From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Francis Subject: [PATCH v3 10/16] drm/dp-mst: Add MST support to DP DPCD R/W functions Date: Wed, 21 Aug 2019 16:01:23 -0400 Message-ID: <20190821200129.11575-11-David.Francis@amd.com> References: <20190821200129.11575-1-David.Francis@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20190821200129.11575-1-David.Francis-5C7GfCeVMHo@public.gmane.org> List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org, amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Cc: Leo Li , David Francis SW5zdGVhZCBvZiBoYXZpbmcgZHJtX2RwX2RwY2RfcmVhZC93cml0ZSBhbmQKZHJtX2RwX21zdF9k cGNkX3JlYWQvd3JpdGUgYXMgZW50cnkgcG9pbnRzIGludG8gdGhlCmF1eCBjb2RlLCBoYXZlIGRy bV9kcF9kcGNkX3JlYWQvd3JpdGUgaGFuZGxlIGJvdGguCgpUaGlzIG1lYW5zIHRoYXQgRFJNIGRy aXZlcnMgY2FuIG1ha2UgTVNUIERQQ0QgcmVhZC93cml0ZXMuCgpDYzogTGVvIExpIDxzdW5wZW5n LmxpQGFtZC5jb20+CkNjOiBMeXVkZSBQYXVsIDxseXVkZUByZWRoYXQuY29tPgpTaWduZWQtb2Zm LWJ5OiBEYXZpZCBGcmFuY2lzIDxEYXZpZC5GcmFuY2lzQGFtZC5jb20+Ci0tLQogZHJpdmVycy9n cHUvZHJtL2RybV9kcF9hdXhfZGV2LmMgfCAxMiArKy0tLS0tLS0tLS0KIGRyaXZlcnMvZ3B1L2Ry bS9kcm1fZHBfaGVscGVyLmMgIHwgMTAgKysrKysrKystLQogMiBmaWxlcyBjaGFuZ2VkLCAxMCBp bnNlcnRpb25zKCspLCAxMiBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9k cm0vZHJtX2RwX2F1eF9kZXYuYyBiL2RyaXZlcnMvZ3B1L2RybS9kcm1fZHBfYXV4X2Rldi5jCmlu ZGV4IDAwNjEwYmQ4ZDZjMS4uMDc4MGZjMzU4Mzg5IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9k cm0vZHJtX2RwX2F1eF9kZXYuYworKysgYi9kcml2ZXJzL2dwdS9kcm0vZHJtX2RwX2F1eF9kZXYu YwpAQCAtMTYyLDExICsxNjIsNyBAQCBzdGF0aWMgc3NpemVfdCBhdXhkZXZfcmVhZF9pdGVyKHN0 cnVjdCBraW9jYiAqaW9jYiwgc3RydWN0IGlvdl9pdGVyICp0bykKIAkJCWJyZWFrOwogCQl9CiAK LQkJaWYgKGF1eF9kZXYtPmF1eC0+aXNfcmVtb3RlKQotCQkJcmVzID0gZHJtX2RwX21zdF9kcGNk X3JlYWQoYXV4X2Rldi0+YXV4LCBwb3MsIGJ1ZiwKLQkJCQkJCSAgIHRvZG8pOwotCQllbHNlCi0J CQlyZXMgPSBkcm1fZHBfZHBjZF9yZWFkKGF1eF9kZXYtPmF1eCwgcG9zLCBidWYsIHRvZG8pOwor CQlyZXMgPSBkcm1fZHBfZHBjZF9yZWFkKGF1eF9kZXYtPmF1eCwgcG9zLCBidWYsIHRvZG8pOwog CiAJCWlmIChyZXMgPD0gMCkKIAkJCWJyZWFrOwpAQCAtMjE0LDExICsyMTAsNyBAQCBzdGF0aWMg c3NpemVfdCBhdXhkZXZfd3JpdGVfaXRlcihzdHJ1Y3Qga2lvY2IgKmlvY2IsIHN0cnVjdCBpb3Zf aXRlciAqZnJvbSkKIAkJCWJyZWFrOwogCQl9CiAKLQkJaWYgKGF1eF9kZXYtPmF1eC0+aXNfcmVt b3RlKQotCQkJcmVzID0gZHJtX2RwX21zdF9kcGNkX3dyaXRlKGF1eF9kZXYtPmF1eCwgcG9zLCBi dWYsCi0JCQkJCQkgICAgdG9kbyk7Ci0JCWVsc2UKLQkJCXJlcyA9IGRybV9kcF9kcGNkX3dyaXRl KGF1eF9kZXYtPmF1eCwgcG9zLCBidWYsIHRvZG8pOworCQlyZXMgPSBkcm1fZHBfbXN0X2RwY2Rf d3JpdGUoYXV4X2Rldi0+YXV4LCBwb3MsIGJ1ZiwgdG9kbyk7CiAKIAkJaWYgKHJlcyA8PSAwKQog CQkJYnJlYWs7CmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vZHJtX2RwX2hlbHBlci5jIGIv ZHJpdmVycy9ncHUvZHJtL2RybV9kcF9oZWxwZXIuYwppbmRleCA1NGE2NDE0YzVkOTYuLjlmOTc2 YjkwYzUzYSAxMDA2NDQKLS0tIGEvZHJpdmVycy9ncHUvZHJtL2RybV9kcF9oZWxwZXIuYworKysg Yi9kcml2ZXJzL2dwdS9kcm0vZHJtX2RwX2hlbHBlci5jCkBAIC0yOSw2ICsyOSw3IEBACiAjaW5j bHVkZSA8bGludXgvaTJjLmg+CiAjaW5jbHVkZSA8bGludXgvc2VxX2ZpbGUuaD4KICNpbmNsdWRl IDxkcm0vZHJtX2RwX2hlbHBlci5oPgorI2luY2x1ZGUgPGRybS9kcm1fZHBfbXN0X2hlbHBlci5o PgogI2luY2x1ZGUgPGRybS9kcm1QLmg+CiAKICNpbmNsdWRlICJkcm1fY3J0Y19oZWxwZXJfaW50 ZXJuYWwuaCIKQEAgLTI3Miw3ICsyNzMsNyBAQCBzdGF0aWMgaW50IGRybV9kcF9kcGNkX2FjY2Vz cyhzdHJ1Y3QgZHJtX2RwX2F1eCAqYXV4LCB1OCByZXF1ZXN0LAogCiAvKioKICAqIGRybV9kcF9k cGNkX3JlYWQoKSAtIHJlYWQgYSBzZXJpZXMgb2YgYnl0ZXMgZnJvbSB0aGUgRFBDRAotICogQGF1 eDogRGlzcGxheVBvcnQgQVVYIGNoYW5uZWwKKyAqIEBhdXg6IERpc3BsYXlQb3J0IEFVWCBjaGFu bmVsIChTU1Qgb3IgTVNUKQogICogQG9mZnNldDogYWRkcmVzcyBvZiB0aGUgKGZpcnN0KSByZWdp c3RlciB0byByZWFkCiAgKiBAYnVmZmVyOiBidWZmZXIgdG8gc3RvcmUgdGhlIHJlZ2lzdGVyIHZh bHVlcwogICogQHNpemU6IG51bWJlciBvZiBieXRlcyBpbiBAYnVmZmVyCkBAIC0yODksNiArMjkw LDggQEAgc3NpemVfdCBkcm1fZHBfZHBjZF9yZWFkKHN0cnVjdCBkcm1fZHBfYXV4ICphdXgsIHVu c2lnbmVkIGludCBvZmZzZXQsCiB7CiAJaW50IHJldDsKIAorICAgICAgICBpZiAoYXV4LT5pc19y ZW1vdGUpCisgICAgICAgICAgICAgICAgcmV0dXJuIGRybV9kcF9tc3RfZHBjZF9yZWFkKGF1eCwg b2Zmc2V0LCBidWZmZXIsIHNpemUpOwogCS8qCiAJICogSFAgWlIyNHcgY29ycnVwdHMgdGhlIGZp cnN0IERQQ0QgYWNjZXNzIGFmdGVyIGVudGVyaW5nIHBvd2VyIHNhdmUKIAkgKiBtb2RlLiBFZy4g b24gYSByZWFkLCB0aGUgZW50aXJlIGJ1ZmZlciB3aWxsIGJlIGZpbGxlZCB3aXRoIHRoZSBzYW1l CkBAIC0zMTcsNyArMzIwLDcgQEAgRVhQT1JUX1NZTUJPTChkcm1fZHBfZHBjZF9yZWFkKTsKIAog LyoqCiAgKiBkcm1fZHBfZHBjZF93cml0ZSgpIC0gd3JpdGUgYSBzZXJpZXMgb2YgYnl0ZXMgdG8g dGhlIERQQ0QKLSAqIEBhdXg6IERpc3BsYXlQb3J0IEFVWCBjaGFubmVsCisgKiBAYXV4OiBEaXNw bGF5UG9ydCBBVVggY2hhbm5lbCAoU1NUIG9yIE1TVCkKICAqIEBvZmZzZXQ6IGFkZHJlc3Mgb2Yg dGhlIChmaXJzdCkgcmVnaXN0ZXIgdG8gd3JpdGUKICAqIEBidWZmZXI6IGJ1ZmZlciBjb250YWlu aW5nIHRoZSB2YWx1ZXMgdG8gd3JpdGUKICAqIEBzaXplOiBudW1iZXIgb2YgYnl0ZXMgaW4gQGJ1 ZmZlcgpAQCAtMzM0LDYgKzMzNyw5IEBAIHNzaXplX3QgZHJtX2RwX2RwY2Rfd3JpdGUoc3RydWN0 IGRybV9kcF9hdXggKmF1eCwgdW5zaWduZWQgaW50IG9mZnNldCwKIHsKIAlpbnQgcmV0OwogCisg ICAgICAgIGlmIChhdXgtPmlzX3JlbW90ZSkKKyAgICAgICAgICAgICAgICByZXR1cm4gZHJtX2Rw X21zdF9kcGNkX3dyaXRlKGF1eCwgb2Zmc2V0LCBidWZmZXIsIHNpemUpOworCiAJcmV0ID0gZHJt X2RwX2RwY2RfYWNjZXNzKGF1eCwgRFBfQVVYX05BVElWRV9XUklURSwgb2Zmc2V0LCBidWZmZXIs CiAJCQkJIHNpemUpOwogCWRybV9kcF9kdW1wX2FjY2VzcyhhdXgsIERQX0FVWF9OQVRJVkVfV1JJ VEUsIG9mZnNldCwgYnVmZmVyLCByZXQpOwotLSAKMi4xNy4xCgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwphbWQtZ2Z4IG1haWxpbmcgbGlzdAphbWQtZ2Z4 QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWls bWFuL2xpc3RpbmZvL2FtZC1nZng=