From mboxrd@z Thu Jan  1 00:00:00 1970
From: Michel Thierry <michel.thierry@intel.com>
Subject: Re: [PATCH 11/21] drm/i915/gtt: Introduce
	fill_page_dma()
Date: Tue, 02 Jun 2015 15:51:26 +0100
Message-ID: <556DC2EE.2020207@intel.com>
References: <1432314314-23530-1-git-send-email-mika.kuoppala@intel.com>
 <1432314314-23530-12-git-send-email-mika.kuoppala@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 mga02.intel.com (mga02.intel.com [134.134.136.20])
 by gabe.freedesktop.org (Postfix) with ESMTP id CB70B6E877
 for <intel-gfx@lists.freedesktop.org>; Tue,  2 Jun 2015 07:51:29 -0700 (PDT)
In-Reply-To: <1432314314-23530-12-git-send-email-mika.kuoppala@intel.com>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://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: <http://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: Mika Kuoppala <mika.kuoppala@linux.intel.com>, "intel-gfx@lists.freedesktop.org" <intel-gfx@lists.freedesktop.org>
List-Id: intel-gfx@lists.freedesktop.org

T24gNS8yMi8yMDE1IDY6MDUgUE0sIE1pa2EgS3VvcHBhbGEgd3JvdGU6Cj4gV2hlbiB3ZSBzZXR1
cCBwYWdlIGRpcmVjdG9yaWVzIGFuZCB0YWJsZXMsIHdlIHBvaW50IHRoZSBlbnRyaWVzCj4gdG8g
YSB0byB0aGUgbmV4dCBsZXZlbCBzY3JhdGNoIHN0cnVjdHVyZS4gTWFrZSB0aGlzIGdlbmVyaWMK
PiBieSBpbnRyb2R1Y2luZyBhIGZpbGxfcGFnZV9kbWEgd2hpY2ggbWFwcyBhbmQgZmx1c2hlcy4g
V2UgYWxzbwo+IG5lZWQgMzIgYml0IHZhcmlhbnQgZm9yIGxlZ2FjeSBnZW5zLgo+Cj4gdjI6IEZp
eCBmbHVzaGVzIGFuZCBoYW5kbGUgdmFsbGV5dmlldyAoVmlsbGUpCj4KPiBTaWduZWQtb2ZmLWJ5
OiBNaWthIEt1b3BwYWxhIDxtaWthLmt1b3BwYWxhQGludGVsLmNvbT4KPiAtLS0KPiAgIGRyaXZl
cnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtX2d0dC5jIHwgNzEgKysrKysrKysrKysrKysrKysrKy0t
LS0tLS0tLS0tLS0tLS0tLQo+ICAgMSBmaWxlIGNoYW5nZWQsIDM3IGluc2VydGlvbnMoKyksIDM0
IGRlbGV0aW9ucygtKQo+Cj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVf
Z2VtX2d0dC5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fZ3R0LmMKPiBpbmRleCBm
NzQ3YmQzLi5kMDIwYjVlIDEwMDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVf
Z2VtX2d0dC5jCj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fZ3R0LmMKPiBA
QCAtMzMwLDYgKzMzMCwzMSBAQCBzdGF0aWMgdm9pZCBjbGVhbnVwX3BhZ2VfZG1hKHN0cnVjdCBk
cm1fZGV2aWNlICpkZXYsIHN0cnVjdCBpOTE1X3BhZ2VfZG1hICpwKQo+ICAgICAgICAgIG1lbXNl
dChwLCAwLCBzaXplb2YoKnApKTsKPiAgIH0KPgo+ICtzdGF0aWMgdm9pZCBmaWxsX3BhZ2VfZG1h
KHN0cnVjdCBkcm1fZGV2aWNlICpkZXYsIHN0cnVjdCBpOTE1X3BhZ2VfZG1hICpwLAo+ICsgICAg
ICAgICAgICAgICAgICAgICAgICAgY29uc3QgdWludDY0X3QgdmFsKQo+ICt7Cj4gKyAgICAgICBp
bnQgaTsKPiArICAgICAgIHVpbnQ2NF90ICogY29uc3QgdmFkZHIgPSBrbWFwX2F0b21pYyhwLT5w
YWdlKTsKPiArCj4gKyAgICAgICBmb3IgKGkgPSAwOyBpIDwgNTEyOyBpKyspCj4gKyAgICAgICAg
ICAgICAgIHZhZGRyW2ldID0gdmFsOwo+ICsKPiArICAgICAgIGlmICghSEFTX0xMQyhkZXYpICYm
ICFJU19WQUxMRVlWSUVXKGRldikpCj4gKyAgICAgICAgICAgICAgIGRybV9jbGZsdXNoX3ZpcnRf
cmFuZ2UodmFkZHIsIFBBR0VfU0laRSk7CgpDaGVycnl2aWV3IHJldHVybnMgdHJ1ZSB0byBJU19W
QUxMRVlWSUVXKCkuCgpZb3UgY2FuIHVzZSghSEFTX0xMQyAmJiBJU19DSEVSUllWSUVXKSBpbnN0
ZWFkIHRvIGZsdXNoIGluIGNodiwgYnV0IG5vdCAKaW4gdmx2Li4uIEJ1dCB0byBtYWtlIGl0IGJ4
dC1wcm9vZiwgKCFIQVNfTExDICYmIElOVEVMX0lORk8oZGV2KS0+Z2VuID49IAo4KSBpcyBwcm9i
YWJseSBiZXR0ZXIuCgo+ICsKPiArICAgICAgIGt1bm1hcF9hdG9taWModmFkZHIpOwo+ICt9Cj4g
Kwo+ICtzdGF0aWMgdm9pZCBmaWxsX3BhZ2VfZG1hXzMyKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYs
IHN0cnVjdCBpOTE1X3BhZ2VfZG1hICpwLAo+ICsgICAgICAgICAgICAgICAgICAgICAgICAgICAg
Y29uc3QgdWludDMyX3QgdmFsMzIpCj4gK3sKPiArICAgICAgIHVpbnQ2NF90IHYgPSB2YWwzMjsK
PiArCj4gKyAgICAgICB2ID0gdiA8PCAzMiB8IHZhbDMyOwo+ICsKPiArICAgICAgIGZpbGxfcGFn
ZV9kbWEoZGV2LCBwLCB2KTsKPiArfQo+ICsKPiAgIHN0YXRpYyB2b2lkIGZyZWVfcHQoc3RydWN0
IGRybV9kZXZpY2UgKmRldiwgc3RydWN0IGk5MTVfcGFnZV90YWJsZSAqcHQpCj4gICB7Cj4gICAg
ICAgICAgY2xlYW51cF9wYWdlX2RtYShkZXYsICZwdC0+YmFzZSk7Cj4gQEAgLTM0MCwxOSArMzY1
LDExIEBAIHN0YXRpYyB2b2lkIGZyZWVfcHQoc3RydWN0IGRybV9kZXZpY2UgKmRldiwgc3RydWN0
IGk5MTVfcGFnZV90YWJsZSAqcHQpCj4gICBzdGF0aWMgdm9pZCBnZW44X2luaXRpYWxpemVfcHQo
c3RydWN0IGk5MTVfYWRkcmVzc19zcGFjZSAqdm0sCj4gICAgICAgICAgICAgICAgICAgICAgICAg
ICAgICAgICBzdHJ1Y3QgaTkxNV9wYWdlX3RhYmxlICpwdCkKPiAgIHsKPiAtICAgICAgIGdlbjhf
cHRlX3QgKnB0X3ZhZGRyLCBzY3JhdGNoX3B0ZTsKPiAtICAgICAgIGludCBpOwo+IC0KPiAtICAg
ICAgIHB0X3ZhZGRyID0ga21hcF9hdG9taWMocHQtPmJhc2UucGFnZSk7Cj4gLSAgICAgICBzY3Jh
dGNoX3B0ZSA9IGdlbjhfcHRlX2VuY29kZSh2bS0+c2NyYXRjaC5hZGRyLAo+IC0gICAgICAgICAg
ICAgICAgICAgICAgICAgICAgICAgICAgICAgSTkxNV9DQUNIRV9MTEMsIHRydWUpOwo+ICsgICAg
ICAgZ2VuOF9wdGVfdCBzY3JhdGNoX3B0ZTsKPgo+IC0gICAgICAgZm9yIChpID0gMDsgaSA8IEdF
TjhfUFRFUzsgaSsrKQo+IC0gICAgICAgICAgICAgICBwdF92YWRkcltpXSA9IHNjcmF0Y2hfcHRl
Owo+ICsgICAgICAgc2NyYXRjaF9wdGUgPSBnZW44X3B0ZV9lbmNvZGUodm0tPnNjcmF0Y2guYWRk
ciwgSTkxNV9DQUNIRV9MTEMsIHRydWUpOwo+Cj4gLSAgICAgICBpZiAoIUhBU19MTEModm0tPmRl
dikpCj4gLSAgICAgICAgICAgICAgIGRybV9jbGZsdXNoX3ZpcnRfcmFuZ2UocHRfdmFkZHIsIFBB
R0VfU0laRSk7Cj4gLSAgICAgICBrdW5tYXBfYXRvbWljKHB0X3ZhZGRyKTsKPiArICAgICAgIGZp
bGxfcGFnZV9kbWEodm0tPmRldiwgJnB0LT5iYXNlLCBzY3JhdGNoX3B0ZSk7Cj4gICB9Cj4KPiAg
IHN0YXRpYyBzdHJ1Y3QgaTkxNV9wYWdlX3RhYmxlICphbGxvY19wdChzdHJ1Y3QgZHJtX2Rldmlj
ZSAqZGV2KQo+IEBAIC01ODUsMjAgKzYwMiwxMyBAQCBzdGF0aWMgdm9pZCBnZW44X2luaXRpYWxp
emVfcGQoc3RydWN0IGk5MTVfYWRkcmVzc19zcGFjZSAqdm0sCj4gICAgICAgICAgICAgICAgICAg
ICAgICAgICAgICAgICBzdHJ1Y3QgaTkxNV9wYWdlX2RpcmVjdG9yeSAqcGQpCj4gICB7Cj4gICAg
ICAgICAgc3RydWN0IGk5MTVfaHdfcHBndHQgKnBwZ3R0ID0KPiAtICAgICAgICAgICAgICAgICAg
ICAgICBjb250YWluZXJfb2Yodm0sIHN0cnVjdCBpOTE1X2h3X3BwZ3R0LCBiYXNlKTsKPiAtICAg
ICAgIGdlbjhfcGRlX3QgKnBhZ2VfZGlyZWN0b3J5Owo+IC0gICAgICAgc3RydWN0IGk5MTVfcGFn
ZV90YWJsZSAqcHQ7Cj4gLSAgICAgICBpbnQgaTsKPiArICAgICAgICAgICAgICAgY29udGFpbmVy
X29mKHZtLCBzdHJ1Y3QgaTkxNV9od19wcGd0dCwgYmFzZSk7Cj4gKyAgICAgICBnZW44X3BkZV90
IHNjcmF0Y2hfcGRlOwo+Cj4gLSAgICAgICBwYWdlX2RpcmVjdG9yeSA9IGttYXBfYXRvbWljKHBk
LT5iYXNlLnBhZ2UpOwo+IC0gICAgICAgcHQgPSBwcGd0dC0+c2NyYXRjaF9wdDsKPiAtICAgICAg
IGZvciAoaSA9IDA7IGkgPCBJOTE1X1BERVM7IGkrKykKPiAtICAgICAgICAgICAgICAgLyogTWFw
IHRoZSBQREUgdG8gdGhlIHBhZ2UgdGFibGUgKi8KPiAtICAgICAgICAgICAgICAgX19nZW44X2Rv
X21hcF9wdChwYWdlX2RpcmVjdG9yeSArIGksIHB0LCB2bS0+ZGV2KTsKPiArICAgICAgIHNjcmF0
Y2hfcGRlID0gZ2VuOF9wZGVfZW5jb2RlKHZtLT5kZXYsIHBwZ3R0LT5zY3JhdGNoX3B0LT5iYXNl
LmRhZGRyLAo+ICsgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgSTkxNV9DQUNI
RV9MTEMpOwo+Cj4gLSAgICAgICBpZiAoIUhBU19MTEModm0tPmRldikpCj4gLSAgICAgICAgICAg
ICAgIGRybV9jbGZsdXNoX3ZpcnRfcmFuZ2UocGFnZV9kaXJlY3RvcnksIFBBR0VfU0laRSk7Cj4g
LSAgICAgICBrdW5tYXBfYXRvbWljKHBhZ2VfZGlyZWN0b3J5KTsKPiArICAgICAgIGZpbGxfcGFn
ZV9kbWEodm0tPmRldiwgJnBkLT5iYXNlLCBzY3JhdGNoX3BkZSk7Cj4gICB9Cj4KPiAgIHN0YXRp
YyB2b2lkIGdlbjhfZnJlZV9wYWdlX3RhYmxlcyhzdHJ1Y3QgaTkxNV9wYWdlX2RpcmVjdG9yeSAq
cGQsIHN0cnVjdCBkcm1fZGV2aWNlICpkZXYpCj4gQEAgLTEyOTIsMjIgKzEzMDIsMTUgQEAgc3Rh
dGljIHZvaWQgZ2VuNl9wcGd0dF9pbnNlcnRfZW50cmllcyhzdHJ1Y3QgaTkxNV9hZGRyZXNzX3Nw
YWNlICp2bSwKPiAgIH0KPgo+ICAgc3RhdGljIHZvaWQgZ2VuNl9pbml0aWFsaXplX3B0KHN0cnVj
dCBpOTE1X2FkZHJlc3Nfc3BhY2UgKnZtLAo+IC0gICAgICAgICAgICAgICBzdHJ1Y3QgaTkxNV9w
YWdlX3RhYmxlICpwdCkKPiArICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgc3RydWN0IGk5
MTVfcGFnZV90YWJsZSAqcHQpCj4gICB7Cj4gLSAgICAgICBnZW42X3B0ZV90ICpwdF92YWRkciwg
c2NyYXRjaF9wdGU7Cj4gLSAgICAgICBpbnQgaTsKPiArICAgICAgIGdlbjZfcHRlX3Qgc2NyYXRj
aF9wdGU7Cj4KPiAgICAgICAgICBXQVJOX09OKHZtLT5zY3JhdGNoLmFkZHIgPT0gMCk7Cj4KPiAt
ICAgICAgIHNjcmF0Y2hfcHRlID0gdm0tPnB0ZV9lbmNvZGUodm0tPnNjcmF0Y2guYWRkciwKPiAt
ICAgICAgICAgICAgICAgICAgICAgICBJOTE1X0NBQ0hFX0xMQywgdHJ1ZSwgMCk7Cj4gLQo+IC0g
ICAgICAgcHRfdmFkZHIgPSBrbWFwX2F0b21pYyhwdC0+YmFzZS5wYWdlKTsKPiAtCj4gLSAgICAg
ICBmb3IgKGkgPSAwOyBpIDwgR0VONl9QVEVTOyBpKyspCj4gLSAgICAgICAgICAgICAgIHB0X3Zh
ZGRyW2ldID0gc2NyYXRjaF9wdGU7Cj4gKyAgICAgICBzY3JhdGNoX3B0ZSA9IHZtLT5wdGVfZW5j
b2RlKHZtLT5zY3JhdGNoLmFkZHIsIEk5MTVfQ0FDSEVfTExDLCB0cnVlLCAwKTsKPgo+IC0gICAg
ICAga3VubWFwX2F0b21pYyhwdF92YWRkcik7Cj4gKyAgICAgICBmaWxsX3BhZ2VfZG1hXzMyKHZt
LT5kZXYsICZwdC0+YmFzZSwgc2NyYXRjaF9wdGUpOwo+ICAgfQo+Cj4gICBzdGF0aWMgaW50IGdl
bjZfYWxsb2NfdmFfcmFuZ2Uoc3RydWN0IGk5MTVfYWRkcmVzc19zcGFjZSAqdm0sCj4gLS0KPiAx
LjkuMQo+Cj4gX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18K
PiBJbnRlbC1nZnggbWFpbGluZyBsaXN0Cj4gSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9y
Zwo+IGh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1n
ZngKPgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRl
bC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDov
L2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=