block size device tree parsing
to one helper and use that on both powernv and pseries. We still want to
use machine-specific callback because on all machine types other than
powernv
With memmap on memory, some architecture needs more details w.r.t altmap
such as base_pfn, end_pfn, etc to unmap vmemmap memory. Instead of
computing them again when we remove a memory block, embed vmem_altmap
details in struct memory_block if we are using memmap on memory block
feature.
Allow updating memmap_on_memory mode after the kernel boot. Memory
hotplug done after the mode update will use the new mmemap_on_memory
value.
Acked-by: David Hildenbrand
Signed-off-by: Aneesh Kumar K.V
---
mm/memory_hotplug.c | 33 +
1 file changed, 17
Radix vmemmap mapping can map things correctly at the PMD level or PTE
level based on different device boundary checks. Hence we skip the
restrictions w.r.t vmemmap size to be multiple of PMD_SIZE. This also
makes the feature widely useful because to use PMD_SIZE vmemmap area we
require a memory
Currently, memmap_on_memory feature is only supported with memory block
sizes that result in vmemmap pages covering full page blocks. This is
because memory onlining/offlining code requires applicable ranges to be
pageblock-aligned, for example, to set the migratetypes properly.
This patch helps
Some architectures would want different restrictions. Hence add an
architecture-specific override.
The PMD_SIZE check is moved there.
Acked-by: David Hildenbrand
Signed-off-by: Aneesh Kumar K.V
---
mm/memory_hotplug.c | 24
1 file changed, 20 insertions(+), 4
If not supported, fallback to not using memap on memmory. This avoids
the need for callers to do the fallback.
Acked-by: David Hildenbrand
Signed-off-by: Aneesh Kumar K.V
---
drivers/acpi/acpi_memhotplug.c | 3 +--
include/linux/memory_hotplug.h | 3 ++-
mm/memory_hotplug.c| 13
Instead of adding menu entry with all supported architectures, add
mm/Kconfig variable and select the same from supported architectures.
No functional change in this patch.
Acked-by: David Hildenbrand
Signed-off-by: Aneesh Kumar K.V
---
arch/arm64/Kconfig | 4 +---
arch/x86/Kconfig | 4 +---
This patch series update memmap on memory feature to fall back to
memmap allocation outside the memory block if the alignment rules are
not met. This makes the feature more useful on architectures like
ppc64 where alignment rules are different with 64K page size.
This patch series is dependent on
PowerPC was the only user of these hooks, and has been refactored to no
longer require them. There is no need to keep them around, so remove
them to reduce complexity.
Signed-off-by: Benjamin Gray
---
include/linux/hw_breakpoint.h | 3 ---
kernel/events/hw_breakpoint.c | 28
Now that ptrace and perf are no longer exclusive, update the
test to exercise interesting interactions.
An assembly file is used for the children to allow precise instruction
choice and addresses, while avoiding any compiler quirks.
Signed-off-by: Benjamin Gray
---
ptrace and perf watchpoints were considered incompatible in
commit 29da4f91c0c1 ("powerpc/watchpoint: Don't allow concurrent perf
and ptrace events"), but the logic in that commit doesn't really apply.
Ptrace doesn't automatically single step; the ptracer must request this
explicitly. And the
We only remove watchpoints when they have the perf_single_step flag set,
so we can reinsert them during the first iteration.
Signed-off-by: Benjamin Gray
---
arch/powerpc/kernel/hw_breakpoint.c | 12 +---
1 file changed, 1 insertion(+), 11 deletions(-)
diff --git
The behaviour of the thread_change_pc() function is a bit cryptic
without being more familiar with how the watchpoint logic handles
perf's after-execute semantics.
Expand the comment to explain why we can re-insert the breakpoint and
unset the perf_single_step flag.
Signed-off-by: Benjamin Gray
There is a bug in the current watchpoint tracking logic, where the
teardown in arch_unregister_hw_breakpoint() uses bp->ctx->task, which it
does not have a reference of and parallel threads may be in the process
of destroying. This was partially addressed in commit fb822e6076d9
info is cheap to retrieve, and is likely optimised by the compiler
anyway. On the other hand, propagating it across the functions makes it
possible to be inconsistent and adds needless complexity.
Remove it, and invoke counter_arch_bp() when we need to work with it.
As we don't persist it, we
Syzkaller triggered a null pointer dereference in the
arch_unregister_hw_breakpoint() hook. This is due to accessing
the bp->ctx->task field changing to -1 while we iterate the breakpoints.
This series refactors the breakpoint tracking logic to remove the
dependency on bp->ctx entirely. It also
On Mon, Jul 24, 2023 at 02:54:38PM -0600, Rob Herring wrote:
> The DT of_device.h and of_platform.h date back to the separate
> of_platform_bus_type before it as merged into the regular platform bus.
> As part of that merge prepping Arm DT support 13 years ago, they
> "temporarily" include each
On Fri, Jul 28, 2023 at 3:59 PM Tomasz Figa wrote:
> Hi Shengjiu,
>
> On Tue, Jul 25, 2023 at 02:12:17PM +0800, Shengjiu Wang wrote:
> > Audio signal processing has the requirement for memory to
> > memory similar as Video.
> >
> > This patch is to add this support in v4l2 framework, defined
> >
On 7/31/23 10:55, Thomas Zimmermann wrote:
> Use fb_info() to print status message at the end of the probe function,
> which avoids decoding the devices. fb_info() works with or without an
> fbdev kernel device. Fixes the following error:
>
> ../drivers/video/fbdev/ps3fb.c: In function
On Mon, Jul 31, 2023 at 07:55:00PM +0200, Thomas Zimmermann wrote:
> Use fb_info() to print status message at the end of the probe function,
> which avoids decoding the devices. fb_info() works with or without an
> fbdev kernel device. Fixes the following error:
>
>
Use fb_info() to print status message at the end of the probe function,
which avoids decoding the devices. fb_info() works with or without an
fbdev kernel device. Fixes the following error:
../drivers/video/fbdev/ps3fb.c: In function 'ps3fb_probe':
../drivers/video/fbdev/ps3fb.c:1172:40: error:
These functions are no longer necessary. Remove them and cleanup
Documentation referencing them.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
Documentation/mm/split_page_table_lock.rst| 12 +--
.../zh_CN/mm/split_page_table_lock.rst| 14
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents. Also cleans up some spacing issues.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/um/include/asm/pgalloc.h | 18 +-
1 file changed, 9 insertions(+), 9
Part of the conversions to replace pgtable pte constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/sparc/mm/srmmu.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/sparc/mm/srmmu.c
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/sparc/mm/init_64.c | 17 +
1 file changed, 9
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents. Also cleans up some spacing issues.
Signed-off-by: Vishal Moola (Oracle)
Reviewed-by: Geert Uytterhoeven
Acked-by: John Paul Adrian Glaubitz
Acked-by: Mike Rapoport (IBM)
---
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/openrisc/include/asm/pgalloc.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
Acked-by: Dinh Nguyen
---
arch/nios2/include/asm/pgalloc.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/hexagon/include/asm/pgalloc.h | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git
Part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Guo Ren
Acked-by: Mike Rapoport (IBM)
---
arch/csky/include/asm/pgalloc.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
Acked-by: Catalin Marinas
---
arch/arm64/include/asm/tlb.h | 14 --
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
late_alloc() also uses the __get_free_pages() helper function. Convert
this to use pagetable_alloc() and ptdesc_address() instead to help
standardize
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize
The page table members are now split out into their own ptdesc struct.
Remove them from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm_types.h | 18 --
include/linux/pgtable.h | 3 ---
2 files changed, 21 deletions(-)
As part of the conversions to replace pgtable constructor/destructors with
ptdesc equivalents, convert various page table functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize
In order to split struct ptdesc from struct page, convert various
functions to use ptdescs.
Some of the functions use the *get*page*() helper functions. Convert
these to use pagetable_alloc() and ptdesc_address() instead to help
standardize page tables further.
Signed-off-by: Vishal Moola
In order to split struct ptdesc from struct page, convert various
functions to use ptdescs.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/powerpc/mm/book3s64/mmu_context.c | 10 ++---
arch/powerpc/mm/book3s64/pgtable.c | 32 +++---
Create pagetable_pte_ctor(), pagetable_pmd_ctor(), pagetable_pte_dtor(),
and pagetable_pmd_dtor() and make the original pgtable
constructor/destructors wrappers.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 56
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 10 +-
mm/memory.c| 4 ++--
2 files changed, 7 insertions(+), 7
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 14 +++---
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
arch/x86/xen/mmu_pv.c | 2 +-
include/linux/mm.h| 14 +++---
2 files changed, 8 insertions(+), 8
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 6 +++---
mm/memory.c| 4 ++--
2 files changed, 5 insertions(+), 5 deletions(-)
Converts internal pmd_pgtable_page() callers to use pmd_ptdesc(). This
removes some direct accesses to struct page, working towards splitting
out struct ptdesc from struct page.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/mm.h | 4 ++--
1 file changed,
Introduce utility functions setting the foundation for ptdescs. These
will also assist in the splitting out of ptdesc from struct page.
Functions that focus on the descriptor are prefixed with ptdesc_* while
functions that focus on the pagetable are prefixed with pagetable_*.
pagetable_alloc()
Currently, page table information is stored within struct page. As part
of simplifying struct page, create struct ptdesc for page table
information.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
include/linux/pgtable.h | 71 +
1
The MM subsystem is trying to shrink struct page. This patchset
introduces a memory descriptor for page table tracking - struct ptdesc.
This patchset introduces ptdesc, splits ptdesc from struct page, and
converts many callers of page table constructor/destructors to use ptdescs.
Ptdesc is a
No folio equivalents for page type operations have been defined, so
define them for later folio conversions.
Also changes the Page##uname macros to take in const struct page* since
we only read the memory here.
Signed-off-by: Vishal Moola (Oracle)
Acked-by: Mike Rapoport (IBM)
---
Hi Sean,
On Tue, Jul 25, 2023 at 5:04 PM Sean Christopherson wrote:
>
> On Tue, Jul 25, 2023, Wei W Wang wrote:
> > On Wednesday, July 19, 2023 7:45 AM, Sean Christopherson wrote:
> > > +int kvm_gmem_get_pfn(struct kvm *kvm, struct kvm_memory_slot *slot,
> > > +gfn_t gfn,
Thanks,
applied to the dma-mapping tree for 6.6.
On 7/29/23 02:03, Sean Christopherson wrote:
KVM would need to do multiple uaccess reads, but that's not a big
deal. Am I missing something, or did past us just get too clever and
miss the obvious solution?
You would have to introduce struct kvm_userspace_memory_region2 anyway,
though not a
On Thu, Jul 20, 2023 at 09:58:33AM -0400, Frank Li wrote:
> Add support to pass Link down notification to Endpoint function driver
> so that the LINK_DOWN event can be processed by the function.
>
> Acked-by: Manivannan Sadhasivam
> Signed-off-by: Frank Li
> ---
@Lorenzo
Could you please
radix to use a different vmemmap handling
function
Have attached the kdump log.
-Sachin
OF stdout device is: /vdevice/vty@3000
Preparing to boot Linux version 6.5.0-rc4-next-20230731
(r...@ltcden8-lp8.aus.stglabs.ibm.com) (gcc (GCC) 11.3.1 20221121 (Red Hat
11.3.1-4), GNU ld version 2.35.2
Hi,
Am 13.07.23 um 18:11 schrieb Randy Dunlap:
On 7/12/23 19:37, Stephen Rothwell wrote:
Hi all,
sorry, I've been AFK for a bit. I'll send a fix soon.
Best regards
Thomas
Changes since 20230712:
on ppc64:
In file included from ../include/linux/device.h:15,
from
Hi Sean,
On Thu, Jul 27, 2023 at 6:13 PM Sean Christopherson wrote:
>
> On Thu, Jul 27, 2023, Fuad Tabba wrote:
> > Hi Sean,
> >
> >
> > ...
> >
> > > @@ -5134,6 +5167,16 @@ static long kvm_vm_ioctl(struct file *filp,
> > > case KVM_GET_STATS_FD:
> > > r =
On Sat, Jul 29, 2023 at 08:58:57PM +0530, Aneesh Kumar K V wrote:
Thanks for correcting the right device tree node and testing the
changes. Can I add
Co-authored-by: Reza Arbab
Sure, that's fine.
Signed-off-by: Reza Arbab
--
Reza Arbab
On 7/18/23 13:48, Michael Ellerman wrote:
Bagas Sanjaya writes:
On Thu, Jul 13, 2023 at 09:11:10AM -0700, Randy Dunlap wrote:
on ppc64:
In file included from ../include/linux/device.h:15,
from ../arch/powerpc/include/asm/io.h:22,
from
On Mon, Jul 24, 2023 at 02:21:50PM -0300, Jason Gunthorpe wrote:
> [ It would be good to get this in linux-next, we have some good test
> coverage on the ARM side already, thanks! ]
>
> It has been a long time coming, this series completes the default_domain
> transition and makes it so that the
On Sat, Jul 29, 2023 at 08:54:26PM +1000, Michael Ellerman wrote:
> Gautam Menghani writes:
> > On Thu, Jul 06, 2023 at 05:50:57PM +1000, Jordan Niethe wrote:
> >> On 30/6/23 3:56 pm, Gautam Menghani wrote:
> >> > Remove an unnecessary piece of code that does an endianness conversion
> >> > but
Remove an unnecessary piece of code that does an endianness conversion but
does not use the result. The following warning was reported by Clang's
static analyzer:
arch/powerpc/sysdev/xics/ics-opal.c:114:2: warning: Value stored to
'server' is never read [deadcode.DeadStores]
server =
Le 28/07/2023 à 09:58, Thomas Gleixner a écrit :
Laurent, Michael!
On Wed, Jul 05 2023 at 16:51, Laurent Dufour wrote:
I'm taking over the series Michael sent previously [1] which is smartly
reviewing the initial series I sent [2]. This series is addressing the
comments sent by Thomas and
On 18.07.23 18:15, Randy Dunlap wrote:
> On 7/18/23 04:48, Michael Ellerman wrote:
>> Bagas Sanjaya writes:
>>> On Thu, Jul 13, 2023 at 09:11:10AM -0700, Randy Dunlap wrote:
on ppc64:
In file included from ../include/linux/device.h:15,
from
On 7/19/23 01:44, Sean Christopherson wrote:
> Signed-off-by: Sean Christopherson
Process wise this will probably be frowned upon when done separately, so I'd
fold it in the patch using the export, seems to be the next one.
> ---
> security/security.c | 1 +
> 1 file changed, 1 insertion(+)
>
https://bugzilla.kernel.org/show_bug.cgi?id=215862
--- Comment #6 from Christophe Leroy (christophe.le...@csgroup.eu) ---
I'm out of office until August 1st.
--
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https://bugzilla.kernel.org/show_bug.cgi?id=215862
Erhard F. (erhar...@mailbox.org) changed:
What|Removed |Added
Status|NEW |RESOLVED
On Friday 28 Jul 2023 at 17:03:33 (-0700), Sean Christopherson wrote:
> On Fri, Jul 28, 2023, Quentin Perret wrote:
> > On Tuesday 18 Jul 2023 at 16:44:49 (-0700), Sean Christopherson wrote:
> > > --- a/include/uapi/linux/kvm.h
> > > +++ b/include/uapi/linux/kvm.h
> > > @@ -95,6 +95,16 @@ struct
'source' is the same as 'buf'. Rename the parameter ('buf') to
'source' and drop the local variable.
Likely, the two were introduced to have a different type. But 'char' and
'unsigned char' are the same in the kernel for a long time.
Signed-off-by: Jiri Slaby (SUSE)
Cc:
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