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[109.252.170.211]) by smtp.googlemail.com with ESMTPSA id w8sm1807687ljm.48.2020.08.23.14.42.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 23 Aug 2020 14:42:03 -0700 (PDT) Subject: Re: [PATCH 12/18] iommu/tegra-gart: Add IOMMU_DOMAIN_DMA support To: Robin Murphy , hch@lst.de, joro@8bytes.org, linux@armlinux.org.uk References: <516b33118d489e56499ff8c64c019709b744110c.1597931876.git.robin.murphy@arm.com> <081f7532-9ca0-0af3-35a1-cbaba0782237@gmail.com> <3a132bb0-f2e6-6f8d-6d0c-bc925dd23f06@arm.com> From: Dmitry Osipenko Message-ID: Date: Mon, 24 Aug 2020 00:42:02 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <3a132bb0-f2e6-6f8d-6d0c-bc925dd23f06@arm.com> Content-Language: en-US Cc: geert+renesas@glider.be, dri-devel@lists.freedesktop.org, matthias.bgg@gmail.com, thierry.reding@gmail.com, laurent.pinchart@ideasonboard.com, will@kernel.org, linux-samsung-soc@vger.kernel.org, magnus.damm@gmail.com, kyungmin.park@samsung.com, jonathanh@nvidia.com, agross@kernel.org, linux-media@vger.kernel.org, linux-arm-msm@vger.kernel.org, inki.dae@samsung.com, linux-mediatek@lists.infradead.org, linux-tegra@vger.kernel.org, linux-arm-kernel@lists.infradead.org, sw0312.kim@samsung.com, linux-kernel@vger.kernel.org, t-kristo@ti.com, iommu@lists.linux-foundation.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" MjEuMDguMjAyMCAwMzoyOCwgUm9iaW4gTXVycGh5INC/0LjRiNC10YI6Ci4uLgo+PiBXaWxsIGEg cmV0dXJuZWQgTlVMTCB0ZWxsIHRvIElPTU1VIGNvcmUgdGhhdCBpbXBsaWNpdCBkb21haW4gc2hv dWxkbid0Cj4+IGJlIHVzZWQ/IElzIGl0IHBvc3NpYmxlIHRvIGxlYXZlIHRoaXMgZHJpdmVyIGFz LWlzPwo+IAo+IFRoZSBhaW0gb2YgdGhpcyBwYXRjaCB3YXMganVzdCB0byBtYWtlIHRoZSBjb252 ZXJzaW9uIHdpdGhvdXQgZnVuY3Rpb25hbAo+IGNoYW5nZXMgd2hlcmV2ZXIgcG9zc2libGUsIGku ZS4gbWFpbnRhaW4gYW4gZXF1aXZhbGVudCB0byB0aGUgZXhpc3RpbmcKPiBBUk0gYmVoYXZpb3Vy IG9mIGFsbG9jYXRpbmcgaXRzIG93biBpbXBsaWNpdCBkb21haW5zIGZvciBldmVyeXRoaW5nLiBJ dAo+IGRvZXNuJ3QgcmVwcmVzZW50IGFueSBqdWRnZW1lbnQgb2Ygd2hldGhlciB0aGF0IHdhcyBl dmVyIGFwcHJvcHJpYXRlIGZvcgo+IHRoaXMgZHJpdmVyIGluIHRoZSBmaXJzdCBwbGFjZSA7KQo+ IAo+IEhvcGVmdWxseSBteSBvdGhlciByZXBseSBhbHJlYWR5IGNvdmVyZWQgdGhlIGRlZ3JlZSBv ZiBjb250cm9sIGRyaXZlcnMKPiBjYW4gaGF2ZSB3aXRoIHByb3BlciBkZWZhdWx0IGRvbWFpbnMs IGJ1dCBkbyBzaG91dCBpZiBhbnl0aGluZyB3YXNuJ3QKPiBjbGVhci4KClRoYW5rIHlvdSBmb3Ig dGhlIGRldGFpbGVkIGNvbW1lbnRzISBJIHdhc24ndCB3YXRjaGluZyBjbG9zZWx5IGFsbCB0aGUK cmVjZW50IGlvbW11LyBjaGFuZ2VzIGFuZCB5b3VycyBjbGFyaWZpY2F0aW9uIGlzIHZlcnkgaGVs cGZ1bCEKCk15IGN1cnJlbnQgdW5kZXJzdGFuZGluZyBpcyB0aGF0IHRoZSBHQVJUIGRyaXZlciB3 aWxsIG5lZWQgdG8gc3VwcG9ydAp0aGUgSU9NTVVfRE9NQUlOX0lERU5USVRZIGFuZCBzZXQgZGVm X2RvbWFpbl90eXBlIHRvCklPTU1VX0RPTUFJTl9JREVOVElUWSBmb3IgYWxsIGRldmljZXMuCgpN ZWFud2hpbGUsIHRvZGF5J3MgdXBzdHJlYW0gZHJpdmVycyBkb24ndCB1c2UgR0FSVCwgaGVuY2Ug dGhpcyBwYXRjaApzaG91bGQgYmUgb2theS4gQWx0aG91Z2gsIGl0J3MgYSBiaXQgdW5saWtlbHkg dGhhdCB0aGUgSU9NTVVfRE9NQUlOX0RNQQp0eXBlIHdpbGwgZXZlciBiZSB1c2VmdWwgZm9yIHRo ZSBHQVJULCBhbmQgdGh1cywgSSdtIHN0aWxsIHRoaW5raW5nIHRoYXQKd2lsbCBiZSBhIGJpdCBu aWNlciB0byBrZWVwIEdBUlQgZHJpdmVyIGFzLWlzIGZvciBub3cuCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmlvbW11IG1haWxpbmcgbGlzdAppb21tdUBs aXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczovL2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5v cmcvbWFpbG1hbi9saXN0aW5mby9pb21tdQ==