From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: Re: [PATCH v2] drm/i915: Only report a wakeup if the waiter was truly asleep Date: Thu, 6 Apr 2017 09:04:23 +0100 Message-ID: References: <20170404143824.25952-1-chris@chris-wilson.co.uk> <20170405124757.23835-1-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" 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 21AAA6E14B for ; Thu, 6 Apr 2017 08:04:28 +0000 (UTC) In-Reply-To: <20170405124757.23835-1-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 List-Id: intel-gfx@lists.freedesktop.org Ck9uIDA1LzA0LzIwMTcgMTM6NDcsIENocmlzIFdpbHNvbiB3cm90ZToKPiBJZiB3ZSBhdHRlbXB0 IHRvIHdha2UgdXAgYSB3YWl0ZXIsIHdobyBpcyBjdXJyZW50bHkgY2hlY2tpbmcgdGhlIHNlcW5v Cj4gaXQgd2lsbCBiZSBpbiB0aGUgVEFTS19JTlRFUlJVUFRJQkxFIHN0YXRlIGFuZCB0dHd1IHdp bGwgcmVwb3J0IHN1Y2Nlc3MuCj4gSG93ZXZlciwgaXQgaXMgYWN0dWFsbHkgYXdha2UgYW5kIGZ1 bmN0aW9uaW5nIC0tIHNvIGRlbGF5IHJlcG9ydGluZyB0aGUKPiBhY3R1YWwgd2FrZSB1cCB1bnRp bCBpdCBzbGVlcHMuCj4KPiB2MjogRGVmZW5kIGFnYWluc3QgIUNPTkZJR19TTVAKPgo+IFJlZmVy ZW5jZXM6IGh0dHBzOi8vYnVncy5mcmVlZGVza3RvcC5vcmcvc2hvd19idWcuY2dpP2lkPTEwMDAw Nwo+IFNpZ25lZC1vZmYtYnk6IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVr Pgo+IENjOiBUdnJ0a28gVXJzdWxpbiA8dHZydGtvLnVyc3VsaW5AaW50ZWwuY29tPgo+IENjOiBK b29uYXMgTGFodGluZW4gPGpvb25hcy5sYWh0aW5lbkBsaW51eC5pbnRlbC5jb20+Cj4gLS0tCj4g IGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2JyZWFkY3J1bWJzLmMgfCAyMSArKysrKysrKysr KysrKysrKysrLS0KPiAgMSBmaWxlIGNoYW5nZWQsIDE5IGluc2VydGlvbnMoKyksIDIgZGVsZXRp b25zKC0pCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfYnJlYWRj cnVtYnMuYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2JyZWFkY3J1bWJzLmMKPiBpbmRl eCA5Y2NiZjI2MTI0YzYuLjRmZGY3ODY4ZTJmMSAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9k cm0vaTkxNS9pbnRlbF9icmVhZGNydW1icy5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUv aW50ZWxfYnJlYWRjcnVtYnMuYwo+IEBAIC0yNyw2ICsyNywyMyBAQAo+Cj4gICNpbmNsdWRlICJp OTE1X2Rydi5oIgo+Cj4gKyNpZmRlZiBDT05GSUdfU01QCj4gKyNkZWZpbmUgdGFza19hc2xlZXAo dHNrKSAoISh0c2spLT5vbl9jcHUpCj4gKyNlbHNlCj4gKyNkZWZpbmUgdGFza19hc2xlZXAodHNr KSAoKHRzaykgIT0gY3VycmVudCkKPiArI2VuZGlmCgpJJ3ZlIGxvb2tlZCBhbmQgb25fY3B1IHNl ZW1zIHRvIGJlIGEgYm9vbGVhbiBpbmRpY2F0aW5nIHdoZXRoZXIgYSB0YXNrIAppcyBjdXJyZW50 bHkgcnVubmluZy4gV2hpY2ggbWVhbnMgb24gVVAgdHNrICE9IGN1cnJlbnQgaXMgYSBjb3JyZWN0 IApyZXBsYWNlbWVudC4gSG93ZXZlciAuLi4KCj4gKwo+ICtzdGF0aWMgaW5saW5lIGJvb2wgX193 YWtlX3VwX3NsZWVwZXIoc3RydWN0IHRhc2tfc3RydWN0ICp0c2spCj4gK3sKPiArCS8qIEJlIGNh cmVmdWwgbm90IHRvIHJlcG9ydCBhIHN1Y2Nlc3NmdWwgd2FrZXVwIGlmIHRoZSB3YWl0ZXIgaXMK PiArCSAqIGN1cnJlbnRseSBwcm9jZXNzaW5nIHRoZSBzZXFubywgd2hlcmUgaXQgd2lsbCBoYXZl IGFscmVhZHkKPiArCSAqIGNhbGxlZCBzZXRfdGFza19zdGF0ZShUQVNLX0lOVEVSUlVQVElCTEUp LiBXZSBmaXJzdCBjaGVjayB3aGV0aGVyCj4gKwkgKiB0aGUgdGFzayBpcyBjdXJyZW50bHkgYXNs ZWVwIGJlZm9yZSBjYWxsaW5nIHR0d3UsIGFuZCB0aGVuIHdlCj4gKwkgKiBvbmx5IHJlcG9ydCBz dWNjZXNzIGlmIHdlIHdlcmUgdGhlIG9uZXMgdG8gdGhlbiB0cmlnZ2VyIHRoZSB3YWtldXAuCj4g KwkgKi8KPiArCXJldHVybiB0YXNrX2FzbGVlcCh0c2spICYmIHdha2VfdXBfcHJvY2Vzcyh0c2sp OwoKLi4uIEkgZG9uJ3Qgc2VlIHdoeSBvbiBTTVAgdGFzayBjb3VsZG4ndCBnZXQgIm9uX2NwdSIg YmV0d2VlbiB0aGUgCnRhc2tfYXNsZWVwKCkgYW5kIHdha2VfdXBfcHJvY2Vzcz8gVGhhdCB3b3Vs ZCB0aGVuIGZvaWwgdGhlIHRlc3QgYW5kIApqdXN0IHNocmluayB0aGUgcmFjZSB3aW5kb3cgYSBi aXQuCgpSZWdhcmRzLAoKVHZydGtvCgo+ICt9Cj4gKwo+ICBzdGF0aWMgdW5zaWduZWQgaW50IF9f aW50ZWxfYnJlYWRjcnVtYnNfd2FrZXVwKHN0cnVjdCBpbnRlbF9icmVhZGNydW1icyAqYikKPiAg ewo+ICAJc3RydWN0IGludGVsX3dhaXQgKndhaXQ7Cj4gQEAgLTM3LDcgKzU0LDcgQEAgc3RhdGlj IHVuc2lnbmVkIGludCBfX2ludGVsX2JyZWFkY3J1bWJzX3dha2V1cChzdHJ1Y3QgaW50ZWxfYnJl YWRjcnVtYnMgKmIpCj4gIAl3YWl0ID0gYi0+aXJxX3dhaXQ7Cj4gIAlpZiAod2FpdCkgewo+ICAJ CXJlc3VsdCA9IEVOR0lORV9XQUtFVVBfV0FJVEVSOwo+IC0JCWlmICh3YWtlX3VwX3Byb2Nlc3Mo d2FpdC0+dHNrKSkKPiArCQlpZiAoX193YWtlX3VwX3NsZWVwZXIod2FpdC0+dHNrKSkKPiAgCQkJ cmVzdWx0IHw9IEVOR0lORV9XQUtFVVBfQVNMRUVQOwo+ICAJfQo+Cj4gQEAgLTE5OCw3ICsyMTUs NyBAQCB2b2lkIGludGVsX2VuZ2luZV9kaXNhcm1fYnJlYWRjcnVtYnMoc3RydWN0IGludGVsX2Vu Z2luZV9jcyAqZW5naW5lKQo+Cj4gIAlyYnRyZWVfcG9zdG9yZGVyX2Zvcl9lYWNoX2VudHJ5X3Nh ZmUod2FpdCwgbiwgJmItPndhaXRlcnMsIG5vZGUpIHsKPiAgCQlSQl9DTEVBUl9OT0RFKCZ3YWl0 LT5ub2RlKTsKPiAtCQlpZiAod2FrZV91cF9wcm9jZXNzKHdhaXQtPnRzaykgJiYgd2FpdCA9PSBm aXJzdCkKPiArCQlpZiAoX193YWtlX3VwX3NsZWVwZXIod2FpdC0+dHNrKSAmJiB3YWl0ID09IGZp cnN0KQo+ICAJCQltaXNzZWRfYnJlYWRjcnVtYihlbmdpbmUpOwo+ICAJfQo+ICAJYi0+d2FpdGVy cyA9IFJCX1JPT1Q7Cj4KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Au b3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwt Z2Z4Cg==