Re: [PATCH v2 00/17] Add RISC-V RVV Zve32f and Zve64f extensions

[Alistair Francis]

On Tue, Jan 18, 2022 at 11:50 AM <frank.chang@sifive.com> wrote:
>
> 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-v2
>
> 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.
>
> Here's the inclusion diagram for the six standard vector extensions
> quoted from Nick Knight <nick.knight@sifive.com>:
>
>       V
>       |
>     Zve64d
>       |
>     Zve64f
>    /      \
> Zve64x   Zve32f
>    \      /
>     Zve32x
>
> Changelog:
>
> v2:
>   * Replace hardcoded TARGET_RISCV32 macro with get_xl().
>
> 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

Thanks!

Applied to riscv-to-apply.next

Alistair

>
>  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 | 219 ++++++++++++++++++++----
>  target/riscv/translate.c                |   4 +
>  6 files changed, 205 insertions(+), 37 deletions(-)
>
> --
> 2.31.1
>
>