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Thu, 24 Dec 2020 19:27:36 +0800 Message-ID: <1608809257.26323.259.camel@mhfsdcap03> Subject: Re: [PATCH v3 1/7] iommu: Move iotlb_sync_map out from __iommu_map From: Yong Wu To: Christoph Hellwig CC: Joerg Roedel , Will Deacon , "Robin Murphy" , , , Nicolas Boichat , , , , Krzysztof Kozlowski , "Tomasz Figa" , , , Matthias Brugger , Greg Kroah-Hartman , , Date: Thu, 24 Dec 2020 19:27:37 +0800 In-Reply-To: <20201223085153.GA30643@infradead.org> References: <20201216103607.23050-1-yong.wu@mediatek.com> <20201216103607.23050-2-yong.wu@mediatek.com> <20201223085153.GA30643@infradead.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 MIME-Version: 1.0 X-TM-SNTS-SMTP: FBCE9ED43BF43E3D7C20C416E2E03E98E6E841E4758068BCA32988C6FE2A5E212000:8 X-MTK: N Content-Transfer-Encoding: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gV2VkLCAyMDIwLTEyLTIzIGF0IDA4OjUxICswMDAwLCBDaHJpc3RvcGggSGVsbHdpZyB3cm90 ZToNCj4gT24gV2VkLCBEZWMgMTYsIDIwMjAgYXQgMDY6MzY6MDFQTSArMDgwMCwgWW9uZyBXdSB3 cm90ZToNCj4gPiBJbiB0aGUgZW5kIG9mIF9faW9tbXVfbWFwLCBJdCBhbHdheSBjYWxsIGlvdGxi X3N5bmNfbWFwLg0KPiA+IFRoaXMgcGF0Y2ggbW92ZXMgaW90bGJfc3luY19tYXAgb3V0IGZyb20g X19pb21tdV9tYXAgc2luY2UgaXQgaXMNCj4gPiB1bm5lY2Vzc2FyeSB0byBjYWxsIHRoaXMgZm9y IGVhY2ggc2cgc2VnbWVudCBlc3BlY2lhbGx5IGlvdGxiX3N5bmNfbWFwDQo+ID4gaXMgZmx1c2gg dGxiIGFsbCBjdXJyZW50bHkuDQo+ID4gDQo+ID4gU2lnbmVkLW9mZi1ieTogWW9uZyBXdSA8eW9u Zy53dUBtZWRpYXRlay5jb20+DQo+ID4gUmV2aWV3ZWQtYnk6IFJvYmluIE11cnBoeSA8cm9iaW4u bXVycGh5QGFybS5jb20+DQo+IA0KPiBXaGF0IGFib3V0IGFkZGluZyBhIGxpdHRsZSBoZWxwZXIg dGhhdCBkb2VzIHRoZSBOVUxMIGNoZWNrIGFuZCBtZXRob2QNCj4gY2FsbCBpbnN0ZWFkIG9mIGR1 cGxpY2F0aW5nIGl0IGFsbCBvdmVyPw0KDQpUaGFua3MgZm9yIHRoZSByZXZpZXcuIE9mIGNvdXJz ZSBPSy4NCg0KVGhlbiB0aGUgY29kZSBsaWtlIGJlbG93LiANCihJZiB0aGUgaGVscGVyIG5hbWUg Il9pb21tdV9tYXAiIGlzIG5vdCBnb29kLCBwbGVhc2UgdGVsbCBtZS4pDQoNCitzdGF0aWMgaW50 IF9pb21tdV9tYXAoc3RydWN0IGlvbW11X2RvbWFpbiAqZG9tYWluLCB1bnNpZ25lZCBsb25nIGlv dmEsDQorCQkgICAgICAgcGh5c19hZGRyX3QgcGFkZHIsIHNpemVfdCBzaXplLCBpbnQgcHJvdCwg Z2ZwX3QgZ2ZwKQ0KK3sNCisJY29uc3Qgc3RydWN0IGlvbW11X29wcyAqb3BzID0gZG9tYWluLT5v cHM7DQorCWludCByZXQ7DQorDQorCXJldCA9IF9faW9tbXVfbWFwKGRvbWFpbiwgaW92YSwgcGFk ZHIsIHNpemUsIHByb3QsIGdmcCk7DQorCWlmIChyZXQgPT0gMCAmJiBvcHMtPmlvdGxiX3N5bmNf bWFwKQ0KKwkJb3BzLT5pb3RsYl9zeW5jX21hcChkb21haW4pOw0KKwlyZXR1cm4gcmV0Ow0KK30N CisNCiBpbnQgaW9tbXVfbWFwKHN0cnVjdCBpb21tdV9kb21haW4gKmRvbWFpbiwgdW5zaWduZWQg bG9uZyBpb3ZhLA0KIAkgICAgICBwaHlzX2FkZHJfdCBwYWRkciwgc2l6ZV90IHNpemUsIGludCBw cm90KQ0KIHsNCiAJbWlnaHRfc2xlZXAoKTsNCi0JcmV0dXJuIF9faW9tbXVfbWFwKGRvbWFpbiwg aW92YSwgcGFkZHIsIHNpemUsIHByb3QsIEdGUF9LRVJORUwpOw0KKwlyZXR1cm4gX2lvbW11X21h cChkb21haW4sIGlvdmEsIHBhZGRyLCBzaXplLCBwcm90LCBHRlBfS0VSTkVMKTsNCiB9DQogRVhQ T1JUX1NZTUJPTF9HUEwoaW9tbXVfbWFwKTsNCiANCiBpbnQgaW9tbXVfbWFwX2F0b21pYyhzdHJ1 Y3QgaW9tbXVfZG9tYWluICpkb21haW4sIHVuc2lnbmVkIGxvbmcgaW92YSwNCiAJICAgICAgcGh5 c19hZGRyX3QgcGFkZHIsIHNpemVfdCBzaXplLCBpbnQgcHJvdCkNCiB7DQotCXJldHVybiBfX2lv bW11X21hcChkb21haW4sIGlvdmEsIHBhZGRyLCBzaXplLCBwcm90LCBHRlBfQVRPTUlDKTsNCisJ cmV0dXJuIF9pb21tdV9tYXAoZG9tYWluLCBpb3ZhLCBwYWRkciwgc2l6ZSwgcHJvdCwgR0ZQX0FU T01JQyk7DQogfQ0KIEVYUE9SVF9TWU1CT0xfR1BMKGlvbW11X21hcF9hdG9taWMpOw0KDQo=