Commit graph

75139 commits

Author SHA1 Message Date
Joerg Roedel
5be9aa95f0 Merge branch 'for-joerg/arm-smmu/updates' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into arm/smmu 2019-11-11 15:10:08 +01:00
Dmitry Osipenko
5699d16055 clk: tegra: Add missing stubs for the case of !CONFIG_PM_SLEEP
The new CPUIDLE driver uses the Tegra's CLK API and that driver won't
strictly depend on CONFIG_PM_SLEEP, hence add the required stubs in
order to allow compiling of the new driver with the CONFIG_PM_SLEEP=n.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-11-11 14:53:05 +01:00
Thierry Reding
73616d0d7e Merge branch 'for-5.5/clk-core' into for-5.5/clk 2019-11-11 14:07:45 +01:00
Dmitry Osipenko
ed1a2459e2 clk: tegra: Add Tegra20/30 EMC clock implementation
A proper External Memory Controller clock rounding and parent selection
functionality is required by the EMC drivers, it is not available using
the generic clock implementation because only the Memory Controller driver
is aware of what clock rates are actually available for a particular
device. EMC drivers will have to register a Tegra-specific CLK-API
callback which will perform rounding of a requested rate. EMC clock users
won't be able to request EMC clock by getting -EPROBE_DEFER until EMC
driver is probed and the callback is set up.

The functionality is somewhat similar to the clk-emc.c which serves
Tegra124+ SoCs. The later HW generations support more parent clock sources
and the HW configuration / integration with the EMC drivers differs a tad
from the older gens, hence it's not really worth to try to squash
everything into a single source file.

Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-11-11 14:01:22 +01:00
Sowjanya Komatineni
d9b86cc482 clk: Add API to get index of the clock parent
This patch adds a new clk_hw_get_parent_index() function that can be
used to retrieve the index of a given clock's parent. This can be useful
for restoring a clock on system resume.

Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-11-11 13:59:35 +01:00
Bartosz Golaszewski
2e7ec69d64 backlight: gpio: Remove unused fields from platform data
Remove the platform data fields that nobody uses.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-11-11 11:34:01 +00:00
Konstantin Khlebnikov
6fcbcec9cf fs/quota: handle overflows of sysctl fs.quota.* and report as unsigned long
Quota statistics counted as 64-bit per-cpu counter. Reading sums per-cpu
fractions as signed 64-bit int, filters negative values and then reports
lower half as signed 32-bit int.

Result may looks like:

fs.quota.allocated_dquots = 22327
fs.quota.cache_hits = -489852115
fs.quota.drops = -487288718
fs.quota.free_dquots = 22083
fs.quota.lookups = -486883485
fs.quota.reads = 22327
fs.quota.syncs = 335064
fs.quota.writes = 3088689

Values bigger than 2^31-1 reported as negative.

All counters except "allocated_dquots" and "free_dquots" are monotonic,
thus they should be reported as is without filtering negative values.

Kernel doesn't have generic helper for 64-bit sysctl yet,
let's use at least unsigned long.

Link: https://lore.kernel.org/r/157337934693.2078.9842146413181153727.stgit@buzz
Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Jan Kara <jack@suse.cz>
2019-11-11 11:06:27 +01:00
Nicolas Saenz Julienne
b12d66278d dma-direct: check for overflows on 32 bit DMA addresses
As seen on the new Raspberry Pi 4 and sta2x11's DMA implementation it is
possible for a device configured with 32 bit DMA addresses and a partial
DMA mapping located at the end of the address space to overflow. It
happens when a higher physical address, not DMAable, is translated to
it's DMA counterpart.

For example the Raspberry Pi 4, configurable up to 4 GB of memory, has
an interconnect capable of addressing the lower 1 GB of physical memory
with a DMA offset of 0xc0000000. It transpires that, any attempt to
translate physical addresses higher than the first GB will result in an
overflow which dma_capable() can't detect as it only checks for
addresses bigger then the maximum allowed DMA address.

Fix this by verifying in dma_capable() if the DMA address range provided
is at any point lower than the minimum possible DMA address on the bus.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-11-11 10:52:18 +01:00
Christoph Hellwig
34dc0ea6bc dma-direct: provide mmap and get_sgtable method overrides
For dma-direct we know that the DMA address is an encoding of the
physical address that we can trivially decode.  Use that fact to
provide implementations that do not need the arch_dma_coherent_to_pfn
architecture hook.  Note that we still can only support mmap of
non-coherent memory only if the architecture provides a way to set an
uncached bit in the page tables.  This must be true for architectures
that use the generic remap helpers, but other architectures can also
manually select it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Max Filippov <jcmvbkbc@gmail.com>
2019-11-11 10:52:15 +01:00
Linus Walleij
22fb3ad0cc mfd: db8500-prcmu: Support U8420-sysclk firmware
There is a distinct version of the Ux500 U8420 variant
with "sysclk", as can be seen from the vendor code that
didn't make it upstream, this firmware lacks the
ULPPLL (ultra-low power phase locked loop) which in
effect means that the timer clock is instead wired to
the 32768 Hz always-on clock.

This has some repercussions when enabling the timer
clock as the code as it stands will disable the timer
clock on these platforms (lacking the so-called
"doze mode") and obtaining the wrong rate of the timer
clock.

The timer frequency is of course needed very early in
the boot, and as a consequence, we need to shuffle
around the early PRCMU init code: whereas in the past
we did not need to look up the PRCMU firmware version
in the early init, but now we need to know the version
before the core system timers are registered so we
restructure the platform callbacks to the PRCMU so as
not to take any arguments and instead look up the
resources it needs directly from the device tree
when initializing.

As we do not yet support any platforms using this
firmware it is not a regression, but as PostmarketOS
is starting to support products with this firmware we
need to fix this up.

The low rate of 32kHz also makes the MTU timer unsuitable
as delay timer but this needs to be fixed in a separate
patch.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Stephan Gerhold <stephan@gerhold.net>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-11-11 08:45:04 +00:00
Lee Jones
5a47c0fbd2 mfd: mfd-core: Remove usage counting for .{en,dis}able() call-backs
The MFD implementation for reference counting was complex and unnecessary.
There was only one bona fide user which has now been converted to handle
the process in a different way. Any future resource protection, shared
enablement functions should be handed by the parent device, rather than
through the MFD subsystem API.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
2019-11-11 08:45:03 +00:00
Lee Jones
ead1c83ddd mfd: mfd-core: Remove mfd_clone_cell()
Providing a subsystem-level API helper seems over-kill just to save a
few lines of C-code.  Previous commits saw us convert mfd_clone_cell()'s
only user over to use a more traditional style of MFD child-device
registration.  Now we can remove the superfluous helper from the MFD API.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Daniel Thompson <daniel.thompson@linaro.org>
2019-11-11 08:45:03 +00:00
Charles Keepax
1e624fce3a mfd: madera: Add support for requesting the supply clocks
Add the ability to get the clock for each clock input pin of the chip
and enable MCLK2 since that is expected to be a permanently enabled
32kHz clock.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-11-11 08:45:03 +00:00
Charles Keepax
28eafe9162 mfd: wm8998: Remove some unused registers
Save a few bytes by removing some registers from the driver that are not
currently used and not intended to be used at any point in the future.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-11-11 08:45:02 +00:00
Jonathan Cameron
cbfdc839ea mfd: twl: Endian fixups in i2c write and read wrappers
Use a local variable to ensure correct endian types for
intermediate results.

Identified by sparse when building the IIO driver.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-11-11 08:45:02 +00:00
Thierry Reding
7f0e60c751 mfd: max77620: Do not allocate IRQs upfront
regmap_add_irq_chip() will try to allocate all of the IRQ descriptors
upfront if passed a non-zero irq_base parameter. However, the intention
is to allocate IRQ descriptors on an as-needed basis if possible. Pass 0
instead of -1 to fix that use-case.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-11-11 08:45:02 +00:00
Lee Jones
393f05f1d4 mfd: Provide MACRO to declare commonly defined MFD cell attributes
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Laxman Dewangan <ldewangan@nvidia.com>
2019-11-11 08:45:02 +00:00
Daniel Schultz
37ef8c2c15 mfd: rk808: Fix RK818 ID template
The Rockchip PMIC driver can automatically detect connected component
versions by reading the ID_MSB and ID_LSB registers. The probe function
will always fail with RK818 PMICs because the ID_MSK is 0xFFF0 and the
RK818 template ID is 0x8181.

This patch changes this value to 0x8180.

Fixes: 9d6105e19f ("mfd: rk808: Fix up the chip id get failed")
Cc: stable@vger.kernel.org
Cc: Elaine Zhang <zhangqing@rock-chips.com>
Cc: Joseph Chen <chenjh@rock-chips.com>
Signed-off-by: Daniel Schultz <d.schultz@phytec.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-11-11 08:45:01 +00:00
Lee Jones
7c5b0264ee Merge branches 'ib-mfd-doc-sparc-libdevres-5.5' and 'ib-mfd-power-rtc-5.5' into ibs-for-mfd-merged 2019-11-11 08:44:36 +00:00
Tuowen Zhao
e537654b70 lib: devres: add a helper function for ioremap_uc
Implement a resource managed strongly uncachable ioremap function.

Cc: <stable@vger.kernel.org> # v4.19+
Tested-by: AceLan Kao <acelan.kao@canonical.com>
Signed-off-by: Tuowen Zhao <ztuowen@gmail.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-11-11 08:40:18 +00:00
Frederic Weisbecker
153bedbac2 irq_work: Convert flags to atomic_t
We need to convert flags to atomic_t in order to later fix an ordering
issue on atomic_cmpxchg() failure. This will allow us to use atomic_fetch_or().

Also clarify the nature of those flags.

[ mingo: Converted two more usage site the original patch missed. ]

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E . McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20191108160858.31665-2-frederic@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-11-11 09:02:56 +01:00
Ingo Molnar
6d5a763c30 Linux 5.4-rc7
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Merge tag 'v5.4-rc7' into sched/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-11-11 08:34:59 +01:00
Ingo Molnar
1ca7feb590 Linux 5.4-rc7
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Merge tag 'v5.4-rc7' into perf/core, to pick up fixes

Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-11-11 07:59:06 +01:00
Tudor Ambarus
658488ed21
mtd: spi-nor: Rename Quad Enable methods
Rename macronix_quad_enable() to a generic name:
spi_nor_sr1_bit6_quad_enable().

Prepend "spi_nor_" to "sr2_bit7_quad_enable". All SPI NOR generic
methods should be prepended by "spi_nor_".

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
2019-11-11 08:56:40 +02:00
Tudor Ambarus
bb2dc7f46a
mtd: spi-nor: Rename CR_QUAD_EN_SPAN to SR2_QUAD_EN_BIT1
JEDEC Basic Flash Parameter Table, 15th DWORD, bits 22:20,
refers to this bit as "bit 1 of the status register 2".
Rename the macro accordingly.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
2019-11-11 08:56:37 +02:00
Tudor Ambarus
3e0930f109
mtd: spi-nor: Rework the disabling of block write protection
spi_nor_unlock() unlocks blocks of memory or the entire flash memory
array, if requested. clear_sr_bp() unlocks the entire flash memory
array at boot time. This calls for some unification, clear_sr_bp() is
just an optimization for the case when the unlock request covers the
entire flash size.

Get rid of clear_sr_bp() and introduce spi_nor_unlock_all(), which is
just a call to spi_nor_unlock() for the entire flash memory array.
This fixes a bug that was present in spi_nor_spansion_clear_sr_bp().
When the QE bit was zero, we used the Write Status (01h) command with
one data byte, which might cleared the Status Register 2. We now always
use the Write Status (01h) command with two data bytes when
SNOR_F_HAS_16BIT_SR is set, to avoid clearing the Status Register 2.

The SNOR_F_NO_READ_CR case is treated as well. When the flash doesn't
support the CR Read command, we make an assumption about the value of
the QE bit. In spi_nor_init(), call spi_nor_quad_enable() first, then
spi_nor_unlock_all(), so that at the spi_nor_unlock_all() time we can
be sure the QE bit has value one, because of the previous call to
spi_nor_quad_enable().

Get rid of the MFR handling and implement specific manufacturer
default_init() fixup hooks.

Note that this changes a bit the logic for the SNOR_MFR_ATMEL,
SNOR_MFR_INTEL and SNOR_MFR_SST cases. Before this patch, the Atmel,
Intel and SST chips did not set the locking ops, but unlocked the entire
flash at boot time, while now they are setting the locking ops to
stm_locking_ops. This should work, since the disable of the block
protection at the boot time used the same Status Register bits to unlock
the flash, as in the stm_locking_ops case.

Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
2019-11-11 08:56:19 +02:00
Tudor Ambarus
39d1e3340c
mtd: spi-nor: Fix clearing of QE bit on lock()/unlock()
Make sure that when doing a lock() or an unlock() operation we don't clear
the QE bit from Status Register 2.

JESD216 revB or later offers information about the *default* Status
Register commands to use (see BFPT DWORDS[15], bits 22:20). In this
standard, Status Register 1 refers to the first data byte transferred on a
Read Status (05h) or Write Status (01h) command. Status register 2 refers
to the byte read using instruction 35h. Status register 2 is the second
byte transferred in a Write Status (01h) command.

Industry naming and definitions of these Status Registers may differ.
The definitions are described in JESD216B, BFPT DWORDS[15], bits 22:20.
There are cases in which writing only one byte to the Status Register 1
has the side-effect of clearing Status Register 2 and implicitly the Quad
Enable bit. This side-effect is hit just by the
BFPT_DWORD15_QER_SR2_BIT1_BUGGY and BFPT_DWORD15_QER_SR2_BIT1 cases.

Suggested-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
2019-11-11 08:55:25 +02:00
Olof Johansson
13a6c8efb3 soc: amlogic: updates for v5.5
Highlights
 - socinfo: more SoC IDs
 - firmware: misc secure-monitor cleanups
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Merge tag 'amlogic-drivers' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic into arm/drivers

soc: amlogic: updates for v5.5

Highlights
- socinfo: more SoC IDs
- firmware: misc secure-monitor cleanups

* tag 'amlogic-drivers' of https://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-amlogic:
  soc: amlogic: meson-gx-socinfo: Fix S905D3 ID for VIM3L
  soc: amlogic: meson-gx-socinfo: Add S905X3 ID for VIM3L
  soc: amlogic: meson-gx-socinfo: Add A1 and A113L IDs
  firmware: meson_sm: use %*ph to print small buffer
  firmware: meson_sm: Rework driver as a proper platform driver
  nvmem: meson-efuse: bindings: Add secure-monitor phandle
  firmware: meson_sm: Mark chip struct as static const

Link: https://lore.kernel.org/r/7hftivs11f.fsf@baylibre.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-11-10 21:26:57 -08:00
Greg Kroah-Hartman
01b59c763f Merge 5.4-rc7 into char-misc-next
We need the char/misc driver fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-11 06:24:30 +01:00
Greg Kroah-Hartman
f0cb9b5dfd Merge 5.4-rc7 into staging-next
We want the staging fixes in here, and it resolves some merge issues.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-11 06:23:37 +01:00
Stephen Boyd
25cb20a212 PM / OPP: Support adjusting OPP voltages at runtime
On some SoCs the Adaptive Voltage Scaling (AVS) technique is
employed to optimize the operating voltage of a device. At a
given frequency, the hardware monitors dynamic factors and either
makes a suggestion for how much to adjust a voltage for the
current frequency, or it automatically adjusts the voltage
without software intervention. Add an API to the OPP library for
the former case, so that AVS type devices can update the voltages
for an OPP when the hardware determines the voltage should
change. The assumption is that drivers like CPUfreq or devfreq
will register for the OPP notifiers and adjust the voltage
according to suggestions that AVS makes.

This patch is derived from [1] submitted by Stephen.
[1] https://lore.kernel.org/patchwork/patch/599279/

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[Roger Lu: Changed to rcu less implementation]
Signed-off-by: Roger Lu <roger.lu@mediatek.com>
[s.nawrocki@samsung.com: added handling of OPP min/max voltage]
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2019-11-11 10:27:15 +05:30
Linus Torvalds
4486695680 ARM: SoC fixes
A set of fixes that have trickled in over the last couple of weeks:
 
  - MAINTAINER update for Cavium/Marvell ThunderX2
 
  - stm32 tweaks to pinmux for Joystick/Camera, and RAM allocation for CAN
    interfaces
 
  - i.MX fixes for voltage regulator GPIO mappings, fixes voltage scaling
    issues
 
  - More i.MX fixes for various issues on i.MX eval boards: interrupt
    storm due to u-boot leaving pins in new states, fixing power button
    config, a couple of compatible-string corrections.
 
  - Powerdown and Suspend/Resume fixes for Allwinner A83-based tablets
 
  - A few documentation tweaks and a fix of a memory leak in the reset
    subsystem
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Olof Johansson:
 "A set of fixes that have trickled in over the last couple of weeks:

   - MAINTAINER update for Cavium/Marvell ThunderX2

   - stm32 tweaks to pinmux for Joystick/Camera, and RAM allocation for
     CAN interfaces

   - i.MX fixes for voltage regulator GPIO mappings, fixes voltage
     scaling issues

   - More i.MX fixes for various issues on i.MX eval boards: interrupt
     storm due to u-boot leaving pins in new states, fixing power button
     config, a couple of compatible-string corrections.

   - Powerdown and Suspend/Resume fixes for Allwinner A83-based tablets

   - A few documentation tweaks and a fix of a memory leak in the reset
     subsystem"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  MAINTAINERS: update Cavium ThunderX2 maintainers
  ARM: dts: stm32: change joystick pinctrl definition on stm32mp157c-ev1
  ARM: dts: stm32: remove OV5640 pinctrl definition on stm32mp157c-ev1
  ARM: dts: stm32: Fix CAN RAM mapping on stm32mp157c
  ARM: dts: stm32: relax qspi pins slew-rate for stm32mp157
  arm64: dts: zii-ultra: fix ARM regulator GPIO handle
  ARM: sunxi: Fix CPU powerdown on A83T
  ARM: dts: sun8i-a83t-tbs-a711: Fix WiFi resume from suspend
  arm64: dts: imx8mn: fix compatible string for sdma
  arm64: dts: imx8mm: fix compatible string for sdma
  reset: fix reset_control_ops kerneldoc comment
  ARM: dts: imx6-logicpd: Re-enable SNVS power key
  soc: imx: gpc: fix initialiser format
  ARM: dts: imx6qdl-sabreauto: Fix storm of accelerometer interrupts
  arm64: dts: ls1028a: fix a compatible issue
  reset: fix reset_control_get_exclusive kerneldoc comment
  reset: fix reset_control_lookup kerneldoc comment
  reset: fix of_reset_control_get_count kerneldoc comment
  reset: fix of_reset_simple_xlate kerneldoc comment
  reset: Fix memory leak in reset_control_array_put()
2019-11-10 13:41:59 -08:00
Paul Cercueil
20b44b4de6 irqchip: ingenic: Drop redundant irq_suspend / irq_resume functions
The same behaviour can be obtained by using the IRQCHIP_MASK_ON_SUSPEND
flag on the IRQ chip.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1570015525-27018-2-git-send-email-zhouyanjie@zoho.com
2019-11-10 18:55:29 +00:00
Marc Zyngier
576a834297 irqchip/gic-v3-its: Kill its->device_ids and use TYPER copy instead
Now that we have a copy of TYPER in the ITS structure, rely on this
to provide the same service as its->device_ids, which gets axed.
Errata workarounds are now updating the cached fields instead of
requiring a separate field in the ITS structure.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20191027144234.8395-7-maz@kernel.org
Link: https://lore.kernel.org/r/20191108165805.3071-7-maz@kernel.org
2019-11-10 18:47:52 +00:00
Marc Zyngier
ffedbf0cba irqchip/gic-v3-its: Kill its->ite_size and use TYPER copy instead
Now that we have a copy of TYPER in the ITS structure, rely on this
to provide the same service as its->ite_size, which gets axed.
Errata workarounds are now updating the cached fields instead of
requiring a separate field in the ITS structure.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20191027144234.8395-6-maz@kernel.org
Link: https://lore.kernel.org/r/20191108165805.3071-6-maz@kernel.org
2019-11-10 18:47:52 +00:00
Robert Richter
98edb865bd EDAC: Remove misleading comment in struct edac_raw_error_desc
There never has been such function edac_raw_error_desc_clean() and in
function ghes_edac_report_mem_error() the whole struct is zero'ed
including the string arrays. Remove that comment.

Signed-off-by: Robert Richter <rrichter@marvell.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20191106093239.25517-9-rrichter@marvell.com
2019-11-10 12:40:14 +01:00
Robert Richter
c498afaf7d EDAC: Introduce an mci_for_each_dimm() iterator
Introduce an mci_for_each_dimm() iterator. It returns a pointer to
a struct dimm_info. This makes the declaration and use of an index
obsolete and avoids access to internal data of struct mci (direct array
access etc).

 [ bp: push the struct dimm_info *dimm; declaration into the
   CONFIG_EDAC_DEBUG block. ]

Signed-off-by: Robert Richter <rrichter@marvell.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20191106093239.25517-4-rrichter@marvell.com
2019-11-10 12:39:40 +01:00
Russell King
727b3668b7 net: sfp: rework upstream interface
The current upstream interface is an all-or-nothing, which is
sub-optimal for future changes, as it doesn't allow the upstream driver
to prepare for the SFP module becoming available, as it is at boot.

Switch to a find-sfp-bus, add-upstream, del-upstream, put-sfp-bus
interface structure instead, which allows the upstream driver to
prepare for a module being available as soon as add-upstream is called.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-09 19:35:53 -08:00
David S. Miller
14684b9301 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
One conflict in the BPF samples Makefile, some fixes in 'net' whilst
we were converting over to Makefile.target rules in 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-09 11:04:37 -08:00
Greg Kroah-Hartman
a61ead03a6 soundwire updates for v5.5-rc1
This round we have bunch of core and Intel driver updates spearheaded
 by Pierre
 
 Details
  - Update unique id checks in core and ACPI helpers
  - Improvements to to Intel driver and cadence lib
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Merge tag 'soundwire-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire into char-misc-next

Vinod writes:

soundwire updates for v5.5-rc1

This round we have bunch of core and Intel driver updates spearheaded
by Pierre

Details
 - Update unique id checks in core and ACPI helpers
 - Improvements to to Intel driver and cadence lib

* tag 'soundwire-5.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: ignore uniqueID when irrelevant
  soundwire: slave: add helper to extract slave ID
  soundwire: remove bitfield for unique_id, use u8
  soundwire: intel: fix PDI/stream mapping for Bulk
  soundwire: cadence_master: make clock stop exit configurable on init
  soundwire: intel/cadence: add flag for interrupt enable
  soundwire: intel: add helper for initialization
  soundwire: cadence_master: add hw_reset capability in debugfs
  soundwire: intel/cadence: fix startup sequence
  soundwire: intel: use correct header for io calls
  soundwire: cadence_master: improve PDI allocation
  soundwire: intel: don't filter out PDI0/1
  soundwire: cadence/intel: simplify PDI/port mapping
  soundwire: intel: remove playback/capture stream_name
  soundwire: remove DAI_ID_RANGE definitions
  soundwire: intel: remove X86 dependency
  soundwire: intel: add missing headers for cross-compilation
2019-11-09 13:18:25 +01:00
Pierre-Louis Bossart
5bd5453978 soundwire: remove bitfield for unique_id, use u8
There is no good reason why the unique_id needs to be stored as 4
bits. The code will work without changes with a u8 since all values
are already filtered while parsing the ACPI tables and Slave devID
registers.

Use u8 representation. This will allow us to encode a
"IGNORE_UNIQUE_ID" value to account for firmware/BIOS creativity.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20191022234808.17432-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-11-09 16:46:56 +05:30
Robert Richter
977b1ce7c1 EDAC: Remove EDAC_DIMM_OFF() macro
The EDAC_DIMM_OFF() macro takes 5 arguments to get the DIMM's index.
Simplify this by storing the index in struct dimm_info to avoid its
calculation and remove the EDAC_DIMM_OFF() macro. The index can be
directly used then.

Another advantage is that edac_mc_alloc() could be used even if the
exact size of the layers is unknown. Only the number of DIMMs would be
needed.

Rename iterator variable to idx, while at it. The name is more handy,
esp. when searching for it in the code.

Signed-off-by: Robert Richter <rrichter@marvell.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20191106093239.25517-3-rrichter@marvell.com
2019-11-09 11:23:49 +01:00
Robert Richter
bc9ad9e40d EDAC: Replace EDAC_DIMM_PTR() macro with edac_get_dimm() function
The EDAC_DIMM_PTR() macro takes 3 arguments from struct mem_ctl_info.
Clean up this interface to only pass the mci struct and replace this
macro with a new function edac_get_dimm().

Also introduce an edac_get_dimm_by_index() function for later use.
This allows it to get a DIMM pointer only by a given index. This can
be useful if the DIMM's position within the layers of the memory
controller or the exact size of the layers are unknown.

Small style changes made for some hunks after applying the semantic
patch.

Semantic patch used:

@@ expression mci, a, b,c; @@

-EDAC_DIMM_PTR(mci->layers, mci->dimms, mci->n_layers, a, b, c)
+edac_get_dimm(mci, a, b, c)

 [ bp: Touchups. ]

Signed-off-by: Robert Richter <rrichter@marvell.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Jason Baron <jbaron@akamai.com>
Cc: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Cc: Tero Kristo <t-kristo@ti.com>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20191106093239.25517-2-rrichter@marvell.com
2019-11-09 10:32:32 +01:00
Linus Torvalds
0058b0a506 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) BPF sample build fixes from Björn Töpel

 2) Fix powerpc bpf tail call implementation, from Eric Dumazet.

 3) DCCP leaks jiffies on the wire, fix also from Eric Dumazet.

 4) Fix crash in ebtables when using dnat target, from Florian Westphal.

 5) Fix port disable handling whne removing bcm_sf2 driver, from Florian
    Fainelli.

 6) Fix kTLS sk_msg trim on fallback to copy mode, from Jakub Kicinski.

 7) Various KCSAN fixes all over the networking, from Eric Dumazet.

 8) Memory leaks in mlx5 driver, from Alex Vesker.

 9) SMC interface refcounting fix, from Ursula Braun.

10) TSO descriptor handling fixes in stmmac driver, from Jose Abreu.

11) Add a TX lock to synchonize the kTLS TX path properly with crypto
    operations. From Jakub Kicinski.

12) Sock refcount during shutdown fix in vsock/virtio code, from Stefano
    Garzarella.

13) Infinite loop in Intel ice driver, from Colin Ian King.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (108 commits)
  ixgbe: need_wakeup flag might not be set for Tx
  i40e: need_wakeup flag might not be set for Tx
  igb/igc: use ktime accessors for skb->tstamp
  i40e: Fix for ethtool -m issue on X722 NIC
  iavf: initialize ITRN registers with correct values
  ice: fix potential infinite loop because loop counter being too small
  qede: fix NULL pointer deref in __qede_remove()
  net: fix data-race in neigh_event_send()
  vsock/virtio: fix sock refcnt holding during the shutdown
  net: ethernet: octeon_mgmt: Account for second possible VLAN header
  mac80211: fix station inactive_time shortly after boot
  net/fq_impl: Switch to kvmalloc() for memory allocation
  mac80211: fix ieee80211_txq_setup_flows() failure path
  ipv4: Fix table id reference in fib_sync_down_addr
  ipv6: fixes rt6_probe() and fib6_nh->last_probe init
  net: hns: Fix the stray netpoll locks causing deadlock in NAPI path
  net: usb: qmi_wwan: add support for DW5821e with eSIM support
  CDC-NCM: handle incomplete transfer of MTU
  nfc: netlink: fix double device reference drop
  NFC: st21nfca: fix double free
  ...
2019-11-08 18:21:05 -08:00
Olof Johansson
e24eb5e6e9 AT91 drivers for 5.5
- a new driver exposing the serial number registers through nvmem
  - a few documentation and definition changes
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Merge tag 'at91-5.5-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into arm/drivers

AT91 drivers for 5.5

 - a new driver exposing the serial number registers through nvmem
 - a few documentation and definition changes

* tag 'at91-5.5-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  soc: at91: Add Atmel SFR SN (Serial Number) support
  memory: atmel-ebi: switch to SPDX license identifiers
  memory: atmel-ebi: move NUM_CS definition inside EBI driver
  ARM: at91: Documentation: update the sama5d3 and armv7m datasheets

Link: https://lore.kernel.org/r/20191107221644.GA201884@piout.net
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-11-08 10:33:20 -08:00
Olof Johansson
44a3984778 arm64: soc: Xilinx SoC changes for v5.5
- Extend firmware interface to cover Versal chip
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Merge tag 'zynqmp-soc-for-v5.5' of https://github.com/Xilinx/linux-xlnx into arm/drivers

arm64: soc: Xilinx SoC changes for v5.5

- Extend firmware interface to cover Versal chip

* tag 'zynqmp-soc-for-v5.5' of https://github.com/Xilinx/linux-xlnx:
  firmware: xilinx: Add support for versal soc
  dt-bindings: firmware: Add bindings for Versal firmware
  soc: xilinx: Set CAP_UNUSABLE requirement for versal while powering down domain

Link: https://lore.kernel.org/r/6954a53c-6dab-c7a3-7257-58460ca952cb@monstr.eu
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-11-08 10:27:57 -08:00
Catalin Marinas
6be22809e5 Merge branches 'for-next/elf-hwcap-docs', 'for-next/smccc-conduit-cleanup', 'for-next/zone-dma', 'for-next/relax-icc_pmr_el1-sync', 'for-next/double-page-fault', 'for-next/misc', 'for-next/kselftest-arm64-signal' and 'for-next/kaslr-diagnostics' into for-next/core
* for-next/elf-hwcap-docs:
  : Update the arm64 ELF HWCAP documentation
  docs/arm64: cpu-feature-registers: Rewrite bitfields that don't follow [e, s]
  docs/arm64: cpu-feature-registers: Documents missing visible fields
  docs/arm64: elf_hwcaps: Document HWCAP_SB
  docs/arm64: elf_hwcaps: sort the HWCAP{, 2} documentation by ascending value

* for-next/smccc-conduit-cleanup:
  : SMC calling convention conduit clean-up
  firmware: arm_sdei: use common SMCCC_CONDUIT_*
  firmware/psci: use common SMCCC_CONDUIT_*
  arm: spectre-v2: use arm_smccc_1_1_get_conduit()
  arm64: errata: use arm_smccc_1_1_get_conduit()
  arm/arm64: smccc/psci: add arm_smccc_1_1_get_conduit()

* for-next/zone-dma:
  : Reintroduction of ZONE_DMA for Raspberry Pi 4 support
  arm64: mm: reserve CMA and crashkernel in ZONE_DMA32
  dma/direct: turn ARCH_ZONE_DMA_BITS into a variable
  arm64: Make arm64_dma32_phys_limit static
  arm64: mm: Fix unused variable warning in zone_sizes_init
  mm: refresh ZONE_DMA and ZONE_DMA32 comments in 'enum zone_type'
  arm64: use both ZONE_DMA and ZONE_DMA32
  arm64: rename variables used to calculate ZONE_DMA32's size
  arm64: mm: use arm64_dma_phys_limit instead of calling max_zone_dma_phys()

* for-next/relax-icc_pmr_el1-sync:
  : Relax ICC_PMR_EL1 (GICv3) accesses when ICC_CTLR_EL1.PMHE is clear
  arm64: Document ICC_CTLR_EL3.PMHE setting requirements
  arm64: Relax ICC_PMR_EL1 accesses when ICC_CTLR_EL1.PMHE is clear

* for-next/double-page-fault:
  : Avoid a double page fault in __copy_from_user_inatomic() if hw does not support auto Access Flag
  mm: fix double page fault on arm64 if PTE_AF is cleared
  x86/mm: implement arch_faults_on_old_pte() stub on x86
  arm64: mm: implement arch_faults_on_old_pte() on arm64
  arm64: cpufeature: introduce helper cpu_has_hw_af()

* for-next/misc:
  : Various fixes and clean-ups
  arm64: kpti: Add NVIDIA's Carmel core to the KPTI whitelist
  arm64: mm: Remove MAX_USER_VA_BITS definition
  arm64: mm: simplify the page end calculation in __create_pgd_mapping()
  arm64: print additional fault message when executing non-exec memory
  arm64: psci: Reduce the waiting time for cpu_psci_cpu_kill()
  arm64: pgtable: Correct typo in comment
  arm64: docs: cpu-feature-registers: Document ID_AA64PFR1_EL1
  arm64: cpufeature: Fix typos in comment
  arm64/mm: Poison initmem while freeing with free_reserved_area()
  arm64: use generic free_initrd_mem()
  arm64: simplify syscall wrapper ifdeffery

* for-next/kselftest-arm64-signal:
  : arm64-specific kselftest support with signal-related test-cases
  kselftest: arm64: fake_sigreturn_misaligned_sp
  kselftest: arm64: fake_sigreturn_bad_size
  kselftest: arm64: fake_sigreturn_duplicated_fpsimd
  kselftest: arm64: fake_sigreturn_missing_fpsimd
  kselftest: arm64: fake_sigreturn_bad_size_for_magic0
  kselftest: arm64: fake_sigreturn_bad_magic
  kselftest: arm64: add helper get_current_context
  kselftest: arm64: extend test_init functionalities
  kselftest: arm64: mangle_pstate_invalid_mode_el[123][ht]
  kselftest: arm64: mangle_pstate_invalid_daif_bits
  kselftest: arm64: mangle_pstate_invalid_compat_toggle and common utils
  kselftest: arm64: extend toplevel skeleton Makefile

* for-next/kaslr-diagnostics:
  : Provide diagnostics on boot for KASLR
  arm64: kaslr: Check command line before looking for a seed
  arm64: kaslr: Announce KASLR status on boot
2019-11-08 17:46:11 +00:00
Linus Torvalds
410ef736a7 XArray updates for 5.4
These patches all fix various bugs, some of which people have tripped
 over and some of which have been caught by automatic tools.
 
 Matthew Wilcox (Oracle) (5):
   XArray: Fix xas_next() with a single entry at 0
   idr: Fix idr_get_next_ul race with idr_remove
   radix tree: Remove radix_tree_iter_find
   idr: Fix integer overflow in idr_for_each_entry
   idr: Fix idr_alloc_u32 on 32-bit systems
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Merge tag 'xarray-5.4' of git://git.infradead.org/users/willy/linux-dax

Pull XArray fixes from Matthew Wilcox:
 "These all fix various bugs, some of which people have tripped over and
  some of which have been caught by automatic tools"

* tag 'xarray-5.4' of git://git.infradead.org/users/willy/linux-dax:
  idr: Fix idr_alloc_u32 on 32-bit systems
  idr: Fix integer overflow in idr_for_each_entry
  radix tree: Remove radix_tree_iter_find
  idr: Fix idr_get_next_ul race with idr_remove
  XArray: Fix xas_next() with a single entry at 0
2019-11-08 08:46:49 -08:00
Marc Zyngier
cd7056ae34 Merge remote-tracking branch 'kvmarm/misc-5.5' into kvmarm/next 2019-11-08 11:27:29 +00:00
Marc Zyngier
5bd90b0989 KVM: vgic-v4: Track the number of VLPIs per vcpu
In order to find out whether a vcpu is likely to be the target of
VLPIs (and to further optimize the way we deal with those), let's
track the number of VLPIs a vcpu can receive.

This gets implemented with an atomic variable that gets incremented
or decremented on map, unmap and move of a VLPI.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Christoffer Dall <christoffer.dall@arm.com>
Link: https://lore.kernel.org/r/20191107160412.30301-2-maz@kernel.org
2019-11-08 11:13:24 +00:00