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=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 AA0C2C433EF for ; Thu, 16 Sep 2021 11:31:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 976F461371 for ; Thu, 16 Sep 2021 11:31:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238187AbhIPLcX (ORCPT ); Thu, 16 Sep 2021 07:32:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34594 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238191AbhIPLcV (ORCPT ); Thu, 16 Sep 2021 07:32:21 -0400 Received: from mail-wr1-x436.google.com (mail-wr1-x436.google.com [IPv6:2a00:1450:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A5C75C061574 for ; Thu, 16 Sep 2021 04:31:00 -0700 (PDT) Received: by mail-wr1-x436.google.com with SMTP id i23so8959313wrb.2 for ; Thu, 16 Sep 2021 04:31:00 -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=YnWvdXxqHgtmxN+angscxrScd7gs7Wadba51xLqnh8c=; b=ZbIjs3A0ol2lDS+YQJ63Dd6wEcgQGUklh2TgGcGARe6MZLf5E3BJL1Q1XNo7+gzHUw 6G7qBU2xqjfJK6Y7IC+zG8J9Hla2MW/dphAfH+pfaiFf8qF/QNp9kQ2vvzmoIUAEnbm1 B6kH4ea11pDHrKNScs0IN4e3UuYt9PR1vPJ1KlNCxugZMcaUF7Com2VhSQ/t169aCrHO JZzpqTRTQ8r9CorhtLTvInAE7OIW1ofe+ncZXHsDlhDeEAEKDDl8E3INeIVUdPQo0GqQ 3QekC9peTt2XK++WLl98bZndQMKKaWIAAtJs/vspe/yWK6CKNZ4n4hQ6Iqs3BIRX1LWn 3z8g== 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=YnWvdXxqHgtmxN+angscxrScd7gs7Wadba51xLqnh8c=; b=TXlld1UDrAJPz/Oj1jitI+z0W6hQEvFYYrYcJrwFcBvjg+FRJdedYBcp5+Esg+UCus 4hNBAtOc3AFqUKKDT9q99LxgqS7WOJiLV7sjVaZQxbkdR1rfQ2om5X8mwYMip9AAdGtU fx9wxV7UrKw+LD4GWjDphERA1m+BZhM4jrABrKjXIkIsKjyyuWsShg6eR5rFmdF5mgLr qunDktYKkBLPbds+5tfTTuU6FLtBd8iRWhaKKWoo03gnB0KDwMctwFlDHX/VjJbmVTyq vBICztun+umkKg9pSimwPpd4ffshOqfE1ZFNxeAaGPcusy4nq158tWGSiW9uhmWdAwcg Bo0A== X-Gm-Message-State: AOAM530CAs9Vi5ZIJ4F7c54V0V/n231461WPoLu5nJ0bjXIZamKok253 LDNrZ4cBzkZBWWLv9gpKJ1o= X-Google-Smtp-Source: ABdhPJw7Pw8Jd6budWz34hzE3bfaQgHcni7ZD1vc1X0EsnbfmW213d/RBb7GiMDjO5iklVt7hu2yvA== X-Received: by 2002:adf:f1c4:: with SMTP id z4mr5509070wro.418.1631791859320; Thu, 16 Sep 2021 04:30:59 -0700 (PDT) Received: from abel.fritz.box (p5b0ea1b5.dip0.t-ipconnect.de. [91.14.161.181]) by smtp.gmail.com with ESMTPSA id c17sm3803674wrn.54.2021.09.16.04.30.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Sep 2021 04:30:59 -0700 (PDT) From: "=?UTF-8?q?Christian=20K=C3=B6nig?=" X-Google-Original-From: =?UTF-8?q?Christian=20K=C3=B6nig?= To: linaro-mm-sig@lists.linaro.org, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org, intel-gfx@lists.freedesktop.org Cc: daniel@ffwll.ch, tvrtko.ursulin@linux.intel.com Subject: [PATCH 15/26] drm/i915: use the new iterator in i915_request_await_object v2 Date: Thu, 16 Sep 2021 13:30:31 +0200 Message-Id: <20210916113042.3631-16-christian.koenig@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210916113042.3631-1-christian.koenig@amd.com> References: <20210916113042.3631-1-christian.koenig@amd.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Simplifying the code a bit. v2: add missing rcu_read_lock()/rcu_read_unlock() Signed-off-by: Christian König --- drivers/gpu/drm/i915/i915_request.c | 40 ++++++++--------------------- 1 file changed, 11 insertions(+), 29 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c index ce446716d092..221df2edcf02 100644 --- a/drivers/gpu/drm/i915/i915_request.c +++ b/drivers/gpu/drm/i915/i915_request.c @@ -1509,39 +1509,21 @@ i915_request_await_object(struct i915_request *to, struct drm_i915_gem_object *obj, bool write) { - struct dma_fence *excl; + struct dma_resv_iter cursor; + struct dma_fence *fence; int ret = 0; - if (write) { - struct dma_fence **shared; - unsigned int count, i; - - ret = dma_resv_get_fences(obj->base.resv, &excl, &count, - &shared); - if (ret) - return ret; - - for (i = 0; i < count; i++) { - ret = i915_request_await_dma_fence(to, shared[i]); - if (ret) - break; - - dma_fence_put(shared[i]); + rcu_read_lock(); + dma_resv_for_each_fence_unlocked(obj->base.resv, &cursor, write, fence) { + rcu_read_unlock(); + ret = i915_request_await_dma_fence(to, fence); + rcu_read_lock(); + if (ret) { + dma_fence_put(fence); + break; } - - for (; i < count; i++) - dma_fence_put(shared[i]); - kfree(shared); - } else { - excl = dma_resv_get_excl_unlocked(obj->base.resv); - } - - if (excl) { - if (ret == 0) - ret = i915_request_await_dma_fence(to, excl); - - dma_fence_put(excl); } + rcu_read_unlock(); return ret; } -- 2.25.1