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=-16.7 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 671FAC63777 for ; Fri, 27 Nov 2020 12:10:02 +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 16BAD21D81 for ; Fri, 27 Nov 2020 12:10:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 16BAD21D81 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 668C36EC69; Fri, 27 Nov 2020 12:09:01 +0000 (UTC) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id 750C76EC4E; Fri, 27 Nov 2020 12:08:50 +0000 (UTC) IronPort-SDR: Y13asHRVOiVHIAMgSQOcpBOPi1f6UiAhzlSsfFQGxOWh8m6PHIiLV0lDDE0z/Mu0YmPd6wf5v+ EKL/UJYWbZ3g== X-IronPort-AV: E=McAfee;i="6000,8403,9817"; a="172540595" X-IronPort-AV: E=Sophos;i="5.78,374,1599548400"; d="scan'208";a="172540595" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Nov 2020 04:08:50 -0800 IronPort-SDR: PSqThH20HN4tAK1lizaIpVxbdTC7SJd6++s6NnYQz/+4z1wg4JYMTqskJgEbvz3Xh6V1W4zyiR v0o/pEpJsd5w== X-IronPort-AV: E=Sophos;i="5.78,374,1599548400"; d="scan'208";a="548028803" 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 04:08:48 -0800 From: Matthew Auld To: intel-gfx@lists.freedesktop.org Subject: [RFC PATCH 046/162] drm/i915: Add ww locking to dma-buf ops. Date: Fri, 27 Nov 2020 12:05:22 +0000 Message-Id: <20201127120718.454037-47-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: dri-devel@lists.freedesktop.org, =?UTF-8?q?Thomas=20Hellstr=C3=B6m?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" RnJvbTogTWFhcnRlbiBMYW5raG9yc3QgPG1hYXJ0ZW4ubGFua2hvcnN0QGxpbnV4LmludGVsLmNv bT4KCnZtYXAgaXMgdXNpbmcgcGluX3BhZ2VzLCBidXQgbmVlZHMgdG8gdXNlIHd3IGxvY2tpbmcs CmFkZCBwaW5fcGFnZXNfdW5sb2NrZWQgdG8gY29ycmVjdGx5IGxvY2sgdGhlIG1hcHBpbmcuCgpB bHNvIGFkZCB3dyBsb2NraW5nIHRvIGJlZ2luL2VuZCBjcHUgYWNjZXNzLgoKU2lnbmVkLW9mZi1i eTogTWFhcnRlbiBMYW5raG9yc3QgPG1hYXJ0ZW4ubGFua2hvcnN0QGxpbnV4LmludGVsLmNvbT4K Q2M6IFRob21hcyBIZWxsc3Ryw7ZtIDx0aG9tYXMuaGVsbHN0cm9tQGxpbnV4LmludGVsLmNvbT4K LS0tCiBkcml2ZXJzL2dwdS9kcm0vaTkxNS9nZW0vaTkxNV9nZW1fZG1hYnVmLmMgfCA2MCArKysr KysrKysrKystLS0tLS0tLS0tCiAxIGZpbGUgY2hhbmdlZCwgMzMgaW5zZXJ0aW9ucygrKSwgMjcg ZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2k5MTUvZ2VtL2k5MTVf Z2VtX2RtYWJ1Zi5jIGIvZHJpdmVycy9ncHUvZHJtL2k5MTUvZ2VtL2k5MTVfZ2VtX2RtYWJ1Zi5j CmluZGV4IDM2ZTNjMjc2NWY0Yy4uYzRiMDFlODE5Nzg2IDEwMDY0NAotLS0gYS9kcml2ZXJzL2dw dS9kcm0vaTkxNS9nZW0vaTkxNV9nZW1fZG1hYnVmLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2k5 MTUvZ2VtL2k5MTVfZ2VtX2RtYWJ1Zi5jCkBAIC04Miw3ICs4Miw3IEBAIHN0YXRpYyBpbnQgaTkx NV9nZW1fZG1hYnVmX3ZtYXAoc3RydWN0IGRtYV9idWYgKmRtYV9idWYsIHN0cnVjdCBkbWFfYnVm X21hcCAqbWFwCiAJc3RydWN0IGRybV9pOTE1X2dlbV9vYmplY3QgKm9iaiA9IGRtYV9idWZfdG9f b2JqKGRtYV9idWYpOwogCXZvaWQgKnZhZGRyOwogCi0JdmFkZHIgPSBpOTE1X2dlbV9vYmplY3Rf cGluX21hcChvYmosIEk5MTVfTUFQX1dCKTsKKwl2YWRkciA9IGk5MTVfZ2VtX29iamVjdF9waW5f bWFwX3VubG9ja2VkKG9iaiwgSTkxNV9NQVBfV0IpOwogCWlmIChJU19FUlIodmFkZHIpKQogCQly ZXR1cm4gUFRSX0VSUih2YWRkcik7CiAKQEAgLTEyMyw0MiArMTIzLDQ4IEBAIHN0YXRpYyBpbnQg aTkxNV9nZW1fYmVnaW5fY3B1X2FjY2VzcyhzdHJ1Y3QgZG1hX2J1ZiAqZG1hX2J1ZiwgZW51bSBk bWFfZGF0YV9kaXJlCiB7CiAJc3RydWN0IGRybV9pOTE1X2dlbV9vYmplY3QgKm9iaiA9IGRtYV9i dWZfdG9fb2JqKGRtYV9idWYpOwogCWJvb2wgd3JpdGUgPSAoZGlyZWN0aW9uID09IERNQV9CSURJ UkVDVElPTkFMIHx8IGRpcmVjdGlvbiA9PSBETUFfVE9fREVWSUNFKTsKKwlzdHJ1Y3QgaTkxNV9n ZW1fd3dfY3R4IHd3OwogCWludCBlcnI7CiAKLQllcnIgPSBpOTE1X2dlbV9vYmplY3RfcGluX3Bh Z2VzKG9iaik7Ci0JaWYgKGVycikKLQkJcmV0dXJuIGVycjsKLQotCWVyciA9IGk5MTVfZ2VtX29i amVjdF9sb2NrX2ludGVycnVwdGlibGUob2JqLCBOVUxMKTsKLQlpZiAoZXJyKQotCQlnb3RvIG91 dDsKLQotCWVyciA9IGk5MTVfZ2VtX29iamVjdF9zZXRfdG9fY3B1X2RvbWFpbihvYmosIHdyaXRl KTsKLQlpOTE1X2dlbV9vYmplY3RfdW5sb2NrKG9iaik7Ci0KLW91dDoKLQlpOTE1X2dlbV9vYmpl Y3RfdW5waW5fcGFnZXMob2JqKTsKKwlpOTE1X2dlbV93d19jdHhfaW5pdCgmd3csIHRydWUpOwor cmV0cnk6CisJZXJyID0gaTkxNV9nZW1fb2JqZWN0X2xvY2sob2JqLCAmd3cpOworCWlmICghZXJy KQorCQllcnIgPSBpOTE1X2dlbV9vYmplY3RfcGluX3BhZ2VzKG9iaik7CisJaWYgKCFlcnIpIHsK KwkJZXJyID0gaTkxNV9nZW1fb2JqZWN0X3NldF90b19jcHVfZG9tYWluKG9iaiwgd3JpdGUpOwor CQlpOTE1X2dlbV9vYmplY3RfdW5waW5fcGFnZXMob2JqKTsKKwl9CisJaWYgKGVyciA9PSAtRURF QURMSykgeworCQllcnIgPSBpOTE1X2dlbV93d19jdHhfYmFja29mZigmd3cpOworCQlpZiAoIWVy cikKKwkJCWdvdG8gcmV0cnk7CisJfQorCWk5MTVfZ2VtX3d3X2N0eF9maW5pKCZ3dyk7CiAJcmV0 dXJuIGVycjsKIH0KIAogc3RhdGljIGludCBpOTE1X2dlbV9lbmRfY3B1X2FjY2VzcyhzdHJ1Y3Qg ZG1hX2J1ZiAqZG1hX2J1ZiwgZW51bSBkbWFfZGF0YV9kaXJlY3Rpb24gZGlyZWN0aW9uKQogewog CXN0cnVjdCBkcm1faTkxNV9nZW1fb2JqZWN0ICpvYmogPSBkbWFfYnVmX3RvX29iaihkbWFfYnVm KTsKKwlzdHJ1Y3QgaTkxNV9nZW1fd3dfY3R4IHd3OwogCWludCBlcnI7CiAKLQllcnIgPSBpOTE1 X2dlbV9vYmplY3RfcGluX3BhZ2VzKG9iaik7Ci0JaWYgKGVycikKLQkJcmV0dXJuIGVycjsKLQot CWVyciA9IGk5MTVfZ2VtX29iamVjdF9sb2NrX2ludGVycnVwdGlibGUob2JqLCBOVUxMKTsKLQlp ZiAoZXJyKQotCQlnb3RvIG91dDsKLQotCWVyciA9IGk5MTVfZ2VtX29iamVjdF9zZXRfdG9fZ3R0 X2RvbWFpbihvYmosIGZhbHNlKTsKLQlpOTE1X2dlbV9vYmplY3RfdW5sb2NrKG9iaik7Ci0KLW91 dDoKLQlpOTE1X2dlbV9vYmplY3RfdW5waW5fcGFnZXMob2JqKTsKKwlpOTE1X2dlbV93d19jdHhf aW5pdCgmd3csIHRydWUpOworcmV0cnk6CisJZXJyID0gaTkxNV9nZW1fb2JqZWN0X2xvY2sob2Jq LCAmd3cpOworCWlmICghZXJyKQorCQllcnIgPSBpOTE1X2dlbV9vYmplY3RfcGluX3BhZ2VzKG9i aik7CisJaWYgKCFlcnIpIHsKKwkJZXJyID0gaTkxNV9nZW1fb2JqZWN0X3NldF90b19ndHRfZG9t YWluKG9iaiwgZmFsc2UpOworCQlpOTE1X2dlbV9vYmplY3RfdW5waW5fcGFnZXMob2JqKTsKKwl9 CisJaWYgKGVyciA9PSAtRURFQURMSykgeworCQllcnIgPSBpOTE1X2dlbV93d19jdHhfYmFja29m Zigmd3cpOworCQlpZiAoIWVycikKKwkJCWdvdG8gcmV0cnk7CisJfQorCWk5MTVfZ2VtX3d3X2N0 eF9maW5pKCZ3dyk7CiAJcmV0dXJuIGVycjsKIH0KIAotLSAKMi4yNi4yCgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpkcmktZGV2ZWwgbWFpbGluZyBsaXN0 CmRyaS1kZXZlbEBsaXN0cy5mcmVlZGVza3RvcC5vcmcKaHR0cHM6Ly9saXN0cy5mcmVlZGVza3Rv cC5vcmcvbWFpbG1hbi9saXN0aW5mby9kcmktZGV2ZWwK