From mboxrd@z Thu Jan  1 00:00:00 1970
From: CK Hu <ck.hu@mediatek.com>
Subject: Re: [PATCH v1 11/15] drm/mediatek: add dummy buffer for RDMA memory
 mode
Date: Wed, 25 Jul 2018 13:42:59 +0800
Message-ID: <1532497379.9280.32.camel@mtksdaap41>
References: <1532420235-22268-1-git-send-email-stu.hsieh@mediatek.com>
 <1532420235-22268-12-git-send-email-stu.hsieh@mediatek.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dri-devel-bounces@lists.freedesktop.org>
In-Reply-To: <1532420235-22268-12-git-send-email-stu.hsieh@mediatek.com>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
Errors-To: dri-devel-bounces@lists.freedesktop.org
Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
To: Stu Hsieh <stu.hsieh@mediatek.com>
Cc: srv_heupstream@mediatek.com, David Airlie <airlied@linux.ie>, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, Matthias Brugger <matthias.bgg@gmail.com>, linux-arm-kernel@lists.infradead.org
List-Id: linux-mediatek@lists.infradead.org

SGksIFN0dToKCk9uIFR1ZSwgMjAxOC0wNy0yNCBhdCAxNjoxNyArMDgwMCwgU3R1IEhzaWVoIHdy
b3RlOgo+IFRoaXMgcGF0Y2ggYWRkIGR1bW15IGJ1ZmZlciBmb3IgUkRNQSBtZW1vcnkgbW9kZQo+
IAo+IFdoZW4gZGlzcGxheSBwb3dlciBvbiwgdGhlIGRybSBmcmFtZSB3b3JrIHdvdWxkIG1vZGVz
ZXQgYW5kCj4gc2V0IHVwIHRoZSBkaXNwbGF5IEhXLgo+IAo+IEluIHRoaXMgdGltZSwgdGhlIFJE
TUEgd291bGQgc3RhcnQgd3Jva2luZyBhbmQgcmVhZCB0aGUgZGF0YSBmcm9tIG1lbW9yeS4KPiBC
dXQsIHVzZXIgc3BhY2Ugbm90IHNlbmQgdGhlIGRhdGEgdG8gZHJtIHlldC4KPiAKPiBGb3IgdGhp
cyBjYXNlLCBpZiB1c2VyIHNwYWNlIG5vdCBzZW5kIGRhdGEgdG8gZGlzcGxheSBodyhSRE1BKSB5
ZXQsCj4gUkRNQSB3b3VsZCByZWFkIHRoZSB3cm9uZyBhZGRyZXNzIHRvIHNob3cgZ2FyYmFnZS4K
PiAKPiBUaGVyZWZvcmUsIHdlIGNyZWF0ZSBkdW1teSBidWZmZXIgZm9yIFJETUEgcmVhZGluZyBt
ZW1vcnkKPiB3aGVuIHVzZXJzcGFjZSBub3Qgc2VuZCB0aGUgZGF0YSB5ZXQuCj4gCgpJcyB0aGlz
IHRoZSBvbmx5IHNvbHV0aW9uPyBJZiBwYW5lbCByZXNvbHV0aW9uIGlzIDE5MjB4MTA4MCwgdGhl
IGJ1ZmZlcgpzaXplIGlzIDgyOTQ0MDAgYnl0ZXMuIEhvdyBsYXJnZSBpdCBpcy4gSWYgd2UgaGF2
ZSBhbm90aGVyIHNvbHV0aW9uLApJJ2xsIG5vdCBhY2NlcHQgdGhpcyBvbmUuIEFzIGZhciBhcyBJ
IGtub3csIERTSSBvciBEUEkgY291bGQgb3V0cHV0CnNpbmdsZSBjb2xvciBldmVuIHRob3VnaCB0
aGVyZSBpcyBubyBpbnB1dCBkYXRhLiBJZiB0aGlzIGlzIHRydWUsIHdoZW4KZW5jb2RlciBpcyBl
bmFibGVkLCBpdCBvdXRwdXQgdGhlIHNpbmdsZSBjb2xvci4gV2hlbiBjcnRjIGVuYWJsZSwgY29u
ZmlnCmFsbCBzZXR0aW5nIGV4Y2VwdCAnc3RhcnQnLiBXaGVuIHJlY2VpdmUgdGhlIGJ1ZmZlciwg
J3N0YXJ0JyB0aGUKcGlwZWxpbmUgd2hpY2ggaW5jbHVkZSBlbmNvZGVyLiBXaGVuIGVuY29kZXIg
J3N0YXJ0JywgaXQgZGlzYWJsZSB0aGUKc2luZ2xlIGNvbG9yIGZ1bmN0aW9uIGFuZCBvdXRwdXQg
dGhlIGRhdGEgZnJvbSBpbnB1dC4KClJlZ2FyZHMsCkNLCgoKPiBTaWduZWQtb2ZmLWJ5OiBTdHUg
SHNpZWggPHN0dS5oc2llaEBtZWRpYXRlay5jb20+Cj4gLS0tCj4gIGRyaXZlcnMvZ3B1L2RybS9t
ZWRpYXRlay9tdGtfZGlzcF9yZG1hLmMgICAgfCAyMyArKysrKysrKysrKysrKysrKysrKysrKwo+
ICBkcml2ZXJzL2dwdS9kcm0vbWVkaWF0ZWsvbXRrX2RybV9kZHBfY29tcC5oIHwgIDEgKwo+ICAy
IGZpbGVzIGNoYW5nZWQsIDI0IGluc2VydGlvbnMoKykKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVy
cy9ncHUvZHJtL21lZGlhdGVrL210a19kaXNwX3JkbWEuYyBiL2RyaXZlcnMvZ3B1L2RybS9tZWRp
YXRlay9tdGtfZGlzcF9yZG1hLmMKPiBpbmRleCA4ZDQxZjVjZDQ4NWIuLmUyOGYzNjg3MjhjZCAx
MDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vbWVkaWF0ZWsvbXRrX2Rpc3BfcmRtYS5jCj4g
KysrIGIvZHJpdmVycy9ncHUvZHJtL21lZGlhdGVrL210a19kaXNwX3JkbWEuYwo+IEBAIC0yMCw2
ICsyMCw3IEBACj4gIAo+ICAjaW5jbHVkZSAibXRrX2RybV9jcnRjLmgiCj4gICNpbmNsdWRlICJt
dGtfZHJtX2RkcF9jb21wLmgiCj4gKyNpbmNsdWRlICJtdGtfZHJtX2dlbS5oIgo+ICAKPiAgI2Rl
ZmluZSBESVNQX1JFR19SRE1BX0lOVF9FTkFCTEUJCTB4MDAwMAo+ICAjZGVmaW5lIERJU1BfUkVH
X1JETUFfSU5UX1NUQVRVUwkJMHgwMDA0Cj4gQEAgLTU5LDYgKzYwLDkgQEAKPiAgI2RlZmluZSBN
RU1fTU9ERV9JTlBVVF9GT1JNQVRfVVlWWQkJKDB4MDA0IDw8IDQpCj4gICNkZWZpbmUgTUVNX01P
REVfSU5QVVRfRk9STUFUX1lVWVYJCSgweDAwNSA8PCA0KQo+ICAKPiArI2RlZmluZSBSRE1BX0RV
TU1ZX0JVRkZFUl9TSVpFKGgsIHYpCQkoKGgpICogKHYpICogNCkKPiArI2RlZmluZSBSRE1BX0RV
TU1ZX0JVRkZFUl9QSVRDSChoKQkJKChoKSAqIDQpCj4gKwo+ICBzdHJ1Y3QgbXRrX2Rpc3BfcmRt
YV9kYXRhIHsKPiAgCXVuc2lnbmVkIGludCBmaWZvX3NpemU7Cj4gIH07Cj4gQEAgLTc0LDYgKzc4
LDcgQEAgc3RydWN0IG10a19kaXNwX3JkbWEgewo+ICAJY29uc3Qgc3RydWN0IG10a19kaXNwX3Jk
bWFfZGF0YQkqZGF0YTsKPiAgCXN0cnVjdCBkcm1fZGV2aWNlICpkcm1fZGV2Owo+ICAJYm9vbCBy
ZG1hX21lbW9yeV9tb2RlOwo+ICsJdW5zaWduZWQgaW50IGR1bW15X3NpemU7Cj4gIH07Cj4gIAo+
ICBzdGF0aWMgaW5saW5lIHN0cnVjdCBtdGtfZGlzcF9yZG1hICpjb21wX3RvX3JkbWEoc3RydWN0
IG10a19kZHBfY29tcCAqY29tcCkKPiBAQCAtMTI2LDE0ICsxMzEsMjkgQEAgc3RhdGljIHZvaWQg
bXRrX3JkbWFfZGlzYWJsZV92Ymxhbmsoc3RydWN0IG10a19kZHBfY29tcCAqY29tcCkKPiAgCj4g
IHN0YXRpYyB2b2lkIG10a19yZG1hX3N0YXJ0KHN0cnVjdCBtdGtfZGRwX2NvbXAgKmNvbXApCj4g
IHsKPiArCXN0cnVjdCBtdGtfZGlzcF9yZG1hICpyZG1hID0gY29tcF90b19yZG1hKGNvbXApOwo+
ICsJYm9vbCAqcmRtYV9tZW1vcnlfbW9kZSA9IGNvbXAtPmNvbXBfbW9kZTsKPiArCj4gKwlpZiAo
KnJkbWFfbWVtb3J5X21vZGUgPT0gdHJ1ZSkgewo+ICsJCWNvbXAtPm10a19nZW0gPSBtdGtfZHJt
X2dlbV9jcmVhdGUocmRtYS0+ZHJtX2RldiwKPiArCQkJCQkJICAgcmRtYS0+ZHVtbXlfc2l6ZSwg
ZmFsc2UpOwo+ICsJCXdyaXRlbChjb21wLT5tdGtfZ2VtLT5kbWFfYWRkciAmIDB4RkZGRkZGRkYs
Cj4gKwkJICAgICAgIGNvbXAtPnJlZ3MgKyBESVNQX1JETUFfTUVNX1NUQVJUX0FERFIpOwo+ICsJ
fQo+ICsKPiAgCXJkbWFfdXBkYXRlX2JpdHMoY29tcCwgRElTUF9SRUdfUkRNQV9HTE9CQUxfQ09O
LCBSRE1BX0VOR0lORV9FTiwKPiAgCQkJIFJETUFfRU5HSU5FX0VOKTsKPiAgfQo+ICAKPiAgc3Rh
dGljIHZvaWQgbXRrX3JkbWFfc3RvcChzdHJ1Y3QgbXRrX2RkcF9jb21wICpjb21wKQo+ICB7Cj4g
Kwlib29sICpyZG1hX21lbW9yeV9tb2RlID0gY29tcC0+Y29tcF9tb2RlOwo+ICsKPiAgCXdyaXRl
bChSRE1BX1NPRlRfUkVTRVQsIGNvbXAtPnJlZ3MgKyBESVNQX1JFR19SRE1BX0dMT0JBTF9DT04p
Owo+ICAJd3JpdGVsKDAsIGNvbXAtPnJlZ3MgKyBESVNQX1JFR19SRE1BX0dMT0JBTF9DT04pOwo+
ICsKPiArCWlmICgqcmRtYV9tZW1vcnlfbW9kZSA9PSB0cnVlKQo+ICsJCW10a19kcm1fZ2VtX2Zy
ZWVfb2JqZWN0KCZjb21wLT5tdGtfZ2VtLT5iYXNlKTsKPiAgfQo+ICAKPiAgc3RhdGljIHZvaWQg
bXRrX3JkbWFfY29uZmlnKHN0cnVjdCBtdGtfZGRwX2NvbXAgKmNvbXAsIHVuc2lnbmVkIGludCB3
aWR0aCwKPiBAQCAtMTQ5LDggKzE2OSwxMSBAQCBzdGF0aWMgdm9pZCBtdGtfcmRtYV9jb25maWco
c3RydWN0IG10a19kZHBfY29tcCAqY29tcCwgdW5zaWduZWQgaW50IHdpZHRoLAo+ICAJcmRtYV91
cGRhdGVfYml0cyhjb21wLCBESVNQX1JFR19SRE1BX1NJWkVfQ09OXzEsIDB4ZmZmZmYsIGhlaWdo
dCk7Cj4gIAo+ICAJaWYgKCpyZG1hX21lbW9yeV9tb2RlID09IHRydWUpIHsKPiArCQlyZG1hLT5k
dW1teV9zaXplID0gUkRNQV9EVU1NWV9CVUZGRVJfU0laRSh3aWR0aCwgaGVpZ2h0KTsKPiAgCQly
ZG1hX3VwZGF0ZV9iaXRzKGNvbXAsIERJU1BfUkVHX1JETUFfU0laRV9DT05fMCwgMHhmZjAwMDAs
Cj4gIAkJCQkgTUFUUklYX0lOVF9NVFhfU0VMX0RFRkFVTFQpOwo+ICsJCXdyaXRlbChSRE1BX0RV
TU1ZX0JVRkZFUl9QSVRDSCh3aWR0aCksCj4gKwkJICAgICAgIGNvbXAtPnJlZ3MgKyBESVNQX1JE
TUFfTUVNX1NSQ19QSVRDSCk7Cj4gIAkJcmRtYV91cGRhdGVfYml0cyhjb21wLCBESVNQX1JFR19S
RE1BX0dMT0JBTF9DT04sCj4gIAkJCQkgUkRNQV9NT0RFX01FTU9SWSwgUkRNQV9NT0RFX01FTU9S
WSk7Cj4gIAl9Cj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9tZWRpYXRlay9tdGtfZHJt
X2RkcF9jb21wLmggYi9kcml2ZXJzL2dwdS9kcm0vbWVkaWF0ZWsvbXRrX2RybV9kZHBfY29tcC5o
Cj4gaW5kZXggYTE5ODhjZTE1MTQxLi42ZGJiODMxNDRhNzQgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVy
cy9ncHUvZHJtL21lZGlhdGVrL210a19kcm1fZGRwX2NvbXAuaAo+ICsrKyBiL2RyaXZlcnMvZ3B1
L2RybS9tZWRpYXRlay9tdGtfZHJtX2RkcF9jb21wLmgKPiBAQCAtOTIsNiArOTIsNyBAQCBzdHJ1
Y3QgbXRrX2RkcF9jb21wIHsKPiAgCWludCBpcnE7Cj4gIAlzdHJ1Y3QgZGV2aWNlICpsYXJiX2Rl
djsKPiAgCWVudW0gbXRrX2RkcF9jb21wX2lkIGlkOwo+ICsJc3RydWN0IG10a19kcm1fZ2VtX29i
aiAqbXRrX2dlbTsKPiAgCWNvbnN0IHN0cnVjdCBtdGtfZGRwX2NvbXBfZnVuY3MgKmZ1bmNzOwo+
ICAJdm9pZCAqY29tcF9tb2RlOwo+ICB9OwoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f
X19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3Rz
LmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xp
c3RpbmZvL2RyaS1kZXZlbAo=