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Fri, 12 Feb 2021 23:50:57 +0800 X-Alimail-AntiSpam: AC=CONTINUE; BC=0.07436318|-1; CH=green; DM=|CONTINUE|false|; DS=CONTINUE|ham_system_inform|0.686433-0.0129696-0.300597; FP=0|0|0|0|0|-1|-1|-1; HT=ay29a033018047207; MF=zhiwei_liu@c-sky.com; NM=1; PH=DS; RN=6; RT=6; SR=0; TI=SMTPD_---.JYHU4.g_1613145056; From: LIU Zhiwei To: qemu-devel@nongnu.org Subject: [PATCH 23/38] target/riscv: 32-bit Multiply 64-bit Add/Subtract Instructions Date: Fri, 12 Feb 2021 23:02:41 +0800 Message-Id: <20210212150256.885-24-zhiwei_liu@c-sky.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210212150256.885-1-zhiwei_liu@c-sky.com> References: <20210212150256.885-1-zhiwei_liu@c-sky.com> Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: none client-ip=121.197.200.217; envelope-from=zhiwei_liu@c-sky.com; helo=smtp2200-217.mail.aliyun.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_NONE=0.001, UNPARSEABLE_RELAY=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: richard.henderson@linaro.org, LIU Zhiwei , qemu-riscv@nongnu.org, palmer@dabbelt.com, alistair23@gmail.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Signed-off-by: LIU Zhiwei --- target/riscv/helper.h | 9 ++ target/riscv/insn32.decode | 9 ++ target/riscv/insn_trans/trans_rvp.c.inc | 63 ++++++++++ target/riscv/packed_helper.c | 155 ++++++++++++++++++++++++ 4 files changed, 236 insertions(+) diff --git a/target/riscv/helper.h b/target/riscv/helper.h index cce4c8cbcc..4d89417287 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -1338,3 +1338,12 @@ DEF_HELPER_3(rsub64, i64, env, i64, i64) DEF_HELPER_3(ursub64, i64, env, i64, i64) DEF_HELPER_3(ksub64, i64, env, i64, i64) DEF_HELPER_3(uksub64, i64, env, i64, i64) + +DEF_HELPER_4(smar64, i64, env, tl, tl, i64) +DEF_HELPER_4(smsr64, i64, env, tl, tl, i64) +DEF_HELPER_4(umar64, i64, env, tl, tl, i64) +DEF_HELPER_4(umsr64, i64, env, tl, tl, i64) +DEF_HELPER_4(kmar64, i64, env, tl, tl, i64) +DEF_HELPER_4(kmsr64, i64, env, tl, tl, i64) +DEF_HELPER_4(ukmar64, i64, env, tl, tl, i64) +DEF_HELPER_4(ukmsr64, i64, env, tl, tl, i64) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index b52e1c1142..60b8b3617b 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -808,3 +808,12 @@ rsub64 1000001 ..... ..... 001 ..... 1111111 @r ursub64 1010001 ..... ..... 001 ..... 1111111 @r ksub64 1001001 ..... ..... 001 ..... 1111111 @r uksub64 1011001 ..... ..... 001 ..... 1111111 @r + +smar64 1000010 ..... ..... 001 ..... 1111111 @r +smsr64 1000011 ..... ..... 001 ..... 1111111 @r +umar64 1010010 ..... ..... 001 ..... 1111111 @r +umsr64 1010011 ..... ..... 001 ..... 1111111 @r +kmar64 1001010 ..... ..... 001 ..... 1111111 @r +kmsr64 1001011 ..... ..... 001 ..... 1111111 @r +ukmar64 1011010 ..... ..... 001 ..... 1111111 @r +ukmsr64 1011011 ..... ..... 001 ..... 1111111 @r diff --git a/target/riscv/insn_trans/trans_rvp.c.inc b/target/riscv/insn_tr= ans/trans_rvp.c.inc index 94e5e09425..3e62024aac 100644 --- a/target/riscv/insn_trans/trans_rvp.c.inc +++ b/target/riscv/insn_trans/trans_rvp.c.inc @@ -742,3 +742,66 @@ GEN_RVP_R_D64_S64_S64_OOL(rsub64); GEN_RVP_R_D64_S64_S64_OOL(ursub64); GEN_RVP_R_D64_S64_S64_OOL(ksub64); GEN_RVP_R_D64_S64_S64_OOL(uksub64); + +/* 32-bit Multiply with 64-bit Add/Subtract Instructions */ + +/* Function to accumulate 64bit destination register */ +static bool +r_d64_acc_ool(DisasContext *ctx, arg_r *a, + void (* fn)(TCGv_i64, TCGv_ptr, TCGv, TCGv, TCGv_i64)) +{ +#ifdef TARGET_RISCV64 + return r_acc_ool(ctx, a, fn); +#else + TCGv_i32 src1, src2; + TCGv_i64 dst, src3; + TCGv_i32 d0, d1; + + if (!has_ext(ctx, RVP) || !ctx->ext_p64) { + return false; + } + + src1 =3D tcg_temp_new_i32(); + src2 =3D tcg_temp_new_i32(); + src3 =3D tcg_temp_new_i64(); + dst =3D tcg_temp_new_i64(); + d0 =3D tcg_temp_new_i32(); + d1 =3D tcg_temp_new_i32(); + + gen_get_gpr(src1, a->rs1); + gen_get_gpr(src2, a->rs2); + gen_get_gpr(d0, a->rd); + gen_get_gpr(d1, a->rd + 1); + tcg_gen_concat_i32_i64(src3, d0, d1); + + fn(dst, cpu_env, src1, src2, src3); + + tcg_gen_extrl_i64_i32(d0, dst); + tcg_gen_extrh_i64_i32(d1, dst); + gen_set_gpr(a->rd, d0); + gen_set_gpr(a->rd + 1, d1); + + tcg_temp_free_i32(d0); + tcg_temp_free_i32(d1); + tcg_temp_free_i32(src1); + tcg_temp_free_i32(src2); + tcg_temp_free_i64(src3); + tcg_temp_free_i64(dst); + return true; +#endif +} + +#define GEN_RVP_R_D64_ACC_OOL(NAME) \ +static bool trans_##NAME(DisasContext *s, arg_r *a) \ +{ \ + return r_d64_acc_ool(s, a, gen_helper_##NAME); \ +} + +GEN_RVP_R_D64_ACC_OOL(smar64); +GEN_RVP_R_D64_ACC_OOL(smsr64); +GEN_RVP_R_D64_ACC_OOL(umar64); +GEN_RVP_R_D64_ACC_OOL(umsr64); +GEN_RVP_R_D64_ACC_OOL(kmar64); +GEN_RVP_R_D64_ACC_OOL(kmsr64); +GEN_RVP_R_D64_ACC_OOL(ukmar64); +GEN_RVP_R_D64_ACC_OOL(ukmsr64); diff --git a/target/riscv/packed_helper.c b/target/riscv/packed_helper.c index 0629c5178b..3cbe9e51cc 100644 --- a/target/riscv/packed_helper.c +++ b/target/riscv/packed_helper.c @@ -2229,3 +2229,158 @@ static inline void do_uksub64(CPURISCVState *env, v= oid *vd, void *va, } =20 RVPR64_64_64(uksub64, 1, 8); + +/* 32-bit Multiply with 64-bit Add/Subtract Instructions */ +static inline uint64_t +rvpr64_acc(CPURISCVState *env, target_ulong a, + target_ulong b, uint64_t c, + uint8_t step, uint8_t size, PackedFn4i *fn) +{ + int i, passes =3D sizeof(target_ulong) / size; + uint64_t result =3D 0; + + for (i =3D 0; i < passes; i +=3D step) { + fn(env, &result, &a, &b, &c, i); + } + return result; +} + +#define RVPR64_ACC(NAME, STEP, SIZE) \ +uint64_t HELPER(NAME)(CPURISCVState *env, target_ulong a, \ + target_ulong b, uint64_t c) \ +{ \ + return rvpr64_acc(env, a, b, c, STEP, SIZE, (PackedFn4i *)do_##NAME);\ +} + +static inline void do_smar64(CPURISCVState *env, void *vd, void *va, + void *vb, void *vc, uint8_t i) +{ + int32_t *a =3D va, *b =3D vb; + int64_t *d =3D vd, *c =3D vc; + if (i =3D=3D 0) { + *d =3D *c; + } + *d +=3D (int64_t)a[H4(i)] * b[H4(i)]; +} + +RVPR64_ACC(smar64, 1, 4); + +static inline void do_smsr64(CPURISCVState *env, void *vd, void *va, + void *vb, void *vc, uint8_t i) +{ + int32_t *a =3D va, *b =3D vb; + int64_t *d =3D vd, *c =3D vc; + if (i =3D=3D 0) { + *d =3D *c; + } + *d -=3D (int64_t)a[H4(i)] * b[H4(i)]; +} + +RVPR64_ACC(smsr64, 1, 4); + +static inline void do_umar64(CPURISCVState *env, void *vd, void *va, + void *vb, void *vc, uint8_t i) +{ + uint32_t *a =3D va, *b =3D vb; + uint64_t *d =3D vd, *c =3D vc; + if (i =3D=3D 0) { + *d =3D *c; + } + *d +=3D (uint64_t)a[H4(i)] * b[H4(i)]; +} + +RVPR64_ACC(umar64, 1, 4); + +static inline void do_umsr64(CPURISCVState *env, void *vd, void *va, + void *vb, void *vc, uint8_t i) +{ + uint32_t *a =3D va, *b =3D vb; + uint64_t *d =3D vd, *c =3D vc; + if (i =3D=3D 0) { + *d =3D *c; + } + *d -=3D (uint64_t)a[H4(i)] * b[H4(i)]; +} + +RVPR64_ACC(umsr64, 1, 4); + +static inline void do_kmar64(CPURISCVState *env, void *vd, void *va, + void *vb, void *vc, uint8_t i) +{ + int32_t *a =3D va, *b =3D vb; + int64_t *d =3D vd, *c =3D vc; + int64_t m0 =3D (int64_t)a[H4(i)] * b[H4(i)]; +#ifdef TARGET_RISCV64 + int64_t m1 =3D (int64_t)a[H4(i + 1)] * b[H4(i + 1)]; + if (a[H4(i)] =3D=3D INT32_MIN && b[H4(i)] =3D=3D INT32_MIN && + a[H4(i + 1)] =3D=3D INT32_MIN && b[H4(i + 1)] =3D=3D INT32_MIN) { + if (*c >=3D 0) { + *d =3D INT64_MAX; + env->vxsat =3D 1; + } else { + *d =3D sadd64(env, 0, *c + m0, m1); + } + } else { + *d =3D sadd64(env, 0, *c, m0 + m1); + } +#else + *d =3D sadd64(env, 0, *c, m0); +#endif +} + +RVPR64_ACC(kmar64, 1, sizeof(target_ulong)); + +static inline void do_kmsr64(CPURISCVState *env, void *vd, void *va, + void *vb, void *vc, uint8_t i) +{ + int32_t *a =3D va, *b =3D vb; + int64_t *d =3D vd, *c =3D vc; + + int64_t m0 =3D (int64_t)a[H4(i)] * b[H4(i)]; +#ifdef TARGET_RISCV64 + int64_t m1 =3D (int64_t)a[H4(i + 1)] * b[H4(i + 1)]; + if (a[H4(i)] =3D=3D INT32_MIN && b[H4(i)] =3D=3D INT32_MIN && + a[H4(i + 1)] =3D=3D INT32_MIN && b[H4(i + 1)] =3D=3D INT32_MIN) { + if (*c <=3D 0) { + *d =3D INT64_MIN; + env->vxsat =3D 1; + } else { + *d =3D ssub64(env, 0, *c - m0, m1); + } + } else { + *d =3D ssub64(env, 0, *c, m0 + m1); + } +#else + *d =3D ssub64(env, 0, *c, m0); +#endif +} + +RVPR64_ACC(kmsr64, 1, sizeof(target_ulong)); + +static inline void do_ukmar64(CPURISCVState *env, void *vd, void *va, + void *vb, void *vc, uint8_t i) +{ + uint32_t *a =3D va, *b =3D vb; + uint64_t *d =3D vd, *c =3D vc; + + if (i =3D=3D 0) { + *d =3D *c; + } + *d =3D saddu64(env, 0, *d, (uint64_t)a[H4(i)] * b[H4(i)]); +} + +RVPR64_ACC(ukmar64, 1, 4); + +static inline void do_ukmsr64(CPURISCVState *env, void *vd, void *va, + void *vb, void *vc, uint8_t i) +{ + uint32_t *a =3D va, *b =3D vb; + uint64_t *d =3D vd, *c =3D vc; + + if (i =3D=3D 0) { + *d =3D *c; + } + *d =3D ssubu64(env, 0, *d, (uint64_t)a[i] * b[i]); +} + +RVPR64_ACC(ukmsr64, 1, 4); --=20 2.17.1