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=-13.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 C8FEFC64E75 for ; Fri, 27 Nov 2020 12:15:03 +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 88976208D5 for ; Fri, 27 Nov 2020 12:15:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 88976208D5 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AD50F6ECAE; Fri, 27 Nov 2020 12:12:38 +0000 (UTC) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 02E566ED99; Fri, 27 Nov 2020 12:12:25 +0000 (UTC) IronPort-SDR: DuzcFp8k7GM9jVQjeO02Ta2yYk1FMdbUVPrt18fy3Ko+KyYfJMrtaOUppjqKQn5cPNRZL2KUTl EDZnaRSReUJQ== X-IronPort-AV: E=McAfee;i="6000,8403,9817"; a="168883877" X-IronPort-AV: E=Sophos;i="5.78,374,1599548400"; d="scan'208";a="168883877" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Nov 2020 04:12:25 -0800 IronPort-SDR: QkKIiaPbz6hTJPFRQRPjnpvhk7d7TBBTsSnIQYWct0jX0lQwJHwxn4pI4FIzNIOvGck0aZUteJ 37iGZRTFmBow== X-IronPort-AV: E=Sophos;i="5.78,374,1599548400"; d="scan'208";a="548030052" Received: from mjgleeso-mobl.ger.corp.intel.com (HELO mwauld-desk1.ger.corp.intel.com) ([10.251.85.2]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Nov 2020 04:12:24 -0800 From: Matthew Auld To: intel-gfx@lists.freedesktop.org Subject: [RFC PATCH 155/162] drm/i915: Use a ww transaction in the fault handler Date: Fri, 27 Nov 2020 12:07:11 +0000 Message-Id: <20201127120718.454037-156-matthew.auld@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201127120718.454037-1-matthew.auld@intel.com> References: <20201127120718.454037-1-matthew.auld@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= , dri-devel@lists.freedesktop.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" RnJvbTogVGhvbWFzIEhlbGxzdHLDtm0gPHRob21hcy5oZWxsc3Ryb21AaW50ZWwuY29tPgoKUHJl ZmVyIGEgd3cgdHJhbnNhY3Rpb24gcmF0aGVyIHRoYW4gYSBzaW5nbGUgb2JqZWN0IGxvY2sgdG8K ZW5hYmxlIHNsZWVwaW5nIGxvY2sgZXZpY3Rpb24gaWYgcmVhY2hlZCBieSB0aGUgZmF1bHQKaGFu ZGxlci4KClNpZ25lZC1vZmYtYnk6IFRob21hcyBIZWxsc3Ryw7ZtIDx0aG9tYXMuaGVsbHN0cm9t QGludGVsLmNvbT4KQ2M6IE1hdHRoZXcgQXVsZCA8bWF0dGhldy5hdWxkQGludGVsLmNvbT4KLS0t CiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9nZW0vaTkxNV9nZW1fbW1hbi5jIHwgNDUgKysrKysrKysr KysrKy0tLS0tLS0tLS0tCiAxIGZpbGUgY2hhbmdlZCwgMjQgaW5zZXJ0aW9ucygrKSwgMjEgZGVs ZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvZ2VtL2k5MTVfZ2Vt X21tYW4uYyBiL2RyaXZlcnMvZ3B1L2RybS9pOTE1L2dlbS9pOTE1X2dlbV9tbWFuLmMKaW5kZXgg MzNjY2Q0ZDY2NWQ0Li5hOTUyNmNjMzA5ZDMgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9p OTE1L2dlbS9pOTE1X2dlbV9tbWFuLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZ2VtL2k5 MTVfZ2VtX21tYW4uYwpAQCAtMjM4LDYgKzIzOCw3IEBAIHN0YXRpYyB2bV9mYXVsdF90IHZtX2Zh dWx0X2NwdShzdHJ1Y3Qgdm1fZmF1bHQgKnZtZikKIAlzdHJ1Y3Qgdm1fYXJlYV9zdHJ1Y3QgKmFy ZWEgPSB2bWYtPnZtYTsKIAlzdHJ1Y3QgaTkxNV9tbWFwX29mZnNldCAqbW1vID0gYXJlYS0+dm1f cHJpdmF0ZV9kYXRhOwogCXN0cnVjdCBkcm1faTkxNV9nZW1fb2JqZWN0ICpvYmogPSBtbW8tPm9i ajsKKwlzdHJ1Y3QgaTkxNV9nZW1fd3dfY3R4IHd3OwogCXJlc291cmNlX3NpemVfdCBpb21hcDsK IAlpbnQgZXJyOwogCkBAIC0yNDYsMzMgKzI0NywzNSBAQCBzdGF0aWMgdm1fZmF1bHRfdCB2bV9m YXVsdF9jcHUoc3RydWN0IHZtX2ZhdWx0ICp2bWYpCiAJCSAgICAgYXJlYS0+dm1fZmxhZ3MgJiBW TV9XUklURSkpCiAJCXJldHVybiBWTV9GQVVMVF9TSUdCVVM7CiAKLQlpZiAoaTkxNV9nZW1fb2Jq ZWN0X2xvY2tfaW50ZXJydXB0aWJsZShvYmosIE5VTEwpKQotCQlyZXR1cm4gVk1fRkFVTFRfTk9Q QUdFOworCWZvcl9pOTE1X2dlbV93dygmd3csIGVyciwgdHJ1ZSkgeworCQllcnIgPSBpOTE1X2dl bV9vYmplY3RfbG9jayhvYmosICZ3dyk7CisJCWlmIChlcnIpCisJCQljb250aW51ZTsKIAotCWVy ciA9IGk5MTVfZ2VtX29iamVjdF9waW5fcGFnZXMob2JqKTsKLQlpZiAoZXJyKQotCQlnb3RvIG91 dDsKKwkJZXJyID0gaTkxNV9nZW1fb2JqZWN0X3Bpbl9wYWdlcyhvYmopOworCQlpZiAoZXJyKQor CQkJY29udGludWU7CiAKLQlpb21hcCA9IC0xOwotCWlmICghaTkxNV9nZW1fb2JqZWN0X2hhc19z dHJ1Y3RfcGFnZShvYmopKSB7Ci0JCWlvbWFwID0gb2JqLT5tbS5yZWdpb24tPmlvbWFwLmJhc2U7 Ci0JCWlvbWFwIC09IG9iai0+bW0ucmVnaW9uLT5yZWdpb24uc3RhcnQ7Ci0JfQorCQlpb21hcCA9 IC0xOworCQlpZiAoIWk5MTVfZ2VtX29iamVjdF9oYXNfc3RydWN0X3BhZ2Uob2JqKSkgeworCQkJ aW9tYXAgPSBvYmotPm1tLnJlZ2lvbi0+aW9tYXAuYmFzZTsKKwkJCWlvbWFwIC09IG9iai0+bW0u cmVnaW9uLT5yZWdpb24uc3RhcnQ7CisJCX0KIAotCS8qIFBURXMgYXJlIHJldm9rZWQgaW4gb2Jq LT5vcHMtPnB1dF9wYWdlcygpICovCi0JZXJyID0gcmVtYXBfaW9fc2coYXJlYSwKLQkJCSAgYXJl YS0+dm1fc3RhcnQsIGFyZWEtPnZtX2VuZCAtIGFyZWEtPnZtX3N0YXJ0LAotCQkJICBvYmotPm1t LnBhZ2VzLT5zZ2wsIGlvbWFwKTsKKwkJLyogUFRFcyBhcmUgcmV2b2tlZCBpbiBvYmotPm9wcy0+ cHV0X3BhZ2VzKCkgKi8KKwkJZXJyID0gcmVtYXBfaW9fc2coYXJlYSwKKwkJCQkgIGFyZWEtPnZt X3N0YXJ0LCBhcmVhLT52bV9lbmQgLSBhcmVhLT52bV9zdGFydCwKKwkJCQkgIG9iai0+bW0ucGFn ZXMtPnNnbCwgaW9tYXApOwogCi0JaWYgKGFyZWEtPnZtX2ZsYWdzICYgVk1fV1JJVEUpIHsKLQkJ R0VNX0JVR19PTighaTkxNV9nZW1fb2JqZWN0X2hhc19waW5uZWRfcGFnZXMob2JqKSk7Ci0JCW9i ai0+bW0uZGlydHkgPSB0cnVlOwotCX0KKwkJaWYgKGFyZWEtPnZtX2ZsYWdzICYgVk1fV1JJVEUp IHsKKwkJCUdFTV9CVUdfT04oIWk5MTVfZ2VtX29iamVjdF9oYXNfcGlubmVkX3BhZ2VzKG9iaikp OworCQkJb2JqLT5tbS5kaXJ0eSA9IHRydWU7CisJCX0KIAotCWk5MTVfZ2VtX29iamVjdF91bnBp bl9wYWdlcyhvYmopOworCQlpOTE1X2dlbV9vYmplY3RfdW5waW5fcGFnZXMob2JqKTsKKwkJLyog SW1wbGljaXQgdW5sb2NrICovCisJfQogCi1vdXQ6Ci0JaTkxNV9nZW1fb2JqZWN0X3VubG9jayhv YmopOwogCXJldHVybiBpOTE1X2Vycm9yX3RvX3ZtZl9mYXVsdChlcnIpOwogfQogCi0tIAoyLjI2 LjIKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1k ZXZlbCBtYWlsaW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczov L2xpc3RzLmZyZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbAo=