[PATCH v2 0/5] RISC-V: Add Ratified Cache Management Operation ISA Extensions

[Tsukasa OI]

This patchset adds support for three recently ratified RISC-V extensions:

-   Zicbom (Cache-Block Management Instructions)
-   Zicbop (Cache-Block Prefetch hint instructions)
-   Zicboz (Cache-Block Zero Instructions)

`prefetch.[irw]' hint instructions in Zicbop extension require new operand
type which is pseudo S-type immediate with low 5-bits set to zero
(32-byte aligned).  So, Zicbop changes are separate from Zicbom/Zicboz:

    Patch 1:   Zicbom/z/p (common)
    Patch 2/3: Zicbom/z (regular CBO instructions)
    Patch 4/5: Zicbop   (prefetch hint instructions)

cf. <https://github.com/riscv/riscv-CMOs/blob/fc8e97a9531ac9811971a182ae431976b86216e1/specifications/cmobase-v1.0-rc2.pdf>


[PATCH v1]

0/5: <https://sourceware.org/pipermail/binutils/2021-December/118909.html>
1/5: <https://sourceware.org/pipermail/binutils/2021-December/118906.html>
2/5: <https://sourceware.org/pipermail/binutils/2021-December/118908.html>
3/5: <https://sourceware.org/pipermail/binutils/2021-December/118907.html>
4/5: <https://sourceware.org/pipermail/binutils/2021-December/118910.html>
5/5: <https://sourceware.org/pipermail/binutils/2021-December/118911.html>


[DIFF between v1 and v2]

This is functionally the same as v1 but with minor editorial changes.

1.  Minor formatting changes in riscv_ip ('f' operand).
2.  Minor rewording
3.  Add instruction group comments to riscv-opc.h
4.  Rebase against latest master




Tsukasa OI (5):
  RISC-V: Add mininal support for Zicbo[mpz]
  RISC-V: Cache management instructions
  RISC-V: Cache management instruction testcases
  RISC-V: Prefetch hint instructions and operand set
  RISC-V: Prefetch hint instruction testcases

 bfd/elfxx-riscv.c                     |  9 +++++++++
 gas/config/tc-riscv.c                 | 18 ++++++++++++++++++
 gas/testsuite/gas/riscv/zicbom.d      | 15 +++++++++++++++
 gas/testsuite/gas/riscv/zicbom.s      |  7 +++++++
 gas/testsuite/gas/riscv/zicbop-fail.d |  3 +++
 gas/testsuite/gas/riscv/zicbop-fail.l |  4 ++++
 gas/testsuite/gas/riscv/zicbop-fail.s |  4 ++++
 gas/testsuite/gas/riscv/zicbop.d      | 12 ++++++++++++
 gas/testsuite/gas/riscv/zicbop.s      |  4 ++++
 gas/testsuite/gas/riscv/zicboz.d      | 11 +++++++++++
 gas/testsuite/gas/riscv/zicboz.s      |  3 +++
 include/opcode/riscv-opc.h            | 16 ++++++++++++++++
 include/opcode/riscv.h                |  3 +++
 opcodes/riscv-dis.c                   |  4 ++++
 opcodes/riscv-opc.c                   |  9 +++++++++
 15 files changed, 122 insertions(+)
 create mode 100644 gas/testsuite/gas/riscv/zicbom.d
 create mode 100644 gas/testsuite/gas/riscv/zicbom.s
 create mode 100644 gas/testsuite/gas/riscv/zicbop-fail.d
 create mode 100644 gas/testsuite/gas/riscv/zicbop-fail.l
 create mode 100644 gas/testsuite/gas/riscv/zicbop-fail.s
 create mode 100644 gas/testsuite/gas/riscv/zicbop.d
 create mode 100644 gas/testsuite/gas/riscv/zicbop.s
 create mode 100644 gas/testsuite/gas/riscv/zicboz.d
 create mode 100644 gas/testsuite/gas/riscv/zicboz.s


base-commit: 9ed5be5650ba7c315cd7cfacccc9208de2f555df
-- 
2.32.0