From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Deng, Emily" Subject: RE: [PATCH] drm/amdgpu: Fix the dead lock issue. Date: Tue, 11 Sep 2018 03:23:26 +0000 Message-ID: References: <1536634293-26099-1-git-send-email-Emily.Deng@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: 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: "Zhou, David(ChunMing)" , "amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org" Pi0tLS0tT3JpZ2luYWwgTWVzc2FnZS0tLS0tDQo+RnJvbTogWmhvdSwgRGF2aWQoQ2h1bk1pbmcp DQo+U2VudDogVHVlc2RheSwgU2VwdGVtYmVyIDExLCAyMDE4IDExOjAzIEFNDQo+VG86IERlbmcs IEVtaWx5IDxFbWlseS5EZW5nQGFtZC5jb20+OyBhbWQtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9y Zw0KPlN1YmplY3Q6IFJlOiBbUEFUQ0hdIGRybS9hbWRncHU6IEZpeCB0aGUgZGVhZCBsb2NrIGlz c3VlLg0KPg0KPg0KPg0KPk9uIDIwMTjlubQwOeaciDEx5pelIDEwOjUxLCBFbWlseSBEZW5nIHdy b3RlOg0KPj4gSXQgd2lsbCByYW1kb21seSBoYXZlIHRoZSBkZWFkIGxvY2sgaXNzdWUgd2hlbiB0 ZXN0IFREUjoNCj4+IDEuIGFtZGdwdV9kZXZpY2VfaGFuZGxlX3ZyYW1fbG9zdCBnZXRzIHRoZSBs b2NrIHNoYWRvd19saXN0X2xvY2sgMi4NCj4+IGFtZGdwdV9ib19jcmVhdGUgbG9ja2VkIHRoZSBi bydzIHJlc3YgbG9jayAzLiBhbWRncHVfYm9fY3JlYXRlX3NoYWRvdw0KPj4gaXMgd2FpdGluZyBm b3IgdGhlIHNoYWRvd19saXN0X2xvY2sgNC4NCj4+IGFtZGdwdV9kZXZpY2VfcmVjb3Zlcl92cmFt X2Zyb21fc2hhZG93IGlzIHdhaXRpbmcgZm9yIHRoZSBibydzIHJlc3YNCj4+IGxvY2suDQo+Pg0K Pj4gdjI6DQo+PiAgICAgTWFrZSBhIGxvY2FsIGNvcHkgb2YgdGhlIGxpc3QNCj4+DQo+PiBTaWdu ZWQtb2ZmLWJ5OiBFbWlseSBEZW5nIDxFbWlseS5EZW5nQGFtZC5jb20+DQo+PiAtLS0NCj4+ICAg ZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2RldmljZS5jIHwgMjENCj4rKysrKysr KysrKysrKysrKysrKy0NCj4+ICAgMSBmaWxlIGNoYW5nZWQsIDIwIGluc2VydGlvbnMoKyksIDEg ZGVsZXRpb24oLSkNCj4+DQo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2FtZC9hbWRn cHUvYW1kZ3B1X2RldmljZS5jDQo+PiBiL2RyaXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdw dV9kZXZpY2UuYw0KPj4gaW5kZXggMmEyMTI2Ny4uOGM4MTQwNCAxMDA2NDQNCj4+IC0tLSBhL2Ry aXZlcnMvZ3B1L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9kZXZpY2UuYw0KPj4gKysrIGIvZHJpdmVy cy9ncHUvZHJtL2FtZC9hbWRncHUvYW1kZ3B1X2RldmljZS5jDQo+PiBAQCAtMzEwNSw2ICszMTA1 LDkgQEAgc3RhdGljIGludA0KPmFtZGdwdV9kZXZpY2VfaGFuZGxlX3ZyYW1fbG9zdChzdHJ1Y3Qg YW1kZ3B1X2RldmljZSAqYWRldikNCj4+ICAgCWxvbmcgciA9IDE7DQo+PiAgIAlpbnQgaSA9IDA7 DQo+PiAgIAlsb25nIHRtbzsNCj4+ICsJc3RydWN0IGxpc3RfaGVhZCBsb2NhbF9zaGFkb3dfbGlz dDsNCj4+ICsNCj4+ICsJSU5JVF9MSVNUX0hFQUQoJmxvY2FsX3NoYWRvd19saXN0KTsNCj4+DQo+ PiAgIAlpZiAoYW1kZ3B1X3NyaW92X3J1bnRpbWUoYWRldikpDQo+PiAgIAkJdG1vID0gbXNlY3Nf dG9famlmZmllcyg4MDAwKTsNCj4+IEBAIC0zMTEyLDggKzMxMTUsMTkgQEAgc3RhdGljIGludA0K PmFtZGdwdV9kZXZpY2VfaGFuZGxlX3ZyYW1fbG9zdChzdHJ1Y3QgYW1kZ3B1X2RldmljZSAqYWRl dikNCj4+ICAgCQl0bW8gPSBtc2Vjc190b19qaWZmaWVzKDEwMCk7DQo+Pg0KPj4gICAJRFJNX0lO Rk8oInJlY292ZXIgdnJhbSBibyBmcm9tIHNoYWRvdyBzdGFydFxuIik7DQo+PiArDQo+PiArCW11 dGV4X2xvY2soJmFkZXYtPnNoYWRvd19saXN0X2xvY2spOw0KPj4gKwlsaXN0X3NwbGljZV9pbml0 KCZhZGV2LT5zaGFkb3dfbGlzdCwgJmxvY2FsX3NoYWRvd19saXN0KTsNCj4+ICsJbXV0ZXhfdW5s b2NrKCZhZGV2LT5zaGFkb3dfbGlzdF9sb2NrKTsNCj4+ICsNCj4+ICsNCj4+ICAgCW11dGV4X2xv Y2soJmFkZXYtPnNoYWRvd19saXN0X2xvY2spOw0KPmxvY2FsX3NoYWRvd19saXN0IGlzIGEgbG9j YWwgdmFyaWFibGUsIEkgdGhpbmsgaXQgZG9lc24ndCBuZWVkIGxvY2sgYXQgYWxsLCBubyBvbmUN Cj5jaGFuZ2UgaXQuIE90aGVyd2lzZSBsb29rcyBnb29kIHRvIG1lLg0KVGhlIGJvLT5zaGFkb3df bGlzdCB3aGljaCBub3cgaXMgaW4gbG9jYWxfc2hhZG93X2xpc3QgbWF5YmUgZGVzdHJveSBpbiBj YXNlIHRoYXQgaXQgYWxyZWFkeSBpbiBhbWRncHVfYm9fZGVzdHJveSwgdGhlbiBpdCB3aWxsDQpj aGFuZ2UgbG9jYWxfc2hhZG93X2xpc3QsIHNvIG5lZWQgbG9jayB0aGUgc2hhZG93X2xpc3RfbG9j ay4NCkJlc3Qgd2lzaGVzDQpFbWlseSBEZW5nDQo+VGhhbmtzLA0KPkRhdmlkIFpob3UNCj4+IC0J bGlzdF9mb3JfZWFjaF9lbnRyeV9zYWZlKGJvLCB0bXAsICZhZGV2LT5zaGFkb3dfbGlzdCwgc2hh ZG93X2xpc3QpIHsNCj4+ICsJbGlzdF9mb3JfZWFjaF9lbnRyeV9zYWZlKGJvLCB0bXAsICZsb2Nh bF9zaGFkb3dfbGlzdCwgc2hhZG93X2xpc3QpIHsNCj4+ICsJCW11dGV4X3VubG9jaygmYWRldi0+ c2hhZG93X2xpc3RfbG9jayk7DQo+PiArDQo+PiArCQlpZiAoIWJvKQ0KPj4gKwkJCWNvbnRpbnVl Ow0KPj4gKw0KPj4gICAJCW5leHQgPSBOVUxMOw0KPj4gICAJCWFtZGdwdV9kZXZpY2VfcmVjb3Zl cl92cmFtX2Zyb21fc2hhZG93KGFkZXYsIHJpbmcsIGJvLA0KPiZuZXh0KTsNCj4+ICAgCQlpZiAo ZmVuY2UpIHsNCj4+IEBAIC0zMTMyLDkgKzMxNDYsMTQgQEAgc3RhdGljIGludA0KPj4gYW1kZ3B1 X2RldmljZV9oYW5kbGVfdnJhbV9sb3N0KHN0cnVjdCBhbWRncHVfZGV2aWNlICphZGV2KQ0KPj4N Cj4+ICAgCQlkbWFfZmVuY2VfcHV0KGZlbmNlKTsNCj4+ICAgCQlmZW5jZSA9IG5leHQ7DQo+PiAr CQltdXRleF9sb2NrKCZhZGV2LT5zaGFkb3dfbGlzdF9sb2NrKTsNCj4+ICAgCX0NCj4+ICAgCW11 dGV4X3VubG9jaygmYWRldi0+c2hhZG93X2xpc3RfbG9jayk7DQo+Pg0KPj4gKwltdXRleF9sb2Nr KCZhZGV2LT5zaGFkb3dfbGlzdF9sb2NrKTsNCj4+ICsJbGlzdF9zcGxpY2VfaW5pdCgmbG9jYWxf c2hhZG93X2xpc3QsICZhZGV2LT5zaGFkb3dfbGlzdCk7DQo+PiArCW11dGV4X3VubG9jaygmYWRl di0+c2hhZG93X2xpc3RfbG9jayk7DQo+PiArDQo+PiAgIAlpZiAoZmVuY2UpIHsNCj4+ICAgCQly ID0gZG1hX2ZlbmNlX3dhaXRfdGltZW91dChmZW5jZSwgZmFsc2UsIHRtbyk7DQo+PiAgIAkJaWYg KHIgPT0gMCkNCg0KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X18KYW1kLWdmeCBtYWlsaW5nIGxpc3QKYW1kLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0 cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9hbWQtZ2Z4Cg==