From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f48.google.com (mail-oo1-f48.google.com [209.85.161.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B053A481A2 for ; Tue, 28 Nov 2023 22:55:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=soleen.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=soleen.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=soleen.com header.i=@soleen.com header.b="INNf2Tn2" Received: by mail-oo1-f48.google.com with SMTP id 006d021491bc7-58d7d58ab7fso1576308eaf.2 for ; Tue, 28 Nov 2023 14:55:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=soleen.com; s=google; t=1701212144; x=1701816944; darn=lists.linux.dev; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=wfgEOy2prfurtAfhJK/0Guihsou0dTaccer75iSoWso=; b=INNf2Tn2CzWmJgDEYImmQXqL/CRWuGH78l5kUawYTGfDRnmVjr7HCUXkpf4VHJG3Vx qg0dvTTWCPeVUppUQXgqYrZijxW7Vk0iBPsvJnlg3Bh6RfMO1cR/bsp7E/k7eNGq5IEX hxsT1ah6aeldFWDStakKCRJalO6z5eZT16PjsMvQzFpagXggiFYegrfwIlPKkvoj7J2V 01Qxblv0/ivK8Ioakz77anYROfpu1HXoWvWP6MYuu1Fhksn0ItgH3n3xfwSkoiyLEyH1 t33FVp/pbHFnxS/0IOmOlkInh8IgwUP3kpGyfVObuwue+nPDgLT+B32MR8a7/Ukedp6e 2dKQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701212144; x=1701816944; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=wfgEOy2prfurtAfhJK/0Guihsou0dTaccer75iSoWso=; b=YFqCl5/ybOw5672Dxgc6pw2zHvGM83xzm7LUJYzYVwcAXmg4rXYuBmL1ybiyZq/geG iee+kwggpES1Hi1I9r6XhnR974ah4JY0IgsZPoHyvdUKEaHlsGjYhIGvCvH4IJD5UYx0 Hpz5Sb9a6RO/WRIsf30hurJ6kaFukUloXLxEE3CfZl3MA6QYG5UDPdFQ9D2oYOfW25DC DixoBkiwYO3/wkGZ2wLh/HpH255i+V4KX4g5m+OY+8Sbe+sXYzeQxpUoA0398ou77xf5 Q0tdsY/JCYhywdvwpQU8JujB992QRsYg3t/lL4OywVkxPTVNQFXW8eoFY77LKtD2j/xx GVmw== X-Gm-Message-State: AOJu0Yyfqum2cOmSHVxgV17/9MX49M0W01f7lRuom7sHz9bW7ILqbk4M EqwO6MtrFDm19ceOabRb8xIYgCzVCPVYvzDW739jSg== X-Google-Smtp-Source: AGHT+IHisXYdh3pxH8NCFygwpTk8sa04O8TeLdxM3oMX+99Z92ajNHfOBhWjaeIXy0J8F2P4nyXD+nsTEaXIGG5EBsc= X-Received: by 2002:a05:6358:724c:b0:16d:fb29:d78 with SMTP id i12-20020a056358724c00b0016dfb290d78mr15947280rwa.2.1701212143714; Tue, 28 Nov 2023 14:55:43 -0800 (PST) Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <20231128204938.1453583-1-pasha.tatashin@soleen.com> <20231128204938.1453583-6-pasha.tatashin@soleen.com> <8e1961c9-0359-4450-82d8-2b2fcb2c5557@arm.com> In-Reply-To: <8e1961c9-0359-4450-82d8-2b2fcb2c5557@arm.com> From: Pasha Tatashin Date: Tue, 28 Nov 2023 17:55:07 -0500 Message-ID: Subject: Re: [PATCH 05/16] iommu/io-pgtable-arm-v7s: use page allocation function provided by iommu-pages.h To: Robin Murphy Cc: akpm@linux-foundation.org, alex.williamson@redhat.com, alim.akhtar@samsung.com, alyssa@rosenzweig.io, asahi@lists.linux.dev, baolu.lu@linux.intel.com, bhelgaas@google.com, cgroups@vger.kernel.org, corbet@lwn.net, david@redhat.com, dwmw2@infradead.org, hannes@cmpxchg.org, heiko@sntech.de, iommu@lists.linux.dev, jasowang@redhat.com, jernej.skrabec@gmail.com, jgg@ziepe.ca, jonathanh@nvidia.com, joro@8bytes.org, kevin.tian@intel.com, krzysztof.kozlowski@linaro.org, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-rockchip@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-sunxi@lists.linux.dev, linux-tegra@vger.kernel.org, lizefan.x@bytedance.com, marcan@marcan.st, mhiramat@kernel.org, mst@redhat.com, m.szyprowski@samsung.com, netdev@vger.kernel.org, paulmck@kernel.org, rdunlap@infradead.org, samuel@sholland.org, suravee.suthikulpanit@amd.com, sven@svenpeter.dev, thierry.reding@gmail.com, tj@kernel.org, tomas.mudrunka@gmail.com, vdumpa@nvidia.com, virtualization@lists.linux.dev, wens@csie.org, will@kernel.org, yu-cheng.yu@intel.com Content-Type: text/plain; charset="UTF-8" > > kmem_cache_free(data->l2_tables, table); We only account page allocations, not subpages, however, this is something I was surprised about this particular architecture of why do we allocate l2 using kmem ? Are the second level tables on arm v7s really sub-page in size? Pasha From mboxrd@z Thu Jan 1 00:00:00 1970 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 62AC8C4167B for ; Tue, 28 Nov 2023 22:56:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Hc9rPBmhRFI85WmVaAXaP5SIXUAbMimsoSLdhrdfCPk=; b=2Lt4ktFDUAtCl2 beEr6IBnWhm7OevbM51wIW2tkpIm3AX3/ezTSK1FW0b8ctHY8w+R1eZejvR70jMlo3ODQ1O3OE1u3 efbnV/ik2LDMJ0cTCjUu89TZIt5FcdTCrdLFGDZCC0+ZuZO9hQbM9xD815tMxRiUGKvgqIb4czEfd yxtw4CKH5Md5gFEHCNH8pdHaMrb++JgjnmEP/8u8d9aqtUAEqLTi4UJQwMypG9Zj7cytwxn5KO0p3 v4dqFjMbeCkvJ63sOuGD9w0amXUHo09bqbR6FnuUv+AXuOhZ44hvOErGAElZQ9ewQQt/YCNijImAM biNXa63AMha0+AO9Mmlg==; 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X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org > > kmem_cache_free(data->l2_tables, table); We only account page allocations, not subpages, however, this is something I was surprised about this particular architecture of why do we allocate l2 using kmem ? Are the second level tables on arm v7s really sub-page in size? Pasha _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip