Enable support for Tenstorrent SoCs in the default configuration.
Reviewed-by: Joel Stanley <jms@oss.tenstorrent.com>
Signed-off-by: Drew Fustini <dfustini@oss.tenstorrent.com>
Add Kconfig option ARCH_TENSTORRENT to enable support for SoCs like the
Blackhole.
Reviewed-by: Joel Stanley <jms@oss.tenstorrent.com>
Signed-off-by: Drew Fustini <dfustini@oss.tenstorrent.com>
Add device tree source describing the Tenstorrent Blackhole SoC and the
Blackhole P100 and P150 PCIe cards. There are no differences between
the P100 and P150 cards from the perspective of an OS kernel like Linux
running on the X280 cores.
There is a virtual UART implemented in OpenSBI firmware that allows a
console program on the PCIe host to communicate through shared memory
with Linux running on the Blackhole card. CONFIG_HVC_RISCV_SBI needs to
be enabled. The boot script on the host adds 'console=hvc0' so that the
full boot output appears in the console program on the host.
Link: https://github.com/tenstorrent/opensbi/
Link: https://github.com/tenstorrent/tt-bh-linux
Reviewed-by: Joel Stanley <jms@oss.tenstorrent.com>
Signed-off-by: Drew Fustini <dfustini@oss.tenstorrent.com>
Document compatible for the PLIC in the Tenstorrent Blackhole SoC.
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Joel Stanley <jms@oss.tenstorrent.com>
Signed-off-by: Drew Fustini <dfustini@oss.tenstorrent.com>
Document clint compatible for the Tenstorrent Blackhole SoC.
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Joel Stanley <jms@oss.tenstorrent.com>
Signed-off-by: Drew Fustini <dfustini@oss.tenstorrent.com>
Document compatible for the SiFive X280 RISC-V core.
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Joel Stanley <jms@oss.tenstorrent.com>
Signed-off-by: Drew Fustini <dfustini@oss.tenstorrent.com>
Add compatibles for the Tenstorrent Blackhole SoC PCIe card.
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Joel Stanley <jms@oss.tenstorrent.com>
Signed-off-by: Drew Fustini <dfustini@oss.tenstorrent.com>
Document vendor prefix for Tenstorrent in DT bindings.
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: Joel Stanley <jms@oss.tenstorrent.com>
Signed-off-by: Drew Fustini <dfustini@oss.tenstorrent.com>
Bugfixes:
* Fix for FlexFiles mirror->dss allocation
* Apply delay_retrans to async operations
* Check if suid/sgid is cleared after a write when needed
* Fix setting the state renewal timer for early mounts after a reboot
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Merge tag 'nfs-for-6.18-2' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
- Fix for FlexFiles mirror->dss allocation
- Apply delay_retrans to async operations
- Check if suid/sgid is cleared after a write when needed
- Fix setting the state renewal timer for early mounts after a reboot
* tag 'nfs-for-6.18-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFS4: Fix state renewals missing after boot
NFS: check if suid/sgid was cleared after a write as needed
NFS4: Apply delay_retrans to async operations
NFSv4/flexfiles: fix to allocate mirror->dss before use
Accessing non-existent PMU registers causes an SError, halting the
system.
Implement read and write access tables for the gs101-PMU to specify
which registers are read- and/or writable to avoid that SError.
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20251009-gs101-pmu-regmap-tables-v2-3-2d64f5261952@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To avoid cluttering common code, move most of the gs101 code into a new
file, gs101-pmu.c
More code is going to be added for gs101 - having it all in one file
helps keeping the common code (file) more readable. While at it, rename
variables 'ctx' to 'context' for consistency.
No functional change.
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20251009-gs101-pmu-regmap-tables-v2-2-2d64f5261952@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Accessing non-existent PMU registers causes an SError, halting the
system.
regmap can help us with that by allowing to pass the list of valid
registers as part of the config during creation. When this driver
creates a new regmap itself rather than relying on
syscon_node_to_regmap(), it's therefore easily possible to hook in
custom access tables for valid read and write registers.
Specifying access tables avoids SErrors for invalid registers and
instead the regmap core can just return an error. Outside drivers, this
is also helpful when using debugfs to access the regmap.
Make it possible for drivers to specify read and write tables to be
used on creation of the secure regmap by adding respective fields to
struct exynos_pmu_data. Also add kerneldoc to same struct while
updating it.
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20251009-gs101-pmu-regmap-tables-v2-1-2d64f5261952@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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Merge tag '6.18-rc1-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull smb client fixes from Steve French:
"smb client fixes, security and smbdirect improvements, and some minor cleanup:
- Important OOB DFS fix
- Fix various potential tcon refcount leaks
- smbdirect (RDMA) fixes (following up from test event a few weeks
ago):
- Fixes to improve and simplify handling of memory lifetime of
smbdirect_mr_io structures, when a connection gets disconnected
- Make sure we really wait to reach SMBDIRECT_SOCKET_DISCONNECTED
before destroying resources
- Make sure the send/recv submission/completion queues are large
enough to avoid ib_post_send() from failing under pressure
- convert cifs.ko to use the recommended crypto libraries (instead of
crypto_shash), this also can improve performance
- Three small cleanup patches"
* tag '6.18-rc1-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: (24 commits)
smb: client: Consolidate cmac(aes) shash allocation
smb: client: Remove obsolete crypto_shash allocations
smb: client: Use HMAC-MD5 library for NTLMv2
smb: client: Use MD5 library for SMB1 signature calculation
smb: client: Use MD5 library for M-F symlink hashing
smb: client: Use HMAC-SHA256 library for SMB2 signature calculation
smb: client: Use HMAC-SHA256 library for key generation
smb: client: Use SHA-512 library for SMB3.1.1 preauth hash
cifs: parse_dfs_referrals: prevent oob on malformed input
smb: client: Fix refcount leak for cifs_sb_tlink
smb: client: let smbd_destroy() wait for SMBDIRECT_SOCKET_DISCONNECTED
smb: move some duplicate definitions to common/cifsglob.h
smb: client: let destroy_mr_list() keep smbdirect_mr_io memory if registered
smb: client: let destroy_mr_list() call ib_dereg_mr() before ib_dma_unmap_sg()
smb: client: call ib_dma_unmap_sg if mr->sgt.nents is not 0
smb: client: improve logic in smbd_deregister_mr()
smb: client: improve logic in smbd_register_mr()
smb: client: improve logic in allocate_mr_list()
smb: client: let destroy_mr_list() remove locked from the list
smb: client: let destroy_mr_list() call list_del(&mr->list)
...
- Fix the handling of ZCR_EL2 in NV VMs
- Pick the correct translation regime when doing a PTW on
the back of a SEA
- Prevent userspace from injecting an event into a vcpu that isn't
initialised yet
- Move timer save/restore to the sysreg handling code, fixing EL2 timer
access in the process
- Add FGT-based trapping of MDSCR_EL1 to reduce the overhead of debug
- Fix trapping configuration when the host isn't GICv3
- Improve the detection of HCR_EL2.E2H being RES1
- Drop a spurious 'break' statement in the S1 PTW
- Don't try to access SPE when owned by EL3
Documentation updates:
- Document the failure modes of event injection
- Document that a GICv3 guest can be created on a GICv5 host
with FEAT_GCIE_LEGACY
Selftest improvements:
- Add a selftest for the effective value of HCR_EL2.AMO
- Address build warning in the timer selftest when building with clang
- Teach irqfd selftests about non-x86 architectures
- Add missing sysregs to the set_id_regs selftest
- Fix vcpu allocation in the vgic_lpi_stress selftest
- Correctly enable interrupts in the vgic_lpi_stress selftest
x86:
- Expand the KVM_PRE_FAULT_MEMORY selftest to add a regression test for the
bug fixed by commit 3ccbf6f470 ("KVM: x86/mmu: Return -EAGAIN if userspace
deletes/moves memslot during prefault")
- Don't try to get PMU capabilities from perf when running a CPU with hybrid
CPUs/PMUs, as perf will rightly WARN.
guest_memfd:
- Rework KVM_CAP_GUEST_MEMFD_MMAP (newly introduced in 6.18) into a more
generic KVM_CAP_GUEST_MEMFD_FLAGS
- Add a guest_memfd INIT_SHARED flag and require userspace to explicitly set
said flag to initialize memory as SHARED, irrespective of MMAP. The
behavior merged in 6.18 is that enabling mmap() implicitly initializes
memory as SHARED, which would result in an ABI collision for x86 CoCo VMs
as their memory is currently always initialized PRIVATE.
- Allow mmap() on guest_memfd for x86 CoCo VMs, i.e. on VMs with private
memory, to enable testing such setups, i.e. to hopefully flush out any
other lurking ABI issues before 6.18 is officially released.
- Add testcases to the guest_memfd selftest to cover guest_memfd without MMAP,
and host userspace accesses to mmap()'d private memory.
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- Fix the handling of ZCR_EL2 in NV VMs
- Pick the correct translation regime when doing a PTW on the back of
a SEA
- Prevent userspace from injecting an event into a vcpu that isn't
initialised yet
- Move timer save/restore to the sysreg handling code, fixing EL2
timer access in the process
- Add FGT-based trapping of MDSCR_EL1 to reduce the overhead of debug
- Fix trapping configuration when the host isn't GICv3
- Improve the detection of HCR_EL2.E2H being RES1
- Drop a spurious 'break' statement in the S1 PTW
- Don't try to access SPE when owned by EL3
Documentation updates:
- Document the failure modes of event injection
- Document that a GICv3 guest can be created on a GICv5 host with
FEAT_GCIE_LEGACY
Selftest improvements:
- Add a selftest for the effective value of HCR_EL2.AMO
- Address build warning in the timer selftest when building with
clang
- Teach irqfd selftests about non-x86 architectures
- Add missing sysregs to the set_id_regs selftest
- Fix vcpu allocation in the vgic_lpi_stress selftest
- Correctly enable interrupts in the vgic_lpi_stress selftest
x86:
- Expand the KVM_PRE_FAULT_MEMORY selftest to add a regression test
for the bug fixed by commit 3ccbf6f470 ("KVM: x86/mmu: Return
-EAGAIN if userspace deletes/moves memslot during prefault")
- Don't try to get PMU capabilities from perf when running a CPU with
hybrid CPUs/PMUs, as perf will rightly WARN.
guest_memfd:
- Rework KVM_CAP_GUEST_MEMFD_MMAP (newly introduced in 6.18) into a
more generic KVM_CAP_GUEST_MEMFD_FLAGS
- Add a guest_memfd INIT_SHARED flag and require userspace to
explicitly set said flag to initialize memory as SHARED,
irrespective of MMAP.
The behavior merged in 6.18 is that enabling mmap() implicitly
initializes memory as SHARED, which would result in an ABI
collision for x86 CoCo VMs as their memory is currently always
initialized PRIVATE.
- Allow mmap() on guest_memfd for x86 CoCo VMs, i.e. on VMs with
private memory, to enable testing such setups, i.e. to hopefully
flush out any other lurking ABI issues before 6.18 is officially
released.
- Add testcases to the guest_memfd selftest to cover guest_memfd
without MMAP, and host userspace accesses to mmap()'d private
memory"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (46 commits)
arm64: Revamp HCR_EL2.E2H RES1 detection
KVM: arm64: nv: Use FGT write trap of MDSCR_EL1 when available
KVM: arm64: Compute per-vCPU FGTs at vcpu_load()
KVM: arm64: selftests: Fix misleading comment about virtual timer encoding
KVM: arm64: selftests: Add an E2H=0-specific configuration to get_reg_list
KVM: arm64: selftests: Make dependencies on VHE-specific registers explicit
KVM: arm64: Kill leftovers of ad-hoc timer userspace access
KVM: arm64: Fix WFxT handling of nested virt
KVM: arm64: Move CNT*CT_EL0 userspace accessors to generic infrastructure
KVM: arm64: Move CNT*_CVAL_EL0 userspace accessors to generic infrastructure
KVM: arm64: Move CNT*_CTL_EL0 userspace accessors to generic infrastructure
KVM: arm64: Add timer UAPI workaround to sysreg infrastructure
KVM: arm64: Make timer_set_offset() generally accessible
KVM: arm64: Replace timer context vcpu pointer with timer_id
KVM: arm64: Introduce timer_context_to_vcpu() helper
KVM: arm64: Hide CNTHV_*_EL2 from userspace for nVHE guests
Documentation: KVM: Update GICv3 docs for GICv5 hosts
KVM: arm64: gic-v3: Only set ICH_HCR traps for v2-on-v3 or v3 guests
KVM: arm64: selftests: Actually enable IRQs in vgic_lpi_stress
KVM: arm64: selftests: Allocate vcpus with correct size
...
- Fix to handle NULL pointer dereference at irq domain teardown
- Fix for handling extraction of struct xive_irq_data
- Fix to skip parameter area allocation when fadump disabled
Thanks to: Ganesh Goudar, Hari Bathini, Nam Cao, Ritesh Harjani (IBM) Sourabh Jain, Venkat Rao Bagalkote,
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Merge tag 'powerpc-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Madhavan Srinivasan:
- Fix to handle NULL pointer dereference at irq domain teardown
- Fix for handling extraction of struct xive_irq_data
- Fix to skip parameter area allocation when fadump disabled
Thanks to Ganesh Goudar, Hari Bathini, Nam Cao, Ritesh Harjani (IBM),
Sourabh Jain, and Venkat Rao Bagalkote,
* tag 'powerpc-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/fadump: skip parameter area allocation when fadump is disabled
powerpc, ocxl: Fix extraction of struct xive_irq_data
powerpc/pseries/msi: Fix NULL pointer dereference at irq domain teardown
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Merge tag 'slab-for-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fixes from Vlastimil Babka:
- Fixes for two bugs that can be triggered when debugging options are
enabled (Hao Ge, Vlastimil Babka)
* tag 'slab-for-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
slab: reset slab->obj_ext when freeing and it is OBJEXTS_ALLOC_FAIL
slab: fix clearing freelist in free_deferred_objects()
Add sysreg compatible strings for the Exynos7870 SoC. Two sysregs are
added, used for the SoC MIPI PHY's CSIS and DSIM blocks.
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
TEAC Corporation launched IF-FW/DM MkII as an add-in card for TASCAM
DM-3200 and DM-4800. This card uses TC Applied Technologies DICE II
ASIC.
This commit supports the add-in card. The configuration ROM content
includes some quirks:
- The category value stored in chip_ID_hi field of bus information block
is zero.
- The value of model in unit directory (0x00022e) is different from the
one in root directory (0x000006).
The hardware allows users to select the total number of audio data channels
available for system from 16 and 32 channels for both input and output
direction. In 16-channel mode, all audio data are transferred in a
single isochronous packet stream, while in 32-channel mode, they are
transferred across two streams. After the user changes the channel
configuration on the hardware panel, the device temporarily disappears
from the bus and reappears with the new stream formats. During device
probing the ALSA dice driver checks the number of available isochronous
packet streams to determine the active mode of the hardware.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://patch.msgid.link/20251017111145.263295-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This laptop requires the same quirk as Lenovo Yoga9 14IAP7 for
fixing the bass speaker problems.
Use HDA_CODEC_QUIRK to match on the codec SSID to avoid conflict with
the Lenovo Legion Slim 7 16IRH8, which has the same PCI SSID.
Signed-off-by: J-Donald Tournier <jdtournier@gmail.com>
Link: https://patch.msgid.link/20251018145322.39119-1-jdournier@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Add exynos8890 information to soc_ids tables. This SoC product id
is "0xE8890000".
Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Document the samsung,exynos8890-chipid compatible. The registers are
entirely compatible with "samsung,exynos4210-chipid".
Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Add exynos8890-pmu compatible to the bindings documentation. Since
Samsung, as usual, reuses devices from older designs, use the
samsung,exynos7-pmu compatible.
Signed-off-by: Ivaylo Ivanov <ivo.ivanov.ivanov1@gmail.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
readl_relaxed_poll_timeout_atomic() has been updated in 2023 in
commit 7349a69cf3 ("iopoll: Do not use timekeeping in
read_poll_timeout_atomic()") to avoid usage of timekeeping APIs. It
also never used udelay() when no delay was given.
With the implementation avoiding timekeeping APIs, and with a caller
not passing a delay, the timeout argument simply becomes a loop
counter.
Therefore the code here can be simplified to unconditionally use
readl_relaxed_poll_timeout_atomic(). The difference being the last
argument, the timeout (loop counter). Simply adjust it to pass the
more generous counter in all cases.
This change also allows us to drop all code around the
pll_early_timeout variable as it is unused now.
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://patch.msgid.link/20251013-samsung-clk-pll-simplification-v2-1-b9aab610878c@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Aside from the main CMA region, it can be useful to allow userspace to
allocate from the other CMA reserved regions.
Indeed, those regions can have specific properties that can be useful to
a specific us-case.
For example, one of them platform I've been with has ECC enabled on the
entire memory but for a specific region. Using that region to allocate
framebuffers can be particular beneficial because enabling the ECC has a
performance and memory footprint cost.
Thus, exposing these regions as heaps user-space can allocate from and
import wherever needed allows to cover that use-case.
For now, only shared-dma-pools regions with the reusable property (ie,
backed by CMA) are supported, but eventually we'll want to support other
DMA pools types.
Since we collected all the CMA regions created during boot, we can
simply iterate over all of them to create the heaps.
This has a weird interaction with the recent work on the CMA name, in
particular the backward compatibility code created by commit
854acbe75f ("dma-buf: heaps: Give default CMA heap a fixed name").
Indeed, the old name was either 'reserved', or the name of the
reserved-memory region device tree node if the linux,cma-default
property was set.
In both these cases, we have now collected this region during boot, and
we're using the same name. So we're now largely redundant with the
code to handle backward compatibility code, and we can thus remove it
and the associated Kconfig option.
Reviewed-by: T.J. Mercier <tjmercier@google.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
[sumits: rebased the doc to latest]
Link: https://lore.kernel.org/r/20251013-dma-buf-ecc-heap-v8-5-04ce150ea3d9@kernel.org
The CMA code, in addition to the reserved-memory regions in the device
tree, will also register a default CMA region if the device tree doesn't
provide any, with its size and position coming from either the kernel
command-line or configuration.
Let's register that one for use to create a heap for it.
Reviewed-by: T.J. Mercier <tjmercier@google.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://lore.kernel.org/r/20251013-dma-buf-ecc-heap-v8-4-04ce150ea3d9@kernel.org
In order to create a CMA dma-buf heap instance for each CMA heap region
in the system, we need to collect all of them during boot.
They are created from two main sources: the reserved-memory regions in
the device tree, and the default CMA region created from the
configuration or command line parameters, if no default region is
provided in the device tree.
Let's collect all the device-tree defined CMA regions flagged as
reusable.
Reviewed-by: T.J. Mercier <tjmercier@google.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://lore.kernel.org/r/20251013-dma-buf-ecc-heap-v8-3-04ce150ea3d9@kernel.org
In order to create a CMA heap instance for each CMA region found in the
system, we need to register each of these instances.
While it would appear trivial, the CMA regions are created super early
in the kernel boot process, before most of the subsystems are
initialized. Thus, we can't just create an exported function to create a
heap from the CMA region being initialized.
What we can do however is create a two-step process, where we collect
all the CMA regions into an array early on, and then when we initialize
the heaps we iterate over that array and create the heaps from the CMA
regions we collected.
Reviewed-by: T.J. Mercier <tjmercier@google.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://lore.kernel.org/r/20251013-dma-buf-ecc-heap-v8-2-04ce150ea3d9@kernel.org
Since we're going to introduce multiple instances of the CMA heap
driver, there's no single CMA heap anymore.
Let's use the heap name instead to differentiate between all the heaps
available in the system.
While we're at it, let's also rework the backward compatibility part to
make it easier to amend later on.
Reviewed-by: T.J. Mercier <tjmercier@google.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
[sumits: rebased to latest Doc]
Link: https://lore.kernel.org/r/20251013-dma-buf-ecc-heap-v8-1-04ce150ea3d9@kernel.org
Resolve this smatch warning:
arch/riscv/kernel/sys_hwprobe.c:50 hwprobe_arch_id() error: uninitialized symbol 'cpu_id'.
This could happen if hwprobe_arch_id() was called with a key ID of
something other than MVENDORID, MIMPID, and MARCHID. This does not
happen in the current codebase. The only caller of hwprobe_arch_id()
is a function that only passes one of those three key IDs.
For the sake of reducing static analyzer warning noise, and in the
unlikely event that hwprobe_arch_id() is someday called with some
other key ID, validate hwprobe_arch_id()'s input to ensure that
'cpu_id' is always initialized before use.
Fixes: ea3de9ce8a ("RISC-V: Add a syscall for HW probing")
Cc: Evan Green <evan@rivosinc.com>
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Link: https://lore.kernel.org/r/cf5a13ec-19d0-9862-059b-943f36107bf3@kernel.org
Some systems such as live-image or installer require the firmware
information for each module declared by MODULE_FIRMWARE(), which is
currently missing in ath12k driver.
For addressing it, this patch adds the MODULE_FIRMWARE() entries.
Like ath11k driver, we can just put the currently used firmware
entries for QCN9274 and WCN7850 with wildcards.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Baochen Qiang <baochen.qiang@oss.qualcomm.com>
Reviewed-by: Vasanthakumar Thiagarajan <vasanthakumar.thiagarajan@oss.qualcomm.com>
Link: https://patch.msgid.link/20251003082955.11436-1-tiwai@suse.de
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
In has_thead_homogeneous_vlenb(), smatch detected that the vlenb variable
could be used while uninitialized. It appears that this could happen if
no CPUs described in DT have the "thead,vlenb" property.
Fix by initializing vlenb to 0, which will keep thead_vlenb_of set to 0
(as it was statically initialized). This in turn will cause
riscv_v_setup_vsize() to fall back to CSR probing - the desired result if
thead,vlenb isn't provided in the DT data.
While here, fix a nearby comment typo.
Cc: stable@vger.kernel.org
Cc: Charlie Jenkins <charlie@rivosinc.com>
Fixes: 377be47f90 ("riscv: vector: Use vlenb from DT for thead")
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Link: https://lore.kernel.org/r/22674afb-2fe8-2a83-1818-4c37bd554579@kernel.org
No caller of the client resume/suspend helpers holds the console
lock. The last such cases were removed from radeon in the patch
series at [1]. Now remove the related parameter and the TODO items.
v2:
- update placeholders for CONFIG_DRM_CLIENT=n
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/series/151624/ # [1]
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Petr Vorel <pvorel@suse.cz>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Acked-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://lore.kernel.org/r/20251001143709.419736-1-tzimmermann@suse.de
There is an race-condition where device is not full working after SW reset.
Therefore it's necessary to wait some time after reset and verify shadow
registers values by reading and comparing the values before/after reset.
This mechanism is described in datasheet at least from revision D.
Fixes: 12ed27863e ("iio: accel: Add driver support for ADXL355")
Signed-off-by: Valek Andrej <andrej.v@skyrain.eu>
Signed-off-by: Kessler Markus <markus.kessler@hilti.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Fix for EPP value in wrong state after S4
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Merge tag 'amd-pstate-v6.18-2025-10-15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux
Pull amd-pstate 6.18 content (10/15/25) from Mario Limonciello:
"Fix for EPP value in wrong state after S4"
* tag 'amd-pstate-v6.18-2025-10-15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux:
cpufreq/amd-pstate: Fix a regression leading to EPP 0 after hibernate
The pm_vt_switch_required() function fails silently when memory
allocation fails, offering no indication to callers that the operation
was unsuccessful. This behavior prevents drivers from handling allocation
errors correctly or implementing retry mechanisms. By ensuring that
failures are reported back to the caller, drivers can make informed
decisions, improve robustness, and avoid unexpected behavior during
critical power management operations.
Change the function signature to return an integer error code and modify
the implementation to return -ENOMEM when kmalloc() fails. Update both
the function declaration and the inline stub in include/linux/pm.h to
maintain consistency across CONFIG_VT_CONSOLE_SLEEP configurations.
The function now returns:
- 0 on success (including when updating existing entries)
- -ENOMEM when memory allocation fails
This change improves error reporting without breaking existing callers,
as the current callers in drivers/video/fbdev/core/fbmem.c already
ignore the return value, making this a backward-compatible improvement.
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Malaya Kumar Rout <mrout@redhat.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patch.msgid.link/20251013193028.89570-1-mrout@redhat.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
According to the CRB over FF-A specification [1], a TPM that implements
the ABI must comply with the TCG PTP specification. This requires support
for the Idle and Ready states.
This patch implements CRB control area requests for goIdle and
cmdReady on FF-A based TPMs.
The FF-A message used to notify the TPM of CRB updates includes a
locality parameter, which provides a hint to the TPM about which
locality modified the CRB. This patch adds a locality parameter
to __crb_go_idle() and __crb_cmd_ready() to support this.
[1] https://developer.arm.com/documentation/den0138/latest/
Signed-off-by: Stuart Yoder <stuart.yoder@arm.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
* 'media-uapi' of git://git.lwn.net/linux: (23 commits)
docs: media: dvb: fix dmx.h.rst.exceptions
docs: media: dvb: headers: warn about broken cross references
docs: media: dmx_types: place kerneldoc at the right namespace
docs: cec: show broken xrefs and show TOC instead of cec.h content
docs: cec: cec.h.rst.exceptions: fix broken references from cec.h
media: docs: add some C domain missing references
media: docs: videodev2.h.rst.exceptions: ignore struct __kernel_v4l2_timeval
media: docs: add a missing reference for VIDIOC_QUERY_CTRL
docs: media: videodev2.h.rst.exceptions: fix namespace on refs
docs: media: add missing c namespace to V4L headers
docs: kernel_include.py: use get_close_matches() to propose alternatives
docs: media: mediactl: use TOC instead of file contents
docs: media: rc: use TOC instead of file contents for LIRC header
docs: media: dvb: enable warnings for most headers
docs: media: dvb: use TOC instead of file contents at headers
tools: docs: parse_data_structs.py: accept more reftypes
tools: docs: parse_data_structs.py: add namespace support
tools: docs: parse_data_structs.py: get rid of process_exceptions()
tools: docs: parse_data_structs: make process_exceptions two stages
docs: kernel_include.py: propose alternatives
...
- Expand the KVM_PRE_FAULT_MEMORY selftest to add a regression test for the
bug fixed by commit 3ccbf6f470 ("KVM: x86/mmu: Return -EAGAIN if userspace
deletes/moves memslot during prefault")
- Don't try to get PMU capabbilities from perf when running a CPU with hybrid
CPUs/PMUs, as perf will rightly WARN.
- Rework KVM_CAP_GUEST_MEMFD_MMAP (newly introduced in 6.18) into a more
generic KVM_CAP_GUEST_MEMFD_FLAGS
- Add a guest_memfd INIT_SHARED flag and require userspace to explicitly set
said flag to initialize memory as SHARED, irrespective of MMAP. The
behavior merged in 6.18 is that enabling mmap() implicitly initializes
memory as SHARED, which would result in an ABI collision for x86 CoCo VMs
as their memory is currently always initialized PRIVATE.
- Allow mmap() on guest_memfd for x86 CoCo VMs, i.e. on VMs with private
memory, to enable testing such setups, i.e. to hopefully flush out any
other lurking ABI issues before 6.18 is officially released.
- Add testcases to the guest_memfd selftest to cover guest_memfd without MMAP,
and host userspace accesses to mmap()'d private memory.
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Merge tag 'kvm-x86-fixes-6.18-rc2' of https://github.com/kvm-x86/linux into HEAD
KVM x86 fixes for 6.18:
- Expand the KVM_PRE_FAULT_MEMORY selftest to add a regression test for the
bug fixed by commit 3ccbf6f470 ("KVM: x86/mmu: Return -EAGAIN if userspace
deletes/moves memslot during prefault")
- Don't try to get PMU capabbilities from perf when running a CPU with hybrid
CPUs/PMUs, as perf will rightly WARN.
- Rework KVM_CAP_GUEST_MEMFD_MMAP (newly introduced in 6.18) into a more
generic KVM_CAP_GUEST_MEMFD_FLAGS
- Add a guest_memfd INIT_SHARED flag and require userspace to explicitly set
said flag to initialize memory as SHARED, irrespective of MMAP. The
behavior merged in 6.18 is that enabling mmap() implicitly initializes
memory as SHARED, which would result in an ABI collision for x86 CoCo VMs
as their memory is currently always initialized PRIVATE.
- Allow mmap() on guest_memfd for x86 CoCo VMs, i.e. on VMs with private
memory, to enable testing such setups, i.e. to hopefully flush out any
other lurking ABI issues before 6.18 is officially released.
- Add testcases to the guest_memfd selftest to cover guest_memfd without MMAP,
and host userspace accesses to mmap()'d private memory.
Complete the translation of rust/testing.rst and add the testing TOC entry
to rust/index.rst.
Add the translation based on commit a3b2347343
("Documentation: rust: testing: add docs on the new KUnit `#[test]` tests").
Signed-off-by: Ben Guo <benx.guo@gmail.com>
Reviewed-by: Yanteng Si <siyanteng@cqsoftware.com.cm>
Signed-off-by: Alex Shi <alexs@kernel.org>
Translate .../security/secrets/coco.rst into Chinese.
Update the translation through commit d56b699d76
("Documentation: Fix typos").
Signed-off-by: Shuo Zhao <zhaoshuo@cqsoftware.com.cn>
Reviewed-by: Yanteng Si <siyanteng@cqsoftware.com.cn>
Signed-off-by: Alex Shi <alexs@kernel.org>
Convert the legacy TXT binding for the TWL4030 keypad module
to the modern YAML DT schema format. This adds formal validation
and improves documentation by inheriting from the matrix-keymap schema.
Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250819222823.157943-1-jihed.chaibi.dev@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The dev_err_probe() doesn't do anything when error is '-ENOMEM'.
Therefore, remove the useless call to dev_err_probe(), and just
return the value instead.
Signed-off-by: Xichao Zhao <zhao.xichao@vivo.com>
Link: https://patch.msgid.link/20250822034751.244248-3-zhao.xichao@vivo.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The dev_err_probe() doesn't do anything when error is '-ENOMEM'.
Therefore, remove the useless call to dev_err_probe(), and just
return the value instead.
Signed-off-by: Xichao Zhao <zhao.xichao@vivo.com>
Link: https://patch.msgid.link/20250822034751.244248-2-zhao.xichao@vivo.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Convert the existing text-based DT bindings for MELFAS MIP4 Touchscreen
controller to a DT schema.
Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@collabora.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20251001183809.83472-1-ariel.dalessandro@collabora.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
The hwprobe vDSO data for some keys, like MISALIGNED_VECTOR_PERF,
is determined by an asynchronous kthread. This can create a race
condition where the kthread finishes after the vDSO data has
already been populated, causing userspace to read stale values.
To fix this race, a new 'ready' flag is added to the vDSO data,
initialized to 'false' during arch_initcall_sync. This flag is
checked by both the vDSO's user-space code and the riscv_hwprobe
syscall. The syscall serves as a one-time gate, using a completion
to wait for any pending probes before populating the data and
setting the flag to 'true', thus ensuring userspace reads fresh
values on its first request.
Reported-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Closes: https://lore.kernel.org/linux-riscv/760d637b-b13b-4518-b6bf-883d55d44e7f@irq.a4lg.com/
Fixes: e7c9d66e31 ("RISC-V: Report vector unaligned access speed hwprobe")
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: stable@vger.kernel.org
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Co-developed-by: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
Signed-off-by: Jingwei Wang <wangjingwei@iscas.ac.cn>
Link: https://lore.kernel.org/r/20250811142035.105820-1-wangjingwei@iscas.ac.cn
[pjw@kernel.org: fix checkpatch issues]
Signed-off-by: Paul Walmsley <pjw@kernel.org>
ar1021 have only reg and interrupts property beside touch common
properties. So move context of ar1021.txt into trivial-touch.yaml.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20250926184720.391335-2-Frank.Li@nxp.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Rename maxim,max11801.yaml to trivial-touch.yaml for simple i2c touch
controller with one interrupt and common touch properties.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250926184720.391335-1-Frank.Li@nxp.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
