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Joey Gouly a7cd57c878 UPSTREAM: arm64: cpufeature: add HWCAP for FEAT_RPRES 
commit 1175011a7d upstream.

Add a new HWCAP to detect the Increased precision of Reciprocal Estimate
and Reciprocal Square Root Estimate feature (FEAT_RPRES), introduced in Armv8.7.

Also expose this to userspace in the ID_AA64ISAR2_EL1 feature register.

Bug: 215557547
Signed-off-by: Joey Gouly <joey.gouly@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Acked-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211210165432.8106-4-joey.gouly@arm.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I51e6c854cc1d319ccf6f11966e1c014ae82cb4cf
2022-03-17 16:51:49 +01:00
..
ABI
Merge 5.10.94 into android13-5.10
2022-01-29 09:07:58 +01:00
accounting
psi: Fix uaf issue when psi trigger is destroyed while being polled
2022-02-05 12:37:55 +01:00
admin-guide
Merge d04937ae94 ("x86/speculation: Warn about eIBRS + LFENCE + Unprivileged eBPF + SMT") into android13-5.10
2022-03-16 13:24:43 +01:00
arm
ARM: 9012/1: move device tree mapping out of linear region
2021-05-19 10:13:18 +02:00
arm64
UPSTREAM: arm64: cpufeature: add HWCAP for FEAT_RPRES
2022-03-17 16:51:49 +01:00
block
Merge remote-tracking branch 'aosp/upstream-f2fs-stable-linux-5.10.y' into android13-5.10
2021-11-19 12:03:23 -08:00
bpf
bpf: Migrate from patchwork.ozlabs.org to patchwork.kernel.org.
2020-10-11 22:05:47 +02:00
cdrom
Merge tag 'docs-5.9-2' of git://git.lwn.net/linux
2020-08-13 13:57:45 -07:00
core-api
dma-mapping: document dma_{alloc,free}_pages
2020-10-23 12:07:46 +02:00
cpu-freq
…
crypto
UPSTREAM: crypto: remove cipher routines from public crypto API
2021-05-13 07:53:31 +00:00
dev-tools
FROMGIT: kasan: documentation updates
2022-02-15 17:55:27 +01:00
device-mapper
…
devicetree
Merge 5.10.101 into android13-5.10
2022-02-16 15:14:37 +01:00
doc-guide
docs: kerneldoc.py: add support for kerneldoc -nosymbol
2020-10-15 07:49:38 +02:00
driver-api
Documentation: fix firewire.rst ABI file path error
2022-01-27 10:54:29 +01:00
fault-injection
lkdtm: replace SCSI_DISPATCH_CMD with SCSI_QUEUE_RQ
2021-09-15 09:50:42 +02:00
fb
Merge tag 'drm-next-2020-10-23' of git://anongit.freedesktop.org/drm/drm
2020-10-23 13:56:34 -07:00
features
Merge tag 's390-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
2020-10-16 12:36:38 -07:00
filesystems
ANDROID: Incremental-fs: Doc: correct a sysfs path in incfs.rst
2022-01-26 11:20:23 +00:00
firmware_class
…
firmware-guide
Documentation: ACPI: Fix data node reference documentation
2022-01-27 10:54:29 +01:00
fpga
Merge tag 'char-misc-5.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
2020-08-05 11:43:47 -07:00
gpu
Revert "fbcon: Disable accelerated scrolling"
2022-02-08 18:30:40 +01:00
hid
docs: hid: Convert link to https
2020-07-13 11:26:37 -06:00
hwmon
hwmon: (lm90) Add basic support for TI TMP461
2021-12-29 12:25:59 +01:00
i2c
Documentation: i2c: add testunit docs to index
2020-10-05 22:57:45 +02:00
ia64
docs/ia64: Drop obsolete Xen documentation
2020-08-31 16:16:03 -06:00
ide
…
iio
Documentation: iio: fix a typo
2020-09-09 11:41:20 -06:00
infiniband
RDMA/core: Remove FMR device ops
2020-06-02 20:32:54 -03:00
input
Input: uinput - fix typo in function name documentation
2020-07-28 18:24:11 -07:00
isdn
…
kbuild
FROMLIST: kbuild: Add environment variables for userprogs flags
2022-02-08 00:20:26 +00:00
kernel-hacking
…
leds
docs: leds: index.rst: add a missing file
2020-11-02 13:45:37 +01:00
litmus-tests
Documentation/litmus-tests: Add note on herd7 7.56 in atomic litmus test
2020-06-29 12:05:18 -07:00
livepatch
livepatch: Remove .klp.arch
2020-05-08 00:12:42 +02:00
locking
Documentation/locking/locktypes: Update migrate_disable() bits.
2021-12-14 11:32:42 +01:00
m68k
…
maintainer
Documentation/maintainer: rehome sign-off process
2020-09-03 15:39:24 -06:00
mhi
…
mips
dt: Remove booting-without-of.rst
2020-10-13 13:33:16 -05:00
misc-devices
Documentation: remove mic/index from misc-devices/index.rst
2020-11-04 11:38:32 +01:00
netlabel
…
networking
Merge 5.10.89 into android13-5.10
2021-12-29 13:24:39 +01:00
nios2
…
nvdimm
nvdimm: fixes to maintainter-entry-profile
2020-05-25 10:19:19 -06:00
openrisc
docs: openrisc: Replace HTTP links with HTTPS ones
2020-07-13 11:34:09 -06:00
parisc
…
PCI
Documentation: better locations for sysfs-pci, sysfs-tagging
2020-10-09 09:33:23 -06:00
pcmcia
…
power
UPSTREAM: Documentation/powercap/dtpm: Add documentation for dtpm
2021-03-11 16:02:39 +00:00
powerpc
powerpc/64s/syscall: Use pt_regs.trap to distinguish syscall ABI difference between sc and scv syscalls
2021-05-26 12:06:53 +02:00
process
docs: networking: drop special stable handling
2021-03-17 17:06:13 +01:00
RCU
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
2020-10-09 08:21:56 +02:00
riscv
…
s390
Merge tag 'docs-5.9' of git://git.lwn.net/linux
2020-08-04 22:47:54 -07:00
scheduler
Merge 50d228345a ("Merge tag 'docs-5.10' of git://git.lwn.net/linux") into android-mainline
2020-10-21 15:43:32 +02:00
scsi
scsi: libsas: Introduce a _gfp() variant of event notifiers
2021-03-25 09:04:11 +01:00
security
watch_queue: Drop references to /dev/watch_queue
2021-03-04 11:37:59 +01:00
sh
dt: Remove booting-without-of.rst
2020-10-13 13:33:16 -05:00
sound
ALSA: hda/realtek: Add new alc285-hp-amp-init model
2021-12-29 12:26:00 +01:00
sparc
…
sphinx
tweewide: Fix most Shebang lines
2021-05-22 11:40:55 +02:00
sphinx-static
…
spi
SPI SUBSYSTEM: Replace HTTP links with HTTPS ones
2020-07-09 22:41:11 +01:00
staging
Merge tag 'rproc-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
2020-08-11 11:17:45 -07:00
target
tweewide: Fix most Shebang lines
2021-05-22 11:40:55 +02:00
timers
docs: timers: drop documentation about LB_BIAS
2020-07-23 14:32:44 -06:00
trace
Merge 5.10.104 into android13-5.10
2022-03-15 13:57:31 +01:00
translations
net: switch to the kernel.org patchwork instance
2020-11-11 17:12:00 -08:00
usb
UPSTREAM: usb: gadget: u_audio: add real feedback implementation
2021-09-07 21:55:01 +00:00
userspace-api
Merge 5.10.50 into android13-5.10
2021-07-14 17:26:35 +02:00
virt
FROMLIST: BACKPORT: KVM: arm64: Indicate SYSTEM_RESET2 in kvm_run::system_event flags field
2022-02-21 15:51:07 +00:00
vm
Merge 5.10.50 into android13-5.10
2021-07-14 17:26:35 +02:00
w1
docs: w1: w1_therm: Fix broken xref, mistakes, clarify text
2020-10-08 09:47:15 +02:00
watchdog
watchdog: add support for adjusting last known HW keepalive time
2020-08-05 18:43:02 +02:00
x86
x86/CPU/AMD: Save AMD NodeId as cpu_die_id
2020-12-30 11:54:29 +01:00
xtensa
xtensa: fix TLBTEMP area placement
2020-11-16 02:13:15 -08:00
.gitignore
…
asm-annotations.rst
x86/entry: Emit a symbol for register restoring thunk
2021-02-03 23:28:40 +01:00
atomic_bitops.txt
…
atomic_t.txt
Documentation/litmus-tests/atomic: Add a test for smp_mb__after_atomic()
2020-06-29 12:05:18 -07:00
Changes
…
CodingStyle
…
conf.py
Merge tag 'docs-5.10-warnings' of git://git.lwn.net/linux
2020-11-03 13:14:14 -08:00
COPYING-logo
Replace HTTP links with HTTPS ones: documentation
2020-06-08 09:30:19 -06:00
docutils.conf
…
dontdiff
kbuild: generate Module.symvers only when vmlinux exists
2021-05-19 10:12:59 +02:00
index.rst
docs: index.rst: Add watch_queue
2020-07-23 14:13:23 -06:00
Kconfig
docs: Kconfig/Makefile: add a check for broken ABI files
2020-10-30 13:08:07 +01:00
logo.gif
…
Makefile
Merge tag 'docs-5.10-3' of git://git.lwn.net/linux
2020-11-03 09:57:30 -08:00
memory-barriers.txt
docs/memory-barriers.txt: Fix references for DMA*.txt files
2020-08-31 16:14:44 -06:00
SubmittingPatches
…
watch_queue.rst
docs: watch_queue: fix some warnings
2020-09-10 10:48:56 -06:00