From patchwork Mon Oct 18 12:47:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: gaosong X-Patchwork-Id: 12566439 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 507C7C433EF for ; Mon, 18 Oct 2021 12:58:17 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CB6FF60C4B for ; Mon, 18 Oct 2021 12:58:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org CB6FF60C4B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:56356 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mcSDX-0001AF-Vp for qemu-devel@archiver.kernel.org; Mon, 18 Oct 2021 08:58:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37056) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mcS3O-0004gs-HF for qemu-devel@nongnu.org; Mon, 18 Oct 2021 08:47:46 -0400 Received: from mail.loongson.cn ([114.242.206.163]:49982 helo=loongson.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mcS3J-0003hD-RW for qemu-devel@nongnu.org; Mon, 18 Oct 2021 08:47:46 -0400 Received: from kvm-dev1.localdomain (unknown [10.2.5.134]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9DxT2rfbG1hyhAcAA--.29044S11; Mon, 18 Oct 2021 20:47:36 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Subject: [PATCH v7 09/21] target/loongarch: Add fixed point extra instruction translation Date: Mon, 18 Oct 2021 20:47:15 +0800 Message-Id: <1634561247-25499-10-git-send-email-gaosong@loongson.cn> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1634561247-25499-1-git-send-email-gaosong@loongson.cn> References: <1634561247-25499-1-git-send-email-gaosong@loongson.cn> X-CM-TRANSID: AQAAf9DxT2rfbG1hyhAcAA--.29044S11 X-Coremail-Antispam: 1UD129KBjvJXoW3Xr4kZr4kArW8XF4rWF1UGFg_yoW3CrWDpF 1xCryUGr48Jry7Z3s5Kw45tr15Xr4fuF47X3yftwn5AF17XF1DJr48t39IkFWUJw1DXryj qa13AryDKFyUXaUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnUUvcSsGvfC2KfnxnUUI43ZEXa7xR_UUUUUUUUU== X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ 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 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, thuth@redhat.com, chenhuacai@loongson.cn, philmd@redhat.com, richard.henderson@linaro.org, laurent@vivier.eu, peterx@redhat.com, f4bug@amsat.org, yangxiaojuan@loongson.cn, alistair.francis@wdc.com, maobibo@loongson.cn, pbonzini@redhat.com, bmeng.cn@gmail.com, alex.bennee@linaro.org, gaosong@loongson.cn Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This patch implement fixed point extra instruction translation. This includes: - CRC[C].W.{B/H/W/D}.W - SYSCALL - BREAK - ASRT{LE/GT}.D - RDTIME{L/H}.W, RDTIME.D - CPUCFG Signed-off-by: Song Gao Signed-off-by: Xiaojuan Yang Reviewed-by: Richard Henderson --- target/loongarch/helper.h | 4 ++ target/loongarch/insn_trans/trans_extra.c | 87 +++++++++++++++++++++++++++++++ target/loongarch/insns.decode | 25 +++++++++ target/loongarch/op_helper.c | 26 +++++++++ target/loongarch/translate.c | 1 + 5 files changed, 143 insertions(+) create mode 100644 target/loongarch/insn_trans/trans_extra.c diff --git a/target/loongarch/helper.h b/target/loongarch/helper.h index 09b5a3d..e4b4595 100644 --- a/target/loongarch/helper.h +++ b/target/loongarch/helper.h @@ -14,3 +14,7 @@ DEF_HELPER_FLAGS_1(bitswap, TCG_CALL_NO_RWG_SE, tl, tl) DEF_HELPER_3(asrtle_d, void, env, tl, tl) DEF_HELPER_3(asrtgt_d, void, env, tl, tl) + +DEF_HELPER_3(crc32, tl, tl, tl, tl) +DEF_HELPER_3(crc32c, tl, tl, tl, tl) +DEF_HELPER_2(cpucfg, tl, env, tl) diff --git a/target/loongarch/insn_trans/trans_extra.c b/target/loongarch/insn_trans/trans_extra.c new file mode 100644 index 0000000..8da3b40 --- /dev/null +++ b/target/loongarch/insn_trans/trans_extra.c @@ -0,0 +1,87 @@ +/* + * LoongArch translate functions + * + * Copyright (c) 2021 Loongson Technology Corporation Limited + * + * SPDX-License-Identifier: LGPL-2.1+ + */ + +static bool trans_break(DisasContext *ctx, arg_break *a) +{ + generate_exception(ctx, EXCP_BREAK); + return true; +} + +static bool trans_syscall(DisasContext *ctx, arg_syscall *a) +{ + generate_exception(ctx, EXCP_SYSCALL); + return true; +} + +static bool trans_asrtle_d(DisasContext *ctx, arg_asrtle_d * a) +{ + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + TCGv src2 = gpr_src(ctx, a->rk, EXT_NONE); + + gen_helper_asrtle_d(cpu_env, src1, src2); + return true; +} + +static bool trans_asrtgt_d(DisasContext *ctx, arg_asrtgt_d * a) +{ + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + TCGv src2 = gpr_src(ctx, a->rk, EXT_NONE); + + gen_helper_asrtgt_d(cpu_env, src1, src2); + return true; +} + +static bool trans_rdtimel_w(DisasContext *ctx, arg_rdtimel_w *a) +{ + tcg_gen_movi_tl(cpu_gpr[a->rd], 0); + return true; +} + +static bool trans_rdtimeh_w(DisasContext *ctx, arg_rdtimeh_w *a) +{ + tcg_gen_movi_tl(cpu_gpr[a->rd], 0); + return true; +} + +static bool trans_rdtime_d(DisasContext *ctx, arg_rdtime_d *a) +{ + tcg_gen_movi_tl(cpu_gpr[a->rd], 0); + return true; +} + +static bool trans_cpucfg(DisasContext *ctx, arg_cpucfg *a) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + + gen_helper_cpucfg(dest, cpu_env, src1); + return true; +} + +static bool gen_crc(DisasContext *ctx, arg_fmt_rdrjrk *a, + void (*func)(TCGv, TCGv, TCGv, TCGv), + TCGv tsz) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_SIGN); + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + TCGv src2 = gpr_src(ctx, a->rk, EXT_NONE); + + func(dest, src2, src1, tsz); + + gen_set_gpr(a->rd, dest, EXT_SIGN); + return true; +} + +TRANS(crc_w_b_w, gen_crc, gen_helper_crc32, tcg_constant_tl(1)) +TRANS(crc_w_h_w, gen_crc, gen_helper_crc32, tcg_constant_tl(2)) +TRANS(crc_w_w_w, gen_crc, gen_helper_crc32, tcg_constant_tl(4)) +TRANS(crc_w_d_w, gen_crc, gen_helper_crc32, tcg_constant_tl(8)) +TRANS(crcc_w_b_w, gen_crc, gen_helper_crc32c, tcg_constant_tl(1)) +TRANS(crcc_w_h_w, gen_crc, gen_helper_crc32c, tcg_constant_tl(2)) +TRANS(crcc_w_w_w, gen_crc, gen_helper_crc32c, tcg_constant_tl(4)) +TRANS(crcc_w_d_w, gen_crc, gen_helper_crc32c, tcg_constant_tl(8)) diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode index 574c055..66bc314 100644 --- a/target/loongarch/insns.decode +++ b/target/loongarch/insns.decode @@ -27,6 +27,7 @@ %si14 10:s14 %hint 0:5 %whint 0:15 +%code 0:15 # # Argument sets @@ -46,6 +47,8 @@ &fmt_rdrjsi14 rd rj si14 &fmt_hintrjsi12 hint rj si12 &fmt_whint whint +&fmt_rjrk rj rk +&fmt_code code # # Formats @@ -65,6 +68,8 @@ @fmt_hintrjsi12 .... ...... ............ ..... ..... &fmt_hintrjsi12 %hint %rj %si12 @fmt_whint .... ........ ..... ............... &fmt_whint %whint @fmt_rdrjsi14 .... .... .............. ..... ..... &fmt_rdrjsi14 %rd %rj %si14 +@fmt_rjrk .... ........ ..... ..... ..... ..... &fmt_rjrk %rj %rk +@fmt_code .... ........ ..... ............... &fmt_code %code # # Fixed point arithmetic operation instruction @@ -260,3 +265,23 @@ ammax_db_wu 0011 10000111 00000 ..... ..... ..... @fmt_rdrjrk ammax_db_du 0011 10000111 00001 ..... ..... ..... @fmt_rdrjrk ammin_db_wu 0011 10000111 00010 ..... ..... ..... @fmt_rdrjrk ammin_db_du 0011 10000111 00011 ..... ..... ..... @fmt_rdrjrk + +# +# Fixed point extra instruction +# +crc_w_b_w 0000 00000010 01000 ..... ..... ..... @fmt_rdrjrk +crc_w_h_w 0000 00000010 01001 ..... ..... ..... @fmt_rdrjrk +crc_w_w_w 0000 00000010 01010 ..... ..... ..... @fmt_rdrjrk +crc_w_d_w 0000 00000010 01011 ..... ..... ..... @fmt_rdrjrk +crcc_w_b_w 0000 00000010 01100 ..... ..... ..... @fmt_rdrjrk +crcc_w_h_w 0000 00000010 01101 ..... ..... ..... @fmt_rdrjrk +crcc_w_w_w 0000 00000010 01110 ..... ..... ..... @fmt_rdrjrk +crcc_w_d_w 0000 00000010 01111 ..... ..... ..... @fmt_rdrjrk +break 0000 00000010 10100 ............... @fmt_code +syscall 0000 00000010 10110 ............... @fmt_code +asrtle_d 0000 00000000 00010 ..... ..... 00000 @fmt_rjrk +asrtgt_d 0000 00000000 00011 ..... ..... 00000 @fmt_rjrk +rdtimel_w 0000 00000000 00000 11000 ..... ..... @fmt_rdrj +rdtimeh_w 0000 00000000 00000 11001 ..... ..... @fmt_rdrj +rdtime_d 0000 00000000 00000 11010 ..... ..... @fmt_rdrj +cpucfg 0000 00000000 00000 11011 ..... ..... @fmt_rdrj diff --git a/target/loongarch/op_helper.c b/target/loongarch/op_helper.c index a4ffaf9..0a1a47b 100644 --- a/target/loongarch/op_helper.c +++ b/target/loongarch/op_helper.c @@ -14,6 +14,8 @@ #include "exec/exec-all.h" #include "exec/cpu_ldst.h" #include "internals.h" +#include "qemu/crc32c.h" +#include /* Exceptions helpers */ void helper_raise_exception(CPULoongArchState *env, uint32_t exception) @@ -57,3 +59,27 @@ void helper_asrtgt_d(CPULoongArchState *env, target_ulong rj, target_ulong rk) do_raise_exception(env, EXCP_ADE, GETPC()); } } + +target_ulong helper_crc32(target_ulong val, target_ulong m, uint64_t sz) +{ + uint8_t buf[8]; + target_ulong mask = ((sz * 8) == 64) ? -1ULL : ((1ULL << (sz * 8)) - 1); + + m &= mask; + stq_le_p(buf, m); + return (int32_t) (crc32(val ^ 0xffffffff, buf, sz) ^ 0xffffffff); +} + +target_ulong helper_crc32c(target_ulong val, target_ulong m, uint64_t sz) +{ + uint8_t buf[8]; + target_ulong mask = ((sz * 8) == 64) ? -1ULL : ((1ULL << (sz * 8)) - 1); + m &= mask; + stq_le_p(buf, m); + return (int32_t) (crc32c(val, buf, sz) ^ 0xffffffff); +} + +target_ulong helper_cpucfg(CPULoongArchState *env, target_ulong rj) +{ + return env->cpucfg[rj]; +} diff --git a/target/loongarch/translate.c b/target/loongarch/translate.c index 1ec3be6..d0e1daa 100644 --- a/target/loongarch/translate.c +++ b/target/loongarch/translate.c @@ -175,6 +175,7 @@ static void gen_set_gpr(int reg_num, TCGv t, DisasExtend dst_ext) #include "insn_trans/trans_bit.c" #include "insn_trans/trans_memory.c" #include "insn_trans/trans_atomic.c" +#include "insn_trans/trans_extra.c" static void loongarch_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs) {