From patchwork Wed Aug 7 06:40:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 13755774 X-Patchwork-Delegate: iweiny@gmail.com 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 DC9501B5821; Wed, 7 Aug 2024 06:44:31 +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=1723013072; cv=none; b=mZ83hgWBwiu2+4v2l6pjI6rPx+GODRq8/DS5bnFlaLl+ndFW9/1Jk2AdfaGAafSR6vFvRfOBGxHgwUodqOwKndbFCOaCQV8IhI2iuhUJnQc4HHZ8LUPa1gOwWw9QHpvzpnr1wZ6YyggjBwYAt3BbjYYHLIngztRk6vZ2QH7q538= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723013072; c=relaxed/simple; bh=vCIXrgl3SP3v/Vqu1/LDbY5gKbyjeoV+ZLSvDraCd1c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UbVULujfmu6TrKM0AchLTImqdEzi3rsrfmWPk+puwpPz9656uwwQTbP19U3z756UljdMaN2GdeSiy5D5e5diyUDq/83VhgGI1vHRUNewD7mvoSEyDNNSKjkWgMlJUQO+BI9BlQElFin5SiA9+E4BMd6MXF/RQR1dflmTGlxIH5Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gLwD8xrh; 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="gLwD8xrh" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1581EC32782; Wed, 7 Aug 2024 06:44:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723013071; bh=vCIXrgl3SP3v/Vqu1/LDbY5gKbyjeoV+ZLSvDraCd1c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gLwD8xrhXhGurybegKRGcYoTM5qcL2Y062AstlCgCM79F4T/AEkzXTbcfv0MOzjwW Eq0PcVS3V86ocUP3mB6Y6Y6UnrTtOI/izfLLbOuE9sfZuHq5sj9X8xFL8/LBlFzTMA nhhTSHN5VCB1CeMWDguB123kz7fyGoo1iixSw9exgnlMKql/reF1dSUfuKo8+MOw+u bap58yiWa9fEdXv2JTw0YynrZZkPVNviRZ2NxWBpGm3rihHH3AGTt3me3TR0k5hYQQ VIH41/GUGAx2BCm6dr6/70HhMv6Imdtt6B7+JB1KXBpbCuC0D8fX3f135tBi9dcLuv OYU6o/Vwbbxtg== 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 v4 15/26] x86/numa_emu: use a helper function to get MAX_DMA32_PFN Date: Wed, 7 Aug 2024 09:40:59 +0300 Message-ID: <20240807064110.1003856-16-rppt@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240807064110.1003856-1-rppt@kernel.org> References: <20240807064110.1003856-1-rppt@kernel.org> Precedence: bulk X-Mailing-List: nvdimm@lists.linux.dev 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 Tested-by: Zi Yan # for x86_64 and arm64 Tested-by: Jonathan Cameron [arm64 + CXL via QEMU] Acked-by: Dan Williams Acked-by: David Hildenbrand --- arch/x86/include/asm/numa.h | 1 + arch/x86/mm/numa.c | 5 +++++ arch/x86/mm/numa_emulation.c | 4 ++-- 3 files changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/numa.h b/arch/x86/include/asm/numa.h index 7017d540894a..b22c85c1ef18 100644 --- a/arch/x86/include/asm/numa.h +++ b/arch/x86/include/asm/numa.h @@ -74,6 +74,7 @@ void debug_cpumask_set_cpu(int cpu, int node, bool enable); int numa_emu_cmdline(char *str); void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys, unsigned int nr_emu_nids); +u64 __init numa_emu_dma_end(void); #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 ea3fc2d866e2..2acf8d17b9b8 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -872,6 +872,11 @@ void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys, __apicid_to_node[i] = j < nr_emu_nids ? j : 0; } } + +u64 __init numa_emu_dma_end(void) +{ + return PFN_PHYS(MAX_DMA32_PFN); +} #endif /* CONFIG_NUMA_EMU */ #ifdef CONFIG_NUMA_KEEP_MEMINFO diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c index f2746e52ab93..fb4814497446 100644 --- a/arch/x86/mm/numa_emulation.c +++ b/arch/x86/mm/numa_emulation.c @@ -128,7 +128,7 @@ static int __init split_nodes_interleave(struct numa_meminfo *ei, */ while (!nodes_empty(physnode_mask)) { for_each_node_mask(i, physnode_mask) { - u64 dma32_end = PFN_PHYS(MAX_DMA32_PFN); + u64 dma32_end = numa_emu_dma_end(); u64 start, limit, end; int phys_blk; @@ -275,7 +275,7 @@ static int __init split_nodes_size_interleave_uniform(struct numa_meminfo *ei, */ while (!nodes_empty(physnode_mask)) { for_each_node_mask(i, physnode_mask) { - u64 dma32_end = PFN_PHYS(MAX_DMA32_PFN); + u64 dma32_end = numa_emu_dma_end(); u64 start, limit, end; int phys_blk;