Amit Singh Tomar (1): fs/resctrl: Remove the limit on the number of CLOSID James Morse (84): x86/resctrl: Add a helper to avoid reaching into the arch code resource list x86/resctrl: Move ctrlval string parsing links away from the arch code x86/resctrl: Add helper for setting CPU default properties x86/resctrl: Remove rdtgroup from update_cpu_closid_rmid() x86/resctrl: Export resctrl fs's init function x86/resctrl: Wrap resctrl_arch_find_domain() around rdt_find_domain() x86/resctrl: Move resctrl types to a separate header x86/resctrl: Add a resctrl helper to reset all the resources x86/resctrl: Move monitor init work to a resctrl init call x86/resctrl: Move monitor exit work to a restrl exit call x86/resctrl: Move max_{name,data}_width into resctrl code x86/resctrl: Stop using the for_each_*_rdt_resource() walkers x86/resctrl: Export the is_mbm_*_enabled() helpers to asm/resctrl.h x86/resctrl: Add resctrl_arch_is_evt_configurable() to abstract BMEC x86/resctrl: Change mon_event_config_{read,write}() to be arch helpers x86/resctrl: Allow resctrl_arch_mon_event_config_write() to return an error x86/resctrl: Allow an architecture to disable pseudo lock x86/resctrl: Make prefetch_disable_bits belong to the arch code x86/resctrl: Make resctrl_arch_pseudo_lock_fn() take a plr x86/resctrl: Move thread_throttle_mode_init() to be managed by resctrl x86/resctrl: Move get_config_index() to a header x86/resctrl: Claim get_domain_from_cpu() for resctrl x86/resctrl: Describe resctrl's bitmap size assumptions x86/resctrl: Drop __init/__exit on assorted symbols fs/resctrl: Add boiler plate for external resctrl code x86/resctrl: Move mbm_cfg_mask to struct rdt_resource x86/resctrl: Move the filesystem bits to headers visible to fs/resctrl x86/resctrl: Move the filesystem portions of resctrl to live in '/fs/' arm64: head.S: Initialise MPAM EL2 registers and disable traps arm64: cpufeature: discover CPU support for MPAM KVM: arm64: Fix missing traps of guest accesses to the MPAM registers KVM: arm64: Disable MPAM visibility by default, and handle traps arm64: mpam: Context switch the MPAM registers untested: KVM: arm64: Force guest EL1 to use user-space's partid configuration ACPI / PPTT: Provide a helper to walk processor containers ACPI / PPTT: Find PPTT cache level by ID ACPI / PPTT: Add a helper to fill a cpumask from a processor container ACPI / PPTT: Add a helper to fill a cpumask from a cache_id cacheinfo: Expose the code to generate a cache-id from a device_node drivers: base: cacheinfo: Add helper to find the cache size from cpu+level ACPI / MPAM: Parse the MPAM table arm_mpam: Add probe/remove for mpam msc driver and kbuild boiler plate arm_mpam: Add the class and component structures for ris firmware described arm_mpam: Add MPAM MSC register layout definitions arm_mpam: Add cpuhp callbacks to probe MSC hardware arm_mpam: Probe MSCs to find the supported partid/pmg values arm_mpam: Probe the hardware features resctrl supports arm_mpam: Merge supported features during mpam_enable() into mpam_class arm_mpam: Reset MSC controls from cpu hp callbacks arm_mpam: Add a helper to touch an MSC from any CPU arm_mpam: Extend reset logic to allow devices to be reset any time arm_mpam: Register and enable IRQs arm_mpam: Use the arch static key to indicate when mpam is enabled arm_mpam: Allow configuration to be applied and restored during cpu online arm_mpam: Probe and reset the rest of the features arm_mpam: Add helpers to allocate monitors arm_mpam: Add mpam_msmon_read() to read monitor value arm_mpam: Track bandwidth counter state for overflow and power management arm_mpam: Add helper to reset saved mbwu state arm_mpam: resctrl: Add boilerplate cpuhp and domain allocation arm_mpam: resctrl: Pick the caches we will use as resctrl resources arm_mpam: resctrl: Pick a value for num_rmid arm_mpam: resctrl: Implement resctrl_arch_reset_resources() arm_mpam: resctrl: Add resctrl_arch_get_config() arm_mpam: resctrl: Implement helpers to update configuration arm_mpam: resctrl: Add CDP emulation arm64: mpam: Add helpers to change a tasks and cpu mpam partid/pmg values arm_mpam: resctrl: Add rmid index helpers untested: arm_mpam: resctrl: Add support for MB resource untested: arm_mpam: resctrl: Add support for mbm counters arm_mpam: resctrl: Allow resctrl to allocate monitors arm_mpam: resctrl: Add resctrl_arch_rmid_read() and resctrl_arch_reset_rmid() untested: arm_mpam: resctrl: Allow monitors to be configured arm_mpam: resctrl: Add empty definitions for pseudo lock arm_mpam: resctrl: Add empty definitions for fine-grained enables arm_mpam: resctrl: Add dummy definition for free running counters arm64: mpam: Select ARCH_HAS_CPU_RESCTRL perf/arm-cmn: Stop claiming all the resources arm_mpam: resctrl: Tell resctrl about cpu/domain online/offline arm_mpam: resctrl: Call resctrl_exit() in the event of errors arm_mpam: resctrl: Update the rmid reallocation limit arm64: mpam: Add cpu_pm notifier to restore MPAM sysregs arm64: mpam: Restore the expected MPAM sysregs on cpuhp x86/resctrl: Add max_bw to struct resctrl_membw Rob Herring (3): cacheinfo: Allow for >32-bit cache 'id' cacheinfo: Set cache 'id' based on DT data dt-bindings: arm: Add MPAM MSC binding Rohit Mathew (2): arm_mpam: Probe for long/lwd mbwu counters arm_mpam: Use long MBWU counters if supported Zeng Heng (78): Revert "x86/resctrl: Fix arch_mbm_* array overrun on SNC" Revert "x86/resctrl: Detect Sub-NUMA Cluster (SNC) mode" Revert "x86/resctrl: Enable shared RMID mode on Sub-NUMA Cluster (SNC) systems" Revert "x86/resctrl: Make __mon_event_count() handle sum domains" Revert "x86/resctrl: Fill out rmid_read structure for smp_call*() to read a counter" Revert "x86/resctrl: Handle removing directories in Sub-NUMA Cluster (SNC) mode" Revert "x86/resctrl: Create Sub-NUMA Cluster (SNC) monitor files" Revert "x86/resctrl: Allocate a new field in union mon_data_bits" Revert "x86/resctrl: Refactor mkdir_mondata_subdir() with a helper function" Revert "x86/resctrl: Initialize on-stack struct rmid_read instances" Revert "x86/resctrl: Add a new field to struct rmid_read for summation of domains" Revert "x86/resctrl: Prepare for new Sub-NUMA Cluster (SNC) monitor files" Revert "x86/resctrl: Block use of mba_MBps mount option on Sub-NUMA Cluster (SNC) systems" Revert "x86/resctrl: Introduce snc_nodes_per_l3_cache" Revert "x86/resctrl: Add node-scope to the options for feature scope" Revert "x86/resctrl: Split the rdt_domain and rdt_hw_domain structures" Revert "x86/resctrl: Prepare for different scope for control/monitor operations" Revert "x86/resctrl: Prepare to split rdt_domain structure" Revert "x86/resctrl: Prepare for new domain scope" Revert "x86/resctrl: Replace open coded cacheinfo searches" Revert "x86/resctrl: Add tracepoint for llc_occupancy tracking" Revert "x86/resctrl: Rename pseudo_lock_event.h to trace.h" Revert "x86/resctrl: Simplify call convention for MSR update functions" Revert "x86/resctrl: Pass domain to target CPU" arm_mpam: control memory bandwidth with hard limit flag resctrl: fix undefined reference to lockdep_is_cpus_held() fs/resctrl: Move rdtgroup_setup_default() out of init.text section Revert "KVM: arm64: Disable MPAM visibility by default, and handle traps" arm64: cpufeature: Both the major and the minor version numbers need to be checked arm64/mpam: skip mpam initialize under kdump kernel x86: resctrl: Fix illegal access by the chips not having RDT Revert "arm64: head.S: Initialise MPAM EL2 registers and disable traps" arm64/mpam: Check mpam_detect_is_enabled() before accessing MPAM registers arm64/mpam: Fix redefined reference of 'mpam_detect_is_enabled' fs/resctrl: Adapt to the hardware topology structures of RDT and MPAM arm64/mpam: Support MATA monitor feature for MPAM arm64/mpam: Add judgment to distinguish MSMON_MBWU_CAPTURE definition arm64/mpam: Fix out-of-bound access of mbwu_state array arm64/mpam: fix MBA granularity conversion formula arm64/mpam: fix bug in percent_to_mbw_max() arm64/mpam: Fix out-of-bound access of cfg array arm64/mpam: Improve conversion accuracy between percent and fixed-point fraction arm64/mpam: Add write memory barrier to guarantee monitor results arm64/mpam: Try reading again if monitor instance returns not ready arm64/mpam: fix memleak in resctrl_arch_mon_ctx_alloc_no_wait() arm64/mpam: fix impossible condition in get_cpumask_from_cache_id() arm64/mpam: fix impossible condition in resctrl_arch_rmid_read() arm64/mpam: Optimize CSU/MBWU monitor multiplexing fs/resctrl: Determine whether the MBM monitors require overflow checking arm64/mpam: Set the cpbm width of msc class with the minimum arm64/mpam: Correct the judgment condition of the CMAX feature fs/resctrl: Fix kmemleak caused by closid_init() arm64/mpam: Fix allocated cache size information arm64/mpam: Add debugging information about CDP monitor value fs/resctrl: Fix configuration to wrong control group when CDP is enabled fs/resctrl: As a pre-patch for expanding MPAM's QoS capability arm64/mpam: Add CMAX feature arm64/mpam: Add mbw_min and cmin features arm64/mpam: Add PRIO feature arm64/mpam: Add limit feature x86/resctrl: Add a handling path of default label in get_arch_mbm_state() fs/resctrl: Create l2 cache monitors fs/resctrl: Add l2 mount option to enable L2 msc arm64/mpam: Refuse cpu offline when L2 msc is enabled arm64/mpam: Refuse to enter powerdown state after L2 msc updated fs/resctrl: Fix the crash caused by mounting resctrl but not support RDT arm64/mpam: Fix num_rmids information arm64/mpam: Set 1 as the minimum setting value for MBA arm64/mpam: Update QoS partition default value fs/resctrl: Free mbm_total and mbm_local when fails fs/resctrl: Restore default settings for all resctrl_res_level fs/resctrl: Add missing rdt_last_cmd_clear() after rdtgroup_kn_lock_live() arm64/mpam: Add MPAM manual fs/resctrl: Prevent idle RMIDs from not being released in time from limbo fs/resctrl: L2_MON does not support the limbo mechanism fs/resctrl: Fix return value in rdtgroup_pseudo_locked_in_hierarchy() x86/resctrl: Revert x86 RDT code back x86/resctrl: Decouple ARM MPAM from x86 RDT .../arch/arm64/cpu-feature-registers.rst | 2 + Documentation/arch/arm64/mpam.md | 587 +++ .../devicetree/bindings/arm/arm,mpam-msc.yaml | 227 + MAINTAINERS | 2 + arch/Kconfig | 8 + arch/arm64/Kconfig | 22 +- arch/arm64/include/asm/cpu.h | 1 + arch/arm64/include/asm/cpufeature.h | 22 + arch/arm64/include/asm/kvm_arm.h | 1 + arch/arm64/include/asm/mpam.h | 167 + arch/arm64/include/asm/resctrl.h | 1 + arch/arm64/include/asm/sysreg.h | 8 + arch/arm64/include/asm/thread_info.h | 3 + arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/cpufeature.c | 110 + arch/arm64/kernel/cpuinfo.c | 6 + arch/arm64/kernel/image-vars.h | 5 + arch/arm64/kernel/mpam.c | 75 + arch/arm64/kernel/process.c | 7 + arch/arm64/kvm/hyp/include/hyp/switch.h | 32 + arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h | 27 + arch/arm64/kvm/hyp/nvhe/switch.c | 11 + arch/arm64/kvm/hyp/vhe/sysreg-sr.c | 1 + arch/arm64/kvm/sys_regs.c | 20 + arch/arm64/tools/cpucaps | 1 + arch/arm64/tools/sysreg | 33 + arch/x86/Kconfig | 3 +- arch/x86/kernel/cpu/resctrl/rdtgroup.c | 4 +- drivers/acpi/arm64/Kconfig | 3 + drivers/acpi/arm64/Makefile | 2 + drivers/acpi/arm64/mpam.c | 369 ++ drivers/acpi/pptt.c | 278 +- drivers/acpi/tables.c | 2 +- drivers/base/cacheinfo.c | 41 +- drivers/perf/arm-cmn.c | 12 +- drivers/platform/Kconfig | 2 + drivers/platform/Makefile | 1 + drivers/platform/mpam/Kconfig | 8 + drivers/platform/mpam/Makefile | 1 + drivers/platform/mpam/mpam_devices.c | 2491 ++++++++++ drivers/platform/mpam/mpam_internal.h | 595 +++ drivers/platform/mpam/mpam_resctrl.c | 1599 +++++++ fs/Kconfig | 1 + fs/Makefile | 1 + fs/resctrl/Kconfig | 24 + fs/resctrl/Makefile | 1 + fs/resctrl/ctrlmondata.c | 563 +++ fs/resctrl/internal.h | 295 ++ fs/resctrl/monitor.c | 814 ++++ fs/resctrl/psuedo_lock.c | 1134 +++++ fs/resctrl/rdtgroup.c | 4066 +++++++++++++++++ include/linux/acpi.h | 17 + include/linux/arm_mpam.h | 109 + include/linux/cacheinfo.h | 28 +- include/linux/resctrl.h | 7 + include/linux/resctrl_mpam.h | 452 ++ include/linux/resctrl_types.h | 119 + 57 files changed, 14410 insertions(+), 12 deletions(-) create mode 100644 Documentation/arch/arm64/mpam.md create mode 100644 Documentation/devicetree/bindings/arm/arm,mpam-msc.yaml create mode 100644 arch/arm64/include/asm/mpam.h create mode 100644 arch/arm64/include/asm/resctrl.h create mode 100644 arch/arm64/kernel/mpam.c create mode 100644 drivers/acpi/arm64/mpam.c create mode 100644 drivers/platform/mpam/Kconfig create mode 100644 drivers/platform/mpam/Makefile create mode 100644 drivers/platform/mpam/mpam_devices.c create mode 100644 drivers/platform/mpam/mpam_internal.h create mode 100644 drivers/platform/mpam/mpam_resctrl.c create mode 100644 fs/resctrl/Kconfig create mode 100644 fs/resctrl/Makefile create mode 100644 fs/resctrl/ctrlmondata.c create mode 100644 fs/resctrl/internal.h create mode 100644 fs/resctrl/monitor.c create mode 100644 fs/resctrl/psuedo_lock.c create mode 100644 fs/resctrl/rdtgroup.c create mode 100644 include/linux/arm_mpam.h create mode 100644 include/linux/resctrl_mpam.h create mode 100644 include/linux/resctrl_types.h -- 2.25.1