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| author | Benjamin Gaignard <benjamin.gaignard@collabora.com> | 2023-11-09 17:35:01 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2023-11-23 12:41:51 +0100 |
| commit | cea70ed416b428f8214be196d62cc7ffaa11f1b8 (patch) | |
| tree | 40c1be98a12cc265970cb0122fae7326b8c39649 /drivers/media/test-drivers | |
| parent | d055a76c006540defd4eb80dcdea217cee0a141a (diff) | |
| download | linux-cea70ed416b428f8214be196d62cc7ffaa11f1b8.tar.gz linux-cea70ed416b428f8214be196d62cc7ffaa11f1b8.tar.bz2 linux-cea70ed416b428f8214be196d62cc7ffaa11f1b8.zip | |
media: test-drivers: vivid: Increase max supported buffers for capture queues
Change the maximum number of buffers of some capture queues in order
to test max_num_buffers field.
Allow to allocate up to:
- 64 buffers for video capture queue.
- 1024 buffers for sdr capture queue.
- 32768 buffers for vbi capture queue.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com>
Reviewed-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/test-drivers')
| -rw-r--r-- | drivers/media/test-drivers/vivid/vivid-core.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/media/test-drivers/vivid/vivid-core.c b/drivers/media/test-drivers/vivid/vivid-core.c index 394c9f81ea72..353f035fcd19 100644 --- a/drivers/media/test-drivers/vivid/vivid-core.c +++ b/drivers/media/test-drivers/vivid/vivid-core.c @@ -876,6 +876,20 @@ static int vivid_create_queue(struct vivid_dev *dev, q->type = buf_type; q->io_modes = VB2_MMAP | VB2_DMABUF; q->io_modes |= V4L2_TYPE_IS_OUTPUT(buf_type) ? VB2_WRITE : VB2_READ; + + /* + * The maximum number of buffers is 32768 if PAGE_SHIFT == 12, + * see also MAX_BUFFER_INDEX in videobuf2-core.c. It will be less if + * PAGE_SHIFT > 12, but then max_num_buffers will be clamped by + * videobuf2-core.c to MAX_BUFFER_INDEX. + */ + if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE) + q->max_num_buffers = 64; + if (buf_type == V4L2_BUF_TYPE_SDR_CAPTURE) + q->max_num_buffers = 1024; + if (buf_type == V4L2_BUF_TYPE_VBI_CAPTURE) + q->max_num_buffers = 32768; + if (allocators[dev->inst] != 1) q->io_modes |= VB2_USERPTR; q->drv_priv = dev; |