media: mtk-vcodec: Add irq interface for multi hardware

Adds irq interface for multi hardware.
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c

@@ -24,6 +24,19 @@
 #include "mtk_vcodec_util.h"
 #include "mtk_vcodec_fw.h"
 
+static int mtk_vcodec_get_hw_count(struct mtk_vcodec_dev *dev)
+{
+	switch (dev->vdec_pdata->hw_arch) {
+	case MTK_VDEC_PURE_SINGLE_CORE:
+		return MTK_VDEC_ONE_CORE;
+	case MTK_VDEC_LAT_SINGLE_CORE:
+		return MTK_VDEC_ONE_LAT_ONE_CORE;
+	default:
+		mtk_v4l2_err("hw arch %d not supported", dev->vdec_pdata->hw_arch);
+		return MTK_VDEC_NO_HW;
+	}
+}
+
 static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
 {
 	struct mtk_vcodec_dev *dev = priv;
@@ -55,7 +68,7 @@ static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
 	writel((readl(vdec_misc_addr) & ~VDEC_IRQ_CLR),
 		dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG);
 
-	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED);
+	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED, 0);
 
 	mtk_v4l2_debug(3,
 			"mtk_vcodec_dec_irq_handler :wake up ctx %d, dec_done_status=%x",
@@ -128,7 +141,7 @@ static int fops_vcodec_open(struct file *file)
 {
 	struct mtk_vcodec_dev *dev = video_drvdata(file);
 	struct mtk_vcodec_ctx *ctx = NULL;
-	int ret = 0;
+	int ret = 0, i, hw_count;
 	struct vb2_queue *src_vq;
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
@@ -142,14 +155,24 @@ static int fops_vcodec_open(struct file *file)
 	v4l2_fh_add(&ctx->fh);
 	INIT_LIST_HEAD(&ctx->list);
 	ctx->dev = dev;
-	init_waitqueue_head(&ctx->queue);
-	mutex_init(&ctx->lock);
+	if (ctx->dev->vdec_pdata->is_subdev_supported) {
+		hw_count = mtk_vcodec_get_hw_count(dev);
+		if (!hw_count || !dev->subdev_prob_done) {
+			ret = -EINVAL;
+			goto err_ctrls_setup;
+		}
 
-	if (dev->vdec_pdata->is_subdev_supported && dev->subdev_prob_done) {
 		ret = dev->subdev_prob_done(dev);
 		if (ret)
 			goto err_ctrls_setup;
+
+		for (i = 0; i < hw_count; i++)
+			init_waitqueue_head(&ctx->queue[i]);
+	} else {
+		init_waitqueue_head(&ctx->queue[0]);
 	}
+	mutex_init(&ctx->lock);
+
 	ctx->type = MTK_INST_DECODER;
 	ret = dev->vdec_pdata->ctrls_setup(ctx);
 	if (ret) {

drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c

@@ -84,7 +84,7 @@ static irqreturn_t mtk_vdec_hw_irq_handler(int irq, void *priv)
 	writel(dec_done_status | VDEC_IRQ_CFG, vdec_misc_addr);
 	writel(dec_done_status & ~VDEC_IRQ_CLR, vdec_misc_addr);
 
-	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED);
+	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED, dev->hw_idx);
 
 	mtk_v4l2_debug(3, "wake up ctx %d, dec_done_status=%x",
 		       ctx->id, dec_done_status);

drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h

@@ -104,6 +104,16 @@ enum mtk_vdec_hw_id {
 	MTK_VDEC_HW_MAX,
 };
 
+/*
+ * enum mtk_vdec_hw_count - Supported hardware count
+ */
+enum mtk_vdec_hw_count {
+	MTK_VDEC_NO_HW = 0,
+	MTK_VDEC_ONE_CORE,
+	MTK_VDEC_ONE_LAT_ONE_CORE,
+	MTK_VDEC_MAX_HW_COUNT,
+};
+
 /*
  * struct mtk_video_fmt - Structure used to store information about pixelformats
  */
@@ -293,9 +303,9 @@ struct mtk_vcodec_ctx {
 	struct vdec_pic_info picinfo;
 	int dpb_size;
 
-	int int_cond;
-	int int_type;
-	wait_queue_head_t queue;
+	int int_cond[MTK_VDEC_HW_MAX];
+	int int_type[MTK_VDEC_HW_MAX];
+	wait_queue_head_t queue[MTK_VDEC_HW_MAX];
 	unsigned int irq_status;
 
 	struct v4l2_ctrl_handler ctrl_hdl;
@@ -504,11 +514,12 @@ static inline struct mtk_vcodec_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl)
 }
 
 /* Wake up context wait_queue */
-static inline void wake_up_ctx(struct mtk_vcodec_ctx *ctx, unsigned int reason)
+static inline void
+wake_up_ctx(struct mtk_vcodec_ctx *ctx, unsigned int reason, unsigned int hw_id)
 {
-	ctx->int_cond = 1;
-	ctx->int_type = reason;
-	wake_up_interruptible(&ctx->queue);
+	ctx->int_cond[hw_id] = 1;
+	ctx->int_type[hw_id] = reason;
+	wake_up_interruptible(&ctx->queue[hw_id]);
 }
 
 #endif /* _MTK_VCODEC_DRV_H_ */

drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c

@@ -103,7 +103,7 @@ static irqreturn_t mtk_vcodec_enc_irq_handler(int irq, void *priv)
 
 	clean_irq_status(ctx->irq_status, addr);
 
-	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED);
+	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED, 0);
 	return IRQ_HANDLED;
 }
 
@@ -129,7 +129,7 @@ static int fops_vcodec_open(struct file *file)
 	v4l2_fh_add(&ctx->fh);
 	INIT_LIST_HEAD(&ctx->list);
 	ctx->dev = dev;
-	init_waitqueue_head(&ctx->queue);
+	init_waitqueue_head(&ctx->queue[0]);
 
 	ctx->type = MTK_INST_ENCODER;
 	ret = mtk_vcodec_enc_ctrls_setup(ctx);

drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c

@@ -11,34 +11,32 @@
 #include "mtk_vcodec_intr.h"
 #include "mtk_vcodec_util.h"
 
-int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx  *ctx, int command,
-				 unsigned int timeout_ms)
+int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx *ctx,
+				 int command, unsigned int timeout_ms,
+				 unsigned int hw_id)
 {
-	wait_queue_head_t *waitqueue;
 	long timeout_jiff, ret;
 	int status = 0;
 
-	waitqueue = (wait_queue_head_t *)&ctx->queue;
 	timeout_jiff = msecs_to_jiffies(timeout_ms);
-
-	ret = wait_event_interruptible_timeout(*waitqueue,
-				ctx->int_cond,
+	ret = wait_event_interruptible_timeout(ctx->queue[hw_id],
+					       ctx->int_cond[hw_id],
 					       timeout_jiff);
 
 	if (!ret) {
 		status = -1;	/* timeout */
-		mtk_v4l2_err("[%d] ctx->type=%d, cmd=%d, wait_event_interruptible_timeout time=%ums out %d %d!",
-			     ctx->id, ctx->type, command, timeout_ms,
-			     ctx->int_cond, ctx->int_type);
+		mtk_v4l2_err("[%d] cmd=%d, type=%d, dec timeout=%ums (%d %d)",
+			     ctx->id, command, ctx->type, timeout_ms,
+			     ctx->int_cond[hw_id], ctx->int_type[hw_id]);
 	} else if (-ERESTARTSYS == ret) {
-		mtk_v4l2_err("[%d] ctx->type=%d, cmd=%d, wait_event_interruptible_timeout interrupted by a signal %d %d",
-			     ctx->id, ctx->type, command, ctx->int_cond,
-			     ctx->int_type);
 		status = -1;
+		mtk_v4l2_err("[%d] cmd=%d, type=%d, dec inter fail (%d %d)",
+			     ctx->id, command, ctx->type,
+			     ctx->int_cond[hw_id], ctx->int_type[hw_id]);
 	}
 
-	ctx->int_cond = 0;
-	ctx->int_type = 0;
+	ctx->int_cond[hw_id] = 0;
+	ctx->int_type[hw_id] = 0;
 
 	return status;
 }

drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.h

@@ -12,7 +12,8 @@
 struct mtk_vcodec_ctx;
 
 /* timeout is ms */
-int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx *data, int command,
-				unsigned int timeout_ms);
+int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx *ctx,
+				 int command, unsigned int timeout_ms,
+				 unsigned int hw_id);
 
 #endif /* _MTK_VCODEC_INTR_H_ */

drivers/media/platform/mtk-vcodec/vdec/vdec_h264_if.c

@@ -413,7 +413,7 @@ static int vdec_h264_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 		/* wait decoder done interrupt */
 		err = mtk_vcodec_wait_for_done_ctx(inst->ctx,
 						   MTK_INST_IRQ_RECEIVED,
-						   WAIT_INTR_TIMEOUT_MS);
+						   WAIT_INTR_TIMEOUT_MS, 0);
 		if (err)
 			goto err_free_fb_out;
 

drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c

@@ -727,7 +727,7 @@ static int vdec_h264_slice_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 	/* wait decoder done interrupt */
 	err = mtk_vcodec_wait_for_done_ctx(inst->ctx,
 					   MTK_INST_IRQ_RECEIVED,
-					   WAIT_INTR_TIMEOUT_MS);
+					   WAIT_INTR_TIMEOUT_MS, 0);
 	if (err)
 		goto err_free_fb_out;
 	vpu_dec_end(vpu);

drivers/media/platform/mtk-vcodec/vdec/vdec_vp8_if.c

@@ -488,7 +488,7 @@ static int vdec_vp8_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 
 	/* wait decoder done interrupt */
 	mtk_vcodec_wait_for_done_ctx(inst->ctx, MTK_INST_IRQ_RECEIVED,
-				     WAIT_INTR_TIMEOUT_MS);
+				     WAIT_INTR_TIMEOUT_MS, 0);
 
 	if (inst->vsi->load_data)
 		load_dec_table(inst);

drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c

@@ -539,7 +539,7 @@ static bool vp9_wait_dec_end(struct vdec_vp9_inst *inst)
 
 	mtk_vcodec_wait_for_done_ctx(inst->ctx,
 			MTK_INST_IRQ_RECEIVED,
-			WAIT_INTR_TIMEOUT_MS);
+			WAIT_INTR_TIMEOUT_MS, 0);
 
 	if (ctx->irq_status & MTK_VDEC_IRQ_STATUS_DEC_SUCCESS)
 		return true;

drivers/media/platform/mtk-vcodec/venc/venc_h264_if.c

@@ -335,7 +335,7 @@ static unsigned int h264_enc_wait_venc_done(struct venc_h264_inst *inst)
 	struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)inst->ctx;
 
 	if (!mtk_vcodec_wait_for_done_ctx(ctx, MTK_INST_IRQ_RECEIVED,
-					  WAIT_INTR_TIMEOUT_MS)) {
+					  WAIT_INTR_TIMEOUT_MS, 0)) {
 		irq_status = ctx->irq_status;
 		mtk_vcodec_debug(inst, "irq_status %x <-", irq_status);
 	}

drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c

@@ -222,7 +222,7 @@ static unsigned int vp8_enc_wait_venc_done(struct venc_vp8_inst *inst)
 	struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)inst->ctx;
 
 	if (!mtk_vcodec_wait_for_done_ctx(ctx, MTK_INST_IRQ_RECEIVED,
-					  WAIT_INTR_TIMEOUT_MS)) {
+					  WAIT_INTR_TIMEOUT_MS, 0)) {
 		irq_status = ctx->irq_status;
 		mtk_vcodec_debug(inst, "isr return %x", irq_status);
 	}