From mboxrd@z Thu Jan 1 00:00:00 1970 From: zhoucm1 Subject: Re: [PATCH] drm/amdgpu: Fix the dead lock issue. Date: Tue, 11 Sep 2018 11:03:05 +0800 Message-ID: References: <1536634293-26099-1-git-send-email-Emily.Deng@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1536634293-26099-1-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 CgpPbiAyMDE45bm0MDnmnIgxMeaXpSAxMDo1MSwgRW1pbHkgRGVuZyB3cm90ZToKPiBJdCB3aWxs IHJhbWRvbWx5IGhhdmUgdGhlIGRlYWQgbG9jayBpc3N1ZSB3aGVuIHRlc3QgVERSOgo+IDEuIGFt ZGdwdV9kZXZpY2VfaGFuZGxlX3ZyYW1fbG9zdCBnZXRzIHRoZSBsb2NrIHNoYWRvd19saXN0X2xv Y2sKPiAyLiBhbWRncHVfYm9fY3JlYXRlIGxvY2tlZCB0aGUgYm8ncyByZXN2IGxvY2sKPiAzLiBh bWRncHVfYm9fY3JlYXRlX3NoYWRvdyBpcyB3YWl0aW5nIGZvciB0aGUgc2hhZG93X2xpc3RfbG9j awo+IDQuIGFtZGdwdV9kZXZpY2VfcmVjb3Zlcl92cmFtX2Zyb21fc2hhZG93IGlzIHdhaXRpbmcg Zm9yIHRoZSBibydzIHJlc3YKPiBsb2NrLgo+Cj4gdjI6Cj4gICAgIE1ha2UgYSBsb2NhbCBjb3B5 IG9mIHRoZSBsaXN0Cj4KPiBTaWduZWQtb2ZmLWJ5OiBFbWlseSBEZW5nIDxFbWlseS5EZW5nQGFt ZC5jb20+Cj4gLS0tCj4gICBkcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfZGV2aWNl LmMgfCAyMSArKysrKysrKysrKysrKysrKysrKy0KPiAgIDEgZmlsZSBjaGFuZ2VkLCAyMCBpbnNl cnRpb25zKCspLCAxIGRlbGV0aW9uKC0pCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJt L2FtZC9hbWRncHUvYW1kZ3B1X2RldmljZS5jIGIvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUv YW1kZ3B1X2RldmljZS5jCj4gaW5kZXggMmEyMTI2Ny4uOGM4MTQwNCAxMDA2NDQKPiAtLS0gYS9k cml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfZGV2aWNlLmMKPiArKysgYi9kcml2ZXJz L2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfZGV2aWNlLmMKPiBAQCAtMzEwNSw2ICszMTA1LDkg QEAgc3RhdGljIGludCBhbWRncHVfZGV2aWNlX2hhbmRsZV92cmFtX2xvc3Qoc3RydWN0IGFtZGdw dV9kZXZpY2UgKmFkZXYpCj4gICAJbG9uZyByID0gMTsKPiAgIAlpbnQgaSA9IDA7Cj4gICAJbG9u ZyB0bW87Cj4gKwlzdHJ1Y3QgbGlzdF9oZWFkIGxvY2FsX3NoYWRvd19saXN0Owo+ICsKPiArCUlO SVRfTElTVF9IRUFEKCZsb2NhbF9zaGFkb3dfbGlzdCk7Cj4gICAKPiAgIAlpZiAoYW1kZ3B1X3Ny aW92X3J1bnRpbWUoYWRldikpCj4gICAJCXRtbyA9IG1zZWNzX3RvX2ppZmZpZXMoODAwMCk7Cj4g QEAgLTMxMTIsOCArMzExNSwxOSBAQCBzdGF0aWMgaW50IGFtZGdwdV9kZXZpY2VfaGFuZGxlX3Zy YW1fbG9zdChzdHJ1Y3QgYW1kZ3B1X2RldmljZSAqYWRldikKPiAgIAkJdG1vID0gbXNlY3NfdG9f amlmZmllcygxMDApOwo+ICAgCj4gICAJRFJNX0lORk8oInJlY292ZXIgdnJhbSBibyBmcm9tIHNo YWRvdyBzdGFydFxuIik7Cj4gKwo+ICsJbXV0ZXhfbG9jaygmYWRldi0+c2hhZG93X2xpc3RfbG9j ayk7Cj4gKwlsaXN0X3NwbGljZV9pbml0KCZhZGV2LT5zaGFkb3dfbGlzdCwgJmxvY2FsX3NoYWRv d19saXN0KTsKPiArCW11dGV4X3VubG9jaygmYWRldi0+c2hhZG93X2xpc3RfbG9jayk7Cj4gKwo+ ICsKPiAgIAltdXRleF9sb2NrKCZhZGV2LT5zaGFkb3dfbGlzdF9sb2NrKTsKbG9jYWxfc2hhZG93 X2xpc3QgaXMgYSBsb2NhbCB2YXJpYWJsZSwgSSB0aGluayBpdCBkb2Vzbid0IG5lZWQgbG9jayBh dCAKYWxsLCBubyBvbmUgY2hhbmdlIGl0LiBPdGhlcndpc2UgbG9va3MgZ29vZCB0byBtZS4KClRo YW5rcywKRGF2aWQgWmhvdQo+IC0JbGlzdF9mb3JfZWFjaF9lbnRyeV9zYWZlKGJvLCB0bXAsICZh ZGV2LT5zaGFkb3dfbGlzdCwgc2hhZG93X2xpc3QpIHsKPiArCWxpc3RfZm9yX2VhY2hfZW50cnlf c2FmZShibywgdG1wLCAmbG9jYWxfc2hhZG93X2xpc3QsIHNoYWRvd19saXN0KSB7Cj4gKwkJbXV0 ZXhfdW5sb2NrKCZhZGV2LT5zaGFkb3dfbGlzdF9sb2NrKTsKPiArCj4gKwkJaWYgKCFibykKPiAr CQkJY29udGludWU7Cj4gKwo+ICAgCQluZXh0ID0gTlVMTDsKPiAgIAkJYW1kZ3B1X2RldmljZV9y ZWNvdmVyX3ZyYW1fZnJvbV9zaGFkb3coYWRldiwgcmluZywgYm8sICZuZXh0KTsKPiAgIAkJaWYg KGZlbmNlKSB7Cj4gQEAgLTMxMzIsOSArMzE0NiwxNCBAQCBzdGF0aWMgaW50IGFtZGdwdV9kZXZp Y2VfaGFuZGxlX3ZyYW1fbG9zdChzdHJ1Y3QgYW1kZ3B1X2RldmljZSAqYWRldikKPiAgIAo+ICAg CQlkbWFfZmVuY2VfcHV0KGZlbmNlKTsKPiAgIAkJZmVuY2UgPSBuZXh0Owo+ICsJCW11dGV4X2xv Y2soJmFkZXYtPnNoYWRvd19saXN0X2xvY2spOwo+ICAgCX0KPiAgIAltdXRleF91bmxvY2soJmFk ZXYtPnNoYWRvd19saXN0X2xvY2spOwo+ICAgCj4gKwltdXRleF9sb2NrKCZhZGV2LT5zaGFkb3df bGlzdF9sb2NrKTsKPiArCWxpc3Rfc3BsaWNlX2luaXQoJmxvY2FsX3NoYWRvd19saXN0LCAmYWRl di0+c2hhZG93X2xpc3QpOwo+ICsJbXV0ZXhfdW5sb2NrKCZhZGV2LT5zaGFkb3dfbGlzdF9sb2Nr KTsKPiArCj4gICAJaWYgKGZlbmNlKSB7Cj4gICAJCXIgPSBkbWFfZmVuY2Vfd2FpdF90aW1lb3V0 KGZlbmNlLCBmYWxzZSwgdG1vKTsKPiAgIAkJaWYgKHIgPT0gMCkKCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmFtZC1nZnggbWFpbGluZyBsaXN0CmFtZC1n ZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21h aWxtYW4vbGlzdGluZm8vYW1kLWdmeAo=