From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ramalingam C Subject: [PATCH v2 1/4] drm/i915: Read HDCP R0 thrice in case of mismatch Date: Thu, 29 Mar 2018 19:39:05 +0530 Message-ID: <1522332548-15370-2-git-send-email-ramalingam.c@intel.com> References: <1522332548-15370-1-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: <1522332548-15370-1-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, dri-devel@lists.freedesktop.org, seanpaul@chromium.org Cc: rodrigo.vivi@intel.com List-Id: intel-gfx@lists.freedesktop.org QXMgcGVyIERQIHNwZWMgd2hlbiBSMCBtaXNtYXRjaCBpcyBkZXRlY3RlZCwgSERDUCBzb3VyY2Ug c3VwcG9ydGVkCnJlLXJlYWQgdGhlIFIwIGF0bGVhc3QgdHdpY2UuCgpBbmQgRm9yIEhETUkgYW5k IERQIG1pbmltdW0gd2FpdCByZXF1aXJlZCBmb3IgdGhlIFIwIGF2YWlsYWJpbGl0eSBpcwoxMDBt U2VjLiBTbyB0aGlzIHBhdGNoIGNoYW5nZXMgdGhlIHdhaXQgdGltZSB0byAxMDBtU2VjIGJ1dCBy ZXRyaWVzCnR3aWNlIHdpdGggdGhlIHRpbWUgaW50ZXJ2YWwgb2YgMTAwbVNlYyBmb3IgZWFjaCBh dHRlbXB0LgoKVGhpcyBwYXRjaCBpcyBuZWVkZWQgZm9yIERQIEhEQ1AxLjQgQ1RTIFRlc3Q6IDFB LTA2LgoKU2lnbmVkLW9mZi1ieTogUmFtYWxpbmdhbSBDIDxyYW1hbGluZ2FtLmNAaW50ZWwuY29t PgotLS0KIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2hkY3AuYyB8IDMwICsrKysrKysrKysr KysrKysrKystLS0tLS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDE5IGluc2VydGlvbnMoKyksIDEx IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2hk Y3AuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2hkY3AuYwppbmRleCAxNGNhNWQzMDU3 YTcuLjk2YjkwMjVkYzc1OSAxMDA2NDQKLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxf aGRjcC5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2hkY3AuYwpAQCAtNDk2LDkg KzQ5NiwxMSBAQCBzdGF0aWMgaW50IGludGVsX2hkY3BfYXV0aChzdHJ1Y3QgaW50ZWxfZGlnaXRh bF9wb3J0ICppbnRlbF9kaWdfcG9ydCwKIAl9CiAKIAkvKgotCSAqIFdhaXQgZm9yIFIwJyB0byBi ZWNvbWUgYXZhaWxhYmxlLiBUaGUgc3BlYyBzYXlzIDEwMG1zIGZyb20gQWtzdiwgYnV0Ci0JICog c29tZSBtb25pdG9ycyBjYW4gdGFrZSBsb25nZXIgdGhhbiB0aGlzLiBXZSdsbCBzZXQgdGhlIHRp bWVvdXQgYXQKLQkgKiAzMDBtcyBqdXN0IHRvIGJlIHN1cmUuCisJICogV2FpdCBmb3IgUjAnIHRv IGJlY29tZSBhdmFpbGFibGUuIFRoZSBzcGVjIHNheXMgbWluaW11bSAxMDBtcyBmcm9tCisJICog QWtzdiwgYnV0IHNvbWUgbW9uaXRvcnMgY2FuIHRha2UgbG9uZ2VyIHRoYW4gdGhpcy4gU28gd2Ug YXJlCisJICogY29tYmluZWx5IHdhaXRpbmcgZm9yIDMwMG1TZWMganVzdCB0byBiZSBzdXJlIGlu IGNhc2Ugb2YgSERNSS4KKwkgKiBEUCBIRENQIFNwZWMgbWFuZGF0ZXMgdGhlIHR3byBtb3JlIHJl YXR0ZW1wdCB0byByZWFkIFIwLCBpbmNhc2UKKwkgKiBvZiBSMCBtaXNtYXRjaC4KIAkgKgogCSAq IE9uIERQLCB0aGVyZSdzIGFuIFIwX1JFQURZIGJpdCBhdmFpbGFibGUgYnV0IG5vIHN1Y2ggYml0 CiAJICogZXhpc3RzIG9uIEhETUkuIFNpbmNlIHRoZSB1cHBlci1ib3VuZCBpcyB0aGUgc2FtZSwg d2UnbGwganVzdCBkbwpAQCAtNTA2LDE1ICs1MDgsMjEgQEAgc3RhdGljIGludCBpbnRlbF9oZGNw X2F1dGgoc3RydWN0IGludGVsX2RpZ2l0YWxfcG9ydCAqaW50ZWxfZGlnX3BvcnQsCiAJICovCiAJ d2FpdF9yZW1haW5pbmdfbXNfZnJvbV9qaWZmaWVzKHIwX3ByaW1lX2dlbl9zdGFydCwgMzAwKTsK IAotCXJpLnJlZyA9IDA7Ci0JcmV0ID0gc2hpbS0+cmVhZF9yaV9wcmltZShpbnRlbF9kaWdfcG9y dCwgcmkuc2hpbSk7Ci0JaWYgKHJldCkKLQkJcmV0dXJuIHJldDsKLQlJOTE1X1dSSVRFKFBPUlRf SERDUF9SUFJJTUUocG9ydCksIHJpLnJlZyk7CisJdHJpZXMgPSAzOworCWZvciAoaSA9IDA7IGkg PCB0cmllczsgaSsrKSB7CisJCXJpLnJlZyA9IDA7CisJCXJldCA9IHNoaW0tPnJlYWRfcmlfcHJp bWUoaW50ZWxfZGlnX3BvcnQsIHJpLnNoaW0pOworCQlpZiAocmV0KQorCQkJcmV0dXJuIHJldDsK KwkJSTkxNV9XUklURShQT1JUX0hEQ1BfUlBSSU1FKHBvcnQpLCByaS5yZWcpOwogCi0JLyogV2Fp dCBmb3IgUmkgcHJpbWUgbWF0Y2ggKi8KLQlpZiAod2FpdF9mb3IoSTkxNV9SRUFEKFBPUlRfSERD UF9TVEFUVVMocG9ydCkpICYKLQkJICAgICAoSERDUF9TVEFUVVNfUklfTUFUQ0ggfCBIRENQX1NU QVRVU19FTkMpLCAxKSkgeworCQkvKiBXYWl0IGZvciBSaSBwcmltZSBtYXRjaCAqLworCQlpZiAo IXdhaXRfZm9yKEk5MTVfUkVBRChQT1JUX0hEQ1BfU1RBVFVTKHBvcnQpKSAmCisJCSAgICAoSERD UF9TVEFUVVNfUklfTUFUQ0ggfCBIRENQX1NUQVRVU19FTkMpLCAxKSkKKwkJCWJyZWFrOworCX0K KworCWlmIChpID09IHRyaWVzKSB7CiAJCURSTV9FUlJPUigiVGltZWQgb3V0IHdhaXRpbmcgZm9y IFJpIHByaW1lIG1hdGNoICgleClcbiIsCiAJCQkgIEk5MTVfUkVBRChQT1JUX0hEQ1BfU1RBVFVT KHBvcnQpKSk7CiAJCXJldHVybiAtRVRJTUVET1VUOwotLSAKMi43LjQKCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCkludGVsLWdmeCBtYWlsaW5nIGxpc3QK SW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9w Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=