From nobody Fri Nov 14 19:47:00 2025 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 1761221358218434.7969272116902; Thu, 23 Oct 2025 05:09:18 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vBu6q-0006Bq-Ly; Thu, 23 Oct 2025 08:08:00 -0400 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 1vBu6P-000665-7D for qemu-devel@nongnu.org; Thu, 23 Oct 2025 08:07:36 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vBu6I-0004vZ-Ux for qemu-devel@nongnu.org; Thu, 23 Oct 2025 08:07:32 -0400 Received: from loongson.cn (unknown [10.2.5.213]) by gateway (Coremail) with SMTP id _____8BxH9N7Gvpocb0ZAA--.55933S3; Thu, 23 Oct 2025 20:07:23 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.213]) by front1 (Coremail) with SMTP id qMiowJDx_8NuGvporJkDAQ--.47140S13; Thu, 23 Oct 2025 20:07:23 +0800 (CST) From: Bibo Mao To: qemu-devel@nongnu.org Cc: Song Gao Subject: [PULL 11/14] target/loongarch: Add common interface update_tlb_index() Date: Thu, 23 Oct 2025 20:07:07 +0800 Message-Id: <20251023120710.3086556-12-maobibo@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20251023120710.3086556-1-maobibo@loongson.cn> References: <20251023120710.3086556-1-maobibo@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJDx_8NuGvporJkDAQ--.47140S13 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: 1761221360983154100 Content-Type: text/plain; charset="utf-8" Common API update_tlb_index() is added here, it is to update TLB entry with specified index. It is called by helper_tlbwr() now, also it can be used by HW PTW when adding new TLB entry. Signed-off-by: Bibo Mao Reviewed-by: Song Gao --- target/loongarch/tcg/tlb_helper.c | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) diff --git a/target/loongarch/tcg/tlb_helper.c b/target/loongarch/tcg/tlb_h= elper.c index 8d962ce3e3..92f89841b0 100644 --- a/target/loongarch/tcg/tlb_helper.c +++ b/target/loongarch/tcg/tlb_helper.c @@ -350,21 +350,14 @@ void helper_tlbrd(CPULoongArchState *env) } } =20 -void helper_tlbwr(CPULoongArchState *env) +static void update_tlb_index(CPULoongArchState *env, MMUContext *context, + int index) { - int index =3D FIELD_EX64(env->CSR_TLBIDX, CSR_TLBIDX, INDEX); LoongArchTLB *old, new =3D {}; bool skip_inv =3D false, tlb_v0, tlb_v1; - MMUContext context; =20 old =3D env->tlb + index; - if (FIELD_EX64(env->CSR_TLBIDX, CSR_TLBIDX, NE)) { - invalidate_tlb(env, index); - return; - } - - sptw_prepare_context(env, &context); - fill_tlb_entry(env, &new, &context); + fill_tlb_entry(env, &new, context); /* Check whether ASID/VPPN is the same */ if (old->tlb_misc =3D=3D new.tlb_misc) { /* Check whether both even/odd pages is the same or invalid */ @@ -384,6 +377,20 @@ void helper_tlbwr(CPULoongArchState *env) *old =3D new; } =20 +void helper_tlbwr(CPULoongArchState *env) +{ + int index =3D FIELD_EX64(env->CSR_TLBIDX, CSR_TLBIDX, INDEX); + MMUContext context; + + if (FIELD_EX64(env->CSR_TLBIDX, CSR_TLBIDX, NE)) { + invalidate_tlb(env, index); + return; + } + + sptw_prepare_context(env, &context); + update_tlb_index(env, &context, index); +} + static int get_tlb_random_index(CPULoongArchState *env, vaddr addr, int pagesize) { --=20 2.43.5