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[209.51.188.17]) by mx.google.com with ESMTPS id m15-20020a05622a054f00b004032cc7e439si5693075qtx.471.2023.08.22.00.10.52 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 22 Aug 2023 00:10:53 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b=krITlh8T; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qYLXC-0002D5-Er; Tue, 22 Aug 2023 03:10:38 -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 1qYLX8-0002CB-IB for qemu-devel@nongnu.org; Tue, 22 Aug 2023 03:10:34 -0400 Received: from mail-wr1-x435.google.com ([2a00:1450:4864:20::435]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qYLX6-0002Cn-3m for qemu-devel@nongnu.org; Tue, 22 Aug 2023 03:10:34 -0400 Received: by mail-wr1-x435.google.com with SMTP id ffacd0b85a97d-317c3ac7339so3651833f8f.0 for ; Tue, 22 Aug 2023 00:10:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1692688230; x=1693293030; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=zxHqKmOyuuNOftyTGwcwCJthKGUr1Tn3UywBr6PkJwE=; b=krITlh8T942g2eMS96hHB/szGA6NVhLUhSRHGN2v0bOeNGKsagALclrPPAoRo1gwto 1nrhaSrIOSieU0B7nZWzmIQsCwxadDVNg6/6lnWuU4SHYqZU3vyJTOBaDo/O0P0cdpiU DnI1EGrFRnwgVn0w4ZfpOfm8D4mvQKMDItL7/TrByBRX8A76YSPG4upsffUtBj4JL/SX DbN4cruT7NJuZoJraUF1r+rUP9JAGJwR8Gb2c9RG/kzDJkFUl6gF2p92LipsH9PDYfS9 N332W2xIIVvl3rmwq9xxCyZZe6n25ukhDS6QhA2Z4hpSs5JgxLXTudee74HgqPeANcqg e8WQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692688230; x=1693293030; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=zxHqKmOyuuNOftyTGwcwCJthKGUr1Tn3UywBr6PkJwE=; b=ex3lI8iYFcf5PMAQxxRjvMcyzvn4ql/W/JT1jsyTmHoyzFhaA2i3Y+Tjhyvg5SDJFi qiW/4hsDVif7yJm0YMQQj2nUuulslxmyVCZDR8yw2ZVPs10Dy+jinJUgVtx4xEcb22JE aJM1zZPVIDdCiN7dnPDG4w1jQxeSgPi3euJDV9gXZX7Yl/1qBu6qbJ1OAE7y/R0RSNv3 LzStx34Qh3zRNMw8Pc+tXQG9yucEAPCniwPCpxozSi6whP8inChb91j3VB0WSFnH3DwB CA6xIMG38oif5FIK9MH8YFG1CsFvxP6RekxZQQhg6bqO7qatuVXJwO/hdEbfYvqMQkeb lIqA== X-Gm-Message-State: AOJu0YzIVwYRajLnbFMsq88iv6s9gkFz0hnytObuW47W9l2tJdIABA1m o+yoVQ9Kt2Mc7e/rDW0cjRuIFIudrctTGVg3EufbiA== X-Received: by 2002:a5d:5910:0:b0:319:7d83:7ace with SMTP id v16-20020a5d5910000000b003197d837acemr6615919wrd.35.1692688229921; Tue, 22 Aug 2023 00:10:29 -0700 (PDT) Received: from localhost.localdomain ([37.19.214.4]) by smtp.gmail.com with ESMTPSA id w14-20020adfec4e000000b003180822cf8fsm15095146wrn.1.2023.08.22.00.10.28 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Tue, 22 Aug 2023 00:10:29 -0700 (PDT) From: =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= To: qemu-devel@nongnu.org, Song Gao Cc: Huacai Chen , Jiajie Chen , Xiaojuan Yang , Richard Henderson Subject: [PATCH v5 02/19] target/loongarch: Support LoongArch32 DMW Date: Tue, 22 Aug 2023 09:09:55 +0200 Message-ID: <20230822071013.34884-3-philmd@linaro.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230822071013.34884-1-philmd@linaro.org> References: <20230822071013.34884-1-philmd@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::435; envelope-from=philmd@linaro.org; helo=mail-wr1-x435.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org From: Jiajie Chen LA32 uses a different encoding for CSR.DMW and a new direct mapping mechanism. Signed-off-by: Jiajie Chen Reviewed-by: Richard Henderson Signed-off-by: Song Gao Message-ID: <20230822032724.1353391-3-gaosong@loongson.cn> --- target/loongarch/cpu-csr.h | 7 +++---- target/loongarch/tlb_helper.c | 26 +++++++++++++++++++++++--- 2 files changed, 26 insertions(+), 7 deletions(-) diff --git a/target/loongarch/cpu-csr.h b/target/loongarch/cpu-csr.h index 48ed2e0632..b93f99a9ef 100644 --- a/target/loongarch/cpu-csr.h +++ b/target/loongarch/cpu-csr.h @@ -188,10 +188,9 @@ FIELD(CSR_DMW, PLV1, 1, 1) FIELD(CSR_DMW, PLV2, 2, 1) FIELD(CSR_DMW, PLV3, 3, 1) FIELD(CSR_DMW, MAT, 4, 2) -FIELD(CSR_DMW, VSEG, 60, 4) - -#define dmw_va2pa(va) \ - (va & MAKE_64BIT_MASK(0, TARGET_VIRT_ADDR_SPACE_BITS)) +FIELD(CSR_DMW_32, PSEG, 25, 3) +FIELD(CSR_DMW_32, VSEG, 29, 3) +FIELD(CSR_DMW_64, VSEG, 60, 4) /* Debug CSRs */ #define LOONGARCH_CSR_DBG 0x500 /* debug config */ diff --git a/target/loongarch/tlb_helper.c b/target/loongarch/tlb_helper.c index cef10e2257..1f8e7911c7 100644 --- a/target/loongarch/tlb_helper.c +++ b/target/loongarch/tlb_helper.c @@ -173,6 +173,18 @@ static int loongarch_map_address(CPULoongArchState *env, hwaddr *physical, return TLBRET_NOMATCH; } +static hwaddr dmw_va2pa(CPULoongArchState *env, target_ulong va, + target_ulong dmw) +{ + if (is_la64(env)) { + return va & TARGET_VIRT_MASK; + } else { + uint32_t pseg = FIELD_EX32(dmw, CSR_DMW_32, PSEG); + return (va & MAKE_64BIT_MASK(0, R_CSR_DMW_32_VSEG_SHIFT)) | \ + (pseg << R_CSR_DMW_32_VSEG_SHIFT); + } +} + static int get_physical_address(CPULoongArchState *env, hwaddr *physical, int *prot, target_ulong address, MMUAccessType access_type, int mmu_idx) @@ -192,12 +204,20 @@ static int get_physical_address(CPULoongArchState *env, hwaddr *physical, } plv = kernel_mode | (user_mode << R_CSR_DMW_PLV3_SHIFT); - base_v = address >> R_CSR_DMW_VSEG_SHIFT; + if (is_la64(env)) { + base_v = address >> R_CSR_DMW_64_VSEG_SHIFT; + } else { + base_v = address >> R_CSR_DMW_32_VSEG_SHIFT; + } /* Check direct map window */ for (int i = 0; i < 4; i++) { - base_c = FIELD_EX64(env->CSR_DMW[i], CSR_DMW, VSEG); + if (is_la64(env)) { + base_c = FIELD_EX64(env->CSR_DMW[i], CSR_DMW_64, VSEG); + } else { + base_c = FIELD_EX64(env->CSR_DMW[i], CSR_DMW_32, VSEG); + } if ((plv & env->CSR_DMW[i]) && (base_c == base_v)) { - *physical = dmw_va2pa(address); + *physical = dmw_va2pa(env, address, env->CSR_DMW[i]); *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC; return TLBRET_MATCH; }