From patchwork Tue Sep 14 13:00:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: gaosong X-Patchwork-Id: 12493165 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1098C433F5 for ; Tue, 14 Sep 2021 13:09:48 +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 51185610CE for ; Tue, 14 Sep 2021 13:09:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 51185610CE 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]:42946 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mQ8C3-0004VV-GX for qemu-devel@archiver.kernel.org; Tue, 14 Sep 2021 09:09:47 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37566) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mQ83y-0005eg-8x for qemu-devel@nongnu.org; Tue, 14 Sep 2021 09:01:26 -0400 Received: from mail.loongson.cn ([114.242.206.163]:57662 helo=loongson.cn) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mQ83h-0007sg-2p for qemu-devel@nongnu.org; Tue, 14 Sep 2021 09:01:24 -0400 Received: from kvm-dev1.localdomain (unknown [10.2.5.134]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9DxheXvnEBhNJ0GAA--.21668S10; Tue, 14 Sep 2021 21:01:02 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Subject: [PATCH v5 08/21] target/loongarch: Add fixed point atomic instruction translation Date: Tue, 14 Sep 2021 21:00:18 +0800 Message-Id: <1631624431-30658-9-git-send-email-gaosong@loongson.cn> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1631624431-30658-1-git-send-email-gaosong@loongson.cn> References: <1631624431-30658-1-git-send-email-gaosong@loongson.cn> X-CM-TRANSID: AQAAf9DxheXvnEBhNJ0GAA--.21668S10 X-Coremail-Antispam: 1UD129KBjvJXoW3Jw4xKw43XFWxWFy8Gr4rZrb_yoWDGw1kpr 42kryxXr4Fqry5Jr95tws0g343GFnIv347Wry3tr1kZF1UGF15JF18J39IkFWUXws5ZFW8 KFWay34jkFy5JaUanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 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: 0 X-Spam_score: -0.0 X-Spam_bar: / X-Spam_report: (-0.0 / 5.0 requ) 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, philmd@redhat.com, richard.henderson@linaro.org, laurent@vivier.eu, peterx@redhat.com, gaosong@loongson.cn, yangxiaojuan@loongson.cn, alistair.francis@wdc.com, maobibo@loongson.cn, pbonzini@redhat.com, bmeng.cn@gmail.com, alex.bennee@linaro.org, chenhuacai@loongson.cn Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This patch implement fixed point atomic instruction translation. This includes: - LL.{W/D}, SC.{W/D} - AM{SWAP/ADD/AND/OR/XOR/MAX/MIN}[_DB].{W/D} - AM{MAX/MIN}[_DB].{WU/DU} Signed-off-by: Song Gao Signed-off-by: XiaoJuan Yang Reviewed-by: Richard Henderson --- target/loongarch/insn_trans/trans_atomic.c | 133 +++++++++++++++++++++++++++++ target/loongarch/insns.decode | 44 ++++++++++ target/loongarch/translate.c | 1 + 3 files changed, 178 insertions(+) create mode 100644 target/loongarch/insn_trans/trans_atomic.c diff --git a/target/loongarch/insn_trans/trans_atomic.c b/target/loongarch/insn_trans/trans_atomic.c new file mode 100644 index 0000000..7613f21 --- /dev/null +++ b/target/loongarch/insn_trans/trans_atomic.c @@ -0,0 +1,133 @@ +/* + * LoongArch translate functions + * + * Copyright (c) 2021 Loongson Technology Corporation Limited + * + * SPDX-License-Identifier: LGPL-2.1+ + */ + +static bool gen_ll(DisasContext *ctx, arg_fmt_rdrjsi14 *a, + void (*func)(TCGv, TCGv, int)) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + TCGv t0 = tcg_temp_new(); + + tcg_gen_addi_tl(t0, src1, a->si14 << 2); + func(dest, t0, ctx->mem_idx); + tcg_gen_st_tl(t0, cpu_env, offsetof(CPULoongArchState, lladdr)); + tcg_gen_st_tl(dest, cpu_env, offsetof(CPULoongArchState, llval)); + tcg_temp_free(t0); + return true; +} + +static bool gen_sc(DisasContext *ctx, arg_fmt_rdrjsi14 *a, MemOp mop) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + TCGv src1 = gpr_src(ctx, a->rj, EXT_NONE); + TCGv src2 = gpr_src(ctx, a->rd, EXT_NONE); + TCGv t0 = tcg_temp_new(); + TCGv val = tcg_temp_new(); + + TCGLabel *l1 = gen_new_label(); + TCGLabel *done = gen_new_label(); + + tcg_gen_addi_tl(t0, src1, a->si14 << 2); + tcg_gen_brcond_tl(TCG_COND_EQ, t0, cpu_lladdr, l1); + tcg_gen_movi_tl(dest, 0); + tcg_gen_br(done); + + gen_set_label(l1); + tcg_gen_mov_tl(val, src2); + /* generate cmpxchg */ + tcg_gen_atomic_cmpxchg_tl(t0, cpu_lladdr, cpu_llval, + val, ctx->mem_idx, mop); + tcg_gen_setcond_tl(TCG_COND_EQ, dest, t0, cpu_llval); + gen_set_label(done); + tcg_temp_free(t0); + tcg_temp_free(val); + return true; +} + +static bool gen_am(DisasContext *ctx, arg_fmt_rdrjrk *a, + void (*func)(TCGv, TCGv, TCGv, TCGArg, MemOp), + MemOp mop) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + TCGv addr = gpr_src(ctx, a->rj, EXT_NONE); + TCGv val = gpr_src(ctx, a->rk, EXT_NONE); + + if ((a->rd != 0) && ((a->rj == a->rd) || (a->rk == a->rd))) { + qemu_log_mask(LOG_GUEST_ERROR, + "Warning: source register overlaps destination register" + "in atomic insn at pc=0x" TARGET_FMT_lx "\n", + ctx->base.pc_next - 4); + return false; + } + + func(dest, addr, val, ctx->mem_idx, mop); + return true; +} + +static bool gen_am_db(DisasContext *ctx, arg_fmt_rdrjrk *a, + void (*func)(TCGv, TCGv, TCGv, TCGArg, MemOp), + MemOp mop) +{ + TCGv dest = gpr_dst(ctx, a->rd, EXT_NONE); + TCGv addr = gpr_src(ctx, a->rj, EXT_NONE); + TCGv val = gpr_src(ctx, a->rk, EXT_NONE); + + if ((a->rd != 0) && ((a->rj == a->rd) || (a->rk == a->rd))) { + qemu_log_mask(LOG_GUEST_ERROR, + "Warning: source register overlaps destination register" + "in atomic insn at pc=0x" TARGET_FMT_lx "\n", + ctx->base.pc_next - 4); + return false; + } + + gen_loongarch_sync(0x10); + func(dest, addr, val, ctx->mem_idx, mop); + + return true; +} + +TRANS(ll_w, gen_ll, tcg_gen_qemu_ld32s) +TRANS(sc_w, gen_sc, MO_TESL) +TRANS(ll_d, gen_ll, tcg_gen_qemu_ld64) +TRANS(sc_d, gen_sc, MO_TEQ) +TRANS(amswap_w, gen_am, tcg_gen_atomic_xchg_tl, MO_TESL) +TRANS(amswap_d, gen_am, tcg_gen_atomic_xchg_tl, MO_TEQ) +TRANS(amadd_w, gen_am, tcg_gen_atomic_fetch_add_tl, MO_TESL) +TRANS(amadd_d, gen_am, tcg_gen_atomic_fetch_add_tl, MO_TEQ) +TRANS(amand_w, gen_am, tcg_gen_atomic_fetch_and_tl, MO_TESL) +TRANS(amand_d, gen_am, tcg_gen_atomic_fetch_and_tl, MO_TEQ) +TRANS(amor_w, gen_am, tcg_gen_atomic_fetch_or_tl, MO_TESL) +TRANS(amor_d, gen_am, tcg_gen_atomic_fetch_or_tl, MO_TEQ) +TRANS(amxor_w, gen_am, tcg_gen_atomic_fetch_xor_tl, MO_TESL) +TRANS(amxor_d, gen_am, tcg_gen_atomic_fetch_xor_tl, MO_TEQ) +TRANS(ammax_w, gen_am, tcg_gen_atomic_fetch_smax_tl, MO_TESL) +TRANS(ammax_d, gen_am, tcg_gen_atomic_fetch_smax_tl, MO_TEQ) +TRANS(ammin_w, gen_am, tcg_gen_atomic_fetch_smin_tl, MO_TESL) +TRANS(ammin_d, gen_am, tcg_gen_atomic_fetch_smin_tl, MO_TEQ) +TRANS(ammax_wu, gen_am, tcg_gen_atomic_fetch_umax_tl, MO_TESL) +TRANS(ammax_du, gen_am, tcg_gen_atomic_fetch_umax_tl, MO_TEQ) +TRANS(ammin_wu, gen_am, tcg_gen_atomic_fetch_umin_tl, MO_TESL) +TRANS(ammin_du, gen_am, tcg_gen_atomic_fetch_umin_tl, MO_TEQ) +TRANS(amswap_db_w, gen_am_db, tcg_gen_atomic_xchg_tl, MO_TESL) +TRANS(amswap_db_d, gen_am_db, tcg_gen_atomic_xchg_tl, MO_TEQ) +TRANS(amadd_db_w, gen_am_db, tcg_gen_atomic_fetch_add_tl, MO_TESL) +TRANS(amadd_db_d, gen_am_db, tcg_gen_atomic_fetch_add_tl, MO_TEQ) +TRANS(amand_db_w, gen_am_db, tcg_gen_atomic_fetch_and_tl, MO_TESL) +TRANS(amand_db_d, gen_am_db, tcg_gen_atomic_fetch_and_tl, MO_TEQ) +TRANS(amor_db_w, gen_am_db, tcg_gen_atomic_fetch_or_tl, MO_TESL) +TRANS(amor_db_d, gen_am_db, tcg_gen_atomic_fetch_or_tl, MO_TEQ) +TRANS(amxor_db_w, gen_am_db, tcg_gen_atomic_fetch_xor_tl, MO_TESL) +TRANS(amxor_db_d, gen_am_db, tcg_gen_atomic_fetch_xor_tl, MO_TEQ) +TRANS(ammax_db_w, gen_am_db, tcg_gen_atomic_fetch_smax_tl, MO_TESL) +TRANS(ammax_db_d, gen_am_db, tcg_gen_atomic_fetch_smax_tl, MO_TEQ) +TRANS(ammin_db_w, gen_am_db, tcg_gen_atomic_fetch_smin_tl, MO_TESL) +TRANS(ammin_db_d, gen_am_db, tcg_gen_atomic_fetch_smin_tl, MO_TEQ) +TRANS(ammax_db_wu, gen_am_db, tcg_gen_atomic_fetch_umax_tl, MO_TESL) +TRANS(ammax_db_du, gen_am_db, tcg_gen_atomic_fetch_umax_tl, MO_TEQ) +TRANS(ammin_db_wu, gen_am_db, tcg_gen_atomic_fetch_umin_tl, MO_TESL) +TRANS(ammin_db_du, gen_am_db, tcg_gen_atomic_fetch_umin_tl, MO_TEQ) diff --git a/target/loongarch/insns.decode b/target/loongarch/insns.decode index 08fd232..574c055 100644 --- a/target/loongarch/insns.decode +++ b/target/loongarch/insns.decode @@ -216,3 +216,47 @@ stle_b 0011 10000111 11100 ..... ..... ..... @fmt_rdrjrk stle_h 0011 10000111 11101 ..... ..... ..... @fmt_rdrjrk stle_w 0011 10000111 11110 ..... ..... ..... @fmt_rdrjrk stle_d 0011 10000111 11111 ..... ..... ..... @fmt_rdrjrk + +# +# Fixed point atomic instruction +# +ll_w 0010 0000 .............. ..... ..... @fmt_rdrjsi14 +sc_w 0010 0001 .............. ..... ..... @fmt_rdrjsi14 +ll_d 0010 0010 .............. ..... ..... @fmt_rdrjsi14 +sc_d 0010 0011 .............. ..... ..... @fmt_rdrjsi14 +amswap_w 0011 10000110 00000 ..... ..... ..... @fmt_rdrjrk +amswap_d 0011 10000110 00001 ..... ..... ..... @fmt_rdrjrk +amadd_w 0011 10000110 00010 ..... ..... ..... @fmt_rdrjrk +amadd_d 0011 10000110 00011 ..... ..... ..... @fmt_rdrjrk +amand_w 0011 10000110 00100 ..... ..... ..... @fmt_rdrjrk +amand_d 0011 10000110 00101 ..... ..... ..... @fmt_rdrjrk +amor_w 0011 10000110 00110 ..... ..... ..... @fmt_rdrjrk +amor_d 0011 10000110 00111 ..... ..... ..... @fmt_rdrjrk +amxor_w 0011 10000110 01000 ..... ..... ..... @fmt_rdrjrk +amxor_d 0011 10000110 01001 ..... ..... ..... @fmt_rdrjrk +ammax_w 0011 10000110 01010 ..... ..... ..... @fmt_rdrjrk +ammax_d 0011 10000110 01011 ..... ..... ..... @fmt_rdrjrk +ammin_w 0011 10000110 01100 ..... ..... ..... @fmt_rdrjrk +ammin_d 0011 10000110 01101 ..... ..... ..... @fmt_rdrjrk +ammax_wu 0011 10000110 01110 ..... ..... ..... @fmt_rdrjrk +ammax_du 0011 10000110 01111 ..... ..... ..... @fmt_rdrjrk +ammin_wu 0011 10000110 10000 ..... ..... ..... @fmt_rdrjrk +ammin_du 0011 10000110 10001 ..... ..... ..... @fmt_rdrjrk +amswap_db_w 0011 10000110 10010 ..... ..... ..... @fmt_rdrjrk +amswap_db_d 0011 10000110 10011 ..... ..... ..... @fmt_rdrjrk +amadd_db_w 0011 10000110 10100 ..... ..... ..... @fmt_rdrjrk +amadd_db_d 0011 10000110 10101 ..... ..... ..... @fmt_rdrjrk +amand_db_w 0011 10000110 10110 ..... ..... ..... @fmt_rdrjrk +amand_db_d 0011 10000110 10111 ..... ..... ..... @fmt_rdrjrk +amor_db_w 0011 10000110 11000 ..... ..... ..... @fmt_rdrjrk +amor_db_d 0011 10000110 11001 ..... ..... ..... @fmt_rdrjrk +amxor_db_w 0011 10000110 11010 ..... ..... ..... @fmt_rdrjrk +amxor_db_d 0011 10000110 11011 ..... ..... ..... @fmt_rdrjrk +ammax_db_w 0011 10000110 11100 ..... ..... ..... @fmt_rdrjrk +ammax_db_d 0011 10000110 11101 ..... ..... ..... @fmt_rdrjrk +ammin_db_w 0011 10000110 11110 ..... ..... ..... @fmt_rdrjrk +ammin_db_d 0011 10000110 11111 ..... ..... ..... @fmt_rdrjrk +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 diff --git a/target/loongarch/translate.c b/target/loongarch/translate.c index 807cb54..1ec3be6 100644 --- a/target/loongarch/translate.c +++ b/target/loongarch/translate.c @@ -174,6 +174,7 @@ static void gen_set_gpr(int reg_num, TCGv t, DisasExtend dst_ext) #include "insn_trans/trans_shift.c" #include "insn_trans/trans_bit.c" #include "insn_trans/trans_memory.c" +#include "insn_trans/trans_atomic.c" static void loongarch_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs) {