Migrate phy support from phylib to phylink.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Create separate Link Speed Duplex (LSD) update state function from
lan743x_sgmii_config () to use as subroutine.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Create separate PCS power reset function from lan743x_sgmii_config () to use
as subroutine.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The function allows for the configuration of a fixed link state for a given
phylink instance. This addition is particularly useful for network devices that
operate with a fixed link configuration, where the link parameters do not change
dynamically. By using `phylink_set_fixed_link()`, drivers can easily set up
the fixed link state during initialization or configuration changes.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King <linux@armlinux.org.uk>
Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1. Renesas RPC-IF: adjust default setting for pins to accommodate
different flash devices, which should fix 4-bit flash writes with
Renesas AT25QL128A flash.
2. Simplify a bit probe() in PL172 and PL353-SMC.
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Merge tag 'memory-controller-drv-6.12-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into soc/drivers
Memory controller drivers for v6.12, part two
1. Renesas RPC-IF: adjust default setting for pins to accommodate
different flash devices, which should fix 4-bit flash writes with
Renesas AT25QL128A flash.
2. Simplify a bit probe() in PL172 and PL353-SMC.
* tag 'memory-controller-drv-6.12-2' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl:
memory: pl353-smc: simplify with scoped for each OF child loop
memory: pl172: simplify releasing AMBA regions with devm
memory: renesas-rpc-if: Use Hi-Z state as the default setting for IOVF pins
Link: https://lore.kernel.org/r/20240906140859.71712-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Convert the sugov deadline task attributes to use the available
definitions to make them more readable.
No functional change.
Signed-off-by: Christian Loehle <christian.loehle@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Acked-by: Juri Lelli <juri.lelli@redhat.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20240813144348.1180344-5-christian.loehle@arm.com
Convert the cppc deadline task attributes to use the available
definitions to make them more readable.
No functional change.
Signed-off-by: Christian Loehle <christian.loehle@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Juri Lelli <juri.lelli@redhat.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20240813144348.1180344-4-christian.loehle@arm.com
Specify the time values of the deadline parameters of deadline,
runtime, and period as being in nanoseconds explicitly as they always
have been.
Signed-off-by: Christian Loehle <christian.loehle@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Juri Lelli <juri.lelli@redhat.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20240813144348.1180344-3-christian.loehle@arm.com
chrt has SCHED_DEADLINE support so convert the example instead of
relying on a schedtool fork. While at it fix the wrong mentioning
of microseconds, it was nanoseconds for both schedtool and chrt.
Signed-off-by: Christian Loehle <christian.loehle@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Juri Lelli <juri.lelli@redhat.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20240813144348.1180344-2-christian.loehle@arm.com
Two patches, enabling clock and pinctrl support in defconfig for Sopghgo
devices.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
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Merge tag 'riscv-config-for-v6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux into soc/defconfig
RISC-V config for v6.12
Two patches, enabling clock and pinctrl support in defconfig for Sopghgo
devices.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
* tag 'riscv-config-for-v6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux:
riscv: defconfig: Enable pinctrl support for CV18XX Series SoC
riscv: defconfig: sophgo: enable clks for sg2042
Link: https://lore.kernel.org/r/20240910-annex-ravage-07d63041a7c5@spud
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
These two functions have a stub definition when CONFIG_IMX_SCMI_MISC_EXT
is not set, which conflict with the global definition:
In file included from drivers/firmware/imx/sm-misc.c:6:
include/linux/firmware/imx/sm.h:30:1: error: expected identifier or '(' before '{' token
30 | {
| ^
drivers/firmware/imx/sm-misc.c:26:5: error: redefinition of 'scmi_imx_misc_ctrl_get'
26 | int scmi_imx_misc_ctrl_get(u32 id, u32 *num, u32 *val)
| ^~~~~~~~~~~~~~~~~~~~~~
include/linux/firmware/imx/sm.h:24:19: note: previous definition of 'scmi_imx_misc_ctrl_get' with type 'int(u32, u32 *, u32 *)' {aka 'int(unsigned int, unsigned int *, unsigned int *)'}
24 | static inline int scmi_imx_misc_ctrl_get(u32 id, u32 *num, u32 *val)
| ^~~~~~~~~~~~~~~~~~~~~~
There is no real need for the #ifdef, and removing this avoids
the build failure.
Fixes: 0b4f8a68b2 ("firmware: imx: Add i.MX95 MISC driver")
Link: https://lore.kernel.org/r/20240909203023.1275232-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
StarFive:
A fix to return one of the clocks on the JH7110 from 1 GHz to 1.5 GHz
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
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Merge tag 'riscv-soc-fixes-for-v6.11-final' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux into arm/fixes
RISC-V soc fixes for v6.11-final
StarFive:
A fix to return one of the clocks on the JH7110 from 1 GHz to 1.5 GHz
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
* tag 'riscv-soc-fixes-for-v6.11-final' of https://git.kernel.org/pub/scm/linux/kernel/git/conor/linux:
riscv: dts: starfive: jh7110-common: Fix lower rate of CPUfreq by setting PLL0 rate to 1.5GHz
Link: https://lore.kernel.org/r/20240909-hybrid-groovy-601a33b5b309@spud
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Pin controllers pio and r_pio will have proper regulators assigned.
Signed-off-by: Kryštof Černý <cleverline1mc@gmail.com>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Link: https://lore.kernel.org/r/20240905-nanopi-neo-plus2-regfix-v3-2-1895dff59598@gmail.com
[wens@csie.org: Make "h5" lowercase to match most commits]
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
There is still a build failure when the rwrng support is in a loadable
module but the mcu driver is built-in:
arm-linux-gnueabi-ld: drivers/platform/cznic/turris-omnia-mcu-trng.o: in function `omnia_mcu_register_trng':
turris-omnia-mcu-trng.c:(.text.omnia_mcu_register_trng+0x11c): undefined reference to `devm_hwrng_register'
Change the dependency to explicitly disallow the broken
configuration.
Fixes: 41bb142a40 ("platform: cznic: turris-omnia-mcu: Add support for MCU provided TRNG")
Reviewed-by: Marek Behún <kabel@kernel.org>
Link: https://lore.kernel.org/r/20240909110417.247453-1-arnd@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
6.12, please pull the following:
- Andrea adds a minimal Device Tree for the Raspberry Pi 5 (2712)
- Stefan adjusts the bcm2837/bcm2712 bcm2836-l1-intc node name to
conform to the binding changes
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Merge tag 'arm-soc/for-6.12/devicetree-arm64' of https://github.com/Broadcom/stblinux into soc/dt
This pull request contains Broadcom ARM64 SoCs Device Tree changes for
6.12, please pull the following:
- Andrea adds a minimal Device Tree for the Raspberry Pi 5 (2712)
- Stefan adjusts the bcm2837/bcm2712 bcm2836-l1-intc node name to
conform to the binding changes
* tag 'arm-soc/for-6.12/devicetree-arm64' of https://github.com/Broadcom/stblinux:
ARM: dts: bcm2837/bcm2712: adjust local intc node names
arm64: dts: broadcom: Add minimal support for Raspberry Pi 5
Link: https://lore.kernel.org/r/20240906180643.2275460-2-florian.fainelli@broadcom.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
- add ADC node to the different PMICs
mt7981:
- Add SPI controller nodes.
mt8183:
- use referenced label for DSI endpoint.
- disable soc_data efuse node, which does not has any cell definde
(kukui).
- fix the regulator tree (kukui).
- fix potential deadlock by removing not needed clock in the MFG async
power domain.
- add DPI node.
mt8186:
- fix opp-supported-hw mask for GPU.
- add lvts thermal sensor node.
- add thermal zones.
- fix reserved memory region of ADSP firmware (corsola).
- add power domain to DPI node.
- add SVS node.
- fix internal display by disabling the external display temporarily
(corsola).
mt8188:
- add thermal sensor for the AP.
- add thermal zones.
mt8195:
- fix pull resistance for hdmi pins (cherry).
- remove keyboard backlight node (cherry), this is detected through
ChromeOS EC communication.
- fix warning in mdp3 driver by providing a phandel to the SCP.
- fix probe error of the USB controller by disabeling USB3 on the
controller (cherry).
- assign per default both phys to the USB controller (cherry).
- fix binding validation by re-ordering the dp_intf clocks.
mt8365:
- add AFE audio controller.
- add AFE and audio codec support (evk).
mt8395:
- fix probe error of the USB controller by disabeling USB3 on the
controller (radax-nio-12l).
- assign per default both phys to the USB controller (genio, kontron,
radax).
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Merge tag 'v6.11-next-dts64' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux into soc/dt
mt63xx:
- add ADC node to the different PMICs
mt7981:
- Add SPI controller nodes.
mt8183:
- use referenced label for DSI endpoint.
- disable soc_data efuse node, which does not has any cell definde
(kukui).
- fix the regulator tree (kukui).
- fix potential deadlock by removing not needed clock in the MFG async
power domain.
- add DPI node.
mt8186:
- fix opp-supported-hw mask for GPU.
- add lvts thermal sensor node.
- add thermal zones.
- fix reserved memory region of ADSP firmware (corsola).
- add power domain to DPI node.
- add SVS node.
- fix internal display by disabling the external display temporarily
(corsola).
mt8188:
- add thermal sensor for the AP.
- add thermal zones.
mt8195:
- fix pull resistance for hdmi pins (cherry).
- remove keyboard backlight node (cherry), this is detected through
ChromeOS EC communication.
- fix warning in mdp3 driver by providing a phandel to the SCP.
- fix probe error of the USB controller by disabeling USB3 on the
controller (cherry).
- assign per default both phys to the USB controller (cherry).
- fix binding validation by re-ordering the dp_intf clocks.
mt8365:
- add AFE audio controller.
- add AFE and audio codec support (evk).
mt8395:
- fix probe error of the USB controller by disabeling USB3 on the
controller (radax-nio-12l).
- assign per default both phys to the USB controller (genio, kontron,
radax).
* tag 'v6.11-next-dts64' of https://git.kernel.org/pub/scm/linux/kernel/git/mediatek/linux: (25 commits)
arm64: dts: mediatek: add audio support for mt8365-evk
arm64: dts: mediatek: add afe support for mt8365 SoC
arm64: dts: mediatek: mt8186-corsola: Disable DPI display interface
arm64: dts: mediatek: mt8186: Add svs node
arm64: dts: mediatek: mt8186: Add power domain for DPI
arm64: dts: mediatek: mt8195: Correct clock order for dp_intf*
arm64: dts: mt8183: add dpi node to mt8183
arm64: dts: mediatek: mt8186-corsola: Update ADSP reserved memory region
arm64: dts: mediatek: mt8183: Remove clock from mfg_async power domain
arm64: dts: mt8183-kukui: clean up regulator tree
arm64: dts: mediatek: mt7981: add SPI controllers
arm64: dts: mediatek: mt8183-kukui: Disable unused efuse at 8000000
arm64: dts: mediatek: mt8188: add default thermal zones
arm64: dts: mediatek: mt8188: add lvts definitions
arm64: dts: mediatek: mt8186: add default thermal zones
arm64: dts: mediatek: mt8186: add lvts definitions
arm64: dts: mediatek: mt8195: Assign USB 3.0 PHY to xhci1 by default
arm64: dts: mediatek: mt8395-nio-12l: Mark USB 3.0 on xhci1 as disabled
arm64: dts: mediatek: mt8195-cherry: Mark USB 3.0 on xhci1 as disabled
arm64: dts: mediatek: mt8195: Add SCP phandle to MDP3 DMA controller
...
Link: https://lore.kernel.org/r/059656ad-5365-4097-86a1-f4ba43edf5da@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
please pull the following:
- Krzysztof documents the AVS monitor binding present on 2711 (Raspberry
Pi 4)
- Rafal updates the Broadcom Northstar DTS files to use the recent NVMEM
binding
- Artur factors the nodes between the BCM21664 and BCM23550 SoCs since
they are nearly identical
- Stefan converts the bcm2835-system-timer and bcm2836-l1-intc to a YAML
binding syntax
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Merge tag 'arm-soc/for-6.12/devicetree' of https://github.com/Broadcom/stblinux into soc/dt
This pull request contains Broadcom SoCs Device Tree changes for 6.12,
please pull the following:
- Krzysztof documents the AVS monitor binding present on 2711 (Raspberry
Pi 4)
- Rafal updates the Broadcom Northstar DTS files to use the recent NVMEM
binding
- Artur factors the nodes between the BCM21664 and BCM23550 SoCs since
they are nearly identical
- Stefan converts the bcm2835-system-timer and bcm2836-l1-intc to a YAML
binding syntax
* tag 'arm-soc/for-6.12/devicetree' of https://github.com/Broadcom/stblinux:
dt-bindings: interrupt-controller: convert bcm2836-l1-intc to yaml
dt-bindings: timer: convert bcm2835-system-timer bindings to YAML
ARM: dts: bcm-mobile: Split out nodes used by both BCM21664 and BCM23550
ARM: dts: broadcom: bcm21664: Move chosen node into Garnet DTS
ARM: dts: broadcom: convert NVMEM content to layout syntax
dt-bindings: soc: bcm: document brcm,bcm2711-avs-monitor
Link: https://lore.kernel.org/r/20240906180643.2275460-1-florian.fainelli@broadcom.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
1. Realview: correct unit addresses (e.g. drop when not valid).
2. Nuvoton: correct node name to match bindings.
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Merge tag 'dt-cleanup-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt into soc/dt
Minor improvements in ARM DTS for v6.12
1. Realview: correct unit addresses (e.g. drop when not valid).
2. Nuvoton: correct node name to match bindings.
* tag 'dt-cleanup-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt:
ARM: dts: nuvoton: wpcm450: align LED and GPIO keys node name with bindings
arm: dts: realview: Add/drop missing/spurious unit-addreses
Link: https://lore.kernel.org/r/20240906140513.71307-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* Enable High Impedance pin configuration support for Intel pin control
* Miscellaneous small improvements here and there
The following is an automated git shortlog grouped by driver:
baytrail:
- Drop duplicate return statement
intel:
- Constify struct intel_pinctrl parameter
- Inline intel_gpio_community_irq_handler()
- Introduce for_each_intel_gpio_group() helper et al.
- Constify intel_get_community() returned object
- Implement high impedance support
- Add __intel_gpio_get_direction() helper
- Refactor __intel_gpio_set_direction() to be more useful
- Move debounce validation out of the lock
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Merge tag 'intel-pinctrl-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel
intel-pinctrl for v6.12-1
* Enable High Impedance pin configuration support for Intel pin control
* Miscellaneous small improvements here and there
The following is an automated git shortlog grouped by driver:
baytrail:
- Drop duplicate return statement
intel:
- Constify struct intel_pinctrl parameter
- Inline intel_gpio_community_irq_handler()
- Introduce for_each_intel_gpio_group() helper et al.
- Constify intel_get_community() returned object
- Implement high impedance support
- Add __intel_gpio_get_direction() helper
- Refactor __intel_gpio_set_direction() to be more useful
- Move debounce validation out of the lock
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
1. APM: correct node name to match bindings.
2. Spreadtrum: correct node names to match bindings, order properties to
match DTS coding style and put SPDX identifier at top of the file as
expected usually.
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Merge tag 'dt64-cleanup-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt into soc/dt
Minor improvements in ARM64 DTS for v6.12
1. APM: correct node name to match bindings.
2. Spreadtrum: correct node names to match bindings, order properties to
match DTS coding style and put SPDX identifier at top of the file as
expected usually.
* tag 'dt64-cleanup-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-dt:
arm64: dts: sprd: move/add SPDX license to top of the file
arm64: dts: sprd: reorder clock-names after clocks
arm64: dts: sprd: rename SDHCI and fuel gauge nodes to match bindings
arm64: dts: apm: storm: Rename menetphy@3 to ethernet-phy@3
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
After commit 0edb555a65 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all can drivers to use .remove(), with the eventual goal to drop
struct platform_driver::remove_new(). As .remove() and .remove_new() have
the same prototypes, conversion is done by just changing the structure
member name in the driver initializer.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/20240909072742.381003-2-u.kleine-koenig@baylibre.com
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
This reverts commit ab8d66d132 because it
breaks codecs using non-continuous masks in source and sink ports. The
commit missed the point that port numbers are not used as indices for
iterating over prop.sink_ports or prop.source_ports.
Soundwire core and existing codecs expect that the array passed as
prop.sink_ports and prop.source_ports is continuous. The port mask still
might be non-continuous, but that's unrelated.
Reported-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Closes: https://lore.kernel.org/all/b6c75eee-761d-44c8-8413-2a5b34ee2f98@linux.intel.com/
Fixes: ab8d66d132 ("soundwire: stream: fix programming slave ports for non-continous port maps")
Acked-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Cc: stable@vger.kernel.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20240909164746.136629-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Since recently in the commit e469e2045f ("ALSA: memalloc: Let IOMMU
handle S/G primarily"), the SG buffer allocation code was modified to
use the standard DMA code primarily and the fallback is applied only
limitedly. This made the Xen PV specific workarounds we took in the
commit 53466ebdec ("ALSA: memalloc: Workaround for Xen PV") rather
superfluous.
It was a hackish workaround for the regression at that time, and it
seems that it's causing another issues (reportedly memory
corruptions). So it's better to clean it up, after all.
Link: https://lore.kernel.org/20240906184209.25423-1-ariadne@ariadne.space
Cc: Ariadne Conill <ariadne@ariadne.space>
Link: https://patch.msgid.link/20240910113100.32542-1-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The CM9825 is a High Definition Audio Codec.
There are 2 independent stereo outputs, one of the stereo
outputs is cap-less with HP AMP, and the other is line out to
connect the active speaker. The inputs can be Line-in and MIC-in.
Signed-off-by: Leo Tsai <antivirus621@gmail.com>
Link: https://patch.msgid.link/20240910065542.6534-1-antivirus621@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Probing xen-fbfront faults in video_is_primary_device(). The passed-in
struct device is NULL since xen-fbfront doesn't assign it and the
memory is kzalloc()-ed. Assign fb_info->device to avoid this.
This was exposed by the conversion of fb_is_primary_device() to
video_is_primary_device() which dropped a NULL check for struct device.
Fixes: f178e96de7 ("arch: Remove struct fb_info from video helpers")
Reported-by: Arthur Borsboom <arthurborsboom@gmail.com>
Closes: https://lore.kernel.org/xen-devel/CALUcmUncX=LkXWeiSiTKsDY-cOe8QksWhFvcCneOKfrKd0ZajA@mail.gmail.com/
Tested-by: Arthur Borsboom <arthurborsboom@gmail.com>
CC: stable@vger.kernel.org
Signed-off-by: Jason Andryuk <jason.andryuk@amd.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
The icache will be flushed in switch_to() if force_icache_flush is true,
or in flush_icache_deferred() if icache_stale_mask is set. Between
setting force_icache_flush to false and calculating the new
icache_stale_mask, preemption needs to be disabled. There are two
reasons for this:
1. If CPU migration happens between force_icache_flush = false, and the
icache_stale_mask is set, an icache flush will not be emitted.
2. smp_processor_id() is used in set_icache_stale_mask() to mark the
current CPU as not needing another flush since a flush will have
happened either by userspace or by the kernel when performing the
migration. smp_processor_id() is currently called twice with preemption
enabled which causes a race condition. It allows
icache_stale_mask to be populated with inconsistent CPU ids.
Resolve these two issues by setting the icache_stale_mask before setting
force_icache_flush to false, and using get_cpu()/put_cpu() to obtain the
smp_processor_id().
Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Fixes: 6b9391b581 ("riscv: Include riscv_set_icache_flush_ctx prctl")
Link: https://lore.kernel.org/r/20240903-fix_fencei_optimization-v2-1-8025f20171fc@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
syzbot reports a f2fs bug as below:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 58 at kernel/rcu/sync.c:177 rcu_sync_dtor+0xcd/0x180 kernel/rcu/sync.c:177
CPU: 1 UID: 0 PID: 58 Comm: kworker/1:2 Not tainted 6.10.0-syzkaller-12562-g1722389b0d86 #0
Workqueue: events destroy_super_work
RIP: 0010:rcu_sync_dtor+0xcd/0x180 kernel/rcu/sync.c:177
Call Trace:
percpu_free_rwsem+0x41/0x80 kernel/locking/percpu-rwsem.c:42
destroy_super_work+0xec/0x130 fs/super.c:282
process_one_work kernel/workqueue.c:3231 [inline]
process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312
worker_thread+0x86d/0xd40 kernel/workqueue.c:3390
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
As Christian Brauner pointed out [1]: the root cause is f2fs sets
SB_RDONLY flag in internal function, rather than setting the flag
covered w/ sb->s_umount semaphore via remount procedure, then below
race condition causes this bug:
- freeze_super()
- sb_wait_write(sb, SB_FREEZE_WRITE)
- sb_wait_write(sb, SB_FREEZE_PAGEFAULT)
- sb_wait_write(sb, SB_FREEZE_FS)
- f2fs_handle_critical_error
- sb->s_flags |= SB_RDONLY
- thaw_super
- thaw_super_locked
- sb_rdonly() is true, so it skips
sb_freeze_unlock(sb, SB_FREEZE_FS)
- deactivate_locked_super
Since f2fs has almost the same logic as ext4 [2] when handling critical
error in filesystem if it mounts w/ errors=remount-ro option:
- set CP_ERROR_FLAG flag which indicates filesystem is stopped
- record errors to superblock
- set SB_RDONLY falg
Once we set CP_ERROR_FLAG flag, all writable interfaces can detect the
flag and stop any further updates on filesystem. So, it is safe to not
set SB_RDONLY flag, let's remove the logic and keep in line w/ ext4 [3].
[1] https://lore.kernel.org/all/20240729-himbeeren-funknetz-96e62f9c7aee@brauner
[2] https://lore.kernel.org/all/20240729132721.hxih6ehigadqf7wx@quack3
[3] https://lore.kernel.org/linux-ext4/20240805201241.27286-1-jack@suse.cz
Fixes: b62e71be21 ("f2fs: support errors=remount-ro|continue|panic mountoption")
Reported-by: syzbot+20d7e439f76bbbd863a7@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/000000000000b90a8e061e21d12f@google.com/
Cc: Jan Kara <jack@suse.cz>
Cc: Christian Brauner <brauner@kernel.org>
Signed-off-by: Chao Yu <chao@kernel.org>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
We need to introduce a valid block ratio threshold not to trigger
excessive GC for zoned deivces. The initial value of it is 95%. So, F2FS
will stop the thread from intiating GC for sections having valid blocks
exceeding the ratio.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Added control knobs for gc_no_zoned_gc_percent and
gc_boost_zoned_gc_percent.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Under low free section count, we need to use FG_GC instead of BG_GC to
recover free sections.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
For the fine tuning of GC behavior, add reserved_segments sysfs node.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
We can control the scanning window granularity for GC migration. For
more frequent scanning and GC on zoned devices, we need a fine grained
control knob for it.
Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
