Pull power management updates from Rafael Wysocki:
"As has been the case for quite some time, this set of changes is
dominated by cpufreq updates including intel-pstate and amd-pstate
driver updates, minor fixes and cleanups of other assorted cpufreq
drivers, schedutil governor updates, fixes of the Rust bindings, new
hardware support (IPQ5210 in qcom-nvmem), and some updates of self
tests related to cpufreq.
The second largest group of changes are cpuidle updates consisting of
intel_idle driver updates and ACPI processor idle driver updates, both
mostly related to ACPI _LPI support.
There are also updates related to system sleep, mostly in the
hibernation core code, two operating performance points (OPP) updates,
one runtime PM framework update, one power capping update, and some
tools updates including the addition of ACPI CPPC support to cpupower.
Specifics:
- Minor fixes and cleanups in assorted cpufreq drivers (Dan
Carpenter, Guru Das Srinagesh, Haoxiang Li, Karl Mehltretter, Sasha
Finkelstein, and Pan Chuang)
- Fix cpufreq table creation and bios_limits() callback in the Rust
bindings (Priya Bala Govindasamy)
- Add IPQ5210 support to qcom-nvmem driver (Varadarajan Narayanan)
- Adjust the .adjust_perf() cpufreq driver callback to allow the
maximum performance value to be passed to drivers and update the
intel_pstate driver to use it (Rafael Wysocki)
- Set policy->cur to the actual requested frequency in the
intel_pstate driver when the performance policy is used (Rafael
Wysocki)
- Simplify HWP handling on Broadwell processors in intel_pstate
(Rafael Wysocki)
- Fix setting minimum P-state at init time in intel_pstate (Rafael
Wysocki)
- Consolidate frequency values computation in intel_pstate and clean
up code in that driver (Rafael Wysocki)
- Add missing kernel-doc descriptions for structure and union members
in the amd-pstate driver (David Vernet)
- Handle missing policy in dynamic EPP callbacks in the amd-pstate
driver (EDAMAMEX)
- Introduce EXPORT_SYMBOL_FOR_PSTATE_UT() to export amd-pstate driver
symbols to the amd-pstate-ut subdriver (K Prateek Nayak)
- Add dynamic EPP as an "energy_performance_preference" mode in
amd-pstate, remove the "amd_dynamic_epp" kernel command line option
and the "dynamic_epp" sysfs attribute, and update the dynamic_epp
documentation accordingly (K Prateek Nayak)
- Add unit tests for CPPC Performance Priority and the "dynamic" EPP
mode in the amd-pstate driver (K Prateek Nayak)
- Set min_limit_freq based on bios_min_perf in amd-pstate and remove
the defensive check for bios_min_perf from it (K Prateek Nayak)
- Fix EPP return type and handle errors in amd-pstate during
initialization, toggle auto_sel in active mode on shared memory
systems, and cache the firmware programmed EPP value (Marco
Scardovi)
- Skip tests in amd-pstate-ut if the amd-pstate driver is not in
active use (Qianheng Peng)
- Replace sprintf() with sysfs_emit() in sysfs show in the cpufreq
schedutil governor and fix a self-contradictory comment in
sugov_iowait_apply() (Zhongqiu Han)
- Fix the usage example for the sampling_rate tunable of the ondemand
cpufreq governor in admin-guide (wangxiaodong)
- Avoid using deep idle states during initialization in the
intel_idle driver to work around device handling issues (Rafael
Wysocki)
- Fix and refactor the ACPI processor driver code related to ACPI
_LPI support and add ACPI _LPI support to intel_idle based on that
ACPI processor driver update (Rafael Wysocki)
- Backup and restore governor for cpufreq sptests (Yiwei Lin)
- Remove unnecessary sudo from quick_shuffle() and remove unused
local variables from switch_show_governor() in cpufreq selftests
(Jinseok Kim)
- Rename the PM core module parameter prefix to "pm" and allow the PM
transition (DPM) watchdog to be disabled by default (Tzung-Bi Shih)
- Fix off-by-one in wakelocks number limit check in the system sleep
sysfs interface (Haowen Tu)
- Remove kernel-doc markings from helper descriptions in the core
hibernation code (Adi Nata)
- Use %pe to print error pointer values in the hibernation core
(Ronan Marchal)
- Fix memory leak in snapshot_write_next() error path (Malaya Kumar
Rout)
- Delay allocating and linking the next swap_map_page in the
hibernation image saving code until another image page actually
needs to be recorded (Haesung Kim)
- Fix cleanup ordering around scope-based pointers in OPP (Gregor
Herburger).
- Use clk_get_optional() for optional clocks in OPP (Praveen Talari).
- Stop setting runtime_error on runtime resume callback failures to
allow drivers to recover from resume issues (Praveen Talari)
- Handle PMU registration failure during probe in the intel_rapl_tpmi
driver (Sumeet Pawnikar)
- Avoid optional imports in intel_pstate_tracer unless they are
really needed (Yousef Alhouseen)
- Add generic CPPC performance display to the cpupower utility, build
and call CPPC information on non-AMD processors, make cpupower
print kernel and hardware frequency information, and add libm to
cpupower for generic CPPC view (Jeremy Linton)
- Remove conditional return with no effect from cpupower (Sang-Heon
Jeon)"
* tag 'pm-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits)
cpufreq: imx6q: fix out-of-bounds write when probed more than once
cpufreq: imx6q: fix devres accumulation across driver rebind
rust: cpufreq: Fix temporary write in Registration::bios_limit_callback
rust: cpufreq: Add CPUFREQ_TABLE_END as last table entry in TableBuilder::to_table
opp: Use clk_get_optional() to avoid leaving opp_table->clk as an error pointer
intel_idle: Avoid using deep idle states during initialization
cpupower: remove conditional return with no effect
cpufreq: intel_pstate: Adjust policy->cur in active mode to policy
cpufreq/amd-pstate: Document missing kernel-doc members
cpufreq/amd-pstate-ut: Add unit test for CPPC Performance Priority
cpufreq/amd-pstate-ut: Add unit test for "dynamic" EPP mode
cpufreq/amd-pstate: Reduce the scope of exported symbols
Documentation/amd-pstate: Update dynamic_epp documentation with new behavior
cpufreq/amd-pstate: Remove "amd_dynamic_epp" cmdline and "dynamic_epp" sysfs
cpufreq/amd-pstate: Add dynamic EPP as an "energy_performance_preference" mode
cpufreq/amd-pstate: Extract platform profile to EPP conversion into a helper
cpufreq/amd-pstate: Remove the defensive check for bios_min_perf
cpufreq/amd-pstate: Set min_limit_freq based on bios_min_perf
powercap: intel_rapl_tpmi: Handle PMU registration failure during probe
PM: sleep: Allow disabling DPM watchdog by default
...
Merge updates related to the ACPI video bus driver for 7.3-rc1:
- Introduce helper function acpi_dev_is_video_device() and use it in
the core ACPI device enumeration code, in the ACPI video bus driver,
in the ACPI support code for I2C, in the PCI VGA driver, and in the
x86 platform thinkpad_acpi driver (Andy Shevchenko)
- Add a quirk to use the native backlight on Acer Nitro AN515-46 to the
ACPI video bus driver (Marcos Paulo Medeiros)
- Release PCI device reference after lookup in video_detect_portege_r100()
in the ACPI video bus driver (Yuho Choi)
* acpi-video:
ACPI: video: Release PCI device reference after lookup
ACPI: video: force native backlight on Acer Nitro AN515-46
platform/x86: thinkpad_acpi: Convert to use acpi_dev_is_video_device() helper
PCI/VGA: Convert to use acpi_dev_is_video_device() helper
i2c: acpi: Convert to use acpi_dev_is_video_device() helper
ACPI: video: Convert to use acpi_dev_is_video_device() helper
ACPI: scan: Convert to use acpi_dev_is_video_device() helper
ACPI: utils: Introduce acpi_dev_is_video_device() helper
Merge the introduction of acpi_dev_is_video_device() along with some
following driver updates related to it (from Andy Shevchenko).
* acpi-video:
platform/x86: thinkpad_acpi: Convert to use acpi_dev_is_video_device() helper
PCI/VGA: Convert to use acpi_dev_is_video_device() helper
i2c: acpi: Convert to use acpi_dev_is_video_device() helper
ACPI: video: Convert to use acpi_dev_is_video_device() helper
ACPI: scan: Convert to use acpi_dev_is_video_device() helper
ACPI: utils: Introduce acpi_dev_is_video_device() helper
There are a couple of users that open code functionality of matching
a given handle against ACPI video device IDs. The current approach
duplicates ID table along with the matching code. Consolidate it
under the acpi_dev_is_video_device() helper's hood.
Signed-off-by: Andy Shevchenko <[email protected]>
[ rjw: Moved the static var declaration into the function body ]
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Rafael J. Wysocki <[email protected]>
Add a "strict" argument to acpi_processor_extract_lpi_info() that, when
set, will cause it to ignore _LPI states without minimum residency or
wake latency instead of assuming 10 us values for these parameters.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Sudeep Holla <[email protected]>
Acked-by: Huisong Li <[email protected]>
Link: https://patch.msgid.link/[email protected]
In preparation for adding ACPI _LPI support to the intel_idle driver,
move acpi_processor_extract_lpi_info() along with some static functions
used by it to the acpi_processor.c file containing the non-modular part
of the ACPI processor driver, so it can be called by external non-modular
code like intel_idle.
However, export it to modules in the ACPI_PROCESSOR_IDLE import
namespace so that the modular part of the ACPI processor driver
can still invoke it.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Sudeep Holla <[email protected]>
Acked-by: Huisong Li <[email protected]>
Link: https://patch.msgid.link/[email protected]
RISC-V implements arch code to detect probe dependencies for devices and
the interrupt controller the devices GSIs are routed to.
The code itself is arch agnostic apart from an arch specific helper
function required to retrieve the acpi_handle of the interrupt controller
that manages the device GSI interrupt.
In order to enable IRQ probe dependencies detection on other architectures,
move RISC-V IRQ probe dependency detection code to generic ACPI IRQ code.
Allow interrupt controller drivers to register an arch specific function to
determine the acpi_handle for a specific GSI number to use the mechanism if
needed by the respective interrupt controller drivers.
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Reviewed-by: Sunil V L <[email protected]>
Tested-by: Sunil V L <[email protected]>
Link: https://patch.msgid.link/20260709-gic-v5-acpi-iwb-probe-deferral-v4-5-48dae790f871@kernel.org
Signed-off-by: Rafael J. Wysocki <[email protected]>
Code clearing device dependencies in ACPI in drivers through
acpi_dev_clear_dependencies()
requires annoying ifdeffery to make sure it is compiled out on
!CONFIG_ACPI configurations.
Implement a wrapper function to clear device dependencies that can be used
in device drivers without conditional compilation.
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Link: https://patch.msgid.link/20260709-gic-v5-acpi-iwb-probe-deferral-v4-1-48dae790f871@kernel.org
Signed-off-by: Rafael J. Wysocki <[email protected]>
<linux/mod_devicetable.h> is included in a many files:
$ git grep '<linux/mod_devicetable.h>' ef0c9f75a1 | wc -l
1598
; some of them are widely used headers. To stop mixing up different and
unrelated driver( type)s let the subsystem headers only use the subset
of the recently split <linux/mod_devicetable.h> that are relevant for
them.
The fallout (I hope) is addressed in the previous commits that handle
sources relying on e.g. <linux/i2c.h> pulling in the full legacy header
and thus providing pci_device_id.
Acked-by: Danilo Krummrich <[email protected]>
Acked-by: Takashi Sakamoto <[email protected]>
Link: https://patch.msgid.link/199fe46b624ba07fb9bd3e0cd6ff13757932cb5f.1782808461.git.u.kleine-koenig@baylibre.com
Signed-off-by: Uwe Kleine-König (The Capable Hub) <[email protected]>
When ACPI is disabled, x86 Xen support fails to build:
arch/x86/xen/enlighten_hvm.c: In function 'xen_cpu_up_prepare_hvm':
arch/x86/xen/enlighten_hvm.c:165:13: error: implicit declaration of function 'acpi_get_cpu_uid' [-Wimplicit-function-declaration]
165 | if (acpi_get_cpu_uid(cpu, &cpu_uid) == 0)
| ^~~~~~~~~~~~~~~~
Add a trivial stub that can be used in place of the real function.
Fixes: f652d0a4e1 ("ACPI: Centralize acpi_get_cpu_uid() declaration in include/linux/acpi.h")
Signed-off-by: Arnd Bergmann <[email protected]>
Acked-by: Chengwen Feng <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Rafael J. Wysocki <[email protected]>
Merge updates related to the CMOS RTC driver and x86/ACPI CMOS RTC
support for 7.1-rc1:
- Add ACPI support to the platform device interface in the CMOS RTC
driver, make the ACPI core device enumeration code create a platform
device for the CMOS RTC, and drop CMOS RTC PNP device support (Rafael
Wysocki)
- Consolidate the x86-specific CMOS RTC handling with the ACPI TAD
driver and clean up the CMOS RTC ACPI address space handler (Rafael
Wysocki)
- Enable ACPI alarm in the CMOS RTC driver if advertised in ACPI FADT
and allow that driver to work without a dedicated IRQ if the ACPI
alarm is used (Rafael Wysocki)
* acpi-cmos-rtc:
rtc: cmos: Do not require IRQ if ACPI alarm is used
rtc: cmos: Enable ACPI alarm if advertised in ACPI FADT
ACPI: TAD/x86: cmos_rtc: Consolidate address space handler setup
rtc: cmos: Drop PNP device support
x86: rtc: Drop PNP device check
ACPI: PNP: Drop CMOS RTC PNP device support
ACPI: x86/rtc-cmos: Use platform device for driver binding
ACPI: x86: cmos_rtc: Create a CMOS RTC platform device
ACPI: x86: cmos_rtc: Improve coordination with ACPI TAD driver
ACPI: x86: cmos_rtc: Clean up address space handler driver
Centralize acpi_get_cpu_uid() in include/linux/acpi.h (global scope) and
remove arch-specific declarations from arm64/loongarch/riscv/x86
asm/acpi.h. This unifies the interface across architectures and
simplifies maintenance by eliminating duplicate prototypes.
Signed-off-by: Chengwen Feng <[email protected]>
Reviewed-by: Jonathan Cameron <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Rafael J. Wysocki <[email protected]>
Modify the rtc-cmos driver to bind to a platform device on systems with
ACPI via acpi_match_table and advertise the CMOST RTC ACPI device IDs
for driver auto-loading. Note that adding the requisite device IDs to
it and exposing them via MODULE_DEVICE_TABLE() is sufficient for this
purpose.
Since the ACPI device IDs in question are the same as for the CMOS RTC
ACPI scan handler, put them into a common header file and use the
definition from there in both places.
Additionally, to prevent a PNP device from being created for the CMOS
RTC if a platform one is present already, make is_cmos_rtc_device()
check cmos_rtc_platform_device_present introduced previously.
Signed-off-by: Rafael J. Wysocki <[email protected]>
Acked-by: Alexandre Belloni <[email protected]>
Link: https://patch.msgid.link/[email protected]
Make the CMOS RTC ACPI scan handler create a platform device that will
be used subsequently by rtc-cmos for driver binding on x86 systems with
ACPI and update add_rtc_cmos() to skip registering a fallback platform
device for the CMOS RTC when the above one has been registered.
Signed-off-by: Rafael J. Wysocki <[email protected]>
Acked-by: Dave Hansen <[email protected]> # x86
Link: https://patch.msgid.link/[email protected]
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <[email protected]>
This is the result of running the Coccinelle script from
scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to
avoid scalar types (which need careful case-by-case checking), and
instead replace kmalloc-family calls that allocate struct or union
object instances:
Single allocations: kmalloc(sizeof(TYPE), ...)
are replaced with: kmalloc_obj(TYPE, ...)
Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...)
are replaced with: kmalloc_objs(TYPE, COUNT, ...)
Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...)
are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...)
(where TYPE may also be *VAR)
The resulting allocations no longer return "void *", instead returning
"TYPE *".
Signed-off-by: Kees Cook <[email protected]>
On ARM64 ACPI systems GICv5 IRSes are described in MADT sub-entries.
Add the required plumbing to parse MADT IRS firmware table entries and
probe the IRS components in ACPI.
Augment the irqdomain_ops.translate() for PPI and SPI IRQs in order to
provide support for their ACPI based firmware translation.
Implement an irqchip ACPI based callback to initialize the global GSI
domain upon an MADT IRS detection.
The IRQCHIP_ACPI_DECLARE() entry in the top level GICv5 driver is only used
to trigger the IRS probing (ie the global GSI domain is initialized once on
the first call on multi-IRS systems); IRS probing takes place by calling
acpi_table_parse_madt() in the IRS sub-driver, that probes all IRSes
in sequence.
Add a new ACPI interrupt model so that it can be detected at runtime and
distinguished from previous GIC architecture models.
Signed-off-by: Lorenzo Pieralisi <[email protected]>
Reviewed-by: Jonathan Cameron <[email protected]>
Acked-by: Thomas Gleixner <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Rafael J. Wysocki <[email protected]>
Pull ACPI updates from Rafael Wysocki:
"These add Microsoft fan extensions support to the ACPI fan driver, fix
a bug in ACPICA, update other ACPI drivers (processor, time and alarm
device), update ACPI power management code and ACPI device properties
management, and fix an ACPI utility:
- Avoid walking the ACPI namespace in the AML interpreter if the
starting node cannot be determined (Cryolitia PukNgae)
- Use min() instead of min_t() in the ACPI device properties handling
code to avoid discarding significant bits (David Laight)
- Fix potential fwnode refcount leak in
acpi_fwnode_graph_parse_endpoint() that may prevent the parent
fwnode from being released (Haotian Zhang)
- Rework acpi_graph_get_next_endpoint() to use ACPI functions only,
remove unnecessary conditionals from it to make it easier to
follow, and make acpi_get_next_subnode() static (Sakari Ailus)
- Drop unused function acpi_get_lps0_constraint(), make some
Low-Power S0 callback functions for suspend-to-idle static, and
rearrange the code retrieving Low-Power S0 constraints so it only
runs when the constraints are actually used (Rafael Wysocki)
- Drop redundant locking from the ACPI battery driver (Rafael
Wysocki)
- Improve runtime PM in the ACPI time and alarm device (TAD) driver
using guard macros and rearrange code related to runtime PM in
acpi_tad_remove() (Rafael Wysocki)
- Add support for Microsoft fan extensions to the ACPI fan driver
along with notification support and work around a 64-bit firmware
bug in that driver (Armin Wolf)
- Use ACPI_FREE() to free ACPI buffer in the ACPI DPTF code
(Kaushlendra Kumar)
- Fix a memory leak and a resource leak in the ACPI pfrut utility
(Malaya Kumar Rout)
- Replace `core::mem::zeroed` with `pin_init::zeroed` in the ACPI
Rust code (Siyuan Huang)
- Update the ACPI code to use the new style of allocating workqueues
and new global workqueues (Marco Crivellari)
- Fix two spelling mistakes in the ACPI code (Chu Guangqing)
- Fix ISAPNP to generate uevents to auto-load modules (René Rebe)
- Relocate the state flags initialization in the ACPI processor idle
driver and drop redundant C-state count checks from it (Huisong Li)
- Fix map_x2apic_id() in the ACPI processor core driver for
amd-pstate on am4 (René Rebe)"
* tag 'acpi-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (30 commits)
ACPI: PM: Fix a spelling mistake
ACPI: LPSS: Fix a spelling mistake
ACPI: processor_core: fix map_x2apic_id for amd-pstate on am4
ACPICA: Avoid walking the Namespace if start_node is NULL
ACPI: tools: pfrut: fix memory leak and resource leak in pfrut.c
ACPI: property: use min() instead of min_t()
PNP: Fix ISAPNP to generate uevents to auto-load modules
ACPI: property: Fix fwnode refcount leak in acpi_fwnode_graph_parse_endpoint()
ACPI: DPTF: Use ACPI_FREE() for ACPI buffer deallocation
ACPI: processor: idle: Drop redundant C-state count checks
ACPI: thermal: Add WQ_PERCPU to alloc_workqueue() users
ACPI: OSL: Add WQ_PERCPU to alloc_workqueue() users
ACPI: EC: Add WQ_PERCPU to alloc_workqueue() users
ACPI: OSL: replace use of system_wq with system_percpu_wq
ACPI: scan: replace use of system_unbound_wq with system_dfl_wq
ACPI: fan: Add support for Microsoft fan extensions
ACPI: fan: Add hwmon notification support
ACPI: fan: Add basic notification support
ACPI: TAD: Improve runtime PM using guard macros
ACPI: TAD: Rearrange runtime PM operations in acpi_tad_remove()
...
Pull arm64 updates from Catalin Marinas:
"These are the arm64 updates for 6.19.
The biggest part is the Arm MPAM driver under drivers/resctrl/.
There's a patch touching mm/ to handle spurious faults for huge pmd
(similar to the pte version). The corresponding arm64 part allows us
to avoid the TLB maintenance if a (huge) page is reused after a write
fault. There's EFI refactoring to allow runtime services with
preemption enabled and the rest is the usual perf/PMU updates and
several cleanups/typos.
Summary:
Core features:
- Basic Arm MPAM (Memory system resource Partitioning And Monitoring)
driver under drivers/resctrl/ which makes use of the fs/rectrl/ API
Perf and PMU:
- Avoid cycle counter on multi-threaded CPUs
- Extend CSPMU device probing and add additional filtering support
for NVIDIA implementations
- Add support for the PMUs on the NoC S3 interconnect
- Add additional compatible strings for new Cortex and C1 CPUs
- Add support for data source filtering to the SPE driver
- Add support for i.MX8QM and "DB" PMU in the imx PMU driver
Memory managemennt:
- Avoid broadcast TLBI if page reused in write fault
- Elide TLB invalidation if the old PTE was not valid
- Drop redundant cpu_set_*_tcr_t0sz() macros
- Propagate pgtable_alloc() errors outside of __create_pgd_mapping()
- Propagate return value from __change_memory_common()
ACPI and EFI:
- Call EFI runtime services without disabling preemption
- Remove unused ACPI function
Miscellaneous:
- ptrace support to disable streaming on SME-only systems
- Improve sysreg generation to include a 'Prefix' descriptor
- Replace __ASSEMBLY__ with __ASSEMBLER__
- Align register dumps in the kselftest zt-test
- Remove some no longer used macros/functions
- Various spelling corrections"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (94 commits)
arm64/mm: Document why linear map split failure upon vm_reset_perms is not problematic
arm64/pageattr: Propagate return value from __change_memory_common
arm64/sysreg: Remove unused define ARM64_FEATURE_FIELD_BITS
KVM: arm64: selftests: Consider all 7 possible levels of cache
KVM: arm64: selftests: Remove ARM64_FEATURE_FIELD_BITS and its last user
arm64: atomics: lse: Remove unused parameters from ATOMIC_FETCH_OP_AND macros
Documentation/arm64: Fix the typo of register names
ACPI: GTDT: Get rid of acpi_arch_timer_mem_init()
perf: arm_spe: Add support for filtering on data source
perf: Add perf_event_attr::config4
perf/imx_ddr: Add support for PMU in DB (system interconnects)
perf/imx_ddr: Get and enable optional clks
perf/imx_ddr: Move ida_alloc() from ddr_perf_init() to ddr_perf_probe()
dt-bindings: perf: fsl-imx-ddr: Add compatible string for i.MX8QM, i.MX8QXP and i.MX8DXL
arm64: remove duplicate ARCH_HAS_MEM_ENCRYPT
arm64: mm: use untagged address to calculate page index
MAINTAINERS: new entry for MPAM Driver
arm_mpam: Add kunit tests for props_mismatch()
arm_mpam: Add kunit test for bitmap reset
arm_mpam: Add helper to reset saved mbwu state
...
* arm64/for-next/perf:
perf: arm_spe: Add support for filtering on data source
perf: Add perf_event_attr::config4
perf/imx_ddr: Add support for PMU in DB (system interconnects)
perf/imx_ddr: Get and enable optional clks
perf/imx_ddr: Move ida_alloc() from ddr_perf_init() to ddr_perf_probe()
dt-bindings: perf: fsl-imx-ddr: Add compatible string for i.MX8QM, i.MX8QXP and i.MX8DXL
arch_topology: Provide a stub topology_core_has_smt() for !CONFIG_GENERIC_ARCH_TOPOLOGY
perf/arm-ni: Fix and optimise register offset calculation
perf: arm_pmuv3: Add new Cortex and C1 CPU PMUs
perf: arm_cspmu: fix error handling in arm_cspmu_impl_unregister()
perf/arm-ni: Add NoC S3 support
perf/arm_cspmu: nvidia: Add pmevfiltr2 support
perf/arm_cspmu: nvidia: Add revision id matching
perf/arm_cspmu: Add pmpidr support
perf/arm_cspmu: Add callback to reset filter config
perf: arm_pmuv3: Don't use PMCCNTR_EL0 on SMT cores
* for-next/misc:
: Miscellaneous patches
arm64: atomics: lse: Remove unused parameters from ATOMIC_FETCH_OP_AND macros
arm64: remove duplicate ARCH_HAS_MEM_ENCRYPT
arm64: mm: use untagged address to calculate page index
arm64: mm: make linear mapping permission update more robust for patial range
arm64/mm: Elide TLB flush in certain pte protection transitions
arm64/mm: Rename try_pgd_pgtable_alloc_init_mm
arm64/mm: Allow __create_pgd_mapping() to propagate pgtable_alloc() errors
arm64: add unlikely hint to MTE async fault check in el0_svc_common
arm64: acpi: add newline to deferred APEI warning
arm64: entry: Clean out some indirection
arm64/mm: Ensure PGD_SIZE is aligned to 64 bytes when PA_BITS = 52
arm64/mm: Drop cpu_set_[default|idmap]_tcr_t0sz()
arm64: remove unused ARCH_PFN_OFFSET
arm64: use SOFTIRQ_ON_OWN_STACK for enabling softirq stack
arm64: Remove assertion on CONFIG_VMAP_STACK
* for-next/kselftest:
: arm64 kselftest patches
kselftest/arm64: Align zt-test register dumps
* for-next/efi-preempt:
: arm64: Make EFI calls preemptible
arm64/efi: Call EFI runtime services without disabling preemption
arm64/efi: Move uaccess en/disable out of efi_set_pgd()
arm64/efi: Drop efi_rt_lock spinlock from EFI arch wrapper
arm64/fpsimd: Permit kernel mode NEON with IRQs off
arm64/fpsimd: Don't warn when EFI execution context is preemptible
efi/runtime-wrappers: Keep track of the efi_runtime_lock owner
efi: Add missing static initializer for efi_mm::cpus_allowed_lock
* for-next/assembler-macro:
: arm64: Replace __ASSEMBLY__ with __ASSEMBLER__ in headers
arm64: Replace __ASSEMBLY__ with __ASSEMBLER__ in non-uapi headers
arm64: Replace __ASSEMBLY__ with __ASSEMBLER__ in uapi headers
* for-next/typos:
: Random typo/spelling fixes
arm64: Fix double word in comments
arm64: Fix typos and spelling errors in comments
* for-next/sme-ptrace-disable:
: Support disabling streaming mode via ptrace on SME only systems
kselftest/arm64: Cover disabling streaming mode without SVE in fp-ptrace
kselftst/arm64: Test NT_ARM_SVE FPSIMD format writes on non-SVE systems
arm64/sme: Support disabling streaming mode via ptrace on SME only systems
* for-next/local-tlbi-page-reused:
: arm64, mm: avoid TLBI broadcast if page reused in write fault
arm64, tlbflush: don't TLBI broadcast if page reused in write fault
mm: add spurious fault fixing support for huge pmd
* for-next/mpam: (34 commits)
: Basic Arm MPAM driver (more to follow)
MAINTAINERS: new entry for MPAM Driver
arm_mpam: Add kunit tests for props_mismatch()
arm_mpam: Add kunit test for bitmap reset
arm_mpam: Add helper to reset saved mbwu state
arm_mpam: Use long MBWU counters if supported
arm_mpam: Probe for long/lwd mbwu counters
arm_mpam: Consider overflow in bandwidth counter state
arm_mpam: Track bandwidth counter state for power management
arm_mpam: Add mpam_msmon_read() to read monitor value
arm_mpam: Add helpers to allocate monitors
arm_mpam: Probe and reset the rest of the features
arm_mpam: Allow configuration to be applied and restored during cpu online
arm_mpam: Use a static key to indicate when mpam is enabled
arm_mpam: Register and enable IRQs
arm_mpam: Extend reset logic to allow devices to be reset any time
arm_mpam: Add a helper to touch an MSC from any CPU
arm_mpam: Reset MSC controls from cpuhp callbacks
arm_mpam: Merge supported features during mpam_enable() into mpam_class
arm_mpam: Probe the hardware features resctrl supports
arm_mpam: Add helpers for managing the locking around the mon_sel registers
...
* for-next/acpi:
: arm64 acpi updates
ACPI: GTDT: Get rid of acpi_arch_timer_mem_init()
* for-next/documentation:
: arm64 Documentation updates
Documentation/arm64: Fix the typo of register names
Merge an ACPICA change, device ACPI properties handling update, ACPI
power management updates, and an ACPI battery driver update for
6.19-rc1:
- Avoid walking the ACPI namespace in the AML interpreter if the
starting node cannot be determined (Cryolitia PukNgae)
- Use min() instead of min_t() in the ACPI device properties handling
code to avoid discarding significant bits (David Laight)
- Fix potential fwnode refcount leak in acpi_fwnode_graph_parse_endpoint()
that may prevent the parent fwnode from being released (Haotian Zhang)
- Rework acpi_graph_get_next_endpoint() to use ACPI functions only, remove
unnecessary contitionals from it to make it easier to follow, and make
acpi_get_next_subnode() static (Sakari Ailus)
- Drop unused function acpi_get_lps0_constraint(), make some Low-Power
S0 callback functions for suspend-to-idle static, and rearrange the
code retrieving Low-Power S0 constraits so it only runs when the
constraits are actually used (Rafael Wysocki)
- Drop redundant locking from the ACPI battery driver (Rafael Wysocki)
* acpica:
ACPICA: Avoid walking the Namespace if start_node is NULL
* acpi-property:
ACPI: property: use min() instead of min_t()
ACPI: property: Fix fwnode refcount leak in acpi_fwnode_graph_parse_endpoint()
ACPI: property: Rework acpi_graph_get_next_endpoint()
ACPI: property: Use ACPI functions in acpi_graph_get_next_endpoint() only
ACPI: property: Make acpi_get_next_subnode() static
* acpi-pm:
ACPI: PM: s2idle: Only retrieve constraints when needed
ACPI: PM: s2idle: Staticise LPS0 callback functions
ACPI: PM: s2idle: Drop acpi_get_lps0_constraint()
* acpi-battery:
ACPI: battery: Drop redundant locking
The MPAM table identifies caches by id. The MPAM driver also wants to know
the cache level to determine if the platform is of the shape that can be
managed via resctrl. Cacheinfo has this information, but only for CPUs that
are online.
Waiting for all CPUs to come online is a problem for platforms where
CPUs are brought online late by user-space.
Add a helper that walks every possible cache, until it finds the one
identified by cache-id, then return the level.
Signed-off-by: James Morse <[email protected]>
Signed-off-by: Ben Horgan <[email protected]>
Reviewed-by: Gavin Shan <[email protected]>
Reviewed-by: Fenghua Yu <[email protected]>
Reviewed-by: Shaopeng Tan <[email protected]>
Reviewed-by: Jonathan Cameron <[email protected]>
Reviewed-by: Jeremy Linton <[email protected]>
Tested-by: Fenghua Yu <[email protected]>
Tested-by: Shaopeng Tan <[email protected]>
Tested-by: Carl Worth <[email protected]>
Tested-by: Gavin Shan <[email protected]>
Tested-by: Zeng Heng <[email protected]>
Tested-by: Hanjun Guo <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
The ACPI MPAM table uses the UID of a processor container specified in
the PPTT to indicate the subset of CPUs and cache topology that can
access each MPAM System Component (MSC).
This information is not directly useful to the kernel. The equivalent
cpumask is needed instead.
Add a helper to find the processor container by its id, then walk
the possible CPUs to fill a cpumask with the CPUs that have this
processor container as a parent.
CC: Dave Martin <[email protected]>
Reviewed-by: Sudeep Holla <[email protected]>
Reviewed-by: Jonathan Cameron <[email protected]>
Reviewed-by: Fenghua Yu <[email protected]>
Reviewed-by: Gavin Shan <[email protected]>
Reviewed-by: Shaopeng Tan <[email protected]>
Reviewed-by: Hanjun Guo <[email protected]>
Reviewed-by: Jeremy Linton <[email protected]>
Tested-by: Fenghua Yu <[email protected]>
Tested-by: Shaopeng Tan <[email protected]>
Tested-by: Peter Newman <[email protected]>
Tested-by: Carl Worth <[email protected]>
Tested-by: Gavin Shan <[email protected]>
Tested-by: Zeng Heng <[email protected]>
Tested-by: Hanjun Guo <[email protected]>
Signed-off-by: James Morse <[email protected]>
Signed-off-by: Ben Horgan <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
Plug the irq_populate_fwspec_info() helper into the ACPI layer to offer an
interrupt affinity reporting function. This is currently only supported for
the CONFIG_ACPI_GENERIC_GSI configurations, but could later be extended to
legacy architectures if necessary.
Signed-off-by: Marc Zyngier <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Tested-by: Will Deacon <[email protected]>
Reviewed-by: Jonathan Cameron <[email protected]>
Acked-by: Rafael J. Wysocki (Intel) <[email protected]>
Link: https://patch.msgid.link/[email protected]
Pull arm64 updates from Catalin Marinas:
"A quick summary: perf support for Branch Record Buffer Extensions
(BRBE), typical PMU hardware updates, small additions to MTE for
store-only tag checking and exposing non-address bits to signal
handlers, HAVE_LIVEPATCH enabled on arm64, VMAP_STACK forced on.
There is also a TLBI optimisation on hardware that does not require
break-before-make when changing the user PTEs between contiguous and
non-contiguous.
More details:
Perf and PMU updates:
- Add support for new (v3) Hisilicon SLLC and DDRC PMUs
- Add support for Arm-NI PMU integrations that share interrupts
between clock domains within a given instance
- Allow SPE to be configured with a lower sample period than the
minimum recommendation advertised by PMSIDR_EL1.Interval
- Add suppport for Arm's "Branch Record Buffer Extension" (BRBE)
- Adjust the perf watchdog period according to cpu frequency changes
- Minor driver fixes and cleanups
Hardware features:
- Support for MTE store-only checking (FEAT_MTE_STORE_ONLY)
- Support for reporting the non-address bits during a synchronous MTE
tag check fault (FEAT_MTE_TAGGED_FAR)
- Optimise the TLBI when folding/unfolding contiguous PTEs on
hardware with FEAT_BBM (break-before-make) level 2 and no TLB
conflict aborts
Software features:
- Enable HAVE_LIVEPATCH after implementing arch_stack_walk_reliable()
and using the text-poke API for late module relocations
- Force VMAP_STACK always on and change arm64_efi_rt_init() to use
arch_alloc_vmap_stack() in order to avoid KASAN false positives
ACPI:
- Improve SPCR handling and messaging on systems lacking an SPCR
table
Debug:
- Simplify the debug exception entry path
- Drop redundant DBG_MDSCR_* macros
Kselftests:
- Cleanups and improvements for SME, SVE and FPSIMD tests
Miscellaneous:
- Optimise loop to reduce redundant operations in contpte_ptep_get()
- Remove ISB when resetting POR_EL0 during signal handling
- Mark the kernel as tainted on SEA and SError panic
- Remove redundant gcs_free() call"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (93 commits)
arm64/gcs: task_gcs_el0_enable() should use passed task
arm64: Kconfig: Keep selects somewhat alphabetically ordered
arm64: signal: Remove ISB when resetting POR_EL0
kselftest/arm64: Handle attempts to disable SM on SME only systems
kselftest/arm64: Fix SVE write data generation for SME only systems
kselftest/arm64: Test SME on SME only systems in fp-ptrace
kselftest/arm64: Test FPSIMD format data writes via NT_ARM_SVE in fp-ptrace
kselftest/arm64: Allow sve-ptrace to run on SME only systems
arm64/mm: Drop redundant addr increment in set_huge_pte_at()
kselftest/arm4: Provide local defines for AT_HWCAP3
arm64: Mark kernel as tainted on SAE and SError panic
arm64/gcs: Don't call gcs_free() when releasing task_struct
drivers/perf: hisi: Support PMUs with no interrupt
drivers/perf: hisi: Relax the event number check of v2 PMUs
drivers/perf: hisi: Add support for HiSilicon SLLC v3 PMU driver
drivers/perf: hisi: Use ACPI driver_data to retrieve SLLC PMU information
drivers/perf: hisi: Add support for HiSilicon DDRC v3 PMU driver
drivers/perf: hisi: Simplify the probe process for each DDRC version
perf/arm-ni: Support sharing IRQs within an NI instance
perf/arm-ni: Consolidate CPU affinity handling
...
GCC appears to have kind of fragile inlining heuristics, in the
sense that it can change whether or not it inlines something based on
optimizations. It looks like the kcov instrumentation being added (or in
this case, removed) from a function changes the optimization results,
and some functions marked "inline" are _not_ inlined. In that case,
we end up with __init code calling a function not marked __init, and we
get the build warnings I'm trying to eliminate in the coming patch that
adds __no_sanitize_coverage to __init functions:
WARNING: modpost: vmlinux: section mismatch in reference: xbc_exit+0x8 (section: .text.unlikely) -> _xbc_exit (section: .init.text)
WARNING: modpost: vmlinux: section mismatch in reference: real_mode_size_needed+0x15 (section: .text.unlikely) -> real_mode_blob_end (section: .init.data)
WARNING: modpost: vmlinux: section mismatch in reference: __set_percpu_decrypted+0x16 (section: .text.unlikely) -> early_set_memory_decrypted (section: .init.text)
WARNING: modpost: vmlinux: section mismatch in reference: memblock_alloc_from+0x26 (section: .text.unlikely) -> memblock_alloc_try_nid (section: .init.text)
WARNING: modpost: vmlinux: section mismatch in reference: acpi_arch_set_root_pointer+0xc (section: .text.unlikely) -> x86_init (section: .init.data)
WARNING: modpost: vmlinux: section mismatch in reference: acpi_arch_get_root_pointer+0x8 (section: .text.unlikely) -> x86_init (section: .init.data)
WARNING: modpost: vmlinux: section mismatch in reference: efi_config_table_is_usable+0x16 (section: .text.unlikely) -> xen_efi_config_table_is_usable (section: .init.text)
This problem is somewhat fragile (though using either __always_inline
or __init will deterministically solve it), but we've tripped over
this before with GCC and the solution has usually been to just use
__always_inline and move on.
For x86 this means forcing several functions to be inline with
__always_inline.
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Kees Cook <[email protected]>
If CONFIG_ACPI_SPCR_TABLE is disabled, acpi_parse_spcr()
currently returns 0, which may incorrectly suggest that
SPCR parsing was successful. This patch changes the behavior
to return -ENODEV to clearly indicate that SPCR support
is not available.
This prepares the codebase for future changes that depend
on acpi_parse_spcr() failure detection, such as suppressing
misleading console messages.
Signed-off-by: Li Chen <[email protected]>
Acked-by: Hanjun Guo <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Catalin Marinas <[email protected]>
Pull hyperv updates from Wei Liu:
- Support for Virtual Trust Level (VTL) on arm64 (Roman Kisel)
- Fixes for Hyper-V UIO driver (Long Li)
- Fixes for Hyper-V PCI driver (Michael Kelley)
- Select CONFIG_SYSFB for Hyper-V guests (Michael Kelley)
- Documentation updates for Hyper-V VMBus (Michael Kelley)
- Enhance logging for hv_kvp_daemon (Shradha Gupta)
* tag 'hyperv-next-signed-20250602' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: (23 commits)
Drivers: hv: Always select CONFIG_SYSFB for Hyper-V guests
Drivers: hv: vmbus: Add comments about races with "channels" sysfs dir
Documentation: hyperv: Update VMBus doc with new features and info
PCI: hv: Remove unnecessary flex array in struct pci_packet
Drivers: hv: Remove hv_alloc/free_* helpers
Drivers: hv: Use kzalloc for panic page allocation
uio_hv_generic: Align ring size to system page
uio_hv_generic: Use correct size for interrupt and monitor pages
Drivers: hv: Allocate interrupt and monitor pages aligned to system page boundary
arch/x86: Provide the CPU number in the wakeup AP callback
x86/hyperv: Fix APIC ID and VP index confusion in hv_snp_boot_ap()
PCI: hv: Get vPCI MSI IRQ domain from DeviceTree
ACPI: irq: Introduce acpi_get_gsi_dispatcher()
Drivers: hv: vmbus: Introduce hv_get_vmbus_root_device()
Drivers: hv: vmbus: Get the IRQ number from DeviceTree
dt-bindings: microsoft,vmbus: Add interrupt and DMA coherence properties
arm64, x86: hyperv: Report the VTL the system boots in
arm64: hyperv: Initialize the Virtual Trust Level field
Drivers: hv: Provide arch-neutral implementation of get_vtl()
Drivers: hv: Enable VTL mode for arm64
...
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
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 <[email protected]>
Reviewed-by: Tony Luck <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Rafael J. Wysocki <[email protected]>
Using acpi_irq_create_hierarchy() in the cases where the code
also handles OF leads to code duplication as the ACPI subsystem
doesn't provide means to compute the IRQ domain parent whereas
the OF does.
Introduce acpi_get_gsi_dispatcher() so that the drivers relying
on both ACPI and OF may use irq_domain_create_hierarchy() in the
common code paths.
No functional changes.
Signed-off-by: Roman Kisel <[email protected]>
Reviewed-by: Michael Kelley <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Wei Liu <[email protected]>
Message-ID: <[email protected]>
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 <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Rafael J. Wysocki <[email protected]>
Pull Compute Express Link (CXL) updates from Dave Jiang:
- Add support for Global Persistent Flush (GPF)
- Cleanup of DPA partition metadata handling:
- Remove the CXL_DECODER_MIXED enum that's not needed anymore
- Introduce helpers to access resource and perf meta data
- Introduce 'struct cxl_dpa_partition' and 'struct cxl_range_info'
- Make cxl_dpa_alloc() DPA partition number agnostic
- Remove cxl_decoder_mode
- Cleanup partition size and perf helpers
- Remove unused CXL partition values
- Add logging support for CXL CPER endpoint and port protocol errors:
- Prefix protocol error struct and function names with cxl_
- Move protocol error definitions and structures to a common location
- Remove drivers/firmware/efi/cper_cxl.h to include/linux/cper.h
- Add support in GHES to process CXL CPER protocol errors
- Process CXL CPER protocol errors
- Add trace logging for CXL PCIe port RAS errors
- Remove redundant gp_port init
- Add validation of cxl device serial number
- CXL ABI documentation updates/fixups
- A series that uses guard() to clean up open coded mutex lockings and
remove gotos for error handling.
- Some followup patches to support dirty shutdown accounting:
- Add helper to retrieve DVSEC offset for dirty shutdown registers
- Rename cxl_get_dirty_shutdown() to cxl_arm_dirty_shutdown()
- Add support for dirty shutdown count via sysfs
- cxl_test support for dirty shutdown
- A series to support CXL mailbox Features commands.
Mostly in preparation for CXL EDAC code to utilize the Features
commands. It's also in preparation for CXL fwctl support to utilize
the CXL Features. The commands include "Get Supported Features", "Get
Feature", and "Set Feature".
- A series to support extended linear cache support described by the
ACPI HMAT table.
The addition helps enumerate the cache and also provides additional
RAS reporting support for configuration with extended linear cache.
(and related fixes for the series).
- An update to cxl_test to support a 3-way capable CFMWS
- A documentation fix to remove unused "mixed mode"
* tag 'cxl-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (39 commits)
cxl/region: Fix the first aliased address miscalculation
cxl/region: Quiet some dev_warn()s in extended linear cache setup
cxl/Documentation: Remove 'mixed' from sysfs mode doc
cxl: Fix warning from emitting resource_size_t as long long int on 32bit systems
cxl/test: Define a CFMWS capable of a 3 way HB interleave
cxl/mem: Do not return error if CONFIG_CXL_MCE unset
tools/testing/cxl: Set Shutdown State support
cxl/pmem: Export dirty shutdown count via sysfs
cxl/pmem: Rename cxl_dirty_shutdown_state()
cxl/pci: Introduce cxl_gpf_get_dvsec()
cxl/pci: Support Global Persistent Flush (GPF)
cxl: Document missing sysfs files
cxl: Plug typos in ABI doc
cxl/pmem: debug invalid serial number data
cxl/cdat: Remove redundant gp_port initialization
cxl/memdev: Remove unused partition values
cxl/region: Drop goto pattern of construct_region()
cxl/region: Drop goto pattern in cxl_dax_region_alloc()
cxl/core: Use guard() to drop goto pattern of cxl_dpa_alloc()
cxl/core: Use guard() to drop the goto pattern of cxl_dpa_free()
...
The current cxl region size only indicates the size of the CXL memory
region without accounting for the extended linear cache size. Retrieve the
cache size from HMAT and append that to the cxl region size for the cxl
region range that matches the SRAT range that has extended linear cache
enabled.
The SRAT defines the whole memory range that includes the extended linear
cache and the CXL memory region. The new HMAT ECN/ECR to the Memory Side
Cache Information Structure defines the size of the extended linear cache
size and matches to the SRAT Memory Affinity Structure by the memory
proxmity domain. Add a helper to match the cxl range to the SRAT memory
range in order to retrieve the cache size.
There are several places that checks the cxl region range against the
decoder range. Use new helper to check between the two ranges and address
the new cache size.
Reviewed-by: Jonathan Cameron <[email protected]>
Reviewed-by: Li Ming <[email protected]>
Reviewed-by: Alison Schofield <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Dave Jiang <[email protected]>
Move the following sysctl tables into arch/x86/kernel/setup.c:
panic_on_{unrecoverable_nmi,io_nmi}
bootloader_{type,version}
io_delay_type
unknown_nmi_panic
acpi_realmode_flags
Variables moved from include/linux/ to arch/x86/include/asm/ because there
is no longer need for them outside arch/x86/kernel:
acpi_realmode_flags
panic_on_{unrecoverable_nmi,io_nmi}
Include <asm/nmi.h> in arch/s86/kernel/setup.h in order to bring in
panic_on_{io_nmi,unrecovered_nmi}.
This is part of a greater effort to move ctl tables into their
respective subsystems which will reduce the merge conflicts in
kerenel/sysctl.c.
Signed-off-by: Joel Granados <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
To avoid arch-specific code in general ACPI initialization flow,
introduce a weak symbol acpi_arch_init().
Currently, arm64 and riscv can utillize this to insert their
arch-specific flow.
In the future, other architectures can also have a chance to define
their own arch-specific ACPI initialization process if necessary.
Reviewed-by: Sunil V L <[email protected]>
Reviewed-by: Sudeep Holla <[email protected]>
Acked-by: Hanjun Guo <[email protected]>
Signed-off-by: Miao Wang <[email protected]>
Link: https://patch.msgid.link/[email protected]
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <[email protected]>
The embedded controller code is mainly used on x86 laptops and cannot
work without PC style I/O port access.
Make this a user-visible configuration option that is default enabled
on x86 but otherwise disabled, and that can never be enabled unless
CONFIG_HAS_IOPORT is also available.
The empty stubs in internal.h help ignore the EC code in configurations
that don't support it. In order to see those stubs, the sbshc code also
has to include this header and drop duplicate declarations.
All the direct callers of ec_read/ec_write already had an x86
dependency and now also need to depend on APCI_EC.
Signed-off-by: Arnd Bergmann <[email protected]>
Acked-by: Guenter Roeck <[email protected]>
Acked-by: Hans de Goede <[email protected]>
Link: https://patch.msgid.link/[email protected]
[ rjw: Subject edits ]
Signed-off-by: Rafael J. Wysocki <[email protected]>
Pull more xen updates from Juergen Gross:
"A second round of Xen related changes and features:
- a small fix of the xen-pciback driver for a warning issued by
sparse
- support PCI passthrough when using a PVH dom0
- enable loading the kernel in PVH mode at arbitrary addresses,
avoiding conflicts with the memory map when running as a Xen dom0
using the host memory layout"
* tag 'for-linus-6.12-rc1a-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/pvh: Add 64bit relocation page tables
x86/kernel: Move page table macros to header
x86/pvh: Set phys_base when calling xen_prepare_pvh()
x86/pvh: Make PVH entrypoint PIC for x86-64
xen: sync elfnote.h from xen tree
xen/pciback: fix cast to restricted pci_ers_result_t and pci_power_t
xen/privcmd: Add new syscall to get gsi from dev
xen/pvh: Setup gsi for passthrough device
xen/pci: Add a function to reset device for xen
In PVH dom0, the gsis don't get registered, but the gsi of
a passthrough device must be configured for it to be able to be
mapped into a domU.
When assigning a device to passthrough, proactively setup the gsi
of the device during that process.
Signed-off-by: Jiqian Chen <[email protected]>
Signed-off-by: Huang Rui <[email protected]>
Signed-off-by: Jiqian Chen <[email protected]>
Reviewed-by: Stefano Stabellini <[email protected]>
Message-ID: <[email protected]>
Signed-off-by: Juergen Gross <[email protected]>
Pull x86 platform drivers updates from Hans de Goede:
- asus-wmi: Add support for vivobook fan profiles
- dell-laptop: Add knobs to change battery charge settings
- lg-laptop: Add operation region support
- intel-uncore-freq: Add support for efficiency latency control
- intel/ifs: Add SBAF test support
- intel/pmc: Ignore all LTRs during suspend
- platform/surface: Support for arm64 based Surface devices
- wmi: Pass event data directly to legacy notify handlers
- x86/platform/geode: switch GPIO buttons and LEDs to software
properties
- bunch of small cleanups, fixes, hw-id additions, etc.
* tag 'platform-drivers-x86-v6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (65 commits)
MAINTAINERS: adjust file entry in INTEL MID PLATFORM
platform/x86: x86-android-tablets: Adjust Xiaomi Pad 2 bottom bezel touch buttons LED
platform/mellanox: mlxbf-pmc: fix lockdep warning
platform/x86/amd: pmf: Add quirk for TUF Gaming A14
platform/x86: touchscreen_dmi: add nanote-next quirk
platform/x86: asus-wmi: don't fail if platform_profile already registered
platform/x86: asus-wmi: add debug print in more key places
platform/x86: intel_scu_wdt: Move intel_scu_wdt.h to x86 subfolder
platform/x86: intel_scu_ipc: Move intel_scu_ipc.h out of arch/x86/include/asm
MAINTAINERS: Add Intel MID section
platform/x86: panasonic-laptop: Add support for programmable buttons
platform/olpc: Remove redundant null pointer checks in olpc_ec_setup_debugfs()
platform/x86: intel/pmc: Ignore all LTRs during suspend
platform/x86: wmi: Call both legacy and WMI driver notify handlers
platform/x86: wmi: Merge get_event_data() with wmi_get_notify_data()
platform/x86: wmi: Remove wmi_get_event_data()
platform/x86: wmi: Pass event data directly to legacy notify handlers
platform/x86: thinkpad_acpi: Fix uninitialized symbol 's' warning
platform/x86: x86-android-tablets: Fix spelling in the comments
platform/x86: ideapad-laptop: Make the scope_guard() clear of its scope
...
Linus Torvalds