From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Antoine Subject: [PATCH v3] drm/i915: Avoid GPU Hang when comming out of s3 or s4 Date: Mon, 11 May 2015 08:50:45 +0100 Message-ID: <1431330645-26704-1-git-send-email-peter.antoine@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id 2AE6B89EB7 for ; Mon, 11 May 2015 00:51:00 -0700 (PDT) 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: daniel.vetter@ffwll.ch, david.weinehall@intel.com, yex.tian@intel.com, deepak.s@intel.com List-Id: intel-gfx@lists.freedesktop.org VGhpcyBwYXRjaCBmaXhlcyBhIHRpbWluZyBpc3N1ZSB0aGF0IGNhdXNlcyBhIEdQVSBoYW5nIHdo ZW4gdGhlIHN5c3RlbQpjb21lcyBvdXQgb2YgcG93ZXIgc2F2aW5nLgoKRHVyaW5nIHBtX3Jlc3Vt ZSwgV2UgYXJlIHN1Ym1pdHRpbmcgYmF0Y2hidWZmZXJzIGJlZm9yZSBlbmFibGluZwpJbnRlcnJ1 cHRzIHRoaXMgaXMgY2F1c2luZyB1cyB0byBtaXNzIHRoZSBjb250ZXh0IHN3aXRjaCBpbnRlcnJ1 cHQsCmFuZCBpbiBjb25zZXF1ZW5jZSBpbnRlbF9leGVjbGlzdHNfaGFuZGxlX2N0eF9ldmVudHMg aXMgbm90IHRyaWdnZXJlZC4KClRoaXMgcGF0Y2ggaXMgYmFzZWQgb24gYSBwYXRjaCBmcm9tIERl ZXBhayBTIDxkZWVwYWsuc0BpbnRlbC5jb20+CmZyb20gYW5vdGhlciBwbGF0Zm9ybS4KClRoZSBw YXRjaCBmaXhlcyBhbiBpc3N1ZSBpbnRyb2R1Y2VkIGJ5OgogIGNvbW1pdCBlNzc3OGJlMWVhYjkx ODI3NGY3OTYwM2Q3YzE3YjNlYzhiZTc3Mzg2CiAgZHJtL2k5MTU6IEZpeCBzdGFydHVwIGZhaWx1 cmUgaW4gTFJDIG1vZGUgYWZ0ZXIgcmVjZW50IGluaXQgY2hhbmdlcwoKVGhlIGFib3ZlIHBhdGNo IGFkZGVkIGEgY2FsbCB0byBpbml0X2NvbnRleHQoKSB0byBmaXggYW4gaXNzdWUgaW50cm9kdWNl ZApieSBhIHByZXZpb3VzIHBhdGNoLiBCdXQsIGl0IHRoZW4gb3BlbmVkIHVwIGEgc21hbGwgdGlt aW5nIHdpbmRvdyBmb3IgdGhlCmJhdGNoZXMgYmVpbmcgYWRkZWQgYnkgdGhlIGluaXRfY29udGV4 dCAoYmFzaWNhbGx5IHNldHRpbmcgdXAgdGhlIGNvbnRleHQpCnRvIGNvbXBsZXRlIGJlZm9yZSB0 aGUgaW50ZXJydXB0cyBoYXZlIGJlZW4gdHVybmVkIG9uLCB0aHVzIGhhbmdpbmcgdGhlCkdQVS4K CkJVRzogaHR0cHM6Ly9idWdzLmZyZWVkZXNrdG9wLm9yZy9zaG93X2J1Zy5jZ2k/aWQ9ODk2MDAK U2lnbmVkLW9mZi1ieTogUGV0ZXIgQW50b2luZSA8cGV0ZXIuYW50b2luZUBpbnRlbC5jb20+Ci0t LQogZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuYyB8IDEwICsrKysrKystLS0KIDEgZmls ZSBjaGFuZ2VkLCA3IGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5 MTVfZHJ2LmMKaW5kZXggNmJiNmM0Ny4uOTBiMTMwOSAxMDA2NDQKLS0tIGEvZHJpdmVycy9ncHUv ZHJtL2k5MTUvaTkxNV9kcnYuYworKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5j CkBAIC03MzQsNiArNzM0LDEyIEBAIHN0YXRpYyBpbnQgaTkxNV9kcm1fcmVzdW1lKHN0cnVjdCBk cm1fZGV2aWNlICpkZXYpCiAJaW50ZWxfaW5pdF9wY2hfcmVmY2xrKGRldik7CiAJZHJtX21vZGVf Y29uZmlnX3Jlc2V0KGRldik7CiAKKwkvKiBJbnRlcnJ1cHRzIGhhdmUgdG8gZW5hYmxlZCBzbyB0 aGF0IGFueSBiYXRjaGVzIHRoYXQgYXJlIGNvbXBsZXRlZAorCSAqIHdoZW4gdGhlIGNvbnRleHQg aXMgcmVzdGFydGVkIGFyZSBjYXVnaHQgc28gdGhhdCB0aGUgcmluZyBidWZmZXIKKwkgKiBkb2Vz IG5vdCBoYW5kbGUuCisJICovCisJaW50ZWxfcnVudGltZV9wbV9lbmFibGVfaW50ZXJydXB0cyhk ZXZfcHJpdik7CisKIAltdXRleF9sb2NrKCZkZXYtPnN0cnVjdF9tdXRleCk7CiAJaWYgKGk5MTVf Z2VtX2luaXRfaHcoZGV2KSkgewogCQlEUk1fRVJST1IoImZhaWxlZCB0byByZS1pbml0aWFsaXpl IEdQVSwgZGVjbGFyaW5nIHdlZGdlZCFcbiIpOwpAQCAtNzQxLDkgKzc0Nyw3IEBAIHN0YXRpYyBp bnQgaTkxNV9kcm1fcmVzdW1lKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYpCiAJfQogCW11dGV4X3Vu bG9jaygmZGV2LT5zdHJ1Y3RfbXV0ZXgpOwogCi0JLyogV2UgbmVlZCB3b3JraW5nIGludGVycnVw dHMgZm9yIG1vZGVzZXQgZW5hYmxpbmcgLi4uICovCi0JaW50ZWxfcnVudGltZV9wbV9lbmFibGVf aW50ZXJydXB0cyhkZXZfcHJpdik7Ci0KKwkvKiBUaGlzIG11c3QgZm9sbG93IHRoZSBwbSBlbmFi bGUgaW50ZXJydXB0cyAqLwogCWludGVsX21vZGVzZXRfaW5pdF9odyhkZXYpOwogCiAJc3Bpbl9s b2NrX2lycSgmZGV2X3ByaXYtPmlycV9sb2NrKTsKLS0gCjEuOS4xCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0Cklu dGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9y Zy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=