From patchwork Sun Mar 28 18:31:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe JAILLET X-Patchwork-Id: 12169063 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=-16.8 required=3.0 tests=BAYES_00, 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 D7287C433DB for ; Sun, 28 Mar 2021 18:32:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8FB1E6196C for ; Sun, 28 Mar 2021 18:32:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231378AbhC1Sbb (ORCPT ); Sun, 28 Mar 2021 14:31:31 -0400 Received: from smtp08.smtpout.orange.fr ([80.12.242.130]:26090 "EHLO smtp.smtpout.orange.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231247AbhC1SbF (ORCPT ); Sun, 28 Mar 2021 14:31:05 -0400 Received: from localhost.localdomain ([90.126.11.170]) by mwinf5d43 with ME id luX3240043g7mfN03uX3l1; Sun, 28 Mar 2021 20:31:04 +0200 X-ME-Helo: localhost.localdomain X-ME-Auth: Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= X-ME-Date: Sun, 28 Mar 2021 20:31:04 +0200 X-ME-IP: 90.126.11.170 From: Christophe JAILLET To: hverkuil@xs4all.nl, mchehab@kernel.org, vaibhavgupta40@gmail.com, grandmaster@al2klimov.de Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET Subject: [PATCH] media: tw68: switch from 'pci_' to 'dma_' API Date: Sun, 28 Mar 2021 20:31:01 +0200 Message-Id: <6d06f427d60660d7e0cca2cc107c0e27f57beef3.1616956181.git.christophe.jaillet@wanadoo.fr> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The wrappers in include/linux/pci-dma-compat.h should go away. The patch has been generated with the coccinelle script below and has been hand modified to replace GFP_ with a correct flag. It has been compile tested. When memory is allocated in 'tw68_risc_buffer()' (tw68-risc.c) GFP_KERNEL can be used because this function is only called from a vb2_ops buf_prepare function. The call chain is: tw68_video_qops.buf_prepare (tw68-video.c) --> tw68_buf_prepare (tw68-video.c) --> tw68_risc_buffer @@ @@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@ @@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@ @@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@ @@ - PCI_DMA_NONE + DMA_NONE @@ expression e1, e2, e3; @@ - pci_alloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3; @@ - pci_zalloc_consistent(e1, e2, e3) + dma_alloc_coherent(&e1->dev, e2, e3, GFP_) @@ expression e1, e2, e3, e4; @@ - pci_free_consistent(e1, e2, e3, e4) + dma_free_coherent(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_single(e1, e2, e3, e4) + dma_map_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_single(e1, e2, e3, e4) + dma_unmap_single(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4, e5; @@ - pci_map_page(e1, e2, e3, e4, e5) + dma_map_page(&e1->dev, e2, e3, e4, e5) @@ expression e1, e2, e3, e4; @@ - pci_unmap_page(e1, e2, e3, e4) + dma_unmap_page(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_map_sg(e1, e2, e3, e4) + dma_map_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_unmap_sg(e1, e2, e3, e4) + dma_unmap_sg(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_cpu(e1, e2, e3, e4) + dma_sync_single_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_single_for_device(e1, e2, e3, e4) + dma_sync_single_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_cpu(e1, e2, e3, e4) + dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4) @@ expression e1, e2, e3, e4; @@ - pci_dma_sync_sg_for_device(e1, e2, e3, e4) + dma_sync_sg_for_device(&e1->dev, e2, e3, e4) @@ expression e1, e2; @@ - pci_dma_mapping_error(e1, e2) + dma_mapping_error(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_dma_mask(e1, e2) + dma_set_mask(&e1->dev, e2) @@ expression e1, e2; @@ - pci_set_consistent_dma_mask(e1, e2) + dma_set_coherent_mask(&e1->dev, e2) Signed-off-by: Christophe JAILLET --- If needed, see post from Christoph Hellwig on the kernel-janitors ML: https://marc.info/?l=kernel-janitors&m=158745678307186&w=4 --- drivers/media/pci/tw68/tw68-core.c | 2 +- drivers/media/pci/tw68/tw68-risc.c | 3 ++- drivers/media/pci/tw68/tw68-video.c | 2 +- 3 files changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/media/pci/tw68/tw68-core.c b/drivers/media/pci/tw68/tw68-core.c index bf15fa7c0ea1..35dd19b2427e 100644 --- a/drivers/media/pci/tw68/tw68-core.c +++ b/drivers/media/pci/tw68/tw68-core.c @@ -248,7 +248,7 @@ static int tw68_initdev(struct pci_dev *pci_dev, dev->name, pci_name(pci_dev), dev->pci_rev, pci_dev->irq, dev->pci_lat, (u64)pci_resource_start(pci_dev, 0)); pci_set_master(pci_dev); - err = pci_set_dma_mask(pci_dev, DMA_BIT_MASK(32)); + err = dma_set_mask(&pci_dev->dev, DMA_BIT_MASK(32)); if (err) { pr_info("%s: Oops: no 32bit PCI DMA ???\n", dev->name); goto fail1; diff --git a/drivers/media/pci/tw68/tw68-risc.c b/drivers/media/pci/tw68/tw68-risc.c index eef0c5281f61..dacb136c4f3a 100644 --- a/drivers/media/pci/tw68/tw68-risc.c +++ b/drivers/media/pci/tw68/tw68-risc.c @@ -151,7 +151,8 @@ int tw68_risc_buffer(struct pci_dev *pci, instructions = fields * (1 + (((bpl + padding) * lines) / PAGE_SIZE) + lines) + 4; buf->size = instructions * 8; - buf->cpu = pci_alloc_consistent(pci, buf->size, &buf->dma); + buf->cpu = dma_alloc_coherent(&pci->dev, buf->size, &buf->dma, + GFP_KERNEL); if (buf->cpu == NULL) return -ENOMEM; diff --git a/drivers/media/pci/tw68/tw68-video.c b/drivers/media/pci/tw68/tw68-video.c index 10986fcd66a5..fe94944d0531 100644 --- a/drivers/media/pci/tw68/tw68-video.c +++ b/drivers/media/pci/tw68/tw68-video.c @@ -485,7 +485,7 @@ static void tw68_buf_finish(struct vb2_buffer *vb) struct tw68_dev *dev = vb2_get_drv_priv(vq); struct tw68_buf *buf = container_of(vbuf, struct tw68_buf, vb); - pci_free_consistent(dev->pci, buf->size, buf->cpu, buf->dma); + dma_free_coherent(&dev->pci->dev, buf->size, buf->cpu, buf->dma); } static int tw68_start_streaming(struct vb2_queue *q, unsigned int count)