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Pull arm64 updates from Will Deacon:
"The headline feature is the re-enablement of support for Arm's
Scalable Matrix Extension (SME) thanks to a bumper crop of fixes
from Mark Rutland.
If matrices aren't your thing, then Ryan's page-table optimisation
work is much more interesting.
Summary:
ACPI, EFI and PSCI:
- Decouple Arm's "Software Delegated Exception Interface" (SDEI)
support from the ACPI GHES code so that it can be used by platforms
booted with device-tree
- Remove unnecessary per-CPU tracking of the FPSIMD state across EFI
runtime calls
- Fix a node refcount imbalance in the PSCI device-tree code
CPU Features:
- Ensure register sanitisation is applied to fields in ID_AA64MMFR4
- Expose AIDR_EL1 to userspace via sysfs, primarily so that KVM
guests can reliably query the underlying CPU types from the VMM
- Re-enabling of SME support (CONFIG_ARM64_SME) as a result of fixes
to our context-switching, signal handling and ptrace code
Entry code:
- Hook up TIF_NEED_RESCHED_LAZY so that CONFIG_PREEMPT_LAZY can be
selected
Memory management:
- Prevent BSS exports from being used by the early PI code
- Propagate level and stride information to the low-level TLB
invalidation routines when operating on hugetlb entries
- Use the page-table contiguous hint for vmap() mappings with
VM_ALLOW_HUGE_VMAP where possible
- Optimise vmalloc()/vmap() page-table updates to use "lazy MMU mode"
and hook this up on arm64 so that the trailing DSB (used to publish
the updates to the hardware walker) can be deferred until the end
of the mapping operation
- Extend mmap() randomisation for 52-bit virtual addresses (on par
with 48-bit addressing) and remove limited support for
randomisation of the linear map
Perf and PMUs:
- Add support for probing the CMN-S3 driver using ACPI
- Minor driver fixes to the CMN, Arm-NI and amlogic PMU drivers
Selftests:
- Fix FPSIMD and SME tests to align with the freshly re-enabled SME
support
- Fix default setting of the OUTPUT variable so that tests are
installed in the right location
vDSO:
- Replace raw counter access from inline assembly code with a call to
the the __arch_counter_get_cntvct() helper function
Miscellaneous:
- Add some missing header inclusions to the CCA headers
- Rework rendering of /proc/cpuinfo to follow the x86-approach and
avoid repeated buffer expansion (the user-visible format remains
identical)
- Remove redundant selection of CONFIG_CRC32
- Extend early error message when failing to map the device-tree
blob"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (83 commits)
arm64: cputype: Add cputype definition for HIP12
arm64: el2_setup.h: Make __init_el2_fgt labels consistent, again
perf/arm-cmn: Add CMN S3 ACPI binding
arm64/boot: Disallow BSS exports to startup code
arm64/boot: Move global CPU override variables out of BSS
arm64/boot: Move init_pgdir[] and init_idmap_pgdir[] into __pi_ namespace
perf/arm-cmn: Initialise cmn->cpu earlier
kselftest/arm64: Set default OUTPUT path when undefined
arm64: Update comment regarding values in __boot_cpu_mode
arm64: mm: Drop redundant check in pmd_trans_huge()
arm64/mm: Re-organise setting up FEAT_S1PIE registers PIRE0_EL1 and PIR_EL1
arm64/mm: Permit lazy_mmu_mode to be nested
arm64/mm: Disable barrier batching in interrupt contexts
arm64/cpuinfo: only show one cpu's info in c_show()
arm64/mm: Batch barriers when updating kernel mappings
mm/vmalloc: Enter lazy mmu mode while manipulating vmalloc ptes
arm64/mm: Support huge pte-mapped pages in vmap
mm/vmalloc: Gracefully unmap huge ptes
mm/vmalloc: Warn on improper use of vunmap_range()
arm64/mm: Hoist barriers out of set_ptes_anysz() loop
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Pull ACPI updates from Rafael Wysocki:
"The most significant part of these changes is an ACPICA update
covering two upstream ACPICA releases, 20241212 and 20250404, that
have not been included into the kernel code base yet.
Among other things, it adds definitions needed to address GCC 15's
-Wunterminated-string-initialization warnings, adds support for three
new tables (MRRM, ERDT, RIMT), extends support for two tables (RAS2,
DMAR), and fixes some issues.
On top of the above, there is a new parser for the MRRM table, more
changes related to GCC 15's -Wunterminated-string-initialization
warnings, a CPPC library update including functions related to
autonomous CPU performance state selection, a couple of new quirks,
some assorted fixes and some code cleanups.
Specifics:
- Fix two ACPICA SLAB cache leaks (Seunghun Han)
- Add EINJv2 get error type action and define Error Injection Actions
in hex values to avoid inconsistencies between the specification
and the code (Zaid Alali)
- Fix typo in comments for SRAT structures (Adam Lackorzynski)
- Prevent possible loss of data in ACPICA because of u32 to u8
conversions (Saket Dumbre)
- Fix reading FFixedHW operation regions in ACPICA (Daniil Tatianin)
- Add support for printing AML arguments when the ACPICA debug level
is ACPI_LV_TRACE_POINT (Mario Limonciello)
- Drop a stale comment about the file content from actbl2.h (Sudeep
Holla)
- Apply pack(1) to union aml_resource (Tamir Duberstein)
- Fix overflow check in the ACPICA version of vsnprintf() (gldrk)
- Interpret SIDP structures in DMAR added revision 3.4 of the VT-d
specification (Alexey Neyman)
- Add typedef and other definitions related to MRRM to ACPICA (Tony
Luck)
- Add definitions for RIMT to ACPICA (Sunil V L)
- Fix spelling mistake "Incremement" -> "Increment" in the ACPICA
utilities code (Colin Ian King)
- Add typedef and other definitions for ERDT to ACPICA (Tony Luck)
- Introduce ACPI_NONSTRING and use it (Kees Cook, Ahmed Salem)
- Rename structure and field names of the RAS2 table in actbl2.h
(Shiju Jose)
- Fix up whitespace in acpica/utcache.c (Zhe Qiao)
- Avoid sequence overread in a call to strncmp() in
ap_get_table_length() and replace strncpy() with memcpy() in ACPICA
in some places (Ahmed Salem)
- Update copyright year in all ACPICA files (Saket Dumbre)
- Add __nonstring annotations for unterminated strings in the static
ACPI tables parsing code (Kees Cook)
- Add support for parsing the MRRM ACPI table and sysfs files to
describe memory regions listed in it (Tony Luck, Anil
Keshavamurthy)
- Remove an (explicitly) unused header file include from the VIOT
ACPI table parser file (Andy Shevchenko)
- Improve logging around acpi_initialize_tables() (Bartosz
Szczepanek)
- Clean up the initialization of CPU data structures in the ACPI
processor driver (Zhang Rui)
- Remove an obsolete comment regarding the C-states handling in the
ACPI processor driver (Giovanni Gherdovich)
- Simplify PCC shared memory region handling (Sudeep Holla)
- Rework and extend functions for reading CPPC register values and
for updating CPPC registers (Lifeng Zheng)
- Add three functions related to autonomous CPU performance state
selection to the CPPC library (Lifeng Zheng)
- Turn the acpi_pci_root_remap_iospace() fwnode_handle parameter into
a const pointer (Pei Xiao)
- Round battery capacity percengate in the ACPI battery driver to the
closest integer to avoid user confusion (shitao)
- Make the ACPI battery driver report the current as a negative
number to the power supply framework when the battery is
discharging as documented (Peter Marheine)
- Add TUXEDO InfinityBook Pro AMD Gen9 to the acpi_ec_no_wakeup[]
list to prevent spurious wakeups from suspend-to-idle (Werner
Sembach)
- Convert the APEI EINJ driver to a faux device one (Sudeep Holla,
Jon Hunter)
- Remove redundant calls to einj_get_available_error_type() from the
APEI EINJ driver (Zaid Alali)
- Fix a typo for MECHREVO in irq1_edge_low_force_override[] (Mingcong
Bai)
- Add an LPS0 check() callback to the AMD pinctrl driver and fix up
config symbol dependencies in it (Mario Limonciello, Rafael
Wysocki)
- Avoid initializing the ACPI platform profile driver on non-ACPI
platforms (Alexandre Ghiti)
- Document that references to ACPI data (non-device) nodes should use
string-only references in hierarchical data node packages (Sakari
Ailus)
- Fail the ACPI bus registration if acpi_kobj registration fails
(Armin Wolf)"
* tag 'acpi-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits)
ACPI: MRRM: Fix default max memory region
ACPI: bus: Bail out if acpi_kobj registration fails
ACPI: platform_profile: Avoid initializing on non-ACPI platforms
pinctrl: amd: Fix hibernation support with CONFIG_SUSPEND unset
ACPI: tables: Improve logging around acpi_initialize_tables()
ACPI: VIOT: Remove (explicitly) unused header
ACPI: Add documentation for exposing MRRM data
ACPI: MRRM: Add /sys files to describe memory ranges
ACPI: MRRM: Minimal parse of ACPI MRRM table
ACPICA: Update copyright year
ACPICA: Logfile: Changes for version 20250404
ACPICA: Replace strncpy() with memcpy()
ACPICA: Apply ACPI_NONSTRING in more places
ACPICA: Avoid sequence overread in call to strncmp()
ACPICA: Adjust the position of code lines
ACPICA: actbl2.h: ACPI 6.5: RAS2: Rename structure and field names of the RAS2 table
ACPICA: Apply ACPI_NONSTRING
ACPICA: Introduce ACPI_NONSTRING
ACPICA: actbl2.h: ERDT: Add typedef and other definitions
ACPICA: infrastructure: Add new DMT_BUF types and shorten a long name
...
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Pull thermal control updates from Rafael Wysocki:
"These add support for a new feature, Platform Temperature Control
(PTC), to the Intel int340x thermal driver, add support for the Airoha
EN7581 thermal sensor and the IPQ5018 platform, fix up the ACPI
thermal zones handling, fix other assorted issues and clean up code
Specifics:
- Add Platform Temperature Control (PTC) support to the Intel int340x
thermal driver (Srinivas Pandruvada)
- Make the Hisilicon thermal driver compile by default when ARCH_HISI
is set (Krzysztof Kozlowski)
- Clean up printk() format by using %pC instead of %pCn in the
bcm2835 thermal driver (Luca Ceresoli)
- Fix variable name coding style in the AmLogic thermal driver
(Enrique Isidoro Vazquez Ramos)
- Fix missing debugfs entry removal on failure by using the devm_
variant in the LVTS thermal driver (AngeloGioacchino Del Regno)
- Remove the unused lvts_debugfs_exit() function as the devm_ variant
introduced before takes care of removing the debugfs entry in the
LVTS driver (Arnd Bergmann)
- Add the Airoha EN7581 thermal sensor support along with its DT
bindings (Christian Marangi)
- Add ipq5018 compatible string DT binding, cleanup and add its
suppot to the QCom Tsens thermal driver (Sricharan Ramabadhran,
George Moussalem)
- Fix comments typos in the Airoha driver (Christian Marangi, Colin
Ian King)
- Address a sparse warning by making a local variable static in the
QCom thermal driver (George Moussalem)
- Fix the usage of the _SCP control method in the driver for ACPI
thermal zones (Armin Wolf)"
* tag 'thermal-6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: qcom: ipq5018: make ops_ipq5018 struct static
thermal/drivers/airoha: Fix spelling mistake "calibrarion" -> "calibration"
ACPI: thermal: Execute _SCP before reading trip points
ACPI: OSI: Stop advertising support for "3.0 _SCP Extensions"
thermal/drivers/airoha: Fix spelling mistake
thermal/drivers/qcom/tsens: Add support for IPQ5018 tsens
thermal/drivers/qcom/tsens: Add support for tsens v1 without RPM
thermal/drivers/qcom/tsens: Update conditions to strictly evaluate for IP v2+
dt-bindings: thermal: qcom-tsens: Add ipq5018 compatible
thermal/drivers: Add support for Airoha EN7581 thermal sensor
dt-bindings: thermal: Add support for Airoha EN7581 thermal sensor
thermal/drivers/mediatek/lvts: Remove unused lvts_debugfs_exit
thermal/drivers/mediatek/lvts: Fix debugfs unregister on failure
thermal/drivers/amlogic: Rename Uptat to uptat to follow kernel coding style
vsprintf: remove redundant and unused %pCn format specifier
thermal/drivers/bcm2835: Use %pC instead of %pCn
thermal/drivers/hisi: Do not enable by default during compile testing
thermal: int340x: processor_thermal: Platform temperature control documentation
thermal: intel: int340x: Enable platform temperature control
thermal: intel: int340x: Add platform temperature control interface
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Merge an ACPI resources management update, ACPI power management
updates, an ACPI platform profile driver fix and an ACPI documentation
update related to device properties for 6.16-rc1:
- Fix a typo for MECHREVO in irq1_edge_low_force_override[] (Mingcong
Bai).
- Add an LPS0 check() callback to the AMD pinctrl driver and fix up
config symbol dependencies in it (Mario Limonciello, Rafael Wysocki).
- Avoid initializing the ACPI platform profile driver on non-ACPI
platforms (Alexandre Ghiti).
- Document that references to ACPI data (non-device) nodes should use
string-only references in hierarchical data node packages (Sakari
Ailus).
* acpi-resource:
ACPI: resource: fix a typo for MECHREVO in irq1_edge_low_force_override[]
* acpi-pm:
pinctrl: amd: Fix hibernation support with CONFIG_SUSPEND unset
pinctrl: amd: Fix use of undeclared identifier 'pinctrl_amd_s2idle_dev_ops'
pinctrl: amd: Add an LPS0 check() callback
ACPI: Add missing prototype for non CONFIG_SUSPEND/CONFIG_X86 case
* acpi-platform-profile:
ACPI: platform_profile: Avoid initializing on non-ACPI platforms
* acpi-docs:
Documentation: ACPI: Use all-string data node references
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Merge an ACPI PCI root driver update, ACPI battery driver updates, an
ACPI EC driver update and APEI updates for 6.16-rc1:
- Turn the acpi_pci_root_remap_iospace() fwnode_handle parameter into a
const pointer (Pei Xiao).
- Round battery capacity percengate in the ACPI battery driver to the
closest integer to avoid user confusion (shitao).
- Make the ACPI battery driver report the current as a negative number
to the power supply framework when the battery is discharging as
documented (Peter Marheine).
- Add TUXEDO InfinityBook Pro AMD Gen9 to the acpi_ec_no_wakeup[] list
to prevent spurious wakeups from suspend-to-idle (Werner Sembach).
- Convert the APEI EINJ driver to a faux device one (Sudeep Holla, Jon
Hunter).
- Remove redundant calls to einj_get_available_error_type() from the
APEI EINJ driver (Zaid Alali).
* acpi-pci:
ACPI: PCI: Constify fwnode_handle in acpi_pci_root_remap_iospace()
* acpi-battery:
ACPI: battery: negate current when discharging
ACPI: battery: Round capacity percengate to closest integer
* acpi-ec:
ACPI: EC: Add device to acpi_ec_no_wakeup[] qurik list
* acpi-apei:
ACPI: APEI: EINJ: Remove redundant calls to einj_get_available_error_type()
ACPI: APEI: EINJ: Fix probe error message
ACPI: APEI: EINJ: Transition to the faux device interface
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Merge ACPI processor driver updates and ACPI CPPC library updates for
6.16-rc1:
- Clean up the initialization of CPU data structures in the ACPI
processor driver (Zhang Rui).
- Remove an obsolete comment regarding the C-states handling in the
ACPI processor driver (Giovanni Gherdovich).
- Simplify PCC shared memory region handling (Sudeep Holla).
- Rework and extend functions for reading CPPC register values and for
updating CPPC registers (Lifeng Zheng).
- Add three functions related to autonomous CPU performance state
selection to the CPPC library (Lifeng Zheng).
* acpi-processor:
ACPI: processor: idle: Remove redundant pr->power.count assignment
ACPI: processor: idle: Set pr->flags.power unconditionally
ACPI: processor: idle: Remove obsolete comment
* acpi-cppc:
ACPI: CPPC: Add three functions related to autonomous selection
ACPI: CPPC: Modify cppc_get_auto_sel_caps() to cppc_get_auto_sel()
ACPI: CPPC: Refactor register value get and set ABIs
ACPI: CPPC: Add cppc_set_reg_val()
ACPI: CPPC: Extract cppc_get_reg_val_in_pcc()
ACPI: CPPC: Rename cppc_get_perf() to cppc_get_reg_val()
ACPI: CPPC: Optimize cppc_get_perf()
ACPI: CPPC: Add IS_OPTIONAL_CPC_REG macro to judge if a cpc_reg is optional
ACPI: CPPC: Simplify PCC shared memory region handling
ACPI: PCC: Simplify PCC shared memory region handling
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Merge updates related to the handling of static (data-only) ACPI tables
for 6.16-rc1:
- Add __nonstring annotations for unterminated strings in the static
ACPI tables parsing code (Kees Cook).
- Add support for parsing the MRRM ACPI table and sysfs files to
describe memory regions listed in it (Tony Luck, Anil Keshavamurthy).
- Remove an (explicitly) unused header file include from the VIOT ACPI
table parser file (Andy Shevchenko).
- Improve logging around acpi_initialize_tables() (Bartosz Szczepanek).
* acpi-tables:
ACPI: MRRM: Fix default max memory region
ACPI: tables: Improve logging around acpi_initialize_tables()
ACPI: VIOT: Remove (explicitly) unused header
ACPI: Add documentation for exposing MRRM data
ACPI: MRRM: Add /sys files to describe memory ranges
ACPI: MRRM: Minimal parse of ACPI MRRM table
ACPI: tables: Add __nonstring annotations for unterminated strings
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Merge ACPICA updates, including two upstream releases 20241212 and
20250404, for 6.16-rc1:
- Fix two ACPICA SLAB cache leaks (Seunghun Han).
- Add EINJv2 get error type action and define Error Injection Actions
in hex values to avoid inconsistencies between the specification and
the code (Zaid Alali).
- Fix typo in comments for SRAT structures (Adam Lackorzynski).
- Prevent possible loss of data in ACPICA because of u32 to u8
conversions (Saket Dumbre).
- Fix reading FFixedHW operation regions in ACPICA (Daniil Tatianin).
- Add support for printing AML arguments when the ACPICA debug level is
ACPI_LV_TRACE_POINT (Mario Limonciello).
- Drop a stale comment about the file content from actbl2.h (Sudeep
Holla).
- Apply pack(1) to union aml_resource (Tamir Duberstein).
- Fix overflow check in the ACPICA version of vsnprintf() (gldrk).
- Interpret SIDP structures in DMAR added revision 3.4 of the VT-d
specification (Alexey Neyman).
- Add typedef and other definitions related to MRRM to ACPICA (Tony
Luck).
- Add definitions for RIMT to ACPICA (Sunil V L).
- Fix spelling mistake "Incremement" -> "Increment" in the ACPICA
utilities code (Colin Ian King).
- Add typedef and other definitions for ERDT to ACPICA (Tony Luck).
- Introduce ACPI_NONSTRING and use it (Kees Cook, Ahmed Salem).
- Rename structure and field names of the RAS2 table in actbl2.h (Shiju
Jose).
- Fix up whitespace in acpica/utcache.c (Zhe Qiao).
- Avoid sequence overread in a call to strncmp() in ap_get_table_length()
and replace strncpy() with memcpy() in ACPICA in some places (Ahmed
Salem).
- Update copyright year in all ACPICA files (Saket Dumbre).
* acpica: (30 commits)
ACPICA: Update copyright year
ACPICA: Logfile: Changes for version 20250404
ACPICA: Replace strncpy() with memcpy()
ACPICA: Apply ACPI_NONSTRING in more places
ACPICA: Avoid sequence overread in call to strncmp()
ACPICA: Adjust the position of code lines
ACPICA: actbl2.h: ACPI 6.5: RAS2: Rename structure and field names of the RAS2 table
ACPICA: Apply ACPI_NONSTRING
ACPICA: Introduce ACPI_NONSTRING
ACPICA: actbl2.h: ERDT: Add typedef and other definitions
ACPICA: infrastructure: Add new DMT_BUF types and shorten a long name
ACPICA: Utilities: Fix spelling mistake "Incremement" -> "Increment"
ACPICA: MRRM: Some cleanups
ACPICA: actbl2: Add definitions for RIMT
ACPICA: actbl2.h: MRRM: Add typedef and other definitions
ACPICA: infrastructure: Add new header and ACPI_DMT_BUF26 types
ACPICA: Interpret SIDP structures in DMAR
ACPICA: utilities: Fix overflow check in vsnprintf()
ACPICA: Apply pack(1) to union aml_resource
ACPICA: Drop stale comment about the header file content
...
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Per the spec, the default max memory region must be 1 covering
all system memory.
When platform does not provide ACPI MRRM table or
when CONFIG_ACPI is opted out, the acpi_mrrm_max_mem_region() function
defaults to returning 1 region complying to RDT spec.
Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Reviewed-by: Tony Luck <tony.luck@intel.com>
Link: https://patch.msgid.link/20250523172001.1761634-1-anil.s.keshavamurthy@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The ACPI sysfs code will fail to initialize if acpi_kobj is NULL,
together with some ACPI drivers.
Follow the other firmware subsystems and bail out if the kobject
cannot be registered.
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20250518185111.3560-2-W_Armin@gmx.de
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The platform profile driver is loaded even on platforms that do not have
ACPI enabled. The initialization of the sysfs entries was recently moved
from platform_profile_register() to the module init call, and those
entries need acpi_kobj to be initialized which is not the case when ACPI
is disabled.
This results in the following warning:
WARNING: CPU: 5 PID: 1 at fs/sysfs/group.c:131 internal_create_group+0xa22/0xdd8
Modules linked in:
CPU: 5 UID: 0 PID: 1 Comm: swapper/0 Tainted: G W 6.15.0-rc7-dirty #6 PREEMPT
Tainted: [W]=WARN
Hardware name: riscv-virtio,qemu (DT)
epc : internal_create_group+0xa22/0xdd8
ra : internal_create_group+0xa22/0xdd8
Call Trace:
internal_create_group+0xa22/0xdd8
sysfs_create_group+0x22/0x2e
platform_profile_init+0x74/0xb2
do_one_initcall+0x198/0xa9e
kernel_init_freeable+0x6d8/0x780
kernel_init+0x28/0x24c
ret_from_fork+0xe/0x18
Fix this by checking if ACPI is enabled before trying to create sysfs
entries.
Fixes: 77be5cacb2c2 ("ACPI: platform_profile: Create class for ACPI platform profile")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Link: https://patch.msgid.link/20250522141410.31315-1-alexghiti@rivosinc.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Pick up build fixes from upstream to make this tree more testable.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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The following commit:
efef7f184f2e ("x86/msr: Add explicit includes of <asm/msr.h>")
added a superfluous inclusion of <asm/asm.h> to
drivers/acpi/processor_throttling.c.
Remove it.
Fixes: efef7f184f2e ("x86/msr: Add explicit includes of <asm/msr.h>")
Signed-off-by: Xin Li (Intel) <xin@zytor.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Link: https://lore.kernel.org/r/20250512084552.1586883-2-xin@zytor.com
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As specified in section 11.4.13 of the ACPI specification the
operating system is required to evaluate the _ACx and _PSV objects
after executing the _SCP control method.
Move the execution of the _SCP control method before the invocation
of acpi_thermal_get_trip_points() to avoid missing updates to the
_ACx and _PSV objects.
Fixes: b09872a652d3 ("ACPI: thermal: Fold acpi_thermal_get_info() into its caller")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20250410165456.4173-3-W_Armin@gmx.de
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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As specified in section 5.7.2 of the ACPI specification the feature
group string "3.0 _SCP Extensions" implies that the operating system
evaluates the _SCP control method with additional parameters.
However the ACPI thermal driver evaluates the _SCP control method
without those additional parameters, conflicting with the above
feature group string advertised to the firmware thru _OSI.
Stop advertising support for this feature string to avoid confusing
the ACPI firmware.
Fixes: e5f660ebef68 ("ACPI / osi: Collect _OSI handling into one single file")
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20250410165456.4173-2-W_Armin@gmx.de
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The main CPUID header <asm/cpuid.h> was originally a storefront for the
headers:
<asm/cpuid/api.h>
<asm/cpuid/leaf_0x2_api.h>
Now that the latter CPUID(0x2) header has been merged into the former,
there is no practical difference between <asm/cpuid.h> and
<asm/cpuid/api.h>.
Migrate all users to the <asm/cpuid/api.h> header, in preparation of
the removal of <asm/cpuid.h>.
Don't remove <asm/cpuid.h> just yet, in case some new code in -next
started using it.
Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: John Ogness <john.ogness@linutronix.de>
Cc: x86-cpuid@lists.linux.dev
Link: https://lore.kernel.org/r/20250508150240.172915-3-darwi@linutronix.de
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Emit a warning that includes return code in a readable format. Example:
ACPI: Failed to initialize tables, status=0x5 (AE_NOT_FOUND)
No other functional changes intended.
Signed-off-by: Bartosz Szczepanek <bsz@amazon.de>
Link: https://patch.msgid.link/20250423085637.38658-1-bsz@amazon.de
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The fwnode.h is not supposed to be used by the drivers as it
has the definitions for the core parts for different device
property provider implementations. Drop it.
Note, that fwnode API for drivers is provided in property.h
which is included here.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Link: https://patch.msgid.link/20250331072311.3987967-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Perf and resctrl users need an enumeration of which memory addresses
are bound to which "region" tag.
Parse the ACPI MRRM table and add /sys entries for each memory range
describing base address, length, NUMA node, and which region tags apply
for same-socket and cross-socket access.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://patch.msgid.link/20250505173819.419271-3-tony.luck@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The resctrl file system code needs to know how many region tags
are supported. Parse the ACPI MRRM table and save the max_mem_region
value.
Provide a function for resctrl to collect that value.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Link: https://patch.msgid.link/20250505173819.419271-2-tony.luck@intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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* acpica: (30 commits)
ACPICA: Update copyright year
ACPICA: Logfile: Changes for version 20250404
ACPICA: Replace strncpy() with memcpy()
ACPICA: Apply ACPI_NONSTRING in more places
ACPICA: Avoid sequence overread in call to strncmp()
ACPICA: Adjust the position of code lines
ACPICA: actbl2.h: ACPI 6.5: RAS2: Rename structure and field names of the RAS2 table
ACPICA: Apply ACPI_NONSTRING
ACPICA: Introduce ACPI_NONSTRING
ACPICA: actbl2.h: ERDT: Add typedef and other definitions
ACPICA: infrastructure: Add new DMT_BUF types and shorten a long name
ACPICA: Utilities: Fix spelling mistake "Incremement" -> "Increment"
ACPICA: MRRM: Some cleanups
ACPICA: actbl2: Add definitions for RIMT
ACPICA: actbl2.h: MRRM: Add typedef and other definitions
ACPICA: infrastructure: Add new header and ACPI_DMT_BUF26 types
ACPICA: Interpret SIDP structures in DMAR
ACPICA: utilities: Fix overflow check in vsnprintf()
ACPICA: Apply pack(1) to union aml_resource
ACPICA: Drop stale comment about the header file content
...
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ACPICA commit 45253be18b3f37d46cd0072aa3f8a0a21a70e0a4
Changes needed by acpisrc to update copyright year when building for
release.
Link: https://github.com/acpica/acpica/commit/45253be1
Signed-off-by: Saket Dumbre <saket.dumbre@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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ACPICA commit 83019b471e1902151e67c588014ba2d09fa099a3
strncpy() is deprecated for NUL-terminated destination buffers[1].
Use memcpy() for length-bounded destinations.
Link: https://github.com/KSPP/linux/issues/90 [1]
Link: https://github.com/acpica/acpica/commit/83019b47
Signed-off-by: Ahmed Salem <x0rw3ll@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/1910878.atdPhlSkOF@rjwysocki.net
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ACPICA commit 1035a3d453f7dd49a235a59ee84ebda9d2d2f41b
Add ACPI_NONSTRING for destination char arrays without a terminating NUL
character. This is a follow-up to commit 35ad99236f3a ("ACPICA: Apply
ACPI_NONSTRING") where not all instances received the same treatment, in
preparation for replacing strncpy() calls with memcpy()
Link: https://github.com/acpica/acpica/commit/1035a3d4
Signed-off-by: Ahmed Salem <x0rw3ll@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/3833065.MHq7AAxBmi@rjwysocki.net
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ACPICA commit 5da6daf5691169d2bf2e5c9e55baf093757312ca
In the acpica/utcache.c file, adjust the position of the
"ACPI_MEM_TRACKING(cache->total_allocated++);" code line
to ensure that the increment operation on total_allocated
is included within the ACPI_DBG_TRACK_ALLOCATIONS configuration.
Link: https://github.com/acpica/acpica/commit/5da6daf5
Signed-off-by: Zhe Qiao <qiaozhe@iscas.ac.cn>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/2670567.Lt9SDvczpP@rjwysocki.net
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ACPICA commit ed68cb8e082e3bfbba02814af4fd5a61247f491b
Add ACPI_NONSTRING annotations for places found that are using char
arrays without a terminating NUL character. These were found during
Linux kernel builds and after looking for instances of arrays of size
ACPI_NAMESEG_SIZE.
Link: https://github.com/acpica/acpica/commit/ed68cb8e
Signed-off-by: Kees Cook <kees@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/2039736.usQuhbGJ8B@rjwysocki.net
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ACPICA commit 0faa6e20cfe56fdaefc37a38f8fd04e3137fcdad
There is a spelling mistake in a literal string. Fix it.
Fixes: ff5340f8ac94 ("ACPICA: Reference count: add additional debugging details")
Link: https://github.com/acpica/acpica/commit/0faa6e20
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/7814589.EvYhyI6sBW@rjwysocki.net
[ rjw: Fix up the Fixes: tag ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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ACPICA commit d9d59b7918514ae55063b93f3ec041b1a569bf49
The old version breaks sprintf on 64-bit systems for buffers
outside [0..UINT32_MAX].
Link: https://github.com/acpica/acpica/commit/d9d59b79
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/4994935.GXAFRqVoOG@rjwysocki.net
Signed-off-by: gldrk <me@rarity.fan>
[ rjw: Added the tag from gldrk ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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A single call to einj_get_available_error_type() in init function is
sufficient to save the return value in a global variable to be used
later in various places in the code.
This change has no functional impact, but only removes unnecessary
redundant function calls.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Zaid Alali <zaidal@os.amperecomputing.com>
Link: https://patch.msgid.link/20250506213814.2365788-5-zaidal@os.amperecomputing.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add the TUXEDO InfinityBook Pro AMD Gen9 to the acpi_ec_no_wakeup[]
quirk list to prevent spurious wakeups.
Signed-off-by: Werner Sembach <wse@tuxedocomputers.com>
Link: https://patch.msgid.link/20250508111625.12149-1-wse@tuxedocomputers.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The ACPI specification requires that battery rate is always positive,
but the kernel ABI for POWER_SUPPLY_PROP_CURRENT_NOW
(Documentation/ABI/testing/sysfs-class-power) specifies that it should
be negative when a battery is discharging. When reporting CURRENT_NOW,
massage the value to match the documented ABI.
This only changes the sign of `current_now` and not `power_now` because
documentation doesn't describe any particular meaning for `power_now` so
leaving `power_now` unchanged is less likely to confuse userspace
unnecessarily, whereas becoming consistent with the documented ABI is
worth potentially confusing clients that read `current_now`.
Signed-off-by: Peter Marheine <pmarheine@chromium.org>
Link: https://patch.msgid.link/20250508024146.1436129-1-pmarheine@chromium.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The fwnode_handle pointer passed into pci_register_io_range() is not
modified, so annotate it as const.
Signed-off-by: Pei Xiao <xiaopei01@kylinos.cn>
Link: https://patch.msgid.link/7ae7866ab8b897253703ecee44c688b6832d49a3.1745552799.git.xiaopei01@kylinos.cn
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The vendor name for MECHREVO was incorrectly spelled in commit
b53f09ecd602 ("ACPI: resource: Do IRQ override on MECHREV GM7XG0M").
Correct this typo in this trivial patch.
Fixes: b53f09ecd602 ("ACPI: resource: Do IRQ override on MECHREV GM7XG0M")
Signed-off-by: Mingcong Bai <jeffbai@aosc.io>
Link: https://patch.msgid.link/20250417073947.47419-1-jeffbai@aosc.io
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The original PPTT code had a bug where the processor subtable length
was not correctly validated when encountering a truncated
acpi_pptt_processor node.
Commit 7ab4f0e37a0f4 ("ACPI PPTT: Fix coding mistakes in a couple of
sizeof() calls") attempted to fix this by validating the size is as
large as the acpi_pptt_processor node structure. This introduced a
regression where the last processor node in the PPTT table is ignored
if it doesn't contain any private resources. That results errors like:
ACPI PPTT: PPTT table found, but unable to locate core XX (XX)
ACPI: SPE must be homogeneous
Furthermore, it fails in a common case where the node length isn't
equal to the acpi_pptt_processor structure size, leaving the original
bug in a modified form.
Correct the regression by adjusting the loop termination conditions as
suggested by the bug reporters. An additional check performed after
the subtable node type is detected, validates the acpi_pptt_processor
node is fully contained in the PPTT table. Repeating the check in
acpi_pptt_leaf_node() is largely redundant as the node is already
known to be fully contained in the table.
The case where a final truncated node's parent property is accepted,
but the node itself is rejected should not be considered a bug.
Fixes: 7ab4f0e37a0f4 ("ACPI PPTT: Fix coding mistakes in a couple of sizeof() calls")
Reported-by: Maximilian Heyne <mheyne@amazon.de>
Closes: https://lore.kernel.org/linux-acpi/20250506-draco-taped-15f475cd@mheyne-amazon/
Reported-by: Yicong Yang <yangyicong@hisilicon.com>
Closes: https://lore.kernel.org/linux-acpi/20250507035124.28071-1-yangyicong@huawei.com/
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Tested-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Maximilian Heyne <mheyne@amazon.de>
Cc: All applicable <stable@vger.kernel.org> # 7ab4f0e37a0f4: ACPI PPTT: Fix coding mistakes ...
Link: https://patch.msgid.link/20250508023025.1301030-1-jeremy.linton@arm.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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SDEI usually initialize with the ACPI table, but on platforms where
ACPI is not used, the SDEI feature can still be used to handle
specific firmware calls or other customized purposes. Therefore, it
is not necessary for ARM_SDE_INTERFACE to depend on ACPI_APEI_GHES.
In commit dc4e8c07e9e2 ("ACPI: APEI: explicit init of HEST and GHES
in acpi_init()"), to make APEI ready earlier, sdei_init was moved
into acpi_ghes_init instead of being a standalone initcall, adding
ACPI_APEI_GHES dependency to ARM_SDE_INTERFACE. This restricts the
flexibility and usability of SDEI.
This patch corrects the dependency in Kconfig and splits sdei_init()
into two separate functions: sdei_init() and acpi_sdei_init().
sdei_init() will be called by arch_initcall and will only initialize
the platform driver, while acpi_sdei_init() will initialize the
device from acpi_ghes_init() when ACPI is ready. This allows the
initialization of SDEI without ACPI_APEI_GHES enabled.
Fixes: dc4e8c07e9e2 ("ACPI: APEI: explicit init of HEST and GHES in apci_init()")
Cc: Shuai Xue <xueshuai@linux.alibaba.com>
Signed-off-by: Huang Yiwei <quic_hyiwei@quicinc.com>
Reviewed-by: Shuai Xue <xueshuai@linux.alibaba.com>
Reviewed-by: Gavin Shan <gshan@redhat.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20250507045757.2658795-1-quic_hyiwei@quicinc.com
Signed-off-by: Will Deacon <will@kernel.org>
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Commit 6cb9441bfe8d ("ACPI: APEI: EINJ: Transition to the faux device
interface") updated the APEI error injection driver to use the faux
device interface and now for devices that don't support ACPI, the
following error message is seen on boot:
ERR KERN faux acpi-einj: probe did not succeed, tearing down the device
The APEI error injection driver returns -ENODEV in the probe function
if ACPI is not supported and so after transitioning the driver to the
faux device interface, the error returned from the probe now causes the
above error message to be displayed.
Fix this by moving the code that detects if ACPI is supported to the
einj_init() function to fix the false error message displayed for
devices that don't support ACPI.
Fixes: 6cb9441bfe8d ("ACPI: APEI: EINJ: Transition to the faux device interface")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://patch.msgid.link/20250501124621.1251450-1-jonathanh@nvidia.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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ACPICA commit 1c28da2242783579d59767617121035dafba18c3
This was originally done in NetBSD:
https://github.com/NetBSD/src/commit/b69d1ac3f7702f67edfe412e4392f77d09804910
and is the correct alternative to the smattering of `memcpy`s I
previously contributed to this repository.
This also sidesteps the newly strict checks added in UBSAN:
https://github.com/llvm/llvm-project/commit/792674400f6f04a074a3827349ed0e2ac10067f6
Before this change we see the following UBSAN stack trace in Fuchsia:
#0 0x000021afcfdeca5e in acpi_rs_get_address_common(struct acpi_resource*, union aml_resource*) ../../third_party/acpica/source/components/resources/rsaddr.c:329 <platform-bus-x86.so>+0x6aca5e
#1.2 0x000021982bc4af3c in ubsan_get_stack_trace() compiler-rt/lib/ubsan/ubsan_diag.cpp:41 <libclang_rt.asan.so>+0x41f3c
#1.1 0x000021982bc4af3c in maybe_print_stack_trace() compiler-rt/lib/ubsan/ubsan_diag.cpp:51 <libclang_rt.asan.so>+0x41f3c
#1 0x000021982bc4af3c in ~scoped_report() compiler-rt/lib/ubsan/ubsan_diag.cpp:395 <libclang_rt.asan.so>+0x41f3c
#2 0x000021982bc4bb6f in handletype_mismatch_impl() compiler-rt/lib/ubsan/ubsan_handlers.cpp:137 <libclang_rt.asan.so>+0x42b6f
#3 0x000021982bc4b723 in __ubsan_handle_type_mismatch_v1 compiler-rt/lib/ubsan/ubsan_handlers.cpp:142 <libclang_rt.asan.so>+0x42723
#4 0x000021afcfdeca5e in acpi_rs_get_address_common(struct acpi_resource*, union aml_resource*) ../../third_party/acpica/source/components/resources/rsaddr.c:329 <platform-bus-x86.so>+0x6aca5e
#5 0x000021afcfdf2089 in acpi_rs_convert_aml_to_resource(struct acpi_resource*, union aml_resource*, struct acpi_rsconvert_info*) ../../third_party/acpica/source/components/resources/rsmisc.c:355 <platform-bus-x86.so>+0x6b2089
#6 0x000021afcfded169 in acpi_rs_convert_aml_to_resources(u8*, u32, u32, u8, void**) ../../third_party/acpica/source/components/resources/rslist.c:137 <platform-bus-x86.so>+0x6ad169
#7 0x000021afcfe2d24a in acpi_ut_walk_aml_resources(struct acpi_walk_state*, u8*, acpi_size, acpi_walk_aml_callback, void**) ../../third_party/acpica/source/components/utilities/utresrc.c:237 <platform-bus-x86.so>+0x6ed24a
#8 0x000021afcfde66b7 in acpi_rs_create_resource_list(union acpi_operand_object*, struct acpi_buffer*) ../../third_party/acpica/source/components/resources/rscreate.c:199 <platform-bus-x86.so>+0x6a66b7
#9 0x000021afcfdf6979 in acpi_rs_get_method_data(acpi_handle, const char*, struct acpi_buffer*) ../../third_party/acpica/source/components/resources/rsutils.c:770 <platform-bus-x86.so>+0x6b6979
#10 0x000021afcfdf708f in acpi_walk_resources(acpi_handle, char*, acpi_walk_resource_callback, void*) ../../third_party/acpica/source/components/resources/rsxface.c:731 <platform-bus-x86.so>+0x6b708f
#11 0x000021afcfa95dcf in acpi::acpi_impl::walk_resources(acpi::acpi_impl*, acpi_handle, const char*, acpi::Acpi::resources_callable) ../../src/devices/board/lib/acpi/acpi-impl.cc:41 <platform-bus-x86.so>+0x355dcf
#12 0x000021afcfaa8278 in acpi::device_builder::gather_resources(acpi::device_builder*, acpi::Acpi*, fidl::any_arena&, acpi::Manager*, acpi::device_builder::gather_resources_callback) ../../src/devices/board/lib/acpi/device-builder.cc:84 <platform-bus-x86.so>+0x368278
#13 0x000021afcfbddb87 in acpi::Manager::configure_discovered_devices(acpi::Manager*) ../../src/devices/board/lib/acpi/manager.cc:75 <platform-bus-x86.so>+0x49db87
#14 0x000021afcf99091d in publish_acpi_devices(acpi::Manager*, zx_device_t*, zx_device_t*) ../../src/devices/board/drivers/x86/acpi-nswalk.cc:95 <platform-bus-x86.so>+0x25091d
#15 0x000021afcf9c1d4e in x86::X86::do_init(x86::X86*) ../../src/devices/board/drivers/x86/x86.cc:60 <platform-bus-x86.so>+0x281d4e
#16 0x000021afcf9e33ad in λ(x86::X86::ddk_init::(anon class)*) ../../src/devices/board/drivers/x86/x86.cc:77 <platform-bus-x86.so>+0x2a33ad
#17 0x000021afcf9e313e in fit::internal::target<(lambda at../../src/devices/board/drivers/x86/x86.cc:76:19), false, false, std::__2::allocator<std::byte>, void>::invoke(void*) ../../sdk/lib/fit/include/lib/fit/internal/function.h:183 <platform-bus-x86.so>+0x2a313e
#18 0x000021afcfbab4c7 in fit::internal::function_base<16UL, false, void(), std::__2::allocator<std::byte>>::invoke(const fit::internal::function_base<16UL, false, void (), std::__2::allocator<std::byte> >*) ../../sdk/lib/fit/include/lib/fit/internal/function.h:522 <platform-bus-x86.so>+0x46b4c7
#19 0x000021afcfbab342 in fit::function_impl<16UL, false, void(), std::__2::allocator<std::byte>>::operator()(const fit::function_impl<16UL, false, void (), std::__2::allocator<std::byte> >*) ../../sdk/lib/fit/include/lib/fit/function.h:315 <platform-bus-x86.so>+0x46b342
#20 0x000021afcfcd98c3 in async::internal::retained_task::Handler(async_dispatcher_t*, async_task_t*, zx_status_t) ../../sdk/lib/async/task.cc:24 <platform-bus-x86.so>+0x5998c3
#21 0x00002290f9924616 in λ(const driver_runtime::Dispatcher::post_task::(anon class)*, std::__2::unique_ptr<driver_runtime::callback_request, std::__2::default_delete<driver_runtime::callback_request> >, zx_status_t) ../../src/devices/bin/driver_runtime/dispatcher.cc:789 <libdriver_runtime.so>+0x10a616
#22 0x00002290f9924323 in fit::internal::target<(lambda at../../src/devices/bin/driver_runtime/dispatcher.cc:788:7), true, false, std::__2::allocator<std::byte>, void, std::__2::unique_ptr<driver_runtime::callback_request, std::__2::default_delete<driver_runtime::callback_request>>, int>::invoke(void*, std::__2::unique_ptr<driver_runtime::callback_request, std::__2::default_delete<driver_runtime::callback_request> >, int) ../../sdk/lib/fit/include/lib/fit/internal/function.h:128 <libdriver_runtime.so>+0x10a323
#23 0x00002290f9904b76 in fit::internal::function_base<24UL, true, void(std::__2::unique_ptr<driver_runtime::callback_request, std::__2::default_delete<driver_runtime::callback_request>>, int), std::__2::allocator<std::byte>>::invoke(const fit::internal::function_base<24UL, true, void (std::__2::unique_ptr<driver_runtime::callback_request, std::__2::default_delete<driver_runtime::callback_request> >, int), std::__2::allocator<std::byte> >*, std::__2::unique_ptr<driver_runtime::callback_request, std::__2::default_delete<driver_runtime::callback_request> >, int) ../../sdk/lib/fit/include/lib/fit/internal/function.h:522 <libdriver_runtime.so>+0xeab76
#24 0x00002290f9904831 in fit::callback_impl<24UL, true, void(std::__2::unique_ptr<driver_runtime::callback_request, std::__2::default_delete<driver_runtime::callback_request>>, int), std::__2::allocator<std::byte>>::operator()(fit::callback_impl<24UL, true, void (std::__2::unique_ptr<driver_runtime::callback_request, std::__2::default_delete<driver_runtime::callback_request> >, int), std::__2::allocator<std::byte> >*, std::__2::unique_ptr<driver_runtime::callback_request, std::__2::default_delete<driver_runtime::callback_request> >, int) ../../sdk/lib/fit/include/lib/fit/function.h:471 <libdriver_runtime.so>+0xea831
#25 0x00002290f98d5adc in driver_runtime::callback_request::Call(driver_runtime::callback_request*, std::__2::unique_ptr<driver_runtime::callback_request, std::__2::default_delete<driver_runtime::callback_request> >, zx_status_t) ../../src/devices/bin/driver_runtime/callback_request.h:74 <libdriver_runtime.so>+0xbbadc
#26 0x00002290f98e1e58 in driver_runtime::Dispatcher::dispatch_callback(driver_runtime::Dispatcher*, std::__2::unique_ptr<driver_runtime::callback_request, std::__2::default_delete<driver_runtime::callback_request> >) ../../src/devices/bin/driver_runtime/dispatcher.cc:1248 <libdriver_runtime.so>+0xc7e58
#27 0x00002290f98e4159 in driver_runtime::Dispatcher::dispatch_callbacks(driver_runtime::Dispatcher*, std::__2::unique_ptr<driver_runtime::Dispatcher::event_waiter, std::__2::default_delete<driver_runtime::Dispatcher::event_waiter> >, fbl::ref_ptr<driver_runtime::Dispatcher>) ../../src/devices/bin/driver_runtime/dispatcher.cc:1308 <libdriver_runtime.so>+0xca159
#28 0x00002290f9918414 in λ(const driver_runtime::Dispatcher::create_with_adder::(anon class)*, std::__2::unique_ptr<driver_runtime::Dispatcher::event_waiter, std::__2::default_delete<driver_runtime::Dispatcher::event_waiter> >, fbl::ref_ptr<driver_runtime::Dispatcher>) ../../src/devices/bin/driver_runtime/dispatcher.cc:353 <libdriver_runtime.so>+0xfe414
#29 0x00002290f991812d in fit::internal::target<(lambda at../../src/devices/bin/driver_runtime/dispatcher.cc:351:7), true, false, std::__2::allocator<std::byte>, void, std::__2::unique_ptr<driver_runtime::Dispatcher::event_waiter, std::__2::default_delete<driver_runtime::Dispatcher::event_waiter>>, fbl::ref_ptr<driver_runtime::Dispatcher>>::invoke(void*, std::__2::unique_ptr<driver_runtime::Dispatcher::event_waiter, std::__2::default_delete<driver_runtime::Dispatcher::event_waiter> >, fbl::ref_ptr<driver_runtime::Dispatcher>) ../../sdk/lib/fit/include/lib/fit/internal/function.h:128 <libdriver_runtime.so>+0xfe12d
#30 0x00002290f9906fc7 in fit::internal::function_base<8UL, true, void(std::__2::unique_ptr<driver_runtime::Dispatcher::event_waiter, std::__2::default_delete<driver_runtime::Dispatcher::event_waiter>>, fbl::ref_ptr<driver_runtime::Dispatcher>), std::__2::allocator<std::byte>>::invoke(const fit::internal::function_base<8UL, true, void (std::__2::unique_ptr<driver_runtime::Dispatcher::event_waiter, std::__2::default_delete<driver_runtime::Dispatcher::event_waiter> >, fbl::ref_ptr<driver_runtime::Dispatcher>), std::__2::allocator<std::byte> >*, std::__2::unique_ptr<driver_runtime::Dispatcher::event_waiter, std::__2::default_delete<driver_runtime::Dispatcher::event_waiter> >, fbl::ref_ptr<driver_runtime::Dispatcher>) ../../sdk/lib/fit/include/lib/fit/internal/function.h:522 <libdriver_runtime.so>+0xecfc7
#31 0x00002290f9906c66 in fit::function_impl<8UL, true, void(std::__2::unique_ptr<driver_runtime::Dispatcher::event_waiter, std::__2::default_delete<driver_runtime::Dispatcher::event_waiter>>, fbl::ref_ptr<driver_runtime::Dispatcher>), std::__2::allocator<std::byte>>::operator()(const fit::function_impl<8UL, true, void (std::__2::unique_ptr<driver_runtime::Dispatcher::event_waiter, std::__2::default_delete<driver_runtime::Dispatcher::event_waiter> >, fbl::ref_ptr<driver_runtime::Dispatcher>), std::__2::allocator<std::byte> >*, std::__2::unique_ptr<driver_runtime::Dispatcher::event_waiter, std::__2::default_delete<driver_runtime::Dispatcher::event_waiter> >, fbl::ref_ptr<driver_runtime::Dispatcher>) ../../sdk/lib/fit/include/lib/fit/function.h:315 <libdriver_runtime.so>+0xecc66
#32 0x00002290f98e73d9 in driver_runtime::Dispatcher::event_waiter::invoke_callback(driver_runtime::Dispatcher::event_waiter*, std::__2::unique_ptr<driver_runtime::Dispatcher::event_waiter, std::__2::default_delete<driver_runtime::Dispatcher::event_waiter> >, fbl::ref_ptr<driver_runtime::Dispatcher>) ../../src/devices/bin/driver_runtime/dispatcher.h:543 <libdriver_runtime.so>+0xcd3d9
#33 0x00002290f98e700d in driver_runtime::Dispatcher::event_waiter::handle_event(std::__2::unique_ptr<driver_runtime::Dispatcher::event_waiter, std::__2::default_delete<driver_runtime::Dispatcher::event_waiter> >, async_dispatcher_t*, async::wait_base*, zx_status_t, zx_packet_signal_t const*) ../../src/devices/bin/driver_runtime/dispatcher.cc:1442 <libdriver_runtime.so>+0xcd00d
#34 0x00002290f9918983 in async_loop_owned_event_handler<driver_runtime::Dispatcher::event_waiter>::handle_event(async_loop_owned_event_handler<driver_runtime::Dispatcher::event_waiter>*, async_dispatcher_t*, async::wait_base*, zx_status_t, zx_packet_signal_t const*) ../../src/devices/bin/driver_runtime/async_loop_owned_event_handler.h:59 <libdriver_runtime.so>+0xfe983
#35 0x00002290f9918b9e in async::wait_method<async_loop_owned_event_handler<driver_runtime::Dispatcher::event_waiter>, &async_loop_owned_event_handler<driver_runtime::Dispatcher::event_waiter>::handle_event>::call_handler(async_dispatcher_t*, async_wait_t*, zx_status_t, zx_packet_signal_t const*) ../../sdk/lib/async/include/lib/async/cpp/wait.h:201 <libdriver_runtime.so>+0xfeb9e
#36 0x00002290f99bf509 in async_loop_dispatch_wait(async_loop_t*, async_wait_t*, zx_status_t, zx_packet_signal_t const*) ../../sdk/lib/async-loop/loop.c:394 <libdriver_runtime.so>+0x1a5509
#37 0x00002290f99b9958 in async_loop_run_once(async_loop_t*, zx_time_t) ../../sdk/lib/async-loop/loop.c:343 <libdriver_runtime.so>+0x19f958
#38 0x00002290f99b9247 in async_loop_run(async_loop_t*, zx_time_t, _Bool) ../../sdk/lib/async-loop/loop.c:301 <libdriver_runtime.so>+0x19f247
#39 0x00002290f99ba962 in async_loop_run_thread(void*) ../../sdk/lib/async-loop/loop.c:860 <libdriver_runtime.so>+0x1a0962
#40 0x000041afd176ef30 in start_c11(void*) ../../zircon/third_party/ulib/musl/pthread/pthread_create.c:63 <libc.so>+0x84f30
#41 0x000041afd18a448d in thread_trampoline(uintptr_t, uintptr_t) ../../zircon/system/ulib/runtime/thread.cc:100 <libc.so>+0x1ba48d
Link: https://github.com/acpica/acpica/commit/1c28da22
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://patch.msgid.link/4664267.LvFx2qVVIh@rjwysocki.net
Signed-off-by: Tamir Duberstein <tamird@gmail.com>
[ rjw: Pick up the tag from Tamir ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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For historic reasons there are some TSC-related functions in the
<asm/msr.h> header, even though there's an <asm/tsc.h> header.
To facilitate the relocation of rdtsc{,_ordered}() from <asm/msr.h>
to <asm/tsc.h> and to eventually eliminate the inclusion of
<asm/msr.h> in <asm/tsc.h>, add an explicit <asm/msr.h> dependency
to the source files that reference definitions from <asm/msr.h>.
[ mingo: Clarified the changelog. ]
Signed-off-by: Xin Li (Intel) <xin@zytor.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Juergen Gross <jgross@suse.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Uros Bizjak <ubizjak@gmail.com>
Link: https://lore.kernel.org/r/20250501054241.1245648-1-xin@zytor.com
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Signed-off-by: Ingo Molnar <mingo@kernel.org>
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cppc_set_epp() - write energy performance preference register value,
based on ACPI 6.5, s8.4.6.1.7
cppc_get_auto_act_window() - read autonomous activity window register
value, based on ACPI 6.5, s8.4.6.1.6
cppc_set_auto_act_window() - write autonomous activity window register
value, based on ACPI 6.5, s8.4.6.1.6
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20250411093855.982491-9-zhenglifeng1@huawei.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Modify cppc_get_auto_sel_caps() to cppc_get_auto_sel(). Using a
cppc_perf_caps to carry the value is unnecessary.
Add a check to ensure the pointer 'enable' is not null.
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20250411093855.982491-8-zhenglifeng1@huawei.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Refactor register value get and set ABIs by using cppc_get_reg_val(),
cppc_set_reg_val() and CPPC_REG_VAL_READ().
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20250411093855.982491-7-zhenglifeng1@huawei.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add cppc_set_reg_val() as a generic function for setting CPPC register
values, with this features:
1. Check register. If a register is writeable, it must be a buffer and
can not be null.
2. Extract the operations if register is in PCC out as
cppc_set_reg_val_in_pcc().
This function can be used to reduce some existing code duplication.
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20250411093855.982491-6-zhenglifeng1@huawei.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Extract the operations if register is in pcc out from cppc_get_reg_val()
as cppc_get_reg_val_in_pcc().
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20250411093855.982491-5-zhenglifeng1@huawei.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Rename cppc_get_perf() to cppc_get_reg_val() as a generic function to
read CPPC registers.
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20250411093855.982491-4-zhenglifeng1@huawei.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Optimize cppc_get_perf() with three changes:
1. Change the error kind to "no such device" when pcc_ss_id < 0, as
other register value getting functions.
2. Add a check to ensure the pointer 'perf' is no null.
3. Add a check to verify if the register is supported to be read before
using it. The logic is:
(1) If the register is of the integer type, check whether the
register is optional and its value is 0. If yes, the register
is not supported.
(2) If the register is of other types, a null one is not supported.
4. Return the result of cpc_read() instead of 0.
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20250411093855.982491-3-zhenglifeng1@huawei.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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In ACPI 6.5, s8.4.6.1 _CPC (Continuous Performance Control), whether
each of the per-cpu cpc_regs[] is mandatory or optional is defined.
Since the CPC_SUPPORTED() check is only for optional _CPC fields,
another macro to check if the field is optional is needed.
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20250411093855.982491-2-zhenglifeng1@huawei.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The PCC driver now handles mapping and unmapping of shared memory
areas as part of pcc_mbox_{request,free}_channel(). Without these before,
this ACPI CPPC driver did handling of those mappings like several
other PCC mailbox client drivers.
There were redundant operations, leading to unnecessary code. Maintaining
the consistency across these driver was harder due to scattered handling
of shmem.
Just use the mapped shmem and remove all redundant operations from this
driver.
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://patch.msgid.link/20250411113144.1151094-2-sudeep.holla@arm.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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The PCC driver now handles mapping and unmapping of shared memory
areas as part of pcc_mbox_{request,free}_channel(). Without these before,
this ACPI PCC opregion driver did handling of those mappings like several
other PCC mailbox client drivers.
There were redundant operations, leading to unnecessary code. Maintaining
the consistency across these driver was harder due to scattered handling
of shmem.
Just use the mapped shmem and remove all redundant operations from this
driver.
Tested-by: Adam Young <admiyo@os.amperecomputing.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://patch.msgid.link/20250411113144.1151094-1-sudeep.holla@arm.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Linus Torvalds
Rafael J. Wysocki
Anil S Keshavamurthy
Armin Wolf
Alexandre Ghiti
Ingo Molnar
Xin Li (Intel)
Ahmed S. Darwish
Bartosz Szczepanek
Andy Shevchenko
Tony Luck
Saket Dumbre
Ahmed Salem
Zhe Qiao
Kees Cook
Colin Ian King
gldrk
Zaid Alali
Werner Sembach
Peter Marheine
Pei Xiao
Mingcong Bai
Jeremy Linton
Huang Yiwei
Jon Hunter
Tamir Duberstein
Lifeng Zheng
Sudeep Holla