| Age | Commit message (Collapse) | Author |
|---|
|
Add definitions and helpers for the BPT/BRA protocol. Peripheral
drivers (aka ASoC codec drivers) can use this API to send bulk data
such as firmware or tables. The design intent is however NOT to
directly use this API but to rely on an intermediate regmap layer.
The API is only available when no other audio streams have been
allocated, and only one BTP/BRA stream is allowed per link. To avoid
the addition of yet another lock, the refcount tests are handled in
the stream master_runtime alloc/free routines where the bus_lock is
already held. Another benefit of this approach is that the same
bus_lock is used to handle runtime and port linked lists, which
reduces the potential for misaligned configurations.
In addition to exclusion with audio streams, BPT transfers have a lot
of overhead, specifically registers writes are needed to enable
transport in DP0. Most DMAs don't handle too well very small data sets
and they may have alignment limitations.
The size and alignment requirements are for now not handled by the
core but must be checked by platform-specific drivers.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Tested-by: shumingf@realtek.com
Link: https://lore.kernel.org/r/20250227140615.8147-8-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
|
|
In the existing definition of sdw_stream_runtime, the 'type' member is
never set and defaults to PCM. To prepare for the BPT/BRA support, we
need to special-case streams and make use of the 'type'.
No functional change for now, the implicit PCM type is now explicit.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Tested-by: shumingf@realtek.com
Link: https://lore.kernel.org/r/20250227140615.8147-5-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
|
|
BPT/BRA need to be special cased, i.e. there's no point in using the
bandwidth allocation since the entire frame can be used.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.dev>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Tested-by: shumingf@realtek.com
Link: https://lore.kernel.org/r/20250227140615.8147-4-yung-chuan.liao@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
|
|
We need the fixes in here as well to build on top of.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
|
https://gitlab.freedesktop.org/agd5f/linux into drm-next
amdgpu:
- Fix spelling typos
- RAS updates
- VCN 5.0.1 updates
- SubVP fixes
- DCN 4.0.1 fixes
- MSO DPCD fixes
- DIO encoder refactor
- PCON fixes
- Misc cleanups
- DMCUB fixes
- USB4 DP fixes
- DM cleanups
- Backlight cleanups and fixes
- Support platform backlight curves
- Misc code cleanups
- SMU 14 fixes
- JPEG 4.0.3 reset updates
- SR-IOV fixes
- SVM fixes
- GC 12 DCC fixes
- DC DCE 6.x fix
- Hiberation fix
amdkfd:
- Fix possible NULL pointer in queue validation
- Remove unnecessary CP domain validation
- SDMA queue reset support
- Add per process flags
radeon:
- Fix spelling typos
- RS400 hyperZ fix
UAPI:
- Add KFD per process flags for setting precision
Proposed user space: https://github.com/ROCm/ROCR-Runtime/commit/2a64fa5e06e80e0af36df4ce0c76ae52eeec0a9d
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250307211051.1880472-1-alexander.deucher@amd.com
|
|
This validates at compile time that the signatures match what is in the
header file. It highlights one annoyance with the compile-time check,
which is that it can only be used with functions marked unsafe.
If the function is not unsafe, then this error is emitted:
error[E0308]: `if` and `else` have incompatible types
--> <linux>/drivers/gpu/drm/drm_panic_qr.rs:987:19
|
986 | #[export]
| --------- expected because of this
987 | pub extern "C" fn drm_panic_qr_max_data_size(version: u8, url_len: usize) -> usize {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^ expected unsafe fn, found safe fn
|
= note: expected fn item `unsafe extern "C" fn(_, _) -> _ {kernel::bindings::drm_panic_qr_max_data_size}`
found fn item `extern "C" fn(_, _) -> _ {drm_panic_qr_max_data_size}`
The signature declarations are moved to a header file so it can be
included in the Rust bindings helper, and the extern keyword is removed
as it is unnecessary.
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Reviewed-by: Tamir Duberstein <tamird@gmail.com>
Acked-by: Simona Vetter <simona.vetter@ffwll.ch>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20250303-export-macro-v3-5-41fbad85a27f@google.com
[ Fixed `rustfmt`. Moved on top the unsafe requirement comment to follow
the usual style, and slightly reworded it for clarity. Formatted
bindings helper comment. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
|
|
This moves the rust_fmt_argument function over to use the new #[export]
macro, which will verify at compile-time that the function signature
matches what is in the header file.
Reviewed-by: Andreas Hindborg <a.hindborg@kernel.org>
Reviewed-by: Tamir Duberstein <tamird@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20250303-export-macro-v3-4-41fbad85a27f@google.com
[ Removed period as requested by Andy. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
|
|
This patch adds RDMA_TRANSPORT_RX and RDMA_TRANSPORT_TX as a new flow
table type for matcher creation.
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://patch.msgid.link/2287d8c50483e880450c7e8e08d9de34cdec1b14.1741261611.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Add support for file descriptor array attribute for GET_CONTEXT
commands.
Check that the file descriptor (fd) array represents fds for valid UCAPs.
Store the enabled UCAPs from the fd array as a bitmask in ib_ucontext.
Signed-off-by: Chiara Meiohas <cmeiohas@nvidia.com>
Link: https://patch.msgid.link/ebfb30bc947e2259b193c96a319c80e82599045b.1741261611.git.leon@kernel.org
Reviewed-by: Yishai Hadas <yishaih@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Implement a new User CAPabilities (UCAP) API to provide fine-grained
control over specific firmware features.
This approach offers more granular capabilities than the existing Linux
capabilities, which may be too generic for certain FW features.
This mechanism represents each capability as a character device with
root read-write access. Root processes can grant users special
privileges by allowing access to these character devices (e.g., using
chown).
UCAP character devices are located in /dev/infiniband and the class path
is /sys/class/infiniband_ucaps.
Signed-off-by: Chiara Meiohas <cmeiohas@nvidia.com>
Link: https://patch.msgid.link/5a1379187cd21178e8554afc81a3c941f21af22f.1741261611.git.leon@kernel.org
Reviewed-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"33 hotfixes. 24 are cc:stable and the remainder address post-6.13
issues or aren't considered necessary for -stable kernels.
26 are for MM and 7 are for non-MM.
- "mm: memory_failure: unmap poisoned folio during migrate properly"
from Ma Wupeng fixes a couple of two year old bugs involving the
migration of hwpoisoned folios.
- "selftests/damon: three fixes for false results" from SeongJae Park
fixes three one year old bugs in the SAMON selftest code.
The remainder are singletons and doubletons. Please see the individual
changelogs for details"
* tag 'mm-hotfixes-stable-2025-03-08-16-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (33 commits)
mm/page_alloc: fix uninitialized variable
rapidio: add check for rio_add_net() in rio_scan_alloc_net()
rapidio: fix an API misues when rio_add_net() fails
MAINTAINERS: .mailmap: update Sumit Garg's email address
Revert "mm/page_alloc.c: don't show protection in zone's ->lowmem_reserve[] for empty zone"
mm: fix finish_fault() handling for large folios
mm: don't skip arch_sync_kernel_mappings() in error paths
mm: shmem: remove unnecessary warning in shmem_writepage()
userfaultfd: fix PTE unmapping stack-allocated PTE copies
userfaultfd: do not block on locking a large folio with raised refcount
mm: zswap: use ATOMIC_LONG_INIT to initialize zswap_stored_pages
mm: shmem: fix potential data corruption during shmem swapin
mm: fix kernel BUG when userfaultfd_move encounters swapcache
selftests/damon/damon_nr_regions: sort collected regiosn before checking with min/max boundaries
selftests/damon/damon_nr_regions: set ops update for merge results check to 100ms
selftests/damon/damos_quota: make real expectation of quota exceeds
include/linux/log2.h: mark is_power_of_2() with __always_inline
NFS: fix nfs_release_folio() to not deadlock via kcompactd writeback
mm, swap: avoid BUG_ON in relocate_cluster()
mm: swap: use correct step in loop to wait all clusters in wait_for_allocation()
...
|
|
Fix typos and whitespace errors.
Link: https://lore.kernel.org/r/20250307231715.438518-1-helgaas@kernel.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
|
---------------------------------------------------------------------
Hi,
This is preparation series targeted for mlx5-next, which will be used
later in RDMA.
This series adds RDMA transport steering logic which would allow the
vport group manager to catch control packets from VFs and forward them
to control SW to help with congestion control.
In addition, RDMA will provide new set of APIs to better control exposed
FW capabilities and this series is needed to make sure mlx5 command
interface will ensure that privileged commands can always proceed,
Thanks
Link: https://lore.kernel.org/all/cover.1740574103.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
* mlx5-next:
net/mlx5: fs, add RDMA TRANSPORT steering domain support
net/mlx5: Query ADV_RDMA capabilities
net/mlx5: Limit non-privileged commands
net/mlx5: Allow the throttle mechanism to be more dynamic
net/mlx5: Add RDMA_CTRL HW capabilities
|
|
Add RX and TX RDMA_TRANSPORT flow table namespace, and the ability
to create flow tables in those namespaces.
The RDMA_TRANSPORT RX and TX are per vport.
Packets will traverse through RDMA_TRANSPORT_RX after RDMA_RX and through
RDMA_TRANSPORT_TX before RDMA_TX, ensuring proper control and management.
RDMA_TRANSPORT domains are managed by the vport group manager.
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/a6b550d9859a197eafa804b9a8d76916ca481da9.1740574103.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Query ADV_RDMA capabilities which provide information for
advanced RDMA related features.
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Link: https://patch.msgid.link/e3e6ede03ea31cd201078dcdd4e407608e4a5a87.1740574103.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Limit non-privileged UID commands to half of the available command slots
when privileged UIDs are present.
Privileged throttle commands will not be limited.
Use an xarray to store privileged UIDs. Add insert and remove functions
for privileged UIDs management.
Non-user commands (with uid 0) are not limited.
Signed-off-by: Chiara Meiohas <cmeiohas@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/d2f3dd9a0dbad3c9f2b4bb0723837995e4e06de2.1740574103.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Previously, throttle commands were identified and limited based on
opcode. These commands were limited to half the command slots using a
semaphore, and callback commands checked the opcode to determine
semaphore release.
To allow exceptions, we introduce a variable to indicate when the
throttle lock is held. This allows scenarios where throttle commands
are not limited. Callback functions use this variable to determine
if the throttle semaphore needs to be released.
This patch contains no functional changes. It's a preparation for the
next patch.
Signed-off-by: Chiara Meiohas <cmeiohas@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Link: https://patch.msgid.link/055d975edeb816ac4c0fd1e665c6157d11947d26.1740574103.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Add RDMA_CTRL UCTX capabilities and add the RDMA_CTRL general object
type in hca_cap_2.
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Chiara Meiohas <cmeiohas@nvidia.com>
Link: https://patch.msgid.link/ef7eb24be9a6f247ab52e8b4480350072e5182f5.1740574103.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
|
|
Move the more esoteric helpers for netdev instance lock to
a dedicated header. This avoids growing netdevice.h to infinity
and makes rebuilding the kernel much faster (after touching
the header with the helpers).
The main netdev_lock() / netdev_unlock() functions are used
in static inlines in netdevice.h and will probably be used
most commonly, so keep them in netdevice.h.
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20250307183006.2312761-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
New register has been introduced with PTL in the vendor specific SHIM
registers, outside of the IPs itself for microphone privacy status handling.
Via the PVCCS register the current microphone privacy status can be checked
and the interrupt generation on status change can be enabled/disabled.
The status change interrupt is routed to the owner of the interface
(DSP/host).
The PVCCS is provided for each sublink under the IP to make it possible to
control the interrupt generation per sublink.
On status change the MDSTSCHG bit needs to be cleared for all sublink of
the interface to be able to detect future changes in privacy.
The status bit (MDSTS) is volatile in all PVCCS register, it reflects the
current state of the GPIO signal.
Microphone privacy is a hardware feature (if enabled and configured that
way), the host has only passive, monitoring role.
The added functions are generic to be future proof if the mic privacy
support is extended beyond Soundwire and DMIC links.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://patch.msgid.link/20250307112816.1495-7-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
|
|
ACE3 (Panther Lake) introduced support for microphone privacy feature which
can - in hardware - mute incoming audio data based on a state of a physical
switch.
The change in the privacy state is delivered through interface IP blocks
and can only be handled by the link owner.
In Intel platforms Soundwire is for example host owned, so the interrupt
can only be handled by the host.
Since the input stream is going to be muted by hardware, the host needs to
send a message to firmware about the change in privacy so it can execute a
fade out/in to enhance user experience.
The support for microphone privacy can be queried from the HW_CONFIG data
under the INTEL_MIC_PRIVACY_CAP tuple. This is Intel specific data, the
core will pass it to platform code if the intel_configure_mic_privacy()
callback is provided.
Platform code can call sof_ipc4_mic_privacy_state_change() to send the IPC
message to the firmware on state change.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://patch.msgid.link/20250307112816.1495-6-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
|
|
The static function devm_pci_epc_match() is only invoked within the
devm_pci_epc_destroy(). However, since it was initially introduced,
this new API has had no callers.
Thus, remove both the unused API and the static function.
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/20250217-remove_api-v2-1-b169c9117045@quicinc.com
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
|
|
Add a helper function to convert a size to the representation used by the
Resizable BAR Capability Register.
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20250131182949.465530-11-cassel@kernel.org
[mani: squashed the change that added PCIe spec reference to comments
from https://lore.kernel.org/linux-pci/20250219171454.2903059-2-cassel@kernel.org]
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
|
|
A resizable BAR is different from a normal BAR in a few ways:
- The minimum size of a resizable BAR is 1 MB.
- Each BAR that is resizable has a Capability and Control register in
the Resizable BAR Capability structure.
These registers contain the supported sizes and the currently selected
size of a resizable BAR.
The supported sizes is a bitmap of the supported sizes. The selected size
is a single value that is equal to one of the supported sizes.
A resizable BAR thus has to be configured differently than a
BAR_PROGRAMMABLE BAR, which usually sets the BAR size/mask in a vendor
specific way.
The PCI endpoint framework currently does not support resizable BARs.
Add a BAR type BAR_RESIZABLE, so that an EPC driver can support resizable
BARs properly.
Note that the pci_epc_set_bar() API takes a struct pci_epf_bar which tells
the EPC driver how it wants to configure the BAR.
struct pci_epf_bar only has a single size struct member.
This means that an EPC driver will only be able to set a single supported
size. This is perfectly fine, as we do not need the complexity of allowing
a host to change the size of the BAR. If someone ever wants to support
resizing a resizable BAR, the pci_epc_set_bar() API can be extended in the
future.
With these changes, we allow an EPF driver to configure the size of
Resizable BARs, rather than forcing them to a 1 MB size.
Signed-off-by: Niklas Cassel <cassel@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20250131182949.465530-10-cassel@kernel.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
[kwilczynski: commit log]
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
|
|
To support multiple PTP clocks, the VDSO data structure needs to be
reworked. All clock specific data will end up in struct vdso_clock and in
struct vdso_time_data there will be an array of VDSO clocks.
Now that all preparatory changes are in place:
Split the clock related struct members into a separate struct
vdso_clock. Make sure all users are aware, that vdso_time_data is no longer
initialized as an array and vdso_clock is now the array inside
vdso_data. Remove the vdso_clock define, which mapped it to vdso_time_data
for the transition.
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250303-vdso-clock-v1-19-c1b5c69a166f@linutronix.de
|
|
Architecture related vdso data is required in the fast path when reading
CLOCK_MONOTONIC or CLOCK_REALTIME. At the moment, this information is
located at the end of the vdso_time_data structure, which is a suboptimal
cache layout.
Move the architecture specific VDSO data right before the basetime
information, which is always required. This change does not have an impact
on architectures with CONFIG_ARCH_HAS_VDSO_DATA=n. Architectures, which
have it enabled, gain a better cache layout.
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250303-vdso-clock-v1-18-c1b5c69a166f@linutronix.de
|
|
To support multiple PTP clocks, the VDSO data structure needs to be
reworked. All clock specific data will end up in struct vdso_clock and in
struct vdso_time_data there will be an array of VDSO clocks. For now,
vdso_clock is simply a define which maps vdso_clock to vdso_time_data.
Prepare all functions which need the pointer to the vdso_clock array to
work well after the structures get reworked. Replace the struct vdso_time_data
pointer with a struct vdso_clock pointer where applicable.
No functional change.
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250303-vdso-clock-v1-5-c1b5c69a166f@linutronix.de
|
|
Multiple PTP clocks, which are independent of timekeeping, are required for
systems, which utilize PTP for synchronizing e.g. automation systems
independent of clock TAI.
PTP clocks are slow to access, but applications require fast access to the
relevant time similar to the regular timekeeping relevant clocks.
To prepare for that the VDSO data representation must be reworked. For
transition to the new structure of the vdso, add a define which maps
vdso_clock to vdso_data. This will be removed when all users are updated
step by step.
No functional change.
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250303-vdso-clock-v1-4-c1b5c69a166f@linutronix.de
|
|
vdso_time_data is not cacheline aligned at the moment. When instantiating
an array, the start of the second array member is not cache line aligned.
This increases the number of the required cache lines which needs to be
read when handling e.g. CLOCK_MONOTONIC_RAW, because the data spawns an
extra cache line if the previous data does not end at a cache line
boundary.
Therefore make struct vdso_time_data cacheline aligned.
Signed-off-by: Anna-Maria Behnsen <anna-maria@linutronix.de>
Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250303-vdso-clock-v1-3-c1b5c69a166f@linutronix.de
|
|
The vDSO implementation can only include headers from the vdso/
namespace. To enable the usage of ____cacheline_aligned from
the vDSO, move it and its dependencies into a new header vdso/cache.h.
Keep compatibility by including vdso/cache.h from linux/cache.h.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250303-vdso-clock-v1-1-c1b5c69a166f@linutronix.de
|
|
cpio extraction currently does a memcpy to ensure that the archive hex
fields are null terminated for simple_strtoul(). simple_strntoul() will
allow us to avoid the memcpy.
Signed-off-by: David Disseldorp <ddiss@suse.de>
Link: https://lore.kernel.org/r/20250304061020.9815-4-ddiss@suse.de
Signed-off-by: Christian Brauner <brauner@kernel.org>
|
|
The acomp request flags field duplicates the base request flags
and is confusing. Remove it.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
|
|
Unlike the decompression code, the compression code in LZO never
checked for output overruns. It instead assumes that the caller
always provides enough buffer space, disregarding the buffer length
provided by the caller.
Add a safe compression interface that checks for the end of buffer
before each write. Use the safe interface in crypto/lzo.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
|
|
Move the definition of struct crypto_type into internal.h as it
is only used by API implementors and not algorithm implementors.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
|
|
The vanilla has_capability() function has been unused since 2018's
commit dcb569cf6ac9 ("Smack: ptrace capability use fixes")
Remove it.
Fixup a comment in security/commoncap.c that referenced it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: Serge Hallyn <sergeh@kernel.org>
|
|
Since we're going to approach integer overflow mitigation a type at a
time, we need to enable all of the associated sanitizers, and then opt
into types one at a time.
Rename the existing "signed wrap" sanitizer to just the entire topic area:
"integer wrap". Enable the implicit integer truncation sanitizers, with
required callbacks and tests.
Notably, this requires features (currently) only available in Clang,
so we can depend on the cc-option tests to determine availability
instead of doing version tests.
Link: https://lore.kernel.org/r/20250307041914.937329-1-kees@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
|
|
netpoll tries to refill the skb queue on every packet send, independently
if packets are being consumed from the pool or not. This was
particularly problematic while being called from printk(), where the
operation would be done while holding the console lock.
Introduce a more intelligent approach to skb queue management. Instead
of constantly attempting to refill the queue, the system now defers
refilling to a work queue and only triggers the workqueue when a buffer
is actually dequeued. This change significantly reduces operations with
the lock held.
Add a work_struct to the netpoll structure for asynchronous refilling,
updating find_skb() to schedule refill work only when necessary (skb is
dequeued).
These changes have demonstrated a 15% reduction in time spent during
netpoll_send_msg operations, especially when no SKBs are not consumed
from consumed from pool.
When SKBs are being dequeued, the improvement is even better, around
70%, mainly because refilling the SKB pool is now happening outside of
the critical patch (with console_owner lock held).
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250304-netpoll_refill_v2-v1-1-06e2916a4642@debian.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
When introduced in commit 61723b393292 ("tcp: ulp: add functions to dump
ulp-specific information"), the whole ULP diag info has been exported
only if the requester had CAP_NET_ADMIN.
It looks like not everything is sensitive, and some info can be exported
to all users in order to ease the debugging from the userspace side
without requiring additional capabilities. Each layer should then decide
what can be exposed to everybody. The 'net_admin' boolean is then passed
to the different layers.
On kTLS side, it looks like there is nothing sensitive there: version,
cipher type, tx/rx user config type, plus some flags. So, only some
metadata about the configuration, no cryptographic info like keys, etc.
Then, everything can be exported to all users.
On MPTCP side, that's different. The MPTCP-related sequence numbers per
subflow should certainly not be exposed to everybody. For example, the
DSS mapping and ssn_offset would give all users on the system access to
narrow ranges of values for the subflow TCP sequence numbers and
MPTCP-level DSNs, and then ease packet injection. The TCP diag interface
doesn't expose the TCP sequence numbers for TCP sockets, so best to do
the same here. The rest -- token, IDs, flags -- can be exported to
everybody.
Acked-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250306-net-next-tcp-ulp-diag-net-admin-v1-2-06afdd860fc9@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
phylink_init_eee() is currently unused.
It was last added in 2019 by
commit 86e58135bc4a ("net: phylink: add phylink_init_eee() helper")
but it didn't actually wire a use up.
It had previous been removed in 2017 by
commit 939eae25d9a5 ("phylink: remove phylink_init_eee()").
Remove it again.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/20250306184534.246152-1-linux@treblig.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
This removes .of_node from 'struct power_supply', since there
is already a copy in .dev.of_node and there is no need to have
two copies.
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20250225-psy-core-convert-to-fwnode-v1-1-d5e4369936bb@collabora.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
|
|
The previous patches in this series removed the only caller
and only setter of this method.
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20250307230225.128775-4-linux@treblig.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
|
|
power_supply_set_battery_charged() has been unused since 2019's
commit 0f884f8a090e ("ARM: pxa: remove raumfeld board files and
defconfig")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://lore.kernel.org/r/20250307230225.128775-2-linux@treblig.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
|
|
TCB hardware is capable of capturing the timer value to registers RA and
RB. Add these registers as capture extensions.
Signed-off-by: Bence Csókás <csokas.bence@prolan.hu>
Link: https://lore.kernel.org/r/20250306134441.582819-3-csokas.bence@prolan.hu
Signed-off-by: William Breathitt Gray <wbg@kernel.org>
|
|
Add interrupt servicing to allow userspace to wait for the following:
* Change-of-state caused by external trigger
* Capture of timer value into RA/RB
* Compare to RC register
* Overflow
Signed-off-by: Bence Csókás <csokas.bence@prolan.hu>
Link: https://lore.kernel.org/r/20250306134441.582819-2-csokas.bence@prolan.hu
Signed-off-by: William Breathitt Gray <wbg@kernel.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Restore the previous behavior of the ACPI platform_profile sysfs
interface that has been changed recently in a way incompatible with
the existing user space (Mario Limonciello)"
* tag 'acpi-6.14-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
platform/x86/amd: pmf: Add balanced-performance to hidden choices
platform/x86/amd: pmf: Add 'quiet' to hidden choices
ACPI: platform_profile: Add support for hidden choices
|
|
Pull block fixes from Jens Axboe:
- NVMe pull request via Keith:
- TCP use after free fix on polling (Sagi)
- Controller memory buffer cleanup fixes (Icenowy)
- Free leaking requests on bad user passthrough commands (Keith)
- TCP error message fix (Maurizio)
- TCP corruption fix on partial PDU (Maurizio)
- TCP memory ordering fix for weakly ordered archs (Meir)
- Type coercion fix on message error for TCP (Dan)
- Name the RQF flags enum, fixing issues with anon enums and BPF import
of it
- ublk parameter setting fix
- GPT partition 7-bit conversion fix
* tag 'block-6.14-20250306' of git://git.kernel.dk/linux:
block: Name the RQF flags enum
nvme-tcp: fix signedness bug in nvme_tcp_init_connection()
block: fix conversion of GPT partition name to 7-bit
ublk: set_params: properly check if parameters can be applied
nvmet-tcp: Fix a possible sporadic response drops in weakly ordered arch
nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()
nvme-tcp: Fix a C2HTermReq error message
nvmet: remove old function prototype
nvme-ioctl: fix leaked requests on mapping error
nvme-pci: skip CMB blocks incompatible with PCI P2P DMA
nvme-pci: clean up CMBMSC when registering CMB fails
nvme-tcp: fix possible UAF in nvme_tcp_poll
|
|
Add support for more per-process flags starting with option to configure
MFMA precision for gfx 9.5
v2: Change flag name to KFD_PROC_FLAG_MFMA_HIGH_PRECISION
Remove unused else condition
v3: Bump the KFD API version
v4: Missed SH_MEM_CONFIG__PRECISION_MODE__SHIFT define. Added it.
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Amber Lin <Amber.Lin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
|
|
Add the remaining SHF_ flags, as listed in the "Executable and
Linkable Format" Wikipedia page and the System V Application Binary
Interface[1]. This allows drivers to load and parse ELF images that use
some of those flags.
In particular, an upcoming change to the Nouveau GPU driver will
use some of the flags.
Link: https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.sheader.html#sh_flags [1]
Signed-off-by: Timur Tabi <ttabi@nvidia.com>
Link: https://lore.kernel.org/r/20250307171417.267488-1-ttabi@nvidia.com
Signed-off-by: Kees Cook <kees@kernel.org>
|
|
This reverts commit 4d94f05558271654670d18c26c912da0c1c15549 which has
problems (see [1]) and is no longer needed since 581dd2dc168f
("Bluetooth: hci_event: Fix using rcu_read_(un)lock while iterating")
has reworked the code where the original bug has been found.
[1] Link: https://lore.kernel.org/linux-bluetooth/877c55ci1r.wl-tiwai@suse.de/T/#t
Fixes: 4d94f0555827 ("Bluetooth: hci_core: Fix sleeping function called from invalid context")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
|
|
Per PCIe r6.0, sec 7.8.6.2, devices can advertise Resizable BAR sizes up to
128 TB in the Resizable BAR Capability register. Larger sizes can be
advertised via the Capability register, but that requires an API change.
Update pci_rebar_get_possible_sizes() and pbus_size_mem() to increase the
sizes we currently support from 512 GB to 128 TB.
Link: https://lore.kernel.org/r/20250307053535.44918-1-daizhiyuan@phytium.com.cn
Signed-off-by: Zhiyuan Dai <daizhiyuan@phytium.com.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
|
