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path: root/drivers/platform/x86/intel/pmc
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2023-12-18platform/x86/intel/pmc: Fix hang in pmc_core_send_ltr_ignore()Rajvi Jingar
For input value 0, PMC stays unassigned which causes crash while trying to access PMC for register read/write. Include LTR index 0 in pmc_index and ltr_index calculation. Fixes: 2bcef4529222 ("platform/x86:intel/pmc: Enable debugfs multiple PMC support") Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231216011650.1973941-1-rajvi.jingar@linux.intel.com Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2023-12-04platform/x86/intel/pmc: Show Die C6 counter on Meteor LakeDavid E. Box
Expose the Die C6 counter on Meteor Lake. Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231129222132.2331261-21-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-12-04platform/x86/intel/pmc: Add debug attribute for Die C6 counterDavid E. Box
Add a "die_c6_us_show" debugfs attribute. Reads the counter value using Intel Platform Monitoring Technology (PMT) driver API. This counter is useful for determining the idle residency of CPUs in the compute tile. Also adds a missing forward declaration for punit_ep which was declared in an earlier upstream commit but only used for the first time in this one. Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231129222132.2331261-20-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-12-04platform/x86/intel/pmc: Read low power mode requirements for MTL-M and MTL-PXi Pardee
Add support to read the low power mode requirements for Meteor Lake M and Meteor Lake P. Signed-off-by: Xi Pardee <xi.pardee@intel.com> Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231129222132.2331261-19-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-12-04platform/x86/intel/pmc: Retrieve LPM information using Intel PMTXi Pardee
On supported platforms, the low power mode (LPM) requirements for entering each idle substate are described in Platform Monitoring Technology (PMT) telemetry entries. Provide a function for platform code to attempt to find and read the requirements from the telemetry entries. Signed-off-by: Xi Pardee <xi.pardee@intel.com> Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231129222132.2331261-18-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-12-04platform/x86/intel/pmc: Display LPM requirements for multiple PMCsRajvi Jingar
Update the substate_requirements attribute to display the requirements for all the PMCs on a package. Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com> Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231129222132.2331261-17-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-12-04platform/x86/intel/pmc: Find and register PMC telemetry entriesDavid E. Box
The PMC SSRAM device contains counters that are structured in Intel Platform Monitoring Technology (PMT) telemetry regions. Look for and register these telemetry regions from the driver so that they may be read using the Intel PMT ABI. Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231129222132.2331261-16-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-12-04platform/x86/intel/pmc/mtl: Use return value from pmc_core_ssram_init()David E. Box
Instead of checking for a NULL regbase, use the return value from pmc_core_ssram_init() to check if PMC discovery was successful. If not, use the legacy enumeration method (which only works for the primary PMC). Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231129222132.2331261-15-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-12-04platform/x86/intel/pmc: Cleanup SSRAM discoveryDavid E. Box
Clean up the code handling SSRAM discovery. Handle all resource allocation and cleanup in pmc_core_ssram_get_pmc(). Return the error status from this function but only fail the init if we fail to discover the primary PMC. Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231129222132.2331261-14-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-12-04platform/x86/intel/pmc: Allow pmc_core_ssram_init to failDavid E. Box
Currently, if the PMC SSRAM initialization fails, no error is returned and the only indication is that a PMC device has not been created. Instead, allow an error to be returned and handled directly by the caller. Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231129222132.2331261-13-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-12-04platform/x86:intel/pmc: Call pmc_get_low_power_modes from platform initXi Pardee
In order to setup a table of low power mode requirements for Meteor Lake, pmc_core_get_low_power_modes() will need to be run from platform init code so that the enabled modes are known, allowing the use of the pmc_for_each_mode helper. Make the function global and call it from the platform init code. Signed-off-by: Xi Pardee <xi.pardee@intel.com> Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20231129222132.2331261-12-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-08-09x86/cpu: Fix Gracemont uarchPeter Zijlstra
Alderlake N is an E-core only product using Gracemont micro-architecture. It fits the pre-existing naming scheme perfectly fine, adhere to it. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20230807150405.686834933@infradead.org
2023-06-20platform/x86:intel/pmc: Add Meteor Lake IOE-M PMC related mapsXi Pardee
Add device ID and register maps for the PMC in IO expansion die M in Meteor Lake. Signed-off-by: Xi Pardee <xi.pardee@intel.com> Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20230613225347.2720665-9-rajvi.jingar@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-06-20platform/x86:intel/pmc: Add Meteor Lake IOE-P PMC related mapsXi Pardee
Add device ID and register maps for the PMC in IO expansion die P in Meteor Lake. Signed-off-by: Xi Pardee <xi.pardee@intel.com> Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20230613225347.2720665-8-rajvi.jingar@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-06-20platform/x86:intel/pmc: Use SSRAM to discover pwrm base address of primary PMCXi Pardee
On older platforms, the base address for PMC was hardcoded in the driver. Newer platforms can now retrieve the base address from SSRAM. Use SSRAM to discover pwrm base address on Meteor Lake platform. If this method fails, it will fall back to the hardcoded value. Signed-off-by: Xi Pardee <xi.pardee@intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20230613225347.2720665-7-rajvi.jingar@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-06-20platform/x86:intel/pmc: Discover PMC devicesDavid E. Box
On platforms with multiple PMCs, additional PMC devices are discovered in the SSRAM device associated with the primary PMC. Add support for discovering PMC devices from SSRAM. Use PMC devid to assign the corresponding register map. Signed-off-by: Xi Pardee <xi.pardee@intel.com> Signed-off-by: David E. Box <david.e.box@linux.intel.com> Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20230613225347.2720665-6-rajvi.jingar@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-06-20platform/x86:intel/pmc: Enable debugfs multiple PMC supportXi Pardee
Enable debugfs support for multiple PMC. These debugfs attributes show information for all enabled PMCs. pch_ip_power_gating_status substate_status_registers substate_live_status_registers ltr_show ltr_ignore Signed-off-by: Xi Pardee <xi.pardee@intel.com> Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20230613225347.2720665-5-rajvi.jingar@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-06-20platform/x86:intel/pmc: Add support to handle multiple PMCsXi Pardee
To support platforms with multiple PMCs, add a PMC device structure to support each PMC instance. Signed-off-by: Xi Pardee <xi.pardee@intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20230613225347.2720665-4-rajvi.jingar@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-06-20platform/x86:intel/pmc: Combine core_init() and core_configure()Xi Pardee
Combine core_init() and core_configure() functions to have a cleaner setup for platforms. Signed-off-by: Xi Pardee <xi.pardee@intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20230613225347.2720665-3-rajvi.jingar@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-06-20platform/x86:intel/pmc: Update maps for Meteor Lake P/M platformsXi Pardee
Fix the IP name errors in the register maps used by the following debugfs attributes in the Meteor Lake SOC-M PMC. pfear_sts lpm_sts ltr_show Fixes: c5ad454a12c6 ("platform/x86: intel/pmc/core: Add Meteor Lake support to pmc core driver") Signed-off-by: Xi Pardee <xi.pardee@intel.com> Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com> Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Link: https://lore.kernel.org/r/20230613225347.2720665-2-rajvi.jingar@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-06-13platform/x86/intel/pmc/mtl: Put devices in D3 during resumeDavid E. Box
An earlier commit placed some driverless devices in D3 during boot so that they don't block package cstate entry on Meteor Lake. Also place these devices in D3 after resume from suspend. Fixes: 336ba968d3e3 ("platform/x86/intel/pmc/mtl: Put GNA/IPU/VPU devices in D3") Signed-off-by: David E. Box <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20230607233849.239047-2-david.e.box@linux.intel.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-06-13platform/x86/intel/pmc: Add resume callbackDavid E. Box
Add a resume callback to perform platform specific functions during resume from suspend. Signed-off-by: David E. Box <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20230607233849.239047-1-david.e.box@linux.intel.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-06-08platform/x86:intel/pmc: Remove Meteor Lake S platform supportXi Pardee
commit c5ad454a12c6 ("platform/x86: intel/pmc/core: Add Meteor Lake support to pmc core driver") was supposed to add support for Meter Lake P/M and mistakenly added support for Meteor Lake S instead. Meteor Lake P/M support was added later and MTL-S support needs to be removed since its currently assigned to the wrong register maps. Fixes: c5ad454a12c6 ("platform/x86: intel/pmc/core: Add Meteor Lake support to pmc core driver") Signed-off-by: Xi Pardee <xi.pardee@intel.com> Signed-off-by: David E. Box <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20230601004706.871528-1-xi.pardee@intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-04-25Merge tag 'pm-6.4-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management updates from Rafael Wysocki: "These update several cpufreq drivers and the cpufreq core, add sysfs interface for exposing the time really spent in the platform low-power state during suspend-to-idle, update devfreq (core and drivers) and the pm-graph suite of tools and clean up code. Specifics: - Fix the frequency unit in cpufreq_verify_current_freq checks() Sanjay Chandrashekara) - Make mode_state_machine in amd-pstate static (Tom Rix) - Make the cpufreq core require drivers with target_index() to set freq_table (Viresh Kumar) - Fix typo in the ARM_BRCMSTB_AVS_CPUFREQ Kconfig entry (Jingyu Wang) - Use of_property_read_bool() for boolean properties in the pmac32 cpufreq driver (Rob Herring) - Make the cpufreq sysfs interface return proper error codes on obviously invalid input (qinyu) - Add guided autonomous mode support to the AMD P-state driver (Wyes Karny) - Make the Intel P-state driver enable HWP IO boost on all server platforms (Srinivas Pandruvada) - Add opp and bandwidth support to tegra194 cpufreq driver (Sumit Gupta) - Use of_property_present() for testing DT property presence (Rob Herring) - Remove MODULE_LICENSE in non-modules (Nick Alcock) - Add SM7225 to cpufreq-dt-platdev blocklist (Luca Weiss) - Optimizations and fixes for qcom-cpufreq-hw driver (Krzysztof Kozlowski, Konrad Dybcio, and Bjorn Andersson) - DT binding updates for qcom-cpufreq-hw driver (Konrad Dybcio and Bartosz Golaszewski) - Updates and fixes for mediatek driver (Jia-Wei Chang and AngeloGioacchino Del Regno) - Use of_property_present() for testing DT property presence in the cpuidle code (Rob Herring) - Drop unnecessary (void *) conversions from the PM core (Li zeming) - Add sysfs files to represent time spent in a platform sleep state during suspend-to-idle and make AMD and Intel PMC drivers use them Mario Limonciello) - Use of_property_present() for testing DT property presence (Rob Herring) - Add set_required_opps() callback to the 'struct opp_table', to make the code paths cleaner (Viresh Kumar) - Update the pm-graph siute of utilities to v5.11 with the following changes: * New script which allows users to install the latest pm-graph from the upstream github repo. * Update all the dmesg suspend/resume PM print formats to be able to process recent timelines using dmesg only. * Add ethtool output to the log for the system's ethernet device if ethtool exists. * Make the tool more robustly handle events where mangled dmesg or ftrace outputs do not include all the requisite data. - Make the sleepgraph utility recognize "CPU killed" messages (Xueqin Luo) - Remove unneeded SRCU selection in Kconfig because it's always set from devfreq core (Paul E. McKenney) - Drop of_match_ptr() macro from exynos-bus.c because this driver is always using the DT table for driver probe (Krzysztof Kozlowski) - Use the preferred of_property_present() instead of the low-level of_get_property() on exynos-bus.c (Rob Herring) - Use devm_platform_get_and_ioream_resource() in exyno-ppmu.c (Yang Li)" * tag 'pm-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (44 commits) platform/x86/intel/pmc: core: Report duration of time in HW sleep state platform/x86/intel/pmc: core: Always capture counters on suspend platform/x86/amd: pmc: Report duration of time in hw sleep state PM: Add sysfs files to represent time spent in hardware sleep state cpufreq: use correct unit when verify cur freq cpufreq: tegra194: add OPP support and set bandwidth cpufreq: amd-pstate: Make varaiable mode_state_machine static PM: core: Remove unnecessary (void *) conversions cpufreq: drivers with target_index() must set freq_table PM / devfreq: exynos-ppmu: Use devm_platform_get_and_ioremap_resource() OPP: Move required opps configuration to specialized callback OPP: Handle all genpd cases together in _set_required_opps() cpufreq: qcom-cpufreq-hw: Revert adding cpufreq qos dt-bindings: cpufreq: cpufreq-qcom-hw: Add QCM2290 dt-bindings: cpufreq: cpufreq-qcom-hw: Sanitize data per compatible dt-bindings: cpufreq: cpufreq-qcom-hw: Allow just 1 frequency domain cpufreq: Add SM7225 to cpufreq-dt-platdev blocklist cpufreq: qcom-cpufreq-hw: fix double IO unmap and resource release on exit cpufreq: mediatek: Raise proc and sram max voltage for MT7622/7623 cpufreq: mediatek: raise proc/sram max voltage for MT8516 ...
2023-04-25Merge tag 'platform-drivers-x86-v6.4-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: - AMD PMC and PMF drivers: - Numerous bugfixes - Intel Speed Select Technology (ISST): - TPMI (Topology Aware Register and PM Capsule Interface) support for ISST support on upcoming processor models - Various other improvements / new hw support - tools/intel-speed-select: TPMI support + other improvements - Intel In Field Scan (IFS): - Add Array Bist test support - New drivers: - intel_bytcrc_pwrsrc Crystal Cove PMIC pwrsrc / reset-reason driver - lenovo-ymc Yoga Mode Control driver for reporting SW_TABLET_MODE - msi-ec Driver for MSI laptop EC features like battery charging limits - apple-gmux: - Support for new MMIO based models (T2 Macs) - Honor acpi_backlight= auto-detect-code + kernel cmdline option to switch between gmux and apple_bl backlight drivers and remove own custom handling for this - x86-android-tablets: Refactor / cleanup + new hw support - Miscellaneous other cleanups / fixes * tag 'platform-drivers-x86-v6.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (178 commits) platform/x86: x86-android-tablets: Add accelerometer support for Yoga Tablet 2 1050/830 series platform/x86: x86-android-tablets: Add "yogabook-touch-kbd-digitizer-switch" pdev for Lenovo Yoga Book platform/x86: x86-android-tablets: Add Wacom digitizer info for Lenovo Yoga Book platform/x86: x86-android-tablets: Update Yoga Book HiDeep touchscreen comment platform/x86: thinkpad_acpi: Fix Embedded Controller access on X380 Yoga platform/x86/intel/sdsi: Change mailbox timeout platform/x86/intel/pmt: Ignore uninitialized entries platform/x86: amd: pmc: provide user message where s0ix is not supported platform/x86/amd: pmc: Fix memory leak in amd_pmc_stb_debugfs_open_v2() mlxbf-bootctl: Add sysfs file for BlueField boot fifo platform/x86: amd: pmc: Remove __maybe_unused from amd_pmc_suspend_handler() platform/x86/intel/pmc/mtl: Put GNA/IPU/VPU devices in D3 platform/x86/amd: pmc: Move out of BIOS SMN pair for STB init platform/x86/amd: pmc: Utilize SMN index 0 for driver probe platform/x86/amd: pmc: Move idlemask check into `amd_pmc_idlemask_read` platform/x86/amd: pmc: Don't dump data after resume from s0i3 on picasso platform/x86/amd: pmc: Hide SMU version and program attributes for Picasso platform/x86/amd: pmc: Don't try to read SMU version on Picasso platform/x86/amd/pmf: Move out of BIOS SMN pair for driver probe platform/x86: intel-uncore-freq: Add client processors ...
2023-04-20platform/x86/intel/pmc: core: Report duration of time in HW sleep stateMario Limonciello
intel_pmc_core displays a warning when the module parameter `warn_on_s0ix_failures` is set and a suspend didn't get to a HW sleep state. Report this to the standard kernel reporting infrastructure so that userspace software can query after the suspend cycle is done. Reviewed-by: Hans de Goede <hdegoede@redhat.com> Suggested-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Reviewed-by: David E. Box <david.e.box@linux.intel.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-04-20platform/x86/intel/pmc: core: Always capture counters on suspendMario Limonciello
Currently counters are only captured during suspend when the warn_on_s0ix_failures module parameter is set. In order to relay this counter information to the kernel reporting infrastructure adjust it so that the counters are always captured. warn_on_s0ix_failures will be utilized solely for messaging by the driver instead. Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: David E. Box <david.e.box@linux.intel.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2023-04-11platform/x86/intel/pmc/mtl: Put GNA/IPU/VPU devices in D3David E. Box
On Meteor Lake, the GNA, IPU, and VPU devices are booted in D0 power state and will block the SoC from going into the deepest Package C-state if a driver is not present. Put each device in D3hot if no driver is found. Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20230409192535.914540-1-david.e.box@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-03-27platform/x86/intel/pmc: Alder Lake PCH slp_s0_residency fixRajvi Jingar
For platforms with Alder Lake PCH (Alder Lake S and Raptor Lake S) the slp_s0_residency attribute has been reporting the wrong value. Unlike other platforms, ADL PCH does not have a counter for the time that the SLP_S0 signal was asserted. Instead, firmware uses the aggregate of the Low Power Mode (LPM) substate counters as the S0ix value. Since the LPM counters run at a different frequency, this lead to misreporting of the S0ix time. Add a check for Alder Lake PCH and adjust the frequency accordingly when display slp_s0_residency. Fixes: bbab31101f44 ("platform/x86/intel: pmc/core: Add Alderlake support to pmc core driver") Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com> Signed-off-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20230320212029.3154407-1-david.e.box@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-03-07platform/x86: intel: pmc: core: Convert to platform remove callback ↵Uwe Kleine-König
returning void The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230302144732.1903781-24-u.kleine-koenig@pengutronix.de Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-02-02platform/x86: intel/pmc: Switch to use acpi_evaluate_dsm_typed()Andy Shevchenko
The acpi_evaluate_dsm_typed() provides a way to check the type of the object evaluated by _DSM call. Use it instead of open coded variant. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com> Link: https://lore.kernel.org/r/20230118095440.41634-1-andriy.shevchenko@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2023-01-12platform/x86: intel/pmc/core: Add Meteor Lake mobile supportGayatri Kammela
Add Meteor Lake mobile support to pmc core driver. Meteor Lake mobile parts reuse all the Meteor Lake PCH IPs. Cc: David E Box <david.e.box@linux.intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com> Link: https://lore.kernel.org/r/20221228230553.2497183-1-gayatri.kammela@linux.intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-11-21platform/x86: intel/pmc/core: Add Meteor Lake support to pmc core driverGayatri Kammela
Add Meteor Lake client and mobile support to pmc core driver. This patch adds legacy support. Cc: David E Box <david.e.box@linux.intel.com> Suggested-by: David E Box <david.e.box@linux.intel.com> Reviewed-by: "David E. Box" <david.e.box@linux.intel.com> Signed-off-by: Sukumar Ghorai <sukumar.ghorai@intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com> Signed-off-by: "David E. Box" <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20221114183257.2067662-9-gayatri.kammela@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-11-21platform/x86: intel/pmc: Relocate Alder Lake PCH supportGayatri Kammela
Create adl.c for Alder Lake PCH specific structures and init(). This file supports Alder Lake, Raptor Lake and Raptor Lake S platforms There are no functional changes involved. Cc: David E Box <david.e.box@linux.intel.com> Reviewed-by: "David E. Box" <david.e.box@linux.intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com> Signed-off-by: "David E. Box" <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20221114183257.2067662-8-gayatri.kammela@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-11-21platform/x86: intel/pmc: Relocate Tiger Lake PCH supportGayatri Kammela
Create tgl.c for Tiger Lake PCH specific structures and init(). This file supports Tiger Lake, Elkhart Lake, Rocket Lake, Alder Lake mobile, Alder Lake N and Raptor Lake P platforms. There are no functional changes involved. Cc: David E Box <david.e.box@linux.intel.com> Reviewed-by: "David E. Box" <david.e.box@linux.intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com> Signed-off-by: "David E. Box" <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20221114183257.2067662-7-gayatri.kammela@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-11-21platform/x86: intel/pmc: Relocate Ice Lake PCH supportXi Pardee
Create icl.c for Ice Lake PCH specific structures and init(). This file supports Ice Lake, Ice Lake NNPI and Jasper Lake platforms. There are no functional changes involved. Cc: David E Box <david.e.box@linux.intel.com> Reviewed-by: "David E. Box" <david.e.box@linux.intel.com> Signed-off-by: Xi Pardee <xi.pardee@intel.com> Signed-off-by: "David E. Box" <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20221114183257.2067662-6-gayatri.kammela@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-11-21platform/x86: intel/pmc: Relocate Cannon Lake Point PCH supportXi Pardee
Create cnp.c for Cannon Lake Point PCH specific structures and init(). This file supports Cannon Lake and Comet Lake platforms. There are no functional changes involved. Cc: David E Box <david.e.box@linux.intel.com> Reviewed-by: "David E. Box" <david.e.box@linux.intel.com> Signed-off-by: Xi Pardee <xi.pardee@intel.com> Signed-off-by: "David E. Box" <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20221114183257.2067662-5-gayatri.kammela@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-11-21platform/x86: intel/pmc: Relocate Sunrise Point PCH supportRajvi Jingar
Create spt.c for Sunrise Point PCH specific structures and init(). This file supports Sky Lake and Kaby Lake platforms. There are no functional changes involved. Cc: David E Box <david.e.box@linux.intel.com> Reviewed-by: "David E. Box" <david.e.box@linux.intel.com> Signed-off-by: Rajvi Jingar <rajvi.jingar@linux.intel.com> Signed-off-by: "David E. Box" <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20221114183257.2067662-4-gayatri.kammela@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-11-21platform/x86: intel/pmc: Move variable declarations and definitions to ↵Xi Pardee
header and core.c Move the msr_map variable declaration to core.h and move the pmc_lpm_modes definition to core.c. This is a prepartory patch for redesigning the pmc core driver as the variables will be used in multiple PCH specific files. Cc: David E Box <david.e.box@linux.intel.com> Reviewed-by: "David E. Box" <david.e.box@linux.intel.com> Signed-off-by: Xi Pardee <xi.pardee@intel.com> Signed-off-by: "David E. Box" <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20221114183257.2067662-3-gayatri.kammela@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-11-21platform/x86: intel/pmc: Replace all the reg_map with init functionsGayatri Kammela
The current implementation of pmc core driver has the reg_map assigned to the CPUID of each platform. Replace the reg_map with init functions that are defined for each platform. This is a preparatory patch for redesigning the pmc core driver. Cc: David E Box <david.e.box@linux.intel.com> Reviewed-by: "David E. Box" <david.e.box@linux.intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com> Signed-off-by: "David E. Box" <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20221114183257.2067662-2-gayatri.kammela@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-11-16platform/x86/intel: pmc: Fix repeated word in commentJilin Yuan
Delete the redundant word 'to'. Signed-off-by: Jilin Yuan <yuanjilin@cdjrlc.com> Link: https://lore.kernel.org/r/20221019125355.50674-1-yuanjilin@cdjrlc.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-11-15platform/x86/intel: pmc: Don't unconditionally attach Intel PMC when virtualizedRoger Pau Monné
The current logic in the Intel PMC driver will forcefully attach it when detecting any CPU on the intel_pmc_core_platform_ids array, even if the matching ACPI device is not present. There's no checking in pmc_core_probe() to assert that the PMC device is present, and hence on virtualized environments the PMC device probes successfully, even if the underlying registers are not present. Before commit 21ae43570940 ("platform/x86: intel_pmc_core: Substitute PCI with CPUID enumeration") the driver would check for the presence of a specific PCI device, and that prevented the driver from attaching when running virtualized. Fix by only forcefully attaching the PMC device when not running virtualized. Note that virtualized platforms can still get the device to load if the appropriate ACPI device is present on the tables provided to the VM. Make an exception for the Xen initial domain, which does have full hardware access, and hence can attach to the PMC if present. Fixes: 21ae43570940 ("platform/x86: intel_pmc_core: Substitute PCI with CPUID enumeration") Signed-off-by: Roger Pau Monné <roger.pau@citrix.com> Acked-by: David E. Box <david.e.box@linux.intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20221110163145.80374-1-roger.pau@citrix.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-10-24platform/x86/intel: pmc/core: Add Raptor Lake support to pmc core driverGayatri Kammela
Add Raptor Lake client parts (both RPL and RPL_S) support to pmc core driver. Raptor Lake client parts reuse all the Alder Lake PCH IPs. Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: David Box <david.e.box@intel.com> Acked-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com> Link: https://lore.kernel.org/r/20220912233307.409954-2-gayatri.kammela@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-06-27platform/x86: intel/pmc: Add Alder Lake N support to PMC core driverGayatri Kammela
Add Alder Lake N (ADL-N) to the list of the platforms that Intel's PMC core driver supports. Alder Lake N reuses all the TigerLake PCH IPs. Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: David E. Box <david.e.box@linux.intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@linux.intel.com> Reviewed-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com> Link: https://lore.kernel.org/r/20220615002751.3371730-1-gayatri.kammela@linux.intel.com Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-06-10platform/x86/intel: pmc: Support Intel Raptorlake PGeorge D Sworo
Add Raptorlake P to the list of the platforms that intel_pmc_core driver supports for pmc_core device. Raptorlake P PCH is based on Alderlake P PCH. Signed-off-by: George D Sworo <george.d.sworo@intel.com> Reviewed-by: David E. Box <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20220602012617.20100-1-george.d.sworo@intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-04-27platform/x86/intel: pmc/core: Use kobj_to_dev()Minghao Chi
Use kobj_to_dev() instead of open-coding it. Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: Minghao Chi <chi.minghao@zte.com.cn> Link: https://lore.kernel.org/r/20220425105525.3515831-1-chi.minghao@zte.com.cn Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-04-27platform/x86/intel: pmc/core: change pmc_lpm_modes to staticTom Rix
Sparse reports this issue core.c: note: in included file: core.h:239:12: warning: symbol 'pmc_lpm_modes' was not declared. Should it be static? Global variables should not be defined in headers. This only works because core.h is only included by core.c. Single file use variables should be static, so change its storage-class specifier to static. Signed-off-by: Tom Rix <trix@redhat.com> Reviewed-by: David E. Box <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/20220423123048.591405-1-trix@redhat.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-12-23platform/x86: intel_pmc_core: fix memleak on registration failureJohan Hovold
In case device registration fails during module initialisation, the platform device structure needs to be freed using platform_device_put() to properly free all resources (e.g. the device name). Fixes: 938835aa903a ("platform/x86: intel_pmc_core: do not create a static struct device") Cc: stable@vger.kernel.org # 5.9 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20211222105023.6205-1-johan@kernel.org Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-08-20platform/x86/intel: pmc/core: Add GBE Package C10 fix for Alder Lake PCHDavid E. Box
Alder PCH uses the same Gigabit Ethernet (GBE) device as Tiger Lake PCH which cannot achieve PC10 without ignoring the PMC GBE LTR. Add this work around for Alder Lake PCH as well. Cc: Chao Qin <chao.qin@intel.com> Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: You-Sheng Yang <vicamo.yang@canonical.com> Acked-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: David E. Box <david.e.box@linux.intel.com> Link: https://lore.kernel.org/r/9168e8bd687f2d0d5eb0ed116e08d0764eadf7b3.1629091915.git.gayatri.kammela@intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-08-20platform/x86/intel: pmc/core: Add Alder Lake low power mode support for pmc coreGayatri Kammela
Alder Lake has 14 status registers that are memory mapped. These registers show the status of the low power mode requirements. The registers are latched on every C10 entry or exit and on every s0ix.y entry/exit. Accessing these registers is useful for debugging any low power related activities. Thus, add debugfs entry to access low power mode status registers. Cc: Chao Qin <chao.qin@intel.com> Cc: Srinivas Pandruvada <srinivas.pandruvada@intel.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: David Box <david.e.box@intel.com> Tested-by: You-Sheng Yang <vicamo.yang@canonical.com> Acked-by: Rajneesh Bhardwaj <irenic.rajneesh@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com> Link: https://lore.kernel.org/r/d27ec98589a5aaa569bbce0e937ed03779fc0a22.1629091915.git.gayatri.kammela@intel.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-06 15:59:51 +0000