| Age | Commit message (Collapse) | Author | Files | Lines |
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Group all of the declarations of functions that belong to the ACPI
processor idle driver together in one place in processor.h.
While at it, drop the unnecessary extern modifier from the declaraions
of two functions.
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Link: https://patch.msgid.link/20250911112408.1668431-3-lihuisong@huawei.com
[ rjw: Subject and changelog rewrite ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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In Qualcomm SoCs, firmware loading for Serial Engines (SE) within the QUP
hardware has traditionally been managed by TrustZone (TZ). This restriction
poses a significant challenge for developers, as it limits their ability to
enable various protocols on any of the SEs from the Linux side, reducing
flexibility.
Load the firmware to QUP SE based on the 'firmware-name' property specified
in devicetree at bootup time.
Co-developed-by: Mukesh Kumar Savaliya <mukesh.savaliya@oss.qualcomm.com>
Signed-off-by: Mukesh Kumar Savaliya <mukesh.savaliya@oss.qualcomm.com>
Signed-off-by: Viken Dadhaniya <viken.dadhaniya@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250911043256.3523057-4-viken.dadhaniya@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
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Many arm64 and x86_64 CPUs can compute two SHA-256 hashes in nearly the
same speed as one, if the instructions are interleaved. This is because
SHA-256 is serialized block-by-block, and two interleaved hashes take
much better advantage of the CPU's instruction-level parallelism.
Meanwhile, a very common use case for SHA-256 hashing in the Linux
kernel is dm-verity and fs-verity. Both use a Merkle tree that has a
fixed block size, usually 4096 bytes with an empty or 32-byte salt
prepended. Usually, many blocks need to be hashed at a time. This is
an ideal scenario for 2-way interleaved hashing.
To enable this optimization, add a new function sha256_finup_2x() to the
SHA-256 library API. It computes the hash of two equal-length messages,
starting from a common initial context.
For now it always falls back to sequential processing. Later patches
will wire up arm64 and x86_64 optimized implementations.
Note that the interleaving factor could in principle be higher than 2x.
However, that runs into many practical difficulties and CPU throughput
limitations. Thus, both the implementations I'm adding are 2x. In the
interest of using the simplest solution, the API matches that.
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20250915160819.140019-2-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
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https://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm64 changes for 6.17, round #3
- Invalidate nested MMUs upon freeing the PGD to avoid WARNs when
visiting from an MMU notifier
- Fixes to the TLB match process and TLB invalidation range for
managing the VCNR pseudo-TLB
- Prevent SPE from erroneously profiling guests due to UNKNOWN reset
values in PMSCR_EL1
- Fix save/restore of host MDCR_EL2 to account for eagerly programming
at vcpu_load() on VHE systems
- Correct lock ordering when dealing with VGIC LPIs, avoiding scenarios
where an xarray's spinlock was nested with a *raw* spinlock
- Permit stage-2 read permission aborts which are possible in the case
of NV depending on the guest hypervisor's stage-2 translation
- Call raw_spin_unlock() instead of the internal spinlock API
- Fix parameter ordering when assigning VBAR_EL1
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Remove default values for PMC PLL Analog Control Register(ACR) as the
values are specific for each SoC and PLL and load them from PLL
characteristics structure
Co-developed-by: Andrei Simion <andrei.simion@microchip.com>
Signed-off-by: Andrei Simion <andrei.simion@microchip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
[nicolas.ferre@microchip.com: fix pll acr write sequence, preserve val]
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
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The presence of FEAT_GCIE_LEGACY is now handled as a CPU
feature. Therefore, drop the check and flag from the GIC driver and
gic_kvm_info as it is no longer required or used by KVM.
Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
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We currently access ICC_SRE_EL2 at each load/put on VHE, and on each
entry/exit on nVHE. Both are quite onerous on NV, as this register
always traps.
We do this to make sure the EL1 guest doesn't flip between v2 and v3
behind our back. But all modern implementations have dropped v2,
and this is just overhead.
At the same time, the GICv5 spec has been fixed to allow access to
ICC_SRE_EL2 in legacy mode. Use this opportunity to replace the
GICv5 checks for v2 compat checks, with an ad-hoc static key.
Co-developed-by: Sascha Bischoff <sascha.bischoff@arm.com>
Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>
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* kvm-arm64/mmio-rcu:
: .
: Speed up MMIO registration by avoiding unnecessary RCU synchronisation,
: courtesy of Keir Fraser (20250909100007.3136249-1-keirf@google.com).
: .
KVM: Avoid synchronize_srcu() in kvm_io_bus_register_dev()
KVM: Implement barriers before accessing kvm->buses[] on SRCU read paths
KVM: arm64: vgic: Explicitly implement vgic_dist::ready ordering
KVM: arm64: vgic-init: Remove vgic_ready() macro
Signed-off-by: Marc Zyngier <maz@kernel.org>
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Introduce underlying __TRAILING_OVERLAP() macro to let callers apply
atributes to trailing overlapping members.
For instance, the code below:
| struct flex {
| size_t count;
| int data[];
| };
| struct {
| struct flex f;
| struct foo a;
| struct boo b;
| } __packed instance;
can now be changed to the following, and preserve the __packed
attribute:
| __TRAILING_OVERLAP(struct flex, f, data, __packed,
| struct foo a;
| struct boo b;
| ) instance;
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/f80c529b239ce11f0a51f714fe00ddf839e05f5e.1758115257.git.gustavoars@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
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Currently, TRAILING_OVERLAP() token-pastes the FAM parameter into the
name of internal pdding member `__offset_to_##FAM`. This forces FAM to
be a single identifier, which prevents callers from using a FAM when
it's a nested member. For instance, see the following scenario:
| struct flex {
| size_t count;
| int data[];
| };
| struct foo {
| int hdr_foo;
| struct flex f;
| };
| struct composite {
| struct foo hdr;
| int data[100];
| };
In this case, it'd be useful if TRAILING_OVERLAP() could be used in
the following way:
| struct composite {
| TRAILING_OVERLAP(struct foo, hdr, f.data,
| int data[100];
| );
| };
However, this is not current possible due to the token concatenation
in `__offset_to_##FAM`, which fails when FAM contains a dot.
So, remove token-pasting and use the fixed internal name
`__offset_to_FAM` and, with this, expand the capabilities of
TRAILING_OVERLAP(). :)
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/13b3e0a69aad837b4e32ca8269b9d91bf1fbe9ef.1758115257.git.gustavoars@kernel.org
Signed-off-by: Kees Cook <kees@kernel.org>
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Merge the immutable branch dt into next, to allow the DT bindings to be
tested together with changes that are targeted for v6.18.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Add required syscon compatible and #power-domain-cells to the APMU
controller. This is required for the SoC's power domain controller as
the registers are shared.
Device tree bindings for said power domains are also added.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Duje Mihanović <duje@dujemihanovic.xyz>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Function drm_sched_entity_do_release() has been renamed in
commit 180fc134d712 ("drm/scheduler: Rename cleanup functions v2.").
Refer to the correct function in the documentation.
Signed-off-by: Luc Ma <onion0709@gmail.com>
[phasta: commit message]
Signed-off-by: Philipp Stanner <phasta@kernel.org>
Link: https://lore.kernel.org/r/20250915132327.6293-1-onion0709@gmail.com
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Give TTM BOs a separate cleanup function.
No funktional change, but the next step in removing the TTM BO reference
counting and replacing it with the GEM object reference counting.
v2: move the code around a bit to make it clearer what's happening
v3: fix nouveau_bo_fini as well
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://lore.kernel.org/r/20250909144311.1927-1-christian.koenig@amd.com
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cleanup"
Kuen-Han Tsai <khtsai@google.com> says:
This patch series refactors the error-handling paths in the bind()
function for f_ncm, f_acm, f_ecm, and f_rndis drivers.
The current, unified goto logic in these drivers is vulnerable to a null
pointer dereference. This is caused by the cleanup logic incorrectly
handling the stale usb_request pointer after a bind/unbind cycle. This
series fixes this issue by converting the drivers to use the modern
__free() scope-based cleanup mechanism.
Patches 1-2 are preparatory, adding the endpoint pointer to struct
usb_request and defining helpers for the __free() cleanup. The remaining
four patches use this new plumbing to refactor each driver.
Future work
-----------
1. Refactor usb_ep_free_request(), usb_ep_queue(), and usb_ep_dequeue()
functions as the ep parameter becomes redudant.
2. Convert the remaining gadget function drivers to use the new __free()
cleanup mechanism.
Link: https://lore.kernel.org/r/20250916-ready-v1-0-4997bf277548@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Introduce the free_usb_request() function that frees both the request's
buffer and the request itself.
This function serves as the cleanup callback for DEFINE_FREE() to enable
automatic, scope-based cleanup for usb_request pointers.
Signed-off-by: Kuen-Han Tsai <khtsai@google.com>
Link: https://lore.kernel.org/r/20250916-ready-v1-2-4997bf277548@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250916-ready-v1-2-4997bf277548@google.com
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Gadget function drivers often have goto-based error handling in their
bind paths, which can be bug-prone. Refactoring these paths to use
__free() scope-based cleanup is desirable, but currently blocked.
The blocker is that usb_ep_free_request(ep, req) requires two
parameters, while the __free() mechanism can only pass a pointer to the
request itself.
Store an endpoint pointer in the struct usb_request. The pointer is
populated centrally in usb_ep_alloc_request() on every successful
allocation, making the request object self-contained.
Signed-off-by: Kuen-Han Tsai <khtsai@google.com>
Link: https://lore.kernel.org/r/20250916-ready-v1-1-4997bf277548@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250916-ready-v1-1-4997bf277548@google.com
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Ease driver development by adding stubs for the typec_switch APIs when
CONFIG_TYPEC=n. Copy the same method used for the typec_mux APIs to be
consistent.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20250916021620.1303995-1-xu.yang_2@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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AMD Seamless Firmware Servicing (SFS) is a secure method to allow
non-persistent updates to running firmware and settings without
requiring BIOS reflash and/or system reset.
SFS does not address anything that runs on the x86 processors and
it can be used to update ASP firmware, modules, register settings
and update firmware for other microprocessors like TMPM, etc.
SFS driver support adds ioctl support to communicate the SFS
commands to the ASP/PSP by using the TEE mailbox interface.
The Seamless Firmware Servicing (SFS) driver is added as a
PSP sub-device.
For detailed information, please look at the SFS specifications:
https://www.amd.com/content/dam/amd/en/documents/epyc-technical-docs/specifications/58604.pdf
Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Link: https://lore.kernel.org/cover.1758057691.git.ashish.kalra@amd.com
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name is never mutated by the core HID stack. Making name a const char*
simplifies passing the string from Rust to C. Otherwise, it becomes
difficult to pass a 'static lifetime CStr from Rust to a char*, rather than
a const char*, due to lack of guarantee that the underlying data of the
CStr will not be mutated by the C code.
Signed-off-by: Rahul Rameshbabu <sergeantsagara@protonmail.com>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
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The handling for variable-length ioctl commands in hidraw_ioctl() is
rather complex and the check for the data direction is incomplete.
Simplify this code by factoring out the various ioctls grouped by dir
and size, and using a switch() statement with the size masked out, to
ensure the rest of the command is correctly matched.
Fixes: 9188e79ec3fd ("HID: add phys and name ioctls to hidraw")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Tissoires <bentiss@kernel.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
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Commit ddeb66d2cb10 ("gpio: nomadik: don't print out global GPIO numbers
in debugfs callbacks") failed to also update the stub of the debugfs
helper for !CONFIG_DEBUG_FS. Fix the resulting build failure.
Fixes: ddeb66d2cb10 ("gpio: nomadik: don't print out global GPIO numbers in debugfs callbacks")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202509132232.12viPUPB-lkp@intel.com/
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20250915091007.28438-1-brgl@bgdev.pl
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
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Update the WQE metadata assignment to avoid overriding existing
metadata when setting the sysport timestamp ID. Since timestamp IDs are
limited to 256 values, they use only the lower 8 bits of the metadata
field.
To avoid conflicts, move IPsec and MACsec metadata ID to bits 8 and 9,
and shift the MACsec fs_id accordingly. This ensures safe coexistence
of timestamping and offload features that use the same metadata field.
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1757574619-604874-4-git-send-email-tariqt@nvidia.com
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Introduce MLX5_ETH_WQE_FT_META_SHIFT as a shared base offset for
features that use the lower 8 bits of the WQE flow_table_metadata
field, currently used for timestamping, IPsec, and MACsec.
Define MLX5_ETH_WQE_FT_META_MACSEC_FS_ID_MASK so that fs_id occupies
bits 2–5, making it clear that fs_id occupies bits in the metadata.
Set MLX5_ETH_WQE_FT_META_MACSEC_MASK as the OR of the MACsec flag and
MLX5_ETH_WQE_FT_META_MACSEC_FS_ID_MASK, corresponding to the original
0x3E mask.
Update the fs_id macro to right-shift the MACsec flag by
MLX5_ETH_WQE_FT_META_SHIFT and update the RoCE modify-header action to
use it.
Introduce the helper macro MLX5_MACSEC_TX_METADATA(fs_id) to compose
the full shifted MACsec metadata value.
These changes make it explicit exactly which metadata bits carry MACsec
information, simplifying future feature exclusions when multiple
features share the WQE flowtable metadata.
In addition, drop the incorrect “RX flow steering” comment, since this
applies to TX flow steering.
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Reviewed-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1757574619-604874-3-git-send-email-tariqt@nvidia.com
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Now that the driver no longer uses VLAN TX insertion via the WQE
Ethernet segment, the related fields and flags can be removed.
Signed-off-by: Carolina Jubran <cjubran@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1757574619-604874-2-git-send-email-tariqt@nvidia.com
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Common TIF bits do not have to be defined by every architecture. They can
be defined in a generic header.
That allows adding generic TIF bits without chasing a gazillion of
architecture headers, which is again a unjustified burden on anyone who
works on generic infrastructure as it always needs a boat load of work to
keep existing architecture code working when adding new stuff.
While it is not as horrible as the ignorance of the generic entry
infrastructure, it is a welcome mechanism to make architecture people
rethink their approach of just leaching generic improvements into
architecture code and thereby making it accumulatingly harder to maintain
and improve generic code. It's about time that this changes.
Provide the infrastructure and split the TIF space in half, 16 generic and
16 architecture specific bits.
This could probably be extended by TIF_SINGLESTEP and BLOCKSTEP, but those
are only used in architecture specific code. So leave them alone for now.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
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Make Thunderbolt header file compliant with current kernel-doc
standards. No functional changes.
Signed-off-by: Alan Borzeszkowski <alan.borzeszkowski@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
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Some Kioxia UFS 4 devices do not support the qTimestamp attribute. Set
the UFS_DEVICE_QUIRK_NO_TIMESTAMP_SUPPORT for these devices such that no
error messages appear in the kernel log about failures to set the
qTimestamp attribute.
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Avri Altman <avri.altman@sandisk.com>
Tested-by: Nitin Rawat <quic_nitirawa@quicinc.com> # on SM8650-QRD
Reviewed-by: Nitin Rawat <quic_nitirawa@quicinc.com>
Reviewed-by: Peter Wang <peter.wang@mediatek.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Message-ID: <20250909190614.3531435-1-bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The function mlx5_uplink_netdev_get() gets the uplink netdevice
pointer from mdev->mlx5e_res.uplink_netdev. However, the netdevice can
be removed and its pointer cleared when unbound from the mlx5_core.eth
driver. This results in a NULL pointer, causing a kernel panic.
BUG: unable to handle page fault for address: 0000000000001300
at RIP: 0010:mlx5e_vport_rep_load+0x22a/0x270 [mlx5_core]
Call Trace:
<TASK>
mlx5_esw_offloads_rep_load+0x68/0xe0 [mlx5_core]
esw_offloads_enable+0x593/0x910 [mlx5_core]
mlx5_eswitch_enable_locked+0x341/0x420 [mlx5_core]
mlx5_devlink_eswitch_mode_set+0x17e/0x3a0 [mlx5_core]
devlink_nl_eswitch_set_doit+0x60/0xd0
genl_family_rcv_msg_doit+0xe0/0x130
genl_rcv_msg+0x183/0x290
netlink_rcv_skb+0x4b/0xf0
genl_rcv+0x24/0x40
netlink_unicast+0x255/0x380
netlink_sendmsg+0x1f3/0x420
__sock_sendmsg+0x38/0x60
__sys_sendto+0x119/0x180
do_syscall_64+0x53/0x1d0
entry_SYSCALL_64_after_hwframe+0x4b/0x53
Ensure the pointer is valid before use by checking it for NULL. If it
is valid, immediately call netdev_hold() to take a reference, and
preventing the netdevice from being freed while it is in use.
Fixes: 7a9fb35e8c3a ("net/mlx5e: Do not reload ethernet ports when changing eswitch mode")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Cosmin Ratiu <cratiu@nvidia.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Dragos Tatulea <dtatulea@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1757939074-617281-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge series from Richard Fitzgerald <rf@opensource.cirrus.com>:
This series adds handling for vendor-specific UEFI variables from Lenovo
and HP. These vendors will switch to using their UEFI variables instead
of the normal Cirrus Logic-defined mechanisms.
The model of speaker fitted (Speaker ID) is normally signaled by a GPIO,
and the driver is given access to this GPIO. Lenovo and HP will both stop
giving the driver access to the GPIO and instead the BIOS will create a
UEFI variable giving the value of the GPIO.
HP will also start using their own UEFI variable to store amp calibration
data. The content of the variable is the same as the Cirrus Logic variable,
only the UEFI name and GUID are changed.
Change in v2:
Removed unused target_uid variable and code that set it in patch 6.
Richard Fitzgerald (6):
ASoC: cs-amp-lib: Rename defines for Cirrus Logic EFI
ASoC: cs-amp-lib: Add handling for Lenovo and HP UEFI speaker ID
ASoC: cs35l56: Check for vendor-specific speaker ID value
ASoC: cs-amp-lib-test: Add tests for cs_amp_get_vendor_spkid()
ASoC: cs-amp-lib: Add HP-specific EFI variable for calibration data
ASoC: cs-amp-lib-test: Add test for getting cal data from HP EFI
include/sound/cs-amp-lib.h | 1 +
sound/soc/codecs/cs-amp-lib-test.c | 252 ++++++++++++++++++++++++++++-
sound/soc/codecs/cs-amp-lib.c | 139 +++++++++++++++-
sound/soc/codecs/cs35l56-shared.c | 12 +-
4 files changed, 395 insertions(+), 9 deletions(-)
--
2.39.5
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Merge series from Alexey Klimov <alexey.klimov@linaro.org>:
PMICs like PM4125 have in-built audio codec IC. The series here
adds support for this codec driver: DT bindings and codec driver
itself that consists mainly of two parts: soundwire devices and
codec part itself.
This audio codec can be found on platforms like QCM2290 and
on Qualcomm QRB2210 RB1 board.
We are working on this together with Srini
(srinivas.kandagatla@oss.qualcomm.com or srini@kernel.org).
This driver also has a bit limited support for concurrent playback,
since line out path is connected to left input channel.
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Merge series from Stefan Kerkmann <s.kerkmann@pengutronix.de>:
Add a CODEC driver for the TI PCM1754.
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Currently if a user enqueue a work item using schedule_delayed_work() the
used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use
WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to
schedule_work() that is using system_wq and queue_work(), that makes use
again of WORK_CPU_UNBOUND.
This lack of consistentcy cannot be addressed without refactoring the API.
alloc_workqueue() treats all queues as per-CPU by default, while unbound
workqueues must opt-in via WQ_UNBOUND.
This default is suboptimal: most workloads benefit from unbound queues,
allowing the scheduler to place worker threads where they’re needed and
reducing noise when CPUs are isolated.
This patch adds a new WQ_PERCPU flag to explicitly request the use of
the per-CPU behavior. Both flags coexist for one release cycle to allow
callers to transition their calls.
Once migration is complete, WQ_UNBOUND can be removed and unbound will
become the implicit default.
With the introduction of the WQ_PERCPU flag (equivalent to !WQ_UNBOUND),
any alloc_workqueue() caller that doesn’t explicitly specify WQ_UNBOUND
must now use WQ_PERCPU.
All existing users have been updated accordingly.
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Marco Crivellari <marco.crivellari@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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Empty stubs are defined in processor.h for some functions provided by
the ACPI processor idle driver, but those functions are only used in
the main ACPI processor driver which requires the ACPI processor idle
driver to be present (selecting CONFIG_ACPI_PROCESSOR causes
CONFIG_ACPI_PROCESSOR_IDLE to be selected too automatically).
This means that the empty stubs in question are not really necessary and
if both CONFIG_ACPI_PROCESSOR and CONFIG_ACPI_PROCESSOR_IDLE are unset,
the compiler complains that they are defined, but not used. Drop them
to get rid of the compiler warning.
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Link: https://patch.msgid.link/20250911112408.1668431-2-lihuisong@huawei.com
[ rjw: Subject and changelog rewrite ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Returning buffers via a ring is performant and convenient, but it
becomes a problem when/if the user misconfigured the ring size and it
becomes full. Add a synchronous way to return buffers back to the page
pool via a new register opcode. It's supposed to be a reliable slow
path for refilling.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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pci_bus_distribute_available_resources() and
pci_bridge_distribute_available_resources() retain bridge window resources
and related data needed for distributing the available window in
independent variables for io, memory, and prefetchable memory windows. The
code is essentially the same for all of them and therefore repeated three
times with different variable names.
Refactor pci_bus_distribute_available_resources() to take an array. This
is complicated slightly by the function taking advantage of passing the
struct as value, which cannot be done for arrays in C. Therefore, copy the
data into a local array in the stack in the first loop.
Variable names are (hopefully) improved slightly as well.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20250829131113.36754-21-ilpo.jarvinen@linux.intel.com
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A few places in setup-bus.c call release_resource() directly and end up
duplicating functionality from pci_release_resource() such as parent check,
logging, and clearing the resource. Worse yet, the way the resource is
cleared is inconsistent between different sites.
Convert release_resource() calls into pci_release_resource() to remove code
duplication. This will also make the resource start, end, and flags
behavior consistent, i.e., start address is cleared, and only
IORESOURCE_UNSET is asserted for the resource.
While at it, eliminate the unnecessary initialization of idx variable in
pci_bridge_release_resources().
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20250829131113.36754-9-ilpo.jarvinen@linux.intel.com
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Some I3C controllers such as MIPI I3C HCI may pad the last DWORD (32-bit)
with stale data from the RX FIFO in DMA transfers if the receive length
is not DWORD aligned and when the device DMA is IOMMU mapped.
In such a case, a properly sized bounce buffer is required in order to
avoid possible data corruption. In a review discussion, proposal was to
have a common helpers in I3C core for DMA mapping and bounce buffer
handling.
Drivers may use the helper i3c_master_dma_map_single() to map a buffer
for a DMA transfer. It internally allocates a bounce buffer if buffer is
not DMA'able or when the driver requires it for a transfer.
Helper i3c_master_dma_unmap_single() does the needed cleanups and
data copying from the bounce buffer.
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20250822105630.2820009-2-jarkko.nikula@linux.intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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Remove 2.5V regulator since enabling and disabling this regulator is no
longer supported.
Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Link: https://lore.kernel.org/r/a6785a40648b315a07152bca261a42bbf0f356af.1757519351.git.Ryan.Wanner@microchip.com
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
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Allows to populate the gpio_regmap_config structure with
init_valid_mask() callback to set on the final gpio_chip structure.
Reviewed-by: Michael Walle <mwalle@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-6-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
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GPIO controller often have support for IRQ: allow to easily allocate
both gpio-regmap and regmap-irq in one operation.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-5-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
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Add core driver to support MAX7360 i2c chip, multi function device
with keypad, GPIO, PWM, GPO and rotary encoder submodules.
Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
Co-developed-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20250824-mdb-max7360-support-v14-2-435cfda2b1ea@bootlin.com
Signed-off-by: Lee Jones <lee@kernel.org>
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The Nuvoton NCT6694 provides an USB interface to the host to
access its features.
Sub-devices can use the USB functions nct6694_read_msg() and
nct6694_write_msg() to issue a command. They can also request
interrupt that will be called when the USB device receives its
interrupt pipe.
Signed-off-by: Ming Yu <a0282524688@gmail.com>
Link: https://lore.kernel.org/r/20250912091952.1169369-2-a0282524688@gmail.com
Signed-off-by: Lee Jones <lee@kernel.org>
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drm_bridge_get_next_bridge() returns a bridge pointer that the
caller could hold for a long time. Increment the refcount of the returned
bridge and document it must be put by the caller.
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250801-drm-bridge-alloc-getput-drm_bridge_get_next_bridge-v2-7-888912b0be13@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
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Add variant of drm_for_each_bridge_in_chain_scoped() that iterates on the
encoder bridge from a given bridge until the end of the chain.
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-8-edb6ee81edf1@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
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All users have been replaced by drm_for_each_bridge_in_chain_scoped().
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-7-edb6ee81edf1@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
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drm_for_each_bridge_in_chain() iterates ofer the bridges in an encoder
chain without protecting the lifetime of the bridges using
drm_bridge_get/put(). This creates a risk window where the bridge could be
freed while iterating on it. Users of drm_for_each_bridge_in_chain() cannot
solve this reliably.
Add variant of drm_for_each_bridge_in_chain() that gets/puts the bridge
reference at the beginning/end of each iteration, and puts it if breaking
ot of the loop.
Note that this requires adding a new drm_bridge_get_next_bridge_and_put()
function because, unlike similar functions as __of_get_next_child(),
drm_bridge_get_next_bridge() gets the "next" pointer but does not put the
"prev" pointer. Unfortunately drm_bridge_get_next_bridge() cannot be
modified to put the "prev" pointer because some of its users rely on
this, such as drm_atomic_bridge_propagate_bus_flags().
Also deprecate drm_for_each_bridge_in_chain(), in preparation for removing
it after converting all users to the scoped version.
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250808-drm-bridge-alloc-getput-for_each_bridge-v2-3-edb6ee81edf1@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
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Merge series from Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>:
This patchset adds support for the max77838 PMIC. It's used on the Galaxy
S7 lineup of phones, and provides regulators for the display.
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Merge series from Mohammad Rafi Shaik <mohammad.rafi.shaik@oss.qualcomm.com>:
Fix the lpaif_type configuration for the I2S interface.
The proper lpaif interface type required to allow DSP to vote
appropriate clock setting for I2S interface and also Add support
for configuring the DAI format on MI2S interfaces to allow setting
the appropriate bit clock and frame clock polarity, ensuring correct
audio data transmissionover MI2S.
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Before updating the display from the console's shadow buffer, the dirty
worker now waits for a vblank. This allows several screen updates to pile
up and acts as a rate limiter. If a DRM master is present, it could
interfere with the vblank. Don't wait in this case.
v4:
* share code with WAITFORVSYNC ioctl (Emil)
* use lock guard
v3:
* add back helper->lock
* acquire DRM master status while waiting for vblank
v2:
* don't hold helper->lock while waiting for vblank
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://lore.kernel.org/r/20250829091447.46719-1-tzimmermann@suse.de
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