From patchwork Mon Sep 13 13:16:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Christian_K=C3=B6nig?= X-Patchwork-Id: 12489423 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=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 7F1BFC433F5 for ; Mon, 13 Sep 2021 13:52:15 +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 3E5B361BD0 for ; Mon, 13 Sep 2021 13:52:15 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 3E5B361BD0 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id ABF9E6E0CC; Mon, 13 Sep 2021 13:52:14 +0000 (UTC) Received: from mail-wm1-x329.google.com (mail-wm1-x329.google.com [IPv6:2a00:1450:4864:20::329]) by gabe.freedesktop.org (Postfix) with ESMTPS id 7DE756E199; Mon, 13 Sep 2021 13:17:22 +0000 (UTC) Received: by mail-wm1-x329.google.com with SMTP id 196-20020a1c04cd000000b002fa489ffe1fso6947633wme.4; Mon, 13 Sep 2021 06:17:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=TJQg28bFaecRK4P62bX0pUmzGEviWdAsp9Jh6zjSttQ=; b=kn4xgCEQdvO1BCSi0iHQQ0kacxYSTOPUYw3NHrF63wrqhX48b/bf2+P6omFeXtAxyJ GHF8sJWq49Xm6SzdeFQF5k3IpzCVMGzATecR+f2vSJvSnhXBw+lIy0cxtTIzADiJ74HU iukxaG9WYYhBnUolSXkNmKSemXJ6hSK/O0rr8QWVNa6UVIWAZ52TpoaMgTTjS7vVl7Ef t2PQ6aEQhOL6+bY/MO09qioW58af6xvmaUiQlTfGv481dbepotATlIwhMq5H99sxYiAE CGiFq+TL7Df2le4Dto/L+VeNHxjbGrRmoJBP5NwqiX0uI4PFAizIfPGZEIS12XRo34u2 LwDg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=TJQg28bFaecRK4P62bX0pUmzGEviWdAsp9Jh6zjSttQ=; b=DXNGTKAm1K0wAfPJU9WDi8TphxTJIVe07DIZZuxt8bDpQXpjMQbCxJcf57CAkeERMm cbtGlDv+XatmDhoUY8FNirTVYYLx5HB8TunrXbgt5lLnLxyRqaU8NACuCDT7sNSxB+R/ l/dZ8wZ0hLAte5aK+iSl+PNkWWEn9wKxBbqs/VbNZAB71GDATrAY8Kyb3Gz7yjb+86sj an1YPxvcN6zxlBPIBXnaybpVgDZ1bNH4br1jw/dIuy4qMf+xGmVqTmHQDw7ax6EWeWo9 q7eMm+SKxbVntBukfApxCnNjmwUWjXq5pbzCJegU40US0c48BrzM+TIzMLVng/UvM5Db e7nw== X-Gm-Message-State: AOAM533FCzxMTcLJyPb9qrsflQMx3nQ610hzBYSEy8aBqtEuiXumjX9N zedqgrNv+YgYoLf/6kueDzU= X-Google-Smtp-Source: ABdhPJxsF8ekyIhptLBRFZnw0TAc+pj/p8qyebaV0i7XwfKFZ+xEEW11vFlKszAqDIypX26YpaXSJA== X-Received: by 2002:a7b:c191:: with SMTP id y17mr3424889wmi.122.1631539041044; Mon, 13 Sep 2021 06:17:21 -0700 (PDT) Received: from abel.fritz.box (p5b0ea1b5.dip0.t-ipconnect.de. [91.14.161.181]) by smtp.gmail.com with ESMTPSA id h18sm7602834wrb.33.2021.09.13.06.17.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Sep 2021 06:17:20 -0700 (PDT) From: " =?utf-8?q?Christian_K=C3=B6nig?= " X-Google-Original-From: =?utf-8?q?Christian_K=C3=B6nig?= To: linaro-mm-sig@lists.linaro.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org Cc: daniel@ffwll.ch, intel-gfx@lists.freedesktop.org Date: Mon, 13 Sep 2021 15:16:47 +0200 Message-Id: <20210913131707.45639-7-christian.koenig@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210913131707.45639-1-christian.koenig@amd.com> References: <20210913131707.45639-1-christian.koenig@amd.com> MIME-Version: 1.0 X-Mailman-Approved-At: Mon, 13 Sep 2021 13:52:14 +0000 Subject: [Intel-gfx] [PATCH 06/26] dma-buf: use new iterator in dma_resv_test_signaled 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" This makes the function much simpler since the complex retry logic is now handled elsewhere. Signed-off-by: Christian König --- drivers/dma-buf/dma-resv.c | 54 +++++--------------------------------- 1 file changed, 7 insertions(+), 47 deletions(-) diff --git a/drivers/dma-buf/dma-resv.c b/drivers/dma-buf/dma-resv.c index 3ce929b770ea..fefc7ec37029 100644 --- a/drivers/dma-buf/dma-resv.c +++ b/drivers/dma-buf/dma-resv.c @@ -593,22 +593,6 @@ long dma_resv_wait_timeout(struct dma_resv *obj, bool wait_all, bool intr, EXPORT_SYMBOL_GPL(dma_resv_wait_timeout); -static inline int dma_resv_test_signaled_single(struct dma_fence *passed_fence) -{ - struct dma_fence *fence, *lfence = passed_fence; - int ret = 1; - - if (!test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &lfence->flags)) { - fence = dma_fence_get_rcu(lfence); - if (!fence) - return -1; - - ret = !!dma_fence_is_signaled(fence); - dma_fence_put(fence); - } - return ret; -} - /** * dma_resv_test_signaled - Test if a reservation object's fences have been * signaled. @@ -625,43 +609,19 @@ static inline int dma_resv_test_signaled_single(struct dma_fence *passed_fence) */ bool dma_resv_test_signaled(struct dma_resv *obj, bool test_all) { + struct dma_resv_cursor cursor; struct dma_fence *fence; - unsigned int seq; - int ret; rcu_read_lock(); -retry: - ret = true; - seq = read_seqcount_begin(&obj->seq); - - if (test_all) { - struct dma_resv_list *fobj = dma_resv_shared_list(obj); - unsigned int i, shared_count; - - shared_count = fobj ? fobj->shared_count : 0; - for (i = 0; i < shared_count; ++i) { - fence = rcu_dereference(fobj->shared[i]); - ret = dma_resv_test_signaled_single(fence); - if (ret < 0) - goto retry; - else if (!ret) - break; + dma_resv_for_each_fence_unlocked(obj, &cursor, test_all, fence) { + if (!dma_fence_is_signaled(fence)) { + rcu_read_unlock(); + dma_fence_put(fence); + return false; } } - - fence = dma_resv_excl_fence(obj); - if (ret && fence) { - ret = dma_resv_test_signaled_single(fence); - if (ret < 0) - goto retry; - - } - - if (read_seqcount_retry(&obj->seq, seq)) - goto retry; - rcu_read_unlock(); - return ret; + return true; } EXPORT_SYMBOL_GPL(dma_resv_test_signaled);