From mboxrd@z Thu Jan 1 00:00:00 1970 From: deepak.s@intel.com Subject: [PATCH v6] drm/i915/vlv: WA to fix Voltage not getting dropped to Vmin when Gfx is power gated. Date: Thu, 30 Jan 2014 23:08:16 +0530 Message-ID: <1391103496-27418-1-git-send-email-deepak.s@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTP id 14021102265 for ; Thu, 30 Jan 2014 09:37:22 -0800 (PST) List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org To: intel-gfx@lists.freedesktop.org Cc: Deepak S List-Id: intel-gfx@lists.freedesktop.org RnJvbTogRGVlcGFrIFMgPGRlZXBhay5zQGludGVsLmNvbT4KCldoZW4gd2UgZW50ZXIgUkM2IGFu ZCBHRlggQ2xvY2tzIGFyZSBvZmYsIHRoZSB2b2x0YWdlIHJlbWFpbnMgaGlnaGVyCnRoYW4gVm1p bi4gV2hlbiB3ZSB0cnkgdG8gc2V0IHRoZSBmcmVxIHRvIFJQbiwgaXQgbWlnaHQgZmFpbCBzaW5j ZSB0aGUKR2Z4IGNsb2NrcyBhcmUgZG93bi4gU28gdG8gZml4IHRoaXMgaW4gR2Z4IGlkbGUsIEJy aW5nIHRoZSBHRlggY2xvY2sgdXAKYW5kIHNldCB0aGUgZnJlcSB0byBSUG4gdGhlbiBtb3ZlIEdG eCBkb3duLgoKdjI6IHJlbW92ZSB2bHZfdXBkYXRlX3Jwc19jdXJfZGVsYXkgZnVuY3Rpb24uIFVw ZGF0ZSBjb21taXQgbWVzc2FnZSAoRGFuaWVsKQoKdjM6IEZpeCB0aGUgdGltZW91dCBkdXJpbmcg d2FpdCBmb3IgZ2Z4IGNsb2NrIChKZXNzZSkKCnY0OiBhZGRyZXNzZWQgY29tbWVudHMgb24gc2V0 IGZyZXEgYW5kIHB1bml0IHdhaXQgKFZpbGxlKQoKdjU6IHVzZSB3YWl0X2ZvciB3aGlsZSB3YWl0 aW5nIGZvciBHRlggY2xrIHRvIGJlIHVwLiAoRGFuaWVsKQogICAgdXBkYXRlIGN1cl9kZWxheSBi ZWZvcmUgcmVxdWVzdGluZyBtaW5fZGVsYXkuIChWaWxsZSkKCnY2OiB1c2Ugd2FpdF9mb3Igd2hp bGUgd2FpdGluZyBmb3IgcHVuaXQuIChWaWxsZSkKClNpZ25lZC1vZmYtYnk6IERlZXBhayBTIDxk ZWVwYWsuc0BpbnRlbC5jb20+ClJldmlld2VkLWJ5OiBWaWxsZSBTeXJqw6QgPHZpbGxlLnN5cmph bGFAbGludXguaW50ZWwuY29tPgotLS0KIGRyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfZHJ2Lmgg fCAgMiArKwogZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9pcnEuYyB8ICAyICstCiBkcml2ZXJz L2dwdS9kcm0vaTkxNS9pOTE1X3JlZy5oIHwgIDQgKysrCiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9p bnRlbF9wbS5jIHwgNTUgKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKy0K IDQgZmlsZXMgY2hhbmdlZCwgNjEgaW5zZXJ0aW9ucygrKSwgMiBkZWxldGlvbnMoLSkKCmRpZmYg LS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5oIGIvZHJpdmVycy9ncHUvZHJt L2k5MTUvaTkxNV9kcnYuaAppbmRleCBhYzVjZDdlLi42ZjkxMDhkIDEwMDY0NAotLS0gYS9kcml2 ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2Rydi5oCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5 MTVfZHJ2LmgKQEAgLTE5NjEsNiArMTk2MSw4IEBAIGV4dGVybiB2b2lkIGludGVsX2NvbnNvbGVf cmVzdW1lKHN0cnVjdCB3b3JrX3N0cnVjdCAqd29yayk7CiB2b2lkIGk5MTVfcXVldWVfaGFuZ2No ZWNrKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYpOwogdm9pZCBpOTE1X2hhbmRsZV9lcnJvcihzdHJ1 Y3QgZHJtX2RldmljZSAqZGV2LCBib29sIHdlZGdlZCk7CiAKK3ZvaWQgZ2VuNl9zZXRfcG1fbWFz ayhzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYsIHUzMiBwbV9paXIsCisJCQkJCQkJ aW50IG5ld19kZWxheSk7CiBleHRlcm4gdm9pZCBpbnRlbF9pcnFfaW5pdChzdHJ1Y3QgZHJtX2Rl dmljZSAqZGV2KTsKIGV4dGVybiB2b2lkIGludGVsX2hwZF9pbml0KHN0cnVjdCBkcm1fZGV2aWNl ICpkZXYpOwogCmRpZmYgLS1naXQgYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2lycS5jIGIv ZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9pcnEuYwppbmRleCBiMjI2YWU2Li5hY2JlZTczIDEw MDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pOTE1X2lycS5jCisrKyBiL2RyaXZlcnMv Z3B1L2RybS9pOTE1L2k5MTVfaXJxLmMKQEAgLTk4Niw3ICs5ODYsNyBAQCBzdGF0aWMgdm9pZCBu b3RpZnlfcmluZyhzdHJ1Y3QgZHJtX2RldmljZSAqZGV2LAogCWk5MTVfcXVldWVfaGFuZ2NoZWNr KGRldik7CiB9CiAKLXN0YXRpYyB2b2lkIGdlbjZfc2V0X3BtX21hc2soc3RydWN0IGRybV9pOTE1 X3ByaXZhdGUgKmRldl9wcml2LAordm9pZCBnZW42X3NldF9wbV9tYXNrKHN0cnVjdCBkcm1faTkx NV9wcml2YXRlICpkZXZfcHJpdiwKIAkJCSAgICAgdTMyIHBtX2lpciwgaW50IG5ld19kZWxheSkK IHsKIAlpZiAocG1faWlyICYgR0VONl9QTV9SUF9VUF9USFJFU0hPTEQpIHsKZGlmZiAtLWdpdCBh L2RyaXZlcnMvZ3B1L2RybS9pOTE1L2k5MTVfcmVnLmggYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9p OTE1X3JlZy5oCmluZGV4IGNiYmFmMjYuLjAwZDJmMmQgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1 L2RybS9pOTE1L2k5MTVfcmVnLmgKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaTkxNV9yZWcu aApAQCAtNDk0OSw2ICs0OTQ5LDEwIEBACiAJCQkJCQkgR0VONl9QTV9SUF9ET1dOX1RIUkVTSE9M RCB8IFwKIAkJCQkJCSBHRU42X1BNX1JQX0RPV05fVElNRU9VVCkKIAorI2RlZmluZSBWTFZfR1RM Q19TVVJWSVZBQklMSVRZX1JFRyAgICAgICAgICAgICAgMHgxMzAwOTgKKyNkZWZpbmUgVkxWX0dG WF9DTEtfU1RBVFVTX0JJVAkJCSgxPDwzKQorI2RlZmluZSBWTFZfR0ZYX0NMS19GT1JDRV9PTl9C SVQJCSgxPDwyKQorCiAjZGVmaW5lIEdFTjZfR1RfR0ZYX1JDNl9MT0NLRUQJCQkweDEzODEwNAog I2RlZmluZSBWTFZfQ09VTlRFUl9DT05UUk9MCQkJMHgxMzgxMDQKICNkZWZpbmUgICBWTFZfQ09V TlRfUkFOR0VfSElHSAkJCSgxPDwxNSkKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1 L2ludGVsX3BtLmMgYi9kcml2ZXJzL2dwdS9kcm0vaTkxNS9pbnRlbF9wbS5jCmluZGV4IDQ4NzZi YTUuLjNiNWExYjkgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2ludGVsX3BtLmMK KysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvaW50ZWxfcG0uYwpAQCAtMzAzOCw2ICszMDM4LDU4 IEBAIHZvaWQgZ2VuNl9zZXRfcnBzKHN0cnVjdCBkcm1fZGV2aWNlICpkZXYsIHU4IHZhbCkKIAl0 cmFjZV9pbnRlbF9ncHVfZnJlcV9jaGFuZ2UodmFsICogNTApOwogfQogCisvKiB2bHZfc2V0X3Jw c19pZGxlOiBTZXQgdGhlIGZyZXF1ZW5jeSB0byBScG4gaWYgR2Z4IGNsb2NrcyBhcmUgZG93bgor ICoKKyAqICogSWYgR2Z4IGlzIElkbGUsIHRoZW4KKyAqIDEuIE1hc2sgVHVyYm8gaW50ZXJydXB0 cworICogMi4gQnJpbmcgdXAgR2Z4IGNsb2NrCisgKiAzLiBDaGFuZ2UgdGhlIGZyZXEgdG8gUnBu IGFuZCB3YWl0IHRpbGwgUC1Vbml0IHVwZGF0ZXMgZnJlcQorICogNC4gQ2xlYXIgdGhlIEZvcmNl IEdGWCBDTEsgT04gYml0IHNvIHRoYXQgR2Z4IGNhbiBkb3duCisgKiA1LiBVbm1hc2sgVHVyYm8g aW50ZXJydXB0cworKi8KK3N0YXRpYyB2b2lkIHZsdl9zZXRfcnBzX2lkbGUoc3RydWN0IGRybV9p OTE1X3ByaXZhdGUgKmRldl9wcml2KQoreworCS8qCisJICogV2hlbiB3ZSBhcmUgaWRsZS4gIERy b3AgdG8gbWluIHZvbHRhZ2Ugc3RhdGUuCisJICovCisKKwlpZiAoZGV2X3ByaXYtPnJwcy5jdXJf ZGVsYXkgPD0gZGV2X3ByaXYtPnJwcy5taW5fZGVsYXkpCisJCXJldHVybjsKKworCS8qIE1hc2sg dHVyYm8gaW50ZXJydXB0IHNvIHRoYXQgdGhleSB3aWxsIG5vdCBjb21lIGluIGJldHdlZW4gKi8K KwlJOTE1X1dSSVRFKEdFTjZfUE1JTlRSTVNLLCAweGZmZmZmZmZmKTsKKworCS8qIEJyaW5nIHVw IHRoZSBHZnggY2xvY2sgKi8KKwlJOTE1X1dSSVRFKFZMVl9HVExDX1NVUlZJVkFCSUxJVFlfUkVH LAorCQlJOTE1X1JFQUQoVkxWX0dUTENfU1VSVklWQUJJTElUWV9SRUcpIHwKKwkJCQlWTFZfR0ZY X0NMS19GT1JDRV9PTl9CSVQpOworCisJaWYgKHdhaXRfZm9yKCgoVkxWX0dGWF9DTEtfU1RBVFVT X0JJVCAmCisJCUk5MTVfUkVBRChWTFZfR1RMQ19TVVJWSVZBQklMSVRZX1JFRykpICE9IDApLCA1 KSkgeworCQkJRFJNX0VSUk9SKCJHRlhfQ0xLX09OIHJlcXVlc3QgdGltZWQgb3V0XG4iKTsKKwkJ cmV0dXJuOworCX0KKworCWRldl9wcml2LT5ycHMuY3VyX2RlbGF5ID0gZGV2X3ByaXYtPnJwcy5t aW5fZGVsYXk7CisKKwl2bHZfcHVuaXRfd3JpdGUoZGV2X3ByaXYsIFBVTklUX1JFR19HUFVfRlJF UV9SRVEsCisJCQkJCWRldl9wcml2LT5ycHMubWluX2RlbGF5KTsKKworCWlmICh3YWl0X2Zvcigo KHZsdl9wdW5pdF9yZWFkKGRldl9wcml2LCBQVU5JVF9SRUdfR1BVX0ZSRVFfU1RTKSkKKwkJCQkm IEdFTkZSRVFTVEFUVVMpID09IDAsIDUpKQorCQlEUk1fRVJST1IoInRpbWVkIG91dCB3YWl0aW5n IGZvciBQdW5pdFxuIik7CisKKwkvKiBSZWxlYXNlIHRoZSBHZnggY2xvY2sgKi8KKwlJOTE1X1dS SVRFKFZMVl9HVExDX1NVUlZJVkFCSUxJVFlfUkVHLAorCQlJOTE1X1JFQUQoVkxWX0dUTENfU1VS VklWQUJJTElUWV9SRUcpICYKKwkJCQl+VkxWX0dGWF9DTEtfRk9SQ0VfT05fQklUKTsKKworCS8q IFVubWFzayBVcCBpbnRlcnJ1cHRzICovCisJZGV2X3ByaXYtPnJwcy5ycF91cF9tYXNrZWQgPSB0 cnVlOworCWdlbjZfc2V0X3BtX21hc2soZGV2X3ByaXYsIEdFTjZfUE1fUlBfRE9XTl9USFJFU0hP TEQsCisJCQkJCQlkZXZfcHJpdi0+cnBzLm1pbl9kZWxheSk7Cit9CisKIHZvaWQgZ2VuNl9ycHNf aWRsZShzdHJ1Y3QgZHJtX2k5MTVfcHJpdmF0ZSAqZGV2X3ByaXYpCiB7CiAJc3RydWN0IGRybV9k ZXZpY2UgKmRldiA9IGRldl9wcml2LT5kZXY7CkBAIC0zMDQ1LDcgKzMwOTcsNyBAQCB2b2lkIGdl bjZfcnBzX2lkbGUoc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2KQogCW11dGV4X2xv Y2soJmRldl9wcml2LT5ycHMuaHdfbG9jayk7CiAJaWYgKGRldl9wcml2LT5ycHMuZW5hYmxlZCkg ewogCQlpZiAoSVNfVkFMTEVZVklFVyhkZXYpKQotCQkJdmFsbGV5dmlld19zZXRfcnBzKGRldl9w cml2LT5kZXYsIGRldl9wcml2LT5ycHMubWluX2RlbGF5KTsKKwkJCXZsdl9zZXRfcnBzX2lkbGUo ZGV2X3ByaXYpOwogCQllbHNlCiAJCQlnZW42X3NldF9ycHMoZGV2X3ByaXYtPmRldiwgZGV2X3By aXYtPnJwcy5taW5fZGVsYXkpOwogCQlkZXZfcHJpdi0+cnBzLmxhc3RfYWRqID0gMDsKQEAgLTQy NzYsNiArNDMyOCw3IEBAIHZvaWQgaW50ZWxfZ3B1X2lwc190ZWFyZG93bih2b2lkKQogCWk5MTVf bWNoX2RldiA9IE5VTEw7CiAJc3Bpbl91bmxvY2tfaXJxKCZtY2hkZXZfbG9jayk7CiB9CisKIHN0 YXRpYyB2b2lkIGludGVsX2luaXRfZW1vbihzdHJ1Y3QgZHJtX2RldmljZSAqZGV2KQogewogCXN0 cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZfcHJpdiA9IGRldi0+ZGV2X3ByaXZhdGU7Ci0tIAox LjguNS4yCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpJ bnRlbC1nZnggbWFpbGluZyBsaXN0CkludGVsLWdmeEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0 cDovL2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ludGVsLWdmeAo=