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Wed, 14 Jul 2021 16:18:51 +0300 From: Ville Syrjala To: intel-gfx@lists.freedesktop.org Subject: [PATCH v2 4/4] drm/i915/fbc: Allow FBC + VT-d on SKL/BXT Date: Wed, 14 Jul 2021 16:18:37 +0300 Message-Id: <20210714131837.8978-5-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210714131837.8978-1-ville.syrjala@linux.intel.com> References: <20210714131837.8978-1-ville.syrjala@linux.intel.com> MIME-Version: 1.0 Cc: iommu@lists.linux-foundation.org, David Woodhouse X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" RnJvbTogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4LmludGVsLmNvbT4KCldp dGggdGhlIGlvbW11IGRyaXZlciBkaXNhYmxpbmcgVlQtZCBzdXBlcnBhZ2UgaXQgc2hvdWxkIGJl CnNhZmUgdG8gdXNlIEZCQyBvbiBTS0wvQlhUIHdpdGggVlQtZCBvdGhlcndpc2UgZW5hYmxlZC4K CkNjOiBEYXZpZCBXb29kaG91c2UgPGR3bXcyQGluZnJhZGVhZC5vcmc+CkNjOiBMdSBCYW9sdSA8 YmFvbHUubHVAbGludXguaW50ZWwuY29tPgpDYzogaW9tbXVAbGlzdHMubGludXgtZm91bmRhdGlv bi5vcmcKU2lnbmVkLW9mZi1ieTogVmlsbGUgU3lyasOkbMOkIDx2aWxsZS5zeXJqYWxhQGxpbnV4 LmludGVsLmNvbT4KLS0tCiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ludGVsX2ZiYy5j IHwgMTYgLS0tLS0tLS0tLS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDE2IGRlbGV0aW9ucygtKQoK ZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2Rpc3BsYXkvaW50ZWxfZmJjLmMgYi9k cml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5L2ludGVsX2ZiYy5jCmluZGV4IDgyZWZmYjY0YTNi OS4uZGU0NGY5M2EzM2QwIDEwMDY0NAotLS0gYS9kcml2ZXJzL2dwdS9kcm0vaTkxNS9kaXNwbGF5 L2ludGVsX2ZiYy5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2Rpc3BsYXkvaW50ZWxfZmJj LmMKQEAgLTE0NDgsMTkgKzE0NDgsNiBAQCBzdGF0aWMgaW50IGludGVsX3Nhbml0aXplX2ZiY19v cHRpb24oc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRldl9wcml2KQogCXJldHVybiAwOwogfQog Ci1zdGF0aWMgYm9vbCBuZWVkX2ZiY192dGRfd2Eoc3RydWN0IGRybV9pOTE1X3ByaXZhdGUgKmRl dl9wcml2KQotewotCS8qIFdhRmJjVHVybk9mZkZiY1doZW5IeXBlclZpc29ySXNVc2VkOnNrbCxi eHQgKi8KLQlpZiAoaW50ZWxfdnRkX2FjdGl2ZSgpICYmCi0JICAgIChJU19TS1lMQUtFKGRldl9w cml2KSB8fCBJU19CUk9YVE9OKGRldl9wcml2KSkpIHsKLQkJZHJtX2luZm8oJmRldl9wcml2LT5k cm0sCi0JCQkgIkRpc2FibGluZyBmcmFtZWJ1ZmZlciBjb21wcmVzc2lvbiAoRkJDKSB0byBwcmV2 ZW50IHNjcmVlbiBmbGlja2VyIHdpdGggVlQtZCBlbmFibGVkXG4iKTsKLQkJcmV0dXJuIHRydWU7 Ci0JfQotCi0JcmV0dXJuIGZhbHNlOwotfQotCiAvKioKICAqIGludGVsX2ZiY19pbml0IC0gSW5p dGlhbGl6ZSBGQkMKICAqIEBkZXZfcHJpdjogdGhlIGk5MTUgZGV2aWNlCkBAIC0xNDc4LDkgKzE0 NjUsNiBAQCB2b2lkIGludGVsX2ZiY19pbml0KHN0cnVjdCBkcm1faTkxNV9wcml2YXRlICpkZXZf cHJpdikKIAlpZiAoIWRybV9tbV9pbml0aWFsaXplZCgmZGV2X3ByaXYtPm1tLnN0b2xlbikpCiAJ CW1rd3JpdGVfZGV2aWNlX2luZm8oZGV2X3ByaXYpLT5kaXNwbGF5Lmhhc19mYmMgPSBmYWxzZTsK IAotCWlmIChuZWVkX2ZiY192dGRfd2EoZGV2X3ByaXYpKQotCQlta3dyaXRlX2RldmljZV9pbmZv KGRldl9wcml2KS0+ZGlzcGxheS5oYXNfZmJjID0gZmFsc2U7Ci0KIAlkZXZfcHJpdi0+cGFyYW1z LmVuYWJsZV9mYmMgPSBpbnRlbF9zYW5pdGl6ZV9mYmNfb3B0aW9uKGRldl9wcml2KTsKIAlkcm1f ZGJnX2ttcygmZGV2X3ByaXYtPmRybSwgIlNhbml0aXplZCBlbmFibGVfZmJjIHZhbHVlOiAlZFxu IiwKIAkJICAgIGRldl9wcml2LT5wYXJhbXMuZW5hYmxlX2ZiYyk7Ci0tIAoyLjMxLjEKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmlvbW11IG1haWxpbmcg bGlzdAppb21tdUBsaXN0cy5saW51eC1mb3VuZGF0aW9uLm9yZwpodHRwczovL2xpc3RzLmxpbnV4 Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5mby9pb21tdQ== From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A5D7DC07E9A for ; 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d="scan'208";a="210386714" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Jul 2021 06:18:55 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.84,239,1620716400"; d="scan'208";a="571172012" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.171]) by fmsmga001.fm.intel.com with SMTP; 14 Jul 2021 06:18:52 -0700 Received: by stinkbox (sSMTP sendmail emulation); Wed, 14 Jul 2021 16:18:51 +0300 From: Ville Syrjala To: intel-gfx@lists.freedesktop.org Date: Wed, 14 Jul 2021 16:18:37 +0300 Message-Id: <20210714131837.8978-5-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210714131837.8978-1-ville.syrjala@linux.intel.com> References: <20210714131837.8978-1-ville.syrjala@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 4/4] drm/i915/fbc: Allow FBC + VT-d on SKL/BXT X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: iommu@lists.linux-foundation.org, David Woodhouse , Lu Baolu Content-Type: text/plain; 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