From patchwork Tue Feb 9 19:48:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: John Stultz X-Patchwork-Id: 12079063 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 637A0C433DB for ; Tue, 9 Feb 2021 20:00:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1398464EC8 for ; Tue, 9 Feb 2021 20:00:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233395AbhBIT7F (ORCPT ); Tue, 9 Feb 2021 14:59:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54032 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233622AbhBITtK (ORCPT ); Tue, 9 Feb 2021 14:49:10 -0500 Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87E92C061A29 for ; Tue, 9 Feb 2021 11:48:25 -0800 (PST) Received: by mail-pj1-x1030.google.com with SMTP id q72so2166854pjq.2 for ; Tue, 09 Feb 2021 11:48:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=afF2pHGG502t/84V5YNHmCiVWiQMRNdlEkUy2NZuKx8=; b=yRaJ+PJ+E44+mqB5LJcQUiR6volXPqvWk7B54rrcPwNuggp7DXthL43qFxwiJaIthR HStcVglg8xIqrW9BKyqY4zPS+KQ0Ooh89+0ENhwQP/mK/2f/dJkzbd0fjdZhCmnkeTXo zrtDpP/gAUVndHlTx7IIiuhwXwmlOFXBS7Bp/wO0+I2Qwc/ntb7r3kP5blH+FynCJPxW v/M0ClZzR6U0x6nA2IolnjcozeqdJh+39gOMTpMFIaVj+ga+r7/IJCccxiPETvn5thso CvDoN0CfebHTczcBATJwgu0i8jhadc+FJUgjcdcpw6+/P9dFdvZFH4xBDmtKhcs++J9/ i/Sg== 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:mime-version :content-transfer-encoding; bh=afF2pHGG502t/84V5YNHmCiVWiQMRNdlEkUy2NZuKx8=; b=LIdodNRXeou9y5rlU+SHW6sHCvcyPar5LZCiItG2ioVi8uyInp7mDyyqO8v65xisQc IWLBHRzGFifGxW6vk6Q/rDgWbn+oBeH/G5Bxr/ibQV5e2pVwVmREaiJ0KxASD9ek+q1h PwIohC/aIp9BCtu07UVfu7zxm8L+aXBbvM2hVa/yQ4Qkr0loGRVara7J9BrvARC7Ow9D dUfMyAG6HV7eVSqRNpRlbrNhE5Rs6RwL5K+izg1BglL39gaN4SLlS5TGRKoXqSfwrhTo U4UJ2NzXuoLtRxsD3e/IURU7bRiO8Odhh8/2FbfB/HJ6Upr/RsIqcvuu2IVa/P7HlQbV 1IJQ== X-Gm-Message-State: AOAM5307t97X49nrrQJw0b+v6a0x3W1DKzHXD38pyfQhiDO79G2PfEhK 16cRDzVLzv4L9KEYOH+2kwnrCA== X-Google-Smtp-Source: ABdhPJykD/cVLPq3p06Nm/JMKvPVGXYlG9cVWzIEFPq4tJeqUZX+9Dn/vzf27apxe3n4hL48CaR0Sw== X-Received: by 2002:a17:90a:4588:: with SMTP id v8mr5562008pjg.58.1612900105090; Tue, 09 Feb 2021 11:48:25 -0800 (PST) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id j17sm22365836pfh.183.2021.02.09.11.48.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Feb 2021 11:48:24 -0800 (PST) From: John Stultz To: lkml Cc: John Stultz , Daniel Vetter , Sumit Semwal , Liam Mark , Chris Goldsworthy , Laura Abbott , Brian Starkey , Hridya Valsaraju , Suren Baghdasaryan , Sandeep Patil , Daniel Mentz , =?utf-8?q?=C3=98rjan_Eide?= , Robin Murphy , Ezequiel Garcia , Simon Ser , James Jones , linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v2 1/2] dma-buf: dma-heap: Provide accessor to get heap name Date: Tue, 9 Feb 2021 19:48:17 +0000 Message-Id: <20210209194818.2459062-1-john.stultz@linaro.org> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org It can be useful to access the name for the heap, so provide an accessor to do so. Cc: Daniel Vetter Cc: Sumit Semwal Cc: Liam Mark Cc: Chris Goldsworthy Cc: Laura Abbott Cc: Brian Starkey Cc: Hridya Valsaraju Cc: Suren Baghdasaryan Cc: Sandeep Patil Cc: Daniel Mentz Cc: Ørjan Eide Cc: Robin Murphy Cc: Ezequiel Garcia Cc: Simon Ser Cc: James Jones Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: John Stultz --- v2: * Make sure to use "const char *" as Reported-by: kernel test robot --- drivers/dma-buf/dma-heap.c | 12 ++++++++++++ include/linux/dma-heap.h | 9 +++++++++ 2 files changed, 21 insertions(+) diff --git a/drivers/dma-buf/dma-heap.c b/drivers/dma-buf/dma-heap.c index afd22c9dbdcf..70e410c64c1c 100644 --- a/drivers/dma-buf/dma-heap.c +++ b/drivers/dma-buf/dma-heap.c @@ -190,6 +190,18 @@ void *dma_heap_get_drvdata(struct dma_heap *heap) return heap->priv; } +/** + * dma_heap_get_name() - get heap name + * @heap: DMA-Heap to retrieve private data for + * + * Returns: + * The char* for the heap name. + */ +const char *dma_heap_get_name(struct dma_heap *heap) +{ + return heap->name; +} + struct dma_heap *dma_heap_add(const struct dma_heap_export_info *exp_info) { struct dma_heap *heap, *h, *err_ret; diff --git a/include/linux/dma-heap.h b/include/linux/dma-heap.h index 454e354d1ffb..83b8cfb2d760 100644 --- a/include/linux/dma-heap.h +++ b/include/linux/dma-heap.h @@ -50,6 +50,15 @@ struct dma_heap_export_info { */ void *dma_heap_get_drvdata(struct dma_heap *heap); +/** + * dma_heap_get_name() - get heap name + * @heap: DMA-Heap to retrieve private data for + * + * Returns: + * The char* for the heap name. + */ +const char *dma_heap_get_name(struct dma_heap *heap); + /** * dma_heap_add - adds a heap to dmabuf heaps * @exp_info: information needed to register this heap From patchwork Tue Feb 9 19:48:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: John Stultz X-Patchwork-Id: 12079065 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 9EF34C433E0 for ; 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Tue, 09 Feb 2021 11:48:26 -0800 (PST) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id j17sm22365836pfh.183.2021.02.09.11.48.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Feb 2021 11:48:26 -0800 (PST) From: John Stultz To: lkml Cc: John Stultz , Daniel Vetter , Sumit Semwal , Liam Mark , Chris Goldsworthy , Laura Abbott , Brian Starkey , Hridya Valsaraju , Suren Baghdasaryan , Sandeep Patil , Daniel Mentz , =?utf-8?q?=C3=98rjan_Eide?= , Robin Murphy , Ezequiel Garcia , Simon Ser , James Jones , linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH v2 2/2] dma-buf: heaps: Fix the name used when exporting dmabufs to be the actual heap name Date: Tue, 9 Feb 2021 19:48:18 +0000 Message-Id: <20210209194818.2459062-2-john.stultz@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210209194818.2459062-1-john.stultz@linaro.org> References: <20210209194818.2459062-1-john.stultz@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org By default dma_buf_export() sets the exporter name to be KBUILD_MODNAME. Unfortunately this may not be identical to the string used as the heap name (ie: "system" vs "system_heap"). This can cause some minor confusion with tooling, and there is the future potential where multiple heap types may be exported by the same module (but would all have the same name). So to avoid all this, set the exporter exp_name to the heap name. Cc: Daniel Vetter Cc: Sumit Semwal Cc: Liam Mark Cc: Chris Goldsworthy Cc: Laura Abbott Cc: Brian Starkey Cc: Hridya Valsaraju Cc: Suren Baghdasaryan Cc: Sandeep Patil Cc: Daniel Mentz Cc: Ørjan Eide Cc: Robin Murphy Cc: Ezequiel Garcia Cc: Simon Ser Cc: James Jones Cc: linux-media@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: John Stultz --- drivers/dma-buf/heaps/cma_heap.c | 1 + drivers/dma-buf/heaps/system_heap.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/dma-buf/heaps/cma_heap.c b/drivers/dma-buf/heaps/cma_heap.c index 364fc2f3e499..62465d61ccc7 100644 --- a/drivers/dma-buf/heaps/cma_heap.c +++ b/drivers/dma-buf/heaps/cma_heap.c @@ -339,6 +339,7 @@ static int cma_heap_allocate(struct dma_heap *heap, buffer->pagecount = pagecount; /* create the dmabuf */ + exp_info.exp_name = dma_heap_get_name(heap); exp_info.ops = &cma_heap_buf_ops; exp_info.size = buffer->len; exp_info.flags = fd_flags; diff --git a/drivers/dma-buf/heaps/system_heap.c b/drivers/dma-buf/heaps/system_heap.c index 17e0e9a68baf..2d4afc79c700 100644 --- a/drivers/dma-buf/heaps/system_heap.c +++ b/drivers/dma-buf/heaps/system_heap.c @@ -388,6 +388,7 @@ static int system_heap_allocate(struct dma_heap *heap, } /* create the dmabuf */ + exp_info.exp_name = dma_heap_get_name(heap); exp_info.ops = &system_heap_buf_ops; exp_info.size = buffer->len; exp_info.flags = fd_flags;