[RFC,v2,10/76] target/riscv: rvv-0.9: add translation-time vector context status

Message ID	20200722091641.8834-11-frank.chang@sifive.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=6956=BB=nongnu.org=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 36799206D7 From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC v2 10/76] target/riscv: rvv-0.9: add translation-time vector context status Date: Wed, 22 Jul 2020 17:15:33 +0800 Message-Id: <20200722091641.8834-11-frank.chang@sifive.com> In-Reply-To: <20200722091641.8834-1-frank.chang@sifive.com> References: <20200722091641.8834-1-frank.chang@sifive.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::636; envelope-from=frank.chang@sifive.com; helo=mail-pl1-x636.google.com Precedence: list Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>, Frank Chang <frank.chang@sifive.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Richard Henderson <richard.henderson@linaro.org>, Alistair Francis <Alistair.Francis@wdc.com>, Palmer Dabbelt <palmer@dabbelt.com>, LIU Zhiwei <zhiwei_liu@c-sky.com> Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org>
Series	target/riscv: support vector extension v0.9 \| expand [RFC,v2,00/76] target/riscv: support vector extension v0.9 [RFC,v2,01/76] target/riscv: drop vector 0.7.1 support [RFC,v2,02/76] target/riscv: rvv-0.9: support vector 0.9 [RFC,v2,03/76] target/riscv: fix rsub gvec tcg_assert_listed_vecop assertion [RFC,v2,04/76] target/riscv: correct the gvec IR called in gen_vec_rsub16_i64() [RFC,v2,05/76] target/riscv: fix return value of do_opivx_widen() [RFC,v2,06/76] target/riscv: fix vill bit index in vtype register [RFC,v2,07/76] target/riscv: Use FIELD_EX32() to extract wd field [RFC,v2,08/76] target/riscv: rvv-0.9: add mstatus VS field [RFC,v2,09/76] target/riscv: rvv-0.9: add sstatus VS field [RFC,v2,10/76] target/riscv: rvv-0.9: add translation-time vector context status [RFC,v2,11/76] target/riscv: rvv-0.9: remove vxrm and vxsat fields from fcsr register [RFC,v2,12/76] target/riscv: rvv-0.9: add vcsr register [RFC,v2,13/76] target/riscv: rvv-0.9: add vlenb register [RFC,v2,14/76] target/riscv: rvv-0.9: remove MLEN calculations [RFC,v2,15/76] target/riscv: rvv-0.9: add fractional LMUL [RFC,v2,16/76] target/riscv: rvv-0.9: add VMA and VTA [RFC,v2,17/76] target/riscv: rvv-0.9: update check functions [RFC,v2,18/76] target/riscv: introduce more imm value modes in translator functions [RFC,v2,19/76] target/riscv: rvv-0.9: add narrower_nanbox_fpr helper [RFC,v2,20/76] target/riscv: rvv-0.9: apply narrower nanbox helper in opfvf_trans [RFC,v2,21/76] target/riscv: rvv-0.9: configure instructions [RFC,v2,22/76] target/riscv: rvv-0.9: stride load and store instructions [RFC,v2,23/76] target/riscv: rvv-0.9: index load and store instructions [RFC,v2,24/76] target/riscv: rvv-0.9: fix address index overflow bug of indexed load/store insns [RFC,v2,25/76] target/riscv: rvv-0.9: fault-only-first unit stride load [RFC,v2,26/76] target/riscv: rvv-0.9: amo operations [RFC,v2,27/76] target/riscv: rvv-0.9: load/store whole register instructions [RFC,v2,28/76] target/riscv: rvv-0.9: update vext_max_elems() for load/store insns [RFC,v2,29/76] target/riscv: rvv-0.9: take fractional LMUL into vector max elements calculation [RFC,v2,30/76] target/riscv: rvv-0.9: floating-point square-root instruction [RFC,v2,31/76] target/riscv: rvv-0.9: floating-point classify instructions [RFC,v2,32/76] target/riscv: rvv-0.9: mask population count instruction [RFC,v2,33/76] target/riscv: rvv-0.9: find-first-set mask bit instruction [RFC,v2,34/76] target/riscv: rvv-0.9: set-X-first mask bit instructions [RFC,v2,35/76] target/riscv: rvv-0.9: iota instruction [RFC,v2,36/76] target/riscv: rvv-0.9: element index instruction [RFC,v2,37/76] target/riscv: rvv-0.9: allow load element with sign-extended [RFC,v2,38/76] target/riscv: rvv-0.9: register gather instructions [RFC,v2,39/76] target/riscv: rvv-0.9: integer scalar move instructions [RFC,v2,40/76] target/riscv: rvv-0.9: floating-point move instruction [RFC,v2,41/76] target/riscv: rvv-0.9: floating-point scalar move instructions [RFC,v2,42/76] target/riscv: rvv-0.9: whole register move instructions [RFC,v2,43/76] target/riscv: rvv-0.9: integer extension instructions [RFC,v2,44/76] target/riscv: rvv-0.9: single-width averaging add and subtract instructions [RFC,v2,45/76] target/riscv: rvv-0.9: single-width bit shift instructions [RFC,v2,46/76] target/riscv: rvv-0.9: integer add-with-carry/subtract-with-borrow [RFC,v2,47/76] target/riscv: rvv-0.9: narrowing integer right shift instructions [RFC,v2,48/76] target/riscv: rvv-0.9: widening integer multiply-add instructions [RFC,v2,49/76] target/riscv: rvv-0.9: quad-widening integer multiply-add instructions [RFC,v2,50/76] target/riscv: rvv-0.9: single-width saturating add and subtract instructions [RFC,v2,51/76] target/riscv: rvv-0.9: integer comparison instructions [RFC,v2,52/76] fpu: implement full set compare for fp16 [RFC,v2,53/76] target/riscv: use softfloat lib float16 comparison functions [RFC,v2,54/76] target/riscv: rvv-0.9: floating-point compare instructions [RFC,v2,55/76] target/riscv: rvv-0.9: single-width integer reduction instructions [RFC,v2,56/76] target/riscv: rvv-0.9: widening integer reduction instructions [RFC,v2,57/76] target/riscv: rvv-0.9: mask-register logical instructions [RFC,v2,58/76] target/riscv: rvv-0.9: slide instructions [RFC,v2,59/76] target/riscv: rvv-0.9: floating-point slide instructions [RFC,v2,60/76] target/riscv: rvv-0.9: narrowing fixed-point clip instructions [RFC,v2,61/76] target/riscv: rvv-0.9: floating-point/integer type-convert instructions [RFC,v2,62/76] target/riscv: rvv-0.9: single-width floating-point reduction [RFC,v2,63/76] target/riscv: rvv-0.9: widening floating-point reduction instructions [RFC,v2,64/76] target/riscv: rvv-0.9: single-width scaling shift instructions [RFC,v2,65/76] target/riscv: rvv-0.9: remove widening saturating scaled multiply-add [RFC,v2,66/76] target/riscv: rvv-0.9: remove vmford.vv and vmford.vf [RFC,v2,67/76] target/riscv: rvv-0.9: remove integer extract instruction [RFC,v2,68/76] fpu: add api to handle alternative sNaN propagation [RFC,v2,69/76] target/riscv: rvv-0.9: floating-point min/max instructions [RFC,v2,70/76] softfloat: add fp16 and uint8/int8 interconvert functions [RFC,v2,71/76] target/riscv: rvv-0.9: widening floating-point/integer type-convert [RFC,v2,72/76] target/riscv: rvv-0.9: narrowing floating-point/integer type-convert [RFC,v2,73/76] fpu: fix float16 nan check [RFC,v2,74/76] target/riscv: gdb: modify gdb csr xml file to align with csr register map [RFC,v2,75/76] target/riscv: gdb: support vector registers for rv64 [RFC,v2,76/76] target/riscv: gdb: support vector registers for rv32

diff --git a/target/riscv/insn_trans/trans_rvv.inc.c b/target/riscv/insn_trans/trans_rvv.inc.c index c0b7375927..e537e80550 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); } static bool ld_index_check(DisasContext *s, arg_rnfvm* a) @@ -554,7 +566,7 @@ 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) @@ -598,6 +610,7 @@ 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; } @@ -677,6 +690,7 @@ 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; } @@ -823,6 +837,7 @@ 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; } @@ -877,6 +892,7 @@ 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; } @@ -911,6 +927,7 @@ 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); @@ -1024,6 +1041,7 @@ 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; } @@ -1047,10 +1065,10 @@ 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 */ @@ -1111,6 +1129,7 @@ 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; } @@ -1198,6 +1217,7 @@ 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; } @@ -1276,6 +1296,7 @@ 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; \ } \ @@ -1407,6 +1428,7 @@ 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); @@ -1465,6 +1487,7 @@ 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; \ } \ @@ -1648,6 +1671,7 @@ 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; @@ -1690,6 +1714,7 @@ 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; } @@ -1705,6 +1730,7 @@ 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; @@ -1726,6 +1752,7 @@ 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; @@ -1830,6 +1857,7 @@ 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; \ } \ @@ -1865,6 +1893,7 @@ 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; } @@ -1942,6 +1971,7 @@ 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; \ } \ @@ -2016,6 +2046,7 @@ 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; \ } \ @@ -2130,6 +2161,7 @@ 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; \ } \ @@ -2202,6 +2234,7 @@ 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; @@ -2221,6 +2254,7 @@ 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; @@ -2270,6 +2304,7 @@ 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; \ } \ @@ -2318,6 +2353,7 @@ 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; \ } \ @@ -2380,6 +2416,7 @@ 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; \ } \ @@ -2477,6 +2514,7 @@ 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; \ } \ @@ -2508,6 +2546,7 @@ 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; } @@ -2533,6 +2572,7 @@ 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; } @@ -2708,6 +2748,7 @@ 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; @@ -2758,6 +2799,7 @@ 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; } @@ -2824,6 +2866,7 @@ 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, @@ -2850,6 +2893,7 @@ 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, @@ -2886,6 +2930,7 @@ 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 9632e79cf3..02b4204584 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, @@ -416,6 +417,37 @@ 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) @@ -764,6 +796,7 @@ 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)) {

[RFC,v2,10/76] target/riscv: rvv-0.9: add translation-time vector context status

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