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media: test-drivers: vivid: Increase max supported buffers for capture queues

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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>
This commit is contained in:
Benjamin Gaignard 2023-11-09 17:35:01 +01:00 committed by Mauro Carvalho Chehab
parent d055a76c00
commit cea70ed416
1 changed files with 14 additions and 0 deletions
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14
drivers/media/test-drivers/vivid/vivid-core.c
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@ -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;