From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ramalingam C Subject: [PATCH 1/5] drm/i915: Read HDCP R0 thrice in case of mismatch Date: Mon, 26 Feb 2018 22:42:35 +0530 Message-ID: <1519665159-28639-2-git-send-email-ramalingam.c@intel.com> References: <1519665159-28639-1-git-send-email-ramalingam.c@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1519665159-28639-1-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: intel-gfx@lists.freedesktop.org, seanpaul@chromium.org, dri-devel@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org QXMgcGVyIERQIHNwZWMgd2hlbiBSMCBtaXNtYXRjaCBpcyBkZXRlY3RlZCwgSERDUCBzb3VyY2Ug c3VwcG9ydGVkCnJlLXJlYWQgdGhlIFIwIGF0bGVhc3QgdHdpY2UuCgpBbmQgRm9yIEhETUkgYW5k IERQIG1pbmltdW0gd2FpdCByZXF1aXJlZCBmb3IgdGhlIFIwIGF2YWlsYWJpbGl0eSBpcwoxMDBt U2VjLiBTbyB0aGlzIHBhdGNoIGNoYW5nZXMgdGhlIHdhaXQgdGltZSB0byAxMDBtU2VjIGJ1dCBy ZXRyaWVzCnR3aWNlIHdpdGggdGhlIHRpbWUgaW50ZXJ2YWwgb2YgMTAwbVNlYyBmb3IgZWFjaCBh dHRlbXB0LgoKRFAgQ1RTIFRlc3Q6IDFBLTA2LgoKU2lnbmVkLW9mZi1ieTogUmFtYWxpbmdhbSBD IDxyYW1hbGluZ2FtLmNAaW50ZWwuY29tPgotLS0KIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVs X2hkY3AuYyB8IDM0ICsrKysrKysrKysrKysrKysrKysrKystLS0tLS0tLS0tLS0KIDEgZmlsZSBj aGFuZ2VkLCAyMiBpbnNlcnRpb25zKCspLCAxMiBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9k cml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9oZGNwLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9p bnRlbF9oZGNwLmMKaW5kZXggMTRjYTVkMzA1N2E3Li43MzA2ODFkMmRiZmIgMTAwNjQ0Ci0tLSBh L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2hkY3AuYworKysgYi9kcml2ZXJzL2dwdS9kcm0v aTkxNS9pbnRlbF9oZGNwLmMKQEAgLTQ5NiwyNSArNDk2LDM1IEBAIHN0YXRpYyBpbnQgaW50ZWxf aGRjcF9hdXRoKHN0cnVjdCBpbnRlbF9kaWdpdGFsX3BvcnQgKmludGVsX2RpZ19wb3J0LAogCX0K IAogCS8qCi0JICogV2FpdCBmb3IgUjAnIHRvIGJlY29tZSBhdmFpbGFibGUuIFRoZSBzcGVjIHNh eXMgMTAwbXMgZnJvbSBBa3N2LCBidXQKLQkgKiBzb21lIG1vbml0b3JzIGNhbiB0YWtlIGxvbmdl ciB0aGFuIHRoaXMuIFdlJ2xsIHNldCB0aGUgdGltZW91dCBhdAotCSAqIDMwMG1zIGp1c3QgdG8g YmUgc3VyZS4KKwkgKiBXYWl0IGZvciBSMCcgdG8gYmVjb21lIGF2YWlsYWJsZS4gVGhlIHNwZWMg c2F5cyBtaW5pbXVtIDEwMG1zIGZyb20KKwkgKiBBa3N2LCBidXQgc29tZSBtb25pdG9ycyBjYW4g dGFrZSBsb25nZXIgdGhhbiB0aGlzLiBTbyB3ZSBhcmUKKwkgKiBjb21iaW5lbHkgd2FpdGluZyBm b3IgMzAwbVNlYyBqdXN0IHRvIGJlIHN1cmUgaW4gY2FzZSBvZiBIRE1JLgorCSAqIERQIEhEQ1Ag U3BlYyBtYW5kYXRlcyB0aGUgdHdvIG1vcmUgcmVhdHRlbXB0IHRvIHJlYWQgUjAsIGluY2FzZQor CSAqIG9mIFIwIG1pc21hdGNoLgogCSAqCiAJICogT24gRFAsIHRoZXJlJ3MgYW4gUjBfUkVBRFkg Yml0IGF2YWlsYWJsZSBidXQgbm8gc3VjaCBiaXQKIAkgKiBleGlzdHMgb24gSERNSS4gU2luY2Ug dGhlIHVwcGVyLWJvdW5kIGlzIHRoZSBzYW1lLCB3ZSdsbCBqdXN0IGRvCiAJICogdGhlIHN0dXBp ZCB0aGluZyBpbnN0ZWFkIG9mIHBvbGxpbmcgb24gb25lIGFuZCBub3QgdGhlIG90aGVyLgogCSAq LwotCXdhaXRfcmVtYWluaW5nX21zX2Zyb21famlmZmllcyhyMF9wcmltZV9nZW5fc3RhcnQsIDMw MCk7CiAKLQlyaS5yZWcgPSAwOwotCXJldCA9IHNoaW0tPnJlYWRfcmlfcHJpbWUoaW50ZWxfZGln X3BvcnQsIHJpLnNoaW0pOwotCWlmIChyZXQpCi0JCXJldHVybiByZXQ7Ci0JSTkxNV9XUklURShQ T1JUX0hEQ1BfUlBSSU1FKHBvcnQpLCByaS5yZWcpOworCXRyaWVzID0gMzsKKwlmb3IgKGkgPSAw OyBpIDwgdHJpZXM7IGkrKykgeworCQl3YWl0X3JlbWFpbmluZ19tc19mcm9tX2ppZmZpZXMocjBf cHJpbWVfZ2VuX3N0YXJ0LAorCQkJCQkgICAgICAgMTAwICogKGkgKyAxKSk7CiAKLQkvKiBXYWl0 IGZvciBSaSBwcmltZSBtYXRjaCAqLwotCWlmICh3YWl0X2ZvcihJOTE1X1JFQUQoUE9SVF9IRENQ X1NUQVRVUyhwb3J0KSkgJgotCQkgICAgIChIRENQX1NUQVRVU19SSV9NQVRDSCB8IEhEQ1BfU1RB VFVTX0VOQyksIDEpKSB7CisJCXJpLnJlZyA9IDA7CisJCXJldCA9IHNoaW0tPnJlYWRfcmlfcHJp bWUoaW50ZWxfZGlnX3BvcnQsIHJpLnNoaW0pOworCQlpZiAocmV0KQorCQkJcmV0dXJuIHJldDsK KwkJSTkxNV9XUklURShQT1JUX0hEQ1BfUlBSSU1FKHBvcnQpLCByaS5yZWcpOworCisJCS8qIFdh aXQgZm9yIFJpIHByaW1lIG1hdGNoICovCisJCWlmICghd2FpdF9mb3IoSTkxNV9SRUFEKFBPUlRf SERDUF9TVEFUVVMocG9ydCkpICYKKwkJICAgIChIRENQX1NUQVRVU19SSV9NQVRDSCB8IEhEQ1Bf U1RBVFVTX0VOQyksIDEpKQorCQkJYnJlYWs7CisJfQorCisJaWYgKGkgPT0gdHJpZXMpIHsKIAkJ RFJNX0VSUk9SKCJUaW1lZCBvdXQgd2FpdGluZyBmb3IgUmkgcHJpbWUgbWF0Y2ggKCV4KVxuIiwK IAkJCSAgSTkxNV9SRUFEKFBPUlRfSERDUF9TVEFUVVMocG9ydCkpKTsKIAkJcmV0dXJuIC1FVElN RURPVVQ7Ci0tIAoyLjcuNAoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0 b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50 ZWwtZ2Z4Cg==