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17 Jun 2020 17:00:14 -0700 From: Manasi Navare To: intel-gfx@lists.freedesktop.org Date: Wed, 17 Jun 2020 17:01:23 -0700 Message-Id: <20200618000124.29036-1-manasi.d.navare@intel.com> X-Mailer: git-send-email 2.19.1 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 1/2] drm/i915/dp: Helper for checking DDI_BUF_CTL Idle status X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" TW9kaWZ5IHRoZSBoZWxwZXIgdG8gYWRkIGEgZml4ZWQgZGVsYXkgb3IgcG9sbCB3aXRoIHRpbWVv dXQKYmFzZWQgb24gcGxhdGZvcm0gc3BlY2lmaWNhdGlvbiBpbiBib3RoZSBlbmFibGUgYW5kIGRp c2FibGUKY2FzZXMgc28gY2hlY2sgZm9yIGVpdGhlciBJZGxlIGJpdCBzZXQgKERESV9CVUZfQ1RM IGlzIGlkbGUKZm9yIGRpc2FibGUgY2FzZSkgb3IgY2hlY2sgZm9yIElkbGUgYml0ID0gMCAobm9u IGlkbGUgZm9yCkRESSBCVUYgZW5hYmxlIGNhc2UpCgpDYzogVmlsbGUgU3lyasOkbMOkIDx2aWxs ZS5zeXJqYWxhQGxpbnV4LmludGVsLmNvbT4KQ2M6IEltcmUgRGVhayA8aW1yZS5kZWFrQGludGVs LmNvbT4KU2lnbmVkLW9mZi1ieTogTWFuYXNpIE5hdmFyZSA8bWFuYXNpLmQubmF2YXJlQGludGVs LmNvbT4KLS0tCiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ludGVsX2RkaS5jIHwgMzQg KysrKysrKysrKysrKysrLS0tLS0tLS0tCiAxIGZpbGUgY2hhbmdlZCwgMjEgaW5zZXJ0aW9ucygr KSwgMTMgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlz cGxheS9pbnRlbF9kZGkuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2Rpc3BsYXkvaW50ZWxfZGRp LmMKaW5kZXggY2E3YmIyMjk0ZDJiLi5lNDczOGMzYjZkNDQgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMv Z3B1L2RybS9pOTE1L2Rpc3BsYXkvaW50ZWxfZGRpLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5 MTUvZGlzcGxheS9pbnRlbF9kZGkuYwpAQCAtMTE4MiwxOCArMTE4MiwyNiBAQCBzdGF0aWMgdm9p ZCBpbnRlbF9wcmVwYXJlX2hkbWlfZGRpX2J1ZmZlcnMoc3RydWN0IGludGVsX2VuY29kZXIgKmVu Y29kZXIsCiB9CiAKIHN0YXRpYyB2b2lkIGludGVsX3dhaXRfZGRpX2J1Zl9pZGxlKHN0cnVjdCBk cm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwKLQkJCQkgICAgZW51bSBwb3J0IHBvcnQpCisJCQkJ ICAgIGVudW0gcG9ydCBwb3J0LCBib29sIGlkbGUpCiB7Ci0JaTkxNV9yZWdfdCByZWcgPSBERElf QlVGX0NUTChwb3J0KTsKLQlpbnQgaTsKLQotCWZvciAoaSA9IDA7IGkgPCAxNjsgaSsrKSB7Ci0J CXVkZWxheSgxKTsKLQkJaWYgKGludGVsX2RlX3JlYWQoZGV2X3ByaXYsIHJlZykgJiBERElfQlVG X0lTX0lETEUpCi0JCQlyZXR1cm47CisJaWYgKGlkbGUpIHsKKwkJaWYgKElTX0JST1hUT04oZGV2 X3ByaXYpKQorCQkJdWRlbGF5KDE2KTsKKwkJZWxzZQorCQkJaWYgKHdhaXRfZm9yX3VzKChpbnRl bF9kZV9yZWFkKGRldl9wcml2LCBERElfQlVGX0NUTChwb3J0KSkgJgorCQkJCQkgRERJX0JVRl9J U19JRExFKSwgMTYpKQorCQkJCWRybV9lcnIoJmRldl9wcml2LT5kcm0sICJUaW1lb3V0IHdhaXRp bmcgZm9yIERESSBCVUYgJWMgaWRsZSBiaXRcbiIsCisJCQkJCXBvcnRfbmFtZShwb3J0KSk7CisJ fSBlbHNlIHsKKwkJaWYgKElOVEVMX0dFTihkZXZfcHJpdikgPCAxMCkKKwkJCXVkZWxheSg2MDAp OworCQllbHNlCisJCQlpZiAod2FpdF9mb3JfdXMoIShpbnRlbF9kZV9yZWFkKGRldl9wcml2LCBE RElfQlVGX0NUTChwb3J0KSkgJgorCQkJCQkgIERESV9CVUZfSVNfSURMRSksIDYwMCkpCisJCQkJ ZHJtX2VycigmZGV2X3ByaXYtPmRybSwgIkRESSBwb3J0OiVjIGJ1ZmZlciBpZGxlXG4iLAorCQkJ CQlwb3J0X25hbWUocG9ydCkpOwogCX0KLQlkcm1fZXJyKCZkZXZfcHJpdi0+ZHJtLCAiVGltZW91 dCB3YWl0aW5nIGZvciBEREkgQlVGICVjIGlkbGUgYml0XG4iLAotCQlwb3J0X25hbWUocG9ydCkp OworCiB9CiAKIHN0YXRpYyB1MzIgaHN3X3BsbF90b19kZGlfcGxsX3NlbChjb25zdCBzdHJ1Y3Qg aW50ZWxfc2hhcmVkX2RwbGwgKnBsbCkKQEAgLTEzNzMsNyArMTM4MSw3IEBAIHZvaWQgaHN3X2Zk aV9saW5rX3RyYWluKHN0cnVjdCBpbnRlbF9lbmNvZGVyICplbmNvZGVyLAogCQlpbnRlbF9kZV93 cml0ZShkZXZfcHJpdiwgRFBfVFBfQ1RMKFBPUlRfRSksIHRlbXApOwogCQlpbnRlbF9kZV9wb3N0 aW5nX3JlYWQoZGV2X3ByaXYsIERQX1RQX0NUTChQT1JUX0UpKTsKIAotCQlpbnRlbF93YWl0X2Rk aV9idWZfaWRsZShkZXZfcHJpdiwgUE9SVF9FKTsKKwkJaW50ZWxfd2FpdF9kZGlfYnVmX2lkbGUo ZGV2X3ByaXYsIFBPUlRfRSwgdHJ1ZSk7CiAKIAkJLyogUmVzZXQgRkRJX1JYX01JU0MgcHdyZG4g bGFuZXMgKi8KIAkJdGVtcCA9IGludGVsX2RlX3JlYWQoZGV2X3ByaXYsIEZESV9SWF9NSVNDKFBJ UEVfQSkpOwpAQCAtMzQ5NSw3ICszNTAzLDcgQEAgc3RhdGljIHZvaWQgaW50ZWxfZGlzYWJsZV9k ZGlfYnVmKHN0cnVjdCBpbnRlbF9lbmNvZGVyICplbmNvZGVyLAogCWludGVsX2RkaV9kaXNhYmxl X2ZlY19zdGF0ZShlbmNvZGVyLCBjcnRjX3N0YXRlKTsKIAogCWlmICh3YWl0KQotCQlpbnRlbF93 YWl0X2RkaV9idWZfaWRsZShkZXZfcHJpdiwgcG9ydCk7CisJCWludGVsX3dhaXRfZGRpX2J1Zl9p ZGxlKGRldl9wcml2LCBwb3J0LCB0cnVlKTsKIH0KIAogc3RhdGljIHZvaWQgaW50ZWxfZGRpX3Bv c3RfZGlzYWJsZV9kcChzdHJ1Y3QgaW50ZWxfYXRvbWljX3N0YXRlICpzdGF0ZSwKQEAgLTQwMDQs NyArNDAxMiw3IEBAIHN0YXRpYyB2b2lkIGludGVsX2RkaV9wcmVwYXJlX2xpbmtfcmV0cmFpbihz dHJ1Y3QgaW50ZWxfZHAgKmludGVsX2RwKQogCQlpbnRlbF9kZV9wb3N0aW5nX3JlYWQoZGV2X3By aXYsIGludGVsX2RwLT5yZWdzLmRwX3RwX2N0bCk7CiAKIAkJaWYgKHdhaXQpCi0JCQlpbnRlbF93 YWl0X2RkaV9idWZfaWRsZShkZXZfcHJpdiwgcG9ydCk7CisJCQlpbnRlbF93YWl0X2RkaV9idWZf aWRsZShkZXZfcHJpdiwgcG9ydCwgdHJ1ZSk7CiAJfQogCiAJZHBfdHBfY3RsID0gRFBfVFBfQ1RM X0VOQUJMRSB8Ci0tIAoyLjE5LjEKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVk ZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZv L2ludGVsLWdmeAo=