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Bottomley" , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Ben Skeggs , Pawel Osciak , Marek Szyprowski , Matt Porter , iommu@lists.linux-foundation.org Subject: [PATCH 20/28] sgiwd93: convert from dma_cache_sync to dma_sync_single_for_device Date: Wed, 19 Aug 2020 08:55:47 +0200 Message-Id: <20200819065555.1802761-21-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200819065555.1802761-1-hch@lst.de> References: <20200819065555.1802761-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Cc: Tom Lendacky , alsa-devel@alsa-project.org, linux-samsung-soc@vger.kernel.org, linux-ia64@vger.kernel.org, linux-scsi@vger.kernel.org, linux-parisc@vger.kernel.org, linux-doc@vger.kernel.org, nouveau@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Use the proper modern API to transfer cache ownership for incoherent DMA. This also means we can allocate the memory as DMA_TO_DEVICE instead of bidirectional. Signed-off-by: Christoph Hellwig --- drivers/scsi/sgiwd93.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/sgiwd93.c b/drivers/scsi/sgiwd93.c index 133adcf99e9340..1538f65307f22f 100644 --- a/drivers/scsi/sgiwd93.c +++ b/drivers/scsi/sgiwd93.c @@ -95,7 +95,7 @@ void fill_hpc_entries(struct ip22_hostdata *hd, struct scsi_cmnd *cmd, int din) */ hcp->desc.pbuf = 0; hcp->desc.cntinfo = HPCDMA_EOX; - dma_cache_sync(hd->dev, hd->cpu, + dma_sync_single_for_device(hd->dev, hd->dma, (unsigned long)(hcp + 1) - (unsigned long)hd->cpu, DMA_TO_DEVICE); } @@ -235,7 +235,7 @@ static int sgiwd93_probe(struct platform_device *pdev) hdata = host_to_hostdata(host); hdata->dev = &pdev->dev; hdata->cpu = dma_alloc_pages(&pdev->dev, HPC_DMA_SIZE, &hdata->dma, - DMA_BIDIRECTIONAL, GFP_KERNEL); + DMA_TO_DEVICE, GFP_KERNEL); if (!hdata->cpu) { printk(KERN_WARNING "sgiwd93: Could not allocate memory for " "host %d buffer.\n", unit); @@ -275,7 +275,7 @@ static int sgiwd93_probe(struct platform_device *pdev) free_irq(irq, host); out_free: dma_free_pages(&pdev->dev, HPC_DMA_SIZE, hdata->cpu, hdata->dma, - DMA_BIDIRECTIONAL); + DMA_TO_DEVICE); out_put: scsi_host_put(host); out: @@ -292,7 +292,7 @@ static int sgiwd93_remove(struct platform_device *pdev) scsi_remove_host(host); free_irq(pd->irq, host); dma_free_pages(&pdev->dev, HPC_DMA_SIZE, hdata->cpu, hdata->dma, - DMA_BIDIRECTIONAL); + DMA_TO_DEVICE); scsi_host_put(host); return 0; } -- 2.28.0 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu