OpenCloudOS-Kernel/Documentation
Palmer Dabbelt 3aefb2ee5b
riscv: implement Zicbom-based CMO instructions + the t-head variant
This series is based on the alternatives changes done in my svpbmt
series and thus also depends on Atish's isa-extension parsing series.

It implements using the cache-management instructions from the  Zicbom-
extension to handle cache flush, etc actions on platforms needing them.

SoCs using cpu cores from T-Head like the Allwinne D1 implement a
different set of cache instructions. But while they are different,
instructions they provide the same functionality, so a variant can easly
hook into the existing alternatives mechanism on those.

[Palmer:  Some minor fixups, including a RISCV_ISA_ZICBOM dependency on
MMU that's probably not strictly necessary.  The Zicbom support will
trip up sparse for users that have new toolchains, I just sent a patch.]

Link: https://lore.kernel.org/all/20220706231536.2041855-1-heiko@sntech.de/
Link: https://lore.kernel.org/linux-sparse/20220811033138.20676-1-palmer@rivosinc.com/T/#u

* palmer/riscv-zicbom:
  riscv: implement cache-management errata for T-Head SoCs
  riscv: Add support for non-coherent devices using zicbom extension
  dt-bindings: riscv: document cbom-block-size
  of: also handle dma-noncoherent in of_dma_is_coherent()
2022-08-10 20:49:32 -07:00
..
ABI - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
PCI
RCU
accounting
admin-guide dma-mapping updates 2022-08-06 10:56:45 -07:00
arc
arm SPDX changes for 6.0-rc1 2022-08-04 12:12:54 -07:00
arm64
block
bpf
cdrom
core-api dma-mapping updates 2022-08-06 10:56:45 -07:00
cpu-freq
crypto
dev-tools - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
devicetree riscv: implement Zicbom-based CMO instructions + the t-head variant 2022-08-10 20:49:32 -07:00
doc-guide
driver-api VFIO updates for v6.0-rc1 2022-08-06 08:59:35 -07:00
fault-injection
fb
features Xtensa updates for v5.20 2022-08-04 15:35:58 -07:00
filesystems - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
firmware-guide
firmware_class
fpga
gpu
hid
hwmon
i2c
ia64
iio
images
infiniband
input
isdn
kbuild
kernel-hacking
leds
litmus-tests
livepatch
locking
loongarch
m68k
maintainer
mhi
mips
misc-devices
mm - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
netlabel
networking
nios2
nvdimm
openrisc
parisc
pcmcia
peci
power
powerpc
process sound updates for 6.0-rc1 2022-08-06 10:19:51 -07:00
riscv
s390
scheduler
scsi SCSI misc on 20220804 2022-08-04 19:47:37 -07:00
security
sh
sound
sparc
sphinx
sphinx-static
spi
staging
target
timers
tools
trace Tracing updates for 5.20 / 6.0 2022-08-05 09:41:12 -07:00
translations - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
usb
userspace-api SCSI misc on 20220804 2022-08-04 19:47:37 -07:00
virt ARM: 2022-08-04 14:59:54 -07:00
w1
watchdog
x86 dma-mapping updates 2022-08-06 10:56:45 -07:00
xtensa
.gitignore
Changes
CodingStyle
Kconfig
Makefile
SubmittingPatches
arch.rst
asm-annotations.rst
atomic_bitops.txt
atomic_t.txt
conf.py
docutils.conf
dontdiff
index.rst
memory-barriers.txt