From nobody Wed Feb 11 00:36:45 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1770692230959477.0862226621613; Mon, 9 Feb 2026 18:57:10 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vpduz-0002RV-9l; Mon, 09 Feb 2026 21:56:01 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vpdux-0002QF-2f for qemu-devel@nongnu.org; Mon, 09 Feb 2026 21:55:59 -0500 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vpdut-0003wk-Tm for qemu-devel@nongnu.org; Mon, 09 Feb 2026 21:55:58 -0500 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8AxScI1noppeUoRAA--.55375S3; Tue, 10 Feb 2026 10:55:49 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by front1 (Coremail) with SMTP id qMiowJDxD8Mtnoppm59DAA--.61278S3; Tue, 10 Feb 2026 10:55:48 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: Jiajie Chen Subject: [PULL 1/7] target/loongarch: Require atomics to be aligned Date: Tue, 10 Feb 2026 10:30:34 +0800 Message-Id: <20260210023040.3507338-2-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20260210023040.3507338-1-gaosong@loongson.cn> References: <20260210023040.3507338-1-gaosong@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJDxD8Mtnoppm59DAA--.61278S3 X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=114.242.206.163; envelope-from=gaosong@loongson.cn; helo=mail.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, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=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: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1770692233503154100 Content-Type: text/plain; charset="utf-8" From: Jiajie Chen Currently, all atomic instructions in LoongArch require the address to be aligned. Signed-off-by: Jiajie Chen Reviewed-by: Song Gao Signed-off-by: Song Gao --- target/loongarch/tcg/insn_trans/trans_atomic.c.inc | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/target/loongarch/tcg/insn_trans/trans_atomic.c.inc b/target/lo= ongarch/tcg/insn_trans/trans_atomic.c.inc index a1de389e51..b8c962b65a 100644 --- a/target/loongarch/tcg/insn_trans/trans_atomic.c.inc +++ b/target/loongarch/tcg/insn_trans/trans_atomic.c.inc @@ -9,7 +9,7 @@ static bool gen_ll(DisasContext *ctx, arg_rr_i *a, MemOp mo= p) TCGv src1 =3D gpr_src(ctx, a->rj, EXT_NONE); TCGv t0 =3D make_address_i(ctx, src1, a->imm); =20 - tcg_gen_qemu_ld_i64(t1, t0, ctx->mem_idx, mop); + tcg_gen_qemu_ld_i64(t1, t0, ctx->mem_idx, mop | MO_ALIGN); tcg_gen_st_tl(t0, tcg_env, offsetof(CPULoongArchState, lladdr)); tcg_gen_st_tl(t1, tcg_env, offsetof(CPULoongArchState, llval)); gen_set_gpr(a->rd, t1, EXT_NONE); @@ -37,7 +37,7 @@ static bool gen_sc(DisasContext *ctx, arg_rr_i *a, MemOp = mop) tcg_gen_mov_tl(val, src2); /* generate cmpxchg */ tcg_gen_atomic_cmpxchg_tl(t0, cpu_lladdr, cpu_llval, - val, ctx->mem_idx, mop); + val, ctx->mem_idx, mop | MO_ALIGN); tcg_gen_setcond_tl(TCG_COND_EQ, dest, t0, cpu_llval); gen_set_label(done); gen_set_gpr(a->rd, dest, EXT_NONE); @@ -63,7 +63,7 @@ static bool gen_am(DisasContext *ctx, arg_rrr *a, =20 addr =3D make_address_i(ctx, addr, 0); =20 - func(dest, addr, val, ctx->mem_idx, mop); + func(dest, addr, val, ctx->mem_idx, mop | MO_ALIGN); gen_set_gpr(a->rd, dest, EXT_NONE); =20 return true; --=20 2.52.0