From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mahesh Kumar Subject: Re: [PATCH 2/4] drm/i915/skl+: calculate ddb minimum allocation (v5) Date: Mon, 30 May 2016 10:35:47 +0530 Message-ID: <574BCA2B.4050908@intel.com> References: <1463439121-28974-3-git-send-email-matthew.d.roper@intel.com> <1464300828-13605-1-git-send-email-matthew.d.roper@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 7169B6E5CF for ; Mon, 30 May 2016 05:02:30 +0000 (UTC) In-Reply-To: <1464300828-13605-1-git-send-email-matthew.d.roper@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Matt Roper , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org CgpPbiBGcmlkYXkgMjcgTWF5IDIwMTYgMDM6NDMgQU0sIE1hdHQgUm9wZXIgd3JvdGU6Cj4gRnJv bTogIkt1bWFyLCBNYWhlc2giIDxtYWhlc2gxLmt1bWFyQGludGVsLmNvbT4KPgo+IGRvbid0IGFs d2F5cyB1c2UgOCBkZGIgYXMgbWluaW11bSwgaW5zdGVhZCBjYWxjdWxhdGUgdXNpbmcgcHJvcGVy Cj4gYWxnb3JpdGhtLgo+Cj4gdjI6IG9wdGltaXphdGlvbnMgYXMgcGVyIE1hdHQncyBjb21tZW50 cy4KPgo+IHYzIChieSBNYXR0KToKPiAgIC0gRml4IGJvb2xlYW4gbG9naWMgZm9yICFmYiB0ZXN0 IGluIHNrbF9kZGJfbWluX2FsbG9jKCkKPiAgIC0gQWRqdXN0IG5lZ2F0aXZlIHRpbGluZyBmb3Jt YXQgY29tcGFyaXNvbnMgaW4gc2tsX2RkYl9taW5fYWxsb2MoKSB0bwo+ICAgICBpbXByb3ZlIHJl YWRhYmlsaXR5Lgo+Cj4gdjQgKGJ5IE1hdHQpOgo+ICAgLSBSZWJhc2Ugb250byByZWNlbnQgYXRv bWljIHdhdGVybWFyayBjaGFuZ2VzCj4gICAtIFNsaWdodCB0d2Vha3MgdG8gY29kZSBmbG93IHRv IG1ha2UgdGhlIGxvZ2ljIG1vcmUgY2xvc2VseSBtYXRjaCB0aGUKPiAgICAgZGVzY3JpcHRpb24g aW4gdGhlIGJzcGVjLgo+Cj4gdjUgKGJ5IE1hdHQpOgo+ICAgLSBIYW5kbGUgbWluaW11bSBzY2Fu bGluZSBjYWxjdWxhdGlvbiBwcm9wZXJseSBmb3IgNCAmIDggYnBwIGZvcm1hdHMuCj4gICAgIDhi cHAgaXNuJ3QgYWN0dWFsbHkgcG9zc2libGUgcmlnaHQgbm93LCBidXQgaXQncyBsaXN0ZWQgaW4g dGhlIGJzcGVjCj4gICAgIHNvIEkndmUgaW5jbHVkZWQgaXQgaGVyZSBmb3IgZm9yd2FyZCBjb21w YXRpYmlsaXR5IChzaW1pbGFyIHRvIGhvdwo+ICAgICB3ZSBoYXZlIGxvZ2ljIGZvciBOVjEyKS4K Pgo+IENjOiBtYXR0aGV3LmQucm9wZXJAaW50ZWwuY29tCj4gU2lnbmVkLW9mZi1ieTogS3VtYXIs IE1haGVzaCA8bWFoZXNoMS5rdW1hckBpbnRlbC5jb20+Cj4gU2lnbmVkLW9mZi1ieTogTWF0dCBS b3BlciA8bWF0dGhldy5kLnJvcGVyQGludGVsLmNvbT4KPiAtLS0KPiAgIGRyaXZlcnMvZ3B1L2Ry bS9pOTE1L2ludGVsX3BtLmMgfCA2OCArKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysrKy0tLQo+ICAgMSBmaWxlIGNoYW5nZWQsIDYzIGluc2VydGlvbnMoKyksIDUgZGVsZXRpb25z KC0pCj4KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcG0uYyBiL2Ry aXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3BtLmMKPiBpbmRleCAzY2YzNmRjLi4wMGI1MGJmIDEw MDY0NAo+IC0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3BtLmMKPiArKysgYi9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wbS5jCj4gQEAgLTMwNDIsNiArMzA0Miw2NyBAQCBza2xf Z2V0X3RvdGFsX3JlbGF0aXZlX2RhdGFfcmF0ZShzdHJ1Y3QgaW50ZWxfY3J0Y19zdGF0ZSAqaW50 ZWxfY3N0YXRlKQo+ICAgCXJldHVybiB0b3RhbF9kYXRhX3JhdGU7Cj4gICB9Cj4gICAKPiArc3Rh dGljIHVpbnQxNl90Cj4gK3NrbF9kZGJfbWluX2FsbG9jKGNvbnN0IHN0cnVjdCBkcm1fcGxhbmVf c3RhdGUgKnBzdGF0ZSwKPiArCQkgIGNvbnN0IGludCB5KQo+ICt7Cj4gKwlzdHJ1Y3QgZHJtX2Zy YW1lYnVmZmVyICpmYiA9IHBzdGF0ZS0+ZmI7Cj4gKwlzdHJ1Y3QgaW50ZWxfcGxhbmVfc3RhdGUg KmludGVsX3BzdGF0ZSA9IHRvX2ludGVsX3BsYW5lX3N0YXRlKHBzdGF0ZSk7Cj4gKwl1aW50MzJf dCBzcmNfdywgc3JjX2g7Cj4gKwl1aW50MzJfdCBtaW5fc2NhbmxpbmVzID0gODsKPiArCXVpbnQ4 X3QgcGxhbmVfYnBwOwo+ICsKPiArCWlmIChXQVJOX09OKCFmYikpCj4gKwkJcmV0dXJuIDA7Cj4g Kwo+ICsJLyogRm9yIHBhY2tlZCBmb3JtYXRzLCBubyB5LXBsYW5lLCByZXR1cm4gMCAqLwo+ICsJ aWYgKHkgJiYgZmItPnBpeGVsX2Zvcm1hdCAhPSBEUk1fRk9STUFUX05WMTIpCj4gKwkJcmV0dXJu IDA7Cj4gKwo+ICsJLyogRm9yIE5vbiBZLXRpbGUgcmV0dXJuIDgtYmxvY2tzICovCj4gKwlpZiAo ZmItPm1vZGlmaWVyWzBdICE9IEk5MTVfRk9STUFUX01PRF9ZX1RJTEVEICYmCj4gKwkgICAgZmIt Pm1vZGlmaWVyWzBdICE9IEk5MTVfRk9STUFUX01PRF9ZZl9USUxFRCkKPiArCQlyZXR1cm4gODsK PiArCj4gKwlzcmNfdyA9IGRybV9yZWN0X3dpZHRoKCZpbnRlbF9wc3RhdGUtPnNyYykgPj4gMTY7 Cj4gKwlzcmNfaCA9IGRybV9yZWN0X2hlaWdodCgmaW50ZWxfcHN0YXRlLT5zcmMpID4+IDE2Owo+ ICsKPiArCWlmIChpbnRlbF9yb3RhdGlvbl85MF9vcl8yNzAocHN0YXRlLT5yb3RhdGlvbikpCj4g KwkJc3dhcChzcmNfdywgc3JjX2gpOwo+ICsKPiArCS8qIEhhbHZlIFVWIHBsYW5lIHdpZHRoIGFu ZCBoZWlnaHQgZm9yIE5WMTIgKi8KPiArCWlmIChmYi0+cGl4ZWxfZm9ybWF0ID09IERSTV9GT1JN QVRfTlYxMiAmJiAheSkgewo+ICsJCXNyY193IC89IDI7Cj4gKwkJc3JjX2ggLz0gMjsKPiArCX0K PiArCj4gKwlwbGFuZV9icHAgPSB5ID8gZHJtX2Zvcm1hdF9wbGFuZV9jcHAoZmItPnBpeGVsX2Zv cm1hdCwgMCkgOgo+ICsJCWRybV9mb3JtYXRfcGxhbmVfY3BwKGZiLT5waXhlbF9mb3JtYXQsIDEp OwpIZXJlIGluIGNhc2Ugb2YgeT0wIHdlIHNob3VsZCBjYWxsIGRybV9mb3JtYXRfcGxhbmVfY3Bw IHdpdGggYXJndW1lbnQgMCwgCihwaXhlbCBmb3JtYXRzIHdoaWNoIGhhdmUgbnVtYmVyIG9mIHBs YW5lIDEpCmVsc2UgYWJvdmUgZnVuY3Rpb24gd2lsbCByZXR1cm4gemVybyBhcyBwbGFuZSBCUFAu CgpyZWdhcmRzLAotTWFoZXNoCj4gKwo+ICsJaWYgKGludGVsX3JvdGF0aW9uXzkwX29yXzI3MChw c3RhdGUtPnJvdGF0aW9uKSkgewo+ICsJCXN3aXRjaCAocGxhbmVfYnBwKSB7Cj4gKwkJY2FzZSAx Ogo+ICsJCQltaW5fc2NhbmxpbmVzID0gMzI7Cj4gKwkJCWJyZWFrOwo+ICsJCWNhc2UgMjoKPiAr CQkJbWluX3NjYW5saW5lcyA9IDE2Owo+ICsJCQlicmVhazsKPiArCQljYXNlIDQ6Cj4gKwkJCW1p bl9zY2FubGluZXMgPSA4Owo+ICsJCQlicmVhazsKPiArCQljYXNlIDg6Cj4gKwkJCW1pbl9zY2Fu bGluZXMgPSA0Owo+ICsJCQlicmVhazsKPiArCQlkZWZhdWx0Ogo+ICsJCQlXQVJOKDEsICJVbnN1 cHBvcnRlZCBwaXhlbCBkZXB0aCAldSBmb3Igcm90YXRpb24iLAo+ICsJCQkgICAgIHBsYW5lX2Jw cCk7Cj4gKwkJCW1pbl9zY2FubGluZXMgPSAzMjsKPiArCQl9Cj4gKwl9Cj4gKwo+ICsJcmV0dXJu IERJVl9ST1VORF9VUCgoNCAqIHNyY193ICogcGxhbmVfYnBwKSwgNTEyKSAqIG1pbl9zY2FubGlu ZXMvNCArIDM7Cj4gK30KPiArCj4gICBzdGF0aWMgaW50Cj4gICBza2xfYWxsb2NhdGVfcGlwZV9k ZGIoc3RydWN0IGludGVsX2NydGNfc3RhdGUgKmNzdGF0ZSwKPiAgIAkJICAgICAgc3RydWN0IHNr bF9kZGJfYWxsb2NhdGlvbiAqZGRiIC8qIG91dCAqLykKPiBAQCAtMzEwNCwxMSArMzE2NSw4IEBA IHNrbF9hbGxvY2F0ZV9waXBlX2RkYihzdHJ1Y3QgaW50ZWxfY3J0Y19zdGF0ZSAqY3N0YXRlLAo+ ICAgCQkJY29udGludWU7Cj4gICAJCX0KPiAgIAo+IC0JCW1pbmltdW1baWRdID0gODsKPiAtCQlp ZiAocHN0YXRlLT5mYi0+cGl4ZWxfZm9ybWF0ID09IERSTV9GT1JNQVRfTlYxMikKPiAtCQkJeV9t aW5pbXVtW2lkXSA9IDg7Cj4gLQkJZWxzZQo+IC0JCQl5X21pbmltdW1baWRdID0gMDsKPiArCQlt aW5pbXVtW2lkXSA9IHNrbF9kZGJfbWluX2FsbG9jKHBzdGF0ZSwgMCk7Cj4gKwkJeV9taW5pbXVt W2lkXSA9IHNrbF9kZGJfbWluX2FsbG9jKHBzdGF0ZSwgMSk7Cj4gICAJfQo+ICAgCj4gICAJZm9y IChpID0gMDsgaSA8IFBMQU5FX0NVUlNPUjsgaSsrKSB7CgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdm eEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3RvcC5vcmcvbWFp bG1hbi9saXN0aW5mby9pbnRlbC1nZngK