From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lucas De Marchi Subject: [PATCH 4/5] drm/i915: avoid reading DP_TP_CTL twice Date: Tue, 29 Oct 2019 18:24:47 -0700 Message-ID: <20191030012448.14937-5-lucas.demarchi@intel.com> References: <20191030012448.14937-1-lucas.demarchi@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 041AD6E868 for ; Wed, 30 Oct 2019 01:25:11 +0000 (UTC) In-Reply-To: <20191030012448.14937-1-lucas.demarchi@intel.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org SnVzdCBhdm9pZCB0aGUgYWRkaXRpb25hbCByZWFkIGluIGNhc2UgRFBfVFBfQ1RMIGlzIGVuYWJs ZWQ6CnJlYWQgaXQgb25jZSBhbmQgc2F2ZSB0aGUgdmFsdWUuCgpTaWduZWQtb2ZmLWJ5OiBMdWNh cyBEZSBNYXJjaGkgPGx1Y2FzLmRlbWFyY2hpQGludGVsLmNvbT4KLS0tCiBkcml2ZXJzL2dwdS9k cm0vaTkxNS9kaXNwbGF5L2ludGVsX2RkaS5jIHwgMzMgKysrKysrKysrKysrLS0tLS0tLS0tLS0t CiAxIGZpbGUgY2hhbmdlZCwgMTcgaW5zZXJ0aW9ucygrKSwgMTYgZGVsZXRpb25zKC0pCgpkaWZm IC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9kZGkuYyBiL2RyaXZl cnMvZ3B1L2RybS9pOTE1L2Rpc3BsYXkvaW50ZWxfZGRpLmMKaW5kZXggMmNlOTk4NTI5ZDA4Li40 MWI5YjlhNjc3MmEgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2Rpc3BsYXkvaW50 ZWxfZGRpLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9kZGkuYwpA QCAtNDE0OCwzNyArNDE0OCwzOCBAQCBzdGF0aWMgdm9pZCBpbnRlbF9kZGlfcHJlcGFyZV9saW5r X3JldHJhaW4oc3RydWN0IGludGVsX2RwICppbnRlbF9kcCkKIAlzdHJ1Y3QgZHJtX2k5MTVfcHJp dmF0ZSAqZGV2X3ByaXYgPQogCQl0b19pOTE1KGludGVsX2RpZ19wb3J0LT5iYXNlLmJhc2UuZGV2 KTsKIAllbnVtIHBvcnQgcG9ydCA9IGludGVsX2RpZ19wb3J0LT5iYXNlLnBvcnQ7Ci0JdTMyIHZh bDsKKwl1MzIgZHBfdHBfY3RsLCBkZGlfYnVmX2N0bDsKIAlib29sIHdhaXQgPSBmYWxzZTsKIAot CWlmIChJOTE1X1JFQUQoaW50ZWxfZHAtPnJlZ3MuZHBfdHBfY3RsKSAmIERQX1RQX0NUTF9FTkFC TEUpIHsKLQkJdmFsID0gSTkxNV9SRUFEKERESV9CVUZfQ1RMKHBvcnQpKTsKLQkJaWYgKHZhbCAm IERESV9CVUZfQ1RMX0VOQUJMRSkgewotCQkJdmFsICY9IH5ERElfQlVGX0NUTF9FTkFCTEU7Ci0J CQlJOTE1X1dSSVRFKERESV9CVUZfQ1RMKHBvcnQpLCB2YWwpOworCWRwX3RwX2N0bCA9IEk5MTVf UkVBRChpbnRlbF9kcC0+cmVncy5kcF90cF9jdGwpOworCisJaWYgKGRwX3RwX2N0bCAmIERQX1RQ X0NUTF9FTkFCTEUpIHsKKwkJZGRpX2J1Zl9jdGwgPSBJOTE1X1JFQUQoRERJX0JVRl9DVEwocG9y dCkpOworCQlpZiAoZGRpX2J1Zl9jdGwgJiBERElfQlVGX0NUTF9FTkFCTEUpIHsKKwkJCUk5MTVf V1JJVEUoRERJX0JVRl9DVEwocG9ydCksCisJCQkJICAgZGRpX2J1Zl9jdGwgJiB+RERJX0JVRl9D VExfRU5BQkxFKTsKIAkJCXdhaXQgPSB0cnVlOwogCQl9CiAKLQkJdmFsID0gSTkxNV9SRUFEKGlu dGVsX2RwLT5yZWdzLmRwX3RwX2N0bCk7Ci0JCXZhbCAmPSB+KERQX1RQX0NUTF9FTkFCTEUgfCBE UF9UUF9DVExfTElOS19UUkFJTl9NQVNLKTsKLQkJdmFsIHw9IERQX1RQX0NUTF9MSU5LX1RSQUlO X1BBVDE7Ci0JCUk5MTVfV1JJVEUoaW50ZWxfZHAtPnJlZ3MuZHBfdHBfY3RsLCB2YWwpOworCQlk cF90cF9jdGwgJj0gfihEUF9UUF9DVExfRU5BQkxFIHwgRFBfVFBfQ1RMX0xJTktfVFJBSU5fTUFT Syk7CisJCWRwX3RwX2N0bCB8PSBEUF9UUF9DVExfTElOS19UUkFJTl9QQVQxOworCQlJOTE1X1dS SVRFKGludGVsX2RwLT5yZWdzLmRwX3RwX2N0bCwgZHBfdHBfY3RsKTsKIAkJUE9TVElOR19SRUFE KGludGVsX2RwLT5yZWdzLmRwX3RwX2N0bCk7CiAKIAkJaWYgKHdhaXQpCiAJCQlpbnRlbF93YWl0 X2RkaV9idWZfaWRsZShkZXZfcHJpdiwgcG9ydCk7CiAJfQogCi0JdmFsID0gRFBfVFBfQ1RMX0VO QUJMRSB8Ci0JICAgICAgRFBfVFBfQ1RMX0xJTktfVFJBSU5fUEFUMSB8IERQX1RQX0NUTF9TQ1JB TUJMRV9ESVNBQkxFOworCWRwX3RwX2N0bCA9IERQX1RQX0NUTF9FTkFCTEUgfAorCQkgICAgRFBf VFBfQ1RMX0xJTktfVFJBSU5fUEFUMSB8IERQX1RQX0NUTF9TQ1JBTUJMRV9ESVNBQkxFOwogCWlm IChpbnRlbF9kcC0+bGlua19tc3QpCi0JCXZhbCB8PSBEUF9UUF9DVExfTU9ERV9NU1Q7CisJCWRw X3RwX2N0bCB8PSBEUF9UUF9DVExfTU9ERV9NU1Q7CiAJZWxzZSB7Ci0JCXZhbCB8PSBEUF9UUF9D VExfTU9ERV9TU1Q7CisJCWRwX3RwX2N0bCB8PSBEUF9UUF9DVExfTU9ERV9TU1Q7CiAJCWlmIChk cm1fZHBfZW5oYW5jZWRfZnJhbWVfY2FwKGludGVsX2RwLT5kcGNkKSkKLQkJCXZhbCB8PSBEUF9U UF9DVExfRU5IQU5DRURfRlJBTUVfRU5BQkxFOworCQkJZHBfdHBfY3RsIHw9IERQX1RQX0NUTF9F TkhBTkNFRF9GUkFNRV9FTkFCTEU7CiAJfQotCUk5MTVfV1JJVEUoaW50ZWxfZHAtPnJlZ3MuZHBf dHBfY3RsLCB2YWwpOworCUk5MTVfV1JJVEUoaW50ZWxfZHAtPnJlZ3MuZHBfdHBfY3RsLCBkcF90 cF9jdGwpOwogCVBPU1RJTkdfUkVBRChpbnRlbF9kcC0+cmVncy5kcF90cF9jdGwpOwogCiAJaW50 ZWxfZHAtPkRQIHw9IERESV9CVUZfQ1RMX0VOQUJMRTsKLS0gCjIuMjMuMAoKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlz dApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0 b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4 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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 CDDB8CA9EAE for ; Wed, 30 Oct 2019 01:25:18 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A911520866 for ; Wed, 30 Oct 2019 01:25:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A911520866 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7BD246EC73; Wed, 30 Oct 2019 01:25:13 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by gabe.freedesktop.org (Postfix) with ESMTPS id 041AD6E868 for ; Wed, 30 Oct 2019 01:25:11 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 29 Oct 2019 18:25:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.68,245,1569308400"; d="scan'208";a="211945564" Received: from ldmartin-desk1.jf.intel.com ([10.7.200.70]) by orsmga002.jf.intel.com with ESMTP; 29 Oct 2019 18:25:10 -0700 From: Lucas De Marchi To: intel-gfx@lists.freedesktop.org Date: Tue, 29 Oct 2019 18:24:47 -0700 Message-Id: <20191030012448.14937-5-lucas.demarchi@intel.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191030012448.14937-1-lucas.demarchi@intel.com> References: <20191030012448.14937-1-lucas.demarchi@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 4/5] drm/i915: avoid reading DP_TP_CTL twice X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Message-ID: <20191030012447._V9y76HPuK4v52TyRm1t47WMQjcnMfiRcrAtV3e9Z5k@z> SnVzdCBhdm9pZCB0aGUgYWRkaXRpb25hbCByZWFkIGluIGNhc2UgRFBfVFBfQ1RMIGlzIGVuYWJs ZWQ6CnJlYWQgaXQgb25jZSBhbmQgc2F2ZSB0aGUgdmFsdWUuCgpTaWduZWQtb2ZmLWJ5OiBMdWNh cyBEZSBNYXJjaGkgPGx1Y2FzLmRlbWFyY2hpQGludGVsLmNvbT4KLS0tCiBkcml2ZXJzL2dwdS9k cm0vaTkxNS9kaXNwbGF5L2ludGVsX2RkaS5jIHwgMzMgKysrKysrKysrKysrLS0tLS0tLS0tLS0t CiAxIGZpbGUgY2hhbmdlZCwgMTcgaW5zZXJ0aW9ucygrKSwgMTYgZGVsZXRpb25zKC0pCgpkaWZm IC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9kZGkuYyBiL2RyaXZl cnMvZ3B1L2RybS9pOTE1L2Rpc3BsYXkvaW50ZWxfZGRpLmMKaW5kZXggMmNlOTk4NTI5ZDA4Li40 MWI5YjlhNjc3MmEgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2Rpc3BsYXkvaW50 ZWxfZGRpLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZGlzcGxheS9pbnRlbF9kZGkuYwpA QCAtNDE0OCwzNyArNDE0OCwzOCBAQCBzdGF0aWMgdm9pZCBpbnRlbF9kZGlfcHJlcGFyZV9saW5r X3JldHJhaW4oc3RydWN0IGludGVsX2RwICppbnRlbF9kcCkKIAlzdHJ1Y3QgZHJtX2k5MTVfcHJp dmF0ZSAqZGV2X3ByaXYgPQogCQl0b19pOTE1KGludGVsX2RpZ19wb3J0LT5iYXNlLmJhc2UuZGV2 KTsKIAllbnVtIHBvcnQgcG9ydCA9IGludGVsX2RpZ19wb3J0LT5iYXNlLnBvcnQ7Ci0JdTMyIHZh bDsKKwl1MzIgZHBfdHBfY3RsLCBkZGlfYnVmX2N0bDsKIAlib29sIHdhaXQgPSBmYWxzZTsKIAot CWlmIChJOTE1X1JFQUQoaW50ZWxfZHAtPnJlZ3MuZHBfdHBfY3RsKSAmIERQX1RQX0NUTF9FTkFC TEUpIHsKLQkJdmFsID0gSTkxNV9SRUFEKERESV9CVUZfQ1RMKHBvcnQpKTsKLQkJaWYgKHZhbCAm IERESV9CVUZfQ1RMX0VOQUJMRSkgewotCQkJdmFsICY9IH5ERElfQlVGX0NUTF9FTkFCTEU7Ci0J CQlJOTE1X1dSSVRFKERESV9CVUZfQ1RMKHBvcnQpLCB2YWwpOworCWRwX3RwX2N0bCA9IEk5MTVf UkVBRChpbnRlbF9kcC0+cmVncy5kcF90cF9jdGwpOworCisJaWYgKGRwX3RwX2N0bCAmIERQX1RQ X0NUTF9FTkFCTEUpIHsKKwkJZGRpX2J1Zl9jdGwgPSBJOTE1X1JFQUQoRERJX0JVRl9DVEwocG9y dCkpOworCQlpZiAoZGRpX2J1Zl9jdGwgJiBERElfQlVGX0NUTF9FTkFCTEUpIHsKKwkJCUk5MTVf V1JJVEUoRERJX0JVRl9DVEwocG9ydCksCisJCQkJICAgZGRpX2J1Zl9jdGwgJiB+RERJX0JVRl9D VExfRU5BQkxFKTsKIAkJCXdhaXQgPSB0cnVlOwogCQl9CiAKLQkJdmFsID0gSTkxNV9SRUFEKGlu dGVsX2RwLT5yZWdzLmRwX3RwX2N0bCk7Ci0JCXZhbCAmPSB+KERQX1RQX0NUTF9FTkFCTEUgfCBE UF9UUF9DVExfTElOS19UUkFJTl9NQVNLKTsKLQkJdmFsIHw9IERQX1RQX0NUTF9MSU5LX1RSQUlO X1BBVDE7Ci0JCUk5MTVfV1JJVEUoaW50ZWxfZHAtPnJlZ3MuZHBfdHBfY3RsLCB2YWwpOworCQlk cF90cF9jdGwgJj0gfihEUF9UUF9DVExfRU5BQkxFIHwgRFBfVFBfQ1RMX0xJTktfVFJBSU5fTUFT Syk7CisJCWRwX3RwX2N0bCB8PSBEUF9UUF9DVExfTElOS19UUkFJTl9QQVQxOworCQlJOTE1X1dS SVRFKGludGVsX2RwLT5yZWdzLmRwX3RwX2N0bCwgZHBfdHBfY3RsKTsKIAkJUE9TVElOR19SRUFE KGludGVsX2RwLT5yZWdzLmRwX3RwX2N0bCk7CiAKIAkJaWYgKHdhaXQpCiAJCQlpbnRlbF93YWl0 X2RkaV9idWZfaWRsZShkZXZfcHJpdiwgcG9ydCk7CiAJfQogCi0JdmFsID0gRFBfVFBfQ1RMX0VO QUJMRSB8Ci0JICAgICAgRFBfVFBfQ1RMX0xJTktfVFJBSU5fUEFUMSB8IERQX1RQX0NUTF9TQ1JB TUJMRV9ESVNBQkxFOworCWRwX3RwX2N0bCA9IERQX1RQX0NUTF9FTkFCTEUgfAorCQkgICAgRFBf VFBfQ1RMX0xJTktfVFJBSU5fUEFUMSB8IERQX1RQX0NUTF9TQ1JBTUJMRV9ESVNBQkxFOwogCWlm IChpbnRlbF9kcC0+bGlua19tc3QpCi0JCXZhbCB8PSBEUF9UUF9DVExfTU9ERV9NU1Q7CisJCWRw X3RwX2N0bCB8PSBEUF9UUF9DVExfTU9ERV9NU1Q7CiAJZWxzZSB7Ci0JCXZhbCB8PSBEUF9UUF9D VExfTU9ERV9TU1Q7CisJCWRwX3RwX2N0bCB8PSBEUF9UUF9DVExfTU9ERV9TU1Q7CiAJCWlmIChk cm1fZHBfZW5oYW5jZWRfZnJhbWVfY2FwKGludGVsX2RwLT5kcGNkKSkKLQkJCXZhbCB8PSBEUF9U UF9DVExfRU5IQU5DRURfRlJBTUVfRU5BQkxFOworCQkJZHBfdHBfY3RsIHw9IERQX1RQX0NUTF9F TkhBTkNFRF9GUkFNRV9FTkFCTEU7CiAJfQotCUk5MTVfV1JJVEUoaW50ZWxfZHAtPnJlZ3MuZHBf dHBfY3RsLCB2YWwpOworCUk5MTVfV1JJVEUoaW50ZWxfZHAtPnJlZ3MuZHBfdHBfY3RsLCBkcF90 cF9jdGwpOwogCVBPU1RJTkdfUkVBRChpbnRlbF9kcC0+cmVncy5kcF90cF9jdGwpOwogCiAJaW50 ZWxfZHAtPkRQIHw9IERESV9CVUZfQ1RMX0VOQUJMRTsKLS0gCjIuMjMuMAoKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KSW50ZWwtZ2Z4IG1haWxpbmcgbGlz dApJbnRlbC1nZnhAbGlzdHMuZnJlZWRlc2t0b3Aub3JnCmh0dHBzOi8vbGlzdHMuZnJlZWRlc2t0 b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4