From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH v3] drm/i915: Avoid GPU Hang when comming out of s3 or s4 Date: Mon, 11 May 2015 12:33:03 +0200 Message-ID: <20150511103303.GZ15256@phenom.ffwll.local> References: <1431330645-26704-1-git-send-email-peter.antoine@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wg0-f49.google.com (mail-wg0-f49.google.com [74.125.82.49]) by gabe.freedesktop.org (Postfix) with ESMTP id A19D46E081 for ; Mon, 11 May 2015 03:30:43 -0700 (PDT) Received: by wgiu9 with SMTP id u9so123688973wgi.3 for ; Mon, 11 May 2015 03:30:42 -0700 (PDT) Content-Disposition: inline In-Reply-To: <1431330645-26704-1-git-send-email-peter.antoine@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Peter Antoine Cc: daniel.vetter@ffwll.ch, intel-gfx@lists.freedesktop.org, david.weinehall@intel.com, yex.tian@intel.com, deepak.s@intel.com List-Id: intel-gfx@lists.freedesktop.org T24gTW9uLCBNYXkgMTEsIDIwMTUgYXQgMDg6NTA6NDVBTSArMDEwMCwgUGV0ZXIgQW50b2luZSB3 cm90ZToKPiBUaGlzIHBhdGNoIGZpeGVzIGEgdGltaW5nIGlzc3VlIHRoYXQgY2F1c2VzIGEgR1BV IGhhbmcgd2hlbiB0aGUgc3lzdGVtCj4gY29tZXMgb3V0IG9mIHBvd2VyIHNhdmluZy4KPiAKPiBE dXJpbmcgcG1fcmVzdW1lLCBXZSBhcmUgc3VibWl0dGluZyBiYXRjaGJ1ZmZlcnMgYmVmb3JlIGVu YWJsaW5nCj4gSW50ZXJydXB0cyB0aGlzIGlzIGNhdXNpbmcgdXMgdG8gbWlzcyB0aGUgY29udGV4 dCBzd2l0Y2ggaW50ZXJydXB0LAo+IGFuZCBpbiBjb25zZXF1ZW5jZSBpbnRlbF9leGVjbGlzdHNf aGFuZGxlX2N0eF9ldmVudHMgaXMgbm90IHRyaWdnZXJlZC4KPiAKPiBUaGlzIHBhdGNoIGlzIGJh c2VkIG9uIGEgcGF0Y2ggZnJvbSBEZWVwYWsgUyA8ZGVlcGFrLnNAaW50ZWwuY29tPgo+IGZyb20g YW5vdGhlciBwbGF0Zm9ybS4KPiAKPiBUaGUgcGF0Y2ggZml4ZXMgYW4gaXNzdWUgaW50cm9kdWNl ZCBieToKPiAgIGNvbW1pdCBlNzc3OGJlMWVhYjkxODI3NGY3OTYwM2Q3YzE3YjNlYzhiZTc3Mzg2 Cj4gICBkcm0vaTkxNTogRml4IHN0YXJ0dXAgZmFpbHVyZSBpbiBMUkMgbW9kZSBhZnRlciByZWNl bnQgaW5pdCBjaGFuZ2VzCj4gCj4gVGhlIGFib3ZlIHBhdGNoIGFkZGVkIGEgY2FsbCB0byBpbml0 X2NvbnRleHQoKSB0byBmaXggYW4gaXNzdWUgaW50cm9kdWNlZAo+IGJ5IGEgcHJldmlvdXMgcGF0 Y2guIEJ1dCwgaXQgdGhlbiBvcGVuZWQgdXAgYSBzbWFsbCB0aW1pbmcgd2luZG93IGZvciB0aGUK PiBiYXRjaGVzIGJlaW5nIGFkZGVkIGJ5IHRoZSBpbml0X2NvbnRleHQgKGJhc2ljYWxseSBzZXR0 aW5nIHVwIHRoZSBjb250ZXh0KQo+IHRvIGNvbXBsZXRlIGJlZm9yZSB0aGUgaW50ZXJydXB0cyBo YXZlIGJlZW4gdHVybmVkIG9uLCB0aHVzIGhhbmdpbmcgdGhlCj4gR1BVLgo+IAo+IEJVRzogaHR0 cHM6Ly9idWdzLmZyZWVkZXNrdG9wLm9yZy9zaG93X2J1Zy5jZ2k/aWQ9ODk2MDAKCkl0J3MgQnVn emlsbGE6IEFsc28gdGhpcyBuZWVkcyB0byBiZSBiYWNrcG9ydGVkIHRvIDQuMCwgc28gbmVlZHMg YW4KQ2M6IHN0YWJsZUB2Z2VyLmtlcm5lbC5vcmcKCldpdGggdGhpcyBjaGFuZ2UgdGhlIHJlc3Vt ZSBjb2RlIGlzIG5vdyBhZ2FpbiBpbi1saW5lIHdydCBpbnRlcnJ1cHQKZW5hYmxpbmcgYW5kIGdl bV9pbml0X2h3IHdpdGggdGhlIGRyaXZlciBsb2FkIGFuZCBncHUgcmVzZXQgY29kZS4KClJldmll d2VkLWJ5OiBEYW5pZWwgVmV0dGVyIDxkYW5pZWwudmV0dGVyQGZmd2xsLmNoPgoKQ2hlZXJzLCBE YW5pZWwKCj4gU2lnbmVkLW9mZi1ieTogUGV0ZXIgQW50b2luZSA8cGV0ZXIuYW50b2luZUBpbnRl bC5jb20+Cj4gLS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZHJ2LmMgfCAxMCArKysr KysrLS0tCj4gIDEgZmlsZSBjaGFuZ2VkLCA3IGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25zKC0p Cj4gCj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZHJ2LmMgYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5jCj4gaW5kZXggNmJiNmM0Ny4uOTBiMTMwOSAxMDA2 NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5jCj4gKysrIGIvZHJpdmVy cy9ncHUvZHJtL2k5MTUvaTkxNV9kcnYuYwo+IEBAIC03MzQsNiArNzM0LDEyIEBAIHN0YXRpYyBp bnQgaTkxNV9kcm1fcmVzdW1lKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYpCj4gIAlpbnRlbF9pbml0 X3BjaF9yZWZjbGsoZGV2KTsKPiAgCWRybV9tb2RlX2NvbmZpZ19yZXNldChkZXYpOwo+ICAKPiAr CS8qIEludGVycnVwdHMgaGF2ZSB0byBlbmFibGVkIHNvIHRoYXQgYW55IGJhdGNoZXMgdGhhdCBh cmUgY29tcGxldGVkCj4gKwkgKiB3aGVuIHRoZSBjb250ZXh0IGlzIHJlc3RhcnRlZCBhcmUgY2F1 Z2h0IHNvIHRoYXQgdGhlIHJpbmcgYnVmZmVyCj4gKwkgKiBkb2VzIG5vdCBoYW5kbGUuCj4gKwkg Ki8KPiArCWludGVsX3J1bnRpbWVfcG1fZW5hYmxlX2ludGVycnVwdHMoZGV2X3ByaXYpOwo+ICsK PiAgCW11dGV4X2xvY2soJmRldi0+c3RydWN0X211dGV4KTsKPiAgCWlmIChpOTE1X2dlbV9pbml0 X2h3KGRldikpIHsKPiAgCQlEUk1fRVJST1IoImZhaWxlZCB0byByZS1pbml0aWFsaXplIEdQVSwg ZGVjbGFyaW5nIHdlZGdlZCFcbiIpOwo+IEBAIC03NDEsOSArNzQ3LDcgQEAgc3RhdGljIGludCBp OTE1X2RybV9yZXN1bWUoc3RydWN0IGRybV9kZXZpY2UgKmRldikKPiAgCX0KPiAgCW11dGV4X3Vu bG9jaygmZGV2LT5zdHJ1Y3RfbXV0ZXgpOwo+ICAKPiAtCS8qIFdlIG5lZWQgd29ya2luZyBpbnRl cnJ1cHRzIGZvciBtb2Rlc2V0IGVuYWJsaW5nIC4uLiAqLwo+IC0JaW50ZWxfcnVudGltZV9wbV9l bmFibGVfaW50ZXJydXB0cyhkZXZfcHJpdik7Cj4gLQo+ICsJLyogVGhpcyBtdXN0IGZvbGxvdyB0 aGUgcG0gZW5hYmxlIGludGVycnVwdHMgKi8KPiAgCWludGVsX21vZGVzZXRfaW5pdF9odyhkZXYp Owo+ICAKPiAgCXNwaW5fbG9ja19pcnEoJmRldl9wcml2LT5pcnFfbG9jayk7Cj4gLS0gCj4gMS45 LjEKPiAKCi0tIApEYW5pZWwgVmV0dGVyClNvZnR3YXJlIEVuZ2luZWVyLCBJbnRlbCBDb3Jwb3Jh dGlvbgpodHRwOi8vYmxvZy5mZndsbC5jaApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5m cmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3Rp bmZvL2ludGVsLWdmeAo=