From patchwork Tue Mar 2 02:56:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: John Stultz X-Patchwork-Id: 390665 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=-18.7 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=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 6746AC433E9 for ; Tue, 2 Mar 2021 17:33:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3782664F23 for ; Tue, 2 Mar 2021 17:33:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1580176AbhCBRab (ORCPT ); Tue, 2 Mar 2021 12:30:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58782 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1445224AbhCBC5Q (ORCPT ); Mon, 1 Mar 2021 21:57:16 -0500 Received: from mail-pl1-x629.google.com (mail-pl1-x629.google.com [IPv6:2607:f8b0:4864:20::629]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 15832C06178A for ; Mon, 1 Mar 2021 18:56:36 -0800 (PST) Received: by mail-pl1-x629.google.com with SMTP id ba1so11182530plb.1 for ; Mon, 01 Mar 2021 18:56:36 -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=+IZNoE4E9l3eWMVT2Obt86H5jq5BW9DleHnD2g9iNvw=; b=ZxZq/smZVpC9WlNe4MDL4pHr/HTA8pP44i22GmGeqCqsuxStxJ4pS8cxERjZNkuZJv 8ThxGCSXUkL8yTS3EGUx59IAQU79hIJHzEhVtZgCwJzx52YmlJnwYycZSCG6YihxCgp1 izaFAkOo5+o+BgIGuJGfhK7cHViZ9bhCuDpSQWQXWEotbeWx5+54lYZ7tYs19GAjAnsj alU2a9xA68rEEvsHLTC178xs2Qu07kCF6dB/DdNVP/xGoZDAh3TMTyLjOtg/14rbwUDR 7khnMT7o0YBRpOWwaNWaRCcFoONoegT8TGGUL2zx9WGRlys1kU0qhrA37BbmvamwGydq alPg== 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=+IZNoE4E9l3eWMVT2Obt86H5jq5BW9DleHnD2g9iNvw=; b=UD4XM5wFROYHNoHFUkE6Szkq2i6x2ym+50azbvPuACslGn8vczyhbNPTLr9eQLYdzU SVo7VMkJszgQxG6UiE9cc8qt1PxtL9VEHxdr6p/nwzOE6SK8VGSeS7v7syNIjw+JPiyb lyvv5XHpBizus/aay7QeS3spcl5yPcGjMmDQmJFHBzQG8XsK4pEkM+X7R/hTl5S5DaK7 D67/Kvqdm2Vm5m/tU3176JUpv4JhAbl/nv0+yDGs6Cf+qkbxBxtT2jrmpBGMkNZVxemm K5JbM+9J2my4pIfCObz74DKnOiGxQclmjBavJ8nbN/TKNsX5tTxzjgKeTojb0j6QT3ln OmTw== X-Gm-Message-State: AOAM5301f2dgLJUxd6hW19XBGy9QUJh1LF7ENGtzJjqiRtRVtCNhHleh BU6QYf9kr84EoF2EcW+bjnF/6w== X-Google-Smtp-Source: ABdhPJyBS9U+6AtdKNABLhwXXCBgjsOObPODZW8Oq9QBLmZ5tZ2NDADOH8ib3q/xB0NcIvIbDYUzig== X-Received: by 2002:a17:90b:3890:: with SMTP id mu16mr2014337pjb.9.1614653795608; Mon, 01 Mar 2021 18:56:35 -0800 (PST) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id r16sm18928400pfh.168.2021.03.01.18.56.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Mar 2021 18:56:35 -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: [RESEND][PATCH v2 1/2] dma-buf: dma-heap: Provide accessor to get heap name Date: Tue, 2 Mar 2021 02:56:28 +0000 Message-Id: <20210302025629.2558215-1-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 6b5db954569f..56bf5ad01ad5 100644 --- a/drivers/dma-buf/dma-heap.c +++ b/drivers/dma-buf/dma-heap.c @@ -202,6 +202,18 @@ 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 5bc5c946af58..0c05561cad6e 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 Mar 2 02:56:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: John Stultz X-Patchwork-Id: 392431 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=-18.7 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=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 8D497C43381 for ; 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Mon, 01 Mar 2021 18:56:36 -0800 (PST) Received: from localhost.localdomain ([2601:1c2:680:1319:692:26ff:feda:3a81]) by smtp.gmail.com with ESMTPSA id r16sm18928400pfh.168.2021.03.01.18.56.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Mar 2021 18:56:36 -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: [RESEND][PATCH v2 2/2] dma-buf: heaps: Fix the name used when exporting dmabufs to be the actual heap name Date: Tue, 2 Mar 2021 02:56:29 +0000 Message-Id: <20210302025629.2558215-2-john.stultz@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210302025629.2558215-1-john.stultz@linaro.org> References: <20210302025629.2558215-1-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 5d64eccd21d6..0c05b79870f9 100644 --- a/drivers/dma-buf/heaps/cma_heap.c +++ b/drivers/dma-buf/heaps/cma_heap.c @@ -339,6 +339,7 @@ static struct dma_buf *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 29e49ac17251..23a7e74ef966 100644 --- a/drivers/dma-buf/heaps/system_heap.c +++ b/drivers/dma-buf/heaps/system_heap.c @@ -390,6 +390,7 @@ static struct dma_buf *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;