Palmer Dabbelt 52420e483d RISC-V: Provide the frequency of time CSR via hwprobe ... The RISC-V architecture makes a real time counter CSR (via RDTIME instruction) available for applications in U-mode but there is no architected mechanism for an application to discover the frequency the counter is running at. Some applications (e.g., DPDK) use the time counter for basic performance analysis as well as fine grained time-keeping. Add support to the hwprobe system call to export the time CSR frequency to code running in U-mode. Signed-off-by: Yunhui Cui <cuiyunhui@bytedance.com> Reviewed-by: Evan Green <evan@rivosinc.com> Reviewed-by: Anup Patel <anup@brainfault.org> Acked-by: Punit Agrawal <punit.agrawal@bytedance.com> Link: https://lore.kernel.org/r/20240702033731.71955-2-cuiyunhui@bytedance.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>		2024-07-26 05:50:51 -07:00
..
ABI	Char/Misc and other driver changes for 6.11-rc1	2024-07-19 15:55:08 -07:00
accel
accounting
admin-guide	- added support for Realtek RTL9302C	2024-07-20 09:03:36 -07:00
arch	RISC-V: Provide the frequency of time CSR via hwprobe	2024-07-26 05:50:51 -07:00
block	block: fix spelling and grammar for in writeback_cache_control.rst	2024-06-20 06:53:14 -06:00
bpf	bpf, docs: Address comments from IETF Area Directors	2024-06-23 09:10:26 -07:00
cdrom
core-api	Nothing hugely exciting happening in the documentation tree this time	2024-07-18 15:54:16 -07:00
cpu-freq
crypto
dev-tools	Nothing hugely exciting happening in the documentation tree this time	2024-07-18 15:54:16 -07:00
devicetree	RISC-V Patches for the 6.11 Merge Window, Part 1	2024-07-20 09:11:27 -07:00
doc-guide
driver-api	Char/Misc and other driver changes for 6.11-rc1	2024-07-19 15:55:08 -07:00
fault-injection
fb
features
filesystems	gfs2 fixes and cleanups	2024-07-17 12:23:33 -07:00
firmware_class
firmware-guide
fpga
gpu	Documentation/amdgpu: Clarify MI200 and MI300 entries	2024-07-08 16:56:20 -04:00
hid	HID: bpf: allow hid_device_event hooks to inject input reports on self	2024-06-27 11:00:48 +02:00
hwmon	hwmon updates for v6.11-rc1	2024-07-15 17:39:13 -07:00
i2c	This release includes significant updates, with the primary	2024-07-13 11:10:54 +02:00
iio	Documentation: iio: Document high-speed DMABUF based API	2024-06-30 11:30:18 +01:00
images
infiniband
input
isdn
kbuild	kbuild: doc: Update default INSTALL_MOD_DIR from extra to updates	2024-06-26 00:18:57 +09:00
kernel-hacking
leds	docs: leds: leds-blinkm.rst: Fix 'dasy-chain' typo	2024-06-21 11:57:10 +01:00
litmus-tests
livepatch
locking
maintainer	docs: maintainer: discourage taking conversations off-list	2024-07-16 11:08:26 -06:00
mhi
misc-devices	misc: mrvl-cn10k-dpi: add Octeon CN10K DPI administrative driver	2024-07-10 14:58:29 +02:00
mm	Docs/mm/index: move allocation profiling document to unsorted documents chapter	2024-07-03 16:19:15 -06:00
netlabel
netlink	NFSD 6.11 Release Notes	2024-07-17 12:00:49 -07:00
networking	Devicetree updates for v6.11:	2024-07-17 18:07:31 -07:00
nvdimm
nvme
PCI	Merge branch 'pci/misc'	2024-07-19 10:10:33 -05:00
pcmcia
peci
power	regulator: core: Add helper for allow HW access to enable/disable regulator	2024-06-26 18:17:05 +01:00
process	Nothing hugely exciting happening in the documentation tree this time	2024-07-18 15:54:16 -07:00
RCU	Merge branches 'doc.2024.06.06a', 'fixes.2024.07.04a', 'mb.2024.06.28a', 'nocb.2024.06.03a', 'rcu-tasks.2024.06.06a', 'rcutorture.2024.06.06a' and 'srcu.2024.06.18a' into HEAD	2024-07-04 13:54:17 -07:00
rust
scheduler	docs/sp_SP: Add translation for scheduler/sched-design-CFS.rst	2024-07-09 09:14:33 -06:00
scsi
security
sound
sphinx
sphinx-static
spi
staging	Docs: Move magic-number from process to staging	2024-06-26 16:36:00 -06:00
target
tee
timers
tools	Documentation/tools/rv: fix document header	2024-07-03 16:36:21 -06:00
trace	ftrace: Rewrite of function graph tracer	2024-07-18 13:36:33 -07:00
translations	pci-v6.11-changes	2024-07-19 19:03:18 -07:00
usb
userspace-api	Char/Misc and other driver changes for 6.11-rc1	2024-07-19 15:55:08 -07:00
virt	powerpc updates for 6.11	2024-07-19 21:00:33 -07:00
w1
watchdog
wmi
.gitignore
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py
docutils.conf
dontdiff
index.rst
Kconfig
Makefile
memory-barriers.txt
SubmittingPatches
subsystem-apis.rst