From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kuoppala Subject: Re: [PATCH] drm/i915: Limit number of reads to stabilize rc6 counter reads Date: Mon, 27 Mar 2017 14:30:38 +0300 Message-ID: <87a887x8gx.fsf@gaia.fi.intel.com> References: <20170324165418.7455-1-chris@chris-wilson.co.uk> <87mvc7xcap.fsf@gaia.fi.intel.com> <20170327104509.GE10606@nuc-i3427.alporthouse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id 068E46E1C1 for ; Mon, 27 Mar 2017 11:31:02 +0000 (UTC) In-Reply-To: <20170327104509.GE10606@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 Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org Q2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+IHdyaXRlczoKCj4gT24gTW9u LCBNYXIgMjcsIDIwMTcgYXQgMDE6MDc6NThQTSArMDMwMCwgTWlrYSBLdW9wcGFsYSB3cm90ZToK Pj4gQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24uY28udWs+IHdyaXRlczoKPj4gCj4+ ID4gV2UgaGF2ZSBvbmx5IDhiaXRzIG9mIHByZWNpc2UgdGltZXN0YW1wcyBpbiB3aGljaCB0byBj b21wbGV0ZSBvdXIKPj4gPiB1cHBlci9sb2FkIHJlYWRzLCBhbG9uZyB3aXRoIHRoZSBzd2l0Y2gg YmV0d2VlbiBwcmVjaXNpb24uIFRoaXMgaXMgbm90Cj4+ID4gYWx3YXlzIGVub3VnaCB0aW1lIHRv IHJlYWQgdGhlIHVwcGVyIGNvdW50ZXIgdHdpY2Ugd2l0aGluIHRoZSBzYW1lIHRpbWUKPj4gPiBz bGljZSwgbGVhZGluZyB0byBoYXJkIGxvY2t1cHMuIExpbWl0IHRoZSBudW1iZXIgb2YgdGltZXMg dG8gcHJldmVudAo+PiA+IGFuIGluaWZpdGUgbG9vcCAobXkgZmF1bHQgZm9yIGFzc3VtaW5nIHdl IHdvdWxkIGhhdmUgbm8gdHJvdWJsZSBkb2luZwo+PiA+IHRoZSB3cml0ZSArIHJlYWRzIGZhc3Qg ZW5vdWdoKS4KPj4gPgo+PiAKPj4gV2UgZ2V0IGhlcmUgb25seSB3aXRoIGthc2FuIGVuYWJsZWQ/ IE9yIGV2ZW4gd2l0aG91dD8KPgo+IEl0IHF1aXRlIHBvc3NpYmx5IGlzIGp1c3QgYSBrYXNhbiBh cnRlZmFjdC4gVGhvdWdoIHdlIGFyZSBjaGFzaW5nIHNldmVyZQo+IGxhdGVuY2llcyAoPjQwMHVz KSBkdWUgdG8gbW1pbyByZWFkcyBlbHNld2hlcmUgKHNrbCBndDRlKS4KCkFuZCB3aXRoIGJ5dCwg ZXZlbiBpbnNpZGUgbG9jYWxfaXJxX2Rpc2FibGUvZW5hYmxlLiBJIHJlYWQgdGhhdAp0aGVyZSBo YXMgYmVlbiBzb21lIHBzdGF0ZSBtZXNzdXBzIGluIHRoZSBpbnRlbF9pZGxlLiBJIGp1c3QKaG9w ZSB0aGF0IHdvdWxkIGJlIHJlbWVkeSwgaGF2ZW4ndCB0ZXN0ZWQgeWV0LgoKLU1pa2EKCgo+IC1D aHJpcwo+Cj4gLS0gCj4gQ2hyaXMgV2lsc29uLCBJbnRlbCBPcGVuIFNvdXJjZSBUZWNobm9sb2d5 IENlbnRyZQpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJ bnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0 cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK