From patchwork Mon Nov 20 02:54:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Henry Wang X-Patchwork-Id: 13460751 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.xenproject.org (lists.xenproject.org [192.237.175.120]) (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 A212EC5AD4C for ; Mon, 20 Nov 2023 02:56:04 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.636378.991846 (Exim 4.92) (envelope-from ) id 1r4uRv-0004Fv-AF; Mon, 20 Nov 2023 02:55:47 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 636378.991846; Mon, 20 Nov 2023 02:55:47 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1r4uRu-0004De-VA; Mon, 20 Nov 2023 02:55:46 +0000 Received: by outflank-mailman (input) for mailman id 636378; Mon, 20 Nov 2023 02:55:46 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1r4uRn-0007WE-I7 for xen-devel@lists.xenproject.org; Mon, 20 Nov 2023 02:55:39 +0000 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by se1-gles-flk1.inumbo.com (Halon) with ESMTP id 47d0901d-8750-11ee-9b0e-b553b5be7939; Mon, 20 Nov 2023 03:55:36 +0100 (CET) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7B6381042; Sun, 19 Nov 2023 18:56:22 -0800 (PST) Received: from a015966.shanghai.arm.com (a015966.shanghai.arm.com [10.169.190.5]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id CE3183F6C4; Sun, 19 Nov 2023 18:55:33 -0800 (PST) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 47d0901d-8750-11ee-9b0e-b553b5be7939 From: Henry Wang To: xen-devel@lists.xenproject.org Cc: Wei Chen , Stefano Stabellini , Julien Grall , Bertrand Marquis , Michal Orzel , Volodymyr Babchuk , Henry Wang Subject: [PATCH v6 13/17] xen/arm: implement numa_node_to_arch_nid for device tree NUMA Date: Mon, 20 Nov 2023 10:54:27 +0800 Message-Id: <20231120025431.14845-14-Henry.Wang@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231120025431.14845-1-Henry.Wang@arm.com> References: <20231120025431.14845-1-Henry.Wang@arm.com> MIME-Version: 1.0 From: Wei Chen Device tree based NUMA doesn't have the proximity domain like ACPI. So we can return node id directly as arch nid. Signed-off-by: Wei Chen Signed-off-by: Henry Wang --- v5 -> v6: - Rebase on top of staging without code changes. v1 -> v5: - Use numa_node_to_arch_nid instead of dummy node_to_pxm. --- xen/arch/arm/include/asm/numa.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/xen/arch/arm/include/asm/numa.h b/xen/arch/arm/include/asm/numa.h index 55ac4665db..71b95a9a62 100644 --- a/xen/arch/arm/include/asm/numa.h +++ b/xen/arch/arm/include/asm/numa.h @@ -47,6 +47,15 @@ extern void numa_detect_cpu_node(unsigned int cpu); extern int numa_device_tree_init(const void *fdt); extern void numa_init(void); +/* + * Device tree NUMA doesn't have architecural node id. + * So we can just return node id as arch nid. + */ +static inline unsigned int numa_node_to_arch_nid(nodeid_t n) +{ + return n; +} + #else /* Fake one node for now. See also node_online_map. */