From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kahola Subject: Re: [PATCH] drm/i915: Wait for vblank after register read Date: Tue, 24 Apr 2018 11:14:34 +0300 Message-ID: <1524557674.11552.2.camel@intel.com> References: <1524038216-22142-1-git-send-email-mika.kahola@intel.com> <1524121385.16539.22.camel@intel.com> <20180420181531.GA1310@intel.com> <1524257781.24522.13.camel@dk-H97M-D3H> Reply-To: mika.kahola@intel.com Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id C2A226E38E for ; Tue, 24 Apr 2018 08:14:38 +0000 (UTC) In-Reply-To: <1524257781.24522.13.camel@dk-H97M-D3H> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: dhinakaran.pandiyan@intel.com, Rodrigo Vivi Cc: "intel-gfx@lists.freedesktop.org" List-Id: intel-gfx@lists.freedesktop.org T24gRnJpLCAyMDE4LTA0LTIwIGF0IDEzOjU2IC0wNzAwLCBEaGluYWthcmFuIFBhbmRpeWFuIHdy b3RlOgo+IE9uIEZyaSwgMjAxOC0wNC0yMCBhdCAxMToxNSAtMDcwMCwgUm9kcmlnbyBWaXZpIHdy b3RlOgo+ID4gCj4gPiBPbiBUaHUsIEFwciAxOSwgMjAxOCBhdCAxMDowMzowNUFNICswMzAwLCBN aWthIEthaG9sYSB3cm90ZToKPiA+ID4gCj4gPiA+IE9uIFRodSwgMjAxOC0wNC0xOSBhdCAwOTox MSArMDMwMCwgTG9mc3RlZHQsIE1hcnRhIHdyb3RlOgo+ID4gPiA+IAo+ID4gPiA+IEZvciB0aGUg UFcgcmVzdWx0czrCoAo+ID4gPiA+IGh0dHBzOi8vcGF0Y2h3b3JrLmZyZWVkZXNrdG9wLm9yZy9z ZXJpZXMvNDE4NzcvCj4gPiA+ID4gCj4gPiA+ID4gaXQgZGlkbid0IGZpeCB0aGUgQ1JDIG1pc21h dGNoIG9uOgo+ID4gPiA+IMKgaHR0cHM6Ly9pbnRlbC1nZngtY2kuMDEub3JnL3RyZWUvZHJtLXRp cC9QYXRjaHdvcmtfODczMS9zaGFyZC0KPiA+ID4gPiBzbmI2L2lndEBrbXNfZnJvbnRidWZmZXJf dHJhY2tpbmdAZmJjLTFwLXByaS1pbmRmYi1tdWx0aWRyYXcuaHQKPiA+ID4gPiBtbAo+ID4gPiBU aGlzIHdhcyBleHBlY3RlZCB0aGF0IHJlbW92aW5nIG9uZSB2YmxhbmsgZG9lc24ndCBmaXggaGF2 ZSBhbgo+ID4gPiBlZmZlY3QKPiA+ID4gb24gY3JjIG1pc21hdGNoZXMuIFRoZXJlcyBzb21ldGhp bmcgbW9yZSBpbiB0aGlzIGlzc3VlLgo+ID4gPiAKPiA+ID4gPiAKPiA+ID4gPiAKPiA+ID4gPiBi dXQgdGhhdCB0ZXN0IGhhcyBhbHdheXMgZmFpbGVkIG9uIFNOQjrCoAo+ID4gPiA+IGh0dHA6Ly9n ZngtY2kuZmkuaW50ZWwuY29tL2NpYnVnbG9nLz9hY3Rpb25fZmFpbHVyZXNfaGlzdG9yeT0tMQo+ ID4gPiA+ICZmYWlsdQo+ID4gPiA+IHJlc190ZXN0PWlndEBrbXNfZnJvbnRidWZmZXJfdHJhY2tp bmdAZmJjLTFwLXByaS1pbmRmYi0KPiA+ID4gPiBtdWx0aWRyYXcmZmFpbHVyZXNfbWFjaGluZT1z aGFyZC1zbmIKPiA+ID4gPiAKPiA+ID4gPiBzbyBJIGRvbid0IHRoaW5rIHlvdSBicmFrZSBhbnl0 aGluZyB3aXRoIHRoaXMgcGF0Y2guCj4gPiA+ID4gCj4gPiA+ID4gTWlrYSwgZG8geW91IGtub3cg aWYgd2FpdGluZyBmb3IgdGhlIGV4dHJhIHZibGFuayB3YXMgZG9uZSB3aXRoCj4gPiA+ID4gc29t ZQo+ID4gPiA+IHB1cnBvc2U/Cj4gPiA+IFRoYXQgSSBkb24ndCBrbm93IGlmIGl0IHdhcyBpbnRl bnRpb25hbC4gSSdsbCB0cnkgdG8gZmluZCBvdXQgd2h5Cj4gPiA+IGl0Cj4gPiA+IHdhcyBuZWVk ZWQuCj4gPiBzaW5rIENSQyBjYWxjdWxhdGlvbiBzdGFydHMgb24gdGhlIG5leHQgYWN0aXZlIGZy YW1lIGFuZCB0YWtlcyBhCj4gPiBmdWxsCj4gPiBmcmFtZSB0byBmaW5pc2ggdGhlIGNhbGN1bGF0 aW9uLiBTbyAyIHZibGFua3MgYmVmb3JlIHRoZSByZXN1bHQgaXMKPiA+IHJlYWR5Lgo+ID4gCj4g PiBJIGRvbid0IGJlbGlldmUgd2Ugc2hvdWxkIG1vdmUgaXQgZm9yIGFmdGVyIHJlYWRpbmcgaXQu Cj4gPiAKPiA+IEJ1dCBpdCBpcyBhIGZhY3QgdGhhdCB0aGlzIHNpbmsgY3JjIHdhcyBhbHdheXMg b25seSBhIGhlYWRhY2hlLgo+ID4gSWYgd2UgbWFuYWdlIHRvIG1vdmUgUFNSIHRlc3RzIHRvIHVz ZSB0aGUgaW50ZXJydXB0cyBhbmQgc3RhdHVzCj4gPiBiaXRzIG9ubHkKPiA+IHRoYW4gd2Ugd2ls bCBiZSBhYmxlIHRvIGtpbGwgdGhpcyBzaW5rIGNyYyBjb2RlIGVudGlyZWx5Li4uLgo+IFl1cC4K PiAKPiBQYXRjaCBoYXMgbm90aGluZyB0byBkbyB3aXRoIHRoZSBidWcgdGhhdCBpdCBpcyB0cnlp bmcgdG8gZml4LiBUaGUKPiB0ZXN0Cj4gZG9lc24ndCByZWFkIHNpbmstY3JjJ3MsIHNvIEkgZG9u J3QgdGhpbmsgZXZlbiBhIFJlZmVyZW5jZXMgdGFnIGlzCj4gYXBwcm9wcmlhdGUgaGVyZS4KT2su IEkgZG9uJ3QgbWluZCBkcm9wcGluZyB0aGlzIHBhdGNoIGlmIHlvdSBndXlzIGZlZWwgdGhhdCB0 aGlzIGhhcyBubwpyZWxldmFuY2UuIEFzIEkgc2FpZCBlYXJsaWVyLCB0aGlzIGlzIHNvbWV0aGlu ZyB0aGF0IGNhdWdodCBteSBleWUgd2hlbgpsb29raW5nIGludG8gdGhpcyBDUkMgYnVnIHRoYXQg d2UgaGF2ZS4KCj4gCj4gCj4gCi0tIApNaWthIEthaG9sYSAtIEludGVsIE9UQwoKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcg bGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRl c2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==