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[109.252.91.252]) by smtp.googlemail.com with ESMTPSA id w17sm571611lfn.55.2020.10.02.13.12.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 02 Oct 2020 13:12:19 -0700 (PDT) Subject: Re: [PATCH v4 1/3] iommu/tegra-smmu: Use fwspec in tegra_smmu_(de)attach_dev To: Nicolin Chen References: <20201002060807.32138-1-nicoleotsuka@gmail.com> <20201002060807.32138-2-nicoleotsuka@gmail.com> <20201002194508.GD29706@Asurada-Nvidia> From: Dmitry Osipenko Message-ID: Date: Fri, 2 Oct 2020 23:12:18 +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: <20201002194508.GD29706@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 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" MDIuMTAuMjAyMCAyMjo0NSwgTmljb2xpbiBDaGVuINC/0LjRiNC10YI6Cj4gT24gRnJpLCBPY3Qg MDIsIDIwMjAgYXQgMDU6NDE6NTBQTSArMDMwMCwgRG1pdHJ5IE9zaXBlbmtvIHdyb3RlOgo+PiAw Mi4xMC4yMDIwIDA5OjA4LCBOaWNvbGluIENoZW4g0L/QuNGI0LXRgjoKPj4+ICBzdGF0aWMgaW50 IHRlZ3JhX3NtbXVfYXR0YWNoX2RldihzdHJ1Y3QgaW9tbXVfZG9tYWluICpkb21haW4sCj4+PiAg CQkJCSBzdHJ1Y3QgZGV2aWNlICpkZXYpCj4+PiAgewo+Pj4gKwlzdHJ1Y3QgaW9tbXVfZndzcGVj ICpmd3NwZWMgPSBkZXZfaW9tbXVfZndzcGVjX2dldChkZXYpOwo+Pj4gIAlzdHJ1Y3QgdGVncmFf c21tdSAqc21tdSA9IGRldl9pb21tdV9wcml2X2dldChkZXYpOwo+Pj4gIAlzdHJ1Y3QgdGVncmFf c21tdV9hcyAqYXMgPSB0b19zbW11X2FzKGRvbWFpbik7Cj4+PiAtCXN0cnVjdCBkZXZpY2Vfbm9k ZSAqbnAgPSBkZXYtPm9mX25vZGU7Cj4+PiAtCXN0cnVjdCBvZl9waGFuZGxlX2FyZ3MgYXJnczsK Pj4+ICAJdW5zaWduZWQgaW50IGluZGV4ID0gMDsKPj4+ICAJaW50IGVyciA9IDA7Cj4+PiAgCj4+ PiAtCXdoaWxlICghb2ZfcGFyc2VfcGhhbmRsZV93aXRoX2FyZ3MobnAsICJpb21tdXMiLCAiI2lv bW11LWNlbGxzIiwgaW5kZXgsCj4+PiAtCQkJCQkgICAmYXJncykpIHsKPj4+IC0JCXVuc2lnbmVk IGludCBzd2dyb3VwID0gYXJncy5hcmdzWzBdOwo+Pj4gLQo+Pj4gLQkJaWYgKGFyZ3MubnAgIT0g c21tdS0+ZGV2LT5vZl9ub2RlKSB7Cj4+PiAtCQkJb2Zfbm9kZV9wdXQoYXJncy5ucCk7Cj4+PiAt CQkJY29udGludWU7Cj4+PiAtCQl9Cj4+PiAtCj4+PiAtCQlvZl9ub2RlX3B1dChhcmdzLm5wKTsK Pj4+ICsJaWYgKCFmd3NwZWMpCj4+PiArCQlyZXR1cm4gLUVOT0VOVDsKPj4KPj4gQ291bGQgdGhl ICFmd3NwZWMgZXZlciBiZSB0cnVlIGhlcmUgYXMgd2VsbD8KPiAKPiBUaGVyZSBhcmUgbXVsdGlw bGUgY2FsbGVycyBvZiB0aGlzIGZ1bmN0aW9uLiBJdCdzIHJlYWxseSBub3QgdGhhdAo+IHN0cmFp Z2h0Zm9yd2FyZCB0byB0cmFjayBldmVyeSBvbmUgb2YgdGhlbS4gU28gSSdkIHJhdGhlciBoYXZl IGl0Cj4gaGVyZSBhcyBvdGhlciBpb21tdSBkcml2ZXJzIGRvLiBXZSBhcmUgaHVtYW4gYmVpbmdz LCBzbyB3ZSBjb3VsZAo+IGhhdmUgbWlzc2VkIHNvbWV0aGluZyBzb21ld2hlcmUsIGVzcGVjaWFs bHkgY2FsbGVycyBhcmUgbm90IGZyb20KPiB0ZWdyYS0qIGRyaXZlcnMuCj4gCgpJJ20gbG9va2lu ZyBhdCB0aGUgSU9NTVUgY29yZSBhbmQgaXQgcmVxdWlyZXMgZGV2aWNlIHRvIGJlIGluIElPTU1V Cmdyb3VwIGJlZm9yZSBhdHRhY2hfZGV2KCkgY291bGQgYmUgY2FsbGVkLgoKVGhlIGdyb3VwIGNh bid0IGJlIGFzc2lnbmVkIHRvIGRldmljZSB3aXRob3V0IHRoZSBmd3NwZWMsIHNlZQp0ZWdyYV9z bW11X2RldmljZV9ncm91cCgpLgoKU2VlbXMgbWFqb3JpdHkgb2YgSU9NTVUgZHJpdmVycyBhcmUg Y2hlY2tpbmcgZGV2X2lvbW11X3ByaXZfZ2V0KCkgZm9yCk5VTEwgaW4gYXR0YWNoX2RldigpLCBz b21lIG5vdCBjaGVja2luZyBhbnl0aGluZywgc29tZSBjaGVjayBib3RoIGFuZApvbmx5IGFybS1z bW11IGNoZWNrcyB0aGUgZndzcGVjLgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwppb21tdSBtYWlsaW5nIGxpc3QKaW9tbXVAbGlzdHMubGludXgtZm91bmRh dGlvbi5vcmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGlu Zm8vaW9tbXU=