From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH] drm/i915: Simplify the way BC bifurcation state consistency is kept Date: Wed, 11 Mar 2015 14:24:02 +0200 Message-ID: <20150311122402.GR11371@intel.com> References: <20150310191410.GV3800@phenom.ffwll.local> <1426073743-30724-1-git-send-email-ander.conselvan.de.oliveira@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 57B0A6E83F for ; Wed, 11 Mar 2015 05:24:16 -0700 (PDT) Content-Disposition: inline In-Reply-To: <1426073743-30724-1-git-send-email-ander.conselvan.de.oliveira@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Ander Conselvan de Oliveira Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gV2VkLCBNYXIgMTEsIDIwMTUgYXQgMDE6MzU6NDNQTSArMDIwMCwgQW5kZXIgQ29uc2VsdmFu IGRlIE9saXZlaXJhIHdyb3RlOgo+IFJlbW92ZSB0aGUgZ2xvYmFsIG1vZGVzZXQgcmVzb3VyY2Ug ZnVuY3Rpb24gdGhhdCB3b3VsZCBkaXNhYmxlIHRoZQo+IGJpZnVyY2F0aW9uIGJpdCwgYW5kIGlu c3RlYWQgZW5hYmxlL2Rpc2FibGUgaXQgd2hlbiBlbmFibGluZyB0aGUgcGNoCj4gdHJhbnNjb2Rl ci4gVGhlIG1vZGUgc2V0IGNvbnNpc3RlbmN5IGNoZWNrIHNob3VsZCBwcmV2ZW50IHVzIGZyb20K PiBkaXNhYmxpbmcgdGhlIGJpdCBpZiBwaXBlIEMgaXMgZW5hYmxlZCBzbyB0aGUgY2hhbmdlIHNo b3VsZCBiZSBzYWZlLgo+IAo+IE5vdGUgdGhhdCB0aGlzIGRvZW5zJ3QgYWZmZWN0IHRoZSBsb2dp YyB0aGF0IHByZXZlbnRzIHRoZSBiaXQgYmVpbmcKPiBzZXQgd2hpbGUgYSBwaXBlIGlzIGFjdGl2 ZSwgc2luY2UgdGhlIHBhdGNoIHJldGFpbnMgdGhlIGJlaGF2aW9yIG9mCj4gb25seSBjaGFnaW5n IHRoZSBiaXQgaWYgbmVjZXNzYXJ5LiBCZWNhdXNlIG9mIHRoZSBjaGVja3MgZHVyaW5nIG1vZGUK PiBzZXQsIHRoZSBmaXJzdCBjaGFuZ2Ugd291bGQgbmVjZXNzYXJpbHkgaGFwcGVuIHdpdGggYm90 aCBwaXBlcyBCIGFuZAo+IEMgZGlzYWJsZWQsIGFuZCBhbnkgc3Vic2VxdWVudCB3cml0ZSB3b3Vs ZCBiZSBza2lwcGVkLgo+IAo+IHYyOiBPbmx5IGNoYW5nZSB0aGUgYml0IGR1cmluZyBwY2ggdHJh bmNvZGVyIGVuYWJsZS4gKFZpbGxlKQoKCkFjdHVhbGx5IHdoYXQgSSBoYWQgaW5iIG1pbmQgd2Fz IHNvbWV0aGluZyBsaWtlIHRoaXM6CgpwY2hfZW5hYmxlKCkKewoJaWYgKHBpcGUgPT0gQiAmJiBm ZGlfbGFuZXMgPiAyKQoJCWRpc2FibGVfYmlmdXJjYXRpb24oKQoJLi4uCn0KCnBjaF9kaXNhYmxl KCkKewoJLi4uCglpZiAocGlwZSA9PSBCICYmIGZkaV9sYW5lcyA+IDIpCgkJZW5hYmxlX2JpZnVy Y2F0aW9uKCkKfQoKU28gd2Ugb25seSBjaGFuZ2UgaXQgd2hlbiBlbmFibGluZy9kaXNhYmxpbmcg cGlwZSBCLCBuZXZlciBmb3IgcGlwZSBDLgpIZW5jZSBpdCByZW1haW5zIGVuYWJsZWQgd2hlbmV2 ZXIgcGlwZSBCIGRvZXNuJ3QgbmVlZCA+MiBGREkgbGFuZXMuCgoKPiAtLS0KPiAgZHJpdmVycy9n cHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jIHwgNDYgKysrKysrKystLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tCj4gIDEgZmlsZSBjaGFuZ2VkLCAxMCBpbnNlcnRpb25zKCspLCAzNiBkZWxl dGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlz cGxheS5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jCj4gaW5kZXggNDAw OGJmNC4uYmZiZDgyOSAxMDA2NDQKPiAtLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9k aXNwbGF5LmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9kaXNwbGF5LmMKPiBA QCAtMzE1MywzMiArMzE1Myw2IEBAIHN0YXRpYyBib29sIHBpcGVfaGFzX2VuYWJsZWRfcGNoKHN0 cnVjdCBpbnRlbF9jcnRjICpjcnRjKQo+ICAJcmV0dXJuIGNydGMtPmJhc2Uuc3RhdGUtPmVuYWJs ZSAmJiBjcnRjLT5jb25maWctPmhhc19wY2hfZW5jb2RlcjsKPiAgfQo+ICAKPiAtc3RhdGljIHZv aWQgaXZiX21vZGVzZXRfZ2xvYmFsX3Jlc291cmNlcyhzdHJ1Y3QgZHJtX2RldmljZSAqZGV2KQo+ IC17Cj4gLQlzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYgPSBkZXYtPmRldl9wcml2 YXRlOwo+IC0Jc3RydWN0IGludGVsX2NydGMgKnBpcGVfQl9jcnRjID0KPiAtCQl0b19pbnRlbF9j cnRjKGRldl9wcml2LT5waXBlX3RvX2NydGNfbWFwcGluZ1tQSVBFX0JdKTsKPiAtCXN0cnVjdCBp bnRlbF9jcnRjICpwaXBlX0NfY3J0YyA9Cj4gLQkJdG9faW50ZWxfY3J0YyhkZXZfcHJpdi0+cGlw ZV90b19jcnRjX21hcHBpbmdbUElQRV9DXSk7Cj4gLQl1aW50MzJfdCB0ZW1wOwo+IC0KPiAtCS8q Cj4gLQkgKiBXaGVuIGV2ZXJ5dGhpbmcgaXMgb2ZmIGRpc2FibGUgZmRpIEMgc28gdGhhdCB3ZSBj b3VsZCBlbmFibGUgZmRpIEIKPiAtCSAqIHdpdGggYWxsIGxhbmVzLiBOb3RlIHRoYXQgd2UgZG9u J3QgY2FyZSBhYm91dCBlbmFibGVkIHBpcGVzIHdpdGhvdXQKPiAtCSAqIGFuIGVuYWJsZWQgcGNo IGVuY29kZXIuCj4gLQkgKi8KPiAtCWlmICghcGlwZV9oYXNfZW5hYmxlZF9wY2gocGlwZV9CX2Ny dGMpICYmCj4gLQkgICAgIXBpcGVfaGFzX2VuYWJsZWRfcGNoKHBpcGVfQ19jcnRjKSkgewo+IC0J CVdBUk5fT04oSTkxNV9SRUFEKEZESV9SWF9DVEwoUElQRV9CKSkgJiBGRElfUlhfRU5BQkxFKTsK PiAtCQlXQVJOX09OKEk5MTVfUkVBRChGRElfUlhfQ1RMKFBJUEVfQykpICYgRkRJX1JYX0VOQUJM RSk7Cj4gLQo+IC0JCXRlbXAgPSBJOTE1X1JFQUQoU09VVEhfQ0hJQ0tFTjEpOwo+IC0JCXRlbXAg Jj0gfkZESV9CQ19CSUZVUkNBVElPTl9TRUxFQ1Q7Cj4gLQkJRFJNX0RFQlVHX0tNUygiZGlzYWJs aW5nIGZkaSBDIHJ4XG4iKTsKPiAtCQlJOTE1X1dSSVRFKFNPVVRIX0NISUNLRU4xLCB0ZW1wKTsK PiAtCX0KPiAtfQo+IC0KPiAgLyogVGhlIEZESSBsaW5rIHRyYWluaW5nIGZ1bmN0aW9ucyBmb3Ig SUxLL0liZXhwZWFrLiAqLwo+ICBzdGF0aWMgdm9pZCBpcm9ubGFrZV9mZGlfbGlua190cmFpbihz dHJ1Y3QgZHJtX2NydGMgKmNydGMpCj4gIHsKPiBAQCAtMzgzNCwyMCArMzgwOCwyMyBAQCBzdGF0 aWMgdm9pZCBpcm9ubGFrZV9wY2hfdHJhbnNjb2Rlcl9zZXRfdGltaW5ncyhzdHJ1Y3QgaW50ZWxf Y3J0YyAqY3J0YywKPiAgCQkgICBJOTE1X1JFQUQoVlNZTkNTSElGVChjcHVfdHJhbnNjb2Rlcikp KTsKPiAgfQo+ICAKPiAtc3RhdGljIHZvaWQgY3B0X2VuYWJsZV9mZGlfYmNfYmlmdXJjYXRpb24o c3RydWN0IGRybV9kZXZpY2UgKmRldikKPiArc3RhdGljIHZvaWQgY3B0X3NldF9mZGlfYmNfYmlm dXJjYXRpb24oc3RydWN0IGRybV9kZXZpY2UgKmRldiwgYm9vbCBlbmFibGUpCj4gIHsKPiAgCXN0 cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiA9IGRldi0+ZGV2X3ByaXZhdGU7Cj4gIAl1 aW50MzJfdCB0ZW1wOwo+ICAKPiAgCXRlbXAgPSBJOTE1X1JFQUQoU09VVEhfQ0hJQ0tFTjEpOwo+ IC0JaWYgKHRlbXAgJiBGRElfQkNfQklGVVJDQVRJT05fU0VMRUNUKQo+ICsJaWYgKCEhKHRlbXAg JiBGRElfQkNfQklGVVJDQVRJT05fU0VMRUNUKSA9PSBlbmFibGUpCj4gIAkJcmV0dXJuOwo+ICAK PiAgCVdBUk5fT04oSTkxNV9SRUFEKEZESV9SWF9DVEwoUElQRV9CKSkgJiBGRElfUlhfRU5BQkxF KTsKPiAgCVdBUk5fT04oSTkxNV9SRUFEKEZESV9SWF9DVEwoUElQRV9DKSkgJiBGRElfUlhfRU5B QkxFKTsKPiAgCj4gLQl0ZW1wIHw9IEZESV9CQ19CSUZVUkNBVElPTl9TRUxFQ1Q7Cj4gLQlEUk1f REVCVUdfS01TKCJlbmFibGluZyBmZGkgQyByeFxuIik7Cj4gKwl0ZW1wICY9IH5GRElfQkNfQklG VVJDQVRJT05fU0VMRUNUOwo+ICsJaWYgKGVuYWJsZSkKPiArCQl0ZW1wIHw9IEZESV9CQ19CSUZV UkNBVElPTl9TRUxFQ1Q7Cj4gKwo+ICsJRFJNX0RFQlVHX0tNUygiJXNhYmxpbmcgZmRpIEMgcnhc biIsIGVuYWJsZSA/ICJlbiIgOiAiZGlzIik7Cj4gIAlJOTE1X1dSSVRFKFNPVVRIX0NISUNLRU4x LCB0ZW1wKTsKPiAgCVBPU1RJTkdfUkVBRChTT1VUSF9DSElDS0VOMSk7Cj4gIH0KPiBAQCAtMzg1 NSwyMCArMzgzMiwxOSBAQCBzdGF0aWMgdm9pZCBjcHRfZW5hYmxlX2ZkaV9iY19iaWZ1cmNhdGlv bihzdHJ1Y3QgZHJtX2RldmljZSAqZGV2KQo+ICBzdGF0aWMgdm9pZCBpdnlicmlkZ2VfdXBkYXRl X2ZkaV9iY19iaWZ1cmNhdGlvbihzdHJ1Y3QgaW50ZWxfY3J0YyAqaW50ZWxfY3J0YykKPiAgewo+ ICAJc3RydWN0IGRybV9kZXZpY2UgKmRldiA9IGludGVsX2NydGMtPmJhc2UuZGV2Owo+IC0Jc3Ry dWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2ID0gZGV2LT5kZXZfcHJpdmF0ZTsKPiAgCj4g IAlzd2l0Y2ggKGludGVsX2NydGMtPnBpcGUpIHsKPiAgCWNhc2UgUElQRV9BOgo+ICAJCWJyZWFr Owo+ICAJY2FzZSBQSVBFX0I6Cj4gIAkJaWYgKGludGVsX2NydGMtPmNvbmZpZy0+ZmRpX2xhbmVz ID4gMikKPiAtCQkJV0FSTl9PTihJOTE1X1JFQUQoU09VVEhfQ0hJQ0tFTjEpICYgRkRJX0JDX0JJ RlVSQ0FUSU9OX1NFTEVDVCk7Cj4gKwkJCWNwdF9zZXRfZmRpX2JjX2JpZnVyY2F0aW9uKGRldiwg ZmFsc2UpOwo+ICAJCWVsc2UKPiAtCQkJY3B0X2VuYWJsZV9mZGlfYmNfYmlmdXJjYXRpb24oZGV2 KTsKPiArCQkJY3B0X3NldF9mZGlfYmNfYmlmdXJjYXRpb24oZGV2LCB0cnVlKTsKPiAgCj4gIAkJ YnJlYWs7Cj4gIAljYXNlIFBJUEVfQzoKPiAtCQljcHRfZW5hYmxlX2ZkaV9iY19iaWZ1cmNhdGlv bihkZXYpOwo+ICsJCWNwdF9zZXRfZmRpX2JjX2JpZnVyY2F0aW9uKGRldiwgdHJ1ZSk7Cj4gIAo+ ICAJCWJyZWFrOwo+ICAJZGVmYXVsdDoKPiBAQCAtMTMwNTYsOCArMTMwMzIsNiBAQCBzdGF0aWMg dm9pZCBpbnRlbF9pbml0X2Rpc3BsYXkoc3RydWN0IGRybV9kZXZpY2UgKmRldikKPiAgCX0gZWxz ZSBpZiAoSVNfSVZZQlJJREdFKGRldikpIHsKPiAgCQkvKiBGSVhNRTogZGV0ZWN0IEIwKyBzdGVw cGluZyBhbmQgdXNlIGF1dG8gdHJhaW5pbmcgKi8KPiAgCQlkZXZfcHJpdi0+ZGlzcGxheS5mZGlf bGlua190cmFpbiA9IGl2Yl9tYW51YWxfZmRpX2xpbmtfdHJhaW47Cj4gLQkJZGV2X3ByaXYtPmRp c3BsYXkubW9kZXNldF9nbG9iYWxfcmVzb3VyY2VzID0KPiAtCQkJaXZiX21vZGVzZXRfZ2xvYmFs X3Jlc291cmNlczsKPiAgCX0gZWxzZSBpZiAoSVNfSEFTV0VMTChkZXYpIHx8IElTX0JST0FEV0VM TChkZXYpKSB7Cj4gIAkJZGV2X3ByaXYtPmRpc3BsYXkuZmRpX2xpbmtfdHJhaW4gPSBoc3dfZmRp X2xpbmtfdHJhaW47Cj4gIAl9IGVsc2UgaWYgKElTX1ZBTExFWVZJRVcoZGV2KSkgewo+IC0tIAo+ IDIuMS4wCgotLSAKVmlsbGUgU3lyasOkbMOkCkludGVsIE9UQwpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVs LWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9t YWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=