From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: Re: [PATCH v2 5/5] drm/i915: Use partial view in mmap fault handler Date: Thu, 30 Apr 2015 13:32:21 +0100 Message-ID: <554220D5.6000307@linux.intel.com> References: <1430392887.1189.10.camel@jlahtine-mobl1> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTP id B6CD26E7FC for ; Thu, 30 Apr 2015 05:32:23 -0700 (PDT) In-Reply-To: <1430392887.1189.10.camel@jlahtine-mobl1> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Joonas Lahtinen , intel-gfx List-Id: intel-gfx@lists.freedesktop.org Ck9uIDA0LzMwLzIwMTUgMTI6MjEgUE0sIEpvb25hcyBMYWh0aW5lbiB3cm90ZToKPgo+IFVzZSBw YXJ0aWFsIHZpZXcgZm9yIGh1Z2UgQk9zIChiaWdnZXIgdGhhbiB0aGUgbWFwcGFibGUgYXBlcnR1 cmUpCj4gaW4gZmF1bHQgaGFuZGxlciBzbyB0aGF0IHRoZXkgY2FuIGJlIGFjY2Vzc2VkIHdpdGhv dXQgdHJ5aW5nIHRvIG1ha2UKPiByb29tIGZvciB0aGVtIGJ5IGV2aWN0aW5nIG90aGVyIG9iamVj dHMuCj4KPiB2MjoKPiAtIE9ubHkgdXNlIHBhcnRpYWwgdmlld3MgaW4gdGhlIGNhc2Ugd2hlcmUg ZWFybHkgcmVqZWN0aW9uIHdhcwo+ICAgIHByZXZpb3VzbHkgZG9uZS4KPiAtIEFjY291bnQgdmFy aWFibGUgdHlwZSBjaGFuZ2VzIGZyb20gcHJldmlvdXMgcmVyb2xsLgo+Cj4gQ2M6IENocmlzIFdp bHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVrPgo+IFNpZ25lZC1vZmYtYnk6IEpvb25hcyBM YWh0aW5lbiA8am9vbmFzLmxhaHRpbmVuQGxpbnV4LmludGVsLmNvbT4KPiAtLS0KPiAgIGRyaXZl cnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtLmMgfCA2OSArKysrKysrKysrKysrKysrKysrKysrKysr KystLS0tLS0tLS0tLS0tLQo+ICAgMSBmaWxlIGNoYW5nZWQsIDQ2IGluc2VydGlvbnMoKyksIDIz IGRlbGV0aW9ucygtKQo+Cj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVf Z2VtLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbS5jCj4gaW5kZXggYTAyMDgzNi4u MmYzZmEwYiAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbS5jCj4g KysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW0uYwo+IEBAIC0xNjM1LDYgKzE2MzUs NyBAQCBpbnQgaTkxNV9nZW1fZmF1bHQoc3RydWN0IHZtX2FyZWFfc3RydWN0ICp2bWEsIHN0cnVj dCB2bV9mYXVsdCAqdm1mKQo+ICAgCXN0cnVjdCBkcm1faTkxNV9nZW1fb2JqZWN0ICpvYmogPSB0 b19pbnRlbF9ibyh2bWEtPnZtX3ByaXZhdGVfZGF0YSk7Cj4gICAJc3RydWN0IGRybV9kZXZpY2Ug KmRldiA9IG9iai0+YmFzZS5kZXY7Cj4gICAJc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9w cml2ID0gZGV2LT5kZXZfcHJpdmF0ZTsKPiArCXN0cnVjdCBpOTE1X2dndHRfdmlldyB2aWV3ID0g aTkxNV9nZ3R0X3ZpZXdfbm9ybWFsOwo+ICAgCXBnb2ZmX3QgcGFnZV9vZmZzZXQ7Cj4gICAJdW5z aWduZWQgbG9uZyBwZm47Cj4gICAJaW50IHJldCA9IDA7Cj4gQEAgLTE2NjcsOCArMTY2OCwyMSBA QCBpbnQgaTkxNV9nZW1fZmF1bHQoc3RydWN0IHZtX2FyZWFfc3RydWN0ICp2bWEsIHN0cnVjdCB2 bV9mYXVsdCAqdm1mKQo+ICAgCQlnb3RvIHVubG9jazsKPiAgIAl9Cj4KPiAtCS8qIE5vdyBiaW5k IGl0IGludG8gdGhlIEdUVCBpZiBuZWVkZWQgKi8KPiAtCXJldCA9IGk5MTVfZ2VtX29ial9nZ3R0 X3BpbihvYmosIDAsIFBJTl9NQVBQQUJMRSk7Cj4gKwkvKiBVc2UgYSBwYXJ0aWFsIHZpZXcgaWYg dGhlIG9iamVjdCBpcyBiaWdnZXIgdGhhbiB0aGUgYXBlcnR1cmUuICovCj4gKwlpZiAob2JqLT5i YXNlLnNpemUgPj0gZGV2X3ByaXYtPmd0dC5tYXBwYWJsZV9lbmQpIHsKPiArCQlzdGF0aWMgY29u c3QgdW5zaWduZWQgaW50IGNodW5rX3NpemUgPSAyNTY7IC8vIDEgTWlCCj4gKwkJbWVtc2V0KCZ2 aWV3LCAwLCBzaXplb2YodmlldykpOwoKSSB0aGluayB5b3UgZG9uJ3QgbmVlZCB0byBtZW1zZXQg c2luY2UgeW91IGFzc2lnbmVkIG5vcm1hbCB2aWV3IHRvIGl0LgoKPiArCQl2aWV3LnR5cGUgPSBJ OTE1X0dHVFRfVklFV19QQVJUSUFMOwo+ICsJCXZpZXcucGFyYW1zLnBhcnRpYWwub2Zmc2V0ID0g cm91bmRkb3duKHBhZ2Vfb2Zmc2V0LCBjaHVua19zaXplKTsKPiArCQl2aWV3LnBhcmFtcy5wYXJ0 aWFsLnNpemUgPQo+ICsJCQltaW5fdCh1bnNpZ25lZCBpbnQsCj4gKwkJCSAgICAgIGNodW5rX3Np emUsCj4gKwkJCSAgICAgICh2bWEtPnZtX2VuZCAtIHZtYS0+dm1fc3RhcnQpL1BBR0VfU0laRSAt Cj4gKwkJCSAgICAgIHZpZXcucGFyYW1zLnBhcnRpYWwub2Zmc2V0KTsKPiArCX0KPiArCj4gKwkv KiBOb3cgcGluIGl0IGludG8gdGhlIEdUVCBpZiBuZWVkZWQgKi8KPiArCXJldCA9IGk5MTVfZ2Vt X29iamVjdF9nZ3R0X3BpbihvYmosICZ2aWV3LCAwLCBQSU5fTUFQUEFCTEUpOwoKTmV4dCBmYXVs dCBvdXRzaWRlIHRoaXMgcGFydGlhbCB2aWV3IHdpbGwgY3JlYXRlIGEgbmV3IHZtYT8gSXMgdGhl cmUgCnNvbWV0aGluZyB3aGljaCB3b3VsZCByZW1vdmUgdGhlIG9sZCBvbmUgZm9yIHRoYXQgY2Fz ZT8gT3IgdGhleSBhcmUganVzdCAKYWxsb3dlZCB0byBhY2N1bXVsYXRlPwoKUmVnYXJkcywKClR2 cnRrbwpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRl bC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDov L2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=