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  9. 05 Jan, 2020 4 commits
    • Linus Torvalds's avatar
      Linux 5.5-rc5 · c79f46a2
      Linus Torvalds authored
      c79f46a2
    • Linus Torvalds's avatar
      Merge tag 'riscv/for-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux · 768fc661
      Linus Torvalds authored
      Pull RISC-V fixes from Paul Walmsley:
       "Several fixes for RISC-V:
      
         - Fix function graph trace support
      
         - Prefix the CSR IRQ_* macro names with "RV_", to avoid collisions
           with macros elsewhere in the Linux kernel tree named "IRQ_TIMER"
      
         - Use __pa_symbol() when computing the physical address of a kernel
           symbol, rather than __pa()
      
         - Mark the RISC-V port as supporting GCOV
      
        One DT addition:
      
         - Describe the L2 cache controller in the FU540 DT file
      
        One documentation update:
      
         - Add patch acceptance guideline documentation"
      
      * tag 'riscv/for-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
        Documentation: riscv: add patch acceptance guidelines
        riscv: prefix IRQ_ macro names with an RV_ namespace
        clocksource: riscv: add notrace to riscv_sched_clock
        riscv: ftrace: correct the condition logic in function graph tracer
        riscv: dts: Add DT support for SiFive L2 cache controller
        riscv: gcov: enable gcov for RISC-V
        riscv: mm: use __pa_symbol for kernel symbols
      768fc661
    • Paul Walmsley's avatar
      Documentation: riscv: add patch acceptance guidelines · 0e194d9d
      Paul Walmsley authored
      Formalize, in kernel documentation, the patch acceptance policy for
      arch/riscv.  In summary, it states that as maintainers, we plan to
      only accept patches for new modules or extensions that have been
      frozen or ratified by the RISC-V Foundation.
      
      We've been following these guidelines for the past few months.  In the
      meantime, we've received quite a bit of feedback that it would be
      helpful to have these guidelines formally documented.
      
      Based on a suggestion from Matthew Wilcox, we also add a link to this
      file to Documentation/process/index.rst, to make this document easier
      to find.  The format of this document has also been changed to align
      to the format outlined in the maintainer entry profiles, in accordance
      with comments from Jon Corbet and Dan Williams.
      Signed-off-by: default avatarPaul Walmsley <paul.walmsley@sifive.com>
      Reviewed-by: default avatarPalmer Dabbelt <palmerdabbelt@google.com>
      Cc: Palmer Dabbelt <palmer@dabbelt.com>
      Cc: Albert Ou <aou@eecs.berkeley.edu>
      Cc: Krste Asanovic <krste@berkeley.edu>
      Cc: Andrew Waterman <waterman@eecs.berkeley.edu>
      Cc: Matthew Wilcox <willy@infradead.org>
      Cc: Dan Williams <dan.j.williams@intel.com>
      Cc: Jonathan Corbet <corbet@lwn.net>
      0e194d9d
    • Paul Walmsley's avatar
      riscv: prefix IRQ_ macro names with an RV_ namespace · 2f3035da
      Paul Walmsley authored
      "IRQ_TIMER", used in the arch/riscv CSR header file, is a sufficiently
      generic macro name that it's used by several source files across the
      Linux code base.  Some of these other files ultimately include the
      arch/riscv CSR include file, causing collisions.  Fix by prefixing the
      RISC-V csr.h IRQ_ macro names with an RV_ prefix.
      
      Fixes: a4c3733d ("riscv: abstract out CSR names for supervisor vs machine mode")
      Reported-by: default avatarOlof Johansson <olof@lixom.net>
      Acked-by: default avatarOlof Johansson <olof@lixom.net>
      Signed-off-by: default avatarPaul Walmsley <paul.walmsley@sifive.com>
      2f3035da