From patchwork Tue Jul 16 11:13:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 13734380 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AA5F41991A4; Tue, 16 Jul 2024 11:15:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721128537; cv=none; b=F9ZTr9FxRIdz6dkmGg+qm5JfztW5nLz1rVZ9TsRZ0DAT6u06TOCdRkmUkTCrIGQj9/GwfXonuFo4kRZVj9SUCu4HsiUEwceB3oOzVvKG+w2P7lT81oqyElT0RP+BpzUO8nhsgTP67Ri3PpmSFHaNlYV0l0NjaI0WtL0+kXudzVY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721128537; c=relaxed/simple; bh=TtK2o1XZcHSBtZCo/iztzChwQXjabLP9TIYCaEXwnLA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gr4NERTpMN099EJ8N+9EXBT8l/Rlmi62JQcP56FESC0CxHUV3/ZADoS8dTgpdhTnIn3htpQnhFhwkP4kyVUu7Bn0dLNzY0DsjHm2cgllLhL62VU4n3wKDZ9wZy37rx7iQyusJJSmOeXFKQjvwEV3BDlNa6mXXflIdtCo4y4gSk4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=U2KDJ8Qq; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="U2KDJ8Qq" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EC052C116B1; Tue, 16 Jul 2024 11:15:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1721128537; bh=TtK2o1XZcHSBtZCo/iztzChwQXjabLP9TIYCaEXwnLA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=U2KDJ8QqsZ6ujc8t3TBx7FtuEY8O5WaX+Pxrz/aCCWpcNBESgqGzhlnFbOkmiGPh2 BJDM7n8YGnKhU5qvx5xGSCARdDsfvYgNqD8EAbGRyHyYeTH+Yslikcs3PSkxSDepVn cxfdTAdceSRM/JpCQqHkRcmntPwLxiy+SNTlSghcM4k+ANvJAHDPnWL7Ti/RdZmlx0 v2w/71QyzD8CSAR0b0qE+uBtAq2mpnIqwFDRPgutMiYJKCqg5n5OjpsTIWeyFQbMWL v38YxQomZehHmcgvvjOMbeO5+ArCF4brt6hJKVfzRxVp68ChSZcyOHFg3sWrxXeNpQ BKm8ZNJsG2pkw== 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" , Greg Kroah-Hartman , Heiko Carstens , Huacai Chen , Ingo Molnar , Jiaxun Yang , John Paul Adrian Glaubitz , Jonathan Cameron , Michael Ellerman , Mike Rapoport , Palmer Dabbelt , "Rafael J. Wysocki" , Rob Herring , Thomas Bogendoerfer , Thomas Gleixner , Vasily Gorbik , Will Deacon , linux-arm-kernel@lists.infradead.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-acpi@vger.kernel.org, linux-cxl@vger.kernel.org, nvdimm@lists.linux.dev, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org Subject: [PATCH 09/17] x86/numa_emu: split __apicid_to_node update to a helper function Date: Tue, 16 Jul 2024 14:13:38 +0300 Message-ID: <20240716111346.3676969-10-rppt@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240716111346.3676969-1-rppt@kernel.org> References: <20240716111346.3676969-1-rppt@kernel.org> Precedence: bulk X-Mailing-List: linux-sh@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 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 --- 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 ab2d4ecef786..1320d776caed 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -852,6 +852,28 @@ 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++)