IOMMUFD relies on a private protocol with VFIO, and this always operated
in pinned mode.
Now that VFIO can support pinned importers update IOMMUFD to invoke the
normal dma-buf flow to request pin.
This isn't enough to allow IOMMUFD to work with other exporters, it still
needs a way to get the physical address list which is another series.
IOMMUFD supports the defined revoke semantics. It immediately stops and
fences access to the memory inside it's invalidate_mappings() callback,
and it currently doesn't use scatterlists so doesn't call map/unmap at
all.
It is expected that a future revision can synchronously call unmap from
the move_notify callback as well.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20260131-dmabuf-revoke-v7-8-463d956bd527@nvidia.com
Till now VFIO has rejected pinned importers, largely to avoid being used
with the RDMA pinned importer that cannot handle a move_notify() to revoke
access.
Using dma_buf_attach_revocable() it can tell the difference between pinned
importers that support the flow described in dma_buf_invalidate_mappings()
and those that don't.
Thus permit compatible pinned importers.
This is one of two items IOMMUFD requires to remove its private interface
to VFIO's dma-buf.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Alex Williamson <alex@shazbot.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20260131-dmabuf-revoke-v7-7-463d956bd527@nvidia.com
Some exporters need a flow to synchronously revoke access to the DMA-buf
by importers. Once revoke is completed the importer is not permitted to
touch the memory otherwise they may get IOMMU faults, AERs, or worse.
DMA-buf today defines a revoke flow, for both pinned and dynamic
importers, which is broadly:
dma_resv_lock(dmabuf->resv, NULL);
// Prevent new mappings from being established
priv->revoked = true;
// Tell all importers to eventually unmap
dma_buf_invalidate_mappings(dmabuf);
// Wait for any inprogress fences on the old mapping
dma_resv_wait_timeout(dmabuf->resv,
DMA_RESV_USAGE_BOOKKEEP, false,
MAX_SCHEDULE_TIMEOUT);
dma_resv_unlock(dmabuf->resv, NULL);
// Wait for all importers to complete unmap
wait_for_completion(&priv->unmapped_comp);
This works well, and an importer that continues to access the DMA-buf
after unmapping it is very buggy.
However, the final wait for unmap is effectively unbounded. Several
importers do not support invalidate_mappings() at all and won't unmap
until userspace triggers it.
This unbounded wait is not suitable for exporters like VFIO and RDMA tha
need to issue revoke as part of their normal operations.
Add dma_buf_attach_revocable() to allow exporters to determine the
difference between importers that can complete the above in bounded time,
and those that can't. It can be called inside the exporter's attach op to
reject incompatible importers.
Document these details about how dma_buf_invalidate_mappings() works and
what the required sequence is to achieve a full revocation.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20260131-dmabuf-revoke-v7-6-463d956bd527@nvidia.com
The .invalidate_mapping() callback is documented as optional, yet it
effectively became mandatory whenever importer_ops were provided. This
led to cases where RDMA non-ODP code had to supply an empty stub.
Relax the checks in the dma-buf core so the callback can be omitted,
allowing RDMA code to drop the unnecessary function.
Removing the stub allows the next patch to tell that RDMA does not support
.invalidate_mapping() by checking for a NULL op.
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20260131-dmabuf-revoke-v7-5-463d956bd527@nvidia.com
dma-buf invalidation is handled asynchronously by the hardware, so VFIO
must wait until all affected objects have been fully invalidated.
In addition, the dma-buf exporter is expecting that all importers unmap any
buffers they previously mapped.
Fixes: 5d74781ebc ("vfio/pci: Add dma-buf export support for MMIO regions")
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Alex Williamson <alex@shazbot.org>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20260131-dmabuf-revoke-v7-4-463d956bd527@nvidia.com
Using the inline lock is now the recommended way for dma_fence
implementations.
So use this approach for the framework's internal fences as well.
Also saves about 4 bytes for the external spinlock.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Reviewed-by: Philipp Stanner <phasta@kernel.org>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/r/20260219160822.1529-9-christian.koenig@amd.com
Using the inline lock is now the recommended way for dma_fence
implementations.
So use this approach for the framework's internal fences as well.
Also saves about 4 bytes for the external spinlock.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Reviewed-by: Philipp Stanner <phasta@kernel.org>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/r/20260219160822.1529-8-christian.koenig@amd.com
Using the inline lock is now the recommended way for dma_fence
implementations.
So use this approach for the framework's internal fences as well.
Also saves about 4 bytes for the external spinlock.
v2: drop unnecessary changes
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Reviewed-by: Philipp Stanner <phasta@kernel.org>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/r/20260219160822.1529-7-christian.koenig@amd.com
Drop the mock_fence and the kmem_cache, instead use the inline lock and
test if the ops are properly dropped after signaling.
v2: move the RCU check to the end of the test
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Link: https://lore.kernel.org/r/20260219160822.1529-6-christian.koenig@amd.com
Implement per-fence spinlocks, allowing implementations to not give an
external spinlock to protect the fence internal state. Instead a spinlock
embedded into the fence structure itself is used in this case.
Shared spinlocks have the problem that implementations need to guarantee
that the lock lives at least as long all fences referencing them.
Using a per-fence spinlock allows completely decoupling spinlock producer
and consumer life times, simplifying the handling in most use cases.
v2: improve naming, coverage and function documentation
v3: fix one additional locking in the selftests
v4: separate out some changes to make the patch smaller,
fix one amdgpu crash found by CI systems
v5: improve comments
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/r/20260219160822.1529-5-christian.koenig@amd.com
Add dma_fence_lock_irqsafe() and dma_fence_unlock_irqrestore() wrappers
and mechanically apply them everywhere.
Just a pre-requisite cleanup for a follow up patch.
v2: add some missing i915 bits, add abstraction for lockdep assertion as
well
v3: one more suggestion by Tvrtko
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Link: https://lore.kernel.org/r/20260219160822.1529-4-christian.koenig@amd.com
When neither a release nor a wait backend ops is specified it is possible
to let the dma_fence live on independently of the module who issued it.
This makes it possible to unload drivers and only wait for all their
fences to signal.
v2: fix typo in comment
v3: fix sparse rcu warnings
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Reviewed-by: Philipp Stanner <phasta@kernel.org>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/r/20260219160822.1529-3-christian.koenig@amd.com
The fence ops of a dma_fence currently need to life as long as the
dma_fence is alive. This means that the module which originally issued
a dma_fence can't unload unless all fences are freed up.
As first step to solve this issue protect the fence ops by RCU.
While it is counter intuitive to protect a constant function pointer table
by RCU it allows modules to wait for an RCU grace period before they
unload, to make sure that nobody is executing their functions any more.
This patch has not much functional change, but only adds the RCU
handling for the static checker to test.
v2: make one the now duplicated lockdep warnings a comment instead.
v3: Add more documentation to ->wait and ->release callback.
v4: fix typo in documentation
v5: rebased on drm-tip
v6: improve code comments
v7: improve commit message and code comments
v8: fix sparse rcu warnings
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@igalia.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Link: https://lore.kernel.org/r/20260219160822.1529-2-christian.koenig@amd.com
of_drm_find_bridge() is deprecated. Move to its replacement
of_drm_find_and_get_bridge() which gets a bridge reference, and ensure it
is put when done.
We need to handle the two cases: when a panel is found and when it isn't,
even though the latter is not supported. So:
* in case a panel is not found and bridge is, get a reference to the
found bridge
* in case a panel is found, get a reference to the panel_bridge when it
is added, so the following code always get exactly one reference that
it needs to put
Finally, use the next_bridge pointer in struct drm_bridge in order to
simplify putting the reference.
Reviewed-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260131-drm-bridge-alloc-getput-drm_of_find_bridge-4-v2-4-e081bcdc1467@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
mcde_dsi_bind() has a loop over all subnodes looking for a panel, but does
not exit when a match is found and only stores the last match. However this
will be problematic when introducing refcounting on the struct drm_device
pointer in a following commit, because of_drm_find_and_get_bridge() would
get a reference to multiple bridges.
There seem to be no real reason for looking for multiple panels, so just
break as soon as a match is found.
Reviewed-by: Linus Walleij <linusw@kernel.org>
Link: https://patch.msgid.link/20260131-drm-bridge-alloc-getput-drm_of_find_bridge-4-v2-3-e081bcdc1467@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Move gpu_buddy_block_state(), gpu_buddy_block_is_allocated(),
and gpu_buddy_block_is_split() from gpu_buddy.h to gpu_buddy.c
as static functions since they have no external callers.
Remove gpu_get_buddy() as it was an unused exported wrapper
around the internal __get_buddy().
No functional changes.
v2:
- Rebased after DRM buddy allocator moved to drivers/gpu/
- Keep gpu_buddy_block_is_free() in header since it's now
used by drm_buddy.c
- Updated commit message
Cc: Christian König <christian.koenig@amd.com>
Cc: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Suggested-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Sanjay Yadav <sanjay.kumar.yadav@intel.com>
Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Link: https://patch.msgid.link/20260212092527.718455-6-sanjay.kumar.yadav@intel.com
- Fix a build error on parisc
- Remove the non-large-folio-aware function fsverity_verify_page()
-----BEGIN PGP SIGNATURE-----
iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCaZtg+xQcZWJpZ2dlcnNA
a2VybmVsLm9yZwAKCRDzXCl4vpKOKwQ+AQCiXEYAibl3vHRgQo7qEPCC5or4FtkF
HZ0ERRArhsU17AD/TKHE/AJkyFrwK4rGTb6I9Wi1OXnpG7jihZlYjj03Ag4=
=CUql
-----END PGP SIGNATURE-----
Merge tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux
Pull fsverity fixes from Eric Biggers:
- Fix a build error on parisc
- Remove the non-large-folio-aware function fsverity_verify_page()
* tag 'fsverity-for-linus' of git://git.kernel.org/pub/scm/fs/fsverity/linux:
fsverity: fix build error by adding fsverity_readahead() stub
fsverity: remove fsverity_verify_page()
f2fs: make f2fs_verify_cluster() partially large-folio-aware
f2fs: remove unnecessary ClearPageUptodate in f2fs_verify_cluster()
Fix a big endian specific issue in the PPC64-optimized AES code.
-----BEGIN PGP SIGNATURE-----
iIoEABYIADIWIQSacvsUNc7UX4ntmEPzXCl4vpKOKwUCaZtiphQcZWJpZ2dlcnNA
a2VybmVsLm9yZwAKCRDzXCl4vpKOK/z2AQD1j15Ao3iDW3yBSyTS+tFJaRUVDtjg
bNostoNJAjMM9wD/X0oAnt95WTNkdHexs+2aMzQ4ULKFRcwQrUTarKx7IgY=
=Dmfx
-----END PGP SIGNATURE-----
Merge tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull crypto library fix from Eric Biggers:
"Fix a big endian specific issue in the PPC64-optimized AES code"
* tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
lib/crypto: powerpc/aes: Fix rndkey_from_vsx() on big endian CPUs
Stephen retired and stepped back from -next maintainership, update his
entry in CREDITS to recognise his 18 years of hard work making it what
it is today and all the impact it's had on our development process.
Also update to his current GnuPG key while we're here.
Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The x509 public key code gained a dependency on the sha256 hash
implementation, causing a rare link time failure in randconfig
builds:
arm-linux-gnueabi-ld: crypto/asymmetric_keys/x509_public_key.o: in function `x509_get_sig_params':
x509_public_key.c:(.text.x509_get_sig_params+0x12): undefined reference to `sha256'
arm-linux-gnueabi-ld: (sha256): Unknown destination type (ARM/Thumb) in crypto/asymmetric_keys/x509_public_key.o
x509_public_key.c:(.text.x509_get_sig_params+0x12): dangerous relocation: unsupported relocation
Select the necessary library code from Kconfig.
Fixes: 2c62068ac8 ("x509: Separately calculate sha256 for blacklist")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Align to the commit bf4afc53b7 ("Convert 'alloc_obj' family to use the
new default GFP_KERNEL argument") update the 'kmalloc_obj' declaration
for userspace to fix below compile error:
In file included from arch/arm/boot/compressed/../../../../lib/decompress_unxz.c:241,
from arch/arm/boot/compressed/decompress.c:56:
arch/arm/boot/compressed/../../../../lib/xz/xz_dec_stream.c: In function 'xz_dec_init':
arch/arm/boot/compressed/../../../../lib/xz/xz_dec_stream.c:787:28: error: implicit declaration of function 'kmalloc_obj'; did you mean 'kmalloc'? [-Wimplicit-function-declaration]
787 | struct xz_dec *s = kmalloc_obj(*s);
| ^~~~~~~~~~~
| kmalloc
Signed-off-by: Haiyue Wang <haiyuewa@163.com>
Fixes: 69050f8d6d ("treewide: Replace kmalloc with kmalloc_obj for non-scalar types")
Fixes: bf4afc53b7 ("Convert 'alloc_obj' family to use the new default GFP_KERNEL argument")
Reviewed-by: Kees Cook <kees@kernel.org>
Acked-by: Lasse Collin <lasse.collin@tukaani.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Toolchain and infrastructure:
- Pass '-Zunstable-options' flag required by the future Rust 1.95.0.
- Fix 'objtool' warning for Rust 1.84.0.
'kernel' crate:
- 'irq' module: add missing bound detected by the future Rust 1.95.0.
- 'list' module: add missing 'unsafe' blocks and placeholder safety
comments to macros (an issue for future callers within the crate).
'pin-init' crate:
- Clean Clippy warning that changed behavior in the future Rust 1.95.0.
-----BEGIN PGP SIGNATURE-----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=DOG1
-----END PGP SIGNATURE-----
Merge tag 'rust-fixes-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull rust fixes from Miguel Ojeda:
"Toolchain and infrastructure:
- Pass '-Zunstable-options' flag required by the future Rust 1.95.0
- Fix 'objtool' warning for Rust 1.84.0
'kernel' crate:
- 'irq' module: add missing bound detected by the future Rust 1.95.0
- 'list' module: add missing 'unsafe' blocks and placeholder safety
comments to macros (an issue for future callers within the crate)
'pin-init' crate:
- Clean Clippy warning that changed behavior in the future Rust
1.95.0"
* tag 'rust-fixes-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux:
rust: list: Add unsafe blocks for container_of and safety comments
rust: pin-init: replace clippy `expect` with `allow`
rust: irq: add `'static` bounds to irq callbacks
objtool/rust: add one more `noreturn` Rust function
rust: kbuild: pass `-Zunstable-options` for Rust 1.95.0
Summary of changes:
- Fix multiple definition of __pcpu_unique_da_mon_this
After refactoring monitors, we used static per-cpu variables with the
same names across different per-cpu monitors. This is explicitly
disallowed for modules on some architectures (alpha) or if
CONFIG_DEBUG_FORCE_WEAK_PER_CPU is enabled (e.g. Fedora's debug
kernel). Make sure all those variables have different names to avoid
compilation issues.
-----BEGIN PGP SIGNATURE-----
iIoEABYKADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCaZoJ1BQccm9zdGVkdEBn
b29kbWlzLm9yZwAKCRAp5XQQmuv6qkykAP41lj9VAe0dM81f20IfOBhqIBZPS6MP
ajRGZ9bz1ZiJwwD/dHm+APheD7umImzoDXpW1IJxgNPlZTnpte3WyhIYaQs=
=HxRz
-----END PGP SIGNATURE-----
Merge tag 'trace-rv-7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull runtime verifier fix from Steven Rostedt:
- Fix multiple definition of __pcpu_unique_da_mon_this
After refactoring monitors, we used static per-cpu variables with the
same names across different per-cpu monitors. This is explicitly
disallowed for modules on some architectures (alpha) or if
CONFIG_DEBUG_FORCE_WEAK_PER_CPU is enabled (e.g. Fedora's debug
kernel). Make sure all those variables have different names to avoid
compilation issues.
* tag 'trace-rv-7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
rv: Fix multiple definition of __pcpu_unique_da_mon_this
This converts some of the visually simpler cases that have been split
over multiple lines. I only did the ones that are easy to verify the
resulting diff by having just that final GFP_KERNEL argument on the next
line.
Somebody should probably do a proper coccinelle script for this, but for
me the trivial script actually resulted in an assertion failure in the
middle of the script. I probably had made it a bit _too_ trivial.
So after fighting that far a while I decided to just do some of the
syntactically simpler cases with variations of the previous 'sed'
scripts.
The more syntactically complex multi-line cases would mostly really want
whitespace cleanup anyway.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the exact same thing as the 'alloc_obj()' version, only much
smaller because there are a lot fewer users of the *alloc_flex()
interface.
As with alloc_obj() version, this was done entirely with mindless brute
force, using the same script, except using 'flex' in the pattern rather
than 'objs*'.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Most simple allocations use GFP_KERNEL, and with the new allocation
helpers being introduced, let's just take advantage of that to simplify
that default case.
It's a numbers game:
git grep 'alloc_obj(' |
sed 's/.*\(GFP_[_A-Z]*\).*/\1/' |
sort | uniq -c | sort -n | tail
shows that about 90% of all those new allocator instances just use that
standard GFP_KERNEL.
Those helpers are already macros, and we can easily just make it be the
default case when the gfp argument is missing.
And yes, we could do that for all the legacy interfaces too, but let's
keep it to just the new ones at least for now, since those all got
converted recently anyway, so this is not any "extra" noise outside of
that limited conversion.
And, in fact, I want to do this before doing the -rc1 release, exactly
so that we don't get extra merge conflicts.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 69050f8d6d ("treewide: Replace kmalloc with kmalloc_obj for
non-scalar types") started using the new allocation helpers, and in the
process showed that they were completely non-working.
The overflow logic in overflows_flex_counter_type() is completely the
wrong way around, and that broke __alloc_flex() completely. By chance,
the resulting code was then such a mess that clang generated
sufficiently garbage code that objtool warned about it all. Which made
it somewhat quicker to narrow things down.
While fixing overflows_flex_counter_type() would presumably fix this
all, I'm excising the whole broken overflow logic from __alloc_flex(),
because we don't want that kind of code in basic allocation functions
anyway.
That (no longer) broken overflows_flex_counter_type() thing needs to be
inserted into the actual __set_flex_counter() logic in the unlikely case
that we ever want this at all. And made conditional.
Fixes: 81cee9166a ("compiler_types: Introduce __flex_counter() and family")
Fixes: 69050f8d6d ("treewide: Replace kmalloc with kmalloc_obj for non-scalar types")
Cc: Kees Cook <kees@kernel.org>
Link: https://lore.kernel.org/all/CAHk-=whEd020BYzGTzYrENjD9Z5_82xx6h8HsQvH5xDSnv0=Hw@mail.gmail.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The DisplayPort of the RK3576 is basically the same as that of the
RK3588, but it operates in dual-pixel mode and also support MST.
This patch only enable the SST output now.
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20260206010421.443605-5-andyshrk@163.com
The i2s/spdif clk are mandatory for rk3588, but not used
for the upcoming rk3576, so make it optional here.
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20260206010421.443605-4-andyshrk@163.com
In the implementation and integration of the SoC, the DW DisplayPort
hardware block can be configured to work in single, dual, quad pixel
mode on differnt platforms, so make the pixel mode set by plat_data
to support the upcoming rk3576 variant.
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Tested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20260206010421.443605-3-andyshrk@163.com
The DisplayPort found on RK3576 is very similar to that of RK3588,
but work in dual pixel mode. And itself does not depend on the I2S
clock or the SPDIF clock when transmit audio.
Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20260206010421.443605-2-andyshrk@163.com
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRSPkdeREjth1dHnSE2KwveOeQkuwUCaZl14wAKCRA2KwveOeQk
uz8aAQCBFLYlij3Y3ivVADkBxuVF3xECaznFya41ENYsBwlHdwEArXqMyNrw+DiG
TvWCK/tiddNmGIRpI2sxBFzyRpsHfAY=
=rVD3
-----END PGP SIGNATURE-----
Merge tag 'kmalloc_obj-treewide-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull kmalloc_obj conversion from Kees Cook:
"This does the tree-wide conversion to kmalloc_obj() and friends using
coccinelle, with a subsequent small manual cleanup of whitespace
alignment that coccinelle does not handle.
This uncovered a clang bug in __builtin_counted_by_ref(), so the
conversion is preceded by disabling that for current versions of
clang. The imminent clang 22.1 release has the fix.
I've done allmodconfig build tests for x86_64, arm64, i386, and arm. I
did defconfig builds for alpha, m68k, mips, parisc, powerpc, riscv,
s390, sparc, sh, arc, csky, xtensa, hexagon, and openrisc"
* tag 'kmalloc_obj-treewide-v7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
kmalloc_obj: Clean up after treewide replacements
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
compiler_types: Disable __builtin_counted_by_ref for Clang
- Introduce 'perf sched stats' tool with record/report/diff workflows
using schedstat counters.
- Add a faster libdw based addr2line implementation and allow selecting
it or its alternatives via 'perf config addr2line.style='.
- Data-type profiling fixes and improvements including the ability
to select fields using 'perf report''s -F/-fields, e.g.:
'perf report --fields overhead,type'
- Add 'perf test' regression tests for Data-type profiling with
C and Rust workloads.
- Fix srcline printing with inlines in callchains, make sure this has
coverage in 'perf test'.
- Fix printing of leaf IP in LBR callchains.
- Fix display of metrics without sufficient permission in 'perf stat'.
- Print all machines in 'perf kvm report -vvv', not just the host.
- Switch from SHA-1 to BLAKE2s for build ID generation, remove SHA-1
code.
- Fix 'perf report's histogram entry collapsing with '-F' option.
- Use system's cacheline size instead of a hardcoded value in 'perf
report'.
- Allow filtering conversion by time range in 'perf data'.
- Cover conversion to CTF using 'perf data' in 'perf test'.
- Address newer glibc const-correctness (-Werror=discarded-qualifiers)
issues.
- Fixes and improvements for ARM's CoreSight support, simplify ARM SPE
event config in 'perf mem', update docs for 'perf c2c' including the
ARM events it can be used with.
- Build support for generating metrics from arch specific python script,
add extra AMD, Intel, ARM64 metrics using it.
- Add AMD Zen 6 events and metrics.
- Add JSON file with OpenHW Risc-V CVA6 hardware counters.
- Add 'perf kvm' stats live testing.
- Add more 'perf stat' tests to 'perf test'.
- Fix segfault in `perf lock contention -b/--use-bpf`
- Fix various 'perf test' cases for s390.
- Build system cleanups, bump minimum shellcheck version to 0.7.2
- Support building the capstone based annotation routines as a plugin.
- Allow passing extra Clang flags via EXTRA_BPF_FLAGS.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQR2GiIUctdOfX2qHhGyPKLppCJ+JwUCaZn25QAKCRCyPKLppCJ+
J9MbAQCTKChBwDsqVh5iPr0UAc+mez9LOPJFa580SYH9nmd1jgD+Oqip7xCf514G
ZtYPNh+Mz0se0Mcb++syLUEjxvbrQQY=
=y2VY
-----END PGP SIGNATURE-----
Merge tag 'perf-tools-for-v7.0-1-2026-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools
Pull perf tools updates from Arnaldo Carvalho de Melo:
- Introduce 'perf sched stats' tool with record/report/diff workflows
using schedstat counters
- Add a faster libdw based addr2line implementation and allow selecting
it or its alternatives via 'perf config addr2line.style='
- Data-type profiling fixes and improvements including the ability to
select fields using 'perf report''s -F/-fields, e.g.:
'perf report --fields overhead,type'
- Add 'perf test' regression tests for Data-type profiling with C and
Rust workloads
- Fix srcline printing with inlines in callchains, make sure this has
coverage in 'perf test'
- Fix printing of leaf IP in LBR callchains
- Fix display of metrics without sufficient permission in 'perf stat'
- Print all machines in 'perf kvm report -vvv', not just the host
- Switch from SHA-1 to BLAKE2s for build ID generation, remove SHA-1
code
- Fix 'perf report's histogram entry collapsing with '-F' option
- Use system's cacheline size instead of a hardcoded value in 'perf
report'
- Allow filtering conversion by time range in 'perf data'
- Cover conversion to CTF using 'perf data' in 'perf test'
- Address newer glibc const-correctness (-Werror=discarded-qualifiers)
issues
- Fixes and improvements for ARM's CoreSight support, simplify ARM SPE
event config in 'perf mem', update docs for 'perf c2c' including the
ARM events it can be used with
- Build support for generating metrics from arch specific python
script, add extra AMD, Intel, ARM64 metrics using it
- Add AMD Zen 6 events and metrics
- Add JSON file with OpenHW Risc-V CVA6 hardware counters
- Add 'perf kvm' stats live testing
- Add more 'perf stat' tests to 'perf test'
- Fix segfault in `perf lock contention -b/--use-bpf`
- Fix various 'perf test' cases for s390
- Build system cleanups, bump minimum shellcheck version to 0.7.2
- Support building the capstone based annotation routines as a plugin
- Allow passing extra Clang flags via EXTRA_BPF_FLAGS
* tag 'perf-tools-for-v7.0-1-2026-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (255 commits)
perf test script: Add python script testing support
perf test script: Add perl script testing support
perf script: Allow the generated script to be a path
perf test: perf data --to-ctf testing
perf test: Test pipe mode with data conversion --to-json
perf json: Pipe mode --to-ctf support
perf json: Pipe mode --to-json support
perf check: Add libbabeltrace to the listed features
perf build: Allow passing extra Clang flags via EXTRA_BPF_FLAGS
perf test data_type_profiling.sh: Skip just the Rust tests if code_with_type workload is missing
tools build: Fix feature test for rust compiler
perf libunwind: Fix calls to thread__e_machine()
perf stat: Add no-affinity flag
perf evlist: Reduce affinity use and move into iterator, fix no affinity
perf evlist: Missing TPEBS close in evlist__close()
perf evlist: Special map propagation for tool events that read on 1 CPU
perf stat-shadow: In prepare_metric fix guard on reading NULL perf_stat_evsel
Revert "perf tool_pmu: More accurately set the cpus for tool events"
tools build: Emit dependencies file for test-rust.bin
tools build: Make test-rust.bin be removed by the 'clean' target
...
Replace deprecated DRM_DEV_ERROR() with drm_err_ratelimited() in the VOP2
register wait timeout paths to align with current DRM logging helpers and
avoid flooding the kernel log when timeouts repeat.
Signed-off-by: Hsieh Hung-En <hungen3108@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patch.msgid.link/20260209161621.6136-1-hungen3108@gmail.com
This patch series, from Benjamin Philip <benjamin.philip495@gmail.com>,
simplifies and clarifies the handling of output generated by Coccinelle
that is sent to standard error. By default, this information goes to
/dev/null. The patch series reminds the user of that and encourages
them to provide another file name.
Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
-----BEGIN PGP SIGNATURE-----
iQIzBAABCgAdFiEEnGZC8gbRfLXdcpA0F+92B3f5RZ0FAmmZ3sYACgkQF+92B3f5
RZ0PLg//Zf3ObDD4RTHw3gjlqYJmFY2I85qS6vj1rc0/VFRbvKH0AHC1l6GwqSNS
/rEBvnEy57UxlsKn6HVN+wYoPt9XiOeId4XeroW8efLp4xHT4TQHhjE19cYxre7D
Bp3Cs8GZuPkTh0xxozz6/Pr4oQRnrOtVbkgvYo8Yd+4X2KMbbhFyfOg0ft+Vb64h
7w0nvGHmEEmW0UOI77RPZ0ozC8JHSwqWaUCvpkFOEqO9MNh59+oWgtZCPv/kZCfl
VktsPfBN7bmxUZwuTgXnIheDj4Nst9XrZeSNinamaN0sEwPv08iiYPXSRxnIn/EV
PXEBeX7DrGHJ2V7dXwXbd4E4zMvdn2Hm399iFMlw9zEfI0RbmoI/uJL3IKCP5r5K
kHAmsQQbMxac3THvAQOZutJ79KJ70old7dAzkx2Dq9CWe1sZYltBrWRcSM9po6+r
T/RAu/YH04kQXyZ20Sk7lYoVVU7oTV12zBNhwq1aV92lM+4fZWh5Pp8klo2LgcJh
R0PLNjwFTA2LCQ6K14tOaNbxDg/87y5SVB9+xpPmRRnI7v2WeysPBVrVlKFES5+x
cwkxpFSga7XJ6ehNCj1uiBWv2VWiDlvu1cznCZmb2B8jOAwd8TfbF6+DdYHwmbrM
qnHV4LorsfKyIrSz3PaHqbjUiytQNlQmfpPDeNVJZSf8ZN5tLfc=
=+f+s
-----END PGP SIGNATURE-----
Merge tag 'cocci-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux
Pull coccinelle updates from Julia Lawall:
"This simplifies and clarifies the handling of output generated by
Coccinelle that is sent to standard error.
By default, this goes to /dev/null. Remind the user of that and
encourage them to provide another file name (Benjamin Philip)"
* tag 'cocci-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
Documentation: Coccinelle: document debug log handling
scripts: coccicheck: warn on unset debug file
scripts: coccicheck: simplify debug file handling
cleanups, and new hardware support. ntb_transport QP stats are
converted to seq_file, a tx_memcpy_offload module parameter is
introduced with associated ordering fixes, and a debugfs queue
name truncation bug is corrected. Additional fixes address format
specifier mismatches in ntb_tool and boundary conditions in the
Switchtec driver, while unused MSI helpers are removed and the
codebase migrates to dma_map_phys(). Intel Gen6 (Diamond Rapids)
NTB support is also added.
-----BEGIN PGP SIGNATURE-----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=UZw9
-----END PGP SIGNATURE-----
Merge tag 'ntb-7.0' of https://github.com/jonmason/ntb
Pull NTB (PCIe non-transparent bridge) updates from Jon Mason:
"NTB updates include debugfs improvements, correctness fixes, cleanups,
and new hardware support:
ntb_transport QP stats are converted to seq_file, a tx_memcpy_offload
module parameter is introduced with associated ordering fixes, and a
debugfs queue name truncation bug is corrected.
Additional fixes address format specifier mismatches in ntb_tool and
boundary conditions in the Switchtec driver, while unused MSI helpers
are removed and the codebase migrates to dma_map_phys().
Intel Gen6 (Diamond Rapids) NTB support is also added"
* tag 'ntb-7.0' of https://github.com/jonmason/ntb:
NTB: ntb_transport: Use seq_file for QP stats debugfs
NTB: ntb_transport: Fix too small buffer for debugfs_name
ntb/ntb_tool: correct sscanf format for u64 and size_t in tool_peer_mw_trans_write
ntb: intel: Add Intel Gen6 NTB support for DiamondRapids
NTB/msi: Remove unused functions
ntb: ntb_hw_switchtec: Increase MAX_MWS limit to 256
ntb: ntb_hw_switchtec: Fix array-index-out-of-bounds access
ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut
NTB: epf: allow built-in build
ntb: migrate to dma_map_phys instead of map_page
NTB: ntb_transport: Add 'tx_memcpy_offload' module option
NTB: ntb_transport: Remove unused 'retries' field from ntb_queue_entry
-----BEGIN PGP SIGNATURE-----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=Pkge
-----END PGP SIGNATURE-----
Merge tag 'io_uring-20260221' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring fixes from Jens Axboe:
- A fix for a missing URING_CMD128 opcode check, fixing an issue with
the SQE mixed mode support introduced in 6.19. Merged late due to
having multiple dependencies
- Add sqe->cmd size checking for big SQEs, similar to what we have for
normal sized SQEs
- Fix a race condition in zcrx, that leads to a double free
* tag 'io_uring-20260221' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
io_uring: Add size check for sqe->cmd
io_uring: add IORING_OP_URING_CMD128 to opcode checks
io_uring/zcrx: fix user_ref race between scrub and refill paths
phys_to_target_node() may assign a CXL Fixed Memory Window to the wrong NUMA
node when a CXL node resides in the gap of discontinuous System RAM node.
Fix this by checking both numa_meminfo and numa_reserved_meminfo, preferring
the reserved NID when the address appears in both.
-----BEGIN PGP SIGNATURE-----
iQFEBAABCgAuFiEEeOVYVaWZL5900a/pOQOGJssO/ZEFAmmZi4oQHHJwcHRAa2Vy
bmVsLm9yZwAKCRA5A4Ymyw79kR8xB/9Do5A06sOV7imvZJH/NZAQ8PbOuo3Ig8I0
XaBhsuq0VrfGEPuVE16DrHrpYSfO0aC1IM9UxUHqvNG9IJluioYhz/bYLatWyzJq
oj7cvQ+5q0sAr3EK7vnumKlP6U4jkMkBFhr2nEdw0yKVi2J0SXFY16FNXCefXzbO
kYG3agtccuSb3A7iDmXypbRZ9YkI69pq6xl+mnGU3qIrO6yicmZNJaoksPo6e7Fp
ycPb2/z6r8to5kygCv6oU+zgIjRkGoDp/71WkGPze0HcG3Xx2+eOQxYzc7RF1OQ8
HYa4bAeILHVUStmOs5KdgJorJDaiij07XlaO+xevqFIN9cMFRszw
=I0W0
-----END PGP SIGNATURE-----
Merge tag 'fixes-2026-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull memblock fix from Mike Rapoport:
"Fix detection of NUMA node for CXL windows
phys_to_target_node() may assign a CXL Fixed Memory Window to the
wrong NUMA node when a CXL node resides in the gap of discontinuous
System RAM node.
Fix this by checking both numa_meminfo and numa_reserved_meminfo,
preferring the reserved NID when the address appears in both"
* tag 'fixes-2026-02-21' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
mm: numa_memblks: Identify the accurate NUMA ID of CFMW
- Various bug fixes for the example schedulers and selftests.
-----BEGIN PGP SIGNATURE-----
iIQEABYKACwWIQTfIjM1kS57o3GsC/uxYfJx3gVYGQUCaZkltg4cdGpAa2VybmVs
Lm9yZwAKCRCxYfJx3gVYGR+3AQC2h+P8tZXpQ3tzNRgQ10KvekO+uetee4d3vb4O
db5FDwEAh5Binq/tRSzLm7XEb/YmmP2XmHmhmnbRQL69dzMt5gM=
=agf0
-----END PGP SIGNATURE-----
Merge tag 'sched_ext-for-7.0-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext
Pull sched_ext fixes from Tejun Heo:
- Various bug fixes for the example schedulers and selftests
* tag 'sched_ext-for-7.0-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
tools/sched_ext: fix getopt not re-parsed on restart
tools/sched_ext: scx_userland: fix data races on shared counters
tools/sched_ext: scx_pair: fix stride == 0 crash on single-CPU systems
tools/sched_ext: scx_central: fix CPU_SET and skeleton leak on early exit
tools/sched_ext: scx_userland: fix stale data on restart
tools/sched_ext: scx_flatcg: fix potential stack overflow from VLA in fcg_read_stats
selftests/sched_ext: Fix rt_stall flaky failure
tools/sched_ext: scx_userland: fix restart and stats thread lifecycle bugs
tools/sched_ext: scx_central: fix sched_setaffinity() call with the set size
tools/sched_ext: scx_flatcg: zero-initialize stats counter array
-----BEGIN PGP SIGNATURE-----
iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAmmYg8MACgkQiiy9cAdy
T1HLbAwAjr1Eg4hDbI1GBLxFkB5pTxYmnHtj8eFJLNXpmpfe4/4f29e7S7hs3ChX
UIIbFAFKPWAC7dFwAQ8rnYw4e3HPv+eFZxDzfi9Org8TxYGL9kew8JnqZtvCYtQd
bHFndrZW3C8x2kj08O6uA0WWIhpCffZ4avig4Azkw5a6ukLzEpsLcODyJb/9Dx4Y
EbHNjYZX3MMbbtNh47Bo2JVNjk5Nyxzf1kSdA46eHa5aQoy8DbMuJqFj0b9oUxqh
E6QBPeZ0aZuSQZQUh3LtHnDS/aqFAn4zchtwALhHephU3SQZ1pLR8Uz+IwFI70MK
bOCWI//LCGvdcXqJ6rspLplte9O6SoFNyqo+PuH1lnWCknnFNVKJWlOiu9LZnNe0
G99VONqwdKlXs5MDVp2LVpW5VbxJEw5TsrWGQJL6FGMGWiSDPt4rpcA/ugokKhVr
aeqlV3dWXBJcKIE9G+8XHNn5lwsgfI4bfs8phdrKxEVSshEZbu/B2hg6X+f2guWJ
poF2ZJ4g
=UcGf
-----END PGP SIGNATURE-----
Merge tag 'v7.0-rc-part2-ksmbd-server-fixes' of git://git.samba.org/ksmbd
Pull smb server fixes from Steve French:
"Two small fixes:
- fix potential deadlock
- minor cleanup"
* tag 'v7.0-rc-part2-ksmbd-server-fixes' of git://git.samba.org/ksmbd:
ksmbd: call ksmbd_vfs_kern_path_end_removing() on some error paths
smb: server: Remove duplicate include of misc.h
The current debug documentation does not mention that logs are printed
to stdout unless DEBUG_FILE is set. It also doesn't mention that
Coccinelle cannot overwrite debug files.
Document this behaviour in the examples and reference it in the
debugging section.
Signed-off-by: Benjamin Philip <benjamin.philip495@gmail.com>
Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
coccicheck prints debug logs to stdout unless a debug file has been set.
This makes it hard to read coccinelle's suggested changes, especially
for someone new to coccicheck.
From this commit, we warn about this behaviour from within the script on
an unset debug file. Explicitly setting the debug file to /dev/null
suppresses the warning while keeping the default.
Signed-off-by: Benjamin Philip <benjamin.philip495@gmail.com>
Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
This commit separates handling unset files and pre-existing files. It
also eliminates a duplicated check for unset files in run_cmd_parmap().
Signed-off-by: Benjamin Philip <benjamin.philip495@gmail.com>
Signed-off-by: Julia Lawall <julia.lawall@inria.fr>
