linux/Documentation
Richard Maina 2da121e397 hwspinlock: Introduce hwspin_lock_bust()
[ Upstream commit 7c327d5659 ]

When a remoteproc crashes or goes down unexpectedly this can result in
a state where locks held by the remoteproc will remain locked possibly
resulting in deadlock. This new API hwspin_lock_bust() allows
hwspinlock implementers to define a bust operation for freeing previously
acquired hwspinlocks after verifying ownership of the acquired lock.

Signed-off-by: Richard Maina <quic_rmaina@quicinc.com>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Chris Lew <quic_clew@quicinc.com>
Link: https://lore.kernel.org/r/20240529-hwspinlock-bust-v3-1-c8b924ffa5a2@quicinc.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-09-12 11:07:41 +02:00
..
ABI x86/rfds: Mitigate Register File Data Sampling (RFDS) 2024-04-10 16:18:48 +02:00
accounting sched/psi: report zeroes for CPU full at the system level 2022-06-09 10:22:48 +02:00
admin-guide clocksource: Scale the watchdog read retries automatically 2024-08-19 05:45:45 +02:00
arm Documentation: arm: marvell: Add 88F6825 model into list 2021-08-24 13:26:32 -06:00
arm64 arm64: cpufeature: Fix the visibility of compat hwcaps 2024-08-19 05:45:51 +02:00
block Documentation: block: blk-mq: Fix small typo in multi-queue docs 2021-08-24 13:30:00 -06:00
bpf libbpf: Rename libbpf documentation index file 2021-08-18 08:45:25 -07:00
cdrom
core-api dma-mapping: add dma_opt_mapping_size() 2024-04-10 16:18:47 +02:00
cpu-freq cpufreq: Remove ready() callback 2021-09-02 18:04:17 +02:00
crypto
dev-tools docs/scripts/gdb: add necessary make scripts_gdb step 2023-03-10 09:39:53 +01:00
devicetree dt-bindings: thermal: correct thermal zone node name limit 2024-08-19 05:45:10 +02:00
doc-guide
driver-api fpga: region: add owner module and take its refcount 2024-06-16 13:39:38 +02:00
fault-injection debugfs: fix error when writing negative value to atomic_t debugfs file 2022-12-31 13:14:03 +01:00
fb
features RISC-V Patches for the 5.15 Merge Window, Part 2 2021-09-11 14:29:42 -07:00
filesystems Revert "lockd: introduce safe async lock op" 2024-04-27 17:05:23 +02:00
firmware_class
firmware-guide Documentation: ACPI: EINJ: Fix obsolete example 2022-08-25 11:40:01 +02:00
fpga
gpu drm/i915/display: Move DRRS code its own file 2022-03-08 19:12:40 +01:00
hid
hwmon hwmon: (ftsteutates) Fix scaling of measurements 2023-03-10 09:39:21 +01:00
i2c Documentation: i2c: add i2c-sysfs into index 2021-08-10 22:58:32 +02:00
ia64
ide
iio
infiniband
input Input: iforce - add support for Boeder Force Feedback Wheel 2022-09-20 12:39:45 +02:00
isdn
kbuild Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
kernel-hacking docs: futex: Fix kernel-doc references after code split-up preparation 2023-04-26 13:51:53 +02:00
leds Documentation: leds: standartizing LED names 2021-08-20 10:26:24 +02:00
litmus-tests
livepatch
locking hwspinlock: Introduce hwspin_lock_bust() 2024-09-12 11:07:41 +02:00
m68k
maintainer
mhi
mips
misc-devices
netlabel
networking net: ena: Add dynamic recycling mechanism for rx buffers 2024-06-16 13:39:52 +02:00
nios2
nvdimm
openrisc
parisc
PCI pci-v5.15-changes 2021-09-07 19:13:42 -07:00
pcmcia
power Documentation: power: include kernel-doc in Energy Model doc 2021-09-07 21:17:28 +02:00
powerpc powerpc/doc: Fix htmldocs errors 2021-08-27 00:56:34 +10:00
process docs/process/howto: Replace C89 with C11 2023-12-13 18:36:46 +01:00
RCU
riscv riscv: Move early dtb mapping into the fixmap region 2023-05-01 08:23:24 +09:00
s390
scheduler
scsi scsi: core: Fix the scsi_set_resid() documentation 2023-09-19 12:22:50 +02:00
security KEYS: trusted: allow use of kernel RNG for key material 2023-10-19 23:05:33 +02:00
sh
sound ASoC: doc: Fix undefined SND_SOC_DAPM_NOPM argument 2024-02-23 08:54:46 +01:00
sparc
sphinx docs: kernel_include.py: Cope with docutils 0.21 2024-05-25 16:20:19 +02:00
sphinx-static
spi
staging
target
timers
trace tracing/probes: Add symstr type for dynamic events 2023-08-03 10:22:30 +02:00
translations docs/process/howto: Replace C89 with C11 2023-12-13 18:36:46 +01:00
tty/device_drivers serial: 8250: Add proper clock handling for OxSemi PCIe devices 2022-08-17 14:24:23 +02:00
usb docs: usb: fix malformed table 2021-08-05 12:31:51 +02:00
userspace-api Remove DECnet support from kernel 2023-06-21 15:59:15 +02:00
virt KVM: s390: disable migration mode when dirty tracking is disabled 2023-03-10 09:40:01 +01:00
vm Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
w1
watchdog
x86 x86/bugs: Use ALTERNATIVE() instead of mds_user_clear static key 2024-04-10 16:18:48 +02:00
xtensa
.gitignore
arch.rst
asm-annotations.rst
atomic_bitops.txt locking/atomic: Make test_and_*_bit() ordered on failure 2022-08-25 11:39:54 +02:00
atomic_t.txt Documentation/atomic_t: Document forward progress expectations 2021-08-04 15:16:47 +02:00
Changes
CodingStyle
conf.py docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0 2022-06-09 10:23:30 +02:00
COPYING-logo
docutils.conf
dontdiff
index.rst
Kconfig
logo.gif
Makefile
memory-barriers.txt
SubmittingPatches
watch_queue.rst