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Author SHA1 Message Date
Greg Kroah-Hartman
c6c631d2b7 driver core: mark async_driver as a const * 
Within struct device_private, mark the async_driver * as const as it is
never modified.  This requires some internal-to-the-driver-core
functions to also have their parameters marked as constant, and there is
one place where we cast _back_ from the const pointer to a real one, as
the driver core still wants to modify the structure in a number of
remaining places.

Cc: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20240611130103.3262749-12-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-06-13 16:44:00 +02:00
Greg Kroah-Hartman
f6e98ef5f7 driver core: make driver_detach() take a const * 
driver_detach() does not modify the driver itself, so make the pointer
constant.  In doing so, the function driver_allows_async_probing() also
needs to be changed so that the pointer type passes through to that
function properly.

Cc: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20240611130103.3262749-11-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-06-13 16:43:54 +02:00
Greg Kroah-Hartman
33ebea9bc0 driver core: make device_release_driver_internal() take a const * 
Change device_release_driver_internal() to take a const struct
device_driver * as it is not modifying it at all.

Cc: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20240611130103.3262749-10-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-06-13 16:43:53 +02:00
Greg Kroah-Hartman
0725e8f9c4 driver core: driver: mark driver_add/remove_groups constant 
driver_add_groups() and driver_remove_groups should take a constant
pointer as the structure is not modified, so make the change.

Cc: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20240611130103.3262749-9-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-06-13 16:43:51 +02:00
Greg Kroah-Hartman
841b7ebf81 driver core: platform: fix ups for constant struct device_driver 
Fix up a few places in the platform core code that can easily handle
struct device_driver being constant.  This is part of the work to make
all struct device_driver pointers be constant.

Cc: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20240611130103.3262749-8-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-06-13 16:43:46 +02:00
Greg Kroah-Hartman
ff985c7597 auxbus: make to_auxiliary_drv accept and return a constant pointer 
In the quest to make struct device constant, start by making
to_auxiliary_drv() return a constant pointer so that drivers that call
this can be fixed up before the driver core changes.

As the return type previously was not constant, also fix up all callers
that were assuming that the pointer was not going to be a constant one
in order to not break the build.

Cc: Dave Ertman <david.m.ertman@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Bingbu Cao <bingbu.cao@intel.com>
Cc: Tianshu Qiu <tian.shu.qiu@intel.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Michael Chan <michael.chan@broadcom.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>
Cc: Tony Nguyen <anthony.l.nguyen@intel.com>
Cc: Saeed Mahameed <saeedm@nvidia.com>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Tariq Toukan <tariqt@nvidia.com>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Cc: Bard Liao <yung-chuan.liao@linux.intel.com>
Cc: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Cc: Daniel Baluta <daniel.baluta@nxp.com>
Cc: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.com>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: linux-media@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: intel-wired-lan@lists.osuosl.org
Cc: linux-rdma@vger.kernel.org
Cc: sound-open-firmware@alsa-project.org
Cc: linux-sound@vger.kernel.org
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> # drivers/media/pci/intel/ipu6
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com>
Link: https://lore.kernel.org/r/20240611130103.3262749-7-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-06-13 16:43:26 +02:00
Rodrigo Vivi
89aa02edaa
Merge drm/drm-next into drm-xe-next 
Needed to get tracing cleanup and add mmio tracing series.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
 2024-06-12 11:31:42 -04:00
José Roberto de Souza
3b9c181bcd
devcoredump: Add dev_coredumpm_timeout() 
Add function to set a custom coredump timeout.

For Xe driver usage, current 5 minutes timeout may be too short for
users to search and understand what needs to be done to capture
coredump to report bugs.

We have plans to automate(distribute a udev script) it but at the end
will be up to distros and users to pack it so having a option to
increase the timeout is a safer option.

v2:
- replace dev_coredump_timeout_set() by dev_coredumpm_timeout() (Mukesh)

v3:
- make dev_coredumpm() static inline (Johannes)

v5:
- rename DEVCOREDUMP_TIMEOUT -> DEVCD_TIMEOUT to avoid redefinition
in include/net/bluetooth/coredump.h

v6:
- fix definition of dev_coredumpm_timeout() when CONFIG_DEV_COREDUMP
is disabled

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Mukesh Ojha <quic_mojha@quicinc.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Jonathan Cavitt <jonathan.cavitt@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20240611174716.72660-1-jose.souza@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
 2024-06-12 11:29:36 -04:00
Vincenzo Mezzela
880f5f58fd drivers: arch_topology: use __free attribute instead of of_node_put() 
Introduce the __free attribute for scope-based resource management.
Resources allocated with __free are automatically released at the end of
the scope. This enhancement aims to mitigate memory management issues
associated with forgetting to release resources by utilizing __free
instead of of_node_put().

The declaration of the device_node used within the do-while loops is
moved directly within the loop so that the resource is automatically
freed at the end of each iteration.

Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Suggested-by: Julia Lawall <julia.lawall@inria.fr>
Signed-off-by: Vincenzo Mezzela <vincenzo.mezzela@gmail.com>
Link: https://lore.kernel.org/r/20240607163350.392971-3-vincenzo.mezzela@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-06-11 09:31:04 +02:00
Vincenzo Mezzela
97b1974547 drivers: arch_topology: Refactor do-while loops 
Refactor do-while loops to move break condition within the loop's scope.
This modification is in preparation to move the declaration of the
device_node directly within the loop and take advantage of the automatic
cleanup feature provided by the __free(device_node) attribute.

Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Vincenzo Mezzela <vincenzo.mezzela@gmail.com>
Link: https://lore.kernel.org/r/20240607163350.392971-2-vincenzo.mezzela@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-06-11 09:31:04 +02:00
Mark Brown
540c53d158
regmap: Switch to use kmemdup_array() 
Merge series from Andy Shevchenko <andriy.shevchenko@linux.intel.com>:

Replace open coded kmemdup_array(), which does an additional
overflow check.

While at it, fix one minor issue in regcache.c.
 2024-06-07 20:57:22 +01:00
Greg Kroah-Hartman
bd7246a19e Change struct platform_driver::remove() to return void 
This is step b) of the plan outlined in commit 5c5a7680e6 ("platform:
 Provide a remove callback that returns no value"), which completes the
 first major step of making the remove callback return no value. Up to
 now it returned an int which however was mostly ignored by the driver
 core and lured driver authors to believe there is some error handling.
 
 Note that the Linux driver model assumes that removing a device cannot
 fail, so this isn't about being lazy and not implementing error handling
 in the core and so making .remove return void is the right thing to do.
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Merge tag 'platform-remove-void-step-b' of https://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux into driver-core-next

Uwe writes:

Change struct platform_driver::remove() to return void

This is step b) of the plan outlined in commit 5c5a7680e6 ("platform:
Provide a remove callback that returns no value"), which completes the
first major step of making the remove callback return no value. Up to
now it returned an int which however was mostly ignored by the driver
core and lured driver authors to believe there is some error handling.

Note that the Linux driver model assumes that removing a device cannot
fail, so this isn't about being lazy and not implementing error handling
in the core and so making .remove return void is the right thing to do.

* tag 'platform-remove-void-step-b' of https://git.kernel.org/pub/scm/linux/kernel/git/ukleinek/linux:
  platform: Make platform_driver::remove() return void
  samples: qmi: Convert to platform remove callback returning void
  nvdimm/of_pmem: Convert to platform remove callback returning void
  nvdimm/e820: Convert to platform remove callback returning void
  gpu: ipu-v3: Convert to platform remove callback returning void
  gpu: host1x: Convert to platform remove callback returning void
  drm/mediatek: Convert to platform remove callback returning void
  drm/imagination: Convert to platform remove callback returning void
  gpu: host1x: mipi: Benefit from devm_clk_get_prepared()
  pps: clients: gpio: Convert to platform remove callback returning void
  fsi: occ: Convert to platform remove callback returning void
  fsi: master-gpio: Convert to platform remove callback returning void
  fsi: master-ast-cf: Convert to platform remove callback returning void
  fsi: master-aspeed: Convert to platform remove callback returning void
  reset: ti-sci: Convert to platform remove callback returning void
  reset: rzg2l-usbphy-ctrl: Convert to platform remove callback returning void
  reset: meson-audio-arb: Convert to platform remove callback returning void
 2024-06-07 21:07:09 +02:00
Lucas Stach
11c63e5740 firmware: add nowarn variant of request_firmware_nowait() 
Device drivers with optional firmware may still want to use the
asynchronous firmware loading interface. To avoid printing a
warning into the kernel log when the optional firmware is
absent, add a nowarn variant of this interface.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20240516102532.213874-1-l.stach@pengutronix.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>
 2024-06-07 23:14:45 +05:30
Andy Shevchenko
f82ecf76cd
regmap: kunit: Use array_size() and sizeof(*ptr) consistently 
Some of the allocations use explit sizeof(type) instead of sizeof(*ptr),
which is fragile. In particular, stress_insert() allocates double
of memory without obvious need for a test. Convert all allocations
to use array_size() and sizeof(*ptr) to eliminate similar mistakes
or wrong memory sizes.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240606202102.3108729-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-06-07 14:29:41 +01:00
Andy Shevchenko
bce8430658
regmap: maple: Switch to use kmemdup_array() 
Let the kememdup_array() take care about multiplication and possible
overflows.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240606164717.3031107-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-06-07 14:28:23 +01:00
Andy Shevchenko
f755d69553
regmap: cache: Switch to use kmemdup_array() 
Let the kememdup_array() take care about multiplication and possible
overflows.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240606164717.3031107-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-06-07 14:28:22 +01:00
Andy Shevchenko
354662dc66
regmap: cache: Use correct type of the rb_for_each() parameter 
Compiler is not happy:

  regcache.c:410:9: warning: Using plain integer as NULL pointer

Replace integer 0 by NULL.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240606164717.3031107-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-06-07 14:28:21 +01:00
Andy Shevchenko
f6841d41a8
regmap: Switch to use kmemdup_array() 
Let the kememdup_array() take care about multiplication and possible
overflows.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240606164717.3031107-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-06-07 14:28:21 +01:00
Andy Shevchenko
d4ea1d504d
regmap: spi: Fix potential off-by-one when calculating reserved size 
If we ever meet a hardware that uses weird register bits and padding,
we may end up in off-by-one error since x/8 + y/8 might not be equal
to (x + y)/8 in some cases.

bits    pad   x/8+y/8 (x+y)/8
4..7    0..3    0       0 // x + y from 4 up to 7
4..7    4..7    0       1 // x + y from 8 up to 11
4..7    8..11   1       1 // x + y from 12 up to 15
8..15   0..7    1       1 // x + y from 8 up to 15
8..15   8..15   2       2 // x + y from 16 up to 23

Fix this by using (x+y)/8.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://msgid.link/r/20240605205315.19132-1-andy.shevchenko@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-06-05 22:23:52 +01:00
Dirk Behme
c0a40097f0 drivers: core: synchronize really_probe() and dev_uevent() 
Synchronize the dev->driver usage in really_probe() and dev_uevent().
These can run in different threads, what can result in the following
race condition for dev->driver uninitialization:

Thread #1:
==========

really_probe() {
...
probe_failed:
...
device_unbind_cleanup(dev) {
    ...
    dev->driver = NULL;   // <= Failed probe sets dev->driver to NULL
    ...
    }
...
}

Thread #2:
==========

dev_uevent() {
...
if (dev->driver)
      // If dev->driver is NULLed from really_probe() from here on,
      // after above check, the system crashes
      add_uevent_var(env, "DRIVER=%s", dev->driver->name);
...
}

really_probe() holds the lock, already. So nothing needs to be done
there. dev_uevent() is called with lock held, often, too. But not
always. What implies that we can't add any locking in dev_uevent()
itself. So fix this race by adding the lock to the non-protected
path. This is the path where above race is observed:

 dev_uevent+0x235/0x380
 uevent_show+0x10c/0x1f0  <= Add lock here
 dev_attr_show+0x3a/0xa0
 sysfs_kf_seq_show+0x17c/0x250
 kernfs_seq_show+0x7c/0x90
 seq_read_iter+0x2d7/0x940
 kernfs_fop_read_iter+0xc6/0x310
 vfs_read+0x5bc/0x6b0
 ksys_read+0xeb/0x1b0
 __x64_sys_read+0x42/0x50
 x64_sys_call+0x27ad/0x2d30
 do_syscall_64+0xcd/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Similar cases are reported by syzkaller in

https://syzkaller.appspot.com/bug?extid=ffa8143439596313a85a

But these are regarding the *initialization* of dev->driver

dev->driver = drv;

As this switches dev->driver to non-NULL these reports can be considered
to be false-positives (which should be "fixed" by this commit, as well,
though).

The same issue was reported and tried to be fixed back in 2015 in

https://lore.kernel.org/lkml/1421259054-2574-1-git-send-email-a.sangwan@samsung.com/

already.

Fixes: 239378f16a ("Driver core: add uevent vars for devices of a class")
Cc: stable <stable@kernel.org>
Cc: syzbot+ffa8143439596313a85a@syzkaller.appspotmail.com
Cc: Ashish Sangwan <a.sangwan@samsung.com>
Cc: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Dirk Behme <dirk.behme@de.bosch.com>
Link: https://lore.kernel.org/r/20240513050634.3964461-1-dirk.behme@de.bosch.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-06-04 18:14:51 +02:00
Greg Kroah-Hartman
9711873506 driver core: remove devm_device_add_groups() 
There is no more in-kernel users of this function, and no driver should
ever be using it, so remove it from the kernel.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Link: https://lore.kernel.org/r/20230704131715.44454-8-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-06-04 15:53:36 +02:00
Mark Brown
0ae7477599 Linux 6.10-rc2 
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regmap: Merge up fixes

We need these to get the i.MX8 boards working in CI again.
 2024-06-03 12:59:25 +01:00
Jeff Johnson
a8bd778958
regmap: kunit: add missing MODULE_DESCRIPTION() 
make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-kunit.o

Add the missing invocation of the MODULE_DESCRIPTION() macro.

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Link: https://msgid.link/r/20240530-md-regmap-kunit-v1-1-976c0f616751@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-05-31 13:41:32 +01:00
Uwe Kleine-König
0edb555a65 platform: Make platform_driver::remove() return void 
struct platform_driver::remove returning an integer made driver authors
expect that returning an error code was proper error handling. However
the driver core ignores the error and continues to remove the device
because there is nothing the core could do anyhow and reentering the
remove callback again is only calling for trouble.

To prevent such wrong assumptions, change the return type of the remove
callback to void. This was prepared by introducing an alternative remove
callback returning void and converting all drivers to that. So .remove()
can be changed without further changes in drivers.

This corresponds to step b) of the plan outlined in commit
5c5a7680e6 ("platform: Provide a remove callback that returns no value").

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
 2024-05-27 10:34:35 +02:00
Richard Fitzgerald
c3820641da
regmap: kunit: Fix memory leaks in gen_regmap() and gen_raw_regmap() 
- Use kunit_kcalloc() to allocate the defaults table so that it will be
  freed when the test case ends.
- kfree() the buf and *data buffers on the error paths.
- Use kunit_add_action_or_reset() instead of kunit_add_action() so that
  if it fails it will call regmap_exit().

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240411103724.54063-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-05-27 01:31:31 +01:00
Jim Wylder
611b7eb19d
regmap-i2c: Subtract reg size from max_write 
Currently, when an adapter defines a max_write_len quirk,
the data will be chunked into data sizes equal to the
max_write_len quirk value.  But the payload will be increased by
the size of the register address before transmission.  The
resulting value always ends up larger than the limit set
by the quirk.

Avoid this error by setting regmap's max_write to the quirk's
max_write_len minus the number of bytes for the register and
padding.  This allows the chunking to work correctly for this
limited case without impacting other use-cases.

Signed-off-by: Jim Wylder <jwylder@google.com>
Link: https://msgid.link/r/20240523211437.2839942-1-jwylder@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-05-27 01:30:33 +01:00
Linus Torvalds
09f8f2c4ca regmap: Fix for v6.10 
Guenter ran with memory sanitisers and found an issue in the new KUnit
 tests that Richard added where an assumption in older test code was
 exposed, this was fixed quickly by Richard.
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Merge tag 'regmap-fix-v6.10-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap fix from Mark Brown:
 "Guenter ran with memory sanitisers and found an issue in the new KUnit
  tests that Richard added where an assumption in older test code was
  exposed, this was fixed quickly by Richard"

* tag 'regmap-fix-v6.10-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: kunit: Fix array overflow in stride() test
 2024-05-23 13:38:31 -07:00
Steven Rostedt (Google)
2c92ca849f tracing/treewide: Remove second parameter of __assign_str() 
With the rework of how the __string() handles dynamic strings where it
saves off the source string in field in the helper structure[1], the
assignment of that value to the trace event field is stored in the helper
value and does not need to be passed in again.

This means that with:

  __string(field, mystring)

Which use to be assigned with __assign_str(field, mystring), no longer
needs the second parameter and it is unused. With this, __assign_str()
will now only get a single parameter.

There's over 700 users of __assign_str() and because coccinelle does not
handle the TRACE_EVENT() macro I ended up using the following sed script:

  git grep -l __assign_str | while read a ; do
      sed -e 's/\(__assign_str([^,]*[^ ,]\) *,[^;]*/\1)/' $a > /tmp/test-file;
      mv /tmp/test-file $a;
  done

I then searched for __assign_str() that did not end with ';' as those
were multi line assignments that the sed script above would fail to catch.

Note, the same updates will need to be done for:

  __assign_str_len()
  __assign_rel_str()
  __assign_rel_str_len()

I tested this with both an allmodconfig and an allyesconfig (build only for both).

[1] https://lore.kernel.org/linux-trace-kernel/20240222211442.634192653@goodmis.org/

Link: https://lore.kernel.org/linux-trace-kernel/20240516133454.681ba6a0@rorschach.local.home

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Christian König <christian.koenig@amd.com> for the amdgpu parts.
Acked-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> #for
Acked-by: Rafael J. Wysocki <rafael@kernel.org> # for thermal
Acked-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Darrick J. Wong <djwong@kernel.org>	# xfs
Tested-by: Guenter Roeck <linux@roeck-us.net>
 2024-05-22 20:14:47 -04:00
Linus Torvalds
5f16eb0549 Char/Misc and other driver subsystem changes for 6.10-rc1 
Here is the big set of char/misc and other driver subsystem updates for
 6.10-rc1.  Nothing major here, just lots of new drivers and updates for
 apis and new hardware types.  Included in here are:
   - big IIO driver updates with more devices and drivers added
   - fpga driver updates
   - hyper-v driver updates
   - uio_pruss driver removal, no one uses it, other drivers control the
     same hardware now
   - binder minor updates
   - mhi driver updates
   - excon driver updates
   - counter driver updates
   - accessability driver updates
   - coresight driver updates
   - other hwtracing driver updates
   - nvmem driver updates
   - slimbus driver updates
   - spmi driver updates
   - other smaller misc and char driver updates
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver subsystem updates from Greg KH:
 "Here is the big set of char/misc and other driver subsystem updates
  for 6.10-rc1. Nothing major here, just lots of new drivers and updates
  for apis and new hardware types. Included in here are:

   - big IIO driver updates with more devices and drivers added

   - fpga driver updates

   - hyper-v driver updates

   - uio_pruss driver removal, no one uses it, other drivers control the
     same hardware now

   - binder minor updates

   - mhi driver updates

   - excon driver updates

   - counter driver updates

   - accessability driver updates

   - coresight driver updates

   - other hwtracing driver updates

   - nvmem driver updates

   - slimbus driver updates

   - spmi driver updates

   - other smaller misc and char driver updates

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (319 commits)
  misc: ntsync: mark driver as "broken" to prevent from building
  spmi: pmic-arb: Add multi bus support
  spmi: pmic-arb: Register controller for bus instead of arbiter
  spmi: pmic-arb: Make core resources acquiring a version operation
  spmi: pmic-arb: Make the APID init a version operation
  spmi: pmic-arb: Fix some compile warnings about members not being described
  dt-bindings: spmi: Deprecate qcom,bus-id
  dt-bindings: spmi: Add X1E80100 SPMI PMIC ARB schema
  spmi: pmic-arb: Replace three IS_ERR() calls by null pointer checks in spmi_pmic_arb_probe()
  spmi: hisi-spmi-controller: Do not override device identifier
  dt-bindings: spmi: hisilicon,hisi-spmi-controller: clean up example
  dt-bindings: spmi: hisilicon,hisi-spmi-controller: fix binding references
  spmi: make spmi_bus_type const
  extcon: adc-jack: Document missing struct members
  extcon: realtek: Remove unused of_gpio.h
  extcon: usbc-cros-ec: Convert to platform remove callback returning void
  extcon: usb-gpio: Convert to platform remove callback returning void
  extcon: max77843: Convert to platform remove callback returning void
  extcon: max3355: Convert to platform remove callback returning void
  extcon: intel-mrfld: Convert to platform remove callback returning void
  ...
 2024-05-22 12:26:46 -07:00
Linus Torvalds
d90be6e4aa Driver core changes for 6.10-rc1 
Here is the small set of driver core and kernfs changes for 6.10-rc1.
 
 Nothing major here at all, just a small set of changes for some driver
 core apis, and minor fixups.  Included in here are:
   - sysfs_bin_attr_simple_read() helper added and used
   - device_show_string() helper added and used
 All usages of these were acked by the various maintainers.  Also in here
 are:
   - kernfs minor cleanup
   - removed unused functions
   - typo fix in documentation
   - pay attention to sysfs_create_link() failures in module.c finally.
 
 All of these have been in linux-next for a very long time with no
 reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the small set of driver core and kernfs changes for 6.10-rc1.

  Nothing major here at all, just a small set of changes for some driver
  core apis, and minor fixups. Included in here are:

   - sysfs_bin_attr_simple_read() helper added and used

   - device_show_string() helper added and used

  All usages of these were acked by the various maintainers. Also in
  here are:

   - kernfs minor cleanup

   - removed unused functions

   - typo fix in documentation

   - pay attention to sysfs_create_link() failures in module.c finally

  All of these have been in linux-next for a very long time with no
  reported problems"

* tag 'driver-core-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  device property: Fix a typo in the description of device_get_child_node_count()
  kernfs: mount: Remove unnecessary ‘NULL’ values from knparent
  scsi: Use device_show_string() helper for sysfs attributes
  platform/x86: Use device_show_string() helper for sysfs attributes
  perf: Use device_show_string() helper for sysfs attributes
  IB/qib: Use device_show_string() helper for sysfs attributes
  hwmon: Use device_show_string() helper for sysfs attributes
  driver core: Add device_show_string() helper for sysfs attributes
  treewide: Use sysfs_bin_attr_simple_read() helper
  sysfs: Add sysfs_bin_attr_simple_read() helper
  module: don't ignore sysfs_create_link() failures
  driver core: Remove unused platform_notify, platform_notify_remove
 2024-05-22 12:13:40 -07:00
Linus Torvalds
8dde191aab Misc fixes: 
- Fix a sched_balance_newidle setting bug
 
  - Fix bug in the setting of /sys/fs/cgroup/test/cpu.max.burst
 
  - Fix variable-shadowing build warning
 
  - Extend sched-domains debug output
 
  - Fix documentation
 
  - Fix comments
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2024-05-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:

 - Fix a sched_balance_newidle setting bug

 - Fix bug in the setting of /sys/fs/cgroup/test/cpu.max.burst

 - Fix variable-shadowing build warning

 - Extend sched-domains debug output

 - Fix documentation

 - Fix comments

* tag 'sched-urgent-2024-05-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/core: Fix incorrect initialization of the 'burst' parameter in cpu_max_write()
  sched/fair: Remove stale FREQUENCY_UTIL comment
  sched/fair: Fix initial util_avg calculation
  docs: cgroup-v1: Clarify that domain levels are system-specific
  sched/debug: Dump domains' level
  sched/fair: Allow disabling sched_balance_newidle with sched_relax_domain_level
  arch/topology: Fix variable naming to avoid shadowing
 2024-05-19 11:38:15 -07:00
Richard Fitzgerald
7ba822189e
regmap: kunit: Fix array overflow in stride() test 
Force the max_register of the test regmap to be one register longer
than the number of test registers, to prevent an array overflow in
the test loop.

The test defines num_reg_defaults = 6. With 6 registers and
stride == 2 the valid register addresses would be 0, 2, 4, 6, 8, 10.
However the loop checks attempting to access the odd address, so on
the final register it accesses address 11, and it writes entry [11]
of the read/written arrays.

Originally this worked because the max_register of the regmap was
hardcoded to be BLOCK_TEST_SIZE (== 12).

commit 710915743d ("regmap: kunit: Run sparse cache tests at non-zero
register addresses")
introduced the ability to start the test address range from any address,
which means adjusting the max_register. If max_register was not forced,
it was calculated either from num_reg_defaults or BLOCK_TEST_SIZE. This
correctly calculated that with num_reg_defaults == 6 and stride == 2 the
final valid address is 10. So the read/written arrays are allocated to
contain entries [0..10]. When stride attempted to access [11] it was
overflowing the array.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 710915743d ("regmap: kunit: Run sparse cache tests at non-zero register addresses")
Tested-by: Guenter Roeck <linux@roeck-us.net>
Link: https://msgid.link/r/20240517144703.1200995-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-05-17 18:23:12 +01:00
Linus Torvalds
ff2632d7d0 powerpc updates for 6.10 
- Enable BPF Kernel Functions (kfuncs) in the powerpc BPF JIT.
 
  - Allow per-process DEXCR (Dynamic Execution Control Register) settings via
    prctl, notably NPHIE which controls hashst/hashchk for ROP protection.
 
  - Install powerpc selftests in sub-directories. Note this changes the way
    run_kselftest.sh needs to be invoked for powerpc selftests.
 
  - Change fadump (Firmware Assisted Dump) to better handle memory add/remove.
 
  - Add support for passing additional parameters to the fadump kernel.
 
  - Add support for updating the kdump image on CPU/memory add/remove events.
 
  - Other small features, cleanups and fixes.
 
 Thanks to: Andrew Donnellan, Andy Shevchenko, Aneesh Kumar K.V, Arnd Bergmann,
 Benjamin Gray, Bjorn Helgaas, Christian Zigotzky, Christophe Jaillet, Christophe
 Leroy, Colin Ian King, Cédric Le Goater, Dr. David Alan Gilbert, Erhard Furtner,
 Frank Li, GUO Zihua, Ganesh Goudar, Geoff Levand, Ghanshyam Agrawal, Greg Kurz,
 Hari Bathini, Joel Stanley, Justin Stitt, Kunwu Chan, Li Yang, Lidong Zhong,
 Madhavan Srinivasan, Mahesh Salgaonkar, Masahiro Yamada, Matthias Schiffer,
 Naresh Kamboju, Nathan Chancellor, Nathan Lynch, Naveen N Rao, Nicholas
 Miehlbradt, Ran Wang, Randy Dunlap, Ritesh Harjani, Sachin Sant, Shirisha Ganta,
 Shrikanth Hegde, Sourabh Jain, Stephen Rothwell, sundar, Thorsten Blum, Vaibhav
 Jain, Xiaowei Bao, Yang Li, Zhao Chenhui.
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Merge tag 'powerpc-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Enable BPF Kernel Functions (kfuncs) in the powerpc BPF JIT.

 - Allow per-process DEXCR (Dynamic Execution Control Register) settings
   via prctl, notably NPHIE which controls hashst/hashchk for ROP
   protection.

 - Install powerpc selftests in sub-directories. Note this changes the
   way run_kselftest.sh needs to be invoked for powerpc selftests.

 - Change fadump (Firmware Assisted Dump) to better handle memory
   add/remove.

 - Add support for passing additional parameters to the fadump kernel.

 - Add support for updating the kdump image on CPU/memory add/remove
   events.

 - Other small features, cleanups and fixes.

Thanks to Andrew Donnellan, Andy Shevchenko, Aneesh Kumar K.V, Arnd
Bergmann, Benjamin Gray, Bjorn Helgaas, Christian Zigotzky, Christophe
Jaillet, Christophe Leroy, Colin Ian King, Cédric Le Goater, Dr. David
Alan Gilbert, Erhard Furtner, Frank Li, GUO Zihua, Ganesh Goudar, Geoff
Levand, Ghanshyam Agrawal, Greg Kurz, Hari Bathini, Joel Stanley, Justin
Stitt, Kunwu Chan, Li Yang, Lidong Zhong, Madhavan Srinivasan, Mahesh
Salgaonkar, Masahiro Yamada, Matthias Schiffer, Naresh Kamboju, Nathan
Chancellor, Nathan Lynch, Naveen N Rao, Nicholas Miehlbradt, Ran Wang,
Randy Dunlap, Ritesh Harjani, Sachin Sant, Shirisha Ganta, Shrikanth
Hegde, Sourabh Jain, Stephen Rothwell, sundar, Thorsten Blum, Vaibhav
Jain, Xiaowei Bao, Yang Li, and Zhao Chenhui.

* tag 'powerpc-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (85 commits)
  powerpc/fadump: Fix section mismatch warning
  powerpc/85xx: fix compile error without CONFIG_CRASH_DUMP
  powerpc/fadump: update documentation about bootargs_append
  powerpc/fadump: pass additional parameters when fadump is active
  powerpc/fadump: setup additional parameters for dump capture kernel
  powerpc/pseries/fadump: add support for multiple boot memory regions
  selftests/powerpc/dexcr: Fix spelling mistake "predicition" -> "prediction"
  KVM: PPC: Book3S HV nestedv2: Fix an error handling path in gs_msg_ops_kvmhv_nestedv2_config_fill_info()
  KVM: PPC: Fix documentation for ppc mmu caps
  KVM: PPC: code cleanup for kvmppc_book3s_irqprio_deliver
  KVM: PPC: Book3S HV nestedv2: Cancel pending DEC exception
  powerpc/xmon: Check cpu id in commands "c#", "dp#" and "dx#"
  powerpc/code-patching: Use dedicated memory routines for patching
  powerpc/code-patching: Test patch_instructions() during boot
  powerpc64/kasan: Pass virtual addresses to kasan_init_phys_region()
  powerpc: rename SPRN_HID2 define to SPRN_HID2_750FX
  powerpc: Fix typos
  powerpc/eeh: Fix spelling of the word "auxillary" and update comment
  macintosh/ams: Fix unused variable warning
  powerpc/Makefile: Remove bits related to the previous use of -mcmodel=large
  ...
 2024-05-17 09:05:46 -07:00
Linus Torvalds
db5d28c0bf drm for 6.10-rc1 
new drivers:
 - panthor: ARM Mali/Immortalis CSF-based GPU driver
 
 core:
 - add a CONFIG_DRM_WERROR option
 - make more headers self-contained
 - grab resv lock in pin/unpin
 - fix vmap resv locking
 - EDID/eDP panel matching
 - Kconfig cleanups
 - DT sound bindings
 - Add SIZE_HINTS property for cursor planes
 - Add struct drm_edid_product_id and helpers.
 - Use drm device based logging in more drm functions.
 - drop seq_file.h from a bunch of places
 - use drm_edid driver conversions
 
 dp:
 - DP Tunnel documentation
 - MST read sideband cap
 - Adaptive sync SDP prep work
 
 ttm:
 - improve placement for TTM BOs in idle/busy handling
 
 panic:
 - Fixes for drm-panic, and option to test it.
 - Add drm panic to simpledrm, mgag200, imx, ast
 
 bridge:
 - improve init ordering
 - adv7511: allow GPIO pin sharing
 - tc358775: add tc358675 support
 
 panel:
 - AUO B120XAN01.0
 - Samsung s6e3fa7
 - BOE NT116WHM-N44
 - CMN N116BCA-EA1,
 - CrystalClear CMT430B19N00
 - Startek KD050HDFIA020-C020A
 - powertip PH128800T006-ZHC01
 - Innolux G121X1-L03
 - LG sw43408
 - Khadas TS050 V2
 - EDO RM69380 OLED
 - CSOT MNB601LS1-1
 
 amdgpu:
 - HDCP/ODM/RAS fixes
 - Devcoredump improvements
 - Expose VCN activity via sysfs
 - SMY 13.0.x updates
 - Enable fast updates on DCN 3.1.4
 - Add dclk and vclk reporting on additional devices
 - Add ACA RAS infrastructure
 - Implement TLB flush fence
 - EEPROM handling fixes
 - SMUIO 14.0.2 support
 - SMU 14.0.1 Updates
 - SMU 14.0.2 support
 - Sync page table freeing with TLB flushes
 - DML2 refactor
 - DC debug improvements
 - DCN 3.5.x Updates
 - GPU reset fixes
 - HDP fix for second GFX pipe on GC 10.x
 - Enable secondary GFX pipe on GC 10.3
 - Refactor and clean up BACO/BOCO/BAMACO handling
 - Remove invalid TTM resource start check
 - UAF fix in VA IOCTL
 - GPUVM page fault redirection to secondary IH rings for IH 6.x
 - Initial support for mapping kernel queues via MES
 - Fix VRAM memory accounting
 
 amdkfd:
 - MQD handling cleanup
 - Preemption handling fixes for XCDs
 - TLB flush fix for GC 9.4.2
 - Properly clean up workqueue during module unload
 - Fix memory leak process create failure
 - Range check CP bad op exception targets to avoid reporting invalid exceptions to userspace
 - Fix eviction fence handling
 - Fix leak in GPU memory allocation failure case
 - DMABuf import handling fix
 - Enable SQ watchpoint for gfx10
 
 i915:
 - Adding new DG2 PCI ID
 - add context hints for GT frequency
 - enable only one CCS for compute workloads
 - new workarounds
 - Fix UAF on destroy against retire race and remove two earlier partial fixes
 - Limit the reserved VM space to only the platforms that need it
 - Fix gt reset with GuC submission is disable
 - Add and use gt_to_guc() wrapper
 
 i915/xe display:
 - Lunar Lake display enabling, including cdclk and other refactors
 - BIOS/VBT/opregion related refactor
 - Digital port related refactor/clean-up
 - Fix 2s boot time regression on DP panel replay init
 - Remove duplication on audio enable/disable on SDVO and g4x+ DP
 - Disable AuxCCS framebuffers if built for Xe
 - Make crtc disable more atomic
 - Increase DP idle pattern wait timeout to 2ms
 - Start using container_of_const() for some extra const safety
 - Fix Jasper Lake boot freeze
 - Enable MST mode for 128b/132b single-stream sideband
 - Enable Adaptive Sync SDP Support for DP
 - Fix MTL supported DP rates - removal of UHBR13.5
 - PLL refactoring
 - Limit eDP MSO pipe only for display version 20
 - More display refactor towards independence from i915 dev_priv
 - Convert i915/xe fbdev to DRM client
 - More initial work to make display code more independent from i915
 
 xe:
 - improved error capture
 - clean up some uAPI leftovers
 - devcoredump update
 - Add BMG mocs table
 - Handle GSCCS ER interrupt
 - Implement xe2- and GuC workarounds
 - struct xe_device cleanup
 - Hwmon updates
 - Add LRC parsing for more GPU instruction
 - Increase VM_BIND number of per-ioctl Ops
 - drm/xe: Add XE_BO_GGTT_INVALIDATE flag
 - Initial development for SR-IOV support
 - Add new PCI IDs to DG2 platform
 - Move userptr over to start using hmm_range_fault
 
 msm:
 - Switched to generating register header files during build process
   instead of shipping pre-generated headers
 - Merged DPU and MDP4 format databases.
 - DP:
 - Stop using compat string to distinguish DP and eDP cases
 - Added support for X Elite platform (X1E80100)
 - Reworked DP aux/audio support
 - Added SM6350 DP to the bindings
 - GPU:
 - a7xx perfcntr reg fixes
 - MAINTAINERS updates
 - a750 devcoredump support
 
 radeon:
 - Silence UBSAN warnings related to flexible arrays
 
 nouveau:
 - move some uAPI objects to uapi headers
 
 omapdrm:
 - console fix
 
 ast:
 - add i2c polling
 
 qaic:
 - add debugfs entries
 
 exynos:
 - fix platform_driver .owner
 - drop cleanup code
 
 mediatek:
 - Use devm_platform_get_and_ioremap_resource() in mtk_hdmi_ddc_probe()
 - Add GAMMA 12-bit LUT support for MT8188
 - Rename mtk_drm_* to mtk_*
 - Drop driver owner initialization
 - Correct calculation formula of PHY Timing
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Merge tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel

Pull drm updates from Dave Airlie:
 "This is the main pull request for the drm subsystems for 6.10.

  In drivers the main thing is a new driver for ARM Mali firmware based
  GPUs, otherwise there are a lot of changes to amdgpu/xe/i915/msm and
  scattered changes to everything else.

  In the core a bunch of headers and Kconfig was refactored, along with
  the addition of a new panic handler which is meant to provide a user
  friendly message when a panic happens and graphical display is
  enabled.

  New drivers:
   - panthor: ARM Mali/Immortalis CSF-based GPU driver

  Core:
   - add a CONFIG_DRM_WERROR option
   - make more headers self-contained
   - grab resv lock in pin/unpin
   - fix vmap resv locking
   - EDID/eDP panel matching
   - Kconfig cleanups
   - DT sound bindings
   - Add SIZE_HINTS property for cursor planes
   - Add struct drm_edid_product_id and helpers.
   - Use drm device based logging in more drm functions.
   - drop seq_file.h from a bunch of places
   - use drm_edid driver conversions

  dp:
   - DP Tunnel documentation
   - MST read sideband cap
   - Adaptive sync SDP prep work

  ttm:
   - improve placement for TTM BOs in idle/busy handling

  panic:
   - Fixes for drm-panic, and option to test it.
   - Add drm panic to simpledrm, mgag200, imx, ast

  bridge:
   - improve init ordering
   - adv7511: allow GPIO pin sharing
   - tc358775: add tc358675 support

  panel:
   - AUO B120XAN01.0
   - Samsung s6e3fa7
   - BOE NT116WHM-N44
   - CMN N116BCA-EA1,
   - CrystalClear CMT430B19N00
   - Startek KD050HDFIA020-C020A
   - powertip PH128800T006-ZHC01
   - Innolux G121X1-L03
   - LG sw43408
   - Khadas TS050 V2
   - EDO RM69380 OLED
   - CSOT MNB601LS1-1

  amdgpu:
   - HDCP/ODM/RAS fixes
   - Devcoredump improvements
   - Expose VCN activity via sysfs
   - SMY 13.0.x updates
   - Enable fast updates on DCN 3.1.4
   - Add dclk and vclk reporting on additional devices
   - Add ACA RAS infrastructure
   - Implement TLB flush fence
   - EEPROM handling fixes
   - SMUIO 14.0.2 support
   - SMU 14.0.1 Updates
   - SMU 14.0.2 support
   - Sync page table freeing with TLB flushes
   - DML2 refactor
   - DC debug improvements
   - DCN 3.5.x Updates
   - GPU reset fixes
   - HDP fix for second GFX pipe on GC 10.x
   - Enable secondary GFX pipe on GC 10.3
   - Refactor and clean up BACO/BOCO/BAMACO handling
   - Remove invalid TTM resource start check
   - UAF fix in VA IOCTL
   - GPUVM page fault redirection to secondary IH rings for IH 6.x
   - Initial support for mapping kernel queues via MES
   - Fix VRAM memory accounting

  amdkfd:
   - MQD handling cleanup
   - Preemption handling fixes for XCDs
   - TLB flush fix for GC 9.4.2
   - Properly clean up workqueue during module unload
   - Fix memory leak process create failure
   - Range check CP bad op exception targets to avoid reporting invalid exceptions to userspace
   - Fix eviction fence handling
   - Fix leak in GPU memory allocation failure case
   - DMABuf import handling fix
   - Enable SQ watchpoint for gfx10

  i915:
   - Adding new DG2 PCI ID
   - add context hints for GT frequency
   - enable only one CCS for compute workloads
   - new workarounds
   - Fix UAF on destroy against retire race and remove two earlier partial fixes
   - Limit the reserved VM space to only the platforms that need it
   - Fix gt reset with GuC submission is disable
   - Add and use gt_to_guc() wrapper

  i915/xe display:
   - Lunar Lake display enabling, including cdclk and other refactors
   - BIOS/VBT/opregion related refactor
   - Digital port related refactor/clean-up
   - Fix 2s boot time regression on DP panel replay init
   - Remove duplication on audio enable/disable on SDVO and g4x+ DP
   - Disable AuxCCS framebuffers if built for Xe
   - Make crtc disable more atomic
   - Increase DP idle pattern wait timeout to 2ms
   - Start using container_of_const() for some extra const safety
   - Fix Jasper Lake boot freeze
   - Enable MST mode for 128b/132b single-stream sideband
   - Enable Adaptive Sync SDP Support for DP
   - Fix MTL supported DP rates - removal of UHBR13.5
   - PLL refactoring
   - Limit eDP MSO pipe only for display version 20
   - More display refactor towards independence from i915 dev_priv
   - Convert i915/xe fbdev to DRM client
   - More initial work to make display code more independent from i915

  xe:
   - improved error capture
   - clean up some uAPI leftovers
   - devcoredump update
   - Add BMG mocs table
   - Handle GSCCS ER interrupt
   - Implement xe2- and GuC workarounds
   - struct xe_device cleanup
   - Hwmon updates
   - Add LRC parsing for more GPU instruction
   - Increase VM_BIND number of per-ioctl Ops
   - drm/xe: Add XE_BO_GGTT_INVALIDATE flag
   - Initial development for SR-IOV support
   - Add new PCI IDs to DG2 platform
   - Move userptr over to start using hmm_range_fault

  msm:
   - Switched to generating register header files during build process
     instead of shipping pre-generated headers
   - Merged DPU and MDP4 format databases.
   - DP:
     - Stop using compat string to distinguish DP and eDP cases
     - Added support for X Elite platform (X1E80100)
     - Reworked DP aux/audio support
     - Added SM6350 DP to the bindings
   - GPU:
     - a7xx perfcntr reg fixes
     - MAINTAINERS updates
     - a750 devcoredump support

  radeon:
   - Silence UBSAN warnings related to flexible arrays

  nouveau:
   - move some uAPI objects to uapi headers

  omapdrm:
   - console fix

  ast:
   - add i2c polling

  qaic:
   - add debugfs entries

  exynos:
   - fix platform_driver .owner
   - drop cleanup code

  mediatek:
   - Use devm_platform_get_and_ioremap_resource() in mtk_hdmi_ddc_probe()
   - Add GAMMA 12-bit LUT support for MT8188
   - Rename mtk_drm_* to mtk_*
   - Drop driver owner initialization
   - Correct calculation formula of PHY Timing"

* tag 'drm-next-2024-05-15' of https://gitlab.freedesktop.org/drm/kernel: (1477 commits)
  drm/xe/ads: Use flexible-array
  drm/xe: Use ordered WQ for G2H handler
  drm/msm/gen_header: allow skipping the validation
  drm/msm/a6xx: Cleanup indexed regs const'ness
  drm/msm: Add devcoredump support for a750
  drm/msm: Adjust a7xx GBIF debugbus dumping
  drm/msm: Update a6xx registers XML
  drm/msm: Fix imported a750 snapshot header for upstream
  drm/msm: Import a750 snapshot registers from kgsl
  MAINTAINERS: Add Konrad Dybcio as a reviewer for the Adreno driver
  MAINTAINERS: Add a separate entry for Qualcomm Adreno GPU drivers
  drm/msm/a6xx: Avoid a nullptr dereference when speedbin setting fails
  drm/msm/adreno: fix CP cycles stat retrieval on a7xx
  drm/msm/a7xx: allow writing to CP_BV counter selection registers
  drm: zynqmp_dpsub: Always register bridge
  Revert "drm/bridge: ti-sn65dsi83: Fix enable error path"
  drm/fb_dma: Add checks in drm_fb_dma_get_scanout_buffer()
  drm/fbdev-generic: Do not set physical framebuffer address
  drm/panthor: Fix the FW reset logic
  drm/panthor: Make sure we handle 'unknown group state' case properly
  ...
 2024-05-15 09:43:42 -07:00
Vincent Guittot
e5bc44e47c arch/topology: Fix variable naming to avoid shadowing 
Using 'hw_pressure' for local variable name is confusing in regard to the
per-CPU 'hw_pressure' variable that uses the same name:

  include/linux/arch_topology.h:DECLARE_PER_CPU(unsigned long, hw_pressure);

... which puts it into a global scope for all code that includes
<linux/topology.h>, shadowing the local variable.

Rename it to avoid compiler confusion & Sparse warnings.

[ mingo: Expanded the changelog. ]

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20240425073709.379016-1-vincent.guittot@linaro.org
Closes: https://lore.kernel.org/oe-kbuild-all/202404250740.VhQQoD7N-lkp@intel.com/
Fixes: d4dbc99171 ("sched/cpufreq: Rename arch_update_thermal_pressure() => arch_update_hw_pressure()")
Tested-by: Konrad Dybcio <konrad.dybcio@linaro.org> # QC SM8550 QRD
 2024-05-15 10:22:16 +02:00
Linus Torvalds
fffe418b2f regmap: Updates for v6.10 
Other than a few cleanups the changes here are all in the KUnit tests,
 Richard Fitzgerald sent some bug fixes during the v6.9 cycle and while
 adding test coverage for the issues fixed did some fairly substantial
 improvements, both cleaning up the framework and building out the
 coverage.
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Merge tag 'regmap-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "Other than a few cleanups the changes here are all in the KUnit tests,
  Richard Fitzgerald sent some bug fixes during the v6.9 cycle and while
  adding test coverage for the issues fixed did some fairly substantial
  improvements, both cleaning up the framework and building out the
  coverage"

* tag 'regmap-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: Reorder fields in 'struct regmap_config' to save some memory
  regmap: kunit: Fix an NULL vs IS_ERR() check
  regmap: spi: Add missing MODULE_DESCRIPTION()
  regmap: Drop capitalisation in MODULE_DESCRIPTION()
  regmap: kunit: Add test cases for regmap_read_bypassed()
  regmap: kunit: Add cache-drop test with multiple cache blocks
  regmap: kunit: Replace a kmalloc/kfree() pair with KUnit-managed alloc
  regmap: kunit: Use a KUnit action to call regmap_exit()
  regmap: kunit: Add more cache-sync tests
  regmap: kunit: Add more cache-drop tests
  regmap: kunit: Run non-sparse cache tests at non-zero register addresses
  regmap: kunit: Run sparse cache tests at non-zero register addresses
  regmap: kunit: Introduce struct for test case parameters
  regmap: kunit: Create a struct device for the regmap
  regmap: kunit: Fix warnings of implicit casts to __le16 and __be16
  regmap: maple: Remove second semicolon
 2024-05-14 14:30:24 -07:00
Linus Torvalds
0c181b1d97 Power management updates for 6.10-rc1 
- Rework the handling of disabled turbo in the intel_pstate driver and
    make it update the maximum CPU frequency consistently regardless of
    the reason on top of a number of cleanups (Rafael Wysocki).
 
  - Add missing checks for NULL .exit() cpufreq driver callback to the
    cpufreq core (Viresh Kumar).
 
  - Prevent pulicy->max from going above the frequency QoS maximum value
    when cpufreq_frequency_table_verify() is used (Xuewen Yan).
 
  - Prevent a negative CPU number or frequency value from being printed
    if they are really large (Joshua Yeong).
 
  - Update MAINTAINERS entry for amd-pstate to add two new submaintainers
    and a designated reviewer (Huang Rui).
 
  - Clean up the amd-pstate driver and update its documentation (Gautham
    Shenoy).
 
  - Fix the highest frequency issue in the amd-pstate driver which limits
    performance (Perry Yuan).
 
  - Enable CPPC v2 for certain processors in the family 17H, as requested
    by TR40 processor users who expect improved performance and lower
    system temperature (Perry Yuan).
 
  - Change latency and delay values to be read from platform firmware
    firstly for more accurate timing (Perry Yuan).
 
  - A new quirk is introduced for supporting amd-pstate on legacy
    processors which either lack CPPC capability, or only only have CPPC
    v2 capability (Perry Yuan).
 
  - Sun50i cpufreq: Add support for opp_supported_hw, H616 platform and
    general cleanups (Andre Przywara, Martin Botka, Brandon Cheo Fusi,
    Dan Carpenter, Viresh Kumar).
 
  - CPPC cpufreq: Fix possible null pointer dereference (Aleksandr
    Mishin).
 
  - Eliminate uses of of_node_put() from cpufreq (Javier Carrasco,
    Shivani Gupta).
 
  - brcmstb-avs: ISO C90 forbids mixed declarations (Portia Stephens).
 
  - mediatek cpufreq: Add support for MT7988A (Sam Shih).
 
  - cpufreq-qcom-hw: Add SM4450 compatibles in DT bindings (Tengfei Fan).
 
  - Fix struct cpudata::epp_cached kernel-doc in the intel_pstate cpufreq
    driver (Jeff Johnson).
 
  - Fix kerneldoc description of ladder_do_selection() (Jeff Johnson).
 
  - Convert the cpuidle kirkwood driver to platform remove callback
    returning void (Yangtao Li).
 
  - Replace deprecated strncpy() with strscpy() in the hibernation core
    code (Justin Stitt).
 
  - Use %ps to simplify debug output in the core system-wide suspend and
    resume code (Len Brown).
 
  - Remove unnecessary else from device_init_wakeup() and make
    device_wakeup_disable() return void (Dhruva Gole).
 
  - Enable PMU support in the Intel TPMI RAPL driver (Zhang Rui).
 
  - Add support for ArrowLake-H platform to the Intel RAPL driver (Zhang
    Rui).
 
  - Avoid explicit cpumask allocation on stack in DTPM (Dawei Li).
 
  - Make the Samsung exynos-asv driver update the Energy Model after
    adjusting voltage on top of some preliminary changes of the OPP and
    Enery Model generic code (Lukasz Luba).
 
  - Remove a reference to a function that has been dropped from the power
    management documentation (Bjorn Helgaas).
 
  - Convert the platfrom remove callback to .remove_new for the
    exyno-nocp, exynos-ppmu, mtk-cci-devfreq, sun8i-a33-mbus, and
    rk3399_dmc devfreq drivers (Uwe Kleine-König).
 
  - Use DEFINE_SIMPLE_PM_OPS for exyno-bus.c driver (Anand Moon).
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Merge tag 'pm-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These are mostly cpufreq updates, including a significant intel-pstate
  driver update and several amd-pstate improvements plus some updates of
  ARM cpufreq drivers, general fixes and cleanups.

  Also included are changes related to system sleep, power capping
  updates adding support for a new platform and a new hardware feature
  (among other things), a Samsung exynos-asv driver update allowing it
  to change its Energy Model after adjusting voltage, minor cpuidle and
  devfreq updates and a small documentation cleanup.

  Specifics:

   - Rework the handling of disabled turbo in the intel_pstate driver
     and make it update the maximum CPU frequency consistently
     regardless of the reason on top of a number of cleanups (Rafael
     Wysocki)

   - Add missing checks for NULL .exit() cpufreq driver callback to the
     cpufreq core (Viresh Kumar)

   - Prevent pulicy->max from going above the frequency QoS maximum
     value when cpufreq_frequency_table_verify() is used (Xuewen Yan)

   - Prevent a negative CPU number or frequency value from being printed
     if they are really large (Joshua Yeong)

   - Update MAINTAINERS entry for amd-pstate to add two new
     submaintainers and a designated reviewer (Huang Rui)

   - Clean up the amd-pstate driver and update its documentation
     (Gautham Shenoy)

   - Fix the highest frequency issue in the amd-pstate driver which
     limits performance (Perry Yuan)

   - Enable CPPC v2 for certain processors in the family 17H, as
     requested by TR40 processor users who expect improved performance
     and lower system temperature (Perry Yuan)

   - Change latency and delay values to be read from platform firmware
     firstly for more accurate timing (Perry Yuan)

   - A new quirk is introduced for supporting amd-pstate on legacy
     processors which either lack CPPC capability, or only only have
     CPPC v2 capability (Perry Yuan)

   - Sun50i cpufreq: Add support for opp_supported_hw, H616 platform and
     general cleanups (Andre Przywara, Martin Botka, Brandon Cheo Fusi,
     Dan Carpenter, Viresh Kumar)

   - CPPC cpufreq: Fix possible null pointer dereference (Aleksandr
     Mishin)

   - Eliminate uses of of_node_put() from cpufreq (Javier Carrasco,
     Shivani Gupta)

   - brcmstb-avs: ISO C90 forbids mixed declarations (Portia Stephens)

   - mediatek cpufreq: Add support for MT7988A (Sam Shih)

   - cpufreq-qcom-hw: Add SM4450 compatibles in DT bindings (Tengfei
     Fan)

   - Fix struct cpudata::epp_cached kernel-doc in the intel_pstate
     cpufreq driver (Jeff Johnson)

   - Fix kerneldoc description of ladder_do_selection() (Jeff Johnson)

   - Convert the cpuidle kirkwood driver to platform remove callback
     returning void (Yangtao Li)

   - Replace deprecated strncpy() with strscpy() in the hibernation core
     code (Justin Stitt)

   - Use %ps to simplify debug output in the core system-wide suspend
     and resume code (Len Brown)

   - Remove unnecessary else from device_init_wakeup() and make
     device_wakeup_disable() return void (Dhruva Gole)

   - Enable PMU support in the Intel TPMI RAPL driver (Zhang Rui)

   - Add support for ArrowLake-H platform to the Intel RAPL driver
     (Zhang Rui)

   - Avoid explicit cpumask allocation on stack in DTPM (Dawei Li)

   - Make the Samsung exynos-asv driver update the Energy Model after
     adjusting voltage on top of some preliminary changes of the OPP and
     Enery Model generic code (Lukasz Luba)

   - Remove a reference to a function that has been dropped from the
     power management documentation (Bjorn Helgaas)

   - Convert the platfrom remove callback to .remove_new for the
     exyno-nocp, exynos-ppmu, mtk-cci-devfreq, sun8i-a33-mbus, and
     rk3399_dmc devfreq drivers (Uwe Kleine-König)

   - Use DEFINE_SIMPLE_PM_OPS for exyno-bus.c driver (Anand Moon)"

* tag 'pm-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (68 commits)
  PM / devfreq: exynos: Use DEFINE_SIMPLE_DEV_PM_OPS for PM functions
  PM / devfreq: rk3399_dmc: Convert to platform remove callback returning void
  PM / devfreq: sun8i-a33-mbus: Convert to platform remove callback returning void
  PM / devfreq: mtk-cci: Convert to platform remove callback returning void
  PM / devfreq: exynos-ppmu: Convert to platform remove callback returning void
  PM / devfreq: exynos-nocp: Convert to platform remove callback returning void
  cpufreq: amd-pstate: fix the highest frequency issue which limits performance
  cpufreq: intel_pstate: fix struct cpudata::epp_cached kernel-doc
  cpuidle: ladder: fix ladder_do_selection() kernel-doc
  powercap: intel_rapl_tpmi: Enable PMU support
  powercap: intel_rapl: Introduce APIs for PMU support
  PM: hibernate: replace deprecated strncpy() with strscpy()
  cpufreq: Fix up printing large CPU numbers and frequency values
  MAINTAINERS: cpufreq: amd-pstate: Add co-maintainers and reviewer
  cpufreq: amd-pstate: remove unused variable lowest_nonlinear_freq
  cpufreq: amd-pstate: fix code format problems
  cpufreq: amd-pstate: Add quirk for the pstate CPPC capabilities missing
  cppc_acpi: print error message if CPPC is unsupported
  cpufreq: amd-pstate: get transition delay and latency value from ACPI tables
  cpufreq: amd-pstate: Bail out if min/max/nominal_freq is 0
  ...
 2024-05-14 13:19:15 -07:00
Linus Torvalds
6e5a0c30b6 Scheduler changes for v6.10: 
- Add cpufreq pressure feedback for the scheduler
 
  - Rework misfit load-balancing wrt. affinity restrictions
 
  - Clean up and simplify the code around ::overutilized and
    ::overload access.
 
  - Simplify sched_balance_newidle()
 
  - Bump SCHEDSTAT_VERSION to 16 due to a cleanup of CPU_MAX_IDLE_TYPES
    handling that changed the output.
 
  - Rework & clean up <asm/vtime.h> interactions wrt. arch_vtime_task_switch()
 
  - Reorganize, clean up and unify most of the higher level
    scheduler balancing function names around the sched_balance_*()
    prefix.
 
  - Simplify the balancing flag code (sched_balance_running)
 
  - Miscellaneous cleanups & fixes
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2024-05-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:

 - Add cpufreq pressure feedback for the scheduler

 - Rework misfit load-balancing wrt affinity restrictions

 - Clean up and simplify the code around ::overutilized and
   ::overload access.

 - Simplify sched_balance_newidle()

 - Bump SCHEDSTAT_VERSION to 16 due to a cleanup of CPU_MAX_IDLE_TYPES
   handling that changed the output.

 - Rework & clean up <asm/vtime.h> interactions wrt arch_vtime_task_switch()

 - Reorganize, clean up and unify most of the higher level
   scheduler balancing function names around the sched_balance_*()
   prefix

 - Simplify the balancing flag code (sched_balance_running)

 - Miscellaneous cleanups & fixes

* tag 'sched-core-2024-05-13' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (50 commits)
  sched/pelt: Remove shift of thermal clock
  sched/cpufreq: Rename arch_update_thermal_pressure() => arch_update_hw_pressure()
  thermal/cpufreq: Remove arch_update_thermal_pressure()
  sched/cpufreq: Take cpufreq feedback into account
  cpufreq: Add a cpufreq pressure feedback for the scheduler
  sched/fair: Fix update of rd->sg_overutilized
  sched/vtime: Do not include <asm/vtime.h> header
  s390/irq,nmi: Include <asm/vtime.h> header directly
  s390/vtime: Remove unused __ARCH_HAS_VTIME_TASK_SWITCH leftover
  sched/vtime: Get rid of generic vtime_task_switch() implementation
  sched/vtime: Remove confusing arch_vtime_task_switch() declaration
  sched/balancing: Simplify the sg_status bitmask and use separate ->overloaded and ->overutilized flags
  sched/fair: Rename set_rd_overutilized_status() to set_rd_overutilized()
  sched/fair: Rename SG_OVERLOAD to SG_OVERLOADED
  sched/fair: Rename {set|get}_rd_overload() to {set|get}_rd_overloaded()
  sched/fair: Rename root_domain::overload to ::overloaded
  sched/fair: Use helper functions to access root_domain::overload
  sched/fair: Check root_domain::overload value before update
  sched/fair: Combine EAS check with root_domain::overutilized access
  sched/fair: Simplify the continue_balancing logic in sched_balance_newidle()
  ...
 2024-05-13 17:18:51 -07:00
Rafael J. Wysocki
440f9d47df Merge branches 'pm-cpuidle', 'pm-sleep' and 'pm-powercap' 
Merge cpuidle updates, changes related to system sleep and power capping
updates for 6.10:

 - Fix kerneldoc description of ladder_do_selection() (Jeff Johnson).

 - Convert the cpuidle kirkwood driver to platform remove callback
   returning void (Yangtao Li).

 - Replace deprecated strncpy() with strscpy() in the hibernation core
   code (Justin Stitt).

 - Use %ps to simplify debug output in the core system-wide suspend and
   resume code (Len Brown).

 - Remove unnecessary else from device_init_wakeup() and make
   device_wakeup_disable() return void (Dhruva Gole).

 - Enable PMU support in the Intel TPMI RAPL driver (Zhang Rui).

 - Add support for ArrowLake-H platform to the Intel RAPL driver (Zhang
   Rui).

 - Avoid explicit cpumask allocation on stack in DTPM (Dawei Li).

* pm-cpuidle:
  cpuidle: ladder: fix ladder_do_selection() kernel-doc
  cpuidle: kirkwood: Convert to platform remove callback returning void

* pm-sleep:
  PM: hibernate: replace deprecated strncpy() with strscpy()
  PM: sleep: Take advantage of %ps to simplify debug output
  PM: wakeup: Remove unnecessary else from device_init_wakeup()
  PM: wakeup: make device_wakeup_disable() return void

* pm-powercap:
  powercap: intel_rapl_tpmi: Enable PMU support
  powercap: intel_rapl: Introduce APIs for PMU support
  powercap: intel_rapl: Sort header files
  powercap: intel_rapl: Add support for ArrowLake-H platform
  powercap: DTPM: Avoid explicit cpumask allocation on stack
 2024-05-13 20:14:10 +02:00
Greg Kroah-Hartman
ed63ba15d7 Linux 6.9-rc7 
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Merge 6.9-rc7 into char-misc-testing

We need the char-misc changes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-05-08 19:21:51 +01:00
Christophe JAILLET
880a746fa3 device property: Fix a typo in the description of device_get_child_node_count() 
s/cound/count/

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/369e7f6898c4a442d45aa15d7d969131d61e9cee.1714323747.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-05-05 08:34:06 +02:00
Lukas Wunner
3cc50d07be driver core: Add device_show_string() helper for sysfs attributes 
For drivers wishing to expose an unsigned long, int or bool at a static
memory location in sysfs, the driver core provides ready-made helpers
such as device_show_ulong() to be used as ->show() callback.

Some drivers need to expose a string and so far they all provide their
own ->show() implementation.  arch/powerpc/perf/hv-24x7.c went so far
as to create a device_show_string() helper but kept it private.

Make it public for reuse by other drivers.  The pattern seems to be
sufficiently frequent to merit a public helper.

Add a DEVICE_STRING_ATTR_RO() macro in line with the existing
DEVICE_ULONG_ATTR() and similar macros to ease declaration of string
attributes.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/2e3eaaf2600bb55c0415c23ba301e809403a7aa2.1713608122.git.lukas@wunner.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-05-04 17:37:03 +02:00
Vincent Guittot
d4dbc99171 sched/cpufreq: Rename arch_update_thermal_pressure() => arch_update_hw_pressure() 
Now that cpufreq provides a pressure value to the scheduler, rename
arch_update_thermal_pressure into HW pressure to reflect that it returns
a pressure applied by HW (i.e. with a high frequency change) and not
always related to thermal mitigation but also generated by max current
limitation as an example. Such high frequency signal needs filtering to be
smoothed and provide an value that reflects the average available capacity
into the scheduler time scale.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Lukasz Luba <lukasz.luba@arm.com>
Reviewed-by: Qais Yousef <qyousef@layalina.io>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://lore.kernel.org/r/20240326091616.3696851-5-vincent.guittot@linaro.org
 2024-04-24 12:08:01 +02:00
Greg Kroah-Hartman
7732ce06ed IIO: 1st set of new device support, features and cleanup for 6.10 
The Analog Device team (Paul Cercueil and Nuno Sa) have been working on
 improving high speed device handling. They have had some support in their
 own tree for many years, so it is great to see them bring it to upstream.
 Some of that is seen here, with the first output device using the
 IIO dmaengine infrastructure and a new DAC backend FPGA IP driver.
 This makes use of a new set of interfaces to allow backend and
 front end driver communication in a fashion that in theory at least
 allows for a single driver for a given ADC / DAC independent of
 the IP to which is being used to deal with the data bus and DMA aspects
 of working with these devices. It is early days for this new
 generic way of handling split devices, but as it's kernel internals only
 we can merrily change anything about it as a wider diversity of devices
 show up and we get a better feel for what works.
 
 Alongside the usual set of new drivers and features we have
 the automatic cleanup of fwnode_handle_put() which didn't quite make
 it in last cycle. The equivalent DT version was merged by Rob Herring
 via the DT binding tree and one patch using that in IIO can also be
 found in this pull request. Rob has been making extensive use of that
 infrastructure in the DT core which is good to see and provides more
 evidence this basic approach is useful.
 
 In some cases, the IIO driver was converted over from DT only to
 using the generic firmware description handling of property.h
 including using the new macros. The general preference for IIO
 is to use this more generic handling where possible - a bunch of other
 drivers have been converted this cycle as well.
 
 New device support
 ==================
 
 adi,ad7173
 - New driver supporting AD7172-2, AD7172-4 AD7173-9, AD7175-2, AD7175-8,
   AD7176-2 and AD7177-2 ADCs.
 - Follow up fix for an accidental use of logic not instead of bitwise.
 
 adi,ad7944
 - New driver supporting AD7944, AD7985 and AD7986 pin compatible ADCs.
 - Later patch added use of new spi_optimize_message() to reduce overheads
   of setting up a reused message.
 - Additional changes later in series reduced code duplication.
 
 adi,ad9739a RF DAC
 - New driver for this 14-bit 2.5 GSPS DAC via an LVDS interface.
 
 adi,axi-dac
 - Support for this FPGA IP used to send data to high performance DACs over
   an interface such as JESD204B/C or parallel interfaces.  Used in
   conjunction with a DAC driver. The initial user is the ad9739a.
   The dmaengine-buffer needed various changes to make it bidirectional.
 
 avago,apds9306
 - New driver for this ambient light sensor.
 - Fix much later in this pull for an off by 1 error.
 
 New device IDs
 ==============
 
 For these at most an ID and a instance of chip specific data was needed.
 Always nice to see manufacturers sticking to an existing software interface
 for new parts.
 
 allwinner,sun20i
 - Add support for h616.
 invensense,mpu6050
 - Add support for ICM42688
 maxim,max30102
 - Add compatible for MAX30101
 ti,dac5571
 - Add compatible for DAC081C081
 
 General
 =======
 
 fwnode_handle
 - Support for cleanup.h based __free(fwnode_handle)
 - Loop macro using this for looping over child nodes without needing to
   call fwnode_handle_put() in ever early exit from the loop.
 - Used in:
   * adi,ad3552r
   * adi,ad4130
   * adi,ad5770r
   * adi,ad74413r
   * adi,ad7173
   * adi,adfm2000
   * linear,ltc2688
   * linear,ltc2983
   * maxim,max11410
   * microchip,pac1934
   * qcom,spmi-adc
   * renesas,rz2gl
   * st,ab8500
   * st,stm32 (Fix for failure to set return value precedes this patch,
     providing an example of why enabling direct returns makes bugs
     less likely)
 - Conversions to fwnode also using the cleanup logic
   * adi,ad7124
   * adi,ad7292
   * freescale,fsl-imx25-gcq
 
 - Other conversions to fwnode where the new cleanup handling isn't useful
   * adi,ad7192
   * avia,hx711
   * freescale,mma8452
   * nxp,fxls8962af
   * st,spear
   * ti,twl4030
 
 Features
 ========
 
 adi,adxl345
 - Support SPI_3WIRE mode.
 
 adi,ad9944
 - Support 3-wire mode, note this isn't normal 3-wire SPI (unlike the
   adxl345 change above), but rather   a wiring scheme where the SPI
   chip select is used to trigger conversions rather than using a
   separate pin.
 - Add some device specific documentation, mostly around the various wiring
   schemes.
 
 invensense,mpu6050
 - Add Wake on Motion support as an IIO event and as a wake-up source.
 
 linear,ltc2983
 - Add vdd-supply.
 
 ti,hdc3020
 - Add power management using trigger on demand mode and adding suspend and
   resume handling.
 - Use reset GPIO if available.
 
 Cleanup and fixes
 ================
 
 iio core
 - Use the various autocleanup and lock guards from cleanup.h to simplify
   the IIO core.
 - Don't set the pointer used for iio_priv() if it is zero sized as that
   points beyond the end of the allocation. No driver actually uses it
   in that case but good to clean this up.
 
 various drivers
 - Drop unnecessary casts of other pointer types to void *
 
 docs
 - Add missing ABI entry for in_temp_input.
 
 adi,adx345
 - General cleanup prior to adding spi-3wire mode.
 
 adi,axi-adc
 - Be more flexible and allow minor version changes as these are expected
   to be backwards compatible.
 
 avago,apds9300/9600
 - Merge near identical bindings. The drivers are quite different, but
   the bindings can be shared. The apds9306 binding introduced in this
   series uses this shared binding doc as well.
 - Add missing vdd-supply
 - Update binding to use IRQ_TYPE_LEVEL_LOW instead of 8.
 
 bosch,bmp280
 - Organize headers
 
 freescale,fxl-imx25-gcq
 - Use devm_ for remaining probe() time setup allowing dropping
   of specific error handling and remove() functions.
 
 infineon,dps310
 - Fix handling of negative temperatures
 - Bring style of other similar calls inline with the form needed
   for temperatures
 - Ensure error handling of regmap calls is consistent within the driver.
 - Simplify scale reading logic.
 
 invensense,mpu6050
 - Flip logic in binding to exclude devices without i2c-gate instead
   of opting in.  The list is expected to be much shorter as all recent
   devices support this feature.
 
 honeywell,hsc030pa
 - Use spi_read() instead of opening coding.
 
 renesas,rcar
 - Use device_for_each_child_of_node_scoped() to remove need to manually
   release. Left over from series the rest of which went in during 6.9.
 
 st,ab8500
 - Fix naming of function parameters in kernel-doc
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Merge tag 'iio-for-6.10a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

IIO: 1st set of new device support, features and cleanup for 6.10

The Analog Device team (Paul Cercueil and Nuno Sa) have been working on
improving high speed device handling. They have had some support in their
own tree for many years, so it is great to see them bring it to upstream.
Some of that is seen here, with the first output device using the
IIO dmaengine infrastructure and a new DAC backend FPGA IP driver.
This makes use of a new set of interfaces to allow backend and
front end driver communication in a fashion that in theory at least
allows for a single driver for a given ADC / DAC independent of
the IP to which is being used to deal with the data bus and DMA aspects
of working with these devices. It is early days for this new
generic way of handling split devices, but as it's kernel internals only
we can merrily change anything about it as a wider diversity of devices
show up and we get a better feel for what works.

Alongside the usual set of new drivers and features we have
the automatic cleanup of fwnode_handle_put() which didn't quite make
it in last cycle. The equivalent DT version was merged by Rob Herring
via the DT binding tree and one patch using that in IIO can also be
found in this pull request. Rob has been making extensive use of that
infrastructure in the DT core which is good to see and provides more
evidence this basic approach is useful.

In some cases, the IIO driver was converted over from DT only to
using the generic firmware description handling of property.h
including using the new macros. The general preference for IIO
is to use this more generic handling where possible - a bunch of other
drivers have been converted this cycle as well.

New device support
==================

adi,ad7173
- New driver supporting AD7172-2, AD7172-4 AD7173-9, AD7175-2, AD7175-8,
  AD7176-2 and AD7177-2 ADCs.
- Follow up fix for an accidental use of logic not instead of bitwise.

adi,ad7944
- New driver supporting AD7944, AD7985 and AD7986 pin compatible ADCs.
- Later patch added use of new spi_optimize_message() to reduce overheads
  of setting up a reused message.
- Additional changes later in series reduced code duplication.

adi,ad9739a RF DAC
- New driver for this 14-bit 2.5 GSPS DAC via an LVDS interface.

adi,axi-dac
- Support for this FPGA IP used to send data to high performance DACs over
  an interface such as JESD204B/C or parallel interfaces.  Used in
  conjunction with a DAC driver. The initial user is the ad9739a.
  The dmaengine-buffer needed various changes to make it bidirectional.

avago,apds9306
- New driver for this ambient light sensor.
- Fix much later in this pull for an off by 1 error.

New device IDs
==============

For these at most an ID and a instance of chip specific data was needed.
Always nice to see manufacturers sticking to an existing software interface
for new parts.

allwinner,sun20i
- Add support for h616.
invensense,mpu6050
- Add support for ICM42688
maxim,max30102
- Add compatible for MAX30101
ti,dac5571
- Add compatible for DAC081C081

General
=======

fwnode_handle
- Support for cleanup.h based __free(fwnode_handle)
- Loop macro using this for looping over child nodes without needing to
  call fwnode_handle_put() in ever early exit from the loop.
- Used in:
  * adi,ad3552r
  * adi,ad4130
  * adi,ad5770r
  * adi,ad74413r
  * adi,ad7173
  * adi,adfm2000
  * linear,ltc2688
  * linear,ltc2983
  * maxim,max11410
  * microchip,pac1934
  * qcom,spmi-adc
  * renesas,rz2gl
  * st,ab8500
  * st,stm32 (Fix for failure to set return value precedes this patch,
    providing an example of why enabling direct returns makes bugs
    less likely)
- Conversions to fwnode also using the cleanup logic
  * adi,ad7124
  * adi,ad7292
  * freescale,fsl-imx25-gcq

- Other conversions to fwnode where the new cleanup handling isn't useful
  * adi,ad7192
  * avia,hx711
  * freescale,mma8452
  * nxp,fxls8962af
  * st,spear
  * ti,twl4030

Features
========

adi,adxl345
- Support SPI_3WIRE mode.

adi,ad9944
- Support 3-wire mode, note this isn't normal 3-wire SPI (unlike the
  adxl345 change above), but rather   a wiring scheme where the SPI
  chip select is used to trigger conversions rather than using a
  separate pin.
- Add some device specific documentation, mostly around the various wiring
  schemes.

invensense,mpu6050
- Add Wake on Motion support as an IIO event and as a wake-up source.

linear,ltc2983
- Add vdd-supply.

ti,hdc3020
- Add power management using trigger on demand mode and adding suspend and
  resume handling.
- Use reset GPIO if available.

Cleanup and fixes
================

iio core
- Use the various autocleanup and lock guards from cleanup.h to simplify
  the IIO core.
- Don't set the pointer used for iio_priv() if it is zero sized as that
  points beyond the end of the allocation. No driver actually uses it
  in that case but good to clean this up.

various drivers
- Drop unnecessary casts of other pointer types to void *

docs
- Add missing ABI entry for in_temp_input.

adi,adx345
- General cleanup prior to adding spi-3wire mode.

adi,axi-adc
- Be more flexible and allow minor version changes as these are expected
  to be backwards compatible.

avago,apds9300/9600
- Merge near identical bindings. The drivers are quite different, but
  the bindings can be shared. The apds9306 binding introduced in this
  series uses this shared binding doc as well.
- Add missing vdd-supply
- Update binding to use IRQ_TYPE_LEVEL_LOW instead of 8.

bosch,bmp280
- Organize headers

freescale,fxl-imx25-gcq
- Use devm_ for remaining probe() time setup allowing dropping
  of specific error handling and remove() functions.

infineon,dps310
- Fix handling of negative temperatures
- Bring style of other similar calls inline with the form needed
  for temperatures
- Ensure error handling of regmap calls is consistent within the driver.
- Simplify scale reading logic.

invensense,mpu6050
- Flip logic in binding to exclude devices without i2c-gate instead
  of opting in.  The list is expected to be much shorter as all recent
  devices support this feature.

honeywell,hsc030pa
- Use spi_read() instead of opening coding.

renesas,rcar
- Use device_for_each_child_of_node_scoped() to remove need to manually
  release. Left over from series the rest of which went in during 6.9.

st,ab8500
- Fix naming of function parameters in kernel-doc

* tag 'iio-for-6.10a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (108 commits)
  iio: adc: ti-ads131e08: Use device_for_each_child_node_scoped() to simplify error paths.
  iio: adc: adi-axi-adc: only error out in major version mismatch
  iio: dac: support the ad9739a RF DAC
  iio: dac: add support for AXI DAC IP core
  iio: backend: add new functionality
  dt-bindings: iio: dac: add docs for AD9739A
  dt-bindings: iio: dac: add docs for AXI DAC IP
  iio: buffer-dmaengine: Enable write support
  iio: buffer-dmaengine: Support specifying buffer direction
  iio: buffer-dma: Enable buffer write support
  iio: buffer-dma: Rename iio_dma_buffer_data_available()
  iio: buffer-dma: add iio_dmaengine_buffer_setup()
  iio: pressure: dps310: simplify scale factor reading
  iio: pressure: dps310: consistently check return value of `regmap_read`
  iio: pressure: dps310: introduce consistent error handling
  iio: pressure: dps310: support negative temperature values
  dt-bindings: iio: adc: Add GPADC for Allwinner H616
  iio: dac: ad5755: make use of of_device_id table
  iio: imu: inv_icm42600: add support of ICM-42688-P
  dt-bindings: iio: imu: add icm42688 inside inv_icm42600
  ...
 2024-04-23 20:19:37 -07:00
Dave Airlie
83221064c2 UAPI Changes: 
- Remove unused flags (Francois Dugast)
 - Extend uAPI to query HuC micro-controler firmware version (Francois Dugast)
 - drm/xe/uapi: Define topology types as indexes rather than masks
   (Francois Dugast)
 - drm/xe/uapi: Restore flags VM_BIND_FLAG_READONLY and VM_BIND_FLAG_IMMEDIATE
   (Francois Dugast)
 - devcoredump updates. Some touching the output format.
   (José Roberto de Souza, Matthew Brost)
 - drm/xe/hwmon: Add infra to support card power and energy attributes
 - Improve LRC, HWSP and HWCTX error capture. (Maarten Lankhorst)
 - drm/xe/uapi: Add IP version and stepping to GT list query (Matt roper)
 - Invalidate userptr VMA on page pin fault (Matthew Brost)
 - Improve xe_bo_move tracepoint (Priyanka Danamudi)
 - Align fence output format in ftrace log
 
 Cross-driver Changes:
 - drm/i915/hwmon: Get rid of devm (Ashutosh Dixit)
   (Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>)
 - drm/i915/display: convert inner wakeref get towards get_if_in_use
   (SOB Rodrigo Vivi)
 - drm/i915: Convert intel_runtime_pm_get_noresume towards raw wakeref
   (Committer, SOB Jani Nikula)
 
 Driver Changes:
 - Fix for unneeded CCS metadata allocation (Akshata Jahagirdar)
 - Fix for fix multicast support for Xe_LP platforms (Andrzej Hajda)
 - A couple of build fixes (Arnd Bergmann)
 - Fix register definition (Ashutosh Dixit)
 - Add BMG mocs table (Balasubramani Vivekanandan)
 - Replace sprintf() across driver (Bommu Krishnaiah)
 - Add an xe2 workaround (Bommu Krishnaiah)
 - Makefile fix (Dafna Hirschfeld)
 - force_wake_get error value check (Daniele Ceraolo Spurio)
 - Handle GSCCS ER interrupt (Daniele Ceraolo Spurio)
 - GSC Workaround (Daniele Ceraolo Spurio)
 - Build error fix (Dawei Li)
 - drm/xe/gt: Add L3 bank mask to GT topology (Francois Dugast)
 - Implement xe2- and GuC workarounds (Gustavo Sousa, Haridhar Kalvala,
   Himal rasad Ghimiray, John Harrison, Matt Roper, Radhakrishna Sripada,
   Vinay Belgaumkar, Badal Nilawar)
 - xe2hpg compression (Himal Ghimiray Prasad)
 - Error code cleanups and fixes (Himal Prasad Ghimiray)
 - struct xe_device cleanup (Jani Nikula)
 - Avoid validating bos when only requesting an exec dma-fence
   (José Roberto de Souza)
 - Remove debug message from migrate_clear (José Roberto de Souza)
 - Nuke EXEC_QUEUE_FLAG_PERSISTENT leftover internal flag (José Roberto de Souza)
 - Mark dpt and related vma as uncached (Juha-Pekka Heikkila)
 - Hwmon updates (Karthik Poosa)
 - KConfig fix when ACPI_WMI selcted (Lu Yao)
 - Update intel_uncore_read*() return types (Luca Coelho)
 - Mocs updates (Lucas De Marchi, Matt Roper)
 - Drop dynamic load-balancing workaround (Lucas De Marchi)
 - Fix a PVC workaround (Lucas De Marchi)
 - Group live kunit tests into a single module (Lucas De Marchi)
 - Various code cleanups (Lucas De Marchi)
 - Fix a ggtt init error patch and move ggtt invalidate out of ggtt lock
   (Maarten Lankhorst)
 - Fix a bo leak (Marten Lankhorst)
 - Add LRC parsing for more GPU instructions (Matt Roper)
 - Add various definitions for hardware and IP (Matt Roper)
 - Define all possible engines in media IP descriptors (Matt Roper)
 - Various cleanups, asserts and code fixes (Matthew Auld)
 - Various cleanups and code fixes (Matthew Brost)
 - Increase VM_BIND number of per-ioctl Ops (Matthew Brost, Paulo Zanoni)
 - Don't support execlists in xe_gt_tlb_invalidation layer (Matthew Brost)
 - Handle timing out of already signaled jobs gracefully (Matthew Brost)
 - Pipeline evict / restore of pinned BOs during suspend / resume (Matthew Brost)
 - Do not grab forcewakes when issuing GGTT TLB invalidation via GuC
   (Matthew Brost)
 - Drop ggtt invalidate from display code (Matthew Brost)
 - drm/xe: Add XE_BO_GGTT_INVALIDATE flag (Matthew Brost)
 - Add debug messages for MMU notifier and VMA invalidate (Matthew Brost)
 - Use ordered wq for preempt fence waiting (Matthew Brost)
 - Initial development for SR-IOV support including some refactoring
   (Michal Wajdeczko)
 - Various GuC- and GT- related cleanups and fixes (Michal Wajdeczko)
 - Move userptr over to start using hmm_range_fault (Oak Zeng)
 - Add new PCI IDs to DG2 platform (Ravi Kumar Vodapalli)
 - Pcode - and VRAM initialization check update (Riana Tauro)
 - Large PM update including i915 display patches, and a fix for one of those.
   (Rodrigo Vivi)
 - Introduce performance tuning changes for Xe2_HPG (Shekhar Chauhan)
 - GSC / HDCP updates (Suraj Kandpal)
 - Minor code cleanup (Tejas Upadhyay)
 - Rework / fix rebind TLB flushing and move rebind into the drm_exec locking loop
   (Thomas Hellström)
 - Backmerge (Thomas Hellström)
 - GuC updates and fixes (Vinay Belgaumkar, Zhanjun Dong)
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Merge tag 'drm-xe-next-2024-04-23' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

UAPI Changes:
- Remove unused flags (Francois Dugast)
- Extend uAPI to query HuC micro-controler firmware version (Francois Dugast)
- drm/xe/uapi: Define topology types as indexes rather than masks
  (Francois Dugast)
- drm/xe/uapi: Restore flags VM_BIND_FLAG_READONLY and VM_BIND_FLAG_IMMEDIATE
  (Francois Dugast)
- devcoredump updates. Some touching the output format.
  (José Roberto de Souza, Matthew Brost)
- drm/xe/hwmon: Add infra to support card power and energy attributes
- Improve LRC, HWSP and HWCTX error capture. (Maarten Lankhorst)
- drm/xe/uapi: Add IP version and stepping to GT list query (Matt roper)
- Invalidate userptr VMA on page pin fault (Matthew Brost)
- Improve xe_bo_move tracepoint (Priyanka Danamudi)
- Align fence output format in ftrace log

Cross-driver Changes:
- drm/i915/hwmon: Get rid of devm (Ashutosh Dixit)
  (Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>)
- drm/i915/display: convert inner wakeref get towards get_if_in_use
  (SOB Rodrigo Vivi)
- drm/i915: Convert intel_runtime_pm_get_noresume towards raw wakeref
  (Committer, SOB Jani Nikula)

Driver Changes:
- Fix for unneeded CCS metadata allocation (Akshata Jahagirdar)
- Fix for fix multicast support for Xe_LP platforms (Andrzej Hajda)
- A couple of build fixes (Arnd Bergmann)
- Fix register definition (Ashutosh Dixit)
- Add BMG mocs table (Balasubramani Vivekanandan)
- Replace sprintf() across driver (Bommu Krishnaiah)
- Add an xe2 workaround (Bommu Krishnaiah)
- Makefile fix (Dafna Hirschfeld)
- force_wake_get error value check (Daniele Ceraolo Spurio)
- Handle GSCCS ER interrupt (Daniele Ceraolo Spurio)
- GSC Workaround (Daniele Ceraolo Spurio)
- Build error fix (Dawei Li)
- drm/xe/gt: Add L3 bank mask to GT topology (Francois Dugast)
- Implement xe2- and GuC workarounds (Gustavo Sousa, Haridhar Kalvala,
  Himal rasad Ghimiray, John Harrison, Matt Roper, Radhakrishna Sripada,
  Vinay Belgaumkar, Badal Nilawar)
- xe2hpg compression (Himal Ghimiray Prasad)
- Error code cleanups and fixes (Himal Prasad Ghimiray)
- struct xe_device cleanup (Jani Nikula)
- Avoid validating bos when only requesting an exec dma-fence
  (José Roberto de Souza)
- Remove debug message from migrate_clear (José Roberto de Souza)
- Nuke EXEC_QUEUE_FLAG_PERSISTENT leftover internal flag (José Roberto de Souza)
- Mark dpt and related vma as uncached (Juha-Pekka Heikkila)
- Hwmon updates (Karthik Poosa)
- KConfig fix when ACPI_WMI selcted (Lu Yao)
- Update intel_uncore_read*() return types (Luca Coelho)
- Mocs updates (Lucas De Marchi, Matt Roper)
- Drop dynamic load-balancing workaround (Lucas De Marchi)
- Fix a PVC workaround (Lucas De Marchi)
- Group live kunit tests into a single module (Lucas De Marchi)
- Various code cleanups (Lucas De Marchi)
- Fix a ggtt init error patch and move ggtt invalidate out of ggtt lock
  (Maarten Lankhorst)
- Fix a bo leak (Marten Lankhorst)
- Add LRC parsing for more GPU instructions (Matt Roper)
- Add various definitions for hardware and IP (Matt Roper)
- Define all possible engines in media IP descriptors (Matt Roper)
- Various cleanups, asserts and code fixes (Matthew Auld)
- Various cleanups and code fixes (Matthew Brost)
- Increase VM_BIND number of per-ioctl Ops (Matthew Brost, Paulo Zanoni)
- Don't support execlists in xe_gt_tlb_invalidation layer (Matthew Brost)
- Handle timing out of already signaled jobs gracefully (Matthew Brost)
- Pipeline evict / restore of pinned BOs during suspend / resume (Matthew Brost)
- Do not grab forcewakes when issuing GGTT TLB invalidation via GuC
  (Matthew Brost)
- Drop ggtt invalidate from display code (Matthew Brost)
- drm/xe: Add XE_BO_GGTT_INVALIDATE flag (Matthew Brost)
- Add debug messages for MMU notifier and VMA invalidate (Matthew Brost)
- Use ordered wq for preempt fence waiting (Matthew Brost)
- Initial development for SR-IOV support including some refactoring
  (Michal Wajdeczko)
- Various GuC- and GT- related cleanups and fixes (Michal Wajdeczko)
- Move userptr over to start using hmm_range_fault (Oak Zeng)
- Add new PCI IDs to DG2 platform (Ravi Kumar Vodapalli)
- Pcode - and VRAM initialization check update (Riana Tauro)
- Large PM update including i915 display patches, and a fix for one of those.
  (Rodrigo Vivi)
- Introduce performance tuning changes for Xe2_HPG (Shekhar Chauhan)
- GSC / HDCP updates (Suraj Kandpal)
- Minor code cleanup (Tejas Upadhyay)
- Rework / fix rebind TLB flushing and move rebind into the drm_exec locking loop
  (Thomas Hellström)
- Backmerge (Thomas Hellström)
- GuC updates and fixes (Vinay Belgaumkar, Zhanjun Dong)

Signed-off-by: Dave Airlie <airlied@redhat.com>

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# gpg: Signature made Tue 23 Apr 2024 22:42:29 AEST
# gpg:                using EDDSA key 6C91433BC35A06E6BC762193B81693550AC606BF
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# Conflicts:
#	drivers/gpu/drm/xe/xe_device_types.h
#	drivers/gpu/drm/xe/xe_vm.c
#	drivers/gpu/drm/xe/xe_vm_types.h
From: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Zievlb1wvqDg1ovi@fedora
 2024-04-24 10:51:29 +10:00
Greg Kroah-Hartman
e5019b1423 Merge 6.9-rc5 into driver-core-next 
We want the kernfs fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-04-23 13:27:43 +02:00
Sourabh Jain
79365026f8 crash: add a new kexec flag for hotplug support 
Commit a72bbec70d ("crash: hotplug support for kexec_load()")
introduced a new kexec flag, `KEXEC_UPDATE_ELFCOREHDR`. Kexec tool uses
this flag to indicate to the kernel that it is safe to modify the
elfcorehdr of the kdump image loaded using the kexec_load system call.

However, it is possible that architectures may need to update kexec
segments other then elfcorehdr. For example, FDT (Flatten Device Tree)
on PowerPC. Introducing a new kexec flag for every new kexec segment
may not be a good solution. Hence, a generic kexec flag bit,
`KEXEC_CRASH_HOTPLUG_SUPPORT`, is introduced to share the CPU/Memory
hotplug support intent between the kexec tool and the kernel for the
kexec_load system call.

Now we have two kexec flags that enables crash hotplug support for
kexec_load system call. First is KEXEC_UPDATE_ELFCOREHDR (only used in
x86), and second is KEXEC_CRASH_HOTPLUG_SUPPORT (for all architectures).

To simplify the process of finding and reporting the crash hotplug
support the following changes are introduced.

1. Define arch specific function to process the kexec flags and
   determine crash hotplug support

2. Rename the @update_elfcorehdr member of struct kimage to
   @hotplug_support and populate it for both kexec_load and
   kexec_file_load syscalls, because architecture can update more than
   one kexec segment

3. Let generic function crash_check_hotplug_support report hotplug
   support for loaded kdump image based on value of @hotplug_support

To bring the x86 crash hotplug support in line with the above points,
the following changes have been made:

- Introduce the arch_crash_hotplug_support function to process kexec
  flags and determine crash hotplug support

- Remove the arch_crash_hotplug_[cpu|memory]_support functions

Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Acked-by: Baoquan He <bhe@redhat.com>
Acked-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240326055413.186534-3-sourabhjain@linux.ibm.com
 2024-04-23 14:59:01 +10:00
Dan Carpenter
991b5e2aad
regmap: kunit: Fix an NULL vs IS_ERR() check 
The kunit_device_register() function returns error pointers, not NULL.
Passing an error pointer to get_device() will lead to an Oops.  Also
get_device() returns the same device you passed to it.  Fix it!  ;)

Fixes: 7b7982f143 ("regmap: kunit: Create a struct device for the regmap")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/b32e80cf-b385-40cd-b8ec-77ec73e07530@moroto.mountain
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-15 19:54:57 +09:00
Thomas Hellström
79790b6818 Merge drm/drm-next into drm-xe-next 
Backmerging drm-next in order to get up-to-date and in particular
to access commit 9ca5facd04.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
 2024-04-12 15:14:25 +02:00
Rafael J. Wysocki
68313be43d Merge back earlier system-wide PM changes for 6.10. 2024-04-11 20:09:21 +02:00
José Roberto de Souza
a28380f119
devcoredump: Add dev_coredump_put() 
It is useful for modules that do not want to keep coredump available
after its unload.
Otherwise, the coredump would only be removed after DEVCD_TIMEOUT
seconds.

v2:
- dev_coredump_put() documentation updated (Mukesh)

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Mukesh Ojha <quic_mojha@quicinc.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Jonathan Cavitt <jonathan.cavitt@intel.com>
Reviewed-by: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240409200206.108452-1-jose.souza@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
 2024-04-11 09:39:48 -04:00
Arnd Bergmann
85d2b0aa17 module: don't ignore sysfs_create_link() failures 
The sysfs_create_link() return code is marked as __must_check, but the
module_add_driver() function tries hard to not care, by assigning the
return code to a variable. When building with 'make W=1', gcc still
warns because this variable is only assigned but not used:

drivers/base/module.c: In function 'module_add_driver':
drivers/base/module.c:36:6: warning: variable 'no_warn' set but not used [-Wunused-but-set-variable]

Rework the code to properly unwind and return the error code to the
caller. My reading of the original code was that it tries to
not fail when the links already exist, so keep ignoring -EEXIST
errors.

Fixes: e17e0f51ae ("Driver core: show drivers in /sys/module/")
See-also: 4a7fb6363f ("add __must_check to device management code")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20240408080616.3911573-1-arnd@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-04-11 14:42:08 +02:00
Andy Shevchenko
135cec6ba8
regmap: spi: Add missing MODULE_DESCRIPTION() 
The modpost script is not happy

  WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/base/regmap/regmap-spi.o

because there is a missing module description.

Add it to the module.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://msgid.link/r/20240410202912.1659275-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-10 22:45:53 +01:00
Andy Shevchenko
c1ffff8875
regmap: Drop capitalisation in MODULE_DESCRIPTION() 
'Regmap' should be spelled as 'regmap'. Update that.

Suggested-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://msgid.link/r/20240410202912.1659275-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-10 22:45:52 +01:00
Mark Brown
8a8317f927
regmap: kunit: Add some test cases and a few small 
Merge series from Richard Fitzgerald <rf@opensource.cirrus.com>:

This series adds some more test cases, mainly for testing:

commit eaa03486d9 ("regmap: maple: Fix uninitialized symbol 'ret' warnings")
commit 00bb549d7d ("regmap: maple: Fix cache corruption in regcache_maple_drop()")

And the pending patch ("regmap: Add regmap_read_bypassed()")

There are also a few small improvements to the KUnit implementation.
 2024-04-09 23:27:14 +01:00
Richard Fitzgerald
f63eb9ae08
regmap: kunit: Add test cases for regmap_read_bypassed() 
This adds test cases to prove that regmap_read_bypassed() reads
the hardware value while the regmap is in cache-only.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240408144600.230848-12-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-08 16:38:15 +01:00
Richard Fitzgerald
468d277e6f
regmap: kunit: Add cache-drop test with multiple cache blocks 
Add a test case for dropping only some cache blocks and leaving others
unchanged.

The regmap is divided into 8 register ranges, and only 4 of these are
written with values. This creates 4 non-contiguous ranges of registers
with cached values.

One whole range is then dropped, and part of another range. A cache
sync is then performed to check that the correct registers were written,
and the correct values were written to these registers.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240408144600.230848-11-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-08 16:38:14 +01:00
Richard Fitzgerald
d6f2fd7adc
regmap: kunit: Replace a kmalloc/kfree() pair with KUnit-managed alloc 
Replace the kmalloc() and kfree() in raw_read_defaults() with a
kunit_kmalloc() so that KUnit will free it automatically.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240408144600.230848-10-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-08 16:38:13 +01:00
Richard Fitzgerald
ce75e06eea
regmap: kunit: Use a KUnit action to call regmap_exit() 
Registert a KUnit action handler to call regmap_exit() when a test
terminates. This ensures that regmap_exit() will be called if a test
function returns early or aborts.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240408144600.230848-9-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-08 16:38:12 +01:00
Richard Fitzgerald
7903d15f00
regmap: kunit: Add more cache-sync tests 
Extend the testing of cache-sync.

- cache_sync() renamed cache_sync_marked_dirty() for clarity of
  what conditions it is testing.

- cache_sync_defaults() renamed cache_sync_defaults_marked_dirty()
  for clarity. Added code to write the register back to its default
  value to check that a dirty sync doesn't write out the default value.

- Added cache_sync_after_cache_only(). Tests syncing the cache without
  calling regcache_mark_dirty(). A register written while in cache-only
  should be written out by regcache_sync().

- Added cache_sync_default_after_cache_only. This is similar to
  cache_sync_after_cache_only(), but the register is changed to its
  default value while in cache-only. Because regcache_mark_dirty() was
  NOT called, regacache_sync() should write out the register.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240408144600.230848-8-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-08 16:38:11 +01:00
Richard Fitzgerald
7dd52d301c
regmap: kunit: Add more cache-drop tests 
Extend the testing of cache-drop.

- Added cache_drop_all_and_sync_marked_dirty(). If all registers are
  dropped from the cache a regcache_mark_dirty() followed by
  regcache_sync() should not write anything because the cache is empty.

- Added cache_drop_all_and_sync_no_defaults(). This is similar to
  cache_drop_all_and_sync_marked_dirty() except that regcache_mark_dirty()
  is NOT called. All registers were dropped so regcache_sync() should not
  write anything.

- Added cache_drop_all_and_sync_has_defaults(). This is the same as
  cache_drop_all_and_sync_no_defaults() except that the regmap has a
  table of default values.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240408144600.230848-7-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-08 16:38:10 +01:00
Richard Fitzgerald
ac4394bf9c
regmap: kunit: Run non-sparse cache tests at non-zero register addresses 
Change the tests parameterized by real_cache_types_list[] to test at some
register addresses that are not 0.

The cache_range_window_reg() test has hardcoded address assumptions that
are not present in any other tests using real_cache_types_list[] table. So
it has been given a separate parameter table, real_cache_types_only_list[],
that preserves the original parameterization.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240408144600.230848-6-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-08 16:38:09 +01:00
Richard Fitzgerald
710915743d
regmap: kunit: Run sparse cache tests at non-zero register addresses 
Run the cache_drop() and cache_present() tests at blocks of addresses
that don't start at zero.

This adds a from_reg parameter to struct regmap_test_param. This is
used to set the base address of the register defaults created by
gen_regmap().

Extra entries are added to sparse_cache_types_list[] to test at non-zero
from_reg values. The cache_drop() and cache_present() tests are updated
to test at the given offset.

The aim here is to add test cases to cache_drop() for the bug fixed by
commit 00bb549d7d ("regmap: maple: Fix cache corruption in
regcache_maple_drop()")

But the same parameter table is used by the cache_present() test so
let's also update that to use from_reg.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240408144600.230848-5-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-08 16:38:08 +01:00
Richard Fitzgerald
48bccea96f
regmap: kunit: Introduce struct for test case parameters 
Add a struct regmap_test_param and use it for all test cases
instead of passing various different types of param object
depending on the test case.

This makes it much easier and cleaner to expand what can be
parameterized.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240408144600.230848-4-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-08 16:38:08 +01:00
Richard Fitzgerald
7b7982f143
regmap: kunit: Create a struct device for the regmap 
Use kunit_device_register() to create a real struct device for the
regmap instead of leaving it at NULL.

The main reason for this is that it allows context data to be passed
into the readable_reg/writable_reg/volatile_reg functions by attaching
it to the struct device with dev_set_drvdata().

The gen_regmap() and gen_raw_regmap() functions are updated to take a
struct kunit * argument.

A new struct regmap_test_priv has been created to hold the struct device
created by kunit_device_register(). This allows the struct to be
extended in the future to hold more private data for the test suite.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240408144600.230848-3-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-08 16:38:07 +01:00
Richard Fitzgerald
866f70211b
regmap: kunit: Fix warnings of implicit casts to __le16 and __be16 
Fix warnings about implicit casts to __le16 and __be16 types reported
by smatch:

drivers/base/regmap/regmap-kunit.c:1118:25:
warning: cast to restricted __be16
drivers/base/regmap/regmap-kunit.c:1120:25:
warning: cast to restricted __le16
drivers/base/regmap/regmap-kunit.c:1187:33:
warning: cast to restricted __be16
drivers/base/regmap/regmap-kunit.c:1190:33:
warning: cast to restricted __le16
drivers/base/regmap/regmap-kunit.c:1302:33:
warning: cast to restricted __be16
drivers/base/regmap/regmap-kunit.c:1305:33:
warning: cast to restricted __le16

Perform a __force cast for all these.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://msgid.link/r/20240408144600.230848-2-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-08 16:38:06 +01:00
Len Brown
5b9eda2b9a PM: sleep: Take advantage of %ps to simplify debug output 
initcall_debug previous and new output:

...PM: calling pci_pm_suspend+0x0/0x1b0 @ 3233, parent: pci0000:00

...PM: calling pci_pm_suspend @ 3233, parent: pci0000:00

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2024-04-08 17:08:00 +02:00
Richard Fitzgerald
70ee853eec
regmap: Add regmap_read_bypassed() 
Add a regmap_read_bypassed() to allow reads from the hardware registers
while the regmap is in cache-only mode.

A typical use for this is to keep the cache in cache-only mode until
the hardware has reached a valid state, but one or more status registers
must be polled to determine when this state is reached.

For example, firmware download on the cs35l56 can take several seconds if
there are multiple amps sharing limited bus bandwidth. This is too long
to block in probe() so it is done as a background task. The device must
be soft-reset to reboot the firmware and during this time the registers are
not accessible, so the cache should be in cache-only. But the driver must
poll a register to detect when reboot has completed.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: 8a731fd37f ("ASoC: cs35l56: Move utility functions to shared file")
Link: https://msgid.link/r/20240408101803.43183-2-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-04-08 14:09:58 +01:00
Linus Torvalds
a6bec447a8 regmap: Fixes for v6.9 
Richard found a nasty corner case in the maple tree code which he fixed,
 and also fixed a compiler warning which was showing up with the
 toolchain he uses and helpfully identified a possible incorrect error
 code which could have runtime impacts.
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Merge tag 'regmap-fix-v6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap fixes from Mark Brown:
 "Richard found a nasty corner case in the maple tree code which he
  fixed, and also fixed a compiler warning which was showing up with the
  toolchain he uses and helpfully identified a possible incorrect error
  code which could have runtime impacts"

* tag 'regmap-fix-v6.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: maple: Fix uninitialized symbol 'ret' warnings
  regmap: maple: Fix cache corruption in regcache_maple_drop()
 2024-04-05 17:21:16 -07:00
Dhruva Gole
afde996a33 PM: wakeup: make device_wakeup_disable() return void 
The device_wakeup_disable() call only returns an error if no dev exists,
but there's not much a user can do at that point.

Rather, make this function return void.

Signed-off-by: Dhruva Gole <d-gole@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
 2024-04-03 16:51:37 +02:00
Richard Fitzgerald
eaa03486d9
regmap: maple: Fix uninitialized symbol 'ret' warnings 
Fix warnings reported by smatch by initializing local 'ret' variable
to 0.

drivers/base/regmap/regcache-maple.c:186 regcache_maple_drop()
error: uninitialized symbol 'ret'.
drivers/base/regmap/regcache-maple.c:290 regcache_maple_sync()
error: uninitialized symbol 'ret'.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: f033c26de5 ("regmap: Add maple tree based register cache")
Link: https://lore.kernel.org/r/20240329144630.1965159-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-03-29 16:32:26 +00:00
Richard Fitzgerald
00bb549d7d
regmap: maple: Fix cache corruption in regcache_maple_drop() 
When keeping the upper end of a cache block entry, the entry[] array
must be indexed by the offset from the base register of the block,
i.e. max - mas.index.

The code was indexing entry[] by only the register address, leading
to an out-of-bounds access that copied some part of the kernel
memory over the cache contents.

This bug was not detected by the regmap KUnit test because it only
tests with a block of registers starting at 0, so mas.index == 0.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Fixes: f033c26de5 ("regmap: Add maple tree based register cache")
Link: https://msgid.link/r/20240327114406.976986-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-03-27 15:00:28 +00:00
Bjorn Helgaas
0bb322be5d driver core: Remove unused platform_notify, platform_notify_remove 
The "platform_notify" and "platform_notify_remove" hooks have been unused
since 00ba9357d1 ("ARM: ixp4xx: Drop custom DMA coherency and bouncing").

Remove "platform_notify" and "platform_notify_remove".  No functional
change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Link: https://lore.kernel.org/r/20240325221409.1457036-1-helgaas@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-03-27 08:01:12 +01:00
Herve Codina
0462c56c29 driver core: Introduce device_link_wait_removal() 
The commit 80dd33cf72 ("drivers: base: Fix device link removal")
introduces a workqueue to release the consumer and supplier devices used
in the devlink.
In the job queued, devices are release and in turn, when all the
references to these devices are dropped, the release function of the
device itself is called.

Nothing is present to provide some synchronisation with this workqueue
in order to ensure that all ongoing releasing operations are done and
so, some other operations can be started safely.

For instance, in the following sequence:
  1) of_platform_depopulate()
  2) of_overlay_remove()

During the step 1, devices are released and related devlinks are removed
(jobs pushed in the workqueue).
During the step 2, OF nodes are destroyed but, without any
synchronisation with devlink removal jobs, of_overlay_remove() can raise
warnings related to missing of_node_put():
  ERROR: memory leak, expected refcount 1 instead of 2

Indeed, the missing of_node_put() call is going to be done, too late,
from the workqueue job execution.

Introduce device_link_wait_removal() to offer a way to synchronize
operations waiting for the end of devlink removals (i.e. end of
workqueue jobs).
Also, as a flushing operation is done on the workqueue, the workqueue
used is moved from a system-wide workqueue to a local one.

Cc: stable@vger.kernel.org
Signed-off-by: Herve Codina <herve.codina@bootlin.com>
Tested-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Reviewed-by: Saravana Kannan <saravanak@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240325152140.198219-2-herve.codina@bootlin.com
Signed-off-by: Rob Herring <robh@kernel.org>
 2024-03-26 15:32:32 -05:00
Jonathan Cameron
77fc5151f9 device property: Move fwnode_handle_put() into property.h 
By having this function as static inline in the header, the compiler
is able to see if can optmize the call out if (IS_ERR_OR_NULL(fwnode))
This will allow a simpler DEFINE_FREE() call in the following patch.

Suggested-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240217164249.921878-2-jic23@kernel.org
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2024-03-25 19:50:08 +00:00
Colin Ian King
aad6b35290
regmap: maple: Remove second semicolon 
There is a statement with two semicolons. Remove the second one, it
is redundant.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://msgid.link/r/20240315084417.2427797-1-colin.i.king@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
 2024-03-25 00:47:58 +00:00
Linus Torvalds
241590e5a1 Driver core changes for 6.9-rc1 
Here is the "big" set of driver core and kernfs changes for 6.9-rc1.
 
 Nothing all that crazy here, just some good updates that include:
   - automatic attribute group hiding from Dan Williams (he fixed up my
     horrible attempt at doing this.)
   - kobject lock contention fixes from Eric Dumazet
   - driver core cleanups from Andy
   - kernfs rcu work from Tejun
   - fw_devlink changes to resolve some reported issues
   - other minor changes, all details in the shortlog
 
 All of these have been in linux-next for a long time with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here is the "big" set of driver core and kernfs changes for 6.9-rc1.

  Nothing all that crazy here, just some good updates that include:

   - automatic attribute group hiding from Dan Williams (he fixed up my
     horrible attempt at doing this.)

   - kobject lock contention fixes from Eric Dumazet

   - driver core cleanups from Andy

   - kernfs rcu work from Tejun

   - fw_devlink changes to resolve some reported issues

   - other minor changes, all details in the shortlog

  All of these have been in linux-next for a long time with no reported
  issues"

* tag 'driver-core-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (28 commits)
  device: core: Log warning for devices pending deferred probe on timeout
  driver: core: Use dev_* instead of pr_* so device metadata is added
  driver: core: Log probe failure as error and with device metadata
  of: property: fw_devlink: Add support for "post-init-providers" property
  driver core: Add FWLINK_FLAG_IGNORE to completely ignore a fwnode link
  driver core: Adds flags param to fwnode_link_add()
  debugfs: fix wait/cancellation handling during remove
  device property: Don't use "proxy" headers
  device property: Move enum dev_dma_attr to fwnode.h
  driver core: Move fw_devlink stuff to where it belongs
  driver core: Drop unneeded 'extern' keyword in fwnode.h
  firmware_loader: Suppress warning on FW_OPT_NO_WARN flag
  sysfs:Addresses documentation in sysfs_merge_group and sysfs_unmerge_group.
  firmware_loader: introduce __free() cleanup hanler
  platform-msi: Remove usage of the deprecated ida_simple_xx() API
  sysfs: Introduce DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE()
  sysfs: Document new "group visible" helpers
  sysfs: Fix crash on empty group attributes array
  sysfs: Introduce a mechanism to hide static attribute_groups
  sysfs: Introduce a mechanism to hide static attribute_groups
  ...
 2024-03-21 13:34:15 -07:00
Linus Torvalds
02c163e959 cxl for v6.9 
- Supplement ACPI HMAT reported memory performance with native CXL
   memory performance enumeration
 
 - Add support for CXL error injection via the ACPI EINJ mechanism
 
 - Cleanup CXL DOE and CDAT integration
 
 - Miscellaneous cleanups and fixes
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Merge tag 'cxl-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull CXL updates from Dan Williams:
 "CXL has mechanisms to enumerate the performance characteristics of
  memory devices. Those mechanisms allow Linux to build the equivalent
  of ACPI SRAT, SLIT, and HMAT tables dynamically at runtime. That
  capability is necessary because static ACPI can not represent dynamic
  CXL configurations (and reconfigurations).

  So, building on the v6.8 work to add "Quality of Service" enumeration,
  this update plumbs CXL "access coordinates" (read/write access latency
  and bandwidth) in all the same places that ACPI HMAT feeds similar
  data. Follow-on patches from the -mm side can then use that data to
  feed mechanisms like mm/memory-tiers.c. Greg has acked the touch to
  drivers/base/.

  The other feature update this cycle is support for CXL error injection
  via the ACPI EINJ module. That facility enables injection of bus
  protocol errors provided the user knows the magic address values to
  insert in the interface. To hide that magic, and make this easier to
  use, new error injection attributes were added to CXL debugfs. That
  interface injects the errors relative to a CXL object rather than
  require user tooling to know how to lookup and inject RCRB (Root
  Complex Register Block) addresses into the raw EINJ debugfs interface.
  It received some helpful review comments from Tony, but no explicit
  acks from the ACPI side. The primary user visible change for existing
  EINJ users is that they may find that einj.ko was already loaded by
  cxl_core.ko. Previously, einj.ko was only loaded on demand.

  The usual collection of miscellaneous cleanups are also present this
  cycle.

  Summary:

   - Supplement ACPI HMAT reported memory performance with native CXL
     memory performance enumeration

   - Add support for CXL error injection via the ACPI EINJ mechanism

   - Cleanup CXL DOE and CDAT integration

   - Miscellaneous cleanups and fixes"

* tag 'cxl-for-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (21 commits)
  Documentation/ABI/testing/debugfs-cxl: Fix "Unexpected indentation"
  lib/firmware_table: Provide buffer length argument to cdat_table_parse()
  cxl/pci: Get rid of pointer arithmetic reading CDAT table
  cxl/pci: Rename DOE mailbox handle to doe_mb
  cxl: Fix the incorrect assignment of SSLBIS entry pointer initial location
  cxl/core: Add CXL EINJ debugfs files
  EINJ, Documentation: Update EINJ kernel doc
  EINJ: Add CXL error type support
  EINJ: Migrate to a platform driver
  cxl/region: Deal with numa nodes not enumerated by SRAT
  cxl/region: Add memory hotplug notifier for cxl region
  cxl/region: Add sysfs attribute for locality attributes of CXL regions
  cxl/region: Calculate performance data for a region
  cxl: Set cxlmd->endpoint before adding port device
  cxl: Move QoS class to be calculated from the nearest CPU
  cxl: Split out host bridge access coordinates
  cxl: Split out combine_coordinates() for common shared usage
  ACPI: HMAT / cxl: Add retrieval of generic port coordinates for both access classes
  ACPI: HMAT: Introduce 2 levels of generic port access class
  base/node / ACPI: Enumerate node access class for 'struct access_coordinate'
  ...
 2024-03-16 10:04:12 -07:00
Linus Torvalds
902861e34c - Sumanth Korikkar has taught s390 to allocate hotplug-time page frames 
from hotplugged memory rather than only from main memory.  Series
   "implement "memmap on memory" feature on s390".
 
 - More folio conversions from Matthew Wilcox in the series
 
 	"Convert memcontrol charge moving to use folios"
 	"mm: convert mm counter to take a folio"
 
 - Chengming Zhou has optimized zswap's rbtree locking, providing
   significant reductions in system time and modest but measurable
   reductions in overall runtimes.  The series is "mm/zswap: optimize the
   scalability of zswap rb-tree".
 
 - Chengming Zhou has also provided the series "mm/zswap: optimize zswap
   lru list" which provides measurable runtime benefits in some
   swap-intensive situations.
 
 - And Chengming Zhou further optimizes zswap in the series "mm/zswap:
   optimize for dynamic zswap_pools".  Measured improvements are modest.
 
 - zswap cleanups and simplifications from Yosry Ahmed in the series "mm:
   zswap: simplify zswap_swapoff()".
 
 - In the series "Add DAX ABI for memmap_on_memory", Vishal Verma has
   contributed several DAX cleanups as well as adding a sysfs tunable to
   control the memmap_on_memory setting when the dax device is hotplugged
   as system memory.
 
 - Johannes Weiner has added the large series "mm: zswap: cleanups",
   which does that.
 
 - More DAMON work from SeongJae Park in the series
 
 	"mm/damon: make DAMON debugfs interface deprecation unignorable"
 	"selftests/damon: add more tests for core functionalities and corner cases"
 	"Docs/mm/damon: misc readability improvements"
 	"mm/damon: let DAMOS feeds and tame/auto-tune itself"
 
 - In the series "mm/mempolicy: weighted interleave mempolicy and sysfs
   extension" Rakie Kim has developed a new mempolicy interleaving policy
   wherein we allocate memory across nodes in a weighted fashion rather
   than uniformly.  This is beneficial in heterogeneous memory environments
   appearing with CXL.
 
 - Christophe Leroy has contributed some cleanup and consolidation work
   against the ARM pagetable dumping code in the series "mm: ptdump:
   Refactor CONFIG_DEBUG_WX and check_wx_pages debugfs attribute".
 
 - Luis Chamberlain has added some additional xarray selftesting in the
   series "test_xarray: advanced API multi-index tests".
 
 - Muhammad Usama Anjum has reworked the selftest code to make its
   human-readable output conform to the TAP ("Test Anything Protocol")
   format.  Amongst other things, this opens up the use of third-party
   tools to parse and process out selftesting results.
 
 - Ryan Roberts has added fork()-time PTE batching of THP ptes in the
   series "mm/memory: optimize fork() with PTE-mapped THP".  Mainly
   targeted at arm64, this significantly speeds up fork() when the process
   has a large number of pte-mapped folios.
 
 - David Hildenbrand also gets in on the THP pte batching game in his
   series "mm/memory: optimize unmap/zap with PTE-mapped THP".  It
   implements batching during munmap() and other pte teardown situations.
   The microbenchmark improvements are nice.
 
 - And in the series "Transparent Contiguous PTEs for User Mappings" Ryan
   Roberts further utilizes arm's pte's contiguous bit ("contpte
   mappings").  Kernel build times on arm64 improved nicely.  Ryan's series
   "Address some contpte nits" provides some followup work.
 
 - In the series "mm/hugetlb: Restore the reservation" Breno Leitao has
   fixed an obscure hugetlb race which was causing unnecessary page faults.
   He has also added a reproducer under the selftest code.
 
 - In the series "selftests/mm: Output cleanups for the compaction test",
   Mark Brown did what the title claims.
 
 - Kinsey Ho has added the series "mm/mglru: code cleanup and refactoring".
 
 - Even more zswap material from Nhat Pham.  The series "fix and extend
   zswap kselftests" does as claimed.
 
 - In the series "Introduce cpu_dcache_is_aliasing() to fix DAX
   regression" Mathieu Desnoyers has cleaned up and fixed rather a mess in
   our handling of DAX on archiecctures which have virtually aliasing data
   caches.  The arm architecture is the main beneficiary.
 
 - Lokesh Gidra's series "per-vma locks in userfaultfd" provides dramatic
   improvements in worst-case mmap_lock hold times during certain
   userfaultfd operations.
 
 - Some page_owner enhancements and maintenance work from Oscar Salvador
   in his series
 
 	"page_owner: print stacks and their outstanding allocations"
 	"page_owner: Fixup and cleanup"
 
 - Uladzislau Rezki has contributed some vmalloc scalability improvements
   in his series "Mitigate a vmap lock contention".  It realizes a 12x
   improvement for a certain microbenchmark.
 
 - Some kexec/crash cleanup work from Baoquan He in the series "Split
   crash out from kexec and clean up related config items".
 
 - Some zsmalloc maintenance work from Chengming Zhou in the series
 
 	"mm/zsmalloc: fix and optimize objects/page migration"
 	"mm/zsmalloc: some cleanup for get/set_zspage_mapping()"
 
 - Zi Yan has taught the MM to perform compaction on folios larger than
   order=0.  This a step along the path to implementaton of the merging of
   large anonymous folios.  The series is named "Enable >0 order folio
   memory compaction".
 
 - Christoph Hellwig has done quite a lot of cleanup work in the
   pagecache writeback code in his series "convert write_cache_pages() to
   an iterator".
 
 - Some modest hugetlb cleanups and speedups in Vishal Moola's series
   "Handle hugetlb faults under the VMA lock".
 
 - Zi Yan has changed the page splitting code so we can split huge pages
   into sizes other than order-0 to better utilize large folios.  The
   series is named "Split a folio to any lower order folios".
 
 - David Hildenbrand has contributed the series "mm: remove
   total_mapcount()", a cleanup.
 
 - Matthew Wilcox has sought to improve the performance of bulk memory
   freeing in his series "Rearrange batched folio freeing".
 
 - Gang Li's series "hugetlb: parallelize hugetlb page init on boot"
   provides large improvements in bootup times on large machines which are
   configured to use large numbers of hugetlb pages.
 
 - Matthew Wilcox's series "PageFlags cleanups" does that.
 
 - Qi Zheng's series "minor fixes and supplement for ptdesc" does that
   also.  S390 is affected.
 
 - Cleanups to our pagemap utility functions from Peter Xu in his series
   "mm/treewide: Replace pXd_large() with pXd_leaf()".
 
 - Nico Pache has fixed a few things with our hugepage selftests in his
   series "selftests/mm: Improve Hugepage Test Handling in MM Selftests".
 
 - Also, of course, many singleton patches to many things.  Please see
   the individual changelogs for details.
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Merge tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - Sumanth Korikkar has taught s390 to allocate hotplug-time page frames
   from hotplugged memory rather than only from main memory. Series
   "implement "memmap on memory" feature on s390".

 - More folio conversions from Matthew Wilcox in the series

	"Convert memcontrol charge moving to use folios"
	"mm: convert mm counter to take a folio"

 - Chengming Zhou has optimized zswap's rbtree locking, providing
   significant reductions in system time and modest but measurable
   reductions in overall runtimes. The series is "mm/zswap: optimize the
   scalability of zswap rb-tree".

 - Chengming Zhou has also provided the series "mm/zswap: optimize zswap
   lru list" which provides measurable runtime benefits in some
   swap-intensive situations.

 - And Chengming Zhou further optimizes zswap in the series "mm/zswap:
   optimize for dynamic zswap_pools". Measured improvements are modest.

 - zswap cleanups and simplifications from Yosry Ahmed in the series
   "mm: zswap: simplify zswap_swapoff()".

 - In the series "Add DAX ABI for memmap_on_memory", Vishal Verma has
   contributed several DAX cleanups as well as adding a sysfs tunable to
   control the memmap_on_memory setting when the dax device is
   hotplugged as system memory.

 - Johannes Weiner has added the large series "mm: zswap: cleanups",
   which does that.

 - More DAMON work from SeongJae Park in the series

	"mm/damon: make DAMON debugfs interface deprecation unignorable"
	"selftests/damon: add more tests for core functionalities and corner cases"
	"Docs/mm/damon: misc readability improvements"
	"mm/damon: let DAMOS feeds and tame/auto-tune itself"

 - In the series "mm/mempolicy: weighted interleave mempolicy and sysfs
   extension" Rakie Kim has developed a new mempolicy interleaving
   policy wherein we allocate memory across nodes in a weighted fashion
   rather than uniformly. This is beneficial in heterogeneous memory
   environments appearing with CXL.

 - Christophe Leroy has contributed some cleanup and consolidation work
   against the ARM pagetable dumping code in the series "mm: ptdump:
   Refactor CONFIG_DEBUG_WX and check_wx_pages debugfs attribute".

 - Luis Chamberlain has added some additional xarray selftesting in the
   series "test_xarray: advanced API multi-index tests".

 - Muhammad Usama Anjum has reworked the selftest code to make its
   human-readable output conform to the TAP ("Test Anything Protocol")
   format. Amongst other things, this opens up the use of third-party
   tools to parse and process out selftesting results.

 - Ryan Roberts has added fork()-time PTE batching of THP ptes in the
   series "mm/memory: optimize fork() with PTE-mapped THP". Mainly
   targeted at arm64, this significantly speeds up fork() when the
   process has a large number of pte-mapped folios.

 - David Hildenbrand also gets in on the THP pte batching game in his
   series "mm/memory: optimize unmap/zap with PTE-mapped THP". It
   implements batching during munmap() and other pte teardown
   situations. The microbenchmark improvements are nice.

 - And in the series "Transparent Contiguous PTEs for User Mappings"
   Ryan Roberts further utilizes arm's pte's contiguous bit ("contpte
   mappings"). Kernel build times on arm64 improved nicely. Ryan's
   series "Address some contpte nits" provides some followup work.

 - In the series "mm/hugetlb: Restore the reservation" Breno Leitao has
   fixed an obscure hugetlb race which was causing unnecessary page
   faults. He has also added a reproducer under the selftest code.

 - In the series "selftests/mm: Output cleanups for the compaction
   test", Mark Brown did what the title claims.

 - Kinsey Ho has added the series "mm/mglru: code cleanup and
   refactoring".

 - Even more zswap material from Nhat Pham. The series "fix and extend
   zswap kselftests" does as claimed.

 - In the series "Introduce cpu_dcache_is_aliasing() to fix DAX
   regression" Mathieu Desnoyers has cleaned up and fixed rather a mess
   in our handling of DAX on archiecctures which have virtually aliasing
   data caches. The arm architecture is the main beneficiary.

 - Lokesh Gidra's series "per-vma locks in userfaultfd" provides
   dramatic improvements in worst-case mmap_lock hold times during
   certain userfaultfd operations.

 - Some page_owner enhancements and maintenance work from Oscar Salvador
   in his series

	"page_owner: print stacks and their outstanding allocations"
	"page_owner: Fixup and cleanup"

 - Uladzislau Rezki has contributed some vmalloc scalability
   improvements in his series "Mitigate a vmap lock contention". It
   realizes a 12x improvement for a certain microbenchmark.

 - Some kexec/crash cleanup work from Baoquan He in the series "Split
   crash out from kexec and clean up related config items".

 - Some zsmalloc maintenance work from Chengming Zhou in the series

	"mm/zsmalloc: fix and optimize objects/page migration"
	"mm/zsmalloc: some cleanup for get/set_zspage_mapping()"

 - Zi Yan has taught the MM to perform compaction on folios larger than
   order=0. This a step along the path to implementaton of the merging
   of large anonymous folios. The series is named "Enable >0 order folio
   memory compaction".

 - Christoph Hellwig has done quite a lot of cleanup work in the
   pagecache writeback code in his series "convert write_cache_pages()
   to an iterator".

 - Some modest hugetlb cleanups and speedups in Vishal Moola's series
   "Handle hugetlb faults under the VMA lock".

 - Zi Yan has changed the page splitting code so we can split huge pages
   into sizes other than order-0 to better utilize large folios. The
   series is named "Split a folio to any lower order folios".

 - David Hildenbrand has contributed the series "mm: remove
   total_mapcount()", a cleanup.

 - Matthew Wilcox has sought to improve the performance of bulk memory
   freeing in his series "Rearrange batched folio freeing".

 - Gang Li's series "hugetlb: parallelize hugetlb page init on boot"
   provides large improvements in bootup times on large machines which
   are configured to use large numbers of hugetlb pages.

 - Matthew Wilcox's series "PageFlags cleanups" does that.

 - Qi Zheng's series "minor fixes and supplement for ptdesc" does that
   also. S390 is affected.

 - Cleanups to our pagemap utility functions from Peter Xu in his series
   "mm/treewide: Replace pXd_large() with pXd_leaf()".

 - Nico Pache has fixed a few things with our hugepage selftests in his
   series "selftests/mm: Improve Hugepage Test Handling in MM
   Selftests".

 - Also, of course, many singleton patches to many things. Please see
   the individual changelogs for details.

* tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (435 commits)
  mm/zswap: remove the memcpy if acomp is not sleepable
  crypto: introduce: acomp_is_async to expose if comp drivers might sleep
  memtest: use {READ,WRITE}_ONCE in memory scanning
  mm: prohibit the last subpage from reusing the entire large folio
  mm: recover pud_leaf() definitions in nopmd case
  selftests/mm: skip the hugetlb-madvise tests on unmet hugepage requirements
  selftests/mm: skip uffd hugetlb tests with insufficient hugepages
  selftests/mm: dont fail testsuite due to a lack of hugepages
  mm/huge_memory: skip invalid debugfs new_order input for folio split
  mm/huge_memory: check new folio order when split a folio
  mm, vmscan: retry kswapd's priority loop with cache_trim_mode off on failure
  mm: add an explicit smp_wmb() to UFFDIO_CONTINUE
  mm: fix list corruption in put_pages_list
  mm: remove folio from deferred split list before uncharging it
  filemap: avoid unnecessary major faults in filemap_fault()
  mm,page_owner: drop unnecessary check
  mm,page_owner: check for null stack_record before bumping its refcount
  mm: swap: fix race between free_swap_and_cache() and swapoff()
  mm/treewide: align up pXd_leaf() retval across archs
  mm/treewide: drop pXd_large()
  ...
 2024-03-14 17:43:30 -07:00
Linus Torvalds
07abb19a9b Power management updates for 6.9-rc1 
- Allow the Energy Model to be updated dynamically (Lukasz Luba).
 
  - Add support for LZ4 compression algorithm to the hibernation image
    creation and loading code (Nikhil V).
 
  - Fix and clean up system suspend statistics collection (Rafael
    Wysocki).
 
  - Simplify device suspend and resume handling in the power management
    core code (Rafael Wysocki).
 
  - Fix PCI hibernation support description (Yiwei Lin).
 
  - Make hibernation take set_memory_ro() return values into account as
    appropriate (Christophe Leroy).
 
  - Set mem_sleep_current during kernel command line setup to avoid an
    ordering issue with handling it (Maulik Shah).
 
  - Fix wake IRQs handling when pm_runtime_force_suspend() is used as a
    driver's system suspend callback (Qingliang Li).
 
  - Simplify pm_runtime_get_if_active() usage and add a replacement for
    pm_runtime_put_autosuspend() (Sakari Ailus).
 
  - Add a tracepoint for runtime_status changes tracking (Vilas Bhat).
 
  - Fix section title markdown in the runtime PM documentation (Yiwei
    Lin).
 
  - Enable preferred core support in the amd-pstate cpufreq driver (Meng
    Li).
 
  - Fix min_perf assignment in amd_pstate_adjust_perf() and make the
    min/max limit perf values in amd-pstate always stay within the
    (highest perf, lowest perf) range (Tor Vic, Meng Li).
 
  - Allow intel_pstate to assign model-specific values to strings used in
    the EPP sysfs interface and make it do so on Meteor Lake (Srinivas
    Pandruvada).
 
  - Drop long-unused cpudata::prev_cummulative_iowait from the
    intel_pstate cpufreq driver (Jiri Slaby).
 
  - Prevent scaling_cur_freq from exceeding scaling_max_freq when the
    latter is an inefficient frequency (Shivnandan Kumar).
 
  - Change default transition delay in cpufreq to 2ms (Qais Yousef).
 
  - Remove references to 10ms minimum sampling rate from comments in the
    cpufreq code (Pierre Gondois).
 
  - Honour transition_latency over transition_delay_us in cpufreq (Qais
    Yousef).
 
  - Stop unregistering cpufreq cooling on CPU hot-remove (Viresh Kumar).
 
  - General enhancements / cleanups to ARM cpufreq drivers (tianyu2,
    Nícolas F. R. A. Prado, Erick Archer, Arnd Bergmann, Anastasia
    Belova).
 
  - Update cpufreq-dt-platdev to block/approve devices (Richard Acayan).
 
  - Make the SCMI cpufreq driver get a transition delay value from
    firmware (Pierre Gondois).
 
  - Prevent the haltpoll cpuidle governor from shrinking guest
    poll_limit_ns below grow_start (Parshuram Sangle).
 
  - Avoid potential overflow in integer multiplication when computing
    cpuidle state parameters (C Cheng).
 
  - Adjust MWAIT hint target C-state computation in the ACPI cpuidle
    driver and in intel_idle to return a correct value for C0 (He
    Rongguang).
 
  - Address multiple issues in the TPMI RAPL driver and add support for
    new platforms (Lunar Lake-M, Arrow Lake) to Intel RAPL (Zhang Rui).
 
  - Fix freq_qos_add_request() return value check in dtpm_cpu (Daniel
    Lezcano).
 
  - Fix kernel-doc for dtpm_create_hierarchy() (Yang Li).
 
  - Fix file leak in get_pkg_num() in x86_energy_perf_policy (Samasth
    Norway Ananda).
 
  - Fix cpupower-frequency-info.1 man page typo (Jan Kratochvil).
 
  - Fix a couple of warnings in the OPP core code related to W=1
    builds (Viresh Kumar).
 
  - Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h (Viresh
    Kumar).
 
  - Extend dev_pm_opp_data with turbo support (Sibi Sankar).
 
  - dt-bindings: drop maxItems from inner items (David Heidelberg).
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Merge tag 'pm-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "From the functional perspective, the most significant change here is
  the addition of support for Energy Models that can be updated
  dynamically at run time.

  There is also the addition of LZ4 compression support for hibernation,
  the new preferred core support in amd-pstate, new platforms support in
  the Intel RAPL driver, new model-specific EPP handling in intel_pstate
  and more.

  Apart from that, the cpufreq default transition delay is reduced from
  10 ms to 2 ms (along with some related adjustments), the system
  suspend statistics code undergoes a significant rework and there is a
  usual bunch of fixes and code cleanups all over.

  Specifics:

   - Allow the Energy Model to be updated dynamically (Lukasz Luba)

   - Add support for LZ4 compression algorithm to the hibernation image
     creation and loading code (Nikhil V)

   - Fix and clean up system suspend statistics collection (Rafael
     Wysocki)

   - Simplify device suspend and resume handling in the power management
     core code (Rafael Wysocki)

   - Fix PCI hibernation support description (Yiwei Lin)

   - Make hibernation take set_memory_ro() return values into account as
     appropriate (Christophe Leroy)

   - Set mem_sleep_current during kernel command line setup to avoid an
     ordering issue with handling it (Maulik Shah)

   - Fix wake IRQs handling when pm_runtime_force_suspend() is used as a
     driver's system suspend callback (Qingliang Li)

   - Simplify pm_runtime_get_if_active() usage and add a replacement for
     pm_runtime_put_autosuspend() (Sakari Ailus)

   - Add a tracepoint for runtime_status changes tracking (Vilas Bhat)

   - Fix section title markdown in the runtime PM documentation (Yiwei
     Lin)

   - Enable preferred core support in the amd-pstate cpufreq driver
     (Meng Li)

   - Fix min_perf assignment in amd_pstate_adjust_perf() and make the
     min/max limit perf values in amd-pstate always stay within the
     (highest perf, lowest perf) range (Tor Vic, Meng Li)

   - Allow intel_pstate to assign model-specific values to strings used
     in the EPP sysfs interface and make it do so on Meteor Lake
     (Srinivas Pandruvada)

   - Drop long-unused cpudata::prev_cummulative_iowait from the
     intel_pstate cpufreq driver (Jiri Slaby)

   - Prevent scaling_cur_freq from exceeding scaling_max_freq when the
     latter is an inefficient frequency (Shivnandan Kumar)

   - Change default transition delay in cpufreq to 2ms (Qais Yousef)

   - Remove references to 10ms minimum sampling rate from comments in
     the cpufreq code (Pierre Gondois)

   - Honour transition_latency over transition_delay_us in cpufreq (Qais
     Yousef)

   - Stop unregistering cpufreq cooling on CPU hot-remove (Viresh Kumar)

   - General enhancements / cleanups to ARM cpufreq drivers (tianyu2,
     Nícolas F. R. A. Prado, Erick Archer, Arnd Bergmann, Anastasia
     Belova)

   - Update cpufreq-dt-platdev to block/approve devices (Richard Acayan)

   - Make the SCMI cpufreq driver get a transition delay value from
     firmware (Pierre Gondois)

   - Prevent the haltpoll cpuidle governor from shrinking guest
     poll_limit_ns below grow_start (Parshuram Sangle)

   - Avoid potential overflow in integer multiplication when computing
     cpuidle state parameters (C Cheng)

   - Adjust MWAIT hint target C-state computation in the ACPI cpuidle
     driver and in intel_idle to return a correct value for C0 (He
     Rongguang)

   - Address multiple issues in the TPMI RAPL driver and add support for
     new platforms (Lunar Lake-M, Arrow Lake) to Intel RAPL (Zhang Rui)

   - Fix freq_qos_add_request() return value check in dtpm_cpu (Daniel
     Lezcano)

   - Fix kernel-doc for dtpm_create_hierarchy() (Yang Li)

   - Fix file leak in get_pkg_num() in x86_energy_perf_policy (Samasth
     Norway Ananda)

   - Fix cpupower-frequency-info.1 man page typo (Jan Kratochvil)

   - Fix a couple of warnings in the OPP core code related to W=1 builds
     (Viresh Kumar)

   - Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h (Viresh
     Kumar)

   - Extend dev_pm_opp_data with turbo support (Sibi Sankar)

   - dt-bindings: drop maxItems from inner items (David Heidelberg)"

* tag 'pm-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (95 commits)
  dt-bindings: opp: drop maxItems from inner items
  OPP: debugfs: Fix warning around icc_get_name()
  OPP: debugfs: Fix warning with W=1 builds
  cpufreq: Move dev_pm_opp_{init|free}_cpufreq_table() to pm_opp.h
  OPP: Extend dev_pm_opp_data with turbo support
  Fix cpupower-frequency-info.1 man page typo
  cpufreq: scmi: Set transition_delay_us
  firmware: arm_scmi: Populate fast channel rate_limit
  firmware: arm_scmi: Populate perf commands rate_limit
  cpuidle: ACPI/intel: fix MWAIT hint target C-state computation
  PM: sleep: wakeirq: fix wake irq warning in system suspend
  powercap: dtpm: Fix kernel-doc for dtpm_create_hierarchy() function
  cpufreq: Don't unregister cpufreq cooling on CPU hotplug
  PM: suspend: Set mem_sleep_current during kernel command line setup
  cpufreq: Honour transition_latency over transition_delay_us
  cpufreq: Limit resolving a frequency to policy min/max
  Documentation: PM: Fix runtime_pm.rst markdown syntax
  cpufreq: amd-pstate: adjust min/max limit perf
  cpufreq: Remove references to 10ms min sampling rate
  cpufreq: intel_pstate: Update default EPPs for Meteor Lake
  ...
 2024-03-13 11:40:06 -07:00
Linus Torvalds
a070a08d00 Core: 
- Log a message when unused PM domains gets disabled
  - Scale down parent/child performance states in the reverse order
 
 Providers:
  - qcom: rpmpd: Add power domains support for MSM8974, MSM8974PRO, PMA8084
    and PM8841
  - renesas: rcar-gen4-sysc: Reduce atomic delays
  - renesas: rcar-sysc: Adjust the waiting time to cover the worst case
  - renesas: r8a779h0-sysc: Add support for the r8a779h0 PM domains
  - imx: imx8mp-blk-ctrl: Add the fdcc clock to the hdmimix domains
  - imx: imx8mp-blk-ctrl: Error out if domains are missing in DT
 
 Improve support for multiple PM domains:
  - Add two helper functions to attach/detach multiple PM domains
  - Convert a couple of drivers to use the new helper functions
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Merge tag 'pmdomain-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm

Pull pmdomain updates from Ulf Hansson:
 "Core:
   - Log a message when unused PM domains gets disabled
   - Scale down parent/child performance states in the reverse order

  Providers:
   - qcom: rpmpd: Add power domains support for MSM8974, MSM8974PRO,
     PMA8084 and PM8841
   - renesas: rcar-gen4-sysc: Reduce atomic delays
   - renesas: rcar-sysc: Adjust the waiting time to cover the worst case
   - renesas: r8a779h0-sysc: Add support for the r8a779h0 PM domains
   - imx: imx8mp-blk-ctrl: Add the fdcc clock to the hdmimix domains
   - imx: imx8mp-blk-ctrl: Error out if domains are missing in DT

  Improve support for multiple PM domains:
   - Add two helper functions to attach/detach multiple PM domains
   - Convert a couple of drivers to use the new helper functions"

* tag 'pmdomain-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (22 commits)
  pmdomain: renesas: rcar-gen4-sysc: Reduce atomic delays
  pmdomain: renesas: Adjust the waiting time to cover the worst case
  pmdomain: qcom: rpmpd: Add MSM8974PRO+PMA8084 power domains
  pmdomain: qcom: rpmpd: Add MSM8974+PM8841 power domains
  pmdomain: core: constify of_phandle_args in add device and subdomain
  pmdomain: core: constify of_phandle_args in xlate
  media: venus: Convert to dev_pm_domain_attach|detach_list() for vcodec
  remoteproc: qcom_q6v5_adsp: Convert to dev_pm_domain_attach|detach_list()
  remoteproc: imx_rproc: Convert to dev_pm_domain_attach|detach_list()
  remoteproc: imx_dsp_rproc: Convert to dev_pm_domain_attach|detach_list()
  PM: domains: Add helper functions to attach/detach multiple PM domains
  pmdomain: imx8mp-blk-ctrl: imx8mp_blk: Add fdcc clock to hdmimix domain
  pmdomain: mediatek: Use devm_platform_ioremap_resource() in init_scp()
  pmdomain: renesas: r8a779h0-sysc: Add r8a779h0 support
  pmdomain: imx8mp-blk-ctrl: Error out if domains are missing in DT
  pmdomain: ti: Add a null pointer check to the omap_prm_domain_init
  pmdomain: renesas: rcar-gen4-sysc: Remove unneeded includes
  pmdomain: core: Print a message when unused power domains are disabled
  pmdomain: qcom: rpmpd: Keep one RPM handle for all RPMPDs
  pmdomain: core: Scale down parent/child performance states in reverse order
  ...
 2024-03-13 11:33:10 -07:00
Linus Torvalds
b30f2db0b7 regmap: Updates for v6.9 
Just two updates this time around, a rework of max_register handling
 which enables us to support devices with only one register better and a
 new test which will be used to validate use of some new SPI
 optimisations which will be coming in during this merge window.
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Merge tag 'regmap-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap updates from Mark Brown:
 "Just two updates this time around, a rework of max_register handling
  which enables us to support devices with only one register better and
  a new test which will be used to validate use of some new SPI
  optimisations which will be coming in during this merge window"

* tag 'regmap-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: kunit: Add a test for ranges in combination with windows
  regmap: rework ->max_register handling
 2024-03-13 11:01:21 -07:00
Dave Jiang
debdce20c4 cxl/region: Deal with numa nodes not enumerated by SRAT 
For the numa nodes that are not created by SRAT, no memory_target is
allocated and is not managed by the HMAT_REPORTING code. Therefore
hmat_callback() memory hotplug notifier will exit early on those NUMA
nodes. The CXL memory hotplug notifier will need to call
node_set_perf_attrs() directly in order to setup the access sysfs
attributes.

In acpi_numa_init(), the last proximity domain (pxm) id created by SRAT is
stored. Add a helper function acpi_node_backed_by_real_pxm() in order to
check if a NUMA node id is defined by SRAT or created by CFMWS.

node_set_perf_attrs() symbol is exported to allow update of perf attribs
for a node. The sysfs path of
/sys/devices/system/node/nodeX/access0/initiators/* is created by
node_set_perf_attrs() for the various attributes where nodeX is matched
to the NUMA node of the CXL region.

Cc: Rafael J. Wysocki <rafael@kernel.org>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20240308220055.2172956-13-dave.jiang@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2024-03-12 14:54:03 -07:00
Dave Jiang
11270e5262 base/node / ACPI: Enumerate node access class for 'struct access_coordinate' 
Both generic node and HMAT handling code have been using magic numbers to
indicate access classes for 'struct access_coordinate'. Introduce enums to
enumerate the access0 and access1 classes shared by the two subsystems.
Update the function parameters and callers as appropriate to utilize the
new enum.

Access0 is named to ACCESS_COORDINATE_LOCAL in order to indicate that the
access class is for 'struct access_coordinate' between a target node and
the nearest initiator node.

Access1 is named to ACCESS_COORDINATE_CPU in order to indicate that the
access class is for 'struct access_coordinate' between a target node and
the nearest CPU node.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/20240308220055.2172956-3-dave.jiang@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
 2024-03-12 12:34:11 -07:00
Linus Torvalds
0e33cf955f * Mitigate RFDS vulnerability 
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Merge tag 'rfds-for-linus-2024-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 RFDS mitigation from Dave Hansen:
 "RFDS is a CPU vulnerability that may allow a malicious userspace to
  infer stale register values from kernel space. Kernel registers can
  have all kinds of secrets in them so the mitigation is basically to
  wait until the kernel is about to return to userspace and has user
  values in the registers. At that point there is little chance of
  kernel secrets ending up in the registers and the microarchitectural
  state can be cleared.

  This leverages some recent robustness fixes for the existing MDS
  vulnerability. Both MDS and RFDS use the VERW instruction for
  mitigation"

* tag 'rfds-for-linus-2024-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  KVM/x86: Export RFDS_NO and RFDS_CLEAR to guests
  x86/rfds: Mitigate Register File Data Sampling (RFDS)
  Documentation/hw-vuln: Add documentation for RFDS
  x86/mmio: Disable KVM mitigation when X86_FEATURE_CLEAR_CPU_BUF is set
 2024-03-12 09:31:39 -07:00
Linus Torvalds
4527e83780 Updates for the MSI interrupt subsystem and RISC-V initial MSI support: 
- Core and platform-MSI
 
     The core changes have been adopted from previous work which converted
     ARM[64] to the new per device MSI domain model, which was merged to
     support multiple MSI domain per device. The ARM[64] changes are being
     worked on too, but have not been ready yet. The core and platform-MSI
     changes have been split out to not hold up RISC-V and to avoid that
     RISC-V builds on the scheduled for removal interfaces.
 
     The core support provides new interfaces to handle wire to MSI bridges
     in a straight forward way and introduces new platform-MSI interfaces
     which are built on top of the per device MSI domain model.
 
     Once ARM[64] is converted over the old platform-MSI interfaces and the
     related ugliness in the MSI core code will be removed.
 
   - Drivers:
 
     - Add a new driver for the Andes hart-level interrupt controller
 
     - Rework the SiFive PLIC driver to prepare for MSI suport
 
     - Expand the RISC-V INTC driver to support the new RISC-V AIA
       controller which provides the basis for MSI on RISC-V
 
     - A few fixup for the fallout of the core changes.
 
     The actual MSI parts for RISC-V were finalized late and have been
     post-poned for the next merge window.
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Merge tag 'irq-msi-2024-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull MSI updates from Thomas Gleixner:
 "Updates for the MSI interrupt subsystem and initial RISC-V MSI
  support.

  The core changes have been adopted from previous work which converted
  ARM[64] to the new per device MSI domain model, which was merged to
  support multiple MSI domain per device. The ARM[64] changes are being
  worked on too, but have not been ready yet. The core and platform-MSI
  changes have been split out to not hold up RISC-V and to avoid that
  RISC-V builds on the scheduled for removal interfaces.

  The core support provides new interfaces to handle wire to MSI bridges
  in a straight forward way and introduces new platform-MSI interfaces
  which are built on top of the per device MSI domain model.

  Once ARM[64] is converted over the old platform-MSI interfaces and the
  related ugliness in the MSI core code will be removed.

  The actual MSI parts for RISC-V were finalized late and have been
  post-poned for the next merge window.

  Drivers:

   - Add a new driver for the Andes hart-level interrupt controller

   - Rework the SiFive PLIC driver to prepare for MSI suport

   - Expand the RISC-V INTC driver to support the new RISC-V AIA
     controller which provides the basis for MSI on RISC-V

   - A few fixup for the fallout of the core changes"

* tag 'irq-msi-2024-03-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (29 commits)
  irqchip/riscv-intc: Fix low-level interrupt handler setup for AIA
  x86/apic/msi: Use DOMAIN_BUS_GENERIC_MSI for HPET/IO-APIC domain search
  genirq/matrix: Dynamic bitmap allocation
  irqchip/riscv-intc: Add support for RISC-V AIA
  irqchip/sifive-plic: Improve locking safety by using irqsave/irqrestore
  irqchip/sifive-plic: Parse number of interrupts and contexts early in plic_probe()
  irqchip/sifive-plic: Cleanup PLIC contexts upon irqdomain creation failure
  irqchip/sifive-plic: Use riscv_get_intc_hwnode() to get parent fwnode
  irqchip/sifive-plic: Use devm_xyz() for managed allocation
  irqchip/sifive-plic: Use dev_xyz() in-place of pr_xyz()
  irqchip/sifive-plic: Convert PLIC driver into a platform driver
  irqchip/riscv-intc: Introduce Andes hart-level interrupt controller
  irqchip/riscv-intc: Allow large non-standard interrupt number
  genirq/irqdomain: Don't call ops->select for DOMAIN_BUS_ANY tokens
  irqchip/imx-intmux: Handle pure domain searches correctly
  genirq/msi: Provide MSI_FLAG_PARENT_PM_DEV
  genirq/irqdomain: Reroute device MSI create_mapping
  genirq/msi: Provide allocation/free functions for "wired" MSI interrupts
  genirq/msi: Optionally use dev->fwnode for device domain
  genirq/msi: Provide DOMAIN_BUS_WIRED_TO_MSI
  ...
 2024-03-11 14:03:03 -07:00
Pawan Gupta
8076fcde01 x86/rfds: Mitigate Register File Data Sampling (RFDS) 
RFDS is a CPU vulnerability that may allow userspace to infer kernel
stale data previously used in floating point registers, vector registers
and integer registers. RFDS only affects certain Intel Atom processors.

Intel released a microcode update that uses VERW instruction to clear
the affected CPU buffers. Unlike MDS, none of the affected cores support
SMT.

Add RFDS bug infrastructure and enable the VERW based mitigation by
default, that clears the affected buffers just before exiting to
userspace. Also add sysfs reporting and cmdline parameter
"reg_file_data_sampling" to control the mitigation.

For details see:
Documentation/admin-guide/hw-vuln/reg-file-data-sampling.rst

Signed-off-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Josh Poimboeuf <jpoimboe@kernel.org>
 2024-03-11 13:13:48 -07:00
Linus Torvalds
1ddeeb2a05 for-6.9/block-20240310 
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Merge tag 'for-6.9/block-20240310' of git://git.kernel.dk/linux

Pull block updates from Jens Axboe:

 - MD pull requests via Song:
      - Cleanup redundant checks (Yu Kuai)
      - Remove deprecated headers (Marc Zyngier, Song Liu)
      - Concurrency fixes (Li Lingfeng)
      - Memory leak fix (Li Nan)
      - Refactor raid1 read_balance (Yu Kuai, Paul Luse)
      - Clean up and fix for md_ioctl (Li Nan)
      - Other small fixes (Gui-Dong Han, Heming Zhao)
      - MD atomic limits (Christoph)

 - NVMe pull request via Keith:
      - RDMA target enhancements (Max)
      - Fabrics fixes (Max, Guixin, Hannes)
      - Atomic queue_limits usage (Christoph)
      - Const use for class_register (Ricardo)
      - Identification error handling fixes (Shin'ichiro, Keith)

 - Improvement and cleanup for cached request handling (Christoph)

 - Moving towards atomic queue limits. Core changes and driver bits so
   far (Christoph)

 - Fix UAF issues in aoeblk (Chun-Yi)

 - Zoned fix and cleanups (Damien)

 - s390 dasd cleanups and fixes (Jan, Miroslav)

 - Block issue timestamp caching (me)

 - noio scope guarding for zoned IO (Johannes)

 - block/nvme PI improvements (Kanchan)

 - Ability to terminate long running discard loop (Keith)

 - bdev revalidation fix (Li)

 - Get rid of old nr_queues hack for kdump kernels (Ming)

 - Support for async deletion of ublk (Ming)

 - Improve IRQ bio recycling (Pavel)

 - Factor in CPU capacity for remote vs local completion (Qais)

 - Add shared_tags configfs entry for null_blk (Shin'ichiro

 - Fix for a regression in page refcounts introduced by the folio
   unification (Tony)

 - Misc fixes and cleanups (Arnd, Colin, John, Kunwu, Li, Navid,
   Ricardo, Roman, Tang, Uwe)

* tag 'for-6.9/block-20240310' of git://git.kernel.dk/linux: (221 commits)
  block: partitions: only define function mac_fix_string for CONFIG_PPC_PMAC
  block/swim: Convert to platform remove callback returning void
  cdrom: gdrom: Convert to platform remove callback returning void
  block: remove disk_stack_limits
  md: remove mddev->queue
  md: don't initialize queue limits
  md/raid10: use the atomic queue limit update APIs
  md/raid5: use the atomic queue limit update APIs
  md/raid1: use the atomic queue limit update APIs
  md/raid0: use the atomic queue limit update APIs
  md: add queue limit helpers
  md: add a mddev_is_dm helper
  md: add a mddev_add_trace_msg helper
  md: add a mddev_trace_remap helper
  bcache: move calculation of stripe_size and io_opt into bcache_device_init
  virtio_blk: Do not use disk_set_max_open/active_zones()
  aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts
  block: move capacity validation to blkpg_do_ioctl()
  block: prevent division by zero in blk_rq_stat_sum()
  drbd: atomically update queue limits in drbd_reconsider_queue_parameters
  ...
 2024-03-11 11:43:44 -07:00
Rafael J. Wysocki
7874b581c7 Merge branch 'pm-runtime' 
Merge changes related to the runtime power management of devices for
6.9-rc1:

 - Simplify pm_runtime_get_if_active() usage and add a replacement for
   pm_runtime_put_autosuspend() (Sakari Ailus).

 - Add a tracepoint for runtime_status changes tracking (Vilas Bhat).

 - Fix section title markdown in the runtime PM documentation (Yiwei
   Lin).

* pm-runtime:
  Documentation: PM: Fix runtime_pm.rst markdown syntax
  PM: runtime: add tracepoint for runtime_status changes
  PM: runtime: Add pm_runtime_put_autosuspend() replacement
  PM: runtime: Simplify pm_runtime_get_if_active() usage
 2024-03-11 15:21:00 +01:00
Rafael J. Wysocki
86b84bdd5c Merge branch 'pm-sleep' 
Merge changes related to system-wide power management for 6.9-rc1:

 - Fix and clean up system suspend statistics collection (Rafael
   Wysocki).

 - Simplify device suspend and resume handling in the power management
   core code (Rafael Wysocki).

 - Add support for LZ4 compression algorithm to the hibernation image
   creation and loading code (Nikhil V).

 - Fix PCI hibernation support description (Yiwei Lin).

 - Make hibernation take set_memory_ro() return values into account as
   appropriate (Christophe Leroy).

 - Set mem_sleep_current during kernel command line setup to avoid an
   ordering issue with handling it (Maulik Shah).

 - Fix wake IRQs handling when pm_runtime_force_suspend() is used as a
   driver's system suspend callback (Qingliang Li).

* pm-sleep: (21 commits)
  PM: sleep: wakeirq: fix wake irq warning in system suspend
  PM: suspend: Set mem_sleep_current during kernel command line setup
  PM: hibernate: Don't ignore return from set_memory_ro()
  PM: hibernate: Support to select compression algorithm
  Documentation: PM: Fix PCI hibernation support description
  PM: hibernate: Add support for LZ4 compression for hibernation
  PM: hibernate: Move to crypto APIs for LZO compression
  PM: hibernate: Rename lzo* to make it generic
  PM: sleep: Call dpm_async_fn() directly in each suspend phase
  PM: sleep: Move devices to new lists earlier in each suspend phase
  PM: sleep: Move some assignments from under a lock
  PM: sleep: stats: Log errors right after running suspend callbacks
  PM: sleep: stats: Use locking in dpm_save_failed_dev()
  PM: sleep: stats: Call dpm_save_failed_step() at most once per phase
  PM: sleep: stats: Define suspend_stats next to the code using it
  PM: sleep: stats: Use unsigned int for success and failure counters
  PM: sleep: stats: Use an array of step failure counters
  PM: sleep: stats: Use array of suspend step names
  PM: sleep: Relocate two device PM core functions
  PM: sleep: Simplify dpm_suspended_list walk in dpm_resume()
  ...
 2024-03-11 15:10:57 +01:00
Nícolas F. R. A. Prado
6aeb8850e0 device: core: Log warning for devices pending deferred probe on timeout 
Once the deferred probe timeout has elapsed it is very likely that the
devices that are still deferring probe won't ever be probed. Therefore
log the defer probe pending reason at the warning level instead to bring
attention to the issue.

Signed-off-by: "Nícolas F. R. A. Prado" <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240305-device-probe-error-v1-3-a06d8722bf19@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-03-07 22:10:31 +00:00
Nícolas F. R. A. Prado
448af2d288 driver: core: Use dev_* instead of pr_* so device metadata is added 
Use the dev_* instead of the pr_* functions to log the status of device
probe so that the log message gets the device metadata attached to it.

Signed-off-by: "Nícolas F. R. A. Prado" <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240305-device-probe-error-v1-2-a06d8722bf19@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-03-07 22:10:31 +00:00
Nícolas F. R. A. Prado
32de4b4f9d driver: core: Log probe failure as error and with device metadata 
Drivers can return -ENODEV or -ENXIO from their probe to reject a device
match, and return -EPROBE_DEFER if probe should be retried. Any other
error code is not expected during normal behavior and indicates an
issue occurred, so it should be logged at the error level.

Also make use of the device variant, dev_err(), so that the device
metadata is attached to the log message.

Signed-off-by: "Nícolas F. R. A. Prado" <nfraprado@collabora.com>
Link: https://lore.kernel.org/r/20240305-device-probe-error-v1-1-a06d8722bf19@collabora.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-03-07 22:10:31 +00:00
Saravana Kannan
b7e1241d8f driver core: Add FWLINK_FLAG_IGNORE to completely ignore a fwnode link 
A fwnode link between specific supplier-consumer fwnodes can be added
multiple times for multiple reasons. If that dependency doesn't exist,
deleting the fwnode link once doesn't guarantee that it won't get created
again.

So, add FWLINK_FLAG_IGNORE flag to mark a fwnode link as one that needs to
be completely ignored. Since a fwnode link's flags is an OR of all the
flags passed to all the fwnode_link_add() calls to create that specific
fwnode link, the FWLINK_FLAG_IGNORE flag is preserved and can be used to
mark a fwnode link as on that need to be completely ignored until it is
deleted.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240305050458.1400667-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-03-07 22:10:01 +00:00
Saravana Kannan
75cde56a5b driver core: Adds flags param to fwnode_link_add() 
Allow the callers to set fwnode link flags when adding fwnode links.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240305050458.1400667-2-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-03-07 22:10:01 +00:00
Andy Shevchenko
4dc3d612ee device property: Don't use "proxy" headers 
Update header inclusions to follow IWYU (Include What You Use)
principle.

Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240301180138.271590-5-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-03-07 22:07:26 +00:00
Andy Shevchenko
1c4002aeab driver core: Move fw_devlink stuff to where it belongs 
A few APIs, i.e. fwnode_is_ancestor_of(), fwnode_get_next_parent_dev(),
and get_dev_from_fwnode(), that belong specifically to the fw_devlink APIs,
may be static, but they are not.

Resolve this mess by moving them to the driver/base/core where the all
users are being resided and make static.

No functional changes intended.

Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20240301180138.271590-3-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-03-07 22:07:22 +00:00
Mukesh Ojha
1fe6e4f0b0 firmware_loader: Suppress warning on FW_OPT_NO_WARN flag 
Some of the warnings are still being printed even if FW_OPT_NO_WARN
is passed for some of the function e.g., firmware_request_nowarn().
Fix it by adding a check for FW_OPT_NO_WARN before printing the warning.

Signed-off-by: Mukesh Ojha <quic_mojha@quicinc.com>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Link: https://lore.kernel.org/r/20240219163954.7719-1-quic_mojha@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-03-07 22:05:09 +00:00
Christophe JAILLET
822d66c45e platform-msi: Remove usage of the deprecated ida_simple_xx() API 
ida_alloc() and ida_free() should be preferred to the deprecated
ida_simple_get() and ida_simple_remove().

Note that the upper limit of ida_simple_get() is exclusive, but the one of
ida_alloc_max() is inclusive. So a -1 has been added when needed.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/fd87836efa894aee0ae43e767369c85a2ee7e1ff.1705733916.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2024-03-07 22:02:04 +00:00
Ricardo B. Marliere
f8c7511db0 block: make block_class constant 
Since commit 43a7206b09 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the block_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20240305-class_cleanup-block-v1-1-130bb27b9c72@marliere.net
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2024-03-06 08:29:20 -07:00