Microdia JP001 does not support reading the sample rate which leads to
many lines of "cannot get freq at ep 0x84".
This patch adds the USB ID to quirks.c and avoids those error messages.
usb 7-4: New USB device found, idVendor=0c45, idProduct=636b, bcdDevice= 1.00
usb 7-4: New USB device strings: Mfr=2, Product=1, SerialNumber=3
usb 7-4: Product: JP001
usb 7-4: Manufacturer: JP001
usb 7-4: SerialNumber: JP001
usb 7-4: 3:1: cannot get freq at ep 0x84
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicolas Chauvet <kwizart@gmail.com>
Link: https://patch.msgid.link/20250515102132.73062-1-kwizart@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The function snd_es1968_capture_open() calls the function
snd_pcm_hw_constraint_pow2(), but does not check its return
value. A proper implementation can be found in snd_cx25821_pcm_open().
Add error handling for snd_pcm_hw_constraint_pow2() and propagate its
error code.
Fixes: b942cf815b ("[ALSA] es1968 - Fix stuttering capture")
Cc: stable@vger.kernel.org # v2.6.22
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Link: https://patch.msgid.link/20250514092444.331-1-vulab@iscas.ac.cn
Signed-off-by: Takashi Iwai <tiwai@suse.de>
A user reported on the Arch Linux Forums that their device is emitting
the following message in the kernel journal, which is fixed by adding
the quirk as submitted in this patch:
> kernel: usb 1-2: current rate 8436480 is different from the runtime rate 48000
There also is an entry for this product line added long time ago.
Their specific device has the following ID:
$ lsusb | grep Audio
Bus 001 Device 002: ID 1101:0003 EasyPass Industrial Co., Ltd Audioengine D1
Link: https://bbs.archlinux.org/viewtopic.php?id=305494
Fixes: 93f9d1a4ac ("ALSA: usb-audio: Apply sample rate quirk for Audioengine D1")
Cc: stable@vger.kernel.org
Signed-off-by: Christian Heusel <christian@heusel.eu>
Link: https://patch.msgid.link/20250512-audioengine-quirk-addition-v1-1-4c370af6eff7@heusel.eu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
When an event with UMP message is sent to a UMP client, the EP port
receives always no matter where the event is sent to, as it's a
catch-all port. OTOH, if an event is sent to EP port, and if the
event has a certain UMP Group, it should have been delivered to the
associated UMP Group port, too, but this was ignored, so far.
This patch addresses the behavior. Now a UMP event sent to the
Endpoint port will be delivered to the subscribers of the UMP group
port the event is associated with.
The patch also does a bit of refactoring to simplify the code about
__deliver_to_subscribers().
Fixes: 177ccf811d ("ALSA: seq: Support MIDI 2.0 UMP Endpoint port")
Link: https://patch.msgid.link/20250511134528.6314-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
ASoC: Fixes for v6.15
A moderately large batch of fixes for v6.15, many driver specific
including cleanups for the enabling of the Cirrus KUnit tests and a fix
for a nasty crash on resume on AMD systems. We also have one core fix,
for an ordering issue between DAPM and DPCM which could leave things
incorrectly unpowered.
Merge series from Stefan Binding <sbinding@opensource.cirrus.com>:
Both CS35L56 and CS42L43 have maximum volumes above 0dB.
However, for many use cases, this can cause distorted audio, depending
various factors, such as other signal-processing elements in the chain,
for example if the audio passes through a gain control before reaching
the amp or the signal path has been tuned for a particular maximum
gain in the amp.
In the cases where systems use the soc_sdw_* drivers, audio above the
0dB volume will likely always be distorted, therefore apply a 0dB
limit to those devices.
Stefan Binding (2):
ASoC: intel/sdw_utils: Add volume limit to cs42l43 speakers
ASoC: intel/sdw_utils: Add volume limit to cs35l56 speakers
include/sound/soc_sdw_utils.h | 1 +
sound/soc/sdw_utils/soc_sdw_bridge_cs35l56.c | 4 ++++
sound/soc/sdw_utils/soc_sdw_cs42l43.c | 10 ++++++++
sound/soc/sdw_utils/soc_sdw_cs_amp.c | 24 ++++++++++++++++++++
4 files changed, 39 insertions(+)
--
2.43.0
Merge series from Olivier Moysan <olivier.moysan@foss.st.com>:
This patchset adds some checks on kernel minimum rate requirements.
This avoids potential clock rate misconfiguration, when setting the
kernel frequency on STM32MP2 SoCs.
If any Soundwire manager interrupt is reported, and wake interrupt
is not reported, in this scenario irq_flag will be set to zero,
which results in interrupt handler return status as IRQ_NONE.
Add new irq flag 'wake_irq_flag' check for SoundWire wake interrupt
handling to fix incorrect irq handling return status.
Fixes: 3898b18907 ("ASoC: amd: ps: add soundwire wake interrupt handling")
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://patch.msgid.link/20250430195517.3065308-1-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Actually check if the passed pointers are valid, before writing to them.
This also fixes a USBAN warning:
UBSAN: invalid-load in ../sound/soc/fsl/imx-card.c:687:25
load of value 255 is not a valid value for type '_Bool'
This is because playback_only is uninitialized and is not written to, as
the playback-only property is absent.
Fixes: 844de7eebe ("ASoC: audio-graph-card2: expand dai_link property part")
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://patch.msgid.link/20250429094910.1150970-1-alexander.stein@ew.tq-group.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The volume control for cs35l56 speakers has a maximum gain of +12 dB.
However, for many use cases, this can cause distorted audio, depending
various factors, such as other signal-processing elements in the chain,
for example if the audio passes through a gain control before reaching
the amp or the signal path has been tuned for a particular maximum
gain in the amp.
In the case of systems which use the soc_sdw_* driver, audio will
likely be distorted in all cases above 0 dB, therefore add a volume
limit of 400, which is 0 dB maximum volume inside this driver.
The volume limit should be applied to both soundwire and soundwire
bridge configurations.
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Link: https://patch.msgid.link/20250430103134.24579-3-sbinding@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The volume control for cs42l43 speakers has a maximum gain of +31.5 dB.
However, for many use cases, this can cause distorted audio, depending
various factors, such as other signal-processing elements in the chain,
for example if the audio passes through a gain control before reaching
the codec or the signal path has been tuned for a particular maximum
gain in the codec.
In the case of systems which use the soc_sdw_cs42l43 driver, audio will
likely be distorted in all cases above 0 dB, therefore add a volume
limit of 128, which is 0 dB maximum volume inside this driver.
Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20250430103134.24579-2-sbinding@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
On MP2 SoCs SAI kernel clock rate is managed through
stm32_sai_set_parent_rate() function.
If the kernel clock rate was set previously to a low frequency, this
frequency may be too low to support the newly requested audio stream rate.
However the stm32_sai_rate_accurate() will only check accuracy against
the maximum kernel clock rate. The function will return leaving the kernel
clock rate unchanged.
Add a check on minimal frequency requirement, to avoid this.
Fixes: 2cfe1ff225 ("ASoC: stm32: sai: add stm32mp25 support")
Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://patch.msgid.link/20250430165210.321273-3-olivier.moysan@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
the frequency of the kernel clock must be greater than or equal to the
bitclock rate. When searching for a convenient kernel clock rate in
stm32_sai_set_parent_rate() function, it is useless to continue the loop
below bitclock rate, as it will result in a invalid kernel clock rate.
Change the loop output condition.
Fixes: 2cfe1ff225 ("ASoC: stm32: sai: add stm32mp25 support")
Signed-off-by: Olivier Moysan <olivier.moysan@foss.st.com>
Link: https://patch.msgid.link/20250430165210.321273-2-olivier.moysan@foss.st.com
Signed-off-by: Mark Brown <broonie@kernel.org>
A few ASUS models use the ALC256_FIXUP_ASUS_HEADSET_MODE although they
have no built-in mic pin on NID 0x13, as found in the commit
c1732ede5e ("ALSA: hda/realtek - Fix headset and mic on several Asus
laptops with ALC256"). This was relatively harmless in the past as
NID 0x13 was assigned as the secondary mic. But since the fix for the
pin sort order, this pin became the primary one, hence user started
noticing the broken input, and we've fixed already for a few ASUS
models to switch to ALC256_FIXUP_ASUS_MIC_NO_PRESENCE.
This patch corrects the other ASUS models to use the right quirk entry
for fixing the built-in mic regression. Here we cover X541SA
(1043:12e0), X541UV (1043:12f0), Z550SA (1043:13bf0) and X555UB
(1043:1ccd).
Fixes: 3b4309546b ("ALSA: hda: Fix headset detection failure due to unstable sort")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=220058
Link: https://patch.msgid.link/20250430053210.31776-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Depending on the architecture __ffs() returns either an 'unsigned long'
or 'unsigned int' result. Compile-testing this driver on targets that
use the latter produces a warning:
sound/soc/intel/catpt/dsp.c: In function 'catpt_dsp_set_srampge':
sound/soc/intel/catpt/dsp.c:181:44: error: format '%ld' expects argument of type 'long int', but argument 4 has type 'u32' {aka 'unsigned int'} [-Werror=format=]
181 | dev_dbg(cdev->dev, "sanitize block %ld: off 0x%08x\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Change the type of the local variable to match the format string and
avoid the warning on any architecture.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20250429073545.3558494-1-arnd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The MIDI substream name string is constructed from the combination of
the card shortname (which is taken from USB iProduct) and the USB
iJack. The problem is that some devices put the product name to the
iJack field, too. For example, aplaymidi -l output on the Lanchkey MK
49 are like:
% aplaymidi -l
Port Client name Port name
44:0 Launchkey MK4 49 Launchkey MK4 49 Launchkey MK4
44:1 Launchkey MK4 49 Launchkey MK4 49 Launchkey MK4
where the actual iJack name can't be seen because it's truncated due
to the doubly words.
For resolving those situations, this patch compares the iJack string
with the card shortname, and drops if both start with the same words.
Then the result becomes like:
% aplaymidi -l
Port Client name Port name
40:0 Launchkey MK4 49 Launchkey MK4 49 MIDI In
40:1 Launchkey MK4 49 Launchkey MK4 49 DAW In
A caveat is that there are some pre-defined names for certain
devices in the driver code, and this workaround shouldn't be applied
to them. Similarly, when the iJack isn't specified, we should skip
this check, too. The patch added those checks in addition to the
string comparison.
Suggested-by: Paul Davis <paul@linuxaudiosystems.com>
Tested-by: Paul Davis <paul@linuxaudiosystems.com>
Link: https://lore.kernel.org/CAFa_cKmEDQWcJatbYWi6A58Zg4Ma9_6Nr3k5LhqwyxC-P_kXtw@mail.gmail.com
Link: https://patch.msgid.link/20250429183626.20773-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The conversion function from MIDI 1.0 to UMP packet contains an
internal buffer to keep the incoming MIDI bytes, and its size is 4, as
it was supposed to be the max size for a MIDI1 UMP packet data.
However, the implementation overlooked that SysEx is handled in a
different format, and it can be up to 6 bytes, as found in
do_convert_to_ump(). It leads eventually to a buffer overflow, and
may corrupt the memory when a longer SysEx message is received.
The fix is simply to extend the buffer size to 6 to fit with the SysEx
UMP message.
Fixes: 0b5288f5fe ("ALSA: ump: Add legacy raw MIDI support")
Reported-by: Argusee <vr@darknavy.com>
Link: https://patch.msgid.link/20250429124845.25128-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This hardware has ALC274 codec with speaker NID 0x17 and line out
NID 0x16 for audio output. The line out is routed correctly but
the speaker is not. Thus the volume can't be controlled.
This patch removes DAC NID 0x06 (without volume control) from the
connection list for speaker NID 0x17. Routing both speaker and line
out pins to DAC NID 0x02 which controls the output volume.
Signed-off-by: Chris Chiu <chris.chiu@canonical.com>
Link: https://patch.msgid.link/20250425103618.534951-1-chris.chiu@canonical.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Pull PCI fixes from Bjorn Helgaas:
- When releasing a start-aligned resource, e.g., a bridge window, save
start/end/flags for the next assignment attempt; fixes a v6.15-rc1
regression (Ilpo Järvinen)
- Move set_pcie_speed.sh from TEST_PROGS to TEST_FILE; fixes a bwctrl
selftest v6.15-rc1 regression (Ilpo Järvinen)
- Add Manivannan Sadhasivam as maintainer of native host bridge and
endpoint drivers (Manivannan Sadhasivam)
- In endpoint test driver, defer IRQ allocation from .probe() until
ioctl() to fix a regression on platforms where the Vendor/Device ID
match doesn't include driver_data (Niklas Cassel)
* tag 'pci-v6.15-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
misc: pci_endpoint_test: Defer IRQ allocation until ioctl(PCITEST_SET_IRQTYPE)
MAINTAINERS: Move Manivannan Sadhasivam as PCI Native host bridge and endpoint maintainer
selftests/pcie_bwctrl: Fix test progs list
PCI: Restore assigned resources fully after release
Pull nfsd fix from Chuck Lever:
- Revert a v6.15 patch due to a report of SELinux test failures
* tag 'nfsd-6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
Revert "sunrpc: clean cache_detail immediately when flush is written frequently"
Pull misc x86 fixes from Ingo Molnar:
- Fix 32-bit kernel boot crash if passed physical memory with more than
32 address bits
- Fix Xen PV crash
- Work around build bug in certain limited build environments
- Fix CTEST instruction decoding in insn_decoder_test
* tag 'x86-urgent-2025-04-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/insn: Fix CTEST instruction decoding
x86/boot: Work around broken busybox 'truncate' tool
x86/mm: Fix _pgd_alloc() for Xen PV mode
x86/e820: Discard high memory that can't be addressed by 32-bit systems
Pull scheduler fix from Ingo Molnar:
"Fix sporadic crashes in dequeue_entities() due to ... bad math.
[ Arguably if pick_eevdf()/pick_next_entity() was less trusting of
complex math being correct it could have de-escalated a crash into
a warning, but that's for a different patch ]"
* tag 'sched-urgent-2025-04-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/eevdf: Fix se->slice being set to U64_MAX and resulting crash
Pull misc perf events fixes from Ingo Molnar:
- Use POLLERR for events in error state, instead of the ambiguous
POLLHUP error value
- Fix non-sampling (counting) events on certain x86 platforms
* tag 'perf-urgent-2025-04-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86: Fix non-sampling (counting) events on certain x86 platforms
perf/core: Change to POLLERR for pinned events with error
Pull irq fix from Ingo Molnar:
"Fix crashes in the gic-v2m irqchip driver, caused by an incorrect
__init annotation"
* tag 'irq-urgent-2025-04-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode()
Pull LoongArch fixes from Huacai Chen:
"Add a missing Kconfig option, fix some bugs in exception handlers,
memory management and KVM"
* tag 'loongarch-fixes-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: KVM: Fix PMU pass-through issue if VM exits to host finally
LoongArch: KVM: Fully clear some CSRs when VM reboot
LoongArch: KVM: Fix multiple typos of KVM code
LoongArch: Return NULL from huge_pte_offset() for invalid PMD
LoongArch: Remove a bogus reference to ZONE_DMA
LoongArch: Handle fp, lsx, lasx and lbt assembly symbols
LoongArch: Make do_xyz() exception handlers more robust
LoongArch: Make regs_irqs_disabled() more clear
LoongArch: Select ARCH_USE_MEMTEST
Pull OpenRISC updates from Stafford Horne:
- Support for cacheinfo API to expose OpenRISC cache info via sysfs,
this also translated to some cleanups to OpenRISC cache flush and
invalidate API's
- Documentation updates for new mailing list and toolchain binaries
* tag 'for-linus' of https://github.com/openrisc/linux:
Documentation: openrisc: Update toolchain binaries URL
Documentation: openrisc: Update mailing list
openrisc: Add cacheinfo support
openrisc: Introduce new utility functions to flush and invalidate caches
openrisc: Refactor struct cpuinfo_or1k to reduce duplication
Ondrej reports that certain SELinux tests are failing after commit
fc2a169c56 ("sunrpc: clean cache_detail immediately when flush is
written frequently"), merged during the v6.15 merge window.
Reported-by: Ondrej Mosnacek <omosnace@redhat.com>
Fixes: fc2a169c56 ("sunrpc: clean cache_detail immediately when flush is written frequently")
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Pull kunit fix from Kees Cook:
"A single fix for the kunit lib/tests/ relocation:
- Ensure prime numbers tests are included in KUnit test runs (Mark Brown)"
* tag 'move-lib-kunit-v6.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
lib: Ensure prime numbers tests are included in KUnit test runs
Pull drm fixes from Dave Airlie:
"Weekly drm fixes, mostly amdgpu, with some exynos cleanups and a
couple of minor fixes, seems a bit quiet, but probably some lag from
Easter holidays.
amdgpu:
- P2P DMA fixes
- Display reset fixes
- DCN 3.5 fixes
- ACPI EDID fix
- LTTPR fix
- mode_valid() fix
exynos:
- fix spelling error
- remove redundant error handling in exynos_drm_vidi.c module
- marks struct decon_data as const in the exynos7_drm_decon driver
since it is only read
- Remove unnecessary checking in exynos_drm_drv.c module
meson:
- Fix VCLK calculation
panel:
- jd9365a: Fix reset polarity"
* tag 'drm-fixes-2025-04-26' of https://gitlab.freedesktop.org/drm/kernel:
drm/exynos: Fix spelling mistake "enqueu" -> "enqueue"
drm/exynos: exynos7_drm_decon: Consstify struct decon_data
drm/exynos: fixed a spelling error
drm/exynos/vidi: Remove redundant error handling in vidi_get_modes()
drm/exynos: Remove unnecessary checking
drm/amd/display: do not copy invalid CRTC timing info
drm/amd/display: Default IPS to RCG_IN_ACTIVE_IPS2_IN_OFF
drm/amd/display: Use 16ms AUX read interval for LTTPR with old sinks
drm/amd/display: Fix ACPI edid parsing on some Lenovo systems
drm/amdgpu: Allow P2P access through XGMI
drm/amd/display: Enable urgent latency adjustment on DCN35
drm/amd/display: Force full update in gpu reset
drm/amd/display: Fix gpu reset in multidisplay config
drm/amdgpu: Don't pin VRAM without DMABUF_MOVE_NOTIFY
drm/amdgpu: Use allowed_domains for pinning dmabufs
drm: panel: jd9365da: fix reset signal polarity in unprepare
drm/meson: use unsigned long long / Hz for frequency types
Revert "drm/meson: vclk: fix calculation of 59.94 fractional rates"
There is a code path in dequeue_entities() that can set the slice of a
sched_entity to U64_MAX, which sometimes results in a crash.
The offending case is when dequeue_entities() is called to dequeue a
delayed group entity, and then the entity's parent's dequeue is delayed.
In that case:
1. In the if (entity_is_task(se)) else block at the beginning of
dequeue_entities(), slice is set to
cfs_rq_min_slice(group_cfs_rq(se)). If the entity was delayed, then
it has no queued tasks, so cfs_rq_min_slice() returns U64_MAX.
2. The first for_each_sched_entity() loop dequeues the entity.
3. If the entity was its parent's only child, then the next iteration
tries to dequeue the parent.
4. If the parent's dequeue needs to be delayed, then it breaks from the
first for_each_sched_entity() loop _without updating slice_.
5. The second for_each_sched_entity() loop sets the parent's ->slice to
the saved slice, which is still U64_MAX.
This throws off subsequent calculations with potentially catastrophic
results. A manifestation we saw in production was:
6. In update_entity_lag(), se->slice is used to calculate limit, which
ends up as a huge negative number.
7. limit is used in se->vlag = clamp(vlag, -limit, limit). Because limit
is negative, vlag > limit, so se->vlag is set to the same huge
negative number.
8. In place_entity(), se->vlag is scaled, which overflows and results in
another huge (positive or negative) number.
9. The adjusted lag is subtracted from se->vruntime, which increases or
decreases se->vruntime by a huge number.
10. pick_eevdf() calls entity_eligible()/vruntime_eligible(), which
incorrectly returns false because the vruntime is so far from the
other vruntimes on the queue, causing the
(vruntime - cfs_rq->min_vruntime) * load calulation to overflow.
11. Nothing appears to be eligible, so pick_eevdf() returns NULL.
12. pick_next_entity() tries to dereference the return value of
pick_eevdf() and crashes.
Dumping the cfs_rq states from the core dumps with drgn showed tell-tale
huge vruntime ranges and bogus vlag values, and I also traced se->slice
being set to U64_MAX on live systems (which was usually "benign" since
the rest of the runqueue needed to be in a particular state to crash).
Fix it in dequeue_entities() by always setting slice from the first
non-empty cfs_rq.
Fixes: aef6987d89 ("sched/eevdf: Propagate min_slice up the cgroup hierarchy")
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lkml.kernel.org/r/f0c2d1072be229e1bdddc73c0703919a8b00c652.1745570998.git.osandov@fb.com
With ACPI in place, gicv2m_get_fwnode() is registered with the pci
subsystem as pci_msi_get_fwnode_cb(), which may get invoked at runtime
during a PCI host bridge probe. But, the call back is wrongly marked as
__init, causing it to be freed, while being registered with the PCI
subsystem and could trigger:
Unable to handle kernel paging request at virtual address ffff8000816c0400
gicv2m_get_fwnode+0x0/0x58 (P)
pci_set_bus_msi_domain+0x74/0x88
pci_register_host_bridge+0x194/0x548
This is easily reproducible on a Juno board with ACPI boot.
Retain the function for later use.
Fixes: 0644b3daca ("irqchip/gic-v2m: acpi: Introducing GICv2m ACPI support")
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
In function kvm_pre_enter_guest(), it prepares to enter guest and check
whether there are pending signals or events. And it will not enter guest
if there are, PMU pass-through preparation for guest should be cancelled
and host should own PMU hardware.
Cc: stable@vger.kernel.org
Fixes: f4e40ea9f7 ("LoongArch: KVM: Add PMU support for guest")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Some registers such as LOONGARCH_CSR_ESTAT and LOONGARCH_CSR_GINTC are
partly cleared with function _kvm_setcsr(). This comes from the hardware
specification, some bits are read only in VM mode, and however they can
be written in host mode. So they are partly cleared in VM mode, and can
be fully cleared in host mode.
These read only bits show pending interrupt or exception status. When VM
reset, the read-only bits should be cleared, otherwise vCPU will receive
unknown interrupts in boot stage.
Here registers LOONGARCH_CSR_ESTAT/LOONGARCH_CSR_GINTC are fully cleared
in ioctl KVM_REG_LOONGARCH_VCPU_RESET vCPU reset path.
Cc: stable@vger.kernel.org
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
LoongArch's huge_pte_offset() currently returns a pointer to a PMD slot
even if the underlying entry points to invalid_pte_table (indicating no
mapping). Callers like smaps_hugetlb_range() fetch this invalid entry
value (the address of invalid_pte_table) via this pointer.
The generic is_swap_pte() check then incorrectly identifies this address
as a swap entry on LoongArch, because it satisfies the "!pte_present()
&& !pte_none()" conditions. This misinterpretation, combined with a
coincidental match by is_migration_entry() on the address bits, leads to
kernel crashes in pfn_swap_entry_to_page().
Fix this at the architecture level by modifying huge_pte_offset() to
check the PMD entry's content using pmd_none() before returning. If the
entry is invalid (i.e., it points to invalid_pte_table), return NULL
instead of the pointer to the slot.
Cc: stable@vger.kernel.org
Acked-by: Peter Xu <peterx@redhat.com>
Co-developed-by: Hongchen Zhang <zhanghongchen@loongson.cn>
Signed-off-by: Hongchen Zhang <zhanghongchen@loongson.cn>
Signed-off-by: Ming Wang <wangming01@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Remove dead code. LoongArch does not have a DMA memory zone (24bit DMA).
The architecture does not even define MAX_DMA_PFN.
Cc: stable@vger.kernel.org
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Signed-off-by: Petr Tesarik <ptesarik@suse.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Like the other relevant symbols, export some fp, lsx, lasx and lbt
assembly symbols and put the function declarations in header files
rather than source files.
While at it, use "asmlinkage" for the other existing C prototypes
of assembly functions and also do not use the "extern" keyword with
function declarations according to the document coding-style.rst.
Cc: stable@vger.kernel.org # 6.6+
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Currently, interrupts need to be disabled before single-step mode is
set, it requires that CSR_PRMD_PIE be cleared in save_local_irqflag()
which is called by setup_singlestep(), this is reasonable.
But in the first kprobe breakpoint exception, if the irq is enabled at
the beginning of do_bp(), it will not be disabled at the end of do_bp()
due to the CSR_PRMD_PIE has been cleared in save_local_irqflag(). So for
this case, it may corrupt exception context when restoring the exception
after do_bp() in handle_bp(), this is not reasonable.
In order to restore exception safely in handle_bp(), it needs to ensure
the irq is disabled at the end of do_bp(), so just add a local variable
to record the original interrupt status in the parent context, then use
it as the check condition to enable and disable irq in do_bp().
While at it, do the similar thing for other do_xyz() exception handlers
to make them more robust.
Fixes: 6d4cc40fb5 ("LoongArch: Add kprobes support")
Suggested-by: Jinyang He <hejinyang@loongson.cn>
Suggested-by: Huacai Chen <chenhuacai@loongson.cn>
Co-developed-by: Tianyang Zhang <zhangtianyang@loongson.cn>
Signed-off-by: Tianyang Zhang <zhangtianyang@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
In the current code, the definition of regs_irqs_disabled() is actually
"!(regs->csr_prmd & CSR_CRMD_IE)" because arch_irqs_disabled_flags() is
defined as "!(flags & CSR_CRMD_IE)", it looks a little strange.
Define regs_irqs_disabled() as !(regs->csr_prmd & CSR_PRMD_PIE) directly
to make it more clear, no functional change.
While at it, the return value of regs_irqs_disabled() is true or false,
so change its type to reflect that and also make it always inline.
Fixes: 803b0fc5c3 ("LoongArch: Add process management")
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
As of commit dce4456619 ("mm/memtest: add ARCH_USE_MEMTEST"),
architectures must select ARCH_USE_MEMTESET to enable CONFIG_MEMTEST.
Commit 628c3bb40e ("LoongArch: Add boot and setup routines") added
support for early_memtest but did not select ARCH_USE_MEMTESET.
Fixes: 628c3bb40e ("LoongArch: Add boot and setup routines")
Tested-by: Erpeng Xu <xuerpeng@uniontech.com>
Tested-by: Yuli Wang <wangyuli@uniontech.com>
Signed-off-by: Yuli Wang <wangyuli@uniontech.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
Pull bpf fixes from Alexei Starovoitov:
- Add namespace to BPF internal symbols (Alexei Starovoitov)
- Fix possible endless loop in BPF map iteration (Brandon Kammerdiener)
- Fix compilation failure for samples/bpf on LoongArch (Haoran Jiang)
- Disable a part of sockmap_ktls test (Ihor Solodrai)
- Correct typo in __clang_major__ macro (Peilin Ye)
* tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests/bpf: Correct typo in __clang_major__ macro
samples/bpf: Fix compilation failure for samples/bpf on LoongArch Fedora
bpf: Add namespace to BPF internal symbols
selftests/bpf: add test for softlock when modifying hashmap while iterating
bpf: fix possible endless loop in BPF map iteration
selftests/bpf: Mitigate sockmap_ktls disconnect_after_delete failure
