[PATCH V6, 4/5] media: mtk-jpegenc: add jpeg encode worker interface
kyrie.wu
kyrie.wu at mediatek.com
Thu Dec 2 19:13:49 PST 2021
Add jpeg encoding worker to ensure that two HWs
run in parallel in MT8195.
Signed-off-by: kyrie.wu <kyrie.wu at mediatek.com>
---
V6: no change
---
drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c | 180 +++++++++++++++++++---
drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h | 11 ++
drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c | 17 ++
3 files changed, 188 insertions(+), 20 deletions(-)
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
index da7eb84..80a6c1a 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.c
@@ -110,6 +110,9 @@ struct mtk_jpeg_src_buf {
struct vb2_v4l2_buffer b;
struct list_head list;
struct mtk_jpeg_dec_param dec_param;
+
+ struct mtk_jpeg_ctx *curr_ctx;
+ u32 frame_num;
};
static int debug;
@@ -908,38 +911,148 @@ static int mtk_jpeg_set_dec_dst(struct mtk_jpeg_ctx *ctx,
return 0;
}
-static void mtk_jpeg_enc_device_run(void *priv)
+static int mtk_jpegenc_select_hw(struct mtk_jpeg_ctx *ctx)
{
- struct mtk_jpeg_ctx *ctx = priv;
+ struct mtk_jpegenc_comp_dev *comp_jpeg;
struct mtk_jpeg_dev *jpeg = ctx->jpeg;
- struct vb2_v4l2_buffer *src_buf, *dst_buf;
+ unsigned long flags;
+ int hw_id = -1;
+ int i;
+
+ spin_lock_irqsave(&jpeg->hw_lock, flags);
+ for (i = 0; i < MTK_JPEGENC_HW_MAX; i++) {
+ comp_jpeg = jpeg->enc_hw_dev[i];
+ if (comp_jpeg->hw_state == MTK_JPEG_HW_IDLE) {
+ hw_id = i;
+ comp_jpeg->hw_state = MTK_JPEG_HW_BUSY;
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&jpeg->hw_lock, flags);
+
+ return hw_id;
+}
+
+static int mtk_jpegenc_set_hw_param(struct mtk_jpeg_ctx *ctx,
+ int hw_id,
+ struct vb2_v4l2_buffer *src_buf,
+ struct vb2_v4l2_buffer *dst_buf)
+{
+ struct mtk_jpegenc_comp_dev *jpeg = ctx->jpeg->enc_hw_dev[hw_id];
+
+ jpeg->hw_param.curr_ctx = ctx;
+ jpeg->hw_param.src_buffer = src_buf;
+ jpeg->hw_param.dst_buffer = dst_buf;
+
+ return 0;
+}
+
+static int mtk_jpegenc_deselect_hw(struct mtk_jpeg_dev *jpeg,
+ int hw_id)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&jpeg->hw_lock, flags);
+ jpeg->enc_hw_dev[hw_id]->hw_state = MTK_JPEG_HW_IDLE;
+ spin_unlock_irqrestore(&jpeg->hw_lock, flags);
+
+ return 0;
+}
+
+static void mtk_jpegenc_worker(struct work_struct *work)
+{
+ struct mtk_jpegenc_comp_dev *comp_jpeg[MTK_JPEGENC_HW_MAX];
enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
+ struct mtk_jpeg_src_buf *jpeg_src_buf, *jpeg_dst_buf;
+ struct vb2_v4l2_buffer *src_buf, *dst_buf;
+ atomic_t *hw_rdy[MTK_JPEGENC_HW_MAX];
+ struct clk *jpegenc_clk;
+ int ret, i, hw_id = 0;
unsigned long flags;
- int ret;
+ struct mtk_jpeg_ctx *ctx = container_of(work,
+ struct mtk_jpeg_ctx,
+ jpeg_work);
+ struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+
+ for (i = 0; i < MTK_JPEGENC_HW_MAX; i++) {
+ comp_jpeg[i] = jpeg->enc_hw_dev[i];
+ hw_rdy[i] = &comp_jpeg[i]->hw_rdy;
+ }
+
+retry_select:
+ hw_id = mtk_jpegenc_select_hw(ctx);
+ if (hw_id < 0) {
+ ret = wait_event_interruptible(jpeg->enc_hw_wq,
+ (atomic_read(hw_rdy[0]) ||
+ atomic_read(hw_rdy[1])) > 0);
+ if (ret != 0) {
+ dev_err(jpeg->dev, "%s : %d, all HW are busy\n",
+ __func__, __LINE__);
+ v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+ return;
+ }
+
+ goto retry_select;
+ }
+
+ atomic_dec(&comp_jpeg[hw_id]->hw_rdy);
src_buf = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+ if (!src_buf) {
+ dev_err(jpeg->dev, "%s : %d, get src_buf fail !!!\n",
+ __func__, __LINE__);
+ goto getbuf_fail;
+ }
+
dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
+ if (!dst_buf) {
+ pr_info("%s : %d, get dst_buf fail !!!\n",
+ __func__, __LINE__);
+ goto getbuf_fail;
+ }
- ret = pm_runtime_resume_and_get(jpeg->dev);
- if (ret < 0)
- goto enc_end;
+ jpeg_src_buf = mtk_jpeg_vb2_to_srcbuf(&src_buf->vb2_buf);
+ jpeg_dst_buf = mtk_jpeg_vb2_to_srcbuf(&dst_buf->vb2_buf);
+ jpeg_src_buf->curr_ctx = ctx;
+ jpeg_src_buf->frame_num = ctx->total_frame_num;
+ jpeg_dst_buf->curr_ctx = ctx;
+ jpeg_dst_buf->frame_num = ctx->total_frame_num;
+ ctx->total_frame_num++;
- schedule_delayed_work(&jpeg->job_timeout_work,
- msecs_to_jiffies(MTK_JPEG_HW_TIMEOUT_MSEC));
+ v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+ v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+ mtk_jpegenc_set_hw_param(ctx, hw_id, src_buf, dst_buf);
+ ret = pm_runtime_get_sync(comp_jpeg[hw_id]->pm.dev);
+ if (ret < 0) {
+ dev_err(jpeg->dev, "%s : %d, pm_runtime_get_sync fail !!!\n",
+ __func__, __LINE__);
+ goto enc_end;
+ }
- spin_lock_irqsave(&jpeg->hw_lock, flags);
+ jpegenc_clk = comp_jpeg[hw_id]->pm.venc_clk.clk_info->jpegenc_clk;
+ ret = clk_prepare_enable(jpegenc_clk);
+ if (ret) {
+ dev_err(jpeg->dev, "%s : %d, jpegenc clk_prepare_enable fail\n",
+ __func__, __LINE__);
+ goto enc_end;
+ }
- /*
- * Resetting the hardware every frame is to ensure that all the
- * registers are cleared. This is a hardware requirement.
- */
- mtk_jpeg_enc_reset(jpeg->reg_base);
+ schedule_delayed_work(&comp_jpeg[hw_id]->job_timeout_work,
+ msecs_to_jiffies(MTK_JPEG_HW_TIMEOUT_MSEC));
+
+ spin_lock_irqsave(&comp_jpeg[hw_id]->hw_lock, flags);
+ mtk_jpeg_enc_reset(comp_jpeg[hw_id]->reg_base);
+ mtk_jpeg_set_enc_dst(ctx,
+ comp_jpeg[hw_id]->reg_base,
+ &dst_buf->vb2_buf);
+ mtk_jpeg_set_enc_src(ctx,
+ comp_jpeg[hw_id]->reg_base,
+ &src_buf->vb2_buf);
+ mtk_jpeg_set_enc_params(ctx, comp_jpeg[hw_id]->reg_base);
+ mtk_jpeg_enc_start(comp_jpeg[hw_id]->reg_base);
+ v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
+ spin_unlock_irqrestore(&comp_jpeg[hw_id]->hw_lock, flags);
- mtk_jpeg_set_enc_src(ctx, jpeg->reg_base, &src_buf->vb2_buf);
- mtk_jpeg_set_enc_dst(ctx, jpeg->reg_base, &dst_buf->vb2_buf);
- mtk_jpeg_set_enc_params(ctx, jpeg->reg_base);
- mtk_jpeg_enc_start(jpeg->reg_base);
- spin_unlock_irqrestore(&jpeg->hw_lock, flags);
return;
enc_end:
@@ -947,9 +1060,20 @@ static void mtk_jpeg_enc_device_run(void *priv)
v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
v4l2_m2m_buf_done(src_buf, buf_state);
v4l2_m2m_buf_done(dst_buf, buf_state);
+getbuf_fail:
+ atomic_inc(&comp_jpeg[hw_id]->hw_rdy);
+ mtk_jpegenc_deselect_hw(jpeg, hw_id);
v4l2_m2m_job_finish(jpeg->m2m_dev, ctx->fh.m2m_ctx);
}
+static void mtk_jpeg_enc_device_run(void *priv)
+{
+ struct mtk_jpeg_ctx *ctx = priv;
+ struct mtk_jpeg_dev *jpeg = ctx->jpeg;
+
+ queue_work(jpeg->workqueue, &ctx->jpeg_work);
+}
+
static void mtk_jpeg_dec_device_run(void *priv)
{
struct mtk_jpeg_ctx *ctx = priv;
@@ -1217,6 +1341,9 @@ static int mtk_jpeg_open(struct file *file)
goto free;
}
+ if (jpeg->variant->is_encoder)
+ INIT_WORK(&ctx->jpeg_work, mtk_jpegenc_worker);
+
v4l2_fh_init(&ctx->fh, vfd);
file->private_data = &ctx->fh;
v4l2_fh_add(&ctx->fh);
@@ -1387,6 +1514,15 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
}
pm_runtime_enable(&pdev->dev);
+ } else {
+ init_waitqueue_head(&jpeg->enc_hw_wq);
+ jpeg->workqueue = alloc_ordered_workqueue(MTK_JPEG_NAME,
+ WQ_MEM_RECLAIM | WQ_FREEZABLE);
+ if (!jpeg->workqueue) {
+ dev_err(&pdev->dev, "Failed to create jpeg workqueue!\n");
+ ret = -EINVAL;
+ goto err_alloc_workqueue;
+ }
}
ret = v4l2_device_register(&pdev->dev, &jpeg->v4l2_dev);
@@ -1460,6 +1596,8 @@ static int mtk_jpeg_probe(struct platform_device *pdev)
err_clk_init:
+err_alloc_workqueue:
+
err_req_irq:
return ret;
@@ -1475,6 +1613,8 @@ static int mtk_jpeg_remove(struct platform_device *pdev)
v4l2_m2m_release(jpeg->m2m_dev);
v4l2_device_unregister(&jpeg->v4l2_dev);
mtk_jpeg_clk_release(jpeg);
+ flush_workqueue(jpeg->workqueue);
+ destroy_workqueue(jpeg->workqueue);
return 0;
}
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
index baab305..4c669af 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_core.h
@@ -75,6 +75,11 @@ struct mtk_jpeg_variant {
u32 cap_q_default_fourcc;
};
+enum mtk_jpeg_hw_state {
+ MTK_JPEG_HW_IDLE = 0,
+ MTK_JPEG_HW_BUSY = 1,
+};
+
struct mtk_jpeg_hw_param {
struct vb2_v4l2_buffer *src_buffer;
struct vb2_v4l2_buffer *dst_buffer;
@@ -130,6 +135,9 @@ struct mtk_jpegenc_comp_dev {
int jpegenc_irq;
struct delayed_work job_timeout_work;
struct mtk_jpeg_hw_param hw_param;
+ atomic_t hw_rdy;
+ enum mtk_jpeg_hw_state hw_state;
+ spinlock_t hw_lock;
};
/**
@@ -163,6 +171,7 @@ struct mtk_jpeg_dev {
void __iomem *reg_encbase[MTK_JPEGENC_HW_MAX];
struct mtk_jpegenc_comp_dev *enc_hw_dev[MTK_JPEGENC_HW_MAX];
+ wait_queue_head_t enc_hw_wq;
};
/**
@@ -221,6 +230,8 @@ struct mtk_jpeg_ctx {
u8 enc_quality;
u8 restart_interval;
struct v4l2_ctrl_handler ctrl_hdl;
+ struct work_struct jpeg_work;
+ u32 total_frame_num;
};
extern struct platform_driver mtk_jpegenc_hw_driver;
diff --git a/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
index e62b875..244f9f7 100644
--- a/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
+++ b/drivers/media/platform/mtk-jpeg/mtk_jpeg_enc_hw.c
@@ -190,6 +190,7 @@ static void mtk_jpegenc_timeout_work(struct work_struct *work)
struct mtk_jpegenc_comp_dev *cjpeg =
container_of(Pwork, struct mtk_jpegenc_comp_dev,
job_timeout_work);
+ struct mtk_jpeg_dev *master_jpeg = cjpeg->master_dev;
enum vb2_buffer_state buf_state = VB2_BUF_STATE_ERROR;
struct vb2_v4l2_buffer *src_buf;
@@ -198,6 +199,9 @@ static void mtk_jpegenc_timeout_work(struct work_struct *work)
mtk_jpeg_enc_reset(cjpeg->reg_base);
clk_disable_unprepare(cjpeg->pm.venc_clk.clk_info->jpegenc_clk);
pm_runtime_put(cjpeg->pm.dev);
+ cjpeg->hw_state = MTK_JPEG_HW_IDLE;
+ atomic_inc(&cjpeg->hw_rdy);
+ wake_up(&master_jpeg->enc_hw_wq);
v4l2_m2m_buf_done(src_buf, buf_state);
}
@@ -235,7 +239,17 @@ static irqreturn_t mtk_jpegenc_hw_irq_handler(int irq, void *priv)
v4l2_m2m_buf_done(src_buf, buf_state);
v4l2_m2m_buf_done(dst_buf, buf_state);
v4l2_m2m_job_finish(master_jpeg->m2m_dev, ctx->fh.m2m_ctx);
+ clk_disable_unprepare(jpeg->pm.venc_clk.clk_info->jpegenc_clk);
pm_runtime_put(ctx->jpeg->dev);
+ if (ctx->fh.m2m_ctx &&
+ (!list_empty(&ctx->fh.m2m_ctx->out_q_ctx.rdy_queue) ||
+ !list_empty(&ctx->fh.m2m_ctx->cap_q_ctx.rdy_queue))) {
+ queue_work(master_jpeg->workqueue, &ctx->jpeg_work);
+ }
+
+ jpeg->hw_state = MTK_JPEG_HW_IDLE;
+ wake_up(&master_jpeg->enc_hw_wq);
+ atomic_inc(&jpeg->hw_rdy);
return IRQ_HANDLED;
}
@@ -341,6 +355,9 @@ static int mtk_jpegenc_hw_probe(struct platform_device *pdev)
return -ENOMEM;
dev->plat_dev = pdev;
+ atomic_set(&dev->hw_rdy, 1U);
+ spin_lock_init(&dev->hw_lock);
+ dev->hw_state = MTK_JPEG_HW_IDLE;
INIT_DELAYED_WORK(&dev->job_timeout_work,
mtk_jpegenc_timeout_work);
--
2.6.4
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