8064 Commits

Author SHA1 Message Date
Dan Williams
3b0d31011d x86/numa: add 'nohmat' option
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.org

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew 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.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:27 -07:00
Dan Williams
2dd57d3415 x86/numa: cleanup configuration dependent command-line options
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: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Andrew 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.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-13 18:38:27 -07:00
Rafael J. Wysocki
2cf9ba2905 Merge branches 'pm-core', 'pm-sleep', 'pm-pci' and 'pm-domains'
* pm-core:
  PM: runtime: Fix timer_expires data type on 32-bit arches
  PM: runtime: Remove link state checks in rpm_get/put_supplier()

* pm-sleep:
  ACPI: EC: PM: Drop ec_no_wakeup check from acpi_ec_dispatch_gpe()
  ACPI: EC: PM: Flush EC work unconditionally after wakeup
  PM: hibernate: remove the bogus call to get_gendisk() in software_resume()
  PM: hibernate: Batch hibernate and resume IO requests

* pm-pci:
  PCI/ACPI: Whitelist hotplug ports for D3 if power managed by ACPI

* pm-domains:
  PM: domains: Allow to abort power off when no ->power_off() callback
  PM: domains: Rename power state enums for genpd
2020-10-13 14:48:20 +02:00
Rafael J. Wysocki
8be2362d10 Merge branches 'acpi-extlog', 'acpi-memhotplug', 'acpi-button', 'acpi-tools' and 'acpi-pci'
* acpi-extlog:
  ACPI / extlog: Check for RDMSR failure

* acpi-memhotplug:
  ACPI: memhotplug: Remove 'state' from struct acpi_memory_device

* acpi-button:
  ACPI: button: fix handling lid state changes when input device closed

* acpi-tools:
  tools/power/acpi: Serialize Makefile

* acpi-pci:
  ACPI: PCI: update kernel-doc line comments
2020-10-13 14:45:36 +02:00
Rafael J. Wysocki
5d2a3ca813 Merge branch 'acpi-misc'
* acpi-misc:
  ACPI: Make acpi_evaluate_dsm() prototype consistent
  ACPI: wakeup: Remove dead ACPICA debug code
  ACPI: video: Remove leftover ACPICA debug code
  ACPI: tiny-power-button: Remove dead ACPICA debug code
  ACPI: processor: Remove dead ACPICA debug code
  ACPI: proc: Remove dead ACPICA debug code
  ACPI: PCI: Remove unused ACPICA debug code
  ACPI: event: Remove leftover ACPICA debug code
  ACPI: dock: Remove dead ACPICA debug code
  ACPI: debugfs: Remove dead ACPICA debug code
  ACPI: custom_method: Remove dead ACPICA debug code
  ACPI: container: Remove leftover ACPICA debug functionality
  ACPI: platform: Remove ACPI_MODULE_NAME()
  ACPI: memhotplug: Remove leftover ACPICA debug functionality
  ACPI: LPSS: Remove ACPI_MODULE_NAME()
  ACPI: cmos_rtc: Remove leftover ACPI_MODULE_NAME()
  ACPI: Remove three unused inline functions
2020-10-13 14:44:57 +02:00
Rafael J. Wysocki
e4174ff78b Merge branch 'acpi-numa'
* acpi-numa:
  docs: mm: numaperf.rst Add brief description for access class 1.
  node: Add access1 class to represent CPU to memory characteristics
  ACPI: HMAT: Fix handling of changes from ACPI 6.2 to ACPI 6.3
  ACPI: Let ACPI know we support Generic Initiator Affinity Structures
  x86: Support Generic Initiator only proximity domains
  ACPI: Support Generic Initiator only domains
  ACPI / NUMA: Add stub function for pxm_to_node()
  irq-chip/gic-v3-its: Fix crash if ITS is in a proximity domain without processor or memory
  ACPI: Remove side effect of partly creating a node in acpi_get_node()
  ACPI: Rename acpi_map_pxm_to_online_node() to pxm_to_online_node()
  ACPI: Remove side effect of partly creating a node in acpi_map_pxm_to_online_node()
  ACPI: Do not create new NUMA domains from ACPI static tables that are not SRAT
  ACPI: Add out of bounds and numa_off protections to pxm_to_node()
2020-10-13 14:44:50 +02:00
Rafael J. Wysocki
20eeeafb91 Merge branches 'acpi-video', 'acpi-battery', 'acpi-config' and 'acpi-scan'
* acpi-video:
  ACPI: video: use ACPI backlight for HP 635 Notebook

* acpi-battery:
  ACPI: battery: include linux/power_supply.h

* acpi-config:
  ACPI: configfs: Add missing config_item_put() to fix refcount leak

* acpi-scan:
  ACPI: scan: Replace ACPI_DEBUG_PRINT() with pr_debug()
2020-10-13 14:44:34 +02:00
Rafael J. Wysocki
acd448f300 Merge branches 'acpi-tables', 'acpi-pmic', 'acpi-dptf' and 'acpi-soc'
* acpi-tables:
  ACPI: NFIT: Use kobj_to_dev() instead

* acpi-pmic:
  MAINTAINERS: Use my kernel.org address for Intel PMIC work
  ACPI / PMIC: Move TPS68470 OpRegion driver to drivers/acpi/pmic/
  ACPI / PMIC: Split out Kconfig and Makefile specific for ACPI PMIC

* acpi-dptf:
  ACPI: DPTF: Add PCH FIVR participant driver

* acpi-soc:
  ACPI: APD: Clean up header file include statements
  ACPI: APD: Remove unnecessary APD_ADDR() macro stub
  ACPI: APD: Remove ACPI_MODULE_NAME()
  ACPI: APD: Remove flags from struct apd_device_desc
  ACPI: APD: Add kerneldoc for properties in struct apd_device_desc
2020-10-13 14:43:16 +02:00
Linus Torvalds
6734e20e39 arm64 updates for 5.10
- Userspace support for the Memory Tagging Extension introduced by Armv8.5.
   Kernel support (via KASAN) is likely to follow in 5.11.
 
 - Selftests for MTE, Pointer Authentication and FPSIMD/SVE context
   switching.
 
 - Fix and subsequent rewrite of our Spectre mitigations, including the
   addition of support for PR_SPEC_DISABLE_NOEXEC.
 
 - Support for the Armv8.3 Pointer Authentication enhancements.
 
 - Support for ASID pinning, which is required when sharing page-tables with
   the SMMU.
 
 - MM updates, including treating flush_tlb_fix_spurious_fault() as a no-op.
 
 - Perf/PMU driver updates, including addition of the ARM CMN PMU driver and
   also support to handle CPU PMU IRQs as NMIs.
 
 - Allow prefetchable PCI BARs to be exposed to userspace using normal
   non-cacheable mappings.
 
 - Implementation of ARCH_STACKWALK for unwinding.
 
 - Improve reporting of unexpected kernel traps due to BPF JIT failure.
 
 - Improve robustness of user-visible HWCAP strings and their corresponding
   numerical constants.
 
 - Removal of TEXT_OFFSET.
 
 - Removal of some unused functions, parameters and prototypes.
 
 - Removal of MPIDR-based topology detection in favour of firmware
   description.
 
 - Cleanups to handling of SVE and FPSIMD register state in preparation
   for potential future optimisation of handling across syscalls.
 
 - Cleanups to the SDEI driver in preparation for support in KVM.
 
 - Miscellaneous cleanups and refactoring work.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "There's quite a lot of code here, but much of it is due to the
  addition of a new PMU driver as well as some arm64-specific selftests
  which is an area where we've traditionally been lagging a bit.

  In terms of exciting features, this includes support for the Memory
  Tagging Extension which narrowly missed 5.9, hopefully allowing
  userspace to run with use-after-free detection in production on CPUs
  that support it. Work is ongoing to integrate the feature with KASAN
  for 5.11.

  Another change that I'm excited about (assuming they get the hardware
  right) is preparing the ASID allocator for sharing the CPU page-table
  with the SMMU. Those changes will also come in via Joerg with the
  IOMMU pull.

  We do stray outside of our usual directories in a few places, mostly
  due to core changes required by MTE. Although much of this has been
  Acked, there were a couple of places where we unfortunately didn't get
  any review feedback.

  Other than that, we ran into a handful of minor conflicts in -next,
  but nothing that should post any issues.

  Summary:

   - Userspace support for the Memory Tagging Extension introduced by
     Armv8.5. Kernel support (via KASAN) is likely to follow in 5.11.

   - Selftests for MTE, Pointer Authentication and FPSIMD/SVE context
     switching.

   - Fix and subsequent rewrite of our Spectre mitigations, including
     the addition of support for PR_SPEC_DISABLE_NOEXEC.

   - Support for the Armv8.3 Pointer Authentication enhancements.

   - Support for ASID pinning, which is required when sharing
     page-tables with the SMMU.

   - MM updates, including treating flush_tlb_fix_spurious_fault() as a
     no-op.

   - Perf/PMU driver updates, including addition of the ARM CMN PMU
     driver and also support to handle CPU PMU IRQs as NMIs.

   - Allow prefetchable PCI BARs to be exposed to userspace using normal
     non-cacheable mappings.

   - Implementation of ARCH_STACKWALK for unwinding.

   - Improve reporting of unexpected kernel traps due to BPF JIT
     failure.

   - Improve robustness of user-visible HWCAP strings and their
     corresponding numerical constants.

   - Removal of TEXT_OFFSET.

   - Removal of some unused functions, parameters and prototypes.

   - Removal of MPIDR-based topology detection in favour of firmware
     description.

   - Cleanups to handling of SVE and FPSIMD register state in
     preparation for potential future optimisation of handling across
     syscalls.

   - Cleanups to the SDEI driver in preparation for support in KVM.

   - Miscellaneous cleanups and refactoring work"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (148 commits)
  Revert "arm64: initialize per-cpu offsets earlier"
  arm64: random: Remove no longer needed prototypes
  arm64: initialize per-cpu offsets earlier
  kselftest/arm64: Check mte tagged user address in kernel
  kselftest/arm64: Verify KSM page merge for MTE pages
  kselftest/arm64: Verify all different mmap MTE options
  kselftest/arm64: Check forked child mte memory accessibility
  kselftest/arm64: Verify mte tag inclusion via prctl
  kselftest/arm64: Add utilities and a test to validate mte memory
  perf: arm-cmn: Fix conversion specifiers for node type
  perf: arm-cmn: Fix unsigned comparison to less than zero
  arm64: dbm: Invalidate local TLB when setting TCR_EL1.HD
  arm64: mm: Make flush_tlb_fix_spurious_fault() a no-op
  arm64: Add support for PR_SPEC_DISABLE_NOEXEC prctl() option
  arm64: Pull in task_stack_page() to Spectre-v4 mitigation code
  KVM: arm64: Allow patching EL2 vectors even with KASLR is not enabled
  arm64: Get rid of arm64_ssbd_state
  KVM: arm64: Convert ARCH_WORKAROUND_2 to arm64_get_spectre_v4_state()
  KVM: arm64: Get rid of kvm_arm_have_ssbd()
  KVM: arm64: Simplify handling of ARCH_WORKAROUND_2
  ...
2020-10-12 10:00:51 -07:00
Rafael J. Wysocki
9a15da1b84 Merge back earlier ACPICA-related changes for 5.10. 2020-10-08 18:04:04 +02:00
Bob Moore
167504a0a6 ACPICA: Remove unnecessary semicolon
ACPICA commit 02ffcba2af123a891eefbaed4d37780ba1e36ccc

Reported by: Zou Wei.

Link: https://github.com/acpica/acpica/commit/02ffcba2
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-08 18:03:56 +02:00
Bob Moore
6218ab30da ACPICA: Debugger: Add a new command: "ALL <NameSeg>"
This command will execute/evaluate all objects with a match to the
<NameSeg> argument.

ACPICA commit a1a32ec054f067d1617067e2bafb0a27a8728e07

Link: https://github.com/acpica/acpica/commit/a1a32ec0
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-08 18:03:55 +02:00
Bob Moore
ef3efb439a ACPICA: iASL: Return exceptions for string-to-integer conversions
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/e98b8c0a
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-08 18:03:55 +02:00
Bob Moore
4d58403726 ACPICA: Add predefined names found in the SMBus sepcification
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/2fe13bd7
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-08 18:03:55 +02:00
Colin Ian King
465e490d29 ACPICA: Tree-wide: fix various typos and spelling mistakes
ACPICA commit 6648a6ac8410813bcfedb5c8345259dd155ea851

Fix spelling issues found using the codespell checker

Link: https://github.com/acpica/acpica/commit/6648a6ac
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Kaneda <erik.kaneda@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-08 18:03:55 +02:00
Rafael J. Wysocki
e0e9ce390d ACPI: EC: PM: Drop ec_no_wakeup check from acpi_ec_dispatch_gpe()
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: Todd Brandt <todd.e.brandt@linux.intel.com>
Cc: 5.4+ <stable@vger.kernel.org> # 5.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-06 12:31:31 +02:00
Rafael J. Wysocki
5e92442bb4 ACPI: EC: PM: Flush EC work unconditionally after wakeup
Commit 607b9df63057 ("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 607b9df63057 is not
reproducible any more on the affected machine.

Fixes: 607b9df63057 ("ACPI: EC: PM: Avoid flushing EC work when EC GPE is inactive")
Reported-by: Raymond Tan <raymond.tan@intel.com>
Cc: 5.4+ <stable@vger.kernel.org> # 5.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-06 12:31:31 +02:00
Christoph Hellwig
0a0f0d8be7 dma-mapping: split <linux/dma-mapping.h>
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: Christoph Hellwig <hch@lst.de>
2020-10-06 07:07:03 +02:00
dmitry.torokhov@gmail.com
21988a8e51 ACPI: button: fix handling lid state changes when input device closed
The original intent of 84d3f6b76447 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: 84d3f6b76447 ("ACPI / button: Delay acpi_lid_initialize_state() until first user space open")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Cc: 4.15+ <stable@vger.kernel.org> # 4.15+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-05 13:22:54 +02:00
Greg Kroah-Hartman
168ae5a74b Merge 5.9-rc8 into usb-next
We need the USB fixes in here as well for testing.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-05 08:54:36 +02:00
Tian Tao
05de068614 ACPI: scan: Replace ACPI_DEBUG_PRINT() with pr_debug()
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: Tian Tao <tiantao6@hisilicon.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-02 19:10:24 +02:00
Hanjun Guo
c18483a8ed ACPI: memhotplug: Remove 'state' from struct acpi_memory_device
After commit 315bbae9c5cb ("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: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-02 19:05:50 +02:00
Ben Hutchings
7cecb47f55 ACPI / extlog: Check for RDMSR failure
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: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-02 19:01:55 +02:00
Jonathan Cameron
b9fffe4721 node: Add access1 class to represent CPU to memory characteristics
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: Dan Willaims <dan.j.williams@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-02 18:51:57 +02:00
Jonathan Cameron
2c5b9bde95 ACPI: HMAT: Fix handling of changes from ACPI 6.2 to ACPI 6.3
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: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-02 18:51:57 +02:00
Jonathan Cameron
01aabca2fd ACPI: Let ACPI know we support Generic Initiator Affinity Structures
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: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-02 18:51:57 +02:00
Jonathan Cameron
894c26a1c2 ACPI: Support Generic Initiator only domains
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: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-02 18:51:57 +02:00
Greg Kroah-Hartman
59ee364baf thunderbolt: Changes for v5.10 merge window
This includes following Thunderbolt/USB4 changes for v5.10 merge window:
 
   * A couple of optimizations around Tiger Lake force power logic and
     NHI (Native Host Interface) LC (Link Controller) mailbox command
     processing
 
   * Power management improvements for Software Connection Manager
 
   * Debugfs support
 
   * Allow KUnit tests to be enabled also when Thunderbolt driver is
     configured as module.
 
   * Few minor cleanups and fixes
 
 All these have been in linux-next with no reported issues.
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Merge tag 'thunderbolt-for-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next

Mika writes:

thunderbolt: Changes for v5.10 merge window

This includes following Thunderbolt/USB4 changes for v5.10 merge window:

  * A couple of optimizations around Tiger Lake force power logic and
    NHI (Native Host Interface) LC (Link Controller) mailbox command
    processing

  * Power management improvements for Software Connection Manager

  * Debugfs support

  * Allow KUnit tests to be enabled also when Thunderbolt driver is
    configured as module.

  * Few minor cleanups and fixes

All these have been in linux-next with no reported issues.

* tag 'thunderbolt-for-v5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt: (37 commits)
  thunderbolt: Capitalize comment on top of QUIRK_FORCE_POWER_LINK_CONTROLLER
  thunderbolt: Correct tb_check_quirks() kernel-doc
  thunderbolt: Log correct zeroX entries in decode_error()
  thunderbolt: Handle ERR_LOCK notification
  thunderbolt: Use "if USB4" instead of "depends on" in Kconfig
  thunderbolt: Allow KUnit tests to be built also when CONFIG_USB4=m
  thunderbolt: Only stop control channel when entering freeze
  thunderbolt: debugfs: Fix uninitialized return in counters_write()
  thunderbolt: Add debugfs interface
  thunderbolt: No need to warn in TB_CFG_ERROR_INVALID_CONFIG_SPACE
  thunderbolt: Introduce tb_switch_is_tiger_lake()
  thunderbolt: Introduce tb_switch_is_ice_lake()
  thunderbolt: Check for Intel vendor ID when identifying controller
  thunderbolt: Introduce tb_port_is_nhi()
  thunderbolt: Introduce tb_switch_next_cap()
  thunderbolt: Introduce tb_port_next_cap()
  thunderbolt: Move struct tb_cap_any to tb_regs.h
  thunderbolt: Add runtime PM for Software CM
  thunderbolt: Create device links from ACPI description
  ACPI: Export acpi_get_first_physical_node() to modules
  ...
2020-09-30 09:42:36 +02:00
Rafael J. Wysocki
f3643b5b77 Merge back cpuidle material for 5.10. 2020-09-28 16:31:25 +02:00
Hanjun Guo
77569c7533 ACPI: wakeup: Remove dead ACPICA debug code
The ACPICA debug code of ACPI_SYSTEM_COMPONENT and ACPI_MODULE_NAME()
is not used in wakeup.c, remove it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
e0e13705ed ACPI: video: Remove leftover ACPICA debug code
After commit (87521e16a7ab "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: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
b16cd57ebc ACPI: tiny-power-button: Remove dead ACPICA debug code
The ACPICA debug code is not used, can be removed.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
34f98c2904 ACPI: processor: Remove dead ACPICA debug code
The ACPICA debug code is not used anywhere in processor_core.c
and processor_thermal.c, remove it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
d93b767e8c ACPI: proc: Remove dead ACPICA debug code
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: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
be690f3ed1 ACPI: PCI: Remove unused ACPICA debug code
The ACPICA debug code _COMPONENT and ACPI_MODULE_NAME() are
not used, so can be removed.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
3ffa00e88d ACPI: event: Remove leftover ACPICA debug code
After commit (ff491a7334ac "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: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
7ae57c6d14 ACPI: dock: Remove dead ACPICA debug code
The ACPICA debug ACPI_MODULE_NAME() definition is not used, remove it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
d0611c6e02 ACPI: debugfs: Remove dead ACPICA debug code
The _COMPONENT and ACPI_MODULE_NAME() were not used even when
the debugfs.c was introduced, remove them.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
6b168c56e5 ACPI: custom_method: Remove dead ACPICA debug code
ACPICA debug code _COMPONENT and ACPI_MODULE_NAME() is not
used in custom_method.c, remove it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
d2c18c0db8 ACPI: container: Remove leftover ACPICA debug functionality
After commit 737f1a9f8082 ("ACPI / scan: Make container driver use
struct acpi_scan_handler"), ACPICA debug print function calls were
removed, so the leftover ACPICA debug functionality is useless,
remove it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
da5b64329d ACPI: platform: Remove ACPI_MODULE_NAME()
ACPI_MODULE_NAME() is not used in the acpi_platform.c, remove it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
8295d79003 ACPI: memhotplug: Remove leftover ACPICA debug functionality
After commit 0a34764411aa ("ACPI / scan: Make memory hotplug drive
use struct acpi_scan_handler"), all the ACPICA debug functionality
was removed, remove the leftover ACPICA debug code.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
cbaef23b2c ACPI: LPSS: Remove ACPI_MODULE_NAME()
ACPI_MODULE_NAME() is only needed for ACPICA debug functionality
such as ACPI_DEBUG_PRINT() which is not used in acpi_lpss.c,
remove it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Hanjun Guo
1eb3d04145 ACPI: cmos_rtc: Remove leftover ACPI_MODULE_NAME()
ACPI_MODULE_NAME() is only needed for ACPICA debug functionality
such as ACPI_DEBUG_PRINT() which is not used in acpi_cmos_rtc.c,
remove it.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:25:51 +02:00
Tian Tao
8e8883cef6 ACPI: PCI: update kernel-doc line comments
Update kernel-doc line comments to fix warnings reported by make W=1:

drivers/acpi/pci_root.c:71: warning: Function parameter or
member 'handle' not described in 'acpi_is_root_bridge'

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:14:17 +02:00
Tian Tao
38db63baf8 PNP: ACPI: Fix missing-prototypes in acpi_pnp.c
Fix the following warnings.
drivers/acpi/acpi_pnp.c:382:13: warning: no previous prototype
for ‘acpi_pnp_init’ [-Wmissing-prototypes].

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:11:33 +02:00
Hanjun Guo
9a2e849fb6 ACPI: configfs: Add missing config_item_put() to fix refcount leak
config_item_put() should be called in the drop_item callback, to
decrement refcount for the config item.

Fixes: 772bf1e2878ec ("ACPI: configfs: Unload SSDT on configfs entry removal")
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject edit ]
Cc: 4.13+ <stable@vger.kernel.org> # 4.13+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 18:08:39 +02:00
Alex Hung
b226faab4e ACPI: video: use ACPI backlight for HP 635 Notebook
The default backlight interface is AMD's radeon_bl0 which does not
work on this system, so use the ACPI backlight interface on it
instead.

BugLink: https://bugs.launchpad.net/bugs/1894667
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Alex Hung <alex.hung@canonical.com>
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 12:59:24 +02:00
Jason Yan
8b62740472 ACPI, APEI: make apei_resources_all static
This eliminates the following sparse warning:

drivers/acpi/apei/apei-base.c:290:23: warning: symbol
'apei_resources_all' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 12:54:47 +02:00
Hanjun Guo
32c6f3ffa0 ACPI: APD: Clean up header file include statements
Make the included header files appear in the alphabetical order and
remove the unnecessary header file inclusions.

Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-09-25 12:48:11 +02:00