From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sean Paul Subject: Re: [PATCH 1/5] drm/i915: Read HDCP R0 thrice in case of mismatch Date: Mon, 26 Feb 2018 12:37:23 -0500 Message-ID: <20180226173723.GV223881@art_vandelay> References: <1519665159-28639-1-git-send-email-ramalingam.c@intel.com> <1519665159-28639-2-git-send-email-ramalingam.c@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-yb0-x243.google.com (mail-yb0-x243.google.com [IPv6:2607:f8b0:4002:c09::243]) by gabe.freedesktop.org (Postfix) with ESMTPS id 1AB0A6E0D9 for ; Mon, 26 Feb 2018 17:37:25 +0000 (UTC) Received: by mail-yb0-x243.google.com with SMTP id u5-v6so4295055ybf.4 for ; Mon, 26 Feb 2018 09:37:25 -0800 (PST) Content-Disposition: inline In-Reply-To: <1519665159-28639-2-git-send-email-ramalingam.c@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Ramalingam C Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gTW9uLCBGZWIgMjYsIDIwMTggYXQgMTA6NDI6MzVQTSArMDUzMCwgUmFtYWxpbmdhbSBDIHdy b3RlOgo+IEFzIHBlciBEUCBzcGVjIHdoZW4gUjAgbWlzbWF0Y2ggaXMgZGV0ZWN0ZWQsIEhEQ1Ag c291cmNlIHN1cHBvcnRlZAo+IHJlLXJlYWQgdGhlIFIwIGF0bGVhc3QgdHdpY2UuCj4gCj4gQW5k IEZvciBIRE1JIGFuZCBEUCBtaW5pbXVtIHdhaXQgcmVxdWlyZWQgZm9yIHRoZSBSMCBhdmFpbGFi aWxpdHkgaXMKPiAxMDBtU2VjLiBTbyB0aGlzIHBhdGNoIGNoYW5nZXMgdGhlIHdhaXQgdGltZSB0 byAxMDBtU2VjIGJ1dCByZXRyaWVzCj4gdHdpY2Ugd2l0aCB0aGUgdGltZSBpbnRlcnZhbCBvZiAx MDBtU2VjIGZvciBlYWNoIGF0dGVtcHQuCgoiUjAnIG11c3QgYmUgYXZhaWxhYmxlIGZvciB0aGUg SERDUCBUcmFuc21pdHRlciB0byByZWFkIHdpdGhpbiAxMDAKbWlsbGlzZWNvbmRzIGZyb20gdGhl IHRpbWUgdGhhdCB0aGUgSERDUCBUcmFuc21pdHRlciBmaW5pc2hlcyB3cml0aW5nIEFrc3YgdG8K dGhlIHZpZGVvIHJlY2VpdmVyLiIKCjEwMG1zIGlzIGEgbWluaW11bSwgd2FpdGluZyBmb3IgMzAw bXMgaXMgcXVpdGUgZ2VuZXJvdXMuCgpUaGUgcmV0cnkgaXMgdG8gYWNjb3VudCBmb3IgbGluayBl cnJvcnMsIHNvIHRoZXJlJ3Mgbm8gbmVlZCB0byBpbmNsdWRlIHRoZSB3YWl0CmluIHRoZSByZXRy eSBsb29wLgoKU2VhbgoKPiAKPiBEUCBDVFMgVGVzdDogMUEtMDYuCj4gCj4gU2lnbmVkLW9mZi1i eTogUmFtYWxpbmdhbSBDIDxyYW1hbGluZ2FtLmNAaW50ZWwuY29tPgo+IC0tLQo+ICBkcml2ZXJz L2dwdS9kcm0vaTkxNS9pbnRlbF9oZGNwLmMgfCAzNCArKysrKysrKysrKysrKysrKysrKysrLS0t LS0tLS0tLS0tCj4gIDEgZmlsZSBjaGFuZ2VkLCAyMiBpbnNlcnRpb25zKCspLCAxMiBkZWxldGlv bnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfaGRjcC5j IGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfaGRjcC5jCj4gaW5kZXggMTRjYTVkMzA1N2E3 Li43MzA2ODFkMmRiZmIgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxf aGRjcC5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfaGRjcC5jCj4gQEAgLTQ5 NiwyNSArNDk2LDM1IEBAIHN0YXRpYyBpbnQgaW50ZWxfaGRjcF9hdXRoKHN0cnVjdCBpbnRlbF9k aWdpdGFsX3BvcnQgKmludGVsX2RpZ19wb3J0LAo+ICAJfQo+ICAKPiAgCS8qCj4gLQkgKiBXYWl0 IGZvciBSMCcgdG8gYmVjb21lIGF2YWlsYWJsZS4gVGhlIHNwZWMgc2F5cyAxMDBtcyBmcm9tIEFr c3YsIGJ1dAo+IC0JICogc29tZSBtb25pdG9ycyBjYW4gdGFrZSBsb25nZXIgdGhhbiB0aGlzLiBX ZSdsbCBzZXQgdGhlIHRpbWVvdXQgYXQKPiAtCSAqIDMwMG1zIGp1c3QgdG8gYmUgc3VyZS4KPiAr CSAqIFdhaXQgZm9yIFIwJyB0byBiZWNvbWUgYXZhaWxhYmxlLiBUaGUgc3BlYyBzYXlzIG1pbmlt dW0gMTAwbXMgZnJvbQo+ICsJICogQWtzdiwgYnV0IHNvbWUgbW9uaXRvcnMgY2FuIHRha2UgbG9u Z2VyIHRoYW4gdGhpcy4gU28gd2UgYXJlCj4gKwkgKiBjb21iaW5lbHkgd2FpdGluZyBmb3IgMzAw bVNlYyBqdXN0IHRvIGJlIHN1cmUgaW4gY2FzZSBvZiBIRE1JLgo+ICsJICogRFAgSERDUCBTcGVj IG1hbmRhdGVzIHRoZSB0d28gbW9yZSByZWF0dGVtcHQgdG8gcmVhZCBSMCwgaW5jYXNlCj4gKwkg KiBvZiBSMCBtaXNtYXRjaC4KPiAgCSAqCj4gIAkgKiBPbiBEUCwgdGhlcmUncyBhbiBSMF9SRUFE WSBiaXQgYXZhaWxhYmxlIGJ1dCBubyBzdWNoIGJpdAo+ICAJICogZXhpc3RzIG9uIEhETUkuIFNp bmNlIHRoZSB1cHBlci1ib3VuZCBpcyB0aGUgc2FtZSwgd2UnbGwganVzdCBkbwo+ICAJICogdGhl IHN0dXBpZCB0aGluZyBpbnN0ZWFkIG9mIHBvbGxpbmcgb24gb25lIGFuZCBub3QgdGhlIG90aGVy Lgo+ICAJICovCj4gLQl3YWl0X3JlbWFpbmluZ19tc19mcm9tX2ppZmZpZXMocjBfcHJpbWVfZ2Vu X3N0YXJ0LCAzMDApOwo+ICAKPiAtCXJpLnJlZyA9IDA7Cj4gLQlyZXQgPSBzaGltLT5yZWFkX3Jp X3ByaW1lKGludGVsX2RpZ19wb3J0LCByaS5zaGltKTsKPiAtCWlmIChyZXQpCj4gLQkJcmV0dXJu IHJldDsKPiAtCUk5MTVfV1JJVEUoUE9SVF9IRENQX1JQUklNRShwb3J0KSwgcmkucmVnKTsKPiAr CXRyaWVzID0gMzsKPiArCWZvciAoaSA9IDA7IGkgPCB0cmllczsgaSsrKSB7Cj4gKwkJd2FpdF9y ZW1haW5pbmdfbXNfZnJvbV9qaWZmaWVzKHIwX3ByaW1lX2dlbl9zdGFydCwKPiArCQkJCQkgICAg ICAgMTAwICogKGkgKyAxKSk7Cj4gIAo+IC0JLyogV2FpdCBmb3IgUmkgcHJpbWUgbWF0Y2ggKi8K PiAtCWlmICh3YWl0X2ZvcihJOTE1X1JFQUQoUE9SVF9IRENQX1NUQVRVUyhwb3J0KSkgJgo+IC0J CSAgICAgKEhEQ1BfU1RBVFVTX1JJX01BVENIIHwgSERDUF9TVEFUVVNfRU5DKSwgMSkpIHsKPiAr CQlyaS5yZWcgPSAwOwo+ICsJCXJldCA9IHNoaW0tPnJlYWRfcmlfcHJpbWUoaW50ZWxfZGlnX3Bv cnQsIHJpLnNoaW0pOwo+ICsJCWlmIChyZXQpCj4gKwkJCXJldHVybiByZXQ7Cj4gKwkJSTkxNV9X UklURShQT1JUX0hEQ1BfUlBSSU1FKHBvcnQpLCByaS5yZWcpOwo+ICsKPiArCQkvKiBXYWl0IGZv ciBSaSBwcmltZSBtYXRjaCAqLwo+ICsJCWlmICghd2FpdF9mb3IoSTkxNV9SRUFEKFBPUlRfSERD UF9TVEFUVVMocG9ydCkpICYKPiArCQkgICAgKEhEQ1BfU1RBVFVTX1JJX01BVENIIHwgSERDUF9T VEFUVVNfRU5DKSwgMSkpCj4gKwkJCWJyZWFrOwo+ICsJfQo+ICsKPiArCWlmIChpID09IHRyaWVz KSB7Cj4gIAkJRFJNX0VSUk9SKCJUaW1lZCBvdXQgd2FpdGluZyBmb3IgUmkgcHJpbWUgbWF0Y2gg KCV4KVxuIiwKPiAgCQkJICBJOTE1X1JFQUQoUE9SVF9IRENQX1NUQVRVUyhwb3J0KSkpOwo+ICAJ CXJldHVybiAtRVRJTUVET1VUOwo+IC0tIAo+IDIuNy40Cj4gCgotLSAKU2VhbiBQYXVsLCBTb2Z0 d2FyZSBFbmdpbmVlciwgR29vZ2xlIC8gQ2hyb21pdW0gT1MKX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1n ZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21h aWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==