The fdinfo shows the number of buffers in each queue and the total amount of video buffer memory.
Signed-off-by: Detlev Casanova <[email protected]> --- drivers/media/platform/verisilicon/hantro.h | 1 + drivers/media/platform/verisilicon/hantro_drv.c | 15 +++++++++++++++ drivers/media/platform/verisilicon/hantro_v4l2.c | 10 +++++++++- 3 files changed, 25 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/verisilicon/hantro.h b/drivers/media/platform/verisilicon/hantro.h index d5cddc783688..9e9fc0658586 100644 --- a/drivers/media/platform/verisilicon/hantro.h +++ b/drivers/media/platform/verisilicon/hantro.h @@ -268,6 +268,7 @@ struct hantro_ctx { const struct hantro_codec_ops *codec_ops; struct hantro_postproc_ctx postproc; bool need_postproc; + u64 stats_buf_memory; /* Specific for particular codec modes. */ union { diff --git a/drivers/media/platform/verisilicon/hantro_drv.c b/drivers/media/platform/verisilicon/hantro_drv.c index 8dd26ca32459..86d316a8a3e8 100644 --- a/drivers/media/platform/verisilicon/hantro_drv.c +++ b/drivers/media/platform/verisilicon/hantro_drv.c @@ -17,6 +17,7 @@ #include <linux/platform_device.h> #include <linux/pm.h> #include <linux/pm_runtime.h> +#include <linux/seq_file.h> #include <linux/slab.h> #include <linux/videodev2.h> #include <linux/workqueue.h> @@ -711,6 +712,19 @@ static int hantro_release(struct file *filp) return 0; } +static void hantro_show_fdinfo(struct seq_file *m, struct file *filp) +{ + struct hantro_ctx *ctx = + container_of(filp->private_data, struct hantro_ctx, fh); + + struct vb2_queue *src_q = v4l2_m2m_get_src_vq(ctx->fh.m2m_ctx); + struct vb2_queue *dst_q = v4l2_m2m_get_dst_vq(ctx->fh.m2m_ctx); + + seq_printf(m, "src-queued-count: %04u\n", src_q->queued_count); + seq_printf(m, "dst-queued-count: %04u\n", dst_q->queued_count); + seq_printf(m, "buf-size: %llu\n", ctx->stats_buf_memory); +} + static const struct v4l2_file_operations hantro_fops = { .owner = THIS_MODULE, .open = hantro_open, @@ -718,6 +732,7 @@ static const struct v4l2_file_operations hantro_fops = { .poll = v4l2_m2m_fop_poll, .unlocked_ioctl = video_ioctl2, .mmap = v4l2_m2m_fop_mmap, + .show_fdinfo = hantro_show_fdinfo, }; static const struct of_device_id of_hantro_match[] = { diff --git a/drivers/media/platform/verisilicon/hantro_v4l2.c b/drivers/media/platform/verisilicon/hantro_v4l2.c index fcf3bd9bcda2..6d129613ea3d 100644 --- a/drivers/media/platform/verisilicon/hantro_v4l2.c +++ b/drivers/media/platform/verisilicon/hantro_v4l2.c @@ -820,18 +820,26 @@ hantro_queue_setup(struct vb2_queue *vq, unsigned int *num_buffers, return -EINVAL; } + ctx->stats_buf_memory = 0; + if (*num_planes) { if (*num_planes != pixfmt->num_planes) return -EINVAL; - for (i = 0; i < pixfmt->num_planes; ++i) + for (i = 0; i < pixfmt->num_planes; ++i) { if (sizes[i] < pixfmt->plane_fmt[i].sizeimage) return -EINVAL; + ctx->stats_buf_memory += pixfmt->plane_fmt[i].sizeimage; + } + + ctx->stats_buf_memory *= *num_buffers; + return 0; } *num_planes = pixfmt->num_planes; for (i = 0; i < pixfmt->num_planes; ++i) sizes[i] = pixfmt->plane_fmt[i].sizeimage; + return 0; } -- 2.53.0
