Hi Zhiwei,

On Tue, May 28, 2024 at 8:57 AM LIU Zhiwei <zhiwei_...@linux.alibaba.com> wrote:
>
> Hi Alexandre,
>
> I have sent the patch set about Zabha before last week.

Sorry I did not check!

>
> https://lore.kernel.org/all/fed99165-58da-458c-b68f-a9717fc15...@linux.alibaba.com/T/
>
> Welcome to review it and give comments.

Sure, I'll do that, your patchset seems more complete than ours.

Thanks,

Alex

>
> Thanks,
> Zhiwei
>
> On 2024/5/28 13:45, Alexandre Ghiti wrote:
> > From: Gianluca Guida <gianl...@rivosinc.com>
> >
> > Add Zabha implementation.
> >
> > Signed-off-by: Gianluca Guida <gianl...@rivosinc.com>
> > Signed-off-by: Alexandre Ghiti <alexgh...@rivosinc.com>
> > ---
> >   target/riscv/cpu.c                          |   2 +
> >   target/riscv/cpu_cfg.h                      |   1 +
> >   target/riscv/insn32.decode                  |  22 +++
> >   target/riscv/insn_trans/trans_rvzabha.c.inc | 149 ++++++++++++++++++++
> >   target/riscv/tcg/tcg-cpu.c                  |   5 +
> >   target/riscv/translate.c                    |   1 +
> >   6 files changed, 180 insertions(+)
> >   create mode 100644 target/riscv/insn_trans/trans_rvzabha.c.inc
> >
> > diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
> > index 70d1a527a1..b01f82002b 100644
> > --- a/target/riscv/cpu.c
> > +++ b/target/riscv/cpu.c
> > @@ -116,6 +116,7 @@ const RISCVIsaExtData isa_edata_arr[] = {
> >       ISA_EXT_DATA_ENTRY(zmmul, PRIV_VERSION_1_12_0, ext_zmmul),
> >       ISA_EXT_DATA_ENTRY(za64rs, PRIV_VERSION_1_12_0, has_priv_1_11),
> >       ISA_EXT_DATA_ENTRY(zaamo, PRIV_VERSION_1_12_0, ext_zaamo),
> > +    ISA_EXT_DATA_ENTRY(zabha, PRIV_VERSION_1_12_0, ext_zabha),
> >       ISA_EXT_DATA_ENTRY(zacas, PRIV_VERSION_1_12_0, ext_zacas),
> >       ISA_EXT_DATA_ENTRY(zalrsc, PRIV_VERSION_1_12_0, ext_zalrsc),
> >       ISA_EXT_DATA_ENTRY(zawrs, PRIV_VERSION_1_12_0, ext_zawrs),
> > @@ -1464,6 +1465,7 @@ const RISCVCPUMultiExtConfig riscv_cpu_extensions[] = 
> > {
> >       MULTI_EXT_CFG_BOOL("zicsr", ext_zicsr, true),
> >       MULTI_EXT_CFG_BOOL("zihintntl", ext_zihintntl, true),
> >       MULTI_EXT_CFG_BOOL("zihintpause", ext_zihintpause, true),
> > +    MULTI_EXT_CFG_BOOL("zabha", ext_zabha, false),
> >       MULTI_EXT_CFG_BOOL("zacas", ext_zacas, false),
> >       MULTI_EXT_CFG_BOOL("zaamo", ext_zaamo, false),
> >       MULTI_EXT_CFG_BOOL("zalrsc", ext_zalrsc, false),
> > diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h
> > index d36c416ef0..7f614da4e2 100644
> > --- a/target/riscv/cpu_cfg.h
> > +++ b/target/riscv/cpu_cfg.h
> > @@ -81,6 +81,7 @@ struct RISCVCPUConfig {
> >       bool ext_svvptc;
> >       bool ext_zdinx;
> >       bool ext_zaamo;
> > +    bool ext_zabha;
> >       bool ext_zacas;
> >       bool ext_zalrsc;
> >       bool ext_zawrs;
> > diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
> > index f22df04cfd..6d7726120f 100644
> > --- a/target/riscv/insn32.decode
> > +++ b/target/riscv/insn32.decode
> > @@ -1010,3 +1010,25 @@ amocas_w    00101 . . ..... ..... 010 ..... 0101111 
> > @atom_st
> >   amocas_d    00101 . . ..... ..... 011 ..... 0101111 @atom_st
> >   # *** RV64 Zacas Standard Extension ***
> >   amocas_q    00101 . . ..... ..... 100 ..... 0101111 @atom_st
> > +
> > +# *** Zabha Standard Extension ***
> > +amoswap_b  00001 . . ..... ..... 000 ..... 0101111 @atom_st
> > +amoadd_b   00000 . . ..... ..... 000 ..... 0101111 @atom_st
> > +amoxor_b   00100 . . ..... ..... 000 ..... 0101111 @atom_st
> > +amoand_b   01100 . . ..... ..... 000 ..... 0101111 @atom_st
> > +amoor_b    01000 . . ..... ..... 000 ..... 0101111 @atom_st
> > +amomin_b   10000 . . ..... ..... 000 ..... 0101111 @atom_st
> > +amomax_b   10100 . . ..... ..... 000 ..... 0101111 @atom_st
> > +amominu_b  11000 . . ..... ..... 000 ..... 0101111 @atom_st
> > +amomaxu_b  11100 . . ..... ..... 000 ..... 0101111 @atom_st
> > +amocas_b   00101 . . ..... ..... 000 ..... 0101111 @atom_st
> > +amoswap_h  00001 . . ..... ..... 001 ..... 0101111 @atom_st
> > +amoadd_h   00000 . . ..... ..... 001 ..... 0101111 @atom_st
> > +amoxor_h   00100 . . ..... ..... 001 ..... 0101111 @atom_st
> > +amoand_h   01100 . . ..... ..... 001 ..... 0101111 @atom_st
> > +amoor_h    01000 . . ..... ..... 001 ..... 0101111 @atom_st
> > +amomin_h   10000 . . ..... ..... 001 ..... 0101111 @atom_st
> > +amomax_h   10100 . . ..... ..... 001 ..... 0101111 @atom_st
> > +amominu_h  11000 . . ..... ..... 001 ..... 0101111 @atom_st
> > +amomaxu_h  11100 . . ..... ..... 001 ..... 0101111 @atom_st
> > +amocas_h   00101 . . ..... ..... 001 ..... 0101111 @atom_st
> > diff --git a/target/riscv/insn_trans/trans_rvzabha.c.inc 
> > b/target/riscv/insn_trans/trans_rvzabha.c.inc
> > new file mode 100644
> > index 0000000000..74f43bb95a
> > --- /dev/null
> > +++ b/target/riscv/insn_trans/trans_rvzabha.c.inc
> > @@ -0,0 +1,149 @@
> > +/*
> > + * RISC-V translation routines for the Zabha Standard Extension.
> > + *
> > + * Copyright (c) 2023 Rivos Inc.
> > + *
> > + * This program is free software; you can redistribute it and/or modify it
> > + * under the terms and conditions of the GNU General Public License,
> > + * version 2 or later, as published by the Free Software Foundation.
> > + *
> > + * This program is distributed in the hope it will be useful, but WITHOUT
> > + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
> > + * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License 
> > for
> > + * more details.
> > + *
> > + * You should have received a copy of the GNU General Public License along 
> > with
> > + * this program.  If not, see <http://www.gnu.org/licenses/>.
> > + */
> > +
> > +#define REQUIRE_ZABHA(ctx) do {                 \
> > +        if (!ctx->cfg_ptr->ext_zabha) {         \
> > +            return false;                       \
> > +        }                                       \
> > +    } while (0)
> > +
> > +#define REQUIRE_ZABHA_AND_ZACAS(ctx) do {                               \
> > +        if (!ctx->cfg_ptr->ext_zabha || !ctx->cfg_ptr->ext_zacas) {     \
> > +            return false;                                               \
> > +        }                                                               \
> > +    } while (0)
> > +
> > +static bool trans_amoswap_b(DisasContext *ctx, arg_amoswap_b *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_xchg_tl, MO_SB);
> > +}
> > +
> > +static bool trans_amoswap_h(DisasContext *ctx, arg_amoswap_h *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_xchg_tl, (MO_ALIGN | MO_TESW));
> > +}
> > +
> > +static bool trans_amoadd_b(DisasContext *ctx, arg_amoadd_b *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_add_tl, MO_SB);
> > +}
> > +
> > +static bool trans_amoadd_h(DisasContext *ctx, arg_amoadd_h *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_add_tl, (MO_ALIGN | 
> > MO_TESW));
> > +}
> > +
> > +static bool trans_amoxor_b(DisasContext *ctx, arg_amoxor_b *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_xor_tl, MO_SB);
> > +}
> > +
> > +static bool trans_amoxor_h(DisasContext *ctx, arg_amoxor_h *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_xor_tl, (MO_ALIGN | 
> > MO_TESW));
> > +}
> > +
> > +static bool trans_amoand_b(DisasContext *ctx, arg_amoand_b *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_and_tl, MO_SB);
> > +}
> > +
> > +static bool trans_amoand_h(DisasContext *ctx, arg_amoand_h *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_and_tl, (MO_ALIGN | 
> > MO_TESW));
> > +}
> > +
> > +static bool trans_amoor_b(DisasContext *ctx, arg_amoor_b *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_or_tl, MO_SB);
> > +}
> > +
> > +static bool trans_amoor_h(DisasContext *ctx, arg_amoor_h *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_or_tl, (MO_ALIGN | 
> > MO_TESW));
> > +}
> > +
> > +static bool trans_amomin_b(DisasContext *ctx, arg_amomin_b *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_smin_tl, MO_SB);
> > +}
> > +
> > +static bool trans_amomin_h(DisasContext *ctx, arg_amomin_h *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_smin_tl, (MO_ALIGN | 
> > MO_TESW));
> > +}
> > +
> > +static bool trans_amomax_b(DisasContext *ctx, arg_amomax_b *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_smax_tl, MO_SB);
> > +}
> > +
> > +static bool trans_amomax_h(DisasContext *ctx, arg_amomax_h *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_smax_tl, (MO_ALIGN | 
> > MO_TESW));
> > +}
> > +
> > +static bool trans_amominu_b(DisasContext *ctx, arg_amominu_b *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_umin_tl, MO_SB);
> > +}
> > +
> > +static bool trans_amominu_h(DisasContext *ctx, arg_amominu_h *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_umin_tl, (MO_ALIGN | 
> > MO_TESW));
> > +}
> > +
> > +static bool trans_amomaxu_b(DisasContext *ctx, arg_amomaxu_b *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_umax_tl, MO_SB);
> > +}
> > +
> > +static bool trans_amomaxu_h(DisasContext *ctx, arg_amomaxu_h *a)
> > +{
> > +    REQUIRE_ZABHA(ctx);
> > +    return gen_amo(ctx, a, &tcg_gen_atomic_fetch_umax_tl, (MO_ALIGN | 
> > MO_TESW));
> > +}
> > +
> > +static bool trans_amocas_b(DisasContext *ctx, arg_amocas_b *a)
> > +{
> > +    REQUIRE_ZABHA_AND_ZACAS(ctx);
> > +    return gen_cmpxchg(ctx, a, MO_SB);
> > +}
> > +
> > +static bool trans_amocas_h(DisasContext *ctx, arg_amocas_h *a)
> > +{
> > +    REQUIRE_ZABHA_AND_ZACAS(ctx);
> > +    return gen_cmpxchg(ctx, a, (MO_ALIGN | MO_TESW));
> > +}
> > diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
> > index b5b95e052d..25a57bac0f 100644
> > --- a/target/riscv/tcg/tcg-cpu.c
> > +++ b/target/riscv/tcg/tcg-cpu.c
> > @@ -456,6 +456,11 @@ void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, 
> > Error **errp)
> >           return;
> >       }
> >
> > +    if ((cpu->cfg.ext_zabha) && !riscv_has_ext(env, RVA)) {
> > +        error_setg(errp, "Zabha extension requires A extension");
> > +        return;
> > +    }
> > +
> >       if ((cpu->cfg.ext_zawrs) && !riscv_has_ext(env, RVA)) {
> >           error_setg(errp, "Zawrs extension requires A extension");
> >           return;
> > diff --git a/target/riscv/translate.c b/target/riscv/translate.c
> > index 9ff09ebdb6..1e128711db 100644
> > --- a/target/riscv/translate.c
> > +++ b/target/riscv/translate.c
> > @@ -1097,6 +1097,7 @@ static uint32_t opcode_at(DisasContextBase *dcbase, 
> > target_ulong pc)
> >   #include "insn_trans/trans_rvb.c.inc"
> >   #include "insn_trans/trans_rvzicond.c.inc"
> >   #include "insn_trans/trans_rvzacas.c.inc"
> > +#include "insn_trans/trans_rvzabha.c.inc"
> >   #include "insn_trans/trans_rvzawrs.c.inc"
> >   #include "insn_trans/trans_rvzicbo.c.inc"
> >   #include "insn_trans/trans_rvzfa.c.inc"

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