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Tue, 28 Apr 2020 19:13:53 +0800 From: Stanley Chu To: , , , , , CC: , , , , , , , , , , , Stanley Chu Subject: [PATCH v1 1/4] scsi: ufs: allow legacy UFS devices to enable WriteBooster Date: Tue, 28 Apr 2020 19:13:52 +0800 Message-ID: <20200428111355.1776-2-stanley.chu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20200428111355.1776-1-stanley.chu@mediatek.com> References: <20200428111355.1776-1-stanley.chu@mediatek.com> MIME-Version: 1.0 Content-Type: text/plain X-TM-SNTS-SMTP: AC2CEAEB40CCCB9E644C7A17A45E30E1A5213F587BCD3BC5704A675A73F2016B2000:8 X-MTK: N Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org V3JpdGVCb29zdGVyIGZlYXR1cmUgbWF5IGJlIHN1cHBvcnRlZCBieSBzb21lIGxlZ2FjeSBVRlMg ZGV2aWNlcw0KKGkuZS4sIDwgMy4xKSBieSB1cGdyYWRpbmcgZmlybXdhcmUuDQoNClRvIGVuYWJs ZSBXcml0ZUJvb3N0ZXIgZmVhdHVyZSBpbiBzdWNoIGRldmljZXMsIHJlbGF4IHRoZSBlbnRyYW5j ZQ0KY29uZGl0aW9uIG9mIHVmc2hjZF93Yl9wcm9iZSgpIHRvIGFsbG93IGhvc3QgZHJpdmVyIHRv IGNoZWNrIHRob3NlDQpkZXZpY2VzJyBXcml0ZUJvb3N0ZXIgY2FwYWJpbGl0eS4NCg0KV3JpdGVC b29zdGVyIGZlYXR1cmUgY2FuIGJlIGF2YWlsYWJsZSBpZiBiZWxvdyBib3RoIGNvbmRpdGlvbnMg YXJlDQpzYXRpc2ZpZWQsDQoNCjEuIERldmljZSBkZXNjcmlwdG9yIGhhcyBkRXh0ZW5kZWRVRlNG ZWF0dXJlc1N1cHBvcnQgZmllbGQuDQoyLiBXcml0ZUJvb3N0ZXIgc3VwcG9ydCBpcyBzcGVjaWZp ZWQgaW4gYWJvdmUgZmllbGQuDQoNClNpZ25lZC1vZmYtYnk6IFN0YW5sZXkgQ2h1IDxzdGFubGV5 LmNodUBtZWRpYXRlay5jb20+DQotLS0NCiBkcml2ZXJzL3Njc2kvdWZzL3Vmc2hjZC5jIHwgMTkg KysrKysrKysrKysrKy0tLS0tLQ0KIDEgZmlsZSBjaGFuZ2VkLCAxMyBpbnNlcnRpb25zKCspLCA2 IGRlbGV0aW9ucygtKQ0KDQpkaWZmIC0tZ2l0IGEvZHJpdmVycy9zY3NpL3Vmcy91ZnNoY2QuYyBi L2RyaXZlcnMvc2NzaS91ZnMvdWZzaGNkLmMNCmluZGV4IDkxNWU5NjMzOThjNC4uMTExODEyYzUz MDRhIDEwMDY0NA0KLS0tIGEvZHJpdmVycy9zY3NpL3Vmcy91ZnNoY2QuYw0KKysrIGIvZHJpdmVy cy9zY3NpL3Vmcy91ZnNoY2QuYw0KQEAgLTY4MDAsOSArNjgwMCwxNiBAQCBzdGF0aWMgaW50IHVm c2hjZF9zY3NpX2FkZF93bHVzKHN0cnVjdCB1ZnNfaGJhICpoYmEpDQogDQogc3RhdGljIHZvaWQg dWZzaGNkX3diX3Byb2JlKHN0cnVjdCB1ZnNfaGJhICpoYmEsIHU4ICpkZXNjX2J1ZikNCiB7DQor CWlmIChoYmEtPmRlc2Nfc2l6ZS5kZXZfZGVzYyA8PSBERVZJQ0VfREVTQ19QQVJBTV9FWFRfVUZT X0ZFQVRVUkVfU1VQKQ0KKwkJZ290byB3Yl9kaXNhYmxlZDsNCisNCiAJaGJhLT5kZXZfaW5mby5k X2V4dF91ZnNfZmVhdHVyZV9zdXAgPQ0KIAkJZ2V0X3VuYWxpZ25lZF9iZTMyKGRlc2NfYnVmICsN CiAJCQkJICAgREVWSUNFX0RFU0NfUEFSQU1fRVhUX1VGU19GRUFUVVJFX1NVUCk7DQorDQorCWlm ICghKGhiYS0+ZGV2X2luZm8uZF9leHRfdWZzX2ZlYXR1cmVfc3VwICYgVUZTX0RFVl9XUklURV9C T09TVEVSX1NVUCkpDQorCQlnb3RvIHdiX2Rpc2FibGVkOw0KKw0KIAkvKg0KIAkgKiBXQiBtYXkg YmUgc3VwcG9ydGVkIGJ1dCBub3QgY29uZmlndXJlZCB3aGlsZSBwcm92aXNpb25pbmcuDQogCSAq IFRoZSBzcGVjIHNheXMsIGluIGRlZGljYXRlZCB3YiBidWZmZXIgbW9kZSwNCkBAIC02ODE4LDEx ICs2ODI1LDEyIEBAIHN0YXRpYyB2b2lkIHVmc2hjZF93Yl9wcm9iZShzdHJ1Y3QgdWZzX2hiYSAq aGJhLCB1OCAqZGVzY19idWYpDQogCWhiYS0+ZGV2X2luZm8uYl9wcmVzcnZfdXNwY19lbiA9DQog CQlkZXNjX2J1ZltERVZJQ0VfREVTQ19QQVJBTV9XQl9QUkVTUlZfVVNSU1BDX0VOXTsNCiANCi0J aWYgKCEoKGhiYS0+ZGV2X2luZm8uZF9leHRfdWZzX2ZlYXR1cmVfc3VwICYNCi0JCSBVRlNfREVW X1dSSVRFX0JPT1NURVJfU1VQKSAmJg0KLQkJaGJhLT5kZXZfaW5mby5iX3diX2J1ZmZlcl90eXBl ICYmDQorCWlmICghKGhiYS0+ZGV2X2luZm8uYl93Yl9idWZmZXJfdHlwZSAmJg0KIAkgICAgICBo YmEtPmRldl9pbmZvLmRfd2JfYWxsb2NfdW5pdHMpKQ0KLQkJaGJhLT5jYXBzICY9IH5VRlNIQ0Rf Q0FQX1dCX0VOOw0KKwkJZ290byB3Yl9kaXNhYmxlZDsNCisNCit3Yl9kaXNhYmxlZDoNCisJaGJh LT5jYXBzICY9IH5VRlNIQ0RfQ0FQX1dCX0VOOw0KIH0NCiANCiBzdGF0aWMgaW50IHVmc19nZXRf ZGV2aWNlX2Rlc2Moc3RydWN0IHVmc19oYmEgKmhiYSkNCkBAIC02ODYyLDggKzY4NzAsNyBAQCBz dGF0aWMgaW50IHVmc19nZXRfZGV2aWNlX2Rlc2Moc3RydWN0IHVmc19oYmEgKmhiYSkNCiANCiAJ bW9kZWxfaW5kZXggPSBkZXNjX2J1ZltERVZJQ0VfREVTQ19QQVJBTV9QUkRDVF9OQU1FXTsNCiAN Ci0JLyogRW5hYmxlIFdCIG9ubHkgZm9yIFVGUy0zLjEgKi8NCi0JaWYgKGRldl9pbmZvLT53c3Bl Y3ZlcnNpb24gPj0gMHgzMTApDQorCWlmICh1ZnNoY2RfaXNfd2JfYWxsb3dlZChoYmEpKQ0KIAkJ dWZzaGNkX3diX3Byb2JlKGhiYSwgZGVzY19idWYpOw0KIA0KIAllcnIgPSB1ZnNoY2RfcmVhZF9z dHJpbmdfZGVzYyhoYmEsIG1vZGVsX2luZGV4LA0KLS0gDQoyLjE4LjANCg==