From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alex Deucher Subject: [PATCH] drm/amdgpu: fix a race in GPU reset with IB test Date: Tue, 28 May 2019 14:29:55 -0500 Message-ID: <20190528192955.599-1-alexander.deucher@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: amd-gfx-bounces-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Sender: "amd-gfx" To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org Cc: Alex Deucher U3BsaXQgbGF0ZV9pbml0IGludG8gdHdvIGZ1bmN0aW9ucywgb25lIChkb19sYXRlX2luaXQpIHdo aWNoCmp1c3QgZG9lcyB0aGUgaHcgaW5pdCwgYW5kIGxhdGVfaW5pdCB3aGljaCBjYWxscyBkb19s YXRlX2luaXQKYW5kIHNjaGVkdWxlcyB0aGUgSUIgdGVzdCB3b3JrLiAgQ2FsbCBkb19sYXRlX2lu aXQgaW4KdGhlIEdQVSByZXNldCBjb2RlIHRvIHJ1biB0aGUgaW5pdCBjb2RlLCBidXQgbm90IHNj aGVkdWxlCnRoZSBJQiB0ZXN0IGNvZGUuICBUaGUgSUIgdGVzdCBjb2RlIGlzIGNhbGxlZCBkaXJl Y3RseQppbiB0aGUgZ3B1IHJlc2V0IGNvZGUgc28gbm8gbmVlZCB0byBydW4gdGhlIElCIHRlc3Rz CmluIGEgc2VwYXJhdGUgd29yayB0aHJlYWQuICBJZiB3ZSBkbywgd2UgZW5kIHVwIHJhY2luZy4K ClNpZ25lZC1vZmYtYnk6IEFsZXggRGV1Y2hlciA8YWxleGFuZGVyLmRldWNoZXJAYW1kLmNvbT4K LS0tCiBkcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfZGV2aWNlLmMgfCA0MyArKysr KysrKysrKysrLS0tLS0tLS0tCiAxIGZpbGUgY2hhbmdlZCwgMjYgaW5zZXJ0aW9ucygrKSwgMTcg ZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1k Z3B1X2RldmljZS5jIGIvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2RldmljZS5j CmluZGV4IDdhOGMyMjAxY2QwNC4uNmI5MDg0MDMwN2RjIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dw dS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfZGV2aWNlLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2Ft ZC9hbWRncHUvYW1kZ3B1X2RldmljZS5jCkBAIC0xODY5LDE5ICsxODY5LDcgQEAgc3RhdGljIGlu dCBhbWRncHVfZGV2aWNlX3NldF9wZ19zdGF0ZShzdHJ1Y3QgYW1kZ3B1X2RldmljZSAqYWRldiwg ZW51bSBhbWRfcG93ZXIKIAlyZXR1cm4gMDsKIH0KIAotLyoqCi0gKiBhbWRncHVfZGV2aWNlX2lw X2xhdGVfaW5pdCAtIHJ1biBsYXRlIGluaXQgZm9yIGhhcmR3YXJlIElQcwotICoKLSAqIEBhZGV2 OiBhbWRncHVfZGV2aWNlIHBvaW50ZXIKLSAqCi0gKiBMYXRlIGluaXRpYWxpemF0aW9uIHBhc3Mg Zm9yIGhhcmR3YXJlIElQcy4gIFRoZSBsaXN0IG9mIGFsbCB0aGUgaGFyZHdhcmUKLSAqIElQcyB0 aGF0IG1ha2UgdXAgdGhlIGFzaWMgaXMgd2Fsa2VkIGFuZCB0aGUgbGF0ZV9pbml0IGNhbGxiYWNr cyBhcmUgcnVuLgotICogbGF0ZV9pbml0IGNvdmVycyBhbnkgc3BlY2lhbCBpbml0aWFsaXphdGlv biB0aGF0IGFuIElQIHJlcXVpcmVzCi0gKiBhZnRlciBhbGwgb2YgdGhlIGhhdmUgYmVlbiBpbml0 aWFsaXplZCBvciBzb21ldGhpbmcgdGhhdCBuZWVkcyB0byBoYXBwZW4KLSAqIGxhdGUgaW4gdGhl IGluaXQgcHJvY2Vzcy4KLSAqIFJldHVybnMgMCBvbiBzdWNjZXNzLCBuZWdhdGl2ZSBlcnJvciBj b2RlIG9uIGZhaWx1cmUuCi0gKi8KLXN0YXRpYyBpbnQgYW1kZ3B1X2RldmljZV9pcF9sYXRlX2lu aXQoc3RydWN0IGFtZGdwdV9kZXZpY2UgKmFkZXYpCitzdGF0aWMgaW50IGFtZGdwdV9kZXZpY2Vf ZG9faXBfbGF0ZV9pbml0KHN0cnVjdCBhbWRncHVfZGV2aWNlICphZGV2KQogewogCWludCBpID0g MCwgcjsKIApAQCAtMTkwMiwxNCArMTg5MCwzNSBAQCBzdGF0aWMgaW50IGFtZGdwdV9kZXZpY2Vf aXBfbGF0ZV9pbml0KHN0cnVjdCBhbWRncHVfZGV2aWNlICphZGV2KQogCWFtZGdwdV9kZXZpY2Vf c2V0X2NnX3N0YXRlKGFkZXYsIEFNRF9DR19TVEFURV9HQVRFKTsKIAlhbWRncHVfZGV2aWNlX3Nl dF9wZ19zdGF0ZShhZGV2LCBBTURfUEdfU1RBVEVfR0FURSk7CiAKLQlxdWV1ZV9kZWxheWVkX3dv cmsoc3lzdGVtX3dxLCAmYWRldi0+bGF0ZV9pbml0X3dvcmssCi0JCQkgICBtc2Vjc190b19qaWZm aWVzKEFNREdQVV9SRVNVTUVfTVMpKTsKLQogCWFtZGdwdV9kZXZpY2VfZmlsbF9yZXNldF9tYWdp YyhhZGV2KTsKIAogCXJldHVybiAwOwogfQogCisvKioKKyAqIGFtZGdwdV9kZXZpY2VfaXBfbGF0 ZV9pbml0IC0gcnVuIGxhdGUgaW5pdCBmb3IgaGFyZHdhcmUgSVBzCisgKgorICogQGFkZXY6IGFt ZGdwdV9kZXZpY2UgcG9pbnRlcgorICoKKyAqIExhdGUgaW5pdGlhbGl6YXRpb24gcGFzcyBmb3Ig aGFyZHdhcmUgSVBzLiAgVGhlIGxpc3Qgb2YgYWxsIHRoZSBoYXJkd2FyZQorICogSVBzIHRoYXQg bWFrZSB1cCB0aGUgYXNpYyBpcyB3YWxrZWQgYW5kIHRoZSBsYXRlX2luaXQgY2FsbGJhY2tzIGFy ZSBydW4uCisgKiBsYXRlX2luaXQgY292ZXJzIGFueSBzcGVjaWFsIGluaXRpYWxpemF0aW9uIHRo YXQgYW4gSVAgcmVxdWlyZXMKKyAqIGFmdGVyIGFsbCBvZiB0aGUgaGF2ZSBiZWVuIGluaXRpYWxp emVkIG9yIHNvbWV0aGluZyB0aGF0IG5lZWRzIHRvIGhhcHBlbgorICogbGF0ZSBpbiB0aGUgaW5p dCBwcm9jZXNzLgorICogUmV0dXJucyAwIG9uIHN1Y2Nlc3MsIG5lZ2F0aXZlIGVycm9yIGNvZGUg b24gZmFpbHVyZS4KKyAqLworc3RhdGljIGludCBhbWRncHVfZGV2aWNlX2lwX2xhdGVfaW5pdChz dHJ1Y3QgYW1kZ3B1X2RldmljZSAqYWRldikKK3sKKwlpbnQgcjsKKworCXIgPSBhbWRncHVfZGV2 aWNlX2RvX2lwX2xhdGVfaW5pdChhZGV2KTsKKworCXF1ZXVlX2RlbGF5ZWRfd29yayhzeXN0ZW1f d3EsICZhZGV2LT5sYXRlX2luaXRfd29yaywKKwkJCSAgIG1zZWNzX3RvX2ppZmZpZXMoQU1ER1BV X1JFU1VNRV9NUykpOworCisJcmV0dXJuIHI7Cit9CisKIC8qKgogICogYW1kZ3B1X2RldmljZV9p cF9maW5pIC0gcnVuIGZpbmkgZm9yIGhhcmR3YXJlIElQcwogICoKQEAgLTM1MDIsNyArMzUxMSw3 IEBAIHN0YXRpYyBpbnQgYW1kZ3B1X2RvX2FzaWNfcmVzZXQoc3RydWN0IGFtZGdwdV9oaXZlX2lu Zm8gKmhpdmUsCiAJCQkJaWYgKHZyYW1fbG9zdCkKIAkJCQkJYW1kZ3B1X2RldmljZV9maWxsX3Jl c2V0X21hZ2ljKHRtcF9hZGV2KTsKIAotCQkJCXIgPSBhbWRncHVfZGV2aWNlX2lwX2xhdGVfaW5p dCh0bXBfYWRldik7CisJCQkJciA9IGFtZGdwdV9kZXZpY2VfZG9faXBfbGF0ZV9pbml0KHRtcF9h ZGV2KTsKIAkJCQlpZiAocikKIAkJCQkJZ290byBvdXQ7CiAKLS0gCjIuMjAuMQoKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KYW1kLWdmeCBtYWlsaW5nIGxp c3QKYW1kLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3Rv cC5vcmcvbWFpbG1hbi9saXN0aW5mby9hbWQtZ2Z4