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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2021-03-28 20:31:01 +0200
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2021-04-06 16:07:42 +0200
commite999db587312e5b798421d803495f41d1283d7d7 (patch)
tree34d4484e034ce37ec76c112abd13f5a11589aa28
parentc1dbcf62e1fd6a49c773dc25a715b2e02e27df80 (diff)
media: tw68: switch from 'pci_' to 'dma_' API
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 <christophe.jaillet@wanadoo.fr> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
-rw-r--r--drivers/media/pci/tw68/tw68-core.c2
-rw-r--r--drivers/media/pci/tw68/tw68-risc.c3
-rw-r--r--drivers/media/pci/tw68/tw68-video.c2
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)

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