• Linus Torvalds's avatar
    Merge tag 'riscv-for-linus-4.15-rc8_cleanups' of… · cf1fb158
    Linus Torvalds authored
    Merge tag 'riscv-for-linus-4.15-rc8_cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux
    
    Pull RISC-V updates from Palmer Dabbelt:
     "This contains what I hope are the last RISC-V changes to go into 4.15.
      I know it's a bit last minute, but I think they're all fairly small
      changes:
    
       - SR_* constants have been renamed to match the latest ISA
         specification.
    
       - Some CONFIG_MMU #ifdef cruft has been removed. We've never
         supported !CONFIG_MMU.
    
       - __NR_riscv_flush_icache is now visible to userspace. We were hoping
         to avoid making this public in order to force userspace to call the
         vDSO entry, but it looks like QEMU's user-mode emulation doesn't
         want to emulate a vDSO. In order to allow glibc to fall back to a
         system call when the vDSO entry doesn't exist we're just
    
       - Our defconfig is no long empty. This is another one that just
         slipped through the cracks. The defconfig isn't perfect, but it's
         at least close to what users will want for the first RISC-V
         development board. Getting closer is kind of splitting hairs here:
         none of the RISC-V specific drivers are in yet, so it's not like
         things will boot out of the box.
    
      The only one that's strictly necessary is the __NR_riscv_flush_icache
      change, as I want that to be part of the public API starting from our
      first kernel so nobody has to worry about it. The others are nice to
      haves, but they seem sane for 4.15 to me"
    
    * tag 'riscv-for-linus-4.15-rc8_cleanups' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/linux:
      riscv: rename SR_* constants to match the spec
      riscv: remove CONFIG_MMU ifdefs
      RISC-V: Make __NR_riscv_flush_icache visible to userspace
      RISC-V: Add a basic defconfig
    cf1fb158
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