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506 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 Linus Torvalds
|
1464677662 |
Merge tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
"New drivers:
- AMD Host System Management Port (HSMP)
- Intel Software Defined Silicon
Removed drivers (functionality folded into other drivers):
- intel_cht_int33fe_microb
- surface3_button
amd-pmc:
- s2idle bug-fixes
- Support for AMD Spill to DRAM STB feature
hp-wmi:
- Fix SW_TABLET_MODE detection method (and other fixes)
- Support omen thermal profile policy v1
serial-multi-instantiate:
- Add SPI device support
- Add support for CS35L41 amplifiers used in new laptops
think-lmi:
- syfs-class-firmware-attributes Certificate authentication support
thinkpad_acpi:
- Fixes + quirks
- Add platform_profile support on AMD based ThinkPads
x86-android-tablets:
- Improve Asus ME176C / TF103C support
- Support Nextbook Ares 8, Lenovo Tab 2 830 and 1050 tablets
Lots of various other small fixes and hardware-id additions"
* tag 'platform-drivers-x86-v5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (60 commits)
platform/x86: think-lmi: Certificate authentication support
Documentation: syfs-class-firmware-attributes: Lenovo Certificate support
platform/x86: amd-pmc: Only report STB errors when STB enabled
platform/x86: amd-pmc: Drop CPU QoS workaround
platform/x86: amd-pmc: Output error codes in messages
platform/x86: amd-pmc: Move to later in the suspend process
ACPI / x86: Add support for LPS0 callback handler
platform/x86: thinkpad_acpi: consistently check fan_get_status return.
platform/x86: hp-wmi: support omen thermal profile policy v1
platform/x86: hp-wmi: Changing bios_args.data to be dynamically allocated
platform/x86: hp-wmi: Fix 0x05 error code reported by several WMI calls
platform/x86: hp-wmi: Fix SW_TABLET_MODE detection method
platform/x86: hp-wmi: Fix hp_wmi_read_int() reporting error (0x05)
platform/x86: amd-pmc: Validate entry into the deepest state on resume
platform/x86: thinkpad_acpi: Don't use test_bit on an integer
platform/x86: thinkpad_acpi: Fix compiler warning about uninitialized err variable
platform/x86: thinkpad_acpi: clean up dytc profile convert
platform/x86: x86-android-tablets: Depend on EFI and SPI
platform/x86: amd-pmc: uninitialized variable in amd_pmc_s2d_init()
platform/x86: intel-uncore-freq: fix uncore_freq_common_init() error codes
...
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||
|
Linus Torvalds
|
02b82b02c3 |
Merge tag 'pm-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These are mostly fixes and cleanups all over the code and a new piece
of documentation for Intel uncore frequency scaling.
Functionality-wise, the intel_idle driver will support Sapphire Rapids
Xeons natively now (with some extra facilities for controlling
C-states more precisely on those systems), virtual guests will take
the ACPI S4 hardware signature into account by default, the
intel_pstate driver will take the defualt EPP value from the firmware,
cpupower utility will support the AMD P-state driver added in the
previous cycle, and there is a new tracer utility for that driver.
Specifics:
- Allow device_pm_check_callbacks() to be called from interrupt
context without issues (Dmitry Baryshkov).
- Modify devm_pm_runtime_enable() to automatically handle
pm_runtime_dont_use_autosuspend() at driver exit time (Douglas
Anderson).
- Make the schedutil cpufreq governor use to_gov_attr_set() instead
of open coding it (Kevin Hao).
- Replace acpi_bus_get_device() with acpi_fetch_acpi_dev() in the
cpufreq longhaul driver (Rafael Wysocki).
- Unify show() and store() naming in cpufreq and make it use
__ATTR_XX (Lianjie Zhang).
- Make the intel_pstate driver use the EPP value set by the firmware
by default (Srinivas Pandruvada).
- Re-order the init checks in the powernow-k8 cpufreq driver (Mario
Limonciello).
- Make the ACPI processor idle driver check for architectural support
for LPI to avoid using it on x86 by mistake (Mario Limonciello).
- Add Sapphire Rapids Xeon support to the intel_idle driver (Artem
Bityutskiy).
- Add 'preferred_cstates' module argument to the intel_idle driver to
work around C1 and C1E handling issue on Sapphire Rapids (Artem
Bityutskiy).
- Add core C6 optimization on Sapphire Rapids to the intel_idle
driver (Artem Bityutskiy).
- Optimize the haltpoll cpuidle driver a bit (Li RongQing).
- Remove leftover text from intel_idle() kerneldoc comment and fix up
white space in intel_idle (Rafael Wysocki).
- Fix load_image_and_restore() error path (Ye Bin).
- Fix typos in comments in the system wakeup hadling code (Tom Rix).
- Clean up non-kernel-doc comments in hibernation code (Jiapeng
Chong).
- Fix __setup handler error handling in system-wide suspend and
hibernation core code (Randy Dunlap).
- Add device name to suspend_report_result() (Youngjin Jang).
- Make virtual guests honour ACPI S4 hardware signature by default
(David Woodhouse).
- Block power off of a parent PM domain unless child is in deepest
state (Ulf Hansson).
- Use dev_err_probe() to simplify error handling for generic PM
domains (Ahmad Fatoum).
- Fix sleep-in-atomic bug caused by genpd_debug_remove() (Shawn Guo).
- Document Intel uncore frequency scaling (Srinivas Pandruvada).
- Add DTPM hierarchy description (Daniel Lezcano).
- Change the locking scheme in DTPM (Daniel Lezcano).
- Fix dtpm_cpu cleanup at exit time and missing virtual DTPM pointer
release (Daniel Lezcano).
- Make dtpm_node_callback[] static (kernel test robot).
- Fix spelling mistake "initialze" -> "initialize" in
dtpm_create_hierarchy() (Colin Ian King).
- Add tracer tool for the amd-pstate driver (Jinzhou Su).
- Fix PC6 displaying in turbostat on some systems (Artem Bityutskiy).
- Add AMD P-State support to the cpupower utility (Huang Rui)"
* tag 'pm-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (58 commits)
cpufreq: powernow-k8: Re-order the init checks
cpuidle: intel_idle: Drop redundant backslash at line end
cpuidle: intel_idle: Update intel_idle() kerneldoc comment
PM: hibernate: Honour ACPI hardware signature by default for virtual guests
cpufreq: intel_pstate: Use firmware default EPP
cpufreq: unify show() and store() naming and use __ATTR_XX
PM: core: keep irq flags in device_pm_check_callbacks()
cpuidle: haltpoll: Call cpuidle_poll_state_init() later
Documentation: amd-pstate: add tracer tool introduction
tools/power/x86/amd_pstate_tracer: Add tracer tool for AMD P-state
tools/power/x86/intel_pstate_tracer: make tracer as a module
cpufreq: amd-pstate: Add more tracepoint for AMD P-State module
PM: sleep: Add device name to suspend_report_result()
turbostat: fix PC6 displaying on some systems
intel_idle: add core C6 optimization for SPR
intel_idle: add 'preferred_cstates' module argument
intel_idle: add SPR support
PM: runtime: Have devm_pm_runtime_enable() handle pm_runtime_dont_use_autosuspend()
ACPI: processor idle: Check for architectural support for LPI
cpuidle: PSCI: Move the `has_lpi` check to the beginning of the function
...
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 Rafael J. Wysocki
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8a9bd50a9d |
Merge branches 'acpi-soc', 'acpi-video' and 'acpi-apei'
Merge ACPI SoC drivers changes, ACPI backlight driver changes and APEI changes for 5.18-rc1: - Make the ACPI driver for Intel SoCs (LPSS) let the SPI driver know the exact type of the controller (Andy Shevchenko). - Force native backlight mode on Clevo NL5xRU and NL5xNU (Werner Sembach). - Fix return value of __setup handlers in the APEI code (Randy Dunlap). - Add Arm Generic Diagnostic Dump and Reset device driver (Ilkka Koskinen). - Limit printable size of BERT table data (Darren Hart). - Fix up HEST and GHES initialization (Shuai Xue). * acpi-soc: ACPI: LPSS: Provide an SSP type to the driver ACPI: LPSS: Constify properties member in struct lpss_device_desc ACPI: platform: Constify properties parameter in acpi_create_platform_device() * acpi-video: ACPI: video: Force backlight native for Clevo NL5xRU and NL5xNU * acpi-apei: ACPI: AGDI: Add driver for Arm Generic Diagnostic Dump and Reset device ACPI/APEI: Limit printable size of BERT table data ACPI: APEI: fix return value of __setup handlers ACPI: APEI: rename ghes_init() with an "acpi_" prefix ACPI: APEI: explicit init of HEST and GHES in apci_init() |
||
 Mario Limonciello
|
20e1d6402a |
ACPI / x86: Add support for LPS0 callback handler
Currenty the latest thing run during a suspend to idle attempt is the LPS0 `prepare_late` callback and the earliest thing is the `resume_early` callback. There is a desire for the `amd-pmc` driver to suspend later in the suspend process (ideally the very last thing), so create a callback that it or any other driver can hook into to do this. Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/20220317141445.6498-1-mario.limonciello@amd.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> |
||
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Rafael J. Wysocki
|
c42fa24b44 |
ACPI: bus: Avoid using CPPC if not supported by firmware
If the platform firmware indicates that it does not support CPPC by clearing the OSC_SB_CPC_SUPPORT and OSC_SB_CPCV2_SUPPORT bits in the platform _OSC capabilities mask, avoid attempting to evaluate _CPC which may fail in that case. Because the OSC_SB_CPC_SUPPORT and OSC_SB_CPCV2_SUPPORT bits are only added to the supported platform capabilities mask on x86, when X86_FEATURE_HWP is supported, allow _CPC to be evaluated regardless in the other cases. Link: https://lore.kernel.org/linux-acpi/CAJZ5v0i=ecAksq0TV+iLVObm-=fUfdqPABzzkgm9K6KxO1ZCcg@mail.gmail.com Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by: Mario Limonciello <mario.limonciello@amd.com> Acked-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> |
||
 David Woodhouse
|
f6c46b1d62 |
PM: hibernate: Honour ACPI hardware signature by default for virtual guests
The ACPI specification says that OSPM should refuse to restore from hibernate if the hardware signature changes, and should boot from scratch. However, real BIOSes often vary the hardware signature in cases where we *do* want to resume from hibernate, so Linux doesn't follow the spec by default. However, in a virtual environment there's no reason for the VMM to vary the hardware signature *unless* it wants to trigger a clean reboot as defined by the ACPI spec. So enable the check by default if a hypervisor is detected. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
||
 Andy Shevchenko
|
2cbfae0f50 |
ACPI: platform: Constify properties parameter in acpi_create_platform_device()
Properties are not and should not be changed in the callee, hence constify properties parameter in acpi_create_platform_device(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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Linus Torvalds
|
362f533a2a |
Merge tag 'cxl-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull CXL (Compute Express Link) updates from Dan Williams:
"The highlight is initial support for CXL memory hotplug. The static
NUMA node (ACPI SRAT Physical Address to Proximity Domain) information
known to platform firmware is extended to support the potential
performance-class / memory-target nodes dynamically created from
available CXL memory device capacity.
New unit test infrastructure is added for validating health
information payloads.
Fixes to module reload stress and stack usage from exposure in -next
are included. A symbol rename and some other miscellaneous fixups are
included as well.
Summary:
- Rework ACPI sub-table infrastructure to optionally be used outside
of __init scenarios and use it for CEDT.CFMWS sub-table parsing.
- Add support for extending num_possible_nodes by the potential
hotplug CXL memory ranges
- Extend tools/testing/cxl with mock memory device health information
- Fix a module-reload workqueue race
- Fix excessive stack-frame usage
- Rename the driver context data structure from "cxl_mem" since that
name collides with a proposed driver name
- Use EXPORT_SYMBOL_NS_GPL instead of -DDEFAULT_SYMBOL_NAMESPACE at
build time"
* tag 'cxl-for-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl:
cxl/core: Remove cxld_const_init in cxl_decoder_alloc()
cxl/pmem: Fix module reload vs workqueue state
ACPI: NUMA: Add a node and memblk for each CFMWS not in SRAT
cxl/test: Mock acpi_table_parse_cedt()
cxl/acpi: Convert CFMWS parsing to ACPI sub-table helpers
ACPI: Add a context argument for table parsing handlers
ACPI: Teach ACPI table parsing about the CEDT header format
ACPI: Keep sub-table parsing infrastructure available for modules
tools/testing/cxl: add mock output for the GET_HEALTH_INFO command
cxl/memdev: Remove unused cxlmd field
cxl/core: Convert to EXPORT_SYMBOL_NS_GPL
cxl/memdev: Change cxl_mem to a more descriptive name
cxl/mbox: Remove bad comment
cxl/pmem: Fix reference counting for delayed work
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Linus Torvalds
|
b35b6d4d71 |
Merge tag 'pm-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"The most signigicant change here is the addition of a new cpufreq
'P-state' driver for AMD processors as a better replacement for the
venerable acpi-cpufreq driver.
There are also other cpufreq updates (in the core, intel_pstate, ARM
drivers), PM core updates (mostly related to adding new macros for
declaring PM operations which should make the lives of driver
developers somewhat easier), and a bunch of assorted fixes and
cleanups.
Summary:
- Add new P-state driver for AMD processors (Huang Rui).
- Fix initialization of min and max frequency QoS requests in the
cpufreq core (Rafael Wysocki).
- Fix EPP handling on Alder Lake in intel_pstate (Srinivas
Pandruvada).
- Make intel_pstate update cpuinfo.max_freq when notified of HWP
capabilities changes and drop a redundant function call from that
driver (Rafael Wysocki).
- Improve IRQ support in the Qcom cpufreq driver (Ard Biesheuvel,
Stephen Boyd, Vladimir Zapolskiy).
- Fix double devm_remap() in the Mediatek cpufreq driver (Hector
Yuan).
- Introduce thermal pressure helpers for cpufreq CPU cooling (Lukasz
Luba).
- Make cpufreq use default_groups in kobj_type (Greg Kroah-Hartman).
- Make cpuidle use default_groups in kobj_type (Greg Kroah-Hartman).
- Fix two comments in cpuidle code (Jason Wang, Yang Li).
- Allow model-specific normal EPB value to be used in the intel_epb
sysfs attribute handling code (Srinivas Pandruvada).
- Simplify locking in pm_runtime_put_suppliers() (Rafael Wysocki).
- Add safety net to supplier device release in the runtime PM core
code (Rafael Wysocki).
- Capture device status before disabling runtime PM for it (Rafael
Wysocki).
- Add new macros for declaring PM operations to allow drivers to
avoid guarding them with CONFIG_PM #ifdefs or __maybe_unused and
update some drivers to use these macros (Paul Cercueil).
- Allow ACPI hardware signature to be honoured during restore from
hibernation (David Woodhouse).
- Update outdated operating performance points (OPP) documentation
(Tang Yizhou).
- Reduce log severity for informative message regarding frequency
transition failures in devfreq (Tzung-Bi Shih).
- Add DRAM frequency controller devfreq driver for Allwinner sunXi
SoCs (Samuel Holland).
- Add missing COMMON_CLK dependency to sun8i devfreq driver (Arnd
Bergmann).
- Add support for new layout of Psys PowerLimit Register on SPR to
the Intel RAPL power capping driver (Zhang Rui).
- Fix typo in a comment in idle_inject.c (Jason Wang).
- Remove unused function definition from the DTPM (Dynamit Thermal
Power Management) power capping framework (Daniel Lezcano).
- Reduce DTPM trace verbosity (Daniel Lezcano)"
* tag 'pm-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (53 commits)
x86, sched: Fix undefined reference to init_freq_invariance_cppc() build error
cpufreq: amd-pstate: Fix Kconfig dependencies for AMD P-State
cpufreq: amd-pstate: Fix struct amd_cpudata kernel-doc comment
cpuidle: use default_groups in kobj_type
x86: intel_epb: Allow model specific normal EPB value
MAINTAINERS: Add AMD P-State driver maintainer entry
Documentation: amd-pstate: Add AMD P-State driver introduction
cpufreq: amd-pstate: Add AMD P-State performance attributes
cpufreq: amd-pstate: Add AMD P-State frequencies attributes
cpufreq: amd-pstate: Add boost mode support for AMD P-State
cpufreq: amd-pstate: Add trace for AMD P-State module
cpufreq: amd-pstate: Introduce the support for the processors with shared memory solution
cpufreq: amd-pstate: Add fast switch function for AMD P-State
cpufreq: amd-pstate: Introduce a new AMD P-State driver to support future processors
ACPI: CPPC: Add CPPC enable register function
ACPI: CPPC: Check present CPUs for determining _CPC is valid
ACPI: CPPC: Implement support for SystemIO registers
x86/msr: Add AMD CPPC MSR definitions
x86/cpufeatures: Add AMD Collaborative Processor Performance Control feature flag
cpufreq: use default_groups in kobj_type
...
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 Sudeep Holla
|
77e2a04745 |
ACPI: PCC: Implement OperationRegion handler for the PCC Type 3 subtype
PCC OpRegion provides a mechanism to communicate with the platform
directly from the AML. PCCT provides the list of PCC channel available
in the platform, a subset or all of them can be used in PCC Opregion.
This patch registers the PCC OpRegion handler before ACPI tables are
loaded. This relies on the special context data passed to identify and
set up the PCC channel before the OpRegion handler is executed for the
first time.
Typical PCC Opregion declaration looks like this:
OperationRegion (PFRM, PCC, 2, 0x74)
Field (PFRM, ByteAcc, NoLock, Preserve)
{
SIGN, 32,
FLGS, 32,
LEN, 32,
CMD, 32,
DATA, 800
}
It contains four named double words followed by 100 bytes of buffer
names DATA.
ASL can fill out the buffer something like:
/* Create global or local buffer */
Name (BUFF, Buffer (0x0C){})
/* Create double word fields over the buffer */
CreateDWordField (BUFF, 0x0, WD0)
CreateDWordField (BUFF, 0x04, WD1)
CreateDWordField (BUFF, 0x08, WD2)
/* Fill the named fields */
WD0 = 0x50434300
SIGN = BUFF
WD0 = 1
FLGS = BUFF
WD0 = 0x10
LEN = BUFF
/* Fill the payload in the DATA buffer */
WD0 = 0
WD1 = 0x08
WD2 = 0
DATA = BUFF
/* Write to CMD field to trigger handler */
WD0 = 0x4404
CMD = BUFF
This buffer is received by acpi_pcc_opregion_space_handler. This
handler will fetch the complete buffer via internal_pcc_buffer.
The setup handler will receive the special PCC context data which will
contain the PCC channel index which used to set up the channel. The
buffer pointer and length is saved in region context which is then used
in the handler.
(kernel test robot: Build failure with CONFIG_ACPI_DEBUGGER)
Link: https://lore.kernel.org/r/202201041539.feAV0l27-lkp@intel.com
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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David Woodhouse
|
74d9555580 |
PM: hibernate: Allow ACPI hardware signature to be honoured
Theoretically, when the hardware signature in FACS changes, the OS is supposed to gracefully decline to attempt to resume from S4: "If the signature has changed, OSPM will not restore the system context and can boot from scratch" In practice, Windows doesn't do this and many laptop vendors do allow the signature to change especially when docking/undocking, so it would be a bad idea to simply comply with the specification by default in the general case. However, there are use cases where we do want the compliant behaviour and we know it's safe. Specifically, when resuming virtual machines where we know the hypervisor has changed sufficiently that resume will fail. We really want to be able to *tell* the guest kernel not to try, so it boots cleanly and doesn't just crash. This patch provides a way to opt in to the spec-compliant behaviour on the command line. A follow-up patch may do this automatically for certain "known good" machines based on a DMI match, or perhaps just for all hypervisor guests since there's no good reason a hypervisor would change the hardware_signature that it exposes to guests *unless* it wants them to obey the ACPI specification. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
||
 Sakari Ailus
|
985e9ece1e |
ACPI: Make acpi_node_get_parent() local
acpi_node_get_parent() isn't used outside drivers/acpi/property.c. Make it local. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
||
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Mario Limonciello
|
e9380df851 |
ACPI: Add stubs for wakeup handler functions
The commit |
||
 Dan Williams
|
2d03e46a4b |
ACPI: Add a context argument for table parsing handlers
In preparation for drivers reusing the core table parsing infrastructure, arrange for handlers to take a context argument. This allows driver table parsing to wrap ACPI table entries in driver-specific data. The first consumer of this infrastructure is the CEDT parsing that happens in the cxl_acpi driver, add a conditional (CONFIG_ACPI_TABLE_LIB=y) export of a acpi_table_parse_cedt() helper for this case. Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Len Brown <lenb@kernel.org> Tested-by: Alison Schofield <alison.schofield@intel.com> Reviewed-by: Alison Schofield <alison.schofield@intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/163553710257.2509508.14310494417463866020.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
||
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Dan Williams
|
ad2f63971e |
ACPI: Teach ACPI table parsing about the CEDT header format
The CEDT adds yet one more unique subtable header type where the length is a 16-bit value. Extend the subtable helpers to detect this scenario. Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Len Brown <lenb@kernel.org> Tested-by: Alison Schofield <alison.schofield@intel.com> Reviewed-by: Alison Schofield <alison.schofield@intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/163553709742.2509508.5177761945441327574.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
||
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Dan Williams
|
f64bd790b7 |
ACPI: Keep sub-table parsing infrastructure available for modules
The NFIT driver and now the CXL ACPI driver have both open-coded ACPI table parsing. Before another instance is added arrange for the core ACPI sub-table parsing to be optionally available to drivers via the CONFIG_ACPI_TABLE_LIB symbol. If no drivers select the symbol then the infrastructure reverts back to being tagged __init via the __init_or_acpilib annotation. For now, only tag the core sub-table routines and data that the CEDT parsing in the cxl_acpi driver would want to reuse, a CEDT parsing helper is added in a later change. Cc: "Rafael J. Wysocki" <rafael@kernel.org> Cc: Len Brown <lenb@kernel.org> Cc: Alison Schofield <alison.schofield@intel.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Link: https://lore.kernel.org/r/163553709227.2509508.8215196520233473814.stgit@dwillia2-desk3.amr.corp.intel.com Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
||
|
Linus Torvalds
|
285fc3db0a |
Merge tag 'acpi-5.16-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"These add support for a new ACPI device configuration object called
_DSC, fix some issues including one recent regression, add two new
items to quirk lists and clean up assorted pieces of code.
Specifics:
- Add support for new ACPI device configuration object called _DSC
("Deepest State for Configuration") to allow certain devices to be
probed without changing their power states, document it and make
two drivers use it (Sakari Ailus, Rajmohan Mani).
- Fix device wakeup power reference counting broken recently by
mistake (Rafael Wysocki).
- Drop unused symbol and macros depending on it from acgcc.h (Rafael
Wysocki).
- Add HP ZHAN 66 Pro to the "no EC wakeup" quirk list (Binbin Zhou).
- Add Xiaomi Mi Pad 2 to the backlight quirk list and drop an unused
piece of data from all of the list entries (Hans de Goede).
- Fix register read accesses handling in the Intel PMIC operation
region driver (Hans de Goede).
- Clean up static variables initialization in the EC driver
(wangzhitong)"
* tag 'acpi-5.16-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
Documentation: ACPI: Fix non-D0 probe _DSC object example
ACPI: Drop ACPI_USE_BUILTIN_STDARG ifdef from acgcc.h
ACPI: PM: Fix device wakeup power reference counting error
ACPI: video: use platform backlight driver on Xiaomi Mi Pad 2
ACPI: video: Drop dmi_system_id.ident settings from video_detect_dmi_table[]
ACPI: PMIC: Fix intel_pmic_regs_handler() read accesses
ACPI: EC: Remove initialization of static variables to false
ACPI: EC: Use ec_no_wakeup on HP ZHAN 66 Pro
at24: Support probing while in non-zero ACPI D state
media: i2c: imx319: Support device probe in non-zero ACPI D state
ACPI: Add a convenience function to tell a device is in D0 state
Documentation: ACPI: Document _DSC object usage for enum power state
i2c: Allow an ACPI driver to manage the device's power state during probe
ACPI: scan: Obtain device's desired enumeration power state
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||
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Linus Torvalds
|
0c5c62ddf8 |
Merge tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull pci updates from Bjorn Helgaas:
"Enumeration:
- Conserve IRQs by setting up portdrv IRQs only when there are users
(Jan Kiszka)
- Rework and simplify _OSC negotiation for control of PCIe features
(Joerg Roedel)
- Remove struct pci_dev.driver pointer since it's redundant with the
struct device.driver pointer (Uwe Kleine-König)
Resource management:
- Coalesce contiguous host bridge apertures from _CRS to accommodate
BARs that cover more than one aperture (Kai-Heng Feng)
Sysfs:
- Check CAP_SYS_ADMIN before parsing user input (Krzysztof
Wilczyński)
- Return -EINVAL consistently from "store" functions (Krzysztof
Wilczyński)
- Use sysfs_emit() in endpoint "show" functions to avoid buffer
overruns (Kunihiko Hayashi)
PCIe native device hotplug:
- Ignore Link Down/Up caused by resets during error recovery so
endpoint drivers can remain bound to the device (Lukas Wunner)
Virtualization:
- Avoid bus resets on Atheros QCA6174, where they hang the device
(Ingmar Klein)
- Work around Pericom PI7C9X2G switch packet drop erratum by using
store and forward mode instead of cut-through (Nathan Rossi)
- Avoid trying to enable AtomicOps on VFs; the PF setting applies to
all VFs (Selvin Xavier)
MSI:
- Document that /sys/bus/pci/devices/.../irq contains the legacy INTx
interrupt or the IRQ of the first MSI (not MSI-X) vector (Barry
Song)
VPD:
- Add pci_read_vpd_any() and pci_write_vpd_any() to access anywhere
in the possible VPD space; use these to simplify the cxgb3 driver
(Heiner Kallweit)
Peer-to-peer DMA:
- Add (not subtract) the bus offset when calculating DMA address
(Wang Lu)
ASPM:
- Re-enable LTR at Downstream Ports so they don't report Unsupported
Requests when reset or hot-added devices send LTR messages
(Mingchuang Qiao)
Apple PCIe controller driver:
- Add driver for Apple M1 PCIe controller (Alyssa Rosenzweig, Marc
Zyngier)
Cadence PCIe controller driver:
- Return success when probe succeeds instead of falling into error
path (Li Chen)
HiSilicon Kirin PCIe controller driver:
- Reorganize PHY logic and add support for external PHY drivers
(Mauro Carvalho Chehab)
- Support PERST# GPIOs for HiKey970 external PEX 8606 bridge (Mauro
Carvalho Chehab)
- Add Kirin 970 support (Mauro Carvalho Chehab)
- Make driver removable (Mauro Carvalho Chehab)
Intel VMD host bridge driver:
- If IOMMU supports interrupt remapping, leave VMD MSI-X remapping
enabled (Adrian Huang)
- Number each controller so we can tell them apart in
/proc/interrupts (Chunguang Xu)
- Avoid building on UML because VMD depends on x86 bare metal APIs
(Johannes Berg)
Marvell Aardvark PCIe controller driver:
- Define macros for PCI_EXP_DEVCTL_PAYLOAD_* (Pali Rohár)
- Set Max Payload Size to 512 bytes per Marvell spec (Pali Rohár)
- Downgrade PIO Response Status messages to debug level (Marek Behún)
- Preserve CRS SV (Config Request Retry Software Visibility) bit in
emulated Root Control register (Pali Rohár)
- Fix issue in configuring reference clock (Pali Rohár)
- Don't clear status bits for masked interrupts (Pali Rohár)
- Don't mask unused interrupts (Pali Rohár)
- Avoid code repetition in advk_pcie_rd_conf() (Marek Behún)
- Retry config accesses on CRS response (Pali Rohár)
- Simplify emulated Root Capabilities initialization (Pali Rohár)
- Fix several link training issues (Pali Rohár)
- Fix link-up checking via LTSSM (Pali Rohár)
- Fix reporting of Data Link Layer Link Active (Pali Rohár)
- Fix emulation of W1C bits (Marek Behún)
- Fix MSI domain .alloc() method to return zero on success (Marek
Behún)
- Read entire 16-bit MSI vector in MSI handler, not just low 8 bits
(Marek Behún)
- Clear Root Port I/O Space, Memory Space, and Bus Master Enable bits
at startup; PCI core will set those as necessary (Pali Rohár)
- When operating as a Root Port, set class code to "PCI Bridge"
instead of the default "Mass Storage Controller" (Pali Rohár)
- Add emulation for PCI_BRIDGE_CTL_BUS_RESET since aardvark doesn't
implement this per spec (Pali Rohár)
- Add emulation of option ROM BAR since aardvark doesn't implement
this per spec (Pali Rohár)
MediaTek MT7621 PCIe controller driver:
- Add MediaTek MT7621 PCIe host controller driver and DT binding
(Sergio Paracuellos)
Qualcomm PCIe controller driver:
- Add SC8180x compatible string (Bjorn Andersson)
- Add endpoint controller driver and DT binding (Manivannan
Sadhasivam)
- Restructure to use of_device_get_match_data() (Prasad Malisetty)
- Add SC7280-specific pcie_1_pipe_clk_src handling (Prasad Malisetty)
Renesas R-Car PCIe controller driver:
- Remove unnecessary includes (Geert Uytterhoeven)
Rockchip DesignWare PCIe controller driver:
- Add DT binding (Simon Xue)
Socionext UniPhier Pro5 controller driver:
- Serialize INTx masking/unmasking (Kunihiko Hayashi)
Synopsys DesignWare PCIe controller driver:
- Run dwc .host_init() method before registering MSI interrupt
handler so we can deal with pending interrupts left by bootloader
(Bjorn Andersson)
- Clean up Kconfig dependencies (Andy Shevchenko)
- Export symbols to allow more modular drivers (Luca Ceresoli)
TI DRA7xx PCIe controller driver:
- Allow host and endpoint drivers to be modules (Luca Ceresoli)
- Enable external clock if present (Luca Ceresoli)
TI J721E PCIe driver:
- Disable PHY when probe fails after initializing it (Christophe
JAILLET)
MicroSemi Switchtec management driver:
- Return error to application when command execution fails because an
out-of-band reset has cleared the device BARs, Memory Space Enable,
etc (Kelvin Cao)
- Fix MRPC error status handling issue (Kelvin Cao)
- Mask out other bits when reading of management VEP instance ID
(Kelvin Cao)
- Return EOPNOTSUPP instead of ENOTSUPP from sysfs show functions
(Kelvin Cao)
- Add check of event support (Logan Gunthorpe)
Miscellaneous:
- Remove unused pci_pool wrappers, which have been replaced by
dma_pool (Cai Huoqing)
- Use 'unsigned int' instead of bare 'unsigned' (Krzysztof
Wilczyński)
- Use kstrtobool() directly, sans strtobool() wrapper (Krzysztof
Wilczyński)
- Fix some sscanf(), sprintf() format mismatches (Krzysztof
Wilczyński)
- Update PCI subsystem information in MAINTAINERS (Krzysztof
Wilczyński)
- Correct some misspellings (Krzysztof Wilczyński)"
* tag 'pci-v5.16-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (137 commits)
PCI: Add ACS quirk for Pericom PI7C9X2G switches
PCI: apple: Configure RID to SID mapper on device addition
iommu/dart: Exclude MSI doorbell from PCIe device IOVA range
PCI: apple: Implement MSI support
PCI: apple: Add INTx and per-port interrupt support
PCI: kirin: Allow removing the driver
PCI: kirin: De-init the dwc driver
PCI: kirin: Disable clkreq during poweroff sequence
PCI: kirin: Move the power-off code to a common routine
PCI: kirin: Add power_off support for Kirin 960 PHY
PCI: kirin: Allow building it as a module
PCI: kirin: Add MODULE_* macros
PCI: kirin: Add Kirin 970 compatible
PCI: kirin: Support PERST# GPIOs for HiKey970 external PEX 8606 bridge
PCI: apple: Set up reference clocks when probing
PCI: apple: Add initial hardware bring-up
PCI: of: Allow matching of an interrupt-map local to a PCI device
of/irq: Allow matching of an interrupt-map local to an interrupt controller
irqdomain: Make of_phandle_args_to_fwspec() generally available
PCI: Do not enable AtomicOps on VFs
...
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Sakari Ailus
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b82a7df4a7 |
ACPI: Add a convenience function to tell a device is in D0 state
Add a convenience function to tell whether a device is in D0 state, primarily for use in drivers' probe or remove functions on busses where the custom is to power on the device for the duration of both. Returns false on non-ACPI systems. Suggested-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Tomasz Figa <tfiga@chromium.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
||
 Jonathan Cameron
|
c5e22feffd |
topology: Represent clusters of CPUs within a die
Both ACPI and DT provide the ability to describe additional layers of
topology between that of individual cores and higher level constructs
such as the level at which the last level cache is shared.
In ACPI this can be represented in PPTT as a Processor Hierarchy
Node Structure [1] that is the parent of the CPU cores and in turn
has a parent Processor Hierarchy Nodes Structure representing
a higher level of topology.
For example Kunpeng 920 has 6 or 8 clusters in each NUMA node, and each
cluster has 4 cpus. All clusters share L3 cache data, but each cluster
has local L3 tag. On the other hand, each clusters will share some
internal system bus.
+-----------------------------------+ +---------+
| +------+ +------+ +--------------------------+ |
| | CPU0 | | cpu1 | | +-----------+ | |
| +------+ +------+ | | | | |
| +----+ L3 | | |
| +------+ +------+ cluster | | tag | | |
| | CPU2 | | CPU3 | | | | | |
| +------+ +------+ | +-----------+ | |
| | | |
+-----------------------------------+ | |
+-----------------------------------+ | |
| +------+ +------+ +--------------------------+ |
| | | | | | +-----------+ | |
| +------+ +------+ | | | | |
| | | L3 | | |
| +------+ +------+ +----+ tag | | |
| | | | | | | | | |
| +------+ +------+ | +-----------+ | |
| | | |
+-----------------------------------+ | L3 |
| data |
+-----------------------------------+ | |
| +------+ +------+ | +-----------+ | |
| | | | | | | | | |
| +------+ +------+ +----+ L3 | | |
| | | tag | | |
| +------+ +------+ | | | | |
| | | | | | +-----------+ | |
| +------+ +------+ +--------------------------+ |
+-----------------------------------| | |
+-----------------------------------| | |
| +------+ +------+ +--------------------------+ |
| | | | | | +-----------+ | |
| +------+ +------+ | | | | |
| +----+ L3 | | |
| +------+ +------+ | | tag | | |
| | | | | | | | | |
| +------+ +------+ | +-----------+ | |
| | | |
+-----------------------------------+ | |
+-----------------------------------+ | |
| +------+ +------+ +--------------------------+ |
| | | | | | +-----------+ | |
| +------+ +------+ | | | | |
| | | L3 | | |
| +------+ +------+ +---+ tag | | |
| | | | | | | | | |
| +------+ +------+ | +-----------+ | |
| | | |
+-----------------------------------+ | |
+-----------------------------------+ | |
| +------+ +------+ +--------------------------+ |
| | | | | | +-----------+ | |
| +------+ +------+ | | | | |
| | | L3 | | |
| +------+ +------+ +--+ tag | | |
| | | | | | | | | |
| +------+ +------+ | +-----------+ | |
| | +---------+
+-----------------------------------+
That means spreading tasks among clusters will bring more bandwidth
while packing tasks within one cluster will lead to smaller cache
synchronization latency. So both kernel and userspace will have
a chance to leverage this topology to deploy tasks accordingly to
achieve either smaller cache latency within one cluster or an even
distribution of load among clusters for higher throughput.
This patch exposes cluster topology to both kernel and userspace.
Libraried like hwloc will know cluster by cluster_cpus and related
sysfs attributes. PoC of HWLOC support at [2].
Note this patch only handle the ACPI case.
Special consideration is needed for SMT processors, where it is
necessary to move 2 levels up the hierarchy from the leaf nodes
(thus skipping the processor core level).
Note that arm64 / ACPI does not provide any means of identifying
a die level in the topology but that may be unrelate to the cluster
level.
[1] ACPI Specification 6.3 - section 5.2.29.1 processor hierarchy node
structure (Type 0)
[2] https://github.com/hisilicon/hwloc/tree/linux-cluster
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Barry Song <song.bao.hua@hisilicon.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210924085104.44806-2-21cnbao@gmail.com
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 Joerg Roedel
|
af9d82626c |
PCI/ACPI: Remove OSC_PCI_SUPPORT_MASKS and OSC_PCI_CONTROL_MASKS
These masks are only used internally in the PCI Host Bridge _OSC negotiation code, which already makes sure nothing outside of these masks is set. Remove the masks and simplify the code. Suggested-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20210824122054.29481-2-joro@8bytes.org Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Rafael J. Wysocki <rafael@kernel.org> |
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Rafael J. Wysocki
|
7c85154643 |
Merge branches 'acpi-numa', 'acpi-glue', 'acpi-config' and 'acpi-pmic'
* acpi-numa: ACPI: Add LoongArch support for ACPI_PROCESSOR/ACPI_NUMA * acpi-glue: driver core: Split device_platform_notify() software nodes: Split software_node_notify() ACPI: glue: Eliminate acpi_platform_notify() ACPI: bus: Rename functions to avoid name collision ACPI: glue: Change return type of two functions to void ACPI: glue: Rearrange acpi_device_notify() * acpi-config: ACPI: configfs: Make get_header() to return error pointer ACPI: configfs: Use sysfs_emit() in "show" functions * acpi-pmic: ACPI / PMIC: XPower: optimize MIPI PMIQ sequence I2C-bus accesses ACPI / PMIC: XPower: optimize I2C-bus accesses |
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Rafael J. Wysocki
|
d0b8e39831 |
ACPI: glue: Eliminate acpi_platform_notify()
Get rid of acpi_platform_notify() which is redundant and make device_platform_notify() in the driver core call acpi_device_notify() and acpi_device_notify_remove() directly. No functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> |
||
 Huacai Chen
|
b1121e2a18 |
ACPI: Add LoongArch support for ACPI_PROCESSOR/ACPI_NUMA
We are preparing to add new Loongson (based on LoongArch, not MIPS) support. LoongArch use ACPI other than DT as its boot protocol, so add its support for ACPI_PROCESSOR/ACPI_NUMA. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
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|
Linus Torvalds
|
e9f1cbc0c4 |
Merge tag 'acpi-5.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
"These include fixes of the recently introduced support for the
Platform Runtime Mechanism (PRM) feature, a new backlight quirk, a
suspend-to-idle wakeup fix for non-Intel platforms and a fix for the
AMBA bus resource list in /proc/iomem.
Specifics:
- Fix up the recently added Platform Runtime Mechanism (PRM) support
by correnting a couple of implementation mistakes in it and adding
a Kconfig help text to describe it (Aubrey Li, Rafael Wysocki).
- Add backlight quirk for Dell Vostro 3350 (Hans de Goede).
- Avoid spurious wakeups from suspend-to-idle on non-Intel platforms
by restricting special EC GPE handling to the Intel ones (Mario
Limonciello).
- Modify the AMBA bus support in ACPI to avoid adding using resource
names in /proc/iomem (Liguang Zhang)"
* tag 'acpi-5.14-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: Do not singal PRM support if not enabled
ACPI: Correct \_SB._OSC bit definition for PRM
ACPI: Kconfig: Provide help text for the ACPI_PRMT option
ACPI: PM: Only mark EC GPE for wakeup on Intel systems
ACPI: video: Add quirk for the Dell Vostro 3350
ACPI: AMBA: Fix resource name in /proc/iomem
|