From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wilson Subject: [PATCH 3/5] drm/i915: "Race-to-idle" after switching to the kernel context Date: Tue, 29 May 2018 14:29:20 +0100 Message-ID: <20180529132922.6831-3-chris@chris-wilson.co.uk> References: <20180529132922.6831-1-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from fireflyinternet.com (mail.fireflyinternet.com [109.228.58.192]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5092F6E418 for ; Tue, 29 May 2018 13:29:38 +0000 (UTC) In-Reply-To: <20180529132922.6831-1-chris@chris-wilson.co.uk> 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 Cc: Mika Kuoppala List-Id: intel-gfx@lists.freedesktop.org RHVyaW5nIHN1c3BlbmQgd2Ugd2FudCB0byBmbHVzaCBvdXQgYWxsIGFjdGl2ZSBjb250ZXh0cyBh bmQgdGhlaXIKcmVuZGVyaW5nLiBUbyBkbyBzbyB3ZSBxdWV1ZSBhIHJlcXVlc3QgZnJvbSB0aGUg a2VybmVsJ3MgY29udGV4dCwgb25jZQp3ZSBrbm93IHRoYXQgcmVxdWVzdCBpcyBkb25lLCB3ZSBr bm93IHRoZSBHUFUgaXMgY29tcGxldGVseSBpZGxlLiBUbwpzcGVlZCB1cCB0aGF0IHN3aXRjaCBi dW1wIHRoZSBHUFUgY2xvY2tzLgoKU3dpdGNoaW5nIHRvIHRoZSBrZXJuZWwgY29udGV4dCBwcmlv ciB0byBpZGxpbmcgaXMgYWxzbyB1c2VkIHRvIGVuZm9yY2UKYSBiYXJyaWVyIGJlZm9yZSBjaGFu Z2luZyBPQSBwcm9wZXJ0aWVzLCBhbmQgd2hlbiBldmljdGluZyBhY3RpdmUKcmVuZGVyaW5nIGZy b20gdGhlIGdsb2JhbCBHVFQuIEFsbCBjYXNlcyB3aGVyZSB3ZSBkbyB3YW50IHRvCnJhY2UtdG8t aWRsZS4KCnYyOiBMaW1pdCB0aGUgYm9vc3RpbmcgdG8gb25seSB0aGUgc3dpdGNoIGJlZm9yZSBz dXNwZW5kLgp2MzogTGltaXQgaXQgdG8gdGhlIHdhaXQtZm9yLWlkbGUgb24gc3VzcGVuZC4KClNp Z25lZC1vZmYtYnk6IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVrPgpDYzog RGF2aWQgV2VpbmVoYWxsIDxkYXZpZC53ZWluZWhhbGxAbGludXguaW50ZWwuY29tPgpDYzogTWlr YSBLdW9wcGFsYSA8bWlrYS5rdW9wcGFsYUBpbnRlbC5jb20+ClRlc3RlZC1ieTogRGF2aWQgV2Vp bmVoYWxsIDxkYXZpZC53ZWluZWhhbGxAbGludXguaW50ZWwuY29tPiAjdjEKUmV2aWV3ZWQtYnk6 IE1pa2EgS3VvcHBhbGEgPG1pa2Eua3VvcHBhbGFAaW50ZWwuY29tPgotLS0KIGRyaXZlcnMvZ3B1 L2RybS9pOTE1L2k5MTVfZ2VtLmMgICAgIHwgMjcgKysrKysrKysrKysrKysrKysrKysrKysrKy0t CiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3JlcXVlc3QuaCB8ICAxICsKIDIgZmlsZXMgY2hh bmdlZCwgMjYgaW5zZXJ0aW9ucygrKSwgMiBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9n ZW0uYwppbmRleCA5ZWI5M2NhMDYzMDkuLjc3M2E1OTEwY2MyOSAxMDA2NDQKLS0tIGEvZHJpdmVy cy9ncHUvZHJtL2k5MTUvaTkxNV9nZW0uYworKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1 X2dlbS5jCkBAIC0zNzAzLDcgKzM3MDMsMjkgQEAgaTkxNV9nZW1fd2FpdF9pb2N0bChzdHJ1Y3Qg ZHJtX2RldmljZSAqZGV2LCB2b2lkICpkYXRhLCBzdHJ1Y3QgZHJtX2ZpbGUgKmZpbGUpCiAKIHN0 YXRpYyBpbnQgd2FpdF9mb3JfdGltZWxpbmUoc3RydWN0IGk5MTVfdGltZWxpbmUgKnRsLCB1bnNp Z25lZCBpbnQgZmxhZ3MpCiB7Ci0JcmV0dXJuIGk5MTVfZ2VtX2FjdGl2ZV93YWl0KCZ0bC0+bGFz dF9yZXF1ZXN0LCBmbGFncyk7CisJc3RydWN0IGk5MTVfcmVxdWVzdCAqcnE7CisJbG9uZyByZXQ7 CisKKwlycSA9IGk5MTVfZ2VtX2FjdGl2ZV9nZXRfdW5sb2NrZWQoJnRsLT5sYXN0X3JlcXVlc3Qp OworCWlmICghcnEpCisJCXJldHVybiAwOworCisJLyoKKwkgKiAiUmFjZS10by1pZGxlIi4KKwkg KgorCSAqIFN3aXRjaGluZyB0byB0aGUga2VybmVsIGNvbnRleHQgaXMgb2Z0ZW4gdXNlZCBhIHN5 bmNocm9ub3VzCisJICogc3RlcCBwcmlvciB0byBpZGxpbmcsIGUuZy4gaW4gc3VzcGVuZCBmb3Ig Zmx1c2hpbmcgYWxsCisJICogY3VycmVudCBvcGVyYXRpb25zIHRvIG1lbW9yeSBiZWZvcmUgc2xl ZXBpbmcuIFRoZXNlIHdlCisJICogd2FudCB0byBjb21wbGV0ZSBhcyBxdWlja2x5IGFzIHBvc3Np YmxlIHRvIGF2b2lkIHByb2xvbmdlZAorCSAqIHN0YWxscywgc28gYWxsb3cgdGhlIGdwdSB0byBi b29zdCB0byBtYXhpbXVtIGNsb2Nrcy4KKwkgKi8KKwlpZiAoZmxhZ3MgJiBJOTE1X1dBSVRfRk9S X0lETEVfQk9PU1QpCisJCWdlbjZfcnBzX2Jvb3N0KHJxLCBOVUxMKTsKKworCXJldCA9IGk5MTVf cmVxdWVzdF93YWl0KHJxLCBmbGFncywgTUFYX1NDSEVEVUxFX1RJTUVPVVQpOworCWk5MTVfcmVx dWVzdF9wdXQocnEpOworCisJcmV0dXJuIHJldCA8IDAgPyByZXQgOiAwOwogfQogCiBzdGF0aWMg aW50IHdhaXRfZm9yX2VuZ2luZXMoc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmk5MTUpCkBAIC00 OTc4LDcgKzUwMDAsOCBAQCBpbnQgaTkxNV9nZW1fc3VzcGVuZChzdHJ1Y3QgZHJtX2k5MTVfcHJp dmF0ZSAqZGV2X3ByaXYpCiAKIAkJcmV0ID0gaTkxNV9nZW1fd2FpdF9mb3JfaWRsZShkZXZfcHJp diwKIAkJCQkJICAgICBJOTE1X1dBSVRfSU5URVJSVVBUSUJMRSB8Ci0JCQkJCSAgICAgSTkxNV9X QUlUX0xPQ0tFRCk7CisJCQkJCSAgICAgSTkxNV9XQUlUX0xPQ0tFRCB8CisJCQkJCSAgICAgSTkx NV9XQUlUX0ZPUl9JRExFX0JPT1NUKTsKIAkJaWYgKHJldCAmJiByZXQgIT0gLUVJTykKIAkJCWdv dG8gZXJyX3VubG9jazsKIApkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9y ZXF1ZXN0LmggYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3JlcXVlc3QuaAppbmRleCAxYmJi YjdhOWZhMDMuLjQ5MWZmODFkMGZlYSAxMDA2NDQKLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUv aTkxNV9yZXF1ZXN0LmgKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9yZXF1ZXN0LmgK QEAgLTI2Nyw2ICsyNjcsNyBAQCBsb25nIGk5MTVfcmVxdWVzdF93YWl0KHN0cnVjdCBpOTE1X3Jl cXVlc3QgKnJxLAogI2RlZmluZSBJOTE1X1dBSVRfSU5URVJSVVBUSUJMRQlCSVQoMCkKICNkZWZp bmUgSTkxNV9XQUlUX0xPQ0tFRAlCSVQoMSkgLyogc3RydWN0X211dGV4IGhlbGQsIGhhbmRsZSBH UFUgcmVzZXQgKi8KICNkZWZpbmUgSTkxNV9XQUlUX0FMTAkJQklUKDIpIC8qIHVzZWQgYnkgaTkx NV9nZW1fb2JqZWN0X3dhaXQoKSAqLworI2RlZmluZSBJOTE1X1dBSVRfRk9SX0lETEVfQk9PU1Qg QklUKDMpCiAKIHN0YXRpYyBpbmxpbmUgdTMyIGludGVsX2VuZ2luZV9nZXRfc2Vxbm8oc3RydWN0 IGludGVsX2VuZ2luZV9jcyAqZW5naW5lKTsKIAotLSAKMi4xNy4wCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0Cklu dGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5v cmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK