• Linus Torvalds's avatar
    Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · df45da57
    Linus Torvalds authored
    Pull arm64 updates from Will Deacon:
     "ACPI:
    
       - Improve error reporting when failing to manage SDEI on AGDI device
         removal
    
      Assembly routines:
    
       - Improve register constraints so that the compiler can make use of
         the zero register instead of moving an immediate #0 into a GPR
    
       - Allow the compiler to allocate the registers used for CAS
         instructions
    
      CPU features and system registers:
    
       - Cleanups to the way in which CPU features are identified from the
         ID register fields
    
       - Extend system register definition generation to handle Enum types
         when defining shared register fields
    
       - Generate definitions for new _EL2 registers and add new fields for
         ID_AA64PFR1_EL1
    
       - Allow SVE to be disabled separately from SME on the kernel
         command-line
    
      Tracing:
    
       - Support for "direct calls" in ftrace, which enables BPF tracing for
         arm64
    
      Kdump:
    
       - Don't bother unmapping the crashkernel from the linear mapping,
         which then allows us to use huge (block) mappings and reduce TLB
         pressure when a crashkernel is loaded.
    
      Memory management:
    
       - Try again to remove data cache invalidation from the coherent DMA
         allocation path
    
       - Simplify the fixmap code by mapping at page granularity
    
       - Allow the kfence pool to be allocated early, preventing the rest of
         the linear mapping from being forced to page granularity
    
      Perf and PMU:
    
       - Move CPU PMU code out to drivers/perf/ where it can be reused by
         the 32-bit ARM architecture when running on ARMv8 CPUs
    
       - Fix race between CPU PMU probing and pKVM host de-privilege
    
       - Add support for Apple M2 CPU PMU
    
       - Adjust the generic PERF_COUNT_HW_BRANCH_INSTRUCTIONS event
         dynamically, depending on what the CPU actually supports
    
       - Minor fixes and cleanups to system PMU drivers
    
      Stack tracing:
    
       - Use the XPACLRI instruction to strip PAC from pointers, rather than
         rolling our own function in C
    
       - Remove redundant PAC removal for toolchains that handle this in
         their builtins
    
       - Make backtracing more resilient in the face of instrumentation
    
      Miscellaneous:
    
       - Fix single-step with KGDB
    
       - Remove harmless warning when 'nokaslr' is passed on the kernel
         command-line
    
       - Minor fixes and cleanups across the board"
    
    * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (72 commits)
      KVM: arm64: Ensure CPU PMU probes before pKVM host de-privilege
      arm64: kexec: include reboot.h
      arm64: delete dead code in this_cpu_set_vectors()
      arm64/cpufeature: Use helper macro to specify ID register for capabilites
      drivers/perf: hisi: add NULL check for name
      drivers/perf: hisi: Remove redundant initialized of pmu->name
      arm64/cpufeature: Consistently use symbolic constants for min_field_value
      arm64/cpufeature: Pull out helper for CPUID register definitions
      arm64/sysreg: Convert HFGITR_EL2 to automatic generation
      ACPI: AGDI: Improve error reporting for problems during .remove()
      arm64: kernel: Fix kernel warning when nokaslr is passed to commandline
      perf/arm-cmn: Fix port detection for CMN-700
      arm64: kgdb: Set PSTATE.SS to 1 to re-enable single-step
      arm64: move PAC masks to <asm/pointer_auth.h>
      arm64: use XPACLRI to strip PAC
      arm64: avoid redundant PAC stripping in __builtin_return_address()
      arm64/sme: Fix some comments of ARM SME
      arm64/signal: Alloc tpidr2 sigframe after checking system_supports_tpidr2()
      arm64/signal: Use system_supports_tpidr2() to check TPIDR2
      arm64/idreg: Don't disable SME when disabling SVE
      ...
    df45da57
Kconfig 80.1 KB