From mboxrd@z Thu Jan 1 00:00:00 1970 From: Joonas Lahtinen Subject: Re: [PATCH 02/16] drm/i915: Convert non-blocking waits for requests over to using RCU Date: Wed, 03 Aug 2016 16:23:16 +0300 Message-ID: <1470230596.3860.20.camel@linux.intel.com> References: <1470075758-13871-1-git-send-email-chris@chris-wilson.co.uk> <1470075758-13871-3-git-send-email-chris@chris-wilson.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 8C7136E7C0 for ; Wed, 3 Aug 2016 13:23:40 +0000 (UTC) In-Reply-To: <1470075758-13871-3-git-send-email-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 T24gbWEsIDIwMTYtMDgtMDEgYXQgMTk6MjIgKzAxMDAsIENocmlzIFdpbHNvbiB3cm90ZToKPiAt CWlmICghb2JqKSB7Cj4gLQkJcmV0ID0gLUVOT0VOVDsKPiAtCQlnb3RvIHVubG9jazsKPiAtCX0K PiArCWlmICghb2JqKQo+ICsJCXJldHVybiAtRU5PRU5UOwo+IMKgCj4gwqAJLyogVHJ5IHRvIGZs dXNoIHRoZSBvYmplY3Qgb2ZmIHRoZSBHUFUgd2l0aG91dCBob2xkaW5nIHRoZSBsb2NrLgo+IMKg CcKgKiBXZSB3aWxsIHJlcGVhdCB0aGUgZmx1c2ggaG9sZGluZyB0aGUgbG9jayBpbiB0aGUgbm9y bWFsIG1hbm5lcgo+IMKgCcKgKiB0byBjYXRjaCBjYXNlcyB3aGVyZSB3ZSBhcmUgZ2F6dW1wZWQu Cj4gwqAJwqAqLwo+IC0JcmV0ID0gaTkxNV9nZW1fb2JqZWN0X3dhaXRfcmVuZGVyaW5nX19ub25i bG9ja2luZyhvYmosCj4gLQkJCQkJCQnCoMKgdG9fcnBzX2NsaWVudChmaWxlKSwKPiAtCQkJCQkJ CcKgwqAhd3JpdGVfZG9tYWluKTsKPiArCXJldCA9IF9fdW5zYWZlX3dhaXRfcmVuZGVyaW5nKG9i aiwgdG9fcnBzX2NsaWVudChmaWxlKSwgIXdyaXRlX2RvbWFpbik7Cj4gwqAJaWYgKHJldCkKPiAt CQlnb3RvIHVucmVmOwo+ICsJCWdvdG8gb3V0X3VubG9ja2VkOwo+ICsKPiArCXJldCA9IGk5MTVf bXV0ZXhfbG9ja19pbnRlcnJ1cHRpYmxlKGRldik7Cj4gKwlpZiAocmV0KQo+ICsJCWdvdG8gb3V0 X3VubG9ja2VkOwo+IMKgCj4gwqAJaWYgKHJlYWRfZG9tYWlucyAmIEk5MTVfR0VNX0RPTUFJTl9H VFQpCj4gwqAJCXJldCA9IGk5MTVfZ2VtX29iamVjdF9zZXRfdG9fZ3R0X2RvbWFpbihvYmosIHdy aXRlX2RvbWFpbiAhPSAwKTsKPiBAQCAtMTUwMSwxMSArMTQ4MSwxMyBAQCBpOTE1X2dlbV9zZXRf ZG9tYWluX2lvY3RsKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYsIHZvaWQgKmRhdGEsCj4gwqAJaWYg KHdyaXRlX2RvbWFpbiAhPSAwKQo+IMKgCQlpbnRlbF9mYl9vYmpfaW52YWxpZGF0ZShvYmosIHdy aXRlX29yaWdpbihvYmosIHdyaXRlX2RvbWFpbikpOwo+IMKgCj4gLXVucmVmOgo+IMKgCWk5MTVf Z2VtX29iamVjdF9wdXQob2JqKTsKPiAtdW5sb2NrOgo+IMKgCW11dGV4X3VubG9jaygmZGV2LT5z dHJ1Y3RfbXV0ZXgpOwo+IMKgCXJldHVybiByZXQ7Cj4gKwo+ICtvdXRfdW5sb2NrZWQ6CgpUaGlz IGlzIHRoZSBzb2xlIGxhYmVsLCB5b3UgY291bGQgY2FsbCAnZXJyJyB0b28uCgo+ICsJaTkxNV9n ZW1fb2JqZWN0X3B1dF91bmxvY2tlZChvYmopOwo+ICsJcmV0dXJuIHJldDsKPiDCoH0KPiDCoAo+ IMKgLyoqCj4gQEAgLTE2NDcsNiArMTYyOSwxNSBAQCBpbnQgaTkxNV9nZW1fZmF1bHQoc3RydWN0 IHZtX2FyZWFfc3RydWN0ICp2bWEsIHN0cnVjdCB2bV9mYXVsdCAqdm1mKQo+IMKgCWludCByZXQg PSAwOwo+IMKgCWJvb2wgd3JpdGUgPSAhISh2bWYtPmZsYWdzICYgRkFVTFRfRkxBR19XUklURSk7 Cj4gwqAKPiArCS8qIFRyeSB0byBmbHVzaCB0aGUgb2JqZWN0IG9mZiB0aGUgR1BVIGZpcnN0IHdp dGhvdXQgaG9sZGluZyB0aGUgbG9jay4KPiArCcKgKiBVcG9uIGFjcXVpcmluZyB0aGUgbG9jaywg d2Ugd2lsbCBwZXJmb3JtIG91ciBzYW5pdHkgY2hlY2tzIGFuZCB0aGVuCj4gKwnCoCogcmVwZWF0 IHRoZSBmbHVzaCBob2xkaW5nIHRoZSBsb2NrIGluIHRoZSBub3JtYWwgbWFubmVyIHRvIGNhdGNo IGNhc2VzCj4gKwnCoCogd2hlcmUgd2UgYXJlIGdhenVtcGVkLgo+ICsJwqAqLwo+ICsJcmV0ID0g X191bnNhZmVfd2FpdF9yZW5kZXJpbmcob2JqLCBOVUxMLCAhd3JpdGUpOwo+ICsJaWYgKHJldCkK PiArCQlnb3RvIGVycjsKPiArCgpXaHkgZG8geW91IGxpZnQgdGhpcyBjYWxsIHN1cGVyIGVhcmx5 LCB0cmFjaW5nIHdpbGwgYmUgYWZmZWN0ZWQgYXQKbGVhc3QuCgo+IMKgCWludGVsX3J1bnRpbWVf cG1fZ2V0KGRldl9wcml2KTsKPiDCoAo+IMKgCS8qIFdlIGRvbid0IHVzZSB2bWYtPnBnb2ZmIHNp bmNlIHRoYXQgaGFzIHRoZSBmYWtlIG9mZnNldCAqLwo+IEBAIC0xNjU1LDIzICsxNjQ2LDE0IEBA IGludCBpOTE1X2dlbV9mYXVsdChzdHJ1Y3Qgdm1fYXJlYV9zdHJ1Y3QgKnZtYSwgc3RydWN0IHZt X2ZhdWx0ICp2bWYpCj4gwqAKPiDCoAlyZXQgPSBpOTE1X211dGV4X2xvY2tfaW50ZXJydXB0aWJs ZShkZXYpOwo+IMKgCWlmIChyZXQpCj4gLQkJZ290byBvdXQ7Cj4gKwkJZ290byBlcnJfcnBtOwo+ IMKgCj4gwqAJdHJhY2VfaTkxNV9nZW1fb2JqZWN0X2ZhdWx0KG9iaiwgcGFnZV9vZmZzZXQsIHRy dWUsIHdyaXRlKTsKPiDCoAo+IC0JLyogVHJ5IHRvIGZsdXNoIHRoZSBvYmplY3Qgb2ZmIHRoZSBH UFUgZmlyc3Qgd2l0aG91dCBob2xkaW5nIHRoZSBsb2NrLgo+IC0JwqAqIFVwb24gcmVhY3F1aXJp bmcgdGhlIGxvY2ssIHdlIHdpbGwgcGVyZm9ybSBvdXIgc2FuaXR5IGNoZWNrcyBhbmQgdGhlbgo+ IC0JwqAqIHJlcGVhdCB0aGUgZmx1c2ggaG9sZGluZyB0aGUgbG9jayBpbiB0aGUgbm9ybWFsIG1h bm5lciB0byBjYXRjaCBjYXNlcwo+IC0JwqAqIHdoZXJlIHdlIGFyZSBnYXp1bXBlZC4KPiAtCcKg Ki8KPiAtCXJldCA9IGk5MTVfZ2VtX29iamVjdF93YWl0X3JlbmRlcmluZ19fbm9uYmxvY2tpbmco b2JqLCBOVUxMLCAhd3JpdGUpOwo+IC0JaWYgKHJldCkKPiAtCQlnb3RvIHVubG9jazsKPiAtCj4g wqAJLyogQWNjZXNzIHRvIHNub29wYWJsZSBwYWdlcyB0aHJvdWdoIHRoZSBHVFQgaXMgaW5jb2hl cmVudC4gKi8KPiDCoAlpZiAob2JqLT5jYWNoZV9sZXZlbCAhPSBJOTE1X0NBQ0hFX05PTkUgJiYg IUhBU19MTEMoZGV2KSkgewo+IMKgCQlyZXQgPSAtRUZBVUxUOwo+IC0JCWdvdG8gdW5sb2NrOwo+ ICsJCWdvdG8gZXJyX3VubG9jazsKPiDCoAl9Cj4gwqAKPiDCoAkvKiBVc2UgYSBwYXJ0aWFsIHZp ZXcgaWYgdGhlIG9iamVjdCBpcyBiaWdnZXIgdGhhbiB0aGUgYXBlcnR1cmUuICovCi0tIApKb29u YXMgTGFodGluZW4KT3BlbiBTb3VyY2UgVGVjaG5vbG9neSBDZW50ZXIKSW50ZWwgQ29ycG9yYXRp b24KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwt Z2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8v bGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==