95b2c3ec4c
4564 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Charles Keepax
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95b2c3ec4c
|
regmap: Fix memory leak from regmap_register_patch
When a register patch is registered the reg_sequence is copied but the
memory allocated is never freed. Add a kfree in regmap_exit to clean it
up.
Fixes:
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Bartosz Golaszewski
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e680a4098f
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regmap: fix the kerneldoc for regmap_test_bits()
The kerneldoc comment for regmap_test_bits() says that it returns -1 on
regmap_read() failure. This is not true - it will propagate the error
code returned by regmap_read(). Fix it.
Fixes:
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Jens Thoms Toerring
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53d860952c
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regmap: fix alignment issue
The assembly and disassembly of data to be sent to or received from a device invoke functions regmap_format_XX() and regmap_parse_XX() that extract or insert data items from or into a buffer, using assignments. In some cases the functions are called with a buffer pointer with an odd address. On architectures with strict alignment requirements this can result in a kernel crash. The assignments have been replaced by functions that take alignment into account. Signed-off-by: Jens Thoms Toerring <jt@toerring.de> Link: https://lore.kernel.org/r/20200531095300.GA27570@toerring.de Signed-off-by: Mark Brown <broonie@kernel.org> |
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Mark Brown
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93b929922d
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Merge series "regmap: provide simple bitops and use them in a driver" from Bartosz Golaszewski <brgl@bgdev.pl>
Bartosz Golaszewski <bgolaszewski@baylibre.com>:
From: Bartosz Golaszewski <bgolaszewski@baylibre.com>
I noticed that oftentimes I use regmap_update_bits() for simple bit
setting or clearing. In this case the fourth argument is superfluous as
it's always 0 or equal to the mask argument.
This series proposes to add simple bit operations for setting, clearing
and testing specific bits with regmap.
The second patch uses all three in a driver that got recently picked into
the net-next tree.
The patches obviously target different trees so - if you're ok with
the change itself - I propose you pick the first one into your regmap
tree for v5.8 and then I'll resend the second patch to add the first
user for these macros for v5.9.
v1 -> v2:
- convert the new macros to static inline functions
v2 -> v3:
- drop unneeded ternary operator
Bartosz Golaszewski (2):
regmap: provide helpers for simple bit operations
net: ethernet: mtk-star-emac: use regmap bitops
drivers/base/regmap/regmap.c | 22 +++++
drivers/net/ethernet/mediatek/mtk_star_emac.c | 80 ++++++++-----------
include/linux/regmap.h | 36 +++++++++
3 files changed, 93 insertions(+), 45 deletions(-)
base-commit:
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Bartosz Golaszewski
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aa2ff9dbae
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regmap: provide helpers for simple bit operations
In many instances regmap_update_bits() is used for simple bit setting and clearing. In these cases the last argument is redundant and we can hide it with a static inline function. This adds three new helpers for simple bit operations: set_bits, clear_bits and test_bits (the last one defined as a regular function). Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Link: https://lore.kernel.org/r/20200528154503.26304-2-brgl@bgdev.pl Signed-off-by: Mark Brown <broonie@kernel.org> |
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AceLan Kao
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82f25bd73c
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regmap-i2c: add 16-bit width registers support
This allows to access data with 16-bit width of registers via i2c SMBus block functions. The multi-command sequence of the reading function is not safe and may read the wrong data from other address if other commands are sent in-between the SMBus commands in the read function. Read performance: 32768 bytes (33 kB, 32 KiB) copied, 11.4869 s, 2.9 kB/s Write performance(with 1-byte page): 32768 bytes (33 kB, 32 KiB) copied, 129.591 s, 0.3 kB/s The implementation is inspired by below commit https://patchwork.ozlabs.org/patch/545292/ v2: add more descriptions about the issue that maybe introduced by this commit Signed-off-by: AceLan Kao <acelan.kao@canonical.com> Link: https://lore.kernel.org/r/20200424123358.144850-1-acelan.kao@canonical.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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Mark Brown
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3ada1b176e
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Merge series "Add support for Kontron sl28cpld" from Michael Walle <michael@walle.cc>:
The Kontron sl28cpld is a board management chip providing gpio, pwm, fan monitoring and an interrupt controller. For now this controller is used on the Kontron SMARC-sAL28 board. But because of its flexible nature, it might also be used on other boards in the future. The individual blocks (like gpio, pwm, etc) are kept intentionally small. The MFD core driver then instantiates different (or multiple of the same) blocks. It also provides the register layout so it might be updated in the future without a device tree change; and support other boards with a different layout or functionalities. See also [1] for more information. This is my first take of a MFD driver. I don't know whether the subsystem maintainers should only be CCed on the patches which affect the subsystem or on all patches for this series. I've chosen the latter so you can get a more complete picture. [1] https://lore.kernel.org/linux-devicetree/0e3e8204ab992d75aa07fc36af7e4ab2@walle.cc/ Changes since v1: - use of_match_table in all drivers, needed for automatic module loading, when using OF_MFD_CELL() - add new gpio-regmap.c which adds a generic regmap gpio_chip implemention - new patch for reqmap_irq, so we can reuse its implementation - remove almost any code from gpio-sl28cpld.c, instead use gpio-regmap and regmap-irq - change the handling of the mfd core vs device tree nodes; add a new property "of_reg" to the mfd_cell struct which, when set, is matched to the unit-address of the device tree nodes. - fix sl28cpld watchdog when it is not initialized by the bootloader. Explicitly set the operation mode. - also add support for kontron,assert-wdt-timeout-pin in sl28cpld-wdt. As suggested by Bartosz Golaszewski: - define registers as hex - make gpio enum uppercase - move parent regmap check before memory allocation - use device_property_read_bool() instead of the of_ version - mention the gpio flavors in the bindings documentation As suggested by Guenter Roeck: - cleanup #includes and sort them - use devm_watchdog_register_device() - use watchdog_stop_on_reboot() - provide a Documentation/hwmon/sl28cpld.rst - cleaned up the weird tristate->bool and I2C=y issue. Instead mention that the MFD driver is bool because of the following intc patch - removed the SL28CPLD_IRQ typo As suggested by Rob Herring: - combine all dt bindings docs into one patch - change the node name for all gpio flavors to "gpio" - removed the interrupts-extended rule - cleaned up the unit-address space, see above Michael Walle (16): include/linux/ioport.h: add helper to define REG resource constructs mfd: mfd-core: Don't overwrite the dma_mask of the child device mfd: mfd-core: match device tree node against reg property regmap-irq: make it possible to add irq_chip do a specific device node dt-bindings: mfd: Add bindings for sl28cpld mfd: Add support for Kontron sl28cpld management controller irqchip: add sl28cpld interrupt controller support watchdog: add support for sl28cpld watchdog pwm: add support for sl28cpld PWM controller gpio: add a reusable generic gpio_chip using regmap gpio: add support for the sl28cpld GPIO controller hwmon: add support for the sl28cpld hardware monitoring controller arm64: dts: freescale: sl28: enable sl28cpld arm64: dts: freescale: sl28: map GPIOs to input events arm64: dts: freescale: sl28: enable LED support arm64: dts: freescale: sl28: enable fan support .../bindings/gpio/kontron,sl28cpld-gpio.yaml | 51 +++ .../hwmon/kontron,sl28cpld-hwmon.yaml | 27 ++ .../bindings/mfd/kontron,sl28cpld.yaml | 162 +++++++++ .../bindings/pwm/kontron,sl28cpld-pwm.yaml | 35 ++ .../watchdog/kontron,sl28cpld-wdt.yaml | 35 ++ Documentation/hwmon/sl28cpld.rst | 36 ++ .../fsl-ls1028a-kontron-kbox-a-230-ls.dts | 14 + .../fsl-ls1028a-kontron-sl28-var3-ads2.dts | 9 + .../freescale/fsl-ls1028a-kontron-sl28.dts | 124 +++++++ drivers/base/regmap/regmap-irq.c | 84 ++++- drivers/gpio/Kconfig | 15 + drivers/gpio/Makefile | 2 + drivers/gpio/gpio-regmap.c | 321 ++++++++++++++++++ drivers/gpio/gpio-sl28cpld.c | 187 ++++++++++ drivers/hwmon/Kconfig | 10 + drivers/hwmon/Makefile | 1 + drivers/hwmon/sl28cpld-hwmon.c | 152 +++++++++ drivers/irqchip/Kconfig | 3 + drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-sl28cpld.c | 99 ++++++ drivers/mfd/Kconfig | 21 ++ drivers/mfd/Makefile | 2 + drivers/mfd/mfd-core.c | 31 +- drivers/mfd/sl28cpld.c | 154 +++++++++ drivers/pwm/Kconfig | 10 + drivers/pwm/Makefile | 1 + drivers/pwm/pwm-sl28cpld.c | 204 +++++++++++ drivers/watchdog/Kconfig | 11 + drivers/watchdog/Makefile | 1 + drivers/watchdog/sl28cpld_wdt.c | 242 +++++++++++++ include/linux/gpio-regmap.h | 88 +++++ include/linux/ioport.h | 5 + include/linux/mfd/core.h | 26 +- include/linux/regmap.h | 10 + 34 files changed, 2142 insertions(+), 32 deletions(-) create mode 100644 Documentation/devicetree/bindings/gpio/kontron,sl28cpld-gpio.yaml create mode 100644 Documentation/devicetree/bindings/hwmon/kontron,sl28cpld-hwmon.yaml create mode 100644 Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml create mode 100644 Documentation/devicetree/bindings/pwm/kontron,sl28cpld-pwm.yaml create mode 100644 Documentation/devicetree/bindings/watchdog/kontron,sl28cpld-wdt.yaml create mode 100644 Documentation/hwmon/sl28cpld.rst create mode 100644 drivers/gpio/gpio-regmap.c create mode 100644 drivers/gpio/gpio-sl28cpld.c create mode 100644 drivers/hwmon/sl28cpld-hwmon.c create mode 100644 drivers/irqchip/irq-sl28cpld.c create mode 100644 drivers/mfd/sl28cpld.c create mode 100644 drivers/pwm/pwm-sl28cpld.c create mode 100644 drivers/watchdog/sl28cpld_wdt.c create mode 100644 include/linux/gpio-regmap.h -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel |
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Michael Walle
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1247938287
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regmap-irq: make it possible to add irq_chip do a specific device node
Add a new function regmap_add_irq_chip_np() with its corresponding devm_regmap_add_irq_chip_np() variant. Sometimes one want to register the IRQ domain on a different device node that the one of the regmap node. For example when using a MFD where there are different interrupt controllers and particularly for the generic regmap gpio_chip/irq_chip driver. In this case it is not desireable to have the IRQ domain on the parent node. Signed-off-by: Michael Walle <michael@walle.cc> Link: https://lore.kernel.org/r/20200402203656.27047-5-michael@walle.cc Signed-off-by: Mark Brown <broonie@kernel.org> |
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Baolin Wang
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80215f133d
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regmap: Add bus reg_update_bits() support
Add reg_update_bits() support in case some platforms use a special method to update bits of registers. Signed-off-by: Baolin Wang <baolin.wang7@gmail.com> Link: https://lore.kernel.org/r/df32fd0529957d1e7e26ba1465723f16cfbe92c8.1586757922.git.baolin.wang7@gmail.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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David Hildenbrand
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5f47adf762 |
mm/memory_hotplug: allow to specify a default online_type
For now, distributions implement advanced udev rules to essentially - Don't online any hotplugged memory (s390x) - Online all memory to ZONE_NORMAL (e.g., most virt environments like hyperv) - Online all memory to ZONE_MOVABLE in case the zone imbalance is taken care of (e.g., bare metal, special virt environments) In summary: All memory is usually onlined the same way, however, the kernel always has to ask user space to come up with the same answer. E.g., Hyper-V always waits for a memory block to get onlined before continuing, otherwise it might end up adding memory faster than onlining it, which can result in strange OOM situations. This waiting slows down adding of a bigger amount of memory. Let's allow to specify a default online_type, not just "online" and "offline". This allows distributions to configure the default online_type when booting up and be done with it. We can now specify "offline", "online", "online_movable" and "online_kernel" via - "memhp_default_state=" on the kernel cmdline - /sys/devices/system/memory/auto_online_blocks just like we are able to specify for a single memory block via /sys/devices/system/memory/memoryX/state Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Wei Yang <richard.weiyang@gmail.com> Reviewed-by: Baoquan He <bhe@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Oscar Salvador <osalvador@suse.de> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Wei Yang <richard.weiyang@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Wei Liu <wei.liu@kernel.org> Cc: Yumei Huang <yuhuang@redhat.com> Link: http://lkml.kernel.org/r/20200317104942.11178-9-david@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David Hildenbrand
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862919e568 |
mm/memory_hotplug: convert memhp_auto_online to store an online_type
... and rename it to memhp_default_online_type. This is a preparation for more detailed default online behavior. Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Wei Yang <richard.weiyang@gmail.com> Reviewed-by: Baoquan He <bhe@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Oscar Salvador <osalvador@suse.de> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Wei Yang <richard.weiyang@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Wei Liu <wei.liu@kernel.org> Cc: Yumei Huang <yuhuang@redhat.com> Link: http://lkml.kernel.org/r/20200317104942.11178-8-david@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David Hildenbrand
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4dc8207bfd |
drivers/base/memory: store mapping between MMOP_* and string in an array
Let's use a simple array which we can reuse soon. While at it, move the string->mmop conversion out of the device hotplug lock. Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Wei Yang <richard.weiyang@gmail.com> Reviewed-by: Baoquan He <bhe@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Oscar Salvador <osalvador@suse.de> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Wei Yang <richard.weiyang@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Wei Liu <wei.liu@kernel.org> Cc: Yumei Huang <yuhuang@redhat.com> Link: http://lkml.kernel.org/r/20200317104942.11178-4-david@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David Hildenbrand
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efc978ad0e |
drivers/base/memory: map MMOP_OFFLINE to 0
Historically, we used the value -1. Just treat 0 as the special case now. Clarify a comment (which was wrong, when we come via device_online() the first time, the online_type would have been 0 / MEM_ONLINE). The default is now always MMOP_OFFLINE. This removes the last user of the manual "-1", which didn't use the enum value. This is a preparation to use the online_type as an array index. Signed-off-by: David Hildenbrand <david@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Wei Yang <richard.weiyang@gmail.com> Reviewed-by: Baoquan He <bhe@redhat.com> Acked-by: Michal Hocko <mhocko@suse.com> Acked-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Oscar Salvador <osalvador@suse.de> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Wei Yang <richard.weiyang@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Haiyang Zhang <haiyangz@microsoft.com> Cc: Igor Mammedov <imammedo@redhat.com> Cc: "K. Y. Srinivasan" <kys@microsoft.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <paulus@samba.org> Cc: Stephen Hemminger <sthemmin@microsoft.com> Cc: Vitaly Kuznetsov <vkuznets@redhat.com> Cc: Wei Liu <wei.liu@kernel.org> Cc: Yumei Huang <yuhuang@redhat.com> Link: http://lkml.kernel.org/r/20200317104942.11178-3-david@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David Hildenbrand
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956f8b4450 |
drivers/base/memory: rename MMOP_ONLINE_KEEP to MMOP_ONLINE
Patch series "mm/memory_hotplug: allow to specify a default online_type", v3.
Distributions nowadays use udev rules ([1] [2]) to specify if and how to
online hotplugged memory. The rules seem to get more complex with many
special cases. Due to the various special cases,
CONFIG_MEMORY_HOTPLUG_DEFAULT_ONLINE cannot be used. All memory hotplug
is handled via udev rules.
Every time we hotplug memory, the udev rule will come to the same
conclusion. Especially Hyper-V (but also soon virtio-mem) add a lot of
memory in separate memory blocks and wait for memory to get onlined by
user space before continuing to add more memory blocks (to not add memory
faster than it is getting onlined). This of course slows down the whole
memory hotplug process.
To make the job of distributions easier and to avoid udev rules that get
more and more complicated, let's extend the mechanism provided by
- /sys/devices/system/memory/auto_online_blocks
- "memhp_default_state=" on the kernel cmdline
to be able to specify also "online_movable" as well as "online_kernel"
=== Example /usr/libexec/config-memhotplug ===
#!/bin/bash
VIRT=`systemd-detect-virt --vm`
ARCH=`uname -p`
sense_virtio_mem() {
if [ -d "/sys/bus/virtio/drivers/virtio_mem/" ]; then
DEVICES=`find /sys/bus/virtio/drivers/virtio_mem/ -maxdepth 1 -type l | wc -l`
if [ $DEVICES != "0" ]; then
return 0
fi
fi
return 1
}
if [ ! -e "/sys/devices/system/memory/auto_online_blocks" ]; then
echo "Memory hotplug configuration support missing in the kernel"
exit 1
fi
if grep "memhp_default_state=" /proc/cmdline > /dev/null; then
echo "Memory hotplug configuration overridden in kernel cmdline (memhp_default_state=)"
exit 1
fi
if [ $VIRT == "microsoft" ]; then
echo "Detected Hyper-V on $ARCH"
# Hyper-V wants all memory in ZONE_NORMAL
ONLINE_TYPE="online_kernel"
elif sense_virtio_mem; then
echo "Detected virtio-mem on $ARCH"
# virtio-mem wants all memory in ZONE_NORMAL
ONLINE_TYPE="online_kernel"
elif [ $ARCH == "s390x" ] || [ $ARCH == "s390" ]; then
echo "Detected $ARCH"
# standby memory should not be onlined automatically
ONLINE_TYPE="offline"
elif [ $ARCH == "ppc64" ] || [ $ARCH == "ppc64le" ]; then
echo "Detected" $ARCH
# PPC64 onlines all hotplugged memory right from the kernel
ONLINE_TYPE="offline"
elif [ $VIRT == "none" ]; then
echo "Detected bare-metal on $ARCH"
# Bare metal users expect hotplugged memory to be unpluggable. We assume
# that ZONE imbalances on such enterpise servers cannot happen and is
# properly documented
ONLINE_TYPE="online_movable"
else
# TODO: Hypervisors that want to unplug DIMMs and can guarantee that ZONE
# imbalances won't happen
echo "Detected $VIRT on $ARCH"
# Usually, ballooning is used in virtual environments, so memory should go to
# ZONE_NORMAL. However, sometimes "movable_node" is relevant.
ONLINE_TYPE="online"
fi
echo "Selected online_type:" $ONLINE_TYPE
# Configure what to do with memory that will be hotplugged in the future
echo $ONLINE_TYPE 2>/dev/null > /sys/devices/system/memory/auto_online_blocks
if [ $? != "0" ]; then
echo "Memory hotplug cannot be configured (e.g., old kernel or missing permissions)"
# A backup udev rule should handle old kernels if necessary
exit 1
fi
# Process all already pluggedd blocks (e.g., DIMMs, but also Hyper-V or virtio-mem)
if [ $ONLINE_TYPE != "offline" ]; then
for MEMORY in /sys/devices/system/memory/memory*; do
STATE=`cat $MEMORY/state`
if [ $STATE == "offline" ]; then
echo $ONLINE_TYPE > $MEMORY/state
fi
done
fi
=== Example /usr/lib/systemd/system/config-memhotplug.service ===
[Unit]
Description=Configure memory hotplug behavior
DefaultDependencies=no
Conflicts=shutdown.target
Before=sysinit.target shutdown.target
After=systemd-modules-load.service
ConditionPathExists=|/sys/devices/system/memory/auto_online_blocks
[Service]
ExecStart=/usr/libexec/config-memhotplug
Type=oneshot
TimeoutSec=0
RemainAfterExit=yes
[Install]
WantedBy=sysinit.target
=== Example modification to the 40-redhat.rules [2] ===
: diff --git a/40-redhat.rules b/40-redhat.rules-new
: index 2c690e5..168fd03 100644
: --- a/40-redhat.rules
: +++ b/40-redhat.rules-new
: @@ -6,6 +6,9 @@ SUBSYSTEM=="cpu", ACTION=="add", TEST=="online", ATTR{online}=="0", ATTR{online}
: # Memory hotadd request
: SUBSYSTEM!="memory", GOTO="memory_hotplug_end"
: ACTION!="add", GOTO="memory_hotplug_end"
: +# memory hotplug behavior configured
: +PROGRAM=="grep online /sys/devices/system/memory/auto_online_blocks", GOTO="memory_hotplug_end"
: +
: PROGRAM="/bin/uname -p", RESULT=="s390*", GOTO="memory_hotplug_end"
:
: ENV{.state}="online"
===
[1] https://github.com/lnykryn/systemd-rhel/pull/281
[2] https://github.com/lnykryn/systemd-rhel/blob/staging/rules/40-redhat.rules
This patch (of 8):
The name is misleading and it's not really clear what is "kept". Let's
just name it like the online_type name we expose to user space ("online").
Add some documentation to the types.
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: Baoquan He <bhe@redhat.com>
Acked-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Yumei Huang <yuhuang@redhat.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
Cc: Paul Mackerras <paulus@samba.org>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Wei Liu <wei.liu@kernel.org>
Link: http://lkml.kernel.org/r/20200319131221.14044-1-david@redhat.com
Link: http://lkml.kernel.org/r/20200317104942.11178-2-david@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
David Hildenbrand
|
fada9ae3ed |
drivers/base/memory.c: drop pages_correctly_probed()
pages_correctly_probed() is a leftover from ancient times. It dates back to commit |
||
|
David Hildenbrand
|
68c3a6ac65 |
drivers/base/memory.c: drop section_count
Patch series "mm: drop superfluous section checks when onlining/offlining". Let's drop some superfluous section checks on the onlining/offlining path. This patch (of 3): Since commit |
||
|
Linus Torvalds
|
ef05db16bb |
Additional power management updates for 5.7-rc1
- Fix corner-case suspend-to-idle wakeup issue on systems where
the ACPI SCI is shared with another wakeup source (Hans de Goede).
- Add document describing system-wide suspend and resume code flows
to the admin guide (Rafael Wysocki).
- Add kernel command line option to set pm_debug_messages (Chen Yu).
- Choose schedutil as the preferred scaling governor by default on
ARM big.LITTLE systems and on x86 systems using the intel_pstate
driver in the passive mode (Linus Walleij, Rafael Wysocki).
- Drop racy and redundant checks from the PM core's device_prepare()
routine (Rafael Wysocki).
- Make resume from hibernation take the hibernation_restore() return
value into account (Dexuan Cui).
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Merge tag 'pm-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
"Additional power management updates.
These fix a corner-case suspend-to-idle wakeup issue on systems where
the ACPI SCI is shared with another wakeup source, add a kernel
command line option to set pm_debug_messages via the kernel command
line, add a document desctibing system-wide suspend and resume code
flows, modify cpufreq Kconfig to choose schedutil as the preferred
governor by default in a couple of cases and do some assorted
cleanups.
Specifics:
- Fix corner-case suspend-to-idle wakeup issue on systems where the
ACPI SCI is shared with another wakeup source (Hans de Goede).
- Add document describing system-wide suspend and resume code flows
to the admin guide (Rafael Wysocki).
- Add kernel command line option to set pm_debug_messages (Chen Yu).
- Choose schedutil as the preferred scaling governor by default on
ARM big.LITTLE systems and on x86 systems using the intel_pstate
driver in the passive mode (Linus Walleij, Rafael Wysocki).
- Drop racy and redundant checks from the PM core's device_prepare()
routine (Rafael Wysocki).
- Make resume from hibernation take the hibernation_restore() return
value into account (Dexuan Cui)"
* tag 'pm-5.7-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
platform/x86: intel_int0002_vgpio: Use acpi_register_wakeup_handler()
ACPI: PM: Add acpi_[un]register_wakeup_handler()
Documentation: PM: sleep: Document system-wide suspend code flows
cpufreq: Select schedutil when using big.LITTLE
PM: sleep: Add pm_debug_messages kernel command line option
PM: sleep: core: Drop racy and redundant checks from device_prepare()
PM: hibernate: Propagate the return value of hibernation_restore()
cpufreq: intel_pstate: Select schedutil as the default governor
|
||
|
Pingfan Liu
|
e03d1f7834 |
mm/sparse: rename pfn_present() to pfn_in_present_section()
After introducing mem sub section concept, pfn_present() loses its literal meaning, and will not be necessary a truth on partial populated mem section. Since all of the callers use it to judge an absent section, it is better to rename pfn_present() as pfn_in_present_section(). Signed-off-by: Pingfan Liu <kernelfans@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: David Hildenbrand <david@redhat.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> [powerpc] Cc: Dan Williams <dan.j.williams@intel.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Leonardo Bras <leonardo@linux.ibm.com> Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com> Cc: Nathan Lynch <nathanl@linux.ibm.com> Link: http://lkml.kernel.org/r/1581919110-29575-1-git-send-email-kernelfans@gmail.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Rafael J. Wysocki
|
b5252a6cbb |
PM: sleep: core: Drop racy and redundant checks from device_prepare()
Alan Stern points out that the WARN_ON() check in device_prepare() is racy (because the PM-runtime API can be disabled briefly for any device at any time and system suspend can start at any time too) and the pm_runtime_suspended() check in the computation of the direct_complete flag value is redundant (because it will be repeated later anyway). Drop both these checks accordingly. Reported-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
||
|
Linus Torvalds
|
29d9f30d4c |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from David Miller:
"Highlights:
1) Fix the iwlwifi regression, from Johannes Berg.
2) Support BSS coloring and 802.11 encapsulation offloading in
hardware, from John Crispin.
3) Fix some potential Spectre issues in qtnfmac, from Sergey
Matyukevich.
4) Add TTL decrement action to openvswitch, from Matteo Croce.
5) Allow paralleization through flow_action setup by not taking the
RTNL mutex, from Vlad Buslov.
6) A lot of zero-length array to flexible-array conversions, from
Gustavo A. R. Silva.
7) Align XDP statistics names across several drivers for consistency,
from Lorenzo Bianconi.
8) Add various pieces of infrastructure for offloading conntrack, and
make use of it in mlx5 driver, from Paul Blakey.
9) Allow using listening sockets in BPF sockmap, from Jakub Sitnicki.
10) Lots of parallelization improvements during configuration changes
in mlxsw driver, from Ido Schimmel.
11) Add support to devlink for generic packet traps, which report
packets dropped during ACL processing. And use them in mlxsw
driver. From Jiri Pirko.
12) Support bcmgenet on ACPI, from Jeremy Linton.
13) Make BPF compatible with RT, from Thomas Gleixnet, Alexei
Starovoitov, and your's truly.
14) Support XDP meta-data in virtio_net, from Yuya Kusakabe.
15) Fix sysfs permissions when network devices change namespaces, from
Christian Brauner.
16) Add a flags element to ethtool_ops so that drivers can more simply
indicate which coalescing parameters they actually support, and
therefore the generic layer can validate the user's ethtool
request. Use this in all drivers, from Jakub Kicinski.
17) Offload FIFO qdisc in mlxsw, from Petr Machata.
18) Support UDP sockets in sockmap, from Lorenz Bauer.
19) Fix stretch ACK bugs in several TCP congestion control modules,
from Pengcheng Yang.
20) Support virtual functiosn in octeontx2 driver, from Tomasz
Duszynski.
21) Add region operations for devlink and use it in ice driver to dump
NVM contents, from Jacob Keller.
22) Add support for hw offload of MACSEC, from Antoine Tenart.
23) Add support for BPF programs that can be attached to LSM hooks,
from KP Singh.
24) Support for multiple paths, path managers, and counters in MPTCP.
From Peter Krystad, Paolo Abeni, Florian Westphal, Davide Caratti,
and others.
25) More progress on adding the netlink interface to ethtool, from
Michal Kubecek"
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2121 commits)
net: ipv6: rpl_iptunnel: Fix potential memory leak in rpl_do_srh_inline
cxgb4/chcr: nic-tls stats in ethtool
net: dsa: fix oops while probing Marvell DSA switches
net/bpfilter: remove superfluous testing message
net: macb: Fix handling of fixed-link node
net: dsa: ksz: Select KSZ protocol tag
netdevsim: dev: Fix memory leak in nsim_dev_take_snapshot_write
net: stmmac: add EHL 2.5Gbps PCI info and PCI ID
net: stmmac: add EHL PSE0 & PSE1 1Gbps PCI info and PCI ID
net: stmmac: create dwmac-intel.c to contain all Intel platform
net: dsa: bcm_sf2: Support specifying VLAN tag egress rule
net: dsa: bcm_sf2: Add support for matching VLAN TCI
net: dsa: bcm_sf2: Move writing of CFP_DATA(5) into slicing functions
net: dsa: bcm_sf2: Check earlier for FLOW_EXT and FLOW_MAC_EXT
net: dsa: bcm_sf2: Disable learning for ASP port
net: dsa: b53: Deny enslaving port 7 for 7278 into a bridge
net: dsa: b53: Prevent tagged VLAN on port 7 for 7278
net: dsa: b53: Restore VLAN entries upon (re)configuration
net: dsa: bcm_sf2: Fix overflow checks
hv_netvsc: Remove unnecessary round_up for recv_completion_cnt
...
|
||
|
Linus Torvalds
|
3cd86a58f7 |
arm64 updates for 5.7:
- In-kernel Pointer Authentication support (previously only offered to
user space).
- ARM Activity Monitors (AMU) extension support allowing better CPU
utilisation numbers for the scheduler (frequency invariance).
- Memory hot-remove support for arm64.
- Lots of asm annotations (SYM_*) in preparation for the in-kernel
Branch Target Identification (BTI) support.
- arm64 perf updates: ARMv8.5-PMU 64-bit counters, refactoring the PMU
init callbacks, support for new DT compatibles.
- IPv6 header checksum optimisation.
- Fixes: SDEI (software delegated exception interface) double-lock on
hibernate with shared events.
- Minor clean-ups and refactoring: cpu_ops accessor, cpu_do_switch_mm()
converted to C, cpufeature finalisation helper.
- sys_mremap() comment explaining the asymmetric address untagging
behaviour.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
"The bulk is in-kernel pointer authentication, activity monitors and
lots of asm symbol annotations. I also queued the sys_mremap() patch
commenting the asymmetry in the address untagging.
Summary:
- In-kernel Pointer Authentication support (previously only offered
to user space).
- ARM Activity Monitors (AMU) extension support allowing better CPU
utilisation numbers for the scheduler (frequency invariance).
- Memory hot-remove support for arm64.
- Lots of asm annotations (SYM_*) in preparation for the in-kernel
Branch Target Identification (BTI) support.
- arm64 perf updates: ARMv8.5-PMU 64-bit counters, refactoring the
PMU init callbacks, support for new DT compatibles.
- IPv6 header checksum optimisation.
- Fixes: SDEI (software delegated exception interface) double-lock on
hibernate with shared events.
- Minor clean-ups and refactoring: cpu_ops accessor,
cpu_do_switch_mm() converted to C, cpufeature finalisation helper.
- sys_mremap() comment explaining the asymmetric address untagging
behaviour"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (81 commits)
mm/mremap: Add comment explaining the untagging behaviour of mremap()
arm64: head: Convert install_el2_stub to SYM_INNER_LABEL
arm64: Introduce get_cpu_ops() helper function
arm64: Rename cpu_read_ops() to init_cpu_ops()
arm64: Declare ACPI parking protocol CPU operation if needed
arm64: move kimage_vaddr to .rodata
arm64: use mov_q instead of literal ldr
arm64: Kconfig: verify binutils support for ARM64_PTR_AUTH
lkdtm: arm64: test kernel pointer authentication
arm64: compile the kernel with ptrauth return address signing
kconfig: Add support for 'as-option'
arm64: suspend: restore the kernel ptrauth keys
arm64: __show_regs: strip PAC from lr in printk
arm64: unwind: strip PAC from kernel addresses
arm64: mask PAC bits of __builtin_return_address
arm64: initialize ptrauth keys for kernel booting task
arm64: initialize and switch ptrauth kernel keys
arm64: enable ptrauth earlier
arm64: cpufeature: handle conflicts based on capability
arm64: cpufeature: Move cpu capability helpers inside C file
...
|
||
|
Linus Torvalds
|
992a1a3b45 |
CPU (hotplug) updates:
- Support for locked CSD objects in smp_call_function_single_async()
which allows to simplify callsites in the scheduler core and MIPS
- Treewide consolidation of CPU hotplug functions which ensures the
consistency between the sysfs interface and kernel state. The low level
functions cpu_up/down() are now confined to the core code and not
longer accessible from random code.
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Merge tag 'smp-core-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core SMP updates from Thomas Gleixner:
"CPU (hotplug) updates:
- Support for locked CSD objects in smp_call_function_single_async()
which allows to simplify callsites in the scheduler core and MIPS
- Treewide consolidation of CPU hotplug functions which ensures the
consistency between the sysfs interface and kernel state. The low
level functions cpu_up/down() are now confined to the core code and
not longer accessible from random code"
* tag 'smp-core-2020-03-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (22 commits)
cpu/hotplug: Ignore pm_wakeup_pending() for disable_nonboot_cpus()
cpu/hotplug: Hide cpu_up/down()
cpu/hotplug: Move bringup of secondary CPUs out of smp_init()
torture: Replace cpu_up/down() with add/remove_cpu()
firmware: psci: Replace cpu_up/down() with add/remove_cpu()
xen/cpuhotplug: Replace cpu_up/down() with device_online/offline()
parisc: Replace cpu_up/down() with add/remove_cpu()
sparc: Replace cpu_up/down() with add/remove_cpu()
powerpc: Replace cpu_up/down() with add/remove_cpu()
x86/smp: Replace cpu_up/down() with add/remove_cpu()
arm64: hibernate: Use bringup_hibernate_cpu()
cpu/hotplug: Provide bringup_hibernate_cpu()
arm64: Use reboot_cpu instead of hardconding it to 0
arm64: Don't use disable_nonboot_cpus()
ARM: Use reboot_cpu instead of hardcoding it to 0
ARM: Don't use disable_nonboot_cpus()
ia64: Replace cpu_down() with smp_shutdown_nonboot_cpus()
cpu/hotplug: Create a new function to shutdown nonboot cpus
cpu/hotplug: Add new {add,remove}_cpu() functions
sched/core: Remove rq.hrtick_csd_pending
...
|
||
|
Linus Torvalds
|
49835c15a5 |
Power management updates for 5.7-rc1
- Clean up and rework the PM QoS API to simplify the code and
reduce the size of it (Rafael Wysocki).
- Fix a suspend-to-idle wakeup regression on Dell XPS13 9370
and similar platforms where the USB plug/unplug events are
handled by the EC (Rafael Wysocki).
- CLean up the intel_idle and PSCI cpuidle drivers (Rafael Wysocki,
Ulf Hansson).
- Extend the haltpoll cpuidle driver so that it can be forced to
run on some systems where it refused to load (Maciej Szmigiero).
- Convert several cpufreq documents to the .rst format and move the
legacy driver documentation into one common file (Mauro Carvalho
Chehab, Rafael Wysocki).
- Update several cpufreq drivers:
* Extend and fix the imx-cpufreq-dt driver (Anson Huang).
* Improve the -EPROBE_DEFER handling and fix unwanted CPU
overclocking on i.MX6ULL in imx6q-cpufreq (Anson Huang,
Christoph Niedermaier).
* Add support for Krait based SoCs to the qcom driver (Ansuel
Smith).
* Add support for OPP_PLUS to ti-cpufreq (Lokesh Vutla).
* Add platform specific intermediate callbacks support to
cpufreq-dt and update the imx6q driver (Peng Fan).
* Simplify and consolidate some pieces of the intel_pstate driver
and update its documentation (Rafael Wysocki, Alex Hung).
- Fix several devfreq issues:
* Remove unneeded extern keyword from a devfreq header file
and use the DEVFREQ_GOV_UPDATE_INTERNAL event name instead of
DEVFREQ_GOV_INTERNAL (Chanwoo Choi).
* Fix the handling of dev_pm_qos_remove_request() result (Leonard
Crestez).
* Use constant name for userspace governor (Pierre Kuo).
* Get rid of doc warnings and fix a typo (Christophe JAILLET).
- Use built-in RCU list checking in some places in the PM core to
avoid false-positive RCU usage warnings (Madhuparna Bhowmik).
- Add explicit READ_ONCE()/WRITE_ONCE() annotations to low-level
PM QoS routines (Qian Cai).
- Fix removal of wakeup sources to avoid NULL pointer dereferences
in a corner case (Neeraj Upadhyay).
- Clean up the handling of hibernate compat ioctls and fix the
related documentation (Eric Biggers).
- Update the idle_inject power capping driver to use variable-length
arrays instead of zero-length arrays (Gustavo Silva).
- Fix list format in a PM QoS document (Randy Dunlap).
- Make the cpufreq stats module use scnprintf() to avoid potential
buffer overflows (Takashi Iwai).
- Add pm_runtime_get_if_active() to PM-runtime API (Sakari Ailus).
- Allow no domain-idle-states DT property in generic PM domains (Ulf
Hansson).
- Fix a broken y-axis scale in the intel_pstate_tracer utility (Doug
Smythies).
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Merge tag 'pm-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These clean up and rework the PM QoS API, address a suspend-to-idle
wakeup regression on some ACPI-based platforms, clean up and extend a
few cpuidle drivers, update multiple cpufreq drivers and cpufreq
documentation, and fix a number of issues in devfreq and several other
things all over.
Specifics:
- Clean up and rework the PM QoS API to simplify the code and reduce
the size of it (Rafael Wysocki).
- Fix a suspend-to-idle wakeup regression on Dell XPS13 9370 and
similar platforms where the USB plug/unplug events are handled by
the EC (Rafael Wysocki).
- CLean up the intel_idle and PSCI cpuidle drivers (Rafael Wysocki,
Ulf Hansson).
- Extend the haltpoll cpuidle driver so that it can be forced to run
on some systems where it refused to load (Maciej Szmigiero).
- Convert several cpufreq documents to the .rst format and move the
legacy driver documentation into one common file (Mauro Carvalho
Chehab, Rafael Wysocki).
- Update several cpufreq drivers:
* Extend and fix the imx-cpufreq-dt driver (Anson Huang).
* Improve the -EPROBE_DEFER handling and fix unwanted CPU
overclocking on i.MX6ULL in imx6q-cpufreq (Anson Huang,
Christoph Niedermaier).
* Add support for Krait based SoCs to the qcom driver (Ansuel
Smith).
* Add support for OPP_PLUS to ti-cpufreq (Lokesh Vutla).
* Add platform specific intermediate callbacks support to
cpufreq-dt and update the imx6q driver (Peng Fan).
* Simplify and consolidate some pieces of the intel_pstate
driver and update its documentation (Rafael Wysocki, Alex
Hung).
- Fix several devfreq issues:
* Remove unneeded extern keyword from a devfreq header file and
use the DEVFREQ_GOV_UPDATE_INTERNAL event name instead of
DEVFREQ_GOV_INTERNAL (Chanwoo Choi).
* Fix the handling of dev_pm_qos_remove_request() result
(Leonard Crestez).
* Use constant name for userspace governor (Pierre Kuo).
* Get rid of doc warnings and fix a typo (Christophe JAILLET).
- Use built-in RCU list checking in some places in the PM core to
avoid false-positive RCU usage warnings (Madhuparna Bhowmik).
- Add explicit READ_ONCE()/WRITE_ONCE() annotations to low-level PM
QoS routines (Qian Cai).
- Fix removal of wakeup sources to avoid NULL pointer dereferences in
a corner case (Neeraj Upadhyay).
- Clean up the handling of hibernate compat ioctls and fix the
related documentation (Eric Biggers).
- Update the idle_inject power capping driver to use variable-length
arrays instead of zero-length arrays (Gustavo Silva).
- Fix list format in a PM QoS document (Randy Dunlap).
- Make the cpufreq stats module use scnprintf() to avoid potential
buffer overflows (Takashi Iwai).
- Add pm_runtime_get_if_active() to PM-runtime API (Sakari Ailus).
- Allow no domain-idle-states DT property in generic PM domains (Ulf
Hansson).
- Fix a broken y-axis scale in the intel_pstate_tracer utility (Doug
Smythies)"
* tag 'pm-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (78 commits)
cpufreq: intel_pstate: Simplify intel_pstate_cpu_init()
tools/power/x86/intel_pstate_tracer: fix a broken y-axis scale
ACPI: PM: s2idle: Refine active GPEs check
ACPICA: Allow acpi_any_gpe_status_set() to skip one GPE
PM: sleep: wakeup: Skip wakeup_source_sysfs_remove() if device is not there
PM / devfreq: Get rid of some doc warnings
PM / devfreq: Fix handling dev_pm_qos_remove_request result
PM / devfreq: Fix a typo in a comment
PM / devfreq: Change to DEVFREQ_GOV_UPDATE_INTERVAL event name
PM / devfreq: Remove unneeded extern keyword
PM / devfreq: Use constant name of userspace governor
ACPI: PM: s2idle: Fix comment in acpi_s2idle_prepare_late()
cpufreq: qcom: Add support for krait based socs
cpufreq: imx6q-cpufreq: Improve the logic of -EPROBE_DEFER handling
cpufreq: Use scnprintf() for avoiding potential buffer overflow
cpuidle: psci: Split psci_dt_cpu_init_idle()
PM / Domains: Allow no domain-idle-states DT property in genpd when parsing
PM / hibernate: Remove unnecessary compat ioctl overrides
PM: hibernate: fix docs for ioctls that return loff_t via pointer
Documentation: intel_pstate: update links for references
...
|
||
|
Linus Torvalds
|
59838093be |
Driver core patches for 5.7-rc1
Here is the "big" set of driver core changes for 5.7-rc1.
Nothing huge in here, just lots of little firmware core changes and use
of new apis, a libfs fix, a debugfs api change, and some driver core
deferred probe rework.
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH:
"Here is the "big" set of driver core changes for 5.7-rc1.
Nothing huge in here, just lots of little firmware core changes and
use of new apis, a libfs fix, a debugfs api change, and some driver
core deferred probe rework.
All of these have been in linux-next for a while with no reported
issues"
* tag 'driver-core-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (44 commits)
Revert "driver core: Set fw_devlink to "permissive" behavior by default"
driver core: Set fw_devlink to "permissive" behavior by default
driver core: Replace open-coded list_last_entry()
driver core: Read atomic counter once in driver_probe_done()
libfs: fix infoleak in simple_attr_read()
driver core: Add device links from fwnode only for the primary device
platform/x86: touchscreen_dmi: Add info for the Chuwi Vi8 Plus tablet
platform/x86: touchscreen_dmi: Add EFI embedded firmware info support
Input: icn8505 - Switch to firmware_request_platform for retreiving the fw
Input: silead - Switch to firmware_request_platform for retreiving the fw
selftests: firmware: Add firmware_request_platform tests
test_firmware: add support for firmware_request_platform
firmware: Add new platform fallback mechanism and firmware_request_platform()
Revert "drivers: base: power: wakeup.c: Use built-in RCU list checking"
drivers: base: power: wakeup.c: Use built-in RCU list checking
component: allow missing unbind callback
debugfs: remove return value of debugfs_create_file_size()
debugfs: Check module state before warning in {full/open}_proxy_open()
firmware: fix a double abort case with fw_load_sysfs_fallback
arch_topology: Fix putting invalid cpu clk
...
|
||
|
Linus Torvalds
|
db34c5ffee |
USB / PHY patches for 5.7-rc1
Here are the big set of USB and PHY driver patches for 5.7-rc1. Nothing huge here, some new PHY drivers, loads of USB gadget fixes and updates, xhci updates, usb-serial driver updates and new device ids, and other minor things. Full details in the shortlog. All have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXoHL9w8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymz6wCcDwDTZouXj+0B37q+kwlCQQPyLukAn2CxKfrM d+wScRHWoZutA8IdzqaU =5+jn -----END PGP SIGNATURE----- Merge tag 'usb-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / PHY updates from Greg KH: "Here are the big set of USB and PHY driver patches for 5.7-rc1. Nothing huge here, some new PHY drivers, loads of USB gadget fixes and updates, xhci updates, usb-serial driver updates and new device ids, and other minor things. Full details in the shortlog. All have been in linux-next for a while with no reported issues" * tag 'usb-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (239 commits) USB: cdc-acm: restore capability check order usb: cdns3: make signed 1 bit bitfields unsigned usb: gadget: fsl: remove unused variable 'driver_desc' usb: gadget: f_fs: Fix use after free issue as part of queue failure usb: typec: Correct the documentation for typec_cable_put() USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callback USB: serial: option: add Wistron Neweb D19Q1 USB: serial: option: add BroadMobi BM806U USB: serial: option: add support for ASKEY WWHC050 usb: core: Add ACPI support for USB interface devices driver core: platform: Reimplement devm_platform_ioremap_resource usb: dwc2: convert to devm_platform_get_and_ioremap_resource usb: host: hisilicon: convert to devm_platform_get_and_ioremap_resource usb: host: xhci-plat: convert to devm_platform_get_and_ioremap_resource drivers: provide devm_platform_get_and_ioremap_resource() phy: qcom-qusb2: Add new overriding tuning parameters in QUSB2 V2 PHY phy: qcom-qusb2: Add support for overriding tuning parameters in QUSB2 V2 PHY dt-bindings: phy: qcom-qusb2: Add support for overriding Phy tuning parameters phy: qcom-qusb2: Add generic QUSB2 V2 PHY support dt-bindings: phy: qcom,qusb2: Add compatibles for QUSB2 V2 phy and SC7180 ... |
||
|
Linus Torvalds
|
063d194224 |
media updates for v5.7-rc1
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE+QmuaPwR3wnBdVwACF8+vY7k4RUFAl6Bvm0ACgkQCF8+vY7k 4RViMQ//baNJyAA8/Hpxz1w5+nL5hsTOhf2PcPgnCLkRVQnIiKMZoq7AS5KWtbqu im0SM6nWduGc2T/44Ew13YmBnuWMdXL9Gs8XtAkNakgSV1UM+A3pRuOWRYCyU3Ts 1QDsc3N7oY9cvyJGWOlqdcA4gp4AaKxjS6M6Z18wYBk/jYSCcj4ZVecT89DYeeM7 wFORkv/xSdgC3eoKWEwTyglzUmrXKrbfHdcNWrQBg+1SN3WrMYQWCL6nSYMqn0Vu f9L5E6jUSx9s6+apxS0OUQmDj78RM1JCEY1P8lgc3tAtVJ+X3yZbxwtpcvujhFPv c48NUQeyxAJc7evarvkd73Gwl4buujqHSgiRUovHwqUXHJuGZ3PBTryV9HzbmYYy EeHS/23t09F3j9zYtuoDNFIED03Mi+TNeS04cq8OIfwNl7xpUSEV0S/wd11V2308 cfm6lsogGE9HRbaIxCHgx4AiGFVhbpK1OQt66iYze8r/wyxnN8MVOHGWw+eI4LRK 9gwh7Wx37k6uCrjfOnLSgx7kcJ+mxSZEYyHJZqqtPm9H1SC68GOxhL/S3Zu7arvK eiwFfxJBiunCEfauOx28kaAdvBZVyEvYeDFYl/k+q4DCIGjvK0FXud6QRjNXv24S qUXYZKPUALTFOpbkQ3IQiBOQNM4NhF15RzCqRUptVnlF05MSywg= =Ve8R -----END PGP SIGNATURE----- Merge tag 'media/v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - New sensor driver: imx219 - Support for some new pixelformats - Support for Sun8i SoC - Added more codecs to meson vdec driver - Prepare for removing the legacy usbvision driver by moving it to staging. This driver has issues and use legacy core APIs. If nobody steps up to address those, it is time for its retirement. - Several cleanups and improvements on drivers, with the addition of new supported boards * tag 'media/v5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (236 commits) media: venus: firmware: Ignore secure call error on first resume media: mtk-vpu: load vpu firmware from the new location media: i2c: video-i2c: fix build errors due to 'imply hwmon' media: MAINTAINERS: add myself to co-maintain Hantro G1/G2 for i.MX8MQ media: hantro: add initial i.MX8MQ support media: dt-bindings: Document i.MX8MQ VPU bindings media: vivid: fix incorrect PA assignment to HDMI outputs media: hantro: Add linux-rockchip mailing list to MAINTAINERS media: cedrus: h264: Fix 4K decoding on H6 media: siano: Use scnprintf() for avoiding potential buffer overflow media: rc: Use scnprintf() for avoiding potential buffer overflow media: allegro: create new struct for channel parameters media: allegro: move mail definitions to separate file media: allegro: pass buffers through firmware media: allegro: verify source and destination buffer in VCU response media: allegro: handle dependency of bitrate and bitrate_peak media: allegro: read bitrate mode directly from control media: allegro: make QP configurable media: allegro: make frame rate configurable media: allegro: skip filler data if possible ... |
||
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Rafael J. Wysocki
|
ada0629bd3 |
Merge branches 'pm-core', 'pm-sleep', 'pm-acpi' and 'pm-domains'
* pm-core: PM: runtime: Add pm_runtime_get_if_active() * pm-sleep: PM: sleep: wakeup: Skip wakeup_source_sysfs_remove() if device is not there PM / hibernate: Remove unnecessary compat ioctl overrides PM: hibernate: fix docs for ioctls that return loff_t via pointer PM: sleep: wakeup: Use built-in RCU list checking PM: sleep: core: Use built-in RCU list checking * pm-acpi: ACPI: PM: s2idle: Refine active GPEs check ACPICA: Allow acpi_any_gpe_status_set() to skip one GPE ACPI: PM: s2idle: Fix comment in acpi_s2idle_prepare_late() * pm-domains: cpuidle: psci: Split psci_dt_cpu_init_idle() PM / Domains: Allow no domain-idle-states DT property in genpd when parsing |
||
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David S. Miller
|
f0b5989745 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Minor comment conflict in mac80211. Signed-off-by: David S. Miller <davem@davemloft.net> |
||
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David Hildenbrand
|
53cdc1cb29 |
drivers/base/memory.c: indicate all memory blocks as removable
We see multiple issues with the implementation/interface to compute
whether a memory block can be offlined (exposed via
/sys/devices/system/memory/memoryX/removable) and would like to simplify
it (remove the implementation).
1. It runs basically lockless. While this might be good for performance,
we see possible races with memory offlining that will require at
least some sort of locking to fix.
2. Nowadays, more false positives are possible. No arch-specific checks
are performed that validate if memory offlining will not be denied
right away (and such check will require locking). For example, arm64
won't allow to offline any memory block that was added during boot -
which will imply a very high error rate. Other archs have other
constraints.
3. The interface is inherently racy. E.g., if a memory block is detected
to be removable (and was not a false positive at that time), there is
still no guarantee that offlining will actually succeed. So any
caller already has to deal with false positives.
4. It is unclear which performance benefit this interface actually
provides. The introducing commit
|
||
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Greg Kroah-Hartman
|
18555cb6db |
Revert "driver core: Set fw_devlink to "permissive" behavior by default"
This reverts commit
|
||
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Qais Yousef
|
33c3736ec8 |
cpu/hotplug: Hide cpu_up/down()
Use separate functions for the device core to bring a CPU up and down. Users outside the device core must use add/remove_cpu() which will take care of extra housekeeping work like keeping sysfs in sync. Make cpu_up/down() static and replace the extra layer of indirection. [ tglx: Removed the extra wrapper functions and adjusted function names ] Signed-off-by: Qais Yousef <qais.yousef@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200323135110.30522-18-qais.yousef@arm.com |
||
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Neeraj Upadhyay
|
87de6594dc |
PM: sleep: wakeup: Skip wakeup_source_sysfs_remove() if device is not there
Skip wakeup_source_sysfs_remove() to fix a NULL pinter dereference via
ws->dev, if the wakeup source is unregistered before registering the
wakeup class from device_add().
Fixes:
|
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Saravana Kannan
|
c442a0d187 |
driver core: Set fw_devlink to "permissive" behavior by default
Set fw_devlink to "permissive" behavior by default so that device links are automatically created (with DL_FLAG_SYNC_STATE_ONLY) by scanning the firmware. This ensures suppliers get their sync_state() calls only after all their consumers have probed successfully. Without this, suppliers will get their sync_state() calls at late_initcall_sync() even if their consuer Ideally, we'd want to set fw_devlink to "on" or "rpm" by default. But that needs more testing as it's known to break some corner case drivers/platforms. Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: devicetree@vger.kernel.org Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20200321210305.28937-1-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Andy Shevchenko
|
a3a87d66d3 |
driver core: Replace open-coded list_last_entry()
There is a place in the code where open-coded version of list entry accessors list_last_entry() is used. Replace that with the standard macro. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20200324122023.9649-3-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
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Andy Shevchenko
|
927f82875c |
driver core: Read atomic counter once in driver_probe_done()
Between printing the debug message and actual check atomic counter can be altered. For better debugging experience read atomic counter value only once. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Ferry Toth <fntoth@gmail.com> Link: https://lore.kernel.org/r/20200324122023.9649-2-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Dejin Zheng
|
fd78901c29 |
driver core: platform: Reimplement devm_platform_ioremap_resource
Reimplement devm_platform_ioremap_resource() by calling devm_platform_ioremap_and_get_resource() with res = NULL to simplify the code. Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com> Link: https://lore.kernel.org/r/20200323160612.17277-6-zhengdejin5@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Dejin Zheng
|
890cc39a87 |
drivers: provide devm_platform_get_and_ioremap_resource()
Since commit "drivers: provide devm_platform_ioremap_resource()", it was wrap platform_get_resource() and devm_ioremap_resource() as single helper devm_platform_ioremap_resource(). but now, many drivers still used platform_get_resource() and devm_ioremap_resource() together in the kernel tree. The reason can not be replaced is they still need use the resource variables obtained by platform_get_resource(). so provide this helper. Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org> Suggested-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com> Link: https://lore.kernel.org/r/20200323160612.17277-2-zhengdejin5@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Greg Kroah-Hartman
|
d2e971d884 |
Merge 5.6-rc7 into usb-next
We need the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Saravana Kannan
|
4dbe191c04 |
driver core: Add device links from fwnode only for the primary device
Sometimes, more than one (generally two) device can point to the same fwnode. However, only one device is set as the fwnode's device (fwnode->dev) and can be looked up from the fwnode. Typically, only one of these devices actually have a driver and actually probe. If we create device links for all these devices, then the suppliers' of these devices (with the same fwnode) will never get a sync_state() call because one of their consumer devices will never probe (because they don't have a driver). So, create device links only for the device that is considered as the fwnode's device. One such example of this is the PCI bridge platform_device and the corresponding pci_bus device. Both these devices will have the same fwnode. It's the platform_device that is registered first and is set as the fwnode's device. Also the platform_device is the one that actually probes. Without this patch none of the suppliers of a PCI bridge platform_device would get a sync_state() callback. Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: linux-pci@vger.kernel.org Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Saravana Kannan <saravanak@google.com> Link: https://lore.kernel.org/r/20200321045448.15192-1-saravanak@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Hans de Goede
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e4c2c0ff00 |
firmware: Add new platform fallback mechanism and firmware_request_platform()
In some cases the platform's main firmware (e.g. the UEFI fw) may contain an embedded copy of device firmware which needs to be (re)loaded into the peripheral. Normally such firmware would be part of linux-firmware, but in some cases this is not feasible, for 2 reasons: 1) The firmware is customized for a specific use-case of the chipset / use with a specific hardware model, so we cannot have a single firmware file for the chipset. E.g. touchscreen controller firmwares are compiled specifically for the hardware model they are used with, as they are calibrated for a specific model digitizer. 2) Despite repeated attempts we have failed to get permission to redistribute the firmware. This is especially a problem with customized firmwares, these get created by the chip vendor for a specific ODM and the copyright may partially belong with the ODM, so the chip vendor cannot give a blanket permission to distribute these. This commit adds a new platform fallback mechanism to the firmware loader which will try to lookup a device fw copy embedded in the platform's main firmware if direct filesystem lookup fails. Drivers which need such embedded fw copies can enable this fallback mechanism by using the new firmware_request_platform() function. Note that for now this is only supported on EFI platforms and even on these platforms firmware_fallback_platform() only works if CONFIG_EFI_EMBEDDED_FIRMWARE is enabled (this gets selected by drivers which need this), in all other cases firmware_fallback_platform() simply always returns -ENOENT. Reported-by: Dave Olsthoorn <dave@bewaar.me> Suggested-by: Peter Jones <pjones@redhat.com> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20200115163554.101315-5-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Greg Kroah-Hartman
|
99917e37b9 |
Revert "drivers: base: power: wakeup.c: Use built-in RCU list checking"
This reverts commit
|
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Madhuparna Bhowmik
|
8ba88804bb |
drivers: base: power: wakeup.c: Use built-in RCU list checking
Pass cond argument to list_for_each_entry_rcu() to fix the following false positive lockdep warning and other uses of list_for_each_entry_rcu() in wakeup.c. [ 331.934648] ============================= [ 331.934650] WARNING: suspicious RCU usage [ 331.934653] 5.6.0-rc1+ #5 Not tainted [ 331.934655] ----------------------------- [ 331.934657] drivers/base/power/wakeup.c:408 RCU-list traversed in non-reader section!! [ 333.025156] ============================= [ 333.025161] WARNING: suspicious RCU usage [ 333.025168] 5.6.0-rc1+ #5 Not tainted [ 333.025173] ----------------------------- [ 333.025180] drivers/base/power/wakeup.c:424 RCU-list traversed in non-reader section!! Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com> Link: https://lore.kernel.org/r/20200228174745.9308-1-madhuparnabhowmik10@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Marco Felsch
|
14422f14da |
component: allow missing unbind callback
The component framework reuses the devres managed functions. There is no need to specify an unbind() callback if the driver only wants to release the devres managed resources. The bind/unbind is like the probe/remove pair. The bind/probe is necessary and the unbind/remove is optional. Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Link: https://lore.kernel.org/r/20200227104547.30085-1-m.felsch@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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Junyong Sun
|
bcfbd3523f |
firmware: fix a double abort case with fw_load_sysfs_fallback
fw_sysfs_wait_timeout may return err with -ENOENT
at fw_load_sysfs_fallback and firmware is already
in abort status, no need to abort again, so skip it.
This issue is caused by concurrent situation like below:
when thread 1# wait firmware loading, thread 2# may write
-1 to abort loading and wakeup thread 1# before it timeout.
so wait_for_completion_killable_timeout of thread 1# would
return remaining time which is != 0 with fw_st->status
FW_STATUS_ABORTED.And the results would be converted into
err -ENOENT in __fw_state_wait_common and transfered to
fw_load_sysfs_fallback in thread 1#.
The -ENOENT means firmware status is already at ABORTED,
so fw_load_sysfs_fallback no need to get mutex to abort again.
-----------------------------
thread 1#,wait for loading
fw_load_sysfs_fallback
->fw_sysfs_wait_timeout
->__fw_state_wait_common
->wait_for_completion_killable_timeout
in __fw_state_wait_common,
...
93 ret = wait_for_completion_killable_timeout(&fw_st->completion, timeout);
94 if (ret != 0 && fw_st->status == FW_STATUS_ABORTED)
95 return -ENOENT;
96 if (!ret)
97 return -ETIMEDOUT;
98
99 return ret < 0 ? ret : 0;
-----------------------------
thread 2#, write -1 to abort loading
firmware_loading_store
->fw_load_abort
->__fw_load_abort
->fw_state_aborted
->__fw_state_set
->complete_all
in __fw_state_set,
...
111 if (status == FW_STATUS_DONE || status == FW_STATUS_ABORTED)
112 complete_all(&fw_st->completion);
-------------------------------------------
BTW,the double abort issue would not cause kernel panic or create an issue,
but slow down it sometimes.The change is just a minor optimization.
Signed-off-by: Junyong Sun <sunjunyong@xiaomi.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/1583202968-28792-1-git-send-email-sunjunyong@xiaomi.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||
|
Jeffy Chen
|
4dfff3d554 |
arch_topology: Fix putting invalid cpu clk
Add a sanity check before putting the cpu clk.
Fixes:
|
||
|
Heikki Krogerus
|
6fafbbe8d4 |
device property: Export fwnode_get_name()
This makes it possible to take advantage of the function in the device drivers. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/20200302135353.56659-8-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Ulf Hansson
|
56cb26891e |
PM / Domains: Allow no domain-idle-states DT property in genpd when parsing
Commit |
||
|
David S. Miller
|
1d34357931 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Minor overlapping changes, nothing serious. Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|
Christoph Hellwig
|
e3a36eb6df |
driver code: clarify and fix platform device DMA mask allocation
This does three inter-related things to clarify the usage of the platform device dma_mask field. In the process, fix the bug introduced by |
||
|
Zeng Tao
|
4a33691c4c |
cpu-topology: Fix the potential data corruption
Currently there are only 10 bytes to store the cpu-topology 'name' information. Only 10 bytes copied into cluster/thread/core names. If the cluster ID exceeds 2-digit number, it will result in the data corruption, and ending up in a dead loop in the parsing routines. The same applies to the thread names with more that 3-digit number. This issue was found using the boundary tests under virtualised environment like QEMU. Let us increase the buffer to fix such potential issues. Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Zeng Tao <prime.zeng@hisilicon.com> Link: https://lore.kernel.org/r/1583294092-5929-1-git-send-email-prime.zeng@hisilicon.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |