From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kuoppala Subject: Re: [PATCH] drm/i915: Try harder to reset the gen8+ engines Date: Tue, 06 Sep 2016 14:11:47 +0300 Message-ID: <87oa418eq4.fsf@gaia.fi.intel.com> References: <20160905093015.21820-1-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7C12D6E177 for ; Tue, 6 Sep 2016 11:12:44 +0000 (UTC) In-Reply-To: <20160905093015.21820-1-chris@chris-wilson.co.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson , intel-gfx@lists.freedesktop.org Cc: Daniel Vetter , stable@vger.kernel.org List-Id: intel-gfx@lists.freedesktop.org ClJlc2VuZGluZyBteSByLWIuLi4KCkNocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNv LnVrPiB3cml0ZXM6Cgo+IElmIGF0IGZpcnN0IHdlIGRvbid0IHN1Y2NlZWQsIHRyeSBhZ2Fpbi4K Pgo+IFJ1bm5pbmcgdGhlIHJlc2V0IGFuZCByZWNvdmVyeSByb3V0aW5lcyBpbiBhIGxvb3AgZW5k cyBpbiBhICJyZXNldAo+IHJlcXVlc3QgdGltZW91dCIgd2l0aCBhIG10YmYgb2YgYW4gaG91ciBv biBCcmFzd2VsbC4gVGhpcyBpcyBlZXJpbHkKPiBzaW1pbGFyIHRvIHRoZSB1bnJlY292ZXJhYmxl IHJlc2V0IGNvbmRpdGlvbiB0aGF0IGZpcnN0IHByb21wdGVkIHVzIHRvCj4gdXNlIHRoZSByZXNl dC1yZXF1ZXN0IG1lY2hhbmlzbSBpbiBjb21taXQgN2ZkMmQyNjkyMWQxICgiZHJtL2k5MTU6IFJl c2V0Cj4gcmVxdWVzdCBoYW5kbGluZyBmb3IgZ2VuOCsiKS4gUmVwZWF0aW5nIHRoZSByZXNldCBy ZXF1ZXN0IG1ha2VzIHRoZQo+IGZhaWx1cmUgbXVjaCBoYXJkZXIgdG8gcmVwcm9kdWNlIChidXQg dGhlcmUgaXMgbm8gcmVhc29uIHRvIGJlbGlldmUgdGhhdAo+IGl0IGlzIG1vcmUgdGhhbiBtZXJl IHBhcGVyIG92ZXIgYSB0aW1pbmcgb3Igb3RoZXIgaXNzdWUpLgo+Cj4gU2lnbmVkLW9mZi1ieTog Q2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+Cj4gQ2M6IE1pa2EgS3VvcHBh bGEgPG1pa2Eua3VvcHBhbGFAaW50ZWwuY29tPgo+IENjOiBBcnVuIFNpbHV2ZXJ5IDxhcnVuLnNp bHV2ZXJ5QGxpbnV4LmludGVsLmNvbT4KPiBDYzogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRl ckBmZndsbC5jaD4KPiBDYzogc3RhYmxlQHZnZXIua2VybmVsLm9yZwo+IC0tLQo+ICBkcml2ZXJz L2dwdS9kcm0vaTkxNS9pbnRlbF91bmNvcmUuYyB8IDI0ICsrKysrKysrKysrKystLS0tLS0tLS0t LQo+ICAxIGZpbGUgY2hhbmdlZCwgMTMgaW5zZXJ0aW9ucygrKSwgMTEgZGVsZXRpb25zKC0pCj4K PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfdW5jb3JlLmMgYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF91bmNvcmUuYwo+IGluZGV4IGU5ZjY4Y2Q1NmUzMi4uMWJl OGNlZDAzYmE1IDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3VuY29y ZS5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfdW5jb3JlLmMKPiBAQCAtMTY4 OCwyMCArMTY4OCwyMiBAQCBpbnQgaW50ZWxfd2FpdF9mb3JfcmVnaXN0ZXIoc3RydWN0IGRybV9p OTE1X3ByaXZhdGUgKmRldl9wcml2LAo+ICBzdGF0aWMgaW50IGdlbjhfcmVxdWVzdF9lbmdpbmVf cmVzZXQoc3RydWN0IGludGVsX2VuZ2luZV9jcyAqZW5naW5lKQo+ICB7Cj4gIAlzdHJ1Y3QgZHJt X2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYgPSBlbmdpbmUtPmk5MTU7Cj4gLQlpbnQgcmV0Owo+ICsJ aW50IGxvb3AgPSAzOwo+CgpyZXRyaWVzPwoKPiAtCUk5MTVfV1JJVEVfRlcoUklOR19SRVNFVF9D VEwoZW5naW5lLT5tbWlvX2Jhc2UpLAo+IC0JCSAgICAgIF9NQVNLRURfQklUX0VOQUJMRShSRVNF VF9DVExfUkVRVUVTVF9SRVNFVCkpOwo+ICsJZG8gewo+ICsJCUk5MTVfV1JJVEVfRlcoUklOR19S RVNFVF9DVEwoZW5naW5lLT5tbWlvX2Jhc2UpLAo+ICsJCQkgICAgICBfTUFTS0VEX0JJVF9FTkFC TEUoUkVTRVRfQ1RMX1JFUVVFU1RfUkVTRVQpKTsKPiAgCj4gLQlyZXQgPSBpbnRlbF93YWl0X2Zv cl9yZWdpc3Rlcl9mdyhkZXZfcHJpdiwKPiAtCQkJCQkgUklOR19SRVNFVF9DVEwoZW5naW5lLT5t bWlvX2Jhc2UpLAo+IC0JCQkJCSBSRVNFVF9DVExfUkVBRFlfVE9fUkVTRVQsCj4gLQkJCQkJIFJF U0VUX0NUTF9SRUFEWV9UT19SRVNFVCwKPiAtCQkJCQkgNzAwKTsKPiAtCWlmIChyZXQpCj4gLQkJ RFJNX0VSUk9SKCIlczogcmVzZXQgcmVxdWVzdCB0aW1lb3V0XG4iLCBlbmdpbmUtPm5hbWUpOwo+ ICsJCWlmICghaW50ZWxfd2FpdF9mb3JfcmVnaXN0ZXJfZncoZGV2X3ByaXYsCj4gKwkJCQkJCVJJ TkdfUkVTRVRfQ1RMKGVuZ2luZS0+bW1pb19iYXNlKSwKPiArCQkJCQkJUkVTRVRfQ1RMX1JFQURZ X1RPX1JFU0VULAo+ICsJCQkJCQlSRVNFVF9DVExfUkVBRFlfVE9fUkVTRVQsCj4gKwkJCQkJCTcw MCkpCgoKRGlkIHlvdSBjaGVjayBiZXR3ZWVuIHRoZSB3cml0ZSBkaWRuJ3Qgc3RpY2sgdnMgdGhl IHJlYWR5bmVzcyBkaWRuJ3QKc2lnbmFsPwoKV2l0aCBnZW44LCB3ZSBtaWdodCBnZXQgYXdheSB3 aXRoIGp1c3QgcmVzZXR0aW5nIHJlZ2FyZGxlc3Mgb2YgdGhlCnRoZSByZWFkeSBzdGF0ZS4gTmVl ZHMgc29tZSBleHBlcmltZW50aW5nL3Rlc3RpbmcgZmlyc3QgdGhvLgoKUmV2aWV3ZWQtYnk6IE1p a2EgS3VvcHBhbGEgPG1pa2Eua3VvcHBhbGFAaW50ZWwuY29tPgoKPiArCQkJcmV0dXJuIDA7Cj4g Kwl9IHdoaWxlICgtLWxvb3ApOwo+ICAKPiAtCXJldHVybiByZXQ7Cj4gKwlEUk1fRVJST1IoIiVz OiByZXNldCByZXF1ZXN0IHRpbWVvdXRcbiIsIGVuZ2luZS0+bmFtZSk7Cj4gKwlyZXR1cm4gLUVJ TzsKPiAgfQo+ICAKPiAgc3RhdGljIHZvaWQgZ2VuOF91bnJlcXVlc3RfZW5naW5lX3Jlc2V0KHN0 cnVjdCBpbnRlbF9lbmdpbmVfY3MgKmVuZ2luZSkKPiAtLSAKPiAyLjkuMwpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0 CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3Rv cC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK