From nobody Wed Feb 11 00:56:05 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 1737027070918153.66021792753418; Thu, 16 Jan 2025 03:31:10 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tYO5U-0007dv-Li; Thu, 16 Jan 2025 06:31:00 -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 1tYO5D-0007d2-Nm for qemu-devel@nongnu.org; Thu, 16 Jan 2025 06:30:43 -0500 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tYO59-0005MI-QT for qemu-devel@nongnu.org; Thu, 16 Jan 2025 06:30:42 -0500 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8Dx_67a7YhnzmBkAA--.26610S3; Thu, 16 Jan 2025 19:30:34 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowMAxfcXZ7YhneOQkAA--.11212S5; Thu, 16 Jan 2025 19:30:33 +0800 (CST) From: Bibo Mao To: Song Gao Cc: qemu-devel@nongnu.org Subject: [PATCH v2 3/6] target/loongarch: Add common header file for CSR register Date: Thu, 16 Jan 2025 19:30:29 +0800 Message-Id: <20250116113032.599899-4-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250116113032.599899-1-maobibo@loongson.cn> References: <20250116113032.599899-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowMAxfcXZ7YhneOQkAA--.11212S5 X-CM-SenderInfo: xpdruxter6z05rqj20fqof0/ 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=maobibo@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: 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: 1737027073184019000 Content-Type: text/plain; charset="utf-8" Common header file csr.h is added here, it can be used by both TCG mode and kvm mode. Macro CONFIG_TCG is used for TCG specific CSR function because of function parameter such as TCGv and TCGv_ptr. Signed-off-by: Bibo Mao --- target/loongarch/csr.h | 25 +++++++++++++ .../tcg/insn_trans/trans_privileged.c.inc | 37 ++++++++----------- 2 files changed, 40 insertions(+), 22 deletions(-) create mode 100644 target/loongarch/csr.h diff --git a/target/loongarch/csr.h b/target/loongarch/csr.h new file mode 100644 index 0000000000..20d4bf5dc7 --- /dev/null +++ b/target/loongarch/csr.h @@ -0,0 +1,25 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (c) 2025 Loongson Technology Corporation Limited + */ + +#ifndef TARGET_LOONGARCH_CSR_H +#define TARGET_LOONGARCH_CSR_H + +#include "cpu-csr.h" + +typedef void (*GenCSRFunc)(void); +enum { + CSRFL_READONLY =3D (1 << 0), + CSRFL_EXITTB =3D (1 << 1), + CSRFL_IO =3D (1 << 2), +}; + +typedef struct { + int offset; + int flags; + GenCSRFunc readfn; + GenCSRFunc writefn; +} CSRInfo; + +#endif /* TARGET_LOONGARCH_CSR_H */ diff --git a/target/loongarch/tcg/insn_trans/trans_privileged.c.inc b/targe= t/loongarch/tcg/insn_trans/trans_privileged.c.inc index b90e14cd2a..87506ec0dc 100644 --- a/target/loongarch/tcg/insn_trans/trans_privileged.c.inc +++ b/target/loongarch/tcg/insn_trans/trans_privileged.c.inc @@ -5,7 +5,7 @@ * LoongArch translation routines for the privileged instructions. */ =20 -#include "cpu-csr.h" +#include "csr.h" =20 #ifdef CONFIG_USER_ONLY =20 @@ -45,19 +45,6 @@ GEN_FALSE_TRANS(idle) typedef void (*GenCSRRead)(TCGv dest, TCGv_ptr env); typedef void (*GenCSRWrite)(TCGv dest, TCGv_ptr env, TCGv src); =20 -typedef struct { - int offset; - int flags; - GenCSRRead readfn; - GenCSRWrite writefn; -} CSRInfo; - -enum { - CSRFL_READONLY =3D (1 << 0), - CSRFL_EXITTB =3D (1 << 1), - CSRFL_IO =3D (1 << 2), -}; - #define CSR_OFF_FUNCS(NAME, FL, RD, WR) \ [LOONGARCH_CSR_##NAME] =3D { \ .offset =3D offsetof(CPULoongArchState, CSR_##NAME), \ @@ -184,8 +171,8 @@ static bool set_csr_trans_func(unsigned int csr_num, Ge= nCSRRead readfn, return false; } =20 - csr->readfn =3D readfn; - csr->writefn =3D writefn; + csr->readfn =3D (GenCSRFunc)readfn; + csr->writefn =3D (GenCSRFunc)writefn; return true; } =20 @@ -222,6 +209,7 @@ static bool trans_csrrd(DisasContext *ctx, arg_csrrd *a) { TCGv dest; const CSRInfo *csr; + GenCSRRead readfn; =20 if (check_plv(ctx)) { return false; @@ -233,8 +221,9 @@ static bool trans_csrrd(DisasContext *ctx, arg_csrrd *a) } else { check_csr_flags(ctx, csr, false); dest =3D gpr_dst(ctx, a->rd, EXT_NONE); - if (csr->readfn) { - csr->readfn(dest, tcg_env); + readfn =3D (GenCSRRead)csr->readfn; + if (readfn) { + readfn(dest, tcg_env); } else { tcg_gen_ld_tl(dest, tcg_env, csr->offset); } @@ -247,6 +236,7 @@ static bool trans_csrwr(DisasContext *ctx, arg_csrwr *a) { TCGv dest, src1; const CSRInfo *csr; + GenCSRWrite writefn; =20 if (check_plv(ctx)) { return false; @@ -262,9 +252,10 @@ static bool trans_csrwr(DisasContext *ctx, arg_csrwr *= a) return false; } src1 =3D gpr_src(ctx, a->rd, EXT_NONE); - if (csr->writefn) { + writefn =3D (GenCSRWrite)csr->writefn; + if (writefn) { dest =3D gpr_dst(ctx, a->rd, EXT_NONE); - csr->writefn(dest, tcg_env, src1); + writefn(dest, tcg_env, src1); } else { dest =3D tcg_temp_new(); tcg_gen_ld_tl(dest, tcg_env, csr->offset); @@ -278,6 +269,7 @@ static bool trans_csrxchg(DisasContext *ctx, arg_csrxch= g *a) { TCGv src1, mask, oldv, newv, temp; const CSRInfo *csr; + GenCSRWrite writefn; =20 if (check_plv(ctx)) { return false; @@ -308,8 +300,9 @@ static bool trans_csrxchg(DisasContext *ctx, arg_csrxch= g *a) tcg_gen_andc_tl(temp, oldv, mask); tcg_gen_or_tl(newv, newv, temp); =20 - if (csr->writefn) { - csr->writefn(oldv, tcg_env, newv); + writefn =3D (GenCSRWrite)csr->writefn; + if (writefn) { + writefn(oldv, tcg_env, newv); } else { tcg_gen_st_tl(newv, tcg_env, csr->offset); } --=20 2.39.3