[v8,06/62] target/riscv: add vector stride load and store instructions

Message ID	20200521094413.10425-7-zhiwei_liu@c-sky.com
State	New
Headers	show Return-Path: <SRS0=QiA4=7D=nongnu.org=qemu-devel-bounces+qemu-devel=archiver.kernel.org@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AB263204EC From: LIU Zhiwei <zhiwei_liu@c-sky.com> To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v8 06/62] target/riscv: add vector stride load and store instructions Date: Thu, 21 May 2020 17:43:17 +0800 Message-Id: <20200521094413.10425-7-zhiwei_liu@c-sky.com> In-Reply-To: <20200521094413.10425-1-zhiwei_liu@c-sky.com> References: <20200521094413.10425-1-zhiwei_liu@c-sky.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: none client-ip=121.197.200.217; envelope-from=zhiwei_liu@c-sky.com; helo=smtp2200-217.mail.aliyun.com Precedence: list Cc: richard.henderson@linaro.org, wxy194768@alibaba-inc.com, wenmeng_zhang@c-sky.com, alistair.francis@wdc.com, palmer@dabbelt.com, LIU Zhiwei <zhiwei_liu@c-sky.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	target/riscv: support vector extension v0.7.1 \| expand [v8,00/62] target/riscv: support vector extension v0.7.1 [v8,02/62] target/riscv: implementation-defined constant parameters [v8,03/62] target/riscv: support vector extension csr [v8,04/62] target/riscv: add vector configure instruction [v8,05/62] target/riscv: add an internals.h header [v8,06/62] target/riscv: add vector stride load and store instructions [v8,09/62] target/riscv: add vector amo operations [v8,11/62] target/riscv: vector widening integer add and subtract [v8,12/62] target/riscv: vector integer add-with-carry / subtract-with-borrow instructions [v8,14/62] target/riscv: vector single-width bit shift instructions [v8,17/62] target/riscv: vector integer min/max instructions [v8,18/62] target/riscv: vector single-width integer multiply instructions [v8,19/62] target/riscv: vector integer divide instructions [v8,21/62] target/riscv: vector single-width integer multiply-add instructions [v8,22/62] target/riscv: vector widening integer multiply-add instructions [v8,23/62] target/riscv: vector integer merge and move instructions [v8,25/62] target/riscv: vector single-width averaging add and subtract [v8,26/62] target/riscv: vector single-width fractional multiply with rounding and saturation [v8,27/62] target/riscv: vector widening saturating scaled multiply-add [v8,29/62] target/riscv: vector narrowing fixed-point clip instructions [v8,30/62] target/riscv: Update fp_status when float rounding mode changes [v8,32/62] target/riscv: vector widening floating-point add/subtract instructions [v8,34/62] target/riscv: vector widening floating-point multiply [v8,36/62] target/riscv: vector widening floating-point fused multiply-add instructions [v8,38/62] target/riscv: vector floating-point min/max instructions [v8,40/62] target/riscv: vector floating-point compare instructions [v8,45/62] target/riscv: narrowing floating-point/integer type-convert instructions [v8,46/62] target/riscv: vector single-width integer reduction instructions [v8,49/62] target/riscv: vector widening floating-point reduction instructions [v8,51/62] target/riscv: vector mask population count vmpopc [v8,52/62] target/riscv: vmfirst find-first-set mask bit [v8,55/62] target/riscv: vector element index instruction [v8,57/62] target/riscv: integer scalar move instruction [v8,58/62] target/riscv: floating-point scalar move instructions [v8,60/62] target/riscv: vector register gather instruction [v8,62/62] target/riscv: configure and turn on vector extension from command line

diff --git a/target/riscv/helper.h b/target/riscv/helper.h index 3c28c7e407..87dfa90609 100644 --- a/target/riscv/helper.h +++ b/target/riscv/helper.h @@ -78,3 +78,108 @@ DEF_HELPER_1(tlb_flush, void, env) #endif /* Vector functions */ DEF_HELPER_3(vsetvl, tl, env, tl, tl) +DEF_HELPER_5(vlb_v_b, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlb_v_b_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlb_v_h, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlb_v_h_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlb_v_w, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlb_v_w_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlb_v_d, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlb_v_d_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlh_v_h, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlh_v_h_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlh_v_w, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlh_v_w_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlh_v_d, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlh_v_d_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlw_v_w, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlw_v_w_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlw_v_d, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlw_v_d_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vle_v_b, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vle_v_b_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vle_v_h, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vle_v_h_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vle_v_w, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vle_v_w_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vle_v_d, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vle_v_d_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlbu_v_b, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlbu_v_b_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlbu_v_h, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlbu_v_h_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlbu_v_w, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlbu_v_w_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlbu_v_d, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlbu_v_d_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlhu_v_h, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlhu_v_h_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlhu_v_w, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlhu_v_w_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlhu_v_d, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlhu_v_d_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlwu_v_w, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlwu_v_w_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlwu_v_d, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vlwu_v_d_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsb_v_b, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsb_v_b_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsb_v_h, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsb_v_h_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsb_v_w, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsb_v_w_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsb_v_d, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsb_v_d_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsh_v_h, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsh_v_h_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsh_v_w, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsh_v_w_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsh_v_d, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsh_v_d_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsw_v_w, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsw_v_w_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsw_v_d, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vsw_v_d_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vse_v_b, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vse_v_b_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vse_v_h, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vse_v_h_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vse_v_w, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vse_v_w_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vse_v_d, void, ptr, ptr, tl, env, i32) +DEF_HELPER_5(vse_v_d_mask, void, ptr, ptr, tl, env, i32) +DEF_HELPER_6(vlsb_v_b, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlsb_v_h, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlsb_v_w, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlsb_v_d, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlsh_v_h, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlsh_v_w, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlsh_v_d, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlsw_v_w, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlsw_v_d, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlse_v_b, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlse_v_h, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlse_v_w, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlse_v_d, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlsbu_v_b, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlsbu_v_h, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlsbu_v_w, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlsbu_v_d, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlshu_v_h, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlshu_v_w, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlshu_v_d, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlswu_v_w, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vlswu_v_d, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vssb_v_b, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vssb_v_h, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vssb_v_w, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vssb_v_d, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vssh_v_h, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vssh_v_w, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vssh_v_d, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vssw_v_w, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vssw_v_d, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vsse_v_b, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vsse_v_h, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vsse_v_w, void, ptr, ptr, tl, tl, env, i32) +DEF_HELPER_6(vsse_v_d, void, ptr, ptr, tl, tl, env, i32) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 53340bdbc4..ef521152c5 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -25,6 +25,7 @@ %sh10 20:10 %csr 20:12 %rm 12:3 +%nf 29:3 !function=ex_plus_1 # immediates: %imm_i 20:s12 @@ -43,6 +44,8 @@ &u imm rd &shift shamt rs1 rd &atomic aq rl rs2 rs1 rd +&r2nfvm vm rd rs1 nf +&rnfvm vm rd rs1 rs2 nf # Formats 32: @r ....... ..... ..... ... ..... ....... &r %rs2 %rs1 %rd @@ -62,6 +65,8 @@ @r_rm ....... ..... ..... ... ..... ....... %rs2 %rs1 %rm %rd @r2_rm ....... ..... ..... ... ..... ....... %rs1 %rm %rd @r2 ....... ..... ..... ... ..... ....... %rs1 %rd +@r2_nfvm ... ... vm:1 ..... ..... ... ..... ....... &r2nfvm %nf %rs1 %rd +@r_nfvm ... ... vm:1 ..... ..... ... ..... ....... &rnfvm %nf %rs2 %rs1 %rd @r2_zimm . zimm:11 ..... ... ..... ....... %rs1 %rd @hfence_gvma ....... ..... ..... ... ..... ....... %rs2 %rs1 @@ -210,5 +215,32 @@ fcvt_d_w 1101001 00000 ..... ... ..... 1010011 @r2_rm fcvt_d_wu 1101001 00001 ..... ... ..... 1010011 @r2_rm # *** RV32V Extension *** + +# *** Vector loads and stores are encoded within LOADFP/STORE-FP *** +vlb_v ... 100 . 00000 ..... 000 ..... 0000111 @r2_nfvm +vlh_v ... 100 . 00000 ..... 101 ..... 0000111 @r2_nfvm +vlw_v ... 100 . 00000 ..... 110 ..... 0000111 @r2_nfvm +vle_v ... 000 . 00000 ..... 111 ..... 0000111 @r2_nfvm +vlbu_v ... 000 . 00000 ..... 000 ..... 0000111 @r2_nfvm +vlhu_v ... 000 . 00000 ..... 101 ..... 0000111 @r2_nfvm +vlwu_v ... 000 . 00000 ..... 110 ..... 0000111 @r2_nfvm +vsb_v ... 000 . 00000 ..... 000 ..... 0100111 @r2_nfvm +vsh_v ... 000 . 00000 ..... 101 ..... 0100111 @r2_nfvm +vsw_v ... 000 . 00000 ..... 110 ..... 0100111 @r2_nfvm +vse_v ... 000 . 00000 ..... 111 ..... 0100111 @r2_nfvm + +vlsb_v ... 110 . ..... ..... 000 ..... 0000111 @r_nfvm +vlsh_v ... 110 . ..... ..... 101 ..... 0000111 @r_nfvm +vlsw_v ... 110 . ..... ..... 110 ..... 0000111 @r_nfvm +vlse_v ... 010 . ..... ..... 111 ..... 0000111 @r_nfvm +vlsbu_v ... 010 . ..... ..... 000 ..... 0000111 @r_nfvm +vlshu_v ... 010 . ..... ..... 101 ..... 0000111 @r_nfvm +vlswu_v ... 010 . ..... ..... 110 ..... 0000111 @r_nfvm +vssb_v ... 010 . ..... ..... 000 ..... 0100111 @r_nfvm +vssh_v ... 010 . ..... ..... 101 ..... 0100111 @r_nfvm +vssw_v ... 010 . ..... ..... 110 ..... 0100111 @r_nfvm +vsse_v ... 010 . ..... ..... 111 ..... 0100111 @r_nfvm + +# *** new major opcode OP-V *** vsetvli 0 ........... ..... 111 ..... 1010111 @r2_zimm vsetvl 1000000 ..... ..... 111 ..... 1010111 @r diff --git a/target/riscv/insn_trans/trans_rvv.inc.c b/target/riscv/insn_trans/trans_rvv.inc.c index 1007bb778c..e90f956c0f 100644 --- a/target/riscv/insn_trans/trans_rvv.inc.c +++ b/target/riscv/insn_trans/trans_rvv.inc.c @@ -15,6 +15,9 @@ * You should have received a copy of the GNU General Public License along with * this program. If not, see <http://www.gnu.org/licenses/>. */ +#include "tcg/tcg-op-gvec.h" +#include "tcg/tcg-gvec-desc.h" +#include "internals.h" static bool trans_vsetvl(DisasContext *ctx, arg_vsetvl *a) { @@ -77,3 +80,355 @@ static bool trans_vsetvli(DisasContext *ctx, arg_vsetvli *a) tcg_temp_free(dst); return true; } + +/* vector register offset from env */ +static uint32_t vreg_ofs(DisasContext *s, int reg) +{ + return offsetof(CPURISCVState, vreg) + reg * s->vlen / 8; +} + +/* check functions */ + +/* + * In cpu_get_tb_cpu_state(), set VILL if RVV was not present. + * So RVV is also be checked in this function. + */ +static bool vext_check_isa_ill(DisasContext *s) +{ + return !s->vill; +} + +/* + * There are two rules check here. + * + * 1. Vector register numbers are multiples of LMUL. (Section 3.2) + * + * 2. For all widening instructions, the destination LMUL value must also be + * a supported LMUL value. (Section 11.2） + */ +static bool vext_check_reg(DisasContext *s, uint32_t reg, bool widen) +{ + /* + * The destination vector register group results are arranged as if both + * SEW and LMUL were at twice their current settings. (Section 11.2). + */ + int legal = widen ? 2 << s->lmul : 1 << s->lmul; + + return !((s->lmul == 0x3 && widen) || (reg % legal)); +} + +/* + * There are two rules check here. + * + * 1. The destination vector register group for a masked vector instruction can + * only overlap the source mask register (v0) when LMUL=1. (Section 5.3) + * + * 2. In widen instructions and some other insturctions, like vslideup.vx, + * there is no need to check whether LMUL=1. + */ +static bool vext_check_overlap_mask(DisasContext *s, uint32_t vd, bool vm, + bool force) +{ + return (vm != 0 || vd != 0) || (!force && (s->lmul == 0)); +} + +/* The LMUL setting must be such that LMUL * NFIELDS <= 8. (Section 7.8) */ +static bool vext_check_nf(DisasContext *s, uint32_t nf) +{ + return (1 << s->lmul) * nf <= 8; +} + +/* common translation macro */ +#define GEN_VEXT_TRANS(NAME, SEQ, ARGTYPE, OP, CHECK) \ +static bool trans_##NAME(DisasContext *s, arg_##ARGTYPE *a)\ +{ \ + if (CHECK(s, a)) { \ + return OP(s, a, SEQ); \ + } \ + return false; \ +} + +/* + *** unit stride load and store + */ +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) +{ + TCGv_ptr dest, mask; + TCGv base; + TCGv_i32 desc; + + TCGLabel *over = gen_new_label(); + tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); + + dest = tcg_temp_new_ptr(); + mask = tcg_temp_new_ptr(); + base = tcg_temp_new(); + + /* + * As simd_desc supports at most 256 bytes, and in this implementation, + * the max vector group length is 2048 bytes. So split it into two parts. + * + * The first part is vlen in bytes, encoded in maxsz of simd_desc. + * The second part is lmul, encoded in data of simd_desc. + */ + desc = tcg_const_i32(simd_desc(0, s->vlen / 8, data)); + + gen_get_gpr(base, rs1); + tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, vd)); + tcg_gen_addi_ptr(mask, cpu_env, vreg_ofs(s, 0)); + + fn(dest, mask, base, cpu_env, desc); + + tcg_temp_free_ptr(dest); + tcg_temp_free_ptr(mask); + tcg_temp_free(base); + tcg_temp_free_i32(desc); + gen_set_label(over); + return true; +} + +static bool ld_us_op(DisasContext *s, arg_r2nfvm *a, uint8_t seq) +{ + uint32_t data = 0; + gen_helper_ldst_us *fn; + static gen_helper_ldst_us * const fns[2][7][4] = { + /* masked unit stride load */ + { { gen_helper_vlb_v_b_mask, gen_helper_vlb_v_h_mask, + gen_helper_vlb_v_w_mask, gen_helper_vlb_v_d_mask }, + { NULL, gen_helper_vlh_v_h_mask, + gen_helper_vlh_v_w_mask, gen_helper_vlh_v_d_mask }, + { NULL, NULL, + gen_helper_vlw_v_w_mask, gen_helper_vlw_v_d_mask }, + { gen_helper_vle_v_b_mask, gen_helper_vle_v_h_mask, + gen_helper_vle_v_w_mask, gen_helper_vle_v_d_mask }, + { gen_helper_vlbu_v_b_mask, gen_helper_vlbu_v_h_mask, + gen_helper_vlbu_v_w_mask, gen_helper_vlbu_v_d_mask }, + { NULL, gen_helper_vlhu_v_h_mask, + gen_helper_vlhu_v_w_mask, gen_helper_vlhu_v_d_mask }, + { NULL, NULL, + gen_helper_vlwu_v_w_mask, gen_helper_vlwu_v_d_mask } }, + /* unmasked unit stride load */ + { { gen_helper_vlb_v_b, gen_helper_vlb_v_h, + gen_helper_vlb_v_w, gen_helper_vlb_v_d }, + { NULL, gen_helper_vlh_v_h, + gen_helper_vlh_v_w, gen_helper_vlh_v_d }, + { NULL, NULL, + gen_helper_vlw_v_w, gen_helper_vlw_v_d }, + { gen_helper_vle_v_b, gen_helper_vle_v_h, + gen_helper_vle_v_w, gen_helper_vle_v_d }, + { gen_helper_vlbu_v_b, gen_helper_vlbu_v_h, + gen_helper_vlbu_v_w, gen_helper_vlbu_v_d }, + { NULL, gen_helper_vlhu_v_h, + gen_helper_vlhu_v_w, gen_helper_vlhu_v_d }, + { NULL, NULL, + gen_helper_vlwu_v_w, gen_helper_vlwu_v_d } } + }; + + fn = fns[a->vm][seq][s->sew]; + if (fn == NULL) { + return false; + } + + data = FIELD_DP32(data, VDATA, MLEN, s->mlen); + 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); +} + +static bool ld_us_check(DisasContext *s, arg_r2nfvm* a) +{ + return (vext_check_isa_ill(s) && + vext_check_overlap_mask(s, a->rd, a->vm, false) && + vext_check_reg(s, a->rd, false) && + vext_check_nf(s, a->nf)); +} + +GEN_VEXT_TRANS(vlb_v, 0, r2nfvm, ld_us_op, ld_us_check) +GEN_VEXT_TRANS(vlh_v, 1, r2nfvm, ld_us_op, ld_us_check) +GEN_VEXT_TRANS(vlw_v, 2, r2nfvm, ld_us_op, ld_us_check) +GEN_VEXT_TRANS(vle_v, 3, r2nfvm, ld_us_op, ld_us_check) +GEN_VEXT_TRANS(vlbu_v, 4, r2nfvm, ld_us_op, ld_us_check) +GEN_VEXT_TRANS(vlhu_v, 5, r2nfvm, ld_us_op, ld_us_check) +GEN_VEXT_TRANS(vlwu_v, 6, r2nfvm, ld_us_op, ld_us_check) + +static bool st_us_op(DisasContext *s, arg_r2nfvm *a, uint8_t seq) +{ + uint32_t data = 0; + gen_helper_ldst_us *fn; + static gen_helper_ldst_us * const fns[2][4][4] = { + /* masked unit stride load and store */ + { { gen_helper_vsb_v_b_mask, gen_helper_vsb_v_h_mask, + gen_helper_vsb_v_w_mask, gen_helper_vsb_v_d_mask }, + { NULL, gen_helper_vsh_v_h_mask, + gen_helper_vsh_v_w_mask, gen_helper_vsh_v_d_mask }, + { NULL, NULL, + gen_helper_vsw_v_w_mask, gen_helper_vsw_v_d_mask }, + { gen_helper_vse_v_b_mask, gen_helper_vse_v_h_mask, + gen_helper_vse_v_w_mask, gen_helper_vse_v_d_mask } }, + /* unmasked unit stride store */ + { { gen_helper_vsb_v_b, gen_helper_vsb_v_h, + gen_helper_vsb_v_w, gen_helper_vsb_v_d }, + { NULL, gen_helper_vsh_v_h, + gen_helper_vsh_v_w, gen_helper_vsh_v_d }, + { NULL, NULL, + gen_helper_vsw_v_w, gen_helper_vsw_v_d }, + { gen_helper_vse_v_b, gen_helper_vse_v_h, + gen_helper_vse_v_w, gen_helper_vse_v_d } } + }; + + fn = fns[a->vm][seq][s->sew]; + if (fn == NULL) { + return false; + } + + data = FIELD_DP32(data, VDATA, MLEN, s->mlen); + 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); +} + +static bool st_us_check(DisasContext *s, arg_r2nfvm* a) +{ + return (vext_check_isa_ill(s) && + vext_check_reg(s, a->rd, false) && + vext_check_nf(s, a->nf)); +} + +GEN_VEXT_TRANS(vsb_v, 0, r2nfvm, st_us_op, st_us_check) +GEN_VEXT_TRANS(vsh_v, 1, r2nfvm, st_us_op, st_us_check) +GEN_VEXT_TRANS(vsw_v, 2, r2nfvm, st_us_op, st_us_check) +GEN_VEXT_TRANS(vse_v, 3, r2nfvm, st_us_op, st_us_check) + +/* + *** stride load and store + */ +typedef void gen_helper_ldst_stride(TCGv_ptr, TCGv_ptr, TCGv, + TCGv, TCGv_env, TCGv_i32); + +static bool ldst_stride_trans(uint32_t vd, uint32_t rs1, uint32_t rs2, + uint32_t data, gen_helper_ldst_stride *fn, + DisasContext *s) +{ + TCGv_ptr dest, mask; + TCGv base, stride; + TCGv_i32 desc; + + TCGLabel *over = gen_new_label(); + tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_vl, 0, over); + + dest = tcg_temp_new_ptr(); + mask = tcg_temp_new_ptr(); + base = tcg_temp_new(); + stride = tcg_temp_new(); + desc = tcg_const_i32(simd_desc(0, s->vlen / 8, data)); + + gen_get_gpr(base, rs1); + gen_get_gpr(stride, rs2); + tcg_gen_addi_ptr(dest, cpu_env, vreg_ofs(s, vd)); + tcg_gen_addi_ptr(mask, cpu_env, vreg_ofs(s, 0)); + + fn(dest, mask, base, stride, cpu_env, desc); + + tcg_temp_free_ptr(dest); + tcg_temp_free_ptr(mask); + tcg_temp_free(base); + tcg_temp_free(stride); + tcg_temp_free_i32(desc); + gen_set_label(over); + return true; +} + +static bool ld_stride_op(DisasContext *s, arg_rnfvm *a, uint8_t seq) +{ + uint32_t data = 0; + gen_helper_ldst_stride *fn; + static gen_helper_ldst_stride * const fns[7][4] = { + { gen_helper_vlsb_v_b, gen_helper_vlsb_v_h, + gen_helper_vlsb_v_w, gen_helper_vlsb_v_d }, + { NULL, gen_helper_vlsh_v_h, + gen_helper_vlsh_v_w, gen_helper_vlsh_v_d }, + { NULL, NULL, + gen_helper_vlsw_v_w, gen_helper_vlsw_v_d }, + { gen_helper_vlse_v_b, gen_helper_vlse_v_h, + gen_helper_vlse_v_w, gen_helper_vlse_v_d }, + { gen_helper_vlsbu_v_b, gen_helper_vlsbu_v_h, + gen_helper_vlsbu_v_w, gen_helper_vlsbu_v_d }, + { NULL, gen_helper_vlshu_v_h, + gen_helper_vlshu_v_w, gen_helper_vlshu_v_d }, + { NULL, NULL, + gen_helper_vlswu_v_w, gen_helper_vlswu_v_d }, + }; + + fn = fns[seq][s->sew]; + if (fn == NULL) { + return false; + } + + data = FIELD_DP32(data, VDATA, MLEN, s->mlen); + 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); +} + +static bool ld_stride_check(DisasContext *s, arg_rnfvm* a) +{ + return (vext_check_isa_ill(s) && + vext_check_overlap_mask(s, a->rd, a->vm, false) && + vext_check_reg(s, a->rd, false) && + vext_check_nf(s, a->nf)); +} + +GEN_VEXT_TRANS(vlsb_v, 0, rnfvm, ld_stride_op, ld_stride_check) +GEN_VEXT_TRANS(vlsh_v, 1, rnfvm, ld_stride_op, ld_stride_check) +GEN_VEXT_TRANS(vlsw_v, 2, rnfvm, ld_stride_op, ld_stride_check) +GEN_VEXT_TRANS(vlse_v, 3, rnfvm, ld_stride_op, ld_stride_check) +GEN_VEXT_TRANS(vlsbu_v, 4, rnfvm, ld_stride_op, ld_stride_check) +GEN_VEXT_TRANS(vlshu_v, 5, rnfvm, ld_stride_op, ld_stride_check) +GEN_VEXT_TRANS(vlswu_v, 6, rnfvm, ld_stride_op, ld_stride_check) + +static bool st_stride_op(DisasContext *s, arg_rnfvm *a, uint8_t seq) +{ + uint32_t data = 0; + gen_helper_ldst_stride *fn; + static gen_helper_ldst_stride * const fns[4][4] = { + /* masked stride store */ + { gen_helper_vssb_v_b, gen_helper_vssb_v_h, + gen_helper_vssb_v_w, gen_helper_vssb_v_d }, + { NULL, gen_helper_vssh_v_h, + gen_helper_vssh_v_w, gen_helper_vssh_v_d }, + { NULL, NULL, + gen_helper_vssw_v_w, gen_helper_vssw_v_d }, + { gen_helper_vsse_v_b, gen_helper_vsse_v_h, + gen_helper_vsse_v_w, gen_helper_vsse_v_d } + }; + + data = FIELD_DP32(data, VDATA, MLEN, s->mlen); + data = FIELD_DP32(data, VDATA, VM, a->vm); + data = FIELD_DP32(data, VDATA, LMUL, s->lmul); + data = FIELD_DP32(data, VDATA, NF, a->nf); + fn = fns[seq][s->sew]; + if (fn == NULL) { + return false; + } + + return ldst_stride_trans(a->rd, a->rs1, a->rs2, data, fn, s); +} + +static bool st_stride_check(DisasContext *s, arg_rnfvm* a) +{ + return (vext_check_isa_ill(s) && + vext_check_reg(s, a->rd, false) && + vext_check_nf(s, a->nf)); +} + +GEN_VEXT_TRANS(vssb_v, 0, rnfvm, st_stride_op, st_stride_check) +GEN_VEXT_TRANS(vssh_v, 1, rnfvm, st_stride_op, st_stride_check) +GEN_VEXT_TRANS(vssw_v, 2, rnfvm, st_stride_op, st_stride_check) +GEN_VEXT_TRANS(vsse_v, 3, rnfvm, st_stride_op, st_stride_check) diff --git a/target/riscv/internals.h b/target/riscv/internals.h index 0f75634b6c..04b0081f0c 100644 --- a/target/riscv/internals.h +++ b/target/riscv/internals.h @@ -21,4 +21,9 @@ #include "hw/registerfields.h" +/* share data between vector helpers and decode code */ +FIELD(VDATA, MLEN, 0, 8) +FIELD(VDATA, VM, 8, 1) +FIELD(VDATA, LMUL, 9, 2) +FIELD(VDATA, NF, 11, 4) #endif diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 1fff7cefaa..c8ae562e4b 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -61,6 +61,7 @@ typedef struct DisasContext { uint8_t lmul; uint8_t sew; uint16_t vlen; + uint16_t mlen; bool vl_eq_vlmax; } DisasContext; @@ -548,6 +549,11 @@ static void decode_RV32_64C(DisasContext *ctx, uint16_t opcode) } } +static int ex_plus_1(DisasContext *ctx, int nf) +{ + return nf + 1; +} + #define EX_SH(amount) \ static int ex_shift_##amount(DisasContext *ctx, int imm) \ { \ @@ -784,6 +790,7 @@ 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 = FIELD_EX32(tb_flags, TB_FLAGS, LMUL); + ctx->mlen = 1 << (ctx->sew + 3 - ctx->lmul); ctx->vl_eq_vlmax = FIELD_EX32(tb_flags, TB_FLAGS, VL_EQ_VLMAX); } diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index 8e2334b189..2027164b7c 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -18,8 +18,11 @@ #include "qemu/osdep.h" #include "cpu.h" +#include "exec/memop.h" #include "exec/exec-all.h" #include "exec/helper-proto.h" +#include "tcg/tcg-gvec-desc.h" +#include "internals.h" #include <math.h> target_ulong HELPER(vsetvl)(CPURISCVState *env, target_ulong s1, @@ -51,3 +54,410 @@ target_ulong HELPER(vsetvl)(CPURISCVState *env, target_ulong s1, env->vstart = 0; return vl; } + +/* + * Note that vector data is stored in host-endian 64-bit chunks, + * so addressing units smaller than that needs a host-endian fixup. + */ +#ifdef HOST_WORDS_BIGENDIAN +#define H1(x) ((x) ^ 7) +#define H1_2(x) ((x) ^ 6) +#define H1_4(x) ((x) ^ 4) +#define H2(x) ((x) ^ 3) +#define H4(x) ((x) ^ 1) +#define H8(x) ((x)) +#else +#define H1(x) (x) +#define H1_2(x) (x) +#define H1_4(x) (x) +#define H2(x) (x) +#define H4(x) (x) +#define H8(x) (x) +#endif + +static inline uint32_t vext_nf(uint32_t desc) +{ + return FIELD_EX32(simd_data(desc), VDATA, NF); +} + +static inline uint32_t vext_mlen(uint32_t desc) +{ + return FIELD_EX32(simd_data(desc), VDATA, MLEN); +} + +static inline uint32_t vext_vm(uint32_t desc) +{ + return FIELD_EX32(simd_data(desc), VDATA, VM); +} + +static inline uint32_t vext_lmul(uint32_t desc) +{ + return FIELD_EX32(simd_data(desc), VDATA, LMUL); +} + +/* + * Get vector group length in bytes. Its range is [64, 2048]. + * + * As simd_desc support at most 256, the max vlen is 512 bits. + * So vlen in bytes is encoded as maxsz. + */ +static inline uint32_t vext_maxsz(uint32_t desc) +{ + return simd_maxsz(desc) << vext_lmul(desc); +} + +/* + * This function checks watchpoint before real load operation. + * + * In softmmu mode, the TLB API probe_access is enough for watchpoint check. + * In user mode, there is no watchpoint support now. + * + * It will trigger an exception if there is no mapping in TLB + * and page table walk can't fill the TLB entry. Then the guest + * software can return here after process the exception or never return. + */ +static void probe_pages(CPURISCVState *env, target_ulong addr, + target_ulong len, uintptr_t ra, + MMUAccessType access_type) +{ + target_ulong pagelen = -(addr | TARGET_PAGE_MASK); + target_ulong curlen = MIN(pagelen, len); + + probe_access(env, addr, curlen, access_type, + cpu_mmu_index(env, false), ra); + if (len > curlen) { + addr += curlen; + curlen = len - curlen; + probe_access(env, addr, curlen, access_type, + cpu_mmu_index(env, false), ra); + } +} + +#ifdef HOST_WORDS_BIGENDIAN +static void vext_clear(void *tail, uint32_t cnt, uint32_t tot) +{ + /* + * Split the remaining range to two parts. + * The first part is in the last uint64_t unit. + * The second part start from the next uint64_t unit. + */ + int part1 = 0, part2 = tot - cnt; + if (cnt % 8) { + part1 = 8 - (cnt % 8); + part2 = tot - cnt - part1; + memset(tail & ~(7ULL), 0, part1); + memset((tail + 8) & ~(7ULL), 0, part2); + } else { + memset(tail, 0, part2); + } +} +#else +static void vext_clear(void *tail, uint32_t cnt, uint32_t tot) +{ + memset(tail, 0, tot - cnt); +} +#endif + +static void clearb(void *vd, uint32_t idx, uint32_t cnt, uint32_t tot) +{ + int8_t *cur = ((int8_t *)vd + H1(idx)); + vext_clear(cur, cnt, tot); +} + +static void clearh(void *vd, uint32_t idx, uint32_t cnt, uint32_t tot) +{ + int16_t *cur = ((int16_t *)vd + H2(idx)); + vext_clear(cur, cnt, tot); +} + +static void clearl(void *vd, uint32_t idx, uint32_t cnt, uint32_t tot) +{ + int32_t *cur = ((int32_t *)vd + H4(idx)); + vext_clear(cur, cnt, tot); +} + +static void clearq(void *vd, uint32_t idx, uint32_t cnt, uint32_t tot) +{ + int64_t *cur = (int64_t *)vd + idx; + vext_clear(cur, cnt, tot); +} + + +static inline int vext_elem_mask(void *v0, int mlen, int index) +{ + int idx = (index * mlen) / 64; + int pos = (index * mlen) % 64; + return (((uint64_t *)v0)[idx] >> pos) & 1; +} + +/* elements operations for load and store */ +typedef void vext_ldst_elem_fn(CPURISCVState *env, target_ulong addr, + uint32_t idx, void *vd, uintptr_t retaddr); +typedef void clear_fn(void *vd, uint32_t idx, uint32_t cnt, uint32_t tot); + +#define GEN_VEXT_LD_ELEM(NAME, MTYPE, ETYPE, H, LDSUF) \ +static void NAME(CPURISCVState *env, abi_ptr addr, \ + uint32_t idx, void *vd, uintptr_t retaddr)\ +{ \ + MTYPE data; \ + ETYPE *cur = ((ETYPE *)vd + H(idx)); \ + data = cpu_##LDSUF##_data_ra(env, addr, retaddr); \ + *cur = data; \ +} \ + +GEN_VEXT_LD_ELEM(ldb_b, int8_t, int8_t, H1, ldsb) +GEN_VEXT_LD_ELEM(ldb_h, int8_t, int16_t, H2, ldsb) +GEN_VEXT_LD_ELEM(ldb_w, int8_t, int32_t, H4, ldsb) +GEN_VEXT_LD_ELEM(ldb_d, int8_t, int64_t, H8, ldsb) +GEN_VEXT_LD_ELEM(ldh_h, int16_t, int16_t, H2, ldsw) +GEN_VEXT_LD_ELEM(ldh_w, int16_t, int32_t, H4, ldsw) +GEN_VEXT_LD_ELEM(ldh_d, int16_t, int64_t, H8, ldsw) +GEN_VEXT_LD_ELEM(ldw_w, int32_t, int32_t, H4, ldl) +GEN_VEXT_LD_ELEM(ldw_d, int32_t, int64_t, H8, ldl) +GEN_VEXT_LD_ELEM(lde_b, int8_t, int8_t, H1, ldsb) +GEN_VEXT_LD_ELEM(lde_h, int16_t, int16_t, H2, ldsw) +GEN_VEXT_LD_ELEM(lde_w, int32_t, int32_t, H4, ldl) +GEN_VEXT_LD_ELEM(lde_d, int64_t, int64_t, H8, ldq) +GEN_VEXT_LD_ELEM(ldbu_b, uint8_t, uint8_t, H1, ldub) +GEN_VEXT_LD_ELEM(ldbu_h, uint8_t, uint16_t, H2, ldub) +GEN_VEXT_LD_ELEM(ldbu_w, uint8_t, uint32_t, H4, ldub) +GEN_VEXT_LD_ELEM(ldbu_d, uint8_t, uint64_t, H8, ldub) +GEN_VEXT_LD_ELEM(ldhu_h, uint16_t, uint16_t, H2, lduw) +GEN_VEXT_LD_ELEM(ldhu_w, uint16_t, uint32_t, H4, lduw) +GEN_VEXT_LD_ELEM(ldhu_d, uint16_t, uint64_t, H8, lduw) +GEN_VEXT_LD_ELEM(ldwu_w, uint32_t, uint32_t, H4, ldl) +GEN_VEXT_LD_ELEM(ldwu_d, uint32_t, uint64_t, H8, ldl) + +#define GEN_VEXT_ST_ELEM(NAME, ETYPE, H, STSUF) \ +static void NAME(CPURISCVState *env, abi_ptr addr, \ + uint32_t idx, void *vd, uintptr_t retaddr)\ +{ \ + ETYPE data = *((ETYPE *)vd + H(idx)); \ + cpu_##STSUF##_data_ra(env, addr, data, retaddr); \ +} + +GEN_VEXT_ST_ELEM(stb_b, int8_t, H1, stb) +GEN_VEXT_ST_ELEM(stb_h, int16_t, H2, stb) +GEN_VEXT_ST_ELEM(stb_w, int32_t, H4, stb) +GEN_VEXT_ST_ELEM(stb_d, int64_t, H8, stb) +GEN_VEXT_ST_ELEM(sth_h, int16_t, H2, stw) +GEN_VEXT_ST_ELEM(sth_w, int32_t, H4, stw) +GEN_VEXT_ST_ELEM(sth_d, int64_t, H8, stw) +GEN_VEXT_ST_ELEM(stw_w, int32_t, H4, stl) +GEN_VEXT_ST_ELEM(stw_d, int64_t, H8, stl) +GEN_VEXT_ST_ELEM(ste_b, int8_t, H1, stb) +GEN_VEXT_ST_ELEM(ste_h, int16_t, H2, stw) +GEN_VEXT_ST_ELEM(ste_w, int32_t, H4, stl) +GEN_VEXT_ST_ELEM(ste_d, int64_t, H8, stq) + +/* + *** stride: access vector element from strided memory + */ +static void +vext_ldst_stride(void *vd, void *v0, target_ulong base, + target_ulong stride, CPURISCVState *env, + uint32_t desc, uint32_t vm, + vext_ldst_elem_fn *ldst_elem, clear_fn *clear_elem, + uint32_t esz, uint32_t msz, uintptr_t ra, + MMUAccessType access_type) +{ + uint32_t i, k; + uint32_t nf = vext_nf(desc); + uint32_t mlen = vext_mlen(desc); + uint32_t vlmax = vext_maxsz(desc) / esz; + + /* probe every access*/ + for (i = 0; i < env->vl; i++) { + if (!vm && !vext_elem_mask(v0, mlen, i)) { + continue; + } + probe_pages(env, base + stride * i, nf * msz, ra, access_type); + } + /* do real access */ + for (i = 0; i < env->vl; i++) { + k = 0; + if (!vm && !vext_elem_mask(v0, mlen, i)) { + continue; + } + while (k < nf) { + target_ulong addr = base + stride * i + k * msz; + ldst_elem(env, addr, i + k * vlmax, vd, ra); + k++; + } + } + /* clear tail elements */ + if (clear_elem) { + for (k = 0; k < nf; k++) { + clear_elem(vd, env->vl + k * vlmax, env->vl * esz, vlmax * esz); + } + } +} + +#define GEN_VEXT_LD_STRIDE(NAME, MTYPE, ETYPE, LOAD_FN, CLEAR_FN) \ +void HELPER(NAME)(void *vd, void * v0, target_ulong base, \ + target_ulong stride, CPURISCVState *env, \ + uint32_t desc) \ +{ \ + uint32_t vm = vext_vm(desc); \ + vext_ldst_stride(vd, v0, base, stride, env, desc, vm, LOAD_FN, \ + CLEAR_FN, sizeof(ETYPE), sizeof(MTYPE), \ + GETPC(), MMU_DATA_LOAD); \ +} + +GEN_VEXT_LD_STRIDE(vlsb_v_b, int8_t, int8_t, ldb_b, clearb) +GEN_VEXT_LD_STRIDE(vlsb_v_h, int8_t, int16_t, ldb_h, clearh) +GEN_VEXT_LD_STRIDE(vlsb_v_w, int8_t, int32_t, ldb_w, clearl) +GEN_VEXT_LD_STRIDE(vlsb_v_d, int8_t, int64_t, ldb_d, clearq) +GEN_VEXT_LD_STRIDE(vlsh_v_h, int16_t, int16_t, ldh_h, clearh) +GEN_VEXT_LD_STRIDE(vlsh_v_w, int16_t, int32_t, ldh_w, clearl) +GEN_VEXT_LD_STRIDE(vlsh_v_d, int16_t, int64_t, ldh_d, clearq) +GEN_VEXT_LD_STRIDE(vlsw_v_w, int32_t, int32_t, ldw_w, clearl) +GEN_VEXT_LD_STRIDE(vlsw_v_d, int32_t, int64_t, ldw_d, clearq) +GEN_VEXT_LD_STRIDE(vlse_v_b, int8_t, int8_t, lde_b, clearb) +GEN_VEXT_LD_STRIDE(vlse_v_h, int16_t, int16_t, lde_h, clearh) +GEN_VEXT_LD_STRIDE(vlse_v_w, int32_t, int32_t, lde_w, clearl) +GEN_VEXT_LD_STRIDE(vlse_v_d, int64_t, int64_t, lde_d, clearq) +GEN_VEXT_LD_STRIDE(vlsbu_v_b, uint8_t, uint8_t, ldbu_b, clearb) +GEN_VEXT_LD_STRIDE(vlsbu_v_h, uint8_t, uint16_t, ldbu_h, clearh) +GEN_VEXT_LD_STRIDE(vlsbu_v_w, uint8_t, uint32_t, ldbu_w, clearl) +GEN_VEXT_LD_STRIDE(vlsbu_v_d, uint8_t, uint64_t, ldbu_d, clearq) +GEN_VEXT_LD_STRIDE(vlshu_v_h, uint16_t, uint16_t, ldhu_h, clearh) +GEN_VEXT_LD_STRIDE(vlshu_v_w, uint16_t, uint32_t, ldhu_w, clearl) +GEN_VEXT_LD_STRIDE(vlshu_v_d, uint16_t, uint64_t, ldhu_d, clearq) +GEN_VEXT_LD_STRIDE(vlswu_v_w, uint32_t, uint32_t, ldwu_w, clearl) +GEN_VEXT_LD_STRIDE(vlswu_v_d, uint32_t, uint64_t, ldwu_d, clearq) + +#define GEN_VEXT_ST_STRIDE(NAME, MTYPE, ETYPE, STORE_FN) \ +void HELPER(NAME)(void *vd, void *v0, target_ulong base, \ + target_ulong stride, CPURISCVState *env, \ + uint32_t desc) \ +{ \ + uint32_t vm = vext_vm(desc); \ + vext_ldst_stride(vd, v0, base, stride, env, desc, vm, STORE_FN, \ + NULL, sizeof(ETYPE), sizeof(MTYPE), \ + GETPC(), MMU_DATA_STORE); \ +} + +GEN_VEXT_ST_STRIDE(vssb_v_b, int8_t, int8_t, stb_b) +GEN_VEXT_ST_STRIDE(vssb_v_h, int8_t, int16_t, stb_h) +GEN_VEXT_ST_STRIDE(vssb_v_w, int8_t, int32_t, stb_w) +GEN_VEXT_ST_STRIDE(vssb_v_d, int8_t, int64_t, stb_d) +GEN_VEXT_ST_STRIDE(vssh_v_h, int16_t, int16_t, sth_h) +GEN_VEXT_ST_STRIDE(vssh_v_w, int16_t, int32_t, sth_w) +GEN_VEXT_ST_STRIDE(vssh_v_d, int16_t, int64_t, sth_d) +GEN_VEXT_ST_STRIDE(vssw_v_w, int32_t, int32_t, stw_w) +GEN_VEXT_ST_STRIDE(vssw_v_d, int32_t, int64_t, stw_d) +GEN_VEXT_ST_STRIDE(vsse_v_b, int8_t, int8_t, ste_b) +GEN_VEXT_ST_STRIDE(vsse_v_h, int16_t, int16_t, ste_h) +GEN_VEXT_ST_STRIDE(vsse_v_w, int32_t, int32_t, ste_w) +GEN_VEXT_ST_STRIDE(vsse_v_d, int64_t, int64_t, ste_d) + +/* + *** unit-stride: access elements stored contiguously in memory + */ + +/* unmasked unit-stride load and store operation*/ +static void +vext_ldst_us(void *vd, target_ulong base, CPURISCVState *env, uint32_t desc, + vext_ldst_elem_fn *ldst_elem, clear_fn *clear_elem, + uint32_t esz, uint32_t msz, uintptr_t ra, + MMUAccessType access_type) +{ + uint32_t i, k; + uint32_t nf = vext_nf(desc); + uint32_t vlmax = vext_maxsz(desc) / esz; + + /* probe every access */ + probe_pages(env, base, env->vl * nf * msz, ra, access_type); + /* load bytes from guest memory */ + for (i = 0; i < env->vl; i++) { + k = 0; + while (k < nf) { + target_ulong addr = base + (i * nf + k) * msz; + ldst_elem(env, addr, i + k * vlmax, vd, ra); + k++; + } + } + /* clear tail elements */ + if (clear_elem) { + for (k = 0; k < nf; k++) { + clear_elem(vd, env->vl + k * vlmax, env->vl * esz, vlmax * esz); + } + } +} + +/* + * masked unit-stride load and store operation will be a special case of stride, + * stride = NF * sizeof (MTYPE) + */ + +#define GEN_VEXT_LD_US(NAME, MTYPE, ETYPE, LOAD_FN, CLEAR_FN) \ +void HELPER(NAME##_mask)(void *vd, void *v0, target_ulong base, \ + CPURISCVState *env, uint32_t desc) \ +{ \ + uint32_t stride = vext_nf(desc) * sizeof(MTYPE); \ + vext_ldst_stride(vd, v0, base, stride, env, desc, false, LOAD_FN, \ + CLEAR_FN, sizeof(ETYPE), sizeof(MTYPE), \ + GETPC(), MMU_DATA_LOAD); \ +} \ + \ +void HELPER(NAME)(void *vd, void *v0, target_ulong base, \ + CPURISCVState *env, uint32_t desc) \ +{ \ + vext_ldst_us(vd, base, env, desc, LOAD_FN, CLEAR_FN, \ + sizeof(ETYPE), sizeof(MTYPE), GETPC(), MMU_DATA_LOAD); \ +} + +GEN_VEXT_LD_US(vlb_v_b, int8_t, int8_t, ldb_b, clearb) +GEN_VEXT_LD_US(vlb_v_h, int8_t, int16_t, ldb_h, clearh) +GEN_VEXT_LD_US(vlb_v_w, int8_t, int32_t, ldb_w, clearl) +GEN_VEXT_LD_US(vlb_v_d, int8_t, int64_t, ldb_d, clearq) +GEN_VEXT_LD_US(vlh_v_h, int16_t, int16_t, ldh_h, clearh) +GEN_VEXT_LD_US(vlh_v_w, int16_t, int32_t, ldh_w, clearl) +GEN_VEXT_LD_US(vlh_v_d, int16_t, int64_t, ldh_d, clearq) +GEN_VEXT_LD_US(vlw_v_w, int32_t, int32_t, ldw_w, clearl) +GEN_VEXT_LD_US(vlw_v_d, int32_t, int64_t, ldw_d, clearq) +GEN_VEXT_LD_US(vle_v_b, int8_t, int8_t, lde_b, clearb) +GEN_VEXT_LD_US(vle_v_h, int16_t, int16_t, lde_h, clearh) +GEN_VEXT_LD_US(vle_v_w, int32_t, int32_t, lde_w, clearl) +GEN_VEXT_LD_US(vle_v_d, int64_t, int64_t, lde_d, clearq) +GEN_VEXT_LD_US(vlbu_v_b, uint8_t, uint8_t, ldbu_b, clearb) +GEN_VEXT_LD_US(vlbu_v_h, uint8_t, uint16_t, ldbu_h, clearh) +GEN_VEXT_LD_US(vlbu_v_w, uint8_t, uint32_t, ldbu_w, clearl) +GEN_VEXT_LD_US(vlbu_v_d, uint8_t, uint64_t, ldbu_d, clearq) +GEN_VEXT_LD_US(vlhu_v_h, uint16_t, uint16_t, ldhu_h, clearh) +GEN_VEXT_LD_US(vlhu_v_w, uint16_t, uint32_t, ldhu_w, clearl) +GEN_VEXT_LD_US(vlhu_v_d, uint16_t, uint64_t, ldhu_d, clearq) +GEN_VEXT_LD_US(vlwu_v_w, uint32_t, uint32_t, ldwu_w, clearl) +GEN_VEXT_LD_US(vlwu_v_d, uint32_t, uint64_t, ldwu_d, clearq) + +#define GEN_VEXT_ST_US(NAME, MTYPE, ETYPE, STORE_FN) \ +void HELPER(NAME##_mask)(void *vd, void *v0, target_ulong base, \ + CPURISCVState *env, uint32_t desc) \ +{ \ + uint32_t stride = vext_nf(desc) * sizeof(MTYPE); \ + vext_ldst_stride(vd, v0, base, stride, env, desc, false, STORE_FN, \ + NULL, sizeof(ETYPE), sizeof(MTYPE), \ + GETPC(), MMU_DATA_STORE); \ +} \ + \ +void HELPER(NAME)(void *vd, void *v0, target_ulong base, \ + CPURISCVState *env, uint32_t desc) \ +{ \ + vext_ldst_us(vd, base, env, desc, STORE_FN, NULL, \ + sizeof(ETYPE), sizeof(MTYPE), GETPC(), MMU_DATA_STORE);\ +} + +GEN_VEXT_ST_US(vsb_v_b, int8_t, int8_t , stb_b) +GEN_VEXT_ST_US(vsb_v_h, int8_t, int16_t, stb_h) +GEN_VEXT_ST_US(vsb_v_w, int8_t, int32_t, stb_w) +GEN_VEXT_ST_US(vsb_v_d, int8_t, int64_t, stb_d) +GEN_VEXT_ST_US(vsh_v_h, int16_t, int16_t, sth_h) +GEN_VEXT_ST_US(vsh_v_w, int16_t, int32_t, sth_w) +GEN_VEXT_ST_US(vsh_v_d, int16_t, int64_t, sth_d) +GEN_VEXT_ST_US(vsw_v_w, int32_t, int32_t, stw_w) +GEN_VEXT_ST_US(vsw_v_d, int32_t, int64_t, stw_d) +GEN_VEXT_ST_US(vse_v_b, int8_t, int8_t , ste_b) +GEN_VEXT_ST_US(vse_v_h, int16_t, int16_t, ste_h) +GEN_VEXT_ST_US(vse_v_w, int32_t, int32_t, ste_w) +GEN_VEXT_ST_US(vse_v_d, int64_t, int64_t, ste_d)

[v8,06/62] target/riscv: add vector stride load and store instructions

Commit Message

Patch