From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Roper Subject: Re: [PATCH 2/4] drm/i915/skl+: calculate ddb minimum allocation (v6) Date: Wed, 1 Jun 2016 07:40:25 -0700 Message-ID: <20160601144024.GE13698@intel.com> References: <574BCA2B.4050908@intel.com> <1464713939-10440-1-git-send-email-matthew.d.roper@intel.com> <574EF04E.5080609@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 6BA076E1EF for ; Wed, 1 Jun 2016 14:40:50 +0000 (UTC) Content-Disposition: inline In-Reply-To: <574EF04E.5080609@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Mahesh Kumar Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org T24gV2VkLCBKdW4gMDEsIDIwMTYgYXQgMDc6NTU6MThQTSArMDUzMCwgTWFoZXNoIEt1bWFyIHdy b3RlOgo+IFJldmlld2VkLWJ5OiBLdW1hciBNYWhlc2ggPG1haGVzaDEua3VtYXJAaW50ZWwuY29t PgoKTWVyZ2VkIHRvIGRpbnE7IHRoYW5rcyBmb3IgdGhlIHJldmlldyAoYW5kIHRoYW5rcyBmb3Ig ZG9pbmcgdGhlIGluaXRpYWwKd29yayB0aGlzIHNlcmllcyB3YXMgYmFzZWQgb24pLgoKCk1hdHQK Cj4gCj4gT24gVHVlc2RheSAzMSBNYXkgMjAxNiAxMDoyOCBQTSwgTWF0dCBSb3BlciB3cm90ZToK PiA+RnJvbTogIkt1bWFyLCBNYWhlc2giIDxtYWhlc2gxLmt1bWFyQGludGVsLmNvbT4KPiA+Cj4g PmRvbid0IGFsd2F5cyB1c2UgOCBkZGIgYXMgbWluaW11bSwgaW5zdGVhZCBjYWxjdWxhdGUgdXNp bmcgcHJvcGVyCj4gPmFsZ29yaXRobS4KPiA+Cj4gPnYyOiBvcHRpbWl6YXRpb25zIGFzIHBlciBN YXR0J3MgY29tbWVudHMuCj4gPgo+ID52MyAoYnkgTWF0dCk6Cj4gPiAgLSBGaXggYm9vbGVhbiBs b2dpYyBmb3IgIWZiIHRlc3QgaW4gc2tsX2RkYl9taW5fYWxsb2MoKQo+ID4gIC0gQWRqdXN0IG5l Z2F0aXZlIHRpbGluZyBmb3JtYXQgY29tcGFyaXNvbnMgaW4gc2tsX2RkYl9taW5fYWxsb2MoKSB0 bwo+ID4gICAgaW1wcm92ZSByZWFkYWJpbGl0eS4KPiA+Cj4gPnY0IChieSBNYXR0KToKPiA+ICAt IFJlYmFzZSBvbnRvIHJlY2VudCBhdG9taWMgd2F0ZXJtYXJrIGNoYW5nZXMKPiA+ICAtIFNsaWdo dCB0d2Vha3MgdG8gY29kZSBmbG93IHRvIG1ha2UgdGhlIGxvZ2ljIG1vcmUgY2xvc2VseSBtYXRj aCB0aGUKPiA+ICAgIGRlc2NyaXB0aW9uIGluIHRoZSBic3BlYy4KPiA+Cj4gPnY1IChieSBNYXR0 KToKPiA+ICAtIEhhbmRsZSBtaW5pbXVtIHNjYW5saW5lIGNhbGN1bGF0aW9uIHByb3Blcmx5IGZv ciA0ICYgOCBicHAgZm9ybWF0cy4KPiA+ICAgIDhicHAgaXNuJ3QgYWN0dWFsbHkgcG9zc2libGUg cmlnaHQgbm93LCBidXQgaXQncyBsaXN0ZWQgaW4gdGhlIGJzcGVjCj4gPiAgICBzbyBJJ3ZlIGlu Y2x1ZGVkIGl0IGhlcmUgZm9yIGZvcndhcmQgY29tcGF0aWJpbGl0eSAoc2ltaWxhciB0byBob3cK PiA+ICAgIHdlIGhhdmUgbG9naWMgZm9yIE5WMTIpLgo+ID4KPiA+djYgKGJ5IE1hdHQpOgo+ID4g IC0gQ2FsY3VsYXRlIHBsYW5lX2JwcCBjb3JyZWN0bHkgZm9yIG5vbi1OVjEyIGZvcm1hdHMuIChN YWhlc2gpCj4gPgo+ID5DYzogbWF0dGhldy5kLnJvcGVyQGludGVsLmNvbQo+ID5TaWduZWQtb2Zm LWJ5OiBLdW1hciwgTWFoZXNoIDxtYWhlc2gxLmt1bWFyQGludGVsLmNvbT4KPiA+U2lnbmVkLW9m Zi1ieTogTWF0dCBSb3BlciA8bWF0dGhldy5kLnJvcGVyQGludGVsLmNvbT4KPiA+LS0tCj4gPiAg ZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcG0uYyB8IDcwICsrKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrKysrKysrLS0tCj4gPiAgMSBmaWxlIGNoYW5nZWQsIDY1IGluc2VydGlvbnMo KyksIDUgZGVsZXRpb25zKC0pCj4gPgo+ID5kaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5 MTUvaW50ZWxfcG0uYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3BtLmMKPiA+aW5kZXgg M2NmMzZkYy4uNGUwYTk1MiAxMDA2NDQKPiA+LS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50 ZWxfcG0uYwo+ID4rKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wbS5jCj4gPkBAIC0z MDQyLDYgKzMwNDIsNjkgQEAgc2tsX2dldF90b3RhbF9yZWxhdGl2ZV9kYXRhX3JhdGUoc3RydWN0 IGludGVsX2NydGNfc3RhdGUgKmludGVsX2NzdGF0ZSkKPiA+ICAJcmV0dXJuIHRvdGFsX2RhdGFf cmF0ZTsKPiA+ICB9Cj4gPitzdGF0aWMgdWludDE2X3QKPiA+K3NrbF9kZGJfbWluX2FsbG9jKGNv bnN0IHN0cnVjdCBkcm1fcGxhbmVfc3RhdGUgKnBzdGF0ZSwKPiA+KwkJICBjb25zdCBpbnQgeSkK PiA+K3sKPiA+KwlzdHJ1Y3QgZHJtX2ZyYW1lYnVmZmVyICpmYiA9IHBzdGF0ZS0+ZmI7Cj4gPisJ c3RydWN0IGludGVsX3BsYW5lX3N0YXRlICppbnRlbF9wc3RhdGUgPSB0b19pbnRlbF9wbGFuZV9z dGF0ZShwc3RhdGUpOwo+ID4rCXVpbnQzMl90IHNyY193LCBzcmNfaDsKPiA+Kwl1aW50MzJfdCBt aW5fc2NhbmxpbmVzID0gODsKPiA+Kwl1aW50OF90IHBsYW5lX2JwcDsKPiA+Kwo+ID4rCWlmIChX QVJOX09OKCFmYikpCj4gPisJCXJldHVybiAwOwo+ID4rCj4gPisJLyogRm9yIHBhY2tlZCBmb3Jt YXRzLCBubyB5LXBsYW5lLCByZXR1cm4gMCAqLwo+ID4rCWlmICh5ICYmIGZiLT5waXhlbF9mb3Jt YXQgIT0gRFJNX0ZPUk1BVF9OVjEyKQo+ID4rCQlyZXR1cm4gMDsKPiA+Kwo+ID4rCS8qIEZvciBO b24gWS10aWxlIHJldHVybiA4LWJsb2NrcyAqLwo+ID4rCWlmIChmYi0+bW9kaWZpZXJbMF0gIT0g STkxNV9GT1JNQVRfTU9EX1lfVElMRUQgJiYKPiA+KwkgICAgZmItPm1vZGlmaWVyWzBdICE9IEk5 MTVfRk9STUFUX01PRF9ZZl9USUxFRCkKPiA+KwkJcmV0dXJuIDg7Cj4gPisKPiA+KwlzcmNfdyA9 IGRybV9yZWN0X3dpZHRoKCZpbnRlbF9wc3RhdGUtPnNyYykgPj4gMTY7Cj4gPisJc3JjX2ggPSBk cm1fcmVjdF9oZWlnaHQoJmludGVsX3BzdGF0ZS0+c3JjKSA+PiAxNjsKPiA+Kwo+ID4rCWlmIChp bnRlbF9yb3RhdGlvbl85MF9vcl8yNzAocHN0YXRlLT5yb3RhdGlvbikpCj4gPisJCXN3YXAoc3Jj X3csIHNyY19oKTsKPiA+Kwo+ID4rCS8qIEhhbHZlIFVWIHBsYW5lIHdpZHRoIGFuZCBoZWlnaHQg Zm9yIE5WMTIgKi8KPiA+KwlpZiAoZmItPnBpeGVsX2Zvcm1hdCA9PSBEUk1fRk9STUFUX05WMTIg JiYgIXkpIHsKPiA+KwkJc3JjX3cgLz0gMjsKPiA+KwkJc3JjX2ggLz0gMjsKPiA+Kwl9Cj4gPisK PiA+KwlpZiAoZmItPnBpeGVsX2Zvcm1hdCA9PSBEUk1fRk9STUFUX05WMTIgJiYgIXkpCj4gPisJ CXBsYW5lX2JwcCA9IGRybV9mb3JtYXRfcGxhbmVfY3BwKGZiLT5waXhlbF9mb3JtYXQsIDEpOwo+ ID4rCWVsc2UKPiA+KwkJcGxhbmVfYnBwID0gZHJtX2Zvcm1hdF9wbGFuZV9jcHAoZmItPnBpeGVs X2Zvcm1hdCwgMCk7Cj4gPisKPiA+KwlpZiAoaW50ZWxfcm90YXRpb25fOTBfb3JfMjcwKHBzdGF0 ZS0+cm90YXRpb24pKSB7Cj4gPisJCXN3aXRjaCAocGxhbmVfYnBwKSB7Cj4gPisJCWNhc2UgMToK PiA+KwkJCW1pbl9zY2FubGluZXMgPSAzMjsKPiA+KwkJCWJyZWFrOwo+ID4rCQljYXNlIDI6Cj4g PisJCQltaW5fc2NhbmxpbmVzID0gMTY7Cj4gPisJCQlicmVhazsKPiA+KwkJY2FzZSA0Ogo+ID4r CQkJbWluX3NjYW5saW5lcyA9IDg7Cj4gPisJCQlicmVhazsKPiA+KwkJY2FzZSA4Ogo+ID4rCQkJ bWluX3NjYW5saW5lcyA9IDQ7Cj4gPisJCQlicmVhazsKPiA+KwkJZGVmYXVsdDoKPiA+KwkJCVdB Uk4oMSwgIlVuc3VwcG9ydGVkIHBpeGVsIGRlcHRoICV1IGZvciByb3RhdGlvbiIsCj4gPisJCQkg ICAgIHBsYW5lX2JwcCk7Cj4gPisJCQltaW5fc2NhbmxpbmVzID0gMzI7Cj4gPisJCX0KPiA+Kwl9 Cj4gPisKPiA+KwlyZXR1cm4gRElWX1JPVU5EX1VQKCg0ICogc3JjX3cgKiBwbGFuZV9icHApLCA1 MTIpICogbWluX3NjYW5saW5lcy80ICsgMzsKPiA+K30KPiA+Kwo+ID4gIHN0YXRpYyBpbnQKPiA+ ICBza2xfYWxsb2NhdGVfcGlwZV9kZGIoc3RydWN0IGludGVsX2NydGNfc3RhdGUgKmNzdGF0ZSwK PiA+ICAJCSAgICAgIHN0cnVjdCBza2xfZGRiX2FsbG9jYXRpb24gKmRkYiAvKiBvdXQgKi8pCj4g PkBAIC0zMTA0LDExICszMTY3LDggQEAgc2tsX2FsbG9jYXRlX3BpcGVfZGRiKHN0cnVjdCBpbnRl bF9jcnRjX3N0YXRlICpjc3RhdGUsCj4gPiAgCQkJY29udGludWU7Cj4gPiAgCQl9Cj4gPi0JCW1p bmltdW1baWRdID0gODsKPiA+LQkJaWYgKHBzdGF0ZS0+ZmItPnBpeGVsX2Zvcm1hdCA9PSBEUk1f Rk9STUFUX05WMTIpCj4gPi0JCQl5X21pbmltdW1baWRdID0gODsKPiA+LQkJZWxzZQo+ID4tCQkJ eV9taW5pbXVtW2lkXSA9IDA7Cj4gPisJCW1pbmltdW1baWRdID0gc2tsX2RkYl9taW5fYWxsb2Mo cHN0YXRlLCAwKTsKPiA+KwkJeV9taW5pbXVtW2lkXSA9IHNrbF9kZGJfbWluX2FsbG9jKHBzdGF0 ZSwgMSk7Cj4gPiAgCX0KPiA+ICAJZm9yIChpID0gMDsgaSA8IFBMQU5FX0NVUlNPUjsgaSsrKSB7 Cj4gCgotLSAKTWF0dCBSb3BlcgpHcmFwaGljcyBTb2Z0d2FyZSBFbmdpbmVlcgpJb1RHIFBsYXRm b3JtIEVuYWJsaW5nICYgRGV2ZWxvcG1lbnQKSW50ZWwgQ29ycG9yYXRpb24KKDkxNikgMzU2LTI3 OTUKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwt Z2Z4IG1haWxpbmcgbGlzdApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8v bGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==