[PATCH v2 16/21] staging: media: tegra-video: move syncpt init/free to a per-soc op

Luca Ceresoli
2022-11-28T15:28:04Z

tegra_channel_host1x_syncpt_init() gets the host1x syncpts needed for the
Tegra210 implementation, and tegra_channel_host1x_syncpts_free() puts
them.

Tegra20 needs to get and put a different syncpt. In preparation for adding
Tegra20 support, move these functions to new ops in the soc-specific
`struct tegra_vi_ops` .

No functional changes.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

---

No changes in v2
---
drivers/staging/media/tegra-video/tegra210.c | 52 ++++++++++++++++++++
drivers/staging/media/tegra-video/vi.c | 52 ++------------------
drivers/staging/media/tegra-video/vi.h | 5 ++
3 files changed, 60 insertions(+), 49 deletions(-)

diff --git a/drivers/staging/media/tegra-video/tegra210.c b/drivers/staging/media/tegra-video/tegra210.c
index 28d3d05c12c4..d47ba79bac75 100644
--- a/drivers/staging/media/tegra-video/tegra210.c
+++ b/drivers/staging/media/tegra-video/tegra210.c
@@ -179,6 +179,56 @@ static u32 vi_csi_read(struct tegra_vi_channel *chan, u8 portno,
/*
* Tegra210 VI channel capture operations
*/
+
+static int tegra210_channel_host1x_syncpt_init(struct tegra_vi_channel *chan)
+{
+ struct tegra_vi *vi = chan->vi;
+ unsigned long flags = HOST1X_SYNCPT_CLIENT_MANAGED;
+ struct host1x_syncpt *fs_sp;
+ struct host1x_syncpt *mw_sp;
+ int ret, i;
+
+ for (i = 0; i < chan->numgangports; i++) {
+ fs_sp = host1x_syncpt_request(&vi->client, flags);
+ if (!fs_sp) {
+ dev_err(vi->dev, "failed to request frame start syncpoint\n");
+ ret = -ENOMEM;
+ goto free_syncpts;
+ }
+
+ mw_sp = host1x_syncpt_request(&vi->client, flags);
+ if (!mw_sp) {
+ dev_err(vi->dev, "failed to request memory ack syncpoint\n");
+ host1x_syncpt_put(fs_sp);
+ ret = -ENOMEM;
+ goto free_syncpts;
+ }
+
+ chan->frame_start_sp[i] = fs_sp;
+ chan->mw_ack_sp[i] = mw_sp;
+ spin_lock_init(&chan->sp_incr_lock[i]);
+ }
+
+ return 0;
+
+free_syncpts:
+ for (i = 0; i < chan->numgangports; i++) {
+ host1x_syncpt_put(chan->mw_ack_sp[i]);
+ host1x_syncpt_put(chan->frame_start_sp[i]);
+ }
+ return ret;
+}
+
+static void tegra210_channel_host1x_syncpt_free(struct tegra_vi_channel *chan)
+{
+ int i;
+
+ for (i = 0; i < chan->numgangports; i++) {
+ host1x_syncpt_put(chan->mw_ack_sp[i]);
+ host1x_syncpt_put(chan->frame_start_sp[i]);
+ }
+}
+
static void tegra210_fmt_align(struct v4l2_pix_format *pix, unsigned int bpp)
{
unsigned int min_bpl;
@@ -758,6 +808,8 @@ static const struct tegra_video_format tegra210_video_formats[] = {

/* Tegra210 VI operations */
static const struct tegra_vi_ops tegra210_vi_ops = {
+ .channel_host1x_syncpt_init = tegra210_channel_host1x_syncpt_init,
+ .channel_host1x_syncpt_free = tegra210_channel_host1x_syncpt_free,
.vi_fmt_align = tegra210_fmt_align,
.vi_start_streaming = tegra210_vi_start_streaming,
.vi_stop_streaming = tegra210_vi_stop_streaming,
diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c
index d0c387873d4e..854ffb4b5617 100644
--- a/drivers/staging/media/tegra-video/vi.c
+++ b/drivers/staging/media/tegra-video/vi.c
@@ -973,21 +973,11 @@ static int tegra_channel_setup_ctrl_handler(struct tegra_vi_channel *chan)
return 0;
}

-static void tegra_channel_host1x_syncpts_free(struct tegra_vi_channel *chan)
-{
- int i;
-
- for (i = 0; i < chan->numgangports; i++) {
- host1x_syncpt_put(chan->mw_ack_sp[i]);
- host1x_syncpt_put(chan->frame_start_sp[i]);
- }
-}
-
static void tegra_channel_cleanup(struct tegra_vi_channel *chan)
{
v4l2_ctrl_handler_free(&chan->ctrl_handler);
media_entity_cleanup(&chan->video.entity);
- tegra_channel_host1x_syncpts_free(chan);
+ chan->vi->ops->channel_host1x_syncpt_free(chan);
mutex_destroy(&chan->video_lock);
}

@@ -1005,42 +995,6 @@ void tegra_channels_cleanup(struct tegra_vi *vi)
}
}

-static int tegra_channel_host1x_syncpt_init(struct tegra_vi_channel *chan)
-{
- struct tegra_vi *vi = chan->vi;
- unsigned long flags = HOST1X_SYNCPT_CLIENT_MANAGED;
- struct host1x_syncpt *fs_sp;
- struct host1x_syncpt *mw_sp;
- int ret, i;
-
- for (i = 0; i < chan->numgangports; i++) {
- fs_sp = host1x_syncpt_request(&vi->client, flags);
- if (!fs_sp) {
- dev_err(vi->dev, "failed to request frame start syncpoint\n");
- ret = -ENOMEM;
- goto free_syncpts;
- }
-
- mw_sp = host1x_syncpt_request(&vi->client, flags);
- if (!mw_sp) {
- dev_err(vi->dev, "failed to request memory ack syncpoint\n");
- host1x_syncpt_put(fs_sp);
- ret = -ENOMEM;
- goto free_syncpts;
- }
-
- chan->frame_start_sp[i] = fs_sp;
- chan->mw_ack_sp[i] = mw_sp;
- spin_lock_init(&chan->sp_incr_lock[i]);
- }
-
- return 0;
-
-free_syncpts:
- tegra_channel_host1x_syncpts_free(chan);
- return ret;
-}
-
static int tegra_channel_init(struct tegra_vi_channel *chan)
{
struct tegra_vi *vi = chan->vi;
@@ -1066,7 +1020,7 @@ static int tegra_channel_init(struct tegra_vi_channel *chan)
chan->format.sizeimage = chan->format.bytesperline * TEGRA_DEF_HEIGHT;
vi->ops->vi_fmt_align(&chan->format, chan->fmtinfo->bpp);

- ret = tegra_channel_host1x_syncpt_init(chan);
+ ret = vi->ops->channel_host1x_syncpt_init(chan);
if (ret)
return ret;

@@ -1129,7 +1083,7 @@ static int tegra_channel_init(struct tegra_vi_channel *chan)
cleanup_media:
media_entity_cleanup(&chan->video.entity);
free_syncpts:
- tegra_channel_host1x_syncpts_free(chan);
+ vi->ops->channel_host1x_syncpt_free(chan);
return ret;
}

diff --git a/drivers/staging/media/tegra-video/vi.h b/drivers/staging/media/tegra-video/vi.h
index 851c4f3fcb91..8fadca33bcc9 100644
--- a/drivers/staging/media/tegra-video/vi.h
+++ b/drivers/staging/media/tegra-video/vi.h
@@ -38,10 +38,13 @@ enum tegra_vi_pg_mode {
};

struct tegra_vi;
+struct tegra_vi_channel;

/**
* struct tegra_vi_ops - Tegra VI operations
* @vi_enable: soc-specific operations needed to enable/disable the VI peripheral
+ * @channel_host1x_syncpt_init: initialize synchronization points
+ * @channel_host1x_syncpt_free: free all synchronization points
* @vi_fmt_align: modify `pix` to fit the hardware alignment
* requirements and fill image geometry
* @vi_start_streaming: starts media pipeline, subdevice streaming, sets up
@@ -52,6 +55,8 @@ struct tegra_vi;
*/
struct tegra_vi_ops {
int (*vi_enable)(struct tegra_vi *vi, bool on);
+ int (*channel_host1x_syncpt_init)(struct tegra_vi_channel *chan);
+ void (*channel_host1x_syncpt_free)(struct tegra_vi_channel *chan);
void (*vi_fmt_align)(struct v4l2_pix_format *pix, unsigned int bpp);
int (*vi_start_streaming)(struct vb2_queue *vq, u32 count);
void (*vi_stop_streaming)(struct vb2_queue *vq);
--
2.34.1