From patchwork Wed Aug 7 06:40:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Rapoport X-Patchwork-Id: 13755799 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 C2A0C1BE239; Wed, 7 Aug 2024 06:44:07 +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=1723013048; cv=none; b=pliQI6/BHT1e5KLhdeFAZANVHLfUmhgFLvDHv3oABjeWj3i6evSGML6zgsK36eIMM8qKJb53KRbgvNHW8hAFuT3C7eiRlTQ+RBmgsEaIcsyeeX3k7U0GSI+KjZyFHTrL/Rz3/Tzk2lVGAFqAsugH2Nz8bMUNyiAXfzvtQ1MIJuU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723013048; c=relaxed/simple; bh=QDF0U8QlawtqeT1NfRWfgk6Ztj16qIvsn11RQ3DyQoE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SRN2OK6prOUouFp2JoowsUWHCWa+zTcm6k88pZiVZC59S7Da+kmr45AdpTAOpbTpBuiouoLh3XscLmMBEERmX/JjjEP+lLgPygDm2KQtu3FbzRIyth059IJ8bTajJpx6G4WsjpdB3yM8fxCqDAk0hXmhr84IpJz0M8yAZ3a+OGo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PhQ805wY; 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="PhQ805wY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 34388C4AF0E; Wed, 7 Aug 2024 06:43:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1723013047; bh=QDF0U8QlawtqeT1NfRWfgk6Ztj16qIvsn11RQ3DyQoE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PhQ805wYlvX3eC1aoinqgplf1Qch2y+Fs8pNFYaDs9OngkD16ya6T8zdMurHDrVEQ IUdlTUAp/LTQ9stjhlsQz7mLNoxgi85TwPJl1I8W2VIf35ybs53CSoAPaDDNVfdFOb wdIXMOEwJAfcGil2uGFN7ue/Z15y9iuwnUFzCLb7HGA/bWj4noYJOFjD46H+bAX+UJ spPzo2/5QJrBFp1ikul6SIXorZbHadt5AwUrVpwWdP3d8g3l0HjNHehJmTisYEK3Ci RVFiwWFAgVdyF6C+qQpMbtAwk5NzP0TWauk3VLMrkhIpssnn/x0EyntdEb3W6zef+L r7tATnEWIQ2nw== 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 13/26] x86/numa_emu: simplify allocation of phys_dist Date: Wed, 7 Aug 2024 09:40:57 +0300 Message-ID: <20240807064110.1003856-14-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: linux-cxl@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: "Mike Rapoport (Microsoft)" By the time numa_emulation() is called, all physical memory is already mapped in the direct map and there is no need to define limits for memblock allocation. Replace memblock_phys_alloc_range() with memblock_alloc(). 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/mm/numa_emulation.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c index 1ce22e315b80..439804e21962 100644 --- a/arch/x86/mm/numa_emulation.c +++ b/arch/x86/mm/numa_emulation.c @@ -448,15 +448,11 @@ void __init numa_emulation(struct numa_meminfo *numa_meminfo, int numa_dist_cnt) /* copy the physical distance table */ if (numa_dist_cnt) { - u64 phys; - - phys = memblock_phys_alloc_range(phys_size, PAGE_SIZE, 0, - PFN_PHYS(max_pfn_mapped)); - if (!phys) { + phys_dist = memblock_alloc(phys_size, PAGE_SIZE); + if (!phys_dist) { pr_warn("NUMA: Warning: can't allocate copy of distance table, disabling emulation\n"); goto no_emu; } - phys_dist = __va(phys); for (i = 0; i < numa_dist_cnt; i++) for (j = 0; j < numa_dist_cnt; j++)