From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?UTF-8?Q?Christian_K=c3=b6nig?= Subject: Re: [PATCH] drm/amdgpu: Fix the dead lock issue. Date: Mon, 10 Sep 2018 09:06:22 +0200 Message-ID: References: <1536552453-18595-1-git-send-email-Emily.Deng@amd.com> Reply-To: christian.koenig-5C7GfCeVMHo@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1536552453-18595-1-git-send-email-Emily.Deng-5C7GfCeVMHo@public.gmane.org> Content-Language: en-US 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: Emily Deng , amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org QW0gMTAuMDkuMjAxOCB1bSAwNjowNyBzY2hyaWViIEVtaWx5IERlbmc6Cj4gSXQgd2lsbCByYW1k b21seSBoYXZlIHRoZSBkZWFkIGxvY2sgaXNzdWUgd2hlbiB0ZXN0IFREUjoKPiAxLiBhbWRncHVf ZGV2aWNlX2hhbmRsZV92cmFtX2xvc3QgZ2V0cyB0aGUgbG9jayBzaGFkb3dfbGlzdF9sb2NrCj4g Mi4gYW1kZ3B1X2JvX2NyZWF0ZSBsb2NrZWQgdGhlIGJvJ3MgcmVzdiBsb2NrCj4gMy4gYW1kZ3B1 X2JvX2NyZWF0ZV9zaGFkb3cgaXMgd2FpdGluZyBmb3IgdGhlIHNoYWRvd19saXN0X2xvY2sKPiA0 LiBhbWRncHVfZGV2aWNlX3JlY292ZXJfdnJhbV9mcm9tX3NoYWRvdyBpcyB3YWl0aW5nIGZvciB0 aGUgYm8ncyByZXN2Cj4gbG9jay4KPgo+IFNpZ25lZC1vZmYtYnk6IEVtaWx5IERlbmcgPEVtaWx5 LkRlbmdAYW1kLmNvbT4KCkdvb2QgY2F0Y2gsIHByb2JsZW0gaXMgdGhlIGZpeCBkb2Vzbid0IHdv cmsgbGlrZSB0aGlzIGJlY2F1c2UgdGhlIGxvY2sgCndvbid0IGJlIGRyb3BwZWQgYXQgdGhpcyBw b2ludCBpbiBtb3N0IGNhc2VzLgoKSW5zdGVhZCB5b3UgbmVlZCB0byBmaXggYW1kZ3B1X2Rldmlj ZV9yZWNvdmVyX3ZyYW1fZnJvbV9zaGFkb3cgdG8gbWFrZSBhIApsb2NhbCBjb3B5IG9mIHRoZSBs aXN0LgoKWW91IGNhbiBkbyB0aGlzIGJ5IGdyYWJiaW5nIGEgcmVmZXJlbmNlIHRvIGVhY2ggQk8g YW5kIG1vdmluZyBpdCB0byBhIApsb2NhbCBsaXN0LgoKUmVnYXJkcywKQ2hyaXN0aWFuLgoKPiAt LS0KPiAgIGRyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9vYmplY3QuYyB8IDEyICsr KysrKystLS0tLQo+ICAgMSBmaWxlIGNoYW5nZWQsIDcgaW5zZXJ0aW9ucygrKSwgNSBkZWxldGlv bnMoLSkKPgo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVf b2JqZWN0LmMgYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfb2JqZWN0LmMKPiBp bmRleCBkZTk5MGJkLi5jNzU0NDdkIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9hbWQv YW1kZ3B1L2FtZGdwdV9vYmplY3QuYwo+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1 L2FtZGdwdV9vYmplY3QuYwo+IEBAIC01NTcsMTIgKzU1Nyw4IEBAIHN0YXRpYyBpbnQgYW1kZ3B1 X2JvX2NyZWF0ZV9zaGFkb3coc3RydWN0IGFtZGdwdV9kZXZpY2UgKmFkZXYsCj4gICAJYnAucmVz diA9IGJvLT50Ym8ucmVzdjsKPiAgIAo+ICAgCXIgPSBhbWRncHVfYm9fZG9fY3JlYXRlKGFkZXYs ICZicCwgJmJvLT5zaGFkb3cpOwo+IC0JaWYgKCFyKSB7Cj4gKwlpZiAoIXIpCj4gICAJCWJvLT5z aGFkb3ctPnBhcmVudCA9IGFtZGdwdV9ib19yZWYoYm8pOwo+IC0JCW11dGV4X2xvY2soJmFkZXYt PnNoYWRvd19saXN0X2xvY2spOwo+IC0JCWxpc3RfYWRkX3RhaWwoJmJvLT5zaGFkb3dfbGlzdCwg JmFkZXYtPnNoYWRvd19saXN0KTsKPiAtCQltdXRleF91bmxvY2soJmFkZXYtPnNoYWRvd19saXN0 X2xvY2spOwo+IC0JfQo+ICAgCj4gICAJcmV0dXJuIHI7Cj4gICB9Cj4gQEAgLTYwMyw2ICs1OTks MTIgQEAgaW50IGFtZGdwdV9ib19jcmVhdGUoc3RydWN0IGFtZGdwdV9kZXZpY2UgKmFkZXYsCj4g ICAJCWlmICghYnAtPnJlc3YpCj4gICAJCQlyZXNlcnZhdGlvbl9vYmplY3RfdW5sb2NrKCgqYm9f cHRyKS0+dGJvLnJlc3YpOwo+ICAgCj4gKwkJaWYgKCFyKSB7Cj4gKwkJCW11dGV4X2xvY2soJmFk ZXYtPnNoYWRvd19saXN0X2xvY2spOwo+ICsJCQlsaXN0X2FkZF90YWlsKCYoKmJvX3B0ciktPnNo YWRvd19saXN0LCAmYWRldi0+c2hhZG93X2xpc3QpOwo+ICsJCQltdXRleF91bmxvY2soJmFkZXYt PnNoYWRvd19saXN0X2xvY2spOwo+ICsJCX0KPiArCj4gICAJCWlmIChyKQo+ICAgCQkJYW1kZ3B1 X2JvX3VucmVmKGJvX3B0cik7Cj4gICAJfQoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX18KYW1kLWdmeCBtYWlsaW5nIGxpc3QKYW1kLWdmeEBsaXN0cy5mcmVl ZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5m by9hbWQtZ2Z4Cg==