• Linus Torvalds's avatar
    Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux · 23221d99
    Linus Torvalds authored
    Pull arm64 updates from Will Deacon:
     "Nothing particularly stands out here, probably because people were
      tied up with spectre/meltdown stuff last time around. Still, the main
      pieces are:
    
       - Rework of our CPU features framework so that we can whitelist CPUs
         that don't require kpti even in a heterogeneous system
    
       - Support for the IDC/DIC architecture extensions, which allow us to
         elide instruction and data cache maintenance when writing out
         instructions
    
       - Removal of the large memory model which resulted in suboptimal
         codegen by the compiler and increased the use of literal pools,
         which could potentially be used as ROP gadgets since they are
         mapped as executable
    
       - Rework of forced signal delivery so that the siginfo_t is
         well-formed and handling of show_unhandled_signals is consolidated
         and made consistent between different fault types
    
       - More siginfo cleanup based on the initial patches from Eric
         Biederman
    
       - Workaround for Cortex-A55 erratum #1024718
    
       - Some small ACPI IORT updates and cleanups from Lorenzo Pieralisi
    
       - Misc cleanups and non-critical fixes"
    
    * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (70 commits)
      arm64: uaccess: Fix omissions from usercopy whitelist
      arm64: fpsimd: Split cpu field out from struct fpsimd_state
      arm64: tlbflush: avoid writing RES0 bits
      arm64: cmpxchg: Include linux/compiler.h in asm/cmpxchg.h
      arm64: move percpu cmpxchg implementation from cmpxchg.h to percpu.h
      arm64: cmpxchg: Include build_bug.h instead of bug.h for BUILD_BUG
      arm64: lse: Include compiler_types.h and export.h for out-of-line LL/SC
      arm64: fpsimd: include <linux/init.h> in fpsimd.h
      drivers/perf: arm_pmu_platform: do not warn about affinity on uniprocessor
      perf: arm_spe: include linux/vmalloc.h for vmap()
      Revert "arm64: Revert L1_CACHE_SHIFT back to 6 (64-byte cache line size)"
      arm64: cpufeature: Avoid warnings due to unused symbols
      arm64: Add work around for Arm Cortex-A55 Erratum 1024718
      arm64: Delay enabling hardware DBM feature
      arm64: Add MIDR encoding for Arm Cortex-A55 and Cortex-A35
      arm64: capabilities: Handle shared entries
      arm64: capabilities: Add support for checks based on a list of MIDRs
      arm64: Add helpers for checking CPU MIDR against a range
      arm64: capabilities: Clean up midr range helpers
      arm64: capabilities: Change scope of VHE to Boot CPU feature
      ...
    23221d99
siginfo.h 9.6 KB