From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH] drm/i915: Use dpcd read wake for sink crc calls. Date: Wed, 26 Aug 2015 11:06:08 +0200 Message-ID: <20150826090608.GN20434@phenom.ffwll.local> References: <1440112320-21884-1-git-send-email-rodrigo.vivi@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wi0-f169.google.com (mail-wi0-f169.google.com [209.85.212.169]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0AA306E213 for ; Wed, 26 Aug 2015 02:06:12 -0700 (PDT) Received: by wijn1 with SMTP id n1so17250860wij.0 for ; Wed, 26 Aug 2015 02:06:10 -0700 (PDT) Content-Disposition: inline In-Reply-To: <1440112320-21884-1-git-send-email-rodrigo.vivi@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Rodrigo Vivi Cc: intel-gfx@lists.freedesktop.org, Rodrigo Vivi List-Id: intel-gfx@lists.freedesktop.org T24gVGh1LCBBdWcgMjAsIDIwMTUgYXQgMDQ6MTI6MDBQTSAtMDcwMCwgUm9kcmlnbyBWaXZpIHdy b3RlOgo+IEZyb206IFJvZHJpZ28gVml2aSA8dml2aWppbUByZHZpdmktYnVkYXBlc3QuamYuaW50 ZWwuY29tPgo+IAo+IExldCdzIHVzZSBhIG5hdGl2ZSByZWFkIHdpdGggcmV0cnkgYXMgc3VnZ2Vz dGVkIHBlciBzcGVjIHRvCj4gZml4IFNpbmsgQ1JDIG9uIFNLTCB3aGVuIFBTUiBpcyBlbmFibGVk Lgo+IAo+IFdpdGggUFNSIGVuYWJsZWQgcGFuZWwgaXMgcHJvYmFibHkgdGFraW5nIG1vcmUgdGlt ZSB0byB3YWtlCj4gYW5kIGRwY2QgcmVhZCBpcyBmYWxpbmcuCj4gCj4gQ2M6IFNvbmlrYSBKaW5k YWwgPHNvbmlrYS5qaW5kYWxAaW50ZWwuY29tPgo+IFNpZ25lZC1vZmYtYnk6IFJvZHJpZ28gVml2 aSA8dml2aWppbUByZHZpdmktYnVkYXBlc3QuamYuaW50ZWwuY29tPgoKU2VlbXMgbGlrZSB3ZSBz aG91bGQganVzdCBtb3ZlIHRoZSB0cmlja2VyeSB3ZSBkbyBpbiBvdXIgb3duIHZlcnNpb24gaW50 bwp0aGUgZHAgaGVscGVycyBpbiB0aGUgY29yZSBpZiB0aGlzIGlzIG5lZWRlZCBhbGwgb3ZlciB0 aGUgcGxhY2U/CgpBdCBsZWFzdCBpbiBpOTE1IHdlIHVzZSBpdCBldmVyeXdoZXJlIGFuZCBpdCBk b2Vzbid0IHNlZW0gYWN0aXZlbHkgaGFybWZ1bApyZWFsbHkgLi4uIE1heWJlIHRoZSBvbmx5IGV4 Y2VwdGlvbiB3b3VsZCBiZSB0aGUgaTJjLW92ZXItZHBfYXV4IGNvZGUuCi1EYW5pZWwKPiAtLS0K PiAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYyB8IDE1ICsrKysrKysrKy0tLS0tLQo+ ICAxIGZpbGUgY2hhbmdlZCwgOSBpbnNlcnRpb25zKCspLCA2IGRlbGV0aW9ucygtKQo+IAo+IGRp ZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kcC5jIGIvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaW50ZWxfZHAuYwo+IGluZGV4IGQzMmNlNDguLjM0ZjVlMzMgMTAwNjQ0Cj4gLS0t IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZHAuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX2RwLmMKPiBAQCAtNDAzNyw3ICs0MDM3LDggQEAgc3RhdGljIGludCBpbnRl bF9kcF9zaW5rX2NyY19zdG9wKHN0cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHApCj4gIAl1OCBidWY7 Cj4gIAlpbnQgcmV0ID0gMDsKPiAgCj4gLQlpZiAoZHJtX2RwX2RwY2RfcmVhZGIoJmludGVsX2Rw LT5hdXgsIERQX1RFU1RfU0lOSywgJmJ1ZikgPCAwKSB7Cj4gKwlpZiAoaW50ZWxfZHBfZHBjZF9y ZWFkX3dha2UoJmludGVsX2RwLT5hdXgsIERQX1RFU1RfU0lOSywKPiArCQkJCSAgICAmYnVmLCAx KSA8IDApIHsKPiAgCQlEUk1fREVCVUdfS01TKCJTaW5rIENSQyBjb3VsZG4ndCBiZSBzdG9wcGVk IHByb3Blcmx5XG4iKTsKPiAgCQlyZXQgPSAtRUlPOwo+ICAJCWdvdG8gb3V0Owo+IEBAIC00MDY5 LDcgKzQwNzAsOCBAQCBzdGF0aWMgaW50IGludGVsX2RwX3NpbmtfY3JjX3N0YXJ0KHN0cnVjdCBp bnRlbF9kcCAqaW50ZWxfZHApCj4gIAkJCXJldHVybiByZXQ7Cj4gIAl9Cj4gIAo+IC0JaWYgKGRy bV9kcF9kcGNkX3JlYWRiKCZpbnRlbF9kcC0+YXV4LCBEUF9URVNUX1NJTktfTUlTQywgJmJ1Zikg PCAwKQo+ICsJaWYgKGludGVsX2RwX2RwY2RfcmVhZF93YWtlKCZpbnRlbF9kcC0+YXV4LCBEUF9U RVNUX1NJTktfTUlTQywKPiArCQkJCSAgICAmYnVmLCAxKSA8IDApCj4gIAkJcmV0dXJuIC1FSU87 Cj4gIAo+ICAJaWYgKCEoYnVmICYgRFBfVEVTVF9DUkNfU1VQUE9SVEVEKSkKPiBAQCAtNDA3Nyw3 ICs0MDc5LDcgQEAgc3RhdGljIGludCBpbnRlbF9kcF9zaW5rX2NyY19zdGFydChzdHJ1Y3QgaW50 ZWxfZHAgKmludGVsX2RwKQo+ICAKPiAgCWludGVsX2RwLT5zaW5rX2NyYy5sYXN0X2NvdW50ID0g YnVmICYgRFBfVEVTVF9DT1VOVF9NQVNLOwo+ICAKPiAtCWlmIChkcm1fZHBfZHBjZF9yZWFkYigm aW50ZWxfZHAtPmF1eCwgRFBfVEVTVF9TSU5LLCAmYnVmKSA8IDApCj4gKwlpZiAoaW50ZWxfZHBf ZHBjZF9yZWFkX3dha2UoJmludGVsX2RwLT5hdXgsIERQX1RFU1RfU0lOSywgJmJ1ZiwgMSkgPCAw KQo+ICAJCXJldHVybiAtRUlPOwo+ICAKPiAgCWhzd19kaXNhYmxlX2lwcyhpbnRlbF9jcnRjKTsK PiBAQCAtNDEwOSw4ICs0MTExLDggQEAgaW50IGludGVsX2RwX3NpbmtfY3JjKHN0cnVjdCBpbnRl bF9kcCAqaW50ZWxfZHAsIHU4ICpjcmMpCj4gIAlkbyB7Cj4gIAkJaW50ZWxfd2FpdF9mb3JfdmJs YW5rKGRldiwgaW50ZWxfY3J0Yy0+cGlwZSk7Cj4gIAo+IC0JCWlmIChkcm1fZHBfZHBjZF9yZWFk YigmaW50ZWxfZHAtPmF1eCwKPiAtCQkJCSAgICAgIERQX1RFU1RfU0lOS19NSVNDLCAmYnVmKSA8 IDApIHsKPiArCQlpZiAoaW50ZWxfZHBfZHBjZF9yZWFkX3dha2UoJmludGVsX2RwLT5hdXgsCj4g KwkJCQkJICAgIERQX1RFU1RfU0lOS19NSVNDLCAmYnVmLCAxKSA8IDApIHsKPiAgCQkJcmV0ID0g LUVJTzsKPiAgCQkJZ290byBzdG9wOwo+ICAJCX0KPiBAQCAtNDEyMyw3ICs0MTI1LDggQEAgaW50 IGludGVsX2RwX3NpbmtfY3JjKHN0cnVjdCBpbnRlbF9kcCAqaW50ZWxfZHAsIHU4ICpjcmMpCj4g IAkJaWYgKGNvdW50ID09IDApCj4gIAkJCWludGVsX2RwLT5zaW5rX2NyYy5sYXN0X2NvdW50ID0g MDsKPiAgCj4gLQkJaWYgKGRybV9kcF9kcGNkX3JlYWQoJmludGVsX2RwLT5hdXgsIERQX1RFU1Rf Q1JDX1JfQ1IsIGNyYywgNikgPCAwKSB7Cj4gKwkJaWYgKGludGVsX2RwX2RwY2RfcmVhZF93YWtl KCZpbnRlbF9kcC0+YXV4LCBEUF9URVNUX0NSQ19SX0NSLAo+ICsJCQkJCSAgICBjcmMsIDYpIDwg MCkgewo+ICAJCQlyZXQgPSAtRUlPOwo+ICAJCQlnb3RvIHN0b3A7Cj4gIAkJfQo+IC0tIAo+IDIu MS4wCj4gCj4gX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K PiBJbnRlbC1nZnggbWFpbGluZyBsaXN0Cj4gSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9y Zwo+IGh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1n ZngKCi0tIApEYW5pZWwgVmV0dGVyClNvZnR3YXJlIEVuZ2luZWVyLCBJbnRlbCBDb3Jwb3JhdGlv bgpodHRwOi8vYmxvZy5mZndsbC5jaApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVl ZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZv L2ludGVsLWdmeAo=