<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-stable.git/drivers/acpi, branch v6.6.63</title>
<subtitle>Linux kernel stable tree</subtitle>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/'/>
<entry>
<title>ACPI: CPPC: Make rmw_lock a raw_spin_lock</title>
<updated>2024-11-08T15:28:20+00:00</updated>
<author>
<name>Pierre Gondois</name>
<email>pierre.gondois@arm.com</email>
</author>
<published>2024-10-28T12:56:56+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=0eb2b767c42fac61ab23c4063eb456baa4c2c262'/>
<id>0eb2b767c42fac61ab23c4063eb456baa4c2c262</id>
<content type='text'>
[ Upstream commit 1c10941e34c5fdc0357e46a25bd130d9cf40b925 ]

The following BUG was triggered:

=============================
[ BUG: Invalid wait context ]
6.12.0-rc2-XXX #406 Not tainted
-----------------------------
kworker/1:1/62 is trying to lock:
ffffff8801593030 (&amp;cpc_ptr-&gt;rmw_lock){+.+.}-{3:3}, at: cpc_write+0xcc/0x370
other info that might help us debug this:
context-{5:5}
2 locks held by kworker/1:1/62:
  #0: ffffff897ef5ec98 (&amp;rq-&gt;__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2c/0x50
  #1: ffffff880154e238 (&amp;sg_policy-&gt;update_lock){....}-{2:2}, at: sugov_update_shared+0x3c/0x280
stack backtrace:
CPU: 1 UID: 0 PID: 62 Comm: kworker/1:1 Not tainted 6.12.0-rc2-g9654bd3e8806 #406
Workqueue:  0x0 (events)
Call trace:
  dump_backtrace+0xa4/0x130
  show_stack+0x20/0x38
  dump_stack_lvl+0x90/0xd0
  dump_stack+0x18/0x28
  __lock_acquire+0x480/0x1ad8
  lock_acquire+0x114/0x310
  _raw_spin_lock+0x50/0x70
  cpc_write+0xcc/0x370
  cppc_set_perf+0xa0/0x3a8
  cppc_cpufreq_fast_switch+0x40/0xc0
  cpufreq_driver_fast_switch+0x4c/0x218
  sugov_update_shared+0x234/0x280
  update_load_avg+0x6ec/0x7b8
  dequeue_entities+0x108/0x830
  dequeue_task_fair+0x58/0x408
  __schedule+0x4f0/0x1070
  schedule+0x54/0x130
  worker_thread+0xc0/0x2e8
  kthread+0x130/0x148
  ret_from_fork+0x10/0x20

sugov_update_shared() locks a raw_spinlock while cpc_write() locks a
spinlock.

To have a correct wait-type order, update rmw_lock to a raw spinlock and
ensure that interrupts will be disabled on the CPU holding it.

Fixes: 60949b7b8054 ("ACPI: CPPC: Fix MASK_VAL() usage")
Signed-off-by: Pierre Gondois &lt;pierre.gondois@arm.com&gt;
Link: https://patch.msgid.link/20241028125657.1271512-1-pierre.gondois@arm.com
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 1c10941e34c5fdc0357e46a25bd130d9cf40b925 ]

The following BUG was triggered:

=============================
[ BUG: Invalid wait context ]
6.12.0-rc2-XXX #406 Not tainted
-----------------------------
kworker/1:1/62 is trying to lock:
ffffff8801593030 (&amp;cpc_ptr-&gt;rmw_lock){+.+.}-{3:3}, at: cpc_write+0xcc/0x370
other info that might help us debug this:
context-{5:5}
2 locks held by kworker/1:1/62:
  #0: ffffff897ef5ec98 (&amp;rq-&gt;__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2c/0x50
  #1: ffffff880154e238 (&amp;sg_policy-&gt;update_lock){....}-{2:2}, at: sugov_update_shared+0x3c/0x280
stack backtrace:
CPU: 1 UID: 0 PID: 62 Comm: kworker/1:1 Not tainted 6.12.0-rc2-g9654bd3e8806 #406
Workqueue:  0x0 (events)
Call trace:
  dump_backtrace+0xa4/0x130
  show_stack+0x20/0x38
  dump_stack_lvl+0x90/0xd0
  dump_stack+0x18/0x28
  __lock_acquire+0x480/0x1ad8
  lock_acquire+0x114/0x310
  _raw_spin_lock+0x50/0x70
  cpc_write+0xcc/0x370
  cppc_set_perf+0xa0/0x3a8
  cppc_cpufreq_fast_switch+0x40/0xc0
  cpufreq_driver_fast_switch+0x4c/0x218
  sugov_update_shared+0x234/0x280
  update_load_avg+0x6ec/0x7b8
  dequeue_entities+0x108/0x830
  dequeue_task_fair+0x58/0x408
  __schedule+0x4f0/0x1070
  schedule+0x54/0x130
  worker_thread+0xc0/0x2e8
  kthread+0x130/0x148
  ret_from_fork+0x10/0x20

sugov_update_shared() locks a raw_spinlock while cpc_write() locks a
spinlock.

To have a correct wait-type order, update rmw_lock to a raw spinlock and
ensure that interrupts will be disabled on the CPU holding it.

Fixes: 60949b7b8054 ("ACPI: CPPC: Fix MASK_VAL() usage")
Signed-off-by: Pierre Gondois &lt;pierre.gondois@arm.com&gt;
Link: https://patch.msgid.link/20241028125657.1271512-1-pierre.gondois@arm.com
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: PRM: Clean up guid type in struct prm_handler_info</title>
<updated>2024-11-01T00:58:34+00:00</updated>
<author>
<name>Dan Carpenter</name>
<email>dan.carpenter@linaro.org</email>
</author>
<published>2024-10-24T08:07:15+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=38ca6fd426eae83959066fe57ce6911a72674b8e'/>
<id>38ca6fd426eae83959066fe57ce6911a72674b8e</id>
<content type='text'>
commit 3d1c651272cf1df8aac7d9b6d92d836d27bed50f upstream.

Clang 19 prints a warning when we pass &amp;th-&gt;guid to efi_pa_va_lookup():

drivers/acpi/prmt.c:156:29: error: passing 1-byte aligned argument to
4-byte aligned parameter 1 of 'efi_pa_va_lookup' may result in an
unaligned pointer access [-Werror,-Walign-mismatch]
  156 |                         (void *)efi_pa_va_lookup(&amp;th-&gt;guid, handler_info-&gt;handler_address);
      |                                                  ^

The problem is that efi_pa_va_lookup() takes a efi_guid_t and &amp;th-&gt;guid
is a regular guid_t.  The difference between the two types is the
alignment.  efi_guid_t is a typedef.

	typedef guid_t efi_guid_t __aligned(__alignof__(u32));

It's possible that this a bug in Clang 19.  Even though the alignment of
&amp;th-&gt;guid is not explicitly specified, it will still end up being aligned
at 4 or 8 bytes.

Anyway, as Ard points out, it's cleaner to change guid to efi_guid_t type
and that also makes the warning go away.

Fixes: 088984c8d54c ("ACPI: PRM: Find EFI_MEMORY_RUNTIME block for PRM handler and context")
Reported-by: Linux Kernel Functional Testing &lt;lkft@linaro.org&gt;
Suggested-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Signed-off-by: Dan Carpenter &lt;dan.carpenter@linaro.org&gt;
Tested-by: Paul E. McKenney &lt;paulmck@kernel.org&gt;
Acked-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Link: https://patch.msgid.link/3777d71b-9e19-45f4-be4e-17bf4fa7a834@stanley.mountain
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 3d1c651272cf1df8aac7d9b6d92d836d27bed50f upstream.

Clang 19 prints a warning when we pass &amp;th-&gt;guid to efi_pa_va_lookup():

drivers/acpi/prmt.c:156:29: error: passing 1-byte aligned argument to
4-byte aligned parameter 1 of 'efi_pa_va_lookup' may result in an
unaligned pointer access [-Werror,-Walign-mismatch]
  156 |                         (void *)efi_pa_va_lookup(&amp;th-&gt;guid, handler_info-&gt;handler_address);
      |                                                  ^

The problem is that efi_pa_va_lookup() takes a efi_guid_t and &amp;th-&gt;guid
is a regular guid_t.  The difference between the two types is the
alignment.  efi_guid_t is a typedef.

	typedef guid_t efi_guid_t __aligned(__alignof__(u32));

It's possible that this a bug in Clang 19.  Even though the alignment of
&amp;th-&gt;guid is not explicitly specified, it will still end up being aligned
at 4 or 8 bytes.

Anyway, as Ard points out, it's cleaner to change guid to efi_guid_t type
and that also makes the warning go away.

Fixes: 088984c8d54c ("ACPI: PRM: Find EFI_MEMORY_RUNTIME block for PRM handler and context")
Reported-by: Linux Kernel Functional Testing &lt;lkft@linaro.org&gt;
Suggested-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Signed-off-by: Dan Carpenter &lt;dan.carpenter@linaro.org&gt;
Tested-by: Paul E. McKenney &lt;paulmck@kernel.org&gt;
Acked-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Link: https://patch.msgid.link/3777d71b-9e19-45f4-be4e-17bf4fa7a834@stanley.mountain
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: button: Add DMI quirk for Samsung Galaxy Book2 to fix initial lid detection issue</title>
<updated>2024-11-01T00:58:32+00:00</updated>
<author>
<name>Shubham Panwar</name>
<email>shubiisp8@gmail.com</email>
</author>
<published>2024-10-20T09:50:46+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=a299d415dd3788f7d82e4910dafd65426077e504'/>
<id>a299d415dd3788f7d82e4910dafd65426077e504</id>
<content type='text'>
commit 8fa73ee44daefc884c53a25158c25a4107eb5a94 upstream.

Add a DMI quirk for Samsung Galaxy Book2 to fix an initial lid state
detection issue.

The _LID device incorrectly returns the lid status as "closed" during
boot, causing the system to enter a suspend loop right after booting.

The quirk ensures that the correct lid state is reported initially,
preventing the system from immediately suspending after startup.  It
only addresses the initial lid state detection and ensures proper
system behavior upon boot.

Signed-off-by: Shubham Panwar &lt;shubiisp8@gmail.com&gt;
Link: https://patch.msgid.link/20241020095045.6036-2-shubiisp8@gmail.com
[ rjw: Changelog edits ]
Cc: All applicable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 8fa73ee44daefc884c53a25158c25a4107eb5a94 upstream.

Add a DMI quirk for Samsung Galaxy Book2 to fix an initial lid state
detection issue.

The _LID device incorrectly returns the lid status as "closed" during
boot, causing the system to enter a suspend loop right after booting.

The quirk ensures that the correct lid state is reported initially,
preventing the system from immediately suspending after startup.  It
only addresses the initial lid state detection and ensures proper
system behavior upon boot.

Signed-off-by: Shubham Panwar &lt;shubiisp8@gmail.com&gt;
Link: https://patch.msgid.link/20241020095045.6036-2-shubiisp8@gmail.com
[ rjw: Changelog edits ]
Cc: All applicable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: PRM: Find EFI_MEMORY_RUNTIME block for PRM handler and context</title>
<updated>2024-11-01T00:58:32+00:00</updated>
<author>
<name>Koba Ko</name>
<email>kobak@nvidia.com</email>
</author>
<published>2024-10-12T20:50:10+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=795b080d9aa127215a5baf088a22fa09341a0126'/>
<id>795b080d9aa127215a5baf088a22fa09341a0126</id>
<content type='text'>
commit 088984c8d54c0053fc4ae606981291d741c5924b upstream.

PRMT needs to find the correct type of block to translate the PA-VA
mapping for EFI runtime services.

The issue arises because the PRMT is finding a block of type
EFI_CONVENTIONAL_MEMORY, which is not appropriate for runtime services
as described in Section 2.2.2 (Runtime Services) of the UEFI
Specification [1]. Since the PRM handler is a type of runtime service,
this causes an exception when the PRM handler is called.

    [Firmware Bug]: Unable to handle paging request in EFI runtime service
    WARNING: CPU: 22 PID: 4330 at drivers/firmware/efi/runtime-wrappers.c:341
        __efi_queue_work+0x11c/0x170
    Call trace:

Let PRMT find a block with EFI_MEMORY_RUNTIME for PRM handler and PRM
context.

If no suitable block is found, a warning message will be printed, but
the procedure continues to manage the next PRM handler.

However, if the PRM handler is actually called without proper allocation,
it would result in a failure during error handling.

By using the correct memory types for runtime services, ensure that the
PRM handler and the context are properly mapped in the virtual address
space during runtime, preventing the paging request error.

The issue is really that only memory that has been remapped for runtime
by the firmware can be used by the PRM handler, and so the region needs
to have the EFI_MEMORY_RUNTIME attribute.

Link: https://uefi.org/sites/default/files/resources/UEFI_Spec_2_10_Aug29.pdf # [1]
Fixes: cefc7ca46235 ("ACPI: PRM: implement OperationRegion handler for the PlatformRtMechanism subtype")
Cc: All applicable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Koba Ko &lt;kobak@nvidia.com&gt;
Reviewed-by: Matthew R. Ochs &lt;mochs@nvidia.com&gt;
Reviewed-by: Zhang Rui &lt;rui.zhang@intel.com&gt;
Reviewed-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Link: https://patch.msgid.link/20241012205010.4165798-1-kobak@nvidia.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 088984c8d54c0053fc4ae606981291d741c5924b upstream.

PRMT needs to find the correct type of block to translate the PA-VA
mapping for EFI runtime services.

The issue arises because the PRMT is finding a block of type
EFI_CONVENTIONAL_MEMORY, which is not appropriate for runtime services
as described in Section 2.2.2 (Runtime Services) of the UEFI
Specification [1]. Since the PRM handler is a type of runtime service,
this causes an exception when the PRM handler is called.

    [Firmware Bug]: Unable to handle paging request in EFI runtime service
    WARNING: CPU: 22 PID: 4330 at drivers/firmware/efi/runtime-wrappers.c:341
        __efi_queue_work+0x11c/0x170
    Call trace:

Let PRMT find a block with EFI_MEMORY_RUNTIME for PRM handler and PRM
context.

If no suitable block is found, a warning message will be printed, but
the procedure continues to manage the next PRM handler.

However, if the PRM handler is actually called without proper allocation,
it would result in a failure during error handling.

By using the correct memory types for runtime services, ensure that the
PRM handler and the context are properly mapped in the virtual address
space during runtime, preventing the paging request error.

The issue is really that only memory that has been remapped for runtime
by the firmware can be used by the PRM handler, and so the region needs
to have the EFI_MEMORY_RUNTIME attribute.

Link: https://uefi.org/sites/default/files/resources/UEFI_Spec_2_10_Aug29.pdf # [1]
Fixes: cefc7ca46235 ("ACPI: PRM: implement OperationRegion handler for the PlatformRtMechanism subtype")
Cc: All applicable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Koba Ko &lt;kobak@nvidia.com&gt;
Reviewed-by: Matthew R. Ochs &lt;mochs@nvidia.com&gt;
Reviewed-by: Zhang Rui &lt;rui.zhang@intel.com&gt;
Reviewed-by: Ard Biesheuvel &lt;ardb@kernel.org&gt;
Link: https://patch.msgid.link/20241012205010.4165798-1-kobak@nvidia.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: resource: Add LG 16T90SP to irq1_level_low_skip_override[]</title>
<updated>2024-11-01T00:58:32+00:00</updated>
<author>
<name>Christian Heusel</name>
<email>christian@heusel.eu</email>
</author>
<published>2024-10-17T11:16:26+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=bdaab141edb6fcd052ee0cd0942f129f35d258c6'/>
<id>bdaab141edb6fcd052ee0cd0942f129f35d258c6</id>
<content type='text'>
commit 53f1a907d36fb3aa02a4d34073bcec25823a6c74 upstream.

The LG Gram Pro 16 2-in-1 (2024) the 16T90SP has its keybopard IRQ (1)
described as ActiveLow in the DSDT, which the kernel overrides to EdgeHigh
which breaks the keyboard.

Add the 16T90SP to the irq1_level_low_skip_override[] quirk table to fix
this.

Reported-by: Dirk Holten &lt;dirk.holten@gmx.de&gt;
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219382
Cc: All applicable &lt;stable@vger.kernel.org&gt;
Suggested-by: Dirk Holten &lt;dirk.holten@gmx.de&gt;
Signed-off-by: Christian Heusel &lt;christian@heusel.eu&gt;
Link: https://patch.msgid.link/20241017-lg-gram-pro-keyboard-v2-1-7c8fbf6ff718@heusel.eu
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 53f1a907d36fb3aa02a4d34073bcec25823a6c74 upstream.

The LG Gram Pro 16 2-in-1 (2024) the 16T90SP has its keybopard IRQ (1)
described as ActiveLow in the DSDT, which the kernel overrides to EdgeHigh
which breaks the keyboard.

Add the 16T90SP to the irq1_level_low_skip_override[] quirk table to fix
this.

Reported-by: Dirk Holten &lt;dirk.holten@gmx.de&gt;
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=219382
Cc: All applicable &lt;stable@vger.kernel.org&gt;
Suggested-by: Dirk Holten &lt;dirk.holten@gmx.de&gt;
Signed-off-by: Christian Heusel &lt;christian@heusel.eu&gt;
Link: https://patch.msgid.link/20241017-lg-gram-pro-keyboard-v2-1-7c8fbf6ff718@heusel.eu
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>cpufreq: CPPC: fix perf_to_khz/khz_to_perf conversion exception</title>
<updated>2024-11-01T00:58:32+00:00</updated>
<author>
<name>liwei</name>
<email>liwei728@huawei.com</email>
</author>
<published>2024-10-24T02:29:52+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=2f2684c7903e8b5ca256c267e6dff6ea3164a3bc'/>
<id>2f2684c7903e8b5ca256c267e6dff6ea3164a3bc</id>
<content type='text'>
[ Upstream commit d93df29bdab133b85e94b3c328e7fe26a0ebd56c ]

When the nominal_freq recorded by the kernel is equal to the lowest_freq,
and the frequency adjustment operation is triggered externally, there is
a logic error in cppc_perf_to_khz()/cppc_khz_to_perf(), resulting in perf
and khz conversion errors.

Fix this by adding a branch processing logic when nominal_freq is equal
to lowest_freq.

Fixes: ec1c7ad47664 ("cpufreq: CPPC: Fix performance/frequency conversion")
Signed-off-by: liwei &lt;liwei728@huawei.com&gt;
Acked-by: Viresh Kumar &lt;viresh.kumar@linaro.org&gt;
Link: https://patch.msgid.link/20241024022952.2627694-1-liwei728@huawei.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit d93df29bdab133b85e94b3c328e7fe26a0ebd56c ]

When the nominal_freq recorded by the kernel is equal to the lowest_freq,
and the frequency adjustment operation is triggered externally, there is
a logic error in cppc_perf_to_khz()/cppc_khz_to_perf(), resulting in perf
and khz conversion errors.

Fix this by adding a branch processing logic when nominal_freq is equal
to lowest_freq.

Fixes: ec1c7ad47664 ("cpufreq: CPPC: Fix performance/frequency conversion")
Signed-off-by: liwei &lt;liwei728@huawei.com&gt;
Acked-by: Viresh Kumar &lt;viresh.kumar@linaro.org&gt;
Link: https://patch.msgid.link/20241024022952.2627694-1-liwei728@huawei.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>cpufreq/cppc: Move and rename cppc_cpufreq_{perf_to_khz|khz_to_perf}()</title>
<updated>2024-11-01T00:58:32+00:00</updated>
<author>
<name>Vincent Guittot</name>
<email>vincent.guittot@linaro.org</email>
</author>
<published>2023-12-11T10:48:53+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=33e89c16cea0882bb05c585fa13236b730dd0efa'/>
<id>33e89c16cea0882bb05c585fa13236b730dd0efa</id>
<content type='text'>
[ Upstream commit 50b813b147e9eb6546a1fc49d4e703e6d23691f2 ]

Move and rename cppc_cpufreq_perf_to_khz() and cppc_cpufreq_khz_to_perf() to
use them outside cppc_cpufreq in topology_init_cpu_capacity_cppc().

Modify the interface to use struct cppc_perf_caps *caps instead of
struct cppc_cpudata *cpu_data as we only use the fields of cppc_perf_caps.

cppc_cpufreq was converting the lowest and nominal freq from MHz to kHz
before using them. We move this conversion inside cppc_perf_to_khz and
cppc_khz_to_perf to make them generic and usable outside cppc_cpufreq.

No functional change

Signed-off-by: Vincent Guittot &lt;vincent.guittot@linaro.org&gt;
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
Tested-by: Pierre Gondois &lt;pierre.gondois@arm.com&gt;
Acked-by: Rafael J. Wysocki &lt;rafael@kernel.org&gt;
Acked-by: Viresh Kumar &lt;viresh.kumar@linaro.org&gt;
Link: https://lore.kernel.org/r/20231211104855.558096-6-vincent.guittot@linaro.org
Stable-dep-of: d93df29bdab1 ("cpufreq: CPPC: fix perf_to_khz/khz_to_perf conversion exception")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 50b813b147e9eb6546a1fc49d4e703e6d23691f2 ]

Move and rename cppc_cpufreq_perf_to_khz() and cppc_cpufreq_khz_to_perf() to
use them outside cppc_cpufreq in topology_init_cpu_capacity_cppc().

Modify the interface to use struct cppc_perf_caps *caps instead of
struct cppc_cpudata *cpu_data as we only use the fields of cppc_perf_caps.

cppc_cpufreq was converting the lowest and nominal freq from MHz to kHz
before using them. We move this conversion inside cppc_perf_to_khz and
cppc_khz_to_perf to make them generic and usable outside cppc_cpufreq.

No functional change

Signed-off-by: Vincent Guittot &lt;vincent.guittot@linaro.org&gt;
Signed-off-by: Ingo Molnar &lt;mingo@kernel.org&gt;
Tested-by: Pierre Gondois &lt;pierre.gondois@arm.com&gt;
Acked-by: Rafael J. Wysocki &lt;rafael@kernel.org&gt;
Acked-by: Viresh Kumar &lt;viresh.kumar@linaro.org&gt;
Link: https://lore.kernel.org/r/20231211104855.558096-6-vincent.guittot@linaro.org
Stable-dep-of: d93df29bdab1 ("cpufreq: CPPC: fix perf_to_khz/khz_to_perf conversion exception")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: battery: Fix possible crash when unregistering a battery hook</title>
<updated>2024-10-10T09:58:06+00:00</updated>
<author>
<name>Armin Wolf</name>
<email>W_Armin@gmx.de</email>
</author>
<published>2024-10-01T21:28:34+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=ce31847f109c3a5b2abdd19d7bcaafaacfde53de'/>
<id>ce31847f109c3a5b2abdd19d7bcaafaacfde53de</id>
<content type='text'>
[ Upstream commit 76959aff14a0012ad6b984ec7686d163deccdc16 ]

When a battery hook returns an error when adding a new battery, then
the battery hook is automatically unregistered.
However the battery hook provider cannot know that, so it will later
call battery_hook_unregister() on the already unregistered battery
hook, resulting in a crash.

Fix this by using the list head to mark already unregistered battery
hooks as already being unregistered so that they can be ignored by
battery_hook_unregister().

Fixes: fa93854f7a7e ("battery: Add the battery hooking API")
Signed-off-by: Armin Wolf &lt;W_Armin@gmx.de&gt;
Link: https://patch.msgid.link/20241001212835.341788-3-W_Armin@gmx.de
Cc: All applicable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 76959aff14a0012ad6b984ec7686d163deccdc16 ]

When a battery hook returns an error when adding a new battery, then
the battery hook is automatically unregistered.
However the battery hook provider cannot know that, so it will later
call battery_hook_unregister() on the already unregistered battery
hook, resulting in a crash.

Fix this by using the list head to mark already unregistered battery
hooks as already being unregistered so that they can be ignored by
battery_hook_unregister().

Fixes: fa93854f7a7e ("battery: Add the battery hooking API")
Signed-off-by: Armin Wolf &lt;W_Armin@gmx.de&gt;
Link: https://patch.msgid.link/20241001212835.341788-3-W_Armin@gmx.de
Cc: All applicable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: battery: Simplify battery hook locking</title>
<updated>2024-10-10T09:58:06+00:00</updated>
<author>
<name>Armin Wolf</name>
<email>W_Armin@gmx.de</email>
</author>
<published>2024-10-01T21:28:33+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=2deeb3c748dac6efea25395ed107a791c72e7c04'/>
<id>2deeb3c748dac6efea25395ed107a791c72e7c04</id>
<content type='text'>
[ Upstream commit 86309cbed26139e1caae7629dcca1027d9a28e75 ]

Move the conditional locking from __battery_hook_unregister()
into battery_hook_unregister() and rename the low-level function
to simplify the locking during battery hook removal.

Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Reviewed-by: Pali Rohár &lt;pali@kernel.org&gt;
Signed-off-by: Armin Wolf &lt;W_Armin@gmx.de&gt;
Link: https://patch.msgid.link/20241001212835.341788-2-W_Armin@gmx.de
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Stable-dep-of: 76959aff14a0 ("ACPI: battery: Fix possible crash when unregistering a battery hook")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
[ Upstream commit 86309cbed26139e1caae7629dcca1027d9a28e75 ]

Move the conditional locking from __battery_hook_unregister()
into battery_hook_unregister() and rename the low-level function
to simplify the locking during battery hook removal.

Reviewed-by: Ilpo Järvinen &lt;ilpo.jarvinen@linux.intel.com&gt;
Reviewed-by: Pali Rohár &lt;pali@kernel.org&gt;
Signed-off-by: Armin Wolf &lt;W_Armin@gmx.de&gt;
Link: https://patch.msgid.link/20241001212835.341788-2-W_Armin@gmx.de
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Stable-dep-of: 76959aff14a0 ("ACPI: battery: Fix possible crash when unregistering a battery hook")
Signed-off-by: Sasha Levin &lt;sashal@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>ACPI: resource: Add Asus ExpertBook B2502CVA to irq1_level_low_skip_override[]</title>
<updated>2024-10-10T09:57:58+00:00</updated>
<author>
<name>Hans de Goede</name>
<email>hdegoede@redhat.com</email>
</author>
<published>2024-09-27T14:16:06+00:00</published>
<link rel='alternate' type='text/html' href='https://git.tavy.me/linux-stable.git/commit/?id=d7674ed0dcd4d266e7cee8b768a02d60d0b8ccb6'/>
<id>d7674ed0dcd4d266e7cee8b768a02d60d0b8ccb6</id>
<content type='text'>
commit 056301e7c7c886f96d799edd36f3406cc30e1822 upstream.

Like other Asus ExpertBook models the B2502CVA has its keybopard IRQ (1)
described as ActiveLow in the DSDT, which the kernel overrides to EdgeHigh
which breaks the keyboard.

Add the B2502CVA to the irq1_level_low_skip_override[] quirk table to fix
this.

Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217760
Cc: All applicable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Link: https://patch.msgid.link/20240927141606.66826-4-hdegoede@redhat.com
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
commit 056301e7c7c886f96d799edd36f3406cc30e1822 upstream.

Like other Asus ExpertBook models the B2502CVA has its keybopard IRQ (1)
described as ActiveLow in the DSDT, which the kernel overrides to EdgeHigh
which breaks the keyboard.

Add the B2502CVA to the irq1_level_low_skip_override[] quirk table to fix
this.

Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217760
Cc: All applicable &lt;stable@vger.kernel.org&gt;
Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Link: https://patch.msgid.link/20240927141606.66826-4-hdegoede@redhat.com
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
</feed>
