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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 2707CC47088 for ; Tue, 25 May 2021 21:18:18 +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 DC38F6142D for ; Tue, 25 May 2021 21:18:17 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC38F6142D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=jlekstrand.net 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 9CFFA6EB4D; Tue, 25 May 2021 21:18:07 +0000 (UTC) Received: from mail-pf1-x431.google.com (mail-pf1-x431.google.com [IPv6:2607:f8b0:4864:20::431]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4F0796EB46 for ; Tue, 25 May 2021 21:18:02 +0000 (UTC) Received: by mail-pf1-x431.google.com with SMTP id d16so24585570pfn.12 for ; Tue, 25 May 2021 14:18:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=jlekstrand-net.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=bfEYaaEsri34UVrh87VwS0D4/LmhE0dmCO8raqQLSuw=; b=sIWRMHVcSTGqlQ8A5aUaxSGn7Cp2nYjSQ9mVEnOuUCBxi09XAYbFh7rqdSuQEiLYPI 8naTIn9vr1+6YFglNQWZFdoWXstVKQR8tcTiCeeqXTvzmYMA1S2iAOW2x4t1a6TZTEYk bTuwnhJYGq4uBWbOJl2rewnDFbA4rrl5/M3tmrZ+hPEAIaLZn6XX3ZYeZsB8JcLiECyH 6BITRi09v3/vVL0lchWxnAD5JL5wOEO3x+e3xTDbR3cf9oIgGqSVBv8eNEecwuUMusHH Sqff4lbScgzlD+PNq2/H5n2NHk3wwTi4NsRt7eTwAC5lJPvg1gn2ltfVaJItvlDpk1XK jFvg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=bfEYaaEsri34UVrh87VwS0D4/LmhE0dmCO8raqQLSuw=; b=K180GX7m13Yc6aXUwd1W6eO0UUIMRvPmdj+7DY1caaBYsnXnvfSUBpaHPdl0xli2C6 ickwd7dPA3TbmLWCZCAxbG3p3M0wg/DncMn65infPIsStgKWY8OUHOdDa7pj9wmiHvij ztbZHdpiPQGwLuZYjI1qvNSPyk+dFzaPnl+5rX48GUoOExentvRhlw7Nw1Ce+KCRZRKv Zbq8UhrzpiQ8xTwRMbHXxwMXRd6ZizGzhFZIsDJZZT0cyhdwIcYaqkEPuT00hgE92EIR 8xjcdgT2s2fyUegNntR2nWtza9p8NIn3COvv3wxTBUYJ95xhEtUHvGm6WlHQ+wR8SS2I qoMQ== X-Gm-Message-State: AOAM5319KWh8iAFhq3Ob3fXtDGf9Mf6wzOOVn6J6dJoWhCultdldSDQw w6k8PO1fi3DcsnUIM5D90uP9UBMd/OSelw== X-Google-Smtp-Source: ABdhPJxhkdOiX/X3Zg+JCtwbbjuCzzEVQK0zBHufXro4yy8UMrPBITNg9CYq+RtXhLOwgW07SfGvzg== X-Received: by 2002:a63:4287:: with SMTP id p129mr21351106pga.230.1621977481615; Tue, 25 May 2021 14:18:01 -0700 (PDT) Received: from omlet.lan ([134.134.139.83]) by smtp.gmail.com with ESMTPSA id e186sm14342278pfa.145.2021.05.25.14.17.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 May 2021 14:18:01 -0700 (PDT) From: Jason Ekstrand To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Subject: [PATCH 1/7] dma-buf: Add dma_fence_array_for_each (v2) Date: Tue, 25 May 2021 16:17:47 -0500 Message-Id: <20210525211753.1086069-2-jason@jlekstrand.net> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210525211753.1086069-1-jason@jlekstrand.net> References: <20210525211753.1086069-1-jason@jlekstrand.net> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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?Christian=20K=C3=B6nig?= , =?UTF-8?q?Christian=20K=C3=B6nig?= , Jason Ekstrand , Daniel Vetter Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Christian König Add a helper to iterate over all fences in a dma_fence_array object. v2 (Jason Ekstrand) - Return NULL from dma_fence_array_first if head == NULL. This matches the iterator behavior of dma_fence_chain_for_each in that it iterates zero times if head == NULL. - Return NULL from dma_fence_array_next if index > array->num_fences. Signed-off-by: Jason Ekstrand Reviewed-by: Jason Ekstrand Reviewed-by: Christian König Cc: Daniel Vetter Cc: Maarten Lankhorst --- drivers/dma-buf/dma-fence-array.c | 27 +++++++++++++++++++++++++++ include/linux/dma-fence-array.h | 17 +++++++++++++++++ 2 files changed, 44 insertions(+) diff --git a/drivers/dma-buf/dma-fence-array.c b/drivers/dma-buf/dma-fence-array.c index d3fbd950be944..2ac1afc697d0f 100644 --- a/drivers/dma-buf/dma-fence-array.c +++ b/drivers/dma-buf/dma-fence-array.c @@ -201,3 +201,30 @@ bool dma_fence_match_context(struct dma_fence *fence, u64 context) return true; } EXPORT_SYMBOL(dma_fence_match_context); + +struct dma_fence *dma_fence_array_first(struct dma_fence *head) +{ + struct dma_fence_array *array; + + if (!head) + return NULL; + + array = to_dma_fence_array(head); + if (!array) + return head; + + return array->fences[0]; +} +EXPORT_SYMBOL(dma_fence_array_first); + +struct dma_fence *dma_fence_array_next(struct dma_fence *head, + unsigned int index) +{ + struct dma_fence_array *array = to_dma_fence_array(head); + + if (!array || index >= array->num_fences) + return NULL; + + return array->fences[index]; +} +EXPORT_SYMBOL(dma_fence_array_next); diff --git a/include/linux/dma-fence-array.h b/include/linux/dma-fence-array.h index 303dd712220fd..588ac8089dd61 100644 --- a/include/linux/dma-fence-array.h +++ b/include/linux/dma-fence-array.h @@ -74,6 +74,19 @@ to_dma_fence_array(struct dma_fence *fence) return container_of(fence, struct dma_fence_array, base); } +/** + * dma_fence_array_for_each - iterate over all fences in array + * @fence: current fence + * @index: index into the array + * @head: potential dma_fence_array object + * + * Test if @array is a dma_fence_array object and if yes iterate over all fences + * in the array. If not just iterate over the fence in @array itself. + */ +#define dma_fence_array_for_each(fence, index, head) \ + for (index = 0, fence = dma_fence_array_first(head); fence; \ + ++(index), fence = dma_fence_array_next(head, index)) + struct dma_fence_array *dma_fence_array_create(int num_fences, struct dma_fence **fences, u64 context, unsigned seqno, @@ -81,4 +94,8 @@ struct dma_fence_array *dma_fence_array_create(int num_fences, bool dma_fence_match_context(struct dma_fence *fence, u64 context); +struct dma_fence *dma_fence_array_first(struct dma_fence *head); +struct dma_fence *dma_fence_array_next(struct dma_fence *head, + unsigned int index); + #endif /* __LINUX_DMA_FENCE_ARRAY_H */ -- 2.31.1 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,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 90639C47086 for ; 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Tue, 25 May 2021 14:18:01 -0700 (PDT) Received: from omlet.lan ([134.134.139.83]) by smtp.gmail.com with ESMTPSA id e186sm14342278pfa.145.2021.05.25.14.17.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 May 2021 14:18:01 -0700 (PDT) From: Jason Ekstrand To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Date: Tue, 25 May 2021 16:17:47 -0500 Message-Id: <20210525211753.1086069-2-jason@jlekstrand.net> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210525211753.1086069-1-jason@jlekstrand.net> References: <20210525211753.1086069-1-jason@jlekstrand.net> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 1/7] dma-buf: Add dma_fence_array_for_each (v2) 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: , Cc: =?UTF-8?q?Christian=20K=C3=B6nig?= , =?UTF-8?q?Christian=20K=C3=B6nig?= , Daniel Vetter Content-Type: text/plain; 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