From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [PATCH v3 1/1] drm/i915/bxt: Check BIOS RC6 setup before enabling RC6 Date: Tue, 17 Nov 2015 17:45:06 +0100 Message-ID: <20151117164506.GN16848@phenom.ffwll.local> References: <20151030160901.GL16848@phenom.ffwll.local> <1446631494-18389-1-git-send-email-sagar.a.kamble@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wm0-f48.google.com (mail-wm0-f48.google.com [74.125.82.48]) by gabe.freedesktop.org (Postfix) with ESMTPS id A5E8D6E38F for ; Tue, 17 Nov 2015 08:45:10 -0800 (PST) Received: by wmww144 with SMTP id w144so34394122wmw.0 for ; Tue, 17 Nov 2015 08:45:09 -0800 (PST) Content-Disposition: inline In-Reply-To: <1446631494-18389-1-git-send-email-sagar.a.kamble@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Sagar Arun Kamble Cc: intel-gfx@lists.freedesktop.org, shashidhar.hiremath@intel.com List-Id: intel-gfx@lists.freedesktop.org T24gV2VkLCBOb3YgMDQsIDIwMTUgYXQgMDM6MzQ6NTRQTSArMDUzMCwgU2FnYXIgQXJ1biBLYW1i bGUgd3JvdGU6Cj4gUkM2IHNldHVwIGlzIHNoYXJlZCBiZXR3ZWVuIEJJT1MgYW5kIERyaXZlci4g QklPUyBzZXRzIHVwIHN1YnNldCBvZiBSQzYKPiBzZXR1cCByZWdpc3RlcnMuIElmIHRob3NlIGFy ZSBub3Qgc2V0dXAgRHJpdmVyIHNob3VsZCBub3QgZW5hYmxlIFJDNi4KPiBGb3IgaW1wbGVtZW50 aW5nIHRoaXMsIGRyaXZlciBjYW4gY2hlY2sgUkNfQ1RSTDAgYW5kIFJDX0NUUkwxIHZhbHVlcwo+ IHRvIGtub3cgaWYgQklPUyBoYXMgZW5hYmxlZCBIVy9TVyBSQzYuCj4gVGhpcyB3aWxsIGFsc28g ZW5hYmxlIHVzZXIgdG8gY29udHJvbCBSQzYgdXNpbmcgQklPUyBzZXR0aW5ncyBhbG9uZS4KPiBS QzYgcmVsYXRlZCBpbnN0YWJpbGl0eSBjYW4gYmUgYXZvaWRlZCBieSBkaXNhYmxpbmcgdmlhIEJJ T1Mgc2V0dGluZ3MKPiB0aWxsIGRyaXZlciBmaXhlcyBpdC4KPiAKPiBSQzYgc2V0dXAgaXMgc2hh cmVkIGJldHdlZW4gQklPUyBhbmQgRHJpdmVyLiBCSU9TIHNldHMgdXAgc3Vic2V0IG9mIFJDNiBj b25maWd1cmF0aW9uIHJlZ2lzdGVycy4gSWYgdGhvc2UgYXJlIG5vdCBzZXR1cCBEcml2ZXIgc2hv dWxkIG5vdCBlbmFibGUgUkM2Lgo+IEZvciBpbXBsZW1lbnRpbmcgdGhpcywgZHJpdmVyIGNhbiBj aGVjayBSQ19DVFJMMCBhbmQgUkNfQ1RSTDEgdmFsdWVzIHRvIGtub3cgaWYgQklPUyBoYXMgZW5h YmxlZCBIVy9TVyBSQzYuCj4gVGhpcyB3aWxsIGFsc28gZW5hYmxlIHVzZXIgdG8gY29udHJvbCBS QzYgdXNpbmcgQklPUyBzZXR0aW5ncyBhbG9uZS4KPiAKPiB2MjogSGFkIHBsYWNlZCBsb2dpYyBp biBnZW44IGZ1bmN0aW9uIGJ5IG1pc3Rha2UuIEZpeGVkIGl0LiBFbnN1cmluZyBSUE0gaXMgbm90 IGVuYWJsZWQgaW4gY2FzZSBCSU9TIGRpc2FibGVkIFJDNi4KPiAKPiB2MzogTmVlZCB0byBkaXNh YmxlIFJQTSBpZiBSQzYgaXMgZGlzYWJsZWQgZHVlIHRvIEJJT1Mgc2V0dGluZ3MuIChEYW5pZWwp Cj4gUnVudGltZSBQTSBlbmFibGluZyBoYXBwZW5zIGJlZm9yZSBnZW45X2VuYWJsZV9yYzYuCj4g TW92ZWQgdGhlIHVwZGF0aW9uIG9mIGVuYWJsZV9yYzYgcGFyYW1ldGVyIGluIGludGVsX3VuY29y ZV9zYW5pdGl6ZS4KPiAKPiBDaGFuZ2UtSWQ6IElmODk1MTg3MDhlMTMzYmU2YjNjN2M2ZjkwODY5 ZmI2NjIyNGI3Yjg3Cj4gU2lnbmVkLW9mZi1ieTogU2FnYXIgQXJ1biBLYW1ibGUgPHNhZ2FyLmEu a2FtYmxlQGludGVsLmNvbT4KPiAtLS0KPiAgZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9yZWcu aCAgICAgfCAgMSArCj4gIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3VuY29yZS5jIHwgMjcg KysrKysrKysrKysrKysrKysrKysrKysrKysrCj4gIDIgZmlsZXMgY2hhbmdlZCwgMjggaW5zZXJ0 aW9ucygrKQo+IAo+IGRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X3JlZy5o IGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9yZWcuaAo+IGluZGV4IDg5NDI1MzIuLjZlZDM1 NDIgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9yZWcuaAo+ICsrKyBi L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfcmVnLmgKPiBAQCAtNjgyMyw2ICs2ODIzLDcgQEAg ZW51bSBza2xfZGlzcF9wb3dlcl93ZWxscyB7Cj4gICNkZWZpbmUgR0VONl9SUERFVUMJCQkJMHhB MDg0Cj4gICNkZWZpbmUgR0VONl9SUERFVUNTVwkJCQkweEEwODgKPiAgI2RlZmluZSBHRU42X1JD X1NUQVRFCQkJCTB4QTA5NAo+ICsjZGVmaW5lIFJDNl9TVEFURQkJCQkoMTw8MTgpCj4gICNkZWZp bmUgR0VONl9SQzFfV0FLRV9SQVRFX0xJTUlUCQkweEEwOTgKPiAgI2RlZmluZSBHRU42X1JDNl9X QUtFX1JBVEVfTElNSVQJCTB4QTA5Qwo+ICAjZGVmaW5lIEdFTjZfUkM2cHBfV0FLRV9SQVRFX0xJ TUlUCQkweEEwQTAKPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfdW5j b3JlLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF91bmNvcmUuYwo+IGluZGV4IGYwZjk3 YjIuLmJlZGIwODkgMTAwNjQ0Cj4gLS0tIGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfdW5j b3JlLmMKPiArKysgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF91bmNvcmUuYwo+IEBAIC0z NjQsOCArMzY0LDM1IEBAIHZvaWQgaW50ZWxfdW5jb3JlX2Vhcmx5X3Nhbml0aXplKHN0cnVjdCBk cm1fZGV2aWNlICpkZXYsIGJvb2wgcmVzdG9yZV9mb3JjZXdha2UpCj4gIAlpOTE1X2NoZWNrX2Fu ZF9jbGVhcl9mYXVsdHMoZGV2KTsKPiAgfQo+ICAKPiArc3RhdGljIHZvaWQgc2FuaXRpemVfYmlv c19yYzZfc2V0dXAoY29uc3Qgc3RydWN0IGRybV9kZXZpY2UgKmRldikKPiArewo+ICsJc3RydWN0 IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2ID0gZGV2LT5kZXZfcHJpdmF0ZTsKPiArCWJvb2wg aHdfcmM2X2VuYWJsZWQgPSBmYWxzZSwgc3dfcmM2X2VuYWJsZWQgPSBmYWxzZTsKPiArCj4gKwlp ZiAoSVNfQlJPWFRPTihkZXYpKSB7Cj4gKwkJLyogR2V0IGZvcmNld2FrZSBkdXJpbmcgcHJvZ3Jh bSBzZXF1ZW5jZS4gQWx0aG91Z2ggdGhlIGRyaXZlcgo+ICsJCSAqIGhhc24ndCBlbmFibGVkIGEg c3RhdGUgeWV0IHdoZXJlIHdlIG5lZWQgZm9yY2V3YWtlLCBCSU9TIG1heSBoYXZlLiovCj4gKwkJ aW50ZWxfdW5jb3JlX2ZvcmNld2FrZV9nZXQoZGV2X3ByaXYsIEZPUkNFV0FLRV9BTEwpOwo+ICsK PiArCQkvKiBDaGVjayBpZiBCSU9TIGhhcyBlbmFibGVkIEhXL1NXIFJDNi4gT25seSB0aGVuIGVu YWJsZSBSQzYgKi8KPiArCQlod19yYzZfZW5hYmxlZCA9IEk5MTVfUkVBRChHRU42X1JDX0NPTlRS T0wpICYKPiArCQkJCQkoR0VONl9SQ19DVExfUkM2X0VOQUJMRSB8IEdFTjZfUkNfQ1RMX0hXX0VO QUJMRSk7Cj4gKwkJc3dfcmM2X2VuYWJsZWQgPSAhKEk5MTVfUkVBRChHRU42X1JDX0NPTlRST0wp ICYgR0VONl9SQ19DVExfSFdfRU5BQkxFKQo+ICsJCQkJCSYmIChJOTE1X1JFQUQoR0VONl9SQ19T VEFURSkgJiBSQzZfU1RBVEUpOwo+ICsKPiArCQlpbnRlbF91bmNvcmVfZm9yY2V3YWtlX3B1dChk ZXZfcHJpdiwgRk9SQ0VXQUtFX0FMTCk7Cj4gKwo+ICsJCWlmICghaHdfcmM2X2VuYWJsZWQgJiYg IXN3X3JjNl9lbmFibGVkKSB7Cj4gKwkJCWk5MTUuZW5hYmxlX3JjNiA9IDA7Cj4gKwkJCURSTV9J TkZPKCJSQzYgZGlzYWJsZWQgYnkgQklPU1xuIik7Cj4gKwkJfQo+ICsJfQo+ICt9Cj4gKwo+ICB2 b2lkIGludGVsX3VuY29yZV9zYW5pdGl6ZShzdHJ1Y3QgZHJtX2RldmljZSAqZGV2KQo+ICB7Cj4g KwlzYW5pdGl6ZV9iaW9zX3JjNl9zZXR1cChkZXYpOwoKV2h5IGRpZCB5b3UgbW92ZSB0aGlzIG91 dCBvZiB0aGUgZW5hYmxlX3JjNiBmdW5jdGlvbnM/IEl0IHNlZW1zIHRvIGZpdAptdWNoIGJldHRl ciB0aGVyZSwgaW5zdGVhZCBvZiBoZXJlLgoKQWxzbyBJIHRoaW5rIHdlIHNob3VsZG4ndCBjaGFu Z2UgdGhlIG1vZHVsZSBvcHRpb24sIGluc3RlYWQgaXQncwpjb25jZXB0dWFsbHkgY2xlYW5lciB0 byBqdXN0IG5vdCBzZXQgdXAgcmM2IGluIGdlblhfZW5hYmxlX3JjNiwgaS5lLgoKCWlmICghY2hl Y2tfYmlvc19yYzZfc2V0dXAoKSkKCQlyZXR1cm47Cgpzb21ld2hlcmUgYXQgdGhlIGJlZ2lubmlu ZyBvZiBnZW45X2VuYWJsZV9yYzYgbGlrZSB5b3UgaGFkIGluIHRoZSBwcmV2aW91cwpwYXRjaC4K LURhbmllbAoKPiArCj4gIAkvKiBCSU9TIG9mdGVuIGxlYXZlcyBSQzYgZW5hYmxlZCwgYnV0IGRp c2FibGUgaXQgZm9yIGh3IGluaXQgKi8KPiAgCWludGVsX2Rpc2FibGVfZ3RfcG93ZXJzYXZlKGRl dik7Cj4gIH0KPiAtLSAKPiAxLjkuMQo+IAo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fCj4gSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdAo+IEludGVsLWdmeEBs aXN0cy5mcmVlZGVza3RvcC5vcmcKPiBodHRwOi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxt YW4vbGlzdGluZm8vaW50ZWwtZ2Z4CgotLSAKRGFuaWVsIFZldHRlcgpTb2Z0d2FyZSBFbmdpbmVl ciwgSW50ZWwgQ29ycG9yYXRpb24KaHR0cDovL2Jsb2cuZmZ3bGwuY2gKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlzdApJ bnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHA6Ly9saXN0cy5mcmVlZGVza3RvcC5v cmcvbWFpbG1hbi9saXN0aW5mby9pbnRlbC1nZngK