ARRAY_BIST requires the test to be invoked only from one of the HT
siblings of a core. If the other sibling was in mwait(), that didn't
permit the test to complete and resulted in several retries before the
test could finish.
The exit rendezvous was introduced to keep the HT sibling busy until
the primary CPU completed the test to avoid those retries. What is
actually needed is to ensure that both the threads rendezvous *before*
the wrmsr to trigger the test to give good chance to complete the test.
The `stop_machine()` function returns only after all the CPUs complete
running the function, and provides an exit rendezvous implicitly.
In kernel/stop_machine.c::multi_cpu_stop(), every CPU in the mask
needs to complete reaching MULTI_STOP_RUN. When all CPUs complete, the
state machine moves to next state, i.e MULTI_STOP_EXIT. Thus the
underlying API stop_core_cpuslocked() already provides an exit
rendezvous.
Add the rendezvous earlier in order to ensure the wrmsr is triggered
after all CPUs reach the do_array_test(). Remove the exit rendezvous
since stop_core_cpuslocked() already guarantees that.
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20240125082254.424859-5-ashok.raj@intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Add the current batch number in the trace output. When there are
failures, it's important to know which test content resulted in failure.
# TASK-PID CPU# ||||| TIMESTAMP FUNCTION
# | | | ||||| | |
migration/0-18 [000] d..1. 527287.084668: ifs_status: batch: 02, start: 0000, stop: 007f, status: 0000000000007f80
migration/128-785 [128] d..1. 527287.084669: ifs_status: batch: 02, start: 0000, stop: 007f, status: 0000000000007f80
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20240125082254.424859-4-ashok.raj@intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Enable the trace function on all HT threads. Currently, the trace is
called from some arbitrary CPU where the test was invoked.
This change gives visibility to the exact errors as seen by each
participating HT threads, and not just what was seen from the primary
thread.
Sample output below.
# TASK-PID CPU# ||||| TIMESTAMP FUNCTION
# | | | ||||| | |
migration/0-18 [000] d..1. 527287.084668: start: 0000, stop: 007f, status: 0000000000007f80
migration/128-785 [128] d..1. 527287.084669: start: 0000, stop: 007f, status: 0000000000007f80
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://lore.kernel.org/r/20240125082254.424859-3-ashok.raj@intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Use the standard array allocation variant of devm memory allocation
APIs.
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Link: https://lore.kernel.org/r/20240125125401.597617-1-suma.hegde@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
AMD supports connecting up to 8 AMD EPYCs in a system.
Hence, verify the num_sockets returned from amd_nb_num().
Also remove the WARN_ON() since the num_sockets is already verified.
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Reviewed-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240106022532.1746932-9-suma.hegde@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
AMD EPYC family 0x1A and Model 0x0-0xF are having different
mailbox message ID offset compared to previous
platforms. In case of ACPI based BIOS, this information will be read
from ACPI table, for non-ACPI BIOS, this needs to be #defined.
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240106022532.1746932-8-suma.hegde@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
ACPI table provides mailbox base address and register offset
information. The base address is provided as part of CRS method
and mailbox offsets are provided through DSD table.
Sockets are differentiated by UIDs.
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240106022532.1746932-7-suma.hegde@amd.com
[ij: Removed extra parenthesis.]
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Split the creation of array of attribute groups and array of attributes
into different functions. This will ease the ACPI support.
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240106022532.1746932-6-suma.hegde@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
On an ACPI enabled platforms the probe is called for each socket
and the struct dev is different for each socket. This change
will help in handling both ACPI and non-ACPI platforms.
Also change pr_err() to dev_err() API.
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240106022532.1746932-5-suma.hegde@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Add touch screen info for TECLAST X16 Plus tablet.
Signed-off-by: Phoenix Chen <asbeltogf@gmail.com>
Link: https://lore.kernel.org/r/20240126095308.5042-1-asbeltogf@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Missing release_firmware() due to error handling blocked any future image
loading.
Fix the return code and release_fiwmare() to release the bad image.
Fixes: 25a76dbb36 ("platform/x86/intel/ifs: Validate image size")
Reported-by: Pengfei Xu <pengfei.xu@intel.com>
Signed-off-by: Jithu Joseph <jithu.joseph@intel.com>
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Tested-by: Pengfei Xu <pengfei.xu@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240125082254.424859-2-ashok.raj@intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
amd_pmf_get_pb_data() will allocate memory for the policy buffer,
but does not free it if copy_from_user() fails. This leads to a memory
leak.
Fixes: 10817f28e5 ("platform/x86/amd/pmf: Add capability to sideload of policy binary")
Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Cong Liu <liucong2@kylinos.cn>
Link: https://lore.kernel.org/r/20240124012939.6550-1-liucong2@kylinos.cn
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
AMD SFH driver has APIs defined to export the ambient light information;
use this within the PMF driver to send inputs to the PMF TA, so that PMF
driver can enact to the actions coming from the TA.
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20240123141458.3715211-2-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
AMD SFH driver has APIs defined to export the human presence information;
use this within the PMF driver to send inputs to the PMF TA, so that PMF
driver can enact to the actions coming from the TA.
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20240123141458.3715211-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Define struct hsmp_mbaddr_info with register offsets and populate
them during probe, which avoids the usage of macros in core functions.
During ACPI probe, the same fields can be populated from ACPI table.
Also move plat dev init to a static function.
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240106022532.1746932-4-suma.hegde@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Create a static function and call platform device alloc and add device,
which will simplify handling acpi and plat device probing.
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240106022532.1746932-3-suma.hegde@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Cache pci_dev obj during probe as part of struct hsmp_socket
and use in amd_hsmp_rdwr(). This change will make it easier to
support both non-ACPI and ACPI devices.
Also add a check for sock_index agsint number of sockets
in the hsmp_send_message().
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240106022532.1746932-2-suma.hegde@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This is in advance to supporting ACPI based probe.
In case of non-ACPI driver, hsmp_test() can be
performed either in plat init() or in probe().
however, in case of ACPI probing, hsmp_test() cannot
be called in init(), as the mailbox reg offsets and
base addresses are read from ACPI table in the probe().
Hence, move hsmp_test() to probe as preparation for
ACPI support.
Also use hsmp_send_message() directly in hsmp_test()
as the semaphore is already initialized in probe.
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240106022532.1746932-1-suma.hegde@amd.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
The device name inside the ACPI netlink event is limited to
15 characters, so the WMI device name will get truncated.
This can be observed with kacpimon when receiving an event
from WMI device "9DBB5994-A997-11DA-B012-B622A1EF5492":
netlink: 9DBB5994-A997- 000000d0 00000000
Fix this by using the shorter device name from the ACPI
bus device instead. This still allows users to uniquely
identify the WMI device by using the notify id (0xd0).
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240121200824.2778-1-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Per filesystems/sysfs.rst, show() should only use sysfs_emit()
or sysfs_emit_at() when formatting the value to be returned to user space.
coccinelle complains that there are still a couple of functions that use
snprintf(). Convert them to sysfs_emit().
> ./drivers/platform/mellanox/mlxbf-bootctl.c:466:8-16: WARNING: please use sysfs_emit
> ./drivers/platform/mellanox/mlxbf-bootctl.c:584:8-16: WARNING: please use sysfs_emit
> ./drivers/platform/mellanox/mlxbf-bootctl.c:635:8-16: WARNING: please use sysfs_emit
> ./drivers/platform/mellanox/mlxbf-bootctl.c:686:8-16: WARNING: please use sysfs_emit
> ./drivers/platform/mellanox/mlxbf-bootctl.c:737:8-16: WARNING: please use sysfs_emit
> ./drivers/platform/mellanox/mlxbf-bootctl.c:788:8-16: WARNING: please use sysfs_emit
> ./drivers/platform/mellanox/mlxbf-bootctl.c:839:8-16: WARNING: please use sysfs_emit
No functional change intended
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Link: https://lore.kernel.org/r/20240116045151.3940401-12-lizhijian@fujitsu.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
New Thinkpads have added a 'Mode' Function key that on Windows allows
you to choose the active profile (low-power, balanced, performance)
Added suppoort for this hotkey (F8), and have it cycle through the
options available.
Tested on X1 Carbon G12.
Signed-off-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240120232949.317337-1-mpearson-lenovo@squebb.ca
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Since 64f67b5240 ("leds: trigger: audio: Add an activate callback to
ensure the initial brightness is set") the audio triggers have an
activate callback which sets the LED brightness as soon as the
(default) trigger is bound to the LED device. So we can remove the
call to ledtrig_audio_get.
Positive side effect: There's no code dependency to ledtrig-audio any
longer, what allows to remove some Kconfig dependencies.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/daef7331-dcb4-4b3a-802e-656629486b4c@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
The error message in this code can't be reached because value is either
zero or non-zero. There isn't a third option. Really, it's nicer to
write this as a one liner.
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/a58bffb7-0a8b-4195-b273-f65a188ace7b@moroto.mountain
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
The variable i is being initialized with the value 0 that is never
read, it is being re-assigned 0 again in a for-loop statement later
on. The initialization is redundant and can be removed.
The initialization of variable n can also be deferred after the
sanity check on pointer n and the declaration of all the int variables
can be combined as a final code clear-up.
Cleans up clang scan build warning:
warning: Value stored to 'i' is never read [deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240106154740.55202-1-colin.i.king@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
The event selector fields for 2 counters are contained in one
32-bit register and the current logic does not account for this.
Fixes: 423c336185 ("platform/mellanox: mlxbf-pmc: Add support for BlueField-3")
Signed-off-by: Shravan Kumar Ramani <shravankr@nvidia.com>
Reviewed-by: David Thompson <davthompson@nvidia.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/8834cfa496c97c7c2fcebcfca5a2aa007e20ae96.1705485095.git.shravankr@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Starting from Linux 5.16 kernel, Tx timeout mechanism was added
in the virtio_net driver which prints the "Tx timeout" warning
message when a packet stays in Tx queue for too long. Below is an
example of the reported message:
"[494105.316739] virtio_net virtio1 tmfifo_net0: TX timeout on
queue: 0, sq: output.0, vq: 0×1, name: output.0, usecs since
last trans: 3079892256".
This issue could happen when external host driver which drains the
FIFO is restared, stopped or upgraded. To avoid such confusing
"Tx timeout" messages, this commit adds logic to drop the outstanding
Tx packet if it's not able to transmit in two seconds due to Tx FIFO
full, which can be considered as congestion or out-of-resource drop.
This commit also handles the special case that the packet is half-
transmitted into the Tx FIFO. In such case, the packet is discarded
with remaining length stored in vring->rem_padding. So paddings with
zeros can be sent out when Tx space is available to maintain the
integrity of the packet format. The padded packet will be dropped on
the receiving side.
Signed-off-by: Liming Sun <limings@nvidia.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240111173106.96958-1-limings@nvidia.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
The acpi4asus project appears to be defunct, according to:
https://sourceforge.net/p/acpi4asus/mailman/acpi4asus-user/
the last posts to the list were done in May 2020 and even then
they were mostly spam.
And the http://acpi4asus.sf.net website still talks about 2.6.x kernels.
Drop the defunct mailing-list and update the W: entry to point to
the new up2date https://asus-linux.org/ site.
Cc: Corentin Chary <corentin.chary@gmail.com>
Cc: Luke D. Jones <luke@ljones.dev>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Add myself as maintainer for "ASUS NOTEBOOKS AND EEEPC ACPI/WMI EXTRAS
DRIVERS" as suggested by Hans de Goede based on my history of
contributions.
Signed-off-by: Luke D. Jones <luke@ljones.dev>
Link: https://lore.kernel.org/r/20240115211829.48251-1-luke@ljones.dev
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Since when the driver was converted to use the bus-based WMI
interface, the old GUID-based WMI functions are not used anymore.
Update the error message to avoid confusing users.
Compile-tested only.
Fixes: 75c487fcb6 ("platform/x86: intel-wmi-sbl-fw-update: Use bus-based WMI interface")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240106224126.13803-1-W_Armin@gmx.de
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Accesses to resource[] member of struct pci_dev shall be wrapped with
pci_resource_n() for future compatibility. Call the helper function in
p2sb_read_bar0().
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Link: https://lore.kernel.org/r/20240108062059.3583028-3-shinichiro.kawasaki@wdc.com
Tested-by Klara Modin <klarasmodin@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
p2sb_bar() unhides P2SB device to get resources from the device. It
guards the operation by locking pci_rescan_remove_lock so that parallel
rescans do not find the P2SB device. However, this lock causes deadlock
when PCI bus rescan is triggered by /sys/bus/pci/rescan. The rescan
locks pci_rescan_remove_lock and probes PCI devices. When PCI devices
call p2sb_bar() during probe, it locks pci_rescan_remove_lock again.
Hence the deadlock.
To avoid the deadlock, do not lock pci_rescan_remove_lock in p2sb_bar().
Instead, do the lock at fs_initcall. Introduce p2sb_cache_resources()
for fs_initcall which gets and caches the P2SB resources. At p2sb_bar(),
refer the cache and return to the caller.
Before operating the device at P2SB DEVFN for resource cache, check
that its device class is PCI_CLASS_MEMORY_OTHER 0x0580 that PCH
specifications define. This avoids unexpected operation to other devices
at the same DEVFN.
Link: https://lore.kernel.org/linux-pci/6xb24fjmptxxn5js2fjrrddjae6twex5bjaftwqsuawuqqqydx@7cl3uik5ef6j/
Fixes: 9745fb0747 ("platform/x86/intel: Add Primary to Sideband (P2SB) bridge support")
Cc: stable@vger.kernel.org
Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Link: https://lore.kernel.org/r/20240108062059.3583028-2-shinichiro.kawasaki@wdc.com
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Tested-by Klara Modin <klarasmodin@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
When booting a kernel with CONFIG_CFI_CLANG, there is a CFI failure when
accessing any of the values under
/sys/devices/system/cpu/intel_uncore_frequency/package_00_die_00:
$ cat /sys/devices/system/cpu/intel_uncore_frequency/package_00_die_00/max_freq_khz
fish: Job 1, 'cat /sys/devices/system/cpu/int…' terminated by signal SIGSEGV (Address boundary error)
$ sudo dmesg &| grep 'CFI failure'
[ 170.953925] CFI failure at kobj_attr_show+0x19/0x30 (target: show_max_freq_khz+0x0/0xc0 [intel_uncore_frequency_common]; expected type: 0xd34078c5
The sysfs callback functions such as show_domain_id() are written as if
they are going to be called by dev_attr_show() but as the above message
shows, they are instead called by kobj_attr_show(). kCFI checks that the
destination of an indirect jump has the exact same type as the prototype
of the function pointer it is called through and fails when they do not.
These callbacks are called through kobj_attr_show() because
uncore_root_kobj was initialized with kobject_create_and_add(), which
means uncore_root_kobj has a ->sysfs_ops of kobj_sysfs_ops from
kobject_create(), which uses kobj_attr_show() as its ->show() value.
The only reason there has not been a more noticeable problem until this
point is that 'struct kobj_attribute' and 'struct device_attribute' have
the same layout, so getting the callback from container_of() works the
same with either value.
Change all the callbacks and their uses to be compatible with
kobj_attr_show() and kobj_attr_store(), which resolves the kCFI failure
and allows the sysfs files to work properly.
Closes: https://github.com/ClangBuiltLinux/linux/issues/1974
Fixes: ae7b2ce578 ("platform/x86/intel/uncore-freq: Use sysfs API to create attributes")
Cc: stable@vger.kernel.org
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20240104-intel-uncore-freq-kcfi-fix-v1-1-bf1e8939af40@kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This has a reversed if statement so it accidentally disables the wmi
method before returning.
Fixes: 704af3a407 ("platform/x86: wmi: Remove chardev interface")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/9c81251b-bc87-4ca3-bb86-843dc85e5145@moroto.mountain
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
When an legacy WMI event handler is removed, an WMI event could
have called the handler just before it was removed, meaning the
handler could still be running after wmi_remove_notify_handler()
returns.
Something similar could also happens when using the WMI bus, as
the WMI core might still call the notify() callback from an WMI
driver even if its remove() callback was just called.
Fix this by introducing a rw semaphore which ensures that the
event state of a WMI device does not change while the WMI core
is handling an event for it.
Tested on a Dell Inspiron 3505 and a Acer Aspire E1-731.
Fixes: 1686f54445 ("platform/x86: wmi: Incorporate acpi_install_notify_handler")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240103192707.115512-5-W_Armin@gmx.de
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Until now, legacy WMI notify handler functions where using the
wmi_block_list, which did no refcounting on the returned WMI device.
This meant that the WMI device could disappear at any moment,
potentially leading to various errors.
Fix this by using bus_find_device() which returns an actual
reference to the found WMI device.
Tested on a Dell Inspiron 3505 and a Acer Aspire E1-731.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240103192707.115512-4-W_Armin@gmx.de
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Commit 58f6425eb9 ("WMI: Cater for multiple events with same GUID")
allowed legacy WMI notify handlers to be installed for multiple WMI
devices with the same GUID.
However this is useless since the legacy GUID-based interface is
blacklisted from seeing WMI devices with duplicated GUIDs.
Return immediately if a suitable WMI event is found in
wmi_install/remove_notify_handler() since searching for other suitable
events is pointless.
Tested on a Dell Inspiron 3505 and a Acer Aspire E1-731.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240103192707.115512-3-W_Armin@gmx.de
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
When wmi_install_notify_handler()/wmi_remove_notify_handler() are
unable to enable/disable the WMI device, they unconditionally return
an error to the caller.
When registering legacy WMI notify handlers, this means that the
callback remains registered despite wmi_install_notify_handler()
having returned an error.
When removing legacy WMI notify handlers, this means that the
callback is removed despite wmi_remove_notify_handler() having
returned an error.
Fix this by only warning when the WMI device could not be enabled.
This behaviour matches the bus-based WMI interface.
Tested on a Dell Inspiron 3505 and a Acer Aspire E1-731.
Fixes: 58f6425eb9 ("WMI: Cater for multiple events with same GUID")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20240103192707.115512-2-W_Armin@gmx.de
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
- assorted prep work for disk space accounting rewrite
- BTREE_TRIGGER_ATOMIC: after combining our trigger callbacks, this
makes our trigger context more explicit
- A few fixes to avoid excessive transaction restarts on multithreaded
workloads: fstests (in addition to ktest tests) are now checking
slowpath counters, and that's shaking out a few bugs
- Assorted tracepoint improvements
- Starting to break up bcachefs_format.h and move on disk types so
they're with the code they belong to; this will make room to start
documenting the on disk format better.
- A few minor fixes
-----BEGIN PGP SIGNATURE-----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=yd+F
-----END PGP SIGNATURE-----
Merge tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs
Pull more bcachefs updates from Kent Overstreet:
"Some fixes, Some refactoring, some minor features:
- Assorted prep work for disk space accounting rewrite
- BTREE_TRIGGER_ATOMIC: after combining our trigger callbacks, this
makes our trigger context more explicit
- A few fixes to avoid excessive transaction restarts on
multithreaded workloads: fstests (in addition to ktest tests) are
now checking slowpath counters, and that's shaking out a few bugs
- Assorted tracepoint improvements
- Starting to break up bcachefs_format.h and move on disk types so
they're with the code they belong to; this will make room to start
documenting the on disk format better.
- A few minor fixes"
* tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs: (46 commits)
bcachefs: Improve inode_to_text()
bcachefs: logged_ops_format.h
bcachefs: reflink_format.h
bcachefs; extents_format.h
bcachefs: ec_format.h
bcachefs: subvolume_format.h
bcachefs: snapshot_format.h
bcachefs: alloc_background_format.h
bcachefs: xattr_format.h
bcachefs: dirent_format.h
bcachefs: inode_format.h
bcachefs; quota_format.h
bcachefs: sb-counters_format.h
bcachefs: counters.c -> sb-counters.c
bcachefs: comment bch_subvolume
bcachefs: bch_snapshot::btime
bcachefs: add missing __GFP_NOWARN
bcachefs: opts->compression can now also be applied in the background
bcachefs: Prep work for variable size btree node buffers
bcachefs: grab s_umount only if snapshotting
...
- A fix for the idle and iowait time accounting vs. CPU hotplug.
The time is reset on CPU hotplug which makes the accumulated
systemwide time jump backwards.
- Assorted fixes and improvements for clocksource/event drivers
-----BEGIN PGP SIGNATURE-----
iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAmWtTLgTHHRnbHhAbGlu
dXRyb25peC5kZQAKCRCmGPVMDXSYoUXiD/4uN4Ntps8TwxSdg1X11M6++rizg9q9
EmIfwWcfQQJDM5Ss5FE88ye55NxIOwJ1brYo08+yTAXjnnZ/yNP1BBegHbMNiGil
NCHye7tYKZle25+hErdgfBB9n6brPz7dPOvV04/wRRWW+9p2ejt/5nEvojkyco9Y
S9KgBCxkvUqScMbdKKFW1UsThWh2euxwQXRGiWhTPPkbKcVynPvQJjvVyRxn01NS
eEhTn8YUNcAPT+1YApouGXrSCxo/IzBJ36CxOoCoUfaXcJ6FG1LLeAjNxKZ26Dfs
Ah0e3Hhyv6KOsBvBNwwabXDwryd6L8rZd8yL2KakI1vIC51uS2wneFy8GCieDVGh
xmy3U/tfkS0L7pmN+dQW2l4k9PHRNrwvbISKhs0UAHSOgGIMHZcjE6aFbYKru5i4
1W+dEjiktlceZ94mrEHbLpKmxWH2z5P8m0BzUs4kt3nkaOf6CTUKqa/qdAiU5dv+
lovKT26L8HBrMXf48I70UpgW/bYzOUGk55sR6hiLTXAelz1z02D1uYHFkshc0NCO
/O4wvHcgvMM46CtWVbim42AlRcyyWCr+FrY+jvfiG2icOcHPLqc81iHL8EKj7pJl
IxLgyPHVckgnE5gx+GQ8aDkg/qwCZnj4rFWgub8QMYtjI+pO+9T9kPAYPCxFhP7J
gmcJxZAB2RnKXA==
=RD6E
-----END PGP SIGNATURE-----
Merge tag 'timers-core-2024-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer updates from Thomas Gleixner:
"Updates for time and clocksources:
- A fix for the idle and iowait time accounting vs CPU hotplug.
The time is reset on CPU hotplug which makes the accumulated
systemwide time jump backwards.
- Assorted fixes and improvements for clocksource/event drivers"
* tag 'timers-core-2024-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tick-sched: Fix idle and iowait sleeptime accounting vs CPU hotplug
clocksource/drivers/ep93xx: Fix error handling during probe
clocksource/drivers/cadence-ttc: Fix some kernel-doc warnings
clocksource/drivers/timer-ti-dm: Fix make W=n kerneldoc warnings
clocksource/timer-riscv: Add riscv_clock_shutdown callback
dt-bindings: timer: Add StarFive JH8100 clint
dt-bindings: timer: thead,c900-aclint-mtimer: separate mtime and mtimecmp regs
- 18f14afe28 powerpc/64s: Increase default stack size to 32KB BY: Michael Ellerman
Thanks to:
Michael Ellerman
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQTYs9CDOrDQRwKRmtrJvCLnGrjHVgUCZayxkgAKCRDJvCLnGrjH
Vv2hAQDwvyYydFw64D7bnaFJDLvOwi3SL02OBaFYV1JTr8rf/QEA8NcTuqXis5o5
NedFYVE5PhYGWfyPD63aL+JpUKxsXwc=
=Ud9v
-----END PGP SIGNATURE-----
Merge tag 'powerpc-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Aneesh Kumar:
- Increase default stack size to 32KB for Book3S
Thanks to Michael Ellerman.
* tag 'powerpc-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64s: Increase default stack size to 32KB
