This will give us a simpler way of figuring out how
many bytes were left in each TRB. It's useful for
cases where we queue only part of an SG-list due to
amount of available TRBs at the time of kicking the
transfer.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Fri, 21 Oct 2016 10:07:09 +0000 (13:07 +0300)]
usb: dwc3: gadget: cope with XferNotReady before usb_ep_queue()
If XferNotReady comes before usb_ep_queue() we will
set our PENDING request flag and wait for a
request. However, originally, we were assuming
usb_ep_queue() would always happen before our first
XferNotReady and that causes a corner case where we
could try to issue ENDTRANSFER command before
STARTTRANSFER.
Let's fix that by tracking endpoints which have been
started.
Reported-by: Janusz Dziedzic <januszx.dziedzic@intel.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Baolin Wang [Mon, 31 Oct 2016 11:38:36 +0000 (19:38 +0800)]
usb: dwc3: gadget: wait for End Transfer to complete
Instead of just delaying for 100us, we should
actually wait for End Transfer Command Complete
interrupt before moving on. Note that this should
only be done if we're dealing with one of the core
revisions that actually require the interrupt before
moving on.
[ felipe.balbi@linux.intel.com: minor improvements ]
Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
usb: gadget: NCM: differentiate consumed packets from dropped packets
dev_kfree_skb_any() is used to free packets that are dropped by the
network stack. Therefore the function should not be used for packets
that have been successfully processed by the network stack. Instead
dev_consume_skb_any() has to be used for such consumed packets.
This separation helps to identify dropped packets.
Signed-off-by: Torsten Polle <tpolle@de.adit-jv.com> Signed-off-by: Harish Jenny K N <harish_kandiga@mentor.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
usb: gadget: u_ether: link socket buffers to the device for received packets
Socket buffers should be linked to the (network) device that allocated
the buffers. __netdev_alloc_skb performs this task.
Signed-off-by: Torsten Polle <tpolle@de.adit-jv.com> Signed-off-by: Jim Baxter <jim_baxter@mentor.com> Signed-off-by: Harish Jenny K N <harish_kandiga@mentor.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
usb: gadget: NCM: link socket buffers to the device for tx packets
Socket buffers should be linked to the (network) device that allocated
the buffers.
Signed-off-by: Torsten Polle <tpolle@de.adit-jv.com> Signed-off-by: Harish Jenny K N <harish_kandiga@mentor.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Daniel Wagner [Thu, 22 Sep 2016 13:51:53 +0000 (15:51 +0200)]
usb: gadget: f_fs: use complete() instead complete_all()
There is only one waiter for the completion, therefore there
is no need to use complete_all(). Let's make that clear by
using complete() instead of complete_all().
Joe Perches [Tue, 27 Sep 2016 16:16:59 +0000 (09:16 -0700)]
usb: Convert pr_warning to pr_warn
Use the more common logging mechanism.
Miscellanea:
o Realign multiline statements
o Coalesce format
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Baolin Wang [Fri, 14 Oct 2016 09:11:33 +0000 (17:11 +0800)]
usb: dwc3: gadget: don't clear RUN/STOP when it's invalid to do so
When we change the USB function with configfs dynamically, we possibly
met this situation: one core is doing the control transfer, another core
is trying to unregister the USB gadget from userspace, we must wait for
completing this control tranfer, or it will hang the controller to set
the DEVCTRLHLT flag.
[ felipe.balbi@linux.intel.com: several fixes to the patch
- call complete() before starting following SETUP transfer
- add a macro for ep0_in_setup's timeout
- change commit subject slightly
- break lines at 72 characters (git adds an 8-character tab)
- avoid changes to dwc3_gadget_run_stop() ]
Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
That function is unnecessarily called from
dwc3_gadget_reset_interrupt(). Gadget drivers (and
thus, functions) are required to dequeue all pending
requests when they get notified about a USB Bus
Reset.
Trying to make sure there are no pending requests
only serves the purpose of working around possibly
bad gadgets.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
John Youn [Thu, 13 Oct 2016 01:00:55 +0000 (18:00 -0700)]
usb: dwc3: Add support for device L1 exit
For the usb31 IP and from version 2.90a of the usb3 IP, the core
supports HW exit from L1 in HS. Enable it, otherwise the controller may
never exit from LPM to do a transfer.
Signed-off-by: John Youn <johnyoun@synopsys.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Wed, 5 Oct 2016 11:26:23 +0000 (14:26 +0300)]
usb: dwc3: gadget: only interrupt on short if short_not_ok is set
We don't need to know about short packets unless
gadget driver told us it's not ok to see them on the
bus. In the normal situation we can continue
processing the list of requests if we get a Short
packet.
Also, note that we're making sure ISP is only set
for OUT endpoints, where that setting is valid.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Thu, 6 Oct 2016 14:10:39 +0000 (17:10 +0300)]
usb: dwc3: gadget: CSP is only valid for OUT endpoints
CSP bit is only valid for OUT endpoints. Synopsys
databook is unclear if HW ignores CSP for IN
endpoints (chances are, it does) but to avoid
problems, let's make sure to set CSP only when valid
to do so.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
By extracting smaller functions from
dwc3_ep0_handle_feature(), it becomes far easier to
understand what's going on. Cleanup only, no
functional changes.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Fri, 30 Sep 2016 12:52:19 +0000 (15:52 +0300)]
usb: dwc3: trace: add a proper tracepoint for reg accessors
We want to reduce the usage of dwc3_trace() in favor
of proper tracepoints which can be enabled/disabled
by the user. Let's start with our register
accessors.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Fri, 30 Sep 2016 12:01:45 +0000 (15:01 +0300)]
usb: dwc3: Kconfig: allow all glues to build if COMPILE_TEST
We shouldn't have any glue layer which doesn't
compile everywhere. In order to make sure this is
always the case, make sure COMPILE_TEST is properly
added at dependency list of a config entry.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
We don't need dwc3_trace() unless we're building a
kernel with CONFIG_FTRACE. This patch reduces
dwc3.ko text size a bit while also removing overhead
of dwc3_trace() calls.
text data bss dec hex filename
50796 581 0 51377 c8b1 drivers/usb/dwc3/dwc3.o
43961 581 0 44542 adfe drivers/usb/dwc3/dwc3.o.patched
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Thu, 29 Sep 2016 13:28:56 +0000 (16:28 +0300)]
usb: dwc3: gadget: offset Start Transfer latency for bulk EPs
We can offset the latency of a full Start Transfer
command - where we _must_ poll for its completion -
to usb_ep_enable() time. This means that once
requests start showing up from the gadget driver, we
can rely on No Response Update Transfer command -
where we don't need to poll for completion.
This patch, starts implementing this method for Bulk
endpoints, even though, technically, we could extend
it to all other endpoints in future commits.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Wed, 28 Sep 2016 10:42:17 +0000 (13:42 +0300)]
usb: ch9: make usb_endpoint_maxp() return only packet size
Now that we have a helper to gather periodic
endpoints' multiplier bits from wMaxPacketSize and
every driver is using it, we can safely make sure
that usb_endpoint_maxp() returns only bits 10:0 of
wMaxPacketSize which is where the actual packet size
lies.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Fri, 23 Sep 2016 08:20:40 +0000 (11:20 +0300)]
usb: dwc3: gadget: conditionally disable Link State change events
Link State Change events are only needed for
debugging and to apply certain workarounds on known
errata. Let's save a few cycles by disabling these
events completely on working revisions of the core.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Thu, 22 Sep 2016 07:59:12 +0000 (10:59 +0300)]
usb: dwc3: gadget: giveback request if we can't kick it
There might be situations where a Start Transfer
command might fail, if that ever happens, instead of
simply removing the request from our list, we should
give the request back to the gadget driver,
otherwise we might eventually starve it from requests.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Thu, 22 Sep 2016 07:56:08 +0000 (10:56 +0300)]
usb: dwc3: gadget: make use of No Response Update Transfer
No Response Update Transfer is a special type of
Update Transfer command which can be used whenever
we're not relying on XferNotReady to prepare
transfers. With this, we don't need to wait for
CMDACT to be cleared and issue further commands to
the endpoint straight away.
Let's start using this version to skip the long-ish
wait.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Thu, 22 Sep 2016 09:25:28 +0000 (12:25 +0300)]
usb: dwc3: gadget: properly check ep cmd
The cmd argument we pass to
dwc3_send_gadget_ep_cmd() could contain extra
arguments embedded. When checking for StartTransfer
command, we need to make sure to match only lower 4
bits which contain the actual command and ignore the
rest.
Reported-by: Janusz Dziedzic <januszx.dziedzic@intel.com> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Thu, 22 Sep 2016 08:01:01 +0000 (11:01 +0300)]
usb: dwc3: gadget: set PCM1 field of isochronous-first TRBs
In case of High-Speed, High-Bandwidth endpoints, we
need to tell DWC3 that we have more than one packet
per interval. We do that by setting PCM1 field of
Isochronous-First TRB.
Cc: <stable@vger.kernel.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Wed, 28 Sep 2016 09:33:31 +0000 (12:33 +0300)]
usb: gadget: composite: always set ep->mult to a sensible value
ep->mult is supposed to be set to Isochronous and
Interrupt Endapoint's multiplier value. This value
is computed from different places depending on the
link speed.
If we're dealing with HighSpeed, then it's part of
bits [12:11] of wMaxPacketSize. This case wasn't
taken into consideration before.
While at that, also make sure the ep->mult defaults
to one so drivers can use it unconditionally and
assume they'll never multiply ep->maxpacket to zero.
Cc: <stable@vger.kernel.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
usb_endpoint_maxp() returns wMaxPacketSize in its
raw form. Without taking into consideration that it
also contains other bits reserved for isochronous
endpoints.
This patch fixes one occasion where this is a
problem by making sure that we initialize
ep->maxpacket only with lower 10 bits of the value
returned by usb_endpoint_maxp(). Note that seperate
patches will be necessary to audit all call sites of
usb_endpoint_maxp() and make sure that
usb_endpoint_maxp() only returns lower 10 bits of
wMaxPacketSize.
Cc: <stable@vger.kernel.org> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Felipe Balbi [Mon, 26 Sep 2016 07:51:18 +0000 (10:51 +0300)]
usb: add helper to extract bits 12:11 of wMaxPacketSize
According to USB Specification 2.0 table 9-4,
wMaxPacketSize is a bitfield. Endpoint's maxpacket
is laid out in bits 10:0. For high-speed,
high-bandwidth isochronous endpoints, bits 12:11
contain a multiplier to tell us how many
transactions we want to try per uframe.
This means that if we want an isochronous endpoint
to issue 3 transfers of 1024 bytes per uframe,
wMaxPacketSize should contain the value:
1024 | (2 << 11)
or 5120 (0x1400). In order to make Host and
Peripheral controller drivers' life easier, we're
adding a helper which returns bits 12:11. Note that
no care is made WRT to checking endpoint type and
gadget's speed. That's left for drivers to handle.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Linus Torvalds [Sat, 29 Oct 2016 20:42:44 +0000 (13:42 -0700)]
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 bugfix from Thomas Gleixner:
"A single bugfix for the recent changes related to registering the boot
cpu when this has not happened before prefill_possible_map().
The main problem with this change got fixed already, but we missed the
case where the local APIC is not yet mapped, when prefill_possible_map()
is invoked, so the registration of the boot cpu which has the APIC bit
set in CPUID will explode.
I should have seen that issue earlier, but all I can do now is feeling
embarassed"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/smpboot: Init apic mapping before usage
Linus Torvalds [Sat, 29 Oct 2016 20:15:24 +0000 (13:15 -0700)]
Merge tag 'upstream-4.9-rc3' of git://git.infradead.org/linux-ubifs
Pull ubi/ubifs fixes from Richard Weinberger:
"This contains fixes for issues in both UBI and UBIFS:
- A regression wrt overlayfs, introduced in -rc2.
- An UBI issue, found by Dan Carpenter's static checker"
* tag 'upstream-4.9-rc3' of git://git.infradead.org/linux-ubifs:
ubifs: Fix regression in ubifs_readdir()
ubi: fastmap: Fix add_vol() return value test in ubi_attach_fastmap()
Linus Torvalds [Sat, 29 Oct 2016 19:07:29 +0000 (12:07 -0700)]
Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"We haven't seen a whole lot of fixes for the first two weeks since the
merge window, but here is the batch that we have at the moment.
Nothing sticks out as particularly bad or scary, it's mostly a handful
of smaller fixes to several platforms. The Uniphier reset controller
changes could probably have been delayed to 4.10, but they're not
scary and just plumbing up driver changes that went in during the
merge window.
We're also adding another maintainer to Marvell Berlin platforms, to
help out when Sebastian is too busy. Yay teamwork!"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: imx: mach-imx6q: Fix the PHY ID mask for AR8031
ARM: dts: vf610: fix IRQ flag of global timer
ARM: imx: gpc: Fix the imx_gpc_genpd_init() error path
ARM: imx: gpc: Initialize all power domains
arm64: dts: Updated NAND DT properties for NS2 SVK
arm64: dts: uniphier: change MIO node to SD control node
ARM: dts: uniphier: change MIO node to SD control node
reset: uniphier: rename MIO reset to SD reset for Pro5, PXs2, LD20 SoCs
arm64: uniphier: select ARCH_HAS_RESET_CONTROLLER
ARM: uniphier: select ARCH_HAS_RESET_CONTROLLER
arm64: dts: Add timer erratum property for LS2080A and LS1043A
arm64: dts: rockchip: remove the abuse of keep-power-in-suspend
ARM: multi_v7_defconfig: Enable Intel e1000e driver
MAINTAINERS: add myself as Marvell berlin SoC maintainer
bus: qcom-ebi2: depend on ARCH_QCOM or COMPILE_TEST
ARM: dts: fix the SD card on the Snowball
arm64: dts: rockchip: remove always-on and boot-on from vcc_sd
arm64: dts: marvell: fix clocksource for CP110 master SPI0
ARM: mvebu: Select corediv clk for all mvebu v7 SoC
Linus Torvalds [Sat, 29 Oct 2016 18:19:02 +0000 (11:19 -0700)]
Merge tag 'char-misc-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a few small char/misc driver fixes for reported issues.
The "biggest" are two binder fixes for reported issues that have been
shipping in Android phones for a while now, the others are various
fixes for reported problems.
And there's a MAINTAINERS update for good measure.
All have been in linux-next with no reported issues"
* tag 'char-misc-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
MAINTAINERS: Add entry for genwqe driver
VMCI: Doorbell create and destroy fixes
GenWQE: Fix bad page access during abort of resource allocation
vme: vme_get_size potentially returning incorrect value on failure
extcon: qcom-spmi-misc: Sync the extcon state on interrupt
hv: do not lose pending heartbeat vmbus packets
mei: txe: don't clean an unprocessed interrupt cause.
ANDROID: binder: Clear binder and cookie when setting handle in flat binder struct
ANDROID: binder: Add strong ref checks
Olof Johansson [Sat, 29 Oct 2016 18:09:37 +0000 (11:09 -0700)]
Merge tag 'v4.9-rockchip-dts64-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into fixes
Correct regulator handling on Rockchip arm64 boards to make
bind/unbind calls work correctly and remove a sdio-only
property from non-sdio mmc hosts, that accidentially was
added there.
* tag 'v4.9-rockchip-dts64-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
arm64: dts: rockchip: remove the abuse of keep-power-in-suspend
arm64: dts: rockchip: remove always-on and boot-on from vcc_sd
Olof Johansson [Sat, 29 Oct 2016 18:09:11 +0000 (11:09 -0700)]
Merge tag 'arm-soc/for-4.9/devicetree-arm64-fixes' of http://github.com/Broadcom/stblinux into fixes
This pull request contains a single fix for Broadcom ARM64-based SoCs:
- Ray adds the required bus width and OOB sector size properties to the
Northstar 2 SVK reference board in order for the NAND controller to work
properly
* tag 'arm-soc/for-4.9/devicetree-arm64-fixes' of http://github.com/Broadcom/stblinux:
arm64: dts: Updated NAND DT properties for NS2 SVK
Olof Johansson [Sat, 29 Oct 2016 18:08:50 +0000 (11:08 -0700)]
Merge tag 'imx-fixes-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes
The i.MX fixes for 4.9:
- A couple of patches from Fabio to fix the GPC power domain regression
which is caused by PM Domain core change 0159ec670763dd
("PM / Domains: Verify the PM domain is present when adding a
provider"), and a related kernel crash seen with multi_v7_defconfig
build.
- Correct the PHY ID mask for AR8031 to match phy driver code.
- Apply new added timer erratum A008585 for LS1043A and LS2080A SoC.
- Correct vf610 global timer IRQ flag to avoid warning from gic driver
after commit 992345a58e0c ("irqchip/gic: WARN if setting the
interrupt type for a PPI fails").
* tag 'imx-fixes-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
ARM: imx: mach-imx6q: Fix the PHY ID mask for AR8031
ARM: dts: vf610: fix IRQ flag of global timer
ARM: imx: gpc: Fix the imx_gpc_genpd_init() error path
ARM: imx: gpc: Initialize all power domains
arm64: dts: Add timer erratum property for LS2080A and LS1043A
Linus Torvalds [Sat, 29 Oct 2016 17:57:40 +0000 (10:57 -0700)]
Merge tag 'driver-core-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are two small driver core / kernfs fixes for 4.9-rc3.
One makes the Kconfig entry for DEBUG_TEST_DRIVER_REMOVE a bit more
explicit that this is a crazy thing to enable for a distro kernel
(thanks for trying Fedora!), the other resolves an issue with vim
opening kernfs files (sysfs, configfs, etc.)
Both have been in linux-next with no reported issues"
* tag 'driver-core-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
driver core: Make Kconfig text for DEBUG_TEST_DRIVER_REMOVE stronger
kernfs: Add noop_fsync to supported kernfs_file_fops
Linus Torvalds [Sat, 29 Oct 2016 17:20:59 +0000 (10:20 -0700)]
Merge tag 'staging-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO driver fixes from Greg KH:
"Here are some small staging and iio driver fixes for reported issues
for 4.9-rc3. Nothing major, the "largest" being a lustre fix for a
sysfs file that was obviously wrong, and had never been tested, so it
was moved to debugfs as that is where it belongs. The others are small
bug fixes for reported issues with various staging or iio drivers.
All have been in linux-next for a while with no reported issues"
* tag 'staging-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
greybus: fix a leak on error in gb_module_create()
greybus: es2: fix error return code in ap_probe()
greybus: arche-platform: Add missing of_node_put() in arche_platform_change_state()
staging: android: ion: Fix error handling in ion_query_heaps()
iio: accel: sca3000_core: avoid potentially uninitialized variable
iio:chemical:atlas-ph-sensor: Fix use of 32 bit int to hold 16 bit big endian value
staging/lustre/llite: Move unstable_stats from sysfs to debugfs
Staging: wilc1000: Fix kernel Oops on opening the device
staging: android/ion: testing the wrong variable
Staging: greybus: uart: Use gbphy_dev->dev instead of bundle->dev
Staging: greybus: gpio: Use gbphy_dev->dev instead of bundle->dev
iio: adc: ti-adc081c: Select IIO_TRIGGERED_BUFFER to prevent build errors
iio: maxim_thermocouple: Align 16 bit big endian value of raw reads
Linus Torvalds [Sat, 29 Oct 2016 17:17:52 +0000 (10:17 -0700)]
Merge tag 'tty-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are a number of small tty and serial driver fixes for reported
issues for 4.9-rc3. Nothing major, but they do resolve a bunch of
problems with the tty core changes that are in 4.9-rc1, and finally
the atmel serial driver is back working properly.
All have been in linux-next with no reported issues"
* tag 'tty-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: serial_core: fix NULL struct tty pointer access in uart_write_wakeup
tty: serial_core: Fix serial console crash on port shutdown
tty/serial: at91: fix hardware handshake on Atmel platforms
vt: clear selection before resizing
sc16is7xx: always write state when configuring GPIO as an output
sh-sci: document R8A7743/5 support
tty: serial: 8250: 8250_core: NXP SC16C2552 workaround
tty: limit terminal size to 4M chars
tty: serial: fsl_lpuart: Fix Tx DMA edge case
serial: 8250_lpss: enable MSI for sure
serial: core: fix console problems on uart_close
serial: 8250_uniphier: fix clearing divisor latch access bit
serial: 8250_uniphier: fix more unterminated string
serial: pch_uart: add terminate entry for dmi_system_id tables
devicetree: bindings: uart: Add new compatible string for ZynqMP
serial: xuartps: Add new compatible string for ZynqMP
serial: SERIAL_STM32 should depend on HAS_DMA
serial: stm32: Fix comparisons with undefined register
tty: vt, fix bogus division in csi_J
Thomas Gleixner [Sat, 29 Oct 2016 11:42:42 +0000 (13:42 +0200)]
x86/smpboot: Init apic mapping before usage
The recent changes, which forced the registration of the boot cpu on UP
systems, which do not have ACPI tables, have been fixed for systems w/o
local APIC, but left a wreckage for systems which have neither ACPI nor
mptables, but the CPU has an APIC, e.g. virtualbox.
The boot process crashes in prefill_possible_map() as it wants to register
the boot cpu, which needs to access the local apic, but the local APIC is
not yet mapped.
There is no reason why init_apic_mapping() can't be invoked before
prefill_possible_map(). So instead of playing another silly early mapping
game, as the ACPI/mptables code does, we just move init_apic_mapping()
before the call to prefill_possible_map().
In hindsight, I should have noticed that combination earlier.
Sorry for the churn (also in stable)!
Fixes: ff8560512b8d ("x86/boot/smp: Don't try to poke disabled/non-existent APIC") Reported-and-debugged-by: Michal Necasek <michal.necasek@oracle.com> Reported-and-tested-by: Wolfgang Bauer <wbauer@tmo.at> Cc: prarit@redhat.com Cc: ville.syrjala@linux.intel.com Cc: michael.thayer@oracle.com Cc: knut.osmundsen@oracle.com Cc: frank.mehnert@oracle.com Cc: Borislav Petkov <bp@alien8.de> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1610282114380.5053@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Linus Torvalds [Sat, 29 Oct 2016 01:34:19 +0000 (18:34 -0700)]
Merge tag 'acpi-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix recent ACPICA regressions, an older PCI IRQ management
regression, and an incorrect return value of a function in the APEI
code.
Specifics:
- Fix three ACPICA issues related to the interpreter locking and
introduced by recent changes in that area (Lv Zheng).
- Fix a PCI IRQ management regression introduced during the 4.7 cycle
and related to the configuration of shared IRQs on systems with an
ISA bus (Sinan Kaya).
- Fix up a return value of one function in the APEI code (Punit
Agrawal)"
* tag 'acpi-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPICA: Dispatcher: Fix interpreter locking around acpi_ev_initialize_region()
ACPICA: Dispatcher: Fix an unbalanced lock exit path in acpi_ds_auto_serialize_method()
ACPICA: Dispatcher: Fix order issue of method termination
ACPI / APEI: Fix incorrect return value of ghes_proc()
ACPI/PCI: pci_link: Include PIRQ_PENALTY_PCI_USING for ISA IRQs
ACPI/PCI: pci_link: penalize SCI correctly
ACPI/PCI/IRQ: assign ISA IRQ directly during early boot stages
Linus Torvalds [Sat, 29 Oct 2016 01:29:13 +0000 (18:29 -0700)]
Merge tag 'pm-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix two intel_pstate issues related to the way it works when the
scaling_governor sysfs attribute is set to "performance" and fix up
messages in the system suspend core code.
Specifics:
- Fix a missing KERN_CONT in a system suspend message by converting
the affected code to using pr_info() and pr_cont() instead of the
"raw" printk() (Jon Hunter).
- Make intel_pstate set the CPU P-state from its .set_policy()
callback when the scaling_governor sysfs attribute is set to
"performance" so that it interacts with NOHZ_FULL more predictably
which was the case before 4.7 (Rafael Wysocki).
- Make intel_pstate always request the maximum allowed P-state when
the scaling_governor sysfs attribute is set to "performance" to
prevent it from effectively ingoring that setting is some
situations (Rafael Wysocki)"
* tag 'pm-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
cpufreq: intel_pstate: Always set max P-state in performance mode
PM / suspend: Fix missing KERN_CONT for suspend message
cpufreq: intel_pstate: Set P-state upfront in performance mode
Linus Torvalds [Sat, 29 Oct 2016 00:02:58 +0000 (17:02 -0700)]
Merge tag 'arc-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC updates from Vineet Gupta:
- support IDU intc for UP builds
- support gz, lzma compressed uImage [Daniel Mentz]
- adjust /proc/cpuinfo for non-continuous cpu ids [Noam Camus]
- syscall for userspace cmpxchg assist for configs lacking hardware atomics
- rework of boot log printing mainly for identifying older arc700 cores
- retiring some old code, build toggles
* tag 'arc-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: module: print pretty section names
ARC: module: elide loop to save reference to .eh_frame
ARC: mm: retire ARC_DBG_TLB_MISS_COUNT...
ARC: build: retire old toggles
ARC: boot log: refactor cpu name/release printing
ARC: boot log: remove awkward space comma from MMU line
ARC: boot log: don't assume SWAPE instruction support
ARC: boot log: refactor printing abt features not captured in BCRs
ARCv2: boot log: print IOC exists as well as enabled status
ARCv2: IOC: use @ioc_enable not @ioc_exist where intended
ARC: syscall for userspace cmpxchg assist
ARC: fix build warning in elf.h
ARC: Adjust cpuinfo for non-continuous cpu ids
ARC: [build] Support gz, lzma compressed uImage
ARCv2: intc: untangle SMP, MCIP and IDU
Merge branches 'acpica-fixes', 'acpi-pci-fixes' and 'acpi-apei-fixes'
* acpica-fixes:
ACPICA: Dispatcher: Fix interpreter locking around acpi_ev_initialize_region()
ACPICA: Dispatcher: Fix an unbalanced lock exit path in acpi_ds_auto_serialize_method()
ACPICA: Dispatcher: Fix order issue of method termination
* acpi-pci-fixes:
ACPI/PCI: pci_link: Include PIRQ_PENALTY_PCI_USING for ISA IRQs
ACPI/PCI: pci_link: penalize SCI correctly
ACPI/PCI/IRQ: assign ISA IRQ directly during early boot stages
* acpi-apei-fixes:
ACPI / APEI: Fix incorrect return value of ghes_proc()
Lv Zheng [Wed, 26 Oct 2016 07:42:01 +0000 (15:42 +0800)]
ACPICA: Dispatcher: Fix interpreter locking around acpi_ev_initialize_region()
In the code path of acpi_ev_initialize_region(), there is namespace
modification code unlocked. This patch tunes the code to make sure
such modification are always locked.
Fixes: 74f51b80a0c4 (ACPICA: Namespace: Fix dynamic table loading issues) Tested-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Lv Zheng [Wed, 26 Oct 2016 07:40:20 +0000 (15:40 +0800)]
ACPICA: Dispatcher: Fix an unbalanced lock exit path in acpi_ds_auto_serialize_method()
There is a lock unbalanced exit path in acpi_ds_initialize_method(),
this patch corrects it.
Fixes: 441ad11d078f (ACPICA: Dispatcher: Fix a mutex issue for method auto serialization) Tested-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Lv Zheng [Wed, 26 Oct 2016 07:40:12 +0000 (15:40 +0800)]
ACPICA: Dispatcher: Fix order issue of method termination
The last step of the method termination should be the end of the method
serialization. Otherwise, the steps happening after it will face the race
issues that cannot be protected by the method serialization mechanism.
This patch fixes this issue by moving the per-method-object deletion code
prior than the end of the method serialization. Otherwise, the possible
race issues may result in AE_ALREADY_EXISTS error in a parallel
environment.
Fixes: 74f51b80a0c4 (ACPICA: Namespace: Fix dynamic table loading issues) Reported-and-tested-by: Imre Deak <imre.deak@intel.com> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Linus Torvalds [Fri, 28 Oct 2016 23:52:28 +0000 (16:52 -0700)]
Merge tag 'powerpc-4.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fixes marked for stable:
- Convert cmp to cmpd in idle enter sequence (Segher Boessenkool)
- cxl: Fix leaking pid refs in some error paths (Vaibhav Jain)
- Re-fix race condition between going idle and entering guest (Paul Mackerras)
- Fix race condition in setting lock bit in idle/wakeup code (Paul Mackerras)
- radix: Use tlbiel only if we ever ran on the current cpu (Aneesh Kumar K.V)
- relocation, register save fixes for system reset interrupt (Nicholas Piggin)
Fixes for code merged this cycle:
- Fix CONFIG_ALIVEC typo in restore_tm_state() (Valentin Rothberg)
- KVM: PPC: Book3S HV: Fix build error when SMP=n (Michael Ellerman)"
* tag 'powerpc-4.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s: relocation, register save fixes for system reset interrupt
powerpc/mm/radix: Use tlbiel only if we ever ran on the current cpu
powerpc/process: Fix CONFIG_ALIVEC typo in restore_tm_state()
powerpc/64: Fix race condition in setting lock bit in idle/wakeup code
powerpc/64: Re-fix race condition between going idle and entering guest
cxl: Fix leaking pid refs in some error paths
powerpc: Convert cmp to cmpd in idle enter sequence
KVM: PPC: Book3S HV: Fix build error when SMP=n
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