[v8,66/78] target/riscv: rvv-1.0: implement vstart CSR

Message ID	20211015074627.3957162-74-frank.chang@sifive.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=d4Ft=PD=nongnu.org=qemu-devel-bounces+qemu-devel=archiver.kernel.org@kernel.org> DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org EC5F060C4D From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v8 66/78] target/riscv: rvv-1.0: implement vstart CSR Date: Fri, 15 Oct 2021 15:46:14 +0800 Message-Id: <20211015074627.3957162-74-frank.chang@sifive.com> In-Reply-To: <20211015074627.3957162-1-frank.chang@sifive.com> References: <20211015074627.3957162-1-frank.chang@sifive.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::631; envelope-from=frank.chang@sifive.com; helo=mail-pl1-x631.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 autolearn=ham autolearn_force=no X-Spam_action: no action Precedence: list Cc: Frank Chang <frank.chang@sifive.com>, Alistair Francis <alistair.francis@wdc.com>, Richard Henderson <richard.henderson@linaro.org>, Bin Meng <bin.meng@windriver.com>, Palmer Dabbelt <palmer@dabbelt.com> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" <qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org>
Series	support vector extension v1.0 \| expand [v8,00/78] support vector extension v1.0 [v8,01/78] target/riscv: fix TB_FLAGS bits overlapping bug for rvv/rvh [v8,02/78] target/riscv: drop vector 0.7.1 and add 1.0 support [v8,03/78] target/riscv: Use FIELD_EX32() to extract wd field [v8,04/78] target/riscv: rvv-1.0: add mstatus VS field [v8,05/78] target/riscv: rvv-1.0: add sstatus VS field [v8,06/78] target/riscv: rvv-1.0: introduce writable misa.v field [v8,07/78] target/riscv: rvv-1.0: add translation-time vector context status [v8,08/78] target/riscv: rvv-1.0: remove rvv related codes from fcsr registers [v8,09/78] target/riscv: rvv-1.0: add vcsr register [v8,10/78] target/riscv: rvv-1.0: add vlenb register [v8,11/78] target/riscv: rvv-1.0: check MSTATUS_VS when accessing vector csr registers [v8,12/78] target/riscv: rvv-1.0: remove MLEN calculations [v8,13/78] target/riscv: rvv-1.0: add fractional LMUL [v8,14/78] target/riscv: rvv-1.0: add VMA and VTA [v8,15/78] target/riscv: rvv-1.0: update check functions [v8,16/78] target/riscv: introduce more imm value modes in translator functions [v8,17/78] target/riscv: rvv:1.0: add translation-time nan-box helper function [18/76] target/riscv: rvv-1.0: configure instructions [19/76] target/riscv: rvv-1.0: stride load and store instructions [v8,20/78] target/riscv: rvv-1.0: stride load and store instructions [21/76] target/riscv: rvv-1.0: fix address index overflow bug of indexed load/store insns [v8,22/78] target/riscv: rvv-1.0: fix address index overflow bug of indexed load/store insns [23/76] target/riscv: rvv-1.0: amo operations [v8,24/78] target/riscv: rvv-1.0: load/store whole register instructions [v8,25/78] target/riscv: rvv-1.0: update vext_max_elems() for load/store insns [v8,26/78] target/riscv: rvv-1.0: take fractional LMUL into vector max elements calculation [v8,27/78] target/riscv: rvv-1.0: floating-point square-root instruction [v8,28/78] target/riscv: rvv-1.0: floating-point classify instructions [29/76] target/riscv: rvv-1.0: mask population count instruction [v8,30/78] target/riscv: rvv-1.0: find-first-set mask bit instruction [v8,31/78] target/riscv: rvv-1.0: set-X-first mask bit instructions [v8,32/78] target/riscv: rvv-1.0: iota instruction [v8,33/78] target/riscv: rvv-1.0: element index instruction [v8,34/78] target/riscv: rvv-1.0: allow load element with sign-extended [v8,35/78] target/riscv: rvv-1.0: register gather instructions [v8,36/78] target/riscv: rvv-1.0: integer scalar move instructions [v8,37/78] target/riscv: rvv-1.0: floating-point move instruction [v8,38/78] target/riscv: rvv-1.0: floating-point scalar move instructions [v8,39/78] target/riscv: rvv-1.0: whole register move instructions [v8,40/78] target/riscv: rvv-1.0: integer extension instructions [v8,41/78] target/riscv: rvv-1.0: single-width averaging add and subtract instructions [v8,42/78] target/riscv: rvv-1.0: single-width bit shift instructions [v8,43/78] target/riscv: rvv-1.0: integer add-with-carry/subtract-with-borrow [v8,44/78] target/riscv: rvv-1.0: narrowing integer right shift instructions [v8,45/78] target/riscv: rvv-1.0: widening integer multiply-add instructions [v8,46/78] target/riscv: rvv-1.0: single-width saturating add and subtract instructions [v8,47/78] target/riscv: rvv-1.0: integer comparison instructions [v8,48/78] target/riscv: rvv-1.0: floating-point compare instructions [v8,49/78] target/riscv: rvv-1.0: mask-register logical instructions [v8,50/78] target/riscv: rvv-1.0: slide instructions [v8,51/78] target/riscv: rvv-1.0: floating-point slide instructions [v8,52/78] target/riscv: rvv-1.0: narrowing fixed-point clip instructions [v8,53/78] target/riscv: rvv-1.0: single-width floating-point reduction [v8,54/78] target/riscv: rvv-1.0: widening floating-point reduction instructions [v8,55/78] target/riscv: rvv-1.0: single-width scaling shift instructions [v8,56/78] target/riscv: rvv-1.0: remove widening saturating scaled multiply-add [v8,57/78] target/riscv: rvv-1.0: remove vmford.vv and vmford.vf [v8,58/78] target/riscv: rvv-1.0: remove integer extract instruction [v8,59/78] target/riscv: rvv-1.0: floating-point min/max instructions [v8,60/78] target/riscv: introduce floating-point rounding mode enum [v8,61/78] target/riscv: rvv-1.0: floating-point/integer type-convert instructions [v8,62/78] target/riscv: rvv-1.0: widening floating-point/integer type-convert [v8,63/78] target/riscv: add "set round to odd" rounding mode helper function [v8,64/78] target/riscv: rvv-1.0: narrowing floating-point/integer type-convert [v8,65/78] target/riscv: rvv-1.0: relax RV_VLEN_MAX to 1024-bits [v8,66/78] target/riscv: rvv-1.0: implement vstart CSR [v8,67/78] target/riscv: rvv-1.0: trigger illegal instruction exception if frm is not valid [v8,68/78] target/riscv: rvv-1.0: set mstatus.SD bit when writing vector CSRs [v8,69/78] target/riscv: gdb: support vector registers for rv64 & rv32 [v8,70/78] target/riscv: rvv-1.0: floating-point reciprocal square-root estimate instruction [v8,71/78] target/riscv: rvv-1.0: floating-point reciprocal estimate instruction [v8,72/78] target/riscv: set mstatus.SD bit when writing fp CSRs [v8,73/78] target/riscv: rvv-1.0: rename r2_zimm to r2_zimm11 [v8,74/78] target/riscv: rvv-1.0: add vsetivli instruction [v8,75/78] target/riscv: rvv-1.0: add evl parameter to vext_ldst_us() [v8,76/78] target/riscv: rvv-1.0: add vector unit-stride mask load/store insns [v8,77/78] target/riscv: rvv-1.0: rename vmandnot.mm and vmornot.mm to vmandn.mm and vmorn.mm [v8,78/78] target/riscv: rvv-1.0: update opivv_vadc_check() comment

diff --git a/target/riscv/csr.c b/target/riscv/csr.c index 688dc1533b6..127393eb956 100644 --- a/target/riscv/csr.c +++ b/target/riscv/csr.c @@ -345,7 +345,11 @@ static RISCVException write_vstart(CPURISCVState *env, int csrno, env->mstatus |= MSTATUS_VS; #endif - env->vstart = val; + /* + * The vstart CSR is defined to have only enough writable bits + * to hold the largest element index, i.e. lg2(VLEN) bits. + */ + env->vstart = val & ~(~0ULL << ctzl(env_archcpu(env)->cfg.vlen)); return RISCV_EXCP_NONE; } diff --git a/target/riscv/helper.h b/target/riscv/helper.h index 1a0d817f0f5..a717a87a0e0 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -1073,6 +1073,11 @@ DEF_HELPER_6(vcompress_vm_h, void, ptr, ptr, ptr, ptr, env, i32) DEF_HELPER_6(vcompress_vm_w, void, ptr, ptr, ptr, ptr, env, i32) DEF_HELPER_6(vcompress_vm_d, void, ptr, ptr, ptr, ptr, env, i32) +DEF_HELPER_4(vmv1r_v, void, ptr, ptr, env, i32) +DEF_HELPER_4(vmv2r_v, void, ptr, ptr, env, i32) +DEF_HELPER_4(vmv4r_v, void, ptr, ptr, env, i32) +DEF_HELPER_4(vmv8r_v, void, ptr, ptr, env, i32) + DEF_HELPER_5(vzext_vf2_h, void, ptr, ptr, ptr, env, i32) DEF_HELPER_5(vzext_vf2_w, void, ptr, ptr, ptr, env, i32) DEF_HELPER_5(vzext_vf2_d, void, ptr, ptr, ptr, env, i32) diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc index dcb96c954ec..ebdea84fef9 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -490,7 +490,7 @@ static bool vext_check_sds(DisasContext *s, int vd, int vs1, int vs2, int vm) */ static bool vext_check_reduction(DisasContext *s, int vs2) { - return require_align(vs2, s->lmul); + return require_align(vs2, s->lmul) && (s->vstart == 0); } /* @@ -2785,7 +2785,8 @@ GEN_MM_TRANS(vmxnor_mm) static bool trans_vcpop_m(DisasContext *s, arg_rmr *a) { if (require_rvv(s) && - vext_check_isa_ill(s)) { + vext_check_isa_ill(s) && + s->vstart == 0) { TCGv_ptr src2, mask; TCGv dst; TCGv_i32 desc; @@ -2816,7 +2817,8 @@ static bool trans_vcpop_m(DisasContext *s, arg_rmr *a) static bool trans_vfirst_m(DisasContext *s, arg_rmr *a) { if (require_rvv(s) && - vext_check_isa_ill(s)) { + vext_check_isa_ill(s) && + s->vstart == 0) { TCGv_ptr src2, mask; TCGv dst; TCGv_i32 desc; @@ -2851,7 +2853,8 @@ static bool trans_##NAME(DisasContext *s, arg_rmr *a) \ if (require_rvv(s) && \ vext_check_isa_ill(s) && \ require_vm(a->vm, a->rd) && \ - (a->rd != a->rs2)) { \ + (a->rd != a->rs2) && \ + (s->vstart == 0)) { \ uint32_t data = 0; \ gen_helper_gvec_3_ptr *fn = gen_helper_##NAME; \ TCGLabel *over = gen_new_label(); \ @@ -2887,7 +2890,8 @@ static bool trans_viota_m(DisasContext *s, arg_viota_m *a) vext_check_isa_ill(s) && !is_overlapped(a->rd, 1 << MAX(s->lmul, 0), a->rs2, 1) && require_vm(a->vm, a->rd) && - require_align(a->rd, s->lmul)) { + require_align(a->rd, s->lmul) && + (s->vstart == 0)) { uint32_t data = 0; TCGLabel *over = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); @@ -3108,6 +3112,7 @@ static bool trans_vmv_s_x(DisasContext *s, arg_vmv_s_x *a) TCGLabel *over = gen_new_label(); tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); + tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); t1 = tcg_temp_new_i64(); @@ -3160,8 +3165,9 @@ static bool trans_vfmv_s_f(DisasContext *s, arg_vfmv_s_f *a) TCGv_i64 t1; TCGLabel *over = gen_new_label(); - /* if vl == 0, skip vector register write back */ + /* if vl == 0 or vstart >= vl, skip vector register write back */ tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); + tcg_gen_brcond_tl(TCG_COND_GEU, cpu_vstart, cpu_vl, over); /* NaN-box f[rs1] */ t1 = tcg_temp_new_i64(); @@ -3332,7 +3338,8 @@ static bool vcompress_vm_check(DisasContext *s, arg_r *a) require_align(a->rd, s->lmul) && require_align(a->rs2, s->lmul) && (a->rd != a->rs2) && - !is_overlapped(a->rd, 1 << MAX(s->lmul, 0), a->rs1, 1); + !is_overlapped(a->rd, 1 << MAX(s->lmul, 0), a->rs1, 1) && + (s->vstart == 0); } static bool trans_vcompress_vm(DisasContext *s, arg_r *a) @@ -3362,26 +3369,40 @@ static bool trans_vcompress_vm(DisasContext *s, arg_r *a) * Whole Vector Register Move Instructions ignore vtype and vl setting. * Thus, we don't need to check vill bit. (Section 16.6) */ -#define GEN_VMV_WHOLE_TRANS(NAME, LEN) \ -static bool trans_##NAME(DisasContext *s, arg_##NAME * a) \ -{ \ - if (require_rvv(s) && \ - QEMU_IS_ALIGNED(a->rd, LEN) && \ - QEMU_IS_ALIGNED(a->rs2, LEN)) { \ - /* EEW = 8 */ \ - tcg_gen_gvec_mov(MO_8, vreg_ofs(s, a->rd), \ - vreg_ofs(s, a->rs2), \ - s->vlen / 8 * LEN, s->vlen / 8 * LEN); \ - mark_vs_dirty(s); \ - return true; \ - } \ - return false; \ -} - -GEN_VMV_WHOLE_TRANS(vmv1r_v, 1) -GEN_VMV_WHOLE_TRANS(vmv2r_v, 2) -GEN_VMV_WHOLE_TRANS(vmv4r_v, 4) -GEN_VMV_WHOLE_TRANS(vmv8r_v, 8) +#define GEN_VMV_WHOLE_TRANS(NAME, LEN, SEQ) \ +static bool trans_##NAME(DisasContext *s, arg_##NAME * a) \ +{ \ + if (require_rvv(s) && \ + QEMU_IS_ALIGNED(a->rd, LEN) && \ + QEMU_IS_ALIGNED(a->rs2, LEN)) { \ + uint32_t maxsz = (s->vlen >> 3) * LEN; \ + if (s->vstart == 0) { \ + /* EEW = 8 */ \ + tcg_gen_gvec_mov(MO_8, vreg_ofs(s, a->rd), \ + vreg_ofs(s, a->rs2), maxsz, maxsz); \ + mark_vs_dirty(s); \ + } else { \ + TCGLabel *over = gen_new_label(); \ + tcg_gen_brcondi_tl(TCG_COND_GEU, cpu_vstart, maxsz, over); \ + \ + static gen_helper_gvec_2_ptr * const fns[4] = { \ + gen_helper_vmv1r_v, gen_helper_vmv2r_v, \ + gen_helper_vmv4r_v, gen_helper_vmv8r_v, \ + }; \ + tcg_gen_gvec_2_ptr(vreg_ofs(s, a->rd), vreg_ofs(s, a->rs2), \ + cpu_env, maxsz, maxsz, 0, fns[SEQ]); \ + mark_vs_dirty(s); \ + gen_set_label(over); \ + } \ + return true; \ + } \ + return false; \ +} + +GEN_VMV_WHOLE_TRANS(vmv1r_v, 1, 0) +GEN_VMV_WHOLE_TRANS(vmv2r_v, 2, 1) +GEN_VMV_WHOLE_TRANS(vmv4r_v, 4, 2) +GEN_VMV_WHOLE_TRANS(vmv8r_v, 8, 3) static bool int_ext_check(DisasContext *s, arg_rmr *a, uint8_t div) { diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 6fa7e016e22..02ff91a1d3b 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -33,7 +33,7 @@ #include "internals.h" /* global register indices */ -static TCGv cpu_gpr[32], cpu_pc, cpu_vl; +static TCGv cpu_gpr[32], cpu_pc, cpu_vl, cpu_vstart; static TCGv_i64 cpu_fpr[32]; /* assume F and D extensions */ static TCGv load_res; static TCGv load_val; @@ -92,6 +92,7 @@ typedef struct DisasContext { int8_t lmul; uint8_t sew; uint16_t vlen; + target_ulong vstart; bool vl_eq_vlmax; uint8_t ntemp; CPUState *cs; @@ -626,6 +627,7 @@ static void riscv_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs) ctx->vill = FIELD_EX32(tb_flags, TB_FLAGS, VILL); ctx->sew = FIELD_EX32(tb_flags, TB_FLAGS, SEW); ctx->lmul = sextract32(FIELD_EX32(tb_flags, TB_FLAGS, LMUL), 0, 3); + ctx->vstart = env->vstart; ctx->vl_eq_vlmax = FIELD_EX32(tb_flags, TB_FLAGS, VL_EQ_VLMAX); ctx->cs = cs; ctx->w = false; @@ -740,6 +742,8 @@ void riscv_translate_init(void) cpu_pc = tcg_global_mem_new(cpu_env, offsetof(CPURISCVState, pc), "pc"); cpu_vl = tcg_global_mem_new(cpu_env, offsetof(CPURISCVState, vl), "vl"); + cpu_vstart = tcg_global_mem_new(cpu_env, offsetof(CPURISCVState, vstart), + "vstart"); load_res = tcg_global_mem_new(cpu_env, offsetof(CPURISCVState, load_res), "load_res"); load_val = tcg_global_mem_new(cpu_env, offsetof(CPURISCVState, load_val), diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 70ddc55e16b..cb0699f4ba2 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -226,25 +226,19 @@ vext_ldst_stride(void *vd, void *v0, target_ulong base, uint32_t nf = vext_nf(desc); uint32_t max_elems = vext_max_elems(desc, esz); - /* probe every access*/ - for (i = 0; i < env->vl; i++) { + for (i = env->vstart; i < env->vl; i++, env->vstart++) { if (!vm && !vext_elem_mask(v0, i)) { continue; } - probe_pages(env, base + stride * i, nf << esz, ra, access_type); - } - /* do real access */ - for (i = 0; i < env->vl; i++) { + k = 0; - if (!vm && !vext_elem_mask(v0, i)) { - continue; - } while (k < nf) { target_ulong addr = base + stride * i + (k << esz); ldst_elem(env, addr, i + k * max_elems, vd, ra); k++; } } + env->vstart = 0; } #define GEN_VEXT_LD_STRIDE(NAME, ETYPE, LOAD_FN) \ @@ -291,10 +285,8 @@ vext_ldst_us(void *vd, target_ulong base, CPURISCVState *env, uint32_t desc, uint32_t nf = vext_nf(desc); uint32_t max_elems = vext_max_elems(desc, esz); - /* probe every access */ - probe_pages(env, base, env->vl * (nf << esz), ra, access_type); /* load bytes from guest memory */ - for (i = 0; i < env->vl; i++) { + for (i = env->vstart; i < env->vl; i++, env->vstart++) { k = 0; while (k < nf) { target_ulong addr = base + ((i * nf + k) << esz); @@ -302,6 +294,7 @@ vext_ldst_us(void *vd, target_ulong base, CPURISCVState *env, uint32_t desc, k++; } } + env->vstart = 0; } /* @@ -381,26 +374,20 @@ vext_ldst_index(void *vd, void *v0, target_ulong base, uint32_t vm = vext_vm(desc); uint32_t max_elems = vext_max_elems(desc, esz); - /* probe every access*/ - for (i = 0; i < env->vl; i++) { - if (!vm && !vext_elem_mask(v0, i)) { - continue; - } - probe_pages(env, get_index_addr(base, i, vs2), nf << esz, ra, - access_type); - } /* load bytes from guest memory */ - for (i = 0; i < env->vl; i++) { - k = 0; + for (i = env->vstart; i < env->vl; i++, env->vstart++) { if (!vm && !vext_elem_mask(v0, i)) { continue; } + + k = 0; while (k < nf) { abi_ptr addr = get_index_addr(base, i, vs2) + (k << esz); ldst_elem(env, addr, i + k * max_elems, vd, ra); k++; } } + env->vstart = 0; } #define GEN_VEXT_LD_INDEX(NAME, ETYPE, INDEX_FN, LOAD_FN) \ @@ -471,7 +458,7 @@ vext_ldff(void *vd, void *v0, target_ulong base, target_ulong addr, offset, remain; /* probe every access*/ - for (i = 0; i < env->vl; i++) { + for (i = env->vstart; i < env->vl; i++) { if (!vm && !vext_elem_mask(v0, i)) { continue; } @@ -511,7 +498,7 @@ ProbeSuccess: if (vl != 0) { env->vl = vl; } - for (i = 0; i < env->vl; i++) { + for (i = env->vstart; i < env->vl; i++) { k = 0; if (!vm && !vext_elem_mask(v0, i)) { continue; @@ -522,6 +509,7 @@ ProbeSuccess: k++; } } + env->vstart = 0; } #define GEN_VEXT_LDFF(NAME, ETYPE, LOAD_FN) \ @@ -559,21 +547,32 @@ vext_ldst_whole(void *vd, target_ulong base, CPURISCVState *env, uint32_t desc, vext_ldst_elem_fn *ldst_elem, uint32_t esz, uintptr_t ra, MMUAccessType access_type) { - uint32_t i, k; + uint32_t i, k, off, pos; uint32_t nf = vext_nf(desc); uint32_t vlenb = env_archcpu(env)->cfg.vlen >> 3; uint32_t max_elems = vlenb >> esz; - /* probe every access */ - probe_pages(env, base, vlenb * nf, ra, access_type); + k = env->vstart / max_elems; + off = env->vstart % max_elems; - /* load bytes from guest memory */ - for (k = 0; k < nf; k++) { - for (i = 0; i < max_elems; i++) { + if (off) { + /* load/store rest of elements of current segment pointed by vstart */ + for (pos = off; pos < max_elems; pos++, env->vstart++) { + target_ulong addr = base + ((pos + k * max_elems) << esz); + ldst_elem(env, addr, pos + k * max_elems, vd, ra); + } + k++; + } + + /* load/store elements for rest of segments */ + for (; k < nf; k++) { + for (i = 0; i < max_elems; i++, env->vstart++) { target_ulong addr = base + ((i + k * max_elems) << esz); ldst_elem(env, addr, i + k * max_elems, vd, ra); } } + + env->vstart = 0; } #define GEN_VEXT_LD_WHOLE(NAME, ETYPE, LOAD_FN) \ @@ -686,12 +685,13 @@ static void do_vext_vv(void *vd, void *v0, void *vs1, void *vs2, uint32_t vl = env->vl; uint32_t i; - for (i = 0; i < vl; i++) { + for (i = env->vstart; i < vl; i++) { if (!vm && !vext_elem_mask(v0, i)) { continue; } fn(vd, vs1, vs2, i); } + env->vstart = 0; } /* generate the helpers for OPIVV */ @@ -748,12 +748,13 @@ static void do_vext_vx(void *vd, void *v0, target_long s1, void *vs2, uint32_t vl = env->vl; uint32_t i; - for (i = 0; i < vl; i++) { + for (i = env->vstart; i < vl; i++) { if (!vm && !vext_elem_mask(v0, i)) { continue; } fn(vd, s1, vs2, i); } + env->vstart = 0; } /* generate the helpers for OPIVX */ @@ -941,13 +942,14 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ ETYPE carry = vext_elem_mask(v0, i); \ \ *((ETYPE *)vd + H(i)) = DO_OP(s2, s1, carry); \ } \ + env->vstart = 0; \ } GEN_VEXT_VADC_VVM(vadc_vvm_b, uint8_t, H1, DO_VADC) @@ -967,12 +969,13 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ ETYPE carry = vext_elem_mask(v0, i); \ \ *((ETYPE *)vd + H(i)) = DO_OP(s2, (ETYPE)(target_long)s1, carry);\ } \ + env->vstart = 0; \ } GEN_VEXT_VADC_VXM(vadc_vxm_b, uint8_t, H1, DO_VADC) @@ -997,12 +1000,13 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ uint32_t vm = vext_vm(desc); \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ ETYPE carry = !vm && vext_elem_mask(v0, i); \ vext_set_elem_mask(vd, i, DO_OP(s2, s1, carry)); \ } \ + env->vstart = 0; \ } GEN_VEXT_VMADC_VVM(vmadc_vvm_b, uint8_t, H1, DO_MADC) @@ -1023,12 +1027,13 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \ uint32_t vm = vext_vm(desc); \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ ETYPE carry = !vm && vext_elem_mask(v0, i); \ vext_set_elem_mask(vd, i, \ DO_OP(s2, (ETYPE)(target_long)s1, carry)); \ } \ + env->vstart = 0; \ } GEN_VEXT_VMADC_VXM(vmadc_vxm_b, uint8_t, H1, DO_MADC) @@ -1105,7 +1110,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ @@ -1113,6 +1118,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ TS2 s2 = *((TS2 *)vs2 + HS2(i)); \ *((TS1 *)vd + HS1(i)) = OP(s2, s1 & MASK); \ } \ + env->vstart = 0; \ } GEN_VEXT_SHIFT_VV(vsll_vv_b, uint8_t, uint8_t, H1, H1, DO_SLL, 0x7) @@ -1139,13 +1145,14 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ TS2 s2 = *((TS2 *)vs2 + HS2(i)); \ *((TD *)vd + HD(i)) = OP(s2, s1 & MASK); \ } \ + env->vstart = 0; \ } GEN_VEXT_SHIFT_VX(vsll_vx_b, uint8_t, int8_t, H1, H1, DO_SLL, 0x7) @@ -1192,7 +1199,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ if (!vm && !vext_elem_mask(v0, i)) { \ @@ -1200,6 +1207,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ } \ vext_set_elem_mask(vd, i, DO_OP(s2, s1)); \ } \ + env->vstart = 0; \ } GEN_VEXT_CMP_VV(vmseq_vv_b, uint8_t, H1, DO_MSEQ) @@ -1240,7 +1248,7 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ @@ -1248,6 +1256,7 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ vext_set_elem_mask(vd, i, \ DO_OP(s2, (ETYPE)(target_long)s1)); \ } \ + env->vstart = 0; \ } GEN_VEXT_CMP_VX(vmseq_vx_b, uint8_t, H1, DO_MSEQ) @@ -1770,10 +1779,11 @@ void HELPER(NAME)(void *vd, void *vs1, CPURISCVState *env, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ *((ETYPE *)vd + H(i)) = s1; \ } \ + env->vstart = 0; \ } GEN_VEXT_VMV_VV(vmv_v_v_b, int8_t, H1) @@ -1788,9 +1798,10 @@ void HELPER(NAME)(void *vd, uint64_t s1, CPURISCVState *env, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ *((ETYPE *)vd + H(i)) = (ETYPE)s1; \ } \ + env->vstart = 0; \ } GEN_VEXT_VMV_VX(vmv_v_x_b, int8_t, H1) @@ -1805,10 +1816,11 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ ETYPE *vt = (!vext_elem_mask(v0, i) ? vs2 : vs1); \ *((ETYPE *)vd + H(i)) = *(vt + H(i)); \ } \ + env->vstart = 0; \ } GEN_VEXT_VMERGE_VV(vmerge_vvm_b, int8_t, H1) @@ -1823,12 +1835,13 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ ETYPE d = (!vext_elem_mask(v0, i) ? s2 : \ (ETYPE)(target_long)s1); \ *((ETYPE *)vd + H(i)) = d; \ } \ + env->vstart = 0; \ } GEN_VEXT_VMERGE_VX(vmerge_vxm_b, int8_t, H1) @@ -1865,12 +1878,13 @@ vext_vv_rm_1(void *vd, void *v0, void *vs1, void *vs2, uint32_t vl, uint32_t vm, int vxrm, opivv2_rm_fn *fn) { - for (uint32_t i = 0; i < vl; i++) { + for (uint32_t i = env->vstart; i < vl; i++) { if (!vm && !vext_elem_mask(v0, i)) { continue; } fn(vd, vs1, vs2, i, env, vxrm); } + env->vstart = 0; } static inline void @@ -1981,12 +1995,13 @@ vext_vx_rm_1(void *vd, void *v0, target_long s1, void *vs2, uint32_t vl, uint32_t vm, int vxrm, opivx2_rm_fn *fn) { - for (uint32_t i = 0; i < vl; i++) { + for (uint32_t i = env->vstart; i < vl; i++) { if (!vm && !vext_elem_mask(v0, i)) { continue; } fn(vd, s1, vs2, i, env, vxrm); } + env->vstart = 0; } static inline void @@ -2768,12 +2783,13 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ do_##NAME(vd, vs1, vs2, i, env); \ } \ + env->vstart = 0; \ } RVVCALL(OPFVV2, vfadd_vv_h, OP_UUU_H, H2, H2, H2, float16_add) @@ -2800,12 +2816,13 @@ void HELPER(NAME)(void *vd, void *v0, uint64_t s1, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ do_##NAME(vd, s1, vs2, i, env); \ } \ + env->vstart = 0; \ } RVVCALL(OPFVF2, vfadd_vf_h, OP_UUU_H, H2, H2, float16_add) @@ -3371,12 +3388,13 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, \ if (vl == 0) { \ return; \ } \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ do_##NAME(vd, vs2, i, env); \ } \ + env->vstart = 0; \ } RVVCALL(OPFVV1, vfsqrt_v_h, OP_UU_H, H2, H2, float16_sqrt) @@ -3507,7 +3525,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ ETYPE s1 = *((ETYPE *)vs1 + H(i)); \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ if (!vm && !vext_elem_mask(v0, i)) { \ @@ -3516,6 +3534,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ vext_set_elem_mask(vd, i, \ DO_OP(s2, s1, &env->fp_status)); \ } \ + env->vstart = 0; \ } GEN_VEXT_CMP_VV_ENV(vmfeq_vv_h, uint16_t, H2, float16_eq_quiet) @@ -3530,7 +3549,7 @@ void HELPER(NAME)(void *vd, void *v0, uint64_t s1, void *vs2, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ @@ -3538,6 +3557,7 @@ void HELPER(NAME)(void *vd, void *v0, uint64_t s1, void *vs2, \ vext_set_elem_mask(vd, i, \ DO_OP(s2, (ETYPE)s1, &env->fp_status)); \ } \ + env->vstart = 0; \ } GEN_VEXT_CMP_VF(vmfeq_vf_h, uint16_t, H2, float16_eq_quiet) @@ -3646,12 +3666,13 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ do_##NAME(vd, vs2, i); \ } \ + env->vstart = 0; \ } target_ulong fclass_h(uint64_t frs1) @@ -3727,11 +3748,12 @@ void HELPER(NAME)(void *vd, void *v0, uint64_t s1, void *vs2, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ ETYPE s2 = *((ETYPE *)vs2 + H(i)); \ *((ETYPE *)vd + H(i)) \ = (!vm && !vext_elem_mask(v0, i) ? s2 : s1); \ } \ + env->vstart = 0; \ } GEN_VFMERGE_VF(vfmerge_vfm_h, int16_t, H2) @@ -3875,7 +3897,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ uint32_t i; \ TD s1 = *((TD *)vs1 + HD(0)); \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ TS2 s2 = *((TS2 *)vs2 + HS2(i)); \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ @@ -3883,6 +3905,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ s1 = OP(s1, (TD)s2); \ } \ *((TD *)vd + HD(0)) = s1; \ + env->vstart = 0; \ } /* vd[0] = sum(vs1[0], vs2[*]) */ @@ -3955,7 +3978,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ uint32_t i; \ TD s1 = *((TD *)vs1 + HD(0)); \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ TS2 s2 = *((TS2 *)vs2 + HS2(i)); \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ @@ -3963,6 +3986,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ s1 = OP(s1, (TD)s2, &env->fp_status); \ } \ *((TD *)vd + HD(0)) = s1; \ + env->vstart = 0; \ } /* Unordered sum */ @@ -3990,7 +4014,7 @@ void HELPER(vfwredsum_vs_h)(void *vd, void *v0, void *vs1, uint32_t i; uint32_t s1 = *((uint32_t *)vs1 + H4(0)); - for (i = 0; i < vl; i++) { + for (i = env->vstart; i < vl; i++) { uint16_t s2 = *((uint16_t *)vs2 + H2(i)); if (!vm && !vext_elem_mask(v0, i)) { continue; @@ -3999,6 +4023,7 @@ void HELPER(vfwredsum_vs_h)(void *vd, void *v0, void *vs1, &env->fp_status); } *((uint32_t *)vd + H4(0)) = s1; + env->vstart = 0; } void HELPER(vfwredsum_vs_w)(void *vd, void *v0, void *vs1, @@ -4009,7 +4034,7 @@ void HELPER(vfwredsum_vs_w)(void *vd, void *v0, void *vs1, uint32_t i; uint64_t s1 = *((uint64_t *)vs1); - for (i = 0; i < vl; i++) { + for (i = env->vstart; i < vl; i++) { uint32_t s2 = *((uint32_t *)vs2 + H4(i)); if (!vm && !vext_elem_mask(v0, i)) { continue; @@ -4018,6 +4043,7 @@ void HELPER(vfwredsum_vs_w)(void *vd, void *v0, void *vs1, &env->fp_status); } *((uint64_t *)vd) = s1; + env->vstart = 0; } /* @@ -4033,11 +4059,12 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, \ uint32_t i; \ int a, b; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ a = vext_elem_mask(vs1, i); \ b = vext_elem_mask(vs2, i); \ vext_set_elem_mask(vd, i, OP(b, a)); \ } \ + env->vstart = 0; \ } #define DO_NAND(N, M) (!(N & M)) @@ -4064,13 +4091,14 @@ target_ulong HELPER(vcpop_m)(void *v0, void *vs2, CPURISCVState *env, uint32_t vl = env->vl; int i; - for (i = 0; i < vl; i++) { + for (i = env->vstart; i < vl; i++) { if (vm || vext_elem_mask(v0, i)) { if (vext_elem_mask(vs2, i)) { cnt++; } } } + env->vstart = 0; return cnt; } @@ -4082,13 +4110,14 @@ target_ulong HELPER(vfirst_m)(void *v0, void *vs2, CPURISCVState *env, uint32_t vl = env->vl; int i; - for (i = 0; i < vl; i++) { + for (i = env->vstart; i < vl; i++) { if (vm || vext_elem_mask(v0, i)) { if (vext_elem_mask(vs2, i)) { return i; } } } + env->vstart = 0; return -1LL; } @@ -4106,7 +4135,7 @@ static void vmsetm(void *vd, void *v0, void *vs2, CPURISCVState *env, int i; bool first_mask_bit = false; - for (i = 0; i < vl; i++) { + for (i = env->vstart; i < vl; i++) { if (!vm && !vext_elem_mask(v0, i)) { continue; } @@ -4130,6 +4159,7 @@ static void vmsetm(void *vd, void *v0, void *vs2, CPURISCVState *env, } } } + env->vstart = 0; } void HELPER(vmsbf_m)(void *vd, void *v0, void *vs2, CPURISCVState *env, @@ -4160,7 +4190,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, CPURISCVState *env, \ uint32_t sum = 0; \ int i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ @@ -4169,6 +4199,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, CPURISCVState *env, \ sum++; \ } \ } \ + env->vstart = 0; \ } GEN_VEXT_VIOTA_M(viota_m_b, uint8_t, H1) @@ -4184,12 +4215,13 @@ void HELPER(NAME)(void *vd, void *v0, CPURISCVState *env, uint32_t desc) \ uint32_t vl = env->vl; \ int i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ *((ETYPE *)vd + H(i)) = i; \ } \ + env->vstart = 0; \ } GEN_VEXT_VID_V(vid_v_b, uint8_t, H1) @@ -4208,9 +4240,10 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ { \ uint32_t vm = vext_vm(desc); \ uint32_t vl = env->vl; \ - target_ulong offset = s1, i; \ + target_ulong offset = s1, i_min, i; \ \ - for (i = offset; i < vl; i++) { \ + i_min = MAX(env->vstart, offset); \ + for (i = i_min; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ @@ -4233,8 +4266,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ uint32_t vl = env->vl; \ target_ulong i_max, i; \ \ - i_max = MIN(s1 < vlmax ? vlmax - s1 : 0, vl); \ - for (i = 0; i < i_max; ++i) { \ + i_max = MAX(MIN(s1 < vlmax ? vlmax - s1 : 0, vl), env->vstart); \ + for (i = env->vstart; i < i_max; ++i) { \ if (vm || vext_elem_mask(v0, i)) { \ *((ETYPE *)vd + H(i)) = *((ETYPE *)vs2 + H(i + s1)); \ } \ @@ -4245,6 +4278,8 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ *((ETYPE *)vd + H(i)) = 0; \ } \ } \ + \ + env->vstart = 0; \ } /* vslidedown.vx vd, vs2, rs1, vm # vd[i] = vs2[i+rs1] */ @@ -4262,7 +4297,7 @@ static void vslide1up_##ESZ(void *vd, void *v0, target_ulong s1, void *vs2, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ @@ -4272,6 +4307,7 @@ static void vslide1up_##ESZ(void *vd, void *v0, target_ulong s1, void *vs2, \ *((ETYPE *)vd + H(i)) = *((ETYPE *)vs2 + H(i - 1)); \ } \ } \ + env->vstart = 0; \ } GEN_VEXT_VSLIE1UP(8, H1) @@ -4301,7 +4337,7 @@ static void vslide1down_##ESZ(void *vd, void *v0, target_ulong s1, void *vs2, \ uint32_t vl = env->vl; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ @@ -4311,6 +4347,7 @@ static void vslide1down_##ESZ(void *vd, void *v0, target_ulong s1, void *vs2, \ *((ETYPE *)vd + H(i)) = *((ETYPE *)vs2 + H(i + 1)); \ } \ } \ + env->vstart = 0; \ } GEN_VEXT_VSLIDE1DOWN(8, H1) @@ -4361,13 +4398,13 @@ GEN_VEXT_VFSLIDE1DOWN_VF(vfslide1down_vf_d, 64) void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ CPURISCVState *env, uint32_t desc) \ { \ - uint32_t vlmax = vext_max_elems(desc, ctzl(sizeof(TS1))); \ + uint32_t vlmax = vext_max_elems(desc, ctzl(sizeof(TS2))); \ uint32_t vm = vext_vm(desc); \ uint32_t vl = env->vl; \ uint64_t index; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ @@ -4378,6 +4415,7 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ *((TS2 *)vd + HS2(i)) = *((TS2 *)vs2 + HS2(index)); \ } \ } \ + env->vstart = 0; \ } /* vd[i] = (vs1[i] >= VLMAX) ? 0 : vs2[vs1[i]]; */ @@ -4401,7 +4439,7 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ uint64_t index = s1; \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ @@ -4411,6 +4449,7 @@ void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ *((ETYPE *)vd + H(i)) = *((ETYPE *)vs2 + H(index)); \ } \ } \ + env->vstart = 0; \ } /* vd[i] = (x[rs1] >= VLMAX) ? 0 : vs2[rs1] */ @@ -4427,13 +4466,14 @@ void HELPER(NAME)(void *vd, void *v0, void *vs1, void *vs2, \ uint32_t vl = env->vl; \ uint32_t num = 0, i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vext_elem_mask(vs1, i)) { \ continue; \ } \ *((ETYPE *)vd + H(num)) = *((ETYPE *)vs2 + H(i)); \ num++; \ } \ + env->vstart = 0; \ } /* Compress into vd elements of vs2 where vs1 is enabled */ @@ -4442,6 +4482,27 @@ GEN_VEXT_VCOMPRESS_VM(vcompress_vm_h, uint16_t, H2) GEN_VEXT_VCOMPRESS_VM(vcompress_vm_w, uint32_t, H4) GEN_VEXT_VCOMPRESS_VM(vcompress_vm_d, uint64_t, H8) +/* Vector Whole Register Move */ +#define GEN_VEXT_VMV_WHOLE(NAME, LEN) \ +void HELPER(NAME)(void *vd, void *vs2, CPURISCVState *env, \ + uint32_t desc) \ +{ \ + /* EEW = 8 */ \ + uint32_t maxsz = simd_maxsz(desc); \ + uint32_t i = env->vstart; \ + \ + memcpy((uint8_t *)vd + H1(i), \ + (uint8_t *)vs2 + H1(i), \ + maxsz - env->vstart); \ + \ + env->vstart = 0; \ +} + +GEN_VEXT_VMV_WHOLE(vmv1r_v, 1) +GEN_VEXT_VMV_WHOLE(vmv2r_v, 2) +GEN_VEXT_VMV_WHOLE(vmv4r_v, 4) +GEN_VEXT_VMV_WHOLE(vmv8r_v, 8) + /* Vector Integer Extension */ #define GEN_VEXT_INT_EXT(NAME, ETYPE, DTYPE, HD, HS1) \ void HELPER(NAME)(void *vd, void *v0, void *vs2, \ @@ -4451,12 +4512,13 @@ void HELPER(NAME)(void *vd, void *v0, void *vs2, \ uint32_t vm = vext_vm(desc); \ uint32_t i; \ \ - for (i = 0; i < vl; i++) { \ + for (i = env->vstart; i < vl; i++) { \ if (!vm && !vext_elem_mask(v0, i)) { \ continue; \ } \ *((ETYPE *)vd + HD(i)) = *((DTYPE *)vs2 + HS1(i)); \ } \ + env->vstart = 0; \ } GEN_VEXT_INT_EXT(vzext_vf2_h, uint16_t, uint8_t, H2, H1)

[v8,66/78] target/riscv: rvv-1.0: implement vstart CSR

Commit Message

Patch