Adding the document to the usb index file and fixing a few
references. Also, exposing the code examples as "literal
blocks" so they are more easy to read.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
- Add the HSIC support for imx
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Merge tag 'usb-ci-v4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb into usb-next
Peter writes:
- Improve the over-current handling for imx
- Add the HSIC support for imx
* tag 'usb-ci-v4.21-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/peter.chen/usb:
usb: chipidea: imx: allow to configure oc polarity on i.MX25
usb: chipidea: imx: Warn if oc polarity isn't specified
usb: chipidea: imx: support configuring for active low oc signal
doc: usb: ci-hdrc-usb2: Add pinctrl properties for HSIC pin groups
usb: chipidea: host: override ehci->hub_control
usb: chipidea: imx: add HSIC support
usb: chipidea: add flag for imx hsic implementation
So it looks like folks are interested in dwc3 again. Almost 64% of the
changes are in dwc3 this time around with some other bits in gadget
functions and dwc2.
There are two important parts here: a. removal of the waitqueue from
dwc3's dequeue implementation, which will guarantee that gadget
functions can dequeue from any context and; b. better method for
starting isochronous transfers to avoid, as much as possible, missed
isoc frames.
Apart from these, we have the usual set of non-critical fixes and new
features all over the place.
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Merge tag 'usb-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next
Felipe writes:
USB changes for v4.21
So it looks like folks are interested in dwc3 again. Almost 64% of the
changes are in dwc3 this time around with some other bits in gadget
functions and dwc2.
There are two important parts here: a. removal of the waitqueue from
dwc3's dequeue implementation, which will guarantee that gadget
functions can dequeue from any context and; b. better method for
starting isochronous transfers to avoid, as much as possible, missed
isoc frames.
Apart from these, we have the usual set of non-critical fixes and new
features all over the place.
* tag 'usb-for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb: (56 commits)
usb: dwc2: Fix disable all EP's on disconnect
usb: dwc3: gadget: Disable CSP for stream OUT ep
usb: dwc2: disable power_down on Amlogic devices
Revert "usb: dwc3: pci: Use devm functions to get the phy GPIOs"
USB: gadget: udc: s3c2410_udc: convert to DEFINE_SHOW_ATTRIBUTE
usb: mtu3: fix dbginfo in qmu_tx_zlp_error_handler
usb: dwc3: trace: add missing break statement to make compiler happy
usb: dwc3: gadget: Report isoc transfer frame number
usb: gadget: Introduce frame_number to usb_request
usb: renesas_usbhs: Use SIMPLE_DEV_PM_OPS macro
usb: renesas_usbhs: Remove dummy runtime PM callbacks
usb: dwc2: host: use hrtimer for NAK retries
usb: mtu3: clear SOFTCONN when clear USB3_EN if work as HS mode
usb: mtu3: enable SETUPENDISR interrupt
usb: mtu3: fix the issue about SetFeature(U1/U2_Enable)
usb: mtu3: enable hardware remote wakeup from L1 automatically
usb: mtu3: remove QMU checksum
usb/mtu3: power down device ip at setup
usb: dwc2: Disable power down feature on Samsung SoCs
usb: dwc3: Correct the logic for checking TRB full in __dwc3_prepare_one_trb()
...
*) Change phy set_mode ops to take both mode and setmode as arguments
*) Add phy_configure() and phy_validate() API's mostly used for MIPI D-PHY
*) Add helpers to get default values of parameters define in MIPI D-PHY spec
*) Add driver for TI's CPSW Port PHY Interface Mode selection
*) Add driver for Cadence Sierra PHY used with USB and PCIe
*) Add driver for Freescale i.MX8MQ USB3 PHY
*) Fixes QMP PHY bindings to allow the clocks provided by the PHY to be
pointed at in device tree
*) Fix for using fully specified regions (in device tree) for configuring
the second lane in dual lane PHYs in QMP PHY
*) Add support for Allwinner H6 USB2 PHY in phy-sun4i-usb driver
*) Update phy-rcar-gen3-usb driver to follow the hardware manual
*) Add support for fine grained power management in mapphone-mdm6600 driver
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Merge tag 'phy-for-4.21_v1' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-next
Kishon writes:
phy: for 4.21
*) Change phy set_mode ops to take both mode and setmode as arguments
*) Add phy_configure() and phy_validate() API's mostly used for MIPI D-PHY
*) Add helpers to get default values of parameters define in MIPI D-PHY spec
*) Add driver for TI's CPSW Port PHY Interface Mode selection
*) Add driver for Cadence Sierra PHY used with USB and PCIe
*) Add driver for Freescale i.MX8MQ USB3 PHY
*) Fixes QMP PHY bindings to allow the clocks provided by the PHY to be
pointed at in device tree
*) Fix for using fully specified regions (in device tree) for configuring
the second lane in dual lane PHYs in QMP PHY
*) Add support for Allwinner H6 USB2 PHY in phy-sun4i-usb driver
*) Update phy-rcar-gen3-usb driver to follow the hardware manual
*) Add support for fine grained power management in mapphone-mdm6600 driver
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
* tag 'phy-for-4.21_v1' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy: (30 commits)
phy: qcom-qmp: Expose provided clocks to DT
dt-bindings: phy-qcom-qmp: Move #clock-cells to child
phy: qcom-qmp: Utilize fully-specified DT registers
dt-bindings: phy-qcom-qmp: Fix register underspecification
phy: ti: fix semicolon.cocci warnings
phy: dphy: Add configuration helpers
phy: Add MIPI D-PHY configuration options
phy: Add configuration interface
phy: Add MIPI D-PHY mode
phy: add driver for Freescale i.MX8MQ USB3 PHY
dt-bindings: phy: add binding for Freescale i.MX8MQ USB3 PHY
phy: Use of_node_name_eq for node name comparisons
net: ethernet: ti: cpsw: add support for port interface mode selection phy
dt-bindings: net: ti: cpsw: switch to use phy-gmii-sel phy
phy: ti: introduce phy-gmii-sel driver
dt-bindings: phy: add cpsw port interface mode selection phy bindings
phy: mvebu-cp110-comphy: fix spelling in structure name
phy: mapphone-mdm6600: Improve phy related runtime PM calls
phy: renesas: rcar-gen3-usb2: follow the hardware manual procedure
phy: cadence: Add driver for Sierra PHY
...
The phy-qcom-qmp bindings specified #clock-cells as 1. This was never used
because of_clk_add_provider() was never called, so there was no way anybody
could reference these clocks from DT. Furthermore, even if they could be
accessed, the bindings never specified what should go in that additional
cell.
Fix these incomplete and broken bindings. Move the #clock-cells into the
child node, since that is the actual clock provider, and not all
instances of qcom-qmp-phy are clock providers. Also set #clock-cells to
zero, since there's nothing to pass to it.
Signed-off-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Add register regions for the second lane of dual-lane nodes.
This additional specification is needed so that the driver can stop
reaching beyond the tx and rx register allocations to get at the
second lane registers in a dual-lane PHY.
While in there, document #clock-cells as optional for PHYs that don't
provide a pipe clock. Also, document the pcs_misc register region, which
was being quietly supplied and used.
Signed-off-by: Evan Green <evgreen@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This adds the binding for the USB3 PHY found on the i.MX8M SoC.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
The cpsw-phy-sel driver was replaced with new PHY driver phy-gmii-sel, so
deprecate cpsw-phy-sel bindings and update CPSW binding to use phy-gmii-sel
PHY bindings.
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Add DT binding documentation for Sierra PHY. The PHY supports
a number of different protocols, including PCIe and USB.
The PHY lanes may be configured as single or multi-lane links.
Each link is treated as a separate sub-node. For example, if
there are 4 lanes in total the first 2 might be configured as
a multi-lane PCIe link while the other two are single lane
USB links, and in this case there would be 3 sub-nodes.
There are two resets for the PHY block (one for APB register
access, one for the PHY link) and separate resets for each
link. For multi-lane links, the reset corresponds to the
reset line on the master lane, the resets on other lanes
have no effect.
Signed-off-by: Alan Douglas <adouglas@cadence.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
The USB2.0 PHY on Allwinner H6 is similar to the ones on the ones on
older SoCs, but with holes in PHY number (USB1 and USB2 are missing, in
which USB1 is a USB3 PHY).
Add binding for the PHY.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
The status quo on i.MX6 is that if "over-current-active-high" is
specified in the device tree this is configured as expected. If
the property is missing polarity isn't changed and so the
polarity is kept as setup by the bootloader. Reset default is
active high, so active low can only be used with help by the
bootloader. On i.MX7 it is similar, but there disabling of
over current detection has a similar inconsistency.
This patch introduces a new property that allows to explicitly
configure for active low over current detection and consistently
sets this up. In the absence of an explicit configuration the
bit is kept as is. On i.MX7 over current detection is used unless
disabled in the device tree.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
For USB HSIC, the data and strobe pin needs to be pulled down
at default, we consider it as "idle" state. When the USB host
is ready to be used, the strobe pin needs to be pulled up,
we consider it as "active" state.
Signed-off-by: Peter Chen <peter.chen@nxp.com>
Pull networking fixes from David Miller:
"A decent batch of fixes here. I'd say about half are for problems that
have existed for a while, and half are for new regressions added in
the 4.20 merge window.
1) Fix 10G SFP phy module detection in mvpp2, from Baruch Siach.
2) Revert bogus emac driver change, from Benjamin Herrenschmidt.
3) Handle BPF exported data structure with pointers when building
32-bit userland, from Daniel Borkmann.
4) Memory leak fix in act_police, from Davide Caratti.
5) Check RX checksum offload in RX descriptors properly in aquantia
driver, from Dmitry Bogdanov.
6) SKB unlink fix in various spots, from Edward Cree.
7) ndo_dflt_fdb_dump() only works with ethernet, enforce this, from
Eric Dumazet.
8) Fix FID leak in mlxsw driver, from Ido Schimmel.
9) IOTLB locking fix in vhost, from Jean-Philippe Brucker.
10) Fix SKB truesize accounting in ipv4/ipv6/netfilter frag memory
limits otherwise namespace exit can hang. From Jiri Wiesner.
11) Address block parsing length fixes in x25 from Martin Schiller.
12) IRQ and ring accounting fixes in bnxt_en, from Michael Chan.
13) For tun interfaces, only iface delete works with rtnl ops, enforce
this by disallowing add. From Nicolas Dichtel.
14) Use after free in liquidio, from Pan Bian.
15) Fix SKB use after passing to netif_receive_skb(), from Prashant
Bhole.
16) Static key accounting and other fixes in XPS from Sabrina Dubroca.
17) Partially initialized flow key passed to ip6_route_output(), from
Shmulik Ladkani.
18) Fix RTNL deadlock during reset in ibmvnic driver, from Thomas
Falcon.
19) Several small TCP fixes (off-by-one on window probe abort, NULL
deref in tail loss probe, SNMP mis-estimations) from Yuchung
Cheng"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (93 commits)
net/sched: cls_flower: Reject duplicated rules also under skip_sw
bnxt_en: Fix _bnxt_get_max_rings() for 57500 chips.
bnxt_en: Fix NQ/CP rings accounting on the new 57500 chips.
bnxt_en: Keep track of reserved IRQs.
bnxt_en: Fix CNP CoS queue regression.
net/mlx4_core: Correctly set PFC param if global pause is turned off.
Revert "net/ibm/emac: wrong bit is used for STA control"
neighbour: Avoid writing before skb->head in neigh_hh_output()
ipv6: Check available headroom in ip6_xmit() even without options
tcp: lack of available data can also cause TSO defer
ipv6: sr: properly initialize flowi6 prior passing to ip6_route_output
mlxsw: spectrum_switchdev: Fix VLAN device deletion via ioctl
mlxsw: spectrum_router: Relax GRE decap matching check
mlxsw: spectrum_switchdev: Avoid leaking FID's reference count
mlxsw: spectrum_nve: Remove easily triggerable warnings
ipv4: ipv6: netfilter: Adjust the frag mem limit when truesize changes
sctp: frag_point sanity check
tcp: fix NULL ref in tail loss probe
tcp: Do not underestimate rwnd_limited
net: use skb_list_del_init() to remove from RX sublists
...
- Introduce protected-clock DT binding to fix breakage on qcom sdm845-mtp
boards where the qspi clks introduced this merge window cause the
firmware on those boards to take down the system if we try to read
the clk registers
- Fix a couple off-by-one errors found by Dan Carpenter
- Handle failure in zynq fixed factor clk driver to avoid using
uninitialized data
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A few clk driver fixes this time:
- Introduce protected-clock DT binding to fix breakage on qcom
sdm845-mtp boards where the qspi clks introduced this merge window
cause the firmware on those boards to take down the system if we
try to read the clk registers
- Fix a couple off-by-one errors found by Dan Carpenter
- Handle failure in zynq fixed factor clk driver to avoid using
uninitialized data"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: zynqmp: Off by one in zynqmp_is_valid_clock()
clk: mmp: Off by one in mmp_clk_add()
clk: mvebu: Off by one bugs in cp110_of_clk_get()
arm64: dts: qcom: sdm845-mtp: Mark protected gcc clocks
clk: qcom: Support 'protected-clocks' property
dt-bindings: clk: Introduce 'protected-clocks' property
clk: zynqmp: handle fixed factor param query error
Pull input updates from Dmitry Torokhov:
"Mostly new IDs for Elan/Synaptics touchpads, plus a few small fixups"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: omap-keypad - fix keyboard debounce configuration
Input: xpad - quirk all PDP Xbox One gamepads
Input: synaptics - enable SMBus for HP 15-ay000
Input: synaptics - add PNP ID for ThinkPad P50 to SMBus
Input: elan_i2c - add ACPI ID for Lenovo IdeaPad 330-15ARR
Input: elan_i2c - add support for ELAN0621 touchpad
Input: hyper-v - fix wakeup from suspend-to-idle
Input: atkbd - clean up indentation issue
Input: st1232 - convert to SPDX identifiers
Input: migor_ts - convert to SPDX identifiers
Input: dt-bindings - fix a typo in file input-reset.txt
Input: cros_ec_keyb - fix button/switch capability reports
Input: elan_i2c - add ELAN0620 to the ACPI table
Input: matrix_keypad - check for errors from of_get_named_gpio()
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Merge tag 'media/v4.20-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
- Revert a dt-bindings patch whose driver didn't make for 4.20
- fix a kernel oops at vicodec driver
- fix a frame overflow at gspca with was causing regressions on some
cameras, making them to not work
- use the proper type for wait_queue head
- make media request API compatible with 32-bit userspace on 64-bit
kernel
- fix a regression on Kernel 4.19 at dvb-pll
- don't use SPDX headers yet for GFDL
* tag 'media/v4.20-4' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
media: mediactl docs: Fix licensing message
media: dvb-pll: don't re-validate tuner frequencies
media: dvb-pll: fix tuner frequency ranges
media: Revert "media: dt-bindings: Document the Rockchip VPU bindings"
media: gspca: fix frame overflow error
media: vicodec: fix memchr() kernel oops
media: cedrus: add action item to the TODO
media: media-request: Add compat ioctl
media: Use wait_queue_head_t for media_request
Pull STIBP fallout fixes from Thomas Gleixner:
"The performance destruction department finally got it's act together
and came up with a cure for the STIPB regression:
- Provide a command line option to control the spectre v2 user space
mitigations. Default is either seccomp or prctl (if seccomp is
disabled in Kconfig). prctl allows mitigation opt-in, seccomp
enables the migitation for sandboxed processes.
- Rework the code to handle the conditional STIBP/IBPB control and
remove the now unused ptrace_may_access_sched() optimization
attempt
- Disable STIBP automatically when SMT is disabled
- Optimize the switch_to() logic to avoid MSR writes and invocations
of __switch_to_xtra().
- Make the asynchronous speculation TIF updates synchronous to
prevent stale mitigation state.
As a general cleanup this also makes retpoline directly depend on
compiler support and removes the 'minimal retpoline' option which just
pretended to provide some form of security while providing none"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
x86/speculation: Provide IBPB always command line options
x86/speculation: Add seccomp Spectre v2 user space protection mode
x86/speculation: Enable prctl mode for spectre_v2_user
x86/speculation: Add prctl() control for indirect branch speculation
x86/speculation: Prepare arch_smt_update() for PRCTL mode
x86/speculation: Prevent stale SPEC_CTRL msr content
x86/speculation: Split out TIF update
ptrace: Remove unused ptrace_may_access_sched() and MODE_IBRS
x86/speculation: Prepare for conditional IBPB in switch_mm()
x86/speculation: Avoid __switch_to_xtra() calls
x86/process: Consolidate and simplify switch_to_xtra() code
x86/speculation: Prepare for per task indirect branch speculation control
x86/speculation: Add command line control for indirect branch speculation
x86/speculation: Unify conditional spectre v2 print functions
x86/speculataion: Mark command line parser data __initdata
x86/speculation: Mark string arrays const correctly
x86/speculation: Reorder the spec_v2 code
x86/l1tf: Show actual SMT state
x86/speculation: Rework SMT state change
sched/smt: Expose sched_smt_present static key
...
Merge misc fixes from Andrew Morton:
"31 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (31 commits)
ocfs2: fix potential use after free
mm/khugepaged: fix the xas_create_range() error path
mm/khugepaged: collapse_shmem() do not crash on Compound
mm/khugepaged: collapse_shmem() without freezing new_page
mm/khugepaged: minor reorderings in collapse_shmem()
mm/khugepaged: collapse_shmem() remember to clear holes
mm/khugepaged: fix crashes due to misaccounted holes
mm/khugepaged: collapse_shmem() stop if punched or truncated
mm/huge_memory: fix lockdep complaint on 32-bit i_size_read()
mm/huge_memory: splitting set mapping+index before unfreeze
mm/huge_memory: rename freeze_page() to unmap_page()
initramfs: clean old path before creating a hardlink
kernel/kcov.c: mark funcs in __sanitizer_cov_trace_pc() as notrace
psi: make disabling/enabling easier for vendor kernels
proc: fixup map_files test on arm
debugobjects: avoid recursive calls with kmemleak
userfaultfd: shmem: UFFDIO_COPY: set the page dirty if VM_WRITE is not set
userfaultfd: shmem: add i_size checks
userfaultfd: shmem/hugetlbfs: only allow to register VM_MAYWRITE vmas
userfaultfd: shmem: allocate anonymous memory for MAP_PRIVATE shmem
...
While introducing the DSA tagging protocol attribute, it was added to the DSA
slave network devices, but those actually see untagged traffic (that is their
whole purpose). Correct this mistake by putting the tagging sysfs attribute
under the DSA master network device where this is the information that we need.
While at it, also correct the sysfs documentation mistake that missed the
"dsa/" directory component of the attribute.
Fixes: 98cdb48071 ("net: dsa: Expose tagging protocol to user-space")
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>
Mel Gorman reports a hackbench regression with psi that would prohibit
shipping the suse kernel with it default-enabled, but he'd still like
users to be able to opt in at little to no cost to others.
With the current combination of CONFIG_PSI and the psi_disabled bool set
from the commandline, this is a challenge. Do the following things to
make it easier:
1. Add a config option CONFIG_PSI_DEFAULT_DISABLED that allows distros
to enable CONFIG_PSI in their kernel but leave the feature disabled
unless a user requests it at boot-time.
To avoid double negatives, rename psi_disabled= to psi=.
2. Make psi_disabled a static branch to eliminate any branch costs
when the feature is disabled.
In terms of numbers before and after this patch, Mel says:
: The following is a comparision using CONFIG_PSI=n as a baseline against
: your patch and a vanilla kernel
:
: 4.20.0-rc4 4.20.0-rc4 4.20.0-rc4
: kconfigdisable-v1r1 vanilla psidisable-v1r1
: Amean 1 1.3100 ( 0.00%) 1.3923 ( -6.28%) 1.3427 ( -2.49%)
: Amean 3 3.8860 ( 0.00%) 4.1230 * -6.10%* 3.8860 ( -0.00%)
: Amean 5 6.8847 ( 0.00%) 8.0390 * -16.77%* 6.7727 ( 1.63%)
: Amean 7 9.9310 ( 0.00%) 10.8367 * -9.12%* 9.9910 ( -0.60%)
: Amean 12 16.6577 ( 0.00%) 18.2363 * -9.48%* 17.1083 ( -2.71%)
: Amean 18 26.5133 ( 0.00%) 27.8833 * -5.17%* 25.7663 ( 2.82%)
: Amean 24 34.3003 ( 0.00%) 34.6830 ( -1.12%) 32.0450 ( 6.58%)
: Amean 30 40.0063 ( 0.00%) 40.5800 ( -1.43%) 41.5087 ( -3.76%)
: Amean 32 40.1407 ( 0.00%) 41.2273 ( -2.71%) 39.9417 ( 0.50%)
:
: It's showing that the vanilla kernel takes a hit (as the bisection
: indicated it would) and that disabling PSI by default is reasonably
: close in terms of performance for this particular workload on this
: particular machine so;
Link: http://lkml.kernel.org/r/20181127165329.GA29728@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Tested-by: Mel Gorman <mgorman@techsingularity.net>
Reported-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here are some small USB and PHY driver fixes for 4.20-rc5
Nothing big at all, just the usual handful of USB fixes for reported
issues, along with some gadget and PHY driver bug fixes.
All of these have been in linux-next with no reported issues.
Note, the USB gadget fixes were in linux-next on its own branch, not in
mine, it just got merged into here yesterday and missed linux-next of
today.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.20-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/PHY driver fixes from Greg KH:
"Here are some small USB and PHY driver fixes for 4.20-rc5
Nothing big at all, just the usual handful of USB fixes for reported
issues, along with some gadget and PHY driver bug fixes.
All of these have been in linux-next with no reported issues. Note,
the USB gadget fixes were in linux-next on its own branch, not in
mine, it just got merged into here yesterday and missed linux-next of
today"
* tag 'usb-4.20-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: gadget: u_ether: fix unsafe list iteration
USB: omap_udc: fix rejection of out transfers when DMA is used
USB: omap_udc: fix USB gadget functionality on Palm Tungsten E
USB: omap_udc: fix omap_udc_start() on 15xx machines
USB: omap_udc: fix crashes on probe error and module removal
USB: omap_udc: use devm_request_irq()
usb: core: quirks: add RESET_RESUME quirk for Cherry G230 Stream series
USB: usb-storage: Add new IDs to ums-realtek
Revert "usb: dwc3: gadget: skip Set/Clear Halt when invalid"
phy: qcom-qusb2: Fix HSTX_TRIM tuning with fused value for SDM845
phy: qcom-qusb2: Use HSTX_TRIM fused value as is
dt-bindings: phy-qcom-qmp: Fix several mistakes from prior commits
phy: uniphier-pcie: Depend on HAS_IOMEM
Pull x86 fixes from Ingo Molnar:
"Misc fixes:
- MCE related boot crash fix on certain AMD systems
- FPU exception handling fix
- FPU handling race fix
- revert+rewrite of the RSDP boot protocol extension, use boot_params
instead
- documentation fix"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/MCE/AMD: Fix the thresholding machinery initialization order
x86/fpu: Use the correct exception table macro in the XSTATE_OP wrapper
x86/fpu: Disable bottom halves while loading FPU registers
x86/acpi, x86/boot: Take RSDP address from boot params if available
x86/boot: Mostly revert commit ae7e1238e6 ("Add ACPI RSDP address to setup_header")
x86/ptrace: Fix documentation for tracehook_report_syscall_entry()
On the affected Cortex-A76 cores (r0p0 to r3p0), if a virtual address
for a cacheable mapping of a location is being accessed by a core while
another core is remapping the virtual address to a new physical page
using the recommended break-before-make sequence, then under very rare
circumstances TLBI+DSB completes before a read using the translation
being invalidated has been observed by other observers. The workaround
repeats the TLBI+DSB operation and is shared with the Qualcomm Falkor
erratum 1009
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
A few driver specific fixes here, nothing big or that stands out for
anyone other than the driver users.
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Merge tag 'spi-fix-v4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"A few driver specific fixes here, nothing big or that stands out for
anyone other than the driver users.
The omap2-mcspi fix is for issues that started showing up with a
change in defconfig in this release to make cpuidle get turned on by
default"
* tag 'spi-fix-v4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: omap2-mcspi: Add missing suspend and resume calls
spi: mediatek: use correct mata->xfer_len when in fifo transfer
spi: uniphier: fix incorrect property items
Provide the possibility to enable IBPB always in combination with 'prctl'
and 'seccomp'.
Add the extra command line options and rework the IBPB selection to
evaluate the command instead of the mode selected by the STIPB switch case.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Casey Schaufler <casey.schaufler@intel.com>
Cc: Asit Mallick <asit.k.mallick@intel.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Jon Masters <jcm@redhat.com>
Cc: Waiman Long <longman9394@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Dave Stewart <david.c.stewart@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20181125185006.144047038@linutronix.de
If 'prctl' mode of user space protection from spectre v2 is selected
on the kernel command-line, STIBP and IBPB are applied on tasks which
restrict their indirect branch speculation via prctl.
SECCOMP enables the SSBD mitigation for sandboxed tasks already, so it
makes sense to prevent spectre v2 user space to user space attacks as
well.
The Intel mitigation guide documents how STIPB works:
Setting bit 1 (STIBP) of the IA32_SPEC_CTRL MSR on a logical processor
prevents the predicted targets of indirect branches on any logical
processor of that core from being controlled by software that executes
(or executed previously) on another logical processor of the same core.
Ergo setting STIBP protects the task itself from being attacked from a task
running on a different hyper-thread and protects the tasks running on
different hyper-threads from being attacked.
While the document suggests that the branch predictors are shielded between
the logical processors, the observed performance regressions suggest that
STIBP simply disables the branch predictor more or less completely. Of
course the document wording is vague, but the fact that there is also no
requirement for issuing IBPB when STIBP is used points clearly in that
direction. The kernel still issues IBPB even when STIBP is used until Intel
clarifies the whole mechanism.
IBPB is issued when the task switches out, so malicious sandbox code cannot
mistrain the branch predictor for the next user space task on the same
logical processor.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Casey Schaufler <casey.schaufler@intel.com>
Cc: Asit Mallick <asit.k.mallick@intel.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Jon Masters <jcm@redhat.com>
Cc: Waiman Long <longman9394@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Dave Stewart <david.c.stewart@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20181125185006.051663132@linutronix.de
Now that all prerequisites are in place:
- Add the prctl command line option
- Default the 'auto' mode to 'prctl'
- When SMT state changes, update the static key which controls the
conditional STIBP evaluation on context switch.
- At init update the static key which controls the conditional IBPB
evaluation on context switch.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Casey Schaufler <casey.schaufler@intel.com>
Cc: Asit Mallick <asit.k.mallick@intel.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Jon Masters <jcm@redhat.com>
Cc: Waiman Long <longman9394@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Dave Stewart <david.c.stewart@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20181125185005.958421388@linutronix.de
Add the PR_SPEC_INDIRECT_BRANCH option for the PR_GET_SPECULATION_CTRL and
PR_SET_SPECULATION_CTRL prctls to allow fine grained per task control of
indirect branch speculation via STIBP and IBPB.
Invocations:
Check indirect branch speculation status with
- prctl(PR_GET_SPECULATION_CTRL, PR_SPEC_INDIRECT_BRANCH, 0, 0, 0);
Enable indirect branch speculation with
- prctl(PR_SET_SPECULATION_CTRL, PR_SPEC_INDIRECT_BRANCH, PR_SPEC_ENABLE, 0, 0);
Disable indirect branch speculation with
- prctl(PR_SET_SPECULATION_CTRL, PR_SPEC_INDIRECT_BRANCH, PR_SPEC_DISABLE, 0, 0);
Force disable indirect branch speculation with
- prctl(PR_SET_SPECULATION_CTRL, PR_SPEC_INDIRECT_BRANCH, PR_SPEC_FORCE_DISABLE, 0, 0);
See Documentation/userspace-api/spec_ctrl.rst.
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Casey Schaufler <casey.schaufler@intel.com>
Cc: Asit Mallick <asit.k.mallick@intel.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Jon Masters <jcm@redhat.com>
Cc: Waiman Long <longman9394@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Dave Stewart <david.c.stewart@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20181125185005.866780996@linutronix.de
Add command line control for user space indirect branch speculation
mitigations. The new option is: spectre_v2_user=
The initial options are:
- on: Unconditionally enabled
- off: Unconditionally disabled
-auto: Kernel selects mitigation (default off for now)
When the spectre_v2= command line argument is either 'on' or 'off' this
implies that the application to application control follows that state even
if a contradicting spectre_v2_user= argument is supplied.
Originally-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Casey Schaufler <casey.schaufler@intel.com>
Cc: Asit Mallick <asit.k.mallick@intel.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Jon Masters <jcm@redhat.com>
Cc: Waiman Long <longman9394@gmail.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: Dave Stewart <david.c.stewart@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20181125185005.082720373@linutronix.de
Right now, it mentions two SPDX headers that don't exist inside the Kernel:
GFDL-1.1-or-later
And an exception:
no-invariant-sections
While it would be trivial to add the first one, there's no way,
currently, to distinguish, with SPDX, between a free and a non-free
document under GFDL.
Free documents with GFDL should not have invariant sections.
There's an open issue at SPDX tree waiting for it to be solved.
While we don't have this issue closed, let's just replace by a
free-text license, and add a TODO note to remind us to revisit it
later.
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
*) Fix updating HSTX_TRIM tuning parameter in qcom-qusb2 PHY driver
*) Fix inconsistencies between dt-bindings and the driver
*) Add "Depend on HAS_IOMEM" uniphier-pcie to avoid randconfig errors
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
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Merge tag 'phy-for-4.20-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linus
Kishon writes:
phy: for 4.20-rc
*) Fix updating HSTX_TRIM tuning parameter in qcom-qusb2 PHY driver
*) Fix inconsistencies between dt-bindings and the driver
*) Add "Depend on HAS_IOMEM" uniphier-pcie to avoid randconfig errors
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
* tag 'phy-for-4.20-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy:
phy: qcom-qusb2: Fix HSTX_TRIM tuning with fused value for SDM845
phy: qcom-qusb2: Use HSTX_TRIM fused value as is
dt-bindings: phy-qcom-qmp: Fix several mistakes from prior commits
phy: uniphier-pcie: Depend on HAS_IOMEM
DWC_usb31 peripheral v1.70a-ea06 and prior needs a SW workaround for
isoc START TRANSFER command failure. However, some affected versions may
have RTL patches to fix this without a SW workaround. Add this quirk to
disable the SW workaround when it is not needed.
Synopsys STAR 9001202023: Wrong microframe number for isochronous IN
endpoints.
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Add an option to disable USB2 LPM from host. There maybe cases where the
user does not want to enable USB2 LPM (e.g. USB2 LPM is broken).
Signed-off-by: Thinh Nguyen <thinhn@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
We found some bugs in the DAX conversion to XArray (and one bug which
predated the XArray conversion). There were a couple of bugs in some of
the higher-level functions, which aren't actually being called in today's
kernel, but surfaced as a result of converting existing radix tree &
IDR users over to the XArray. Some of the other changes to how the
higher-level APIs work were also motivated by converting various users;
again, they're not in use in today's kernel, so changing them has a low
probability of introducing a bug.
Dan can still trigger a bug in the DAX code with hot-offline/online,
and we're working on tracking that down.
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Merge tag 'xarray-4.20-rc4' of git://git.infradead.org/users/willy/linux-dax
Pull XArray updates from Matthew Wilcox:
"We found some bugs in the DAX conversion to XArray (and one bug which
predated the XArray conversion). There were a couple of bugs in some
of the higher-level functions, which aren't actually being called in
today's kernel, but surfaced as a result of converting existing radix
tree & IDR users over to the XArray.
Some of the other changes to how the higher-level APIs work were also
motivated by converting various users; again, they're not in use in
today's kernel, so changing them has a low probability of introducing
a bug.
Dan can still trigger a bug in the DAX code with hot-offline/online,
and we're working on tracking that down"
* tag 'xarray-4.20-rc4' of git://git.infradead.org/users/willy/linux-dax:
XArray tests: Add missing locking
dax: Avoid losing wakeup in dax_lock_mapping_entry
dax: Fix huge page faults
dax: Fix dax_unlock_mapping_entry for PMD pages
dax: Reinstate RCU protection of inode
dax: Make sure the unlocking entry isn't locked
dax: Remove optimisation from dax_lock_mapping_entry
XArray tests: Correct some 64-bit assumptions
XArray: Correct xa_store_range
XArray: Fix Documentation
XArray: Handle NULL pointers differently for allocation
XArray: Unify xa_store and __xa_store
XArray: Add xa_store_bh() and xa_store_irq()
XArray: Turn xa_erase into an exported function
XArray: Unify xa_cmpxchg and __xa_cmpxchg
XArray: Regularise xa_reserve
nilfs2: Use xa_erase_irq
XArray: Export __xa_foo to non-GPL modules
XArray: Fix xa_for_each with a single element at 0
Pull HID fixes from Jiri Kosina:
- revert of the high-resolution scrolling feature, as it breaks certain
hardware due to incompatibilities between Logitech and Microsoft
worlds. Peter Hutterer is working on a fixed implementation. Until
that is finished, revert by Benjamin Tissoires.
- revert of incorrect strncpy->strlcpy conversion in uhid, from David
Herrmann
- fix for buggy sendfile() implementation on uhid device node, from
Eric Biggers
- a few assorted device-ID specific quirks
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
Revert "Input: Add the `REL_WHEEL_HI_RES` event code"
Revert "HID: input: Create a utility class for counting scroll events"
Revert "HID: logitech: Add function to enable HID++ 1.0 "scrolling acceleration""
Revert "HID: logitech: Enable high-resolution scrolling on Logitech mice"
Revert "HID: logitech: Use LDJ_DEVICE macro for existing Logitech mice"
Revert "HID: logitech: fix a used uninitialized GCC warning"
Revert "HID: input: simplify/fix high-res scroll event handling"
HID: Add quirk for Primax PIXART OEM mice
HID: i2c-hid: Disable runtime PM for LG touchscreen
HID: multitouch: Add pointstick support for Cirque Touchpad
HID: steam: remove input device when a hid client is running.
Revert "HID: uhid: use strlcpy() instead of strncpy()"
HID: uhid: forbid UHID_CREATE under KERNEL_DS or elevated privileges
HID: input: Ignore battery reported by Symbol DS4308
HID: Add quirk for Microsoft PIXART OEM mouse
Pull networking fixes from David Miller:
1) Need to take mutex in ath9k_add_interface(), from Dan Carpenter.
2) Fix mt76 build without CONFIG_LEDS_CLASS, from Arnd Bergmann.
3) Fix socket wmem accounting in SCTP, from Xin Long.
4) Fix failed resume crash in ena driver, from Arthur Kiyanovski.
5) qed driver passes bytes instead of bits into second arg of
bitmap_weight(). From Denis Bolotin.
6) Fix reset deadlock in ibmvnic, from Juliet Kim.
7) skb_scrube_packet() needs to scrub the fwd marks too, from Petr
Machata.
8) Make sure older TCP stacks see enough dup ACKs, and avoid doing SACK
compression during this period, from Eric Dumazet.
9) Add atomicity to SMC protocol cursor handling, from Ursula Braun.
10) Don't leave dangling error pointer if bpf_prog_add() fails in
thunderx driver, from Lorenzo Bianconi. Also, when we unmap TSO
headers, set sq->tso_hdrs to NULL.
11) Fix race condition over state variables in act_police, from Davide
Caratti.
12) Disable guest csum in the presence of XDP in virtio_net, from Jason
Wang.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (64 commits)
net: gemini: Fix copy/paste error
net: phy: mscc: fix deadlock in vsc85xx_default_config
dt-bindings: dsa: Fix typo in "probed"
net: thunderx: set tso_hdrs pointer to NULL in nicvf_free_snd_queue
net: amd: add missing of_node_put()
team: no need to do team_notify_peers or team_mcast_rejoin when disabling port
virtio-net: fail XDP set if guest csum is negotiated
virtio-net: disable guest csum during XDP set
net/sched: act_police: add missing spinlock initialization
net: don't keep lonely packets forever in the gro hash
net/ipv6: re-do dad when interface has IFF_NOARP flag change
packet: copy user buffers before orphan or clone
ibmvnic: Update driver queues after change in ring size support
ibmvnic: Fix RX queue buffer cleanup
net: thunderx: set xdp_prog to NULL if bpf_prog_add fails
net/dim: Update DIM start sample after each DIM iteration
net: faraday: ftmac100: remove netif_running(netdev) check before disabling interrupts
net/smc: use after free fix in smc_wr_tx_put_slot()
net/smc: atomic SMCD cursor handling
net/smc: add SMC-D shutdown signal
...
The correct form is "can be probed", so fix the typo.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit e4183d3256.
The commit was picked by mistake, as the Rockchip VPU driver
is not ready for inclusion yet, and it's still under discussion.
Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Here are some small char/misc driver fixes for issues that have been
reported.
Nothing major, highlights include:
- gnss sync write fixes
- uio oops fix
- nvmem fixes
- other minor fixes and some documentation/maintainers updates
Full details are in the shortlog.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small char/misc driver fixes for issues that have been
reported.
Nothing major, highlights include:
- gnss sync write fixes
- uio oops fix
- nvmem fixes
- other minor fixes and some documentation/maintainers updates
Full details are in the shortlog.
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
Documentation/security-bugs: Postpone fix publication in exceptional cases
MAINTAINERS: Add Sasha as a stable branch maintainer
gnss: sirf: fix synchronous write timeout
gnss: serial: fix synchronous write timeout
uio: Fix an Oops on load
test_firmware: fix error return getting clobbered
nvmem: core: fix regression in of_nvmem_cell_get()
misc: atmel-ssc: Fix section annotation on atmel_ssc_get_driver_data
drivers/misc/sgi-gru: fix Spectre v1 vulnerability
Drivers: hv: kvp: Fix the recent regression caused by incorrect clean-up
slimbus: ngd: remove unnecessary check
Here are a number of small USB fixes for 4.20-rc4.
There's the usual xhci and dwc2/3 fixes as well as a few minor other
issues resolved for problems that have been reported. Full details are
in the shortlog.
All have been in linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of small USB fixes for 4.20-rc4.
There's the usual xhci and dwc2/3 fixes as well as a few minor other
issues resolved for problems that have been reported. Full details are
in the shortlog.
All have been in linux-next for a while with no reported issues"
* tag 'usb-4.20-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
usb: cdc-acm: add entry for Hiro (Conexant) modem
usb: xhci: Prevent bus suspend if a port connect change or polling state is detected
usb: core: Fix hub port connection events lost
usb: dwc3: gadget: fix ISOC TRB type on unaligned transfers
Revert "usb: gadget: ffs: Fix BUG when userland exits with submitted AIO transfers"
usb: dwc2: pci: Fix an error code in probe
usb: dwc3: Fix NULL pointer exception in dwc3_pci_remove()
xhci: Add quirk to workaround the errata seen on Cavium Thunder-X2 Soc
usb: xhci: fix timeout for transition from RExit to U0
usb: xhci: fix uninitialized completion when USB3 port got wrong status
xhci: Add check for invalid byte size error when UAS devices are connected.
xhci: handle port status events for removed USB3 hcd
xhci: Fix leaking USB3 shared_hcd at xhci removal
USB: misc: appledisplay: add 20" Apple Cinema Display
USB: quirks: Add no-lpm quirk for Raydium touchscreens
usb: quirks: Add delay-init quirk for Corsair K70 LUX RGB
USB: Wait for extra delay time after USB_PORT_FEAT_RESET for quirky hub
usb: dwc3: gadget: Properly check last unaligned/zero chain TRB
usb: dwc3: core: Clean up ULPI device
This reverts commit aaf9978c3c.
Quoting Peter:
There is a HID feature report called "Resolution Multiplier"
Described in the "Enhanced Wheel Support in Windows" doc and
the "USB HID Usage Tables" page 30.
http://download.microsoft.com/download/b/d/1/bd1f7ef4-7d72-419e-bc5c-9f79ad7bb66e/wheel.docxhttps://www.usb.org/sites/default/files/documents/hut1_12v2.pdf
This was new for Windows Vista, so we're only a decade behind here. I only
accidentally found this a few days ago while debugging a stuck button on a
Microsoft mouse.
The docs above describe it like this: a wheel control by default sends
value 1 per notch. If the resolution multiplier is active, the wheel is
expected to send a value of $multiplier per notch (e.g. MS Sculpt mouse) or
just send events more often, i.e. for less physical motion (e.g. MS Comfort
mouse).
For the latter, you need the right HW of course. The Sculpt mouse has
tactile wheel clicks, so nothing really changes. The Comfort mouse has
continuous motion with no tactile clicks. Similar to the free-wheeling
Logitech mice but without any inertia.
Note that the doc also says that Vista and onwards *always* enable this
feature where available.
An example HID definition looks like this:
Usage Page Generic Desktop (0x01)
Usage Resolution Multiplier (0x48)
Logical Minimum 0
Logical Maximum 1
Physical Minimum 1
Physical Maximum 16
Report Size 2 # in bits
Report Count 1
Feature (Data, Var, Abs)
So the actual bits have values 0 or 1 and that reflects real values 1 or 16.
We've only seen single-bits so far, so there's low-res and hi-res, but
nothing in between.
The multiplier is available for HID usages "Wheel" and "AC Pan" (horiz wheel).
Microsoft suggests that
> Vendors should ship their devices with smooth scrolling disabled and allow
> Windows to enable it. This ensures that the device works like a regular HID
> device on legacy operating systems that do not support smooth scrolling.
(see the wheel doc linked above)
The mice that we tested so far do reset on unplug.
Device Support looks to be all (?) Microsoft mice but nothing else
Not supported:
- Logitech G500s, G303
- Roccat Kone XTD
- all the cheap Lenovo, HP, Dell, Logitech USB mice that come with a
workstation that I could find don't have it.
- Etekcity something something
- Razer Imperator
Supported:
- Microsoft Comfort Optical Mouse 3000 - yes, physical: 1:4
- Microsoft Sculpt Ergonomic Mouse - yes, physical: 1:12
- Microsoft Surface mouse - yes, physical: 1:4
So again, I think this is really just available on Microsoft mice, but
probably all decent MS mice released over the last decade.
Looking at the hardware itself:
- no noticeable notches in the weel
- low-res: 18 events per 360deg rotation (click angle 20 deg)
- high-res: 72 events per 360deg → matches multiplier of 4
- I can feel the notches during wheel turns
- low-res: 24 events per 360 deg rotation (click angle 15 deg)
- horiz wheel is tilt-based, continuous output value 1
- high-res: 24 events per 360deg with value 12 → matches multiplier of 12
- horiz wheel output rate doubles/triples?, values is 3
- It's a touch strip, not a wheel so no notches
- high-res: events have value 4 instead of 1
a bit strange given that it doesn't actually have notches.
Ok, why is this an issue for the current API? First, because the logitech
multiplier used in Harry's patches looks suspiciously like the Resolution
Multiplier so I think we should assume it's the same thing. Nestor, can you
shed some light on that?
- `REL_WHEEL` is defined as the number of notches, emulated where needed.
- `REL_WHEEL_HI_RES` is the movement of the user's finger in microns.
- `WM_MOUSEWHEEL` (Windows) is is a multiple of 120, defined as "the threshold
for action to be taken and one such action"
https://docs.microsoft.com/en-us/windows/desktop/inputdev/wm-mousewheel
If the multiplier is set to M, this means we need an accumulated value of M
until we can claim there was a wheel click. So after enabling the multiplier
and setting it to the maximum (like Windows):
- M units are 15deg rotation → 1 unit is 2620/M micron (see below). This is
the `REL_WHEEL_HI_RES` value.
- wheel diameter 20mm: 15 deg rotation is 2.62mm, 2620 micron (pi * 20mm /
(360deg/15deg))
- For every M units accumulated, send one `REL_WHEEL` event
The problem here is that we've now hardcoded 20mm/15 deg into the kernel and
we have no way of getting the size of the wheel or the click angle into the
kernel.
In userspace we now have to undo the kernel's calculation. If our click angle
is e.g. 20 degree we have to undo the (lossy) calculation from the kernel and
calculate the correct angle instead. This also means the 15 is a hardcoded
option forever and cannot be changed.
In hid-logitech-hidpp.c, the microns per unit is hardcoded per device.
Harry, did you measure those by hand? We'd need to update the kernel for
every device and there are 10 years worth of devices from MS alone.
The multiplier default is 8 which is in the right ballpark, so I'm pretty
sure this is the same as the Resolution Multiplier, just in HID++ lingo. And
given that the 120 magic factor is what Windows uses in the end, I can't
imagine Logitech rolling their own thing here. Nestor?
And we're already fairly inaccurate with the microns anyway. The MX Anywhere
2S has a click angle of 20 degrees (18 stops) and a 17mm wheel, so a wheel
notch is approximately 2.67mm, one event at multiplier 8 (1/8 of a notch)
would be 334 micron. That's only 80% of the fallback value of 406 in the
kernel. Multiplier 6 gives us 445micron (10% off). I'm assuming multiplier 7
doesn't exist because it's not a factor of 120.
Summary:
Best option may be to simply do what Windows is doing, all the HW manufacturers
have to use that approach after all. Switch `REL_WHEEL_HI_RES` to report in
fractions of 120, with 120 being one notch and divide that by the multiplier
for the actual events. So e.g. the Logitech multiplier 8 would send value 15
for each event in hi-res mode. This can be converted in userspace to
whatever userspace needs (combined with a hwdb there that tells you wheel
size/click angle/...).
Conflicts:
include/uapi/linux/input-event-codes.h -> I kept the new
reserved event in the code, so I had to adapt the revert
slightly
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Acked-by: Harry Cutts <hcutts@chromium.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Add a generic clk property for clks which are not intended to be used by
the OS due to security restrictions put in place by firmware. For
example, on some Qualcomm firmwares reading or writing certain clk
registers causes the entire system to reboot, but on other firmwares
reading and writing those same registers is required to make devices
like QSPI work. Rather than adding one-off properties each time a new
set of clks appears to be protected, let's add a generic clk property to
describe any set of clks that shouldn't be touched by the OS. This way
we never need to register the clks or use them in certain firmware
configurations.
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Taniya Das <tdas@codeaurora.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Kyle Huey reported that 'rr', a replay debugger, broke due to the following commit:
af3bdb991a ("perf/x86/intel: Add a separate Arch Perfmon v4 PMI handler")
Rework the 'disable_counter_freezing' __setup() parameter such that we
can explicitly enable/disable it and switch to default disabled.
To this purpose, rename the parameter to "perf_v4_pmi=" which is a much
better description and allows requiring a bool argument.
[ mingo: Improved the changelog some more. ]
Reported-by: Kyle Huey <me@kylehuey.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Robert O'Callahan <robert@ocallahan.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: acme@kernel.org
Link: http://lkml.kernel.org/r/20181120170842.GZ2131@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
