Now that the driver core allows for struct class to be in read-only
memory, move the mei_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230811213052.85044-1-ivan.orlov0322@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The devm_nvmem_register() function returns error pointers. It never
returns NULL. Update the checks accordingly.
Fixes: 0969001569 ("misc: microchip: pci1xxxx: Add support to read and write into PCI1XXXX OTP via NVMEM sysfs")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/043df330-222b-4c2c-ae19-ed2f731bfe0b@moroto.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is no need to call the dev_err_probe() function directly to print
a custom message when handling an error from platform_get_irq_byname()
function as it is going to display an appropriate error message
in case of a failure.
Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Link: https://lore.kernel.org/r/20230807093010.2112302-1-ruanjinjie@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that the driver core allows for struct class to be in read-only
memory, move the ilo_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230810194239.26892-1-ivan.orlov0322@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Now that the driver core allows for struct class to be in read-only
memory, move the class_genwqe structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time. Update the 'class_genwqe' field of the
'genwqe_dev' struct correspondingly.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20230810182711.22664-1-ivan.orlov0322@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use the helper function devm_kmemdup() rather than duplicating its
implementation, which helps to enhance code readability.
Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Link: https://lore.kernel.org/r/20230810115049.2104099-1-lizetao1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Due to a silicon bug, ESM on TPS6594 PMIC revision 1 is not working
properly. This patch keeps SOC ESM disabled for such PMIC.
Fixes: 875fdd0787 ("misc: tps6594-esm: Add driver for TI TPS6594 ESM")
Co-developed-by: Julien Panis <jpanis@baylibre.com>
Signed-off-by: Julien Panis <jpanis@baylibre.com>
Signed-off-by: Esteban Blanc <eblanc@baylibre.com>
Link: https://lore.kernel.org/r/20230726-tps6594_fix_esm_for_v1-v1-1-2adfdcad31c2@baylibre.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ASPM Mode is ASPM_MODE_CFG need to judge the value of clkreq_0
to set HIGH or LOW, if the ASPM Mode is ASPM_MODE_REG
always set to HIGH during the initialization.
Cc: stable@vger.kernel.org
Signed-off-by: Ricky Wu <ricky_wu@realtek.com>
Link: https://lore.kernel.org/r/52906c6836374c8cb068225954c5543a@realtek.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
As &vk->ctx_lock is acquired by timer bcm_vk_hb_poll() under softirq
context, other process context code should disable irq or bottom-half
before acquire the same lock, otherwise deadlock could happen if the
timer preempt the execution while the lock is held in process context
on the same CPU.
Possible deadlock scenario
bcm_vk_open()
-> bcm_vk_get_ctx()
-> spin_lock(&vk->ctx_lock)
<timer iterrupt>
-> bcm_vk_hb_poll()
-> bcm_vk_blk_drv_access()
-> spin_lock_irqsave(&vk->ctx_lock, flags) (deadlock here)
This flaw was found using an experimental static analysis tool we are
developing for irq-related deadlock, which reported the following
warning when analyzing the linux kernel 6.4-rc7 release.
[Deadlock]: &vk->ctx_lock
[Interrupt]: bcm_vk_hb_poll
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_msg.c:176
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_dev.c:512
[Locking Unit]: bcm_vk_ioctl
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_dev.c:1181
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_dev.c:512
[Deadlock]: &vk->ctx_lock
[Interrupt]: bcm_vk_hb_poll
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_msg.c:176
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_dev.c:512
[Locking Unit]: bcm_vk_ioctl
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_dev.c:1169
[Deadlock]: &vk->ctx_lock
[Interrupt]: bcm_vk_hb_poll
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_msg.c:176
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_dev.c:512
[Locking Unit]: bcm_vk_open
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_msg.c:216
[Deadlock]: &vk->ctx_lock
[Interrupt]: bcm_vk_hb_poll
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_msg.c:176
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_dev.c:512
[Locking Unit]: bcm_vk_release
-->/root/linux/drivers/misc/bcm-vk/bcm_vk_msg.c:306
As suggested by Arnd, the tentative patch fix the potential deadlocks
by replacing the timer with delay workqueue. x86_64 allyesconfig using
GCC shows no new warning. Note that no runtime testing was performed
due to no device on hand.
Signed-off-by: Chengfeng Ye <dg573847474@gmail.com>
Acked-by: Scott Branden <scott.branden@broadcom.com>
Tested-by: Desmond Yan <desmond.branden@broadcom.com>
Tested-by: Desmond Yan <desmond.yan@broadcom.com>
Link: https://lore.kernel.org/r/20230629182941.13045-1-dg573847474@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
On s390 systems (aka mainframes), it has classic channel devices for
networking and permanent storage that are currently even more common
than PCI devices. Hence it could have a fully functional s390 kernel
with CONFIG_PCI=n, then the relevant iomem mapping functions
[including ioremap(), devm_ioremap(), etc.] are not available.
Here let OPEN_DICE depend on HAS_IOMEM so that it won't be built
to cause below compiling error if PCI is unset:
------
ERROR: modpost: "devm_memremap" [drivers/misc/open-dice.ko] undefined!
ERROR: modpost: "devm_memunmap" [drivers/misc/open-dice.ko] undefined!
------
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202306211329.ticOJCSv-lkp@intel.com/
Signed-off-by: Baoquan He <bhe@redhat.com>
Cc: Derek Kiernan <derek.kiernan@amd.com>
Cc: Dragan Cvetic <dragan.cvetic@amd.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20230707135852.24292-4-bhe@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
There is no need to call the dev_err() function directly to print a custom
message when handling an error from the platform_get_irq() function as it
is going to display an appropriate error message in case of a failure.
Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Link: https://lore.kernel.org/r/20230726180707.2486808-1-ruanjinjie@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as 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.
Acked-by: Andrew Donnellan <ajd@linux.ibm.com> # cxl
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230718143102.1065481-1-robh@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
There are two calls that can go wrong in tps6594_esm_remove(); for both
there is already an error message. Not returning the error code has the
only side effect of suppressing (another) error message by the core
about the error being ignored. So tps6594_esm_remove() can be converted
to return void without any loss.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230710082311.3474785-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is ignored (apart
from emitting a warning) and this typically results in resource leaks.
To improve here there is a quest to make the remove callback return
void. In the first step of this quest all drivers are converted to
.remove_new() which already returns void. Eventually after all drivers
are converted, .remove_new() is renamed to .remove().
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Link: https://lore.kernel.org/r/20230707073343.3396477-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20230707024224.78907-3-frank.li@vivo.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Reviewed-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/20230707024224.78907-2-frank.li@vivo.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Link: https://lore.kernel.org/r/20230707024224.78907-1-frank.li@vivo.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Microchip's pci1xxxx is an unmanaged PCIe3.1a switch for consumer,
industrial, and automotive applications. This switch integrates OTP
and EEPROM to enable customization of the part in the field.
This patch adds support to read and write into PCI1XXXX EEPROM
via NVMEM sysfs.
Signed-off-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
Co-developed-by: Tharun Kumar P <tharunkumar.pasumarthi@microchip.com>
Signed-off-by: Tharun Kumar P <tharunkumar.pasumarthi@microchip.com>
Co-developed-by: Vaibhaav Ram T.L <vaibhaavram.tl@microchip.com>
Signed-off-by: Vaibhaav Ram T.L <vaibhaavram.tl@microchip.com>
Link: https://lore.kernel.org/r/20230620143520.858-3-vaibhaavram.tl@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Microchip's pci1xxxx is an unmanaged PCIe3.1a switch for consumer,
industrial, and automotive applications. This switch integrates OTP
and EEPROM to enable customization of the part in the field. This
patch adds support to read and write into PCI1XXXX OTP via NVMEM sysfs.
Signed-off-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
Co-developed-by: Tharun Kumar P <tharunkumar.pasumarthi@microchip.com>
Signed-off-by: Tharun Kumar P <tharunkumar.pasumarthi@microchip.com>
Co-developed-by: Vaibhaav Ram T.L <vaibhaavram.tl@microchip.com>
Signed-off-by: Vaibhaav Ram T.L <vaibhaavram.tl@microchip.com>
Link: https://lore.kernel.org/r/20230620143520.858-2-vaibhaavram.tl@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Modern GSC firmwares have both static and dynamic MKHI clients.
Avoid expensive dynamic client call for firmware version retrieval,
in case the firmware version is already retrieved from the fix address
client in bus_fixup().
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20230716081043.3092690-3-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Enable asynchronous suspend for devices on MEI bus,
required for gsc.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20230716081043.3092690-2-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
In order to extend debug information log firmware status details
when waiting for firmware ready status fails.
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20230716081043.3092690-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
A previous commit tried to come up with more generic subpool
names, but this isn't quite working: the node name was used
elsewhere to match pools to consumers which regressed the
nVidia Tegra 2/3 video decoder.
Revert back to an earlier approach using of_node_full_name()
instead of just the name to make sure the pool name is more
unique, and change both sites using this in the kernel.
It is not perfect since two SRAM nodes could have the same
subpool name but it makes the situation better than before.
Reported-by: Dmitry Osipenko <digetx@gmail.com>
Fixes: 21e5a2d10c ("misc: sram: Generate unique names for subpools")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Link: https://lore.kernel.org/r/20230622074520.3058027-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Here is the big set of char/misc and other driver subsystem updates for
6.5-rc1.
Lots of different, tiny, stuff in here, from a range of smaller driver
subsystems, including pulls from some substems directly:
- IIO driver updates and additions
- W1 driver updates and fixes (and a new maintainer!)
- FPGA driver updates and fixes
- Counter driver updates
- Extcon driver updates
- Interconnect driver updates
- Coresight driver updates
- mfd tree tag merge needed for other updates
on top of that, lots of small driver updates as patches, including:
- static const updates for class structures
- nvmem driver updates
- pcmcia driver fix
- lots of other small driver updates and fixes
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull Char/Misc updates from Greg KH:
"Here is the big set of char/misc and other driver subsystem updates
for 6.5-rc1.
Lots of different, tiny, stuff in here, from a range of smaller driver
subsystems, including pulls from some substems directly:
- IIO driver updates and additions
- W1 driver updates and fixes (and a new maintainer!)
- FPGA driver updates and fixes
- Counter driver updates
- Extcon driver updates
- Interconnect driver updates
- Coresight driver updates
- mfd tree tag merge needed for other updates on top of that, lots of
small driver updates as patches, including:
- static const updates for class structures
- nvmem driver updates
- pcmcia driver fix
- lots of other small driver updates and fixes
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (243 commits)
bsr: fix build problem with bsr_class static cleanup
comedi: make all 'class' structures const
char: xillybus: make xillybus_class a static const structure
xilinx_hwicap: make icap_class a static const structure
virtio_console: make port class a static const structure
ppdev: make ppdev_class a static const structure
char: misc: make misc_class a static const structure
/dev/mem: make mem_class a static const structure
char: lp: make lp_class a static const structure
dsp56k: make dsp56k_class a static const structure
bsr: make bsr_class a static const structure
oradax: make 'cl' a static const structure
hwtracing: hisi_ptt: Fix potential sleep in atomic context
hwtracing: hisi_ptt: Advertise PERF_PMU_CAP_NO_EXCLUDE for PTT PMU
hwtracing: hisi_ptt: Export available filters through sysfs
hwtracing: hisi_ptt: Add support for dynamically updating the filter list
hwtracing: hisi_ptt: Factor out filter allocation and release operation
samples: pfsm: add CC_CAN_LINK dependency
misc: fastrpc: check return value of devm_kasprintf()
coresight: dummy: Update type of mode parameter in dummy_{sink,source}_enable()
...
* I2C has now a co-maintainer taking care of the host drivers. Welcome
Andi Shyti and have fun!
* platform remove callback converted to return void in drivers
* simplify drivers by using devm_clk_get_enabled()
* introduce i2c_get_match_data() to avoid more boilerplate code
(especially since the core stopped delivering an i2c_device_id)
* and the usual bunch of driver updates
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Merge tag 'i2c-for-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
- I2C has now a co-maintainer taking care of the host drivers. Welcome
Andi Shyti and have fun!
- platform remove callback converted to return void in drivers
- simplify drivers by using devm_clk_get_enabled()
- introduce i2c_get_match_data() to avoid more boilerplate code
(especially since the core stopped delivering an i2c_device_id)
- and the usual bunch of driver updates
* tag 'i2c-for-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (38 commits)
i2c: uniphier: Use devm_clk_get_enabled()
i2c: uniphier-f: Use devm_clk_get_enabled()
i2c: owl: Use devm_clk_get_enabled()
i2c: lpc2k: Use devm_clk_get_enabled()
i2c: hix5hd2: Use devm_clk_get_enabled()
i2c: sun6i-p2wi: Use devm_clk_get_enabled()
i2c: pasemi-platform: Use devm_clk_get_enabled()
i2c: mt7621: Use devm_clk_get_enabled()
i2c: xiic: Use devm_clk_get_enabled()
i2c: davinci: Use platform table macro over module_alias
i2c: ocores: use devm_ managed clks
i2c: nomadik: Use dev_err_probe() whenever possible
i2c: nomadik: Use devm_clk_get_enabled()
i2c: nomadik: Remove unnecessary goto label
usb: typec: ucsi: Mark dGPUs as DEVICE scope
i2c: wmt: Use devm_platform_get_and_ioremap_resource()
i2c: versatile: Use devm_platform_get_and_ioremap_resource()
i2c: hix5hd2: Add I2C_M_STOP flag support for i2c-hix5hd2 driver.
i2c: mpc: Use of_property_read_reg() to parse "reg"
i2c: imx-lpi2c: Don't open-code DIV_ROUND_UP
...
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Merge tag 'pci-v6.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Export pcie_retrain_link() for use outside ASPM
- Add Data Link Layer Link Active Reporting as another way for
pcie_retrain_link() to determine the link is up
- Work around link training failures (especially on the ASMedia
ASM2824 switch) by training first at 2.5GT/s and then attempting
higher rates
Resource management:
- When we coalesce host bridge windows, remove invalidated resources
from the resource tree so future allocations work correctly
Hotplug:
- Cancel bringup sequence if card is not present, to keep from
blinking Power Indicator indefinitely
- Reassign bridge resources if necessary for ACPI hotplug
Driver binding:
- Convert platform_device .remove() callbacks to return void instead
of a mostly useless int
Power management:
- Reduce wait time for secondary bus to be ready to speed up resume
- Avoid putting EloPOS E2/S2/H2 (as well as Elo i2) PCIe Ports in
D3cold
- Call _REG when transitioning D-states so AML that uses the PCI
config space OpRegion works, which fixes some ASMedia GPIO
controllers after resume
Virtualization:
- Delay extra 250ms after FLR of Solidigm P44 Pro NVMe to avoid KVM
hang when guest is rebooted
- Add function 1 DMA alias quirk for Marvell 88SE9235
Error handling:
- Unexport pci_save_aer_state() since it's only used in drivers/pci/
- Drop recommendation for drivers to configure AER Capability, since
the PCI core does this for all devices
ASPM:
- Disable ASPM on MFD function removal to avoid use-after-free
- Tighten up pci_enable_link_state() and pci_disable_link_state()
interfaces so they don't enable/disable states the driver didn't
specify
- Avoid link retraining race that can happen if ASPM sets link
control parameters while the link is in the midst of training for
some other reason
Endpoint framework:
- Change "PCI Endpoint Virtual NTB driver" Kconfig prompt to be
different from "PCI Endpoint NTB driver"
- Automatically create a function specific attributes group for
endpoint drivers to avoid reference counting issues
- Fix many EPC test issues
- Return pci_epf_type_add_cfs() error if EPF has no driver
- Add kernel-doc for pci_epc_raise_irq() and pci_epc_map_msi_irq()
MSI vector parameters
- Pass EPF device ID to driver probe functions
- Return -EALREADY if EPC has already been started/stopped
- Add linkdown notifier support and use it in qcom-ep
- Add Bus Master Enable event support and use it in qcom-ep
- Add Qualcomm Modem Host Interface (MHI) endpoint driver
- Add Layerscape PME interrupt handling to manage link-up
notification
Cadence PCIe controller driver:
- Wait for link retrain to complete when working around the J721E
i2085 erratum with Gen2 mode
Faraday FTPC100 PCI controller driver:
- Release clock resources on error paths
Freescale i.MX6 PCIe controller driver:
- Save and restore Root Port MSI control to work around hardware defect
Intel VMD host bridge driver:
- Reset VMD config register between soft reboots
- Capture pci_reset_bus() return value instead of printing junk when
it fails
Qualcomm PCIe controller driver:
- Add SDX65 endpoint compatible string to DT binding
- Disable register write access after init for IP v2.3.3, v2.9.0
- Use DWC helpers for enabling/disabling writes to DBI registers
- Hide slot hotplug capability for IP v1.0.0, v1.9.0, v2.1.0, v2.3.2,
v2.3.3, v2.7.0, v2.9.0
- Reuse v2.3.2 post-init sequence for v2.4.0
Renesas R-Car PCIe controller driver:
- Remove unused static pcie_base and pcie_dev
Rockchip PCIe controller driver:
- Remove writes to unused registers
- Write endpoint Device ID using correct register
- Assert PCI Configuration Enable bit after probe so endpoint
responds instead of generating Request Retry Status messages
- Poll waiting for PHY PLLs to lock
- Update RK3399 example DT binding to be valid
- Use RK3399 PCIE_CLIENT_LEGACY_INT_CTRL to generate INTx instead of
manually generating PCIe message
- Use multiple windows to avoid address translation conflicts
- Use u32 (not u16) when accessing 32-bit registers
- Hide MSI-X Capability, since RK3399 can't generate MSI-X
- Set endpoint controller required alignment to 256
Synopsys DesignWare PCIe controller driver:
- Wait for link to come up only if we've initiated link training
Miscellaneous:
- Add pci_clear_master() stub for non-CONFIG_PCI"
* tag 'pci-v6.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (116 commits)
Documentation: PCI: correct spelling
PCI: vmd: Fix uninitialized variable usage in vmd_enable_domain()
PCI: xgene-msi: Convert to platform remove callback returning void
PCI: tegra: Convert to platform remove callback returning void
PCI: rockchip-host: Convert to platform remove callback returning void
PCI: mvebu: Convert to platform remove callback returning void
PCI: mt7621: Convert to platform remove callback returning void
PCI: mediatek-gen3: Convert to platform remove callback returning void
PCI: mediatek: Convert to platform remove callback returning void
PCI: iproc: Convert to platform remove callback returning void
PCI: hisi-error: Convert to platform remove callback returning void
PCI: dwc: Convert to platform remove callback returning void
PCI: j721e: Convert to platform remove callback returning void
PCI: brcmstb: Convert to platform remove callback returning void
PCI: altera-msi: Convert to platform remove callback returning void
PCI: altera: Convert to platform remove callback returning void
PCI: aardvark: Convert to platform remove callback returning void
PCI: rcar: Use correct product family name for Renesas R-Car
PCI: layerscape: Add the endpoint linkup notifier support
PCI: endpoint: pci-epf-vntb: Fix typo in comments
...
Nothing surprising in the SoC specific drivers, with the usual updates:
* Added or improved SoC driver support for Tegra234, Exynos4121, RK3588,
as well as multiple Mediatek and Qualcomm chips
* SCMI firmware gains support for multiple SMC/HVC transport and version
3.2 of the protocol
* Cleanups amd minor changes for the reset controller, memory controller,
firmware and sram drivers
* Minor changes to amd/xilinx, samsung, tegra, nxp, ti, qualcomm,
amlogic and renesas SoC specific drivers
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Merge tag 'soc-drivers-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann:
"Nothing surprising in the SoC specific drivers, with the usual
updates:
- Added or improved SoC driver support for Tegra234, Exynos4121,
RK3588, as well as multiple Mediatek and Qualcomm chips
- SCMI firmware gains support for multiple SMC/HVC transport and
version 3.2 of the protocol
- Cleanups amd minor changes for the reset controller, memory
controller, firmware and sram drivers
- Minor changes to amd/xilinx, samsung, tegra, nxp, ti, qualcomm,
amlogic and renesas SoC specific drivers"
* tag 'soc-drivers-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (118 commits)
dt-bindings: interrupt-controller: Convert Amlogic Meson GPIO interrupt controller binding
MAINTAINERS: add PHY-related files to Amlogic SoC file list
drivers: meson: secure-pwrc: always enable DMA domain
tee: optee: Use kmemdup() to replace kmalloc + memcpy
soc: qcom: geni-se: Do not bother about enable/disable of interrupts in secondary sequencer
dt-bindings: sram: qcom,imem: document qdu1000
soc: qcom: icc-bwmon: Fix MSM8998 count unit
dt-bindings: soc: qcom,rpmh-rsc: Require power-domains
soc: qcom: socinfo: Add Soc ID for IPQ5300
dt-bindings: arm: qcom,ids: add SoC ID for IPQ5300
soc: qcom: Fix a IS_ERR() vs NULL bug in probe
soc: qcom: socinfo: Add support for new fields in revision 19
soc: qcom: socinfo: Add support for new fields in revision 18
dt-bindings: firmware: scm: Add compatible for SDX75
soc: qcom: mdt_loader: Fix split image detection
dt-bindings: memory-controllers: drop unneeded quotes
soc: rockchip: dtpm: use C99 array init syntax
firmware: tegra: bpmp: Add support for DRAM MRQ GSCs
soc/tegra: pmc: Use devm_clk_notifier_register()
soc/tegra: pmc: Simplify debugfs initialization
...
core:
- replace strlcpy with strscpy
- EDID changes to support further conversion to struct drm_edid
- Move i915 DSC parameter code to common DRM helpers
- Add Colorspace functionality
aperture:
- ignore framebuffers with non-primary devices
fbdev:
- use fbdev i/o helpers
- add Kconfig options for fb_ops helpers
- use new fb io helpers directly in drivers
sysfs:
- export DRM connector ID
scheduler:
- Avoid an infinite loop
ttm:
- store function table in .rodata
- Add query for TTM mem limit
- Add NUMA awareness to pools
- Export ttm_pool_fini()
bridge:
- fsl-ldb: support i.MX6SX
- lt9211, lt9611: remove blanking packets
- tc358768: implement input bus formats, devm cleanups
- ti-snd65dsi86: implement wait_hpd_asserted
- analogix: fix endless probe loop
- samsung-dsim: support swapped clock, fix enabling, support var clock
- display-connector: Add support for external power supply
- imx: Fix module linking
- tc358762: Support reset GPIO
panel:
- nt36523: Support Lenovo J606F
- st7703: Support Anbernic RG353V-V2
- InnoLux G070ACE-L01 support
- boe-tv101wum-nl6: Improve initialization
- sharp-ls043t1le001: Mode fixes
- simple: BOE EV121WXM-N10-1850, S6D7AA0
- Ampire AM-800480L1TMQW-T00H
- Rocktech RK043FN48H
- Starry himax83102-j02
- Starry ili9882t
amdgpu:
- add new ctx query flag to handle reset better
- add new query/set shadow buffer for rdna3
- DCN 3.2/3.1.x/3.0.x updates
- Enable DC_FP on loongarch
- PCIe fix for RDNA2
- improve DC FAMS/SubVP support for better power management
- partition support for lots of engines
- Take NUMA into account when allocating memory
- Add new DRM_AMDGPU_WERROR config parameter to help with CI
- Initial SMU13 overdrive support
- Add support for new colorspace KMS API
- W=1 fixes
amdkfd:
- Query TTM mem limit rather than hardcoding it
- GC 9.4.3 partition support
- Handle NUMA for partitions
- Add debugger interface for enabling gdb
- Add KFD event age tracking
radeon:
- Fix possible UAF
i915:
- new getparam for PXP support
- GSC/MEI proxy driver
- Meteorlake display enablement
- avoid clearing preallocated framebuffers with TTM
- implement framebuffer mmap support
- Disable sampler indirect state in bindless heap
- Enable fdinfo for GuC backends
- GuC loading and firmware table handling fixes
- Various refactors for multi-tile enablement
- Define MOCS and PAT tables for MTL
- GSC/MEI support for Meteorlake
- PMU multi-tile support
- Large driver kernel doc cleanup
- Allow VRR toggling and arbitrary refresh rates
- Support async flips on linear buffers on display ver 12+
- Expose CRTC CTM property on ILK/SNB/VLV
- New debugfs for display clock frequencies
- Hotplug refactoring
- Display refactoring
- I915_GEM_CREATE_EXT_SET_PAT for Mesa on Meteorlake
- Use large rings for compute contexts
- HuC loading for MTL
- Allow user to set cache at BO creation
- MTL powermanagement enhancements
- Switch to dedicated workqueues to stop using flush_scheduled_work()
- Move display runtime init under display/
- Remove 10bit gamma on desktop gen3 parts, they don't support it
habanalabs:
- uapi: return 0 for user queries if there was a h/w or f/w error
- Add pci health check when we lose connection with the firmware. This can be used to
distinguish between pci link down and firmware getting stuck.
- Add more info to the error print when TPC interrupt occur.
- Firmware fixes
msm:
- Adreno A660 bindings
- SM8350 MDSS bindings fix
- Added support for DPU on sm6350 and sm6375 platforms
- Implemented tearcheck support to support vsync on SM150 and newer platforms
- Enabled missing features (DSPP, DSC, split display) on sc8180x, sc8280xp, sm8450
- Added support for DSI and 28nm DSI PHY on MSM8226 platform
- Added support for DSI on sm6350 and sm6375 platforms
- Added support for display controller on MSM8226 platform
- A690 GPU support
- Move cmdstream dumping out of fence signaling path
- a610 support
- Support for a6xx devices without GMU
nouveau:
- NULL ptr before deref fixes
armada:
- implement fbdev emulation as client
sun4i:
- fix mipi-dsi dotclock
- release clocks
vc4:
- rgb range toggle property
- BT601 / BT2020 HDMI support
vkms:
- convert to drmm helpers
- add reflection and rotation support
- fix rgb565 conversion
gma500:
- fix iomem access
shmobile:
- support renesas soc platform
- enable fbdev
mxsfb:
- Add support for i.MX93 LCDIF
stm:
- dsi: Use devm_ helper
- ltdc: Fix potential invalid pointer deref
renesas:
- Group drivers in renesas subdirectory to prepare for new platform
- Drop deprecated R-Car H3 ES1.x support
meson:
- Add support for MIPI DSI displays
virtio:
- add sync object support
mediatek:
- Add display binding document for MT6795
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Merge tag 'drm-next-2023-06-29' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"There is one set of patches to misc for a i915 gsc/mei proxy driver.
Otherwise it's mostly amdgpu/i915/msm, lots of hw enablement and lots
of refactoring.
core:
- replace strlcpy with strscpy
- EDID changes to support further conversion to struct drm_edid
- Move i915 DSC parameter code to common DRM helpers
- Add Colorspace functionality
aperture:
- ignore framebuffers with non-primary devices
fbdev:
- use fbdev i/o helpers
- add Kconfig options for fb_ops helpers
- use new fb io helpers directly in drivers
sysfs:
- export DRM connector ID
scheduler:
- Avoid an infinite loop
ttm:
- store function table in .rodata
- Add query for TTM mem limit
- Add NUMA awareness to pools
- Export ttm_pool_fini()
bridge:
- fsl-ldb: support i.MX6SX
- lt9211, lt9611: remove blanking packets
- tc358768: implement input bus formats, devm cleanups
- ti-snd65dsi86: implement wait_hpd_asserted
- analogix: fix endless probe loop
- samsung-dsim: support swapped clock, fix enabling, support var
clock
- display-connector: Add support for external power supply
- imx: Fix module linking
- tc358762: Support reset GPIO
panel:
- nt36523: Support Lenovo J606F
- st7703: Support Anbernic RG353V-V2
- InnoLux G070ACE-L01 support
- boe-tv101wum-nl6: Improve initialization
- sharp-ls043t1le001: Mode fixes
- simple: BOE EV121WXM-N10-1850, S6D7AA0
- Ampire AM-800480L1TMQW-T00H
- Rocktech RK043FN48H
- Starry himax83102-j02
- Starry ili9882t
amdgpu:
- add new ctx query flag to handle reset better
- add new query/set shadow buffer for rdna3
- DCN 3.2/3.1.x/3.0.x updates
- Enable DC_FP on loongarch
- PCIe fix for RDNA2
- improve DC FAMS/SubVP support for better power management
- partition support for lots of engines
- Take NUMA into account when allocating memory
- Add new DRM_AMDGPU_WERROR config parameter to help with CI
- Initial SMU13 overdrive support
- Add support for new colorspace KMS API
- W=1 fixes
amdkfd:
- Query TTM mem limit rather than hardcoding it
- GC 9.4.3 partition support
- Handle NUMA for partitions
- Add debugger interface for enabling gdb
- Add KFD event age tracking
radeon:
- Fix possible UAF
i915:
- new getparam for PXP support
- GSC/MEI proxy driver
- Meteorlake display enablement
- avoid clearing preallocated framebuffers with TTM
- implement framebuffer mmap support
- Disable sampler indirect state in bindless heap
- Enable fdinfo for GuC backends
- GuC loading and firmware table handling fixes
- Various refactors for multi-tile enablement
- Define MOCS and PAT tables for MTL
- GSC/MEI support for Meteorlake
- PMU multi-tile support
- Large driver kernel doc cleanup
- Allow VRR toggling and arbitrary refresh rates
- Support async flips on linear buffers on display ver 12+
- Expose CRTC CTM property on ILK/SNB/VLV
- New debugfs for display clock frequencies
- Hotplug refactoring
- Display refactoring
- I915_GEM_CREATE_EXT_SET_PAT for Mesa on Meteorlake
- Use large rings for compute contexts
- HuC loading for MTL
- Allow user to set cache at BO creation
- MTL powermanagement enhancements
- Switch to dedicated workqueues to stop using flush_scheduled_work()
- Move display runtime init under display/
- Remove 10bit gamma on desktop gen3 parts, they don't support it
habanalabs:
- uapi: return 0 for user queries if there was a h/w or f/w error
- Add pci health check when we lose connection with the firmware.
This can be used to distinguish between pci link down and firmware
getting stuck.
- Add more info to the error print when TPC interrupt occur.
- Firmware fixes
msm:
- Adreno A660 bindings
- SM8350 MDSS bindings fix
- Added support for DPU on sm6350 and sm6375 platforms
- Implemented tearcheck support to support vsync on SM150 and newer
platforms
- Enabled missing features (DSPP, DSC, split display) on sc8180x,
sc8280xp, sm8450
- Added support for DSI and 28nm DSI PHY on MSM8226 platform
- Added support for DSI on sm6350 and sm6375 platforms
- Added support for display controller on MSM8226 platform
- A690 GPU support
- Move cmdstream dumping out of fence signaling path
- a610 support
- Support for a6xx devices without GMU
nouveau:
- NULL ptr before deref fixes
armada:
- implement fbdev emulation as client
sun4i:
- fix mipi-dsi dotclock
- release clocks
vc4:
- rgb range toggle property
- BT601 / BT2020 HDMI support
vkms:
- convert to drmm helpers
- add reflection and rotation support
- fix rgb565 conversion
gma500:
- fix iomem access
shmobile:
- support renesas soc platform
- enable fbdev
mxsfb:
- Add support for i.MX93 LCDIF
stm:
- dsi: Use devm_ helper
- ltdc: Fix potential invalid pointer deref
renesas:
- Group drivers in renesas subdirectory to prepare for new platform
- Drop deprecated R-Car H3 ES1.x support
meson:
- Add support for MIPI DSI displays
virtio:
- add sync object support
mediatek:
- Add display binding document for MT6795"
* tag 'drm-next-2023-06-29' of git://anongit.freedesktop.org/drm/drm: (1791 commits)
drm/i915: Fix a NULL vs IS_ERR() bug
drm/i915: make i915_drm_client_fdinfo() reference conditional again
drm/i915/huc: Fix missing error code in intel_huc_init()
drm/i915/gsc: take a wakeref for the proxy-init-completion check
drm/msm/a6xx: Add A610 speedbin support
drm/msm/a6xx: Add A619_holi speedbin support
drm/msm/a6xx: Use adreno_is_aXYZ macros in speedbin matching
drm/msm/a6xx: Use "else if" in GPU speedbin rev matching
drm/msm/a6xx: Fix some A619 tunables
drm/msm/a6xx: Add A610 support
drm/msm/a6xx: Add support for A619_holi
drm/msm/adreno: Disable has_cached_coherent in GMU wrapper configurations
drm/msm/a6xx: Introduce GMU wrapper support
drm/msm/a6xx: Move CX GMU power counter enablement to hw_init
drm/msm/a6xx: Extend and explain UBWC config
drm/msm/a6xx: Remove both GBIF and RBBM GBIF halt on hw init
drm/msm/a6xx: Add a helper for software-resetting the GPU
drm/msm/a6xx: Improve a6xx_bus_clear_pending_transactions()
drm/msm/a6xx: Move a6xx_bus_clear_pending_transactions to a6xx_gpu
drm/msm/a6xx: Move force keepalive vote removal to a6xx_gmu_force_off()
...
- Yosry has also eliminated cgroup's atomic rstat flushing.
- Nhat Pham adds the new cachestat() syscall. It provides userspace
with the ability to query pagecache status - a similar concept to
mincore() but more powerful and with improved usability.
- Mel Gorman provides more optimizations for compaction, reducing the
prevalence of page rescanning.
- Lorenzo Stoakes has done some maintanance work on the get_user_pages()
interface.
- Liam Howlett continues with cleanups and maintenance work to the maple
tree code. Peng Zhang also does some work on maple tree.
- Johannes Weiner has done some cleanup work on the compaction code.
- David Hildenbrand has contributed additional selftests for
get_user_pages().
- Thomas Gleixner has contributed some maintenance and optimization work
for the vmalloc code.
- Baolin Wang has provided some compaction cleanups,
- SeongJae Park continues maintenance work on the DAMON code.
- Huang Ying has done some maintenance on the swap code's usage of
device refcounting.
- Christoph Hellwig has some cleanups for the filemap/directio code.
- Ryan Roberts provides two patch series which yield some
rationalization of the kernel's access to pte entries - use the provided
APIs rather than open-coding accesses.
- Lorenzo Stoakes has some fixes to the interaction between pagecache
and directio access to file mappings.
- John Hubbard has a series of fixes to the MM selftesting code.
- ZhangPeng continues the folio conversion campaign.
- Hugh Dickins has been working on the pagetable handling code, mainly
with a view to reducing the load on the mmap_lock.
- Catalin Marinas has reduced the arm64 kmalloc() minimum alignment from
128 to 8.
- Domenico Cerasuolo has improved the zswap reclaim mechanism by
reorganizing the LRU management.
- Matthew Wilcox provides some fixups to make gfs2 work better with the
buffer_head code.
- Vishal Moola also has done some folio conversion work.
- Matthew Wilcox has removed the remnants of the pagevec code - their
functionality is migrated over to struct folio_batch.
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Merge tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull mm updates from Andrew Morton:
- Yosry Ahmed brought back some cgroup v1 stats in OOM logs
- Yosry has also eliminated cgroup's atomic rstat flushing
- Nhat Pham adds the new cachestat() syscall. It provides userspace
with the ability to query pagecache status - a similar concept to
mincore() but more powerful and with improved usability
- Mel Gorman provides more optimizations for compaction, reducing the
prevalence of page rescanning
- Lorenzo Stoakes has done some maintanance work on the
get_user_pages() interface
- Liam Howlett continues with cleanups and maintenance work to the
maple tree code. Peng Zhang also does some work on maple tree
- Johannes Weiner has done some cleanup work on the compaction code
- David Hildenbrand has contributed additional selftests for
get_user_pages()
- Thomas Gleixner has contributed some maintenance and optimization
work for the vmalloc code
- Baolin Wang has provided some compaction cleanups,
- SeongJae Park continues maintenance work on the DAMON code
- Huang Ying has done some maintenance on the swap code's usage of
device refcounting
- Christoph Hellwig has some cleanups for the filemap/directio code
- Ryan Roberts provides two patch series which yield some
rationalization of the kernel's access to pte entries - use the
provided APIs rather than open-coding accesses
- Lorenzo Stoakes has some fixes to the interaction between pagecache
and directio access to file mappings
- John Hubbard has a series of fixes to the MM selftesting code
- ZhangPeng continues the folio conversion campaign
- Hugh Dickins has been working on the pagetable handling code, mainly
with a view to reducing the load on the mmap_lock
- Catalin Marinas has reduced the arm64 kmalloc() minimum alignment
from 128 to 8
- Domenico Cerasuolo has improved the zswap reclaim mechanism by
reorganizing the LRU management
- Matthew Wilcox provides some fixups to make gfs2 work better with the
buffer_head code
- Vishal Moola also has done some folio conversion work
- Matthew Wilcox has removed the remnants of the pagevec code - their
functionality is migrated over to struct folio_batch
* tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (380 commits)
mm/hugetlb: remove hugetlb_set_page_subpool()
mm: nommu: correct the range of mmap_sem_read_lock in task_mem()
hugetlb: revert use of page_cache_next_miss()
Revert "page cache: fix page_cache_next/prev_miss off by one"
mm/vmscan: fix root proactive reclaim unthrottling unbalanced node
mm: memcg: rename and document global_reclaim()
mm: kill [add|del]_page_to_lru_list()
mm: compaction: convert to use a folio in isolate_migratepages_block()
mm: zswap: fix double invalidate with exclusive loads
mm: remove unnecessary pagevec includes
mm: remove references to pagevec
mm: rename invalidate_mapping_pagevec to mapping_try_invalidate
mm: remove struct pagevec
net: convert sunrpc from pagevec to folio_batch
i915: convert i915_gpu_error to use a folio_batch
pagevec: rename fbatch_count()
mm: remove check_move_unevictable_pages()
drm: convert drm_gem_put_pages() to use a folio_batch
i915: convert shmem_sg_free_table() to use a folio_batch
scatterlist: add sg_set_folio()
...
- Fix KMSAN vs FORTIFY in strlcpy/strlcat (Alexander Potapenko)
- Convert strreplace() to return string start (Andy Shevchenko)
- Flexible array conversions (Arnd Bergmann, Wyes Karny, Kees Cook)
- Add missing function prototypes seen with W=1 (Arnd Bergmann)
- Fix strscpy() kerndoc typo (Arne Welzel)
- Replace strlcpy() with strscpy() across many subsystems which were
either Acked by respective maintainers or were trivial changes that
went ignored for multiple weeks (Azeem Shaikh)
- Remove unneeded cc-option test for UBSAN_TRAP (Nick Desaulniers)
- Add KUnit tests for strcat()-family
- Enable KUnit tests of FORTIFY wrappers under UML
- Add more complete FORTIFY protections for strlcat()
- Add missed disabling of FORTIFY for all arch purgatories.
- Enable -fstrict-flex-arrays=3 globally
- Tightening UBSAN_BOUNDS when using GCC
- Improve checkpatch to check for strcpy, strncpy, and fake flex arrays
- Improve use of const variables in FORTIFY
- Add requested struct_size_t() helper for types not pointers
- Add __counted_by macro for annotating flexible array size members
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Merge tag 'hardening-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening updates from Kees Cook:
"There are three areas of note:
A bunch of strlcpy()->strscpy() conversions ended up living in my tree
since they were either Acked by maintainers for me to carry, or got
ignored for multiple weeks (and were trivial changes).
The compiler option '-fstrict-flex-arrays=3' has been enabled
globally, and has been in -next for the entire devel cycle. This
changes compiler diagnostics (though mainly just -Warray-bounds which
is disabled) and potential UBSAN_BOUNDS and FORTIFY _warning_
coverage. In other words, there are no new restrictions, just
potentially new warnings. Any new FORTIFY warnings we've seen have
been fixed (usually in their respective subsystem trees). For more
details, see commit df8fc4e934.
The under-development compiler attribute __counted_by has been added
so that we can start annotating flexible array members with their
associated structure member that tracks the count of flexible array
elements at run-time. It is possible (likely?) that the exact syntax
of the attribute will change before it is finalized, but GCC and Clang
are working together to sort it out. Any changes can be made to the
macro while we continue to add annotations.
As an example of that last case, I have a treewide commit waiting with
such annotations found via Coccinelle:
https://git.kernel.org/linus/adc5b3cb48a049563dc673f348eab7b6beba8a9b
Also see commit dd06e72e68 for more details.
Summary:
- Fix KMSAN vs FORTIFY in strlcpy/strlcat (Alexander Potapenko)
- Convert strreplace() to return string start (Andy Shevchenko)
- Flexible array conversions (Arnd Bergmann, Wyes Karny, Kees Cook)
- Add missing function prototypes seen with W=1 (Arnd Bergmann)
- Fix strscpy() kerndoc typo (Arne Welzel)
- Replace strlcpy() with strscpy() across many subsystems which were
either Acked by respective maintainers or were trivial changes that
went ignored for multiple weeks (Azeem Shaikh)
- Remove unneeded cc-option test for UBSAN_TRAP (Nick Desaulniers)
- Add KUnit tests for strcat()-family
- Enable KUnit tests of FORTIFY wrappers under UML
- Add more complete FORTIFY protections for strlcat()
- Add missed disabling of FORTIFY for all arch purgatories.
- Enable -fstrict-flex-arrays=3 globally
- Tightening UBSAN_BOUNDS when using GCC
- Improve checkpatch to check for strcpy, strncpy, and fake flex
arrays
- Improve use of const variables in FORTIFY
- Add requested struct_size_t() helper for types not pointers
- Add __counted_by macro for annotating flexible array size members"
* tag 'hardening-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (54 commits)
netfilter: ipset: Replace strlcpy with strscpy
uml: Replace strlcpy with strscpy
um: Use HOST_DIR for mrproper
kallsyms: Replace all non-returning strlcpy with strscpy
sh: Replace all non-returning strlcpy with strscpy
of/flattree: Replace all non-returning strlcpy with strscpy
sparc64: Replace all non-returning strlcpy with strscpy
Hexagon: Replace all non-returning strlcpy with strscpy
kobject: Use return value of strreplace()
lib/string_helpers: Change returned value of the strreplace()
jbd2: Avoid printing outside the boundary of the buffer
checkpatch: Check for 0-length and 1-element arrays
riscv/purgatory: Do not use fortified string functions
s390/purgatory: Do not use fortified string functions
x86/purgatory: Do not use fortified string functions
acpi: Replace struct acpi_table_slit 1-element array with flex-array
clocksource: Replace all non-returning strlcpy with strscpy
string: use __builtin_memcpy() in strlcpy/strlcat
staging: most: Replace all non-returning strlcpy with strscpy
drm/i2c: tda998x: Replace all non-returning strlcpy with strscpy
...
- Build footprint & performance improvements:
- Reduce memory usage with CONFIG_DEBUG_INFO=y
In the worst case of an allyesconfig+CONFIG_DEBUG_INFO=y kernel, DWARF
creates almost 200 million relocations, ballooning objtool's peak heap
usage to 53GB. These patches reduce that to 25GB.
On a distro-type kernel with kernel IBT enabled, they reduce objtool's
peak heap usage from 4.2GB to 2.8GB.
These changes also improve the runtime significantly.
- Debuggability improvements:
- Add the unwind_debug command-line option, for more extend unwinding
debugging output.
- Limit unreachable warnings to once per function
- Add verbose option for disassembling affected functions
- Include backtrace in verbose mode
- Detect missing __noreturn annotations
- Ignore exc_double_fault() __noreturn warnings
- Remove superfluous global_noreturns entries
- Move noreturn function list to separate file
- Add __kunit_abort() to noreturns
- Unwinder improvements:
- Allow stack operations in UNWIND_HINT_UNDEFINED regions
- drm/vmwgfx: Add unwind hints around RBP clobber
- Cleanups:
- Move the x86 entry thunk restore code into thunk functions
- x86/unwind/orc: Use swap() instead of open coding it
- Remove unnecessary/unused variables
- Fixes for modern stack canary handling
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molar:
"Build footprint & performance improvements:
- Reduce memory usage with CONFIG_DEBUG_INFO=y
In the worst case of an allyesconfig+CONFIG_DEBUG_INFO=y kernel,
DWARF creates almost 200 million relocations, ballooning objtool's
peak heap usage to 53GB. These patches reduce that to 25GB.
On a distro-type kernel with kernel IBT enabled, they reduce
objtool's peak heap usage from 4.2GB to 2.8GB.
These changes also improve the runtime significantly.
Debuggability improvements:
- Add the unwind_debug command-line option, for more extend unwinding
debugging output
- Limit unreachable warnings to once per function
- Add verbose option for disassembling affected functions
- Include backtrace in verbose mode
- Detect missing __noreturn annotations
- Ignore exc_double_fault() __noreturn warnings
- Remove superfluous global_noreturns entries
- Move noreturn function list to separate file
- Add __kunit_abort() to noreturns
Unwinder improvements:
- Allow stack operations in UNWIND_HINT_UNDEFINED regions
- drm/vmwgfx: Add unwind hints around RBP clobber
Cleanups:
- Move the x86 entry thunk restore code into thunk functions
- x86/unwind/orc: Use swap() instead of open coding it
- Remove unnecessary/unused variables
Fixes for modern stack canary handling"
* tag 'objtool-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
x86/orc: Make the is_callthunk() definition depend on CONFIG_BPF_JIT=y
objtool: Skip reading DWARF section data
objtool: Free insns when done
objtool: Get rid of reloc->rel[a]
objtool: Shrink elf hash nodes
objtool: Shrink reloc->sym_reloc_entry
objtool: Get rid of reloc->jump_table_start
objtool: Get rid of reloc->addend
objtool: Get rid of reloc->type
objtool: Get rid of reloc->offset
objtool: Get rid of reloc->idx
objtool: Get rid of reloc->list
objtool: Allocate relocs in advance for new rela sections
objtool: Add for_each_reloc()
objtool: Don't free memory in elf_close()
objtool: Keep GElf_Rel[a] structs synced
objtool: Add elf_create_section_pair()
objtool: Add mark_sec_changed()
objtool: Fix reloc_hash size
objtool: Consolidate rel/rela handling
...
Simplify the code of pci_endpoint_test_msi_irq() by correctly using
booleans: remove the msix comparison to false as that variable is already a
boolean, and directly return the result of the comparison of the raised
interrupt number.
Link: https://lore.kernel.org/r/20230415023542.77601-18-dlemoal@kernel.org
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
pci_endpoint_test_irqhandler() always rewrites the status register when an
IRQ is raised, either as-is if STATUS_IRQ_RAISED is not set, or with
STATUS_IRQ_RAISED cleared if that flag is set. The first case creates a
race window with the endpoint side, meaning that the host side test driver
may end up reading what it just wrote, thus losing the real status as set
by the endpoint side before raising the next interrupt. This can prevent
detecting that the STATUS_IRQ_RAISED flag was set by the endpoint.
Remove this race window by not clearing the STATUS_IRQ_RAISED status flag
and not rewriting that register for every IRQ received.
Link: https://lore.kernel.org/r/20230415023542.77601-17-dlemoal@kernel.org
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
The irq_raised completion used to detect the end of a test case is
initialized when the test device is probed, but never reinitialized again
before a test case. As a result, the irq_raised completion synchronization
is effective only for the first ioctl test case executed. Any subsequent
call to wait_for_completion() by another ioctl() call will immediately
return, potentially too early, leading to false positive failures.
Fix this by reinitializing the irq_raised completion before starting a new
ioctl() test command.
Link: https://lore.kernel.org/r/20230415023542.77601-16-dlemoal@kernel.org
Fixes: 2c156ac71c ("misc: Add host side PCI driver for PCI test function device")
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Cc: stable@vger.kernel.org
In pci_endpoint_test_remove(), freeing the IRQs after removing the device
creates a small race window for IRQs to be received with the test device
memory already released, causing the IRQ handler to access invalid memory,
resulting in an oops.
Free the device IRQs before removing the device to avoid this issue.
Link: https://lore.kernel.org/r/20230415023542.77601-15-dlemoal@kernel.org
Fixes: e03327122e ("pci_endpoint_test: Add 2 ioctl commands")
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Cc: stable@vger.kernel.org
Convert all instances of direct pte_t* dereferencing to instead use
ptep_get() helper. This means that by default, the accesses change from a
C dereference to a READ_ONCE(). This is technically the correct thing to
do since where pgtables are modified by HW (for access/dirty) they are
volatile and therefore we should always ensure READ_ONCE() semantics.
But more importantly, by always using the helper, it can be overridden by
the architecture to fully encapsulate the contents of the pte. Arch code
is deliberately not converted, as the arch code knows best. It is
intended that arch code (arm64) will override the default with its own
implementation that can (e.g.) hide certain bits from the core code, or
determine young/dirty status by mixing in state from another source.
Conversion was done using Coccinelle:
----
// $ make coccicheck \
// COCCI=ptepget.cocci \
// SPFLAGS="--include-headers" \
// MODE=patch
virtual patch
@ depends on patch @
pte_t *v;
@@
- *v
+ ptep_get(v)
----
Then reviewed and hand-edited to avoid multiple unnecessary calls to
ptep_get(), instead opting to store the result of a single call in a
variable, where it is correct to do so. This aims to negate any cost of
READ_ONCE() and will benefit arch-overrides that may be more complex.
Included is a fix for an issue in an earlier version of this patch that
was pointed out by kernel test robot. The issue arose because config
MMU=n elides definition of the ptep helper functions, including
ptep_get(). HUGETLB_PAGE=n configs still define a simple
huge_ptep_clear_flush() for linking purposes, which dereferences the ptep.
So when both configs are disabled, this caused a build error because
ptep_get() is not defined. Fix by continuing to do a direct dereference
when MMU=n. This is safe because for this config the arch code cannot be
trying to virtualize the ptes because none of the ptep helpers are
defined.
Link: https://lkml.kernel.org/r/20230612151545.3317766-4-ryan.roberts@arm.com
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202305120142.yXsNEo6H-lkp@intel.com/
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Airlie <airlied@gmail.com>
Cc: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Jérôme Glisse <jglisse@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Mike Rapoport (IBM) <rppt@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: SeongJae Park <sj@kernel.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: Yu Zhao <yuzhao@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Backmerge tag 'v6.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next
Linux 6.4-rc7
Need this to pull in the msm work.
Signed-off-by: Dave Airlie <airlied@redhat.com>
A process can spawn a PD on DSP with some attributes that can be
associated with the PD during spawn and run. The invocation
corresponding to the create request with attributes has total
4 buffers at the DSP side implementation. If this number is not
correct, the invocation is expected to fail on DSP. Added change
to use correct number of buffer count for creating fastrpc scalar.
Fixes: d73f71c7c6 ("misc: fastrpc: Add support for create remote init process")
Cc: stable <stable@kernel.org>
Tested-by: Ekansh Gupta <quic_ekangupt@quicinc.com>
Signed-off-by: Ekansh Gupta <quic_ekangupt@quicinc.com>
Message-ID: <1686743685-21715-1-git-send-email-quic_ekangupt@quicinc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This PFSM controls the operational modes of the PMIC:
- STANDBY and LP_STANDBY,
- ACTIVE state,
- MCU_ONLY state,
- RETENTION state, with or without DDR and/or GPIO retention.
Depending on the current operational mode, some voltage domains
remain energized while others can be off.
This PFSM is also used to trigger a firmware update, and provides
R/W access to device registers.
See Documentation/misc-devices/tps6594-pfsm.rst for more
information.
Signed-off-by: Julien Panis <jpanis@baylibre.com>
Message-ID: <20230511095126.105104-5-jpanis@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch adds support for TPS6594 ESM (Error Signal Monitor).
This device monitors the SoC error output signal at its nERR_SOC input pin.
In error condition, ESM toggles its nRSTOUT_SOC pin to reset the SoC.
Signed-off-by: Julien Panis <jpanis@baylibre.com>
Message-ID: <20230511095126.105104-4-jpanis@baylibre.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Patch series "remove the vmas parameter from GUP APIs", v6.
(pin_/get)_user_pages[_remote]() each provide an optional output parameter
for an array of VMA objects associated with each page in the input range.
These provide the means for VMAs to be returned, as long as mm->mmap_lock
is never released during the GUP operation (i.e. the internal flag
FOLL_UNLOCKABLE is not specified).
In addition, these VMAs can only be accessed with the mmap_lock held and
become invalidated the moment it is released.
The vast majority of invocations do not use this functionality and of
those that do, all but one case retrieve a single VMA to perform checks
upon.
It is not egregious in the single VMA cases to simply replace the
operation with a vma_lookup(). In these cases we duplicate the (fast)
lookup on a slow path already under the mmap_lock, abstracted to a new
get_user_page_vma_remote() inline helper function which also performs
error checking and reference count maintenance.
The special case is io_uring, where io_pin_pages() specifically needs to
assert that the VMAs underlying the range do not result in broken
long-term GUP file-backed mappings.
As GUP now internally asserts that FOLL_LONGTERM mappings are not
file-backed in a broken fashion (i.e. requiring dirty tracking) - as
implemented in "mm/gup: disallow FOLL_LONGTERM GUP-nonfast writing to
file-backed mappings" - this logic is no longer required and so we can
simply remove it altogether from io_uring.
Eliminating the vmas parameter eliminates an entire class of danging
pointer errors that might have occured should the lock have been
incorrectly released.
In addition, the API is simplified and now clearly expresses what it is
intended for - applying the specified GUP flags and (if pinning) returning
pinned pages.
This change additionally opens the door to further potential improvements
in GUP and the possible marrying of disparate code paths.
I have run this series against gup_test with no issues.
Thanks to Matthew Wilcox for suggesting this refactoring!
This patch (of 6):
No invocation of get_user_pages() use the vmas parameter, so remove it.
The GUP API is confusing and caveated. Recent changes have done much to
improve that, however there is more we can do. Exporting vmas is a prime
target as the caller has to be extremely careful to preclude their use
after the mmap_lock has expired or otherwise be left with dangling
pointers.
Removing the vmas parameter focuses the GUP functions upon their primary
purpose - pinning (and outputting) pages as well as performing the actions
implied by the input flags.
This is part of a patch series aiming to remove the vmas parameter
altogether.
Link: https://lkml.kernel.org/r/cover.1684350871.git.lstoakes@gmail.com
Link: https://lkml.kernel.org/r/589e0c64794668ffc799651e8d85e703262b1e9d.1684350871.git.lstoakes@gmail.com
Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com>
Suggested-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Christian König <christian.koenig@amd.com> (for radeon parts)
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Sean Christopherson <seanjc@google.com> (KVM)
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Selecting only REGMAP_I2C can leave REGMAP unset, causing build errors,
so also select REGMAP to prevent the build errors.
../drivers/misc/eeprom/at24.c:540:42: warning: 'struct regmap_config' declared inside parameter list will not be visible outside of this definition or declaration
540 | struct regmap_config *regmap_config)
../drivers/misc/eeprom/at24.c: In function 'at24_make_dummy_client':
../drivers/misc/eeprom/at24.c:552:18: error: implicit declaration of function 'devm_regmap_init_i2c' [-Werror=implicit-function-declaration]
552 | regmap = devm_regmap_init_i2c(dummy_client, regmap_config);
../drivers/misc/eeprom/at24.c:552:16: warning: assignment to 'struct regmap *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
552 | regmap = devm_regmap_init_i2c(dummy_client, regmap_config);
../drivers/misc/eeprom/at24.c: In function 'at24_probe':
../drivers/misc/eeprom/at24.c:586:16: error: variable 'regmap_config' has initializer but incomplete type
586 | struct regmap_config regmap_config = { };
../drivers/misc/eeprom/at24.c:586:30: error: storage size of 'regmap_config' isn't known
586 | struct regmap_config regmap_config = { };
../drivers/misc/eeprom/at24.c:586:30: warning: unused variable 'regmap_config' [-Wunused-variable]
Fixes: 5c01525847 ("eeprom: at24: add basic regmap_i2c support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
