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Message-Id: <20240318134856.110687-1-benjamin.gaignard@collabora.com>
Date: Mon, 18 Mar 2024 14:48:56 +0100
From: Benjamin Gaignard <benjamin.gaignard@...labora.com>
To: mchehab@...nel.org,
tfiga@...omium.org,
m.szyprowski@...sung.com,
ezequiel@...guardiasur.com.ar,
p.zabel@...gutronix.de,
hverkuil-cisco@...all.nl,
nicolas@...fresne.ca
Cc: linux-media@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-rockchip@...ts.infradead.org,
kernel@...labora.com,
Benjamin Gaignard <benjamin.gaignard@...labora.com>
Subject: [PATCH v21.1 3/9] media: test-drivers: Set REQBUFS minimum number of buffers
Instead of using 'min_queued_buffers' field to specify the
minimum number of buffers to be allocated when calling REQBUF
use 'min_reqbufs_allocation' field which is dedicated to this
purpose.
Change the minimum requested buffers to 2 for vivid-meta-out
and vivid-touch-cap drivers when creating the queues.
That allows to remove code which prohibe to allocate only
one buffer in their respective queue setup functions.
While at it rename vivid_create_queue() parameter.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
---
version 21.1:
- Change min requested buffers for vivid-meta-out and vivid-touch-cap.
- Remove useless call in their queue setup functions.
drivers/media/test-drivers/vimc/vimc-capture.c | 2 +-
drivers/media/test-drivers/vivid/vivid-core.c | 8 ++++----
drivers/media/test-drivers/vivid/vivid-meta-out.c | 4 ----
drivers/media/test-drivers/vivid/vivid-touch-cap.c | 4 ----
4 files changed, 5 insertions(+), 13 deletions(-)
diff --git a/drivers/media/test-drivers/vimc/vimc-capture.c b/drivers/media/test-drivers/vimc/vimc-capture.c
index 2a2d19d23bab..97693561f1e4 100644
--- a/drivers/media/test-drivers/vimc/vimc-capture.c
+++ b/drivers/media/test-drivers/vimc/vimc-capture.c
@@ -432,7 +432,7 @@ static struct vimc_ent_device *vimc_capture_add(struct vimc_device *vimc,
q->mem_ops = vimc_allocator == VIMC_ALLOCATOR_DMA_CONTIG
? &vb2_dma_contig_memops : &vb2_vmalloc_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- q->min_queued_buffers = 2;
+ q->min_reqbufs_allocation = 2;
q->lock = &vcapture->lock;
q->dev = v4l2_dev->dev;
diff --git a/drivers/media/test-drivers/vivid/vivid-core.c b/drivers/media/test-drivers/vivid/vivid-core.c
index 159c72cbb5bf..e2d4f10003f3 100644
--- a/drivers/media/test-drivers/vivid/vivid-core.c
+++ b/drivers/media/test-drivers/vivid/vivid-core.c
@@ -861,7 +861,7 @@ static const struct media_device_ops vivid_media_ops = {
static int vivid_create_queue(struct vivid_dev *dev,
struct vb2_queue *q,
u32 buf_type,
- unsigned int min_queued_buffers,
+ unsigned int min_reqbufs_allocation,
const struct vb2_ops *ops)
{
if (buf_type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->multiplanar)
@@ -898,7 +898,7 @@ static int vivid_create_queue(struct vivid_dev *dev,
q->mem_ops = allocators[dev->inst] == 1 ? &vb2_dma_contig_memops :
&vb2_vmalloc_memops;
q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
- q->min_queued_buffers = supports_requests[dev->inst] ? 0 : min_queued_buffers;
+ q->min_reqbufs_allocation = min_reqbufs_allocation;
q->lock = &dev->mutex;
q->dev = dev->v4l2_dev.dev;
q->supports_requests = supports_requests[dev->inst];
@@ -1364,7 +1364,7 @@ static int vivid_create_queues(struct vivid_dev *dev)
if (dev->has_meta_out) {
/* initialize meta_out queue */
ret = vivid_create_queue(dev, &dev->vb_meta_out_q,
- V4L2_BUF_TYPE_META_OUTPUT, 1,
+ V4L2_BUF_TYPE_META_OUTPUT, 2,
&vivid_meta_out_qops);
if (ret)
return ret;
@@ -1373,7 +1373,7 @@ static int vivid_create_queues(struct vivid_dev *dev)
if (dev->has_touch_cap) {
/* initialize touch_cap queue */
ret = vivid_create_queue(dev, &dev->vb_touch_cap_q,
- V4L2_BUF_TYPE_VIDEO_CAPTURE, 1,
+ V4L2_BUF_TYPE_VIDEO_CAPTURE, 2,
&vivid_touch_cap_qops);
if (ret)
return ret;
diff --git a/drivers/media/test-drivers/vivid/vivid-meta-out.c b/drivers/media/test-drivers/vivid/vivid-meta-out.c
index 4a569a6e58be..82ab3b26914e 100644
--- a/drivers/media/test-drivers/vivid/vivid-meta-out.c
+++ b/drivers/media/test-drivers/vivid/vivid-meta-out.c
@@ -18,7 +18,6 @@ static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
- unsigned int q_num_bufs = vb2_get_num_buffers(vq);
unsigned int size = sizeof(struct vivid_meta_out_buf);
if (!vivid_is_webcam(dev))
@@ -31,9 +30,6 @@ static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
- if (q_num_bufs + *nbuffers < 2)
- *nbuffers = 2 - q_num_bufs;
-
*nplanes = 1;
return 0;
}
diff --git a/drivers/media/test-drivers/vivid/vivid-touch-cap.c b/drivers/media/test-drivers/vivid/vivid-touch-cap.c
index 4b3c6ea0afde..3888c21b4d0c 100644
--- a/drivers/media/test-drivers/vivid/vivid-touch-cap.c
+++ b/drivers/media/test-drivers/vivid/vivid-touch-cap.c
@@ -13,7 +13,6 @@ static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
struct device *alloc_devs[])
{
struct vivid_dev *dev = vb2_get_drv_priv(vq);
- unsigned int q_num_bufs = vb2_get_num_buffers(vq);
struct v4l2_pix_format *f = &dev->tch_format;
unsigned int size = f->sizeimage;
@@ -24,9 +23,6 @@ static int touch_cap_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers,
sizes[0] = size;
}
- if (q_num_bufs + *nbuffers < 2)
- *nbuffers = 2 - q_num_bufs;
-
*nplanes = 1;
return 0;
}
--
2.40.1
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