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=-9.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 030CDC3A59E for ; Wed, 21 Aug 2019 12:32:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C23E1233FC for ; Wed, 21 Aug 2019 12:32:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="d078rngo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728297AbfHUMcG (ORCPT ); Wed, 21 Aug 2019 08:32:06 -0400 Received: from mail-wm1-f65.google.com ([209.85.128.65]:38796 "EHLO mail-wm1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728286AbfHUMcG (ORCPT ); Wed, 21 Aug 2019 08:32:06 -0400 Received: by mail-wm1-f65.google.com with SMTP id m125so1957430wmm.3 for ; Wed, 21 Aug 2019 05:32:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=MZJwoU8EhjpqcfOVk/0UG/4FrwiANEoCi8kk0rWYdbg=; b=d078rngoBxhERwo8VvL6b5SgmaYW+//qijiLogHL72rlIO5Pm8L7LSMSx6GyJmF65k C8q7M9/DvhYezkDiP+SWBJ8RFefSWz2sID92nlUbQbr0g/tIbvWM85tcR4tJRHRj0z+P G8/B2D8rkSeYsaVSE6eN1CDNN/EKJBfbXT157FpigZPLtXKpJSTh8lXKfpk0due1MkVA Sb0OvgvGbCbxryZ7/dOHetHUfO1thPixmEfzgrWwYthNgNbG1A6uUPVdDOI9HhK7UNHU 7aGrHm+4UTnRPa/iyfBS5TNBpPntvDoY1kO3T7ligHPmU54CgUdbZ2LygxEEpcpDlpiz VYvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=MZJwoU8EhjpqcfOVk/0UG/4FrwiANEoCi8kk0rWYdbg=; b=BTd2pmzwwKYplq+Pr7QJd6U+P89TCqE898dLmhi4cCSFq2g+bSEP4l0gnnmcjqd15o 5lDlatMMYtp93MwUp6HiMq34rS/qp9jhaokvjXv04xTh155D4POe+GP5j6zm+RB+yzKM B5Bm6k35HWl0tOKxkk3HQ1nTr3Wje7iaKw3sxN+PpkYAgBBnFkFzgFkxBs0M85W2R8Wi qRn6sR2SChBnCBYaGp4ddIdUBPhLympuZDxBaReaM0jeC/xpjj7GJ6gOsUYrZP/B38iD vsNZN4tUfCkVEs24xcd/v2VoBCmAgVPqg8IwSzIs68gZHn7aSMDWNOBpXHy5lnbx59sP 5/yQ== X-Gm-Message-State: APjAAAV6MAQmt2jEM8epRK73SD1isVJB4XAXex6wSeWIqSFJzQUFBxOB DDcaDVZU+7p1x3lHAhseJ/0= X-Google-Smtp-Source: APXvYqwZ8Gd/KOK6OMmUJsHhzoQ82fdVwJdWeRR2KTsdPwyQ4ORWAL/wvp+i3s7QDG9IRFkvzuVI5Q== X-Received: by 2002:a1c:6a0b:: with SMTP id f11mr5415866wmc.87.1566390723528; Wed, 21 Aug 2019 05:32:03 -0700 (PDT) Received: from abel.fritz.box ([2a02:908:1252:fb60:8189:dd33:a934:c4fa]) by smtp.gmail.com with ESMTPSA id v3sm23084571wrq.34.2019.08.21.05.32.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 21 Aug 2019 05:32:00 -0700 (PDT) From: "=?UTF-8?q?Christian=20K=C3=B6nig?=" X-Google-Original-From: =?UTF-8?q?Christian=20K=C3=B6nig?= To: dri-devel@lists.freedesktop.org, chris@chris-wilson.co.uk, daniel.vetter@ffwll.ch, sumit.semwal@linaro.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org Subject: [PATCH 10/10] dma-buf/resv: add other operations Date: Wed, 21 Aug 2019 14:31:47 +0200 Message-Id: <20190821123147.110736-11-christian.koenig@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190821123147.110736-1-christian.koenig@amd.com> References: <20190821123147.110736-1-christian.koenig@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Additional to readers and writers add another class of operations which never participate in implicit synchronization. Signed-off-by: Christian König --- drivers/dma-buf/dma-resv.c | 27 ++++++++++++++++++++++++--- include/linux/dma-resv.h | 2 ++ 2 files changed, 26 insertions(+), 3 deletions(-) diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index 8ef7dbc7fd8e..c6dd6c36dba2 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -280,6 +280,7 @@ void dma_resv_init(struct dma_resv *obj) dma_resv_fences_init(&obj->writers); dma_resv_fences_init(&obj->readers); + dma_resv_fences_init(&obj->others); } EXPORT_SYMBOL(dma_resv_init); @@ -295,6 +296,7 @@ void dma_resv_fini(struct dma_resv *obj) */ dma_resv_fences_fini(&obj->writers); dma_resv_fences_fini(&obj->readers); + dma_resv_fences_fini(&obj->others); ww_mutex_destroy(&obj->lock); } EXPORT_SYMBOL(dma_resv_fini); @@ -334,6 +336,10 @@ void dma_resv_prune_fences(struct dma_resv *obj) fence = dma_resv_fences_deref(obj, &obj->readers); if (dma_fence_is_signaled(fence)) dma_resv_fences_set(obj, &obj->readers, NULL); + + fence = dma_resv_fences_deref(obj, &obj->others); + if (dma_fence_is_signaled(fence)) + dma_resv_fences_set(obj, &obj->others, NULL); } EXPORT_SYMBOL(dma_resv_prune_fences); @@ -346,17 +352,19 @@ EXPORT_SYMBOL(dma_resv_prune_fences); */ int dma_resv_copy_fences(struct dma_resv *dst, struct dma_resv *src) { - struct dma_fence *writers, *readers; + struct dma_fence *writers, *readers, *others; dma_resv_assert_held(dst); rcu_read_lock(); writers = dma_resv_fences_get_rcu(&src->writers); readers = dma_resv_fences_get_rcu(&src->readers); + others = dma_resv_fences_get_rcu(&src->others); rcu_read_unlock(); dma_resv_fences_set(dst, &dst->writers, writers); dma_resv_fences_set(dst, &dst->readers, readers); + dma_resv_fences_set(dst, &dst->readers, others); return 0; } @@ -440,12 +448,13 @@ long dma_resv_wait_timeout_rcu(struct dma_resv *obj, bool wait_all, bool intr, unsigned long timeout) { - struct dma_fence *writers, *readers; + struct dma_fence *writers, *readers, *others; long ret = timeout ? timeout : 1; rcu_read_lock(); writers = dma_resv_fences_get_rcu(&obj->writers); readers = dma_resv_fences_get_rcu(&obj->readers); + others = dma_resv_fences_get_rcu(&obj->others); rcu_read_unlock(); if (wait_all && readers) { @@ -454,12 +463,19 @@ long dma_resv_wait_timeout_rcu(struct dma_resv *obj, goto out; } + if (wait_all && others) { + ret = dma_fence_wait_timeout(others, intr, ret); + if (ret <= 0) + goto out; + } + if (writers) ret = dma_fence_wait_timeout(writers, intr, ret); out: dma_fence_put(writers); dma_fence_put(readers); + dma_fence_put(others); return ret; } EXPORT_SYMBOL_GPL(dma_resv_wait_timeout_rcu); @@ -476,12 +492,13 @@ EXPORT_SYMBOL_GPL(dma_resv_wait_timeout_rcu); */ bool dma_resv_test_signaled_rcu(struct dma_resv *obj, bool test_all) { - struct dma_fence *writers, *readers; + struct dma_fence *writers, *readers, *others; bool ret = true; rcu_read_lock(); writers = dma_resv_fences_get_rcu(&obj->writers); readers = dma_resv_fences_get_rcu(&obj->readers); + others = dma_resv_fences_get_rcu(&obj->others); rcu_read_unlock(); if (writers) @@ -490,8 +507,12 @@ bool dma_resv_test_signaled_rcu(struct dma_resv *obj, bool test_all) if (test_all && readers) ret &= dma_fence_is_signaled(readers); + if (test_all && others) + ret &= dma_fence_is_signaled(others); + dma_fence_put(writers); dma_fence_put(readers); + dma_fence_put(others); return ret; } diff --git a/include/linux/dma-resv.h b/include/linux/dma-resv.h index 72c3c4f99711..bf8d21cc7720 100644 --- a/include/linux/dma-resv.h +++ b/include/linux/dma-resv.h @@ -76,12 +76,14 @@ void dma_resv_fences_commit(struct dma_resv *obj, * @seq: sequence count for managing RCU read-side synchronization * @writers: array of write operations for implicit sync * @readers: array of read operations for implicit sync + * @others: other operations not participating in implicit sync */ struct dma_resv { struct ww_mutex lock; struct dma_resv_fences writers; struct dma_resv_fences readers; + struct dma_resv_fences others; }; #define dma_resv_held(obj) lockdep_is_held(&(obj)->lock.base) -- 2.17.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: "=?UTF-8?q?Christian=20K=C3=B6nig?=" Subject: [PATCH 10/10] dma-buf/resv: add other operations Date: Wed, 21 Aug 2019 14:31:47 +0200 Message-ID: <20190821123147.110736-11-christian.koenig@amd.com> References: <20190821123147.110736-1-christian.koenig@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail-wm1-x342.google.com (mail-wm1-x342.google.com [IPv6:2a00:1450:4864:20::342]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2889B6E316 for ; Wed, 21 Aug 2019 12:32:05 +0000 (UTC) Received: by mail-wm1-x342.google.com with SMTP id l2so1976175wmg.0 for ; Wed, 21 Aug 2019 05:32:05 -0700 (PDT) In-Reply-To: <20190821123147.110736-1-christian.koenig@amd.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org, chris@chris-wilson.co.uk, daniel.vetter@ffwll.ch, sumit.semwal@linaro.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org List-Id: dri-devel@lists.freedesktop.org QWRkaXRpb25hbCB0byByZWFkZXJzIGFuZCB3cml0ZXJzIGFkZCBhbm90aGVyIGNsYXNzIG9mIG9w ZXJhdGlvbnMKd2hpY2ggbmV2ZXIgcGFydGljaXBhdGUgaW4gaW1wbGljaXQgc3luY2hyb25pemF0 aW9uLgoKU2lnbmVkLW9mZi1ieTogQ2hyaXN0aWFuIEvDtm5pZyA8Y2hyaXN0aWFuLmtvZW5pZ0Bh bWQuY29tPgotLS0KIGRyaXZlcnMvZG1hLWJ1Zi9kbWEtcmVzdi5jIHwgMjcgKysrKysrKysrKysr KysrKysrKysrKysrLS0tCiBpbmNsdWRlL2xpbnV4L2RtYS1yZXN2LmggICB8ICAyICsrCiAyIGZp bGVzIGNoYW5nZWQsIDI2IGluc2VydGlvbnMoKyksIDMgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0 IGEvZHJpdmVycy9kbWEtYnVmL2RtYS1yZXN2LmMgYi9kcml2ZXJzL2RtYS1idWYvZG1hLXJlc3Yu YwppbmRleCA4ZWY3ZGJjN2ZkOGUuLmM2ZGQ2YzM2ZGJhMiAxMDA2NDQKLS0tIGEvZHJpdmVycy9k bWEtYnVmL2RtYS1yZXN2LmMKKysrIGIvZHJpdmVycy9kbWEtYnVmL2RtYS1yZXN2LmMKQEAgLTI4 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