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d="scan'208";a="490587560" Received: from allen-box.sh.intel.com (HELO [10.239.159.118]) ([10.239.159.118]) by fmsmga002.fm.intel.com with ESMTP; 23 Jun 2021 00:23:00 -0700 Subject: Re: [PATCH v14 6/6] iommu: Remove mode argument from iommu_set_dma_strict() To: Robin Murphy , John Garry , joro@8bytes.org, will@kernel.org, dwmw2@infradead.org, corbet@lwn.net References: <1624016058-189713-1-git-send-email-john.garry@huawei.com> <1624016058-189713-7-git-send-email-john.garry@huawei.com> <60bdd7c3-d73e-c005-ddf7-069bc5065bce@huawei.com> <855dd109-1449-7bc6-3d25-7ffeeeffa82a@linux.intel.com> <2330bb52-1768-5122-9378-7923034c82bd@arm.com> <5564e4b7-99af-c357-594a-1a6efe0c1464@linux.intel.com> From: Lu Baolu Message-ID: <3f8b003a-98bd-df7b-eacc-50c04e0177b1@linux.intel.com> Date: Wed, 23 Jun 2021 15:21:25 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Cc: linux-doc@vger.kernel.org, linuxarm@huawei.com, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.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-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" T24gNi8yMy8yMSA2OjI1IEFNLCBSb2JpbiBNdXJwaHkgd3JvdGU6Cj4gT24gMjAyMS0wNi0yMSAx NTozMiwgTHUgQmFvbHUgd3JvdGU6Cj4+IEhpIFJvYmluLAo+Pgo+PiBPbiAyMDIxLzYvMjEgMTk6 NTksIFJvYmluIE11cnBoeSB3cm90ZToKPj4+IE9uIDIwMjEtMDYtMjEgMTE6MzQsIEpvaG4gR2Fy cnkgd3JvdGU6Cj4+Pj4gT24gMjEvMDYvMjAyMSAxMTowMCwgTHUgQmFvbHUgd3JvdGU6Cj4+Pj4+ PiB2b2lkIGlvbW11X3NldF9kbWFfc3RyaWN0KGJvb2wgZm9yY2UpCj4+Pj4+PiB7Cj4+Pj4+PiDC oMKgwqDCoMKgwqDCoMKgwqAgaWYgKGZvcmNlID09IHRydWUpCj4+Pj4+PiDCoMKgwqDCoMKgwqDC oMKgIGlvbW11X2RtYV9zdHJpY3QgPSB0cnVlOwo+Pj4+Pj4gwqDCoMKgwqDCoGVsc2UgaWYgKCEo aW9tbXVfY21kX2xpbmUgJiBJT01NVV9DTURfTElORV9TVFJJQ1QpKQo+Pj4+Pj4gwqDCoMKgwqDC oMKgwqDCoCBpb21tdV9kbWFfc3RyaWN0ID0gdHJ1ZTsKPj4+Pj4+IH0KPj4+Pj4+Cj4+Pj4+PiBT byB3ZSB3b3VsZCB1c2UgaW9tbXVfc2V0X2RtYV9zdHJpY3QodHJ1ZSkgZm9yIGEpIGFuZCBiKSwg YnV0IAo+Pj4+Pj4gaW9tbXVfc2V0X2RtYV9zdHJpY3QoZmFsc2UpIGZvciBjKS4KPj4+Pj4KPj4+ Pj4gWWVzLiBXZSBuZWVkIHRvIGRpc3Rpbmd1aXNoIHRoZSAibXVzdCIgYW5kICJuaWNlLXRvLWhh dmUiIGNhc2VzIG9mCj4+Pj4+IHNldHRpbmcgc3RyaWN0IG1vZGUuCj4+Pj4+Cj4+Pj4+Pgo+Pj4+ Pj4gVGhlbiBJIGFtIG5vdCBzdXJlIHdoYXQgeW91IHdhbnQgdG8gZG8gd2l0aCB0aGUgYWNjb21w YW55aW5nIHByaW50IAo+Pj4+Pj4gZm9yIGMpLiBJdCB3YXM6Cj4+Pj4+PiAiSU9NTVUgYmF0Y2hp bmcgaXMgZGlzYWJsZWQgZHVlIHRvIHZpcnR1YWxpemF0aW9uIgo+Pj4+Pj4KPj4+Pj4+IEFuZCBu b3cgaXMgZnJvbSB0aGlzIHNlcmllczoKPj4+Pj4+ICJJT01NVSBiYXRjaGluZyBkaXNhbGxvd2Vk IGR1ZSB0byB2aXJ0dWFsaXphdGlvbiIKPj4+Pj4+Cj4+Pj4+PiBVc2luZyBpb21tdV9nZXRfZG1h X3N0cmljdChkb21haW4pIGlzIG5vdCBhcHByb3ByaWF0ZSBoZXJlIHRvIGtub3cgCj4+Pj4+PiB0 aGUgY3VycmVudCBtb2RlIChzbyB3ZSBrbm93IHdoZXRoZXIgdG8gcHJpbnQpLgo+Pj4+Pj4KPj4+ Pj4+IE5vdGUgdGhhdCB0aGlzIGNoYW5nZSB3b3VsZCBtZWFuIHRoYXQgdGhlIGN1cnJlbnQgc2Vy aWVzIHdvdWxkIAo+Pj4+Pj4gcmVxdWlyZSBub24tdHJpdmlhbCByZXdvcmssIHdoaWNoIHdvdWxk IGJlIHVuZm9ydHVuYXRlIHNvIGxhdGUgaW4gCj4+Pj4+PiB0aGUgY3ljbGUuCj4+Pj4+Cj4+Pj4+ IFRoaXMgcGF0Y2ggc2VyaWVzIGxvb2tzIGdvb2QgdG8gbWUgYW5kIEkgaGF2ZSBhZGRlZCBieSBy ZXZpZXdlZC1ieS4KPj4+Pj4gUHJvYmFibHkgd2UgY291bGQgbWFrZSBhbm90aGVyIHBhdGNoIHNl cmllcyB0byBpbXByb3ZlIGl0IHNvIHRoYXQgdGhlCj4+Pj4+IGtlcm5lbCBvcHRpbWl6YXRpb24g c2hvdWxkIG5vdCBvdmVycmlkZSB0aGUgdXNlciBzZXR0aW5nLgo+Pj4+Cj4+Pj4gT24gYSBwZXJz b25hbCBsZXZlbCBJIHdvdWxkIGJlIGhhcHB5IHdpdGggdGhhdCBhcHByb2FjaCwgYnV0IEkgdGhp bmsgCj4+Pj4gaXQncyBiZXR0ZXIgdG8gbm90IHN0YXJ0IGNoYW5naW5nIHRoaW5ncyByaWdodCBh d2F5IGluIGEgZm9sbG93LXVwIAo+Pj4+IHNlcmllcy4KPj4+Pgo+Pj4+IFNvIGhvdyBhYm91dCB3 ZSBhZGQgdGhpcyBwYXRjaCAod2hpY2ggcmVwbGFjZXMgNi82ICJpb21tdTogUmVtb3ZlIAo+Pj4+ IG1vZGUgYXJndW1lbnQgZnJvbSBpb21tdV9zZXRfZG1hX3N0cmljdCgpIik/Cj4+Pj4KPj4+PiBS b2JpbiwgYW55IG9waW5pb24/Cj4+Pgo+Pj4gRm9yIG1lIGl0IGJvaWxzIGRvd24gdG8gd2hldGhl ciB0aGVyZSBhcmUgYW55IHJlYWxpc3RpYyB3b3JrbG9hZHMgCj4+PiB3aGVyZSBub24tc3RyaWN0 IG1vZGUgKndvdWxkKiBzdGlsbCBwZXJmb3JtIGJldHRlciB1bmRlciAKPj4+IHZpcnR1YWxpc2F0 aW9uLiBUaGUgCj4+Cj4+IEF0IHByZXNlbnQsIHdlIHNlZSB0aGF0IHN0cmljdCBtb2RlIGhhcyBi ZXR0ZXIgcGVyZm9ybWFuY2UgaW4gdGhlCj4+IHZpcnR1YWxpemF0aW9uIGVudmlyb25tZW50IGJl Y2F1c2UgaXQgd2lsbCBtYWtlIHRoZSBzaGFkb3cgcGFnZSB0YWJsZQo+PiBtYW5hZ2VtZW50IG1v cmUgZWZmaWNpZW50LiBXaGVuIHRoZSBoYXJkd2FyZSBzdXBwb3J0cyBuZXN0ZWQKPj4gdHJhbnNs YXRpb24sIHdlIG1heSBoYXZlIHRvIHJlLWV2YWx1YXRlIHRoaXMgc2luY2UgdGhlcmUncyBubyBu ZWVkIGZvcgo+PiBhIHNoYWRvd2luZyBwYWdlIHRhYmxlIGFueW1vcmUuCj4gCj4gSSBndWVzcyBJ IHdhcyBhc3N1bWluZyB0aGF0IGluIG1vc3QgY2FzZXMsIHByb3BlciBuZXN0ZWQgbW9kZSBjb3Vs ZCBsb29rIAo+IGRpc3RpbmN0IGVub3VnaCB0aGF0IHdlJ2QgYmUgYWJsZSB0byB0cmVhdCBpdCBk aWZmZXJlbnRseSBpbiB0aGUgZmlyc3QgCj4gcGxhY2UuIEZvciBpbnN0YW5jZSwgaWYgaXQncyBo YW5kaW5nIGd1ZXN0IHRhYmxlcyBkaXJlY3RseSB0byB0aGUgCj4gaGFyZHdhcmUsIHdvdWxkIHRo ZSBob3N0IGhhdmUgYW55IHJlYXNvbiB0byBzdGlsbCBzZXQgdGhlICJjYWNoaW5nIG1vZGUiIAo+ IElEIGJpdD8KCkZvciBJbnRlbCBWVC1kLCB5ZXMsIHNpbXBseSBmb3IgY29tcGF0aWJsZSBwdXJw b3NlLiBUaGUgZ3Vlc3Qga2VybmVsCm1heSB1c2UgcGFnZSB0YWJsZXMgdGhhdCBhcmUgbm90IGNv bXBhdGlibGUgd2l0aCB0aGUgZmlyc3QgbGV2ZWwKdHJhbnNsYXRpb24uIEluIHRoaXMgY2FzZSwg d2UgbXVzdCByb2xsIGJhY2sgdG8gc2hhZG93IHBhZ2UgdGFibGUuCgo+IAo+IFJvYmluLgoKQmVz dCByZWdhcmRzLApiYW9sdQpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fXwppb21tdSBtYWlsaW5nIGxpc3QKaW9tbXVAbGlzdHMubGludXgtZm91bmRhdGlvbi5v cmcKaHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vaW9t bXU=