From mboxrd@z Thu Jan 1 00:00:00 1970 From: zhoucm1 Subject: Re: [PATCH] drm/amdgpu: fix deadlock of reservation between cs and gpu reset v2 Date: Fri, 28 Apr 2017 16:33:46 +0800 Message-ID: <5902FE6A.3020801@amd.com> References: <1493347534-8201-1-git-send-email-David1.Zhou@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: 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: =?UTF-8?B?Q2hyaXN0aWFuIEvDtm5pZw==?= , "Zhang, Jerry" , "amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org" QWdyZWUsIGJ1dCBsaWJkcm0gZG9lc24ndCBhbGxvdyBjb25jdXJyZW50IHN1Ym1pc3Npb25zIGZy b20gc2FtZSAKY29udGV4dCwgbGlrZSBwcm90ZWN0aW9uICdwdGhyZWFkX211dGV4X2xvY2soJmNv bnRleHQtPnNlcXVlbmNlX211dGV4KTsnIAppbiBhbWRncHVfY3Nfc3VibWl0X29uZS4KClJlZ2Fy ZHMsCkRhdmlkIFpob3UKT24gMjAxN+W5tDA05pyIMjjml6UgMTY6MTUsIENocmlzdGlhbiBLw7Zu aWcgd3JvdGU6Cj4gSW5kZWVkLCBidXQgYWZ0ZXIgYSBiaXQgb2YgdGhpbmtpbmcgSSd2ZSBmb3Vu ZCBhbm90aGVyIHByb2JsZW0gd2l0aCAKPiB0aGF0IHBhdGNoLgo+Cj4gV2hlbiB0d28gdGhyZWFk cyBhcmUgcHVzaGluZyBqb2JzIGludG8gdGhlIHNhbWUgc2NoZWR1bGVyIGNvbnRleHQgd2UgCj4g ZG9uJ3QgZ3VhcmFudGVlIGNvcnJlY3QgZXhlY3V0aW9uIG9yZGVyIGFueSBtb3JlIQo+Cj4gQmVm b3JlIHRoYXQgcGF0Y2ggaXQgd2FzIGhhbmRsZWQgYnkgdGhlIGV4Y2x1c2l2ZW5lc3Mgd2UgaGFk IGJlY2F1c2UgCj4gb2YgcmVzZXJ2aW5nIHRoZSBWTSBwYWdlIHRhYmxlcywgYnV0IG5vdyBub3Ro aW5nIHByZXZlbnRzIHVzIGZyb20gCj4gY2FsbGluZyBhbWRfc2NoZWRfZW50aXR5X3B1c2hfam9i KCkgaW4gbm9uZGV0ZXJtaW5pc3RpYyBvcmRlci4KPgo+IEluIG90aGVyIHdvcmRzIHdlIG5lZWQg YW4gYWRkaXRpb25hbCBsb2NrIGluIGFtZGdwdV9jdHhfcmluZyBvciAKPiBzb21ldGhpbmcgbGlr ZSB0aGF0Lgo+Cj4gUmVnYXJkcywKPiBDaHJpc3RpYW4uCj4KPiBBbSAyOC4wNC4yMDE3IHVtIDA0 OjUxIHNjaHJpZWIgWmhhbmcsIEplcnJ5Ogo+PiBOaWNlIGNhdGNoIQo+PiBSZXZpZXdlZC1ieTog SnVud2VpIFpoYW5nIDxKZXJyeS5aaGFuZ0BhbWQuY29tPgo+Pgo+PiBSZWdhcmRzLAo+PiBKZXJy eSAoSnVud2VpIFpoYW5nKQo+Pgo+PiBMaW51eCBCYXNlIEdyYXBoaWNzCj4+IFNSREMgU29mdHdh cmUgRGV2ZWxvcG1lbnQKPj4gX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwo+ Pgo+Pgo+Pj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0KPj4+IEZyb206IGFtZC1nZnggW21h aWx0bzphbWQtZ2Z4LWJvdW5jZXNAbGlzdHMuZnJlZWRlc2t0b3Aub3JnXSBPbiAKPj4+IEJlaGFs ZiBPZgo+Pj4gQ2h1bm1pbmcgWmhvdQo+Pj4gU2VudDogRnJpZGF5LCBBcHJpbCAyOCwgMjAxNyAx MDo0Ngo+Pj4gVG86IGFtZC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCj4+PiBDYzogWmhvdSwg RGF2aWQoQ2h1bk1pbmcpCj4+PiBTdWJqZWN0OiBbUEFUQ0hdIGRybS9hbWRncHU6IGZpeCBkZWFk bG9jayBvZiByZXNlcnZhdGlvbiBiZXR3ZWVuIGNzIAo+Pj4gYW5kIGdwdQo+Pj4gcmVzZXQgdjIK Pj4+Cj4+PiB0aGUgY2FzZSBjb3VsZCBoYXBwZW4gd2hlbiBncHUgcmVzZXQ6Cj4+PiAxLiB3aGVu IGdwdSByZXNldCwgY3MgY2FuIGJlIGNvbnRpbnVlIHVudGlsIHN3IHF1ZXVlIGlzIGZ1bGwsIHRo ZW4gCj4+PiBwdXNoIGpvYiB3aWxsCj4+PiB3YWl0IHdpdGggaG9sZGluZyBwZCByZXNlcnZhdGlv bi4KPj4+IDIuIGdwdV9yZXNldCByb3V0aW5lIHdpbGwgYWxzbyBuZWVkIHBkIHJlc2VydmF0aW9u IHRvIHJlc3RvcmUgcGFnZSAKPj4+IHRhYmxlIGZyb20KPj4+IHRoZWlyIHNoYWRvdy4KPj4+IDMu IGNzIGlzIHdhaXRpbmcgZm9yIGdwdV9yZXNldCBjb21wbGV0ZSwgYnV0IGdwdSByZXNldCBpcyB3 YWl0aW5nIAo+Pj4gZm9yIGNzIHJlbGVhc2VzCj4+PiByZXNlcnZhdGlvbi4KPj4+Cj4+PiB2Mjog aGFuZGxlIGFtZGdwdV9jc19zdWJtaXQgZXJyb3IgcGF0aC4KPj4+Cj4+PiBDaGFuZ2UtSWQ6IEkw ZjY2ZDA0YjJiZWYzNDMzMDM1MTA5NjIzYzhhNWM1OTkyYzg0MjAyCj4+PiBTaWduZWQtb2ZmLWJ5 OiBDaHVubWluZyBaaG91IDxEYXZpZDEuWmhvdUBhbWQuY29tPgo+Pj4gUmV2aWV3ZWQtYnk6IENo cmlzdGlhbiBLw7ZuaWcgPGNocmlzdGlhbi5rb2VuaWdAYW1kLmNvbT4KPj4+IFJldmlld2VkLWJ5 OiBKdW53ZWkgWmhhbmcgPEplcnJ5LlpoYW5nQGFtZC5jb20+Cj4+PiBSZXZpZXdlZC1ieTogTW9u ayBMaXUgPG1vbmsubGl1QGFtZC5jb20+Cj4+PiAtLS0KPj4+ICAgZHJpdmVycy9ncHUvZHJtL2Ft ZC9hbWRncHUvYW1kZ3B1X2NzLmMgfCA0ICsrKysKPj4+ICAgMSBmaWxlIGNoYW5nZWQsIDQgaW5z ZXJ0aW9ucygrKQo+Pj4KPj4+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdw dS9hbWRncHVfY3MuYwo+Pj4gYi9kcml2ZXJzL2dwdS9kcm0vYW1kL2FtZGdwdS9hbWRncHVfY3Mu Ywo+Pj4gaW5kZXggMjYxNjhkZi4uNjk5ZjVmZSAxMDA2NDQKPj4+IC0tLSBhL2RyaXZlcnMvZ3B1 L2RybS9hbWQvYW1kZ3B1L2FtZGdwdV9jcy5jCj4+PiArKysgYi9kcml2ZXJzL2dwdS9kcm0vYW1k L2FtZGdwdS9hbWRncHVfY3MuYwo+Pj4gQEAgLTEwNzQsNiArMTA3NCw3IEBAIHN0YXRpYyBpbnQg YW1kZ3B1X2NzX3N1Ym1pdChzdHJ1Y3QgCj4+PiBhbWRncHVfY3NfcGFyc2VyCj4+PiAqcCwKPj4+ ICAgICAgIGNzLT5vdXQuaGFuZGxlID0gYW1kZ3B1X2N0eF9hZGRfZmVuY2UocC0+Y3R4LCByaW5n LCBwLT5mZW5jZSk7Cj4+PiAgICAgICBqb2ItPnVmX3NlcXVlbmNlID0gY3MtPm91dC5oYW5kbGU7 Cj4+PiAgICAgICBhbWRncHVfam9iX2ZyZWVfcmVzb3VyY2VzKGpvYik7Cj4+PiArICAgIGFtZGdw dV9jc19wYXJzZXJfZmluaShwLCAwLCB0cnVlKTsKPj4+Cj4+PiAgICAgICB0cmFjZV9hbWRncHVf Y3NfaW9jdGwoam9iKTsKPj4+ICAgICAgIGFtZF9zY2hlZF9lbnRpdHlfcHVzaF9qb2IoJmpvYi0+ YmFzZSk7Cj4+PiBAQCAtMTEyOSw3ICsxMTMwLDEwIEBAIGludCBhbWRncHVfY3NfaW9jdGwoc3Ry dWN0IGRybV9kZXZpY2UgKmRldiwgdm9pZAo+Pj4gKmRhdGEsIHN0cnVjdCBkcm1fZmlsZSAqZmls cCkKPj4+ICAgICAgICAgICBnb3RvIG91dDsKPj4+Cj4+PiAgICAgICByID0gYW1kZ3B1X2NzX3N1 Ym1pdCgmcGFyc2VyLCBjcyk7Cj4+PiArICAgIGlmIChyKQo+Pj4gKyAgICAgICAgZ290byBvdXQ7 Cj4+Pgo+Pj4gKyAgICByZXR1cm4gMDsKPj4+ICAgb3V0Ogo+Pj4gICAgICAgYW1kZ3B1X2NzX3Bh cnNlcl9maW5pKCZwYXJzZXIsIHIsIHJlc2VydmVkX2J1ZmZlcnMpOwo+Pj4gICAgICAgcmV0dXJu IHI7Cj4+PiAtLSAKPj4+IDEuOS4xCj4+Pgo+Pj4gX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KPj4+IGFtZC1nZnggbWFpbGluZyBsaXN0Cj4+PiBhbWQtZ2Z4 QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwo+Pj4gaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcv bWFpbG1hbi9saXN0aW5mby9hbWQtZ2Z4Cj4+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fCj4+IGFtZC1nZnggbWFpbGluZyBsaXN0Cj4+IGFtZC1nZnhAbGlz dHMuZnJlZWRlc2t0b3Aub3JnCj4+IGh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxt YW4vbGlzdGluZm8vYW1kLWdmeAo+Cj4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fCmFtZC1nZnggbWFpbGluZyBsaXN0CmFtZC1nZnhAbGlzdHMuZnJlZWRl c2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8v YW1kLWdmeAo=