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[216.228.112.22]) by smtp.gmail.com with ESMTPSA id x13sm2625375pfj.199.2020.10.02.10.51.31 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Fri, 02 Oct 2020 10:51:31 -0700 (PDT) Date: Fri, 2 Oct 2020 10:45:32 -0700 From: Nicolin Chen To: Dmitry Osipenko Subject: Re: [PATCH v4 3/3] iommu/tegra-smmu: Add PCI support Message-ID: <20201002174532.GA29706@Asurada-Nvidia> References: <20201002060807.32138-1-nicoleotsuka@gmail.com> <20201002060807.32138-4-nicoleotsuka@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.4 (2018-02-28) 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" T24gRnJpLCBPY3QgMDIsIDIwMjAgYXQgMDU6MzU6MjRQTSArMDMwMCwgRG1pdHJ5IE9zaXBlbmtv IHdyb3RlOgo+IDAyLjEwLjIwMjAgMDk6MDgsIE5pY29saW4gQ2hlbiDQv9C40YjQtdGCOgo+ID4g QEAgLTg2NSw3ICs4NjYsMTEgQEAgc3RhdGljIHN0cnVjdCBpb21tdV9ncm91cCAqdGVncmFfc21t dV9kZXZpY2VfZ3JvdXAoc3RydWN0IGRldmljZSAqZGV2KQo+ID4gIAlncm91cC0+c21tdSA9IHNt bXU7Cj4gPiAgCWdyb3VwLT5zb2MgPSBzb2M7Cj4gPiAgCj4gPiAtCWdyb3VwLT5ncm91cCA9IGlv bW11X2dyb3VwX2FsbG9jKCk7Cj4gPiArCWlmIChkZXZfaXNfcGNpKGRldikpCj4gPiArCQlncm91 cC0+Z3JvdXAgPSBwY2lfZGV2aWNlX2dyb3VwKGRldik7Cj4gPiArCWVsc2UKPiA+ICsJCWdyb3Vw LT5ncm91cCA9IGdlbmVyaWNfZGV2aWNlX2dyb3VwKGRldik7Cj4gPiArCj4gPiAgCWlmIChJU19F UlIoZ3JvdXAtPmdyb3VwKSkgewo+ID4gIAkJZGV2bV9rZnJlZShzbW11LT5kZXYsIGdyb3VwKTsK PiA+ICAJCW11dGV4X3VubG9jaygmc21tdS0+bG9jayk7Cj4gPiBAQCAtMTA2OSwyMiArMTA3NCwz MiBAQCBzdHJ1Y3QgdGVncmFfc21tdSAqdGVncmFfc21tdV9wcm9iZShzdHJ1Y3QgZGV2aWNlICpk ZXYsCj4gPiAgCWlvbW11X2RldmljZV9zZXRfZndub2RlKCZzbW11LT5pb21tdSwgZGV2LT5md25v ZGUpOwo+ID4gIAo+ID4gIAllcnIgPSBpb21tdV9kZXZpY2VfcmVnaXN0ZXIoJnNtbXUtPmlvbW11 KTsKPiA+IC0JaWYgKGVycikgewo+ID4gLQkJaW9tbXVfZGV2aWNlX3N5c2ZzX3JlbW92ZSgmc21t dS0+aW9tbXUpOwo+ID4gLQkJcmV0dXJuIEVSUl9QVFIoZXJyKTsKPiA+IC0JfQo+ID4gKwlpZiAo ZXJyKQo+ID4gKwkJZ290byBlcnJfc3lzZnM7Cj4gPiAgCj4gPiAgCWVyciA9IGJ1c19zZXRfaW9t bXUoJnBsYXRmb3JtX2J1c190eXBlLCAmdGVncmFfc21tdV9vcHMpOwo+ID4gLQlpZiAoZXJyIDwg MCkgewo+ID4gLQkJaW9tbXVfZGV2aWNlX3VucmVnaXN0ZXIoJnNtbXUtPmlvbW11KTsKPiA+IC0J CWlvbW11X2RldmljZV9zeXNmc19yZW1vdmUoJnNtbXUtPmlvbW11KTsKPiA+IC0JCXJldHVybiBF UlJfUFRSKGVycik7Cj4gPiAtCX0KPiA+ICsJaWYgKGVyciA8IDApCj4gPiArCQlnb3RvIGVycl91 bnJlZ2lzdGVyOwo+ID4gKwo+ID4gKyNpZmRlZiBDT05GSUdfUENJCj4gPiArCWVyciA9IGJ1c19z ZXRfaW9tbXUoJnBjaV9idXNfdHlwZSwgJnRlZ3JhX3NtbXVfb3BzKTsKPiA+ICsJaWYgKGVyciA8 IDApCj4gPiArCQlnb3RvIGVycl9idXNfc2V0Owo+ID4gKyNlbmRpZgo+ID4gIAo+ID4gIAlpZiAo SVNfRU5BQkxFRChDT05GSUdfREVCVUdfRlMpKQo+ID4gIAkJdGVncmFfc21tdV9kZWJ1Z2ZzX2lu aXQoc21tdSk7Cj4gPiAgCj4gPiAgCXJldHVybiBzbW11Owo+ID4gKwo+ID4gK2Vycl9idXNfc2V0 OiBfX21heWJlX3VudXNlZDsKPiAKPiBfX21heWJlX3VudXNlZD8KCkluIG9yZGVyIHRvIG11dGUg YSBidWlsZCB3YXJuaW5nIHdoZW4gQ09ORklHX1BDST1uLi4uCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCmlvbW11IG1haWxpbmcgbGlzdAppb21tdUBsaXN0 cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczovL2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5vcmcv bWFpbG1hbi9saXN0aW5mby9pb21tdQ==