From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH v3] drm/i915: Use two 32bit reads for select 64bit REG_READ ioctls Date: Tue, 21 Jul 2015 11:49:58 +0200 Message-ID: <20150721094957.GI16722@phenom.ffwll.local> References: <1437045549-15455-1-git-send-email-michal.winiarski@intel.com> <1437046676-31811-1-git-send-email-chris@chris-wilson.co.uk> <20150717151025.GA26539@mwiniars-desk1.igk.intel.com> <20150721064931.GM16722@phenom.ffwll.local> <20150721094545.GD6166@nuc-i3427.alporthouse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wg0-f43.google.com (mail-wg0-f43.google.com [74.125.82.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id 239EC6E6FD for ; Tue, 21 Jul 2015 02:47:19 -0700 (PDT) Received: by wgmn9 with SMTP id n9so151503714wgm.0 for ; Tue, 21 Jul 2015 02:47:17 -0700 (PDT) Content-Disposition: inline In-Reply-To: <20150721094545.GD6166@nuc-i3427.alporthouse.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Chris Wilson , Daniel Vetter , =?utf-8?Q?Micha=C5=82?= Winiarski , intel-gfx@lists.freedesktop.org, stable@vger.kernel.org List-Id: intel-gfx@lists.freedesktop.org T24gVHVlLCBKdWwgMjEsIDIwMTUgYXQgMTA6NDU6NDVBTSArMDEwMCwgQ2hyaXMgV2lsc29uIHdy b3RlOgo+IE9uIFR1ZSwgSnVsIDIxLCAyMDE1IGF0IDA4OjQ5OjMxQU0gKzAyMDAsIERhbmllbCBW ZXR0ZXIgd3JvdGU6Cj4gPiBPbiBGcmksIEp1bCAxNywgMjAxNSBhdCAwNToxMDoyNVBNICswMjAw LCBNaWNoYcWCIFdpbmlhcnNraSB3cm90ZToKPiA+ID4gT24gVGh1LCBKdWwgMTYsIDIwMTUgYXQg MTI6Mzc6NTZQTSArMDEwMCwgQ2hyaXMgV2lsc29uIHdyb3RlOgo+ID4gPiA+IFNpbmNlIHRoZSBo YXJkd2FyZSBzb21ldGltZXMgbXlzdGVyaW91c2x5IHRvdGFsbHkgZmx1bW1veGVzIHRoZSA2NGJp dAo+ID4gPiA+IHJlYWQgb2YgYSA2NGJpdCByZWdpc3RlciB3aGVuIHJlYWQgdXNpbmcgYSBzaW5n bGUgaW5zdHJ1Y3Rpb24sIHNwbGl0IHRoZQo+ID4gPiA+IHJlYWQgaW50byB0d28gaW5zdHJ1Y3Rp b25zLiBTaW5jZSB0aGUgcmVhZCBoZXJlIGlzIG9mIGF1dG9tYXRpY2FsbHkKPiA+ID4gPiBpbmNy ZW1lbnRpbmcgdGltZXN0YW1wIGNvdW50ZXJzLCB3ZSBhbHNvIGhhdmUgdG8gYmUgdmVyeSBjYXJl ZnVsIGluCj4gPiA+ID4gb3JkZXIgdG8gbWFrZSBzdXJlIHRoYXQgaXQgZG9lcyBub3QgaW5jcmVt ZW50IGJldHdlZW4gdGhlIHR3bwo+ID4gPiA+IGluc3RydWN0aW9ucy4KPiA+ID4gPiAKPiA+ID4g PiBIb3dldmVyLCBzaW5jZSB1c2Vyc3BhY2UgdHJpZWQgdG8gd29ya2Fyb3VuZCB0aGlzIGlzc3Vl IGFuZCBzbyBlbnNocmluZWQKPiA+ID4gPiB0aGlzIEFCSSBmb3IgYSBicm9rZW4gaGFyZHdhcmUg cmVhZCBhbmQgaW4gdGhlIHByb2Nlc3MgbmVnbGVjdGVkIHRoYXQKPiA+ID4gPiB0aGUgcmVhZCBv bmx5IGZhaWxzIGluIHNvbWUgZW52aXJvbm1lbnRzLCB3ZSBoYXZlIHRvIGludHJvZHVjZSBhIG5l dwo+ID4gPiA+IHVBQkkgZmxhZyBmb3IgdXNlcnNwYWNlIHRvIHJlcXVlc3QgdGhlIDJ4MzIgYml0 IGFjY3VyYXRlIHJlYWQgb2YgdGhlCj4gPiA+ID4gdGltZXN0YW1wLgo+ID4gPiA+IAo+ID4gPiA+ IHYyOiBGaXggYWxpZ25tZW50IGNoZWNrIGFuZCBpbmNsdWRlIGRldGFpbHMgb2YgdGhlIHdvcmth cm91bmQgZm9yCj4gPiA+ID4gdXNlcnNwYWNlLgo+ID4gPiA+IAo+ID4gPiA+IFJlcG9ydGVkLWJ5 OiBLYXJvbCBIZXJic3QgPGZyZWVkZXNrdG9wQGthcm9saGVyYnN0LmRlPgo+ID4gPiA+IEJ1Z3pp bGxhOiBodHRwczovL2J1Z3MuZnJlZWRlc2t0b3Aub3JnL3Nob3dfYnVnLmNnaT9pZD05MTMxNwo+ ID4gPiA+IFRlc3RjYXNlOiBpZ3QvZ2VtX3JlZ19yZWFkCj4gPiA+IFRlc3RlZC1ieTogTWljaGHF giBXaW5pYXJza2kgPG1pY2hhbC53aW5pYXJza2lAaW50ZWwuY29tPgo+ID4gCj4gPiBXaGVyZSBh cmUgdGhlIG1lc2EvYmVpZ25ldC9saWJ2YSBwYXRjaGVzIGZvciB0aGlzPwo+IAo+IFRyaXZpYWwu IEFic29sdXRlbHkgdHJpdmlhbC4gSnVzdCB3YWl0aW5nIGZvciB0aGUga2VybmVsLgoKV2VsbCBz dGlsbCBub3QgaG93IGl0IHNob3VsZCBiZSBkb25lLCBzbyBJIGd1ZXNzIHlvdSBvd2UgbWUgdGhl bSBhbGwgOy0pCgpBbnl3YXksIGFwcGxpZWQgdG8gLWZpeGVzLgotRGFuaWVsCi0tIApEYW5pZWwg VmV0dGVyClNvZnR3YXJlIEVuZ2luZWVyLCBJbnRlbCBDb3Jwb3JhdGlvbgpodHRwOi8vYmxvZy5m ZndsbC5jaApfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJ bnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0 cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=