From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sean Paul Subject: Re: [PATCH v3 10/24] drm/rockchip: dw-mipi-dsi: don't assume buffer is aligned Date: Tue, 31 Jan 2017 09:53:13 -0500 Message-ID: <20170131145313.GY20076@art_vandelay> References: <20170129132444.25251-1-john@metanate.com> <20170129132444.25251-11-john@metanate.com> <20170130200811.GK20076@art_vandelay> <20170131115618.633398fc.john@metanate.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-qt0-x22a.google.com (mail-qt0-x22a.google.com [IPv6:2607:f8b0:400d:c0d::22a]) by gabe.freedesktop.org (Postfix) with ESMTPS id E78256E67D for ; Tue, 31 Jan 2017 14:53:15 +0000 (UTC) Received: by mail-qt0-x22a.google.com with SMTP id w20so166464316qtb.1 for ; Tue, 31 Jan 2017 06:53:15 -0800 (PST) Content-Disposition: inline In-Reply-To: <20170131115618.633398fc.john@metanate.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: John Keeping Cc: Chris Zhong , linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org List-Id: dri-devel@lists.freedesktop.org T24gVHVlLCBKYW4gMzEsIDIwMTcgYXQgMTE6NTY6MThBTSArMDAwMCwgSm9obiBLZWVwaW5nIHdy b3RlOgo+IE9uIE1vbiwgMzAgSmFuIDIwMTcgMTU6MDg6MTEgLTA1MDAsIFNlYW4gUGF1bCB3cm90 ZToKPiAKPiA+IE9uIFN1biwgSmFuIDI5LCAyMDE3IGF0IDAxOjI0OjMwUE0gKzAwMDAsIEpvaG4g S2VlcGluZyB3cm90ZToKPiA+ID4gQnkgZGVyZWZlcmVuY2luZyB0aGUgTUlQSSBjb21tYW5kIGJ1 ZmZlciBhcyBhIHUzMiogd2UgcmVseSBvbiBpdCBiZWluZwo+ID4gPiBjb3JyZWN0bHkgYWxpZ25l ZCBvbiBBUk0sIGJ1dCB0aGlzIG1heSBub3QgYmUgdGhlIGNhc2UuICBDb3B5IGl0IGludG8gYQo+ ID4gPiBzdGFjayB2YXJpYWJsZSB0aGF0IHdpbGwgYmUgY29ycmVjdGx5IGFsaWduZWQuCj4gPiA+ IAo+ID4gPiBTaWduZWQtb2ZmLWJ5OiBKb2huIEtlZXBpbmcgPGpvaG5AbWV0YW5hdGUuY29tPgo+ ID4gPiBSZXZpZXdlZC1ieTogQ2hyaXMgWmhvbmcgPHp5d0Byb2NrLWNoaXBzLmNvbT4KPiA+ID4g LS0tCj4gPiA+IHYzOgo+ID4gPiAtIEFkZCBDaHJpcycgUmV2aWV3ZWQtYnkKPiA+ID4gVW5jaGFu Z2VkIGluIHYyCj4gPiA+IAo+ID4gPiAgZHJpdmVycy9ncHUvZHJtL3JvY2tjaGlwL2R3LW1pcGkt ZHNpLmMgfCAxMiArKysrKysrLS0tLS0KPiA+ID4gIDEgZmlsZSBjaGFuZ2VkLCA3IGluc2VydGlv bnMoKyksIDUgZGVsZXRpb25zKC0pCj4gPiA+IAo+ID4gPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9n cHUvZHJtL3JvY2tjaGlwL2R3LW1pcGktZHNpLmMgYi9kcml2ZXJzL2dwdS9kcm0vcm9ja2NoaXAv ZHctbWlwaS1kc2kuYwo+ID4gPiBpbmRleCAwM2ZjMDk2ZmUxYmQuLmRkYmMwMzdlN2NlZCAxMDA2 NDQKPiA+ID4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL3JvY2tjaGlwL2R3LW1pcGktZHNpLmMKPiA+ ID4gKysrIGIvZHJpdmVycy9ncHUvZHJtL3JvY2tjaGlwL2R3LW1pcGktZHNpLmMKPiA+ID4gQEAg LTYwNywxMCArNjA3LDEwIEBAIHN0YXRpYyBpbnQgZHdfbWlwaV9kc2lfZGNzX3Nob3J0X3dyaXRl KHN0cnVjdCBkd19taXBpX2RzaSAqZHNpLAo+ID4gPiAgc3RhdGljIGludCBkd19taXBpX2RzaV9k Y3NfbG9uZ193cml0ZShzdHJ1Y3QgZHdfbWlwaV9kc2kgKmRzaSwKPiA+ID4gIAkJCQkgICAgICBj b25zdCBzdHJ1Y3QgbWlwaV9kc2lfbXNnICptc2cpCj4gPiA+ICB7Cj4gPiA+IC0JY29uc3QgdTMy ICp0eF9idWYgPSBtc2ctPnR4X2J1ZjsKPiA+ID4gLQlpbnQgbGVuID0gbXNnLT50eF9sZW4sIHBs ZF9kYXRhX2J5dGVzID0gc2l6ZW9mKCp0eF9idWYpLCByZXQ7Cj4gPiA+ICsJY29uc3QgdTggKnR4 X2J1ZiA9IG1zZy0+dHhfYnVmOwo+ID4gPiArCWludCBsZW4gPSBtc2ctPnR4X2xlbiwgcGxkX2Rh dGFfYnl0ZXMgPSBzaXplb2YodTMyKSwgcmV0Owo+ID4gPiAgCXUzMiBoZHJfdmFsID0gR0VOX0hE QVRBKG1zZy0+dHhfbGVuKSB8IEdFTl9IVFlQRShtc2ctPnR5cGUpOwo+ID4gPiAtCXUzMiByZW1h aW5kZXIgPSAwOwo+ID4gPiArCXUzMiByZW1haW5kZXI7Cj4gPiA+ICAJdTMyIHZhbDsKPiA+ID4g IAo+ID4gPiAgCWlmIChtc2ctPnR4X2xlbiA8IDMpIHsKPiA+ID4gQEAgLTYyMSwxMiArNjIxLDE0 IEBAIHN0YXRpYyBpbnQgZHdfbWlwaV9kc2lfZGNzX2xvbmdfd3JpdGUoc3RydWN0IGR3X21pcGlf ZHNpICpkc2ksCj4gPiA+ICAKPiA+ID4gIAl3aGlsZSAoRElWX1JPVU5EX1VQKGxlbiwgcGxkX2Rh dGFfYnl0ZXMpKSB7Cj4gPiA+ICAJCWlmIChsZW4gPCBwbGRfZGF0YV9ieXRlcykgewo+ID4gPiAr CQkJcmVtYWluZGVyID0gMDsKPiA+ID4gIAkJCW1lbWNweSgmcmVtYWluZGVyLCB0eF9idWYsIGxl bik7Cj4gPiA+ICAJCQlkc2lfd3JpdGUoZHNpLCBEU0lfR0VOX1BMRF9EQVRBLCByZW1haW5kZXIp Owo+ID4gPiAgCQkJbGVuID0gMDsKPiA+ID4gIAkJfSBlbHNlIHsKPiA+ID4gLQkJCWRzaV93cml0 ZShkc2ksIERTSV9HRU5fUExEX0RBVEEsICp0eF9idWYpOwo+ID4gPiAtCQkJdHhfYnVmKys7Cj4g PiA+ICsJCQltZW1jcHkoJnJlbWFpbmRlciwgdHhfYnVmLCBwbGRfZGF0YV9ieXRlcyk7Cj4gPiA+ ICsJCQlkc2lfd3JpdGUoZHNpLCBEU0lfR0VOX1BMRF9EQVRBLCByZW1haW5kZXIpOwo+ID4gPiAr CQkJdHhfYnVmICs9IHBsZF9kYXRhX2J5dGVzOwo+ID4gPiAgCQkJbGVuIC09IHBsZF9kYXRhX2J5 dGVzOwo+ID4gPiAgCQl9ICAKPiA+IAo+ID4gCj4gPiBZb3UgY2FuIGNsZWFuIHRoaXMgdXAgZnVy dGhlciBieSByZW1vdmluZyBhIGNvdXBsZSBvZiB0aGUgbG9jYWxzLCB0aGUKPiA+IGNvbmRpdGlv bmFsIGFuZCB0aGUgZGl2aXNpb246Cj4gPiAKPiA+IHdoaWxlKGxlbiA8IG1zZy0+dHhfbGVuKSB7 Cj4gPiAgICAgICAgIHNpemVfdCB0b193cml0ZSA9IE1JTihtc2ctPnR4X2xlbiAtIGxlbiwgc2l6 ZW9mKHJlbWFpbmRlcikpOwo+ID4gCj4gPiAgICAgICAgIG1lbWNweSgmcmVtYWluZGVyLCBtc2ct PnR4X2J1ZiArIGxlbiwgdG9fd3JpdGUpOwo+ID4gICAgICAgICBkc2lfd3JpdGUoZHNpLCBEU0lf R0VOX1BMRF9EQVRBLCByZW1haW5kZXIpOwo+ID4gICAgICAgICBsZW4gKz0gdG9fd3JpdGU7Cj4g PiAKPiA+ICAgICAgICAgLi4uCj4gPiB9Cj4gCj4gVGhhdCdzIGEgbmljZSBzaW1wbGlmaWNhdGlv biwgYnV0IGl0J3MgbW9yZSB0aGFuIEkgd2FzIHRyeWluZyB0byBkbyB3aXRoCj4gdGhpcyBwYXRj aC4gIEkgY2FuIGFkZCBhIGNsZWFudXAgcGF0Y2ggb24gdG9wIHRvIHNpbXBsaWZ5IHRoZSBmdW5j dGlvbiwKPiBidXQgSSBkb24ndCBoYXZlIHRoYXQgbXVjaCB0aW1lIHRvIHNwZW5kIG9uIHRoaXMg YXQgdGhlIG1vbWVudCBhbmQgSSdkCj4gcmF0aGVyIG5vdCBibG9jayB0aGlzIGZpeCBiZWNhdXNl IHRoZSBvcmlnaW5hbCBjb2RlIHN0cnVjdHVyZSBjb3VsZCBiZQo+IGltcHJvdmVkLgoKT2suIEkn bSBpbmNsaW5lZCB0byBhcmd1ZSB0aGF0IHdyaXRpbmcgeW91ciByZXNwb25zZSBwcm9iYWJseSB0 b29rIG1vcmUgdGltZQp0aGFuIHRoZSBjb3B5L3Bhc3RlIHRvIGZpeCBpdCwgYnV0ICpzaHJ1Zyou CgpTZWFuCgo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f Cj4gZHJpLWRldmVsIG1haWxpbmcgbGlzdAo+IGRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5v cmcKPiBodHRwczovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1k ZXZlbAoKLS0gClNlYW4gUGF1bCwgU29mdHdhcmUgRW5naW5lZXIsIEdvb2dsZSAvIENocm9taXVt IE9TCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1k ZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczov L2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo=