linux-yocto/Documentation
Kefeng Wang 80bc1e5d9e asm-generic: Add memory barrier dma_mb()
[ Upstream commit ed59dfd950 ]

The memory barrier dma_mb() is introduced by commit a76a37777f
("iommu/arm-smmu-v3: Ensure queue is read after updating prod pointer"),
which is used to ensure that prior (both reads and writes) accesses
to memory by a CPU are ordered w.r.t. a subsequent MMIO write.

Reviewed-by: Arnd Bergmann <arnd@arndb.de> # for asm-generic
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Marco Elver <elver@google.com>
Link: https://lore.kernel.org/r/20220523113126.171714-2-wangkefeng.wang@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
Stable-dep-of: aa6956150f ("wifi: ath11k: fix dest ring-buffer corruption when ring is full")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28 16:24:36 +02:00
..
ABI x86/bugs: Add a Transient Scheduler Attacks mitigation 2025-07-10 15:57:50 +02:00
accounting sched/psi: report zeroes for CPU full at the system level 2022-06-09 10:22:48 +02:00
admin-guide x86/bugs: Add a Transient Scheduler Attacks mitigation 2025-07-10 15:57:50 +02:00
arm Documentation: arm: marvell: Add 88F6825 model into list 2021-08-24 13:26:32 -06:00
arm64 arm64: errata: Expand speculative SSBS workaround once more 2024-10-17 15:11:45 +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 kfence: allow use of a deferrable timer 2025-03-13 12:50:49 +01:00
devicetree dt-bindings: serial: 8250: Make clocks and clock-frequency exclusive 2025-07-10 15:57:39 +02:00
doc-guide
driver-api ipmi: docs: don't advertise deprecated sysfs entries 2024-10-17 15:10:54 +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 f2fs: doc: fix wrong quota mount option description 2025-08-28 16:24:12 +02:00
firmware_class
firmware-guide Documentation: ACPI: Fix parent device references 2025-08-28 16:24:15 +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 kconfig: add warn-unknown-symbols sanity check 2025-03-13 12:50:13 +01:00
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 kcsan, seqlock: Support seqcount_latch_t 2024-12-14 19:50:46 +01:00
m68k
maintainer
mhi
mips
misc-devices
netlabel
networking mptcp: disable add_addr retransmission when timeout is 0 2025-08-28 16:24:35 +02:00
nios2
nvdimm
openrisc
parisc
PCI pci-v5.15-changes 2021-09-07 19:13:42 -07:00
pcmcia
power Documentation: PM: Clarify pm_runtime_resume_and_get() return value 2024-12-19 18:07:21 +01:00
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: libsas: Delete lldd_clear_aca callback 2025-05-02 07:44:07 +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 sched/isolation: Prevent boot crash when the boot CPU is nohz_full 2025-04-10 14:31:48 +02:00
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
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
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 asm-generic: Add memory barrier dma_mb() 2025-08-28 16:24:36 +02:00
SubmittingPatches
watch_queue.rst