From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [RFC PATCH] drm/vblanks: Deal with HW vblank counter resets. Date: Tue, 7 Nov 2017 12:50:31 +0200 Message-ID: <20171107105031.GN10981@intel.com> References: <20171107062617.4227-1-dhinakaran.pandiyan@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Michel =?iso-8859-1?Q?D=E4nzer?= Cc: Daniel Vetter , intel-gfx@lists.freedesktop.org, Dhinakaran Pandiyan , dri-devel@lists.freedesktop.org, Rodrigo Vivi List-Id: dri-devel@lists.freedesktop.org T24gVHVlLCBOb3YgMDcsIDIwMTcgYXQgMTA6NDc6MDBBTSArMDEwMCwgTWljaGVsIETDpG56ZXIg d3JvdGU6Cj4gT24gMDcvMTEvMTcgMDc6MjYgQU0sIERoaW5ha2FyYW4gUGFuZGl5YW4gd3JvdGU6 Cj4gPiBTb21lIEhXIHZibGFuayBjb3VudGVycyByZXNldCBkdWUgdG8gcG93ZXIgbWFuYWdlbWVu dCBldmVudHMsIHdoaWNoIG1lc3Nlcwo+ID4gdXAgdGhlIHZibGFuayBjb3VudGluZyBsb2dpYy4g VGhpcyBsZWFkcyB0byBzY3JlZW4gZnJlZXplcyB3aXRoIHVzZXIgc3BhY2UKPiA+IHdhaXRpbmcg b24gdmJsYW5rIGV2ZW50cyB0aGF0IG1heSBub3Qgb2NjdXIgaWYgdGhlIGNvdW50ZXIga2VlcHMg cmVzZXR0aW5nLgo+ID4gCj4gPiBGb3IgZS5nLiwgQWZ0ZXIgdGhlIEhXIHZibGFuayBjb3VudGVy IHJlc2V0cwo+ID4gWyAgICA5LjAwNzM1OV0gW2RybTpkcm1fdXBkYXRlX3ZibGFua19jb3VudCBb ZHJtXV0gdXBkYXRpbmcgdmJsYW5rIGNvdW50Cj4gPiBvbiBjcnRjIDA6IGN1cnJlbnQ9Mjk3LCBk aWZmPTQyOTQ5NjUzODksIGh3PTUgaHdfbGFzdD0xOTEyCj4gPiAKPiA+IFNvLCBmYWxsIGJhY2sg dG8gdGhlIFNXIGNvdW50ZXIsIGNvbXB1dGVkIHVzaW5nICB2YmxhbmsgdGltZXN0YW1wcwo+ID4g YW5kIGZyYW1lIGR1cmF0aW9uLCB3aGVuIHRoZSBIVyBjb3VudGVyIHZhbHVlIGRldmlhdGVzIGJ5 IDUwJSBvZiB0aGUgU1cKPiA+IGNvbXB1dGVkIHZhbHVlLgo+ID4gCj4gPiBJIGhhdmUgdGVzdGVk IHRoaXMgcGF0Y2ggb24gbXkgU0tMIGxhcHRvcCB3aXRoIGk5MTUuZW5hYmxlX3Bzcj0xIGFuZCBp dAo+ID4gKnNlZW1zKiB0byBzb2x2ZSB0aGUgc2NyZWVuIGZyZWV6ZSBpc3N1ZSBzZWVuIHdpdGgg UFNSIHdoZW4gRE1DIGlzIGxvYWRlZC4KPiA+IAo+ID4gS25vd24gaXNzdWVzOgo+ID4gMSkgVGhl IDUwJSBkZXZpYXRpb24gbWFyZ2luIGlzIGFyYml0cmFyeS4KPiA+IDIpICJSZWR1bmRhbnQgdmJs aXJxIGlnbm9yZWQiIG1lc3NhZ2VzIGFyZSBtb3JlIGZyZXF1ZW50Lgo+ID4gCj4gPiBJIGFtIHNl bmRpbmcgdGhpcyBhcyBhbiBSRkMgdG8gZ2V0IGZlZWRiYWNrIG9uIHdoZXRoZXIgdGhlIGZhbGwg YmFjawo+ID4gYXBwcm9hY2ggaXMgc2FuZSBhbmQgaWYgaXQgc2hvdWxkIGJlIGltcGxlbWVudGVk IGluIHRoZSBjb3JlLgo+IAo+IElzIHRoZXJlIG5vIHdheSBmb3IgdGhlIGRyaXZlciB0byBrbm93 IHVuZGVyIHdoaWNoIGNpcmN1bXN0YW5jZXMgdGhlCj4gcmVzZXQgdG8gMCBtaWdodCBoYXBwZW4/ IElmIHRoZXJlIGlzLCBtYXliZSBpdCBjb3VsZCBiZSBzb2x2ZWQgYnkKPiBjYWxsaW5nIGRybV9j cnRjX3ZibGFua19vZmYoKSBiZWZvcmUgaXQgbWlnaHQgaGFwcGVuIGFuZAo+IGRybV9jcnRjX3Zi bGFua19vbigpIGFmdGVyIGl0IG1pZ2h0IGhhdmUgaGFwcGVuZWQuCj4gCj4gT3RoZXJ3aXNlLCBt aWdodCBpdCBiZSBiZXR0ZXIgbm90IHRvIHVzZSB0aGUgSFcgY291bnRlciBhdCBhbGwgd2hlbiBp dCdzCj4ga25vd24gbm90IHRvIGJlIHJlbGlhYmxlPwoKWWVhaCwgSSB0aGluayB3ZSBjb3VsZCBq dXN0IGF2b2lkIHVzaW5nIHRoZSBIVyBjb3VudGVyIHdoZW5ldmVyIHRoZXJlJ3MKYSBwb3NzaWJp bGl0eSBvZiBQU1IgYmVpbmcgdXNlZCBvbiB0aGUgY3J0Yy4KCkFzc3VtaW5nIHdlIHN0aWxsIHdh bnQgdG8gdXNlIHRoZSBIVyBjb3VudGVyIG9uIGNydGNzIHRoYXQgY2FuJ3QgZG8gUFNSLAp3ZSdy ZSBnb2luZyB0byBuZWVkIHNvbWUga2luZCBvZiBwZXItY3J0YyBtZWNoYW5pc20gdG8gdGVsbCBk cm1fdmJsYW5rLmMKd2hpY2ggbWV0aG9kIHRvIHVzZS4gaHdtb2RlLnByaXZhdGVfZmxhZ3MgaXMg b25lIG9wdGlvbi4gV2UgYWxyZWFkeSB1c2UKaXQgZm9yIGNob29zaW5nIGJldHdlZW4gdGhlIHNj YW5saW5lIGNvdW50ZXIgYW5kIGhhcmR3YXJlIHRpbWVzdGFtcHMgd2hlbgpjYWxjdWxhdGluZyB0 aGUgc2Nhbm91dCBwb3NpdGlvbi4gQnV0IGluIHRoaXMgY2FzZSB0aGUgZmxhZyB3b3VsZG4ndCBi ZQpleGFjdGx5IHByaXZhdGUgc2luY2UgZHJtX3ZibGFuay5jIHdvdWxkIGhhdmUgdG8ga25vdyBh Ym91dCBpdCBhcyB3ZWxsLgpJZiB0aGF0IGlzIGRlZW1lZCB0byBiZSBhIHByb2JsZW0sIHRoZW4g d2UgbWlnaHQganVzdCBuZWVkIHRvIGFkZCBhIGJvb2wKdG8gc3RydWN0IGRybV92YmxhbmtfY3J0 YyB0byBpbmRpY2F0ZSB0aGF0IHRoZSBodyBjb3VudGVyIGlzIGdvb2QsIG9yCm1heWJlIGV2ZW4g bW92ZSB0aGUgZGV2LT5tYXhfdmJsYW5rX2NvdW50IHRvIGxpdmUgaW5zaWRlCnN0cnVjdCBkcm1f dmJsYW5rX2NydGMuCgotLSAKVmlsbGUgU3lyasOkbMOkCkludGVsIE9UQwpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0 CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3Rv cC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK