There are multiple locations in the kernel where a struct fwnode_handle
is initialized. Add fwnode_init() so that we have one way of
initializing a fwnode_handle.
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NSaravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20201121020232.908850-8-saravanak@google.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

Commit 78a5b53e ("Input: soc_button_array - work around DSDTs which
modify the irqflags") adds a workaround for DSDTs with a _LID method
which play tricks with the irqflags, assuming that the OS is using
an irq-type of IRQ_TYPE_LEVEL_LOW.

Now that this workaround is in place, we no longer need to disable the
lid functionality on the Acer SW5-012.

Fixes: 78a5b53e ("Input: soc_button_array - work around DSDTs which modify the irqflags")
Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Initial value of rc is '-ENXIO', and we should
use the initial value to check it.
Signed-off-by: NZhang Qilong <zhangqilong3@huawei.com>
Reviewed-by: NPankaj Gupta <pankaj.gupta.linux@gmail.com>
Reviewed-by: NVishal Verma <vishal.l.verma@intel.com>
[ rjw: Subject edit ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

gcc points out a type mismatch:

drivers/acpi/dock.c: In function 'hot_remove_dock_devices':
drivers/acpi/dock.c:234:53: warning: implicit conversion from 'enum <anonymous>' to 'enum dock_callback_type' [-Wenum-conversion]
  234 |   dock_hotplug_event(dd, ACPI_NOTIFY_EJECT_REQUEST, false);

This is harmless because 'false' still has the correct numeric value,
but passing DOCK_CALL_HANDLER documents better what is going on
and avoids the warning.

Fixes: 37f90877 ("ACPI / dock: Walk list in reverse order during removal of devices")
Fixes: f09ce741 ("ACPI / dock / PCI: Drop ACPI dock notifier chain")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

A break following a return statement is pointless, so drop all of
the breaks following return statements from this file.
Signed-off-by: NTom Rix <trix@redhat.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Type casts needed on 32-bit systems are missing in two places in the
GPE register access code, so add them.

Fixes: 7a8379eb ("ACPICA: Add support for using logical addresses of GPE blocks")
Reported-and-tested-by: NMatthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

A previous commit changed the notification mode from true/false to an
int, allowing notify-no, notify-yes, or signal-notify. This was
backwards compatible in the sense that any existing true/false user
would translate to either 0 (on notification sent) or 1, the latter
which mapped to TWA_RESUME. TWA_SIGNAL was assigned a value of 2.

Clean this up properly, and define a proper enum for the notification
mode. Now we have:

- TWA_NONE. This is 0, same as before the original change, meaning no
  notification requested.
- TWA_RESUME. This is 1, same as before the original change, meaning
  that we use TIF_NOTIFY_RESUME.
- TWA_SIGNAL. This uses TIF_SIGPENDING/JOBCTL_TASK_WORK for the
  notification.

Clean up all the callers, switching their 0/1/false/true to using the
appropriate TWA_* mode for notifications.

Fixes: e91b4816 ("task_work: teach task_work_add() to do signal_wake_up()")
Reviewed-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NJens Axboe <axboe@kernel.dk>

We soon want to pass flags, e.g., to mark added System RAM resources.
mergeable.  Prepare for that.

This patch is based on a similar patch by Oscar Salvador:

https://lkml.kernel.org/r/20190625075227.15193-3-osalvador@suse.deSigned-off-by: NDavid Hildenbrand <david@redhat.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Reviewed-by: Juergen Gross <jgross@suse.com> # Xen related part
Reviewed-by: NPankaj Gupta <pankaj.gupta.linux@gmail.com>
Acked-by: NWei Liu <wei.liu@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: Baoquan He <bhe@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Len Brown <lenb@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Stephen Hemminger <sthemmin@microsoft.com>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: "Oliver O'Halloran" <oohall@gmail.com>
Cc: Pingfan Liu <kernelfans@gmail.com>
Cc: Nathan Lynch <nathanl@linux.ibm.com>
Cc: Libor Pechacek <lpechacek@suse.cz>
Cc: Anton Blanchard <anton@ozlabs.org>
Cc: Leonardo Bras <leobras.c@gmail.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: Julien Grall <julien@xen.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Roger Pau Monné <roger.pau@citrix.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Wei Yang <richardw.yang@linux.intel.com>
Link: https://lkml.kernel.org/r/20200911103459.10306-5-david@redhat.comSigned-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Add a Kconfig menu for Intel DPTF (Dynamic Platform and Thermal
Framework), put both the existing participant drivers in it and set
them to be built as modules by default.

While at it, do a few assorted cleanups for a good measure.
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: NBorislav Petkov <bp@suse.de>

Change the names of DPTF participant drivers to adhere to the
sysfs file naming conventions (no spaces present in the name in
particular).

Fixes: 2ce6324e ("ACPI: DPTF: Add PCH FIVR participant driver")
Fixes: 6256ebd5 ("ACPI / DPTF: Add DPTF power participant driver")
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: NSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: NBorislav Petkov <bp@suse.de>

ACPI 6.3 Errata A no longer allows _UID to return a string except for
Itanium (for historical reasons) as stated in section 5.2.12:

"From ACPI Specification 6.3 onward, all processor objects for all
architectures except Itanium must now use Device() objects with an
_HID of ACPI0007, and use only integer _UID values."

Therefore, the "we don't handle string _UIDs yet" comment, which
implies a missing feature, is redundant, so drop it.
Signed-off-by: NAlex Hung <alex.hung@canonical.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

According to the ACPI spec, "The system must reset immediately following
the write to the ACPI RESET_REG register.", but there are cases that the
system does not follow this and results in racing with the subsequetial
reboot mechanism, which brings unexpected behavior.

Fix this by adding a 15ms delay after writing to the ACPI RESET_REG.
Reported-by: NGhorai, Sukumar <sukumar.ghorai@intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>
[ rjw: Edit comment in the code and subject ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

If ACPI is disabled then loading the acpi_dbg module will result in the
following splat when lock debugging is enabled.

  DEBUG_LOCKS_WARN_ON(lock->magic != lock)
  WARNING: CPU: 0 PID: 1 at kernel/locking/mutex.c:938 __mutex_lock+0xa10/0x1290
  Kernel panic - not syncing: panic_on_warn set ...
  CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.9.0-rc8+ #103
  Hardware name: linux,dummy-virt (DT)
  Call trace:
   dump_backtrace+0x0/0x4d8
   show_stack+0x34/0x48
   dump_stack+0x174/0x1f8
   panic+0x360/0x7a0
   __warn+0x244/0x2ec
   report_bug+0x240/0x398
   bug_handler+0x50/0xc0
   call_break_hook+0x160/0x1d8
   brk_handler+0x30/0xc0
   do_debug_exception+0x184/0x340
   el1_dbg+0x48/0xb0
   el1_sync_handler+0x170/0x1c8
   el1_sync+0x80/0x100
   __mutex_lock+0xa10/0x1290
   mutex_lock_nested+0x6c/0xc0
   acpi_register_debugger+0x40/0x88
   acpi_aml_init+0xc4/0x114
   do_one_initcall+0x24c/0xb10
   kernel_init_freeable+0x690/0x728
   kernel_init+0x20/0x1e8
   ret_from_fork+0x10/0x18

This is because acpi_debugger.lock has not been initialized as
acpi_debugger_init() is not called when ACPI is disabled.  Fail module
loading to avoid this and any subsequent problems that might arise by
trying to debug AML when ACPI is disabled.

Fixes: 8cfb0cdf ("ACPI / debugger: Add IO interface to access debugger functionalities")
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NJamie Iles <jamie@nuviainc.com>
Cc: 4.10+ <stable@vger.kernel.org> # 4.10+
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

In preparation for exposing "Soft Reserved" memory ranges without an HMAT,
move the hmem device registration to its own compilation unit and make the
implementation generic.

The generic implementation drops usage acpi_map_pxm_to_online_node() that
was translating ACPI proximity domain values and instead relies on
numa_map_to_online_node() to determine the numa node for the device.

[joao.m.martins@oracle.com: CONFIG_DEV_DAX_HMEM_DEVICES should depend on CONFIG_DAX=y]
  Link: https://lkml.kernel.org/r/8f34727f-ec2d-9395-cb18-969ec8a5d0d4@oracle.comSigned-off-by: NDan Williams <dan.j.williams@intel.com>
Signed-off-by: NJoao Martins <joao.m.martins@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brice Goglin <Brice.Goglin@inria.fr>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: David Hildenbrand <david@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Jia He <justin.he@arm.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Cc: Will Deacon <will@kernel.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Hulk Robot <hulkci@huawei.com>
Cc: Jason Yan <yanaijie@huawei.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Link: https://lkml.kernel.org/r/159643096584.4062302.5035370788475153738.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lore.kernel.org/r/158318761484.2216124.2049322072599482736.stgit@dwillia2-desk3.amr.corp.intel.comSigned-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Disable parsing of the HMAT for debug, to workaround broken platform
instances, or cases where it is otherwise not wanted.

[rdunlap@infradead.org: fix build when CONFIG_ACPI is not set]
  Link: https://lkml.kernel.org/r/70e5ee34-9809-a997-7b49-499e4be61307@infradead.orgSigned-off-by: NDan Williams <dan.j.williams@intel.com>
Signed-off-by: NRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Brice Goglin <Brice.Goglin@inria.fr>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: David Hildenbrand <david@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Jia He <justin.he@arm.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Cc: Will Deacon <will@kernel.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Hulk Robot <hulkci@huawei.com>
Cc: Jason Yan <yanaijie@huawei.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Link: https://lkml.kernel.org/r/159643095540.4062302.732962081968036212.stgit@dwillia2-desk3.amr.corp.intel.comSigned-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Patch series "device-dax: Support sub-dividing soft-reserved ranges", v5.

The device-dax facility allows an address range to be directly mapped
through a chardev, or optionally hotplugged to the core kernel page
allocator as System-RAM.  It is the mechanism for converting persistent
memory (pmem) to be used as another volatile memory pool i.e.  the current
Memory Tiering hot topic on linux-mm.

In the case of pmem the nvdimm-namespace-label mechanism can sub-divide
it, but that labeling mechanism is not available / applicable to
soft-reserved ("EFI specific purpose") memory [3].  This series provides a
sysfs-mechanism for the daxctl utility to enable provisioning of
volatile-soft-reserved memory ranges.

The motivations for this facility are:

1/ Allow performance differentiated memory ranges to be split between
   kernel-managed and directly-accessed use cases.

2/ Allow physical memory to be provisioned along performance relevant
   address boundaries. For example, divide a memory-side cache [4] along
   cache-color boundaries.

3/ Parcel out soft-reserved memory to VMs using device-dax as a security
   / permissions boundary [5]. Specifically I have seen people (ab)using
   memmap=nn!ss (mark System-RAM as Persistent Memory) just to get the
   device-dax interface on custom address ranges. A follow-on for the VM
   use case is to teach device-dax to dynamically allocate 'struct page' at
   runtime to reduce the duplication of 'struct page' space in both the
   guest and the host kernel for the same physical pages.

[2]: http://lore.kernel.org/r/20200713160837.13774-11-joao.m.martins@oracle.com
[3]: http://lore.kernel.org/r/157309097008.1579826.12818463304589384434.stgit@dwillia2-desk3.amr.corp.intel.com
[4]: http://lore.kernel.org/r/154899811738.3165233.12325692939590944259.stgit@dwillia2-desk3.amr.corp.intel.com
[5]: http://lore.kernel.org/r/20200110190313.17144-1-joao.m.martins@oracle.com

This patch (of 23):

In preparation for adding a new numa= option clean up the existing ones to
avoid ifdefs in numa_setup(), and provide feedback when the option is
numa=fake= option is invalid due to kernel config.  The same does not need
to be done for numa=noacpi, since the capability is already hard disabled
at compile-time.
Suggested-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: NDan Williams <dan.j.williams@intel.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brice Goglin <Brice.Goglin@inria.fr>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: David Hildenbrand <david@redhat.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Cc: Jason Gunthorpe <jgg@mellanox.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Cc: Jia He <justin.he@arm.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Wei Yang <richard.weiyang@linux.alibaba.com>
Cc: Will Deacon <will@kernel.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Hulk Robot <hulkci@huawei.com>
Cc: Jason Yan <yanaijie@huawei.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: kernel test robot <lkp@intel.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Link: https://lkml.kernel.org/r/160106109960.30709.7379926726669669398.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/159643094279.4062302.17779410714418721328.stgit@dwillia2-desk3.amr.corp.intel.com
Link: https://lkml.kernel.org/r/159643094925.4062302.14979872973043772305.stgit@dwillia2-desk3.amr.corp.intel.comSigned-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

ACPICA commit 02ffcba2af123a891eefbaed4d37780ba1e36ccc

Reported by: Zou Wei.

Link: https://github.com/acpica/acpica/commit/02ffcba2Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NErik Kaneda <erik.kaneda@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

This command will execute/evaluate all objects with a match to the
<NameSeg> argument.

ACPICA commit a1a32ec054f067d1617067e2bafb0a27a8728e07

Link: https://github.com/acpica/acpica/commit/a1a32ec0Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NErik Kaneda <erik.kaneda@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

This allows iASL to generate errors by passing exceptions that may be
encountered during string-to-integer conversions. The exceptions
point out invalid hex, decimal, and octal integers.

ACPICA commit e98b8c0a3d96fdabb167c0ef18a809b32ade3228

Link: https://github.com/acpica/acpica/commit/e98b8c0aSigned-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NErik Kaneda <erik.kaneda@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Affects run-time (kernel) ACPICA, iASL, and acpi_help. The "SMBus
Control Method Interface Specification, Version 1.0, December 10,
1999" containes predefined names: _SBA _SBI _SBR _SBT _SBW. This was
done outside of the ACPI specification. This commit adds support for
ACPICA to recognize these named objects as predefined named objects.

ACPICA commit 2fe13bd7ba9f97d3bf25488bf1bb1b2329427093

Link: https://github.com/acpica/acpica/commit/2fe13bd7Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NErik Kaneda <erik.kaneda@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

ACPICA commit 6648a6ac8410813bcfedb5c8345259dd155ea851

Fix spelling issues found using the codespell checker

Link: https://github.com/acpica/acpica/commit/6648a6acSigned-off-by: NColin Ian King <colin.king@canonical.com>
Signed-off-by: NBob Moore <robert.moore@intel.com>
Signed-off-by: NErik Kaneda <erik.kaneda@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

It turns out that in some cases there are EC events to flush in
acpi_ec_dispatch_gpe() even though the ec_no_wakeup kernel parameter
is set and the EC GPE is disabled while sleeping, so drop the
ec_no_wakeup check that prevents those events from being processed
from acpi_ec_dispatch_gpe().
Reported-by: NTodd Brandt <todd.e.brandt@linux.intel.com>
Cc: 5.4+ <stable@vger.kernel.org> # 5.4+
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Commit 607b9df6 ("ACPI: EC: PM: Avoid flushing EC work when EC
GPE is inactive") has been reported to cause some power button wakeup
events to be missed on some systems, so modify acpi_ec_dispatch_gpe()
to call acpi_ec_flush_work() unconditionally to effectively reverse
the changes made by that commit.

Also note that the problem which prompted commit 607b9df6 is not
reproducible any more on the affected machine.

Fixes: 607b9df6 ("ACPI: EC: PM: Avoid flushing EC work when EC GPE is inactive")
Reported-by: NRaymond Tan <raymond.tan@intel.com>
Cc: 5.4+ <stable@vger.kernel.org> # 5.4+
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Split out all the bits that are purely for dma_map_ops implementations
and related code into a new <linux/dma-map-ops.h> header so that they
don't get pulled into all the drivers.  That also means the architecture
specific <asm/dma-mapping.h> is not pulled in by <linux/dma-mapping.h>
any more, which leads to a missing includes that were pulled in by the
x86 or arm versions in a few not overly portable drivers.
Signed-off-by: NChristoph Hellwig <hch@lst.de>

The original intent of 84d3f6b7 was to delay evaluating lid state until
all drivers have been loaded, with input device being opened from userspace
serving as a signal for this condition. Let's ensure that state updates
happen even if userspace closed (or in the future inhibited) input device.

Note that if we go through suspend/resume cycle we assume the system has
been fully initialized even if LID input device has not been opened yet.

This has a side-effect of fixing access to input->users outside of
input->mutex protections by the way of eliminating said accesses and using
driver private flag.

Fixes: 84d3f6b7 ("ACPI / button: Delay acpi_lid_initialize_state() until first user space open")
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: NHans de Goede <hdegoede@redhat.com>
Cc: 4.15+ <stable@vger.kernel.org> # 4.15+
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Fix the following W=1 kernel build warning(s):

drivers/acpi/scan.c: In function ‘acpi_bus_get_wakeup_device_flags’:
drivers/acpi/scan.c:902:43: warning: suggest braces around empty body in
an ‘if’ statement [-Wempty-body]

by using pr_debug() to instead of the ACPI_DEBUG_PRINT() macro, which
should only be used by ACPICA code, to print a debug message.
Signed-off-by: NTian Tao <tiantao6@hisilicon.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

After commit 315bbae9 ("ACPI / memhotplug: deal with eject request
in hotplug queue"), the memory device state, which is defined in
struct acpi_memory_device, is not actually useful, so remove it along
with symbols related to it.
Signed-off-by: NHanjun Guo <guohanjun@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

extlog_init() uses rdmsrl() to read an MSR, which on older CPUs
provokes a error message at boot:

    unchecked MSR access error: RDMSR from 0x179 at rIP: 0xcd047307 (native_read_msr+0x7/0x40)

Use rdmsrl_safe() instead, and return -ENODEV if it fails.

Reported-by: jim@photojim.ca
References: https://bugs.debian.org/971058
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: NBen Hutchings <ben@decadent.org.uk>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

New access1 class is nearly the same as access0, but always provides
characteristics for CPUs to memory.   The existing access0 class
provides characteristics to nearest or direct connnect initiator
which may be a Generic Initiator such as a GPU or network adapter.

This new class allows thread placement on CPUs to be performed
so as to give optimal access characteristics to memory, even if that
memory is for example attached to a GPU or similar and only accessible
to the CPU via an appropriate bus.
Suggested-by: NDan Willaims <dan.j.williams@intel.com>
Signed-off-by: NJonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

In ACPI 6.3, the Memory Proximity Domain Attributes Structure
changed substantially.  One of those changes was that the flag
for "Memory Proximity Domain field is valid" was deprecated.

This was because the field "Proximity Domain for the Memory"
became a required field and hence having a validity flag makes
no sense.

So the correct logic is to always assume the field is there.
Current code assumes it never is.
Signed-off-by: NJonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Until we tell ACPI that we support generic initiators, it will have
to operate in fall back domain mode and all _PXM entries should
be on existing non GI domains.

This patch sets the relevant OSC bit to make that happen.
Signed-off-by: NJonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Generic Initiators are a new ACPI concept that allows for the
description of proximity domains that contain a device which
performs memory access (such as a network card) but neither
host CPU nor Memory.

This patch has the parsing code and provides the infrastructure
for an architecture to associate these new domains with their
nearest memory processing node.
Signed-off-by: NJonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

The ACPICA debug code of ACPI_SYSTEM_COMPONENT and ACPI_MODULE_NAME()
is not used in wakeup.c, remove it.
Signed-off-by: NHanjun Guo <guohanjun@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

After commit (87521e16 "acpi-video-detect: Rewrite backlight interface
selection logic"), ACPI_DEBUG_PRINT() was remove, so ACPI_MODULE_NAME()
and _COMPONENT are not used anymore, remove them.
Signed-off-by: NHanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

The ACPICA debug code is not used, can be removed.
Signed-off-by: NHanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

The ACPICA debug code is not used anywhere in processor_core.c
and processor_thermal.c, remove it.
Signed-off-by: NHanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

Remove the not used ACPICA debug code _COMPONENT and ACPI_MODULE_NAME()
which were not used even when proc.c was introduced.
Signed-off-by: NHanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

The ACPICA debug code _COMPONENT and ACPI_MODULE_NAME() are
not used, so can be removed.
Signed-off-by: NHanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

After commit (ff491a73 "netlink: change return-value logic of
netlink_broadcast()"), ACPI_DEBUG_PRINT() was removed from event.c,
so the ACPICA debug code is not used, remove it.
Signed-off-by: NHanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>

The ACPICA debug ACPI_MODULE_NAME() definition is not used, remove it.
Signed-off-by: NHanjun Guo <guohanjun@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>