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[94.29.62.67]) by smtp.googlemail.com with ESMTPSA id u16sm1798222ljl.9.2021.09.15.05.09.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 15 Sep 2021 05:09:49 -0700 (PDT) Subject: Re: [PATCH v6 6/6] iommu/tegra-smmu: Add pagetable mappings to debugfs To: Nicolin Chen References: <20210914013858.31192-1-nicoleotsuka@gmail.com> <20210914013858.31192-7-nicoleotsuka@gmail.com> <31501a62-3312-9f04-3bb8-790d0481746c@gmail.com> <20210914184933.GA32705@Asurada-Nvidia> <25d68aff-323a-df54-45f9-55b22f3089e0@gmail.com> <20210915043806.GA19185@Asurada-Nvidia> From: Dmitry Osipenko Message-ID: Date: Wed, 15 Sep 2021 15:09:48 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <20210915043806.GA19185@Asurada-Nvidia> Content-Language: en-US Cc: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, jonathanh@nvidia.com, thierry.reding@gmail.com, linux-tegra@vger.kernel.org, will@kernel.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" MTUuMDkuMjAyMSAwNzozOCwgTmljb2xpbiBDaGVuINC/0LjRiNC10YI6Cj4gT24gVHVlLCBTZXAg MTQsIDIwMjEgYXQgMTA6MjA6MzBQTSArMDMwMCwgRG1pdHJ5IE9zaXBlbmtvIHdyb3RlOgo+PiAx NC4wOS4yMDIxIDIxOjQ5LCBOaWNvbGluIENoZW4g0L/QuNGI0LXRgjoKPj4+IE9uIFR1ZSwgU2Vw IDE0LCAyMDIxIGF0IDA0OjI5OjE1UE0gKzAzMDAsIERtaXRyeSBPc2lwZW5rbyB3cm90ZToKPj4+ PiAxNC4wOS4yMDIxIDA0OjM4LCBOaWNvbGluIENoZW4g0L/QuNGI0LXRgjoKPj4+Pj4gK3N0YXRp YyB1bnNpZ25lZCBsb25nIHBkX3B0X2luZGV4X2lvdmEodW5zaWduZWQgaW50IHBkX2luZGV4LCB1 bnNpZ25lZCBpbnQgcHRfaW5kZXgpCj4+Pj4+ICt7Cj4+Pj4+ICsJcmV0dXJuICgoZG1hX2FkZHJf dClwZF9pbmRleCAmIChTTU1VX05VTV9QREUgLSAxKSkgPDwgU01NVV9QREVfU0hJRlQgfAo+Pj4+ PiArCSAgICAgICAoKGRtYV9hZGRyX3QpcHRfaW5kZXggJiAoU01NVV9OVU1fUFRFIC0gMSkpIDw8 IFNNTVVfUFRFX1NISUZUOwo+Pj4+PiArfQo+Pj4+Cj4+Pj4gV2Uga25vdyB0aGF0IElPVkEgaXMg Zml4ZWQgdG8gdTMyIGZvciB0aGlzIGNvbnRyb2xsZXIuIENhbiB3ZSBhdm9pZCBhbGwKPj4+PiB0 aGVzZSBkbWFfYWRkcl90IGNhc3RpbmdzPyBJdCBzaG91bGQgbWFrZSBjb2RlIGNsZWFuZXIgYSB0 YWQsIElNTy4KPj4+Cj4+PiBUZWdyYTIxMCBhY3R1YWxseSBzdXBwb3J0cyAzNC1iaXQgSU9WQS4u Lgo+Pj4KPj4KPj4gSXQgZG9lc24ndC4gMzQtYml0IGlzIFBBLCAzMi1iaXQgaXMgVkEuCj4+Cj4+ IFF1b3RlIGZyb20gVDIxMCBUUk06Cj4+Cj4+ICJUaGUgU01NVSBpcyBhIGNlbnRyYWxpemVkIHZp cnR1YWwtdG8tcGh5c2ljYWwgdHJhbnNsYXRpb24gZm9yIE1TUy4gSXQKPj4gbWFwcyBhIDMyLWJp dCB2aXJ0dWFsIGFkZHJlc3MgdG8gYSAzNC1iaXQgcGh5c2ljYWwgYWRkcmVzcy4gSWYgdGhlCj4+ IGNsaWVudCBhZGRyZXNzIGlzIDQwIGJpdHMgdGhlbiBiaXRzIDM5OjMyIGFyZSBpZ25vcmVkLiIK PiAKPiBJZiB5b3Ugc2Nyb2xsIGRvd24gYnkgYSBjb3VwbGUgb2Ygc2VjdGlvbnMsIHlvdSBjYW4g c2VlIDM0LWJpdAo+IHZpcnR1YWwgYWRkcmVzc2VzIGluIHNlY3Rpb24gMTguNi4xLjI7IGFuZCBp ZiBjaGVja2luZyBvbmUgQVNJRAo+IHJlZ2lzdGVyLCB5b3UgY2FuIHNlZSBpdCBtZW50aW9uIHRo ZSBleHRyYSB0d28gYml0cyB2YVszMzozMl0uCgpUaGFua3MgZm9yIHRoZSBwb2ludGVyLiBJdCBz YXlzIHRoYXQgb25seSBjZXJ0YWluIG1lbW9yeSBjbGllbnRzIGFsbG93CnRvIGNvbWJpbmUgNCBB U0lEcyB0byBmb3JtIDM0Yml0IFZBIHNwYWNlLiBJbiB0aGlzIGNhc2UgdGhlIFBBIHNwYWNlIGlz CnNwbGl0IGludG8gNEdCIGFyZWFzIGFuZCB0aGVyZSBhcmUgYWRkaXRpb25hbCBiaXRmaWVsZHMg d2hpY2ggY29uZmlndXJlCnRoZSBBU0lEIG1hcHBpbmcgb2YgZWFjaCA0R0IgYXJlYS4gU3RpbGwg ZWFjaCBBU0lEIGlzIDMyYml0LgoKVGhpcyBpcyB3aGF0IFRSTSBzYXlzOgoKIkZvciB0aGUgR1BV IGFuZCBvdGhlciBjbGllbnRzIHdpdGggMzQtYml0IGFkZHJlc3MgaW50ZXJmYWNlcywgdGhlIEFT SUQKcmVnaXN0ZXJzIGFyZSBleHRlbmRlZCB0byBwb2ludCB0byBmb3VyIEFTSURzLiBUaGUgU01N VSBzdXBwb3J0cyA0R0Igb2YKdmlydHVhbCBhZGRyZXNzIHNwYWNlIHBlciBBU0lELCBzbyBtYXBw aW5nIGFkZHJbMzM6MzJdIGludG8gQVNJRFsxOjBdCmV4dGVuZHMgdGhlIHZpcnR1YWwgYWRkcmVz cyBzcGFjZSBvZiBhIGNsaWVudCB0byAxNkdCLiIKCj4gSG93ZXZlciwgdGhlIGRyaXZlciBjdXJy ZW50bHkgc2V0cyBpdHMgZ2VvbWV0cnkuYXBlcnR1cmVfZW5kIHRvCj4gMzItYml0LCBhbmQgd2Ug Y2FuIG9ubHkgZ2V0IDMyLWJpdCBJT1ZBcyB1c2luZyBQREUgYW5kIFBURSBvbmx5LAo+IHNvIEkg dGhpbmsgaXQgc2hvdWxkIGJlIHNhZmUgdG8gcmVtb3ZlIHRoZSBjYXN0aW5ncyBoZXJlLiBJJ2xs Cj4gd2FpdCBmb3IgYSBjb3VwbGUgb2YgZGF5cyBhbmQgc2VlIGlmIHRoZXJlJ2QgYmUgb3RoZXIg Y29tbWVudHMKPiBmb3IgbWUgdG8gYWRkcmVzcyBpbiBuZXh0IHZlcnNpb24uCgpZb3Ugd2lsbCBu ZWVkIHRvIHJlYWQgdGhlIHNwZWNpYWwgIkFTSUQgQXNzaWdubWVudCBSZWdpc3RlciIgd2hpY2gK c3VwcG9ydHMgNCBzdWItQVNJRHMgdG8gdHJhbnNsYXRlIHRoZSBQQSBhZGRyZXNzIGludG8gdGhl IGFjdHVhbCBWQS4gQnkKZGVmYXVsdCBhbGwgY2xpZW50cyBhcmUgbGltaXRlZCB0byBhIHNpbmds ZSBBU0lEIGFuZCB1cHN0cmVhbSBrZXJuZWwKZG9lc24ndCBzdXBwb3J0IHByb2dyYW1taW5nIG9m IDM0Yml0IFZBcy4gU28gZG9lc24ndCB3b3J0aCB0aGUgZWZmb3J0IHRvCmZ1bGx5IHRyYW5zbGF0 ZSB0aGUgVkEsIElNTy4KCj4+IEV2ZW4gaWYgaXQgc3VwcG9ydGVkIG1vcmUgdGhhbiAzMmJpdCwg dGhlbiB0aGUgcmV0dXJuZWQgdWxvbmcgaXMgMzJiaXQsCj4+IHdoaWNoIGRvZXNuJ3QgbWFrZSBz ZW5zZS4KPiAKPiBPbiBBUk02NCAoVGVncmEyMTApLCBpc24ndCB1bG9uZyA2NC1iaXQ/CgpZZXMs IGluZGVlZC4KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K aW9tbXUgbWFpbGluZyBsaXN0CmlvbW11QGxpc3RzLmxpbnV4LWZvdW5kYXRpb24ub3JnCmh0dHBz Oi8vbGlzdHMubGludXhmb3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2lvbW11