From patchwork Thu Aug 1 06:08:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 13749804 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 53683C3DA64 for ; Thu, 1 Aug 2024 06:17:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=bG6M5e3j+jSHyqtWx4rOIEyZl256PwLpGT2BLqjHCxw=; b=YYZhSWsrZjpvgiVxwvblqzXaI+ IBSBlYHINWuvlnWkRbwRh7El4qYQLsN85k6ApIHebWYhkt34Dj/MQ5f+QWJU1D+Oag/ndJtnqULlv bXG207ZXsKSPfpHCM+ULcAjnqfCwpOjGRKsvZkeIFoOXIPi2eLJysgFk2INa/EqOM5vAc+asb/cle TET/ghIZhSAsrt8IK7zP3UhboZCkhLW0si2aguP+nMKJn3xGuM/Zl1FHo7FaKY3hPWSGRLjS+YBNP w23Zi4ny4PhHXNkXCZA/xPR9Me2sZ22lM8De/gJlGCE/gBxnsbIihA+K8P5YlNlh/R8i1+EB8mGso QfArE/yQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sZP7R-00000003vmp-2X5M; Thu, 01 Aug 2024 06:16:57 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sZP2B-00000003svj-477G; Thu, 01 Aug 2024 06:11:33 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 4A73A6140C; Thu, 1 Aug 2024 06:11:31 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B7173C4AF0C; Thu, 1 Aug 2024 06:11:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1722492691; bh=Hwkl2fYIk7TOliTb70qL/9b9HRfQD7yZz25kkbJxzwg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sggkX9UXhxZlNsIU8Cl5aBh0kTbihmyOr+rKh8PUi6HpNbM0T6FIQKsN6mrcRHsf+ /SHE74zS057DN4assx4nJNhHkYwGmMqA+89c3GAN3GWW1EkySpM/jKp7djIHsHmlQ5 J+Rv/xUy1WL2p4zN9YP1XUUreurEUzXm4yz/xIU+P7O+cVStnX8B/b0U7trY1kXI3V hD82NTGJiywRlimIOVt1MLB+ZyReKPZdsG0bD+xetL7gw2D1t4eztwZAnWKJPPnk54 vnKaRI5ocC0Nw9z/8HV7kFU7UWYinD8YhScEarF8oyOHxHwNgCdMiLoia/TVqvYCnm Y30JzCKYd6e+A== From: Mike Rapoport To: linux-kernel@vger.kernel.org Cc: Alexander Gordeev , Andreas Larsson , Andrew Morton , Arnd Bergmann , Borislav Petkov , Catalin Marinas , Christophe Leroy , Dan Williams , Dave Hansen , David Hildenbrand , "David S. Miller" , Davidlohr Bueso , Greg Kroah-Hartman , Heiko Carstens , Huacai Chen , Ingo Molnar , Jiaxun Yang , John Paul Adrian Glaubitz , Jonathan Cameron , Jonathan Corbet , Michael Ellerman , Mike Rapoport , Palmer Dabbelt , "Rafael J. Wysocki" , Rob Herring , Samuel Holland , Thomas Bogendoerfer , Thomas Gleixner , Vasily Gorbik , Will Deacon , Zi Yan , devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-cxl@vger.kernel.org, linux-doc@vger.kernel.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, nvdimm@lists.linux.dev, sparclinux@vger.kernel.org, x86@kernel.org, Jonathan Cameron Subject: [PATCH v3 14/26] x86/numa_emu: split __apicid_to_node update to a helper function Date: Thu, 1 Aug 2024 09:08:14 +0300 Message-ID: <20240801060826.559858-15-rppt@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240801060826.559858-1-rppt@kernel.org> References: <20240801060826.559858-1-rppt@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240731_231132_179159_41ED66EA X-CRM114-Status: GOOD ( 17.83 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: "Mike Rapoport (Microsoft)" This is required to make numa emulation code architecture independent so that it can be moved to generic code in following commits. Signed-off-by: Mike Rapoport (Microsoft) Reviewed-by: Jonathan Cameron Tested-by: Zi Yan # for x86_64 and arm64 Acked-by: David Hildenbrand --- arch/x86/include/asm/numa.h | 2 ++ arch/x86/mm/numa.c | 22 ++++++++++++++++++++++ arch/x86/mm/numa_emulation.c | 14 +------------- 3 files changed, 25 insertions(+), 13 deletions(-) diff --git a/arch/x86/include/asm/numa.h b/arch/x86/include/asm/numa.h index 2dab1ada96cf..7017d540894a 100644 --- a/arch/x86/include/asm/numa.h +++ b/arch/x86/include/asm/numa.h @@ -72,6 +72,8 @@ void debug_cpumask_set_cpu(int cpu, int node, bool enable); #ifdef CONFIG_NUMA_EMU int numa_emu_cmdline(char *str); +void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys, + unsigned int nr_emu_nids); #else /* CONFIG_NUMA_EMU */ static inline int numa_emu_cmdline(char *str) { diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index cfe7e5477cf8..9180d524cfe4 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -848,6 +848,28 @@ EXPORT_SYMBOL(cpumask_of_node); #endif /* !CONFIG_DEBUG_PER_CPU_MAPS */ +#ifdef CONFIG_NUMA_EMU +void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys, + unsigned int nr_emu_nids) +{ + int i, j; + + /* + * Transform __apicid_to_node table to use emulated nids by + * reverse-mapping phys_nid. The maps should always exist but fall + * back to zero just in case. + */ + for (i = 0; i < ARRAY_SIZE(__apicid_to_node); i++) { + if (__apicid_to_node[i] == NUMA_NO_NODE) + continue; + for (j = 0; j < nr_emu_nids; j++) + if (__apicid_to_node[i] == emu_nid_to_phys[j]) + break; + __apicid_to_node[i] = j < nr_emu_nids ? j : 0; + } +} +#endif /* CONFIG_NUMA_EMU */ + #ifdef CONFIG_NUMA_KEEP_MEMINFO static int meminfo_to_nid(struct numa_meminfo *mi, u64 start) { diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c index 439804e21962..f2746e52ab93 100644 --- a/arch/x86/mm/numa_emulation.c +++ b/arch/x86/mm/numa_emulation.c @@ -476,19 +476,7 @@ void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt) ei.blk[i].nid != NUMA_NO_NODE) node_set(ei.blk[i].nid, numa_nodes_parsed); - /* - * Transform __apicid_to_node table to use emulated nids by - * reverse-mapping phys_nid. The maps should always exist but fall - * back to zero just in case. - */ - for (i = 0; i < ARRAY_SIZE(__apicid_to_node); i++) { - if (__apicid_to_node[i] == NUMA_NO_NODE) - continue; - for (j = 0; j < ARRAY_SIZE(emu_nid_to_phys); j++) - if (__apicid_to_node[i] == emu_nid_to_phys[j]) - break; - __apicid_to_node[i] = j < ARRAY_SIZE(emu_nid_to_phys) ? j : 0; - } + numa_emu_update_cpu_to_node(emu_nid_to_phys, ARRAY_SIZE(emu_nid_to_phys)); /* make sure all emulated nodes are mapped to a physical node */ for (i = 0; i < ARRAY_SIZE(emu_nid_to_phys); i++)