From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Chris Wilson Date: Tue, 9 Apr 2019 14:56:09 +0100 Message-Id: <20190409135609.18802-1-chris@chris-wilson.co.uk> MIME-Version: 1.0 Subject: [igt-dev] [PATCH i-g-t] i915/gem_exec_schedule: Trick semaphores into a GPU hang List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" To: intel-gfx@lists.freedesktop.org Cc: igt-dev@lists.freedesktop.org, Tvrtko Ursulin List-ID: SWYgd2UgaGF2ZSB0d28gdGFza3MgcnVubmluZyBvbiB4Y3MwIGFuZCB4Y3MxIGluZGVwZW5kZW50 bHksIGJ1dCB3aG8KcXVldWUgc3Vic2VxdWVudCB3b3JrIG9udG8gcmNzLCB3ZSBtYXkgaW5zZXJ0 IHNlbWFwaG9yZXMgYmVmb3JlIHRoZSByY3MKd29yayBhbmQgcGljayB1bndpc2VseSB3aGljaCB0 YXNrIHRvIHJ1biBmaXJzdC4gVG8gbWF4aW1pc2UgdGhyb3VnaHB1dCwKd2Ugd2FudCB0byBydW4g b24gcmNzIHdoaWNoZXZlciB0YXNrIGlzIHJlYWR5IGZpcnN0LiBDb252ZXJzZWx5LCBpZiB3ZQpw aWNrIHdyb25nbHkgdGhhdCBjYW4gYmUgdXNlZCB0byB0cmlnZ2VyIGEgR1BVIGhhbmcgd2l0aCB1 bmF3YXJlCnVzZXJzcGFjZS4KClNpZ25lZC1vZmYtYnk6IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hy aXMtd2lsc29uLmNvLnVrPgpDYzogVHZydGtvIFVyc3VsaW4gPHR2cnRrby51cnN1bGluQGludGVs LmNvbT4KLS0tCiB0ZXN0cy9pOTE1L2dlbV9leGVjX3NjaGVkdWxlLmMgfCA2MSArKysrKysrKysr KysrKysrKysrKysrKysrKysrKysrKysrCiAxIGZpbGUgY2hhbmdlZCwgNjEgaW5zZXJ0aW9ucygr KQoKZGlmZiAtLWdpdCBhL3Rlc3RzL2k5MTUvZ2VtX2V4ZWNfc2NoZWR1bGUuYyBiL3Rlc3RzL2k5 MTUvZ2VtX2V4ZWNfc2NoZWR1bGUuYwppbmRleCAzZGYzMTliY2MuLmQ2ZjEwOTU0MCAxMDA2NDQK LS0tIGEvdGVzdHMvaTkxNS9nZW1fZXhlY19zY2hlZHVsZS5jCisrKyBiL3Rlc3RzL2k5MTUvZ2Vt X2V4ZWNfc2NoZWR1bGUuYwpAQCAtNDA0LDYgKzQwNCw2NSBAQCBzdGF0aWMgdm9pZCBzZW1hcGhv cmVfdXNlcmxvY2soaW50IGk5MTUpCiAJaWd0X3NwaW5fYmF0Y2hfZnJlZShpOTE1LCBzcGluKTsK IH0KIAorc3RhdGljIHZvaWQgc2VtYXBob3JlX2NvZGVwZW5kZW5jeShpbnQgaTkxNSkKK3sKKwlz dHJ1Y3QgeworCQlpZ3Rfc3Bpbl90ICp4Y3MsICpyY3M7CisJfSB0YXNrWzJdOworCXVuc2lnbmVk IGludCBlbmdpbmU7CisJaW50IGk7CisKKwkvKgorCSAqIENvbnNpZGVyIHR3byB0YXNrcywgdGFz ayBBIHJ1bnMgb24gKHhjczAsIHJjczApIGFuZCB0YXNrIEIKKwkgKiBvbiAoeGNzMSwgcmNzMCku IFRoYXQgaXMgdGhleSBtdXN0IGJvdGggcnVuIGEgZGVwZW5kZW50CisJICogYmF0Y2ggb24gcmNz MCwgYWZ0ZXIgZmlyc3QgcnVubmluZyBpbiBwYXJhbGxlbCBvbiBzZXBhcmF0ZQorCSAqIGVuZ2lu ZXMuIFRvIG1heGltaXNlIHRocm91Z2hwdXQsIHdlIHdhbnQgdGhlIHNob3J0ZXIgeGNzIHRhc2sK KwkgKiB0byBzdGFydCBvbiByY3MgZmlyc3QuIEhvd2V2ZXIsIGlmIHdlIGluc2VydCBzZW1hcGhv cmVzIHdlIG1heQorCSAqIHBpY2sgd3JvbmdseSBhbmQgZW5kIHVwIHJ1bm5pbmcgdGhlIHJlcXVl c3RzIGluIHRoZSBsZWFzdAorCSAqIG9wdGltYWwgb3JkZXIuCisJICovCisKKwlpID0gMDsKKwlm b3JfZWFjaF9waHlzaWNhbF9lbmdpbmUoaTkxNSwgZW5naW5lKSB7CisJCXVpbnQzMl90IGN0eDsK KworCQlpZiAoZW5naW5lID09IEk5MTVfRVhFQ19SRU5ERVIpCisJCQljb250aW51ZTsKKworCQlj dHggPSBnZW1fY29udGV4dF9jcmVhdGUoaTkxNSk7CisKKwkJdGFza1tpXS54Y3MgPQorCQkJX19p Z3Rfc3Bpbl9iYXRjaF9uZXcoaTkxNSwKKwkJCQkJICAgICAuY3R4ID0gY3R4LAorCQkJCQkgICAg IC5lbmdpbmUgPSBlbmdpbmUsCisJCQkJCSAgICAgLmZsYWdzID0gSUdUX1NQSU5fUE9MTF9SVU4p OworCQlpZ3Rfc3Bpbl9idXN5d2FpdF91bnRpbF9ydW5uaW5nKHRhc2tbaV0ueGNzKTsKKworCQkv KiBDb21tb24gcmNzIHRhc2tzIHdpbGwgYmUgcXVldWVkIGluIEZJRk8gKi8KKwkJdGFza1tpXS5y Y3MgPQorCQkJX19pZ3Rfc3Bpbl9iYXRjaF9uZXcoaTkxNSwKKwkJCQkJICAgICAuY3R4ID0gY3R4 LAorCQkJCQkgICAgIC5lbmdpbmUgPSBJOTE1X0VYRUNfUkVOREVSLAorCQkJCQkgICAgIC5kZXBl bmRlbmN5ID0gdGFza1tpXS54Y3MtPmhhbmRsZSk7CisKKwkJZ2VtX2NvbnRleHRfZGVzdHJveShp OTE1LCBjdHgpOworCisJCWlmICgrK2kgPT0gQVJSQVlfU0laRSh0YXNrKSkKKwkJCWJyZWFrOwor CX0KKwlpZ3RfcmVxdWlyZShpID09IEFSUkFZX1NJWkUodGFzaykpOworCisJLyogU2luY2UgdGFz a1swXSB3YXMgcXVldWVkIGZpcnN0LCBpdCB3aWxsIGJlIGZpcnN0IGluIHF1ZXVlIGZvciByY3Mg Ki8KKwlpZ3Rfc3Bpbl9iYXRjaF9lbmQodGFza1sxXS54Y3MpOworCWlndF9zcGluX2JhdGNoX2Vu ZCh0YXNrWzFdLnJjcyk7CisJZ2VtX3N5bmMoaTkxNSwgdGFza1sxXS5yY3MtPmhhbmRsZSk7IC8q IHRvIGhhbmcgaWYgdGFza1swXSBob2dzIHJjcyAqLworCisJZm9yIChpID0gMDsgaSA8IEFSUkFZ X1NJWkUodGFzayk7IGkrKykgeworCQlpZ3Rfc3Bpbl9iYXRjaF9mcmVlKGk5MTUsIHRhc2tbaV0u eGNzKTsKKwkJaWd0X3NwaW5fYmF0Y2hfZnJlZShpOTE1LCB0YXNrW2ldLnJjcyk7CisJfQorfQor CiBzdGF0aWMgdm9pZCByZW9yZGVyKGludCBmZCwgdW5zaWduZWQgcmluZywgdW5zaWduZWQgZmxh Z3MpCiAjZGVmaW5lIEVRVUFMIDEKIHsKQEAgLTEzOTMsNiArMTQ1Miw4IEBAIGlndF9tYWluCiAK IAkJaWd0X3N1YnRlc3QoInNlbWFwaG9yZS11c2VyIikKIAkJCXNlbWFwaG9yZV91c2VybG9jayhm ZCk7CisJCWlndF9zdWJ0ZXN0KCJzZW1hcGhvcmUtY29kZXBlbmRlbmN5IikKKwkJCXNlbWFwaG9y ZV9jb2RlcGVuZGVuY3koZmQpOwogCiAJCWlndF9zdWJ0ZXN0KCJzbW9rZXRlc3QtYWxsIikKIAkJ CXNtb2tldGVzdChmZCwgQUxMX0VOR0lORVMsIDMwKTsKLS0gCjIuMjAuMQoKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KaWd0LWRldiBtYWlsaW5nIGxpc3QK aWd0LWRldkBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5v cmcvbWFpbG1hbi9saXN0aW5mby9pZ3QtZGV2