From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tvrtko Ursulin Subject: Re: [RFC 1/2] drm/i915: Move ioremap_wc tracking onto VMA Date: Wed, 13 Apr 2016 09:45:03 +0100 Message-ID: <570E070F.7090709@linux.intel.com> References: <1460476612-10427-1-git-send-email-tvrtko.ursulin@linux.intel.com> <20160412162137.GD21985@nuc-i3427.alporthouse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTP id B845D6E372 for ; Wed, 13 Apr 2016 08:45:05 +0000 (UTC) In-Reply-To: <20160412162137.GD21985@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 , Intel-gfx@lists.freedesktop.org, Tvrtko Ursulin List-Id: intel-gfx@lists.freedesktop.org Ck9uIDEyLzA0LzE2IDE3OjIxLCBDaHJpcyBXaWxzb24gd3JvdGU6Cj4gT24gVHVlLCBBcHIgMTIs IDIwMTYgYXQgMDQ6NTY6NTFQTSArMDEwMCwgVHZydGtvIFVyc3VsaW4gd3JvdGU6Cj4+IEZyb206 IENocmlzIFdpbHNvbiA8Y2hyaXNAY2hyaXMtd2lsc29uLmNvLnVrPgo+Pgo+PiBCeSB0cmFja2lu ZyB0aGUgaW9tYXBwaW5nIG9uIHRoZSBWTUEgaXRzZWxmLCB3ZSBjYW4gc2hhcmUgdGhhdCBhcmVh Cj4+IGJldHdlZW4gbXVsdGlwbGUgdXNlcnMuIEFsc28gYnkgb25seSByZXZva2luZyB0aGUgaW9t YXBwaW5nIHVwb24KPj4gdW5iaW5kaW5nIGZyb20gdGhlIG1hcHBhYmxlIHBvcnRpb24gb2YgdGhl IEdHVFQsIHdlIGNhbiBrZWVwIHRoYXQgaW9tYXAKPj4gYWNyb3NzIG11bHRpcGxlIGludm9jYXRp b25zIChlLmcuIGV4ZWNsaXN0cyBjb250ZXh0IHBpbm5pbmcpLgo+Pgo+PiB2MjoKPj4gICAgKiBS ZWJhc2Ugb24gbmlnaHRseTsKPj4gICAgKiBhZGRlZCBrZXJuZWxkb2MuIChUdnJ0a28gVXJzdWxp bikKPj4KPj4gU2lnbmVkLW9mZi1ieTogQ2hyaXMgV2lsc29uIDxjaHJpc0BjaHJpcy13aWxzb24u Y28udWs+Cj4+IFNpZ25lZC1vZmYtYnk6IFR2cnRrbyBVcnN1bGluIDx0dnJ0a28udXJzdWxpbkBp bnRlbC5jb20+Cj4+IC0tLQo+PiAgIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtLmMgICAg IHwgIDIgKysKPj4gICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbV9ndHQuYyB8IDM4ICsr KysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysKPj4gICBkcml2ZXJzL2dwdS9kcm0v aTkxNS9pOTE1X2dlbV9ndHQuaCB8IDM4ICsrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysrKysKPj4gICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9mYmRldi5jICB8ICA4ICsrKy0t LS0tCj4+ICAgNCBmaWxlcyBjaGFuZ2VkLCA4MSBpbnNlcnRpb25zKCspLCA1IGRlbGV0aW9ucygt KQo+Pgo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW0uYyBiL2Ry aXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtLmMKPj4gaW5kZXggYjM3ZmZlYThiNDU4Li42YTQ4 NTYzMDU5NWUgMTAwNjQ0Cj4+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtLmMK Pj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW0uYwo+PiBAQCAtMzM5Myw2ICsz MzkzLDggQEAgc3RhdGljIGludCBfX2k5MTVfdm1hX3VuYmluZChzdHJ1Y3QgaTkxNV92bWEgKnZt YSwgYm9vbCB3YWl0KQo+PiAgIAkJcmV0ID0gaTkxNV9nZW1fb2JqZWN0X3B1dF9mZW5jZShvYmop Owo+PiAgIAkJaWYgKHJldCkKPj4gICAJCQlyZXR1cm4gcmV0Owo+PiArCj4+ICsJCWk5MTVfdm1h X2lvdW5tYXAodm1hKTsKPj4gICAJfQo+Pgo+PiAgIAl0cmFjZV9pOTE1X3ZtYV91bmJpbmQodm1h KTsKPj4gZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtX2d0dC5jIGIv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fZ3R0LmMKPj4gaW5kZXggYzVjYjA0OTA3NTI1 Li5iMmE4YTE0ZThkY2IgMTAwNjQ0Cj4+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVf Z2VtX2d0dC5jCj4+ICsrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtX2d0dC5jCj4+ IEBAIC0zNjI2LDMgKzM2MjYsNDEgQEAgaTkxNV9nZ3R0X3ZpZXdfc2l6ZShzdHJ1Y3QgZHJtX2k5 MTVfZ2VtX29iamVjdCAqb2JqLAo+PiAgIAkJcmV0dXJuIG9iai0+YmFzZS5zaXplOwo+PiAgIAl9 Cj4+ICAgfQo+PiArCj4+ICt2b2lkICppOTE1X3ZtYV9pb21hcChzdHJ1Y3QgZHJtX2k5MTVfcHJp dmF0ZSAqZGV2X3ByaXYsCj4+ICsJCSAgICAgc3RydWN0IGk5MTVfdm1hICp2bWEpCj4+ICt7Cj4+ ICsJc3RydWN0IGRybV9pOTE1X2dlbV9vYmplY3QgKm9iaiA9IHZtYS0+b2JqOwo+PiArCXN0cnVj dCBpOTE1X2dndHQgKmdndHQgPSAmZGV2X3ByaXYtPmdndHQ7Cj4+ICsKPj4gKwlpZiAoV0FSTl9P Tighb2JqLT5tYXBfYW5kX2ZlbmNlYWJsZSkpCj4+ICsJCXJldHVybiBFUlJfUFRSKC1FTk9ERVYp Owo+PiArCj4+ICsJQlVHX09OKCF2bWEtPmlzX2dndHQpOwo+PiArCUJVR19PTih2bWEtPmdndHRf dmlldy50eXBlICE9IEk5MTVfR0dUVF9WSUVXX05PUk1BTCk7Cj4+ICsJQlVHX09OKCh2bWEtPmJv dW5kICYgR0xPQkFMX0JJTkQpID09IDApOwo+PiArCj4+ICsJaWYgKHZtYS0+aW9tYXAgPT0gTlVM TCkgewo+PiArCQl2b2lkICpwdHI7Cj4KPiBXZSBjb3VsZCBleHRyYWN0IGdndHQgZnJvbSB0aGUg aXNfZ2d0dCB2bWEtPnZtIHRoYXQgd291bGQgcmVtb3ZlIHRoZQo+IGRldl9wcml2IHBhcmFtZXRl ciBhbmQgbWFrZSB0aGUgY2FsbGVycyBhIGJpdCB0aWRpZXIuCj4KPiBzdGF0aWMgaW5saW5lIHN0 cnVjdCBpOTE1X2dndHQgKnRvX2dndHQoc3RydWN0IGk5MTVfYWRkcmVzc19zcGFjZSAqdm0pCj4g ewo+IAlCVUdfT04oIWk5MTVfaXNfZ2d0dCh2bSkpOwo+IAlyZXR1cm4gY29udGFpbmVyX29mKHZt LCBzdHJ1Y3QgaTkxNV9nZ3R0LCBiYXNlKTsKPiB9Cj4KPj4gKwo+PiArCQlwdHIgPSBpb3JlbWFw X3djKGdndHQtPm1hcHBhYmxlX2Jhc2UgKyB2bWEtPm5vZGUuc3RhcnQsCj4+ICsJCQkJIG9iai0+ YmFzZS5zaXplKTsKPj4gKwkJaWYgKHB0ciA9PSBOVUxMKSB7Cj4+ICsJCQlpbnQgcmV0Owo+PiAr Cj4+ICsJCQkvKiBUb28gbWFueSBhcmVhcyBhbHJlYWR5IGFsbG9jYXRlZD8gKi8KPj4gKwkJCXJl dCA9IGk5MTVfZ2VtX2V2aWN0X3ZtKHZtYS0+dm0sIHRydWUpOwo+PiArCQkJaWYgKHJldCkKPj4g KwkJCQlyZXR1cm4gRVJSX1BUUihyZXQpOwo+PiArCj4+ICsJCQlwdHIgPSBpb3JlbWFwX3djKGdn dHQtPm1hcHBhYmxlX2Jhc2UgKyB2bWEtPm5vZGUuc3RhcnQsCj4+ICsJCQkJCSBvYmotPmJhc2Uu c2l6ZSk7Cj4KPiBObywgd2UgcmVhbGx5IGRvbid0IHdhbnQgdG8gY3JlYXRlIGEgbmV3IGlvcmVt YXAgZm9yIGV2ZXJ5IGNhbGxlciB3aGVuCj4gd2UgYWxyZWFkeSBoYXZlIG9uZSwgZ2d0dC0+bWFw cGFibGUuIEhlbmNlLAo+ICAgICAgaW8tbWFwcGluZzogU3BlY2lmeSBtYXBwaW5nIHNpemUgZm9y IGlvX21hcHBpbmdfbWFwX3djCj4gYmVpbmcgaXRzIHByZWNlZWRpbmcgcGF0Y2guIFRoZSBkaWZm ZXJlbmNlIGlzIGh1Z2Ugb24gQnJhc3dlbGwuCgpJIHdhcyBmb2xsb3dpbmcgdGhlIHByaW5jaXBs ZSBvZiBsZWFzdCBjaGFuZ2UgZm9yIHRoaXMgb25lIHNpbmNlIGl0IGRvZXMgCnJlbWFpbiB0aGUg c2FtZSBpbiB0aGF0IHJlc3BlY3QgYXMgdGhlIGN1cnJlbnQgY29kZS4gR29hbCB3YXMgdG8gdW5i bG9jayAKdGhlIEd1QyBlYXJseSB1bnBpbiAvIGV4ZWNsaXN0IG5vIHJldGlyZWQgcXVldWUgc2Vy aWVzIGFuZCBub3QgZ2V0IGludG8gCnRoZSB0cmFwIG9mIGluZmxhdGluZyB0aGUgZGVwZW5kZW5j aWVzIHRvbyBtdWNoLiBJIHRob3VnaHQgdG8gYWRkIHRoaXMgCmFuZCBkZWZhdWx0IGNvbnRleHQg Y2xlYW51cCBidXQgeW91IGtlZXAgYWRkaW5nIHRoaW5ncyB0byB0aGUgcGlsZS4gOikKCkknbGwg aGF2ZSBhIGxvb2sgYXQgeW91ciBpb19tYXBwaW5nIHN0dWZmIHRvIHNlZSBob3cgbXVjaCBpdCB3 b3VsZCBhZGQgCnRvIHRoZSBzZXJpZXMuIFJlbWVtYmVyIEkgc2FpZCBJJ2xsIGFkZCB0aGUgc3Rh YmxlIGN0eCBpZCBwYXRjaGVzIGFzIAp3ZWxsLiBEbyB3ZSBuZWVkIHRvIGNvbWUgdXAgd2l0aCBh IHBsYW4gaGVyZT8KCkkgY291bGQgaGF2ZSB0d28gc2VwYXJhdGUgc2VyaWVzIHRvIHNpbXBsaWZ5 IGRlcGVuZGVuY2llcyBhIGJpdDoKCiAgMS4gR3VDIHByZW1hdHVyZSB1bnBpbiBhbmQKICAyLiBl eGVjbGlzdCBubyByZXRpcmVkIHF1ZXVlLgoKVGhlIHN0YWNrIGZvciB0aGUgZmlyc3Qgb25lIGNv dWxkIGxvb2sgbGlrZSAobm90IGFzIHBhdGNoZXMgYnV0IApjb25jZXB0dWFsbHkpOgoKICAxLiBk ZWZhdWx0IGNvbnRleHQgY2xlYW51cAogIDIuIGFueSBpb19tYXBwaW5nIHBhdGNoZXMgb2YgeW91 cnMKICAzLiBpOTE1X3ZtYV9pb21hcCBvciBXQyBwaW5fbWFwIGFzIHlvdSBzdWdnZXN0ZWQgaW4g dGhlIG90aGVyIHJlcGx5LgogIDQuIHByZXZpb3VzIC8gcGlubmVkIGNvbnRleHQKCkV4ZWNsaXN0 IG5vIHJldGlyZWQgcXVldWUgd291bGQgdGhlbiBiZToKCiAgMS4gc3RhYmxlIGN0eCBpZAogIDIu IHJlbW92YWwgb2YgaTkxNV9nZW1fcmVxdWVzdF91bnJlZmVyZW5jZV9fdW5sb2NrZWQKICAzLiBl eGVjbGlzdCBubyByZXRpcmVkIHF1ZXVlCgpJZiBJIGRpZCBub3QgZm9yZ2V0IGFib3V0IHNvbWV0 aGluZy4KCkF0IGFueSBwb2ludCBpbiBhbnkgc2VyaWVzIHdlIGNvdWxkIGFkZCB0aGluZ3MgbGlr ZSBpOTE1X2dlbV9yZXF1ZXN0LmMgCm9yIHRob3NlIHBhdGNoZXMgd2hpY2ggbW92ZSBhcm91bmQg dGhlIGNvbnRleHQgaW5pdC4KClJlZ2FyZHMsCgpUdnJ0a28KX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJbnRlbC1n ZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21h aWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==