[PATCH v0 1/3] media: chips-media: wave5: Improve performance of decoder

From: Jackson.lee
Date: Tue Mar 18 2025 - 21:46:09 EST

From: Jackson Lee <jackson.lee@xxxxxxxxxxxxxxx>

The existing way for decoding frames was to wait until each frame was
decoded after feeding a bitstream. As a result, performance was low
and Wave5 could not achieve max pixel processing rate.

Update driver to use an asynchronous approach for decoding and feeding a
bitstream in order to achieve full capabilities of the device.

Signed-off-by: Jackson Lee <jackson.lee@xxxxxxxxxxxxxxx>
Signed-off-by: Nas Chung <nas.chung@xxxxxxxxxxxxxxx>
---
.../chips-media/wave5/wave5-vpu-dec.c | 344 ++++++++++--------
.../chips-media/wave5/wave5-vpu-enc.c | 3 -
.../platform/chips-media/wave5/wave5-vpuapi.c | 25 +-
.../platform/chips-media/wave5/wave5-vpuapi.h | 5 +-
4 files changed, 211 insertions(+), 166 deletions(-)

diff --git a/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c b/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
index fd71f0c43ac3..5975cafefb6c 100644
--- a/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
+++ b/drivers/media/platform/chips-media/wave5/wave5-vpu-dec.c
@@ -230,12 +230,147 @@ static int start_decode(struct vpu_instance *inst, u32 *fail_res)
switch_state(inst, VPU_INST_STATE_STOP);

dev_dbg(inst->dev->dev, "%s: pic run failed / finish job", __func__);
- v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
}

return ret;
}

+static int write_to_ringbuffer(struct vpu_instance *inst, void *buffer, size_t buffer_size,
+ struct vpu_buf *ring_buffer, dma_addr_t wr_ptr)
+{
+ size_t size;
+ size_t offset = wr_ptr - ring_buffer->daddr;
+ int ret;
+
+ if (wr_ptr + buffer_size > ring_buffer->daddr + ring_buffer->size) {
+ size = ring_buffer->daddr + ring_buffer->size - wr_ptr;
+ ret = wave5_vdi_write_memory(inst->dev, ring_buffer, offset, (u8 *)buffer, size);
+ if (ret < 0)
+ return ret;
+
+ ret = wave5_vdi_write_memory(inst->dev, ring_buffer, 0, (u8 *)buffer + size,
+ buffer_size - size);
+ if (ret < 0)
+ return ret;
+ } else {
+ ret = wave5_vdi_write_memory(inst->dev, ring_buffer, offset, (u8 *)buffer,
+ buffer_size);
+ if (ret < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int fill_ringbuffer(struct vpu_instance *inst)
+{
+ struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+ struct vpu_src_buffer *vpu_buf;
+ int ret;
+
+ if (m2m_ctx->last_src_buf) {
+ struct vpu_src_buffer *vpu_buf = wave5_to_vpu_src_buf(m2m_ctx->last_src_buf);
+
+ if (vpu_buf->consumed) {
+ dev_dbg(inst->dev->dev, "last src buffer already written\n");
+ return 0;
+ }
+ }
+
+ list_for_each_entry(vpu_buf, &inst->avail_src_bufs, list) {
+ struct vb2_v4l2_buffer *vbuf = &vpu_buf->v4l2_m2m_buf.vb;
+ struct vpu_buf *ring_buffer = &inst->bitstream_vbuf;
+ size_t src_size = vb2_get_plane_payload(&vbuf->vb2_buf, 0);
+ void *src_buf = vb2_plane_vaddr(&vbuf->vb2_buf, 0);
+ dma_addr_t rd_ptr = 0;
+ dma_addr_t wr_ptr = 0;
+ size_t remain_size = 0;
+
+ if (vpu_buf->consumed) {
+ dev_dbg(inst->dev->dev, "already copied src buf (%u) to the ring buffer\n",
+ vbuf->vb2_buf.index);
+ continue;
+ }
+
+ if (!src_buf) {
+ dev_dbg(inst->dev->dev,
+ "%s: Acquiring kernel pointer to src buf (%u), fail\n",
+ __func__, vbuf->vb2_buf.index);
+ break;
+ }
+
+ ret = wave5_vpu_dec_get_bitstream_buffer(inst, &rd_ptr, &wr_ptr, &remain_size);
+ if (ret) {
+ /* Unable to acquire the mutex */
+ dev_err(inst->dev->dev, "Getting the bitstream buffer, fail: %d\n",
+ ret);
+ return ret;
+ }
+
+ dev_dbg(inst->dev->dev, "%s: rd_ptr %pad wr_ptr %pad", __func__, &rd_ptr, &wr_ptr);
+
+ if (remain_size < src_size) {
+ dev_dbg(inst->dev->dev,
+ "%s: remaining size: %zu < source size: %zu for src buf (%u)\n",
+ __func__, remain_size, src_size, vbuf->vb2_buf.index);
+ break;
+ }
+
+ ret = write_to_ringbuffer(inst, src_buf, src_size, ring_buffer, wr_ptr);
+ if (ret) {
+ dev_err(inst->dev->dev, "Write src buf (%u) to ring buffer, fail: %d\n",
+ vbuf->vb2_buf.index, ret);
+ return ret;
+ }
+
+ ret = wave5_vpu_dec_update_bitstream_buffer(inst, src_size);
+ if (ret) {
+ dev_dbg(inst->dev->dev,
+ "update_bitstream_buffer fail: %d for src buf (%u)\n",
+ ret, vbuf->vb2_buf.index);
+ break;
+ }
+
+ vpu_buf->consumed = true;
+
+ /* Don't write buffers passed the last one while draining. */
+ if (v4l2_m2m_is_last_draining_src_buf(m2m_ctx, vbuf)) {
+ dev_dbg(inst->dev->dev, "last src buffer written to the ring buffer\n");
+ break;
+ }
+
+ inst->queuing_num++;
+ list_del_init(&vpu_buf->list);
+ break;
+ }
+
+ return ret;
+}
+
+static void wave5_vpu_dec_feed_remaining(struct vpu_instance *inst)
+{
+ int ret = 0;
+ struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
+ u32 fail_res = 0;
+
+ mutex_lock(&inst->feed_lock);
+ ret = fill_ringbuffer(inst);
+ mutex_unlock(&inst->feed_lock);
+ if (ret) {
+ dev_warn(inst->dev->dev, "Filling ring buffer failed\n");
+ return;
+ }
+
+ ret = start_decode(inst, &fail_res);
+ if (ret) {
+ dev_err(inst->dev->dev,
+ "Frame decoding on m2m context (%p), fail: %d (result: %d)\n",
+ m2m_ctx, ret, fail_res);
+ }
+
+ v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
+}
+
static void flag_last_buffer_done(struct vpu_instance *inst)
{
struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
@@ -347,7 +482,6 @@ static void wave5_vpu_dec_finish_decode(struct vpu_instance *inst)
struct vb2_v4l2_buffer *dec_buf = NULL;
struct vb2_v4l2_buffer *disp_buf = NULL;
struct vb2_queue *dst_vq = v4l2_m2m_get_dst_vq(m2m_ctx);
- struct queue_status_info q_status;

dev_dbg(inst->dev->dev, "%s: Fetch output info from firmware.", __func__);

@@ -441,20 +575,6 @@ static void wave5_vpu_dec_finish_decode(struct vpu_instance *inst)
}
spin_unlock_irqrestore(&inst->state_spinlock, flags);
}
-
- /*
- * During a resolution change and while draining, the firmware may flush
- * the reorder queue regardless of having a matching decoding operation
- * pending. Only terminate the job if there are no more IRQ coming.
- */
- wave5_vpu_dec_give_command(inst, DEC_GET_QUEUE_STATUS, &q_status);
- if (q_status.report_queue_count == 0 &&
- (q_status.instance_queue_count == 0 || dec_info.sequence_changed)) {
- dev_dbg(inst->dev->dev, "%s: finishing job.\n", __func__);
- pm_runtime_mark_last_busy(inst->dev->dev);
- pm_runtime_put_autosuspend(inst->dev->dev);
- v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
- }
}

static int wave5_vpu_dec_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
@@ -794,11 +914,21 @@ static int wave5_vpu_dec_stop(struct vpu_instance *inst)
}

if (inst->state != VPU_INST_STATE_NONE) {
+ struct vb2_v4l2_buffer *vbuf;
+ struct vpu_src_buffer *vpu_buf;
+
/*
* Temporarily release the state_spinlock so that subsequent
* calls do not block on a mutex while inside this spinlock.
*/
spin_unlock_irqrestore(&inst->state_spinlock, flags);
+ vbuf = v4l2_m2m_last_src_buf(m2m_ctx);
+ if (vbuf) {
+ vpu_buf = wave5_to_vpu_src_buf(vbuf);
+ if (!vpu_buf->consumed)
+ wave5_vpu_dec_feed_remaining(inst);
+ }
+
ret = wave5_vpu_dec_set_eos_on_firmware(inst);
if (ret)
return ret;
@@ -1116,115 +1246,6 @@ static int wave5_prepare_fb(struct vpu_instance *inst)
return 0;
}

-static int write_to_ringbuffer(struct vpu_instance *inst, void *buffer, size_t buffer_size,
- struct vpu_buf *ring_buffer, dma_addr_t wr_ptr)
-{
- size_t size;
- size_t offset = wr_ptr - ring_buffer->daddr;
- int ret;
-
- if (wr_ptr + buffer_size > ring_buffer->daddr + ring_buffer->size) {
- size = ring_buffer->daddr + ring_buffer->size - wr_ptr;
- ret = wave5_vdi_write_memory(inst->dev, ring_buffer, offset, (u8 *)buffer, size);
- if (ret < 0)
- return ret;
-
- ret = wave5_vdi_write_memory(inst->dev, ring_buffer, 0, (u8 *)buffer + size,
- buffer_size - size);
- if (ret < 0)
- return ret;
- } else {
- ret = wave5_vdi_write_memory(inst->dev, ring_buffer, offset, (u8 *)buffer,
- buffer_size);
- if (ret < 0)
- return ret;
- }
-
- return 0;
-}
-
-static int fill_ringbuffer(struct vpu_instance *inst)
-{
- struct v4l2_m2m_ctx *m2m_ctx = inst->v4l2_fh.m2m_ctx;
- struct v4l2_m2m_buffer *buf, *n;
- int ret;
-
- if (m2m_ctx->last_src_buf) {
- struct vpu_src_buffer *vpu_buf = wave5_to_vpu_src_buf(m2m_ctx->last_src_buf);
-
- if (vpu_buf->consumed) {
- dev_dbg(inst->dev->dev, "last src buffer already written\n");
- return 0;
- }
- }
-
- v4l2_m2m_for_each_src_buf_safe(m2m_ctx, buf, n) {
- struct vb2_v4l2_buffer *vbuf = &buf->vb;
- struct vpu_src_buffer *vpu_buf = wave5_to_vpu_src_buf(vbuf);
- struct vpu_buf *ring_buffer = &inst->bitstream_vbuf;
- size_t src_size = vb2_get_plane_payload(&vbuf->vb2_buf, 0);
- void *src_buf = vb2_plane_vaddr(&vbuf->vb2_buf, 0);
- dma_addr_t rd_ptr = 0;
- dma_addr_t wr_ptr = 0;
- size_t remain_size = 0;
-
- if (vpu_buf->consumed) {
- dev_dbg(inst->dev->dev, "already copied src buf (%u) to the ring buffer\n",
- vbuf->vb2_buf.index);
- continue;
- }
-
- if (!src_buf) {
- dev_dbg(inst->dev->dev,
- "%s: Acquiring kernel pointer to src buf (%u), fail\n",
- __func__, vbuf->vb2_buf.index);
- break;
- }
-
- ret = wave5_vpu_dec_get_bitstream_buffer(inst, &rd_ptr, &wr_ptr, &remain_size);
- if (ret) {
- /* Unable to acquire the mutex */
- dev_err(inst->dev->dev, "Getting the bitstream buffer, fail: %d\n",
- ret);
- return ret;
- }
-
- dev_dbg(inst->dev->dev, "%s: rd_ptr %pad wr_ptr %pad", __func__, &rd_ptr, &wr_ptr);
-
- if (remain_size < src_size) {
- dev_dbg(inst->dev->dev,
- "%s: remaining size: %zu < source size: %zu for src buf (%u)\n",
- __func__, remain_size, src_size, vbuf->vb2_buf.index);
- break;
- }
-
- ret = write_to_ringbuffer(inst, src_buf, src_size, ring_buffer, wr_ptr);
- if (ret) {
- dev_err(inst->dev->dev, "Write src buf (%u) to ring buffer, fail: %d\n",
- vbuf->vb2_buf.index, ret);
- return ret;
- }
-
- ret = wave5_vpu_dec_update_bitstream_buffer(inst, src_size);
- if (ret) {
- dev_dbg(inst->dev->dev,
- "update_bitstream_buffer fail: %d for src buf (%u)\n",
- ret, vbuf->vb2_buf.index);
- break;
- }
-
- vpu_buf->consumed = true;
-
- /* Don't write buffers passed the last one while draining. */
- if (v4l2_m2m_is_last_draining_src_buf(m2m_ctx, vbuf)) {
- dev_dbg(inst->dev->dev, "last src buffer written to the ring buffer\n");
- break;
- }
- }
-
- return 0;
-}
-
static void wave5_vpu_dec_buf_queue_src(struct vb2_buffer *vb)
{
struct vpu_instance *inst = vb2_get_drv_priv(vb->vb2_queue);
@@ -1236,6 +1257,11 @@ static void wave5_vpu_dec_buf_queue_src(struct vb2_buffer *vb)
vbuf->sequence = inst->queued_src_buf_num++;

v4l2_m2m_buf_queue(m2m_ctx, vbuf);
+
+ INIT_LIST_HEAD(&vpu_buf->list);
+ mutex_lock(&inst->feed_lock);
+ list_add_tail(&vpu_buf->list, &inst->avail_src_bufs);
+ mutex_unlock(&inst->feed_lock);
}

static void wave5_vpu_dec_buf_queue_dst(struct vb2_buffer *vb)
@@ -1362,7 +1388,6 @@ static int wave5_vpu_dec_start_streaming(struct vb2_queue *q, unsigned int count
goto return_buffers;
}
}
-
}
pm_runtime_mark_last_busy(inst->dev->dev);
pm_runtime_put_autosuspend(inst->dev->dev);
@@ -1385,6 +1410,13 @@ static int streamoff_output(struct vb2_queue *q)
dma_addr_t new_rd_ptr;
struct dec_output_info dec_info;
unsigned int i;
+ struct vpu_src_buffer *vpu_buf, *tmp;
+
+ inst->retry = false;
+ inst->queuing_num = 0;
+
+ list_for_each_entry_safe(vpu_buf, tmp, &inst->avail_src_bufs, list)
+ list_del_init(&vpu_buf->list);

for (i = 0; i < v4l2_m2m_num_dst_bufs_ready(m2m_ctx); i++) {
ret = wave5_vpu_dec_set_disp_flag(inst, i);
@@ -1481,10 +1513,8 @@ static void wave5_vpu_dec_stop_streaming(struct vb2_queue *q)

wave5_vpu_dec_give_command(inst, DEC_GET_QUEUE_STATUS, &q_status);

- if (q_status.report_queue_count == 0)
- break;
-
- if (wave5_vpu_wait_interrupt(inst, VPU_DEC_TIMEOUT) < 0)
+ if ((inst->state == VPU_INST_STATE_STOP || q_status.instance_queue_count == 0) &&
+ q_status.report_queue_count == 0)
break;

if (wave5_vpu_dec_get_output_info(inst, &dec_output_info))
@@ -1577,13 +1607,23 @@ static void wave5_vpu_dec_device_run(void *priv)
struct queue_status_info q_status;
u32 fail_res = 0;
int ret = 0;
+ unsigned long flags;

dev_dbg(inst->dev->dev, "%s: Fill the ring buffer with new bitstream data", __func__);
pm_runtime_resume_and_get(inst->dev->dev);
- ret = fill_ringbuffer(inst);
- if (ret) {
- dev_warn(inst->dev->dev, "Filling ring buffer failed\n");
- goto finish_job_and_return;
+ if (!inst->retry) {
+ mutex_lock(&inst->feed_lock);
+ ret = fill_ringbuffer(inst);
+ mutex_unlock(&inst->feed_lock);
+ if (ret < 0) {
+ dev_warn(inst->dev->dev, "Filling ring buffer failed\n");
+ goto finish_job_and_return;
+ } else if (!inst->eos &&
+ inst->queuing_num == 0 &&
+ inst->state == VPU_INST_STATE_PIC_RUN) {
+ dev_dbg(inst->dev->dev, "%s: no bitstream for feeding, so skip ", __func__);
+ goto finish_job_and_return;
+ }
}

switch (inst->state) {
@@ -1619,7 +1659,9 @@ static void wave5_vpu_dec_device_run(void *priv)
* we had a chance to switch, which leads to an invalid state
* change.
*/
+ spin_lock_irqsave(&inst->state_spinlock, flags);
switch_state(inst, VPU_INST_STATE_PIC_RUN);
+ spin_unlock_irqrestore(&inst->state_spinlock, flags);

/*
* During DRC, the picture decoding remains pending, so just leave the job
@@ -1634,12 +1676,14 @@ static void wave5_vpu_dec_device_run(void *priv)
ret = wave5_prepare_fb(inst);
if (ret) {
dev_warn(inst->dev->dev, "Framebuffer preparation, fail: %d\n", ret);
+ spin_lock_irqsave(&inst->state_spinlock, flags);
switch_state(inst, VPU_INST_STATE_STOP);
+ spin_unlock_irqrestore(&inst->state_spinlock, flags);
break;
}

if (q_status.instance_queue_count) {
- dev_dbg(inst->dev->dev, "%s: leave with active job", __func__);
+ v4l2_m2m_job_finish(inst->v4l2_m2m_dev, m2m_ctx);
return;
}

@@ -1650,14 +1694,22 @@ static void wave5_vpu_dec_device_run(void *priv)
dev_err(inst->dev->dev,
"Frame decoding on m2m context (%p), fail: %d (result: %d)\n",
m2m_ctx, ret, fail_res);
- break;
+ goto finish_job_and_return;
+ }
+
+ if (fail_res == WAVE5_SYSERR_QUEUEING_FAIL) {
+ inst->retry = true;
+ } else {
+ inst->retry = false;
+ if (!inst->eos)
+ inst->queuing_num--;
}
- /* Return so that we leave this job active */
- dev_dbg(inst->dev->dev, "%s: leave with active job", __func__);
- return;
- default:
- WARN(1, "Execution of a job in state %s illegal.\n", state_to_str(inst->state));
break;
+ default:
+ if (!v4l2_m2m_has_stopped(m2m_ctx))
+ WARN(1, "Execution of a job in state %s illegal.\n",
+ state_to_str(inst->state));
+ return;
}

finish_job_and_return:
@@ -1676,10 +1728,7 @@ static void wave5_vpu_dec_job_abort(void *priv)
if (ret)
return;

- ret = wave5_vpu_dec_set_eos_on_firmware(inst);
- if (ret)
- dev_warn(inst->dev->dev,
- "Setting EOS for the bitstream, fail: %d\n", ret);
+ v4l2_m2m_job_finish(inst->v4l2_m2m_dev, inst->v4l2_fh.m2m_ctx);
}

static int wave5_vpu_dec_job_ready(void *priv)
@@ -1755,6 +1804,8 @@ static int wave5_vpu_open_dec(struct file *filp)
inst->ops = &wave5_vpu_dec_inst_ops;

spin_lock_init(&inst->state_spinlock);
+ mutex_init(&inst->feed_lock);
+ INIT_LIST_HEAD(&inst->avail_src_bufs);

inst->codec_info = kzalloc(sizeof(*inst->codec_info), GFP_KERNEL);
if (!inst->codec_info)
@@ -1830,9 +1881,6 @@ static int wave5_vpu_open_dec(struct file *filp)
if (ret)
goto cleanup_inst;

- if (list_empty(&dev->instances))
- pm_runtime_use_autosuspend(inst->dev->dev);
-
list_add_tail(&inst->list, &dev->instances);

mutex_unlock(&dev->dev_lock);
diff --git a/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c b/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
index 1e5fc5f8b856..cf20f774ed1b 100644
--- a/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
+++ b/drivers/media/platform/chips-media/wave5/wave5-vpu-enc.c
@@ -1774,9 +1774,6 @@ static int wave5_vpu_open_enc(struct file *filp)
if (ret)
goto cleanup_inst;

- if (list_empty(&dev->instances))
- pm_runtime_use_autosuspend(inst->dev->dev);
-
list_add_tail(&inst->list, &dev->instances);

mutex_unlock(&dev->dev_lock);
diff --git a/drivers/media/platform/chips-media/wave5/wave5-vpuapi.c b/drivers/media/platform/chips-media/wave5/wave5-vpuapi.c
index e5e879a13e8b..c1737fac6edd 100644
--- a/drivers/media/platform/chips-media/wave5/wave5-vpuapi.c
+++ b/drivers/media/platform/chips-media/wave5/wave5-vpuapi.c
@@ -207,8 +207,6 @@ int wave5_vpu_dec_close(struct vpu_instance *inst, u32 *fail_res)
int retry = 0;
struct vpu_device *vpu_dev = inst->dev;
int i;
- int inst_count = 0;
- struct vpu_instance *inst_elm;

*fail_res = 0;
if (!inst->codec_info)
@@ -233,6 +231,16 @@ int wave5_vpu_dec_close(struct vpu_instance *inst, u32 *fail_res)
retry++ >= MAX_FIRMWARE_CALL_RETRY) {
ret = -ETIMEDOUT;
goto unlock_and_return;
+ } else if (*fail_res == WAVE5_SYSERR_VPU_STILL_RUNNING) {
+ struct dec_output_info dec_info;
+
+ mutex_unlock(&vpu_dev->hw_lock);
+ wave5_vpu_dec_get_output_info(inst, &dec_info);
+ ret = mutex_lock_interruptible(&vpu_dev->hw_lock);
+ if (ret) {
+ pm_runtime_put_sync(inst->dev->dev);
+ return ret;
+ }
}
} while (ret != 0);

@@ -249,11 +257,7 @@ int wave5_vpu_dec_close(struct vpu_instance *inst, u32 *fail_res)
}

wave5_vdi_free_dma_memory(vpu_dev, &p_dec_info->vb_task);
-
- list_for_each_entry(inst_elm, &vpu_dev->instances, list)
- inst_count++;
- if (inst_count == 1)
- pm_runtime_dont_use_autosuspend(vpu_dev->dev);
+ mutex_destroy(&inst->feed_lock);

unlock_and_return:
mutex_unlock(&vpu_dev->hw_lock);
@@ -720,8 +724,6 @@ int wave5_vpu_enc_close(struct vpu_instance *inst, u32 *fail_res)
int ret;
int retry = 0;
struct vpu_device *vpu_dev = inst->dev;
- int inst_count = 0;
- struct vpu_instance *inst_elm;

*fail_res = 0;
if (!inst->codec_info)
@@ -765,11 +767,6 @@ int wave5_vpu_enc_close(struct vpu_instance *inst, u32 *fail_res)

wave5_vdi_free_dma_memory(vpu_dev, &p_enc_info->vb_task);

- list_for_each_entry(inst_elm, &vpu_dev->instances, list)
- inst_count++;
- if (inst_count == 1)
- pm_runtime_dont_use_autosuspend(vpu_dev->dev);
-
mutex_unlock(&vpu_dev->hw_lock);
pm_runtime_put_sync(inst->dev->dev);

diff --git a/drivers/media/platform/chips-media/wave5/wave5-vpuapi.h b/drivers/media/platform/chips-media/wave5/wave5-vpuapi.h
index 45615c15beca..6ca1ddc67c64 100644
--- a/drivers/media/platform/chips-media/wave5/wave5-vpuapi.h
+++ b/drivers/media/platform/chips-media/wave5/wave5-vpuapi.h
@@ -163,7 +163,7 @@ enum set_param_option {

#define BUFFER_MARGIN 4096

-#define MAX_FIRMWARE_CALL_RETRY 10
+#define MAX_FIRMWARE_CALL_RETRY 30

#define VDI_LITTLE_ENDIAN 0x0

@@ -812,6 +812,9 @@ struct vpu_instance {
bool cbcr_interleave;
bool nv21;
bool eos;
+ bool retry;
+ int queuing_num;
+ struct mutex feed_lock; /* lock for feeding bitstream buffers */
struct vpu_buf bitstream_vbuf;
dma_addr_t last_rd_ptr;
size_t remaining_consumed_bytes;
--
2.43.0