From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Francis Subject: [PATCH v4 3/5] drm/dp-mst: Add MST support to DP DPCD R/W functions Date: Thu, 22 Aug 2019 09:57:39 -0400 Message-ID: <20190822135741.12923-4-David.Francis@amd.com> References: <20190822135741.12923-1-David.Francis@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from NAM02-SN1-obe.outbound.protection.outlook.com (mail-eopbgr770053.outbound.protection.outlook.com [40.107.77.53]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8EEE06EB3F for ; Thu, 22 Aug 2019 13:57:51 +0000 (UTC) In-Reply-To: <20190822135741.12923-1-David.Francis@amd.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org Cc: Leo Li , David Francis List-Id: dri-devel@lists.freedesktop.org SW5zdGVhZCBvZiBoYXZpbmcgZHJtX2RwX2RwY2RfcmVhZC93cml0ZSBhbmQKZHJtX2RwX21zdF9k cGNkX3JlYWQvd3JpdGUgYXMgZW50cnkgcG9pbnRzIGludG8gdGhlCmF1eCBjb2RlLCBoYXZlIGRy bV9kcF9kcGNkX3JlYWQvd3JpdGUgaGFuZGxlIGJvdGguCgpUaGlzIG1lYW5zIHRoYXQgRFJNIGRy aXZlcnMgY2FuIG1ha2UgTVNUIERQQ0QgcmVhZC93cml0ZXMuCgp2MjogRml4IHNwYWNpbmcKCkNj OiBMZW8gTGkgPHN1bnBlbmcubGlAYW1kLmNvbT4KQ2M6IEx5dWRlIFBhdWwgPGx5dWRlQHJlZGhh dC5jb20+ClNpZ25lZC1vZmYtYnk6IERhdmlkIEZyYW5jaXMgPERhdmlkLkZyYW5jaXNAYW1kLmNv bT4KLS0tCiBkcml2ZXJzL2dwdS9kcm0vZHJtX2RwX2F1eF9kZXYuYyB8IDEyICsrLS0tLS0tLS0t LQogZHJpdmVycy9ncHUvZHJtL2RybV9kcF9oZWxwZXIuYyAgfCAxMCArKysrKysrKy0tCiAyIGZp bGVzIGNoYW5nZWQsIDEwIGluc2VydGlvbnMoKyksIDEyIGRlbGV0aW9ucygtKQoKZGlmZiAtLWdp dCBhL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfYXV4X2Rldi5jIGIvZHJpdmVycy9ncHUvZHJtL2Ry bV9kcF9hdXhfZGV2LmMKaW5kZXggMGNmYjM4Njc1NGMzLi40MThjYWQ0ZjY0OWEgMTAwNjQ0Ci0t LSBhL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfYXV4X2Rldi5jCisrKyBiL2RyaXZlcnMvZ3B1L2Ry bS9kcm1fZHBfYXV4X2Rldi5jCkBAIC0xNjMsMTEgKzE2Myw3IEBAIHN0YXRpYyBzc2l6ZV90IGF1 eGRldl9yZWFkX2l0ZXIoc3RydWN0IGtpb2NiICppb2NiLCBzdHJ1Y3QgaW92X2l0ZXIgKnRvKQog CQkJYnJlYWs7CiAJCX0KIAotCQlpZiAoYXV4X2Rldi0+YXV4LT5pc19yZW1vdGUpCi0JCQlyZXMg PSBkcm1fZHBfbXN0X2RwY2RfcmVhZChhdXhfZGV2LT5hdXgsIHBvcywgYnVmLAotCQkJCQkJICAg dG9kbyk7Ci0JCWVsc2UKLQkJCXJlcyA9IGRybV9kcF9kcGNkX3JlYWQoYXV4X2Rldi0+YXV4LCBw b3MsIGJ1ZiwgdG9kbyk7CisJCXJlcyA9IGRybV9kcF9kcGNkX3JlYWQoYXV4X2Rldi0+YXV4LCBw b3MsIGJ1ZiwgdG9kbyk7CiAKIAkJaWYgKHJlcyA8PSAwKQogCQkJYnJlYWs7CkBAIC0yMTUsMTEg KzIxMSw3IEBAIHN0YXRpYyBzc2l6ZV90IGF1eGRldl93cml0ZV9pdGVyKHN0cnVjdCBraW9jYiAq aW9jYiwgc3RydWN0IGlvdl9pdGVyICpmcm9tKQogCQkJYnJlYWs7CiAJCX0KIAotCQlpZiAoYXV4 X2Rldi0+YXV4LT5pc19yZW1vdGUpCi0JCQlyZXMgPSBkcm1fZHBfbXN0X2RwY2Rfd3JpdGUoYXV4 X2Rldi0+YXV4LCBwb3MsIGJ1ZiwKLQkJCQkJCSAgICB0b2RvKTsKLQkJZWxzZQotCQkJcmVzID0g ZHJtX2RwX2RwY2Rfd3JpdGUoYXV4X2Rldi0+YXV4LCBwb3MsIGJ1ZiwgdG9kbyk7CisJCXJlcyA9 IGRybV9kcF9tc3RfZHBjZF93cml0ZShhdXhfZGV2LT5hdXgsIHBvcywgYnVmLCB0b2RvKTsKIAog CQlpZiAocmVzIDw9IDApCiAJCQlicmVhazsKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9k cm1fZHBfaGVscGVyLmMgYi9kcml2ZXJzL2dwdS9kcm0vZHJtX2RwX2hlbHBlci5jCmluZGV4IGZm YzY4ZDMwNWFmZS4uYjE1OTk3NjBiNmEzIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vZHJt X2RwX2hlbHBlci5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfaGVscGVyLmMKQEAgLTMw LDYgKzMwLDcgQEAKICNpbmNsdWRlIDxsaW51eC9zZXFfZmlsZS5oPgogCiAjaW5jbHVkZSA8ZHJt L2RybV9kcF9oZWxwZXIuaD4KKyNpbmNsdWRlIDxkcm0vZHJtX2RwX21zdF9oZWxwZXIuaD4KICNp bmNsdWRlIDxkcm0vZHJtX3ByaW50Lmg+CiAjaW5jbHVkZSA8ZHJtL2RybV92YmxhbmsuaD4KIApA QCAtMjUxLDcgKzI1Miw3IEBAIHN0YXRpYyBpbnQgZHJtX2RwX2RwY2RfYWNjZXNzKHN0cnVjdCBk cm1fZHBfYXV4ICphdXgsIHU4IHJlcXVlc3QsCiAKIC8qKgogICogZHJtX2RwX2RwY2RfcmVhZCgp IC0gcmVhZCBhIHNlcmllcyBvZiBieXRlcyBmcm9tIHRoZSBEUENECi0gKiBAYXV4OiBEaXNwbGF5 UG9ydCBBVVggY2hhbm5lbAorICogQGF1eDogRGlzcGxheVBvcnQgQVVYIGNoYW5uZWwgKFNTVCBv ciBNU1QpCiAgKiBAb2Zmc2V0OiBhZGRyZXNzIG9mIHRoZSAoZmlyc3QpIHJlZ2lzdGVyIHRvIHJl YWQKICAqIEBidWZmZXI6IGJ1ZmZlciB0byBzdG9yZSB0aGUgcmVnaXN0ZXIgdmFsdWVzCiAgKiBA c2l6ZTogbnVtYmVyIG9mIGJ5dGVzIGluIEBidWZmZXIKQEAgLTI2OCw2ICsyNjksOCBAQCBzc2l6 ZV90IGRybV9kcF9kcGNkX3JlYWQoc3RydWN0IGRybV9kcF9hdXggKmF1eCwgdW5zaWduZWQgaW50 IG9mZnNldCwKIHsKIAlpbnQgcmV0OwogCisJaWYgKGF1eC0+aXNfcmVtb3RlKQorCQlyZXR1cm4g ZHJtX2RwX21zdF9kcGNkX3JlYWQoYXV4LCBvZmZzZXQsIGJ1ZmZlciwgc2l6ZSk7CiAJLyoKIAkg KiBIUCBaUjI0dyBjb3JydXB0cyB0aGUgZmlyc3QgRFBDRCBhY2Nlc3MgYWZ0ZXIgZW50ZXJpbmcg cG93ZXIgc2F2ZQogCSAqIG1vZGUuIEVnLiBvbiBhIHJlYWQsIHRoZSBlbnRpcmUgYnVmZmVyIHdp bGwgYmUgZmlsbGVkIHdpdGggdGhlIHNhbWUKQEAgLTI5Niw3ICsyOTksNyBAQCBFWFBPUlRfU1lN Qk9MKGRybV9kcF9kcGNkX3JlYWQpOwogCiAvKioKICAqIGRybV9kcF9kcGNkX3dyaXRlKCkgLSB3 cml0ZSBhIHNlcmllcyBvZiBieXRlcyB0byB0aGUgRFBDRAotICogQGF1eDogRGlzcGxheVBvcnQg QVVYIGNoYW5uZWwKKyAqIEBhdXg6IERpc3BsYXlQb3J0IEFVWCBjaGFubmVsIChTU1Qgb3IgTVNU KQogICogQG9mZnNldDogYWRkcmVzcyBvZiB0aGUgKGZpcnN0KSByZWdpc3RlciB0byB3cml0ZQog ICogQGJ1ZmZlcjogYnVmZmVyIGNvbnRhaW5pbmcgdGhlIHZhbHVlcyB0byB3cml0ZQogICogQHNp emU6IG51bWJlciBvZiBieXRlcyBpbiBAYnVmZmVyCkBAIC0zMTMsNiArMzE2LDkgQEAgc3NpemVf dCBkcm1fZHBfZHBjZF93cml0ZShzdHJ1Y3QgZHJtX2RwX2F1eCAqYXV4LCB1bnNpZ25lZCBpbnQg b2Zmc2V0LAogewogCWludCByZXQ7CiAKKwlpZiAoYXV4LT5pc19yZW1vdGUpCisJCXJldHVybiBk cm1fZHBfbXN0X2RwY2Rfd3JpdGUoYXV4LCBvZmZzZXQsIGJ1ZmZlciwgc2l6ZSk7CisKIAlyZXQg PSBkcm1fZHBfZHBjZF9hY2Nlc3MoYXV4LCBEUF9BVVhfTkFUSVZFX1dSSVRFLCBvZmZzZXQsIGJ1 ZmZlciwKIAkJCQkgc2l6ZSk7CiAJZHJtX2RwX2R1bXBfYWNjZXNzKGF1eCwgRFBfQVVYX05BVElW RV9XUklURSwgb2Zmc2V0LCBidWZmZXIsIHJldCk7Ci0tIAoyLjE3LjEKCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QK ZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9w Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbA==