From mboxrd@z Thu Jan 1 00:00:00 1970 From: Fernando Pacheco Subject: Re: [PATCH v2 2/5] drm/i915/uc: Reserve upper range of GGTT Date: Fri, 19 Apr 2019 10:14:21 -0700 Message-ID: <3230191c-30a3-cc85-aaa1-be726c1a17b6@intel.com> References: <20190418233151.17510-1-fernando.pacheco@intel.com> <20190418233151.17510-3-fernando.pacheco@intel.com> <155565806136.11309.12826651549197814390@skylake-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 94EDB892B6 for ; Fri, 19 Apr 2019 17:16:51 +0000 (UTC) In-Reply-To: <155565806136.11309.12826651549197814390@skylake-alporthouse-com> Content-Language: en-US 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 List-Id: intel-gfx@lists.freedesktop.org Ck9uIDQvMTkvMTkgMTI6MTQgQU0sIENocmlzIFdpbHNvbiB3cm90ZToKPiBRdW90aW5nIEZlcm5h bmRvIFBhY2hlY28gKDIwMTktMDQtMTkgMDA6MzE6NDgpCj4+IEd1QyBhbmQgSHVDIGRlcGVuZCBv biBzdHJ1Y3RfbXV0ZXggZm9yIGRldmljZQo+PiByZWluaXRpYWxpemF0aW9uLiBNb3ZpbmcgYXdh eSBmcm9tIHRoaXMgZGVwZW5kZW5jeQo+PiByZXF1aXJlcyBwZXJtYS1waW5uaW5nIHRoZSBmaXJt d2FyZSBpbWFnZXMgaW4gR0dUVC4KPj4gVGhlIHVwcGVyIHBvcnRpb24gb2YgdGhlIEd1QyBhZGRy ZXNzIHNwYWNlIGhhcwo+PiBhIHNpemVhYmxlIGhvbGUgKHNldmVyYWwgTUIpIHRoYXQgaXMgaW5h Y2Nlc3NpYmxlCj4+IGJ5IEd1Qy4gUmVzZXJ2ZSB0aGlzIHJhbmdlIHdpdGhpbiBHR1RUIGFzIGl0 IGNhbgo+PiBjb21mb3J0YWJseSBob2xkIEd1Qy9IdUMgZmlybXdhcmUgaW1hZ2VzLgo+Pgo+PiB2 MjogUmVzZXJ2ZSBub2RlIHJhdGhlciB0aGFuIGluc2VydCAoQ2hyaXMpCj4+ICAgICBTaW1wbGVy IGRldGVybWluYXRpb24gb2Ygbm9kZSBzdGFydC9zaXplIChEYW5pZWxlKQo+PiAgICAgTW92ZSBy ZXNlcnZlL3JlbGVhc2Ugb3V0IHRvIGludGVsX2d1Yy4qIGZpbGVzCj4+Cj4+IFNpZ25lZC1vZmYt Ynk6IEZlcm5hbmRvIFBhY2hlY28gPGZlcm5hbmRvLnBhY2hlY29AaW50ZWwuY29tPgo+PiAtLS0K Pj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2VtX2d0dC5jIHwgMjUgKysrKysrKystLS0t LS0tLQo+PiAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fZ3R0LmggfCAgMSArCj4+ICBk cml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9ndWMuYyAgICB8IDQ1ICsrKysrKysrKysrKysrKysr KysrKysrKysrKysrCj4+ICBkcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9ndWMuaCAgICB8ICAy ICsrCj4+ICA0IGZpbGVzIGNoYW5nZWQsIDYwIGluc2VydGlvbnMoKyksIDEzIGRlbGV0aW9ucygt KQo+Pgo+PiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fZ3R0LmMg Yi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbV9ndHQuYwo+PiBpbmRleCA4ZjQ2MGNjNGNj MWYuLjBiNGMyMmU2ODU3NCAxMDA2NDQKPj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkx NV9nZW1fZ3R0LmMKPj4gKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9nZW1fZ3R0LmMK Pj4gQEAgLTI3NTIsNiArMjc1MiwxMiBAQCBpbnQgaTkxNV9nZW1faW5pdF9nZ3R0KHN0cnVjdCBk cm1faTkxNV9wcml2YXRlICpkZXZfcHJpdikKPj4gICAgICAgICBpZiAocmV0KQo+PiAgICAgICAg ICAgICAgICAgcmV0dXJuIHJldDsKPj4gIAo+PiArICAgICAgIGlmIChVU0VTX0dVQyhkZXZfcHJp dikpIHsKPj4gKyAgICAgICAgICAgICAgIHJldCA9IGludGVsX2d1Y19yZXNlcnZlX2dndHRfdG9w KCZkZXZfcHJpdi0+Z3VjKTsKPj4gKyAgICAgICAgICAgICAgIGlmIChyZXQpCj4+ICsgICAgICAg ICAgICAgICAgICAgICAgIGdvdG8gZXJyX3Jlc2VydmU7Cj4+ICsgICAgICAgfQo+PiArCj4+ICAg ICAgICAgLyogQ2xlYXIgYW55IG5vbi1wcmVhbGxvY2F0ZWQgYmxvY2tzICovCj4+ICAgICAgICAg ZHJtX21tX2Zvcl9lYWNoX2hvbGUoZW50cnksICZnZ3R0LT52bS5tbSwgaG9sZV9zdGFydCwgaG9s ZV9lbmQpIHsKPj4gICAgICAgICAgICAgICAgIERSTV9ERUJVR19LTVMoImNsZWFyaW5nIHVudXNl ZCBHVFQgc3BhY2U6IFslbHgsICVseF1cbiIsCj4+IEBAIC0yNzY2LDEyICsyNzcyLDE0IEBAIGlu dCBpOTE1X2dlbV9pbml0X2dndHQoc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2KQo+ PiAgICAgICAgIGlmIChJTlRFTF9QUEdUVChkZXZfcHJpdikgPT0gSU5URUxfUFBHVFRfQUxJQVNJ TkcpIHsKPj4gICAgICAgICAgICAgICAgIHJldCA9IGk5MTVfZ2VtX2luaXRfYWxpYXNpbmdfcHBn dHQoZGV2X3ByaXYpOwo+PiAgICAgICAgICAgICAgICAgaWYgKHJldCkKPj4gLSAgICAgICAgICAg ICAgICAgICAgICAgZ290byBlcnI7Cj4+ICsgICAgICAgICAgICAgICAgICAgICAgIGdvdG8gZXJy X2FwcGd0dDsKPj4gICAgICAgICB9Cj4+ICAKPj4gICAgICAgICByZXR1cm4gMDsKPj4gIAo+PiAt ZXJyOgo+PiArZXJyX2FwcGd0dDoKPj4gKyAgICAgICBpbnRlbF9ndWNfcmVsZWFzZV9nZ3R0X3Rv cCgmZGV2X3ByaXYtPmd1Yyk7Cj4+ICtlcnJfcmVzZXJ2ZToKPj4gICAgICAgICBkcm1fbW1fcmVt b3ZlX25vZGUoJmdndHQtPmVycm9yX2NhcHR1cmUpOwo+PiAgICAgICAgIHJldHVybiByZXQ7Cj4+ ICB9Cj4+IEBAIC0yNzk3LDYgKzI4MDUsOCBAQCB2b2lkIGk5MTVfZ2d0dF9jbGVhbnVwX2h3KHN0 cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdikKPj4gICAgICAgICBpZiAoZHJtX21tX25v ZGVfYWxsb2NhdGVkKCZnZ3R0LT5lcnJvcl9jYXB0dXJlKSkKPj4gICAgICAgICAgICAgICAgIGRy bV9tbV9yZW1vdmVfbm9kZSgmZ2d0dC0+ZXJyb3JfY2FwdHVyZSk7Cj4+ICAKPj4gKyAgICAgICBp bnRlbF9ndWNfcmVsZWFzZV9nZ3R0X3RvcCgmZGV2X3ByaXYtPmd1Yyk7Cj4+ICsKPj4gICAgICAg ICBpZiAoZHJtX21tX2luaXRpYWxpemVkKCZnZ3R0LT52bS5tbSkpIHsKPj4gICAgICAgICAgICAg ICAgIGludGVsX3ZndF9kZWJhbGxvb24oZGV2X3ByaXYpOwo+PiAgICAgICAgICAgICAgICAgaTkx NV9hZGRyZXNzX3NwYWNlX2ZpbmkoJmdndHQtPnZtKTsKPj4gQEAgLTMzNjksMTcgKzMzNzksNiBA QCBpbnQgaTkxNV9nZ3R0X3Byb2JlX2h3KHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJp dikKPj4gICAgICAgICBpZiAocmV0KQo+PiAgICAgICAgICAgICAgICAgcmV0dXJuIHJldDsKPj4g IAo+PiAtICAgICAgIC8qIFRyaW0gdGhlIEdHVFQgdG8gZml0IHRoZSBHdUMgbWFwcGFibGUgdXBw ZXIgcmFuZ2UgKHdoZW4gZW5hYmxlZCkuCj4+IC0gICAgICAgICogVGhpcyBpcyBlYXNpZXIgdGhh biBkb2luZyByYW5nZSByZXN0cmljdGlvbiBvbiB0aGUgZmx5LCBhcyB3ZQo+PiAtICAgICAgICAq IGN1cnJlbnRseSBkb24ndCBoYXZlIGFueSBiaXRzIHNwYXJlIHRvIHBhc3MgaW4gdGhpcyB1cHBl cgo+PiAtICAgICAgICAqIHJlc3RyaWN0aW9uIQo+PiAtICAgICAgICAqLwo+PiAtICAgICAgIGlm IChVU0VTX0dVQyhkZXZfcHJpdikpIHsKPj4gLSAgICAgICAgICAgICAgIGdndHQtPnZtLnRvdGFs ID0gbWluX3QodTY0LCBnZ3R0LT52bS50b3RhbCwgR1VDX0dHVFRfVE9QKTsKPj4gLSAgICAgICAg ICAgICAgIGdndHQtPm1hcHBhYmxlX2VuZCA9Cj4+IC0gICAgICAgICAgICAgICAgICAgICAgIG1p bl90KHU2NCwgZ2d0dC0+bWFwcGFibGVfZW5kLCBnZ3R0LT52bS50b3RhbCk7Cj4+IC0gICAgICAg fQo+PiAtCj4+ICAgICAgICAgaWYgKChnZ3R0LT52bS50b3RhbCAtIDEpID4+IDMyKSB7Cj4+ICAg ICAgICAgICAgICAgICBEUk1fRVJST1IoIldlIG5ldmVyIGV4cGVjdGVkIGEgR2xvYmFsIEdUVCB3 aXRoIG1vcmUgdGhhbiAzMmJpdHMiCj4+ICAgICAgICAgICAgICAgICAgICAgICAgICAgIiBvZiBh ZGRyZXNzIHNwYWNlISBGb3VuZCAlbGxkTSFcbiIsCj4+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pOTE1X2dlbV9ndHQuaCBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZ2Vt X2d0dC5oCj4+IGluZGV4IGY1OTdmMzViMTA5Yi4uYjUxZTc3OTczMmMzIDEwMDY0NAo+PiAtLS0g YS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2dlbV9ndHQuaAo+PiArKysgYi9kcml2ZXJzL2dw dS9kcm0vaTkxNS9pOTE1X2dlbV9ndHQuaAo+PiBAQCAtMzg0LDYgKzM4NCw3IEBAIHN0cnVjdCBp OTE1X2dndHQgewo+PiAgICAgICAgIHUzMiBwaW5fYmlhczsKPj4gIAo+PiAgICAgICAgIHN0cnVj dCBkcm1fbW1fbm9kZSBlcnJvcl9jYXB0dXJlOwo+PiArICAgICAgIHN0cnVjdCBkcm1fbW1fbm9k ZSB1Y19mdzsKPj4gIH07Cj4+ICAKPj4gIHN0cnVjdCBpOTE1X2h3X3BwZ3R0IHsKPj4gZGlmZiAt LWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2d1Yy5jIGIvZHJpdmVycy9ncHUvZHJt L2k5MTUvaW50ZWxfZ3VjLmMKPj4gaW5kZXggZDgxYTAyYjBmNTI1Li5kZGQyNDZkYzNmMTQgMTAw NjQ0Cj4+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2d1Yy5jCj4+ICsrKyBiL2Ry aXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX2d1Yy5jCj4+IEBAIC03MjEsMyArNzIxLDQ4IEBAIHUz MiBpbnRlbF9ndWNfcmVzZXJ2ZWRfZ3R0X3NpemUoc3RydWN0IGludGVsX2d1YyAqZ3VjKQo+PiAg ewo+PiAgICAgICAgIHJldHVybiBndWNfdG9faTkxNShndWMpLT53b3BjbS5ndWMuc2l6ZTsKPj4g IH0KPj4gKwo+PiArc3RhdGljIHUzMiBfX2ludGVsX2d1Y19nZ3R0X3RvcF9vZmZzZXQoc3RydWN0 IGludGVsX2d1YyAqZ3VjKQo+PiArewo+PiArICAgICAgIHN0cnVjdCBkcm1faTkxNV9wcml2YXRl ICppOTE1ID0gZ3VjX3RvX2k5MTUoZ3VjKTsKPj4gKyAgICAgICBzdHJ1Y3QgaTkxNV9nZ3R0ICpn Z3R0ID0gJmk5MTUtPmdndHQ7Cj4+ICsgICAgICAgc3RydWN0IGludGVsX2h1YyAqaHVjID0gJmk5 MTUtPmh1YzsKPj4gKyAgICAgICB1MzIgZ3VjX2Z3X3NpemUsIGh1Y19md19zaXplOwo+PiArICAg ICAgIHUzMiBtaW5fcmVzZXJ2ZWRfc2l6ZTsKPj4gKwo+PiArICAgICAgIGd1Y19md19zaXplID0g cm91bmRfdXAoZ3VjLT5mdy5zaXplLCBJOTE1X0dUVF9QQUdFX1NJWkUpOwo+PiArICAgICAgIGh1 Y19md19zaXplID0gcm91bmRfdXAoaHVjLT5mdy5zaXplLCBJOTE1X0dUVF9QQUdFX1NJWkUpOwo+ PiArCj4+ICsgICAgICAgbWluX3Jlc2VydmVkX3NpemUgPSBndWNfZndfc2l6ZSArIGh1Y19md19z aXplOwo+IEluIHRoaXMgcGF0Y2gsIHlvdSBzaG91bGQgb25seSBiZSB1c2luZyBHVUNfR0dUVF9U T1Agc28gdGhhdCB0aGUgb25seQo+IGNoYW5nZSBpcyBmcm9tIGV4Y2x1ZGluZyB0aGUgem9uZSB0 byB1c2luZyBhIHJlc2VydmVkIG5vZGUuCj4KPgo+IFNvIHdoeSByZXNlcnZlIHJvb20gZm9yIGJv dGggZnc/IFlvdSBzaG91bGQgb25seSBiZSBiaW5kaW5nIHRoZW0gZm9yIHRoZQo+IHhmZXIgKHNv IHRoYXQgeW91IGRvIG5vdCBoYXZlIHRvIGluc2VydCBleHRyYW5lb3VzIGNvZGUgb3V0c2lkZSBv Zgo+IHJlc2V0KS4KClNvcnJ5LiBJdCB0b29rIGEgd2hpbGUgdG8gdW5kZXJzdGFuZCB0aGUgbGFy Z2VyIHBvaW50IHlvdSB3ZXJlIG1ha2luZwppbiB0aGUgZmlyc3QgdmVyc2lvbiBvZiB0aGVzZSBw YXRjaGVzLiBZb3UncmUgcmlnaHQuIElmIEkgb25seSBiaW5kIHRoZW0gZm9yIHRoZQp0cmFuc2Zl ciB0aGVuIHRoZXJlIGlzIG5vIG5lZWQgdG8gcmVzZXJ2ZSByb29tIGZvciBib3RoLgoKSXQgaXMg dW5saWtlbHksIGJ1dCBzaG91bGQgdGhlcmUgYmUgYSBjaGVjayBpbiBjYXNlIEdVQ19HR1RUX1RP UCBleGNlZWRzIHZtLnRvdGFsIGFuZAphZGp1c3QgdGhlIHN0YXJ0IGFjY29yZGluZ2x5PyBPciBz aG91bGQgd2UgbGV0IHRoaXMgYmFpbD8gR0VNX0JVR19PTj8KClRoYW5rcywKRmVybmFuZG8KCj4g LUNocmlzCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJ bnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0 cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZng=