From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: [RFC] drm/i915/bdw+: Do not emit user interrupts when not needed Date: Fri, 18 Dec 2015 11:59:41 +0000 Message-ID: <1450439981-19700-1-git-send-email-tvrtko.ursulin@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 8FC736E27A for ; Fri, 18 Dec 2015 03:59:44 -0800 (PST) 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 List-Id: intel-gfx@lists.freedesktop.org RnJvbTogVHZydGtvIFVyc3VsaW4gPHR2cnRrby51cnN1bGluQGludGVsLmNvbT4KCldlIGNhbiBy ZWx5IG9uIGNvbnRleHQgY29tcGxldGUgaW50ZXJydXB0IHRvIHdha2UgdXAgdGhlIHdhaXRlcnMK YXBhcnQgaW4gdGhlIGNhc2Ugd2hlcmUgcmVxdWVzdHMgYXJlIG1lcmdlZCBpbnRvIGEgc2luZ2xl IEVMU1AKc3VibWlzc2lvbi4gSW4gdGhpcyBjYXNlIHdlIGluamVjdCBNSV9VU0VSX0lOVEVSUlVQ VFMgaW4gdGhlCnJpbmcgYnVmZmVyIHRvIGVuc3VyZSBwcm9tcHQgd2FrZS11cHMuCgpUaGlzIG9w dGltaXphdGlvbiBoYXMgdGhlIGVmZmVjdCBvbiBmb3IgZXhhbXBsZSBHTEJlbmNobWFyawpFZ3lw dCBvZmYtc2NyZWVuIHRlc3Qgb2YgZGVjcmVhc2luZyB0aGUgbnVtYmVyIG9mIGdlbmVyYXRlZApp bnRlcnJ1cHRzIHBlciBzZWNvbmQgYnkgYSBmYWN0b3Igb2YgdHdvLCBhbmQgY29udGV4dCBzd2l0 Y2hlZApieSBmYWN0b3Igb2YgZml2ZSB0byBzaXguCgpTaWduZWQtb2ZmLWJ5OiBUdnJ0a28gVXJz dWxpbiA8dHZydGtvLnVyc3VsaW5AaW50ZWwuY29tPgpDYzogQ2hyaXMgV2lsc29uIDxjaHJpc0Bj aHJpcy13aWxzb24uY28udWs+Ci0tLQogZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuaCAg fCAgMSArCiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2lycS5jICB8IDI0ICsrKysrKysrKysr Ky0tLS0tLS0tLS0tLQogZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfbHJjLmMgfCAyNiArKysr KysrKysrKysrKysrKysrKysrKysrLQogMyBmaWxlcyBjaGFuZ2VkLCAzOCBpbnNlcnRpb25zKCsp LCAxMyBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1 X2Rydi5oIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuaAppbmRleCAxZDI4ZDkwZWQ5 MDEuLmY2ZmQyMDIzYWFmMCAxMDA2NDQKLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9k cnYuaAorKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5oCkBAIC0yODExLDYgKzI4 MTEsNyBAQCBpYnhfZGlzYWJsZV9kaXNwbGF5X2ludGVycnVwdChzdHJ1Y3QgZHJtX2k5MTVfcHJp dmF0ZSAqZGV2X3ByaXYsIHVpbnQzMl90IGJpdHMpCiAJaWJ4X2Rpc3BsYXlfaW50ZXJydXB0X3Vw ZGF0ZShkZXZfcHJpdiwgYml0cywgMCk7CiB9CiAKK3ZvaWQgaW50ZWxfbm90aWZ5X3Jpbmcoc3Ry dWN0IGludGVsX2VuZ2luZV9jcyAqcmluZyk7CiAKIC8qIGk5MTVfZ2VtLmMgKi8KIGludCBpOTE1 X2dlbV9jcmVhdGVfaW9jdGwoc3RydWN0IGRybV9kZXZpY2UgKmRldiwgdm9pZCAqZGF0YSwKZGlm ZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfaXJxLmMgYi9kcml2ZXJzL2dwdS9k cm0vaTkxNS9pOTE1X2lycS5jCmluZGV4IDNmOGM3NTM5OTdiYS4uYTIwODdiYWQwZDY0IDEwMDY0 NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2lycS5jCisrKyBiL2RyaXZlcnMvZ3B1 L2RybS9pOTE1L2k5MTVfaXJxLmMKQEAgLTk5NCw3ICs5OTQsNyBAQCBzdGF0aWMgdm9pZCBpcm9u bGFrZV9ycHNfY2hhbmdlX2lycV9oYW5kbGVyKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYpCiAJcmV0 dXJuOwogfQogCi1zdGF0aWMgdm9pZCBub3RpZnlfcmluZyhzdHJ1Y3QgaW50ZWxfZW5naW5lX2Nz ICpyaW5nKQordm9pZCBpbnRlbF9ub3RpZnlfcmluZyhzdHJ1Y3QgaW50ZWxfZW5naW5lX2NzICpy aW5nKQogewogCWlmICghaW50ZWxfcmluZ19pbml0aWFsaXplZChyaW5nKSkKIAkJcmV0dXJuOwpA QCAtMTI5MSw5ICsxMjkxLDkgQEAgc3RhdGljIHZvaWQgaWxrX2d0X2lycV9oYW5kbGVyKHN0cnVj dCBkcm1fZGV2aWNlICpkZXYsCiB7CiAJaWYgKGd0X2lpciAmCiAJICAgIChHVF9SRU5ERVJfVVNF Ul9JTlRFUlJVUFQgfCBHVF9SRU5ERVJfUElQRUNUTF9OT1RJRllfSU5URVJSVVBUKSkKLQkJbm90 aWZ5X3JpbmcoJmRldl9wcml2LT5yaW5nW1JDU10pOworCQlpbnRlbF9ub3RpZnlfcmluZygmZGV2 X3ByaXYtPnJpbmdbUkNTXSk7CiAJaWYgKGd0X2lpciAmIElMS19CU0RfVVNFUl9JTlRFUlJVUFQp Ci0JCW5vdGlmeV9yaW5nKCZkZXZfcHJpdi0+cmluZ1tWQ1NdKTsKKwkJaW50ZWxfbm90aWZ5X3Jp bmcoJmRldl9wcml2LT5yaW5nW1ZDU10pOwogfQogCiBzdGF0aWMgdm9pZCBzbmJfZ3RfaXJxX2hh bmRsZXIoc3RydWN0IGRybV9kZXZpY2UgKmRldiwKQEAgLTEzMDMsMTEgKzEzMDMsMTEgQEAgc3Rh dGljIHZvaWQgc25iX2d0X2lycV9oYW5kbGVyKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYsCiAKIAlp ZiAoZ3RfaWlyICYKIAkgICAgKEdUX1JFTkRFUl9VU0VSX0lOVEVSUlVQVCB8IEdUX1JFTkRFUl9Q SVBFQ1RMX05PVElGWV9JTlRFUlJVUFQpKQotCQlub3RpZnlfcmluZygmZGV2X3ByaXYtPnJpbmdb UkNTXSk7CisJCWludGVsX25vdGlmeV9yaW5nKCZkZXZfcHJpdi0+cmluZ1tSQ1NdKTsKIAlpZiAo Z3RfaWlyICYgR1RfQlNEX1VTRVJfSU5URVJSVVBUKQotCQlub3RpZnlfcmluZygmZGV2X3ByaXYt PnJpbmdbVkNTXSk7CisJCWludGVsX25vdGlmeV9yaW5nKCZkZXZfcHJpdi0+cmluZ1tWQ1NdKTsK IAlpZiAoZ3RfaWlyICYgR1RfQkxUX1VTRVJfSU5URVJSVVBUKQotCQlub3RpZnlfcmluZygmZGV2 X3ByaXYtPnJpbmdbQkNTXSk7CisJCWludGVsX25vdGlmeV9yaW5nKCZkZXZfcHJpdi0+cmluZ1tC Q1NdKTsKIAogCWlmIChndF9paXIgJiAoR1RfQkxUX0NTX0VSUk9SX0lOVEVSUlVQVCB8CiAJCSAg ICAgIEdUX0JTRF9DU19FUlJPUl9JTlRFUlJVUFQgfApAQCAtMTMyMiw3ICsxMzIyLDcgQEAgc3Rh dGljIF9fYWx3YXlzX2lubGluZSB2b2lkCiBnZW44X2NzX2lycV9oYW5kbGVyKHN0cnVjdCBpbnRl bF9lbmdpbmVfY3MgKnJpbmcsIHUzMiBpaXIsIGludCB0ZXN0X3NoaWZ0KQogewogCWlmIChpaXIg JiAoR1RfUkVOREVSX1VTRVJfSU5URVJSVVBUIDw8IHRlc3Rfc2hpZnQpKQotCQlub3RpZnlfcmlu ZyhyaW5nKTsKKwkJaW50ZWxfbm90aWZ5X3JpbmcocmluZyk7CiAJaWYgKGlpciAmIChHVF9DT05U RVhUX1NXSVRDSF9JTlRFUlJVUFQgPDwgdGVzdF9zaGlmdCkpCiAJCWludGVsX2xyY19pcnFfaGFu ZGxlcihyaW5nKTsKIH0KQEAgLTE2MjksNyArMTYyOSw3IEBAIHN0YXRpYyB2b2lkIGdlbjZfcnBz X2lycV9oYW5kbGVyKHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiwgdTMyIHBtX2lp cikKIAogCWlmIChIQVNfVkVCT1goZGV2X3ByaXYtPmRldikpIHsKIAkJaWYgKHBtX2lpciAmIFBN X1ZFQk9YX1VTRVJfSU5URVJSVVBUKQotCQkJbm90aWZ5X3JpbmcoJmRldl9wcml2LT5yaW5nW1ZF Q1NdKTsKKwkJCWludGVsX25vdGlmeV9yaW5nKCZkZXZfcHJpdi0+cmluZ1tWRUNTXSk7CiAKIAkJ aWYgKHBtX2lpciAmIFBNX1ZFQk9YX0NTX0VSUk9SX0lOVEVSUlVQVCkKIAkJCURSTV9ERUJVRygi Q29tbWFuZCBwYXJzZXIgZXJyb3IsIHBtX2lpciAweCUwOHhcbiIsIHBtX2lpcik7CkBAIC0zOTYx LDcgKzM5NjEsNyBAQCBzdGF0aWMgaXJxcmV0dXJuX3QgaTh4eF9pcnFfaGFuZGxlcihpbnQgaXJx LCB2b2lkICphcmcpCiAJCW5ld19paXIgPSBJOTE1X1JFQUQxNihJSVIpOyAvKiBGbHVzaCBwb3N0 ZWQgd3JpdGVzICovCiAKIAkJaWYgKGlpciAmIEk5MTVfVVNFUl9JTlRFUlJVUFQpCi0JCQlub3Rp ZnlfcmluZygmZGV2X3ByaXYtPnJpbmdbUkNTXSk7CisJCQlpbnRlbF9ub3RpZnlfcmluZygmZGV2 X3ByaXYtPnJpbmdbUkNTXSk7CiAKIAkJZm9yX2VhY2hfcGlwZShkZXZfcHJpdiwgcGlwZSkgewog CQkJaW50IHBsYW5lID0gcGlwZTsKQEAgLTQxNTcsNyArNDE1Nyw3IEBAIHN0YXRpYyBpcnFyZXR1 cm5fdCBpOTE1X2lycV9oYW5kbGVyKGludCBpcnEsIHZvaWQgKmFyZykKIAkJbmV3X2lpciA9IEk5 MTVfUkVBRChJSVIpOyAvKiBGbHVzaCBwb3N0ZWQgd3JpdGVzICovCiAKIAkJaWYgKGlpciAmIEk5 MTVfVVNFUl9JTlRFUlJVUFQpCi0JCQlub3RpZnlfcmluZygmZGV2X3ByaXYtPnJpbmdbUkNTXSk7 CisJCQlpbnRlbF9ub3RpZnlfcmluZygmZGV2X3ByaXYtPnJpbmdbUkNTXSk7CiAKIAkJZm9yX2Vh Y2hfcGlwZShkZXZfcHJpdiwgcGlwZSkgewogCQkJaW50IHBsYW5lID0gcGlwZTsKQEAgLTQzODcs OSArNDM4Nyw5IEBAIHN0YXRpYyBpcnFyZXR1cm5fdCBpOTY1X2lycV9oYW5kbGVyKGludCBpcnEs IHZvaWQgKmFyZykKIAkJbmV3X2lpciA9IEk5MTVfUkVBRChJSVIpOyAvKiBGbHVzaCBwb3N0ZWQg d3JpdGVzICovCiAKIAkJaWYgKGlpciAmIEk5MTVfVVNFUl9JTlRFUlJVUFQpCi0JCQlub3RpZnlf cmluZygmZGV2X3ByaXYtPnJpbmdbUkNTXSk7CisJCQlpbnRlbF9ub3RpZnlfcmluZygmZGV2X3By aXYtPnJpbmdbUkNTXSk7CiAJCWlmIChpaXIgJiBJOTE1X0JTRF9VU0VSX0lOVEVSUlVQVCkKLQkJ CW5vdGlmeV9yaW5nKCZkZXZfcHJpdi0+cmluZ1tWQ1NdKTsKKwkJCWludGVsX25vdGlmeV9yaW5n KCZkZXZfcHJpdi0+cmluZ1tWQ1NdKTsKIAogCQlmb3JfZWFjaF9waXBlKGRldl9wcml2LCBwaXBl KSB7CiAJCQlpZiAocGlwZV9zdGF0c1twaXBlXSAmIFBJUEVfU1RBUlRfVkJMQU5LX0lOVEVSUlVQ VF9TVEFUVVMgJiYKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2xyYy5j IGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfbHJjLmMKaW5kZXggMjdmMDYxOThhNTFlLi5k OWJlODc4ZGJkZTcgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2xyYy5j CisrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2xyYy5jCkBAIC0zNTksNiArMzU5LDEz IEBAIHN0YXRpYyB2b2lkIGV4ZWNsaXN0c19lbHNwX3dyaXRlKHN0cnVjdCBkcm1faTkxNV9nZW1f cmVxdWVzdCAqcnEwLAogCXNwaW5fdW5sb2NrKCZkZXZfcHJpdi0+dW5jb3JlLmxvY2spOwogfQog CitzdGF0aWMgdm9pZCBleGVjbGlzdHNfZW1pdF91c2VyX2ludGVycnVwdChzdHJ1Y3QgZHJtX2k5 MTVfZ2VtX3JlcXVlc3QgKnJlcSkKK3sKKwlzdHJ1Y3QgaW50ZWxfcmluZ2J1ZmZlciAqcmluZ2J1 ZiA9IHJlcS0+cmluZ2J1ZjsKKworCWlvd3JpdGUzMihNSV9VU0VSX0lOVEVSUlVQVCwgcmluZ2J1 Zi0+dmlydHVhbF9zdGFydCArIHJlcS0+dGFpbCAtIDgpOworfQorCiBzdGF0aWMgaW50IGV4ZWNs aXN0c191cGRhdGVfY29udGV4dChzdHJ1Y3QgZHJtX2k5MTVfZ2VtX3JlcXVlc3QgKnJxKQogewog CXN0cnVjdCBpbnRlbF9lbmdpbmVfY3MgKnJpbmcgPSBycS0+cmluZzsKQEAgLTQzMyw2ICs0NDAs MTIgQEAgc3RhdGljIHZvaWQgZXhlY2xpc3RzX2NvbnRleHRfdW5xdWV1ZShzdHJ1Y3QgaW50ZWxf ZW5naW5lX2NzICpyaW5nKQogCQkJY3Vyc29yLT5lbHNwX3N1Ym1pdHRlZCA9IHJlcTAtPmVsc3Bf c3VibWl0dGVkOwogCQkJbGlzdF9tb3ZlX3RhaWwoJnJlcTAtPmV4ZWNsaXN0X2xpbmssCiAJCQkJ ICAgICAgICZyaW5nLT5leGVjbGlzdF9yZXRpcmVkX3JlcV9saXN0KTsKKwkJCS8qCisJCQkgKiBX aGVuIG1lcmdpbmcgcmVxdWVzdHMgbWFrZSBzdXJlIHRoZXJlIGlzIHN0aWxsCisJCQkgKiBzb21l dGhpbmcgYWZ0ZXIgZWFjaCBiYXRjaCBidWZmZXIgdG8gd2FrZSB1cCB3YWl0ZXJzLgorCQkJICov CisJCQlpZiAoY3Vyc29yICE9IHJlcTApCisJCQkJZXhlY2xpc3RzX2VtaXRfdXNlcl9pbnRlcnJ1 cHQocmVxMCk7CiAJCQlyZXEwID0gY3Vyc29yOwogCQl9IGVsc2UgewogCQkJcmVxMSA9IGN1cnNv cjsKQEAgLTQ3Miw2ICs0ODUsMTIgQEAgc3RhdGljIGJvb2wgZXhlY2xpc3RzX2NoZWNrX3JlbW92 ZV9yZXF1ZXN0KHN0cnVjdCBpbnRlbF9lbmdpbmVfY3MgKnJpbmcsCiAKIAlhc3NlcnRfc3Bpbl9s b2NrZWQoJnJpbmctPmV4ZWNsaXN0X2xvY2spOwogCisJLyoKKwkgKiBUaGlzIGlzIGVmZmVjdGl2 ZWx5IGEgY29udGV4dCBjb21wbGV0ZSBpbnRlcnJ1cHQgc28gd2FrZQorCSAqIHVwIHBvdGVudGlh bCB3YWl0ZXJzIG9uIHRoaXMgcmluZy4KKwkgKi8KKwlpbnRlbF9ub3RpZnlfcmluZyhyaW5nKTsK KwogCWhlYWRfcmVxID0gbGlzdF9maXJzdF9lbnRyeV9vcl9udWxsKCZyaW5nLT5leGVjbGlzdF9x dWV1ZSwKIAkJCQkJICAgIHN0cnVjdCBkcm1faTkxNV9nZW1fcmVxdWVzdCwKIAkJCQkJICAgIGV4 ZWNsaXN0X2xpbmspOwpAQCAtMTgxMiw3ICsxODMxLDEyIEBAIHN0YXRpYyBpbnQgZ2VuOF9lbWl0 X3JlcXVlc3Qoc3RydWN0IGRybV9pOTE1X2dlbV9yZXF1ZXN0ICpyZXF1ZXN0KQogCQkJCShJOTE1 X0dFTV9IV1NfSU5ERVggPDwgTUlfU1RPUkVfRFdPUkRfSU5ERVhfU0hJRlQpKSk7CiAJaW50ZWxf bG9naWNhbF9yaW5nX2VtaXQocmluZ2J1ZiwgMCk7CiAJaW50ZWxfbG9naWNhbF9yaW5nX2VtaXQo cmluZ2J1ZiwgaTkxNV9nZW1fcmVxdWVzdF9nZXRfc2Vxbm8ocmVxdWVzdCkpOwotCWludGVsX2xv Z2ljYWxfcmluZ19lbWl0KHJpbmdidWYsIE1JX1VTRVJfSU5URVJSVVBUKTsKKwkvKgorCSAqIEZv bGxvd2luZyBub29wIGlzIGEgcGxhY2Vob2xkZXIgZm9yIGFuIG9wdGlvbmFsIE1JX1VTRVJfSU5U RVJSVVBUCisJICogd2hpY2ggd2lsbCBiZSBwYXRjaGVkIGluIGF0IEVMU1Agc3VibWlzc2lvbiB0 aW1lIGlmIHRoaXMgcmVxdWVzdAorCSAqIHdpbGwgbm90IGJlIGVuZGluZyB3aXRoIGEgY29udGV4 dCBjb21wbGV0ZSBpbnRlcnJ1cHQuCisJICovCisJaW50ZWxfbG9naWNhbF9yaW5nX2VtaXQocmlu Z2J1ZiwgTUlfTk9PUCk7CiAJaW50ZWxfbG9naWNhbF9yaW5nX2VtaXQocmluZ2J1ZiwgTUlfTk9P UCk7CiAJaW50ZWxfbG9naWNhbF9yaW5nX2FkdmFuY2VfYW5kX3N1Ym1pdChyZXF1ZXN0KTsKIAot LSAKMS45LjEKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f CkludGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpo dHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==