From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Subject: Re: [PATCH 01/10] drm/i915: Add support for mapping an
 object page by page
Date: Thu, 11 Feb 2016 10:50:49 +0000
Message-ID: <56BC6789.3080007@linux.intel.com>
References: <1454578211-24823-1-git-send-email-ankitprasad.r.sharma@intel.com>
 <1454578211-24823-2-git-send-email-ankitprasad.r.sharma@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mga11.intel.com (mga11.intel.com [192.55.52.93])
 by gabe.freedesktop.org (Postfix) with ESMTP id 867216E824
 for <intel-gfx@lists.freedesktop.org>; Thu, 11 Feb 2016 02:50:51 -0800 (PST)
In-Reply-To: <1454578211-24823-2-git-send-email-ankitprasad.r.sharma@intel.com>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
To: ankitprasad.r.sharma@intel.com, intel-gfx@lists.freedesktop.org
Cc: akash.goel@intel.com, shashidhar.hiremath@intel.com
List-Id: intel-gfx@lists.freedesktop.org

CgpPbiAwNC8wMi8xNiAwOTozMCwgYW5raXRwcmFzYWQuci5zaGFybWFAaW50ZWwuY29tIHdyb3Rl
Ogo+IEZyb206IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVrPgo+Cj4gSW50
cm9kdWNlZCBhIG5ldyB2bSBzcGVjZmljIGNhbGxiYWNrIGluc2VydF9wYWdlKCkgdG8gcHJvZ3Jh
bSBhIHNpbmdsZSBwdGUgaW4KPiBnZ3R0IG9yIHBwZ3R0LiBUaGlzIGFsbG93cyB1cyB0byBtYXAg
YSBzaW5nbGUgcGFnZSBpbiB0byB0aGUgbWFwcGFibGUgYXBlcnR1cmUKPiBzcGFjZS4gVGhpcyBj
YW4gYmUgaXRlcmF0ZWQgb3ZlciB0byBhY2Nlc3MgdGhlIHdob2xlIG9iamVjdCBieSB1c2luZyBz
cGFjZSBhcwo+IG1lYWdyZSBhcyBwYWdlIHNpemUuCj4KPiB2MjogQWRkZWQgbG93IGxldmVsIHJw
bSBhc3NlcnRpb25zIHRvIGluc2VydF9wYWdlIHJvdXRpbmVzIChDaHJpcykKPgo+IFNpZ25lZC1v
ZmYtYnk6IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVrPgo+IFNpZ25lZC1v
ZmYtYnk6IEFua2l0cHJhc2FkIFNoYXJtYSA8YW5raXRwcmFzYWQuci5zaGFybWFAaW50ZWwuY29t
Pgo+IC0tLQo+ICAgZHJpdmVycy9jaGFyL2FncC9pbnRlbC1ndHQuYyAgICAgICAgfCAgOSArKysr
Kwo+ICAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fZ3R0LmMgfCA2NSArKysrKysrKysr
KysrKysrKysrKysrKysrKysrKysrKysrKysrCj4gICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1
X2dlbV9ndHQuaCB8ICA1ICsrKwo+ICAgaW5jbHVkZS9kcm0vaW50ZWwtZ3R0LmggICAgICAgICAg
ICAgfCAgMyArKwo+ICAgNCBmaWxlcyBjaGFuZ2VkLCA4MiBpbnNlcnRpb25zKCspCj4KPiBkaWZm
IC0tZ2l0IGEvZHJpdmVycy9jaGFyL2FncC9pbnRlbC1ndHQuYyBiL2RyaXZlcnMvY2hhci9hZ3Av
aW50ZWwtZ3R0LmMKPiBpbmRleCAxMzQxYTk0Li43YzY4NTc2IDEwMDY0NAo+IC0tLSBhL2RyaXZl
cnMvY2hhci9hZ3AvaW50ZWwtZ3R0LmMKPiArKysgYi9kcml2ZXJzL2NoYXIvYWdwL2ludGVsLWd0
dC5jCj4gQEAgLTgzOCw2ICs4MzgsMTUgQEAgc3RhdGljIGJvb2wgaTgzMF9jaGVja19mbGFncyh1
bnNpZ25lZCBpbnQgZmxhZ3MpCj4gICAJcmV0dXJuIGZhbHNlOwo+ICAgfQo+Cj4gK3ZvaWQgaW50
ZWxfZ3R0X2luc2VydF9wYWdlKGRtYV9hZGRyX3QgYWRkciwKPiArCQkJICAgdW5zaWduZWQgaW50
IHBnLAo+ICsJCQkgICB1bnNpZ25lZCBpbnQgZmxhZ3MpCj4gK3sKPiArCWludGVsX3ByaXZhdGUu
ZHJpdmVyLT53cml0ZV9lbnRyeShhZGRyLCBwZywgZmxhZ3MpOwo+ICsJd21iKCk7Cj4gK30KPiAr
RVhQT1JUX1NZTUJPTChpbnRlbF9ndHRfaW5zZXJ0X3BhZ2UpOwo+ICsKPiAgIHZvaWQgaW50ZWxf
Z3R0X2luc2VydF9zZ19lbnRyaWVzKHN0cnVjdCBzZ190YWJsZSAqc3QsCj4gICAJCQkJIHVuc2ln
bmVkIGludCBwZ19zdGFydCwKPiAgIAkJCQkgdW5zaWduZWQgaW50IGZsYWdzKQo+IGRpZmYgLS1n
aXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbV9ndHQuYyBiL2RyaXZlcnMvZ3B1L2Ry
bS9pOTE1L2k5MTVfZ2VtX2d0dC5jCj4gaW5kZXggNzE1YTc3MS4uYTY0MDE4ZiAxMDA2NDQKPiAt
LS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbV9ndHQuYwo+ICsrKyBiL2RyaXZlcnMv
Z3B1L2RybS9pOTE1L2k5MTVfZ2VtX2d0dC5jCj4gQEAgLTIzNDEsNiArMjM0MSwyOCBAQCBzdGF0
aWMgdm9pZCBnZW44X3NldF9wdGUodm9pZCBfX2lvbWVtICphZGRyLCBnZW44X3B0ZV90IHB0ZSkK
PiAgICNlbmRpZgo+ICAgfQo+Cj4gK3N0YXRpYyB2b2lkIGdlbjhfZ2d0dF9pbnNlcnRfcGFnZShz
dHJ1Y3QgaTkxNV9hZGRyZXNzX3NwYWNlICp2bSwKPiArCQkJCSAgZG1hX2FkZHJfdCBhZGRyLAo+
ICsJCQkJICB1aW50NjRfdCBvZmZzZXQsCj4gKwkJCQkgIGVudW0gaTkxNV9jYWNoZV9sZXZlbCBs
ZXZlbCwKPiArCQkJCSAgdTMyIHVudXNlZCkKPiArewo+ICsJc3RydWN0IGRybV9pOTE1X3ByaXZh
dGUgKmRldl9wcml2ID0gdG9faTkxNSh2bS0+ZGV2KTsKPiArCWdlbjhfcHRlX3QgX19pb21lbSAq
cHRlID0KPiArCQkoZ2VuOF9wdGVfdCBfX2lvbWVtICopZGV2X3ByaXYtPmd0dC5nc20gKwo+ICsJ
CShvZmZzZXQgPj4gUEFHRV9TSElGVCk7Cj4gKwlpbnQgcnBtX2F0b21pY19zZXE7Cj4gKwo+ICsJ
cnBtX2F0b21pY19zZXEgPSBhc3NlcnRfcnBtX2F0b21pY19iZWdpbihkZXZfcHJpdik7Cj4gKwo+
ICsJZ2VuOF9zZXRfcHRlKHB0ZSwgZ2VuOF9wdGVfZW5jb2RlKGFkZHIsIGxldmVsLCB0cnVlKSk7
Cj4gKwl3bWIoKTsKCmdlbjhfZ2d0dF9pbnNlcnRfZW50cmllcyBkb2VzIGEgcmVhZC1iYWNrIG9m
IHRoZSBQVEUgYWZ0ZXIgaGF2aW5nIAp3cml0dGVuIGl0IHdpdGggYSBiaWcgZmF0IGNvbW1lbnQg
dGFsa2luZyBhYm91dCBob3cgdGhhdCBjb3VsZCBiZSByZWFsbHkgCmltcG9ydGFudC4gVGhpcyBp
cyBub3QgbmVlZGVkIGluIHRoaXMgcGF0aD8KCj4gKwo+ICsJSTkxNV9XUklURShHRlhfRkxTSF9D
TlRMX0dFTjYsIEdGWF9GTFNIX0NOVExfRU4pOwoKV2h5IGlzIHRoZSBwb3N0aW5nIHJlYWQgbm90
IHJlcXVpcmVkIGhlcmUgYXMgaW4gZ2VuOF9nZ3R0X2luc2VydF9lbnRyaWVzPwoKPiArCj4gKwlh
c3NlcnRfcnBtX2F0b21pY19lbmQoZGV2X3ByaXYsIHJwbV9hdG9taWNfc2VxKTsKPiArfQo+ICsK
PiAgIHN0YXRpYyB2b2lkIGdlbjhfZ2d0dF9pbnNlcnRfZW50cmllcyhzdHJ1Y3QgaTkxNV9hZGRy
ZXNzX3NwYWNlICp2bSwKPiAgIAkJCQkgICAgIHN0cnVjdCBzZ190YWJsZSAqc3QsCj4gICAJCQkJ
ICAgICB1aW50NjRfdCBzdGFydCwKPiBAQCAtMjQxMiw2ICsyNDM0LDI4IEBAIHN0YXRpYyB2b2lk
IGdlbjhfZ2d0dF9pbnNlcnRfZW50cmllc19fQktMKHN0cnVjdCBpOTE1X2FkZHJlc3Nfc3BhY2Ug
KnZtLAo+ICAgCXN0b3BfbWFjaGluZShnZW44X2dndHRfaW5zZXJ0X2VudHJpZXNfX2NiLCAmYXJn
LCBOVUxMKTsKPiAgIH0KPgo+ICtzdGF0aWMgdm9pZCBnZW42X2dndHRfaW5zZXJ0X3BhZ2Uoc3Ry
dWN0IGk5MTVfYWRkcmVzc19zcGFjZSAqdm0sCj4gKwkJCQkgIGRtYV9hZGRyX3QgYWRkciwKPiAr
CQkJCSAgdWludDY0X3Qgb2Zmc2V0LAo+ICsJCQkJICBlbnVtIGk5MTVfY2FjaGVfbGV2ZWwgbGV2
ZWwsCj4gKwkJCQkgIHUzMiBmbGFncykKPiArewo+ICsJc3RydWN0IGRybV9pOTE1X3ByaXZhdGUg
KmRldl9wcml2ID0gdG9faTkxNSh2bS0+ZGV2KTsKPiArCWdlbjZfcHRlX3QgX19pb21lbSAqcHRl
ID0KPiArCQkoZ2VuNl9wdGVfdCBfX2lvbWVtICopZGV2X3ByaXYtPmd0dC5nc20gKwo+ICsJCShv
ZmZzZXQgPj4gUEFHRV9TSElGVCk7Cj4gKwlpbnQgcnBtX2F0b21pY19zZXE7Cj4gKwo+ICsJcnBt
X2F0b21pY19zZXEgPSBhc3NlcnRfcnBtX2F0b21pY19iZWdpbihkZXZfcHJpdik7Cj4gKwo+ICsJ
aW93cml0ZTMyKHZtLT5wdGVfZW5jb2RlKGFkZHIsIGxldmVsLCB0cnVlLCBmbGFncyksIHB0ZSk7
Cj4gKwl3bWIoKTsKPiArCj4gKwlJOTE1X1dSSVRFKEdGWF9GTFNIX0NOVExfR0VONiwgR0ZYX0ZM
U0hfQ05UTF9FTik7Cj4gKwo+ICsJYXNzZXJ0X3JwbV9hdG9taWNfZW5kKGRldl9wcml2LCBycG1f
YXRvbWljX3NlcSk7Cj4gK30KClNhbWUgcXVlc3Rpb25zIGFzIGZvciB0aGUgZ2VuOCB2ZXJzaW9u
LgoKUmVnYXJkcywKClR2cnRrbwpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f
X19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVz
a3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9p
bnRlbC1nZngK