[RESEND,v9,06/28] target/loongarch: Add fixed point bit instruction translation

Message ID	1636340895-5255-7-git-send-email-gaosong@loongson.cn (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=nLaj=P3=nongnu.org=qemu-devel-bounces+qemu-devel=archiver.kernel.org@kernel.org> DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 212AC6128E From: Song Gao <gaosong@loongson.cn> To: qemu-devel@nongnu.org Subject: [RESEND PATCH v9 06/28] target/loongarch: Add fixed point bit instruction translation Date: Mon, 8 Nov 2021 11:07:53 +0800 Message-Id: <1636340895-5255-7-git-send-email-gaosong@loongson.cn> In-Reply-To: <1636340895-5255-1-git-send-email-gaosong@loongson.cn> References: <1636340895-5255-1-git-send-email-gaosong@loongson.cn> Received-SPF: pass client-ip=114.242.206.163; envelope-from=gaosong@loongson.cn; helo=loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action Precedence: list Cc: Xiaojuan Yang <yangxiaojuan@loongson.cn> 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	Add LoongArch linux-user emulation support \| expand [RESEND,v9,00/28] Add LoongArch linux-user emulation support [RESEND,v9,01/28] target/loongarch: Add README [RESEND,v9,02/28] target/loongarch: Add core definition [RESEND,v9,03/28] target/loongarch: Add main translation routines [RESEND,v9,04/28] target/loongarch: Add fixed point arithmetic instruction translation [RESEND,v9,05/28] target/loongarch: Add fixed point shift instruction translation [RESEND,v9,06/28] target/loongarch: Add fixed point bit instruction translation [RESEND,v9,07/28] target/loongarch: Add fixed point load/store instruction translation [RESEND,v9,08/28] target/loongarch: Add fixed point atomic instruction translation [RESEND,v9,09/28] target/loongarch: Add fixed point extra instruction translation [RESEND,v9,10/28] target/loongarch: Add floating point arithmetic instruction translation [RESEND,v9,11/28] target/loongarch: Add floating point comparison instruction translation [RESEND,v9,12/28] target/loongarch: Add floating point conversion instruction translation [RESEND,v9,13/28] target/loongarch: Add floating point move instruction translation [RESEND,v9,14/28] target/loongarch: Add floating point load/store instruction translation [RESEND,v9,15/28] target/loongarch: Add branch instruction translation [RESEND,v9,16/28] target/loongarch: Add disassembler [RESEND,v9,17/28] linux-user: Add LoongArch generic header files [RESEND,v9,18/28] linux-user: Add LoongArch specific structures [RESEND,v9,19/28] linux-user: Add LoongArch signal support [RESEND,v9,20/28] linux-user: Add LoongArch elf support [RESEND,v9,21/28] linux-user: Add LoongArch syscall support [RESEND,v9,22/28] linux-user: Add LoongArch cpu_loop support [RESEND,v9,23/28] default-configs: Add loongarch linux-user support [RESEND,v9,24/28] target/loongarch: Add target build suport [RESEND,v9,25/28] target/loongarch: 'make check-tcg' support [RESEND,v9,26/28] scripts: add loongarch64 binfmt config [RESEND,v9,27/28] linux-user: Add safe syscall handling for loongarch64 hosts [RESEND,v9,28/28] linux-user/host/loongarch64: Populate host_signal.h

diff --git a/target/loongarch/helper.h b/target/loongarch/helper.h index eb771c0..04e0245 100644 --- a/target/loongarch/helper.h +++ b/target/loongarch/helper.h @@ -4,3 +4,7 @@ */ DEF_HELPER_2(raise_exception, noreturn, env, i32) + +DEF_HELPER_FLAGS_1(bitrev_w, TCG_CALL_NO_RWG_SE, tl, tl) +DEF_HELPER_FLAGS_1(bitrev_d, TCG_CALL_NO_RWG_SE, tl, tl) +DEF_HELPER_FLAGS_1(bitswap, TCG_CALL_NO_RWG_SE, tl, tl) diff --git a/target/loongarch/insn_trans/trans_bit.c.inc b/target/loongarch/insn_trans/trans_bit.c.inc new file mode 100644 index 0000000..7dd5d8e --- /dev/null +++ b/target/loongarch/insn_trans/trans_bit.c.inc @@ -0,0 +1,252 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2021 Loongson Technology Corporation Limited + */ + +static bool gen_r2(DisasContext *ctx, arg_fmt_rdrj *a, + DisasExtend src_ext, DisasExtend dst_ext, + void (*func)(TCGv, TCGv)) +{ + TCGv dest = gpr_dst(ctx, a->rd, dst_ext); + TCGv src1 = gpr_src(ctx, a->rj, src_ext); + + func(dest, src1); + + if (dst_ext) { + gen_set_gpr(a->rd, dest, dst_ext); + } + return true; +} + +static bool trans_bytepick_w(DisasContext *ctx, arg_bytepick_w *a) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + TCGv src2 = gpr_src(ctx, a->rk, EXT_NONE); + + tcg_gen_concat_tl_i64(dest, src1, src2); + tcg_gen_sextract_i64(dest, dest, (32 - (a->sa2) * 8), 32); + + return true; +} + +static bool trans_bytepick_d(DisasContext *ctx, arg_bytepick_d *a) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + TCGv src2 = gpr_src(ctx, a->rk, EXT_NONE); + + tcg_gen_extract2_i64(dest, src1, src2, (64 - (a->sa3) * 8)); + return true; +} + +static bool trans_bstrins_w(DisasContext *ctx, arg_bstrins_w *a) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + + if (a->lsbw > a->msbw) { + return false; + } + + tcg_gen_deposit_tl(dest, dest, src1, a->lsbw, a->msbw - a->lsbw + 1); + tcg_gen_ext32s_tl(dest, dest); + + return true; +} + +static bool trans_bstrins_d(DisasContext *ctx, arg_bstrins_d *a) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + + if (a->lsbd > a->msbd) { + return false; + } + + tcg_gen_deposit_tl(dest, dest, src1, a->lsbd, a->msbd - a->lsbd + 1); + return true; +} + +static bool trans_bstrpick_w(DisasContext *ctx, arg_bstrpick_w *a) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + + if (a->lsbw > a->msbw) { + return false; + } + + tcg_gen_extract_tl(dest, src1, a->lsbw, a->msbw - a->lsbw + 1); + tcg_gen_ext32s_tl(dest, dest); + return true; +} + +static bool trans_bstrpick_d(DisasContext *ctx, arg_bstrpick_d *a) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + + if (a->lsbd > a->msbd) { + return false; + } + + tcg_gen_extract_tl(dest, src1, a->lsbd, a->msbd - a->lsbd + 1); + return true; +} + +static void gen_clz_w(TCGv dest, TCGv src1) +{ + tcg_gen_clzi_tl(dest, src1, TARGET_LONG_BITS); + tcg_gen_subi_tl(dest, dest, TARGET_LONG_BITS - 32); +} + +static void gen_clo_w(TCGv dest, TCGv src1) +{ + tcg_gen_not_tl(dest, src1); + tcg_gen_ext32u_tl(dest, dest); + gen_clz_w(dest, dest); +} + +static void gen_ctz_w(TCGv dest, TCGv src1) +{ + tcg_gen_ori_tl(dest, src1, (target_ulong)MAKE_64BIT_MASK(32, 32)); + tcg_gen_ctzi_tl(dest, dest, 32); +} + +static void gen_cto_w(TCGv dest, TCGv src1) +{ + tcg_gen_not_tl(dest, src1); + tcg_gen_ext32u_tl(dest, dest); + gen_ctz_w(dest, dest); +} + +static void gen_clz_d(TCGv dest, TCGv src1) +{ + tcg_gen_clzi_i64(dest, src1, TARGET_LONG_BITS); +} + +static void gen_clo_d(TCGv dest, TCGv src1) +{ + tcg_gen_not_tl(dest, src1); + gen_clz_d(dest, dest); +} + +static void gen_ctz_d(TCGv dest, TCGv src1) +{ + tcg_gen_ctzi_tl(dest, src1, TARGET_LONG_BITS); +} + +static void gen_cto_d(TCGv dest, TCGv src1) +{ + tcg_gen_not_tl(dest, src1); + gen_ctz_d(dest, dest); +} + +static void gen_revb_2w(TCGv dest, TCGv src1) +{ + tcg_gen_bswap64_i64(dest, src1); + tcg_gen_rotri_i64(dest, dest, 32); +} + +static void gen_revb_2h(TCGv dest, TCGv src1) +{ + TCGv mask = tcg_constant_tl(0x00FF00FF); + TCGv t0 = tcg_temp_new(); + TCGv t1 = tcg_temp_new(); + + tcg_gen_shri_tl(t0, src1, 8); + tcg_gen_and_tl(t0, t0, mask); + tcg_gen_and_tl(t1, src1, mask); + tcg_gen_shli_tl(t1, t1, 8); + tcg_gen_or_tl(dest, t0, t1); + + tcg_temp_free(t0); + tcg_temp_free(t1); +} + +static void gen_revb_4h(TCGv dest, TCGv src1) +{ + TCGv mask = tcg_constant_tl(0x00FF00FF00FF00FFULL); + TCGv t0 = tcg_temp_new(); + TCGv t1 = tcg_temp_new(); + + tcg_gen_shri_tl(t0, src1, 8); + tcg_gen_and_tl(t0, t0, mask); + tcg_gen_and_tl(t1, src1, mask); + tcg_gen_shli_tl(t1, t1, 8); + tcg_gen_or_tl(dest, t0, t1); + + tcg_temp_free(t0); + tcg_temp_free(t1); +} + +static void gen_revh_2w(TCGv dest, TCGv src1) +{ + TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_new_i64(); + TCGv_i64 mask = tcg_constant_i64(0x0000ffff0000ffffull); + + tcg_gen_shri_i64(t0, src1, 16); + tcg_gen_and_i64(t1, src1, mask); + tcg_gen_and_i64(t0, t0, mask); + tcg_gen_shli_i64(t1, t1, 16); + tcg_gen_or_i64(dest, t1, t0); + + tcg_temp_free_i64(t0); + tcg_temp_free_i64(t1); +} + +static void gen_revh_d(TCGv dest, TCGv src1) +{ + TCGv t0 = tcg_temp_new(); + TCGv t1 = tcg_temp_new(); + TCGv mask = tcg_constant_tl(0x0000FFFF0000FFFFULL); + + tcg_gen_shri_tl(t1, src1, 16); + tcg_gen_and_tl(t1, t1, mask); + tcg_gen_and_tl(t0, src1, mask); + tcg_gen_shli_tl(t0, t0, 16); + tcg_gen_or_tl(t0, t0, t1); + tcg_gen_rotri_tl(dest, t0, 32); + + tcg_temp_free(t0); + tcg_temp_free(t1); +} + +static void gen_maskeqz(TCGv dest, TCGv src1, TCGv src2) +{ + TCGv zero = tcg_constant_tl(0); + + tcg_gen_movcond_tl(TCG_COND_EQ, dest, src2, zero, zero, src1); +} + +static void gen_masknez(TCGv dest, TCGv src1, TCGv src2) +{ + TCGv zero = tcg_constant_tl(0); + + tcg_gen_movcond_tl(TCG_COND_NE, dest, src2, zero, zero, src1); +} + +TRANS(ext_w_h, gen_r2, EXT_NONE, EXT_NONE, tcg_gen_ext16s_tl) +TRANS(ext_w_b, gen_r2, EXT_NONE, EXT_NONE, tcg_gen_ext8s_tl) +TRANS(clo_w, gen_r2, EXT_NONE, EXT_NONE, gen_clo_w) +TRANS(clz_w, gen_r2, EXT_ZERO, EXT_NONE, gen_clz_w) +TRANS(cto_w, gen_r2, EXT_NONE, EXT_NONE, gen_cto_w) +TRANS(ctz_w, gen_r2, EXT_NONE, EXT_NONE, gen_ctz_w) +TRANS(clo_d, gen_r2, EXT_NONE, EXT_NONE, gen_clo_d) +TRANS(clz_d, gen_r2, EXT_NONE, EXT_NONE, gen_clz_d) +TRANS(cto_d, gen_r2, EXT_NONE, EXT_NONE, gen_cto_d) +TRANS(ctz_d, gen_r2, EXT_NONE, EXT_NONE, gen_ctz_d) +TRANS(revb_2h, gen_r2, EXT_NONE, EXT_SIGN, gen_revb_2h) +TRANS(revb_4h, gen_r2, EXT_NONE, EXT_NONE, gen_revb_4h) +TRANS(revb_2w, gen_r2, EXT_NONE, EXT_NONE, gen_revb_2w) +TRANS(revb_d, gen_r2, EXT_NONE, EXT_NONE, tcg_gen_bswap64_i64) +TRANS(revh_2w, gen_r2, EXT_NONE, EXT_NONE, gen_revh_2w) +TRANS(revh_d, gen_r2, EXT_NONE, EXT_NONE, gen_revh_d) +TRANS(bitrev_4b, gen_r2, EXT_ZERO, EXT_SIGN, gen_helper_bitswap) +TRANS(bitrev_8b, gen_r2, EXT_NONE, EXT_NONE, gen_helper_bitswap) +TRANS(bitrev_w, gen_r2, EXT_NONE, EXT_SIGN, gen_helper_bitrev_w) +TRANS(bitrev_d, gen_r2, EXT_NONE, EXT_NONE, gen_helper_bitrev_d) +TRANS(maskeqz, gen_r3, EXT_NONE, EXT_NONE, EXT_NONE, gen_maskeqz) +TRANS(masknez, gen_r3, EXT_NONE, EXT_NONE, EXT_NONE, gen_masknez) diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode index 88e5f74..c89a43e 100644 --- a/target/loongarch/insns.decode +++ b/target/loongarch/insns.decode @@ -12,12 +12,17 @@ %rj 5:5 %rk 10:5 %sa2 15:2 +%sa3 15:3 %si12 10:s12 %ui12 10:12 %si16 10:s16 %si20 5:s20 %ui5 10:5 %ui6 10:6 +%msbw 16:5 +%lsbw 10:5 +%msbd 16:6 +%lsbd 10:6 # # Argument sets @@ -30,6 +35,10 @@ &fmt_rdsi20 rd si20 &fmt_rdrjui5 rd rj ui5 &fmt_rdrjui6 rd rj ui6 +&fmt_rdrj rd rj +&fmt_rdrjrksa3 rd rj rk sa3 +&fmt_rdrjmsbwlsbw rd rj msbw lsbw +&fmt_rdrjmsbdlsbd rd rj msbd lsbd # # Formats @@ -42,6 +51,10 @@ @fmt_rdsi20 .... ... .................... ..... &fmt_rdsi20 %rd %si20 @fmt_rdrjui5 .... ........ ..... ..... ..... ..... &fmt_rdrjui5 %rd %rj %ui5 @fmt_rdrjui6 .... ........ .... ...... ..... ..... &fmt_rdrjui6 %rd %rj %ui6 +@fmt_rdrj .... ........ ..... ..... ..... ..... &fmt_rdrj %rd %rj +@fmt_rdrjmsbwlsbw .... ....... ..... . ..... ..... ..... &fmt_rdrjmsbwlsbw %rd %rj %msbw %lsbw +@fmt_rdrjmsbdlsbd .... ...... ...... ...... ..... ..... &fmt_rdrjmsbdlsbd %rd %rj %msbd %lsbd +@fmt_rdrjrksa3 .... ........ .. ... ..... ..... ..... &fmt_rdrjrksa3 %rd %rj %rk %sa3 # # Fixed point arithmetic operation instruction @@ -112,3 +125,35 @@ srai_w 0000 00000100 10001 ..... ..... ..... @fmt_rdrjui5 srai_d 0000 00000100 1001 ...... ..... ..... @fmt_rdrjui6 rotri_w 0000 00000100 11001 ..... ..... ..... @fmt_rdrjui5 rotri_d 0000 00000100 1101 ...... ..... ..... @fmt_rdrjui6 + +# +# Fixed point bit operation instruction +# +ext_w_h 0000 00000000 00000 10110 ..... ..... @fmt_rdrj +ext_w_b 0000 00000000 00000 10111 ..... ..... @fmt_rdrj +clo_w 0000 00000000 00000 00100 ..... ..... @fmt_rdrj +clz_w 0000 00000000 00000 00101 ..... ..... @fmt_rdrj +cto_w 0000 00000000 00000 00110 ..... ..... @fmt_rdrj +ctz_w 0000 00000000 00000 00111 ..... ..... @fmt_rdrj +clo_d 0000 00000000 00000 01000 ..... ..... @fmt_rdrj +clz_d 0000 00000000 00000 01001 ..... ..... @fmt_rdrj +cto_d 0000 00000000 00000 01010 ..... ..... @fmt_rdrj +ctz_d 0000 00000000 00000 01011 ..... ..... @fmt_rdrj +revb_2h 0000 00000000 00000 01100 ..... ..... @fmt_rdrj +revb_4h 0000 00000000 00000 01101 ..... ..... @fmt_rdrj +revb_2w 0000 00000000 00000 01110 ..... ..... @fmt_rdrj +revb_d 0000 00000000 00000 01111 ..... ..... @fmt_rdrj +revh_2w 0000 00000000 00000 10000 ..... ..... @fmt_rdrj +revh_d 0000 00000000 00000 10001 ..... ..... @fmt_rdrj +bitrev_4b 0000 00000000 00000 10010 ..... ..... @fmt_rdrj +bitrev_8b 0000 00000000 00000 10011 ..... ..... @fmt_rdrj +bitrev_w 0000 00000000 00000 10100 ..... ..... @fmt_rdrj +bitrev_d 0000 00000000 00000 10101 ..... ..... @fmt_rdrj +bytepick_w 0000 00000000 100 .. ..... ..... ..... @fmt_rdrjrksa2 +bytepick_d 0000 00000000 11 ... ..... ..... ..... @fmt_rdrjrksa3 +maskeqz 0000 00000001 00110 ..... ..... ..... @fmt_rdrjrk +masknez 0000 00000001 00111 ..... ..... ..... @fmt_rdrjrk +bstrins_w 0000 0000011 ..... 0 ..... ..... ..... @fmt_rdrjmsbwlsbw +bstrpick_w 0000 0000011 ..... 1 ..... ..... ..... @fmt_rdrjmsbwlsbw +bstrins_d 0000 000010 ...... ...... ..... ..... @fmt_rdrjmsbdlsbd +bstrpick_d 0000 000011 ...... ...... ..... ..... @fmt_rdrjmsbdlsbd diff --git a/target/loongarch/op_helper.c b/target/loongarch/op_helper.c index 9038109..1fc9d81 100644 --- a/target/loongarch/op_helper.c +++ b/target/loongarch/op_helper.c @@ -19,3 +19,25 @@ void helper_raise_exception(CPULoongArchState *env, uint32_t exception) { do_raise_exception(env, exception, GETPC()); } + + +target_ulong helper_bitrev_w(target_ulong rj) +{ + return (int32_t)revbit32(rj); +} + +target_ulong helper_bitrev_d(target_ulong rj) +{ + return revbit64(rj); +} + +target_ulong helper_bitswap(target_ulong v) +{ + v = ((v >> 1) & (target_ulong)0x5555555555555555ULL) | + ((v & (target_ulong)0x5555555555555555ULL) << 1); + v = ((v >> 2) & (target_ulong)0x3333333333333333ULL) | + ((v & (target_ulong)0x3333333333333333ULL) << 2); + v = ((v >> 4) & (target_ulong)0x0F0F0F0F0F0F0F0FULL) | + ((v & (target_ulong)0x0F0F0F0F0F0F0F0FULL) << 4); + return v; +} diff --git a/target/loongarch/translate.c b/target/loongarch/translate.c index 910aad3..dd349e7 100644 --- a/target/loongarch/translate.c +++ b/target/loongarch/translate.c @@ -142,6 +142,7 @@ static void gen_set_gpr(int reg_num, TCGv t, DisasExtend dst_ext) #include "decode-insns.c.inc" #include "insn_trans/trans_arith.c.inc" #include "insn_trans/trans_shift.c.inc" +#include "insn_trans/trans_bit.c.inc" static void loongarch_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs) {

[RESEND,v9,06/28] target/loongarch: Add fixed point bit instruction translation

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Patch