Commit graph

781637 commits

Author SHA1 Message Date
Ville Syrjälä
d81be4f379 drm/i915: Remove intel_panel_detect()
With neither LVDS or eDP no longer using intel_panel_detect() we can
kill it, and the accompanying modparam.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180717174216.22252-3-ville.syrjala@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-07-19 18:39:31 +03:00
Ville Syrjälä
b93b41afce drm/i915: Assume eDP is always connected
We never registered any kind of lid notifier for eDP, so looking at the
lid status is pretty much bonkers. Let's just consider eDP always
connected instead.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180717174216.22252-2-ville.syrjala@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-07-19 18:39:31 +03:00
Ville Syrjälä
05c72e77cc drm/i915: Nuke the LVDS lid notifier
We broke the LVDS notifier resume thing in (presumably) commit
e2c8b8701e ("drm/i915: Use atomic helpers for suspend, v2.") as
we no longer duplicate the current state in the LVDS notifier and
thus we never resume it properly either.

Instead of trying to fix it again let's just kill off the lid
notifier entirely. None of the machines tested thus far have
apparently needed it. Originally the lid notifier was added to
work around cases where the VBIOS was clobbering some of the
hardware state behind the driver's back, mostly on Thinkpads.
We now have a few report of Thinkpads working just fine without
the notifier. So maybe it was misdiagnosed originally, or
something else has changed (ACPI video stuff perhaps?).

If we do end up finding a machine where the VBIOS is still causing
problems I would suggest that we first try setting various bits in
the VBIOS scratch registers. There are several to choose from that
may instruct the VBIOS to steer clear.

With the notifier gone we'll also stop looking at the panel status
in ->detect().

v2: Nuke enum modeset_restore (Rodrigo)

Cc: stable@vger.kernel.org
Cc: Wolfgang Draxinger <wdraxinger.maillist@draxit.de>
Cc: Vito Caputo <vcaputo@pengaru.com>
Cc: kitsunyan <kitsunyan@airmail.cc>
Cc: Joonas Saarinen <jza@saunalahti.fi>
Tested-by: Vito Caputo <vcaputo@pengaru.com> # Thinkapd X61s
Tested-by: kitsunyan <kitsunyan@airmail.cc> # ThinkPad X200
Tested-by: Joonas Saarinen <jza@saunalahti.fi> # Fujitsu Siemens U9210
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105902
References: https://lists.freedesktop.org/archives/intel-gfx/2018-June/169315.html
References: https://bugs.freedesktop.org/show_bug.cgi?id=21230
Fixes: e2c8b8701e ("drm/i915: Use atomic helpers for suspend, v2.")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180717174216.22252-1-ville.syrjala@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-07-19 18:39:31 +03:00
Sergei Shtylyov
d5fd148035 dt-bindings: irqchip: renesas-irqc: Document r8a77980 support
Document R-Car V3H (AKA R8A77980) SoC bindings.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-07-19 16:12:28 +01:00
Biju Das
dcbabbbd26 dt-bindings: irqchip: renesas-irqc: Document r8a77470 support
Renesas RZ/G SoC have the R-Car gen2 compatible IRQC interrupt
controllers. Document RZ/G1C (also known as R8A77470) SoC bindings.

Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-07-19 16:12:28 +01:00
Paul Cercueil
1047557cb9 irqchip/ingenic: Add support for the JZ4725B SoC
The interrupt controller of the JZ4725B works the same way as the other
JZ SoCs from Ingenic; so we just add a new compatible string.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-07-19 16:12:27 +01:00
Ludovic Barre
6bdd0299cf irqchip/stm32: Add exti0 translation for stm32mp1
This patch fixes a datasheet issue, in the draft version the "exti0"
was not connected whereas is it.

Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2018-07-19 16:12:27 +01:00
Hans de Goede
06aa6e5127
ASoC: Intel: bytcr_rt5651: Add quirk table entries for various devices
Add quirk table entries for the following tablets:

ITWorks TW701
Ployer Momo7w
Trekstor win7
Yours 8"

These all use the default settings, except that they only have a single
speaker and thus need the mono-speaker quirk.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-19 16:04:41 +01:00
Hans de Goede
a0d1d867c2
ASoC: Intel: bytcr_rt5651: Add mono speaker quirk
During my initial round of bytcr_rt5651 long-name patches I did not include
a difference for mono vs stereo speaker setups in the longname because it
seems that all 5651 devices with only a single speaker do some mixing of
left + right on the PCB.

However further testing has shown that while this works great when only
playing audio on the left or right channel, the output becomes garbled
when using both channels at once. Something which does not happen when
using the Stereo DAC MIXL / MIXR switches to mix the channels together
inside the codec and then only outputting on a single channel.

So we need to have separate UCM profiles and thus separate long-names
for devices with a mono speaker vs stereo speakers. Just as we already
have for the bytcr_rt5640 case.

This commit adds a new BYT_RT5651_MONO_SPEAKER quirk and adds "stereo-spk"
or "mono-spk" to the long-name based on this and enables this mapping on
devices with a mono speaker.

Changing the long-name like this is ok for now, since I'm still working
on the UCM profiles, so they are not in upstream alsa-lib yet.

This brings the long-name naming scheme fully in sync with the bytcr_rt5640
case, which is good from a consistency pov.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-19 16:04:35 +01:00
Hans de Goede
ac275ee5aa
ASoC: Intel: bytcr_rt5651: Add IN2 input mapping
During the recent cleanup series 3 of the 6 input mappings where removed
from the bytcr_rt5651 machine driver because testing showed that none of
them were used.

However some devices do actually have their internal mic on IN2 (and
only IN2, not IN1 and IN2), this did not show during previous tests
due to a bug in the userspace UCM input device switching code.

This commit re-adds the IN2 mapping for devices with the internal mic.
on IN2 and the headser mic on IN3 and enables this mapping on devices
with their internal mic on IN2.

This commit also changes the default internal mic input to IN2, because
all my 7 test devices have their mic there.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-19 16:04:32 +01:00
Hans de Goede
8627fb257e
ASoC: Intel: bytcr_rt5651: Set OVCD limit for VIOS LTH17 to 2000uA
With the default over current detect limit of 1500uA headsets on often
get detected as headphones on the VIOS LTH17 and even when detected as
headset the OVCD current triggers often while plugged in, resulting in
false-positive button press detection.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-19 16:04:28 +01:00
Hans de Goede
0a3badd141
ASoC: Intel: bytcr_rt5651: Fix using the wrong GPIO for the ext-amp on some boards
Some boards have I2cSerialBusV2, GpioIo, GpioInt as ACPI resources, other
boards may  have I2cSerialBusV2, GpioInt, GpioIo instead. We want the
GpioIo one for the ext-amp-enable-gpio.

So far we've been assuming that the GpioIo one always comes first, this
commit adds code to detect which one comes first and to add the right
gpio-mapping.

This fixes sound not working on the Vios LTH17 laptop.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-19 16:04:13 +01:00
Hans de Goede
eea1662525
ASoC: rt5651: Add IN3 Boost volume control
Add a mixer control for the IN3 Boost volume, IN3 is used for the headset
mic on most devices, so this is necessary to control the headset mic
volume.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-19 16:02:55 +01:00
Yi Wang
3058758925 timer: Fix coding style
The call to wake_up_nohz_cpu() is incorrectly indented. Remove the surplus TAB.

Signed-off-by: Yi Wang <wang.yi59@zte.com.cn>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jiang Biao <jiang.biao2@zte.com.cn>
Cc: john.stultz@linaro.org
Cc: sboyd@kernel.org
Cc: zhong.weidong@zte.com.cn
CC: Anna-Maria Gleixner <anna-maria@linutronix.de>
Link: https://lkml.kernel.org/r/1531721337-30284-1-git-send-email-wang.yi59@zte.com.cn
2018-07-19 16:52:40 +02:00
Icenowy Zheng
ecbd611882
arm64: allwinner: h6: enable MMC0/2 on Pine H64
The Pine H64 board have a MicroSD slot connected to MMC0 controller of
the H6 SoC and a eMMC slot connected to MMC2.

Enable them in the device tree.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-07-19 16:50:33 +02:00
Icenowy Zheng
8f54bd1595
arm64: allwinner: h6: add device tree nodes for MMC controllers
The Allwinner H6 SoC have 3 MMC controllers.

Add device tree nodes for them.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-07-19 16:50:30 +02:00
Icenowy Zheng
0a23f1ad88
dt-binding: mmc: sunxi: add H6 compatible (with A64 fallback)
The MMC controllers on H6 is similar to the ones on A64, but with some
new features.

Add compatible strings for them (with the A64 compatible strings as
fallback, in order to make them to work with A64 drivers).

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-07-19 16:50:26 +02:00
Rasmus Villemoes
8e974b3b8e x86: Avoid pr_cont() in show_opcodes()
If concurrent printk() messages are emitted, then pr_cont() is making it
extremly hard to decode which part of the output belongs to what. See the
convoluted example at:

  https://syzkaller.appspot.com/text?tag=CrashReport&x=139d342c400000

Avoid this by using a proper prefix for each line and by using %ph format
in show_opcodes() which emits the 'Code:' line in one go.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: joe@perches.com
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@suse.de>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lkml.kernel.org/r/1532009278-5953-1-git-send-email-penguin-kernel@I-love.SAKURA.ne.jp
2018-07-19 16:46:23 +02:00
Linus Torvalds
f39f28ff82 sound fixes for 4.18-rc6
A rawmidi race fix and three trivial HD-audio quirks.
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Merge tag 'sound-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A rawmidi race fix and three trivial HD-audio quirks"

* tag 'sound-4.18-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek - Yet another Clevo P950 quirk entry
  ALSA: rawmidi: Change resized buffers atomically
  ALSA: hda/realtek - Add Panasonic CF-SZ6 headset jack quirk
  ALSA: hda: add mute led support for HP ProBook 455 G5
2018-07-19 07:43:17 -07:00
Robin H. Johnson
2c4d6baf1b ACPI / EC: Use ec_no_wakeup on more Thinkpad X1 Carbon 6th systems
The ec_no_wakeup matcher added for Thinkpad X1 Carbon 6th gen systems
beyond matched only a single DMI model (20KGS3JF01), that didn't cover
my laptop (20KH002JUS). Change to match based on DMI product family to
cover all X1 6th gen systems.

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-07-19 16:42:15 +02:00
Maxime Ripard
d1ed755dde
ARM: dts: sun5i: Fix the SRAM A3-A4 declaration
According to the system control bindings, the A3-A4 SRAM node should be
a child node of the SRAM it belongs to. However, it was introduced at the
same level, therefore breaking the binding. Fix this.

Fixes: 8587019625 ("ARM: sun5i: a13: Merge common controllers into the common DTSI")
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-07-19 16:39:42 +02:00
Maxime Ripard
7377330a1e
soc: sunxi: Add the A13, A23 and H3 system control compatibles
The A13, A23 and H3 have variations of the system controls, in part due to
the SRAM that are available (and can be mapped) in the SoC.

In order to make it future proof, let's add compatibles for these SoCs in
the driver.

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-07-19 16:39:12 +02:00
Gustavo A. R. Silva
cd0ed39dc9 s390/tape: replace PTR_RET with PTR_ERR_OR_ZERO
PTR_RET is deprecated, use PTR_ERR_OR_ZERO instead.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-07-19 16:37:37 +02:00
Gustavo A. R. Silva
9fa6a659ca s390/hypfs: Replace PTR_RET with PTR_ERR_OR_ZERO
PTR_RET is deprecated, use PTR_ERR_OR_ZERO instead.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-07-19 16:37:36 +02:00
Gustavo A. R. Silva
757853ea19 s390/dasd: replace PTR_RET with PTR_ERR_OR_ZERO
PTR_RET is deprecated, use PTR_ERR_OR_ZERO instead.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-07-19 16:37:34 +02:00
Gustavo A. R. Silva
9c705206d0 s390/ap_bus: replace PTR_RET with PTR_ERR_OR_ZERO
PTR_RET is deprecated, use PTR_ERR_OR_ZERO instead.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-07-19 16:37:33 +02:00
Martin Schwidefsky
054732837c s390/keyboard: sanitize array index in do_kdsk_ioctl
The kbd_ioctl uses two user controlled indexes for KDGKBENT/KDSKBENT.
Use array_index_nospec to prevent any out of bounds speculation.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2018-07-19 16:37:30 +02:00
Corentin Labbe
22f3d86f0d
arm64: dts: allwinner: a64: Remove unused address-cells/size-cells of dwmac-sun8i
address-cells/size-cells is unnecessary for dwmac-sun8i node.
It was in early days, but since a mdio node is used, it could be
removed.

This patch fix the following DT warning:
Warning (avoid_unnecessary_addr_size): /soc/ethernet@1c50000: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-07-19 16:37:23 +02:00
Linus Torvalds
b4394c3435 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
 "This fixes an allocation error-path bug in af_alg discovered by
  syzkaller"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: af_alg - Initialize sg_num_bytes in error code path
2018-07-19 07:32:44 -07:00
Corentin Labbe
8fb147322a
ARM: dts: sunxi-h3-h5: Remove unused address-cells/size-cells of dwmac-sun8i
address-cells/size-cells is unnecessary for dwmac-sun8i node.
It was in early days, but since a mdio node is used, it could be
removed.

This patch fix the following DT warning:
Warning (avoid_unnecessary_addr_size): /soc/ethernet@1c50000: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-07-19 16:31:04 +02:00
Corentin Labbe
24770a3160
ARM: dts: sun8i: r40: Remove unused address-cells/size-cells of dwmac-sun8i
address-cells/size-cells is unnecessary for dwmac-sun8i node.
It was in early days, but since a mdio node is used, it could be
removed.

This patch fix the following DT warning:
Warning (avoid_unnecessary_addr_size): /soc/ethernet@1c50000: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-07-19 16:29:22 +02:00
Corentin Labbe
b689ea74a6
ARM: dts: sun8i: a83t: Remove unused address-cells/size-cells of dwmac-sun8i
ddress-cells/size-cells is unnecessary for dwmac-sun8i node.
It was in early days, but since a mdio node is used, it could be
removed.

This patch fix the following DT warning:
Warning (avoid_unnecessary_addr_size): /soc/ethernet@1c50000: unnecessary #address-cells/#size-cells without "ranges" or child "reg" property

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-07-19 16:29:17 +02:00
Corentin Labbe
089d0f967e
dt-bindings: net: dwmac-sun8i: Remove unused address-cells/size-cells
address-cells/size-cells is unnecessary for dwmac-sun8i node.
It was in early days, but since a mdio node is used, it could be
removed.

Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
2018-07-19 16:23:36 +02:00
Richard Fitzgerald
d52ed4b0bc
ASoC: wm_adsp: Parse HOST_BUFFER controls
Currently the compressed streams in DSP firmwares are
identified essentially by looking at a fixed location inside
the firmware. This is fragile and also limits things to a
single compressed stream.

Here a new form of firmware parameter is added, the HOST_BUFFER
which identifies a compressed stream from meta-data in the
firmware file. This is more robust and allows for the possiblity
of using multiple streams per core in the future. Currently the
implementation is still limited to a single stream and will
use the first HOST_BUFFER parameter encountered. If there aren't
any HOST_BUFFER parameters it will fall back to the legacy way
of finding the host buffer.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-19 15:11:56 +01:00
Richard Fitzgerald
3bbc2705a3
ASoC: wm_adsp: Allow up to 8 channels for voice control
Newer voice control firmwares can capture multiple audio channels.
Allow up to 8 channels for future-proofing.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-19 15:11:55 +01:00
Charles Keepax
b7ede5af62
ASoC: wm_adsp: Take prefix into account in control name length
Currently when creating ALSA control names for the DSP the length of any
prefix applied to the CODEC is not taken into account. Whilst this is
mostly harmless it does result in ALSA doing the truncation of the
control names and printing a warning. It is better to have the driver do
the truncation so it can truncate from the start of parameter name
itself to give a greater chance of the result maintain a unique name.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-19 15:11:54 +01:00
Charles Keepax
517ee74e1b
ASoC: wm_adsp: Correct algorithm list allocation size
Commit 6396bb2215 ("treewide: kzalloc() -> kcalloc()") was
overlooked when doing some refactoring to the algorithm list
handling, which lead to twice as much buffer being allocated
as required for reading the algorithm list. A kcalloc is no
longer appropriate since the allocation size is now in bytes
not registers, as such change back to kzalloc.

Fixes: 7f7cca08ab ("ASoC: wm_adsp: Simplify handling of alg offset and length")
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-19 15:11:53 +01:00
Stuart Henderson
868e49a4a0
ASoC: wm_adsp: Ensure DSP boot work complete before preloader_put return
All controls derived from the loaded firmware should be created prior
to returning from the preloader's put function, such that they are
immediately available to user-space.

Signed-off-by: Stuart Henderson <stuarth@opensource.cirrus.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2018-07-19 15:09:41 +01:00
Filipe Manana
bd3599a0e1 Btrfs: fix file data corruption after cloning a range and fsync
When we clone a range into a file we can end up dropping existing
extent maps (or trimming them) and replacing them with new ones if the
range to be cloned overlaps with a range in the destination inode.
When that happens we add the new extent maps to the list of modified
extents in the inode's extent map tree, so that a "fast" fsync (the flag
BTRFS_INODE_NEEDS_FULL_SYNC not set in the inode) will see the extent maps
and log corresponding extent items. However, at the end of range cloning
operation we do truncate all the pages in the affected range (in order to
ensure future reads will not get stale data). Sometimes this truncation
will release the corresponding extent maps besides the pages from the page
cache. If this happens, then a "fast" fsync operation will miss logging
some extent items, because it relies exclusively on the extent maps being
present in the inode's extent tree, leading to data loss/corruption if
the fsync ends up using the same transaction used by the clone operation
(that transaction was not committed in the meanwhile). An extent map is
released through the callback btrfs_invalidatepage(), which gets called by
truncate_inode_pages_range(), and it calls __btrfs_releasepage(). The
later ends up calling try_release_extent_mapping() which will release the
extent map if some conditions are met, like the file size being greater
than 16Mb, gfp flags allow blocking and the range not being locked (which
is the case during the clone operation) nor being the extent map flagged
as pinned (also the case for cloning).

The following example, turned into a test for fstests, reproduces the
issue:

  $ mkfs.btrfs -f /dev/sdb
  $ mount /dev/sdb /mnt

  $ xfs_io -f -c "pwrite -S 0x18 9000K 6908K" /mnt/foo
  $ xfs_io -f -c "pwrite -S 0x20 2572K 156K" /mnt/bar

  $ xfs_io -c "fsync" /mnt/bar
  # reflink destination offset corresponds to the size of file bar,
  # 2728Kb minus 4Kb.
  $ xfs_io -c ""reflink ${SCRATCH_MNT}/foo 0 2724K 15908K" /mnt/bar
  $ xfs_io -c "fsync" /mnt/bar

  $ md5sum /mnt/bar
  95a95813a8c2abc9aa75a6c2914a077e  /mnt/bar

  <power fail>

  $ mount /dev/sdb /mnt
  $ md5sum /mnt/bar
  207fd8d0b161be8a84b945f0df8d5f8d  /mnt/bar
  # digest should be 95a95813a8c2abc9aa75a6c2914a077e like before the
  # power failure

In the above example, the destination offset of the clone operation
corresponds to the size of the "bar" file minus 4Kb. So during the clone
operation, the extent map covering the range from 2572Kb to 2728Kb gets
trimmed so that it ends at offset 2724Kb, and a new extent map covering
the range from 2724Kb to 11724Kb is created. So at the end of the clone
operation when we ask to truncate the pages in the range from 2724Kb to
2724Kb + 15908Kb, the page invalidation callback ends up removing the new
extent map (through try_release_extent_mapping()) when the page at offset
2724Kb is passed to that callback.

Fix this by setting the bit BTRFS_INODE_NEEDS_FULL_SYNC whenever an extent
map is removed at try_release_extent_mapping(), forcing the next fsync to
search for modified extents in the fs/subvolume tree instead of relying on
the presence of extent maps in memory. This way we can continue doing a
"fast" fsync if the destination range of a clone operation does not
overlap with an existing range or if any of the criteria necessary to
remove an extent map at try_release_extent_mapping() is not met (file
size not bigger then 16Mb or gfp flags do not allow blocking).

CC: stable@vger.kernel.org # 3.16+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2018-07-19 15:36:31 +02:00
Chris Wilson
d78d3343dc drm/i915/execlists: Move the assertion we have the rpm wakeref down
There's a race between idling the engine and finishing off the last
tasklet (as we may kick the tasklets after declaring an individual
engine idle). However, since we do not need to access the device until
we try to submit to the ELSP register (processing the CSB just requires
normal CPU access to the HWSP, and when idle we should not need to
submit!) we can defer the assertion unto that point. The assertion is
still useful as it does verify that we do hold the longterm GT wakeref
taken from request allocation until request completion.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107274
Fixes: 9512f985c3 ("drm/i915/execlists: Direct submission of new requests (avoid tasklet/ksoftirqd)")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180719075029.28643-1-chris@chris-wilson.co.uk
2018-07-19 13:23:43 +01:00
Vaibhav Jain
ef6cb5f1a0 cxl: Fix wrong comparison in cxl_adapter_context_get()
Function atomic_inc_unless_negative() returns a bool to indicate
success/failure. However cxl_adapter_context_get() wrongly compares
the return value against '>=0' which will always be true. The patch
fixes this comparison to '==0' there by also fixing this compile time
warning:

	drivers/misc/cxl/main.c:290 cxl_adapter_context_get()
	warn: 'atomic_inc_unless_negative(&adapter->contexts_num)' is unsigned

Fixes: 70b565bbdb ("cxl: Prevent adapter reset if an active context exists")
Cc: stable@vger.kernel.org # v4.9+
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-07-19 21:58:11 +10:00
Alistair Popple
99c3ce33a0 powerpc/powernv/npu: Add a debugfs setting to change ATSD threshold
The threshold at which it becomes more efficient to coalesce a range
of ATSDs into a single per-PID ATSD is currently not well understood
due to a lack of real-world work loads. This patch adds a debugfs
parameter allowing the threshold to be altered at runtime in order to
aid future development and refinement of the value.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-07-19 21:58:10 +10:00
Michael Hanselmann
d69ccc00c4 MAINTAINERS: Remove the entry for the orphaned ams driver
I no longer have any hardware with the Apple motion sensor and thus
relinquish maintainership of the driver.

Remove the maintainers entry entirely, meaning the code will now fall
under "LINUX FOR POWER MACINTOSH".

Signed-off-by: Michael Hanselmann <linux-kernel@hansmi.ch>
[mpe: Drop the entry entirely, munge change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-07-19 21:58:10 +10:00
Bharat Bhushan
fca7bf946e powerpc/mpic: Pass first free vector number to mpic_setup_error_int()
Update the comment to account for the spurious interrupt number. The
code was already accounting for it, but that was unclear because it
was achieved by mpic_setup_error_int() knowing that the number it was
passed was the last used vector, rather than the first free vector.

So change the meaning of the argument to the first free vector and
update the caller to pass 13, instead of 12, to achieve the same
result.

Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
[mpe: Rewrite change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-07-19 21:58:09 +10:00
Chris Wilson
46b1063f91 drm/i915: Handle recursive shrinker for vma->last_active allocation
If we call into the shrinker for direct relcaim inside kmalloc, it will
retire the requests. If we retire the vma->last_active while processing a
new i915_vma_move_to_active() we can upset the delicate bookkeeping
required for the cache. After the possible invocation of the shrinker, we
need to double check the vma->last_active is still valid.

Fixes: 8b293eb53a ("drm/i915: Track the last-active inside the i915_vma")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105600#c39
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180719072206.16015-1-chris@chris-wilson.co.uk
2018-07-19 12:27:46 +01:00
Christian Borntraeger
a3da7b4a3b KVM: s390: add etoken support for guests
We want to provide facility 156 (etoken facility) to our
guests. This includes migration support (via sync regs) and
VSIE changes. The tokens are being reset on clear reset. This
has to be implemented by userspace (via sync regs).

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
2018-07-19 12:59:36 +02:00
Srinivas Pandruvada
eea033d075 cpufreq: intel_pstate: Show different max frequency with turbo 3 and HWP
On HWP platforms with Turbo 3.0, the HWP capability max ratio shows the
maximum ratio of that core, which can be different than other cores. If
we show the correct maximum frequency in cpufreq sysfs via
cpuinfo_max_freq and scaling_max_freq then, user can know which cores
can run faster for pinning some high priority tasks.

Currently the max turbo frequency is shown as max frequency, which is
the max of all cores, even if some cores can't reach that frequency
even for single threaded workload.

But it is possible that max ratio in HWP capabilities is set as 0xFF or
some high invalid value (E.g. One KBL NUC). Since the actual performance
can never exceed 1 core turbo frequency from MSR TURBO_RATIO_LIMIT, we
use this as a bound check.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-07-19 12:53:03 +02:00
Gustavo Pimentel
15c972dfb3 PCI: endpoint: Add MSI set maximum restriction
Add pci_epc_set_msi() maximum 32 interrupts validation.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-07-19 11:47:25 +01:00
Gustavo Pimentel
0653217c18 tools: PCI: Add MSI-X support
Add MSI-X support to pcitest tool.

Modify pcitest.sh script to accommodate MSI-X interrupt tests.

Update documentation accordingly.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-07-19 11:47:13 +01:00
Gustavo Pimentel
e03327122e pci_endpoint_test: Add 2 ioctl commands
Add MSI-X support and update driver documentation accordingly.

Add 2 new IOCTL commands:
 - Allow to reconfigure driver IRQ type in runtime.
 - Allow to retrieve current driver IRQ type configured.

Add IRQ type validation before executing the READ/WRITE/COPY tests.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
2018-07-19 11:46:57 +01:00