From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jani Nikula Subject: Re: [PATCH] drm/i915: Fix divide by zero on watermark update Date: Wed, 12 Aug 2015 17:26:59 +0300 Message-ID: <87zj1wshu4.fsf@intel.com> References: <1437064611-6261-1-git-send-email-mika.kuoppala@intel.com> <20150716164417.GF26643@strange.ger.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id 07EBD6EB62 for ; Wed, 12 Aug 2015 07:24:12 -0700 (PDT) In-Reply-To: <20150716164417.GF26643@strange.ger.corp.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Damien Lespiau , Mika Kuoppala Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gVGh1LCAxNiBKdWwgMjAxNSwgRGFtaWVuIExlc3BpYXUgPGRhbWllbi5sZXNwaWF1QGludGVs LmNvbT4gd3JvdGU6Cj4gT24gVGh1LCBKdWwgMTYsIDIwMTUgYXQgMDc6MzY6NTFQTSArMDMwMCwg TWlrYSBLdW9wcGFsYSB3cm90ZToKPj4gRml4IGRpdmlkZSBieSB6ZXJvIGlmIHdlIGVuZCB1cCB1 cGRhdGluZyB0aGUgd2F0ZXJtYXJrcwo+PiB3aXRoIHplcm8gZG90Y2xvY2suCj4+IAo+PiBUaGlz IGlzIGEgc3RvcCBnYXAgbWVhc3VyZSB0byBhbGxvdyBtb2R1bGUgbG9hZCBpbiBjYXNlcwo+PiB3 aGVyZSBvdXIgc3RhdGUga2VlcGluZyBmYWlscy4KPj4gCj4+IHYyOiBXQVJOX09OIGFkZGVkIChQ YXVsbykKPj4gCj4+IENjOiBQYXVsbyBaYW5vbmkgPHByemFub25pQGdtYWlsLmNvbT4KPj4gQ2M6 IERhbWllbiBMZXNwaWF1IDxkYW1pZW4ubGVzcGlhdUBpbnRlbC5jb20+Cj4+IFNpZ25lZC1vZmYt Ynk6IE1pa2EgS3VvcHBhbGEgPG1pa2Eua3VvcHBhbGFAaW50ZWwuY29tPgo+Cj4gSSB3YW50IHRv IHNheSBhIGxvYWRpbmcgbW9kdWxlIGlzIG1vcmUgaW1wb3J0YW50IHRoYW4gYSBwcm9wZXIgZml4 LCBzbzoKCkFueSBpZGVhcyBvbiB0aGUgcHJvcGVyIGZpeD8gUGF0Y2hlcyBvbiB0aGUgbGlzdCwg c2tldGNoZXMgb24gYSBwb3N0LWl0LAphbnl0aGluZz8gSSd2ZSBnb3QgYSBtYWNoaW5lIGhlcmUg aGl0dGluZyB0aGlzLgoKQlIsCkphbmkuCgoKPgo+IFJldmlld2VkLWJ5OiBEYW1pZW4gTGVzcGlh dSA8ZGFtaWVuLmxlc3BpYXVAaW50ZWwuY29tPgo+Cj4gLS0gCj4gRGFtaWVuCj4KPj4gLS0tCj4+ ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wbS5jIHwgNCArKystCj4+ICAxIGZpbGUgY2hh bmdlZCwgMyBpbnNlcnRpb25zKCspLCAxIGRlbGV0aW9uKC0pCj4+IAo+PiBkaWZmIC0tZ2l0IGEv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcG0uYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2lu dGVsX3BtLmMKPj4gaW5kZXggNWVlZGRjOS4uMGQzZTAxNCAxMDA2NDQKPj4gLS0tIGEvZHJpdmVy cy9ncHUvZHJtL2k5MTUvaW50ZWxfcG0uYwo+PiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9p bnRlbF9wbS5jCj4+IEBAIC0zMzE2LDggKzMzMTYsMTAgQEAgc2tsX2NvbXB1dGVfbGluZXRpbWVf d20oc3RydWN0IGRybV9jcnRjICpjcnRjLCBzdHJ1Y3Qgc2tsX3BpcGVfd21fcGFyYW1ldGVycyAq cCkKPj4gIAlpZiAoIXRvX2ludGVsX2NydGMoY3J0YyktPmFjdGl2ZSkKPj4gIAkJcmV0dXJuIDA7 Cj4+ICAKPj4gLQlyZXR1cm4gRElWX1JPVU5EX1VQKDggKiBwLT5waXBlX2h0b3RhbCAqIDEwMDAs IHAtPnBpeGVsX3JhdGUpOwo+PiArCWlmIChXQVJOX09OKHAtPnBpeGVsX3JhdGUgPT0gMCkpCj4+ ICsJCXJldHVybiAwOwo+PiAgCj4+ICsJcmV0dXJuIERJVl9ST1VORF9VUCg4ICogcC0+cGlwZV9o dG90YWwgKiAxMDAwLCBwLT5waXhlbF9yYXRlKTsKPj4gIH0KPj4gIAo+PiAgc3RhdGljIHZvaWQg c2tsX2NvbXB1dGVfdHJhbnNpdGlvbl93bShzdHJ1Y3QgZHJtX2NydGMgKmNydGMsCj4+IC0tIAo+ PiAyLjEuNAo+PiAKPiBfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwo+IEludGVsLWdmeCBtYWlsaW5nIGxpc3QKPiBJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0 b3Aub3JnCj4gaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2lu dGVsLWdmeAoKLS0gCkphbmkgTmlrdWxhLCBJbnRlbCBPcGVuIFNvdXJjZSBUZWNobm9sb2d5IENl bnRlcgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRl bC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDov L2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=