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Tue, 8 Feb 2022 11:56:53 +0000 Message-ID: <144329a3-8125-1975-7f23-a247343a679e@huawei.com> Date: Tue, 8 Feb 2022 11:56:48 +0000 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.5.1 Subject: Re: [PATCH v3 8/8] iommu/arm-smmu-v3: Make default domain type of HiSilicon PTT device to identity To: Yicong Yang , Yicong Yang , "gregkh@linuxfoundation.org" , "helgaas@kernel.org" , "alexander.shishkin@linux.intel.com" , "lorenzo.pieralisi@arm.com" , "will@kernel.org" , "mark.rutland@arm.com" , "mathieu.poirier@linaro.org" , "suzuki.poulose@arm.com" , "mike.leach@linaro.org" , "leo.yan@linaro.org" , "Jonathan Cameron" , "daniel.thompson@linaro.org" , "joro@8bytes.org" , "Shameerali Kolothum Thodi" , "robin.murphy@arm.com" , "peterz@infradead.org" , "mingo@redhat.com" , "acme@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "coresight@lists.linaro.org" , "linux-pci@vger.kernel.org" , "linux-perf-users@vger.kernel.org" , "iommu@lists.linux-foundation.org" CC: "Zengtao (B)" , "liuqi (BA)" , Zhangshaokun , Linuxarm , "Song Bao Hua (Barry Song)" References: <20220124131118.17887-1-yangyicong@hisilicon.com> <20220124131118.17887-9-yangyicong@hisilicon.com> <4f6f6e0f-4398-3018-cc35-6aa7ea1305fe@huawei.com> From: John Garry In-Reply-To: X-Originating-IP: [10.47.82.28] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To lhreml724-chm.china.huawei.com (10.201.108.75) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220208_035713_477310_9EC47EA3 X-CRM114-Status: GOOD ( 14.79 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gMDgvMDIvMjAyMiAxMToyMSwgWWljb25nIFlhbmcgd3JvdGU6Cj4+IFRoaXMgcGF0Y2ggc2hv dWxkIGJlIGVhcmxpZXIgaW4gdGhlIHNlcmllcywgYmVmb3JlIHRoZSBQVFQgZHJpdmVyLCBhbmQg dGhlIGNvbW1lbnQgb24gaGlzaV9wdHRfY2hlY2tfaW9tbXVfbWFwcGluZygpIHNob3VsZCBtZW50 aW9uIHdoYXQgaXMgZ29pbmcgb24gaGVyZS4KPj4KPiBvayBJJ2xsIHJlb3JkZXIgdGhlIHNlcml2 ZXMgYW5kIG1vZGlmeSB0aGUgY29tbWVudHMgb2YgaGlzaV9wdHRfY2hlY2tfaW9tbXVfbWFwcGlu ZygpIGxpa2U6Cj4gCj4gLyoKPiAgICogVGhlIERNQSBvZiBQVFQgdHJhY2UgY2FuIG9ubHkgdXNl IGRpcmVjdCBtYXBwaW5nLCBkdWUgdG8gc29tZQo+ICAgKiBoYXJkd2FyZSByZXN0cmljdGlvbi4g Q2hlY2sgd2hldGhlciB0aGVyZSBpcyBhbiBpb21tdSBvciB0aGUKPiAgICogcG9saWN5IG9mIHRo ZSBpb21tdSBkb21haW4gaXMgcGFzc3Rocm91Z2gsIG90aGVyd2lzZSB0aGUgdHJhY2UKPiAgICog Y2Fubm90IHdvcmsuCgpJT01NVSwgY2FwaXRhbGl6ZSBhY3JvbnltcwoKPiAgICoKPiAgICogVGhl IFBUVCBkZXZpY2UgaXMgc3VwcG9zZWQgdG8gYmVoaW5kIHRoZSBhcm0gc21tdSB2Mywgd2hpY2gK PiAgICogc2hvdWxkIGhhdmUgcGFzc3Rocm91Z2ggdGhlIGRldmljZSBieSBhIHF1aXJrLiBPdGhl cndpc2UgdXNlcgo+ICAgKiBzaG91bGQgbWFudWFsbHkgc2V0IHRoZSBpb21tdSBkb21haW4gdHlw ZSB0byBpZGVudGl0eSB0aHJvdWdoCj4gICAqIHN5c2ZzLgoKU29ycnksIGJ1dCBJIGRvbid0IHJl YWxseSB1bmRlcnN0YW5kIHlvdXIgbWVhbmluZyBoZXJlLgoKSSBkaWQgbm90IHRoaW5rIHRoYXQg aWYgd2UgaGF2ZSBhIGRlZmF1bHQgZG9tYWluIHRoZW4gd2UgY2FuIGNoYW5nZSB2aWEgCnN5c2Zz IHRvIGFueXRoaW5nIGVsc2UuCgo+ICAgKi8KPiAKPj4+IFNpZ25lZC1vZmYtYnk6IFlpY29uZyBZ YW5nPHlhbmd5aWNvbmdAaGlzaWxpY29uLmNvbT4KPj4+IC0tLQo+Pj4gIMKgIGRyaXZlcnMvaW9t bXUvYXJtL2FybS1zbW11LXYzL2FybS1zbW11LXYzLmMgfCAxNiArKysrKysrKysrKysrKysrCj4+ PiAgwqAgMSBmaWxlIGNoYW5nZWQsIDE2IGluc2VydGlvbnMoKykKPj4+Cj4+PiBkaWZmIC0tZ2l0 IGEvZHJpdmVycy9pb21tdS9hcm0vYXJtLXNtbXUtdjMvYXJtLXNtbXUtdjMuYyBiL2RyaXZlcnMv aW9tbXUvYXJtL2FybS1zbW11LXYzL2FybS1zbW11LXYzLmMKPj4+IGluZGV4IDZkYzZkOGI2YjM2 OC4uNmY2N2EyYjFkZDI3IDEwMDY0NAo+Pj4gLS0tIGEvZHJpdmVycy9pb21tdS9hcm0vYXJtLXNt bXUtdjMvYXJtLXNtbXUtdjMuYwo+Pj4gKysrIGIvZHJpdmVycy9pb21tdS9hcm0vYXJtLXNtbXUt djMvYXJtLXNtbXUtdjMuYwo+Pj4gQEAgLTI4MzgsNiArMjgzOCwyMSBAQCBzdGF0aWMgaW50IGFy bV9zbW11X2Rldl9kaXNhYmxlX2ZlYXR1cmUoc3RydWN0IGRldmljZSAqZGV2LAo+Pj4gIMKgwqDC oMKgwqAgfQo+Pj4gIMKgIH0KPj4+ICDCoCArI2RlZmluZSBJU19ISVNJX1BUVF9ERVZJQ0UocGRl dinCoMKgwqAgKChwZGV2KS0+dmVuZG9yID09IFBDSV9WRU5ET1JfSURfSFVBV0VJICYmIFwKPj4+ ICvCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgIChwZGV2KS0+ZGV2aWNl ID09IDB4YTEyZSkKPj4gSSBhc3N1bWUgdGhhdCBub3QgYWxsIHJldmlzaW9ucyB3aWxsIHJlcXVp cmUgdGhpcyBjaGVjaywgcmlnaHQ/CgpTbyBpZiB5b3UgYXJlIHZlcnkgY29uZmlkZW50IHRoYXQg dGhlIG5leHQgcmV2aXNpb24gd2lsbCBiZSBmaXhlZCB0aGVuIEkgCndvdWxkIGFkZCBhIGNoZWNr IGZvciB0aGlzIGN1cnJlbnQgYnJva2VuIHJldmlzaW9uLgoKPj4KPiBGb3IgY3VycmVudCByZXZp c2lvbnMgaXQncyBuZWNlc3NhcnkuCj4gCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJt LWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21h aWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=