From patchwork Wed Dec 27 12:07:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiong Yining X-Patchwork-Id: 13505348 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id EE826C46CD2 for ; Wed, 27 Dec 2023 15:08:05 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rIVUk-0007cx-VH; Wed, 27 Dec 2023 10:06:54 -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 1rIShh-0002Hs-DW; Wed, 27 Dec 2023 07:08:06 -0500 Received: from sgoci-sdnproxy-4.icoremail.net ([129.150.39.64]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rIShe-0006Pg-Cu; Wed, 27 Dec 2023 07:08:04 -0500 Received: from prodtpl.icoremail.net (unknown [10.12.1.20]) by hzbj-icmmx-6 (Coremail) with SMTP id AQAAfwCXnwuZE4xl5b1lAg--.30641S2; Wed, 27 Dec 2023 20:07:53 +0800 (CST) Received: from phytium.com.cn (unknown [218.76.62.144]) by mail (Coremail) with SMTP id AQAAfwDX+OWSE4xldrYAAA--.2783S5; Wed, 27 Dec 2023 20:07:49 +0800 (CST) From: Xiong Yining To: rad@semihalf.com, peter.maydell@linaro.org, quic_llindhol@quicinc.com, marcin.juszkiewicz@linaro.org Cc: qemu-arm@nongnu.org, qemu-devel@nongnu.org, chenbaozi@phytium.com.cn, xiongyining1480 Subject: [PATCH 2/2] hw/arm/sbsa-ref: Add cpu-map to device tree Date: Wed, 27 Dec 2023 12:07:22 +0000 Message-Id: <20231227120722.1683361-3-xiongyining1480@phytium.com.cn> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231227120722.1683361-1-xiongyining1480@phytium.com.cn> References: <20231227120722.1683361-1-xiongyining1480@phytium.com.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAfwDX+OWSE4xldrYAAA--.2783S5 X-CM-SenderInfo: x0lr0wp1lqx0bjrumio6sk53xlxphulrpou0/1tbiAQAGBmWLKugHfQAAsX Authentication-Results: hzbj-icmmx-6; spf=neutral smtp.mail=xiongyinin g1480@phytium.com.cn; X-Coremail-Antispam: 1Uk129KBjvJXoW7AF13Cr1kAw17KF1UWw4UArb_yoW8Cr17pw 4UJF1YgrW5CrnFvayfWa42gFyFgw1rXw4UXw47KayFywnrG34fXFyIyF90kr18Jry2gFya krn8CFyFga4UJrUanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUj1kv1TuYvTs0mT0YCTnIWj DUYxn0WfASr-VFAU7a7-sFnT9fnUUIcSsGvfJ3UbIYCTnIWIevJa73UjIFyTuYvj4RJUUU UUUUU Received-SPF: pass client-ip=129.150.39.64; envelope-from=xiongyining1480@phytium.com.cn; helo=sgoci-sdnproxy-4.icoremail.net 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_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Wed, 27 Dec 2023 10:06:52 -0500 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: xiongyining1480 Support CPU topology description through device tree. Signed-off-by: Xiong Yining Signed-off-by: Chen Baozi --- hw/arm/sbsa-ref.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c index e6cd612bc5..a3c851148a 100644 --- a/hw/arm/sbsa-ref.c +++ b/hw/arm/sbsa-ref.c @@ -283,10 +283,45 @@ static void create_fdt(SBSAMachineState *sms) ms->possible_cpus->cpus[cs->cpu_index].props.node_id); } + qemu_fdt_setprop_cell(sms->fdt, nodename, "phandle", + qemu_fdt_alloc_phandle(sms->fdt)); + g_free(nodename); } + sbsa_fdt_add_gic_node(sms); + + /* + * Add vCPU topology description through fdt node cpu-map. + */ + qemu_fdt_add_subnode(sms->fdt, "/cpus/cpu-map"); + + for (cpu = sms->smp_cpus - 1; cpu >= 0; cpu--) { + char *cpu_path = g_strdup_printf("/cpus/cpu@%d", cpu); + char *map_path; + + if (ms->smp.threads > 1) { + map_path = g_strdup_printf( + "/cpus/cpu-map/socket%d/cluster%d/core%d/thread%d", + cpu / (ms->smp.clusters * ms->smp.cores * ms->smp.threads), + (cpu / (ms->smp.cores * ms->smp.threads)) % ms->smp.clusters, + (cpu / ms->smp.threads) % ms->smp.cores, + cpu % ms->smp.threads); + } else { + map_path = g_strdup_printf( + "/cpus/cpu-map/socket%d/cluster%d/core%d", + cpu / (ms->smp.clusters * ms->smp.cores), + (cpu / ms->smp.cores) % ms->smp.clusters, + cpu % ms->smp.cores); + } + qemu_fdt_add_path(sms->fdt, map_path); + qemu_fdt_setprop_phandle(sms->fdt, map_path, "cpu", cpu_path); + + g_free(map_path); + g_free(cpu_path); + } + } #define SBSA_FLASH_SECTOR_SIZE (256 * KiB)