From patchwork Thu Sep 17 03:20:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ying Fang X-Patchwork-Id: 305189 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=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 55A6CC43461 for ; Thu, 17 Sep 2020 03:25:30 +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 EAA30206B5 for ; Thu, 17 Sep 2020 03:25:29 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EAA30206B5 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56236 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kIkY4-0002FS-Tm for qemu-devel@archiver.kernel.org; Wed, 16 Sep 2020 23:25:29 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47890) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kIkUP-0004zU-9w; Wed, 16 Sep 2020 23:21:41 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:4748 helo=huawei.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kIkUM-0004RS-J7; Wed, 16 Sep 2020 23:21:40 -0400 Received: from DGGEMS406-HUB.china.huawei.com (unknown [172.30.72.58]) by Forcepoint Email with ESMTP id F287774951387E5CE419; Thu, 17 Sep 2020 11:21:13 +0800 (CST) Received: from localhost (10.174.185.104) by DGGEMS406-HUB.china.huawei.com (10.3.19.206) with Microsoft SMTP Server id 14.3.487.0; Thu, 17 Sep 2020 11:21:04 +0800 From: Ying Fang To: Subject: [RFC PATCH 09/12] target/arm/cpu: Add CPU cache description for arm Date: Thu, 17 Sep 2020 11:20:30 +0800 Message-ID: <20200917032033.2020-10-fangying1@huawei.com> X-Mailer: git-send-email 2.26.0.windows.1 In-Reply-To: <20200917032033.2020-1-fangying1@huawei.com> References: <20200917032033.2020-1-fangying1@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.174.185.104] X-CFilter-Loop: Reflected Received-SPF: pass client-ip=45.249.212.191; envelope-from=fangying1@huawei.com; helo=huawei.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/16 23:21:09 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, 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, drjones@redhat.com, zhang.zhanghailiang@huawei.com, alex.chen@huawei.com, shannon.zhaosl@gmail.com, qemu-arm@nongnu.org, alistair.francis@wdc.com, Ying Fang , imammedo@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Add the CPUCacheInfo structure to hold CPU cache information for ARM cpus. A classic three level cache topology is used here. The default cache capacity is given and userspace can overwrite these values. Signed-off-by: Ying Fang --- target/arm/cpu.c | 42 ++++++++++++++++++++++++++++++++++++++++++ target/arm/cpu.h | 27 +++++++++++++++++++++++++++ 2 files changed, 69 insertions(+) diff --git a/target/arm/cpu.c b/target/arm/cpu.c index c179e0752d..efa8e1974a 100644 --- a/target/arm/cpu.c +++ b/target/arm/cpu.c @@ -27,6 +27,7 @@ #include "qapi/visitor.h" #include "cpu.h" #include "internals.h" +#include "qemu/units.h" #include "exec/exec-all.h" #include "hw/qdev-properties.h" #if !defined(CONFIG_USER_ONLY) @@ -998,6 +999,45 @@ uint64_t arm_cpu_mp_affinity(int idx, uint8_t clustersz) return (Aff1 << ARM_AFF1_SHIFT) | Aff0; } +static CPUCaches default_cache_info = { + .l1d_cache = &(CPUCacheInfo) { + .type = DATA_CACHE, + .level = 1, + .size = 64 * KiB, + .line_size = 64, + .associativity = 4, + .sets = 256, + .attributes = 0x02, + }, + .l1i_cache = &(CPUCacheInfo) { + .type = INSTRUCTION_CACHE, + .level = 1, + .size = 64 * KiB, + .line_size = 64, + .associativity = 4, + .sets = 256, + .attributes = 0x04, + }, + .l2_cache = &(CPUCacheInfo) { + .type = UNIFIED_CACHE, + .level = 2, + .size = 512 * KiB, + .line_size = 64, + .associativity = 8, + .sets = 1024, + .attributes = 0x0a, + }, + .l3_cache = &(CPUCacheInfo) { + .type = UNIFIED_CACHE, + .level = 3, + .size = 65536 * KiB, + .line_size = 64, + .associativity = 15, + .sets = 2048, + .attributes = 0x0a, + }, +}; + static void cpreg_hashtable_data_destroy(gpointer data) { /* @@ -1835,6 +1875,8 @@ static void arm_cpu_realizefn(DeviceState *dev, Error **errp) } } + cpu->caches = default_cache_info; + qemu_init_vcpu(cs); cpu_reset(cs); diff --git a/target/arm/cpu.h b/target/arm/cpu.h index a1c7d8ebae..e9e3817e20 100644 --- a/target/arm/cpu.h +++ b/target/arm/cpu.h @@ -745,6 +745,30 @@ typedef enum ARMPSCIState { typedef struct ARMISARegisters ARMISARegisters; +/* Cache information type */ +enum CacheType { + DATA_CACHE, + INSTRUCTION_CACHE, + UNIFIED_CACHE +}; + +typedef struct CPUCacheInfo { + enum CacheType type; /* Cache Type*/ + uint8_t level; + uint32_t size; /* Size in bytes */ + uint16_t line_size; /* Line size in bytes */ + uint8_t associativity; /* Cache associativity */ + uint32_t sets; /* Number of sets */ + uint8_t attributes; /* Cache attributest */ +} CPUCacheInfo; + +typedef struct CPUCaches { + CPUCacheInfo *l1d_cache; + CPUCacheInfo *l1i_cache; + CPUCacheInfo *l2_cache; + CPUCacheInfo *l3_cache; +} CPUCaches; + /** * ARMCPU: * @env: #CPUARMState @@ -986,6 +1010,9 @@ struct ARMCPU { /* Generic timer counter frequency, in Hz */ uint64_t gt_cntfrq_hz; + + /* CPU cache information */ + CPUCaches caches; }; unsigned int gt_cntfrq_period_ns(ARMCPU *cpu);