From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Thulasimani, Sivakumar" Subject: Re: [PATCH] drm/i915: Use SWF06 to figure out max cdclk for BDW Date: Tue, 16 Feb 2016 07:13:05 +0530 Message-ID: <56C27EA9.9030502@intel.com> References: <1455289567-30451-1-git-send-email-ville.syrjala@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTP id CCCB96E729 for ; Tue, 16 Feb 2016 01:43:09 +0000 (UTC) In-Reply-To: <1455289567-30451-1-git-send-email-ville.syrjala@linux.intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: ville.syrjala@linux.intel.com, intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org CgpPbiAyLzEyLzIwMTYgODozNiBQTSwgdmlsbGUuc3lyamFsYUBsaW51eC5pbnRlbC5jb20gd3Jv dGU6Cj4gRnJvbTogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNv bT4KPgo+IEJzcGVjIHRlbGxzIHVzIHRoYXQgd2UgY2FuIGFsbG93IGNkY2xrIHVwIHRvIDU0ME1o eiBvbiBCRFcgVUxYLCBvcgo+IHVwIHRvIDY3NSBNSHogb24gVUxULCBidSBvbmx5IGlmIGV4dHJh IGNvb2xpbmcgaXMgcHJvdmlkZWQuIFRoZXJlCj4gZG9uJ3Qgc2VlbSB0byBiZSBhbnkgc3RyYXAg b3IgVkJUIGJpdHMgdG8gdGVsbHMgdXMgdGhpcyBob3dldmVyLgo+Cj4gQnV0IEkgZGlkIHNwb3Qg c29tZXRoaW5nIHBvdGVudGlhbGx5IHJlbGV2YW50IGluCj4gVkJJT1NfR09QX0RyaXZlcl9TV0Zf UmVnaXN0ZXJzLnBkZi4gQXBwYXJlbnRseSBWQklPUy9HT1AgY2FuIHBhc3MKPiB0aGUgbWF4IGNk Y2xrIGZyZXF1ZW55IGluIFNXRjA2IHRvIHRoZSBkcml2ZXIuIExldCdzIGFzc3VtZSB0aGUgZmly bXdhcmUKPiBrbm93cyB3aGF0IGl0cyBkb2luZyBhbmQgdHJ1c3QgdGhlIG1heCBjZGNsayBpbiBT V0YwNiBpZiBpdCdzIGhpZ2hlcgo+IHRoYW4gdGhlIGJhc2ljIGxpbWl0IHNwZWNpZmllZCBpbiBC c3BlYy4gVG8gYXZvaWQgcmVncmVzc2luZyBhbnl0aGluZwo+IGxldCdzIGlnbm9yZSBTV0YwNiBp ZiBpdCBpbmRpY2F0ZXMgYSBsb3dlciBsaW1pdCB0aGFuIEJzcGVjLgo+Cj4gQ2M6IENsaW50IFRh eWxvciA8Y2xpbnRvbi5hLnRheWxvckBpbnRlbC5jb20+Cj4gQ2M6ICJUaHVsYXNpbWFuaSwgU2l2 YWt1bWFyIiA8c2l2YWt1bWFyLnRodWxhc2ltYW5pQGludGVsLmNvbT4KPiBTaWduZWQtb2ZmLWJ5 OiBWaWxsZSBTeXJqw6Rsw6QgPHZpbGxlLnN5cmphbGFAbGludXguaW50ZWwuY29tPgo+IC0tLQo+ Cj4gSSdtIG5vdCBhdCBhbGwgc3VyZSBpZiB0aGlzIGlzIHRoZSByaWdodCB3YXkgdG8gZ28gYWJv dXQgaXQuIFNpdmFrdW1hciwKPiBzaW5jZSB5b3Ugc2VlbSB0byBoYXZlIHNvbWUgaWRlYXMgb24g dGhpcyBtYXliZSB5b3UgY2FuIGhhdmUgYSBsb29rLgo+IEknbSBub3QgYXdhcmUgb2YgYW55IGNv bXBsYWludHMgc28gZmFyIHRoYXQgcGVvcGxlIGNhbid0IGdldCB0aGUgY2RjbGsKPiBhcyBoaWdo IGlzIHRoZXkgc2hvdWxkIG9uIHNwZWNpZmljIG1hY2hpbmVzLCBzbyBub3Qgc3VyZSBpZiB0aGlz IGlzIHJlYWxseQo+IGV2ZW4gbmVlZGVkLgo+Cj4gVGhlIG90aGVyIG9wZW4gcXVlc3Rpb24gaXMg d2hhdCB3ZSBzaG91bGQgZG8gaWYgdGhlIFZCSU9TIGxpbWl0IGlzCj4gbG93ZXIgdGhhbiB3aGF0 IHdlJ2QgZXhwZWN0IGJhc2VkIG9uIEJTcGVjLiBTaG91bGQgd2Ugc3RpbGwgdHJ1c3QgaXQ/Cj4g U2FkbHkgd2UgY2FuJ3QgdmVyaWZ5IHRoZSBTV0YwNiBjZGNsayB2YWx1ZSBpbiBhbnkgd2F5IHNp bmNlIGl0Cj4gb25seSBoYXMgdHdvIGJpdHMgYW5kIHdlIGhhdmUgZm91ciBwb3NzaWJsZSBjZGNs ayB2YWx1ZXMuClRoZSB2YWx1ZSBzdG9yZWQgaW4gU1dGMDYgaXMgdGhlIENEIENsb2NrIFZCSU9T L0dPUCBzZWVzIGR1cmluZyBib290LiBzbwppdCBqdXN0IGJhY2tzIHVwIHRoZSBDRCBDbG9jayBi ZWZvcmUgaXQgb3B0aW1pemVzIGZvciB0aGUgYXZhaWxhYmxlIExGUC4gCmlmIHdlCmFyZSB0cnVz dGluZyBmb3IgaGlnaGVyIHZhbHVlIHdlIHNob3VsZCB0cnVzdCBpdCBmb3IgbG93ZXIgdmFsdWUg dG9vLgpUaGUgT0VNIG1pZ2h0IGhhdmUgZGlkIHRoaXMgdG8gZWl0aGVyIHJlZHVjZSBtYXggcmVz b2x1dGlvbiBmb3IgY2hlYXBlcgpwcm9kdWN0cyBvciBtaWdodCBoYXZlIHJlbW92ZWQgc29tZSBj b29saW5nIG1lY2hhbmlzbXMgZm9yIHRoaW5uZXIKZGVzaWducyBzaW5jZSB3ZSBjYW5ub3Qgc2F5 IHdoaWNoIG9mIHRoZSByZWFzb25zIHdlIHNob3VsZCB0cnVzdCB0aGUKbG93ZXIgdmFsdWUgdG9v LgoKbm93IGNvbWVzIHRvIHRvdWdoIHBhcnQgOigsIHRoaXMgU1dGMDYgaXMgc2F2ZWQgYnkgVkJJ T1MvR09QIGRyaXZlcgpmcm9tIGludGVsIGFsb25lKGl0IGlzIG5vdCBwcm9ncmFtbWVkIGZyb20g VkJUKSwKc2luY2UgR09QIGRyaXZlciBjYW4gYmUgaW1wbGVtZW50ZWQgYnkgYW55b25lIGFuZApp ZiBhbnlvbmUgaW1wbGVtZW50cyB0aGVpciBvd24gR09QIGRyaXZlciB3ZSBjYW5ub3QgYmUgc3Vy ZSBpZiB0aGUKdmFsdWUgaXMgdmFsaWQgb3Igbm90LiBwbGVhc2UgY2hlY2sgaWYgd2UgY2FuIGNo ZWNrIGZvciAiSW50ZWwgR09QIGRyaXZlciIuCkFuZCBpZiAiSW50ZWwgR09QIGRyaXZlciIgd2Fz IHVzZWQgZHVyaW5nIGJvb3QsIHdlIGNhbiB0cnVzdCB0aGUgdmFsdWUKMTAwJS4gIGkgYW0gbm90 IHN1cmUgaG93IHRoaXMgY2FuIGJlIGRvbmUsIHNvIGkgd291bGQgcmVjb21tZW5kCnRydXN0aW5n IHRoZSB2YWx1ZXMgd2l0aCBjbGVhciBkZWJ1ZyBtZXNzYWdlcyBhcyBkb25lIGJlbG93IGFscmVh ZHkuCgpBcyBtZW50aW9uZWQgaW4gYW5vdGhlciB0aHJlYWQsIHRoaXMgbmVlZHMgdG8gYmUgZG9u ZSBmb3IgU0tMIHRvby4KaSBkb250IGhhdmUgYSBTS0wgc3lzdGVtIHNvIGlmIG5vIG9uZSBlbHNl IGNhbiBtYWtlIGEgcGF0Y2ggZm9yIGl0Cmkgd2lsbCBoYXZlIHRvIHNoYXJlIGFuIHVudGVzdGVk IHBhdGNoIGZvciBpdCA6KS4KPgo+ICAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxh eS5jIHwgNjAgKysrKysrKysrKysrKysrKysrKysrKysrKysrKy0tLS0tLS0tCj4gICAxIGZpbGUg Y2hhbmdlZCwgNDcgaW5zZXJ0aW9ucygrKSwgMTMgZGVsZXRpb25zKC0pCj4KPiBkaWZmIC0tZ2l0 IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jIGIvZHJpdmVycy9ncHUvZHJt L2k5MTUvaW50ZWxfZGlzcGxheS5jCj4gaW5kZXggODM2YmJkYzIzOWI2Li4xZDcwZjZiZjI5MzQg MTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jCj4gKysr IGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfZGlzcGxheS5jCj4gQEAgLTU0MDcsMjEgKzU0 MDcsNTUgQEAgc3RhdGljIHZvaWQgaW50ZWxfdXBkYXRlX21heF9jZGNsayhzdHJ1Y3QgZHJtX2Rl dmljZSAqZGV2KQo+ICAgCQkJZGV2X3ByaXYtPm1heF9jZGNsa19mcmVxID0gNDUwMDAwOwo+ICAg CQllbHNlCj4gICAJCQlkZXZfcHJpdi0+bWF4X2NkY2xrX2ZyZXEgPSAzMzc1MDA7Cj4gLQl9IGVs c2UgaWYgKElTX0JST0FEV0VMTChkZXYpKSAgewo+ICsJfSBlbHNlIGlmIChJU19CUk9BRFdFTEwo ZGV2KSkgewo+ICsJCWludCBiaW9zX21heF9jZGNsa19mcmVxLCBtYXhfY2RjbGtfZnJlcTsKPiAr Cj4gICAJCS8qCj4gLQkJICogRklYTUUgd2l0aCBleHRyYSBjb29saW5nIHdlIGNhbiBhbGxvdwo+ IC0JCSAqIDU0MCBNSHogZm9yIFVMWCBhbmQgNjc1IE1oeiBmb3IgVUxULgo+IC0JCSAqIEhvdyBj YW4gd2Uga25vdyBpZiBleHRyYSBjb29saW5nIGlzCj4gLQkJICogYXZhaWxhYmxlPyBQQ0kgSUQs IFZUQiwgc29tZXRoaW5nIGVsc2U/Cj4gKwkJICogV2l0aCBleHRyYSBjb29saW5nIHdlIGNhbiBh bGxvdyA1NDAgTUh6IGZvcgo+ICsJCSAqIFVMWCBhbmQgNjc1IE1oeiBmb3IgVUxULiBBc3N1bWUg VkJJT1MvR09QCj4gKwkJICogcGFzc2VzIHRoYXQgaW5mb3JtYXRpb24gaW4gU1dGMDYuCj4gICAJ CSAqLwo+IC0JCWlmIChJOTE1X1JFQUQoRlVTRV9TVFJBUCkgJiBIU1dfQ0RDTEtfTElNSVQpCj4g LQkJCWRldl9wcml2LT5tYXhfY2RjbGtfZnJlcSA9IDQ1MDAwMDsKPiAtCQllbHNlIGlmIChJU19C RFdfVUxYKGRldikpCj4gLQkJCWRldl9wcml2LT5tYXhfY2RjbGtfZnJlcSA9IDQ1MDAwMDsKPiAt CQllbHNlIGlmIChJU19CRFdfVUxUKGRldikpCj4gLQkJCWRldl9wcml2LT5tYXhfY2RjbGtfZnJl cSA9IDU0MDAwMDsKPiAtCQllbHNlCj4gLQkJCWRldl9wcml2LT5tYXhfY2RjbGtfZnJlcSA9IDY3 NTAwMDsKPiArCQlzd2l0Y2ggKEk5MTVfUkVBRChTV0ZfSUxLKDB4MDYpKSAmIDB4Mykgewo+ICsJ CWNhc2UgMDoKPiArCQkJYmlvc19tYXhfY2RjbGtfZnJlcSA9IDQ1MDAwMDsKPiArCQkJYnJlYWs7 Cj4gKwkJY2FzZSAxOgo+ICsJCQliaW9zX21heF9jZGNsa19mcmVxID0gNTQwMDAwOwo+ICsJCQli cmVhazsKPiArCQljYXNlIDI6Cj4gKwkJCWJpb3NfbWF4X2NkY2xrX2ZyZXEgPSAzMzc1MDA7Cj4g KwkJCWJyZWFrOwo+ICsJCWNhc2UgMzoKPiArCQkJYmlvc19tYXhfY2RjbGtfZnJlcSA9IDY3NTAw MDsKPiArCQkJYnJlYWs7Cj4gKwkJfQo+ICsKPiArCQlpZiAoSTkxNV9SRUFEKEZVU0VfU1RSQVAp ICYgSFNXX0NEQ0xLX0xJTUlUKSB7Cj4gKwkJCWlmIChXQVJOX09OKGJpb3NfbWF4X2NkY2xrX2Zy ZXEgIT0gNDUwMDAwKSkKPiArCQkJCWJpb3NfbWF4X2NkY2xrX2ZyZXEgPSA0NTAwMDA7Cj4gKwkJ CW1heF9jZGNsa19mcmVxID0gNDUwMDAwOwo+ICsJCX0gZWxzZSBpZiAoSVNfQkRXX1VMWChkZXZf cHJpdikpIHsKPiArCQkJaWYgKFdBUk5fT04oYmlvc19tYXhfY2RjbGtfZnJlcSA+IDU0MDAwMCkp Cj4gKwkJCQliaW9zX21heF9jZGNsa19mcmVxID0gNTQwMDAwOwo+ICsJCQltYXhfY2RjbGtfZnJl cSA9IDQ1MDAwMDsKPiArCQl9IGVsc2UgaWYgKElTX0JEV19VTFQoZGV2X3ByaXYpKSB7Cj4gKwkJ CW1heF9jZGNsa19mcmVxID0gNTQwMDAwOwo+ICsJCX0gZWxzZSB7Cj4gKwkJCW1heF9jZGNsa19m cmVxID0gNjc1MDAwOwo+ICsJCX0KPiArCj4gKwkJaWYgKGJpb3NfbWF4X2NkY2xrX2ZyZXEgPiBt YXhfY2RjbGtfZnJlcSkgewo+ICsJCQlEUk1fREVCVUdfS01TKCJWQklPUy9HT1AgbWF4IGNkY2xr ICglZCBrSHopIGhpZ2hlciB0aGFuIGJhc2ljIGxpbWl0ICglZCBrSHopLCAiCj4gKwkJCQkgICAg ICAiYXNzdW1pbmcgZXh0cmEgY29vbGluZyBpcyBwcmVzZW50XG4iLAo+ICsJCQkJICAgICAgYmlv c19tYXhfY2RjbGtfZnJlcSwgbWF4X2NkY2xrX2ZyZXEpOwo+ICsJCQltYXhfY2RjbGtfZnJlcSA9 IGJpb3NfbWF4X2NkY2xrX2ZyZXE7Cj4gKwkJfSBlbHNlIGlmIChiaW9zX21heF9jZGNsa19mcmVx IDwgbWF4X2NkY2xrX2ZyZXEpIHsKPiArCQkJRFJNX0RFQlVHX0tNUygiVkJJT1MvR09QIG1heCBj ZGNsayAoJWQga0h6KSBsb3dlciB0aGFuIGJhc2ljIGxpbWl0ICglZCBrSHopLCAiCj4gKwkJCQkg ICAgICAiaWdub3JpbmcgaXRcbiIsCj4gKwkJCQkgICAgICBiaW9zX21heF9jZGNsa19mcmVxLCBt YXhfY2RjbGtfZnJlcSk7Cj4gKwkJfQpmb3IgdGhlIHJlYXNvbnMgbWVudGlvbmVkIGFib3ZlLCBp IHdvdWxkIGZhdm9yIHRydXN0aW5nIGxvd2VyIHZhbHVlcyB0b28uCgpyZWdhcmRzLApTaXZha3Vt YXIKPiArCj4gKwkJZGV2X3ByaXYtPm1heF9jZGNsa19mcmVxID0gbWF4X2NkY2xrX2ZyZXE7Cj4g ICAJfSBlbHNlIGlmIChJU19DSEVSUllWSUVXKGRldikpIHsKPiAgIAkJZGV2X3ByaXYtPm1heF9j ZGNsa19mcmVxID0gMzIwMDAwOwo+ICAgCX0gZWxzZSBpZiAoSVNfVkFMTEVZVklFVyhkZXYpKSB7 CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJbnRlbC1n ZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9s aXN0cy5mcmVlZGVza3RvcC5vcmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK