diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2014-11-18 09:51:01 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2014-11-25 08:55:32 -0200 |
| commit | 0c3a14c177aa85afb991e7c2be3921aa9a52a893 (patch) | |
| tree | de833b66ee640393292bc404e16c8f43a49ae89c /drivers/media/pci/tw68 | |
| parent | e5ae8fa739f8a1d5c292c5b13fa33ac64166e5a0 (diff) | |
[media] vb2-dma-sg: add allocation context to dma-sg
Require that dma-sg also uses an allocation context. This is in preparation
for adding prepare/finish memops to sync the memory between DMA and CPU.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/pci/tw68')
| -rw-r--r-- | drivers/media/pci/tw68/tw68-core.c | 15 | ||||
| -rw-r--r-- | drivers/media/pci/tw68/tw68-video.c | 1 | ||||
| -rw-r--r-- | drivers/media/pci/tw68/tw68.h | 1 |
3 files changed, 14 insertions, 3 deletions
diff --git a/drivers/media/pci/tw68/tw68-core.c b/drivers/media/pci/tw68/tw68-core.c index 63f0b64057cb..c135165a8b26 100644 --- a/drivers/media/pci/tw68/tw68-core.c +++ b/drivers/media/pci/tw68/tw68-core.c @@ -304,13 +304,19 @@ static int tw68_initdev(struct pci_dev *pci_dev, /* Then do any initialisation wanted before interrupts are on */ tw68_hw_init1(dev); + dev->alloc_ctx = vb2_dma_sg_init_ctx(&pci_dev->dev); + if (IS_ERR(dev->alloc_ctx)) { + err = PTR_ERR(dev->alloc_ctx); + goto fail3; + } + /* get irq */ err = devm_request_irq(&pci_dev->dev, pci_dev->irq, tw68_irq, IRQF_SHARED, dev->name, dev); if (err < 0) { pr_err("%s: can't get IRQ %d\n", dev->name, pci_dev->irq); - goto fail3; + goto fail4; } /* @@ -324,7 +330,7 @@ static int tw68_initdev(struct pci_dev *pci_dev, if (err < 0) { pr_err("%s: can't register video device\n", dev->name); - goto fail4; + goto fail5; } tw_setl(TW68_INTMASK, dev->pci_irqmask); @@ -333,8 +339,10 @@ static int tw68_initdev(struct pci_dev *pci_dev, return 0; -fail4: +fail5: video_unregister_device(&dev->vdev); +fail4: + vb2_dma_sg_cleanup_ctx(dev->alloc_ctx); fail3: iounmap(dev->lmmio); fail2: @@ -358,6 +366,7 @@ static void tw68_finidev(struct pci_dev *pci_dev) /* unregister */ video_unregister_device(&dev->vdev); v4l2_ctrl_handler_free(&dev->hdl); + vb2_dma_sg_cleanup_ctx(dev->alloc_ctx); /* release resources */ iounmap(dev->lmmio); diff --git a/drivers/media/pci/tw68/tw68-video.c b/drivers/media/pci/tw68/tw68-video.c index 5c94ac7c88d9..50dcce6251f6 100644 --- a/drivers/media/pci/tw68/tw68-video.c +++ b/drivers/media/pci/tw68/tw68-video.c @@ -384,6 +384,7 @@ static int tw68_queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt, unsigned tot_bufs = q->num_buffers + *num_buffers; sizes[0] = (dev->fmt->depth * dev->width * dev->height) >> 3; + alloc_ctxs[0] = dev->alloc_ctx; /* * We allow create_bufs, but only if the sizeimage is the same as the * current sizeimage. The tw68_buffer_count calculation becomes quite diff --git a/drivers/media/pci/tw68/tw68.h b/drivers/media/pci/tw68/tw68.h index 2c8abe26b13b..7a7501bd165f 100644 --- a/drivers/media/pci/tw68/tw68.h +++ b/drivers/media/pci/tw68/tw68.h @@ -181,6 +181,7 @@ struct tw68_dev { unsigned field; struct vb2_queue vidq; struct list_head active; + void *alloc_ctx; /* various v4l controls */ const struct tw68_tvnorm *tvnorm; /* video */ |