| Age | Commit message (Collapse) | Author | Files | Lines |
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stripping
After switching to the kernel's default package scripts for our local
kernel RPM builds, we noticed that module BTF entries were missing:
$ ls /sys/kernel/btf/
vmlinux <<<< only vmlinux, no module BTF
Root cause: find-debuginfo.sh (from the debugedit package) prefers
eu-strip over strip when elfutils is installed, which is the common
case on RHEL 9. eu-strip removes non-allocated ELF sections, including
the .BTF section that contains BPF Type Format information for kernel
modules. Without .BTF, BPF tools (bpftool, bcc, bpftrace) cannot resolve
kernel types at runtime, and /sys/kernel/btf/<module> entries are not
created when modules are loaded.
Additionally, since commit 8646db238997 ("libbpf,bpf: Share BTF
relocate-related code with kernel"), modules contain a .BTF.base section
that maps distilled type IDs to vmlinux types. If .BTF.base is stripped,
btf_parse_module() falls back to vmlinux BTF directly, causing type ID
mismatches and rejecting the module's BTF entirely.
Fix by passing --keep-section .BTF and --keep-section .BTF.base via
_find_debuginfo_opts, which adds -K .BTF and -K .BTF.base to the
eu-strip/strip command, preserving both sections while allowing normal
debuginfo extraction to proceed.
After this change, all module BTF files are properly generated:
$ ls /sys/kernel/btf/
aesni_intel drm i2c_i801 mfd_core
ahci drm_client_lib i2c_mux net_failover
backlight drm_kms_helper i2c_smbus pcspkr
ccp drm_shmem_helper input_leds qemu_fw_cfg
dm_log failover intel_rapl_common sch_fq_codel
dm_mirror fat intel_rapl_msr serio_raw
dm_mod fuse irqbypass sunrpc
dm_region_hash gf128mul iTCO_wdt vfat
virtio_balloon virtio_console virtio_dma_buf virtio_gpu
virtio_net virtio_rng virtio_blk vmlinux
xfs
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Cc: Alan Maguire <alan.maguire@oracle.com>
Link: https://patch.msgid.link/20260728024950.44946-1-laoar.shao@gmail.com
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
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The HDMI CEC driver for both mt7623 and mt8167 is actually the same as
mt8173-cec and the mt7623n.dtsi board include file already uses mt8173-cec
compatible as a fallback, but the documentation lists them as separate
entries. Correct the binding by adding the correct fallback.
This change fixes the following dtbs_check errors:
DTC [C] arch/arm/boot/dts/mediatek/mt7623n-rfb-emmc.dtb
cec@10012000 (mediatek,mt7623-cec): compatible: ['mediatek,mt7623-cec',
'mediatek,mt8173-cec'] is too long
DTC [C] arch/arm/boot/dts/mediatek/mt7623n-bananapi-bpi-r2.dtb
cec@10012000 (mediatek,mt7623-cec): compatible: ['mediatek,mt7623-cec',
'mediatek,mt8173-cec'] is too long
Signed-off-by: Luca Leonardo Scorcia <l.scorcia@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patchwork.kernel.org/project/linux-mediatek/patch/20260624173627.19785-1-l.scorcia@gmail.com/
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
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bui duc phuc <phucduc.bui@gmail.com> says:
This series removes redundant error messages across multiple STM32 ASoC
drivers. Since core functions already log failures internally, dropping
these explicit dev_err() blocks prevents duplicate log messages and
cleans up the code.
Compile-tested only.
Link: https://patch.msgid.link/20260720074044.87528-1-phucduc.bui@gmail.com
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Both devm_request_irq() and snd_dmaengine_pcm_register() already log
failures internally. Drop the redundant error messages and return the
original errors directly.
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Link: https://patch.msgid.link/20260720074044.87528-5-phucduc.bui@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Both devm_request_irq() and snd_dmaengine_pcm_register() already log
failures internally. Drop the redundant error messages and return the
original errors directly.
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Link: https://patch.msgid.link/20260720074044.87528-4-phucduc.bui@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Both devm_request_irq() and snd_dmaengine_pcm_register() already log
failures internally. Drop the redundant error messages and return the
original errors directly.
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Link: https://patch.msgid.link/20260720074044.87528-3-phucduc.bui@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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devm_snd_soc_register_component() already logs the failure internally.
Drop the redundant error message and return the original error directly.
Signed-off-by: bui duc phuc <phucduc.bui@gmail.com>
Link: https://patch.msgid.link/20260720074044.87528-2-phucduc.bui@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Clean up coding style, SPDX comments, logging calls, and macro definitions
across the tlv320aic32x4 driver files:
- Convert SPDX comment blocks to // style in bus and clk drivers.
- Replace printk(KERN_ERR/DEBUG ...) calls with dev_err/dev_dbg.
- Replace msleep(10) with usleep_range(10000, 20000) in the clock driver.
- Parenthesize parameters in AIC32X4_REG macro.
- Clean up double blank lines and null pointer checks.
Assisted-by: Antigravity:gemini-3.5-flash
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://patch.msgid.link/20260726010519.117805-7-dmitry.torokhov@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Factor out sample-rate dependent parameter setup and processing block
configuration into a separate helper function aic32x4_configure_rate.
Assisted-by: Antigravity:gemini-3.5-flash
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://patch.msgid.link/20260726010519.117805-6-dmitry.torokhov@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Declaring local clk_bulk_data structures as static inside functions is bad
practice even if the driver is currently a singleton, because it relies on
mutable function-static state and interferes with multi-instance safety or
clean re-probing.
Remove static from the clocks bulk data arrays across the driver.
Assisted-by: Antigravity:gemini-3.5-flash
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://patch.msgid.link/20260726010519.117805-5-dmitry.torokhov@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Move regmap_config definitions to be static const structures in
tlv320aic32x4-i2c.c and tlv320aic32x4-spi.c instead of dynamically
modifying a shared base regmap_config at runtime during probe. Export
aic32x4_regmap_pages so both bus drivers can reference page ranges.
In addition, validate regmap initialization immediately upon creation in
both bus probe routines and remove the redundant error check from core
aic32x4_probe.
Assisted-by: Antigravity:gemini-3.5-flash
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://patch.msgid.link/20260726010519.117805-4-dmitry.torokhov@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Consolidate setting up of GPIO functions instead of repeating almost
the same code block 5 times.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://patch.msgid.link/20260726010519.117805-3-dmitry.torokhov@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Now that the driver only works with device tree we do not need to
keep GPIO config separate from the driver structure.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://patch.msgid.link/20260726010519.117805-2-dmitry.torokhov@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Commit 69d5b62c4bde ("ASoC: codec: tlv320aic32x4: Drop aic32x4_pdata
usage") removed support for platform data, but left a global header file
with #defines and platform data structure.
Move the contents to the driver-private header.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://patch.msgid.link/20260726010519.117805-1-dmitry.torokhov@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Warning: security/apparmor/apparmorfs.c:501 function parameter 'compressed_data' not described in 'aa_get_data_from_compressed'
Warning: security/apparmor/apparmorfs.c:501 function parameter 'compressed_data' not described in 'aa_get_data_from_compressed'
Warning: security/apparmor/apparmorfs.c:501 function parameter 'compressed_data' not described in 'aa_get_data_from_compressed'
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202607240144.4iqulDF1-lkp@intel.com/
Signed-off-by: John Johansen <john.johansen@canonical.com>
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Fixes:
[ 0.182121] WARNING: CPU: 0 PID: 1 at drivers/nvmem/brcm_nvram.c:85 brcm_nvram_probe+0x400/0x480
[ 0.182159] Unexpected (big) NVRAM size: 1056112 B
Fixes: 90a77291ac09 ("ARM: dts: BCM5301X: R8000 add NVRAM with MAC address for WAN port")
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://lore.kernel.org/r/20260628231049.1248899-1-rosenp@gmail.com
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
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PCIe controller 2 has interrupts 0-4 mapping to GIC SPI 138-142. The
mapping for interrupt 1 was incorrectly set to 138 due to a copy-paste
error. Fix it to 139.
Assisted-by: opencode:big-pickle
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://lore.kernel.org/r/20260725215722.9323-1-rosenp@gmail.com
Fixes: 3b3e35b279be ("ARM: dts: BCM5301X: Relicense AXI interrupts code to the GPL 2.0+ / MIT")
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
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With btrfs and other complex code paths the message
BUG_MAX_LOCKDEP_CHAIN_HLOCKS_TOO_LOW is triggered.
To avoid disabling lockdep increase CONFIG_LOCKDEP_CHAINS_BITS to 18.
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Implement load_unaligned_zeropad() and enable DCACHE_WORD_ACCESS to
speed up string operations in fs/dcache.c and fs/namei.c.
With the secure storage access exception cases addressed, add support
for DCACHE_WORD_ACCESS again.
Tested-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Make do_secure_storage_access() look more like the do_exception()
by using a goto statement to get rid of an extra open coded
mmap_read_unlock() call.
Just cosmetic, no functional change.
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Similar to the normal exception handler use handle_fault_error() which
handles accesses from user space and kernel space differently.
This also addresses failing kernel accesses via e.g. copy_from_user() to
user space: instead of an endless loop, the fixup handling is performed.
Even though this could only happen if arch_make_folio_accessible() would
permanently fail, which is not realistic.
Therefore this is rather a cleanup patch.
Acked-by: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Remove folio handling for secure storage access exceptions that happen
via the kernel mapping. Using folio_try_get() for exceptions via the
kernel mapping is racy: for example such an exception may happen on one
CPU, while a different CPU frees the corresponding page. Subsequently the
page can be part of a folio of different size, before the faulting CPU
executes folio_try_get(). This may lead to data corruption.
As of now this scenario does not seem to be possible, however with the
upcoming load_unaligned_zeropad() this is possible.
As a side effect PG_arch_1 is not cleared anymore for such faults via the
kernel mapping. However given that this bit is over-indicating it
shouldn't matter.
Tested-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Acked-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Secure storage access exceptions in vmalloc area need to be handled
separately since virt_to_phys() does not work on such addresses. Given
that there cannot be a valid access let such exceptions fail
immediately. The kernel will either fixup or crash.
Tested-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>> ---
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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do_secure_storage_access() uses find_vma() without verifying that the
faulting address is within the returned vma. Add this missing check by
converting to lock_mm_and_find_vma().
This is not a critical fix, since the worst that could happen is a
WARN_ON_ONCE() in folio_walk_start().
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Closes: https://lore.kernel.org/all/20260717093904.E4A421F00A3E@smtp.kernel.org/
Link: https://lore.kernel.org/all/20260717093904.E4A421F00A3E@smtp.kernel.org/
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Similar like the normal exception handler the secure storage access
exception handler needs to verify if mm is not NULL, which may happen
with kernel threads.
Reported-by: sashiko-bot <sashiko-bot@kernel.org>
Closes: https://lore.kernel.org/all/20260717132345.539A11F00A3A@smtp.kernel.org/
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>> ---
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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The guest variable storage area is allocated with vmalloc and then
donated to the ultravisor. Any kernel access to that area will result
in a secure storage access exception (aka fault).
This is a problem if such a memory area is read via /proc/kcore. This
causes an exception via vread_iter() and results in an unexpected short
read. Avoid this by allocating a custom VM_SPARSE area. If such an area
is read, vread_iter() returns zeroes for the entire area.
Note that the function which frees the area does not update ptes. This
is intentional to allow for deferred / lazy pte updates and TLB flushing
like the generic vfree() code is doing that. See vunmap_pte_range().
This assumes that s390 will gain full support for lazy_mmu_mode_enable()
and lazy_mmu_mode_disable() in the future, since as of now the used
ptep_get_and_clear() in vunmap_pte_range() does indeed invalidate and
flush every single pte entry, but only for s390.
Tested-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Instrument arch_spin_lock_wait() with trace_contention_begin() and
trace_contention_end().
These tracepoints are used by lock contention analysis tools such as
perf lock contention to identify contended locks and measure wait times.
Both the generic implementation and powerpc emit the same events from
their spinlock slow path.
Place the tracepoints in arch_spin_lock_wait(), which is only entered
when lock acquisition falls back to the contention path.
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Ciunas Bennett <ciunas@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Use explicit decleration on all shutdown_action/shutdown_trigger
declerations and reformat shutdown_actions_list decleration to
improve readability. No functional changes.
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Use ARRAY_SIZE macro instead of reimplementing it.
Signed-off-by: Mete Durlu <meted@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Follow the pattern established by commit c33c794828f2 ("mm:
ptep_get() conversion") and use proper PTE accessors instead
of a direct pointer dereference in memcpy_real_iter().
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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With the pkey rework there was the suggestion to rework the error and
free paths of the pkey ioctl functions. The complain was especially to
rewrite the failure handling with goto instead of all repeat the
nearly same code (kfree(), kfree_sensitive(), memzero_explicit()) for
each path. This patch removes all this duplicated code and introduces
one code block at the end of the functions which is jumped into via
goto out or executed on regular exit. As some helper functions return
an error pointer value (which is NOT NULL) make sure on the error path
there is not by accident kfree() or similar called on such ptr values.
Suggested-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Finn Callies <fcallies@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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A deep dive into the AP bus code and zcrypt device driver about the
usage of mutex locking showed that there is one questionable call in
ap_bus.c in function ap_bus_force_rescan(). This function may be
called in kernel and process context. In both contexts only one info
is important: was there a AP bus scan running and did it result in
some updates on the AP devices. So only true/false is returned but no
info like -EINTR. But still the mutex lock call should be
interruptible to be able to kill a user space program blocked forever
on this. So this patch replaces mutex_lock_interruptible() with
mutex_lock_killable() to be able to handle SIGKILL especially in user
space process context.
Suggested-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Harald Freudenberger <freude@linux.ibm.com>
Reviewed-by: Finn Callies <fcallies@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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While at it explicitly specify GNU_EH_FRAME PHDR to be read-only.
Inspired by x86 commit 8717b02b8c03 ("x86/entry/vdso: Include
GNU_PROPERTY and GNU_STACK PHDRs").
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Commit 2b2a25845d53 ("s390/vdso: Use $(LD) instead of $(CC) to link
vDSO") accidentally broke the GNU_EH_FRAME program table entry in
the vDSO, causing it to be empty:
$ readelf --program-headers arch/s390/kernel/vdso/vdso.so
...
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
...
GNU_EH_FRAME 0x0000000000000000 0x0000000000000000 0x0000000000000000
0x0000000000000000 0x0000000000000000 0x8
...
Originally, the compiler would implicitly add --eh-frame-hdr when
invoking the linker, but when this Makefile was converted from invoking
the linker via the compiler, to invoking it directly, the option was
missed.
This is the s390 variant of x86 commit cd01544a268a ("x86/vdso: Pass
--eh-frame-hdr to the linker").
Fixes: 2b2a25845d53 ("s390/vdso: Use $(LD) instead of $(CC) to link vDSO")
Reviewed-by: Ilya Leoshkevich <iii@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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Make the code a bit easier to read by defining SYSCALL_PER_TRAP
instead of passing '1' to __do_syscall().
Suggested-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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PIF_GUEST_FAULT is only used to pass information whether a fault was
caused when executing SIE or when executing host code. Instead of
using ptregs for this, just pass the flag directly as argument to
__do_pgm_check(). This also saves the time required to read the flag
from ptregs, although this likely isn't much as it is already in the
data cache.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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unistd_32.h is not build anymore since commit 4ac286c4a8d90
("s390/syscalls: Switch to generic system call table generation").
Thus drop the superfluous line from the Kbuild file now, too.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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SWIOTLB_DYNAMIC allows the SWIOTLB to grow on demand when the initial
bounce-buffer area is exhausted, instead of relying only on the pool
reserved at boot. This improves behavior under sustained I/O pressure.
In testing, exhaustion of the initial SWIOTLB area was observed under
real workloads such as large file transfers and package installation
workloads, where continued availability of bounce buffering was needed
to avoid guest-visible I/O stalls or failures.
When the current SWIOTLB capacity is exhausted, the dynamic expansion
path schedules asynchronous pool growth and then attempts immediate
non-blocking allocation of transient bounce-buffer memory.
In that path, the current implementation uses the generic DMA coherent
atomic pool for transient bounce-buffer allocations. Selecting
DMA_COHERENT_POOL together with SWIOTLB_DYNAMIC on s390 makes that
atomic fallback path available.
The coherent atomic pool is a generic DMA facility. By default, its size
is 128 KiB per 1 GiB of memory, with a minimum default size of 128 KiB,
and it can be adjusted with the coherent_pool= kernel parameter. The pool
itself can be exhausted, so this improves behavior under pressure, but
does not guarantee that DMA mappings will always succeed.
Select both options from s390 Kconfig so this support is available by
default on s390 systems.
Signed-off-by: Jaehoon Kim <jhkim@linux.ibm.com>
Acked-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Tested-by: Joshua Daley <jdaley@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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In s390 protected virtualization (PV) environments, guests use SWIOTLB
for virtio DMA. Because SWIOTLB_ANY is currently not passed to
swiotlb_init(), the SWIOTLB buffer is allocated from low memory, i.e.
from the first 2G of the physical address space on s390.
This restriction is unnecessary for s390 PV guests and limits the
available address range for the SWIOTLB buffer. In turn, that can limit
the maximum practical SWIOTLB size and make larger allocations more
likely to fail at boot, especially under memory fragmentation.
Pass SWIOTLB_ANY in pv_init() so the SWIOTLB buffer can be allocated
from any suitable memory instead of being restricted to low memory.
Signed-off-by: Jaehoon Kim <jhkim@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.ibm.com>
Tested-by: Joshua Daley <jdaley@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
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The audio output may become abnormal after a warm reboot from Windows.
Reset the codec once during hardware initialization to restore it to a known
state and prevent the issue.
BugLink: https://github.com/thesofproject/linux/issues/5845
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://patch.msgid.link/20260728090111.3676617-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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[Why]
We need to exit PSR/IPS before programming. Before calling DC for
programming in amdgpu_dm_commit_planes(), there's a
vblank_control_workqueue flush. This waits for IPS and PSR exit. (See
drm_vblank_on/off() > amdgpu_dm_crtc_set_vblank() --queue_work()->
amdgpu_dm_crtc_vblank_control_worker())
Prior to the tagged "Fixes:" change, drm_vblank_get() was called before
the workqueue flush. This ordering ensures that PSR exit occurred before
programming. After the "Fixes:" change, drm_vblank_get() is called after
the workqueue flush, leading to programming while idle optimizations are
still active. This can lead to incorrect flip_pending detection used by
vblank event delivery.
[How]
Split the vblank_get() component of `dm_arm_vblank_event()` into
`dm_arm_vblank_event_pre_programming()`, which is called before
programming. Call it before the vblank_control_workqueue flush.
Includes a drive-by cleanup of prepare_flip_isr(): the only caller is
dm_arm_vblank_event() and it's simple enough to roll-in.
v2: Fix checkpatch formatting warning on
drm_arm_vblank_event_pre_programming() arg alignment.
Fixes: 48ab86360af1 ("drm/amd/display: check GRPH_FLIP status before sending event")
Cc: stable@vger.kernel.org
Link: https://gitlab.freedesktop.org/drm/amd/-/work_items/4141#note_3583205
Link: https://gitlab.freedesktop.org/drm/amd/-/work_items/5527
Assisted-by: Codex:gpt-5.6-sol
Assisted-by: Claude:opus-5
Suggested-by: David Weber <weber.aulendorf@gmail.com>
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 05984e29520a28c27f5a2388742c957a6a87ee7a)
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APUs use firmware-owned DPM tables and do not support replacement through
pp_table. Generic callbacks can nevertheless expose the sysfs file and
accept an upload before resetting the power management stack.
Treat pp_table as unsupported on APUs. Use the same platform check in the
get and set paths to hide the file and reject uploads.
Fixes: 289921b03fe5 ("drm/amd/powerplay: implement sysfs of pp_table for smu11 (v2)")
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 74f28db2db69777cd2f059d50fe34e365ddd5add)
Cc: stable@vger.kernel.org
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There are a few issues here:
1) After we assign:
chan = dma_request_chan(&pdev->dev, "tx");
Then the error paths need to clean up before returning. The first
error path does a direct return.
2) The error paths check "dcmi->mdma_chan" but that is not assigned
until later so it results in memory leaks. Test "mdma_chan"
instead.
3) The error handling calls dma_release_channel(dcmi->dma_chan) before
"dcmi->dma_chan" has been assigned which leads to a NULL pointer
dereference. Use the "chan" variable instead.
I also moved the call to dma_release_channel() after the call to
dma_release_channel() so it mirrors the allocation code better.
Fixes: bc901885fae0 ("media: stm32: dcmi: perform dmaengine_slave_config at probe")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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The exposure and vertical blanking writes pass the address of the local
ret variable to cci_write() as its error pointer, but there is no earlier
error to propagate: each case is a single standalone write, like the other
controls in the same switch that already pass NULL. In the exposure case
ret is still uninitialized, so a non-zero stack value makes cci_write()
return early without programming the register, and the control write
reports a bogus status. The vertical blanking case is benign today because
ret is zero there, but the construct is equally wrong.
Pass NULL as the error pointer in both cases.
Fixes: be1589e567ae ("media: i2c: imx471: Add Sony IMX471 image sensor driver")
Suggested-by: Kate Hsuan <hpa@redhat.com>
Signed-off-by: David Carlier <devnexen@gmail.com>
Reviewed-by: Kate Hsuan <hpa@redhat.com>
Reviewed-by: Tarang Raval <tarang.raval@siliconsignals.io>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
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The ISPIF_VFE_m_RDI_INTF_n_PACK_CFG_0_CID_c_PLAIN() macro
declares a parameter named 'c' but uses 'cid' in the macro
body instead.
Rename the parameter to match the identifier used in the
macro body and silence the checkpatch warning:
WARNING: Argument 'c' is not used in function-like macro
No functional change intended.
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Hungyu Lin <dennylin0707@gmail.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
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Shikra contains the same Camera Subsystem IP as QCM2290. Document the
platform-specific compatible string, using qcom,qcm2290-camss as
fallback.
Unlike QCM2290, Shikra omits the CDM and OPE blocks, requiring only a
single IOMMU context bank instead of four.
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Nihal Kumar Gupta <nihal.gupta@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
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The iris encoder driver was not sending
HFI_PROP_TIME_DELTA_BASED_RATE_CONTROL to the firmware during encoder
initialization. Without this property, the firmware defaults to
time-delta-based rate control (enabled), which calculates the output
bitrate from actual frame timing rather than following the configured
bitrate target.
This caused variable bitrate (VBR) encoding to produce ~5x configured
bitrate. For example, with video_bitrate=896000 (896 Kbps), the output
is ~4.4 Mbps instead of the expected ~896 Kbps.
Time-delta-based rate control is designed for variable frame rate (VFR)
scenarios where the encoder adapts to actual frame timing. However, when
an application explicitly configures a bitrate target, the firmware must
follow that target regardless of frame timing.
Fix this by adding the TIME_DELTA_BASED_RC capability with a default value
of 0 (disabled) and sending HFI_PROP_TIME_DELTA_BASED_RATE_CONTROL = 0 to
the firmware during stream-on, allowing the firmware to use the configured
bitrate as the target.
Signed-off-by: Gourav Kumar <gouravk@qti.qualcomm.com>
Signed-off-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
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Add support for the Milos Iris codec. This only supports the variant
found on the SM7635-AB that has half of it's pipes disabled via efuse.
Signed-off-by: Alexander Koskovich <akoskovich@pm.me>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
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Add binding for Qualcomm Milos Iris video codec.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Alexander Koskovich <akoskovich@pm.me>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
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Add request key frame support for both gen1 and gen2 encoders by enabling
V4L2_CID_MPEG_VIDEO_FORCE_KEY_FRAME.
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Vishnu Reddy <busanna.reddy@oss.qualcomm.com>
Signed-off-by: Wangao Wang <wangao.wang@oss.qualcomm.com>
Reviewed-by: Vikash Garodia <vikash.garodia@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
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