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[114.34.229.221]) by smtp.gmail.com with ESMTPSA id f18sm6567309pgv.84.2020.08.06.03.47.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 06 Aug 2020 03:47:33 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC v3 06/71] target/riscv: rvv-1.0: add translation-time vector context status Date: Thu, 6 Aug 2020 18:46:03 +0800 Message-Id: <20200806104709.13235-7-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200806104709.13235-1-frank.chang@sifive.com> References: <20200806104709.13235-1-frank.chang@sifive.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::102e; envelope-from=frank.chang@sifive.com; helo=mail-pj1-x102e.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=unavailable 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: Sagar Karandikar , Frank Chang , Bastian Koppelmann , Alistair Francis , Palmer Dabbelt , LIU Zhiwei Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: LIU Zhiwei Signed-off-by: LIU Zhiwei Signed-off-by: Frank Chang Reviewed-by: Richard Henderson --- target/riscv/insn_trans/trans_rvv.inc.c | 69 ++++++++++++++++++++----- target/riscv/translate.c | 33 ++++++++++++ 2 files changed, 90 insertions(+), 12 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvv.inc.c b/target/riscv/insn_trans/trans_rvv.inc.c index 887c6b88831..1b021603c1c 100644 --- a/target/riscv/insn_trans/trans_rvv.inc.c +++ b/target/riscv/insn_trans/trans_rvv.inc.c @@ -48,6 +48,7 @@ static bool trans_vsetvl(DisasContext *ctx, arg_vsetvl *a) tcg_temp_free(s1); tcg_temp_free(s2); tcg_temp_free(dst); + mark_vs_dirty(ctx); return true; } @@ -78,6 +79,7 @@ static bool trans_vsetvli(DisasContext *ctx, arg_vsetvli *a) tcg_temp_free(s1); tcg_temp_free(s2); tcg_temp_free(dst); + mark_vs_dirty(ctx); return true; } @@ -163,7 +165,8 @@ typedef void gen_helper_ldst_us(TCGv_ptr, TCGv_ptr, TCGv, TCGv_env, TCGv_i32); static bool ldst_us_trans(uint32_t vd, uint32_t rs1, uint32_t data, - gen_helper_ldst_us *fn, DisasContext *s) + gen_helper_ldst_us *fn, DisasContext *s, + bool is_store) { TCGv_ptr dest, mask; TCGv base; @@ -195,6 +198,9 @@ static bool ldst_us_trans(uint32_t vd, uint32_t rs1, uint32_t data, tcg_temp_free_ptr(mask); tcg_temp_free(base); tcg_temp_free_i32(desc); + if (!is_store) { + mark_vs_dirty(s); + } gen_set_label(over); return true; } @@ -245,7 +251,7 @@ static bool ld_us_op(DisasContext *s, arg_r2nfvm *a, uint8_t seq) data = FIELD_DP32(data, VDATA, VM, a->vm); data = FIELD_DP32(data, VDATA, LMUL, s->lmul); data = FIELD_DP32(data, VDATA, NF, a->nf); - return ldst_us_trans(a->rd, a->rs1, data, fn, s); + return ldst_us_trans(a->rd, a->rs1, data, fn, s, false); } static bool ld_us_check(DisasContext *s, arg_r2nfvm* a) @@ -298,7 +304,7 @@ static bool st_us_op(DisasContext *s, arg_r2nfvm *a, uint8_t seq) data = FIELD_DP32(data, VDATA, VM, a->vm); data = FIELD_DP32(data, VDATA, LMUL, s->lmul); data = FIELD_DP32(data, VDATA, NF, a->nf); - return ldst_us_trans(a->rd, a->rs1, data, fn, s); + return ldst_us_trans(a->rd, a->rs1, data, fn, s, true); } static bool st_us_check(DisasContext *s, arg_r2nfvm* a) @@ -321,7 +327,7 @@ typedef void gen_helper_ldst_stride(TCGv_ptr, TCGv_ptr, TCGv, static bool ldst_stride_trans(uint32_t vd, uint32_t rs1, uint32_t rs2, uint32_t data, gen_helper_ldst_stride *fn, - DisasContext *s) + DisasContext *s, bool is_store) { TCGv_ptr dest, mask; TCGv base, stride; @@ -348,6 +354,9 @@ static bool ldst_stride_trans(uint32_t vd, uint32_t rs1, uint32_t rs2, tcg_temp_free(base); tcg_temp_free(stride); tcg_temp_free_i32(desc); + if (!is_store) { + mark_vs_dirty(s); + } gen_set_label(over); return true; } @@ -382,7 +391,7 @@ static bool ld_stride_op(DisasContext *s, arg_rnfvm *a, uint8_t seq) data = FIELD_DP32(data, VDATA, VM, a->vm); data = FIELD_DP32(data, VDATA, LMUL, s->lmul); data = FIELD_DP32(data, VDATA, NF, a->nf); - return ldst_stride_trans(a->rd, a->rs1, a->rs2, data, fn, s); + return ldst_stride_trans(a->rd, a->rs1, a->rs2, data, fn, s, false); } static bool ld_stride_check(DisasContext *s, arg_rnfvm* a) @@ -426,7 +435,7 @@ static bool st_stride_op(DisasContext *s, arg_rnfvm *a, uint8_t seq) return false; } - return ldst_stride_trans(a->rd, a->rs1, a->rs2, data, fn, s); + return ldst_stride_trans(a->rd, a->rs1, a->rs2, data, fn, s, true); } static bool st_stride_check(DisasContext *s, arg_rnfvm* a) @@ -449,7 +458,7 @@ typedef void gen_helper_ldst_index(TCGv_ptr, TCGv_ptr, TCGv, static bool ldst_index_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, uint32_t data, gen_helper_ldst_index *fn, - DisasContext *s) + DisasContext *s, bool is_store) { TCGv_ptr dest, mask, index; TCGv base; @@ -476,6 +485,9 @@ static bool ldst_index_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, tcg_temp_free_ptr(index); tcg_temp_free(base); tcg_temp_free_i32(desc); + if (!is_store) { + mark_vs_dirty(s); + } gen_set_label(over); return true; } @@ -510,7 +522,7 @@ static bool ld_index_op(DisasContext *s, arg_rnfvm *a, uint8_t seq) data = FIELD_DP32(data, VDATA, VM, a->vm); data = FIELD_DP32(data, VDATA, LMUL, s->lmul); data = FIELD_DP32(data, VDATA, NF, a->nf); - return ldst_index_trans(a->rd, a->rs1, a->rs2, data, fn, s); + return ldst_index_trans(a->rd, a->rs1, a->rs2, data, fn, s, false); } /* @@ -562,7 +574,7 @@ static bool st_index_op(DisasContext *s, arg_rnfvm *a, uint8_t seq) data = FIELD_DP32(data, VDATA, VM, a->vm); data = FIELD_DP32(data, VDATA, LMUL, s->lmul); data = FIELD_DP32(data, VDATA, NF, a->nf); - return ldst_index_trans(a->rd, a->rs1, a->rs2, data, fn, s); + return ldst_index_trans(a->rd, a->rs1, a->rs2, data, fn, s, true); } static bool st_index_check(DisasContext *s, arg_rnfvm* a) @@ -606,6 +618,7 @@ static bool ldff_trans(uint32_t vd, uint32_t rs1, uint32_t data, tcg_temp_free_ptr(mask); tcg_temp_free(base); tcg_temp_free_i32(desc); + mark_vs_dirty(s); gen_set_label(over); return true; } @@ -685,6 +698,7 @@ static bool amo_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, tcg_temp_free_ptr(index); tcg_temp_free(base); tcg_temp_free_i32(desc); + mark_vs_dirty(s); gen_set_label(over); return true; } @@ -832,6 +846,7 @@ do_opivv_gvec(DisasContext *s, arg_rmrr *a, GVecGen3Fn *gvec_fn, vreg_ofs(s, a->rs1), vreg_ofs(s, a->rs2), cpu_env, 0, s->vlen / 8, data, fn); } + mark_vs_dirty(s); gen_set_label(over); return true; } @@ -886,6 +901,7 @@ static bool opivx_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, uint32_t vm, tcg_temp_free_ptr(src2); tcg_temp_free(src1); tcg_temp_free_i32(desc); + mark_vs_dirty(s); gen_set_label(over); return true; } @@ -920,6 +936,7 @@ do_opivx_gvec(DisasContext *s, arg_rmrr *a, GVecGen2sFn *gvec_fn, tcg_temp_free_i64(src1); tcg_temp_free(tmp); + mark_vs_dirty(s); return true; } return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s); @@ -1033,6 +1050,7 @@ static bool opivi_trans(uint32_t vd, uint32_t imm, uint32_t vs2, uint32_t vm, tcg_temp_free_ptr(src2); tcg_temp_free(src1); tcg_temp_free_i32(desc); + mark_vs_dirty(s); gen_set_label(over); return true; } @@ -1056,10 +1074,10 @@ do_opivi_gvec(DisasContext *s, arg_rmrr *a, GVecGen2iFn *gvec_fn, gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), sextract64(a->rs1, 0, 5), MAXSZ(s), MAXSZ(s)); } - } else { - return opivi_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s, zx); + mark_vs_dirty(s); + return true; } - return true; + return opivi_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s, zx); } /* OPIVI with GVEC IR */ @@ -1120,6 +1138,7 @@ static bool do_opivv_widen(DisasContext *s, arg_rmrr *a, vreg_ofs(s, a->rs2), cpu_env, 0, s->vlen / 8, data, fn); + mark_vs_dirty(s); gen_set_label(over); return true; } @@ -1207,6 +1226,7 @@ static bool do_opiwv_widen(DisasContext *s, arg_rmrr *a, vreg_ofs(s, a->rs1), vreg_ofs(s, a->rs2), cpu_env, 0, s->vlen / 8, data, fn); + mark_vs_dirty(s); gen_set_label(over); return true; } @@ -1285,6 +1305,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ vreg_ofs(s, a->rs1), \ vreg_ofs(s, a->rs2), cpu_env, 0, \ s->vlen / 8, data, fns[s->sew]); \ + mark_vs_dirty(s); \ gen_set_label(over); \ return true; \ } \ @@ -1416,6 +1437,7 @@ do_opivx_gvec_shift(DisasContext *s, arg_rmrr *a, GVecGen2sFn32 *gvec_fn, tcg_temp_free_i32(src1); tcg_temp_free(tmp); + mark_vs_dirty(s); return true; } return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s); @@ -1474,6 +1496,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ vreg_ofs(s, a->rs1), \ vreg_ofs(s, a->rs2), cpu_env, 0, \ s->vlen / 8, data, fns[s->sew]); \ + mark_vs_dirty(s); \ gen_set_label(over); \ return true; \ } \ @@ -1657,6 +1680,7 @@ static bool trans_vmv_v_v(DisasContext *s, arg_vmv_v_v *a) cpu_env, 0, s->vlen / 8, data, fns[s->sew]); gen_set_label(over); } + mark_vs_dirty(s); return true; } return false; @@ -1699,6 +1723,7 @@ static bool trans_vmv_v_x(DisasContext *s, arg_vmv_v_x *a) } tcg_temp_free(s1); + mark_vs_dirty(s); gen_set_label(over); return true; } @@ -1714,6 +1739,7 @@ static bool trans_vmv_v_i(DisasContext *s, arg_vmv_v_i *a) if (s->vl_eq_vlmax) { tcg_gen_gvec_dup_imm(s->sew, vreg_ofs(s, a->rd), MAXSZ(s), MAXSZ(s), simm); + mark_vs_dirty(s); } else { TCGv_i32 desc; TCGv_i64 s1; @@ -1735,6 +1761,7 @@ static bool trans_vmv_v_i(DisasContext *s, arg_vmv_v_i *a) tcg_temp_free_ptr(dest); tcg_temp_free_i32(desc); tcg_temp_free_i64(s1); + mark_vs_dirty(s); gen_set_label(over); } return true; @@ -1839,6 +1866,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ vreg_ofs(s, a->rs1), \ vreg_ofs(s, a->rs2), cpu_env, 0, \ s->vlen / 8, data, fns[s->sew - 1]); \ + mark_vs_dirty(s); \ gen_set_label(over); \ return true; \ } \ @@ -1874,6 +1902,7 @@ static bool opfvf_trans(uint32_t vd, uint32_t rs1, uint32_t vs2, tcg_temp_free_ptr(mask); tcg_temp_free_ptr(src2); tcg_temp_free_i32(desc); + mark_vs_dirty(s); gen_set_label(over); return true; } @@ -1951,6 +1980,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ vreg_ofs(s, a->rs1), \ vreg_ofs(s, a->rs2), cpu_env, 0, \ s->vlen / 8, data, fns[s->sew - 1]); \ + mark_vs_dirty(s); \ gen_set_label(over); \ return true; \ } \ @@ -2025,6 +2055,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a) \ vreg_ofs(s, a->rs1), \ vreg_ofs(s, a->rs2), cpu_env, 0, \ s->vlen / 8, data, fns[s->sew - 1]); \ + mark_vs_dirty(s); \ gen_set_label(over); \ return true; \ } \ @@ -2139,6 +2170,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ tcg_gen_gvec_3_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0), \ vreg_ofs(s, a->rs2), cpu_env, 0, \ s->vlen / 8, data, fns[s->sew - 1]); \ + mark_vs_dirty(s); \ gen_set_label(over); \ return true; \ } \ @@ -2211,6 +2243,7 @@ static bool trans_vfmv_v_f(DisasContext *s, arg_vfmv_v_f *a) if (s->vl_eq_vlmax) { tcg_gen_gvec_dup_i64(s->sew, vreg_ofs(s, a->rd), MAXSZ(s), MAXSZ(s), cpu_fpr[a->rs1]); + mark_vs_dirty(s); } else { TCGv_ptr dest; TCGv_i32 desc; @@ -2230,6 +2263,7 @@ static bool trans_vfmv_v_f(DisasContext *s, arg_vfmv_v_f *a) tcg_temp_free_ptr(dest); tcg_temp_free_i32(desc); + mark_vs_dirty(s); gen_set_label(over); } return true; @@ -2279,6 +2313,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ tcg_gen_gvec_3_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0), \ vreg_ofs(s, a->rs2), cpu_env, 0, \ s->vlen / 8, data, fns[s->sew - 1]); \ + mark_vs_dirty(s); \ gen_set_label(over); \ return true; \ } \ @@ -2327,6 +2362,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ tcg_gen_gvec_3_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0), \ vreg_ofs(s, a->rs2), cpu_env, 0, \ s->vlen / 8, data, fns[s->sew - 1]); \ + mark_vs_dirty(s); \ gen_set_label(over); \ return true; \ } \ @@ -2389,6 +2425,7 @@ static bool trans_##NAME(DisasContext *s, arg_r *a) \ vreg_ofs(s, a->rs1), \ vreg_ofs(s, a->rs2), cpu_env, 0, \ s->vlen / 8, data, fn); \ + mark_vs_dirty(s); \ gen_set_label(over); \ return true; \ } \ @@ -2486,6 +2523,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ tcg_gen_gvec_3_ptr(vreg_ofs(s, a->rd), \ vreg_ofs(s, 0), vreg_ofs(s, a->rs2), \ cpu_env, 0, s->vlen / 8, data, fn); \ + mark_vs_dirty(s); \ gen_set_label(over); \ return true; \ } \ @@ -2517,6 +2555,7 @@ static bool trans_viota_m(DisasContext *s, arg_viota_m *a) tcg_gen_gvec_3_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0), vreg_ofs(s, a->rs2), cpu_env, 0, s->vlen / 8, data, fns[s->sew]); + mark_vs_dirty(s); gen_set_label(over); return true; } @@ -2542,6 +2581,7 @@ static bool trans_vid_v(DisasContext *s, arg_vid_v *a) }; tcg_gen_gvec_2_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0), cpu_env, 0, s->vlen / 8, data, fns[s->sew]); + mark_vs_dirty(s); gen_set_label(over); return true; } @@ -2717,6 +2757,7 @@ static bool trans_vmv_s_x(DisasContext *s, arg_vmv_s_x *a) tcg_gen_extu_tl_i64(t1, cpu_gpr[a->rs1]); vec_element_storei(s, a->rd, 0, t1); tcg_temp_free_i64(t1); + mark_vs_dirty(s); done: gen_set_label(over); return true; @@ -2767,6 +2808,7 @@ static bool trans_vfmv_s_f(DisasContext *s, arg_vfmv_s_f *a) } vec_element_storei(s, a->rd, 0, t1); tcg_temp_free_i64(t1); + mark_vs_dirty(s); gen_set_label(over); return true; } @@ -2833,6 +2875,7 @@ static bool trans_vrgather_vx(DisasContext *s, arg_rmrr *a) tcg_gen_gvec_dup_i64(s->sew, vreg_ofs(s, a->rd), MAXSZ(s), MAXSZ(s), dest); tcg_temp_free_i64(dest); + mark_vs_dirty(s); } else { static gen_helper_opivx * const fns[4] = { gen_helper_vrgather_vx_b, gen_helper_vrgather_vx_h, @@ -2859,6 +2902,7 @@ static bool trans_vrgather_vi(DisasContext *s, arg_rmrr *a) endian_ofs(s, a->rs2, a->rs1), MAXSZ(s), MAXSZ(s)); } + mark_vs_dirty(s); } else { static gen_helper_opivx * const fns[4] = { gen_helper_vrgather_vx_b, gen_helper_vrgather_vx_h, @@ -2895,6 +2939,7 @@ static bool trans_vcompress_vm(DisasContext *s, arg_r *a) tcg_gen_gvec_4_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, 0), vreg_ofs(s, a->rs1), vreg_ofs(s, a->rs2), cpu_env, 0, s->vlen / 8, data, fns[s->sew]); + mark_vs_dirty(s); gen_set_label(over); return true; } diff --git a/target/riscv/translate.c b/target/riscv/translate.c index bf35182776e..eb42777aa28 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -47,6 +47,7 @@ typedef struct DisasContext { bool virt_enabled; uint32_t opcode; uint32_t mstatus_fs; + uint32_t mstatus_vs; uint32_t misa; uint32_t mem_idx; /* Remember the rounding mode encoded in the previous fp instruction, @@ -445,6 +446,37 @@ static void mark_fs_dirty(DisasContext *ctx) static inline void mark_fs_dirty(DisasContext *ctx) { } #endif +#ifndef CONFIG_USER_ONLY +/* The states of mstatus_vs are: + * 0 = disabled, 1 = initial, 2 = clean, 3 = dirty + * We will have already diagnosed disabled state, + * and need to turn initial/clean into dirty. + */ +static void mark_vs_dirty(DisasContext *ctx) +{ + TCGv tmp; + if (ctx->mstatus_vs == MSTATUS_VS) { + return; + } + /* Remember the state change for the rest of the TB. */ + ctx->mstatus_vs = MSTATUS_VS; + + tmp = tcg_temp_new(); + tcg_gen_ld_tl(tmp, cpu_env, offsetof(CPURISCVState, mstatus)); + tcg_gen_ori_tl(tmp, tmp, MSTATUS_VS | MSTATUS_SD); + tcg_gen_st_tl(tmp, cpu_env, offsetof(CPURISCVState, mstatus)); + + if (ctx->virt_enabled) { + tcg_gen_ld_tl(tmp, cpu_env, offsetof(CPURISCVState, mstatus_hs)); + tcg_gen_ori_tl(tmp, tmp, MSTATUS_VS | MSTATUS_SD); + tcg_gen_st_tl(tmp, cpu_env, offsetof(CPURISCVState, mstatus_hs)); + } + tcg_temp_free(tmp); +} +#else +static inline void mark_vs_dirty(DisasContext *ctx) { } +#endif + #if !defined(TARGET_RISCV64) static void gen_fp_load(DisasContext *ctx, uint32_t opc, int rd, int rs1, target_long imm) @@ -793,6 +825,7 @@ static void riscv_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) ctx->pc_succ_insn = ctx->base.pc_first; ctx->mem_idx = tb_flags & TB_FLAGS_MMU_MASK; ctx->mstatus_fs = tb_flags & TB_FLAGS_MSTATUS_FS; + ctx->mstatus_vs = tb_flags & TB_FLAGS_MSTATUS_VS; ctx->priv_ver = env->priv_ver; #if !defined(CONFIG_USER_ONLY) if (riscv_has_ext(env, RVH)) {