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Wed, 06 Mar 2024 09:20:02 -0800 (PST) From: Daniel Henrique Barboza To: qemu-devel@nongnu.org Cc: qemu-riscv@nongnu.org, alistair.francis@wdc.com, bmeng@tinylab.org, liwei1518@gmail.com, zhiwei_liu@linux.alibaba.com, palmer@rivosinc.com, Ivan Klokov , Daniel Henrique Barboza , Richard Henderson Subject: [PATCH v7 8/9] target/riscv: Clear vstart_qe_zero flag Date: Wed, 6 Mar 2024 14:19:31 -0300 Message-ID: <20240306171932.549549-9-dbarboza@ventanamicro.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240306171932.549549-1-dbarboza@ventanamicro.com> References: <20240306171932.549549-1-dbarboza@ventanamicro.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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: pass client-ip=2607:f8b0:4864:20::633; envelope-from=dbarboza@ventanamicro.com; helo=mail-pl1-x633.google.com 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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ventanamicro.com) X-ZM-MESSAGEID: 1709745701091100001 Content-Type: text/plain; charset="utf-8" From: Ivan Klokov The vstart_qe_zero flag is set at the beginning of the translation phase from the env->vstart variable. During the execution phase all functions will set env->vstart =3D 0 after a successful execution, but the vstart_eq_zero flag remains the same as at the start of the block. This will wrongly cause SIGILLs in translations that requires env->vstart =3D 0 and might be reading vstart_eq_zero =3D false. This patch adds a new finalize_rvv_inst() helper that is called at the end of each vector instruction that will both update vstart_eq_zero and do a mark_vs_dirty(). Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1976 Signed-off-by: Ivan Klokov Signed-off-by: Daniel Henrique Barboza Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis --- target/riscv/insn_trans/trans_rvbf16.c.inc | 6 +- target/riscv/insn_trans/trans_rvv.c.inc | 78 ++++++++++++---------- target/riscv/insn_trans/trans_rvvk.c.inc | 12 ++-- target/riscv/translate.c | 6 ++ 4 files changed, 56 insertions(+), 46 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvbf16.c.inc b/target/riscv/insn= _trans/trans_rvbf16.c.inc index a842e76a6b..0a9cd1ec31 100644 --- a/target/riscv/insn_trans/trans_rvbf16.c.inc +++ b/target/riscv/insn_trans/trans_rvbf16.c.inc @@ -83,7 +83,7 @@ static bool trans_vfncvtbf16_f_f_w(DisasContext *ctx, arg= _vfncvtbf16_f_f_w *a) ctx->cfg_ptr->vlenb, ctx->cfg_ptr->vlenb, data, gen_helper_vfncvtbf16_f_f_w); - mark_vs_dirty(ctx); + finalize_rvv_inst(ctx); return true; } return false; @@ -108,7 +108,7 @@ static bool trans_vfwcvtbf16_f_f_v(DisasContext *ctx, a= rg_vfwcvtbf16_f_f_v *a) ctx->cfg_ptr->vlenb, ctx->cfg_ptr->vlenb, data, gen_helper_vfwcvtbf16_f_f_v); - mark_vs_dirty(ctx); + finalize_rvv_inst(ctx); return true; } return false; @@ -135,7 +135,7 @@ static bool trans_vfwmaccbf16_vv(DisasContext *ctx, arg= _vfwmaccbf16_vv *a) ctx->cfg_ptr->vlenb, ctx->cfg_ptr->vlenb, data, gen_helper_vfwmaccbf16_vv); - mark_vs_dirty(ctx); + finalize_rvv_inst(ctx); return true; } return false; diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_tr= ans/trans_rvv.c.inc index 5018bb5a62..85ef48eb87 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -167,7 +167,7 @@ static bool do_vsetvl(DisasContext *s, int rd, int rs1,= TCGv s2) =20 gen_helper_vsetvl(dst, tcg_env, s1, s2); gen_set_gpr(s, rd, dst); - mark_vs_dirty(s); + finalize_rvv_inst(s); =20 gen_update_pc(s, s->cur_insn_len); lookup_and_goto_ptr(s); @@ -187,7 +187,7 @@ static bool do_vsetivli(DisasContext *s, int rd, TCGv s= 1, TCGv s2) =20 gen_helper_vsetvl(dst, tcg_env, s1, s2); gen_set_gpr(s, rd, dst); - mark_vs_dirty(s); + finalize_rvv_inst(s); gen_update_pc(s, s->cur_insn_len); lookup_and_goto_ptr(s); s->base.is_jmp =3D DISAS_NORETURN; @@ -657,6 +657,7 @@ static bool ldst_us_trans(uint32_t vd, uint32_t rs1, ui= nt32_t data, tcg_gen_mb(TCG_MO_ALL | TCG_BAR_LDAQ); } =20 + finalize_rvv_inst(s); return true; } =20 @@ -812,6 +813,7 @@ static bool ldst_stride_trans(uint32_t vd, uint32_t rs1= , uint32_t rs2, =20 fn(dest, mask, base, stride, tcg_env, desc); =20 + finalize_rvv_inst(s); return true; } =20 @@ -913,6 +915,7 @@ static bool ldst_index_trans(uint32_t vd, uint32_t rs1,= uint32_t vs2, =20 fn(dest, mask, base, index, tcg_env, desc); =20 + finalize_rvv_inst(s); return true; } =20 @@ -1043,7 +1046,7 @@ static bool ldff_trans(uint32_t vd, uint32_t rs1, uin= t32_t data, =20 fn(dest, mask, base, tcg_env, desc); =20 - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } =20 @@ -1100,6 +1103,7 @@ static bool ldst_whole_trans(uint32_t vd, uint32_t rs= 1, uint32_t nf, =20 fn(dest, base, tcg_env, desc); =20 + finalize_rvv_inst(s); return true; } =20 @@ -1189,7 +1193,7 @@ do_opivv_gvec(DisasContext *s, arg_rmrr *a, GVecGen3F= n *gvec_fn, tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fn); } - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } =20 @@ -1240,7 +1244,7 @@ static bool opivx_trans(uint32_t vd, uint32_t rs1, ui= nt32_t vs2, uint32_t vm, =20 fn(dest, mask, src1, src2, tcg_env, desc); =20 - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } =20 @@ -1265,7 +1269,7 @@ do_opivx_gvec(DisasContext *s, arg_rmrr *a, GVecGen2s= Fn *gvec_fn, gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), src1, MAXSZ(s), MAXSZ(s)); =20 - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s); @@ -1398,7 +1402,7 @@ static bool opivi_trans(uint32_t vd, uint32_t imm, ui= nt32_t vs2, uint32_t vm, =20 fn(dest, mask, src1, src2, tcg_env, desc); =20 - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } =20 @@ -1412,7 +1416,7 @@ do_opivi_gvec(DisasContext *s, arg_rmrr *a, GVecGen2i= Fn *gvec_fn, if (a->vm && s->vl_eq_vlmax && !(s->vta && s->lmul < 0)) { gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), extract_imm(s, a->rs1, imm_mode), MAXSZ(s), MAXSZ(s)); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return opivi_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s, imm_mode); @@ -1471,7 +1475,7 @@ static bool do_opivv_widen(DisasContext *s, arg_rmrr = *a, tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fn); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -1543,7 +1547,7 @@ static bool do_opiwv_widen(DisasContext *s, arg_rmrr = *a, vreg_ofs(s, a->rs2), tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fn); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -1611,7 +1615,7 @@ static bool opivv_trans(uint32_t vd, uint32_t vs1, ui= nt32_t vs2, uint32_t vm, tcg_gen_gvec_4_ptr(vreg_ofs(s, vd), vreg_ofs(s, 0), vreg_ofs(s, vs1), vreg_ofs(s, vs2), tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fn); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } =20 @@ -1744,7 +1748,7 @@ do_opivx_gvec_shift(DisasContext *s, arg_rmrr *a, GVe= cGen2sFn32 *gvec_fn, gvec_fn(s->sew, vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), src1, MAXSZ(s), MAXSZ(s)); =20 - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return opivx_trans(a->rd, a->rs1, a->rs2, a->vm, fn, s); @@ -1801,7 +1805,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a= ) \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2004,7 +2008,7 @@ static bool trans_vmv_v_v(DisasContext *s, arg_vmv_v_= v *a) s->cfg_ptr->vlenb, data, fns[s->sew]); } - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -2049,7 +2053,7 @@ static bool trans_vmv_v_x(DisasContext *s, arg_vmv_v_= x *a) fns[s->sew](dest, s1_i64, tcg_env, desc); } =20 - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -2083,7 +2087,7 @@ static bool trans_vmv_v_i(DisasContext *s, arg_vmv_v_= i *a) tcg_gen_addi_ptr(dest, tcg_env, vreg_ofs(s, a->rd)); fns[s->sew](dest, s1, tcg_env, desc); } - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -2231,7 +2235,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a= ) \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew - 1]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2265,7 +2269,7 @@ static bool opfvf_trans(uint32_t vd, uint32_t rs1, ui= nt32_t vs2, =20 fn(dest, mask, t1, src2, tcg_env, desc); =20 - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } =20 @@ -2340,7 +2344,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a= ) \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew - 1]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2411,7 +2415,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmrr *a= ) \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew - 1]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2523,7 +2527,7 @@ static bool do_opfv(DisasContext *s, arg_rmr *a, vreg_ofs(s, a->rs2), tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fn); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -2633,7 +2637,7 @@ static bool trans_vfmv_v_f(DisasContext *s, arg_vfmv_= v_f *a) =20 fns[s->sew - 1](dest, t1, tcg_env, desc); } - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -2705,7 +2709,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a)= \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew - 1]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2753,7 +2757,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a)= \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2817,7 +2821,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a)= \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew - 1]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2863,7 +2867,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a)= \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, \ fns[s->sew]); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -2949,7 +2953,7 @@ static bool trans_##NAME(DisasContext *s, arg_r *a) = \ vreg_ofs(s, a->rs2), tcg_env, \ s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, data, fn); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -3048,7 +3052,7 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a)= \ tcg_env, s->cfg_ptr->vlenb, \ s->cfg_ptr->vlenb, \ data, fn); \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -3087,7 +3091,7 @@ static bool trans_viota_m(DisasContext *s, arg_viota_= m *a) vreg_ofs(s, a->rs2), tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fns[s->sew]); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -3114,7 +3118,7 @@ static bool trans_vid_v(DisasContext *s, arg_vid_v *a) tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fns[s->sew]); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -3293,7 +3297,7 @@ static bool trans_vmv_s_x(DisasContext *s, arg_vmv_s_= x *a) s1 =3D get_gpr(s, a->rs1, EXT_NONE); tcg_gen_ext_tl_i64(t1, s1); vec_element_storei(s, a->rd, 0, t1); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -3341,7 +3345,7 @@ static bool trans_vfmv_s_f(DisasContext *s, arg_vfmv_= s_f *a) do_nanbox(s, t1, cpu_fpr[a->rs1]); =20 vec_element_storei(s, a->rd, 0, t1); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -3447,7 +3451,7 @@ static bool trans_vrgather_vx(DisasContext *s, arg_rm= rr *a) =20 tcg_gen_gvec_dup_i64(s->sew, vreg_ofs(s, a->rd), MAXSZ(s), MAXSZ(s), dest); - mark_vs_dirty(s); + finalize_rvv_inst(s); } else { static gen_helper_opivx * const fns[4] =3D { gen_helper_vrgather_vx_b, gen_helper_vrgather_vx_h, @@ -3475,7 +3479,7 @@ static bool trans_vrgather_vi(DisasContext *s, arg_rm= rr *a) endian_ofs(s, a->rs2, a->rs1), MAXSZ(s), MAXSZ(s)); } - mark_vs_dirty(s); + finalize_rvv_inst(s); } else { static gen_helper_opivx * const fns[4] =3D { gen_helper_vrgather_vx_b, gen_helper_vrgather_vx_h, @@ -3520,7 +3524,7 @@ static bool trans_vcompress_vm(DisasContext *s, arg_r= *a) tcg_env, s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fns[s->sew]); - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -3545,7 +3549,7 @@ static bool trans_##NAME(DisasContext *s, arg_##NAME = * a) \ tcg_gen_gvec_2_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), \ tcg_env, maxsz, maxsz, 0, gen_helper_vmvr_v= ); \ } \ - mark_vs_dirty(s); \ + finalize_rvv_inst(s); \ return true; \ } \ return false; \ @@ -3616,7 +3620,7 @@ static bool int_ext_op(DisasContext *s, arg_rmr *a, u= int8_t seq) s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, data, fn); =20 - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } =20 diff --git a/target/riscv/insn_trans/trans_rvvk.c.inc b/target/riscv/insn_t= rans/trans_rvvk.c.inc index 6d640e4596..ae1f40174a 100644 --- a/target/riscv/insn_trans/trans_rvvk.c.inc +++ b/target/riscv/insn_trans/trans_rvvk.c.inc @@ -174,7 +174,7 @@ GEN_OPIVX_GVEC_TRANS_CHECK(vandn_vx, andcs, zvkb_vx_che= ck) vreg_ofs(s, a->rs2), tcg_env, = \ s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, = \ data, fns[s->sew]); = \ - mark_vs_dirty(s); = \ + finalize_rvv_inst(s); = \ return true; = \ } = \ return false; = \ @@ -266,7 +266,7 @@ GEN_OPIVI_WIDEN_TRANS(vwsll_vi, IMM_ZX, vwsll_vx, vwsll= _vx_check) tcg_gen_addi_ptr(rd_v, tcg_env, vreg_ofs(s, a->rd)); = \ tcg_gen_addi_ptr(rs2_v, tcg_env, vreg_ofs(s, a->rs2)); = \ gen_helper_##NAME(rd_v, rs2_v, tcg_env, desc); = \ - mark_vs_dirty(s); = \ + finalize_rvv_inst(s); = \ return true; = \ } = \ return false; = \ @@ -341,7 +341,7 @@ GEN_V_UNMASKED_TRANS(vaesem_vs, vaes_check_vs, ZVKNED_E= GS) tcg_gen_addi_ptr(rd_v, tcg_env, vreg_ofs(s, a->rd)); = \ tcg_gen_addi_ptr(rs2_v, tcg_env, vreg_ofs(s, a->rs2)); = \ gen_helper_##NAME(rd_v, rs2_v, uimm_v, tcg_env, desc); = \ - mark_vs_dirty(s); = \ + finalize_rvv_inst(s); = \ return true; = \ } = \ return false; = \ @@ -405,7 +405,7 @@ GEN_VI_UNMASKED_TRANS(vaeskf2_vi, vaeskf2_check, ZVKNED= _EGS) s->cfg_ptr->vlenb, s->cfg_ptr->vlenb, = \ data, gen_helper_##NAME); = \ = \ - mark_vs_dirty(s); = \ + finalize_rvv_inst(s); = \ return true; = \ } = \ return false; = \ @@ -457,7 +457,7 @@ static bool trans_vsha2cl_vv(DisasContext *s, arg_rmrr = *a) s->sew =3D=3D MO_32 ? gen_helper_vsha2cl32_vv : gen_helper_vsha2cl64_vv); =20 - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; @@ -488,7 +488,7 @@ static bool trans_vsha2ch_vv(DisasContext *s, arg_rmrr = *a) s->sew =3D=3D MO_32 ? gen_helper_vsha2ch32_vv : gen_helper_vsha2ch64_vv); =20 - mark_vs_dirty(s); + finalize_rvv_inst(s); return true; } return false; diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 002808895c..9ed9de8b95 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -676,6 +676,12 @@ static void mark_vs_dirty(DisasContext *ctx) static inline void mark_vs_dirty(DisasContext *ctx) { } #endif =20 +static void finalize_rvv_inst(DisasContext *ctx) +{ + mark_vs_dirty(ctx); + ctx->vstart_eq_zero =3D true; +} + static void gen_set_rm(DisasContext *ctx, int rm) { if (ctx->frm =3D=3D rm) { --=20 2.43.2