[PATCH 00/17] Add RISC-V RVV Zve32f and Zve64f extensions

[frank . chang]

From: Frank Chang <frank.chang@sifive.com>

In RVV v1.0 spec, several Zve* vector extensions for embedded processors
are defined in Chapter 18.2:
https://github.com/riscv/riscv-v-spec/blob/v1.0/v-spec.adoc#zve-vector-extensions-for-embedded-processors

This patchset implements Zve32f and Zve64f extensions.

The port is available at:
https://github.com/sifive/qemu/tree/rvv-zve32f-zve64f-upstream

Zve32f can be enabled with -cpu option: Zve32f=true and
Zve64f can be enabled with -cpu option: Zve64f=true.
V is not required to be enabled explicitly.

Quote from the inclusion diagram for the six standard vector extensions
from Nick Knight <nick.knight@sifive.com>:

      V
      |
    Zve64d
      |
    Zve64f
   /      \
Zve64x   Zve32f
   \      /
    Zve32x

Note: This patchset depends on other patchsets listed in Based-on
      section below so it is not able to be built unless those patchsets
      are applied.

Based-on: <20211229021250.29804-1-frank.chang@sifive.com>

Frank Chang (17):
  target/riscv: rvv-1.0: Add Zve64f extension into RISC-V
  target/riscv: rvv-1.0: Add Zve64f support for configuration insns
  target/riscv: rvv-1.0: Add Zve64f support for load and store insns
  target/riscv: rvv-1.0: Add Zve64f support for vmulh variant insns
  target/riscv: rvv-1.0: Add Zve64f support for vsmul.vv and vsmul.vx
    insns
  target/riscv: rvv-1.0: Add Zve64f support for scalar fp insns
  target/riscv: rvv-1.0: Add Zve64f support for single-width fp
    reduction insns
  target/riscv: rvv-1.0: Add Zve64f support for widening type-convert
    insns
  target/riscv: rvv-1.0: Add Zve64f support for narrowing type-convert
    insns
  target/riscv: rvv-1.0: Allow Zve64f extension to be turned on
  target/riscv: rvv-1.0: Add Zve32f extension into RISC-V
  target/riscv: rvv-1.0: Add Zve32f support for configuration insns
  target/riscv: rvv-1.0: Add Zve32f support for scalar fp insns
  target/riscv: rvv-1.0: Add Zve32f support for single-width fp
    reduction insns
  target/riscv: rvv-1.0: Add Zve32f support for widening type-convert
    insns
  target/riscv: rvv-1.0: Add Zve32f support for narrowing type-convert
    insns
  target/riscv: rvv-1.0: Allow Zve32f extension to be turned on

 target/riscv/cpu.c                      |   6 +
 target/riscv/cpu.h                      |   2 +
 target/riscv/cpu_helper.c               |   5 +-
 target/riscv/csr.c                      |   6 +-
 target/riscv/insn_trans/trans_rvv.c.inc | 217 ++++++++++++++++++++----
 target/riscv/translate.c                |   4 +
 6 files changed, 203 insertions(+), 37 deletions(-)

--
2.31.1