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authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2021-06-13 19:36:34 +0200
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2021-06-17 10:24:41 +0200
commit00ae4ebc2d07db50d8432ebec3158c96b36f1a6d (patch)
treee9880c15e9a3bf911ff03e36add17d7526bc9f7a /drivers/media
parent7ec1c4a57c428a2114b81059e8683f8cf348920f (diff)
media: pci: cx88: 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. Only 2 functions allocate some memory. They are both in cx88-core.c When memory is allocated in 'cx88_risc_buffer()', GFP_KERNEL can be used because its 2 callers end up to '.buf_prepare' functions in 'vb2_ops' structures. The call chains are: .buf_prepare (cx88-vbi.c) --> buffer_prepare (cx88-vbi.c) --> cx88_risc_buffer .buf_prepare (cx88-video.c) --> buffer_prepare (cx88-video.c) --> cx88_risc_buffer When memory is allocated in 'cx88_risc_databuffer()', GFP_KERNEL can be used because its 2 callers end up to 'snd_cx88_hw_params' which already uses GFP_KERNEL and '.buf_prepare' functions in 'vb2_ops' structures. The call chains are: snd_cx88_hw_params (cx88-alsa.c) --> cx88_risc_databuffer .buf_prepare (cx88-blackbird.c) --> buffer_prepare (cx88-blackbird.c) --> cx8802_buf_prepare (cx88-mpeg.c) --> cx88_risc_databuffer .buf_prepare (cx88-dvb.c) --> buffer_prepare (cx88-dvb.c) --> cx8802_buf_prepare (cx88-mpeg.c) --> cx88_risc_databuffer @@ @@ - 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>
Diffstat (limited to 'drivers/media')
-rw-r--r--drivers/media/pci/cx88/cx88-alsa.c6
-rw-r--r--drivers/media/pci/cx88/cx88-blackbird.c3
-rw-r--r--drivers/media/pci/cx88/cx88-core.c6
-rw-r--r--drivers/media/pci/cx88/cx88-dvb.c3
-rw-r--r--drivers/media/pci/cx88/cx88-mpeg.c6
-rw-r--r--drivers/media/pci/cx88/cx88-vbi.c3
-rw-r--r--drivers/media/pci/cx88/cx88-video.c5
7 files changed, 19 insertions, 13 deletions
diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c
index c83814c052d3..29fb1311e443 100644
--- a/drivers/media/pci/cx88/cx88-alsa.c
+++ b/drivers/media/pci/cx88/cx88-alsa.c
@@ -357,8 +357,8 @@ static int dsp_buffer_free(struct cx88_audio_dev *chip)
cx88_alsa_dma_unmap(chip);
cx88_alsa_dma_free(chip->buf);
if (risc->cpu)
- pci_free_consistent(chip->pci, risc->size,
- risc->cpu, risc->dma);
+ dma_free_coherent(&chip->pci->dev, risc->size, risc->cpu,
+ risc->dma);
kfree(chip->buf);
chip->buf = NULL;
@@ -868,7 +868,7 @@ static int snd_cx88_create(struct snd_card *card, struct pci_dev *pci,
return err;
}
- err = pci_set_dma_mask(pci, DMA_BIT_MASK(32));
+ err = dma_set_mask(&pci->dev, DMA_BIT_MASK(32));
if (err) {
dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n", core->name);
cx88_core_put(core, pci);
diff --git a/drivers/media/pci/cx88/cx88-blackbird.c b/drivers/media/pci/cx88/cx88-blackbird.c
index fa4ca002ed19..d5da3bd5695d 100644
--- a/drivers/media/pci/cx88/cx88-blackbird.c
+++ b/drivers/media/pci/cx88/cx88-blackbird.c
@@ -685,7 +685,8 @@ static void buffer_finish(struct vb2_buffer *vb)
struct cx88_riscmem *risc = &buf->risc;
if (risc->cpu)
- pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
+ dma_free_coherent(&dev->pci->dev, risc->size, risc->cpu,
+ risc->dma);
memset(risc, 0, sizeof(*risc));
}
diff --git a/drivers/media/pci/cx88/cx88-core.c b/drivers/media/pci/cx88/cx88-core.c
index 48c8a3429542..89d4d5a3ba34 100644
--- a/drivers/media/pci/cx88/cx88-core.c
+++ b/drivers/media/pci/cx88/cx88-core.c
@@ -152,7 +152,8 @@ int cx88_risc_buffer(struct pci_dev *pci, struct cx88_riscmem *risc,
instructions += 4;
risc->size = instructions * 8;
risc->dma = 0;
- risc->cpu = pci_zalloc_consistent(pci, risc->size, &risc->dma);
+ risc->cpu = dma_alloc_coherent(&pci->dev, risc->size, &risc->dma,
+ GFP_KERNEL);
if (!risc->cpu)
return -ENOMEM;
@@ -190,7 +191,8 @@ int cx88_risc_databuffer(struct pci_dev *pci, struct cx88_riscmem *risc,
instructions += 3;
risc->size = instructions * 8;
risc->dma = 0;
- risc->cpu = pci_zalloc_consistent(pci, risc->size, &risc->dma);
+ risc->cpu = dma_alloc_coherent(&pci->dev, risc->size, &risc->dma,
+ GFP_KERNEL);
if (!risc->cpu)
return -ENOMEM;
diff --git a/drivers/media/pci/cx88/cx88-dvb.c b/drivers/media/pci/cx88/cx88-dvb.c
index 202ff9e8c257..2087f2491c42 100644
--- a/drivers/media/pci/cx88/cx88-dvb.c
+++ b/drivers/media/pci/cx88/cx88-dvb.c
@@ -103,7 +103,8 @@ static void buffer_finish(struct vb2_buffer *vb)
struct cx88_riscmem *risc = &buf->risc;
if (risc->cpu)
- pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
+ dma_free_coherent(&dev->pci->dev, risc->size, risc->cpu,
+ risc->dma);
memset(risc, 0, sizeof(*risc));
}
diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
index a3edb548afde..680e1e3fe89b 100644
--- a/drivers/media/pci/cx88/cx88-mpeg.c
+++ b/drivers/media/pci/cx88/cx88-mpeg.c
@@ -226,8 +226,8 @@ int cx8802_buf_prepare(struct vb2_queue *q, struct cx8802_dev *dev,
dev->ts_packet_size, dev->ts_packet_count, 0);
if (rc) {
if (risc->cpu)
- pci_free_consistent(dev->pci, risc->size,
- risc->cpu, risc->dma);
+ dma_free_coherent(&dev->pci->dev, risc->size,
+ risc->cpu, risc->dma);
memset(risc, 0, sizeof(*risc));
return rc;
}
@@ -386,7 +386,7 @@ static int cx8802_init_common(struct cx8802_dev *dev)
if (pci_enable_device(dev->pci))
return -EIO;
pci_set_master(dev->pci);
- err = pci_set_dma_mask(dev->pci, DMA_BIT_MASK(32));
+ err = dma_set_mask(&dev->pci->dev, DMA_BIT_MASK(32));
if (err) {
pr_err("Oops: no 32bit PCI DMA ???\n");
return -EIO;
diff --git a/drivers/media/pci/cx88/cx88-vbi.c b/drivers/media/pci/cx88/cx88-vbi.c
index 58489ea0c1da..a075788c64d4 100644
--- a/drivers/media/pci/cx88/cx88-vbi.c
+++ b/drivers/media/pci/cx88/cx88-vbi.c
@@ -159,7 +159,8 @@ static void buffer_finish(struct vb2_buffer *vb)
struct cx88_riscmem *risc = &buf->risc;
if (risc->cpu)
- pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
+ dma_free_coherent(&dev->pci->dev, risc->size, risc->cpu,
+ risc->dma);
memset(risc, 0, sizeof(*risc));
}
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index 8cffdacf6007..c17ad9f7d822 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -492,7 +492,8 @@ static void buffer_finish(struct vb2_buffer *vb)
struct cx88_riscmem *risc = &buf->risc;
if (risc->cpu)
- pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
+ dma_free_coherent(&dev->pci->dev, risc->size, risc->cpu,
+ risc->dma);
memset(risc, 0, sizeof(*risc));
}
@@ -1288,7 +1289,7 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
(unsigned long long)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_err("Oops: no 32bit PCI DMA ???\n");
goto fail_core;