[PATCH 5.15 270/276] media: pci/ivtv: switch from pci_ to dma_ API

17 Oct 2025

5.15-stable review patch.  If anyone has any objections, please let me know.
------------------
From: Christophe JAILLET christophe.jaillet@wanadoo.fr
[ Upstream commit 1932dc2f4cf6ac23e48e5fcc24d21adbe35691d1 ]
The wrappers in include/linux/pci-dma-compat.h should go away.
The patch has been generated with the coccinelle script below.
It has been compile tested.
No memory allocation in involved in this patch, so no GFP_ tweak is needed.
@@ @@
-    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
Stable-dep-of: 1069a4fe637d ("media: pci: ivtv: Add missing check after DMA map")
Signed-off-by: Sasha Levin sashal@kernel.org
Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
---
 drivers/media/pci/ivtv/ivtv-driver.c  |    2 +-
 drivers/media/pci/ivtv/ivtv-queue.c   |   18 ++++++++++--------
 drivers/media/pci/ivtv/ivtv-streams.c |   22 +++++++++++-----------
 drivers/media/pci/ivtv/ivtv-udma.c    |   19 ++++++++++++-------
 drivers/media/pci/ivtv/ivtv-yuv.c     |   10 +++++++---
 5 files changed, 41 insertions(+), 30 deletions(-)

--- a/drivers/media/pci/ivtv/ivtv-driver.c
+++ b/drivers/media/pci/ivtv/ivtv-driver.c
@@ -837,7 +837,7 @@ static int ivtv_setup_pci(struct ivtv *i
    	IVTV_ERR("Can't enable device!\n");
    	return -EIO;
    }
-	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
+	if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
    	IVTV_ERR("No suitable DMA available.\n");
    	return -EIO;
    }
--- a/drivers/media/pci/ivtv/ivtv-queue.c
+++ b/drivers/media/pci/ivtv/ivtv-queue.c
@@ -188,7 +188,7 @@ int ivtv_stream_alloc(struct ivtv_stream
    	return 0;
IVTV_DEBUG_INFO("Allocate %s%s stream: %d x %d buffers (%dkB total)\n",
-		s->dma != PCI_DMA_NONE ? "DMA " : "",
+		s->dma != DMA_NONE ? "DMA " : "",
    	s->name, s->buffers, s->buf_size, s->buffers * s->buf_size / 1024);
s->sg_pending = kzalloc(SGsize, GFP_KERNEL|__GFP_NOWARN);
@@ -218,8 +218,9 @@ int ivtv_stream_alloc(struct ivtv_stream
    	return -ENOMEM;
    }
    if (ivtv_might_use_dma(s)) {
-		s->sg_handle = pci_map_single(itv->pdev, s->sg_dma,
-				sizeof(struct ivtv_sg_element), PCI_DMA_TODEVICE);
+		s->sg_handle = dma_map_single(&itv->pdev->dev, s->sg_dma,
+					      sizeof(struct ivtv_sg_element),
+					      DMA_TO_DEVICE);
    	ivtv_stream_sync_for_cpu(s);
    }
@@ -237,7 +238,7 @@ int ivtv_stream_alloc(struct ivtv_stream
    	}
    	INIT_LIST_HEAD(&buf->list);
    	if (ivtv_might_use_dma(s)) {
-			buf->dma_handle = pci_map_single(s->itv->pdev,
+			buf->dma_handle = dma_map_single(&s->itv->pdev->dev,
    			buf->buf, s->buf_size + 256, s->dma);
    		ivtv_buf_sync_for_cpu(s, buf);
    	}
@@ -260,8 +261,8 @@ void ivtv_stream_free(struct ivtv_stream
    /* empty q_free */
    while ((buf = ivtv_dequeue(s, &s->q_free))) {
    	if (ivtv_might_use_dma(s))
-			pci_unmap_single(s->itv->pdev, buf->dma_handle,
-				s->buf_size + 256, s->dma);
+			dma_unmap_single(&s->itv->pdev->dev, buf->dma_handle,
+					 s->buf_size + 256, s->dma);
    	kfree(buf->buf);
    	kfree(buf);
    }
@@ -269,8 +270,9 @@ void ivtv_stream_free(struct ivtv_stream
    /* Free SG Array/Lists */
    if (s->sg_dma != NULL) {
    	if (s->sg_handle != IVTV_DMA_UNMAPPED) {
-			pci_unmap_single(s->itv->pdev, s->sg_handle,
-				 sizeof(struct ivtv_sg_element), PCI_DMA_TODEVICE);
+			dma_unmap_single(&s->itv->pdev->dev, s->sg_handle,
+					 sizeof(struct ivtv_sg_element),
+					 DMA_TO_DEVICE);
    		s->sg_handle = IVTV_DMA_UNMAPPED;
    	}
    	kfree(s->sg_pending);
--- a/drivers/media/pci/ivtv/ivtv-streams.c
+++ b/drivers/media/pci/ivtv/ivtv-streams.c
@@ -100,7 +100,7 @@ static struct {
    {	/* IVTV_ENC_STREAM_TYPE_MPG */
    	"encoder MPG",
    	VFL_TYPE_VIDEO, 0,
-		PCI_DMA_FROMDEVICE, 0,
+		DMA_FROM_DEVICE, 0,
    	V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER |
    		V4L2_CAP_AUDIO | V4L2_CAP_READWRITE,
    	&ivtv_v4l2_enc_fops
@@ -108,7 +108,7 @@ static struct {
    {	/* IVTV_ENC_STREAM_TYPE_YUV */
    	"encoder YUV",
    	VFL_TYPE_VIDEO, IVTV_V4L2_ENC_YUV_OFFSET,
-		PCI_DMA_FROMDEVICE, 0,
+		DMA_FROM_DEVICE, 0,
    	V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_TUNER |
    		V4L2_CAP_AUDIO | V4L2_CAP_READWRITE,
    	&ivtv_v4l2_enc_fops
@@ -116,7 +116,7 @@ static struct {
    {	/* IVTV_ENC_STREAM_TYPE_VBI */
    	"encoder VBI",
    	VFL_TYPE_VBI, 0,
-		PCI_DMA_FROMDEVICE, 0,
+		DMA_FROM_DEVICE, 0,
    	V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_CAPTURE | V4L2_CAP_TUNER |
    		V4L2_CAP_AUDIO | V4L2_CAP_READWRITE,
    	&ivtv_v4l2_enc_fops
@@ -124,42 +124,42 @@ static struct {
    {	/* IVTV_ENC_STREAM_TYPE_PCM */
    	"encoder PCM",
    	VFL_TYPE_VIDEO, IVTV_V4L2_ENC_PCM_OFFSET,
-		PCI_DMA_FROMDEVICE, 0,
+		DMA_FROM_DEVICE, 0,
    	V4L2_CAP_TUNER | V4L2_CAP_AUDIO | V4L2_CAP_READWRITE,
    	&ivtv_v4l2_enc_fops
    },
    {	/* IVTV_ENC_STREAM_TYPE_RAD */
    	"encoder radio",
    	VFL_TYPE_RADIO, 0,
-		PCI_DMA_NONE, 1,
+		DMA_NONE, 1,
    	V4L2_CAP_RADIO | V4L2_CAP_TUNER,
    	&ivtv_v4l2_radio_fops
    },
    {	/* IVTV_DEC_STREAM_TYPE_MPG */
    	"decoder MPG",
    	VFL_TYPE_VIDEO, IVTV_V4L2_DEC_MPG_OFFSET,
-		PCI_DMA_TODEVICE, 0,
+		DMA_TO_DEVICE, 0,
    	V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_AUDIO | V4L2_CAP_READWRITE,
    	&ivtv_v4l2_dec_fops
    },
    {	/* IVTV_DEC_STREAM_TYPE_VBI */
    	"decoder VBI",
    	VFL_TYPE_VBI, IVTV_V4L2_DEC_VBI_OFFSET,
-		PCI_DMA_NONE, 1,
+		DMA_NONE, 1,
    	V4L2_CAP_SLICED_VBI_CAPTURE | V4L2_CAP_READWRITE,
    	&ivtv_v4l2_enc_fops
    },
    {	/* IVTV_DEC_STREAM_TYPE_VOUT */
    	"decoder VOUT",
    	VFL_TYPE_VBI, IVTV_V4L2_DEC_VOUT_OFFSET,
-		PCI_DMA_NONE, 1,
+		DMA_NONE, 1,
    	V4L2_CAP_SLICED_VBI_OUTPUT | V4L2_CAP_AUDIO | V4L2_CAP_READWRITE,
    	&ivtv_v4l2_dec_fops
    },
    {	/* IVTV_DEC_STREAM_TYPE_YUV */
    	"decoder YUV",
    	VFL_TYPE_VIDEO, IVTV_V4L2_DEC_YUV_OFFSET,
-		PCI_DMA_TODEVICE, 0,
+		DMA_TO_DEVICE, 0,
    	V4L2_CAP_VIDEO_OUTPUT | V4L2_CAP_AUDIO | V4L2_CAP_READWRITE,
    	&ivtv_v4l2_dec_fops
    }
@@ -179,7 +179,7 @@ static void ivtv_stream_init(struct ivtv
    s->vdev.device_caps = ivtv_stream_info[type].v4l2_caps;
if (ivtv_stream_info[type].pio)
-		s->dma = PCI_DMA_NONE;
+		s->dma = DMA_NONE;
    else
    	s->dma = ivtv_stream_info[type].dma;
    s->buf_size = itv->stream_buf_size[type];
@@ -217,7 +217,7 @@ static int ivtv_prep_dev(struct ivtv *it
/* User explicitly selected 0 buffers for these streams, so don't
       create them. */
-	if (ivtv_stream_info[type].dma != PCI_DMA_NONE &&
+	if (ivtv_stream_info[type].dma != DMA_NONE &&
        itv->options.kilobytes[type] == 0) {
    	IVTV_INFO("Disabled %s device\n", ivtv_stream_info[type].name);
    	return 0;
--- a/drivers/media/pci/ivtv/ivtv-udma.c
+++ b/drivers/media/pci/ivtv/ivtv-udma.c
@@ -81,8 +81,10 @@ void ivtv_udma_alloc(struct ivtv *itv)
 {
    if (itv->udma.SG_handle == 0) {
    	/* Map DMA Page Array Buffer */
-		itv->udma.SG_handle = pci_map_single(itv->pdev, itv->udma.SGarray,
-			   sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE);
+		itv->udma.SG_handle = dma_map_single(&itv->pdev->dev,
+						     itv->udma.SGarray,
+						     sizeof(itv->udma.SGarray),
+						     DMA_TO_DEVICE);
    	ivtv_udma_sync_for_cpu(itv);
    }
 }
@@ -135,7 +137,8 @@ int ivtv_udma_setup(struct ivtv *itv, un
    }
/* Map SG List */
-	dma->SG_length = pci_map_sg(itv->pdev, dma->SGlist, dma->page_count, PCI_DMA_TODEVICE);
+	dma->SG_length = dma_map_sg(&itv->pdev->dev, dma->SGlist,
+				    dma->page_count, DMA_TO_DEVICE);
/* Fill SG Array with new values */
    ivtv_udma_fill_sg_array (dma, ivtv_dest_addr, 0, -1);
@@ -159,7 +162,8 @@ void ivtv_udma_unmap(struct ivtv *itv)
/* Unmap Scatterlist */
    if (dma->SG_length) {
-		pci_unmap_sg(itv->pdev, dma->SGlist, dma->page_count, PCI_DMA_TODEVICE);
+		dma_unmap_sg(&itv->pdev->dev, dma->SGlist, dma->page_count,
+			     DMA_TO_DEVICE);
    	dma->SG_length = 0;
    }
    /* sync DMA */
@@ -175,13 +179,14 @@ void ivtv_udma_free(struct ivtv *itv)
/* Unmap SG Array */
    if (itv->udma.SG_handle) {
-		pci_unmap_single(itv->pdev, itv->udma.SG_handle,
-			 sizeof(itv->udma.SGarray), PCI_DMA_TODEVICE);
+		dma_unmap_single(&itv->pdev->dev, itv->udma.SG_handle,
+				 sizeof(itv->udma.SGarray), DMA_TO_DEVICE);
    }
/* Unmap Scatterlist */
    if (itv->udma.SG_length) {
-		pci_unmap_sg(itv->pdev, itv->udma.SGlist, itv->udma.page_count, PCI_DMA_TODEVICE);
+		dma_unmap_sg(&itv->pdev->dev, itv->udma.SGlist,
+			     itv->udma.page_count, DMA_TO_DEVICE);
    }
for (i = 0; i < IVTV_DMA_SG_OSD_ENT; i++) {
--- a/drivers/media/pci/ivtv/ivtv-yuv.c
+++ b/drivers/media/pci/ivtv/ivtv-yuv.c
@@ -113,7 +113,8 @@ static int ivtv_yuv_prep_user_dma(struct
    	dma->page_count = 0;
    	return -ENOMEM;
    }
-	dma->SG_length = pci_map_sg(itv->pdev, dma->SGlist, dma->page_count, PCI_DMA_TODEVICE);
+	dma->SG_length = dma_map_sg(&itv->pdev->dev, dma->SGlist,
+				    dma->page_count, DMA_TO_DEVICE);
/* Fill SG Array with new values */
    ivtv_udma_fill_sg_array(dma, y_buffer_offset, uv_buffer_offset, y_size);
@@ -920,7 +921,9 @@ static void ivtv_yuv_init(struct ivtv *i
    /* We need a buffer for blanking when Y plane is offset - non-fatal if we can't get one */
    yi->blanking_ptr = kzalloc(720 * 16, GFP_ATOMIC|__GFP_NOWARN);
    if (yi->blanking_ptr) {
-		yi->blanking_dmaptr = pci_map_single(itv->pdev, yi->blanking_ptr, 720*16, PCI_DMA_TODEVICE);
+		yi->blanking_dmaptr = dma_map_single(&itv->pdev->dev,
+						     yi->blanking_ptr,
+						     720 * 16, DMA_TO_DEVICE);
    } else {
    	yi->blanking_dmaptr = 0;
    	IVTV_DEBUG_WARN("Failed to allocate yuv blanking buffer\n");
@@ -1264,7 +1267,8 @@ void ivtv_yuv_close(struct ivtv *itv)
    if (yi->blanking_ptr) {
    	kfree(yi->blanking_ptr);
    	yi->blanking_ptr = NULL;
-		pci_unmap_single(itv->pdev, yi->blanking_dmaptr, 720*16, PCI_DMA_TODEVICE);
+		dma_unmap_single(&itv->pdev->dev, yi->blanking_dmaptr,
+				 720 * 16, DMA_TO_DEVICE);
    }
/* Invalidate the old dimension information */

    

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[PATCH 5.15 270/276] media: pci/ivtv: switch from pci_ to dma_ API