aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorChristophe JAILLET <christophe.jaillet@wanadoo.fr>2021-03-28 19:02:18 +0200
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2021-04-06 16:07:26 +0200
commitc1dbcf62e1fd6a49c773dc25a715b2e02e27df80 (patch)
treec3dddf4b4d76b896ba0bda9cd53acfbe2c4ea4b8
parent7a77379fe1d36b83009a9aee68031e22792c4091 (diff)
media: tw686x: 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 'tw686x_audio_dma_alloc()' (tw686x-audio.c) GFP_KERNEL can be used because it is only called from a probe function and no spinlock is taken in the between. The call chain is: tw686x_probe (tw686x-core.c) --> tw686x_audio_init (tw686x-audio.c) --> tw686x_audio_dma_alloc (tw686x-audio.c) When memory is allocated in 'tw686x_memcpy_dma_alloc()' and in 'tw686x_sg_dma_alloc()' (tw686x-video.c) GFP_KERNEL can be used because these functions are .alloc functions from a tw686x_dma_ops structure. @@ @@ - 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/tw686x/tw686x-audio.c13
-rw-r--r--drivers/media/pci/tw686x/tw686x-core.c2
-rw-r--r--drivers/media/pci/tw686x/tw686x-video.c17
3 files changed, 16 insertions, 16 deletions
diff --git a/drivers/media/pci/tw686x/tw686x-audio.c b/drivers/media/pci/tw686x/tw686x-audio.c
index 54144e23a487..74cba1368cfa 100644
--- a/drivers/media/pci/tw686x/tw686x-audio.c
+++ b/drivers/media/pci/tw686x/tw686x-audio.c
@@ -300,9 +300,9 @@ static void tw686x_audio_dma_free(struct tw686x_dev *dev,
for (pb = 0; pb < 2; pb++) {
if (!ac->dma_descs[pb].virt)
continue;
- pci_free_consistent(dev->pci_dev, ac->dma_descs[pb].size,
- ac->dma_descs[pb].virt,
- ac->dma_descs[pb].phys);
+ dma_free_coherent(&dev->pci_dev->dev, ac->dma_descs[pb].size,
+ ac->dma_descs[pb].virt,
+ ac->dma_descs[pb].phys);
ac->dma_descs[pb].virt = NULL;
}
}
@@ -313,7 +313,7 @@ static int tw686x_audio_dma_alloc(struct tw686x_dev *dev,
int pb;
/*
- * In the memcpy DMA mode we allocate a consistent buffer
+ * In the memcpy DMA mode we allocate a coherent buffer
* and use it for the DMA capture. Otherwise, DMA
* acts on the ALSA buffers as received in pcm_prepare.
*/
@@ -324,8 +324,9 @@ static int tw686x_audio_dma_alloc(struct tw686x_dev *dev,
u32 reg = pb ? ADMA_B_ADDR[ac->ch] : ADMA_P_ADDR[ac->ch];
void *virt;
- virt = pci_alloc_consistent(dev->pci_dev, AUDIO_DMA_SIZE_MAX,
- &ac->dma_descs[pb].phys);
+ virt = dma_alloc_coherent(&dev->pci_dev->dev,
+ AUDIO_DMA_SIZE_MAX,
+ &ac->dma_descs[pb].phys, GFP_KERNEL);
if (!virt) {
dev_err(&dev->pci_dev->dev,
"dma%d: unable to allocate audio DMA %s-buffer\n",
diff --git a/drivers/media/pci/tw686x/tw686x-core.c b/drivers/media/pci/tw686x/tw686x-core.c
index 74ae4f0dcee7..6676e069b515 100644
--- a/drivers/media/pci/tw686x/tw686x-core.c
+++ b/drivers/media/pci/tw686x/tw686x-core.c
@@ -276,7 +276,7 @@ static int tw686x_probe(struct pci_dev *pci_dev,
}
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) {
dev_err(&pci_dev->dev, "32-bit PCI DMA not supported\n");
err = -EIO;
diff --git a/drivers/media/pci/tw686x/tw686x-video.c b/drivers/media/pci/tw686x/tw686x-video.c
index 1ced2b0ddb24..b227e9e78ebd 100644
--- a/drivers/media/pci/tw686x/tw686x-video.c
+++ b/drivers/media/pci/tw686x/tw686x-video.c
@@ -92,8 +92,8 @@ static void tw686x_memcpy_dma_free(struct tw686x_video_channel *vc,
}
if (desc->virt) {
- pci_free_consistent(dev->pci_dev, desc->size,
- desc->virt, desc->phys);
+ dma_free_coherent(&dev->pci_dev->dev, desc->size, desc->virt,
+ desc->phys);
desc->virt = NULL;
}
}
@@ -110,8 +110,8 @@ static int tw686x_memcpy_dma_alloc(struct tw686x_video_channel *vc,
"Allocating buffer but previous still here\n");
len = (vc->width * vc->height * vc->format->depth) >> 3;
- virt = pci_alloc_consistent(dev->pci_dev, len,
- &vc->dma_descs[pb].phys);
+ virt = dma_alloc_coherent(&dev->pci_dev->dev, len,
+ &vc->dma_descs[pb].phys, GFP_KERNEL);
if (!virt) {
v4l2_err(&dev->v4l2_dev,
"dma%d: unable to allocate %s-buffer\n",
@@ -258,8 +258,8 @@ static void tw686x_sg_dma_free(struct tw686x_video_channel *vc,
struct tw686x_dev *dev = vc->dev;
if (desc->size) {
- pci_free_consistent(dev->pci_dev, desc->size,
- desc->virt, desc->phys);
+ dma_free_coherent(&dev->pci_dev->dev, desc->size, desc->virt,
+ desc->phys);
desc->virt = NULL;
}
@@ -276,9 +276,8 @@ static int tw686x_sg_dma_alloc(struct tw686x_video_channel *vc,
void *virt;
if (desc->size) {
-
- virt = pci_alloc_consistent(dev->pci_dev, desc->size,
- &desc->phys);
+ virt = dma_alloc_coherent(&dev->pci_dev->dev, desc->size,
+ &desc->phys, GFP_KERNEL);
if (!virt) {
v4l2_err(&dev->v4l2_dev,
"dma%d: unable to allocate %s-buffer\n",

Privacy Policy