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Fri, 23 Apr 2021 15:01:13 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id IJ3osXayu9Pz for ; Fri, 23 Apr 2021 15:01:12 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by smtp2.osuosl.org (Postfix) with ESMTPS id 6A48F40610 for ; Fri, 23 Apr 2021 15:01:12 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: gtucker) with ESMTPSA id C3FCF1F43D22 Subject: Re: [PATCH v1 2/2] iommu/tegra-smmu: Revert workaround that was needed for Nyan Big Chromebook To: Dmitry Osipenko , Nicolin Chen References: <20210328233256.20494-1-digetx@gmail.com> <20210328233256.20494-2-digetx@gmail.com> <20210401085549.GA31146@Asurada-Nvidia> <50a7e4c7-0e72-534a-a317-366e455213c1@gmail.com> From: Guillaume Tucker Message-ID: Date: Fri, 23 Apr 2021 16:01:06 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.9.0 MIME-Version: 1.0 In-Reply-To: <50a7e4c7-0e72-534a-a317-366e455213c1@gmail.com> Content-Language: en-US Cc: linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Jonathan Hunter , Thierry Reding , linux-tegra@vger.kernel.org, Will Deacon 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" T24gMDIvMDQvMjAyMSAxNTo0MCwgRG1pdHJ5IE9zaXBlbmtvIHdyb3RlOgo+IDAxLjA0LjIwMjEg MTE6NTUsIE5pY29saW4gQ2hlbiDQv9C40YjQtdGCOgo+PiBPbiBNb24sIE1hciAyOSwgMjAyMSBh dCAwMjozMjo1NkFNICswMzAwLCBEbWl0cnkgT3NpcGVua28gd3JvdGU6Cj4+PiBUaGUgcHJldmlv dXMgY29tbWl0IGZpeGVzIHByb2JsZW0gd2hlcmUgZGlzcGxheSBjbGllbnQgd2FzIGF0dGFjaGlu ZyB0b28KPj4+IGVhcmx5IHRvIElPTU1VIGR1cmluZyBrZXJuZWwgYm9vdCBpbiBhIG11bHRpLXBs YXRmb3JtIGtlcm5lbCBjb25maWd1cmF0aW9uCj4+PiB3aGljaCBlbmFibGVzIENPTkZJR19BUk1f RE1BX1VTRV9JT01NVT15LiBUaGUgd29ya2Fyb3VuZCB0aGF0IGhlbHBlZCB0bwo+Pj4gZGVmZXIg dGhlIElPTU1VIGF0dGFjaG1lbnQgZm9yIE55YW4gQmlnIENocm9tZWJvb2sgaXNuJ3QgbmVlZGVk IGFueW1vcmUsCj4+PiByZXZlcnQgaXQuCj4+Cj4+IFNvcnJ5IGZvciB0aGUgbGF0ZSByZXBseS4g SSBoYXZlIGJlZW4gYnVzeSB3aXRoIGRvd25zdHJlYW0gdGFza3MuCj4+Cj4+IEkgd2lsbCBnaXZl IHRoZW0gYSB0cnkgYnkgdGhlIGVuZCBvZiB0aGUgd2Vlay4gWWV0LCBwcm9iYWJseSBpdCdkCj4+ IGJlIGJldHRlciB0byBpbmNsdWRlIEd1aWxsYXVtZSBhbHNvIGFzIGhlIGhhcyB0aGUgTnlhbiBw bGF0Zm9ybS4KPj4KPiAKPiBJbmRlZWQsIHRoYW5rcy4gQWx0aG91Z2gsIEknbSBwcmV0dHkgc3Vy ZSB0aGF0IGl0J3MgdGhlIHNhbWUgaXNzdWUgd2hpY2gKPiBJIHJlcHJvZHVjZWQgb24gTmV4dXMg Ny4KPiAKPiBHdWlsbGF1bWUsIGNvdWxkIHlvdSBwbGVhc2UgZ2l2ZSBhIHRlc3QgdG8gdGhlc2Ug cGF0Y2hlcyBvbiBOeWFuIEJpZz8KPiBUaGVyZSBzaG91bGQgYmUgbm8gRU1FTSBlcnJvcnMgaW4g dGhlIGtlcm5lbCBsb2cgd2l0aCB0aGlzIHBhdGNoZXMuCj4gCj4gaHR0cHM6Ly9wYXRjaHdvcmsu b3psYWJzLm9yZy9wcm9qZWN0L2xpbnV4LXRlZ3JhL2xpc3QvP3Nlcmllcz0yMzYyMTUKClNvIHNv cnJ5IGZvciB0aGUgdmVyeSBsYXRlIHJlcGx5LiAgSSBoYXZlIHRyaWVkIHRoZSBwYXRjaGVzIGJ1 dApoaXQgc29tZSBpc3N1ZXMgb24gbGludXgtbmV4dCwgaXQncyBub3QgcmVhY2hpbmcgYSBsb2dp biBwcm9tcHQKd2l0aCBuZXh0LTIwMjEwNDIyLiAgU28gSSB0aGVuIHRyaWVkIHdpdGggbmV4dC0y MDIxMDQxOSB3aGljaApkb2VzIGJvb3QgYnV0IHNob3dzIHRoZSBJT01NVSBlcnJvcjoKCjw2Plsg ICAgMi45OTUzNDFdIHRlZ3JhLWRjIDU0MjAwMDAwLmRjOiBBZGRpbmcgdG8gaW9tbXUgZ3JvdXAg MQo8ND5bICAgIDMuMDAxMDcwXSBGYWlsZWQgdG8gYXR0YWNoZWQgZGV2aWNlIDU0MjAwMDAwLmRj IHRvIElPTU1VX21hcHBpbmcgIAoKICBodHRwczovL2xhdmEuY29sbGFib3JhLmNvLnVrL3NjaGVk dWxlci9qb2IvMzU3MDA1MiNMMTEyMAoKVGhlIGJyYW5jaCBJJ20gdXNpbmcgd2l0aCB0aGUgcGF0 Y2hlcyBhcHBsaWVkIGNhbiBiZSBmb3VuZCBoZXJlOgoKICBodHRwczovL2dpdGxhYi5jb2xsYWJv cmEuY29tL2d0dWNrZXIvbGludXgvLS9jb21taXRzL25leHQtMjAyMTA0MTktbnlhbi1iaWctZHJt LXJlYWQvCgpIb3BlIHRoaXMgaGVscHMsIGxldCBtZSBrbm93IGlmIHlvdSBuZWVkIGFueXRoaW5n IGVsc2UgdG8gYmUKdGVzdGVkLgoKQmVzdCB3aXNoZXMsCkd1aWxsYXVtZQpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwppb21tdSBtYWlsaW5nIGxpc3QKaW9t bXVAbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRp b24ub3JnL21haWxtYW4vbGlzdGluZm8vaW9tbXU=