From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <igt-dev-bounces@lists.freedesktop.org>
Received: from mail-qt1-f193.google.com (mail-qt1-f193.google.com
 [209.85.160.193])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 2800A6E672
 for <igt-dev@lists.freedesktop.org>; Thu,  6 Dec 2018 21:51:52 +0000 (UTC)
Received: by mail-qt1-f193.google.com with SMTP id i7so2303952qtj.10
 for <igt-dev@lists.freedesktop.org>; Thu, 06 Dec 2018 13:51:52 -0800 (PST)
Message-ID: <c095465064172b49f49da20cbe1eae7093a1208a.camel@redhat.com>
From: Lyude Paul <lyude@redhat.com>
Date: Thu, 06 Dec 2018 16:51:49 -0500
In-Reply-To: <20181206141132.23349-7-paul.kocialkowski@bootlin.com>
References: <20181206141132.23349-1-paul.kocialkowski@bootlin.com>
 <20181206141132.23349-7-paul.kocialkowski@bootlin.com>
Mime-Version: 1.0
Subject: Re: [igt-dev] [PATCH i-g-t 6/9] lib/igt_vc4: Add helpers for
 converting linear to T-tiled XRGB buffers
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/igt-dev>,
 <mailto:igt-dev-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/igt-dev>
List-Post: <mailto:igt-dev@lists.freedesktop.org>
List-Help: <mailto:igt-dev-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/igt-dev>,
 <mailto:igt-dev-request@lists.freedesktop.org?subject=subscribe>
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Errors-To: igt-dev-bounces@lists.freedesktop.org
Sender: "igt-dev" <igt-dev-bounces@lists.freedesktop.org>
To: Paul Kocialkowski <paul.kocialkowski@bootlin.com>, igt-dev@lists.freedesktop.org
Cc: Petri Latvala <petri.latvala@intel.com>, Eben Upton <eben@raspberrypi.org>, Thomas Petazzoni <thomas.petazzoni@bootlin.com>
List-ID: <igt-dev@lists.freedesktop.org>

T25lIHNtYWxsIG5pdHBpY2sKCk9uIFRodSwgMjAxOC0xMi0wNiBhdCAxNToxMSArMDEwMCwgUGF1
bCBLb2NpYWxrb3dza2kgd3JvdGU6Cj4gSW4gb3JkZXIgdG8gaW50ZWdyYXRlIHRlc3Rpbmcgb2Yg
VC10aWxlZCBidWZmZXJzLCB0aGUgZWFzaWVzdCBwYXRoIGlzIHRvCj4gZ2VuZXJhdGUgcGF0dGVy
bnMgKHdpdGggdGhlIGFscmVhZHktZXhpc3RpbmcgZnVuY3Rpb25zKSBpbiBsaW5lYXIKPiBidWZm
ZXJzIGFuZCBjb252ZXJ0IHRoZW0gdG8gVC10aWxlZCBzdWJzZXF1ZW50bHkuCj4gCj4gQWRkIGhl
bHBlcnMgdG8gZG8gdGhhdCBjb252ZXJzaW9uLCB3aXRoIGEgZmlyc3QgaGVscGVyIHRoYXQgcmV0
dXJucyB0aGUKPiBtZW1vcnkgb2Zmc2V0IGZvciBhIGdpdmVuIHBvc2l0aW9uIGluIGEgVC10aWxl
ZCBidWZmZXIgYW5kIGEgc2Vjb25kCj4gaGVscGVyIHRoYXQgdXNlcyBpdCBmb3IgY29udmVydGlu
ZyBiZXR3ZWVuIGZyYW1lYnVmZmVycy4KPiAKPiBTaWduZWQtb2ZmLWJ5OiBQYXVsIEtvY2lhbGtv
d3NraSA8cGF1bC5rb2NpYWxrb3dza2lAYm9vdGxpbi5jb20+Cj4gLS0tCj4gIGxpYi9pZ3RfdmM0
LmMgfCA5NiArKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr
KysKPiAgbGliL2lndF92YzQuaCB8ICA0ICsrKwo+ICAyIGZpbGVzIGNoYW5nZWQsIDEwMCBpbnNl
cnRpb25zKCspCj4gCj4gZGlmZiAtLWdpdCBhL2xpYi9pZ3RfdmM0LmMgYi9saWIvaWd0X3ZjNC5j
Cj4gaW5kZXggMTZkZmU2N2EuLjBiNTEyNGYzIDEwMDY0NAo+IC0tLSBhL2xpYi9pZ3RfdmM0LmMK
PiArKysgYi9saWIvaWd0X3ZjNC5jCj4gQEAgLTM0LDYgKzM0LDcgQEAKPiAgI2luY2x1ZGUgImRy
bXRlc3QuaCIKPiAgI2luY2x1ZGUgImlndF9hdXguaCIKPiAgI2luY2x1ZGUgImlndF9jb3JlLmgi
Cj4gKyNpbmNsdWRlICJpZ3RfZmIuaCIKPiAgI2luY2x1ZGUgImlndF92YzQuaCIKPiAgI2luY2x1
ZGUgImlvY3RsX3dyYXBwZXJzLmgiCj4gICNpbmNsdWRlICJpbnRlbF9yZWcuaCIKPiBAQCAtMTc2
LDMgKzE3Nyw5OCBAQCBib29sIGlndF92YzRfcHVyZ2VhYmxlX2JvKGludCBmZCwgaW50IGhhbmRs
ZSwgYm9vbAo+IHB1cmdlYWJsZSkKPiAgCj4gIAlyZXR1cm4gYXJnLnJldGFpbmVkOwo+ICB9Cj4g
Kwo+ICt1bnNpZ25lZCBpbnQgaWd0X3ZjNF9mYl90X3RpbGVkX2NvbnZlcnQoc3RydWN0IGlndF9m
YiAqZHN0LCBzdHJ1Y3QgaWd0X2ZiCj4gKnNyYykKPiArewo+ICsJdW5zaWduZWQgaW50IGZiX2lk
Owo+ICsJdW5zaWduZWQgaW50IGksIGo7Cj4gKwl1aW50MzJfdCAqc3JjX2J1ZjsKPiArCXVpbnQz
Ml90ICpkc3RfYnVmOwo+ICsJc2l6ZV90IG9mZnNldDsKPiArCj4gKwlpZ3RfYXNzZXJ0KHNyYy0+
ZHJtX2Zvcm1hdCA9PSBEUk1fRk9STUFUX1hSR0I4ODg4KTsKPiArCj4gKwlmYl9pZCA9IGlndF9j
cmVhdGVfZmIoc3JjLT5mZCwgc3JjLT53aWR0aCwgc3JjLT5oZWlnaHQsIHNyYy0KPiA+ZHJtX2Zv
cm1hdCwKPiArCQkJICAgICAgRFJNX0ZPUk1BVF9NT0RfQlJPQURDT01fVkM0X1RfVElMRUQsIGRz
dCk7Cj4gKwlpZ3RfYXNzZXJ0KGZiX2lkID4gMCk7Cj4gKwo+ICsJc3JjX2J1ZiA9IGlndF9mYl9t
YXBfYnVmZmVyKHNyYy0+ZmQsIHNyYyk7Cj4gKwlpZ3RfYXNzZXJ0KHNyY19idWYpOwo+ICsKPiAr
CWRzdF9idWYgPSBpZ3RfZmJfbWFwX2J1ZmZlcihkc3QtPmZkLCBkc3QpOwo+ICsJaWd0X2Fzc2Vy
dChkc3RfYnVmKTsKPiArCj4gKwlmb3IgKGkgPSAwOyBpIDwgc3JjLT5oZWlnaHQ7IGkrKykgewo+
ICsJCWZvciAoaiA9IDA7IGogPCBzcmMtPndpZHRoOyBqKyspIHsKPiArCQkJb2Zmc2V0ID0gaWd0
X3ZjNF90X3RpbGVkX29mZnNldChzcmMtPndpZHRoLCBzcmMtCj4gPmhlaWdodCwKPiArCQkJCQkJ
CXNyYy0+ZHJtX2Zvcm1hdCwgaiwgaSkKPiAvIDQ7Cj4gKwkJCSooZHN0X2J1ZiArIG9mZnNldCkg
PSAqKHNyY19idWYgKwo+ICsJCQkJCQlzcmMtPnN0cmlkZXNbMF0gLyA0ICogaSArIGopOwo+ICsJ
CX0KPiArCX0KPiArCj4gKwlpZ3RfZmJfdW5tYXBfYnVmZmVyKHNyYywgc3JjX2J1Zik7Cj4gKwlp
Z3RfZmJfdW5tYXBfYnVmZmVyKGRzdCwgZHN0X2J1Zik7Cj4gKwo+ICsJcmV0dXJuIGZiX2lkOwo+
ICt9Cj4gKwo+ICtzaXplX3QgaWd0X3ZjNF90X3RpbGVkX29mZnNldChzaXplX3Qgd2lkdGgsIHNp
emVfdCBoZWlnaHQsIHNpemVfdCBmb3JtYXQsCj4gKwkJCSAgICAgIHNpemVfdCB4LCBzaXplX3Qg
eSkKPiArewo+ICsJc2l6ZV90IHQxa19tYXBfZXZlbls0XSA9IHsgMCwgMywgMSwgMiB9Owo+ICsJ
c2l6ZV90IHQxa19tYXBfb2RkWzRdID0geyAyLCAxLCAzLCAwIH07Ck5vIG5lZWQgdG8gc3BlY2lm
eSB0aGUgYXJyYXkgc2l6ZSBoZXJlLCB0MWtfbWFwX2V2ZW5bXSBhbmQgdDFrX21hcF9vZGRbXQpz
aG91bGQgYmUgZmluZS4gQWxzbywgdGhlc2UgbG9vayBsaWtlIHRoZXkgcHJvYmFibHkgc2hvdWxk
IGJlIGNvbnN0LgoKPiArCXNpemVfdCBvZmZzZXQgPSAwOwo+ICsJc2l6ZV90IHQ0a193LCB0NGtf
eCwgdDRrX3k7Cj4gKwlzaXplX3QgdDFrX3gsIHQxa195Owo+ICsJc2l6ZV90IHQ2NGJfeCwgdDY0
Yl95Owo+ICsJc2l6ZV90IHBpeF94LCBwaXhfeTsKPiArCXVuc2lnbmVkIGludCBpbmRleDsKPiAr
Cj4gKwlpZ3RfYXNzZXJ0KGZvcm1hdCA9PSBEUk1fRk9STUFUX1hSR0I4ODg4KTsKPiArCj4gKwkv
KiBXaWR0aCBpbiBudW1iZXIgb2YgNEsgdGlsZXMuICovCj4gKwl0NGtfdyA9IEFMSUdOKHdpZHRo
LCAzMikgLyAzMjsKPiArCj4gKwkvKiBYIGFuZCB5IGNvb3JkaW5hdGVzIGluIG51bWJlciBvZiA0
SyB0aWxlcyAoMzJ4MzIpLiAqLwo+ICsJdDRrX3ggPSB4IC8gMzI7Cj4gKwl0NGtfeSA9IHkgLyAz
MjsKPiArCj4gKwkvKiBJbmNyZWFzZSBvZmZzZXQgdG8gdGhlIGJlZ2lubmluZyBvZiB0aGUgY29y
cmVzcG9uZGluZyA0SyB0aWxlLiAqLwo+ICsJb2Zmc2V0ICs9IHQ0a195ICogdDRrX3cgKiAzMiAq
IDMyOwo+ICsKPiArCS8qIFggYW5kIFkgY29vcmRpbmF0ZXMgaW4gbnVtYmVyIG9mIDFLIHRpbGVz
ICgxNngxNikgd2l0aGluIHRoZSA0Swo+IHRpbGUuICovCj4gKwl0MWtfeCA9ICh4ICUgMzIpIC8g
MTY7Cj4gKwl0MWtfeSA9ICh5ICUgMzIpIC8gMTY7Cj4gKwo+ICsJaW5kZXggPSAyICogdDFrX3kg
KyB0MWtfeDsKPiArCj4gKwlpZiAodDRrX3kgJSAyKSB7Cj4gKwkJLyogT2RkIHJvd3Mgc3RhcnQg
ZnJvbSB0aGUgcmlnaHQuICovCj4gKwkJb2Zmc2V0ICs9ICh0NGtfdyAtIHQ0a194IC0gMSkgKiAz
MiAqIDMyOwo+ICsJCW9mZnNldCArPSB0MWtfbWFwX29kZFtpbmRleF0gKiAxNiAqIDE2Owo+ICsJ
fSBlbHNlIHsKPiArCQkvKiBFdmVuIHJvd3Mgc3RhcnQgZnJvbSB0aGUgbGVmdC4gKi8KPiArCQlv
ZmZzZXQgKz0gdDRrX3ggKiAzMiAqIDMyOwo+ICsJCW9mZnNldCArPSB0MWtfbWFwX2V2ZW5baW5k
ZXhdICogMTYgKiAxNjsKPiArCX0KPiArCj4gKwkvKiBYIGFuZCBZIGNvb3JkaW5hdGVzIGluIG51
bWJlciBvZiA2NCBieXRlIHRpbGVzICg0eDQpIHdpdGhpbiB0aGUgMUsKPiB0aWxlLiAqLwo+ICsJ
dDY0Yl94ID0gKHggJSAxNikgLyA0Owo+ICsJdDY0Yl95ID0gKHkgJSAxNikgLyA0Owo+ICsKPiAr
CS8qIEluY3JlYXNlIG9mZnNldCB0byB0aGUgYmVnaW5uaW5nIG9mIHRoZSBjb3JyZXNwb25kaW5n
IDY0IGJ5dGUgdGlsZS4KPiAqLwo+ICsJb2Zmc2V0ICs9IHQ2NGJfeSAqIDQgKiA0ICogNCArIHQ2
NGJfeCAqIDQgKiA0Owo+ICsKPiArCS8qIFggYW5kIFkgY29vcmRpbmF0ZXMgaW4gbnVtYmVyIG9m
IHBpeGVscyB3aXRoaW4gdGhlIDY0IGJ5dGUgdGlsZS4gKi8KPiArCXBpeF94ID0geCAlIDQ7Cj4g
KwlwaXhfeSA9IHkgJSA0Owo+ICsKPiArCS8qIEluY3JlYXNlIG9mZnNldCB0byB0aGUgY29ycmVj
dCBwaXhlbC4gKi8KPiArCW9mZnNldCArPSBwaXhfeSAqIDQgKyBwaXhfeDsKPiArCj4gKwkvKiBN
dWx0aXBseSBieSB0aGUgbnVtYmVyIG9mIGJ5dGVzIHBlciBwaXhlbCBmb3IgdGhlIGZvcm1hdC4g
Ki8KPiArCW9mZnNldCAqPSA0Owo+ICsKPiArCXJldHVybiBvZmZzZXQ7Cj4gK30KPiBkaWZmIC0t
Z2l0IGEvbGliL2lndF92YzQuaCBiL2xpYi9pZ3RfdmM0LmgKPiBpbmRleCBlYmM4YTM4OC4uYWI0
NGY3NzEgMTAwNjQ0Cj4gLS0tIGEvbGliL2lndF92YzQuaAo+ICsrKyBiL2xpYi9pZ3RfdmM0LmgK
PiBAQCAtMzMsNCArMzMsOCBAQCBib29sIGlndF92YzRfcHVyZ2VhYmxlX2JvKGludCBmZCwgaW50
IGhhbmRsZSwgYm9vbAo+IHB1cmdlYWJsZSk7Cj4gIHZvaWQgaWd0X3ZjNF9zZXRfdGlsaW5nKGlu
dCBmZCwgdWludDMyX3QgaGFuZGxlLCB1aW50NjRfdCBtb2RpZmllcik7Cj4gIHVpbnQ2NF90IGln
dF92YzRfZ2V0X3RpbGluZyhpbnQgZmQsIHVpbnQzMl90IGhhbmRsZSk7Cj4gIAo+ICt1bnNpZ25l
ZCBpbnQgaWd0X3ZjNF9mYl90X3RpbGVkX2NvbnZlcnQoc3RydWN0IGlndF9mYiAqZHN0LCBzdHJ1
Y3QgaWd0X2ZiCj4gKnNyYyk7Cj4gK3NpemVfdCBpZ3RfdmM0X3RfdGlsZWRfb2Zmc2V0KHNpemVf
dCB3aWR0aCwgc2l6ZV90IGhlaWdodCwgc2l6ZV90IGZvcm1hdCwKPiArCQkJICAgICAgc2l6ZV90
IHgsIHNpemVfdCB5KTsKPiArCj4gICNlbmRpZiAvKiBJR1RfVkM0X0ggKi8KLS0gCkNoZWVycywK
CUx5dWRlIFBhdWwKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f
X19fCmlndC1kZXYgbWFpbGluZyBsaXN0CmlndC1kZXZAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0
dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaWd0LWRldgo=