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[209.51.188.17]) by mx.google.com with ESMTPS id l10si3027065vsm.144.2021.07.08.12.50.11 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 08 Jul 2021 12:50:11 -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=fail header.i=@linaro.org header.s=google header.b=jRMaDYlz; 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=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1]:43336 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m1a2E-0008B0-8I for patch@linaro.org; Thu, 08 Jul 2021 15:50:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51794) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m1ZWg-0002p1-Dg for qemu-devel@nongnu.org; Thu, 08 Jul 2021 15:17:34 -0400 Received: from mail-wm1-x330.google.com ([2a00:1450:4864:20::330]:33701) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1m1ZWd-0007Z4-8P for qemu-devel@nongnu.org; Thu, 08 Jul 2021 15:17:34 -0400 Received: by mail-wm1-x330.google.com with SMTP id g8-20020a1c9d080000b02901f13dd1672aso5413840wme.0 for ; Thu, 08 Jul 2021 12:17:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=eT5up0kian05/LgF6zUXsmuwoQua1u5bvZFkNOmLsvE=; b=jRMaDYlz+3LwvnfLdgSG0hEiOhcpv/nRCUHNqeTmuX+n4sf5GzhUFnM70kQqEdT0p+ LqUN6KSNKprNyfXdaan9o8Dvk+VNQeZO8Omc5z49ekVYFW474oHgYfbyniSVHzB9UZhk phbJkdVfLculrMC+tUVrqWfJqIE2yqcL/taJfUGOXl1iY788/a6XKi8KJZXGSbBG6xwo tB/wwIZfaaFpRsMslPBnE9dd7ISDbXc3q+aEdo/JVayAy/PawtiCGPL8TbnMtqeGOsEw 7nOv7dI456zmhdgqSENWtBvGl5fzu6zOtOJQnUV6ylv2gShVN32Qo0ej6rkCDmfkGdCf L7eQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=eT5up0kian05/LgF6zUXsmuwoQua1u5bvZFkNOmLsvE=; b=J37ZvKoUofPGGH+uXAgYj97Eb0MlWEosA7+U0HgJQjJbYoRx36FDTrA7z1kHAsnhZU N4vUt+GiSVsQo2DNw6Sg6xyRO/6w3LkKn+z04Yi5MHWjCTLUmfsmqm7ZAfJOq4vfG3Av WKjD+yguC+SIM19RC8fJiRevNffA5C7Y3z5gxb1//EMLOmufMvbUzCvRJhFrvc8iHyqK k4TvKeqI3/8tI+sW0RSfM72o6oDk2QdPMljY/bH8t2kMSKxVO8Cpbs5AkrEYzDvJC+Ao 6fD9Hq5qEkdaKDHSDB4+qRD3XGimERlMK/nlBi8vvex/i9/E70yuVsNr4Tr48qoCRe3a eNqw== X-Gm-Message-State: AOAM533lzZ2Pa8NZsJytRIy2YhNNbMyEZNXfKNMV4ciEq9TAF6nnksNi 3C9JS4t6JqgP+3qE69GMogXghQ== X-Received: by 2002:a1c:1d82:: with SMTP id d124mr7044308wmd.68.1625771849827; Thu, 08 Jul 2021 12:17:29 -0700 (PDT) Received: from zen.linaroharston ([51.148.130.216]) by smtp.gmail.com with ESMTPSA id v18sm3589427wrr.54.2021.07.08.12.17.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Jul 2021 12:17:20 -0700 (PDT) Received: from zen.lan (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id C73AA1FF8C; Thu, 8 Jul 2021 20:09:45 +0100 (BST) From: =?utf-8?q?Alex_Benn=C3=A9e?= To: qemu-devel@nongnu.org Subject: [PATCH v2 36/39] plugins/cache: Enable cache parameterization Date: Thu, 8 Jul 2021 20:09:38 +0100 Message-Id: <20210708190941.16980-37-alex.bennee@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210708190941.16980-1-alex.bennee@linaro.org> References: <20210708190941.16980-1-alex.bennee@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2a00:1450:4864:20::330; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x330.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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: fam@euphon.net, minyihh@uci.edu, berrange@redhat.com, kuhn.chenqun@huawei.com, f4bug@amsat.org, robhenry@microsoft.com, mahmoudabdalghany@outlook.com, aaron@os.amperecomputing.com, cota@braap.org, stefanha@redhat.com, crosa@redhat.com, pbonzini@redhat.com, ma.mandourr@gmail.com, Alexandre Iooss , =?utf-8?q?Alex_Benn=C3=A9e?= , aurelien@aurel32.net Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" From: Mahmoud Mandour Enabled configuring both icache and dcache parameters using plugin parameters. Signed-off-by: Mahmoud Mandour Signed-off-by: Alex Bennée Message-Id: <20210623125458.450462-3-ma.mandourr@gmail.com> --- contrib/plugins/cache.c | 47 ++++++++++++++++++++++++++++++++++++++++- 1 file changed, 46 insertions(+), 1 deletion(-) -- 2.20.1 diff --git a/contrib/plugins/cache.c b/contrib/plugins/cache.c index e9955cdc3a..b550ef31b0 100644 --- a/contrib/plugins/cache.c +++ b/contrib/plugins/cache.c @@ -99,8 +99,28 @@ static inline uint64_t extract_set(Cache *cache, uint64_t addr) return (addr & cache->set_mask) >> cache->blksize_shift; } +static const char *cache_config_error(int blksize, int assoc, int cachesize) +{ + if (cachesize % blksize != 0) { + return "cache size must be divisible by block size"; + } else if (cachesize % (blksize * assoc) != 0) { + return "cache size must be divisible by set size (assoc * block size)"; + } else { + return NULL; + } +} + +static bool bad_cache_params(int blksize, int assoc, int cachesize) +{ + return (cachesize % blksize) != 0 || (cachesize % (blksize * assoc) != 0); +} + static Cache *cache_init(int blksize, int assoc, int cachesize) { + if (bad_cache_params(blksize, assoc, cachesize)) { + return NULL; + } + Cache *cache; int i; uint64_t blk_mask; @@ -397,7 +417,19 @@ int qemu_plugin_install(qemu_plugin_id_t id, const qemu_info_t *info, for (i = 0; i < argc; i++) { char *opt = argv[i]; - if (g_str_has_prefix(opt, "limit=")) { + if (g_str_has_prefix(opt, "iblksize=")) { + iblksize = g_ascii_strtoll(opt + 9, NULL, 10); + } else if (g_str_has_prefix(opt, "iassoc=")) { + iassoc = g_ascii_strtoll(opt + 7, NULL, 10); + } else if (g_str_has_prefix(opt, "icachesize=")) { + icachesize = g_ascii_strtoll(opt + 11, NULL, 10); + } else if (g_str_has_prefix(opt, "dblksize=")) { + dblksize = g_ascii_strtoll(opt + 9, NULL, 10); + } else if (g_str_has_prefix(opt, "dassoc=")) { + dassoc = g_ascii_strtoll(opt + 7, NULL, 10); + } else if (g_str_has_prefix(opt, "dcachesize=")) { + dcachesize = g_ascii_strtoll(opt + 11, NULL, 10); + } else if (g_str_has_prefix(opt, "limit=")) { limit = g_ascii_strtoll(opt + 6, NULL, 10); } else { fprintf(stderr, "option parsing failed: %s\n", opt); @@ -406,7 +438,20 @@ int qemu_plugin_install(qemu_plugin_id_t id, const qemu_info_t *info, } dcache = cache_init(dblksize, dassoc, dcachesize); + if (!dcache) { + const char *err = cache_config_error(dblksize, dassoc, dcachesize); + fprintf(stderr, "dcache cannot be constructed from given parameters\n"); + fprintf(stderr, "%s\n", err); + return -1; + } + icache = cache_init(iblksize, iassoc, icachesize); + if (!icache) { + const char *err = cache_config_error(iblksize, iassoc, icachesize); + fprintf(stderr, "icache cannot be constructed from given parameters\n"); + fprintf(stderr, "%s\n", err); + return -1; + } rng = g_rand_new();