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[109.252.170.211]) by smtp.googlemail.com with ESMTPSA id b15sm638637lji.140.2020.08.20.13.16.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 20 Aug 2020 13:16:03 -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> From: Dmitry Osipenko Message-ID: <081f7532-9ca0-0af3-35a1-cbaba0782237@gmail.com> Date: Thu, 20 Aug 2020 23:16:02 +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: <516b33118d489e56499ff8c64c019709b744110c.1597931876.git.robin.murphy@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" MjAuMDguMjAyMCAxODowOCwgUm9iaW4gTXVycGh5INC/0LjRiNC10YI6Cj4gTm93IHRoYXQgYXJj aC9hcm0gaXMgd2lyZWQgdXAgZm9yIGRlZmF1bHQgZG9tYWlucyBhbmQgaW9tbXUtZG1hLAo+IGlt cGxlbWVudCB0aGUgY29ycmVzcG9uZGluZyBkcml2ZXItc2lkZSBzdXBwb3J0IGZvciBETUEgZG9t YWlucy4KPiAKPiBTaWduZWQtb2ZmLWJ5OiBSb2JpbiBNdXJwaHkgPHJvYmluLm11cnBoeUBhcm0u Y29tPgo+IC0tLQo+ICBkcml2ZXJzL2lvbW11L3RlZ3JhLWdhcnQuYyB8IDE3ICsrKysrKysrKysr Ky0tLS0tCj4gIDEgZmlsZSBjaGFuZ2VkLCAxMiBpbnNlcnRpb25zKCspLCA1IGRlbGV0aW9ucygt KQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2lvbW11L3RlZ3JhLWdhcnQuYyBiL2RyaXZlcnMv aW9tbXUvdGVncmEtZ2FydC5jCj4gaW5kZXggZmFjNzIwMjczODg5Li5lMDgxMzg3MDgwZjYgMTAw NjQ0Cj4gLS0tIGEvZHJpdmVycy9pb21tdS90ZWdyYS1nYXJ0LmMKPiArKysgYi9kcml2ZXJzL2lv bW11L3RlZ3JhLWdhcnQuYwo+IEBAIC05LDYgKzksNyBAQAo+ICAKPiAgI2RlZmluZSBkZXZfZm10 KGZtdCkJImdhcnQ6ICIgZm10Cj4gIAo+ICsjaW5jbHVkZSA8bGludXgvZG1hLWlvbW11Lmg+Cj4g ICNpbmNsdWRlIDxsaW51eC9pby5oPgo+ICAjaW5jbHVkZSA8bGludXgvaW9tbXUuaD4KPiAgI2lu Y2x1ZGUgPGxpbnV4L21vZHVsZXBhcmFtLmg+Cj4gQEAgLTE0NSwxNiArMTQ2LDIyIEBAIHN0YXRp YyBzdHJ1Y3QgaW9tbXVfZG9tYWluICpnYXJ0X2lvbW11X2RvbWFpbl9hbGxvYyh1bnNpZ25lZCB0 eXBlKQo+ICB7Cj4gIAlzdHJ1Y3QgaW9tbXVfZG9tYWluICpkb21haW47CgpIZWxsbywgUm9iaW4h CgpUZWdyYTIwIEdBUlQgaXNuJ3QgYSByZWFsIElPTU1VLCBidXQgYSBzbWFsbCByZWxvY2F0aW9u IGFwZXJ0dXJlLiBXZQp3b3VsZCBvbmx5IHdhbnQgdG8gdXNlIGl0IGZvciBhIHRlbXBvcmFsIG1h cHBpbmdzIChtYW5hZ2VkIGJ5IEdQVQpkcml2ZXIpIGZvciB0aGUgdGltZSB3aGlsZSBHUFUgaGFy ZHdhcmUgaXMgYnVzeSBhbmQgd29ya2luZyB3aXRoIGEKc3BhcnNlIERNQSBidWZmZXJzLCB0aGUg ZHJpdmVyIHdpbGwgdGFrZSBjYXJlIG9mIHVubWFwcGluZyB0aGUgc3BhcnNlCmJ1ZmZlcnMgb25j ZSBHUFUgd29yayBpcyBmaW5pc2hlZCBbMV0uIEluIGEgY2FzZSBvZiBjb250aWd1b3VzIERNQQpi dWZmZXJzLCB3ZSB3YW50IHRvIGJ5cGFzcyB0aGUgSU9NTVUgYW5kIHVzZSBidWZmZXIncyBwaHlz IGFkZHJlc3MKYmVjYXVzZSBHQVJUIGFwZXJ0dXJlIGlzIHNtYWxsIGFuZCBhbGwgYnVmZmVycyBz aW1wbHkgY2FuJ3QgZml0IGludG8KR0FSVCBmb3IgYSBjb21wbGV4IEdQVSBvcGVyYXRpb25zIHRo YXQgaW52b2x2ZSBtdWx0aXBsZSBidWZmZXJzIFsyXVszXS4KVGhlIHVwc3RyZWFtIEdQVSBkcml2 ZXIgc3RpbGwgZG9lc24ndCBzdXBwb3J0IEdBUlQsIGJ1dCBldmVudHVhbGx5IGl0Cm5lZWRzIHRv IGJlIGNoYW5nZWQuCgpbMV0KaHR0cHM6Ly9naXRodWIuY29tL2dyYXRlLWRyaXZlci9saW51eC9i bG9iL21hc3Rlci9kcml2ZXJzL2dwdS9kcm0vdGVncmEvZ2FydC5jI0w0ODkKClsyXQpodHRwczov L2dpdGh1Yi5jb20vZ3JhdGUtZHJpdmVyL2xpbnV4L2Jsb2IvbWFzdGVyL2RyaXZlcnMvZ3B1L2Ry bS90ZWdyYS9nYXJ0LmMjTDU0MgoKWzNdCmh0dHBzOi8vZ2l0aHViLmNvbS9ncmF0ZS1kcml2ZXIv bGludXgvYmxvYi9tYXN0ZXIvZHJpdmVycy9ncHUvZHJtL3RlZ3JhL3VhcGkvcGF0Y2hpbmcuYyNM OTAKCj4gLQlpZiAodHlwZSAhPSBJT01NVV9ET01BSU5fVU5NQU5BR0VEKQo+ICsJaWYgKHR5cGUg IT0gSU9NTVVfRE9NQUlOX1VOTUFOQUdFRCAmJiB0eXBlICE9IElPTU1VX0RPTUFJTl9ETUEpCj4g IAkJcmV0dXJuIE5VTEw7CgpXaWxsIGEgcmV0dXJuZWQgTlVMTCB0ZWxsIHRvIElPTU1VIGNvcmUg dGhhdCBpbXBsaWNpdCBkb21haW4gc2hvdWxkbid0CmJlIHVzZWQ/IElzIGl0IHBvc3NpYmxlIHRv IGxlYXZlIHRoaXMgZHJpdmVyIGFzLWlzPwpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fXwppb21tdSBtYWlsaW5nIGxpc3QKaW9tbXVAbGlzdHMubGludXgtZm91 bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlz dGluZm8vaW9tbXU=