Introduce a new type for reserved region. This corresponds
to directly mapped regions which are known to be relaxable
in some specific conditions, such as device assignment use
case. Well known examples are those used by USB controllers
providing PS/2 keyboard emulation for pre-boot BIOS and
early BOOT or RMRRs associated to IGD working in legacy mode.
Since commit c875d2c1b8 ("iommu/vt-d: Exclude devices using RMRRs
from IOMMU API domains") and commit 18436afdc1 ("iommu/vt-d: Allow
RMRR on graphics devices too"), those regions are currently
considered "safe" with respect to device assignment use case
which requires a non direct mapping at IOMMU physical level
(RAM GPA -> HPA mapping).
Those RMRRs currently exist and sometimes the device is
attempting to access it but this has not been considered
an issue until now.
However at the moment, iommu_get_group_resv_regions() is
not able to make any difference between directly mapped
regions: those which must be absolutely enforced and those
like above ones which are known as relaxable.
This is a blocker for reporting severe conflicts between
non relaxable RMRRs (like MSI doorbells) and guest GPA space.
With this new reserved region type we will be able to use
iommu_get_group_resv_regions() to enumerate the IOVA space
that is usable through the IOMMU API without introducing
regressions with respect to existing device assignment
use cases (USB and IGD).
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
with DT bindings:
- leds-lm3697
- leds-lm36274
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Merge tag 'ti-lmu-led-drivers' into for-next
Merge immutable branch between LEDs, MFD and REGULATOR due to
TI LMU LED support rework and introduction of two new drivers
with DT bindings.
* tag 'ti-lmu-led-drivers':
leds: lm36274: Introduce the TI LM36274 LED driver
dt-bindings: leds: Add LED bindings for the LM36274
regulator: lm363x: Add support for LM36274
mfd: ti-lmu: Add LM36274 support to the ti-lmu
dt-bindings: mfd: Add lm36274 bindings to ti-lmu
leds: lm3697: Introduce the lm3697 driver
mfd: ti-lmu: Remove support for LM3697
dt-bindings: ti-lmu: Modify dt bindings for the LM3697
leds: TI LMU: Add common code for TI LMU devices
dt-bindings: mfd: LMU: Add ti,brightness-resolution
dt-bindings: mfd: LMU: Add the ramp up/down property
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Merge tag 'v5.2-rc4' into media/master
There are some conflicts due to SPDX changes. We also have more
patches being merged via media tree touching them.
So, let's merge back from upstream and address those.
Linux 5.2-rc4
* tag 'v5.2-rc4': (767 commits)
Linux 5.2-rc4
MAINTAINERS: Karthikeyan Ramasubramanian is MIA
i2c: xiic: Add max_read_len quirk
lockref: Limit number of cmpxchg loop retries
uaccess: add noop untagged_addr definition
x86/insn-eval: Fix use-after-free access to LDT entry
kbuild: use more portable 'command -v' for cc-cross-prefix
s390/unwind: correct stack switching during unwind
block, bfq: add weight symlink to the bfq.weight cgroup parameter
cgroup: let a symlink too be created with a cftype file
drm/nouveau/secboot/gp10[2467]: support newer FW to fix SEC2 failures on some boards
drm/nouveau/secboot: enable loading of versioned LS PMU/SEC2 ACR msgqueue FW
drm/nouveau/secboot: split out FW version-specific LS function pointers
drm/nouveau/secboot: pass max supported FW version to LS load funcs
drm/nouveau/core: support versioned firmware loading
drm/nouveau/core: pass subdev into nvkm_firmware_get, rather than device
block: free sched's request pool in blk_cleanup_queue
pktgen: do not sleep with the thread lock held.
net: mvpp2: Use strscpy to handle stat strings
net: rds: fix memory leak in rds_ib_flush_mr_pool
...
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add documentation for the meson vdec dts node.
Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add trigger type setting for csky,mpintc. The driver also could
support #interrupt-cells <1> and it wouldn't invalidate existing
DTs. Here we only show the complete format.
Signed-off-by: Guo Ren <ren_guo@c-sky.com>
Reviewed-by: Rob Herring <robh+dt@kernel.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Update the dt-binding document to support new compatible string for the
GPIO interrupt controller which found in Amlogic's Meson-G12A SoC.
Signed-off-by: Xingyu Chen <xingyu.chen@amlogic.com>
Signed-off-by: Jianxin Pan <jianxin.pan@amlogic.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Instead of keeping the documentation inside s390dbf.rst,
move them to arch/s390/include/asm/debug.h, using standard
kernel-doc markups.
Keeping the documentation close to the code helps to keep it
updated. It also makes easier to document other stuff inside
debug.h, as all it needs is to add kernel-doc markups inside
it, as the file will be already be included at the produced
documentation.
-
Those were converted to kerneldoc using this script specially
designed to parse ths file, and manually editted:
<script>
use strict;
my $mode = "";
my $parameter = "";
my $ret = "";
my $descr = "";
sub add_var($)
{
my $ln = shift;
$ln =~ s/^\s+//;
$ln =~ s/\s+$//;
return if ($ln eq "");
$ln =~ s/^(\S+)\s+/$1\t/;
print " * \@$ln\n";
}
sub add_return($)
{
my $ln = shift;
print " *\n * Return:\n" if ($mode ne "Return Value:");
$ln =~ s/^\s+//;
$ln =~ s/\s+$//;
return if ($ln eq "");
print " * - $ln\n";
}
sub add_description($)
{
my $ln = shift;
print " *\n * \n" if ($mode ne "Description:");
$ln =~ s/^\s+//;
$ln =~ s/\s+$//;
return if ($ln eq "");
print " * $ln\n";
}
sub flush_results()
{
print " */\n\n";
}
while (<>) {
if (m/^[\-]+$/) {
flush_results();
$mode = "";
$parameter = "";
$ret = "";
$descr = "";
next;
}
if (m/(Parameter:)(.*)/) {
print " *\n" if ($mode eq "func");
add_var($2);
$mode = $1;
next;
}
if (m/(Return Value:)(.*)/) {
add_return($2);
$mode = $1;
next;
}
if (m/(Description:)(.*)/) {
add_description($2);
$mode = $1;
next;
}
if ($mode eq "Parameter:") {
add_var($_);
next;
}
if ($mode eq "Return Value:") {
add_return($_);
next;
}
if ($mode eq "Description:") {
add_description($_);
next;
}
next if (m/^\s*$/);
if (m/^\S+.*\s\*?(\S+)\s*\(/) {
if ($mode eq "") {
print "/**\n * $1()\n";
} else {
print " * $1()\n";
}
$mode="func";
}
}
flush_results();
</script>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Convert all text files with s390 documentation to ReST format.
Tried to preserve as much as possible the original document
format. Still, some of the files required some work in order
for it to be visible on both plain text and after converted
to html.
The conversion is actually:
- add blank lines and identation in order to identify paragraphs;
- fix tables markups;
- add some lists markups;
- mark literal blocks;
- adjust title markups.
At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
The first bit/value table inside the document is very
hard to read and won't fit ReST format. Also, some columns aren't
properly aligned.
Convert it to a nice ascii artwork table with makes it easier to
read as plain text and is compatible with ReST format parser
on Sphinx.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
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Merge tag 'linux-can-fixes-for-5.2-20190607' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can
Marc Kleine-Budde says:
====================
pull-request: can 2019-06-07
this is a pull reqeust of 9 patches for net/master.
The first patch is by Alexander Dahl and removes a duplicate menu entry from
the Kconfig. The next patch by Joakim Zhang fixes the timeout in the flexcan
driver when setting small bit rates. Anssi Hannula's patch for the xilinx_can
driver fixes the bittiming_const for CAN FD core. The two patches by Sean
Nyekjaer bring mcp25625 to the existing mcp251x driver. The patch by Eugen
Hristev implements an errata for the m_can driver. YueHaibing's patch fixes the
error handling ing can_init(). The patch by Fabio Estevam for the flexcan
driver removes an unneeded registration message during flexcan_probe(). And the
last patch is by Willem de Bruijn and adds the missing purging the socket
error queue on sock destruct.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The patch adds k3 am654 compatible, specific properties and
an example.
Signed-off-by: Keerthy <j-keerthy@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Daniel Borkmann says:
====================
pull-request: bpf 2019-06-07
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix several bugs in riscv64 JIT code emission which forgot to clear high
32-bits for alu32 ops, from Björn and Luke with selftests covering all
relevant BPF alu ops from Björn and Jiong.
2) Two fixes for UDP BPF reuseport that avoid calling the program in case of
__udp6_lib_err and UDP GRO which broke reuseport_select_sock() assumption
that skb->data is pointing to transport header, from Martin.
3) Two fixes for BPF sockmap: a use-after-free from sleep in psock's backlog
workqueue, and a missing restore of sk_write_space when psock gets dropped,
from Jakub and John.
4) Fix unconnected UDP sendmsg hook API which is insufficient as-is since it
breaks standard applications like DNS if reverse NAT is not performed upon
receive, from Daniel.
5) Fix an out-of-bounds read in __bpf_skc_lookup which in case of AF_INET6
fails to verify that the length of the tuple is long enough, from Lorenz.
6) Fix libbpf's libbpf__probe_raw_btf to return an fd instead of 0/1 (for
{un,}successful probe) as that is expected to be propagated as an fd to
load_sk_storage_btf() and thus closing the wrong descriptor otherwise,
from Michal.
7) Fix bpftool's JSON output for the case when a lookup fails, from Krzesimir.
8) Minor misc fixes in docs, samples and selftests, from various others.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Fully compatible with mcp2515, the mcp25625 have integrated transceiver.
This patch add the mcp25625 to the device tree bindings documentation.
Signed-off-by: Sean Nyekjaer <sean@geanix.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
With ReST, [foo]_ means a reference to foo, causing this warning:
Documentation/driver-api/gpio/driver.rst:419: WARNING: Unknown target name: "devm".
Fix it by using a literal for the name.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Some new files got converted to yaml, but references weren't
updated accordingly.
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Add the LM36274 LED specific bindings.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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Merge tag 'ovl-fixes-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi:
"Here's one fix for a class of bugs triggered by syzcaller, and one
that makes xfstests fail less"
* tag 'ovl-fixes-5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: doc: add non-standard corner cases
ovl: detect overlapping layers
ovl: support the FS_IOC_FS[SG]ETXATTR ioctls
Add the LM36274 backlight driver with regulator support.
This is a multi-function device for backlight applications.
Backlight properties will be documented in it's a supplemental
bindings document.
Regulator support is documented in the regulator/lm363x-regulator.txt
http://www.ti.com/lit/ds/symlink/lm36274.pdf
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Use hverkuil-cisco@xs4all.nl instead of hans.verkuil@cisco.com.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This changes v4l2_pix_format and v4l2_plane_pix_format sizeimage
field description to allow v4l clients to set bigger image size
in case of variable length compressed data.
Presently s5p-mfc and mtk-vcodec codec drivers use that. Lets
make it obvious in the documentation.
Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Fix minor typos in the DVB demux documentation.
Signed-off-by: Marc Gonzalez <marc.w.gonzalez@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
This patch adds documentation for Device-Tree bindings for the
Socionext Synquacer spi driver.
Signed-off-by: Masahisa Kojima <masahisa.kojima@linaro.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Commit 8df39e1687 ("media: dt-bindings: media: Add vendor prefix for
allegro") introduced a new devicetree binding vendors, however with an
improper syntax making the resulting YAML impossible to parse. Let's fix
this.
Fixes: 8df39e1687 ("media: dt-bindings: media: Add vendor prefix for allegro")
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Clarify that pure non-RMW usage of atomic_t is pointless, there is
nothing 'magical' about atomic_set() / atomic_read().
This is something that seems to confuse people, because I happen upon it
semi-regularly.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190524115231.GN2623@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
More words are added to lockdep design document regarding key concepts,
which should help people without lockdep experience read and understand
lockdep reports.
Signed-off-by: Yuyang Du <duyuyang@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bvanassche@acm.org
Cc: frederic@kernel.org
Cc: ming.lei@redhat.com
Cc: will.deacon@arm.com
Link: https://lkml.kernel.org/r/20190506081939.74287-3-duyuyang@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
memory.stat and other files already consider subtrees in their output, and
we should too in order to not present an inconsistent interface.
The current situation is fairly confusing, because people interacting with
cgroups expect hierarchical behaviour in the vein of memory.stat,
cgroup.events, and other files. For example, this causes confusion when
debugging reclaim events under low, as currently these always read "0" at
non-leaf memcg nodes, which frequently causes people to misdiagnose breach
behaviour. The same confusion applies to other counters in this file when
debugging issues.
Aggregation is done at write time instead of at read-time since these
counters aren't hot (unlike memory.stat which is per-page, so it does it
at read time), and it makes sense to bundle this with the file
notifications.
After this patch, events are propagated up the hierarchy:
[root@ktst ~]# cat /sys/fs/cgroup/system.slice/memory.events
low 0
high 0
max 0
oom 0
oom_kill 0
[root@ktst ~]# systemd-run -p MemoryMax=1 true
Running as unit: run-r251162a189fb4562b9dabfdc9b0422f5.service
[root@ktst ~]# cat /sys/fs/cgroup/system.slice/memory.events
low 0
high 0
max 7
oom 1
oom_kill 1
As this is a change in behaviour, this can be reverted to the old
behaviour by mounting with the `memory_localevents' flag set. However, we
use the new behaviour by default as there's a lack of evidence that there
are any current users of memory.events that would find this change
undesirable.
akpm: this is a behaviour change, so Cc:stable. THis is so that
forthcoming distros which use cgroup v2 are more likely to pick up the
revised behaviour.
Link: http://lkml.kernel.org/r/20190208224419.GA24772@chrisdown.name
Signed-off-by: Chris Down <chris@chrisdown.name>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix Sphinx warnings in Documentation/vm/hmm.rst by using "::" notation and
inserting a blank line. Also add a missing ';'.
Documentation/vm/hmm.rst:292: WARNING: Unexpected indentation.
Documentation/vm/hmm.rst:300: WARNING: Unexpected indentation.
Link: http://lkml.kernel.org/r/c5995359-7c82-4e47-c7be-b58a4dda0953@infradead.org
Fixes: 023a019a9b ("mm/hmm: add default fault flags to avoid the need to pre-fill pfns arrays")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
cgroup already uses floating point for percent[ile] numbers and there
are several controllers which want to take them as input. Add a
generic parse helper to handle inputs.
Update the interface convention documentation about the use of
percentage numbers. While at it, also clarify the default time unit.
Signed-off-by: Tejun Heo <tj@kernel.org>
Here are some tiny USB fixes for a number of reported issues for
5.2-rc3.
Nothing huge here, just a small collection of xhci and other driver bugs
that syzbot has been finding in some drivers. There is also a usbip fix
and a fix for the usbip fix in here :)
All have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-5.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are some tiny USB fixes for a number of reported issues for
5.2-rc3.
Nothing huge here, just a small collection of xhci and other driver
bugs that syzbot has been finding in some drivers. There is also a
usbip fix and a fix for the usbip fix in here :)
All have been in linux-next with no reported issues"
* tag 'usb-5.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usbip: usbip_host: fix stub_dev lock context imbalance regression
media: smsusb: better handle optional alignment
xhci: Use %zu for printing size_t type
xhci: Convert xhci_handshake() to use readl_poll_timeout_atomic()
xhci: Fix immediate data transfer if buffer is already DMA mapped
usb: xhci: avoid null pointer deref when bos field is NULL
usb: xhci: Fix a potential null pointer dereference in xhci_debugfs_create_endpoint()
xhci: update bounce buffer with correct sg num
media: usb: siano: Fix false-positive "uninitialized variable" warning
USB: rio500: update Documentation
USB: rio500: simplify locking
USB: rio500: fix memory leak in close after disconnect
USB: rio500: refuse more than one device at a time
usbip: usbip_host: fix BUG: sleeping function called from invalid context
USB: sisusbvga: fix oops in error path of sisusb_probe
USB: Add LPM quirk for Surface Dock GigE adapter
media: usb: siano: Fix general protection fault in smsusb
usb: mtu3: fix up undefined reference to usb_debug_root
USB: Fix slab-out-of-bounds write in usb_get_bos_descriptor
Pull networking fixes from David Miller:
1) Fix OOPS during nf_tables rule dump, from Florian Westphal.
2) Use after free in ip_vs_in, from Yue Haibing.
3) Fix various kTLS bugs (NULL deref during device removal resync,
netdev notification ignoring, etc.) From Jakub Kicinski.
4) Fix ipv6 redirects with VRF, from David Ahern.
5) Memory leak fix in igmpv3_del_delrec(), from Eric Dumazet.
6) Missing memory allocation failure check in ip6_ra_control(), from
Gen Zhang. And likewise fix ip_ra_control().
7) TX clean budget logic error in aquantia, from Igor Russkikh.
8) SKB leak in llc_build_and_send_ui_pkt(), from Eric Dumazet.
9) Double frees in mlx5, from Parav Pandit.
10) Fix lost MAC address in r8169 during PCI D3, from Heiner Kallweit.
11) Fix botched register access in mvpp2, from Antoine Tenart.
12) Use after free in napi_gro_frags(), from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (89 commits)
net: correct zerocopy refcnt with udp MSG_MORE
ethtool: Check for vlan etype or vlan tci when parsing flow_rule
net: don't clear sock->sk early to avoid trouble in strparser
net-gro: fix use-after-free read in napi_gro_frags()
net: dsa: tag_8021q: Create a stable binary format
net: dsa: tag_8021q: Change order of rx_vid setup
net: mvpp2: fix bad MVPP2_TXQ_SCHED_TOKEN_CNTR_REG queue value
ipv4: tcp_input: fix stack out of bounds when parsing TCP options.
mlxsw: spectrum: Prevent force of 56G
mlxsw: spectrum_acl: Avoid warning after identical rules insertion
net: dsa: mv88e6xxx: fix handling of upper half of STATS_TYPE_PORT
r8169: fix MAC address being lost in PCI D3
net: core: support XDP generic on stacked devices.
netvsc: unshare skb in VF rx handler
udp: Avoid post-GRO UDP checksum recalculation
net: phy: dp83867: Set up RGMII TX delay
net: phy: dp83867: do not call config_init twice
net: phy: dp83867: increase SGMII autoneg timer duration
net: phy: dp83867: fix speed 10 in sgmii mode
net: phy: marvell10g: report if the PHY fails to boot firmware
...
Add a keyctl to atomically move a link to a key from one keyring to
another. The key must exist in "from" keyring and a flag can be given to
cause the operation to fail if there's a matching key already in the "to"
keyring.
This can be done with:
keyctl(KEYCTL_MOVE,
key_serial_t key,
key_serial_t from_keyring,
key_serial_t to_keyring,
unsigned int flags);
The key being moved must grant Link permission and both keyrings must grant
Write permission.
flags should be 0 or KEYCTL_MOVE_EXCL, with the latter preventing
displacement of a matching key from the "to" keyring.
Signed-off-by: David Howells <dhowells@redhat.com>
Add another example to clarify that HugePages smaller than 1MB will
be displayed using "KB", with an uppercased K (eg. 20KB), and not the
normal SI prefix kilo (small k).
Because of a misunderstanding/copy-paste error inside runc
(see https://github.com/opencontainers/runc/pull/2065), it tried
accessing the cgroup control file of a 64kB HugePage using
"hugetlb.64kB._____" instead of the correct "hugetlb.64KB._____".
Adding a new example will make it clear how sizes smaller than 1MB are
handled.
Signed-off-by: Odin Ugedal <odin@ugedal.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Move the binding for the discrete Atmel I2C Elliptic Curve h/w crypto
module to trivial-devices.yaml, as it doesn't belong in atmel-crypto
which describes unrelated on-SoC peripherals.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Add a compatible string for the Atmel SHA204A I2C crypto processor.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Remove the unnecessary constant CRYPTO_ALG_TYPE_DIGEST, which has the
same value as CRYPTO_ALG_TYPE_HASH.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
our extensions and, thus, the documentation build in general. Who knew
that those deprecation warnings it was outputting actually meant we should
change something? This set of fixes makes the build work again with
Sphinx 2.0 and eliminates the warnings for 1.8. As part of that, we also
need a few fixes to the docs for places where the new Sphinx is more
strict.
It is a bit late in the cycle for this kind of change, but it does fix
problems that people are experiencing now.
There has been some talk of raising the minimum version of Sphinx we
support. I don't want to do that abruptly, though, so these changes add
some glue to continue to support versions back to 1.3. We will be adding
some infrastructure soon to nudge users of old versions forward, with the
idea of maybe increasing our minimum version (and removing this glue)
sometime in the future.
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Merge tag 'docs-5.2-fixes2' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"The Sphinx 2.0 release contained a few incompatible API changes that
broke our extensions and, thus, the documentation build in general.
Who knew that those deprecation warnings it was outputting actually
meant we should change something? This set of fixes makes the build
work again with Sphinx 2.0 and eliminates the warnings for 1.8. As
part of that, we also need a few fixes to the docs for places where
the new Sphinx is more strict.
It is a bit late in the cycle for this kind of change, but it does fix
problems that people are experiencing now.
There has been some talk of raising the minimum version of Sphinx we
support. I don't want to do that abruptly, though, so these changes
add some glue to continue to support versions back to 1.3. We will be
adding some infrastructure soon to nudge users of old versions
forward, with the idea of maybe increasing our minimum version (and
removing this glue) sometime in the future"
* tag 'docs-5.2-fixes2' of git://git.lwn.net/linux:
drm/i915: Maintain consistent documentation subsection ordering
scripts/sphinx-pre-install: make it handle Sphinx versions
docs: Fix conf.py for Sphinx 2.0
docs: fix multiple doc build warnings in enumeration.rst
lib/list_sort: fix kerneldoc build error
docs: fix numaperf.rst and add it to the doc tree
doc: Cope with the deprecation of AutoReporter
doc: Cope with Sphinx logging deprecations
The A83T SoC has a camera sensor interface (known as CSI in Allwinner
lingo), which is similar to the one found on the A64 and H3. The only
difference seems to be that support of MIPI CSI through a connected
MIPI CSI-2 bridge.
Add a compatible string for this variant.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The reserved field array for struct media_link_desc has length 2, not 4.
And the reserved field array of struct media_links_enum was never documented
at all.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add vendor prefix for Allegro DVT, a provider of H.264/AVC, H.265/HEVC,
AVS2, VP9 and AV1 compliance test suites and H.264/AVC, H.265/HEVC, and
VP9 encoder, codec and decoder hardware (RTL) IPs.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add device-tree bindings for the Allegro DVT video IP core found on the
Xilinx ZynqMP EV family.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
The H264_SLICE_RAW format introduced before is meant for stateless
decoders that will need the H264 parsed slice data without the start code.
Let's document it.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Stateless video codecs will require both the H264 metadata and slices in
order to be able to decode frames.
This introduces the definitions for the structures used to pass the
metadata from the userspace to the kernel.
[hverkuil-cisco@xs4all.nl: add space after . in ".For"]
[hverkuil-cisco@xs4all.nl: sync v4l2_ctrl_h264_decode_params struct layout with header]
Co-developed-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Pawel Osciak <posciak@chromium.org>
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add MPEG-2 CID definitions for profiles and levels defined in ITU-T Rec.
H.262.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Add DT bindings for the Renesas RZ/A1 Interrupt Controller.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Both sysfs-bus-mdio and sysfs-class-net-phydev contain the same
duplication information. There is not currently any MDIO bus specific
attribute, but there are PHY device (struct phy_device) specific
attributes. Use the more precise description from sysfs-bus-mdio and
carry that over to sysfs-class-net-phydev.
Fixes: 86f22d04df ("net: sysfs: Document PHY device sysfs attributes")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a paragraph to make it more clear that video equipment will transmit
fields in the same order the fields were captured, and replace some of
the "is transmitted first" language with "is the older field", since the
latter is the important info for motion compensation applications.
Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
A positive value of rcupdate.rcu_task_stall_timeout is an interval
in seconds rather than jiffies.
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@oracle.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Document similar real world examples in the kernel corresponding to the
second and third code snippets. Also correct an issue in
release_referenced() in the code snippet example.
Cc: oleg@redhat.com
Cc: jannh@google.com
Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org>
[ paulmck: Do a bit of wordsmithing. ]
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
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Merge tag 'v5.2-rc2' into patchwork
Merge back from upstream into media tree, as there are some
patches merged upstream that has pontential of causing
conflicts (one actually rised a conflict already).
Linux 5.2-rc2
* tag 'v5.2-rc2': (377 commits)
Linux 5.2-rc2
random: fix soft lockup when trying to read from an uninitialized blocking pool
tracing: Silence GCC 9 array bounds warning
ext4: fix dcache lookup of !casefolded directories
locking/lock_events: Use this_cpu_add() when necessary
KVM: x86: fix return value for reserved EFER
tools/kvm_stat: fix fields filter for child events
KVM: selftests: Wrap vcpu_nested_state_get/set functions with x86 guard
kvm: selftests: aarch64: compile with warnings on
kvm: selftests: aarch64: fix default vm mode
kvm: selftests: aarch64: dirty_log_test: fix unaligned memslot size
KVM: s390: fix memory slot handling for KVM_SET_USER_MEMORY_REGION
KVM: x86/pmu: do not mask the value that is written to fixed PMUs
KVM: x86/pmu: mask the result of rdpmc according to the width of the counters
x86/kvm/pmu: Set AMD's virt PMU version to 1
KVM: x86: do not spam dmesg with VMCS/VMCB dumps
kvm: Check irqchip mode before assign irqfd
kvm: svm/avic: fix off-by-one in checking host APIC ID
KVM: selftests: do not blindly clobber registers in guest asm
KVM: selftests: Remove duplicated TEST_ASSERT in hyperv_cpuid.c
...
The A83t and compatibles controllers don't have any reception capabilities
on some instances of the controllers, even though it was never documented
as such in the binding before.
Therefore, on those controllers, we don't have the option to set an RX DMA
channel.
This was already done in the DTSI, but the binding itself was never
updated. Let's add a special case in the schemas.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
The Allwinner SoCs feature an I2S controller across multiple SoC
generations.
However, earlier generations were a bit simpler than the subsequent ones,
and for example would always have RX and TX capabilities, and no reset
lines.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Allwinner H6 has a SPDIF controller with an increase of the fifo
size and a sligher difference in memory mapping compare to H3/A64.
This make it not compatible with the previous generation.
Introduce a specific bindings for H6 SoC.
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Convert the Arm PL061 GPIO controller binding to json-schema format.
As I'm the author for all but the gpio-ranges line, make the schema dual
GPL/BSD license.
Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
The 'default (active high)' lines are repeated twice. Avoid people stare at
their screens looking for differences.
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Because this patch series dropped support for 10 bit I2C devices, I'm
documenting this.
Signed-off-by: Przemyslaw Gaj <pgaj@cadence.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Some workloads need to change kthread priority for RCU core processing
without affecting other softirq work. This commit therefore introduces
the rcutree.use_softirq kernel boot parameter, which moves the RCU core
work from softirq to a per-CPU SCHED_OTHER kthread named rcuc. Use of
SCHED_OTHER approach avoids the scalability problems that appeared
with the earlier attempt to move RCU core processing to from softirq
to kthreads. That said, kernels built with RCU_BOOST=y will run the
rcuc kthreads at the RCU-boosting priority.
Note that rcutree.use_softirq=0 must be specified to move RCU core
processing to the rcuc kthreads: rcutree.use_softirq=1 is the default.
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
[ paulmck: Adjust for invoke_rcu_callbacks() only ever being invoked
from RCU core processing, in contrast to softirq->rcuc transition
in old mainline RCU priority boosting. ]
[ paulmck: Avoid wakeups when scheduler might have invoked rcu_read_unlock()
while holding rq or pi locks, also possibly fixing a pre-existing latent
bug involving raise_softirq()-induced wakeups. ]
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
- Update checkpatch.pl to use DT vendor-prefixes.yaml
- Fix DT binding references to files converted to DT schema
- Clean-up Arm CPU binding examples to match schema
- Add Sifive block versioning scheme documentation
- Pass binding directory base to validation tools for reference lookups
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Merge tag 'devicetree-fixes-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull Devicetree fixes from Rob Herring:
- Update checkpatch.pl to use DT vendor-prefixes.yaml
- Fix DT binding references to files converted to DT schema
- Clean-up Arm CPU binding examples to match schema
- Add Sifive block versioning scheme documentation
- Pass binding directory base to validation tools for reference lookups
* tag 'devicetree-fixes-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
checkpatch.pl: Update DT vendor prefix check
dt: bindings: mtd: replace references to nand.txt with nand-controller.yaml
dt-bindings: interrupt-controller: arm,gic: Fix schema errors in example
dt-bindings: arm: Clean up CPU binding examples
dt: fix refs that were renamed to json with the same file name
dt-bindings: Pass binding directory to validation tools
dt-bindings: sifive: describe sifive-blocks versioning
The LM3697 is a single function LED driver. The single function LED
driver needs to reside in the LED directory as a dedicated LED driver
and not as a MFD device. The device does have common brightness and ramp
features and those can be accomodated by a TI LMU framework.
The LM3697 dt binding needs to be moved from the ti-lmu.txt and a dedicated
LED dt binding needs to be added. The new LM3697 LED dt binding will then
reside in the Documentation/devicetree/bindings/leds directory and follow the
current LED and general bindings guidelines.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
This patch adds the binding documentation for a simple SPI based LED
controller which use only one byte for setting the brightness.
Signed-off-by: Christian Mauderer <oss@c-mauderer.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
- Fix incorrect LDADD instruction encoding in our disassembly macros
- Disable the broken ARM64_PSEUDO_NMI support for now
- Add workaround for Cortex-A76 CPU erratum #1463225
- Handle Cortex-A76/Neoverse-N1 erratum #1418040 w/ existing workaround
- Fix IORT build failure if IOMMU_SUPPORT=n
- Fix place-relative module relocation range checking and its
interaction with KASLR
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull more arm64 fixes from Will Deacon:
- Fix incorrect LDADD instruction encoding in our disassembly macros
- Disable the broken ARM64_PSEUDO_NMI support for now
- Add workaround for Cortex-A76 CPU erratum #1463225
- Handle Cortex-A76/Neoverse-N1 erratum #1418040 w/ existing workaround
- Fix IORT build failure if IOMMU_SUPPORT=n
- Fix place-relative module relocation range checking and its
interaction with KASLR
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: insn: Add BUILD_BUG_ON() for invalid masks
arm64: insn: Fix ldadd instruction encoding
arm64: Kconfig: Make ARM64_PSEUDO_NMI depend on BROKEN for now
arm64: Handle erratum 1418040 as a superset of erratum 1188873
arm64/module: deal with ambiguity in PRELxx relocation ranges
ACPI/IORT: Fix build error when IOMMU_SUPPORT is disabled
arm64/kernel: kaslr: reduce module randomization range to 2 GB
arm64: errata: Add workaround for Cortex-A76 erratum #1463225
arm64: Remove useless message during oops
Our version check in Documentation/conf.py never envisioned a world where
Sphinx moved beyond 1.x. Now that the unthinkable has happened, fix our
version check to handle higher version numbers correctly.
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The conversion of acpi/enumeration.txt to RST included one markup error,
leading to many warnings like:
.../firmware-guide/acpi/enumeration.rst:430: WARNING: Unexpected indentation.
Add the missing colon and create some peace.
Fixes: c24bc66e81 ("Documentation: ACPI: move enumeration.txt to firmware-guide/acpi and convert to reST")
Cc: Changbin Du <changbin.du@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Commit 13bac55ef7 ("doc/mm: New documentation for memory performance")
added numaperf.rst, but did not add it to the TOC tree. There was also an
incorrectly marked literal block leading to this warning sequence:
numaperf.rst:24: WARNING: Unexpected indentation.
numaperf.rst:24: WARNING: Inline substitution_reference start-string without end-string.
numaperf.rst:25: WARNING: Block quote ends without a blank line; unexpected unindent.
Fix the block and add the file to the document tree.
Fixes: 13bac55ef7 ("doc/mm: New documentation for memory performance")
Cc: Keith Busch <keith.busch@intel.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
AutoReporter is going away; recent versions of sphinx emit a warning like:
Documentation/sphinx/kerneldoc.py:125:
RemovedInSphinx20Warning: AutodocReporter is now deprecated.
Use sphinx.util.docutils.switch_source_input() instead.
Make the switch. But switch_source_input() only showed up in 1.7, so we
have to do ugly version checks to keep things working in older versions.
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Recent versions of sphinx will emit messages like:
Documentation/sphinx/kerneldoc.py:103:
RemovedInSphinx20Warning: app.warning() is now deprecated.
Use sphinx.util.logging instead.
Switch to sphinx.util.logging to make this unsightly message go away.
Alas, that interface was only added in version 1.6, so we have to add a
version check to keep things working with older sphinxes.
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
spdxcheck.py script up with the current state of affairs.
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Merge tag 'docs-5.2-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"A handful of fixes for a docs build problem, along with catching the
spdxcheck.py script up with the current state of affairs"
* tag 'docs-5.2-fixes' of git://git.lwn.net/linux:
Documentation: kdump: fix minor typo
scripts/spdxcheck.py: Add dual license subdirectory
scripts/spdxcheck.py: Fix path to deprecated licenses
counter: fix Documentation build error due to incorrect source file name
We already mitigate erratum 1188873 affecting Cortex-A76 and
Neoverse-N1 r0p0 to r2p0. It turns out that revisions r0p0 to
r3p1 of the same cores are affected by erratum 1418040, which
has the same workaround as 1188873.
Let's expand the range of affected revisions to match 1418040,
and repaint all occurences of 1188873 to 1418040. Whilst we're
there, do a bit of reformating in silicon-errata.txt and drop
a now unnecessary dependency on ARM_ARCH_TIMER_OOL_WORKAROUND.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Convert the Arm pl022 binding to DT schema format. The clock binding was
missing, so it is added to the schema. It really should be required as
well, but there are some platforms (spear) not yet using DT clock
binding.
Cc: Mark Brown <broonie@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-spi@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Revisions of the Cortex-A76 CPU prior to r4p0 are affected by an erratum
that can prevent interrupts from being taken when single-stepping.
This patch implements a software workaround to prevent userspace from
effectively being able to disable interrupts.
Cc: <stable@vger.kernel.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Document which capability is required, rather than just saying
that "root permissions" are required.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Document this new cec_msg flag.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Create CPU topology sysfs attributes: "core_cpus" and "core_cpus_list"
These attributes represent all of the logical CPUs that share the
same core.
These attriutes is synonymous with the existing "thread_siblings" and
"thread_siblings_list" attribute, which will be deprecated.
Create CPU topology sysfs attributes: "die_cpus" and "die_cpus_list".
These attributes represent all of the logical CPUs that share the
same die.
Suggested-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/071c23a298cd27ede6ed0b6460cae190d193364f.1557769318.git.len.brown@intel.com
The existing sysfs cpu/topology/core_siblings (and core_siblings_list)
attributes are documented, implemented, and used by programs to represent
set of logical CPUs sharing the same package.
This makes sense if the next topology level above a core is always a
package. But on systems where there is a die topology level between a core
and a package, the name and its definition become inconsistent.
So without changing its function, add a name for this map that describes
what it actually is -- package CPUs -- the set of CPUs that share the same
package.
This new name will be immune to changes in topology, since it describes
threads at the current level, not siblings at a contained level.
Suggested-by: Brice Goglin <Brice.Goglin@inria.fr>
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/d9d3228b82fb5665e6f93a0ccd033fe022558521.1557769318.git.len.brown@intel.com
Some new systems have multiple software-visible die within each package.
Update Linux parsing of the Intel CPUID "Extended Topology Leaf" to handle
either CPUID.B, or the new CPUID.1F.
Add cpuinfo_x86.die_id and cpuinfo_x86.max_dies to store the result.
die_id will be non-zero only for multi-die/package systems.
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: linux-doc@vger.kernel.org
Link: https://lkml.kernel.org/r/7b23d2d26d717b8e14ba137c94b70943f1ae4b5c.1557769318.git.len.brown@intel.com
Describe existing kernel TLS offload (added back in Linux 4.19) -
the mechanism, the expected behavior and the notable corner cases.
This documentation is mostly targeting hardware vendors who want
to implement offload, to ensure consistency between implementations.
v2:
- add emphasis around TLS_SW/TLS_HW/TLS_HW_RECORD;
- remove mentions of ongoing work (Boris);
- split the flow of data in SW vs. HW cases in TX overview
(Boris);
- call out which fields are updated by the device and which
are filled by the stack (Boris);
- move error handling into it's own section (Boris);
- add more words about fallback (Boris);
- note that checksum validation is required (Alexei);
- note that drivers shouldn't pay attention to the TLS
device features.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Dave Watson <davejwatson@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Boris Pismenny <borisp@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Convert the TLS doc to RST. Use C code blocks for the code
samples, and mark hyperlinks.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Dave Watson <davejwatson@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Some of the device drivers have really long document titles
making the networking table of contents hard to look through.
Place vendor drivers under a submenu.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Dave Watson <davejwatson@fb.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
1) Clear up some recent tipc regressions because of registration
ordering. Fix from Junwei Hu.
2) tipc's TLV_SET() can read past the end of the supplied buffer during
the copy. From Chris Packham.
3) ptp example program doesn't match the kernel, from Richard Cochran.
4) Outgoing message type fix in qrtr, from Bjorn Andersson.
5) Flow control regression in stmmac, from Tan Tee Min.
6) Fix inband autonegotiation in phylink, from Russell King.
7) Fix sk_bound_dev_if handling in rawv6_bind(), from Mike Manning.
8) Fix usbnet crash after disconnect, from Kloetzke Jan.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (21 commits)
usbnet: fix kernel crash after disconnect
selftests: fib_rule_tests: use pre-defined DEV_ADDR
net-next: net: Fix typos in ip-sysctl.txt
ipv6: Consider sk_bound_dev_if when binding a raw socket to an address
net: phylink: ensure inband AN works correctly
usbnet: ipheth: fix racing condition
net: stmmac: dma channel control register need to be init first
net: stmmac: fix ethtool flow control not able to get/set
net: qrtr: Fix message type of outgoing packets
networking: : fix typos in code comments
ptp: Fix example program to match kernel.
fddi: fix typos in code comments
selftests: fib_rule_tests: enable forwarding before ipv4 from/iif test
selftests: fib_rule_tests: fix local IPv4 address typo
tipc: Avoid copying bytes beyond the supplied data
2/2] net: xilinx_emaclite: use readx_poll_timeout() in mdio wait function
1/2] net: axienet: use readx_poll_timeout() in mdio wait function
vlan: Mark expected switch fall-through
macvlan: Mark expected switch fall-through
net/mlx4_en: ethtool, Remove unsupported SFP EEPROM high pages query
...
nand-controller.yaml replaced nand.txt however the references to it were
not updated. This change updates these references wherever it appears in
bindings documentation.
Fixes: 212e496935 ("dt-bindings: mtd: Add YAML schemas for the generic NAND options")
Signed-off-by: Kamal Dasu <kdasu.kdev@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Validating the examples against the schema have a few errors:
arm,gic.example.dt.yaml: 'ranges' does not match any of the regexes: '^v2m@[0-9a-f]+$', 'pinctrl-[0-9]+'
arm,gic.example.dt.yaml: #address-cells:0:0: 2 is not one of [0, 1]
arm,gic.example.dt.yaml: #size-cells:0:0: 1 was expected
'ranges' is valid, but missing from the schema, so add it. The reg
addresses and sizes don't match the schema requirements and the example
template. We could just override the example template to use 64-bit
addresses, but there's not really any value showing that in the example.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Following commit 31af04cd60 ("arm64: dts: Remove inconsistent use of
'arm,armv8' compatible string"), clean up these binding examples in case
anyone is tempted to copy them.
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
These files were converted to json-schema, but the references weren't
renamed.
Fixes: 66ed144f14 ("dt-bindings: interrupt-controller: Convert ARM GIC to json-schema")
(and other similar commits)
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
In order to have $ref's to schema files within the kernel, we need to
pass the base path of bindings to the schema validation tools.
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Michal Marek <michal.lkml@markovi.net>
Cc: devicetree@vger.kernel.org
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
For IP blocks that are generated from the public, open-source
sifive-blocks repository, describe the version numbering policy
that its maintainers intend to use, upon request from Rob
Herring <robh@kernel.org>.
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Reviewed-by: Palmer Dabbelt <palmer@sifive.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Megan Wachs <megan@sifive.com>
Cc: Wesley Terpstra <wesley@sifive.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-riscv@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Convert the max8660 binding to DT schema format using json-schema.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Convert the gpio-regulator binding to DT schema format using
json-schema.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Convert the common regulator binding to DT schema format. Note that all
the properties with standard unit suffixes have type checks already, so
only a description is necessary.
As fixed-regulator has already been converted, update the references in
it. Otherwise, keep regulator.txt with a reference to the schema to
avoid a bunch of treewide updates. regulator.txt can be removed when all
the regulator bindings are converted.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Convert the spi-gpio binding to DT schema format.
Cc: Mark Brown <broonie@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-spi@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Switch the DT binding to a YAML schema to enable the DT validation.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Switch the DT binding to a YAML schema to enable the DT validation.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
The SPI controllers have a bunch of generic options that are needed in a
device tree. Add a YAML schemas for those.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
The Arizona regulator drivers are now also used by the Cirrus Logic
Madera audio CODECs, update the binding document to link to the primary
binding document for these as well as the existing Arizona document.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch fixes some spelling typos found in ip-sysctl.txt
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix Sphinx warnings in Documentation/networking/af_xdp.rst by
adding indentation:
Documentation/networking/af_xdp.rst:319: WARNING: Literal block expected; none found.
Documentation/networking/af_xdp.rst:326: WARNING: Literal block expected; none found.
Fixes: 0f4a9b7d4e ("xsk: add FAQ to facilitate for first time users")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Magnus Karlsson <magnus.karlsson@intel.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Added the newly added limit and updated the text a bit
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- remove unused cc-ldoption
- do not check the name uniquness of builtin modules to avoid
false positives
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Merge tag 'kbuild-fixes-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- remove unused cc-ldoption
- do not check the name uniquness of builtin modules to avoid false
positives
* tag 'kbuild-fixes-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: do not check name uniqueness of builtin modules
kbuild: drop support for cc-ldoption
Add ti,brightness-resolution to the TI LMU binding to define
whether the device uses 8-bit brightness or 11-bit brightness.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Document the ramp-up and ramp-down property in the binding.
Removing the "sec" from the property definition as seconds is
implied.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Pull networking fixes from David Miller:1) Use after free in __dev_map_entry_free(), from Eric Dumazet.
1) Use after free in __dev_map_entry_free(), from Eric Dumazet.
2) Fix TCP retransmission timestamps on passive Fast Open, from Yuchung
Cheng.
3) Orphan NFC, we'll take the patches directly into my tree. From
Johannes Berg.
4) We can't recycle cloned TCP skbs, from Eric Dumazet.
5) Some flow dissector bpf test fixes, from Stanislav Fomichev.
6) Fix RCU marking and warnings in rhashtable, from Herbert Xu.
7) Fix some potential fib6 leaks, from Eric Dumazet.
8) Fix a _decode_session4 uninitialized memory read bug fix that got
lost in a merge. From Florian Westphal.
9) Fix ipv6 source address routing wrt. exception route entries, from
Wei Wang.
10) The netdev_xmit_more() conversion was not done %100 properly in mlx5
driver, fix from Tariq Toukan.
11) Clean up botched merge on netfilter kselftest, from Florian
Westphal.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (74 commits)
of_net: fix of_get_mac_address retval if compiled without CONFIG_OF
net: fix kernel-doc warnings for socket.c
net: Treat sock->sk_drops as an unsigned int when printing
kselftests: netfilter: fix leftover net/net-next merge conflict
mlxsw: core: Prevent reading unsupported slave address from SFP EEPROM
mlxsw: core: Prevent QSFP module initialization for old hardware
vsock/virtio: Initialize core virtio vsock before registering the driver
net/mlx5e: Fix possible modify header actions memory leak
net/mlx5e: Fix no rewrite fields with the same match
net/mlx5e: Additional check for flow destination comparison
net/mlx5e: Add missing ethtool driver info for representors
net/mlx5e: Fix number of vports for ingress ACL configuration
net/mlx5e: Fix ethtool rxfh commands when CONFIG_MLX5_EN_RXNFC is disabled
net/mlx5e: Fix wrong xmit_more application
net/mlx5: Fix peer pf disable hca command
net/mlx5: E-Switch, Correct type to u16 for vport_num and int for vport_index
net/mlx5: Add meaningful return codes to status_to_err function
net/mlx5: Imply MLXFW in mlx5_core
Revert "tipc: fix modprobe tipc failed after switch order of device registration"
vsock/virtio: free packets during the socket release
...
If you want to see if your linker supports a certain flag, then ask the
linker directly with ld-option (not the compiler with cc-ldoption).
Checking for linker flag support is an antipattern that complicates the
usage of various linkers other than bfd via -fuse-ld={bfd|gold|lld}.
Cc: clang-built-linux@googlegroups.com
Suggested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
The interpretation of opp-supported-hw bits for imx-cpufreq-dt driver is
not very obvious so attempt to explain it.
There is no OF compat string associated.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Merge yet more updates from Andrew Morton:
"A few final bits:
- large changes to vmalloc, yielding large performance benefits
- tweak the console-flush-on-panic code
- a few fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
panic: add an option to replay all the printk message in buffer
initramfs: don't free a non-existent initrd
fs/writeback.c: use rcu_barrier() to wait for inflight wb switches going into workqueue when umount
mm/compaction.c: correct zone boundary handling when isolating pages from a pageblock
mm/vmap: add DEBUG_AUGMENT_LOWEST_MATCH_CHECK macro
mm/vmap: add DEBUG_AUGMENT_PROPAGATE_CHECK macro
mm/vmalloc.c: keep track of free blocks for vmap allocation
Pull i2c updates from Wolfram Sang:
"Some I2C core API additions which are kind of simple but enhance error
checking for users a lot, especially by returning errno now.
There are wrappers to still support the old API but it will be removed
once all users are converted"
* 'i2c/for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: core: add device-managed version of i2c_new_dummy
i2c: core: improve return value handling of i2c_new_device and i2c_new_dummy
Pull clocksource updates from Ingo Molnar:
"Misc clocksource/clockevent driver updates that came in a bit late but
are ready for v5.2"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
misc: atmel_tclib: Do not probe already used TCBs
clocksource/drivers/timer-atmel-tcb: Convert tc_clksrc_suspend|resume() to static
clocksource/drivers/tcb_clksrc: Rename the file for consistency
clocksource/drivers/timer-atmel-pit: Rework Kconfig option
clocksource/drivers/tcb_clksrc: Move Kconfig option
ARM: at91: Implement clocksource selection
clocksource/drivers/tcb_clksrc: Use tcb as sched_clock
clocksource/drivers/tcb_clksrc: Stop depending on atmel_tclib
ARM: at91: move SoC specific definitions to SoC folder
clocksource/drivers/timer-milbeaut: Cleanup common register accesses
clocksource/drivers/timer-milbeaut: Add shutdown function
clocksource/drivers/timer-milbeaut: Fix to enable one-shot timer
clocksource/drivers/tegra: Rework for compensation of suspend time
clocksource/drivers/sp804: Add COMPILE_TEST to CONFIG_ARM_TIMER_SP804
clocksource/drivers/sun4i: Add a compatible for suniv
dt-bindings: timer: Add Allwinner suniv timer
Pull IRQ chip updates from Ingo Molnar:
"A late irqchips update:
- New TI INTR/INTA set of drivers
- Rewrite of the stm32mp1-exti driver as a platform driver
- Update the IOMMU MSI mapping API to be RT friendly
- A number of cleanups and other low impact fixes"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
iommu/dma-iommu: Remove iommu_dma_map_msi_msg()
irqchip/gic-v3-mbi: Don't map the MSI page in mbi_compose_m{b, s}i_msg()
irqchip/ls-scfg-msi: Don't map the MSI page in ls_scfg_msi_compose_msg()
irqchip/gic-v3-its: Don't map the MSI page in its_irq_compose_msi_msg()
irqchip/gicv2m: Don't map the MSI page in gicv2m_compose_msi_msg()
iommu/dma-iommu: Split iommu_dma_map_msi_msg() in two parts
genirq/msi: Add a new field in msi_desc to store an IOMMU cookie
arm64: arch_k3: Enable interrupt controller drivers
irqchip/ti-sci-inta: Add msi domain support
soc: ti: Add MSI domain bus support for Interrupt Aggregator
irqchip/ti-sci-inta: Add support for Interrupt Aggregator driver
dt-bindings: irqchip: Introduce TISCI Interrupt Aggregator bindings
irqchip/ti-sci-intr: Add support for Interrupt Router driver
dt-bindings: irqchip: Introduce TISCI Interrupt router bindings
gpio: thunderx: Use the default parent apis for {request,release}_resources
genirq: Introduce irq_chip_{request,release}_resource_parent() apis
firmware: ti_sci: Add helper apis to manage resources
firmware: ti_sci: Add RM mapping table for am654
firmware: ti_sci: Add support for IRQ management
firmware: ti_sci: Add support for RM core ops
...
This is some material that we picked up into our tree late. Most of it
are smaller fixes and additions, some defconfig updates due to recent
development, etc.
Code-wise the largest portion is a series of PM updates for the at91
platform, and those have been in linux-next a while through the at91
tree before we picked them up.
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Merge tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC late updates from Olof Johansson:
"This is some material that we picked up into our tree late. Most of it
are smaller fixes and additions, some defconfig updates due to recent
development, etc.
Code-wise the largest portion is a series of PM updates for the at91
platform, and those have been in linux-next a while through the at91
tree before we picked them up"
* tag 'armsoc-late' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (29 commits)
arm64: dts: sprd: Add clock properties for serial devices
Opt out of scripts/get_maintainer.pl
ARM: ixp4xx: Remove duplicated include from common.c
soc: ixp4xx: qmgr: Fix an NULL vs IS_ERR() check in probe
arm64: tegra: Disable XUSB support on Jetson TX2
arm64: tegra: Enable SMMU translation for PCI on Tegra186
arm64: tegra: Fix insecure SMMU users for Tegra186
arm64: tegra: Select ARM_GIC_PM
amba: tegra-ahb: Mark PM functions as __maybe_unused
ARM: dts: logicpd-som-lv: Fix MMC1 card detect
ARM: mvebu: drop return from void function
ARM: mvebu: prefix coprocessor operand with p
ARM: mvebu: drop unnecessary label
ARM: mvebu: fix a leaked reference by adding missing of_node_put
ARM: socfpga_defconfig: enable LTC2497
ARM: mvebu: kirkwood: remove error message when retrieving mac address
ARM: at91: sama5: make ov2640 as a module
ARM: OMAP1: ams-delta: fix early boot crash when LED support is disabled
ARM: at91: remove HAVE_FB_ATMEL for sama5 SoC as they use DRM
soc/fsl/qe: Fix an error code in qe_pin_request()
...
This patch set contains an assortment of RISC-V related patches that I'd
like to target for the 5.2 merge window. Most of the patches are
cleanups, but there are a handful of user-visible changes:
* The nosmp and nr_cpus command-line arguments are now supported, which
work like normal.
* The SBI console no longer installs itself as a preferred console, we
rely on standard mechanisms (/chosen, command-line, hueristics)
instead.
* sfence_remove_sfence_vma{,_asid} now pass their arguments along to the
SBI call.
* Modules now support BUG().
* A missing sfence.vma during boot has been added. This bug only
manifests during boot.
* The arch/riscv support for SiFive's L2 cache controller has been
merged, which should un-block the EDAC framework work.
I've only tested this on QEMU again, as I didn't have time to get things
running on the Unleashed. The latest master from this morning merges in
cleanly and passes the tests as well.
This patch set rebased my "5.2 MW, Part 1" patch set which includes an
erronous empty file. It's also a rebase of my "5.2 MW, Part 2" patch
set, in which I managed to create another file while attempting to
remove the empty file.
Sorry for all the noise!
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Merge tag 'riscv-for-linus-5.2-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux
Pull RISC-V updates from Palmer Dabbelt:
"This contains an assortment of RISC-V related patches that I'd like to
target for the 5.2 merge window. Most of the patches are cleanups, but
there are a handful of user-visible changes:
- The nosmp and nr_cpus command-line arguments are now supported,
which work like normal.
- The SBI console no longer installs itself as a preferred console,
we rely on standard mechanisms (/chosen, command-line, hueristics)
instead.
- sfence_remove_sfence_vma{,_asid} now pass their arguments along to
the SBI call.
- Modules now support BUG().
- A missing sfence.vma during boot has been added. This bug only
manifests during boot.
- The arch/riscv support for SiFive's L2 cache controller has been
merged, which should un-block the EDAC framework work.
I've only tested this on QEMU again, as I didn't have time to get
things running on the Unleashed. The latest master from this morning
merges in cleanly and passes the tests as well"
* tag 'riscv-for-linus-5.2-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux: (31 commits)
riscv: fix locking violation in page fault handler
RISC-V: sifive_l2_cache: Add L2 cache controller driver for SiFive SoCs
RISC-V: Add DT documentation for SiFive L2 Cache Controller
RISC-V: Avoid using invalid intermediate translations
riscv: Support BUG() in kernel module
riscv: Add the support for c.ebreak check in is_valid_bugaddr()
riscv: support trap-based WARN()
riscv: fix sbi_remote_sfence_vma{,_asid}.
riscv: move switch_mm to its own file
riscv: move flush_icache_{all,mm} to cacheflush.c
tty: Don't force RISCV SBI console as preferred console
RISC-V: Access CSRs using CSR numbers
RISC-V: Add interrupt related SCAUSE defines in asm/csr.h
RISC-V: Use tabs to align macro values in asm/csr.h
RISC-V: Fix minor checkpatch issues.
RISC-V: Support nr_cpus command line option.
RISC-V: Implement nosmp commandline option.
RISC-V: Add RISC-V specific arch_match_cpu_phys_id
riscv: vdso: drop unnecessary cc-ldoption
riscv: call pm_power_off from machine_halt / machine_power_off
...
Currently on panic, kernel will lower the loglevel and print out pending
printk msg only with console_flush_on_panic().
Add an option for users to configure the "panic_print" to replay all
dmesg in buffer, some of which they may have never seen due to the
loglevel setting, which will help panic debugging .
[feng.tang@intel.com: keep the original console_flush_on_panic() inside panic()]
Link: http://lkml.kernel.org/r/1556199137-14163-1-git-send-email-feng.tang@intel.com
[feng.tang@intel.com: use logbuf lock to protect the console log index]
Link: http://lkml.kernel.org/r/1556269868-22654-1-git-send-email-feng.tang@intel.com
Link: http://lkml.kernel.org/r/1556095872-36838-1-git-send-email-feng.tang@intel.com
Signed-off-by: Feng Tang <feng.tang@intel.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Cc: Aaro Koskinen <aaro.koskinen@nokia.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Borislav Petkov <bp@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* POWER: support for direct access to the POWER9 XIVE interrupt controller,
memory and performance optimizations.
* x86: support for accessing memory not backed by struct page, fixes and refactoring
* Generic: dirty page tracking improvements
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM updates from Paolo Bonzini:
"ARM:
- support for SVE and Pointer Authentication in guests
- PMU improvements
POWER:
- support for direct access to the POWER9 XIVE interrupt controller
- memory and performance optimizations
x86:
- support for accessing memory not backed by struct page
- fixes and refactoring
Generic:
- dirty page tracking improvements"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (155 commits)
kvm: fix compilation on aarch64
Revert "KVM: nVMX: Expose RDPMC-exiting only when guest supports PMU"
kvm: x86: Fix L1TF mitigation for shadow MMU
KVM: nVMX: Disable intercept for FS/GS base MSRs in vmcs02 when possible
KVM: PPC: Book3S: Remove useless checks in 'release' method of KVM device
KVM: PPC: Book3S HV: XIVE: Fix spelling mistake "acessing" -> "accessing"
KVM: PPC: Book3S HV: Make sure to load LPID for radix VCPUs
kvm: nVMX: Set nested_run_pending in vmx_set_nested_state after checks complete
tests: kvm: Add tests for KVM_SET_NESTED_STATE
KVM: nVMX: KVM_SET_NESTED_STATE - Tear down old EVMCS state before setting new state
tests: kvm: Add tests for KVM_CAP_MAX_VCPUS and KVM_CAP_MAX_CPU_ID
tests: kvm: Add tests to .gitignore
KVM: Introduce KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2
KVM: Fix kvm_clear_dirty_log_protect off-by-(minus-)one
KVM: Fix the bitmap range to copy during clear dirty
KVM: arm64: Fix ptrauth ID register masking logic
KVM: x86: use direct accessors for RIP and RSP
KVM: VMX: Use accessors for GPRs outside of dedicated caching logic
KVM: x86: Omit caching logic for always-available GPRs
kvm, x86: Properly check whether a pfn is an MMIO or not
...
i2c_new_dummy is typically called from the probe function of the
driver for the primary i2c client. It requires calls to
i2c_unregister_device in the error path of the probe function and
in the remove function.
This can be simplified by introducing a device-managed version.
Note the changed error case return value type: i2c_new_dummy returns
NULL whilst devm_i2c_new_dummy_device returns an ERR_PTR.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
[wsa: rename new functions and fix minor kdoc issues]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Peter Rosin <peda@axentia.se>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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Merge tag 'afs-fixes-20190516' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull misc AFS fixes from David Howells:
"This fixes a set of miscellaneous issues in the afs filesystem,
including:
- leak of keys on file close.
- broken error handling in xattr functions.
- missing locking when updating VL server list.
- volume location server DNS lookup whereby preloaded cells may not
ever get a lookup and regular DNS lookups to maintain server lists
consume power unnecessarily.
- incorrect error propagation and handling in the fileserver
iteration code causes operations to sometimes apparently succeed.
- interruption of server record check/update side op during
fileserver iteration causes uninterruptible main operations to fail
unexpectedly.
- callback promise expiry time miscalculation.
- over invalidation of the callback promise on directories.
- double locking on callback break waking up file locking waiters.
- double increment of the vnode callback break counter.
Note that it makes some changes outside of the afs code, including:
- an extra parameter to dns_query() to allow the dns_resolver key
just accessed to be immediately invalidated. AFS is caching the
results itself, so the key can be discarded.
- an interruptible version of wait_var_event().
- an rxrpc function to allow the maximum lifespan to be set on a
call.
- a way for an rxrpc call to be marked as non-interruptible"
* tag 'afs-fixes-20190516' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
afs: Fix double inc of vnode->cb_break
afs: Fix lock-wait/callback-break double locking
afs: Don't invalidate callback if AFS_VNODE_DIR_VALID not set
afs: Fix calculation of callback expiry time
afs: Make dynamic root population wait uninterruptibly for proc_cells_lock
afs: Make some RPC operations non-interruptible
rxrpc: Allow the kernel to mark a call as being non-interruptible
afs: Fix error propagation from server record check/update
afs: Fix the maximum lifespan of VL and probe calls
rxrpc: Provide kernel interface to set max lifespan on a call
afs: Fix "kAFS: AFS vnode with undefined type 0"
afs: Fix cell DNS lookup
Add wait_var_event_interruptible()
dns_resolver: Allow used keys to be invalidated
afs: Fix afs_cell records to always have a VL server list record
afs: Fix missing lock when replacing VL server list
afs: Fix afs_xattr_get_yfs() to not try freeing an error value
afs: Fix incorrect error handling in afs_xattr_get_acl()
afs: Fix key leak in afs_release() and afs_evict_inode()
locking. Requires some list_bl interface improvements.
- Add ability for DM integrity to use a bitmap mode, that tracks regions
where data and metadata are out of sync, instead of using a journal.
- Improve DM thin provisioning target to not write metadata changes to
disk if the thin-pool and associated thin devices are merely
activated but not used. This avoids metadata corruption due to
concurrent activation of thin devices across different OS instances
(e.g. split brain scenarios, which ultimately would be avoided if
proper device filters were used -- but not having proper filtering has
proven a very common configuration mistake)
- Fix missing call to path selector type->end_io in DM multipath. This
fixes reported performance problems due to inaccurate path selector IO
accounting causing an imbalance of IO (e.g. avoiding issuing IO to
particular path due to it seemingly being heavily used).
- Fix bug in DM cache metadata's loading of its discard bitset that
could lead to all cache blocks being discarded if the very first cache
block was discarded (thankfully in practice the first cache block is
generally in use; be it FS superblock, partition table, disk label,
etc).
- Add testing-only DM dust target which simulates a device that has
failing sectors and/or read failures.
- Fix a DM init error path reference count hang that caused boot hangs
if user supplied malformed input on kernel commandline.
- Fix a couple issues with DM crypt target's logging being overly
verbose or lacking context.
- Various other small fixes to DM init, DM multipath, DM zoned, and DM
crypt.
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Merge tag 'for-5.2/dm-changes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Improve DM snapshot target's scalability by using finer grained
locking. Requires some list_bl interface improvements.
- Add ability for DM integrity to use a bitmap mode, that tracks
regions where data and metadata are out of sync, instead of using a
journal.
- Improve DM thin provisioning target to not write metadata changes to
disk if the thin-pool and associated thin devices are merely
activated but not used. This avoids metadata corruption due to
concurrent activation of thin devices across different OS instances
(e.g. split brain scenarios, which ultimately would be avoided if
proper device filters were used -- but not having proper filtering
has proven a very common configuration mistake)
- Fix missing call to path selector type->end_io in DM multipath. This
fixes reported performance problems due to inaccurate path selector
IO accounting causing an imbalance of IO (e.g. avoiding issuing IO to
particular path due to it seemingly being heavily used).
- Fix bug in DM cache metadata's loading of its discard bitset that
could lead to all cache blocks being discarded if the very first
cache block was discarded (thankfully in practice the first cache
block is generally in use; be it FS superblock, partition table, disk
label, etc).
- Add testing-only DM dust target which simulates a device that has
failing sectors and/or read failures.
- Fix a DM init error path reference count hang that caused boot hangs
if user supplied malformed input on kernel commandline.
- Fix a couple issues with DM crypt target's logging being overly
verbose or lacking context.
- Various other small fixes to DM init, DM multipath, DM zoned, and DM
crypt.
* tag 'for-5.2/dm-changes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: (42 commits)
dm: fix a couple brace coding style issues
dm crypt: print device name in integrity error message
dm crypt: move detailed message into debug level
dm ioctl: fix hang in early create error condition
dm integrity: whitespace, coding style and dead code cleanup
dm integrity: implement synchronous mode for reboot handling
dm integrity: handle machine reboot in bitmap mode
dm integrity: add a bitmap mode
dm integrity: introduce a function add_new_range_and_wait()
dm integrity: allow large ranges to be described
dm ingerity: pass size to dm_integrity_alloc_page_list()
dm integrity: introduce rw_journal_sectors()
dm integrity: update documentation
dm integrity: don't report unused options
dm integrity: don't check null pointer before kvfree and vfree
dm integrity: correctly calculate the size of metadata area
dm dust: Make dm_dust_init and dm_dust_exit static
dm dust: remove redundant unsigned comparison to less than zero
dm mpath: always free attached_handler_name in parse_path()
dm init: fix max devices/targets checks
...
Convert the vendor prefix registry to a schema. This will enable checking
that new vendor prefixes are added (in addition to the less than perfect
checkpatch.pl check) and will also check against adding other prefixes
which are not vendors.
Converted vendor-prefixes.txt using the following sed script:
sed -e 's/\([a-zA-Z0-9\-]*\)[[:space:]]*\([a-zA-Z0-9].*\)/ "^\1,\.\*\":\n description: \2/'
Signed-off-by: Rob Herring <robh@kernel.org>
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Merge tag 'media/v5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"Some fixes for some platform drivers (rockchip, atmel, omap, daVinci,
tegra-cec, coda and rcar).
Also includes a fix on one of the V4L2 uAPI doc, explaining a border
case"
* tag 'media/v5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: rockchip/vpu: Fix/re-order probe-error/remove path
media: rockchip/vpu: Initialize mdev->bus_info
media: rockchip/vpu: Get vdev from the file arg in vidioc_querycap()
media: rockchip/vpu: Add missing dont_use_autosuspend() calls
media: rockchip/vpu: Do not request id 0 for our video device
media: tegra-cec: fix cec_notifier_parse_hdmi_phandle return check
media: davinci/vpbe: array underflow in vpbe_enum_outputs()
media: field-order.rst: clarify FIELD_ANY and FIELD_NONE
media: staging/imx: add media device to capture register
media: rcar-csi2: Propagate the FLD signal for NTSC and PAL
media: rcar-csi2: restart CSI-2 link if error is detected
media: omap_vout: potential buffer overflow in vidioc_dqbuf()
media: coda: fix unset field and fail on invalid field in buf_prepare
media: atmel: atmel-isc: fix asd memory allocation
media: atmel: atmel-isc: fix INIT_WORK misplacement
media: atmel: atmel-isc: limit incoming pixels per frame
Pull x86 fixes from Ingo Molnar:
"Misc fixes and updates:
- a handful of MDS documentation/comment updates
- a cleanup related to hweight interfaces
- a SEV guest fix for large pages
- a kprobes LTO fix
- and a final cleanup commit for vDSO HPET support removal"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation/mds: Improve CPU buffer clear documentation
x86/speculation/mds: Revert CPU buffer clear on double fault exit
x86/kconfig: Disable CONFIG_GENERIC_HWEIGHT and remove __HAVE_ARCH_SW_HWEIGHT
x86/mm: Do not use set_{pud, pmd}_safe() when splitting a large page
x86/kprobes: Make trampoline_handler() global and visible
x86/vdso: Remove hpet_page from vDSO
The H3 and compatibles controllers don't have any reception capabilities,
even though it was never documented as such in the binding before.
Therefore, on those controllers, we don't have the option to set an RX DMA
channel.
This was already done in the DTSI, but the binding itself was never
updated. Let's add a special case in the schemas.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
The Allwinner SoCs feature an SPDIF controller across multiple SoC
generations.
However, earlier generations were a bit simpler than the subsequent ones,
and for example would always have RX and TX capabilities, and no reset
lines.
In order to express this, let's create two YAML schemas instead of the free
form text we had before.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Various driver updates for platforms and a couple of the small driver
subsystems we merge through our tree:
Among the larger pieces:
- Power management improvements for TI am335x and am437x (RTC suspend/wake)
- Misc new additions for Amlogic (socinfo updates)
- ZynqMP FPGA manager
- Nvidia improvements for reset/powergate handling
- PMIC wrapper for Mediatek MT8516
- Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC-related driver updates from Olof Johansson:
"Various driver updates for platforms and a couple of the small driver
subsystems we merge through our tree:
Among the larger pieces:
- Power management improvements for TI am335x and am437x (RTC
suspend/wake)
- Misc new additions for Amlogic (socinfo updates)
- ZynqMP FPGA manager
- Nvidia improvements for reset/powergate handling
- PMIC wrapper for Mediatek MT8516
- Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (57 commits)
soc: aspeed: fix Kconfig
soc: add aspeed folder and misc drivers
spi: zynqmp: Fix build break
soc: imx: Add generic i.MX8 SoC driver
MAINTAINERS: Update email for Qualcomm SoC maintainer
memory: tegra: Fix a typos for "fdcdwr2" mc client
Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+"
memory: tegra: Replace readl-writel with mc_readl-mc_writel
memory: tegra: Fix integer overflow on tick value calculation
memory: tegra: Fix missed registers values latching
ARM: tegra: cpuidle: Handle tick broadcasting within cpuidle core on Tegra20/30
optee: allow to work without static shared memory
soc/tegra: pmc: Move powergate initialisation to probe
soc/tegra: pmc: Remove reset sysfs entries on error
soc/tegra: pmc: Fix reset sources and levels
soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A
soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask
fpga manager: Adding FPGA Manager support for Xilinx zynqmp
dt-bindings: fpga: Add bindings for ZynqMP fpga driver
firmware: xilinx: Add fpga API's
...
SoC updates, mostly refactorings and cleanups of old legacy platforms.
Major themes this release:
- Conversion of ixp4xx to a modern platform (drivers, DT, bindings)
- Moving some of the ep93xx headers around to get it closer to multiplatform enabled.
- Cleanups of Davinci
This tag also contains a few patches that were queued up as fixes before
5.1 but I didn't get sent in before release.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC platform updates from Olof Johansson:
"SoC updates, mostly refactorings and cleanups of old legacy platforms.
Major themes this release:
- Conversion of ixp4xx to a modern platform (drivers, DT, bindings)
- Moving some of the ep93xx headers around to get it closer to
multiplatform enabled.
- Cleanups of Davinci
This also contains a few patches that were queued up as fixes before
5.1 but I didn't get sent in before release"
* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (123 commits)
ARM: debug-ll: add default address for digicolor
ARM: u300: regulator: add MODULE_LICENSE()
ARM: ep93xx: move private headers out of mach/*
ARM: ep93xx: move pinctrl interfaces into include/linux/soc
ARM: ep93xx: keypad: stop using mach/platform.h
ARM: ep93xx: move network platform data to separate header
ARM: stm32: add AMBA support for stm32 family
MAINTAINERS: update arch/arm/mach-davinci
ARM: rockchip: add missing of_node_put in rockchip_smp_prepare_pmu
ARM: dts: Add queue manager and NPE to the IXP4xx DTSI
soc: ixp4xx: qmgr: Add DT probe code
soc: ixp4xx: qmgr: Add DT bindings for IXP4xx qmgr
soc: ixp4xx: npe: Add DT probe code
soc: ixp4xx: Add DT bindings for IXP4xx NPE
soc: ixp4xx: qmgr: Pass resources
soc: ixp4xx: Remove unused functions
soc: ixp4xx: Uninline several functions
soc: ixp4xx: npe: Pass addresses as resources
ARM: ixp4xx: Turn the QMGR into a platform device
ARM: ixp4xx: Turn the NPE into a platform device
...
Allow kernel services using AF_RXRPC to indicate that a call should be
non-interruptible. This allows kafs to make things like lock-extension and
writeback data storage calls non-interruptible.
If this is set, signals will be ignored for operations on that call where
possible - such as waiting to get a call channel on an rxrpc connection.
It doesn't prevent UDP sendmsg from being interrupted, but that will be
handled by packet retransmission.
rxrpc_kernel_recv_data() isn't affected by this since that never waits,
preferring instead to return -EAGAIN and leave the waiting to the caller.
Userspace initiated calls can't be set to be uninterruptible at this time.
Signed-off-by: David Howells <dhowells@redhat.com>
Pull thermal soc updates from Eduardo Valentin:
- thermal core has a new devm_* API for registering cooling devices. I
took the entire series, that is why you see changes on drivers/hwmon
in this pull (Guenter Roeck)
- rockchip thermal driver gains support to PX30 SoC (Elaine Zhang)
- the generic-adc thermal driver now considers the lookup table DT
property as optional (Jean-Francois Dagenais)
- Refactoring of tsens thermal driver (Amit Kucheria)
- Cleanups on cpu cooling driver (Daniel Lezcano)
- broadcom thermal driver dropped support to ACPI (Srinath Mannam)
- tegra thermal driver gains support to OC hw throttle and GPU throtle
(Wei Ni)
- Fixes in several thermal drivers.
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: (59 commits)
hwmon: (pwm-fan) Use devm_thermal_of_cooling_device_register
hwmon: (npcm750-pwm-fan) Use devm_thermal_of_cooling_device_register
hwmon: (mlxreg-fan) Use devm_thermal_of_cooling_device_register
hwmon: (gpio-fan) Use devm_thermal_of_cooling_device_register
hwmon: (aspeed-pwm-tacho) Use devm_thermal_of_cooling_device_register
thermal: rcar_gen3_thermal: Fix to show correct trip points number
thermal: rcar_thermal: update calculation formula for R-Car Gen3 SoCs
thermal: cpu_cooling: Actually trace CPU load in thermal_power_cpu_get_power
thermal: rockchip: Support the PX30 SoC in thermal driver
dt-bindings: rockchip-thermal: Support the PX30 SoC compatible
thermal: rockchip: fix up the tsadc pinctrl setting error
thermal: broadcom: Remove ACPI support
thermal: Fix build error of missing devm_ioremap_resource on UM
thermal/drivers/cpu_cooling: Remove pointless field
thermal/drivers/cpu_cooling: Add Software Package Data Exchange (SPDX)
thermal/drivers/cpu_cooling: Fixup the header and copyright
thermal/drivers/cpu_cooling: Remove pointless test in power2state()
thermal: rcar_gen3_thermal: disable interrupt in .remove
thermal: rcar_gen3_thermal: fix interrupt type
thermal: Introduce devm_thermal_of_cooling_device_register
...
Provide an interface to set max lifespan on a call from inside of the
kernel without having to call kernel_sendmsg().
Signed-off-by: David Howells <dhowells@redhat.com>
Add the bindings and the related documentation for the audio hdmitx
control glue of the Amlogic g12a SoC family
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
On x86_64, all returns to usermode go through
prepare_exit_to_usermode(), with the sole exception of do_nmi().
This even includes machine checks -- this was added several years
ago to support MCE recovery. Update the documentation.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jon Masters <jcm@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes: 04dcbdb805 ("x86/speculation/mds: Clear CPU buffers on exit to user")
Link: http://lkml.kernel.org/r/999fa9e126ba6a48e9d214d2f18dbde5c62ac55c.1557865329.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The double fault ESPFIX path doesn't return to user mode at all --
it returns back to the kernel by simulating a #GP fault.
prepare_exit_to_usermode() will run on the way out of
general_protection before running user code.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Frederic Weisbecker <frederic@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jon Masters <jcm@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Fixes: 04dcbdb805 ("x86/speculation/mds: Clear CPU buffers on exit to user")
Link: http://lkml.kernel.org/r/ac97612445c0a44ee10374f6ea79c222fe22a5c4.1557865329.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Merge in a few pending fixes from pre-5.1 that didn't get sent in:
MAINTAINERS: update arch/arm/mach-davinci
ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect
ARM: dts: imx6q-logicpd: Reduce inrush current on USBH1
ARM: dts: imx6q-logicpd: Reduce inrush current on start
ARM: dts: imx: Fix the AR803X phy-mode
ARM: dts: sun8i: a33: Reintroduce default pinctrl muxing
arm64: dts: allwinner: a64: Rename hpvcc-supply to cpvdd-supply
ARM: sunxi: fix a leaked reference by adding missing of_node_put
ARM: sunxi: fix a leaked reference by adding missing of_node_put
Signed-off-by: Olof Johansson <olof@lixom.net>
Core:
* Add over-current health state
* Add standard, adaptive and custom charge types
* Add new properties for start/end charge threshold
New Drivers / Hardware:
* UCS1002 Programmable USB Port Power Controller
* Ingenic JZ47xx Battery Fuel Gauge
* AXP20x USB Power: Add AXP813 support
* AT91 poweroff: Add SAM9X60 support
* OLPC battery: Add XO-1.5 and XO-1.75 support
Misc. Changes:
* syscon-reboot: support mask property
* AXP288 fuel gauge: Blacklist ACEPC T8/T11
- Looks like some vendor thought it's a good idea to
build a desktop system with a fuel gauge, that slowly
"discharges"...
* cpcap-battery: Fix calculation errors
* misc. fixes
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Merge tag 'for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"Core:
- Add over-current health state
- Add standard, adaptive and custom charge types
- Add new properties for start/end charge threshold
New Drivers / Hardware:
- UCS1002 Programmable USB Port Power Controller
- Ingenic JZ47xx Battery Fuel Gauge
- AXP20x USB Power: Add AXP813 support
- AT91 poweroff: Add SAM9X60 support
- OLPC battery: Add XO-1.5 and XO-1.75 support
Misc Changes:
- syscon-reboot: support mask property
- AXP288 fuel gauge: Blacklist ACEPC T8/T11. Looks like some vendor
thought it's a good idea to build a desktop system with a fuel
gauge, that slowly "discharges"...
- cpcap-battery: Fix calculation errors
- misc fixes"
* tag 'for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (54 commits)
power: supply: olpc_battery: force the le/be casts
power: supply: ucs1002: Fix build error without CONFIG_REGULATOR
power: supply: ucs1002: Fix wrong return value checking
power: supply: Add driver for Microchip UCS1002
dt-bindings: power: supply: Add bindings for Microchip UCS1002
power: supply: core: Add POWER_SUPPLY_HEALTH_OVERCURRENT constant
power: supply: core: fix clang -Wunsequenced
power: supply: core: Add missing documentation for CHARGE_CONTROL_* properties
power: supply: core: Add CHARGE_CONTROL_{START_THRESHOLD,END_THRESHOLD} properties
power: supply: core: Add Standard, Adaptive, and Custom charge types
power: supply: axp288_fuel_gauge: Add ACEPC T8 and T11 mini PCs to the blacklist
power: supply: bq27xxx_battery: Notify also about status changes
power: supply: olpc_battery: Have the framework register sysfs files for us
power: supply: olpc_battery: Add OLPC XO 1.75 support
power: supply: olpc_battery: Avoid using platform_info
power: supply: olpc_battery: Use devm_power_supply_register()
power: supply: olpc_battery: Move priv data to a struct
power: supply: olpc_battery: Use DT to get battery version
x86/platform/olpc: Use a correct version when making up a battery node
x86/platform/olpc: Trivial code move in DT fixup
...
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Merge tag 'for-linus-5.2b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- some minor cleanups
- two small corrections for Xen on ARM
- two fixes for Xen PVH guest support
- a patch for a new command line option to tune virtual timer handling
* tag 'for-linus-5.2b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/arm: Use p2m entry with lock protection
xen/arm: Free p2m entry if fail to add it to RB tree
xen/pvh: correctly setup the PV EFI interface for dom0
xen/pvh: set xen_domain_type to HVM in xen_pvh_init
xenbus: drop useless LIST_HEAD in xenbus_write_watch() and xenbus_file_write()
xen-netfront: mark expected switch fall-through
xen: xen-pciback: fix warning Using plain integer as NULL pointer
x86/xen: Add "xen_timer_slop" command line option
Daniel Borkmann says:
====================
pull-request: bpf 2019-05-16
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Fix a use after free in __dev_map_entry_free(), from Eric.
2) Several sockmap related bug fixes: a splat in strparser if
it was never initialized, remove duplicate ingress msg list
purging which can race, fix msg->sg.size accounting upon
skb to msg conversion, and last but not least fix a timeout
bug in tcp_bpf_wait_data(), from John.
3) Fix LRU map to avoid messing with eviction heuristics upon
syscall lookup, e.g. map walks from user space side will
then lead to eviction of just recently created entries on
updates as it would mark all map entries, from Daniel.
4) Don't bail out when libbpf feature probing fails. Also
various smaller fixes to flow_dissector test, from Stanislav.
5) Fix missing brackets for BTF_INT_OFFSET() in UAPI, from Gary.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
- Removing of non-DYNAMIC_FTRACE from 32bit x86
- Removing of mcount support from x86
- Emulating a call from int3 on x86_64, fixes live kernel patching
- Consolidated Tracing Error logs file
Minor updates:
- Removal of klp_check_compiler_support()
- kdb ftrace dumping output changes
- Accessing and creating ftrace instances from inside the kernel
- Clean up of #define if macro
- Introduction of TRACE_EVENT_NOP() to disable trace events based on config
options
And other minor fixes and clean ups
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Merge tag 'trace-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing updates from Steven Rostedt:
"The major changes in this tracing update includes:
- Removal of non-DYNAMIC_FTRACE from 32bit x86
- Removal of mcount support from x86
- Emulating a call from int3 on x86_64, fixes live kernel patching
- Consolidated Tracing Error logs file
Minor updates:
- Removal of klp_check_compiler_support()
- kdb ftrace dumping output changes
- Accessing and creating ftrace instances from inside the kernel
- Clean up of #define if macro
- Introduction of TRACE_EVENT_NOP() to disable trace events based on
config options
And other minor fixes and clean ups"
* tag 'trace-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (44 commits)
x86: Hide the int3_emulate_call/jmp functions from UML
livepatch: Remove klp_check_compiler_support()
ftrace/x86: Remove mcount support
ftrace/x86_32: Remove support for non DYNAMIC_FTRACE
tracing: Simplify "if" macro code
tracing: Fix documentation about disabling options using trace_options
tracing: Replace kzalloc with kcalloc
tracing: Fix partial reading of trace event's id file
tracing: Allow RCU to run between postponed startup tests
tracing: Fix white space issues in parse_pred() function
tracing: Eliminate const char[] auto variables
ring-buffer: Fix mispelling of Calculate
tracing: probeevent: Fix to make the type of $comm string
tracing: probeevent: Do not accumulate on ret variable
tracing: uprobes: Re-enable $comm support for uprobe events
ftrace/x86_64: Emulate call function while updating in breakpoint handler
x86_64: Allow breakpoints to emulate call instructions
x86_64: Add gap to int3 to allow for call emulation
tracing: kdb: Allow ftdump to skip all but the last few entries
tracing: Add trace_total_entries() / trace_total_entries_cpu()
...
- guest SVE support
- guest Pointer Authentication support
- Better discrimination of perf counters between host and guests
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Merge tag 'kvmarm-for-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm updates for 5.2
- guest SVE support
- guest Pointer Authentication support
- Better discrimination of perf counters between host and guests
Conflicts:
include/uapi/linux/kvm.h
- Fix a bug, fix a spelling mistake, remove some useless code.
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Merge tag 'kvm-ppc-next-5.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc into HEAD
PPC KVM update for 5.2
* Support for guests to access the new POWER9 XIVE interrupt controller
hardware directly, reducing interrupt latency and overhead for guests.
* In-kernel implementation of the H_PAGE_INIT hypercall.
* Reduce memory usage of sparsely-populated IOMMU tables.
* Several bug fixes.
Second PPC KVM update for 5.2
* Fix a bug, fix a spelling mistake, remove some useless code.
- Update the ACPICA code in the kernel to upstream revision 20190509
including one regression fix:
* Prevent excessive ACPI debug messages from being printed
by moving the ACPI_DEBUG_DEFAULT definition to the right
place (Erik Schmauss).
- Set the enable_for_wake bits for wakeup GPEs during suspend to
idle to allow acpi_enable_all_wakeup_gpes() to enable them as
aproppriate and make wakeup devices sighaling events through ACPI
GPEs work with suspend-to-idle again (Rajat Jain).
- Use 64 bits to store the return values of _ADR which are assumed
to be 64-bit by some bus specs and may contain nonzero bits in the
upper 32 bits part for some devices (Pierre-Louis Bossart).
- Fix two minor issues with the ACPI documentation (Sakari Ailus).
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Merge tag 'acpi-5.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"These fix two regressions introduced during the 5.0 cycle, in ACPICA
and in device PM, cause the values returned by _ADR to be stored in 64
bits and fix two ACPI documentation issues.
Specifics:
- Update the ACPICA code in the kernel to upstream revision 20190509
including one regression fix:
* Prevent excessive ACPI debug messages from being printed by
moving the ACPI_DEBUG_DEFAULT definition to the right place
(Erik Schmauss).
- Set the enable_for_wake bits for wakeup GPEs during suspend to idle
to allow acpi_enable_all_wakeup_gpes() to enable them as
aproppriate and make wakeup devices sighaling events through ACPI
GPEs work with suspend-to-idle again (Rajat Jain).
- Use 64 bits to store the return values of _ADR which are assumed to
be 64-bit by some bus specs and may contain nonzero bits in the
upper 32 bits part for some devices (Pierre-Louis Bossart).
- Fix two minor issues with the ACPI documentation (Sakari Ailus)"
* tag 'acpi-5.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: PM: Set enable_for_wake for wakeup GPEs during suspend-to-idle
Documentation: ACPI: Direct references are allowed to devices only
Documentation: ACPI: Use tabs for graph ASL indentation
ACPICA: Update version to 20190509
ACPICA: Linux: move ACPI_DEBUG_DEFAULT flag out of ifndef
ACPI: bus: change _ADR representation to 64 bits
The maximum number of unique System V IPC identifiers was limited to
32k. That limit should be big enough for most use cases.
However, there are some users out there requesting for more, especially
those that are migrating from Solaris which uses 24 bits for unique
identifiers. To satisfy the need of those users, a new boot time kernel
option "ipcmni_extend" is added to extend the IPCMNI value to 16M. This
is a 512X increase which should be big enough for users out there that
need a large number of unique IPC identifier.
The use of this new option will change the pattern of the IPC
identifiers returned by functions like shmget(2). An application that
depends on such pattern may not work properly. So it should only be
used if the users really need more than 32k of unique IPC numbers.
This new option does have the side effect of reducing the maximum number
of unique sequence numbers from 64k down to 128. So it is a trade-off.
The computation of a new IPC id is not done in the performance critical
path. So a little bit of additional overhead shouldn't have any real
performance impact.
Link: http://lkml.kernel.org/r/20190329204930.21620-1-longman@redhat.com
Signed-off-by: Waiman Long <longman@redhat.com>
Acked-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davidlohr Bueso <dbueso@suse.de>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kees Cook <keescook@chromium.org>
Cc: "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch implements the device tree binding changes required for the
PPS ECHO functionality for pps-gpio, that sysfs claims is available
already.
It adds two DT properties for configuring the PPS ECHO functionality.
This patch is provided separated from the rest of the patch per
Documentation/devicetree/bindings/submitting-patches.txt.
This patch was originally written by Lukas Senger as part of a masters
thesis project and modified for inclusion into the linux kernel by Tom
Burkart.
Link: http://lkml.kernel.org/r/20190324043305.6627-3-tom@aussec.com
Signed-off-by: Tom Burkart <tom@aussec.com>
Signed-off-by: Lukas Senger <lukas@fridolin.com>
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Allow specifying reboot_mode for panic only. This is needed on systems
where ramoops is used to store panic logs, and user wants to use warm
reset to preserve those, while still having cold reset on normal
reboots.
Link: http://lkml.kernel.org/r/20190322004735.27702-1-aaro.koskinen@iki.fi
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Document some things of note to gcov users:
1. GCC gcov and Clang llvm-cov tools are not compatible.
2. The use of GCC vs Clang is transparent at build-time.
Also adjust the documentation to account for the removal of config symbol
CONFIG_GCOV_FORMAT_AUTODETECT by commit 6a61b70b43 ("gcov: remove
CONFIG_GCOV_FORMAT_AUTODETECT").
Link: http://lkml.kernel.org/r/20190318025411.98014-4-trong@android.com
Signed-off-by: Tri Vo <trong@android.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Daniel Mentz <danielmentz@google.com>
Cc: Greg Hackmann <ghackmann@android.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Petri Gynther <pgynther@google.com>
Cc: Prasad Sodagudi <psodagud@quicinc.com>
Cc: Trilok Soni <tsoni@quicinc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add a description of the "ignore" pseudo mount option that can be used
to provide a generic indicator to applications that the mount entry
should be ignored when displaying mount information.
Link: http://lkml.kernel.org/r/155287084617.12593.812733161112154904.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Describe AUTOFS_EXP_FORCED in addition to AUTOFS_EXP_IMMEDIATE in the
description of the AUTOFS_DEV_IOCTL_EXPIRE_CMD ioctl.
Link: http://lkml.kernel.org/r/155287084078.12593.15000931045413195778.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update the description of AUTOFS_EXP_LEAVES to cover its possible future
use with amd format mount maps.
Link: http://lkml.kernel.org/r/155287083538.12593.18163159677020718048.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A "strictexpire" mount option has been added to the autofs file system.
It is meant to be used in cases where a GUI continually accesses or an
application frquently scans an automount directory tree causing an
accumulation of otherwise unused mounts.
Link: http://lkml.kernel.org/r/155287083000.12593.2722713092537666885.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alter a few word usages in Documentation/filesystems/autofs.txt and
correct some spelling mistakes.
Link: http://lkml.kernel.org/r/155287082394.12593.6506084453911662450.stgit@pluto.themaw.net
Signed-off-by: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
For better maintenance and expansion move the mathematic helpers to the
separate folder.
No functional change intended.
Note, the int_sqrt() is not used as a part of lib, so, moved to regular
obj.
Link: http://lkml.kernel.org/r/20190323172531.80025-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Daniel Thompson <daniel.thompson@linaro.org>
Cc: Ray Jui <rjui@broadcom.com>
[mchehab+samsung@kernel.org: fix broken doc references for div64.c and gcd.c]
Link: http://lkml.kernel.org/r/734f49bae5d4052b3c25691dfefad59bea2e5843.1555580999.git.mchehab+samsung@kernel.org
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "mm: Randomize free memory", v10.
This patch (of 3):
Randomization of the page allocator improves the average utilization of
a direct-mapped memory-side-cache. Memory side caching is a platform
capability that Linux has been previously exposed to in HPC
(high-performance computing) environments on specialty platforms. In
that instance it was a smaller pool of high-bandwidth-memory relative to
higher-capacity / lower-bandwidth DRAM. Now, this capability is going
to be found on general purpose server platforms where DRAM is a cache in
front of higher latency persistent memory [1].
Robert offered an explanation of the state of the art of Linux
interactions with memory-side-caches [2], and I copy it here:
It's been a problem in the HPC space:
http://www.nersc.gov/research-and-development/knl-cache-mode-performance-coe/
A kernel module called zonesort is available to try to help:
https://software.intel.com/en-us/articles/xeon-phi-software
and this abandoned patch series proposed that for the kernel:
https://lkml.kernel.org/r/20170823100205.17311-1-lukasz.daniluk@intel.com
Dan's patch series doesn't attempt to ensure buffers won't conflict, but
also reduces the chance that the buffers will. This will make performance
more consistent, albeit slower than "optimal" (which is near impossible
to attain in a general-purpose kernel). That's better than forcing
users to deploy remedies like:
"To eliminate this gradual degradation, we have added a Stream
measurement to the Node Health Check that follows each job;
nodes are rebooted whenever their measured memory bandwidth
falls below 300 GB/s."
A replacement for zonesort was merged upstream in commit cc9aec03e5
("x86/numa_emulation: Introduce uniform split capability"). With this
numa_emulation capability, memory can be split into cache sized
("near-memory" sized) numa nodes. A bind operation to such a node, and
disabling workloads on other nodes, enables full cache performance.
However, once the workload exceeds the cache size then cache conflicts
are unavoidable. While HPC environments might be able to tolerate
time-scheduling of cache sized workloads, for general purpose server
platforms, the oversubscribed cache case will be the common case.
The worst case scenario is that a server system owner benchmarks a
workload at boot with an un-contended cache only to see that performance
degrade over time, even below the average cache performance due to
excessive conflicts. Randomization clips the peaks and fills in the
valleys of cache utilization to yield steady average performance.
Here are some performance impact details of the patches:
1/ An Intel internal synthetic memory bandwidth measurement tool, saw a
3X speedup in a contrived case that tries to force cache conflicts.
The contrived cased used the numa_emulation capability to force an
instance of the benchmark to be run in two of the near-memory sized
numa nodes. If both instances were placed on the same emulated they
would fit and cause zero conflicts. While on separate emulated nodes
without randomization they underutilized the cache and conflicted
unnecessarily due to the in-order allocation per node.
2/ A well known Java server application benchmark was run with a heap
size that exceeded cache size by 3X. The cache conflict rate was 8%
for the first run and degraded to 21% after page allocator aging. With
randomization enabled the rate levelled out at 11%.
3/ A MongoDB workload did not observe measurable difference in
cache-conflict rates, but the overall throughput dropped by 7% with
randomization in one case.
4/ Mel Gorman ran his suite of performance workloads with randomization
enabled on platforms without a memory-side-cache and saw a mix of some
improvements and some losses [3].
While there is potentially significant improvement for applications that
depend on low latency access across a wide working-set, the performance
may be negligible to negative for other workloads. For this reason the
shuffle capability defaults to off unless a direct-mapped
memory-side-cache is detected. Even then, the page_alloc.shuffle=0
parameter can be specified to disable the randomization on those systems.
Outside of memory-side-cache utilization concerns there is potentially
security benefit from randomization. Some data exfiltration and
return-oriented-programming attacks rely on the ability to infer the
location of sensitive data objects. The kernel page allocator, especially
early in system boot, has predictable first-in-first out behavior for
physical pages. Pages are freed in physical address order when first
onlined.
Quoting Kees:
"While we already have a base-address randomization
(CONFIG_RANDOMIZE_MEMORY), attacks against the same hardware and
memory layouts would certainly be using the predictability of
allocation ordering (i.e. for attacks where the base address isn't
important: only the relative positions between allocated memory).
This is common in lots of heap-style attacks. They try to gain
control over ordering by spraying allocations, etc.
I'd really like to see this because it gives us something similar
to CONFIG_SLAB_FREELIST_RANDOM but for the page allocator."
While SLAB_FREELIST_RANDOM reduces the predictability of some local slab
caches it leaves vast bulk of memory to be predictably in order allocated.
However, it should be noted, the concrete security benefits are hard to
quantify, and no known CVE is mitigated by this randomization.
Introduce shuffle_free_memory(), and its helper shuffle_zone(), to perform
a Fisher-Yates shuffle of the page allocator 'free_area' lists when they
are initially populated with free memory at boot and at hotplug time. Do
this based on either the presence of a page_alloc.shuffle=Y command line
parameter, or autodetection of a memory-side-cache (to be added in a
follow-on patch).
The shuffling is done in terms of CONFIG_SHUFFLE_PAGE_ORDER sized free
pages where the default CONFIG_SHUFFLE_PAGE_ORDER is MAX_ORDER-1 i.e. 10,
4MB this trades off randomization granularity for time spent shuffling.
MAX_ORDER-1 was chosen to be minimally invasive to the page allocator
while still showing memory-side cache behavior improvements, and the
expectation that the security implications of finer granularity
randomization is mitigated by CONFIG_SLAB_FREELIST_RANDOM. The
performance impact of the shuffling appears to be in the noise compared to
other memory initialization work.
This initial randomization can be undone over time so a follow-on patch is
introduced to inject entropy on page free decisions. It is reasonable to
ask if the page free entropy is sufficient, but it is not enough due to
the in-order initial freeing of pages. At the start of that process
putting page1 in front or behind page0 still keeps them close together,
page2 is still near page1 and has a high chance of being adjacent. As
more pages are added ordering diversity improves, but there is still high
page locality for the low address pages and this leads to no significant
impact to the cache conflict rate.
[1]: https://itpeernetwork.intel.com/intel-optane-dc-persistent-memory-operating-modes/
[2]: https://lkml.kernel.org/r/AT5PR8401MB1169D656C8B5E121752FC0F8AB120@AT5PR8401MB1169.NAMPRD84.PROD.OUTLOOK.COM
[3]: https://lkml.org/lkml/2018/10/12/309
[dan.j.williams@intel.com: fix shuffle enable]
Link: http://lkml.kernel.org/r/154943713038.3858443.4125180191382062871.stgit@dwillia2-desk3.amr.corp.intel.com
[cai@lca.pw: fix SHUFFLE_PAGE_ALLOCATOR help texts]
Link: http://lkml.kernel.org/r/20190425201300.75650-1-cai@lca.pw
Link: http://lkml.kernel.org/r/154899811738.3165233.12325692939590944259.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Qian Cai <cai@lca.pw>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Keith Busch <keith.busch@intel.com>
Cc: Robert Elliott <elliott@hpe.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Psi monitor aims to provide a low-latency short-term pressure detection
mechanism configurable by users. It allows users to monitor psi metrics
growth and trigger events whenever a metric raises above user-defined
threshold within user-defined time window.
Time window and threshold are both expressed in usecs. Multiple psi
resources with different thresholds and window sizes can be monitored
concurrently.
Psi monitors activate when system enters stall state for the monitored
psi metric and deactivate upon exit from the stall state. While system
is in the stall state psi signal growth is monitored at a rate of 10
times per tracking window. Min window size is 500ms, therefore the min
monitoring interval is 50ms. Max window size is 10s with monitoring
interval of 1s.
When activated psi monitor stays active for at least the duration of one
tracking window to avoid repeated activations/deactivations when psi
signal is bouncing.
Notifications to the users are rate-limited to one per tracking window.
Link: http://lkml.kernel.org/r/20190319235619.260832-8-surenb@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Document (kerneldoc) core mfd_add_devices() API
- New Drivers
- Add support for Altera SOCFPGA System Manager
- Add support for Maxim MAX77650/77651 PMIC
- Add support for Maxim MAX77663 PMIC
- Add support for ST Multi-Function eXpander (STMFX)
- New Device Support
- Add support for LEDs to Intel Cherry Trail Whiskey Cove PMIC
- Add support for RTC to SAMSUNG Electronics S2MPA01 PMIC
- Add support for SAM9X60 to Atmel HLCDC (High-end LCD Controller)
- Add support for USB X-Powers AXP 8xx PMICs
- Add support for Integrated Sensor Hub (ISH) to ChromeOS EC
- Add support for USB PD Logger to ChromeOS EC
- Add support for AXP223 to X-Powers AXP series PMICs
- Add support for Power Supply to X-Powers AXP 803 PMICs
- Add support for Comet Lake to Intel Low Power Subsystem
- Add support for Fingerprint MCU to ChromeOS EC
- Add support for Touchpad MCU to ChromeOS EC
- Move TI LM3532 support to LED
- New Functionality
- Add/extend DT support; max77650, max77620
- Add support for power-off; max77620
- Add support for clocking; syscon
- Add support for host sleep event; cros_ec
- Fix-ups
- Trivial; Formatting, spelling, etc; Kconfig, sec-core, ab8500-debugfs
- Remove unused functionality; rk808, da9063-*
- SPDX conversion; da9063-*, atmel-*,
- Adapt/add new register definitions; cs47l35-tables, cs47l90-tables, imx6q-iomuxc-gpr
- Fix-up DT bindings; ti-lmu, cirrus,lochnagar
- Simply obtaining driver data; ssbi, t7l66xb, tc6387xb, tc6393xb
- Bug Fixes
- Fix incorrect defined values; max77620, da9063
- Fix device initialisation; twl6040
- Reset device on init; intel-lpss
- Fix build warnings when !OF; sun6i-prcm
- Register OF match tables; tps65912-spi
- Fix DMI matching; intel_quark_i2c_gpio
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Merge tag 'mfd-next-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Core Framework:
- Document (kerneldoc) core mfd_add_devices() API
New Drivers:
- Altera SOCFPGA System Manager
- Maxim MAX77650/77651 PMIC
- Maxim MAX77663 PMIC
- ST Multi-Function eXpander (STMFX)
New Device Support:
- LEDs support in Intel Cherry Trail Whiskey Cove PMIC
- RTC support in SAMSUNG Electronics S2MPA01 PMIC
- SAM9X60 support in Atmel HLCDC (High-end LCD Controller)
- USB X-Powers AXP 8xx PMICs
- Integrated Sensor Hub (ISH) in ChromeOS EC
- USB PD Logger in ChromeOS EC
- AXP223 in X-Powers AXP series PMICs
- Power Supply in X-Powers AXP 803 PMICs
- Comet Lake in Intel Low Power Subsystem
- Fingerprint MCU in ChromeOS EC
- Touchpad MCU in ChromeOS EC
- Move TI LM3532 support to LED
New Functionality:
- max77650, max77620: Add/extend DT support
- max77620 power-off
- syscon clocking
- croc_ec host sleep event
Fix-ups:
- Trivial; Formatting, spelling, etc; Kconfig, sec-core, ab8500-debugfs
- Remove unused functionality; rk808, da9063-*
- SPDX conversion; da9063-*, atmel-*,
- Adapt/add new register definitions; cs47l35-tables, cs47l90-tables, imx6q-iomuxc-gpr
- Fix-up DT bindings; ti-lmu, cirrus,lochnagar
- Simply obtaining driver data; ssbi, t7l66xb, tc6387xb, tc6393xb
Bug Fixes:
- Fix incorrect defined values; max77620, da9063
- Fix device initialisation; twl6040
- Reset device on init; intel-lpss
- Fix build warnings when !OF; sun6i-prcm
- Register OF match tables; tps65912-spi
- Fix DMI matching; intel_quark_i2c_gpio"
* tag 'mfd-next-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (65 commits)
mfd: Use dev_get_drvdata() directly
mfd: cros_ec: Instantiate properly CrOS Touchpad MCU device
mfd: cros_ec: Instantiate properly CrOS FP MCU device
mfd: cros_ec: Update the EC feature codes
mfd: intel-lpss: Add Intel Comet Lake PCI IDs
mfd: lochnagar: Add links to binding docs for sound and hwmon
mfd: ab8500-debugfs: Fix a typo ("deubgfs")
mfd: imx6sx: Add MQS register definition for iomuxc gpr
dt-bindings: mfd: LMU: Fix lm3632 dt binding example
mfd: intel_quark_i2c_gpio: Adjust IOT2000 matching
mfd: da9063: Fix OTP control register names to match datasheets for DA9063/63L
mfd: tps65912-spi: Add missing of table registration
mfd: axp20x: Add USB power supply mfd cell to AXP803
mfd: sun6i-prcm: Fix build warning for non-OF configurations
mfd: intel-lpss: Set the device in reset state when init
platform/chrome: Add support for v1 of host sleep event
mfd: cros_ec: Add host_sleep_event_v1 command
mfd: cros_ec: Instantiate the CrOS USB PD logger driver
mfd: cs47l90: Make DAC_AEC_CONTROL_2 readable
mfd: cs47l35: Make DAC_AEC_CONTROL_2 readable
...
Merge misc updates from Andrew Morton:
- a few misc things and hotfixes
- ocfs2
- almost all of MM
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (139 commits)
kernel/memremap.c: remove the unused device_private_entry_fault() export
mm: delete find_get_entries_tag
mm/huge_memory.c: make __thp_get_unmapped_area static
mm/mprotect.c: fix compilation warning because of unused 'mm' variable
mm/page-writeback: introduce tracepoint for wait_on_page_writeback()
mm/vmscan: simplify trace_reclaim_flags and trace_shrink_flags
mm/Kconfig: update "Memory Model" help text
mm/vmscan.c: don't disable irq again when count pgrefill for memcg
mm: memblock: make keeping memblock memory opt-in rather than opt-out
hugetlbfs: always use address space in inode for resv_map pointer
mm/z3fold.c: support page migration
mm/z3fold.c: add structure for buddy handles
mm/z3fold.c: improve compression by extending search
mm/z3fold.c: introduce helper functions
mm/page_alloc.c: remove unnecessary parameter in rmqueue_pcplist
mm/hmm: add ARCH_HAS_HMM_MIRROR ARCH_HAS_HMM_DEVICE Kconfig
mm/vmscan.c: simplify shrink_inactive_list()
fs/sync.c: sync_file_range(2) may use WB_SYNC_ALL writeback
xen/privcmd-buf.c: convert to use vm_map_pages_zero()
xen/gntdev.c: convert to use vm_map_pages()
...
The HMM mirror API can be use in two fashions. The first one where the
HMM user coalesce multiple page faults into one request and set flags per
pfns for of those faults. The second one where the HMM user want to
pre-fault a range with specific flags. For the latter one it is a waste
to have the user pre-fill the pfn arrays with a default flags value.
This patch adds a default flags value allowing user to set them for a
range without having to pre-fill the pfn array.
Link: http://lkml.kernel.org/r/20190403193318.16478-8-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A common use case for HMM mirror is user trying to mirror a range and
before they could program the hardware it get invalidated by some core mm
event. Instead of having user re-try right away to mirror the range
provide a completion mechanism for them to wait for any active
invalidation affecting the range.
This also changes how hmm_range_snapshot() and hmm_range_fault() works by
not relying on vma so that we can drop the mmap_sem when waiting and
lookup the vma again on retry.
Link: http://lkml.kernel.org/r/20190403193318.16478-7-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Minor optimization around hmm_pte_need_fault(). Rename for consistency
between code, comments and documentation. Also improves the comments on
all the possible returns values. Improve the function by returning the
number of populated entries in pfns array.
Link: http://lkml.kernel.org/r/20190403193318.16478-6-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rename for consistency between code, comments and documentation. Also
improves the comments on all the possible returns values. Improve the
function by returning the number of populated entries in pfns array.
Link: http://lkml.kernel.org/r/20190403193318.16478-5-jglisse@redhat.com
Signed-off-by: Jérôme Glisse <jglisse@redhat.com>
Reviewed-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Souptick Joarder <jrdr.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "mm: Generalize putback functions"]
putback_inactive_pages() and move_active_pages_to_lru() are almost
similar, so this patchset merges them ina single function.
This patch (of 4):
The patch moves the calculation from putback_inactive_pages() to
shrink_inactive_list(). This makes putback_inactive_pages() looking more
similar to move_active_pages_to_lru().
To do that, we account activated pages in reclaim_stat::nr_activate.
Since a page may change its LRU type from anon to file cache inside
shrink_page_list() (see ClearPageSwapBacked()), we have to account pages
for the both types. So, nr_activate becomes an array.
Previously we used nr_activate to account PGACTIVATE events, but now we
account them into pgactivate variable (since they are about number of
pages in general, not about sum of hpage_nr_pages).
Link: http://lkml.kernel.org/r/155290127956.31489.3393586616054413298.stgit@localhost.localdomain
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Userfaultfd can be misued to make it easier to exploit existing
use-after-free (and similar) bugs that might otherwise only make a
short window or race condition available. By using userfaultfd to
stall a kernel thread, a malicious program can keep some state that it
wrote, stable for an extended period, which it can then access using an
existing exploit. While it doesn't cause the exploit itself, and while
it's not the only thing that can stall a kernel thread when accessing a
memory location, it's one of the few that never needs privilege.
We can add a flag, allowing userfaultfd to be restricted, so that in
general it won't be useable by arbitrary user programs, but in
environments that require userfaultfd it can be turned back on.
Add a global sysctl knob "vm.unprivileged_userfaultfd" to control
whether userfaultfd is allowed by unprivileged users. When this is
set to zero, only privileged users (root user, or users with the
CAP_SYS_PTRACE capability) will be able to use the userfaultfd
syscalls.
Andrea said:
: The only difference between the bpf sysctl and the userfaultfd sysctl
: this way is that the bpf sysctl adds the CAP_SYS_ADMIN capability
: requirement, while userfaultfd adds the CAP_SYS_PTRACE requirement,
: because the userfaultfd monitor is more likely to need CAP_SYS_PTRACE
: already if it's doing other kind of tracking on processes runtime, in
: addition of userfaultfd. In other words both syscalls works only for
: root, when the two sysctl are opt-in set to 1.
[dgilbert@redhat.com: changelog additions]
[akpm@linux-foundation.org: documentation tweak, per Mike]
Link: http://lkml.kernel.org/r/20190319030722.12441-2-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Suggested-by: Andrea Arcangeli <aarcange@redhat.com>
Suggested-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
Cc: Maya Gokhale <gokhale2@llnl.gov>
Cc: Jerome Glisse <jglisse@redhat.com>
Cc: Pavel Emelyanov <xemul@virtuozzo.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Martin Cracauer <cracauer@cons.org>
Cc: Denis Plotnikov <dplotnikov@virtuozzo.com>
Cc: Marty McFadden <mcfadden8@llnl.gov>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull x86 MDS mitigations from Thomas Gleixner:
"Microarchitectural Data Sampling (MDS) is a hardware vulnerability
which allows unprivileged speculative access to data which is
available in various CPU internal buffers. This new set of misfeatures
has the following CVEs assigned:
CVE-2018-12126 MSBDS Microarchitectural Store Buffer Data Sampling
CVE-2018-12130 MFBDS Microarchitectural Fill Buffer Data Sampling
CVE-2018-12127 MLPDS Microarchitectural Load Port Data Sampling
CVE-2019-11091 MDSUM Microarchitectural Data Sampling Uncacheable Memory
MDS attacks target microarchitectural buffers which speculatively
forward data under certain conditions. Disclosure gadgets can expose
this data via cache side channels.
Contrary to other speculation based vulnerabilities the MDS
vulnerability does not allow the attacker to control the memory target
address. As a consequence the attacks are purely sampling based, but
as demonstrated with the TLBleed attack samples can be postprocessed
successfully.
The mitigation is to flush the microarchitectural buffers on return to
user space and before entering a VM. It's bolted on the VERW
instruction and requires a microcode update. As some of the attacks
exploit data structures shared between hyperthreads, full protection
requires to disable hyperthreading. The kernel does not do that by
default to avoid breaking unattended updates.
The mitigation set comes with documentation for administrators and a
deeper technical view"
* 'x86-mds-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
x86/speculation/mds: Fix documentation typo
Documentation: Correct the possible MDS sysfs values
x86/mds: Add MDSUM variant to the MDS documentation
x86/speculation/mds: Add 'mitigations=' support for MDS
x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off
x86/speculation/mds: Fix comment
x86/speculation/mds: Add SMT warning message
x86/speculation: Move arch_smt_update() call to after mitigation decisions
x86/speculation/mds: Add mds=full,nosmt cmdline option
Documentation: Add MDS vulnerability documentation
Documentation: Move L1TF to separate directory
x86/speculation/mds: Add mitigation mode VMWERV
x86/speculation/mds: Add sysfs reporting for MDS
x86/speculation/mds: Add mitigation control for MDS
x86/speculation/mds: Conditionally clear CPU buffers on idle entry
x86/kvm/vmx: Add MDS protection when L1D Flush is not active
x86/speculation/mds: Clear CPU buffers on exit to user
x86/speculation/mds: Add mds_clear_cpu_buffers()
x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests
x86/speculation/mds: Add BUG_MSBDS_ONLY
...
Add a new compatible for thermal founding on PX30 SoCs.
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
qcs404 uses v1 of the TSENS IP block. Create a fallback DT property
"qcom,tsens-v1" to gather common code
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
'VAL' should be protected by the brackets.
v2:
* Squash the fix for Documentation/bpf/btf.rst
Fixes: 69b693f0ae ("bpf: btf: Introduce BPF Type Format (BTF)")
Signed-off-by: Gary Lin <glin@suse.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Add new backlight bindings for the TI LM3630A dual-string white LED.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Lochnagar is an evaluation and development board for Cirrus
Logic Smart CODEC and Amp devices. It allows the connection of
most Cirrus Logic devices on mini-cards, as well as allowing
connection of various application processor systems to provide a
full evaluation platform. This driver supports the board
controller chip on the Lochnagar board.
Add links to the binding documents for the new sound and hardware
monitor parts of the driver.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Fix the lm3632 dt binding examples as the LCM enable GPIOs
are defined as enable GPIOs per the regulator/lm363x-regulator.txt
bindings document.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Add new compatible string for the HLCD controller on SAM9X60 SoC.
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
STM32 system configuration controller registers needs to be clocked.
Document clock support on stm32-syscon.
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Merge branches 'ib-mfd-arm-leds-5.2', 'ib-mfd-gpio-input-leds-power-5.2', 'ib-mfd-pinctrl-5.2-2' and 'ib-mfd-regulator-5.2', tag 'ib-mfd-arm-net-5.2' into ibs-for-mfd-merged
Immutable branch between MFD, ARM and Net due for the 5.2 merge window
Add OC HW throttle configuration for soctherm in DT.
It is used to describe the OCx throttle events.
Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Add optional property "nvidia,thermtrips".
If present, these trips will be used as HW shutdown trips,
and critical trips will be used as SW shutdown trips.
Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
- Move IRQ register address computation inside macros (Kishon Vijay
Abraham I)
- Separate legacy IRQ and MSI configuration (Kishon Vijay Abraham I)
- Use hwirq, not virq, to get MSI IRQ number offset (Kishon Vijay Abraham
I)
- Squash ks_pcie_handle_msi_irq() into ks_pcie_msi_irq_handler() (Kishon
Vijay Abraham I)
- Add dwc support for platforms with custom MSI controllers (Kishon Vijay
Abraham I)
- Add keystone-specific MSI controller (Kishon Vijay Abraham I)
- Remove dwc host_ops previously used for keystone-specific MSI (Kishon
Vijay Abraham I)
- Skip dwc default MSI init if platform has custom MSI controller (Kishon
Vijay Abraham I)
- Implement .start_link() and .stop_link() for keystone endpoint support
(Kishon Vijay Abraham I)
- Add keystone "reg-names" DT binding (Kishon Vijay Abraham I)
- Squash ks_pcie_dw_host_init() into ks_pcie_add_pcie_port() (Kishon
Vijay Abraham I)
- Get keystone register resources from DT by name, not index (Kishon
Vijay Abraham I)
- Get DT resources in .probe() to prepare for endpoint support (Kishon
Vijay Abraham I)
- Add "ti,syscon-pcie-mode" DT property for PCIe mode configuration
(Kishon Vijay Abraham I)
- Explicitly set keystone to host mode (Kishon Vijay Abraham I)
- Document DT "atu" reg-names requirement for DesignWare core >= 4.80
(Kishon Vijay Abraham I)
- Enable dwc iATU unroll for endpoint mode as well as host mode (Kishon
Vijay Abraham I)
- Add dwc "version" to identify core >= 4.80 for ATU programming (Kishon
Vijay Abraham I)
- Don't build ARM32-specific keystone code on ARM64 (Kishon Vijay Abraham
I)
- Add DT binding for keystone PCIe RC in AM654 SoC (Kishon Vijay Abraham
I)
- Add keystone support for AM654 SoC PCIe RC (Kishon Vijay Abraham I)
- Reset keystone PHYs before enabling them (Kishon Vijay Abraham I)
- Make of_pci_get_max_link_speed() available to endpoint drivers as well
as host drivers (Kishon Vijay Abraham I)
- Add keystone support for DT "max-link-speed" property (Kishon Vijay
Abraham I)
- Add endpoint library support for BAR buffer alignment (Kishon Vijay
Abraham I)
- Make all dw_pcie_ep_ops structs const (Kishon Vijay Abraham I)
- Fix fencepost error in dw_pcie_ep_find_capability() (Kishon Vijay
Abraham I)
- Add dwc hooks for dbi/dbi2 that share the same address space (Kishon
Vijay Abraham I)
- Add keystone support for TI AM654x in endpoint mode (Kishon Vijay
Abraham I)
- Configure designware endpoints to advertise smallest resizable BAR
(1MB) (Kishon Vijay Abraham I)
- Align designware endpoint ATU windows for raising MSIs (Kishon Vijay
Abraham I)
- Add endpoint test support for TI AM654x (Kishon Vijay Abraham I)
- Fix endpoint test test_reg_bar issue (Kishon Vijay Abraham I)
* remotes/lorenzo/pci/keystone:
misc: pci_endpoint_test: Fix test_reg_bar to be updated in pci_endpoint_test
misc: pci_endpoint_test: Add support to test PCI EP in AM654x
PCI: designware-ep: Use aligned ATU window for raising MSI interrupts
PCI: designware-ep: Configure Resizable BAR cap to advertise the smallest size
PCI: keystone: Add support for PCIe EP in AM654x Platforms
dt-bindings: PCI: Add PCI EP DT binding documentation for AM654
PCI: dwc: Add callbacks for accessing dbi2 address space
PCI: dwc: Fix dw_pcie_ep_find_capability() to return correct capability offset
PCI: dwc: Add const qualifier to struct dw_pcie_ep_ops
PCI: endpoint: Add support to specify alignment for buffers allocated to BARs
PCI: keystone: Add support to set the max link speed from DT
PCI: OF: Allow of_pci_get_max_link_speed() to be used by PCI Endpoint drivers
PCI: keystone: Invoke phy_reset() API before enabling PHY
PCI: keystone: Add support for PCIe RC in AM654x Platforms
dt-bindings: PCI: Add PCI RC DT binding documentation for AM654
PCI: keystone: Prevent ARM32 specific code to be compiled for ARM64
PCI: dwc: Fix ATU identification for designware version >= 4.80
PCI: dwc: Enable iATU unroll for endpoint too
dt-bindings: PCI: Document "atu" reg-names
PCI: keystone: Explicitly set the PCIe mode
dt-bindings: PCI: Add dt-binding to configure PCIe mode
PCI: keystone: Move resources initialization to prepare for EP support
PCI: keystone: Use platform_get_resource_byname() to get memory resources
PCI: keystone: Perform host initialization in a single function
dt-bindings: PCI: keystone: Add "reg-names" binding information
PCI: keystone: Cleanup error_irq configuration
PCI: keystone: Add start_link()/stop_link() dw_pcie_ops
PCI: dwc: Remove default MSI initialization for platform specific MSI chips
PCI: dwc: Remove Keystone specific dw_pcie_host_ops
PCI: keystone: Use Keystone specific msi_irq_chip
PCI: dwc: Add support to use non default msi_irq_chip
PCI: keystone: Cleanup ks_pcie_msi_irq_handler()
PCI: keystone: Use hwirq to get the MSI IRQ number offset
PCI: keystone: Add separate functions for configuring MSI and legacy interrupt
PCI: keystone: Cleanup interrupt related macros
# Conflicts:
# drivers/pci/controller/dwc/pcie-designware.h
Pull input updates from Dmitry Torokhov:
"A few new drivers:
- driver for Azoteq IQS550/572/525 touch controllers
- driver for Microchip AT42QT1050 keys
- driver for GPIO controllable vibrators
- support for GT5663 in Goodix driver
... along with miscellaneous driver fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: libps2 - mark expected switch fall-through
Input: qt1050 - add Microchip AT42QT1050 support
Input: add support for Azoteq IQS550/572/525
Input: add a driver for GPIO controllable vibrators
Input: synaptics-rmi4 - fix enum_fmt
Input: synaptics-rmi4 - fill initial format
HID: input: add mapping for KEY_KBD_LAYOUT_NEXT
Input: add KEY_KBD_LAYOUT_NEXT
Input: hyperv-keyboard - add module description
Input: olpc_apsp - depend on ARCH_MMP
Input: sun4i-a10-lradc-keys - add support for A83T
Input: snvs_pwrkey - use dev_pm_set_wake_irq() to simplify code
Input: lpc32xx-key - add clocks property and fix DT binding example
Input: i8042 - signal wakeup from atkbd/psmouse
Input: goodix - add GT5663 CTP support
Input: goodix - add regulators suppot
Input: evdev - use struct_size() in kzalloc() and vzalloc()
Input: edt-ft5x06 - convert to use SPDX identifier
Input: edt-ft5x06 - enable ACPI enumeration
Pull networking fixes from David Miller:
"Fixes all over:
1) Netdev refcnt leak in nf_flow_table, from Taehee Yoo.
2) Fix RCU usage in nf_tables, from Florian Westphal.
3) Fix DSA build when NET_DSA_TAG_BRCM_PREPEND is not set, from Yue
Haibing.
4) Add missing page read/write ops to realtek driver, from Heiner
Kallweit.
5) Endianness fix in qrtr code, from Nicholas Mc Guire.
6) Fix various bugs in DSA_SKB_* macros, from Vladimir Oltean.
7) Several BPF documentation cures, from Quentin Monnet.
8) Fix undefined behavior in narrow load handling of BPF verifier,
from Krzesimir Nowak.
9) DMA ops crash in SGI Seeq driver due to not set netdev parent
device pointer, from Thomas Bogendoerfer.
10) Flow dissector has to disable preemption when invoking BPF
program, from Eric Dumazet"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (48 commits)
net: ethernet: stmmac: dwmac-sun8i: enable support of unicast filtering
net: ethernet: ti: netcp_ethss: fix build
flow_dissector: disable preemption around BPF calls
bonding: fix arp_validate toggling in active-backup mode
net: meson: fixup g12a glue ephy id
net: phy: realtek: Replace phy functions with non-locked version in rtl8211e_config_init()
net: seeq: fix crash caused by not set dev.parent
of_net: Fix missing of_find_device_by_node ref count drop
net: mvpp2: cls: Add missing NETIF_F_NTUPLE flag
bpf: fix undefined behavior in narrow load handling
libbpf: detect supported kernel BTF features and sanitize BTF
selftests: bpf: Add files generated after build to .gitignore
tools: bpf: synchronise BPF UAPI header with tools
bpf: fix minor issues in documentation for BPF helpers.
bpf: fix recurring typo in documentation for BPF helpers
bpf: fix script for generating man page on BPF helpers
bpf: add various test cases for backward jumps
net: dccp : proto: remove Unneeded variable "err"
net: dsa: Remove the now unused DSA_SKB_CB_COPY() macro
net: dsa: Remove dangerous DSA_SKB_CLONE() macro
...
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Merge tag 'linux-watchdog-5.2-rc1' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- a new watchdog driver for the ROHM BD70528 watchdog block
- a new watchdog driver for the i.MX system controller watchdog
- conversions to use device managed functions and other improvements
- refactor watchdog_init_timeout
- make watchdog core configurable as module
- pretimeout governors improvements
- a lot of other fixes
* tag 'linux-watchdog-5.2-rc1' of git://www.linux-watchdog.org/linux-watchdog: (114 commits)
watchdog: Enforce that at least one pretimeout governor is enabled
watchdog: stm32: add dynamic prescaler support
watchdog: Improve Kconfig entry ordering and dependencies
watchdog: npcm: Enable modular builds
watchdog: Make watchdog core configurable as module
watchdog: Move pretimeout governor configuration up
watchdog: Use depends instead of select for pretimeout governors
watchdog: rtd119x: drop unused module.h include
watchdog: intel_scu: make it explicitly non-modular
watchdog: coh901327: make it explicitly non-modular
watchdog: ziirave_wdt: drop warning after calling watchdog_init_timeout
watchdog: xen_wdt: drop warning after calling watchdog_init_timeout
watchdog: stm32_iwdg: drop warning after calling watchdog_init_timeout
watchdog: st_lpc_wdt: drop warning after calling watchdog_init_timeout
watchdog: sp5100_tco: drop warning after calling watchdog_init_timeout
watchdog: renesas_wdt: drop warning after calling watchdog_init_timeout
watchdog: nic7018_wdt: drop warning after calling watchdog_init_timeout
watchdog: ni903x_wdt: drop warning after calling watchdog_init_timeout
watchdog: imx_sc_wdt: drop warning after calling watchdog_init_timeout
watchdog: i6300esb: drop warning after calling watchdog_init_timeout
...
Add device tree binding information for slg51000 regulator driver.
Example bindings for SLG51000 are added.
Signed-off-by: Eric Jeong <eric.jeong.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
In ACPI it is possible to make references to device objects only,
not to other objects inside a device.
In practice this means that hierarchical data extension targets
must be in parentheses to make them strings, or an ACPICA warning
will be produced.
Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[ rjw: Changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Use tabs to indent the graph documentation, not spaces.
Fixes: f2dde1ed0f ("Documentation: ACPI: move dsd/graph.txt to firmware-guide/acpi and convert to reST")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
MTD core changes:
- New AFS partition parser
- Update MAINTAINERS entry
- Use of fall-throughs markers
NAND core changes:
- Support having the bad block markers in either the first, second or
last page of a block. The combination of all three location is now
possible.
- Constification of NAND_OP_PARSER(_PATTERN) elements.
- Generic NAND DT bindings changed to yaml format (can be used to
check the proposed bindings. First platform to be fully supported:
sunxi.
- Stopped using several legacy hooks.
- Preparation to use the generic NAND layer with the addition of
several helpers and the removal of the struct nand_chip from generic
functions.
- Kconfig cleanup to prepare the introduction of external ECC engines
support.
- Fallthrough comments.
- Introduction of the SPI-mem dirmap API for SPI-NAND devices.
Raw NAND controller drivers changes:
- nandsim:
* Switch to ->exec-op().
- meson:
* Misc cleanups and fixes.
* New OOB layout.
- Sunxi:
* A23/A33 NAND DMA support.
- Ingenic:
* Full reorganization and cleanup.
* Clear separation between NAND controller and ECC engine.
* Support JZ4740 an JZ4725B.
- Denali:
* Clear controller/chip separation.
* ->exec_op() migration.
* Various cleanups.
- fsl_elbc:
* Enable software ECC support.
- Atmel:
* Sam9x60 support.
- GPMI:
* Introduce the GPMI_IS_MXS() macro.
- Various trivial/spelling/coding style fixes.
SPI NOR core changes:
- Print all JEDEC ID bytes on error
- Fix comment of spi_nor_find_best_erase_type()
- Add region locking flags for s25fl512s
SPI NOR controller drivers changes:
- intel-spi:
* Avoid crossing 4K address boundary on read/write
* Add support for Intel Comet Lake SPI serial flash
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Merge tag 'mtd/for-5.2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull MTD updates from Richard Weinberger:
"MTD core changes:
- New AFS partition parser
- Update MAINTAINERS entry
- Use of fall-throughs markers
NAND core changes:
- Support having the bad block markers in either the first, second or
last page of a block. The combination of all three location is now
possible.
- Constification of NAND_OP_PARSER(_PATTERN) elements.
- Generic NAND DT bindings changed to yaml format (can be used to
check the proposed bindings. First platform to be fully supported:
sunxi.
- Stopped using several legacy hooks.
- Preparation to use the generic NAND layer with the addition of
several helpers and the removal of the struct nand_chip from
generic functions.
- Kconfig cleanup to prepare the introduction of external ECC engines
support.
- Fallthrough comments.
- Introduction of the SPI-mem dirmap API for SPI-NAND devices.
Raw NAND controller drivers changes:
- nandsim:
- Switch to ->exec-op().
- meson:
- Misc cleanups and fixes.
- New OOB layout.
- Sunxi:
- A23/A33 NAND DMA support.
- Ingenic:
- Full reorganization and cleanup.
- Clear separation between NAND controller and ECC engine.
- Support JZ4740 an JZ4725B.
- Denali:
- Clear controller/chip separation.
- ->exec_op() migration.
- Various cleanups.
- fsl_elbc:
- Enable software ECC support.
- Atmel:
- Sam9x60 support.
- GPMI:
- Introduce the GPMI_IS_MXS() macro.
- Various trivial/spelling/coding style fixes.
SPI NOR core changes:
- Print all JEDEC ID bytes on error
- Fix comment of spi_nor_find_best_erase_type()
- Add region locking flags for s25fl512s
SPI NOR controller drivers changes:
- intel-spi:
- Avoid crossing 4K address boundary on read/write
- Add support for Intel Comet Lake SPI serial flash"
* tag 'mtd/for-5.2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (120 commits)
mtd: part: fix incorrect format specifier for an unsigned long long
mtd: lpddr_cmds: Mark expected switch fall-through
mtd: phram: Mark expected switch fall-throughs
mtd: cfi_cmdset_0002: Mark expected switch fall-throughs
mtd: cfi_util: mark expected switch fall-throughs
MAINTAINERS: MTD Git repository is hosted on kernel.org
MAINTAINERS: Update jffs2 entry
mtd: afs: add v2 partition parsing
mtd: afs: factor the IIS read into partition parser
mtd: afs: factor footer parsing into the v1 part parsing
mtd: factor out v1 partition parsing
mtd: afs: simplify partition detection
mtd: afs: simplify partition parsing
mtd: partitions: Add OF support to AFS partitions
mtd: partitions: Add AFS partitions DT bindings
mtd: afs: Move AFS partition parser to parsers subdir
mtd: maps: Make uclinux_ram_map static
mtd: maps: Allow MTD_PHYSMAP with MTD_RAM
MAINTAINERS: Add myself as MTD maintainer
MAINTAINERS: Remove my name from the MTD and NAND entries
...
CrOS EC:
- Add EC host command support using rpmsg
- Add new CrOS USB PD logging driver
- Transfer spi messages at high priority
- Add support to trace CrOS EC commands
- Minor fixes and cleanups in protocol and debugfs
Wilco EC:
- Standardize Wilco EC mailbox interface
- Add h1_gpio status to debugfs
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Merge tag 'tag-chrome-platform-for-v5.2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform updates from Benson Leung:
"CrOS EC:
- Add EC host command support using rpmsg
- Add new CrOS USB PD logging driver
- Transfer spi messages at high priority
- Add support to trace CrOS EC commands
- Minor fixes and cleanups in protocol and debugfs
Wilco EC:
- Standardize Wilco EC mailbox interface
- Add h1_gpio status to debugfs"
* tag 'tag-chrome-platform-for-v5.2' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: cros_ec_proto: Add trace event to trace EC commands
platform/chrome: cros_ec_debugfs: Use cros_ec_cmd_xfer_status helper
platform/chrome: cros_ec: Add EC host command support using rpmsg
platform/chrome: wilco_ec: Add h1_gpio status to debugfs
platform/chrome: wilco_ec: Standardize mailbox interface
platform/chrome: cros_ec_proto: check for NULL transfer function
platform/chrome: Add CrOS USB PD logging driver
platform/chrome: cros_ec_spi: Transfer messages at high priority
platform/chrome: cros_ec_debugfs: no need to check return value of debugfs_create functions
platform/chrome: cros_ec_debugfs: Remove dev_warn when console log is not supported
Core changes:
- The gpiolib MMIO driver has been enhanced to handle two direction
registers, i.e. one register to set lines as input and one register
to set lines as output. It turns out some silicon engineer thinks
the ability to configure a line as input and output at the same
time makes sense, this can be debated but includes a lot of analog
electronics reasoning, and the registers are there and need to
be handled consistently. Unsurprisingly, we enforce the lines to
be either inputs or outputs in such schemes.
- Send in the proper argument value to .set_config() dispatched to
the pin control subsystem. Nobody used it before, now someone
does, so fix it to work as expected.
- The ACPI gpiolib portions can now handle pin bias setting (pull up
or pull down). This has been in the ACPI spec for years and we
finally have it properly integrated with Linux GPIOs. It was based
on an observation from Andy Schevchenko that Thomas Petazzoni's
changes to the core for biasing the PCA950x GPIO expander actually
happen to fit hand-in-glove with what the ACPI core needed.
Such nice synergies happen sometimes.
New drivers:
- A new driver for the Mellanox BlueField GPIO controller. This is
using 64bit MMIO registers and can configure lines as inputs
and outputs at the same time and after improving the MMIO library
we handle it just fine. Interesting.
- A new IXP4xx proper gpiochip driver with hierarchical interrupts
should be coming in from the ARM SoC tree as well.
Driver enhancements:
- The PCA053x driver handles the CAT9554 GPIO expander.
- The PCA053x driver handles the NXP PCAL6416 GPIO expander.
- Wake-up support on PCA053x GPIO lines.
- OMAP now does a nice asynchronous IRQ handling on wake-ups by
letting everything wake up on edges, and this makes runtime PM
work as expected too.
Misc:
- Several cleanups such as devres fixes.
- Get rid of some languager comstructs that cause problems when
compiling with LLVMs clang.
- Documentation review and update.
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Merge tag 'gpio-v5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull gpio updates from Linus Walleij:
"This is the bulk of the GPIO changes for the v5.2 kernel cycle. A bit
later than usual because I was ironing out my own mistakes. I'm
holding some stuff back for the next kernel as a result, and this
should be a healthy and well tested batch.
Core changes:
- The gpiolib MMIO driver has been enhanced to handle two direction
registers, i.e. one register to set lines as input and one register
to set lines as output. It turns out some silicon engineer thinks
the ability to configure a line as input and output at the same
time makes sense, this can be debated but includes a lot of analog
electronics reasoning, and the registers are there and need to be
handled consistently. Unsurprisingly, we enforce the lines to be
either inputs or outputs in such schemes.
- Send in the proper argument value to .set_config() dispatched to
the pin control subsystem. Nobody used it before, now someone does,
so fix it to work as expected.
- The ACPI gpiolib portions can now handle pin bias setting (pull up
or pull down). This has been in the ACPI spec for years and we
finally have it properly integrated with Linux GPIOs. It was based
on an observation from Andy Schevchenko that Thomas Petazzoni's
changes to the core for biasing the PCA950x GPIO expander actually
happen to fit hand-in-glove with what the ACPI core needed. Such
nice synergies happen sometimes.
New drivers:
- A new driver for the Mellanox BlueField GPIO controller. This is
using 64bit MMIO registers and can configure lines as inputs and
outputs at the same time and after improving the MMIO library we
handle it just fine. Interesting.
- A new IXP4xx proper gpiochip driver with hierarchical interrupts
should be coming in from the ARM SoC tree as well.
Driver enhancements:
- The PCA053x driver handles the CAT9554 GPIO expander.
- The PCA053x driver handles the NXP PCAL6416 GPIO expander.
- Wake-up support on PCA053x GPIO lines.
- OMAP now does a nice asynchronous IRQ handling on wake-ups by
letting everything wake up on edges, and this makes runtime PM work
as expected too.
Misc:
- Several cleanups such as devres fixes.
- Get rid of some languager comstructs that cause problems when
compiling with LLVMs clang.
- Documentation review and update"
* tag 'gpio-v5.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (85 commits)
gpio: Update documentation
docs: gpio: convert docs to ReST and rename to *.rst
gpio: sch: Remove write-only core_base
gpio: pxa: Make two symbols static
gpiolib: acpi: Respect pin bias setting
gpiolib: acpi: Add acpi_gpio_update_gpiod_lookup_flags() helper
gpiolib: acpi: Set pin value, based on bias, more accurately
gpiolib: acpi: Change type of dflags
gpiolib: Introduce GPIO_LOOKUP_FLAGS_DEFAULT
gpiolib: Make use of enum gpio_lookup_flags consistent
gpiolib: Indent entry values of enum gpio_lookup_flags
gpio: pca953x: add support for pca6416
dt-bindings: gpio: pca953x: document the nxp,pca6416
gpio: pca953x: add pcal6416 to the of_device_id table
gpio: gpio-omap: Remove conditional pm_runtime handling for GPIO interrupts
gpio: gpio-omap: configure edge detection for level IRQs for idle wakeup
tracing: stop making gpio tracing configurable
gpio: pca953x: Configure wake-up path when wake-up is enabled
gpio: of: Optimize quirk checks
gpio: mmio: Drop bgpio_dir_inverted
...
Eric Auger
Jacek Anaszewski
Mauro Carvalho Chehab
Maxime Jourdan
Guo Ren
Xingyu Chen
Mark Brown
David S. Miller
Keerthy
Sean Nyekjaer
Dan Murphy
Linus Torvalds
Hans Verkuil
Stanimir Varbanov
Marc Gonzalez
Masahisa Kojima
Shuming Fan
Maxime Ripard
Peter Zijlstra
Yuyang Du
Chris Down
Randy Dunlap
Tejun Heo
Miklos Szeredi
David Howells
Odin Ugedal
Ard Biesheuvel
Eric Biggers
Chen-Yu Tsai
Hans Verkuil
Michael Tretter
Pawel Osciak
Philipp Zabel
Geert Uytterhoeven
Florian Fainelli
Steve Longerbeam
Paul E. McKenney
Zhenzhong Duan
Joel Fernandes (Google)
Clément Péron
Rob Herring
Luca Ceresoli
Linus Walleij
Przemyslaw Gaj
Sebastian Andrzej Siewior
Christian Mauderer
Jonathan Corbet
Ira Weiny
Marc Zyngier
Lubomir Rintel
Will Deacon
Len Brown
Jakub Kicinski
Kamal Dasu
Robin Murphy
Paul Walmsley
Charles Keepax
Masanari Iida
Cengiz Can
Oliver Neukum
Weitao Hou
Nick Desaulniers
S.j. Wang
Leonard Crestez
Feng Tang
Heiner Kallweit
Yash Shah
Olof Johansson
Jerome Brunet
Andy Lutomirski
Paolo Bonzini
Waiman Long
Tom Burkart
Aaro Koskinen
Tri Vo
Ian Kent
Andy Shevchenko
Dan Williams
Suren Baghdasaryan
Jérôme Glisse
Kirill Tkhai
Peter Xu
Elaine Zhang
Jean-Francois Dagenais
Talel Shenhar
Amit Kucheria
Gary Lin
Brian Masney
Claudiu Beznea
Fabrice Gasnier
Lee Jones
Wei Ni
Bjorn Helgaas
Eric Jeong
Sakari Ailus