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omap_soc_device_init
kasprintf() returns a pointer to dynamically allocated memory which can
be NULL upon failure. When 'soc_dev_attr->family' is NULL,it'll trigger
the null pointer dereference issue, such as in 'soc_info_show'.
And when 'soc_device_register' fails, it's necessary to release
'soc_dev_attr->family' to avoid memory leaks.
Fixes: 6770b2114325 ("ARM: OMAP2+: Export SoC information to userspace")
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Message-ID: <20231123145237.609442-1-chentao@kylinos.cn>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"Most of changes at this time are for ASoC, spread over ASoC core and
drivers due to the API prefix standardization.
Other than that, there have little change wrt API, rather lots of
driver-specific updates and fixes.
Some highlight below:
ASoC:
- Standardization of API prefix
- GPIO API usage improvements
- Support for HDA patches
- Lots of work on SOF, including crash dump support
- Fixes for noise when stopping some Sounwire CODECs
- Support for AMD platforms with es83xx, AMD ACP 6.3 and 7.0, Awinc
AT87390 and AW88399, many Intel platforms, many Mediatek platforms,
Qualcomm SM6115 and SC7180 platforms, Richtek RTQ9128 and Texas
Instruments TAS575x
HD-audio and USB-audio:
- Deferred probe support of audio component binding
- More fixes and enhancements for Cirrus subcodecs
- USB Scarlett2 mixer and McIntosh DSD quirk
Others:
- More enhancement of snd-aloop driver
- Update MAINTAINERS entry for linux-sound mailing list"
* tag 'sound-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (485 commits)
ALSA: hda: cs35l41: Fix missing error code in cs35l41_smart_amp()
ALSA: hda: cs35l41: mark cs35l41_verify_id() static
ASoC: codecs: wsa883x: make use of new mute_unmute_on_trigger flag
ASoC: soc-dai: add flag to mute and unmute stream during trigger
ASoC: ams-delta.c: use component after check
ASoC: amd: acp: select SND_SOC_AMD_ACP_LEGACY_COMMON for ACP63
ASoC: codecs: aw88399: fix typo in Kconfig select
ASoC: amd: acp: add ACPI dependency
ASoC: Intel: avs: Add rt5514 machine board
ASoC: Intel: avs: Add rt5514 machine board
ALSA: scarlett2: Add missing check with firmware version control
ALSA: virtio: use ack callback
ALSA: scarlett2: Remap Level Meter values
ALSA: scarlett2: Allow passing any output to line_out_remap()
ALSA: scarlett2: Add support for reading firmware version
ALSA: scarlett2: Rename Gen 3 config sets
ALSA: scarlett2: Rename scarlett_gen2 to scarlett2
ASoC: cs35l41: Detect CSPL errors when sending CSPL commands
ALSA: hda: cs35l41: Check CSPL state after loading firmware
ALSA: hda: cs35l41: Do not unload firmware before reset in system suspend
...
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Get fixes needed so we can enable build of ams-delta in more
configurations.
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The %pR format string takes a pointer to struct resource, but this is
passing a pointer to a pointer which it will print wrong information.
Fixes: c63f5b454885 ("ARM: omap2: Use of_range_to_resource() for "ranges" parsing")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Message-ID: <c126dc33-233a-4776-806f-9dff0e73a181@moroto.mountain>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The Pandora uses GPIO descriptors pretty much exclusively, but not
for ASoC, so let's fix it. Register the pins in a descriptor table
in the machine since the ASoC device is not using device tree.
Use static locals for the GPIO descriptors because I'm not able
to experient with better state storage on any real hardware. Others
using the Pandora can come afterwards and improve this.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Link: https://lore.kernel.org/r/20230926-descriptors-asoc-ti-v1-4-60cf4f8adbc5@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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The N810 uses GPIO descriptors pretty much exclusively, but not
for ASoC, so let's fix it. Register the pins in a descriptor table
in the machine since the ASoC device is not using device tree.
Use static locals for the GPIO descriptors because I'm not able
to experient with better state storage on any real hardware. Others
using the N810 can come afterwards and improve this.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Link: https://lore.kernel.org/r/20230926-descriptors-asoc-ti-v1-1-60cf4f8adbc5@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
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We should be able to see real issues with dmesg -l err,warn. The u-boot
revision warning should be a debug statement rather than a warning.
Cc: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Merge in non-critical clean-up that was too late for v6.5.
Signed-off-by: Tony Lindgren <tony@atomide.com>
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The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it was merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Signed-off-by: Rob Herring <robh@kernel.org>
Message-ID: <20230720172743.2918601-1-robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"These are cleanups for architecture specific header files:
- the comments in include/linux/syscalls.h have gone out of sync and
are really pointless, so these get removed
- The asm/bitsperlong.h header no longer needs to be architecture
specific on modern compilers, so use a generic version for newer
architectures that use new enough userspace compilers
- A cleanup for virt_to_pfn/virt_to_bus to have proper type checking,
forcing the use of pointers"
* tag 'asm-generic-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
syscalls: Remove file path comments from headers
tools arch: Remove uapi bitsperlong.h of hexagon and microblaze
asm-generic: Unify uapi bitsperlong.h for arm64, riscv and loongarch
m68k/mm: Make pfn accessors static inlines
arm64: memory: Make virt_to_pfn() a static inline
ARM: mm: Make virt_to_pfn() a static inline
asm-generic/page.h: Make pfn accessors static inlines
xen/netback: Pass (void *) to virt_to_page()
netfs: Pass a pointer to virt_to_page()
cifs: Pass a pointer to virt_to_page() in cifsglob
cifs: Pass a pointer to virt_to_page()
riscv: mm: init: Pass a pointer to virt_to_page()
ARC: init: Pass a pointer to virt_to_pfn() in init
m68k: Pass a pointer to virt_to_pfn() virt_to_page()
fs/proc/kcore.c: Pass a pointer to virt_addr_valid()
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I mistyped one of the SD/MMC GPIO lines on the Nokia n810 which
was supposed to be "vio" as "vsd".
Fix it up.
Reported-by: Peter Vasil <petervasil@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20230614093032.403982-1-linus.walleij@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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If function pwrdm_read_prev_pwrst() returns -EINVAL, we will end
up accessing array pwrdm->state_counter through negative index
-22. This is wrong and the compiler is legitimately warning us
about this potential problem.
Fix this by sanity checking the value stored in variable _prev_
before accessing array pwrdm->state_counter.
Address the following -Warray-bounds warning:
arch/arm/mach-omap2/powerdomain.c:178:45: warning: array subscript -22 is below array bounds of 'unsigned int[4]' [-Warray-bounds]
Link: https://github.com/KSPP/linux/issues/307
Fixes: ba20bb126940 ("OMAP: PM counter infrastructure.")
Cc: stable@vger.kernel.org
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/lkml/20230607050639.LzbPn%25lkp@intel.com/
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Message-ID: <ZIFVGwImU3kpaGeH@work>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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"ranges" is a standard property with common parsing functions. Users
shouldn't be implementing their own parsing of it. Use the recently
added of_range_to_resource() function instead for OMAP hwmod.
Signed-off-by: Rob Herring <robh@kernel.org>
Message-ID: <20230609183252.1767487-1-robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into soc/arm
Clean-up for omaps for v6.5
Two patches for checkpatch warnings, and one change to use pr_err instead
of printk.
* tag 'omap-for-v6.5/cleanup-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: omap2: Fix checkpatch issues
arm: omap1: replace printk() with pr_err macro
ARM: omap: Fix checkpatch issues
Link: https://lore.kernel.org/r/pull-1685946511-835910@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The following checkpatch issues have been resolved:
arch/arm/mach-omap2/omap-wakeupgen.c
WARNING: Missing a blank line after declarations
arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
ERROR: space prohibited before that ',' (ctx:WxE)
WARNING: Use lore.kernel.org archive links when possible
arch/arm/mach-omap2/omap_phy_internal.c
WARNING: Block comments should align the * on each line
arch/arm/mach-omap2/sdrc2xxx.c
WARNING: It's generally not useful to have the filename in the file
arch/arm/mach-omap2/ti81xx-restart.c
ERROR: trailing statements should be on next line
Signed-off-by: Franziska Naepelt <franziska.naepelt@gmail.com>
Message-ID: <20230531170427.42199-1-franziska.naepelt@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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This removes the following checkpatch issues:
- ERROR: space required after that ',' (ctx:VxV)
- WARNING: Comparisons should place the constant on the right side of the test
Signed-off-by: Franziska Naepelt <franziska.naepelt@gmail.com>
Message-Id: <20230530182403.35646-1-franziska.naepelt@gmail.com>
[tony@atomide.com: add space also around '-' in addition to ',']
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Making virt_to_pfn() a static inline taking a strongly typed
(const void *) makes the contract of a passing a pointer of that
type to the function explicit and exposes any misuse of the
macro virt_to_pfn() acting polymorphic and accepting many types
such as (void *), (unitptr_t) or (unsigned long) as arguments
without warnings.
Doing this is a bit intrusive: virt_to_pfn() requires
PHYS_PFN_OFFSET and PAGE_SHIFT to be defined, and this is defined in
<asm/page.h>, so this must be included *before* <asm/memory.h>.
The use of macros were obscuring the unclear inclusion order here,
as the macros would eventually be resolved, but a static inline
like this cannot be compiled with unresolved macros.
The naive solution to include <asm/page.h> at the top of
<asm/memory.h> does not work, because <asm/memory.h> sometimes
includes <asm/page.h> at the end of itself, which would create a
confusing inclusion loop. So instead, take the approach to always
unconditionally include <asm/page.h> at the end of <asm/memory.h>
arch/arm uses <asm/memory.h> explicitly in a lot of places,
however it turns out that if we just unconditionally include
<asm/memory.h> into <asm/page.h> and switch all inclusions of
<asm/memory.h> to <asm/page.h> instead, we enforce the right
order and <asm/memory.h> will always have access to the
definitions.
Put an inclusion guard in place making it impossible to include
<asm/memory.h> explicitly.
Link: https://lore.kernel.org/linux-mm/20220701160004.2ffff4e5ab59a55499f4c736@linux-foundation.org/
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio into soc/arm
This removes all usage of global GPIO numbers from
arch/arm/mach-omap[12].
The patches have been reviewed and tested by everyone
who showed interest which was one person that tested
on OSK1 and Nokia 770, and we smoked out the bugs and
also addressed all review comments.
Any remaining problems can certainly be fixed in-tree.
* tag 'gpio-omap-descriptors-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
ARM/musb: omap2: Remove global GPIO numbers from TUSB6010
ARM: omap2: Rewrite WLAN quirk to use GPIO descriptors
ARM: omap2: Get USB hub reset GPIO from descriptor
ARM/gpio: Push OMAP2 quirk down into TWL4030 driver
ARM: omap1: Exorcise the legacy GPIO header
ARM: omap1: Make serial wakeup GPIOs use descriptors
ARM: omap1: Fix up the Nokia 770 board device IRQs
ARM/mmc: Convert old mmci-omap to GPIO descriptors
Input: ads7846 - Convert to use software nodes
ARM: omap1: Remove reliance on GPIO numbers from SX1
ARM: omap1: Remove reliance on GPIO numbers from PalmTE
ARM: omap1: Drop header on AMS Delta
ARM/mfd/gpio: Fixup TPS65010 regression on OMAP1 OSK1
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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omap2 contains a hack to define tick_broadcast() on non-SMP
configurations in place of the normal SMP definition. This one
causes a warning because of a missing prototype:
arch/arm/mach-omap2/board-generic.c:44:6: error: no previous prototype for 'tick_broadcast'
Make sure to always include the header with the declaration.
Fixes: d86ad463d670 ("ARM: OMAP2+: Fix regression for using local timer on non-SMP SoCs")
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Link: https://lore.kernel.org/r/20230516153109.514251-9-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The TUSB6010 (MUSB) device is picking up some GPIO lines
hardcoded by number and passing on to the TUSB6010 device
when registering it.
Instead of nasty workarounds, provide a GPIO descriptor
table and then make the TUSB6010 MUSB glue driver pick up
the GPIO lines directly, convert it to an IRQ and pass down
to the MUSB driver. OMAP2 is the only system using the
TUSB6010.
Stash the GPIO descriptors in the glue layer and use
then to power up and down the TUSB6010 on-demand, instead
of using boardfile callbacks.
Since the OMAP2 boards are the only boards using the
.set_power() and .board_set_power() callbacks, we can
just delete them as the power is now handled directly
in the TUSB6010 glue code.
Cc: Bin Liu <b-liu@ti.com>
Cc: linux-usb@vger.kernel.org
Fixes: 92bf78b33b0b ("gpio: omap: use dynamic allocation of base")
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The OMAP2 platform data quirk is using the global GPIO numberspace
to obtain two WLAN GPIOs to drive power and xcvr reset GPIO
lines during start-up.
Rewrite the quirk to use a GPIO descriptor table so we avoid using
global GPIO numbers.
This gets rid of the final dependency on the legacy <linux/gpio.h>
header from the OMAP2/3 platforms.
Fixes: 92bf78b33b0b ("gpio: omap: use dynamic allocation of base")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This switches the USB hub GPIO reset line handling in the
OMAP2 pdata quirks over to using GPIO descriptors to avoid using
the global GPIO numberspace.
Since the GPIOs are exported and assumedly used by some kind
of userspace we cannot simply use hogs in the device tree.
Fixes: 92bf78b33b0b ("gpio: omap: use dynamic allocation of base")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The TWL4030 GPIO driver has a custom platform data .set_up()
callback to call back into the platform and do misc stuff such
as hog and export a GPIO for WLAN PWR on a specific OMAP3 board.
Avoid all the kludgery in the platform data and the boardfile
and just put the quirks right into the driver. Make it
conditional on OMAP3.
I think the exported GPIO is used by some kind of userspace
so ordinary DTS hogs will probably not work.
Fixes: 92bf78b33b0b ("gpio: omap: use dynamic allocation of base")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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A recent change to the OMAP driver making it use a dynamic GPIO
base created problems with some old OMAP1 board files, among
them Nokia 770, SX1 and also the OMAP2 Nokia n8x0.
Fix up all instances of GPIOs being used for the MMC driver
by pushing the handling of power, slot selection and MMC
"cover" into the driver as optional GPIOs.
This is maybe not the most perfect solution as the MMC
framework have some central handlers for some of the
stuff, but it at least makes the situtation better and
solves the immediate issue.
Fixes: 92bf78b33b0b ("gpio: omap: use dynamic allocation of base")
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have some new drivers, significant refactoring of existing intel
platforms, lots of improvements all around, mass conversion to using
immutable irqchips by drivers that had not been converted individually
yet and some changes in the core library code.
Summary:
New drivers:
- add a driver for the Loongson GPIO controller
- add a driver for the fxl6408 I2C GPIO expander
- add a GPIO module containing code common for Intel Elkhart Lake and
Merrifield platforms
- add a driver for the Intel Elkhart Lake platform reusing the code
from the intel tangier library
GPIOLIB core:
- GPIO ACPI improvements
- simplify gpiochip_add_data_with_keys() fwnode handling
- cleanup header inclusions (remove unneeded ones, order the rest
alphabetically)
- remove duplicate code (reuse krealloc() instead of open-coding it,
drop a duplicated check in gpiod_find_and_request())
- reshuffle the code to remove unnecessary forward declarations
- coding style cleanups and improvements
- add a helper for accessing device fwnodes
- small updates in docs
Driver improvements:
- convert all remaining GPIO irqchip drivers to using immutable
irqchips
- drop unnecessary of_match_ptr() macro expansions
- shrink the code in gpio-merrifield significantly by reusing the
code from gpio-tangier + minor tweaks to the driver code
- remove MODULE_LICENSE() from drivers that can only be built-in
- add device-tree support to gpio-loongson1
- use new regmap features in gpio-104-dio-48e and gpio-pcie-idio-24
- minor tweaks and fixes to gpio-xra1403, gpio-sim, gpio-tegra194,
gpio-omap, gpio-aspeed, gpio-raspberrypi-exp
- shrink code in gpio-ich and gpio-pxa
- Kconfig tweak for gpio-pmic-eic-sprd"
* tag 'gpio-updates-for-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (99 commits)
gpio: gpiolib: Simplify gpiochip_add_data_with_key() fwnode
gpiolib: Add gpiochip_set_data() helper
gpiolib: Move gpiochip_get_data() higher in the code
gpiolib: Check array_info for NULL only once in gpiod_get_array()
gpiolib: Replace open coded krealloc()
gpiolib: acpi: Add a ignore wakeup quirk for Clevo NL5xNU
gpiolib: acpi: Move ACPI device NULL check to acpi_get_driver_gpio_data()
gpiolib: acpi: use the fwnode in acpi_gpiochip_find()
gpio: mm-lantiq: Fix typo in the newly added header filename
sh: mach-x3proto: Add missing #include <linux/gpio/driver.h>
powerpc/40x: Add missing select OF_GPIO_MM_GPIOCHIP
gpio: xlp: Convert to immutable irq_chip
gpio: xilinx: Convert to immutable irq_chip
gpio: xgs-iproc: Convert to immutable irq_chip
gpio: visconti: Convert to immutable irq_chip
gpio: tqmx86: Convert to immutable irq_chip
gpio: thunderx: Convert to immutable irq_chip
gpio: stmpe: Convert to immutable irq_chip
gpio: siox: Convert to immutable irq_chip
gpio: rda: Convert to immutable irq_chip
...
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Use kzalloc(...) rather than kcalloc(1, ...) because the number of
elements we are specifying in this case is 1, so kzalloc would
accomplish the same thing and we can simplify.
Signed-off-by: Kenneth Lee <klee33@uw.edu>
Message-Id: <20220809072050.1733996-1-klee33@uw.edu>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Return the value amx3_common_init() directly instead of storing it in
another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Message-Id: <20220920065113.215685-1-ye.xingchen@zte.com.cn>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Delete the redundant word 'from'.
Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com>
Message-Id: <20220914084315.40165-1-yuanjilin@cdjrlc.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Commit d42f265a5d7a ("ARM: OMAP3: clock: remove un-used core dpll
re-program code") removes arch/arm/mach-omap2/sram34xx.S, which
implemented the effect of the config OMAP3_SDRC_AC_TIMING. Since then, the
OMAP3_SDRC_AC_TIMING config was hanging around without effect.
Remove this obsolete config.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Message-Id: <20230320083806.9545-1-lukas.bulwahn@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Replace open coded parsing of "reg" with of_address_to_resource().
Signed-off-by: Rob Herring <robh@kernel.org>
Message-Id: <20230319163135.225076-1-robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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It is preferred to use typed property access functions (i.e.
of_property_read_<type> functions) rather than low-level
of_get_property/of_find_property functions for reading properties.
Convert reading boolean properties to to of_property_read_bool().
Signed-off-by: Rob Herring <robh@kernel.org>
Message-Id: <20230310144655.1540793-1-robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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There are only a handful of users of gpio_export() and
related functions.
As these are just wrappers around the modern gpiod_export()
helper, remove the wrappers and open-code the gpio_to_desc
in all callers to shrink the legacy API.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
- Improve the scalability of the CFS bandwidth unthrottling logic with
large number of CPUs.
- Fix & rework various cpuidle routines, simplify interaction with the
generic scheduler code. Add __cpuidle methods as noinstr to objtool's
noinstr detection and fix boatloads of cpuidle bugs & quirks.
- Add new ABI: introduce MEMBARRIER_CMD_GET_REGISTRATIONS, to query
previously issued registrations.
- Limit scheduler slice duration to the sysctl_sched_latency period, to
improve scheduling granularity with a large number of SCHED_IDLE
tasks.
- Debuggability enhancement on sys_exit(): warn about disabled IRQs,
but also enable them to prevent a cascade of followup problems and
repeat warnings.
- Fix the rescheduling logic in prio_changed_dl().
- Micro-optimize cpufreq and sched-util methods.
- Micro-optimize ttwu_runnable()
- Micro-optimize the idle-scanning in update_numa_stats(),
select_idle_capacity() and steal_cookie_task().
- Update the RSEQ code & self-tests
- Constify various scheduler methods
- Remove unused methods
- Refine __init tags
- Documentation updates
- Misc other cleanups, fixes
* tag 'sched-core-2023-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (110 commits)
sched/rt: pick_next_rt_entity(): check list_entry
sched/deadline: Add more reschedule cases to prio_changed_dl()
sched/fair: sanitize vruntime of entity being placed
sched/fair: Remove capacity inversion detection
sched/fair: unlink misfit task from cpu overutilized
objtool: mem*() are not uaccess safe
cpuidle: Fix poll_idle() noinstr annotation
sched/clock: Make local_clock() noinstr
sched/clock/x86: Mark sched_clock() noinstr
x86/pvclock: Improve atomic update of last_value in pvclock_clocksource_read()
x86/atomics: Always inline arch_atomic64*()
cpuidle: tracing, preempt: Squash _rcuidle tracing
cpuidle: tracing: Warn about !rcu_is_watching()
cpuidle: lib/bug: Disable rcu_is_watching() during WARN/BUG
cpuidle: drivers: firmware: psci: Dont instrument suspend code
KVM: selftests: Fix build of rseq test
exit: Detect and fix irq disabled state in oops
cpuidle, arm64: Fix the ARM64 cpuidle logic
cpuidle: mvebu: Fix duplicate flags assignment
sched/fair: Limit sched slice duration
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/soc
Clean-up for omaps for v6.3
Non-urgent fixes for missing of_node_put() and clk_put(), drop few
unnecessary includes, and fix a typo. None of these are urgent and
can be merged along with other clean-up when suitable.
* tag 'omap-for-v6.3/cleanup-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Fix spelling typos in comment
ARM: OMAP2+: Remove unneeded #include <linux/pinctrl/machine.h>
ARM: OMAP2+: Remove unneeded #include <linux/pinctrl/pinmux.h>
ARM: OMAP2+: Fix memory leak in realtime_counter_init()
ARM: OMAP2+: omap4-common: Fix refcount leak bug
Link: https://lore.kernel.org/r/pull-1674566471-434733@atomide.com-2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Fix spelling: adress -> address
Signed-off-by: Nir Levy <bhr166@gmail.com>
Message-Id: <20221123131720.79978-1-bhr166@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Commit 6f3ab009a178098e ("ARM: OMAP2+: Remove unused legacy code for
device init") removed the last user of the pinctrl machine API.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Message-Id: <5dd5e235af9b3def7f4a431edc7bb8504b0681bf.1668001020.git.geert+renesas@glider.be>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Commit 44c22a2d12a5c04d ("ARM: OMAP2+: pm33xx: Add support for rtc+ddr
in self refresh mode") added the include, but no user.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Message-Id: <7f22fb21f76f4d23be2e31a5908bcfa295704ef4.1668000965.git.geert+renesas@glider.be>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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For all cpuidle drivers that use CPUIDLE_FLAG_RCU_IDLE, ensure that
all functions that call ct_cpuidle_enter() are marked __cpuidle.
( due to lack of noinstr validation on these platforms it is entirely
possible this isn't complete )
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20230112195542.274096325@infradead.org
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OMAP was the one and only user.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230112195541.782536366@infradead.org
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arch_cpu_idle() is a very simple idle interface and exposes only a
single idle state and is expected to not require RCU and not do any
tracing/instrumentation.
As such, omap2_pm_idle() is not a valid implementation. Replace it
with a simple (shallow) omap2_do_wfi() call.
Omap2 doesn't have a cpuidle driver; but adding one would be the
recourse to (re)gain the other idle states.
Suggested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230112195541.721697850@infradead.org
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OMAP4 uses full SoC suspend modes as idle states, as such it needs the
whole power-domain and clock-domain code from the idle path.
All that code is not suitable to run with RCU disabled, as such push
RCU-idle deeper still.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lkml.kernel.org/r/Yqcv6crSNKuSWoTu@atomide.com
Link: https://lore.kernel.org/r/20230112195541.660272394@infradead.org
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OMAP3 uses full SoC suspend modes as idle states, as such it needs the
whole power-domain and clock-domain code from the idle path.
All that code is not suitable to run with RCU disabled, as such push
RCU-idle deeper still.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230112195541.599561742@infradead.org
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arch_cpu_idle() is a very simple idle interface and exposes only a
single idle state and is expected to not require RCU and not do any
tracing/instrumentation.
As such, omap_sram_idle() is not a valid implementation. Replace it
with the simple (shallow) omap3_do_wfi() call. Leaving the more
complicated idle states for the cpuidle driver.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230112195541.538053457@infradead.org
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The whole disable-RCU, enable-IRQS dance is very intricate since
changing IRQ state is traced, which depends on RCU.
Add two helpers for the cpuidle case that mirror the entry code:
ct_cpuidle_enter()
ct_cpuidle_exit()
And fix all the cases where the enter/exit dance was buggy.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230112195540.130014793@infradead.org
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Doing RCU-idle outside the driver, only to then temporarily enable it
again, some *four* times, before going idle is suboptimal.
Notably three times explicitly using RCU_NONIDLE() and once implicitly
through cpu_pm_*().
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20230112195540.007918454@infradead.org
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Doing RCU-idle outside the driver, only to then teporarily enable it
again before going idle is suboptimal.
Notably the cpu_pm_*() calls implicitly re-enable RCU for a bit.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20230112195539.883561913@infradead.org
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A number of functions are only called from the file they
are defined in, so remove the extern declarations and
make them local to those files.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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The omap2420_init_late() and omap2430_init_late() functions
are never called. Removing them also shows that the entire
arch/arm/mach-omap2/pm24xx.c file is unused and can be
removed.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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These functions were removed at some point in the
past, but the extraneous declarations were left behind.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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These are a number of individual functions that were either never
used, or that had their last user removed in a prior cleanup.
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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